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-rw-r--r--src/mesa/drivers/dos/blit.S398
-rw-r--r--src/mesa/drivers/dos/dmesa.c3421
-rw-r--r--src/mesa/drivers/dos/dpmi.c296
-rw-r--r--src/mesa/drivers/dos/internal.h258
-rw-r--r--src/mesa/drivers/dos/mga/m_ttemp.h754
-rw-r--r--src/mesa/drivers/dos/mga/m_ttemp2.h750
-rw-r--r--src/mesa/drivers/dos/mga/mga.c3072
-rw-r--r--src/mesa/drivers/dos/mga/mga.h182
-rw-r--r--src/mesa/drivers/dos/mga/mga_hw.c832
-rw-r--r--src/mesa/drivers/dos/mga/mga_hw.h226
-rw-r--r--src/mesa/drivers/dos/mga/mga_mode.c462
-rw-r--r--src/mesa/drivers/dos/mga/mga_mode.h94
-rw-r--r--src/mesa/drivers/dos/mga/mga_reg.h414
-rw-r--r--src/mesa/drivers/dos/vesa.c1066
-rw-r--r--src/mesa/drivers/dos/vesa.h94
-rw-r--r--src/mesa/drivers/dos/vga.c470
-rw-r--r--src/mesa/drivers/dos/vga.h84
-rw-r--r--src/mesa/drivers/dos/video.c1050
-rw-r--r--src/mesa/drivers/dos/video.h128
-rw-r--r--src/mesa/drivers/dos/virtual.S978
20 files changed, 7540 insertions, 7489 deletions
diff --git a/src/mesa/drivers/dos/blit.S b/src/mesa/drivers/dos/blit.S
index 7d0da5da289..f5888c7e395 100644
--- a/src/mesa/drivers/dos/blit.S
+++ b/src/mesa/drivers/dos/blit.S
@@ -1,199 +1,199 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
- .file "blit.S"
-
-/*
- * extern unsigned int vesa_gran_mask, vesa_gran_shift;
- * extern int vl_video_selector;
-
- * extern void *vl_current_draw_buffer;
- * extern int vl_current_stride, vl_current_height;
- * extern int vl_current_offset, vl_current_delta;
- */
-
- .text
-
-/* Desc: VESA bank switching routine (BIOS)
- *
- * In : EBX=0, EDX = bank number
- * Out : -
- *
- * Note: thrashes EAX
- */
- .p2align 5,,31
-_vesa_swbankBIOS:
- movw $0x4f05, %ax
- int $0x10
- ret
-
- .p2align 2,,3
- .global _vesa_swbank
-_vesa_swbank: .long _vesa_swbankBIOS
-
-/* Desc: void vesa_b_dump_virtual (void);
- *
- * In : -
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _vesa_b_dump_virtual
-_vesa_b_dump_virtual:
- cld
- pushl %es
- pushl %ebx
- pushl %esi
- pushl %edi
- pushl %ebp
- movl _vl_video_selector, %es
- movl _vl_current_draw_buffer, %esi
- movl _vl_current_offset, %edi
- movl _vesa_gran_shift, %ecx
- movl _vesa_gran_mask, %ebp
- movl %edi, %edx
- xorl %ebx, %ebx
- andl %ebp, %edi
- shrl %cl, %edx
- incl %ebp
- call *_vesa_swbank
- movl _vl_current_stride, %ecx
- movl _vl_current_height, %eax
- movl _vl_current_delta, %ebx
- shrl $2, %ecx
- .balign 4
- 0:
- pushl %ecx
- .balign 4
- 1:
- cmpl %ebp, %edi
- jb 2f
- pushl %eax
- pushl %ebx
- incl %edx
- xorl %ebx, %ebx
- call *_vesa_swbank
- popl %ebx
- popl %eax
- subl %ebp, %edi
- .balign 4
- 2:
- movsl
- decl %ecx
- jnz 1b
- popl %ecx
- addl %ebx, %edi
- decl %eax
- jnz 0b
- popl %ebp
- popl %edi
- popl %esi
- popl %ebx
- popl %es
- ret
-
-/* Desc: void vesa_l_dump_virtual (void);
- *
- * In : -
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _vesa_l_dump_virtual
-_vesa_l_dump_virtual:
- cld
- pushl %es
- pushl %esi
- pushl %edi
- movl _vl_video_selector, %es
- movl _vl_current_draw_buffer, %esi
- movl _vl_current_offset, %edi
- movl _vl_current_stride, %ecx
- movl _vl_current_height, %edx
- movl _vl_current_delta, %eax
- shrl $2, %ecx
- .balign 4
- 0:
- pushl %ecx
- rep; movsl
- popl %ecx
- addl %eax, %edi
- decl %edx
- jnz 0b
- popl %edi
- popl %esi
- popl %es
- ret
-
-/* Desc: void vesa_l_dump_virtual_mmx (void);
- *
- * In : -
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _vesa_l_dump_virtual_mmx
-_vesa_l_dump_virtual_mmx:
-#ifdef USE_MMX_ASM
- pushl %esi
- pushl %edi
- movl _vl_video_selector, %fs
- movl _vl_current_draw_buffer, %esi
- movl _vl_current_offset, %edi
- movl _vl_current_stride, %ecx
- movl _vl_current_height, %edx
- movl _vl_current_delta, %eax
- shrl $3, %ecx
- .balign 4
- 0:
- pushl %ecx
- .balign 4
- 1:
- movq (%esi), %mm0
- addl $8, %esi
- movq %mm0, %fs:(%edi)
- addl $8, %edi
- decl %ecx
- jnz 1b
- popl %ecx
- addl %eax, %edi
- decl %edx
- jnz 0b
- popl %edi
- popl %esi
- emms
-#endif
- ret
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+ .file "blit.S"
+
+/*
+ * extern unsigned int vesa_gran_mask, vesa_gran_shift;
+ * extern int vl_video_selector;
+
+ * extern void *vl_current_draw_buffer;
+ * extern int vl_current_stride, vl_current_height;
+ * extern int vl_current_offset, vl_current_delta;
+ */
+
+ .text
+
+/* Desc: VESA bank switching routine (BIOS)
+ *
+ * In : EBX=0, EDX = bank number
+ * Out : -
+ *
+ * Note: thrashes EAX
+ */
+ .p2align 5,,31
+_vesa_swbankBIOS:
+ movw $0x4f05, %ax
+ int $0x10
+ ret
+
+ .p2align 2,,3
+ .global _vesa_swbank
+_vesa_swbank: .long _vesa_swbankBIOS
+
+/* Desc: void vesa_b_dump_virtual (void);
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _vesa_b_dump_virtual
+_vesa_b_dump_virtual:
+ cld
+ pushl %es
+ pushl %ebx
+ pushl %esi
+ pushl %edi
+ pushl %ebp
+ movl _vl_video_selector, %es
+ movl _vl_current_draw_buffer, %esi
+ movl _vl_current_offset, %edi
+ movl _vesa_gran_shift, %ecx
+ movl _vesa_gran_mask, %ebp
+ movl %edi, %edx
+ xorl %ebx, %ebx
+ andl %ebp, %edi
+ shrl %cl, %edx
+ incl %ebp
+ call *_vesa_swbank
+ movl _vl_current_stride, %ecx
+ movl _vl_current_height, %eax
+ movl _vl_current_delta, %ebx
+ shrl $2, %ecx
+ .balign 4
+ 0:
+ pushl %ecx
+ .balign 4
+ 1:
+ cmpl %ebp, %edi
+ jb 2f
+ pushl %eax
+ pushl %ebx
+ incl %edx
+ xorl %ebx, %ebx
+ call *_vesa_swbank
+ popl %ebx
+ popl %eax
+ subl %ebp, %edi
+ .balign 4
+ 2:
+ movsl
+ decl %ecx
+ jnz 1b
+ popl %ecx
+ addl %ebx, %edi
+ decl %eax
+ jnz 0b
+ popl %ebp
+ popl %edi
+ popl %esi
+ popl %ebx
+ popl %es
+ ret
+
+/* Desc: void vesa_l_dump_virtual (void);
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _vesa_l_dump_virtual
+_vesa_l_dump_virtual:
+ cld
+ pushl %es
+ pushl %esi
+ pushl %edi
+ movl _vl_video_selector, %es
+ movl _vl_current_draw_buffer, %esi
+ movl _vl_current_offset, %edi
+ movl _vl_current_stride, %ecx
+ movl _vl_current_height, %edx
+ movl _vl_current_delta, %eax
+ shrl $2, %ecx
+ .balign 4
+ 0:
+ pushl %ecx
+ rep; movsl
+ popl %ecx
+ addl %eax, %edi
+ decl %edx
+ jnz 0b
+ popl %edi
+ popl %esi
+ popl %es
+ ret
+
+/* Desc: void vesa_l_dump_virtual_mmx (void);
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _vesa_l_dump_virtual_mmx
+_vesa_l_dump_virtual_mmx:
+#ifdef USE_MMX_ASM
+ pushl %esi
+ pushl %edi
+ movl _vl_video_selector, %fs
+ movl _vl_current_draw_buffer, %esi
+ movl _vl_current_offset, %edi
+ movl _vl_current_stride, %ecx
+ movl _vl_current_height, %edx
+ movl _vl_current_delta, %eax
+ shrl $3, %ecx
+ .balign 4
+ 0:
+ pushl %ecx
+ .balign 4
+ 1:
+ movq (%esi), %mm0
+ addl $8, %esi
+ movq %mm0, %fs:(%edi)
+ addl $8, %edi
+ decl %ecx
+ jnz 1b
+ popl %ecx
+ addl %eax, %edi
+ decl %edx
+ jnz 0b
+ popl %edi
+ popl %esi
+ emms
+#endif
+ ret
diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c
index a389e3d3397..9ec0036176a 100644
--- a/src/mesa/drivers/dos/dmesa.c
+++ b/src/mesa/drivers/dos/dmesa.c
@@ -1,1685 +1,1736 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0.1
- *
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef FX
-#include "glheader.h"
-#include "context.h"
-#include "extensions.h"
-#include "macros.h"
-#include "matrix.h"
-#include "mmath.h"
-#include "texformat.h"
-#include "texstore.h"
-#include "array_cache/acache.h"
-#include "swrast/s_context.h"
-#include "swrast/s_depth.h"
-#include "swrast/s_lines.h"
-#include "swrast/s_triangle.h"
-#include "swrast/s_trispan.h"
-#include "swrast/swrast.h"
-#include "swrast_setup/swrast_setup.h"
-#include "tnl/tnl.h"
-#include "tnl/t_context.h"
-#include "tnl/t_pipeline.h"
-#ifndef MATROX
-#include "video.h"
-#else /* MATROX */
-#include "mga/mga.h"
-#endif /* MATROX */
-#else /* FX */
-#include "../FX/fxdrv.h"
-#endif /* FX */
-
-#include "GL/dmesa.h"
-
-
-
-/*
- * In C++ terms, this class derives from the GLvisual class.
- * Add system-specific fields to it.
- */
-struct dmesa_visual {
- GLvisual gl_visual;
- GLboolean db_flag; /* double buffered? */
- GLboolean rgb_flag; /* RGB mode? */
- GLuint depth; /* bits per pixel (1, 8, 24, etc) */
-#ifdef MATROX
- int stride_in_pixels;
-#endif
- int zbuffer; /* Z=buffer: 0=no, 1=SW, -1=HW */
-};
-
-/*
- * In C++ terms, this class derives from the GLframebuffer class.
- * Add system-specific fields to it.
- */
-struct dmesa_buffer {
- GLframebuffer gl_buffer; /* The depth, stencil, accum, etc buffers */
- void *the_window; /* your window handle, etc */
-
- int xpos, ypos; /* position */
- int width, height; /* size in pixels */
-};
-
-/*
- * In C++ terms, this class derives from the GLcontext class.
- * Add system-specific fields to it.
- */
-struct dmesa_context {
- GLcontext gl_ctx; /* the core library context */
- DMesaVisual visual;
- DMesaBuffer Buffer;
- GLuint ClearColor;
- GLuint ClearIndex;
- /* etc... */
-};
-
-
-
-#ifndef FX
-/****************************************************************************
- * Read/Write pixels
- ***************************************************************************/
-#define FLIP(y) (dmesa->Buffer->height - (y) - 1)
-#define FLIP2(y) (_b_ - (y))
-
-
-#ifndef MATROX
-#define DSTRIDE dmesa->Buffer->width
-#else
-#define DSTRIDE dmesa->visual->stride_in_pixels
-#define vl_putpixel mga_putpixel
-#define vl_mixrgba mga_mixrgb
-#define vl_mixrgb mga_mixrgb
-#define vl_getrgba mga_getrgba
-#define vl_setz mga_setz
-#define vl_getz mga_getz
-#endif
-
-/****************************************************************************
- * RGB[A]
- ***************************************************************************/
-static void write_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLubyte rgba[][4], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
-#ifndef MATROX
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, vl_mixrgba(rgba[i]));
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, vl_mixrgba(rgba[i]));
- }
- }
-#else /* MATROX */
- y = FLIP(y);
- if (mask) {
- /* draw some pixels */
- offset = 0;
- for (i = 0; i < n; i++) {
- if (mask[i]) {
- ++offset;
- } else {
- if (offset != 0) {
- mga_draw_span_rgb_tx32(x + i - offset, y, offset, (const unsigned long *)(&rgba[i-offset]));
- offset = 0;
- }
- }
- }
- if (offset != 0) {
- mga_draw_span_rgb_tx32(x + n - offset, y, offset, (const unsigned long *)(&rgba[n-offset]));
- }
- } else {
- /* draw all pixels */
- mga_draw_span_rgb_tx32(x, y, n, (const unsigned long *)rgba);
- }
-#endif /* MATROX */
-}
-
-
-
-static void write_rgb_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLubyte rgb[][3], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, vl_mixrgb(rgb[i]));
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, vl_mixrgb(rgb[i]));
- }
- }
-}
-
-
-
-static void write_mono_rgba_span (const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLchan color[4], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset, rgba = vl_mixrgba(color);
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, rgba);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, rgba);
- }
- }
-}
-
-
-
-static void read_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- GLubyte rgba[][4])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- /* read all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_getrgba(offset, rgba[i]);
- }
-}
-
-
-
-static void write_rgba_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte rgba[][4], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
-
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
- }
- }
-}
-
-
-
-static void write_mono_rgba_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLchan color[4], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1, rgba = vl_mixrgba(color);
-
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
- }
- }
-}
-
-
-
-static void read_rgba_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLubyte rgba[][4], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
-
- if (mask) {
- /* read some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
- }
- }
- } else {
- /* read all pixels */
- for (i=0; i<n; i++) {
- vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
- }
- }
-}
-
-
-
-/****************************************************************************
- * Index
- ***************************************************************************/
-#ifndef MATROX
-static void write_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLuint index[], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, index[i]);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, index[i]);
- }
- }
-}
-
-
-
-static void write_index8_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLubyte index[], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, index[i]);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, index[i]);
- }
- }
-}
-
-
-
-static void write_mono_index_span (const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- GLuint colorIndex, const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, colorIndex);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, colorIndex);
- }
- }
-}
-
-
-
-static void read_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- GLuint index[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- /* read all pixels */
- for (i=0; i<n; i++, offset++) {
- index[i] = vl_getpixel(offset);
- }
-}
-
-
-
-static void write_index_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLuint index[], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
-
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
- }
- }
-}
-
-
-
-static void write_mono_index_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLuint colorIndex, const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
-
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
- }
- }
-}
-
-
-
-static void read_index_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLuint index[], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
-
- if (mask) {
- /* read some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
- }
- }
- } else {
- /* read all pixels */
- for (i=0; i<n; i++) {
- index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
- }
- }
-}
-#endif /* !MATROX */
-
-
-
-/****************************************************************************
- * Z-buffer
- ***************************************************************************/
-#ifdef MATROX
-static void write_depth_span (GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLdepth depth[], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some values */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_setz(offset, depth[i]);
- }
- }
- } else {
- /* draw all values */
- for (i=0; i<n; i++, offset++) {
- vl_setz(offset, depth[i]);
- }
- }
-}
-
-
-
-static void read_depth_span (GLcontext *ctx, GLuint n, GLint x, GLint y,
- GLdepth depth[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- /* read all values */
- for (i=0; i<n; i++, offset++) {
- depth[i] = vl_getz(offset);
- }
-}
-
-
-
-static void write_depth_pixels (GLcontext *ctx, GLuint n,
- const GLint x[], const GLint y[],
- const GLdepth depth[], const GLubyte mask[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
-
- if (mask) {
- /* draw some values */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_setz(FLIP2(y[i])*_w_ + x[i], depth[i]);
- }
- }
- } else {
- /* draw all values */
- for (i=0; i<n; i++) {
- vl_setz(FLIP2(y[i])*_w_ + x[i], depth[i]);
- }
- }
-}
-
-
-
-static void read_depth_pixels (GLcontext *ctx, GLuint n,
- const GLint x[], const GLint y[],
- GLdepth depth[])
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
-
- /* read all values */
- for (i=0; i<n; i++) {
- depth[i] = vl_getz(FLIP2(y[i])*_w_ + x[i]);
- }
-}
-#endif /* MATROX */
-
-
-
-/****************************************************************************
- * Optimized triangle rendering
- ***************************************************************************/
-
-/*
- * NON-depth-buffered flat triangle.
- */
-static void tri_rgb_flat (GLcontext *ctx,
- const SWvertex *v0,
- const SWvertex *v1,
- const SWvertex *v2)
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint _b_ = dmesa->Buffer->height - 1;
-#ifndef MATROX
- GLuint _w_ = dmesa->Buffer->width;
-
-#define SETUP_CODE GLuint rgb = vl_mixrgb(v2->color);
-
-#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- vl_putpixel(offset, rgb); \
- }
-
-#include "swrast/s_tritemp.h"
-#else /* MATROX */
- MGAvertex m0, m1, m2;
- m0.win[0] = v0->win[0];
- m0.win[1] = FLIP2(v0->win[1]);
- m1.win[0] = v1->win[0];
- m1.win[1] = FLIP2(v1->win[1]);
- m2.win[0] = v2->win[0];
- m2.win[1] = FLIP2(v2->win[1]);
- *(unsigned long *)m2.color = *(unsigned long *)v2->color;
- mga_draw_tri_rgb_flat((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
-#endif /* MATROX */
-}
-
-
-
-/*
- * Z-less flat triangle.
- */
-static void tri_rgb_flat_zless (GLcontext *ctx,
- const SWvertex *v0,
- const SWvertex *v1,
- const SWvertex *v2)
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint _b_ = dmesa->Buffer->height - 1;
-#ifndef MATROX
- GLuint _w_ = dmesa->Buffer->width;
-
-#define INTERP_Z 1
-#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
-#define SETUP_CODE GLuint rgb = vl_mixrgb(v2->color);
-
-#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- const DEPTH_TYPE z = FixedToDepth(span.z); \
- if (z < zRow[i]) { \
- vl_putpixel(offset, rgb); \
- zRow[i] = z; \
- } \
- span.z += span.zStep; \
- }
-
-#include "swrast/s_tritemp.h"
-#else /* MATROX */
- MGAvertex m0, m1, m2;
- m0.win[0] = v0->win[0];
- m0.win[1] = FLIP2(v0->win[1]);
- m0.win[2] = v0->win[2];
- m1.win[0] = v1->win[0];
- m1.win[1] = FLIP2(v1->win[1]);
- m1.win[2] = v1->win[2];
- m2.win[0] = v2->win[0];
- m2.win[1] = FLIP2(v2->win[1]);
- m2.win[2] = v2->win[2];
- *(unsigned long *)m2.color = *(unsigned long *)v2->color;
- mga_draw_tri_rgb_flat_zless((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
-#endif /* MATROX */
-}
-
-
-
-/*
- * NON-depth-buffered iterated triangle.
- */
-static void tri_rgb_iter (GLcontext *ctx,
- const SWvertex *v0,
- const SWvertex *v1,
- const SWvertex *v2)
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint _b_ = dmesa->Buffer->height - 1;
-#ifndef MATROX
- GLuint _w_ = dmesa->Buffer->width;
-
-#define INTERP_RGB 1
-#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue)); \
- span.red += span.redStep; \
- span.green += span.greenStep; \
- span.blue += span.blueStep; \
- }
-
-#include "swrast/s_tritemp.h"
-#else /* MATROX */
- MGAvertex m0, m1, m2;
- m0.win[0] = v0->win[0];
- m0.win[1] = FLIP2(v0->win[1]);
- m1.win[0] = v1->win[0];
- m1.win[1] = FLIP2(v1->win[1]);
- m2.win[0] = v2->win[0];
- m2.win[1] = FLIP2(v2->win[1]);
- *(unsigned long *)m0.color = *(unsigned long *)v0->color;
- *(unsigned long *)m1.color = *(unsigned long *)v1->color;
- *(unsigned long *)m2.color = *(unsigned long *)v2->color;
- mga_draw_tri_rgb_iter((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
-#endif /* MATROX */
-}
-
-
-
-/*
- * Z-less iterated triangle.
- */
-static void tri_rgb_iter_zless (GLcontext *ctx,
- const SWvertex *v0,
- const SWvertex *v1,
- const SWvertex *v2)
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint _b_ = dmesa->Buffer->height - 1;
-#ifndef MATROX
- GLuint _w_ = dmesa->Buffer->width;
-
-#define INTERP_Z 1
-#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
-#define INTERP_RGB 1
-
-#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- const DEPTH_TYPE z = FixedToDepth(span.z); \
- if (z < zRow[i]) { \
- vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue));\
- zRow[i] = z; \
- } \
- span.red += span.redStep; \
- span.green += span.greenStep; \
- span.blue += span.blueStep; \
- span.z += span.zStep; \
- }
-
-#include "swrast/s_tritemp.h"
-#else /* MATROX */
- MGAvertex m0, m1, m2;
- m0.win[0] = v0->win[0];
- m0.win[1] = FLIP2(v0->win[1]);
- m0.win[2] = v0->win[2];
- m1.win[0] = v1->win[0];
- m1.win[1] = FLIP2(v1->win[1]);
- m1.win[2] = v1->win[2];
- m2.win[0] = v2->win[0];
- m2.win[1] = FLIP2(v2->win[1]);
- m2.win[2] = v2->win[2];
- *(unsigned long *)m0.color = *(unsigned long *)v0->color;
- *(unsigned long *)m1.color = *(unsigned long *)v1->color;
- *(unsigned long *)m2.color = *(unsigned long *)v2->color;
- mga_draw_tri_rgb_iter_zless((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
-#endif /* MATROX */
-}
-
-
-
-/*
- * Analyze context state to see if we can provide a fast triangle function
- * Otherwise, return NULL.
- */
-static swrast_tri_func dmesa_choose_tri_function (GLcontext *ctx)
-{
- const SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- if ((ctx->RenderMode != GL_RENDER)
- || (ctx->Polygon.SmoothFlag)
- || (ctx->Polygon.StippleFlag)
- || (ctx->Texture._EnabledUnits)
- || (swrast->_RasterMask & MULTI_DRAW_BIT)
- || (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)) {
- return (swrast_tri_func)NULL;
- }
-
- if (swrast->_RasterMask==DEPTH_BIT
- && ctx->Depth.Func==GL_LESS
- && ctx->Depth.Mask==GL_TRUE
- && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter_zless : tri_rgb_flat_zless;
- }
-
- if (swrast->_RasterMask==0) { /* no depth test */
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter : tri_rgb_flat;
- }
-
- return (swrast_tri_func)NULL;
-}
-
-
-
-/* Override for the swrast triangle-selection function. Try to use one
- * of our internal triangle functions, otherwise fall back to the
- * standard swrast functions.
- */
-static void dmesa_choose_tri (GLcontext *ctx)
-{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- if (!(swrast->Triangle=dmesa_choose_tri_function(ctx)))
- _swrast_choose_triangle(ctx);
-}
-
-
-
-/****************************************************************************
- * Optimized line rendering
- ***************************************************************************/
-
-#ifdef MATROX
-static __inline void matrox_line_clip_hack (GLcontext *ctx, int _b_, MGAvertex *m0, const SWvertex *vert0, MGAvertex *m1, const SWvertex *vert1)
-{
- int x0 = vert0->win[0];
- int y0 = vert0->win[1];
- int x1 = vert1->win[0];
- int y1 = vert1->win[1];
- /* s_linetemp.h { */
- GLint w = ctx->DrawBuffer->Width;
- GLint h = ctx->DrawBuffer->Height;
- if ((x0==w) | (x1==w)) {
- if ((x0==w) & (x1==w))
- return;
- x0 -= x0==w;
- x1 -= x1==w;
- }
- if ((y0==h) | (y1==h)) {
- if ((y0==h) & (y1==h))
- return;
- y0 -= y0==h;
- y1 -= y1==h;
- }
- /* } s_linetemp.h */
- m0->win[0] = x0;
- m0->win[1] = FLIP2(y0);
- m1->win[0] = x1;
- m1->win[1] = FLIP2(y1);
-}
-#endif
-
-/*
- * NON-depth-buffered flat line.
- */
-static void line_rgb_flat (GLcontext *ctx,
- const SWvertex *vert0,
- const SWvertex *vert1)
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint _b_ = dmesa->Buffer->height - 1;
-#ifndef MATROX
- GLuint _w_ = dmesa->Buffer->width;
- GLuint rgb = vl_mixrgb(vert1->color);
-
-#define INTERP_XY 1
-#define CLIP_HACK 1
-#define PLOT(X,Y) vl_putpixel(FLIP2(Y) * _w_ + X, rgb);
-
-#include "swrast/s_linetemp.h"
-#else
- MGAvertex m0, m1;
- matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
- *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
- mga_draw_line_rgb_flat(&m0, &m1);
-#endif
-}
-
-
-
-/*
- * Z-less flat line.
- */
-static void line_rgb_flat_zless (GLcontext *ctx,
- const SWvertex *vert0,
- const SWvertex *vert1)
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint _b_ = dmesa->Buffer->height - 1;
-#ifndef MATROX
- GLuint _w_ = dmesa->Buffer->width;
- GLuint rgb = vl_mixrgb(vert1->color);
-
-#define INTERP_XY 1
-#define INTERP_Z 1
-#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
-#define CLIP_HACK 1
-#define PLOT(X,Y) \
- if (Z < *zPtr) { \
- *zPtr = Z; \
- vl_putpixel(FLIP2(Y) * _w_ + X, rgb); \
- }
-
-#include "swrast/s_linetemp.h"
-#else
- MGAvertex m0, m1;
- matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
- m0.win[2] = vert0->win[2];
- m1.win[2] = vert1->win[2];
- *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
- mga_draw_line_rgb_flat_zless(&m0, &m1);
-#endif
-}
-
-
-
-#ifndef MATROX
-#define line_rgb_iter NULL
-#define line_rgb_iter_zless NULL
-#else /* MATROX */
-/*
- * NON-depth-buffered iterated line.
- */
-static void line_rgb_iter (GLcontext *ctx,
- const SWvertex *vert0,
- const SWvertex *vert1)
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint _b_ = dmesa->Buffer->height - 1;
- MGAvertex m0, m1;
- matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
- *(unsigned long *)m0.color = *(unsigned long *)vert0->color;
- *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
- mga_draw_line_rgb_iter(&m0, &m1);
-}
-
-
-
-/*
- * Z-less iterated line.
- */
-static void line_rgb_iter_zless (GLcontext *ctx,
- const SWvertex *vert0,
- const SWvertex *vert1)
-{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint _b_ = dmesa->Buffer->height - 1;
- MGAvertex m0, m1;
- matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
- m0.win[2] = vert0->win[2];
- m1.win[2] = vert1->win[2];
- *(unsigned long *)m0.color = *(unsigned long *)vert0->color;
- *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
- mga_draw_line_rgb_iter_zless(&m0, &m1);
-}
-#endif /* MATROX */
-
-
-
-/*
- * Analyze context state to see if we can provide a fast line function
- * Otherwise, return NULL.
- */
-static swrast_line_func dmesa_choose_line_function (GLcontext *ctx)
-{
- const SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- if ((ctx->RenderMode != GL_RENDER)
- || (ctx->Line.SmoothFlag)
- || (ctx->Texture._EnabledUnits)
- || (ctx->Line.StippleFlag)
- || (swrast->_RasterMask & MULTI_DRAW_BIT)
- || (ctx->Line.Width!=1.0F)) {
- return (swrast_line_func)NULL;
- }
-
- if (swrast->_RasterMask==DEPTH_BIT
- && ctx->Depth.Func==GL_LESS
- && ctx->Depth.Mask==GL_TRUE
- && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter_zless : line_rgb_flat_zless;
- }
-
- if (swrast->_RasterMask==0) { /* no depth test */
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter : line_rgb_flat;
- }
-
- return (swrast_line_func)NULL;
-}
-
-
-
-/* Override for the swrast line-selection function. Try to use one
- * of our internal line functions, otherwise fall back to the
- * standard swrast functions.
- */
-static void dmesa_choose_line (GLcontext *ctx)
-{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- if (!(swrast->Line=dmesa_choose_line_function(ctx)))
- _swrast_choose_line(ctx);
-}
-
-
-
-/****************************************************************************
- * Miscellaneous device driver funcs
- ***************************************************************************/
-
-static void clear_index (GLcontext *ctx, GLuint index)
-{
- ((DMesaContext)ctx)->ClearIndex = index;
-}
-
-static void clear_color (GLcontext *ctx, const GLfloat color[4])
-{
- GLubyte col[4];
- CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
- CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
- CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
- CLAMPED_FLOAT_TO_UBYTE(col[3], color[3]);
- ((DMesaContext)ctx)->ClearColor = vl_mixrgba(col);
-}
-
-
-
-static void clear (GLcontext *ctx, GLbitfield mask, GLboolean all,
- GLint x, GLint y, GLint width, GLint height)
-{
- const DMesaContext c = (DMesaContext)ctx;
- const GLuint *colorMask = (GLuint *)&ctx->Color.ColorMask;
-
-/*
- * Clear the specified region of the buffers indicated by 'mask'
- * using the clear color or index as specified by one of the two
- * functions above.
- * If all==GL_TRUE, clear whole buffer, else just clear region defined
- * by x,y,width,height
- */
-
- /* we can't handle color or index masking */
- if ((*colorMask == 0xffffffff) && (ctx->Color.IndexMask == 0xffffffff)) {
-#ifndef MATROX
- if (mask & DD_BACK_LEFT_BIT) {
- int color = c->visual->rgb_flag ? c->ClearColor : c->ClearIndex;
-
- if (all) {
- vl_clear(color);
- } else {
- vl_rect(x, y, width, height, color);
- }
-
- mask &= ~DD_BACK_LEFT_BIT;
- }
-#else /* MATROX */
- unsigned short z = -1;
- int color = c->ClearColor;
- if (mask & DD_DEPTH_BIT) {
- z = ctx->Depth.Clear * 0xffff;
- }
- if (all) {
- mga_clear(mask & DD_FRONT_LEFT_BIT,
- mask & DD_BACK_LEFT_BIT,
- mask & DD_DEPTH_BIT,
- 0, 0, c->Buffer->width, c->Buffer->height,
- color, z);
- } else {
- mga_clear(mask & DD_FRONT_LEFT_BIT,
- mask & DD_BACK_LEFT_BIT,
- mask & DD_DEPTH_BIT,
- x, y, width, height,
- color, z);
- }
- mask &= ~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT | DD_DEPTH_BIT);
-#endif /* MATROX */
- }
-
- if (mask) {
- _swrast_Clear(ctx, mask, all, x, y, width, height);
- }
-}
-
-
-
-static void set_buffer (GLcontext *ctx, GLframebuffer *colorBuffer, GLuint bufferBit)
-{
- /*
- * XXX todo - examine bufferBit and set read/write pointers
- */
-}
-
-
-
-/*
- * Return the width and height of the current buffer.
- * If anything special has to been done when the buffer/window is
- * resized, do it now.
- */
-static void get_buffer_size (GLframebuffer *buffer, GLuint *width, GLuint *height)
-{
- DMesaBuffer b = (DMesaBuffer)buffer;
-
- *width = b->width;
- *height = b->height;
-}
-
-
-
-static const GLubyte* get_string (GLcontext *ctx, GLenum name)
-{
- switch (name) {
- case GL_RENDERER:
- return (const GLubyte *)"Mesa DJGPP"
- #ifdef FX
- " (FX)"
- #endif
- #ifdef MATROX
- " (MGA)"
- #endif
- "\0port (c) Borca Daniel mar-2003";
- default:
- return NULL;
- }
-}
-
-
-
-static void finish (GLcontext *ctx)
-{
- /*
- * XXX todo - OPTIONAL FUNCTION: implements glFinish if possible
- */
-}
-
-
-
-static void flush (GLcontext *ctx)
-{
- /*
- * XXX todo - OPTIONAL FUNCTION: implements glFlush if possible
- */
-}
-
-
-
-/****************************************************************************
- * State
- ***************************************************************************/
-#define DMESA_NEW_LINE (_NEW_LINE | \
- _NEW_TEXTURE | \
- _NEW_LIGHT | \
- _NEW_DEPTH | \
- _NEW_RENDERMODE | \
- _SWRAST_NEW_RASTERMASK)
-
-#define DMESA_NEW_TRIANGLE (_NEW_POLYGON | \
- _NEW_TEXTURE | \
- _NEW_LIGHT | \
- _NEW_DEPTH | \
- _NEW_RENDERMODE | \
- _SWRAST_NEW_RASTERMASK)
-
-/* Extend the software rasterizer with our line and triangle
- * functions.
- */
-static void dmesa_register_swrast_functions (GLcontext *ctx)
-{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- swrast->choose_line = dmesa_choose_line;
- swrast->choose_triangle = dmesa_choose_tri;
-
- swrast->invalidate_line |= DMESA_NEW_LINE;
- swrast->invalidate_triangle |= DMESA_NEW_TRIANGLE;
-}
-
-
-
-/* Setup pointers and other driver state that is constant for the life
- * of a context.
- */
-static void dmesa_init_pointers (GLcontext *ctx)
-{
- TNLcontext *tnl;
- struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference(ctx);
-
- ctx->Driver.GetString = get_string;
- ctx->Driver.GetBufferSize = get_buffer_size;
- ctx->Driver.Flush = flush;
- ctx->Driver.Finish = finish;
-
- /* Software rasterizer pixel paths:
- */
- ctx->Driver.Accum = _swrast_Accum;
- ctx->Driver.Bitmap = _swrast_Bitmap;
- ctx->Driver.Clear = clear;
- ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
- ctx->Driver.CopyPixels = _swrast_CopyPixels;
- ctx->Driver.DrawPixels = _swrast_DrawPixels;
- ctx->Driver.ReadPixels = _swrast_ReadPixels;
- ctx->Driver.DrawBuffer = _swrast_DrawBuffer;
-
- /* Software texture functions:
- */
- ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
- ctx->Driver.TexImage1D = _mesa_store_teximage1d;
- ctx->Driver.TexImage2D = _mesa_store_teximage2d;
- ctx->Driver.TexImage3D = _mesa_store_teximage3d;
- ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
- ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d;
- ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
- ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
-
- ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
- ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
- ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
- ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
- ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
-
- ctx->Driver.CompressedTexImage1D = _mesa_store_compressed_teximage1d;
- ctx->Driver.CompressedTexImage2D = _mesa_store_compressed_teximage2d;
- ctx->Driver.CompressedTexImage3D = _mesa_store_compressed_teximage3d;
- ctx->Driver.CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
- ctx->Driver.CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
- ctx->Driver.CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
-
- /* Swrast hooks for imaging extensions:
- */
- ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
- ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
- ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
- ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
-
- /* Statechange callbacks:
- */
- ctx->Driver.ClearColor = clear_color;
- ctx->Driver.ClearIndex = clear_index;
-
- /* Initialize the TNL driver interface:
- */
- tnl = TNL_CONTEXT(ctx);
- tnl->Driver.RunPipeline = _tnl_run_pipeline;
-
- dd->SetBuffer = set_buffer;
-
- /* Install swsetup for tnl->Driver.Render.*:
- */
- _swsetup_Wakeup(ctx);
-
- /* The span functions should be in `dmesa_update_state', but I'm
- * pretty sure they will never change during the life of the Visual
- */
-#ifdef MATROX
- if (((DMesaContext)ctx)->visual->zbuffer == -1) {
- /* Depth span/pixel functions */
- dd->WriteDepthSpan = write_depth_span;
- dd->WriteDepthPixels = write_depth_pixels;
- dd->ReadDepthSpan = read_depth_span;
- dd->ReadDepthPixels = read_depth_pixels;
- }
-#endif
-
-#ifndef MATROX
- /* Index span/pixel functions */
- dd->WriteCI32Span = write_index_span;
- dd->WriteCI8Span = write_index8_span;
- dd->WriteMonoCISpan = write_mono_index_span;
- dd->WriteCI32Pixels = write_index_pixels;
- dd->WriteMonoCIPixels = write_mono_index_pixels;
- dd->ReadCI32Span = read_index_span;
- dd->ReadCI32Pixels = read_index_pixels;
-#endif
-
- /* RGB(A) span/pixel functions */
- dd->WriteRGBASpan = write_rgba_span;
- dd->WriteRGBSpan = write_rgb_span;
- dd->WriteMonoRGBASpan = write_mono_rgba_span;
- dd->WriteRGBAPixels = write_rgba_pixels;
- dd->WriteMonoRGBAPixels = write_mono_rgba_pixels;
- dd->ReadRGBASpan = read_rgba_span;
- dd->ReadRGBAPixels = read_rgba_pixels;
-}
-
-
-
-static void dmesa_update_state (GLcontext *ctx, GLuint new_state)
-{
- /* Propogate statechange information to swrast and swrast_setup
- * modules. The DMesa driver has no internal GL-dependent state.
- */
- _swrast_InvalidateState( ctx, new_state );
- _ac_InvalidateState( ctx, new_state );
- _tnl_InvalidateState( ctx, new_state );
- _swsetup_InvalidateState( ctx, new_state );
-}
-#endif /* FX */
-
-
-
-/****************************************************************************
- * DMesa Public API Functions
- ***************************************************************************/
-
-/*
- * The exact arguments to this function will depend on your window system
- */
-DMesaVisual DMesaCreateVisual (GLint width,
- GLint height,
- GLint colDepth,
- GLint refresh,
- GLboolean dbFlag,
- GLboolean rgbFlag,
- GLboolean alphaFlag,
- GLint depthSize,
- GLint stencilSize,
- GLint accumSize)
-{
-#ifndef FX
- DMesaVisual v;
- GLint redBits, greenBits, blueBits, alphaBits, indexBits;
-
-#ifndef MATROX
- if (!dbFlag) {
- return NULL;
- }
-#else
- if (!rgbFlag) {
- return NULL;
- }
-#endif
-
- alphaBits = 0;
-
- if (!rgbFlag) {
- indexBits = 8;
- redBits = 0;
- greenBits = 0;
- blueBits = 0;
- } else {
- indexBits = 0;
- switch (colDepth) {
- case 8:
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
- break;
- case 15:
- redBits = 5;
- greenBits = 5;
- blueBits = 5;
- break;
- case 16:
- redBits = 5;
- greenBits = 6;
- blueBits = 5;
- break;
- case 32:
- alphaBits = 8;
- case 24:
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
- break;
- default:
- return NULL;
- }
- }
-
-#ifndef MATROX
- if ((colDepth=vl_video_init(width, height, colDepth, rgbFlag, refresh)) <= 0) {
- return NULL;
- }
-#else
- if (mga_open(width, height, colDepth, dbFlag ? 2 : 1, depthSize == 16, refresh) < 0) {
- return NULL;
- }
-#endif
-
- if (alphaFlag && (alphaBits==0)) {
- alphaBits = 8;
- }
-
- if ((v=(DMesaVisual)CALLOC_STRUCT(dmesa_visual)) != NULL) {
- /* Create core visual */
- _mesa_initialize_visual((GLvisual *)v,
- rgbFlag, /* rgb */
- dbFlag,
- GL_FALSE, /* stereo */
- redBits,
- greenBits,
- blueBits,
- alphaBits,
- indexBits, /* indexBits */
- depthSize,
- stencilSize,
- accumSize, /* accumRed */
- accumSize, /* accumGreen */
- accumSize, /* accumBlue */
- alphaFlag?accumSize:0, /* accumAlpha */
- 1); /* numSamples */
-
- v->depth = colDepth;
- v->db_flag = dbFlag;
- v->rgb_flag = rgbFlag;
-
- v->zbuffer = (depthSize > 0) ? 1 : 0;
-#ifdef MATROX
- mga_get(MGA_GET_HPIXELS, &v->stride_in_pixels);
- if (depthSize == 16) {
- v->zbuffer = -1;
- }
-#endif
- }
-
- return v;
-
-#else /* FX */
-
- int i = 0, fx_attrib[32];
-
- if (!rgbFlag) {
- return NULL;
- }
-
- if (dbFlag) fx_attrib[i++] = FXMESA_DOUBLEBUFFER;
- if (depthSize > 0) { fx_attrib[i++] = FXMESA_DEPTH_SIZE; fx_attrib[i++] = depthSize; }
- if (stencilSize > 0) { fx_attrib[i++] = FXMESA_STENCIL_SIZE; fx_attrib[i++] = stencilSize; }
- if (accumSize > 0) { fx_attrib[i++] = FXMESA_ACCUM_SIZE; fx_attrib[i++] = accumSize; }
- if (alphaFlag) { fx_attrib[i++] = FXMESA_ALPHA_SIZE; fx_attrib[i++] = 1; }
- fx_attrib[i] = FXMESA_NONE;
-
- return (DMesaVisual)fxMesaCreateBestContext(-1, width, height, fx_attrib);
-#endif /* FX */
-}
-
-
-
-void DMesaDestroyVisual (DMesaVisual v)
-{
-#ifndef FX
- _mesa_destroy_visual((GLvisual *)v);
-
-#ifndef MATROX
- vl_video_exit();
-#else
- mga_close(1, 1);
-#endif
-
-#else
- fxMesaDestroyContext((fxMesaContext)v);
-#endif
-}
-
-
-
-DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
- GLint xpos, GLint ypos,
- GLint width, GLint height)
-{
-#ifndef FX
- DMesaBuffer b;
-
- if ((b=(DMesaBuffer)CALLOC_STRUCT(dmesa_buffer)) != NULL) {
- _mesa_initialize_framebuffer((GLframebuffer *)b,
- (GLvisual *)visual,
- visual->zbuffer == 1,
- ((GLvisual *)visual)->stencilBits > 0,
- ((GLvisual *)visual)->accumRedBits > 0,
- ((GLvisual *)visual)->alphaBits > 0);
- b->xpos = xpos;
- b->ypos = ypos;
- b->width = width;
- b->height = height;
- }
-
- return b;
-#else
- return (DMesaBuffer)visual;
-#endif
-}
-
-
-
-void DMesaDestroyBuffer (DMesaBuffer b)
-{
-#ifndef FX
-#ifndef MATROX
- free(b->the_window);
-#endif
- _mesa_destroy_framebuffer((GLframebuffer *)b);
-#endif
-}
-
-
-
-DMesaContext DMesaCreateContext (DMesaVisual visual,
- DMesaContext share)
-{
-#ifndef FX
- DMesaContext c;
- GLboolean direct = GL_FALSE;
-
- if ((c=(DMesaContext)CALLOC_STRUCT(dmesa_context)) != NULL) {
- _mesa_initialize_context((GLcontext *)c,
- (GLvisual *)visual,
- (GLcontext *)share,
- (void *)c, direct);
-
- _mesa_enable_sw_extensions((GLcontext *)c);
- _mesa_enable_1_3_extensions((GLcontext *)c);
- _mesa_enable_1_4_extensions((GLcontext *)c);
-
- /* you probably have to do a bunch of other initializations here. */
- c->visual = visual;
-
- ((GLcontext *)c)->Driver.UpdateState = dmesa_update_state;
-
- /* Initialize the software rasterizer and helper modules.
- */
- _swrast_CreateContext((GLcontext *)c);
- _ac_CreateContext((GLcontext *)c);
- _tnl_CreateContext((GLcontext *)c);
- _swsetup_CreateContext((GLcontext *)c);
- if (visual->rgb_flag) dmesa_register_swrast_functions((GLcontext *)c);
- dmesa_init_pointers((GLcontext *)c);
- }
-
- return c;
-
-#else /* FX */
- return (DMesaContext)visual;
-#endif /* FX */
-}
-
-
-
-void DMesaDestroyContext (DMesaContext c)
-{
-#ifndef FX
- if (c) {
- _swsetup_DestroyContext((GLcontext *)c);
- _swrast_DestroyContext((GLcontext *)c);
- _tnl_DestroyContext((GLcontext *)c);
- _ac_DestroyContext((GLcontext *)c);
- _mesa_destroy_context((GLcontext *)c);
- }
-#endif
-}
-
-
-
-GLboolean DMesaMoveBuffer (GLint xpos, GLint ypos)
-{
-#if !defined(FX) && !defined(MATROX)
- GET_CURRENT_CONTEXT(ctx);
- DMesaBuffer b = ((DMesaContext)ctx)->Buffer;
-
- if (vl_sync_buffer(&b->the_window, xpos, ypos, b->width, b->height) != 0) {
- return GL_FALSE;
- } else {
- b->xpos = xpos;
- b->ypos = ypos;
- return GL_TRUE;
- }
-
-#else
- return GL_FALSE;
-#endif
-}
-
-
-
-GLboolean DMesaResizeBuffer (GLint width, GLint height)
-{
-#if !defined(FX) && !defined(MATROX)
- GET_CURRENT_CONTEXT(ctx);
- DMesaBuffer b = ((DMesaContext)ctx)->Buffer;
-
- if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, width, height) != 0) {
- return GL_FALSE;
- } else {
- b->width = width;
- b->height = height;
- return GL_TRUE;
- }
-
-#else
- return GL_FALSE;
-#endif
-}
-
-
-
-/*
- * Make the specified context and buffer the current one.
- */
-GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)
-{
-#ifndef FX
- if ((c != NULL) && (b != NULL)) {
-#ifndef MATROX
- if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, b->width, b->height) != 0) {
- return GL_FALSE;
- }
-#endif
-
- c->Buffer = b;
-
- _mesa_make_current((GLcontext *)c, (GLframebuffer *)b);
- if (((GLcontext *)c)->Viewport.Width == 0) {
- /* initialize viewport to window size */
- _mesa_Viewport(0, 0, b->width, b->height);
- }
- } else {
- /* Detach */
- _mesa_make_current(NULL, NULL);
- }
-
-#else
- fxMesaMakeCurrent((fxMesaContext)c);
-#endif
-
- return GL_TRUE;
-}
-
-
-
-void DMesaSwapBuffers (DMesaBuffer b)
-{
- /* copy/swap back buffer to front if applicable */
-#ifndef FX
- GET_CURRENT_CONTEXT(ctx);
- _mesa_notifySwapBuffers(ctx);
-#ifndef MATROX
- vl_flip();
-#else
- if (((DMesaContext)ctx)->visual->db_flag) {
- mga_swapbuffers(1);
- }
-#endif
-#else
- fxMesaSwapBuffers();
-#endif
-}
-
-
-
-void DMesaSetCI (int ndx, GLfloat red, GLfloat green, GLfloat blue)
-{
-#if !defined(FX) && !defined(MATROX)
- vl_setCI(ndx, red, green, blue);
-#endif
-}
-
-
-
-DMesaContext DMesaGetCurrentContext (void)
-{
-#ifndef FX
- GET_CURRENT_CONTEXT(ctx);
- return (DMesaContext)ctx;
-#else
- return (DMesaContext)fxMesaGetCurrentContext();
-#endif
-}
-
-
-
-int DMesaGetIntegerv (GLenum pname, GLint *params)
-{
-#ifndef FX
- GET_CURRENT_CONTEXT(ctx);
- const DMesaContext c = (DMesaContext)ctx;
-#else
- const fxMesaContext c = fxMesaGetCurrentContext();
-#endif
-
- if (c == NULL) {
- return -1;
- }
-
- switch (pname) {
- case DMESA_GET_SCREEN_SIZE:
- #ifndef FX
- #ifndef MATROX
- vl_get(VL_GET_SCREEN_SIZE, params);
- #else
- mga_get(MGA_GET_SCREEN_SIZE, params);
- #endif
- #else
- params[0] = c->screen_width;
- params[1] = c->screen_height;
- #endif
- break;
- case DMESA_GET_DRIVER_CAPS:
- #ifndef FX
- #ifndef MATROX
- params[0] = DMESA_DRIVER_SWDB_BIT;
- #else
- params[0] = 0;
- #endif
- #else
- params[0] = DMESA_DRIVER_LLWO_BIT;
- #endif
- break;
- default:
- return -1;
- }
-
- return 0;
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0.1
+ *
+ * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.4 for Mesa
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef FX
+#include "glheader.h"
+#include "context.h"
+#include "extensions.h"
+#include "macros.h"
+#include "matrix.h"
+#include "mtypes.h"
+#include "texformat.h"
+#include "teximage.h"
+#include "texstore.h"
+#include "imports.h"
+#include "array_cache/acache.h"
+#include "swrast/s_context.h"
+#include "swrast/s_depth.h"
+#include "swrast/s_lines.h"
+#include "swrast/s_triangle.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+#ifndef MATROX
+#include "video.h"
+#else /* MATROX */
+#include "mga/mga.h"
+#endif /* MATROX */
+#else /* FX */
+#include "../glide/fxdrv.h"
+#endif /* FX */
+
+#include "GL/dmesa.h"
+
+
+
+/*
+ * In C++ terms, this class derives from the GLvisual class.
+ * Add system-specific fields to it.
+ */
+struct dmesa_visual {
+ GLvisual gl_visual;
+ GLboolean db_flag; /* double buffered? */
+ GLboolean rgb_flag; /* RGB mode? */
+ GLuint depth; /* bits per pixel (1, 8, 24, etc) */
+#ifdef MATROX
+ int stride_in_pixels;
+#endif
+ int zbuffer; /* Z=buffer: 0=no, 1=SW, -1=HW */
+};
+
+/*
+ * In C++ terms, this class derives from the GLframebuffer class.
+ * Add system-specific fields to it.
+ */
+struct dmesa_buffer {
+ GLframebuffer gl_buffer; /* The depth, stencil, accum, etc buffers */
+ void *the_window; /* your window handle, etc */
+
+ int xpos, ypos; /* position */
+ int width, height; /* size in pixels */
+};
+
+/*
+ * In C++ terms, this class derives from the GLcontext class.
+ * Add system-specific fields to it.
+ */
+struct dmesa_context {
+ GLcontext gl_ctx; /* the core library context */
+ DMesaVisual visual;
+ DMesaBuffer Buffer;
+ GLuint ClearColor;
+ GLuint ClearIndex;
+ /* etc... */
+};
+
+
+
+#ifndef FX
+/****************************************************************************
+ * Read/Write pixels
+ ***************************************************************************/
+#define FLIP(y) (dmesa->Buffer->height - (y) - 1)
+#define FLIP2(y) (_b_ - (y))
+
+
+#ifndef MATROX
+#define DSTRIDE dmesa->Buffer->width
+#else
+#define DSTRIDE dmesa->visual->stride_in_pixels
+#define vl_putpixel mga_putpixel
+#define vl_mixrgba mga_mixrgb
+#define vl_mixrgb mga_mixrgb
+#define vl_getrgba mga_getrgba
+#define vl_setz mga_setz
+#define vl_getz mga_getz
+#endif
+
+/****************************************************************************
+ * RGB[A]
+ ***************************************************************************/
+static void write_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLubyte rgba[][4], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+#ifndef MATROX
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, vl_mixrgba(rgba[i]));
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++, offset++) {
+ vl_putpixel(offset, vl_mixrgba(rgba[i]));
+ }
+ }
+#else /* MATROX */
+ y = FLIP(y);
+ if (mask) {
+ /* draw some pixels */
+ offset = 0;
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ ++offset;
+ } else {
+ if (offset != 0) {
+ mga_draw_span_rgb_tx32(x + i - offset, y, offset, (const unsigned long *)(&rgba[i-offset]));
+ offset = 0;
+ }
+ }
+ }
+ if (offset != 0) {
+ mga_draw_span_rgb_tx32(x + n - offset, y, offset, (const unsigned long *)(&rgba[n-offset]));
+ }
+ } else {
+ /* draw all pixels */
+ mga_draw_span_rgb_tx32(x, y, n, (const unsigned long *)rgba);
+ }
+#endif /* MATROX */
+}
+
+
+
+static void write_rgb_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLubyte rgb[][3], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, vl_mixrgb(rgb[i]));
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++, offset++) {
+ vl_putpixel(offset, vl_mixrgb(rgb[i]));
+ }
+ }
+}
+
+
+
+static void write_mono_rgba_span (const GLcontext *ctx,
+ GLuint n, GLint x, GLint y,
+ const GLchan color[4], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset, rgba = vl_mixrgba(color);
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, rgba);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++, offset++) {
+ vl_putpixel(offset, rgba);
+ }
+ }
+}
+
+
+
+static void read_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLubyte rgba[][4])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ /* read all pixels */
+ for (i=0; i<n; i++, offset++) {
+ vl_getrgba(offset, rgba[i]);
+ }
+}
+
+
+
+static void write_rgba_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLubyte rgba[][4], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
+ }
+ }
+}
+
+
+
+static void write_mono_rgba_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLchan color[4], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1, rgba = vl_mixrgba(color);
+
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
+ }
+ }
+}
+
+
+
+static void read_rgba_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLubyte rgba[][4], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ if (mask) {
+ /* read some pixels */
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
+ }
+ }
+ } else {
+ /* read all pixels */
+ for (i=0; i<n; i++) {
+ vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
+ }
+ }
+}
+
+
+
+/****************************************************************************
+ * Index
+ ***************************************************************************/
+#ifndef MATROX
+static void write_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLuint index[], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, index[i]);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++, offset++) {
+ vl_putpixel(offset, index[i]);
+ }
+ }
+}
+
+
+
+static void write_index8_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLubyte index[], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, index[i]);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++, offset++) {
+ vl_putpixel(offset, index[i]);
+ }
+ }
+}
+
+
+
+static void write_mono_index_span (const GLcontext *ctx,
+ GLuint n, GLint x, GLint y,
+ GLuint colorIndex, const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, colorIndex);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++, offset++) {
+ vl_putpixel(offset, colorIndex);
+ }
+ }
+}
+
+
+
+static void read_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLuint index[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ /* read all pixels */
+ for (i=0; i<n; i++, offset++) {
+ index[i] = vl_getpixel(offset);
+ }
+}
+
+
+
+static void write_index_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLuint index[], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
+ }
+ }
+}
+
+
+
+static void write_mono_index_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLuint colorIndex, const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ if (mask) {
+ /* draw some pixels */
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i=0; i<n; i++) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
+ }
+ }
+}
+
+
+
+static void read_index_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLuint index[], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ if (mask) {
+ /* read some pixels */
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
+ }
+ }
+ } else {
+ /* read all pixels */
+ for (i=0; i<n; i++) {
+ index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
+ }
+ }
+}
+#endif /* !MATROX */
+
+
+
+/****************************************************************************
+ * Z-buffer
+ ***************************************************************************/
+#ifdef MATROX
+static void write_depth_span (GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLdepth depth[], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some values */
+ for (i=0; i<n; i++, offset++) {
+ if (mask[i]) {
+ vl_setz(offset, depth[i]);
+ }
+ }
+ } else {
+ /* draw all values */
+ for (i=0; i<n; i++, offset++) {
+ vl_setz(offset, depth[i]);
+ }
+ }
+}
+
+
+
+static void read_depth_span (GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLdepth depth[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ /* read all values */
+ for (i=0; i<n; i++, offset++) {
+ depth[i] = vl_getz(offset);
+ }
+}
+
+
+
+static void write_depth_pixels (GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ const GLdepth depth[], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ if (mask) {
+ /* draw some values */
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ vl_setz(FLIP2(y[i])*_w_ + x[i], depth[i]);
+ }
+ }
+ } else {
+ /* draw all values */
+ for (i=0; i<n; i++) {
+ vl_setz(FLIP2(y[i])*_w_ + x[i], depth[i]);
+ }
+ }
+}
+
+
+
+static void read_depth_pixels (GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ GLdepth depth[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ /* read all values */
+ for (i=0; i<n; i++) {
+ depth[i] = vl_getz(FLIP2(y[i])*_w_ + x[i]);
+ }
+}
+#endif /* MATROX */
+
+
+
+/****************************************************************************
+ * Optimized triangle rendering
+ ***************************************************************************/
+
+/*
+ * NON-depth-buffered flat triangle.
+ */
+#ifndef MATROX
+
+#define NAME tri_rgb_flat
+
+#define SETUP_CODE \
+ const DMesaContext dmesa = (DMesaContext)ctx; \
+ GLuint _b_ = dmesa->Buffer->height - 1; \
+ GLuint _w_ = dmesa->Buffer->width; \
+ GLuint rgb = vl_mixrgb(v2->color);
+
+#define RENDER_SPAN(span) \
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
+ for (i = 0; i < span.end; i++, offset++) { \
+ vl_putpixel(offset, rgb); \
+ }
+
+#include "swrast/s_tritemp.h"
+
+#else /* MATROX */
+
+static void tri_rgb_flat (GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1, m2;
+ m0.win[0] = v0->win[0];
+ m0.win[1] = FLIP2(v0->win[1]);
+ m1.win[0] = v1->win[0];
+ m1.win[1] = FLIP2(v1->win[1]);
+ m2.win[0] = v2->win[0];
+ m2.win[1] = FLIP2(v2->win[1]);
+ *(unsigned long *)m2.color = *(unsigned long *)v2->color;
+ mga_draw_tri_rgb_flat((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
+}
+#endif /* MATROX */
+
+
+
+/*
+ * Z-less flat triangle.
+ */
+#ifndef MATROX
+
+#define NAME tri_rgb_flat_zless
+
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+
+#define SETUP_CODE \
+ const DMesaContext dmesa = (DMesaContext)ctx; \
+ GLuint _b_ = dmesa->Buffer->height - 1; \
+ GLuint _w_ = dmesa->Buffer->width; \
+ GLuint rgb = vl_mixrgb(v2->color);
+
+#define RENDER_SPAN(span) \
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
+ for (i = 0; i < span.end; i++, offset++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ vl_putpixel(offset, rgb); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
+
+#include "swrast/s_tritemp.h"
+
+#else /* MATROX */
+
+static void tri_rgb_flat_zless (GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1, m2;
+ m0.win[0] = v0->win[0];
+ m0.win[1] = FLIP2(v0->win[1]);
+ m0.win[2] = v0->win[2];
+ m1.win[0] = v1->win[0];
+ m1.win[1] = FLIP2(v1->win[1]);
+ m1.win[2] = v1->win[2];
+ m2.win[0] = v2->win[0];
+ m2.win[1] = FLIP2(v2->win[1]);
+ m2.win[2] = v2->win[2];
+ *(unsigned long *)m2.color = *(unsigned long *)v2->color;
+ mga_draw_tri_rgb_flat_zless((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
+}
+#endif /* MATROX */
+
+
+
+/*
+ * NON-depth-buffered iterated triangle.
+ */
+#ifndef MATROX
+
+#define NAME tri_rgb_iter
+
+#define INTERP_RGB 1
+
+#define SETUP_CODE \
+ const DMesaContext dmesa = (DMesaContext)ctx; \
+ GLuint _b_ = dmesa->Buffer->height - 1; \
+ GLuint _w_ = dmesa->Buffer->width;
+
+#define RENDER_SPAN(span) \
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
+ for (i = 0; i < span.end; i++, offset++) { \
+ vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue)); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
+
+#include "swrast/s_tritemp.h"
+
+#else /* MATROX */
+
+static void tri_rgb_iter (GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1, m2;
+ m0.win[0] = v0->win[0];
+ m0.win[1] = FLIP2(v0->win[1]);
+ m1.win[0] = v1->win[0];
+ m1.win[1] = FLIP2(v1->win[1]);
+ m2.win[0] = v2->win[0];
+ m2.win[1] = FLIP2(v2->win[1]);
+ *(unsigned long *)m0.color = *(unsigned long *)v0->color;
+ *(unsigned long *)m1.color = *(unsigned long *)v1->color;
+ *(unsigned long *)m2.color = *(unsigned long *)v2->color;
+ mga_draw_tri_rgb_iter((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
+}
+#endif /* MATROX */
+
+
+
+/*
+ * Z-less iterated triangle.
+ */
+#ifndef MATROX
+
+#define NAME tri_rgb_iter_zless
+
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define INTERP_RGB 1
+
+#define SETUP_CODE \
+ const DMesaContext dmesa = (DMesaContext)ctx; \
+ GLuint _b_ = dmesa->Buffer->height - 1; \
+ GLuint _w_ = dmesa->Buffer->width;
+
+#define RENDER_SPAN(span) \
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
+ for (i = 0; i < span.end; i++, offset++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue));\
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
+
+#include "swrast/s_tritemp.h"
+
+#else /* MATROX */
+
+static void tri_rgb_iter_zless (GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1, m2;
+ m0.win[0] = v0->win[0];
+ m0.win[1] = FLIP2(v0->win[1]);
+ m0.win[2] = v0->win[2];
+ m1.win[0] = v1->win[0];
+ m1.win[1] = FLIP2(v1->win[1]);
+ m1.win[2] = v1->win[2];
+ m2.win[0] = v2->win[0];
+ m2.win[1] = FLIP2(v2->win[1]);
+ m2.win[2] = v2->win[2];
+ *(unsigned long *)m0.color = *(unsigned long *)v0->color;
+ *(unsigned long *)m1.color = *(unsigned long *)v1->color;
+ *(unsigned long *)m2.color = *(unsigned long *)v2->color;
+ mga_draw_tri_rgb_iter_zless((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
+}
+#endif /* MATROX */
+
+
+
+/*
+ * Analyze context state to see if we can provide a fast triangle function
+ * Otherwise, return NULL.
+ */
+static swrast_tri_func dmesa_choose_tri_function (GLcontext *ctx)
+{
+ const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if ((ctx->RenderMode != GL_RENDER)
+ || (ctx->Polygon.SmoothFlag)
+ || (ctx->Polygon.StippleFlag)
+ || (ctx->Texture._EnabledUnits)
+ || (swrast->_RasterMask & MULTI_DRAW_BIT)
+ || (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)) {
+ return (swrast_tri_func)NULL;
+ }
+
+ if (swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter_zless : tri_rgb_flat_zless;
+ }
+
+ if (swrast->_RasterMask==0) { /* no depth test */
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter : tri_rgb_flat;
+ }
+
+ return (swrast_tri_func)NULL;
+}
+
+
+
+/* Override for the swrast triangle-selection function. Try to use one
+ * of our internal triangle functions, otherwise fall back to the
+ * standard swrast functions.
+ */
+static void dmesa_choose_tri (GLcontext *ctx)
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if (!(swrast->Triangle=dmesa_choose_tri_function(ctx)))
+ _swrast_choose_triangle(ctx);
+}
+
+
+
+/****************************************************************************
+ * Optimized line rendering
+ ***************************************************************************/
+
+#ifdef MATROX
+static __inline void matrox_line_clip_hack (GLcontext *ctx, int _b_, MGAvertex *m0, const SWvertex *vert0, MGAvertex *m1, const SWvertex *vert1)
+{
+ int x0 = vert0->win[0];
+ int y0 = vert0->win[1];
+ int x1 = vert1->win[0];
+ int y1 = vert1->win[1];
+ /* s_linetemp.h { */
+ GLint w = ctx->DrawBuffer->Width;
+ GLint h = ctx->DrawBuffer->Height;
+ if ((x0==w) | (x1==w)) {
+ if ((x0==w) & (x1==w))
+ return;
+ x0 -= x0==w;
+ x1 -= x1==w;
+ }
+ if ((y0==h) | (y1==h)) {
+ if ((y0==h) & (y1==h))
+ return;
+ y0 -= y0==h;
+ y1 -= y1==h;
+ }
+ /* } s_linetemp.h */
+ m0->win[0] = x0;
+ m0->win[1] = FLIP2(y0);
+ m1->win[0] = x1;
+ m1->win[1] = FLIP2(y1);
+}
+#endif
+
+/*
+ * NON-depth-buffered flat line.
+ */
+#ifndef MATROX
+
+#define NAME line_rgb_flat
+
+#define INTERP_XY 1
+#define CLIP_HACK 1
+
+#define SETUP_CODE \
+ const DMesaContext dmesa = (DMesaContext)ctx; \
+ GLuint _b_ = dmesa->Buffer->height - 1; \
+ GLuint _w_ = dmesa->Buffer->width; \
+ GLuint rgb = vl_mixrgb(vert1->color);
+
+#define PLOT(X,Y) vl_putpixel(FLIP2(Y) * _w_ + X, rgb);
+
+#include "swrast/s_linetemp.h"
+
+#else /* MATROX */
+
+static void line_rgb_flat (GLcontext *ctx,
+ const SWvertex *vert0,
+ const SWvertex *vert1)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1;
+ matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
+ *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
+ mga_draw_line_rgb_flat(&m0, &m1);
+}
+#endif /* MATROX */
+
+
+
+/*
+ * Z-less flat line.
+ */
+#ifndef MATROX
+
+#define NAME line_rgb_flat_zless
+
+#define INTERP_XY 1
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define CLIP_HACK 1
+
+#define SETUP_CODE \
+ const DMesaContext dmesa = (DMesaContext)ctx; \
+ GLuint _b_ = dmesa->Buffer->height - 1; \
+ GLuint _w_ = dmesa->Buffer->width; \
+ GLuint rgb = vl_mixrgb(vert1->color);
+
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ vl_putpixel(FLIP2(Y) * _w_ + X, rgb); \
+ }
+
+#include "swrast/s_linetemp.h"
+
+#else /* MATROX */
+
+static void line_rgb_flat_zless (GLcontext *ctx,
+ const SWvertex *vert0,
+ const SWvertex *vert1)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1;
+ matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
+ m0.win[2] = vert0->win[2];
+ m1.win[2] = vert1->win[2];
+ *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
+ mga_draw_line_rgb_flat_zless(&m0, &m1);
+}
+#endif /* MATROX */
+
+
+
+#ifndef MATROX
+#define line_rgb_iter NULL
+#define line_rgb_iter_zless NULL
+#else /* MATROX */
+/*
+ * NON-depth-buffered iterated line.
+ */
+static void line_rgb_iter (GLcontext *ctx,
+ const SWvertex *vert0,
+ const SWvertex *vert1)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1;
+ matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
+ *(unsigned long *)m0.color = *(unsigned long *)vert0->color;
+ *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
+ mga_draw_line_rgb_iter(&m0, &m1);
+}
+
+
+
+/*
+ * Z-less iterated line.
+ */
+static void line_rgb_iter_zless (GLcontext *ctx,
+ const SWvertex *vert0,
+ const SWvertex *vert1)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1;
+ matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
+ m0.win[2] = vert0->win[2];
+ m1.win[2] = vert1->win[2];
+ *(unsigned long *)m0.color = *(unsigned long *)vert0->color;
+ *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
+ mga_draw_line_rgb_iter_zless(&m0, &m1);
+}
+#endif /* MATROX */
+
+
+
+/*
+ * Analyze context state to see if we can provide a fast line function
+ * Otherwise, return NULL.
+ */
+static swrast_line_func dmesa_choose_line_function (GLcontext *ctx)
+{
+ const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if ((ctx->RenderMode != GL_RENDER)
+ || (ctx->Line.SmoothFlag)
+ || (ctx->Texture._EnabledUnits)
+ || (ctx->Line.StippleFlag)
+ || (swrast->_RasterMask & MULTI_DRAW_BIT)
+ || (ctx->Line.Width!=1.0F)) {
+ return (swrast_line_func)NULL;
+ }
+
+ if (swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter_zless : line_rgb_flat_zless;
+ }
+
+ if (swrast->_RasterMask==0) { /* no depth test */
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter : line_rgb_flat;
+ }
+
+ return (swrast_line_func)NULL;
+}
+
+
+
+/* Override for the swrast line-selection function. Try to use one
+ * of our internal line functions, otherwise fall back to the
+ * standard swrast functions.
+ */
+static void dmesa_choose_line (GLcontext *ctx)
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if (!(swrast->Line=dmesa_choose_line_function(ctx)))
+ _swrast_choose_line(ctx);
+}
+
+
+
+/****************************************************************************
+ * Miscellaneous device driver funcs
+ ***************************************************************************/
+
+static void clear_index (GLcontext *ctx, GLuint index)
+{
+ ((DMesaContext)ctx)->ClearIndex = index;
+}
+
+static void clear_color (GLcontext *ctx, const GLfloat color[4])
+{
+ GLubyte col[4];
+ CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(col[3], color[3]);
+ ((DMesaContext)ctx)->ClearColor = vl_mixrgba(col);
+}
+
+
+
+static void clear (GLcontext *ctx, GLbitfield mask, GLboolean all,
+ GLint x, GLint y, GLint width, GLint height)
+{
+ const DMesaContext c = (DMesaContext)ctx;
+ const GLuint *colorMask = (GLuint *)&ctx->Color.ColorMask;
+
+/*
+ * Clear the specified region of the buffers indicated by 'mask'
+ * using the clear color or index as specified by one of the two
+ * functions above.
+ * If all==GL_TRUE, clear whole buffer, else just clear region defined
+ * by x,y,width,height
+ */
+
+ /* we can't handle color or index masking */
+ if ((*colorMask == 0xffffffff) && (ctx->Color.IndexMask == 0xffffffff)) {
+#ifndef MATROX
+ if (mask & DD_BACK_LEFT_BIT) {
+ int color = c->visual->rgb_flag ? c->ClearColor : c->ClearIndex;
+
+ if (all) {
+ vl_clear(color);
+ } else {
+ vl_rect(x, y, width, height, color);
+ }
+
+ mask &= ~DD_BACK_LEFT_BIT;
+ }
+#else /* MATROX */
+ unsigned short z = -1;
+ int color = c->ClearColor;
+ if (mask & DD_DEPTH_BIT) {
+ z = ctx->Depth.Clear * 0xffff;
+ }
+ if (all) {
+ mga_clear(mask & DD_FRONT_LEFT_BIT,
+ mask & DD_BACK_LEFT_BIT,
+ mask & DD_DEPTH_BIT,
+ 0, 0, c->Buffer->width, c->Buffer->height,
+ color, z);
+ } else {
+ mga_clear(mask & DD_FRONT_LEFT_BIT,
+ mask & DD_BACK_LEFT_BIT,
+ mask & DD_DEPTH_BIT,
+ x, y, width, height,
+ color, z);
+ }
+ mask &= ~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT | DD_DEPTH_BIT);
+#endif /* MATROX */
+ }
+
+ if (mask) {
+ _swrast_Clear(ctx, mask, all, x, y, width, height);
+ }
+}
+
+
+
+static void set_buffer (GLcontext *ctx, GLframebuffer *colorBuffer, GLuint bufferBit)
+{
+ /*
+ * XXX todo - examine bufferBit and set read/write pointers
+ */
+}
+
+
+
+/*
+ * Return the width and height of the current buffer.
+ * If anything special has to been done when the buffer/window is
+ * resized, do it now.
+ */
+static void get_buffer_size (GLframebuffer *buffer, GLuint *width, GLuint *height)
+{
+ DMesaBuffer b = (DMesaBuffer)buffer;
+
+ *width = b->width;
+ *height = b->height;
+}
+
+
+
+static const GLubyte* get_string (GLcontext *ctx, GLenum name)
+{
+ switch (name) {
+ case GL_RENDERER:
+ return (const GLubyte *)"Mesa DJGPP"
+ #ifdef FX
+ " (FX)"
+ #endif
+ #ifdef MATROX
+ " (MGA)"
+ #endif
+ "\0port (c) Borca Daniel mar-2003";
+ default:
+ return NULL;
+ }
+}
+
+
+
+static void finish (GLcontext *ctx)
+{
+ /*
+ * XXX todo - OPTIONAL FUNCTION: implements glFinish if possible
+ */
+}
+
+
+
+static void flush (GLcontext *ctx)
+{
+ /*
+ * XXX todo - OPTIONAL FUNCTION: implements glFlush if possible
+ */
+}
+
+
+
+/****************************************************************************
+ * State
+ ***************************************************************************/
+#define DMESA_NEW_LINE (_NEW_LINE | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+#define DMESA_NEW_TRIANGLE (_NEW_POLYGON | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+/* Extend the software rasterizer with our line and triangle
+ * functions.
+ */
+static void dmesa_register_swrast_functions (GLcontext *ctx)
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ swrast->choose_line = dmesa_choose_line;
+ swrast->choose_triangle = dmesa_choose_tri;
+
+ swrast->invalidate_line |= DMESA_NEW_LINE;
+ swrast->invalidate_triangle |= DMESA_NEW_TRIANGLE;
+}
+
+
+
+/* Setup pointers and other driver state that is constant for the life
+ * of a context.
+ */
+static void dmesa_init_pointers (GLcontext *ctx)
+{
+ TNLcontext *tnl;
+ struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference(ctx);
+
+ ctx->Driver.GetString = get_string;
+ ctx->Driver.GetBufferSize = get_buffer_size;
+ ctx->Driver.Flush = flush;
+ ctx->Driver.Finish = finish;
+
+ /* Software rasterizer pixel paths:
+ */
+ ctx->Driver.Accum = _swrast_Accum;
+ ctx->Driver.Bitmap = _swrast_Bitmap;
+ ctx->Driver.Clear = clear;
+ ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
+ ctx->Driver.CopyPixels = _swrast_CopyPixels;
+ ctx->Driver.DrawPixels = _swrast_DrawPixels;
+ ctx->Driver.ReadPixels = _swrast_ReadPixels;
+ ctx->Driver.DrawBuffer = _swrast_DrawBuffer;
+
+ /* Software texture functions:
+ */
+ ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
+ ctx->Driver.TexImage1D = _mesa_store_teximage1d;
+ ctx->Driver.TexImage2D = _mesa_store_teximage2d;
+ ctx->Driver.TexImage3D = _mesa_store_teximage3d;
+ ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
+ ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d;
+ ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
+ ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
+
+ ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
+ ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
+ ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
+ ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
+ ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
+
+ ctx->Driver.CompressedTexImage1D = _mesa_store_compressed_teximage1d;
+ ctx->Driver.CompressedTexImage2D = _mesa_store_compressed_teximage2d;
+ ctx->Driver.CompressedTexImage3D = _mesa_store_compressed_teximage3d;
+ ctx->Driver.CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
+ ctx->Driver.CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
+ ctx->Driver.CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
+
+ /* Swrast hooks for imaging extensions:
+ */
+ ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
+ ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
+ ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
+ ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
+
+ /* Statechange callbacks:
+ */
+ ctx->Driver.ClearColor = clear_color;
+ ctx->Driver.ClearIndex = clear_index;
+
+ /* Initialize the TNL driver interface:
+ */
+ tnl = TNL_CONTEXT(ctx);
+ tnl->Driver.RunPipeline = _tnl_run_pipeline;
+
+ dd->SetBuffer = set_buffer;
+
+ /* Install swsetup for tnl->Driver.Render.*:
+ */
+ _swsetup_Wakeup(ctx);
+
+ /* The span functions should be in `dmesa_update_state', but I'm
+ * pretty sure they will never change during the life of the Visual
+ */
+#ifdef MATROX
+ if (((DMesaContext)ctx)->visual->zbuffer == -1) {
+ /* Depth span/pixel functions */
+ dd->WriteDepthSpan = write_depth_span;
+ dd->WriteDepthPixels = write_depth_pixels;
+ dd->ReadDepthSpan = read_depth_span;
+ dd->ReadDepthPixels = read_depth_pixels;
+ }
+#endif
+
+#ifndef MATROX
+ /* Index span/pixel functions */
+ dd->WriteCI32Span = write_index_span;
+ dd->WriteCI8Span = write_index8_span;
+ dd->WriteMonoCISpan = write_mono_index_span;
+ dd->WriteCI32Pixels = write_index_pixels;
+ dd->WriteMonoCIPixels = write_mono_index_pixels;
+ dd->ReadCI32Span = read_index_span;
+ dd->ReadCI32Pixels = read_index_pixels;
+#endif
+
+ /* RGB(A) span/pixel functions */
+ dd->WriteRGBASpan = write_rgba_span;
+ dd->WriteRGBSpan = write_rgb_span;
+ dd->WriteMonoRGBASpan = write_mono_rgba_span;
+ dd->WriteRGBAPixels = write_rgba_pixels;
+ dd->WriteMonoRGBAPixels = write_mono_rgba_pixels;
+ dd->ReadRGBASpan = read_rgba_span;
+ dd->ReadRGBAPixels = read_rgba_pixels;
+}
+
+
+
+static void dmesa_update_state (GLcontext *ctx, GLuint new_state)
+{
+ /* Propogate statechange information to swrast and swrast_setup
+ * modules. The DMesa driver has no internal GL-dependent state.
+ */
+ _swrast_InvalidateState( ctx, new_state );
+ _ac_InvalidateState( ctx, new_state );
+ _tnl_InvalidateState( ctx, new_state );
+ _swsetup_InvalidateState( ctx, new_state );
+}
+#endif /* FX */
+
+
+
+/****************************************************************************
+ * DMesa Public API Functions
+ ***************************************************************************/
+
+/*
+ * The exact arguments to this function will depend on your window system
+ */
+DMesaVisual DMesaCreateVisual (GLint width,
+ GLint height,
+ GLint colDepth,
+ GLint refresh,
+ GLboolean dbFlag,
+ GLboolean rgbFlag,
+ GLboolean alphaFlag,
+ GLint depthSize,
+ GLint stencilSize,
+ GLint accumSize)
+{
+#ifndef FX
+ DMesaVisual v;
+ GLint redBits, greenBits, blueBits, alphaBits, indexBits;
+
+#ifndef MATROX
+ if (!dbFlag) {
+ return NULL;
+ }
+#else
+ if (!rgbFlag) {
+ return NULL;
+ }
+#endif
+
+ alphaBits = 0;
+
+ if (!rgbFlag) {
+ indexBits = 8;
+ redBits = 0;
+ greenBits = 0;
+ blueBits = 0;
+ } else {
+ indexBits = 0;
+ switch (colDepth) {
+ case 8:
+ redBits = 8;
+ greenBits = 8;
+ blueBits = 8;
+ break;
+ case 15:
+ redBits = 5;
+ greenBits = 5;
+ blueBits = 5;
+ break;
+ case 16:
+ redBits = 5;
+ greenBits = 6;
+ blueBits = 5;
+ break;
+ case 32:
+ alphaBits = 8;
+ case 24:
+ redBits = 8;
+ greenBits = 8;
+ blueBits = 8;
+ break;
+ default:
+ return NULL;
+ }
+ }
+
+#ifndef MATROX
+ if ((colDepth=vl_video_init(width, height, colDepth, rgbFlag, refresh)) <= 0) {
+ return NULL;
+ }
+#else
+ if (mga_open(width, height, colDepth, dbFlag ? 2 : 1, depthSize == 16, refresh) < 0) {
+ return NULL;
+ }
+#endif
+
+ if (alphaFlag && (alphaBits==0)) {
+ alphaBits = 8;
+ }
+
+ if ((v=(DMesaVisual)CALLOC_STRUCT(dmesa_visual)) != NULL) {
+ /* Create core visual */
+ _mesa_initialize_visual((GLvisual *)v,
+ rgbFlag, /* rgb */
+ dbFlag,
+ GL_FALSE, /* stereo */
+ redBits,
+ greenBits,
+ blueBits,
+ alphaBits,
+ indexBits, /* indexBits */
+ depthSize,
+ stencilSize,
+ accumSize, /* accumRed */
+ accumSize, /* accumGreen */
+ accumSize, /* accumBlue */
+ alphaFlag?accumSize:0, /* accumAlpha */
+ 1); /* numSamples */
+
+ v->depth = colDepth;
+ v->db_flag = dbFlag;
+ v->rgb_flag = rgbFlag;
+
+ v->zbuffer = (depthSize > 0) ? 1 : 0;
+#ifdef MATROX
+ mga_get(MGA_GET_HPIXELS, &v->stride_in_pixels);
+ if (depthSize == 16) {
+ v->zbuffer = -1;
+ }
+#endif
+ }
+
+ return v;
+
+#else /* FX */
+
+ int i = 0, fx_attrib[32];
+
+ if (!rgbFlag) {
+ return NULL;
+ }
+
+ if (dbFlag) fx_attrib[i++] = FXMESA_DOUBLEBUFFER;
+ if (depthSize > 0) { fx_attrib[i++] = FXMESA_DEPTH_SIZE; fx_attrib[i++] = depthSize; }
+ if (stencilSize > 0) { fx_attrib[i++] = FXMESA_STENCIL_SIZE; fx_attrib[i++] = stencilSize; }
+ if (accumSize > 0) { fx_attrib[i++] = FXMESA_ACCUM_SIZE; fx_attrib[i++] = accumSize; }
+ if (alphaFlag) { fx_attrib[i++] = FXMESA_ALPHA_SIZE; fx_attrib[i++] = 1; }
+ fx_attrib[i] = FXMESA_NONE;
+
+ return (DMesaVisual)fxMesaCreateBestContext(-1, width, height, fx_attrib);
+#endif /* FX */
+}
+
+
+
+void DMesaDestroyVisual (DMesaVisual v)
+{
+#ifndef FX
+ _mesa_destroy_visual((GLvisual *)v);
+
+#ifndef MATROX
+ vl_video_exit();
+#else
+ mga_close(1, 1);
+#endif
+
+#else
+ fxMesaDestroyContext((fxMesaContext)v);
+#endif
+}
+
+
+
+DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
+ GLint xpos, GLint ypos,
+ GLint width, GLint height)
+{
+#ifndef FX
+ DMesaBuffer b;
+
+ if ((b=(DMesaBuffer)CALLOC_STRUCT(dmesa_buffer)) != NULL) {
+ _mesa_initialize_framebuffer((GLframebuffer *)b,
+ (GLvisual *)visual,
+ visual->zbuffer == 1,
+ ((GLvisual *)visual)->stencilBits > 0,
+ ((GLvisual *)visual)->accumRedBits > 0,
+ ((GLvisual *)visual)->alphaBits > 0);
+ b->xpos = xpos;
+ b->ypos = ypos;
+ b->width = width;
+ b->height = height;
+ }
+
+ return b;
+#else
+ return (DMesaBuffer)visual;
+#endif
+}
+
+
+
+void DMesaDestroyBuffer (DMesaBuffer b)
+{
+#ifndef FX
+#ifndef MATROX
+ free(b->the_window);
+#endif
+ _mesa_destroy_framebuffer((GLframebuffer *)b);
+#endif
+}
+
+
+
+DMesaContext DMesaCreateContext (DMesaVisual visual,
+ DMesaContext share)
+{
+#ifndef FX
+ DMesaContext c;
+ GLboolean direct = GL_FALSE;
+
+ if ((c=(DMesaContext)CALLOC_STRUCT(dmesa_context)) != NULL) {
+ _mesa_initialize_context((GLcontext *)c,
+ (GLvisual *)visual,
+ (GLcontext *)share,
+ (void *)c, direct);
+
+ _mesa_enable_sw_extensions((GLcontext *)c);
+ _mesa_enable_1_3_extensions((GLcontext *)c);
+ _mesa_enable_1_4_extensions((GLcontext *)c);
+
+ /* you probably have to do a bunch of other initializations here. */
+ c->visual = visual;
+
+ ((GLcontext *)c)->Driver.UpdateState = dmesa_update_state;
+
+ /* Initialize the software rasterizer and helper modules.
+ */
+ _swrast_CreateContext((GLcontext *)c);
+ _ac_CreateContext((GLcontext *)c);
+ _tnl_CreateContext((GLcontext *)c);
+ _swsetup_CreateContext((GLcontext *)c);
+ if (visual->rgb_flag) dmesa_register_swrast_functions((GLcontext *)c);
+ dmesa_init_pointers((GLcontext *)c);
+ }
+
+ return c;
+
+#else /* FX */
+ return (DMesaContext)visual;
+#endif /* FX */
+}
+
+
+
+void DMesaDestroyContext (DMesaContext c)
+{
+#ifndef FX
+ if (c) {
+ _swsetup_DestroyContext((GLcontext *)c);
+ _swrast_DestroyContext((GLcontext *)c);
+ _tnl_DestroyContext((GLcontext *)c);
+ _ac_DestroyContext((GLcontext *)c);
+ _mesa_destroy_context((GLcontext *)c);
+ }
+#endif
+}
+
+
+
+GLboolean DMesaMoveBuffer (GLint xpos, GLint ypos)
+{
+#if !defined(FX) && !defined(MATROX)
+ GET_CURRENT_CONTEXT(ctx);
+ DMesaBuffer b = ((DMesaContext)ctx)->Buffer;
+
+ if (vl_sync_buffer(&b->the_window, xpos, ypos, b->width, b->height) != 0) {
+ return GL_FALSE;
+ } else {
+ b->xpos = xpos;
+ b->ypos = ypos;
+ return GL_TRUE;
+ }
+
+#else
+ return GL_FALSE;
+#endif
+}
+
+
+
+GLboolean DMesaResizeBuffer (GLint width, GLint height)
+{
+#if !defined(FX) && !defined(MATROX)
+ GET_CURRENT_CONTEXT(ctx);
+ DMesaBuffer b = ((DMesaContext)ctx)->Buffer;
+
+ if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, width, height) != 0) {
+ return GL_FALSE;
+ } else {
+ b->width = width;
+ b->height = height;
+ return GL_TRUE;
+ }
+
+#else
+ return GL_FALSE;
+#endif
+}
+
+
+
+/*
+ * Make the specified context and buffer the current one.
+ */
+GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)
+{
+#ifndef FX
+ if ((c != NULL) && (b != NULL)) {
+#ifndef MATROX
+ if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, b->width, b->height) != 0) {
+ return GL_FALSE;
+ }
+#endif
+
+ c->Buffer = b;
+
+ _mesa_make_current((GLcontext *)c, (GLframebuffer *)b);
+ if (((GLcontext *)c)->Viewport.Width == 0) {
+ /* initialize viewport to window size */
+ _mesa_Viewport(0, 0, b->width, b->height);
+ }
+ } else {
+ /* Detach */
+ _mesa_make_current(NULL, NULL);
+ }
+
+#else
+ fxMesaMakeCurrent((fxMesaContext)c);
+#endif
+
+ return GL_TRUE;
+}
+
+
+
+void DMesaSwapBuffers (DMesaBuffer b)
+{
+ /* copy/swap back buffer to front if applicable */
+#ifndef FX
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_notifySwapBuffers(ctx);
+#ifndef MATROX
+ vl_flip();
+#else
+ if (((DMesaContext)ctx)->visual->db_flag) {
+ mga_swapbuffers(1);
+ }
+#endif
+#else
+ fxMesaSwapBuffers();
+#endif
+}
+
+
+
+void DMesaSetCI (int ndx, GLfloat red, GLfloat green, GLfloat blue)
+{
+#if !defined(FX) && !defined(MATROX)
+ vl_setCI(ndx, red, green, blue);
+#endif
+}
+
+
+
+DMesaContext DMesaGetCurrentContext (void)
+{
+#ifndef FX
+ GET_CURRENT_CONTEXT(ctx);
+ return (DMesaContext)ctx;
+#else
+ return (DMesaContext)fxMesaGetCurrentContext();
+#endif
+}
+
+
+
+int DMesaGetIntegerv (GLenum pname, GLint *params)
+{
+#ifndef FX
+ GET_CURRENT_CONTEXT(ctx);
+ const DMesaContext c = (DMesaContext)ctx;
+#else
+ const fxMesaContext c = fxMesaGetCurrentContext();
+#endif
+
+ if (c == NULL) {
+ return -1;
+ }
+
+ switch (pname) {
+ case DMESA_GET_SCREEN_SIZE:
+ #ifndef FX
+ #ifndef MATROX
+ vl_get(VL_GET_SCREEN_SIZE, params);
+ #else
+ mga_get(MGA_GET_SCREEN_SIZE, params);
+ #endif
+ #else
+ params[0] = c->screen_width;
+ params[1] = c->screen_height;
+ #endif
+ break;
+ case DMESA_GET_DRIVER_CAPS:
+ #ifndef FX
+ #ifndef MATROX
+ params[0] = DMESA_DRIVER_SWDB_BIT;
+ #else
+ params[0] = 0;
+ #endif
+ #else
+ params[0] = DMESA_DRIVER_LLWO_BIT;
+ #endif
+ break;
+ default:
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/src/mesa/drivers/dos/dpmi.c b/src/mesa/drivers/dos/dpmi.c
index 17c005a9e58..f9943ea60bf 100644
--- a/src/mesa/drivers/dos/dpmi.c
+++ b/src/mesa/drivers/dos/dpmi.c
@@ -1,148 +1,148 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <dpmi.h>
-
-#include "internal.h"
-
-
-
-#ifndef MAX
-#define MAX(x, y) (((x)<(y))?(y):(x))
-#endif
-
-
-
-/* _create_linear_mapping:
- * Maps a physical address range into linear memory.
- */
-int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size)
-{
- __dpmi_meminfo meminfo;
-
- if (physaddr >= 0x100000) {
- /* map into linear memory */
- meminfo.address = physaddr;
- meminfo.size = size;
- if (__dpmi_physical_address_mapping(&meminfo) != 0)
- return -1;
-
- *linear = meminfo.address;
- } else {
- /* exploit 1 -> 1 physical to linear mapping in low megabyte */
- *linear = physaddr;
- }
-
- return 0;
-}
-
-
-
-/* _remove_linear_mapping:
- * Frees the DPMI resources being used to map a linear address range.
- */
-void _remove_linear_mapping (unsigned long *linear)
-{
- __dpmi_meminfo meminfo;
-
- if (*linear) {
- if (*linear >= 0x100000) {
- meminfo.address = *linear;
- __dpmi_free_physical_address_mapping(&meminfo);
- }
-
- *linear = 0;
- }
-}
-
-
-
-/* _create_selector:
- * Allocates a selector to access a region of linear memory.
- */
-int _create_selector (int *segment, unsigned long base, int size)
-{
- /* allocate an ldt descriptor */
- if ((*segment=__dpmi_allocate_ldt_descriptors(1)) < 0) {
- *segment = 0;
- return -1;
- }
-
- /* create the linear mapping */
- if (_create_linear_mapping(&base, base, size)) {
- __dpmi_free_ldt_descriptor(*segment);
- *segment = 0;
- return -1;
- }
-
- /* set the descriptor base and limit */
- __dpmi_set_segment_base_address(*segment, base);
- __dpmi_set_segment_limit(*segment, MAX(size-1, 0xFFFF));
-
- return 0;
-}
-
-
-
-/* _remove_selector:
- * Frees a DPMI segment selector.
- */
-void _remove_selector (int *segment)
-{
- if (*segment) {
- unsigned long base;
- __dpmi_get_segment_base_address(*segment, &base);
- _remove_linear_mapping(&base);
- __dpmi_free_ldt_descriptor(*segment);
- *segment = 0;
- }
-}
-
-
-
-/* Desc: retrieve CPU MMX capability
- *
- * In : -
- * Out : FALSE if CPU cannot do MMX
- *
- * Note: -
- */
-int _can_mmx (void)
-{
-#ifdef USE_MMX_ASM
- extern int _mesa_identify_x86_cpu_features (void);
- return (_mesa_identify_x86_cpu_features() & 0x00800000);
-#else
- return 0;
-#endif
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.4 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <dpmi.h>
+
+#include "internal.h"
+
+
+
+#ifndef MAX
+#define MAX(x, y) (((x)<(y))?(y):(x))
+#endif
+
+
+
+/* _create_linear_mapping:
+ * Maps a physical address range into linear memory.
+ */
+int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size)
+{
+ __dpmi_meminfo meminfo;
+
+ if (physaddr >= 0x100000) {
+ /* map into linear memory */
+ meminfo.address = physaddr;
+ meminfo.size = size;
+ if (__dpmi_physical_address_mapping(&meminfo) != 0)
+ return -1;
+
+ *linear = meminfo.address;
+ } else {
+ /* exploit 1 -> 1 physical to linear mapping in low megabyte */
+ *linear = physaddr;
+ }
+
+ return 0;
+}
+
+
+
+/* _remove_linear_mapping:
+ * Frees the DPMI resources being used to map a linear address range.
+ */
+void _remove_linear_mapping (unsigned long *linear)
+{
+ __dpmi_meminfo meminfo;
+
+ if (*linear) {
+ if (*linear >= 0x100000) {
+ meminfo.address = *linear;
+ __dpmi_free_physical_address_mapping(&meminfo);
+ }
+
+ *linear = 0;
+ }
+}
+
+
+
+/* _create_selector:
+ * Allocates a selector to access a region of linear memory.
+ */
+int _create_selector (int *segment, unsigned long base, int size)
+{
+ /* allocate an ldt descriptor */
+ if ((*segment=__dpmi_allocate_ldt_descriptors(1)) < 0) {
+ *segment = 0;
+ return -1;
+ }
+
+ /* create the linear mapping */
+ if (_create_linear_mapping(&base, base, size)) {
+ __dpmi_free_ldt_descriptor(*segment);
+ *segment = 0;
+ return -1;
+ }
+
+ /* set the descriptor base and limit */
+ __dpmi_set_segment_base_address(*segment, base);
+ __dpmi_set_segment_limit(*segment, MAX(size-1, 0xFFFF));
+
+ return 0;
+}
+
+
+
+/* _remove_selector:
+ * Frees a DPMI segment selector.
+ */
+void _remove_selector (int *segment)
+{
+ if (*segment) {
+ unsigned long base;
+ __dpmi_get_segment_base_address(*segment, &base);
+ _remove_linear_mapping(&base);
+ __dpmi_free_ldt_descriptor(*segment);
+ *segment = 0;
+ }
+}
+
+
+
+/* Desc: retrieve CPU MMX capability
+ *
+ * In : -
+ * Out : FALSE if CPU cannot do MMX
+ *
+ * Note: -
+ */
+int _can_mmx (void)
+{
+#ifdef USE_MMX_ASM
+ extern int _mesa_x86_cpu_features;
+ return (_mesa_x86_cpu_features & 0x00800000);
+#else
+ return 0;
+#endif
+}
diff --git a/src/mesa/drivers/dos/internal.h b/src/mesa/drivers/dos/internal.h
index 6860ef35840..dfb9274ecc7 100644
--- a/src/mesa/drivers/dos/internal.h
+++ b/src/mesa/drivers/dos/internal.h
@@ -1,129 +1,129 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef INTERNAL_H_included
-#define INTERNAL_H_included
-
-#include "../mmath.h"
-
-/*
- * general purpose defines, etc.
- */
-#ifndef FALSE
-#define FALSE 0
-#define TRUE !FALSE
-#endif
-
-#define __PACKED__ __attribute__((packed))
-
-typedef unsigned char word8;
-typedef unsigned short word16;
-typedef unsigned long word32;
-
-#define _16_ *(word16 *)&
-#define _32_ *(word32 *)&
-
-
-
-/*
- * video mode structure
- */
-typedef struct vl_mode {
- int mode;
- int xres, yres;
- int scanlen;
- int bpp;
-
- int sel;
- int gran;
-} vl_mode;
-
-
-
-/*
- * video driver structure
- */
-typedef struct {
- vl_mode *(*init) (void);
- int (*entermode) (vl_mode *p, int refresh);
- void (*blit) (void);
- void (*setCI_f) (int index, float red, float green, float blue);
- void (*setCI_i) (int index, int red, int green, int blue);
- int (*get) (int pname, int *params);
- void (*restore) (void);
- void (*fini) (void);
-} vl_driver;
-
-
-
-/*
- * memory mapping
- */
-int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size);
-void _remove_linear_mapping (unsigned long *linear);
-int _create_selector (int *segment, unsigned long base, int size);
-void _remove_selector (int *segment);
-
-/*
- * system routines
- */
-int _can_mmx (void);
-
-/*
- * asm routines to deal with virtual buffering
- */
-extern void v_clear8 (int color);
-#define v_clear15 v_clear16
-extern void v_clear16 (int color);
-extern void v_clear24 (int color);
-extern void v_clear32 (int color);
-
-extern void v_clear8_mmx (int color);
-#define v_clear15_mmx v_clear16_mmx
-extern void v_clear16_mmx (int color);
-extern void v_clear24_mmx (int color);
-extern void v_clear32_mmx (int color);
-
-extern void v_rect8 (int x, int y, int width, int height, int color);
-#define v_rect15 v_rect16
-extern void v_rect16 (int x, int y, int width, int height, int color);
-extern void v_rect24 (int x, int y, int width, int height, int color);
-extern void v_rect32 (int x, int y, int width, int height, int color);
-
-extern void v_putpixel8 (unsigned int offset, int color);
-#define v_putpixel15 v_putpixel16
-extern void v_putpixel16 (unsigned int offset, int color);
-extern void v_putpixel24 (unsigned int offset, int color);
-extern void v_putpixel32 (unsigned int offset, int color);
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.4 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef INTERNAL_H_included
+#define INTERNAL_H_included
+
+#include "../main/mtypes.h"
+
+/*
+ * general purpose defines, etc.
+ */
+#ifndef FALSE
+#define FALSE 0
+#define TRUE !FALSE
+#endif
+
+#define __PACKED__ __attribute__((packed))
+
+typedef unsigned char word8;
+typedef unsigned short word16;
+typedef unsigned long word32;
+
+#define _16_ *(word16 *)&
+#define _32_ *(word32 *)&
+
+
+
+/*
+ * video mode structure
+ */
+typedef struct vl_mode {
+ int mode;
+ int xres, yres;
+ int scanlen;
+ int bpp;
+
+ int sel;
+ int gran;
+} vl_mode;
+
+
+
+/*
+ * video driver structure
+ */
+typedef struct {
+ vl_mode *(*init) (void);
+ int (*entermode) (vl_mode *p, int refresh);
+ void (*blit) (void);
+ void (*setCI_f) (int index, float red, float green, float blue);
+ void (*setCI_i) (int index, int red, int green, int blue);
+ int (*get) (int pname, int *params);
+ void (*restore) (void);
+ void (*fini) (void);
+} vl_driver;
+
+
+
+/*
+ * memory mapping
+ */
+int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size);
+void _remove_linear_mapping (unsigned long *linear);
+int _create_selector (int *segment, unsigned long base, int size);
+void _remove_selector (int *segment);
+
+/*
+ * system routines
+ */
+int _can_mmx (void);
+
+/*
+ * asm routines to deal with virtual buffering
+ */
+extern void v_clear8 (int color);
+#define v_clear15 v_clear16
+extern void v_clear16 (int color);
+extern void v_clear24 (int color);
+extern void v_clear32 (int color);
+
+extern void v_clear8_mmx (int color);
+#define v_clear15_mmx v_clear16_mmx
+extern void v_clear16_mmx (int color);
+extern void v_clear24_mmx (int color);
+extern void v_clear32_mmx (int color);
+
+extern void v_rect8 (int x, int y, int width, int height, int color);
+#define v_rect15 v_rect16
+extern void v_rect16 (int x, int y, int width, int height, int color);
+extern void v_rect24 (int x, int y, int width, int height, int color);
+extern void v_rect32 (int x, int y, int width, int height, int color);
+
+extern void v_putpixel8 (unsigned int offset, int color);
+#define v_putpixel15 v_putpixel16
+extern void v_putpixel16 (unsigned int offset, int color);
+extern void v_putpixel24 (unsigned int offset, int color);
+extern void v_putpixel32 (unsigned int offset, int color);
+
+#endif
diff --git a/src/mesa/drivers/dos/mga/m_ttemp.h b/src/mesa/drivers/dos/mga/m_ttemp.h
index 1c5fbda29af..90d9de35642 100644
--- a/src/mesa/drivers/dos/mga/m_ttemp.h
+++ b/src/mesa/drivers/dos/mga/m_ttemp.h
@@ -1,377 +1,377 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W triangle template
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-/*
- * Triangle Rasterizer Template
- *
- * This file is #include'd to generate custom triangle rasterizers.
- *
- * The following macros may be defined to indicate what auxillary information
- * must be interplated across the triangle:
- * INTERP_Z - if defined, interpolate Z values
- * INTERP_RGB - if defined, interpolate RGB values
- *
- * TAG - function name
- * CULL - enable culling for: 0=no, 1=back, -1=front
- *
- * SETUP_CODE - to be executed once per triangle (usually HW init)
- *
- * For flatshaded primitives, the provoking vertex is the final one.
- * This code was designed for the origin to be in the upper-left corner.
- *
- * Inspired by triangle rasterizer code written by Brian Paul.
- */
-
-
-
-#define TRI_SWAP(a, b) \
-do { \
- const MGAvertex *tmp = a; \
- a = b; \
- b = tmp; \
-} while (0)
-
-void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3)
-{
- int area;
- int x1, y1, x2, y2, x3, y3;
- int eMaj_dx, eMaj_dy, eBot_dx, eBot_dy, eTop_dx, eTop_dy;
-#ifdef INTERP_RGB
-#define FIFO_CNT_RGB 3
- int eMaj_dr, eBot_dr, eMaj_dg, eBot_dg, eMaj_db, eBot_db;
- int drdx, drdy, dgdx, dgdy, dbdx, dbdy;
-#else
-#define FIFO_CNT_RGB 0
-#endif
-#ifdef INTERP_Z
-#define FIFO_CNT_Z 1
- int dzdx, dzdy;
- int eMaj_dz, eBot_dz;
- int z1, z2, z3;
-#else
-#define FIFO_CNT_Z 0
-#endif
-
-#if defined(INTERP_Z) || defined(INTERP_RGB)
- double one_area;
-#ifndef INTERP_RGB
- int red = v3->color[0];
- int green = v3->color[1];
- int blue = v3->color[2];
-#endif
-#else
- unsigned long color = mga_mixrgb_full(v3->color);
-#endif
-
- int sgn = 0;
-
- /* sort along the vertical axis */
- if (v2->win[1] < v1->win[1]) {
- TRI_SWAP(v1, v2);
-#ifdef CULL
- cull = -cull;
-#endif
- }
-
- if (v3->win[1] < v1->win[1]) {
- TRI_SWAP(v1, v3);
- TRI_SWAP(v2, v3);
- } else if (v3->win[1] < v2->win[1]) {
- TRI_SWAP(v2, v3);
-#ifdef CULL
- cull = -cull;
-#endif
- }
-
- x1 = v1->win[0];
- y1 = v1->win[1];
- x2 = v2->win[0];
- y2 = v2->win[1];
- x3 = v3->win[0];
- y3 = v3->win[1];
-
- /* compute deltas for each edge */
- eMaj_dx = x3 - x1;
- eMaj_dy = y3 - y1;
- eBot_dx = x2 - x1;
- eBot_dy = y2 - y1;
- eTop_dx = x3 - x2;
- eTop_dy = y3 - y2;
-
- /* compute area */
- if ((area = eMaj_dx * eBot_dy - eBot_dx * eMaj_dy) == 0) {
- return;
- }
-#ifdef CULL
- if ((area * cull) > 0) {
- return;
- }
-#endif
-
- mga_select();
-
- /* set engine state */
-#ifdef SETUP_CODE
- SETUP_CODE
-#endif
-
- /* draw lower triangle */
-#if defined(INTERP_Z) || defined(INTERP_RGB)
- one_area = (double)(1<<15) / (double)area;
- mga_fifo(1);
-#else
- mga_fifo(2);
- mga_outl(M_FCOL, color);
-#endif
- mga_outl(M_YDST, y1);
-
-#ifdef INTERP_Z
- z1 = v1->win[2];
- z2 = v2->win[2];
- z3 = v3->win[2];
-
- /* compute d?/dx and d?/dy derivatives */
- eMaj_dz = z3 - z1;
- eBot_dz = z2 - z1;
- dzdx = (eMaj_dz * eBot_dy - eMaj_dy * eBot_dz) * one_area;
- dzdy = (eMaj_dx * eBot_dz - eMaj_dz * eBot_dx) * one_area;
-
-#ifndef INTERP_RGB
- mga_fifo(11);
- mga_outl(M_DR2, dzdx);
- mga_outl(M_DR3, dzdy);
- mga_outl(M_DR4, red<<15);
- mga_outl(M_DR6, 0);
- mga_outl(M_DR7, 0);
- mga_outl(M_DR8, green<<15);
- mga_outl(M_DR10, 0);
- mga_outl(M_DR11, 0);
- mga_outl(M_DR12, blue<<15);
- mga_outl(M_DR14, 0);
- mga_outl(M_DR15, 0);
-#else
- mga_fifo(2);
- mga_outl(M_DR2, dzdx);
- mga_outl(M_DR3, dzdy);
-#endif
-#endif
-
-#ifdef INTERP_RGB
- /* compute color deltas */
- eMaj_dr = v3->color[0] - v1->color[0];
- eBot_dr = v2->color[0] - v1->color[0];
- eMaj_dg = v3->color[1] - v1->color[1];
- eBot_dg = v2->color[1] - v1->color[1];
- eMaj_db = v3->color[2] - v1->color[2];
- eBot_db = v2->color[2] - v1->color[2];
-
- /* compute color increments */
- drdx = (eMaj_dr * eBot_dy - eMaj_dy * eBot_dr) * one_area;
- drdy = (eMaj_dx * eBot_dr - eMaj_dr * eBot_dx) * one_area;
- dgdx = (eMaj_dg * eBot_dy - eMaj_dy * eBot_dg) * one_area;
- dgdy = (eMaj_dx * eBot_dg - eMaj_dg * eBot_dx) * one_area;
- dbdx = (eMaj_db * eBot_dy - eMaj_dy * eBot_db) * one_area;
- dbdy = (eMaj_dx * eBot_db - eMaj_db * eBot_dx) * one_area;
-
- mga_fifo(6);
- mga_outl(M_DR6, drdx);
- mga_outl(M_DR7, drdy);
- mga_outl(M_DR10, dgdx);
- mga_outl(M_DR11, dgdy);
- mga_outl(M_DR14, dbdx);
- mga_outl(M_DR15, dbdy);
-#endif
-
- if (area > 0) { /* major edge on the right */
- if (eBot_dy) { /* have lower triangle */
- mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
-
- mga_outl(M_AR0, eBot_dy);
- if (x2 < x1) {
- mga_outl(M_AR1, eBot_dx + eBot_dy - 1);
- mga_outl(M_AR2, eBot_dx);
- sgn |= M_SDXL;
- } else {
- mga_outl(M_AR1, -eBot_dx);
- mga_outl(M_AR2, -eBot_dx);
- }
-
- mga_outl(M_AR6, eMaj_dy);
- if (x3 < x1) {
- mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
- mga_outl(M_AR5, eMaj_dx);
- sgn |= M_SDXR;
- } else {
- mga_outl(M_AR4, -eMaj_dx);
- mga_outl(M_AR5, -eMaj_dx);
- }
-
- mga_outl(M_FXBNDRY, (x1<<16) | x1);
-#ifdef INTERP_Z
- mga_outl(M_DR0, z1<<15);
-#endif
-#ifdef INTERP_RGB
- mga_outl(M_DR4, v1->color[0]<<15);
- mga_outl(M_DR8, v1->color[1]<<15);
- mga_outl(M_DR12, v1->color[2]<<15);
-#endif
- mga_outl(M_SGN, sgn);
- mga_outl(M_LEN | M_EXEC, eBot_dy);
- } else { /* no lower triangle */
- mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
-
- mga_outl(M_AR6, eMaj_dy);
- if (x3 < x1) {
- mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
- mga_outl(M_AR5, eMaj_dx);
- sgn |= M_SDXR;
- } else {
- mga_outl(M_AR4, -eMaj_dx);
- mga_outl(M_AR5, -eMaj_dx);
- }
-
- mga_outl(M_FXBNDRY, (x1<<16) | x2);
-#ifdef INTERP_Z
- mga_outl(M_DR0, z2<<15);
-#endif
-#ifdef INTERP_RGB
- mga_outl(M_DR4, v2->color[0]<<15);
- mga_outl(M_DR8, v2->color[1]<<15);
- mga_outl(M_DR12, v2->color[2]<<15);
-#endif
- }
-
- /* draw upper triangle */
- if (eTop_dy) {
- mga_fifo(5);
- mga_outl(M_AR0, eTop_dy);
- if (x3 < x2) {
- mga_outl(M_AR1, eTop_dx + eTop_dy - 1);
- mga_outl(M_AR2, eTop_dx);
- sgn |= M_SDXL;
- } else {
- mga_outl(M_AR1, -eTop_dx);
- mga_outl(M_AR2, -eTop_dx);
- sgn &= ~M_SDXL;
- }
- mga_outl(M_SGN, sgn);
- mga_outl(M_LEN | M_EXEC, eTop_dy);
- }
- } else { /* major edge on the left */
- if (eBot_dy) { /* have lower triangle */
- mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
-
- mga_outl(M_AR0, eMaj_dy);
- if (x3 < x1) {
- mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
- mga_outl(M_AR2, eMaj_dx);
- sgn |= M_SDXL;
- } else {
- mga_outl(M_AR1, -eMaj_dx);
- mga_outl(M_AR2, -eMaj_dx);
- }
-
- mga_outl(M_AR6, eBot_dy);
- if (x2 < x1) {
- mga_outl(M_AR4, eBot_dx + eBot_dy - 1);
- mga_outl(M_AR5, eBot_dx);
- sgn |= M_SDXR;
- } else {
- mga_outl(M_AR4, -eBot_dx);
- mga_outl(M_AR5, -eBot_dx);
- }
-
- mga_outl(M_FXBNDRY, (x1<<16) | x1);
-#ifdef INTERP_Z
- mga_outl(M_DR0, z1<<15);
-#endif
-#ifdef INTERP_RGB
- mga_outl(M_DR4, v1->color[0]<<15);
- mga_outl(M_DR8, v1->color[1]<<15);
- mga_outl(M_DR12, v1->color[2]<<15);
-#endif
- mga_outl(M_SGN, sgn);
- mga_outl(M_LEN | M_EXEC, eBot_dy);
- } else { /* no lower triangle */
- mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
-
- mga_outl(M_AR0, eMaj_dy);
- if (x3 < x1) {
- mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
- mga_outl(M_AR2, eMaj_dx);
- sgn |= M_SDXL;
- } else {
- mga_outl(M_AR1, -eMaj_dx);
- mga_outl(M_AR2, -eMaj_dx);
- }
-
- mga_outl(M_FXBNDRY, (x2<<16) | x1);
-#ifdef INTERP_Z
- mga_outl(M_DR0, z1<<15);
-#endif
-#ifdef INTERP_RGB
- mga_outl(M_DR4, v1->color[0]<<15);
- mga_outl(M_DR8, v1->color[1]<<15);
- mga_outl(M_DR12, v1->color[2]<<15);
-#endif
- }
-
- /* draw upper triangle */
- if (eTop_dy) {
- mga_fifo(5);
- mga_outl(M_AR6, eTop_dy);
- if (x3 < x2) {
- mga_outl(M_AR4, eTop_dx + eTop_dy - 1);
- mga_outl(M_AR5, eTop_dx);
- sgn |= M_SDXR;
- } else {
- mga_outl(M_AR4, -eTop_dx);
- mga_outl(M_AR5, -eTop_dx);
- sgn &= ~M_SDXR;
- }
- mga_outl(M_SGN, sgn);
- mga_outl(M_LEN | M_EXEC, eTop_dy);
- }
- }
-}
-
-#undef FIFO_CNT_RGB
-#undef FIFO_CNT_Z
-
-#undef TRI_SWAP
-
-#undef SETUP_CODE
-#undef INTERP_RGB
-#undef INTERP_Z
-#undef CULL
-#undef TAG
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W triangle template
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+/*
+ * Triangle Rasterizer Template
+ *
+ * This file is #include'd to generate custom triangle rasterizers.
+ *
+ * The following macros may be defined to indicate what auxillary information
+ * must be interplated across the triangle:
+ * INTERP_Z - if defined, interpolate Z values
+ * INTERP_RGB - if defined, interpolate RGB values
+ *
+ * TAG - function name
+ * CULL - enable culling for: 0=no, 1=back, -1=front
+ *
+ * SETUP_CODE - to be executed once per triangle (usually HW init)
+ *
+ * For flatshaded primitives, the provoking vertex is the final one.
+ * This code was designed for the origin to be in the upper-left corner.
+ *
+ * Inspired by triangle rasterizer code written by Brian Paul.
+ */
+
+
+
+#define TRI_SWAP(a, b) \
+do { \
+ const MGAvertex *tmp = a; \
+ a = b; \
+ b = tmp; \
+} while (0)
+
+void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3)
+{
+ int area;
+ int x1, y1, x2, y2, x3, y3;
+ int eMaj_dx, eMaj_dy, eBot_dx, eBot_dy, eTop_dx, eTop_dy;
+#ifdef INTERP_RGB
+#define FIFO_CNT_RGB 3
+ int eMaj_dr, eBot_dr, eMaj_dg, eBot_dg, eMaj_db, eBot_db;
+ int drdx, drdy, dgdx, dgdy, dbdx, dbdy;
+#else
+#define FIFO_CNT_RGB 0
+#endif
+#ifdef INTERP_Z
+#define FIFO_CNT_Z 1
+ int dzdx, dzdy;
+ int eMaj_dz, eBot_dz;
+ int z1, z2, z3;
+#else
+#define FIFO_CNT_Z 0
+#endif
+
+#if defined(INTERP_Z) || defined(INTERP_RGB)
+ double one_area;
+#ifndef INTERP_RGB
+ int red = v3->color[0];
+ int green = v3->color[1];
+ int blue = v3->color[2];
+#endif
+#else
+ unsigned long color = mga_mixrgb_full(v3->color);
+#endif
+
+ int sgn = 0;
+
+ /* sort along the vertical axis */
+ if (v2->win[1] < v1->win[1]) {
+ TRI_SWAP(v1, v2);
+#ifdef CULL
+ cull = -cull;
+#endif
+ }
+
+ if (v3->win[1] < v1->win[1]) {
+ TRI_SWAP(v1, v3);
+ TRI_SWAP(v2, v3);
+ } else if (v3->win[1] < v2->win[1]) {
+ TRI_SWAP(v2, v3);
+#ifdef CULL
+ cull = -cull;
+#endif
+ }
+
+ x1 = v1->win[0];
+ y1 = v1->win[1];
+ x2 = v2->win[0];
+ y2 = v2->win[1];
+ x3 = v3->win[0];
+ y3 = v3->win[1];
+
+ /* compute deltas for each edge */
+ eMaj_dx = x3 - x1;
+ eMaj_dy = y3 - y1;
+ eBot_dx = x2 - x1;
+ eBot_dy = y2 - y1;
+ eTop_dx = x3 - x2;
+ eTop_dy = y3 - y2;
+
+ /* compute area */
+ if ((area = eMaj_dx * eBot_dy - eBot_dx * eMaj_dy) == 0) {
+ return;
+ }
+#ifdef CULL
+ if ((area * cull) > 0) {
+ return;
+ }
+#endif
+
+ mga_select();
+
+ /* set engine state */
+#ifdef SETUP_CODE
+ SETUP_CODE
+#endif
+
+ /* draw lower triangle */
+#if defined(INTERP_Z) || defined(INTERP_RGB)
+ one_area = (double)(1<<15) / (double)area;
+ mga_fifo(1);
+#else
+ mga_fifo(2);
+ mga_outl(M_FCOL, color);
+#endif
+ mga_outl(M_YDST, y1);
+
+#ifdef INTERP_Z
+ z1 = v1->win[2];
+ z2 = v2->win[2];
+ z3 = v3->win[2];
+
+ /* compute d?/dx and d?/dy derivatives */
+ eMaj_dz = z3 - z1;
+ eBot_dz = z2 - z1;
+ dzdx = (eMaj_dz * eBot_dy - eMaj_dy * eBot_dz) * one_area;
+ dzdy = (eMaj_dx * eBot_dz - eMaj_dz * eBot_dx) * one_area;
+
+#ifndef INTERP_RGB
+ mga_fifo(11);
+ mga_outl(M_DR2, dzdx);
+ mga_outl(M_DR3, dzdy);
+ mga_outl(M_DR4, red<<15);
+ mga_outl(M_DR6, 0);
+ mga_outl(M_DR7, 0);
+ mga_outl(M_DR8, green<<15);
+ mga_outl(M_DR10, 0);
+ mga_outl(M_DR11, 0);
+ mga_outl(M_DR12, blue<<15);
+ mga_outl(M_DR14, 0);
+ mga_outl(M_DR15, 0);
+#else
+ mga_fifo(2);
+ mga_outl(M_DR2, dzdx);
+ mga_outl(M_DR3, dzdy);
+#endif
+#endif
+
+#ifdef INTERP_RGB
+ /* compute color deltas */
+ eMaj_dr = v3->color[0] - v1->color[0];
+ eBot_dr = v2->color[0] - v1->color[0];
+ eMaj_dg = v3->color[1] - v1->color[1];
+ eBot_dg = v2->color[1] - v1->color[1];
+ eMaj_db = v3->color[2] - v1->color[2];
+ eBot_db = v2->color[2] - v1->color[2];
+
+ /* compute color increments */
+ drdx = (eMaj_dr * eBot_dy - eMaj_dy * eBot_dr) * one_area;
+ drdy = (eMaj_dx * eBot_dr - eMaj_dr * eBot_dx) * one_area;
+ dgdx = (eMaj_dg * eBot_dy - eMaj_dy * eBot_dg) * one_area;
+ dgdy = (eMaj_dx * eBot_dg - eMaj_dg * eBot_dx) * one_area;
+ dbdx = (eMaj_db * eBot_dy - eMaj_dy * eBot_db) * one_area;
+ dbdy = (eMaj_dx * eBot_db - eMaj_db * eBot_dx) * one_area;
+
+ mga_fifo(6);
+ mga_outl(M_DR6, drdx);
+ mga_outl(M_DR7, drdy);
+ mga_outl(M_DR10, dgdx);
+ mga_outl(M_DR11, dgdy);
+ mga_outl(M_DR14, dbdx);
+ mga_outl(M_DR15, dbdy);
+#endif
+
+ if (area > 0) { /* major edge on the right */
+ if (eBot_dy) { /* have lower triangle */
+ mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eBot_dy);
+ if (x2 < x1) {
+ mga_outl(M_AR1, eBot_dx + eBot_dy - 1);
+ mga_outl(M_AR2, eBot_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eBot_dx);
+ mga_outl(M_AR2, -eBot_dx);
+ }
+
+ mga_outl(M_AR6, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR5, eMaj_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eMaj_dx);
+ mga_outl(M_AR5, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eBot_dy);
+ } else { /* no lower triangle */
+ mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR6, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR5, eMaj_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eMaj_dx);
+ mga_outl(M_AR5, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x2);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z2<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v2->color[0]<<15);
+ mga_outl(M_DR8, v2->color[1]<<15);
+ mga_outl(M_DR12, v2->color[2]<<15);
+#endif
+ }
+
+ /* draw upper triangle */
+ if (eTop_dy) {
+ mga_fifo(5);
+ mga_outl(M_AR0, eTop_dy);
+ if (x3 < x2) {
+ mga_outl(M_AR1, eTop_dx + eTop_dy - 1);
+ mga_outl(M_AR2, eTop_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eTop_dx);
+ mga_outl(M_AR2, -eTop_dx);
+ sgn &= ~M_SDXL;
+ }
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eTop_dy);
+ }
+ } else { /* major edge on the left */
+ if (eBot_dy) { /* have lower triangle */
+ mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR2, eMaj_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eMaj_dx);
+ mga_outl(M_AR2, -eMaj_dx);
+ }
+
+ mga_outl(M_AR6, eBot_dy);
+ if (x2 < x1) {
+ mga_outl(M_AR4, eBot_dx + eBot_dy - 1);
+ mga_outl(M_AR5, eBot_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eBot_dx);
+ mga_outl(M_AR5, -eBot_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eBot_dy);
+ } else { /* no lower triangle */
+ mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR2, eMaj_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eMaj_dx);
+ mga_outl(M_AR2, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x2<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ }
+
+ /* draw upper triangle */
+ if (eTop_dy) {
+ mga_fifo(5);
+ mga_outl(M_AR6, eTop_dy);
+ if (x3 < x2) {
+ mga_outl(M_AR4, eTop_dx + eTop_dy - 1);
+ mga_outl(M_AR5, eTop_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eTop_dx);
+ mga_outl(M_AR5, -eTop_dx);
+ sgn &= ~M_SDXR;
+ }
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eTop_dy);
+ }
+ }
+}
+
+#undef FIFO_CNT_RGB
+#undef FIFO_CNT_Z
+
+#undef TRI_SWAP
+
+#undef SETUP_CODE
+#undef INTERP_RGB
+#undef INTERP_Z
+#undef CULL
+#undef TAG
diff --git a/src/mesa/drivers/dos/mga/m_ttemp2.h b/src/mesa/drivers/dos/mga/m_ttemp2.h
index 2933f2b1a95..13ca87d348a 100644
--- a/src/mesa/drivers/dos/mga/m_ttemp2.h
+++ b/src/mesa/drivers/dos/mga/m_ttemp2.h
@@ -1,375 +1,375 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W triangle template
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-/*
- * Triangle Rasterizer Template
- *
- * This file is #include'd to generate custom triangle rasterizers.
- *
- * The following macros may be defined to indicate what auxillary information
- * must be interplated across the triangle:
- * INTERP_Z - if defined, interpolate Z values
- * INTERP_RGB - if defined, interpolate RGB values
- *
- * TAG - function name
- * CULL - enable culling for: 0=no, 1=back, -1=front
- *
- * SETUP_CODE - to be executed once per triangle (usually HW init)
- *
- * For flatshaded primitives, the provoking vertex is the final one.
- * This code was designed for the origin to be in the upper-left corner.
- *
- * Inspired by triangle rasterizer code written by Brian Paul.
- */
-
-
-
-#define TRI_SWAP(a, b) \
-do { \
- const MGAvertex *tmp = a; \
- a = b; \
- b = tmp; \
-} while (0)
-
-void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3)
-{
- int area;
- int x1, y1, x2, y2, x3, y3;
- int eMaj_dx, eMaj_dy, eBot_dx, eBot_dy, eTop_dx, eTop_dy;
-#ifdef INTERP_RGB
-#define FIFO_CNT_RGB 3
- int eMaj_dr, eBot_dr, eMaj_dg, eBot_dg, eMaj_db, eBot_db;
- int drdx, drdy, dgdx, dgdy, dbdx, dbdy;
-#else
-#define FIFO_CNT_RGB 0
-#endif
-#ifdef INTERP_Z
-#define FIFO_CNT_Z 1
- int dzdx, dzdy;
- int eMaj_dz, eBot_dz;
- int z1, z2, z3;
-#else
-#define FIFO_CNT_Z 0
-#endif
-
-#if defined(INTERP_Z) || defined(INTERP_RGB)
-#ifndef INTERP_RGB
- int red = v3->color[0];
- int green = v3->color[1];
- int blue = v3->color[2];
-#endif
-#else
- unsigned long color = mga_mixrgb_full(v3->color);
-#endif
-
- int sgn = 0;
-
- /* sort along the vertical axis */
- if (v2->win[1] < v1->win[1]) {
- TRI_SWAP(v1, v2);
-#ifdef CULL
- cull = -cull;
-#endif
- }
-
- if (v3->win[1] < v1->win[1]) {
- TRI_SWAP(v1, v3);
- TRI_SWAP(v2, v3);
- } else if (v3->win[1] < v2->win[1]) {
- TRI_SWAP(v2, v3);
-#ifdef CULL
- cull = -cull;
-#endif
- }
-
- x1 = v1->win[0];
- y1 = v1->win[1];
- x2 = v2->win[0];
- y2 = v2->win[1];
- x3 = v3->win[0];
- y3 = v3->win[1];
-
- /* compute deltas for each edge */
- eMaj_dx = x3 - x1;
- eMaj_dy = y3 - y1;
- eBot_dx = x2 - x1;
- eBot_dy = y2 - y1;
- eTop_dx = x3 - x2;
- eTop_dy = y3 - y2;
-
- /* compute area */
- if ((area = eMaj_dx * eBot_dy - eBot_dx * eMaj_dy) == 0) {
- return;
- }
-#ifdef CULL
- if ((area * cull) > 0) {
- return;
- }
-#endif
-
- mga_select();
-
- /* set engine state */
-#ifdef SETUP_CODE
- SETUP_CODE
-#endif
-
- /* draw lower triangle */
-#if defined(INTERP_Z) || defined(INTERP_RGB)
- mga_fifo(1);
-#else
- mga_fifo(2);
- mga_outl(M_FCOL, color);
-#endif
- mga_outl(M_YDST, y1);
-
-#ifdef INTERP_Z
- z1 = v1->win[2];
- z2 = v2->win[2];
- z3 = v3->win[2];
-
- /* compute d?/dx and d?/dy derivatives */
- eMaj_dz = z3 - z1;
- eBot_dz = z2 - z1;
- dzdx = ((long long)(eMaj_dz * eBot_dy - eMaj_dy * eBot_dz)<<15) / area;
- dzdy = ((long long)(eMaj_dx * eBot_dz - eMaj_dz * eBot_dx)<<15) / area;
-
-#ifndef INTERP_RGB
- mga_fifo(11);
- mga_outl(M_DR2, dzdx);
- mga_outl(M_DR3, dzdy);
- mga_outl(M_DR4, red<<15);
- mga_outl(M_DR6, 0);
- mga_outl(M_DR7, 0);
- mga_outl(M_DR8, green<<15);
- mga_outl(M_DR10, 0);
- mga_outl(M_DR11, 0);
- mga_outl(M_DR12, blue<<15);
- mga_outl(M_DR14, 0);
- mga_outl(M_DR15, 0);
-#else
- mga_fifo(2);
- mga_outl(M_DR2, dzdx);
- mga_outl(M_DR3, dzdy);
-#endif
-#endif
-
-#ifdef INTERP_RGB
- /* compute color deltas */
- eMaj_dr = v3->color[0] - v1->color[0];
- eBot_dr = v2->color[0] - v1->color[0];
- eMaj_dg = v3->color[1] - v1->color[1];
- eBot_dg = v2->color[1] - v1->color[1];
- eMaj_db = v3->color[2] - v1->color[2];
- eBot_db = v2->color[2] - v1->color[2];
-
- /* compute color increments */
- drdx = ((long long)(eMaj_dr * eBot_dy - eMaj_dy * eBot_dr)<<15) / area;
- drdy = ((long long)(eMaj_dx * eBot_dr - eMaj_dr * eBot_dx)<<15) / area;
- dgdx = ((long long)(eMaj_dg * eBot_dy - eMaj_dy * eBot_dg)<<15) / area;
- dgdy = ((long long)(eMaj_dx * eBot_dg - eMaj_dg * eBot_dx)<<15) / area;
- dbdx = ((long long)(eMaj_db * eBot_dy - eMaj_dy * eBot_db)<<15) / area;
- dbdy = ((long long)(eMaj_dx * eBot_db - eMaj_db * eBot_dx)<<15) / area;
-
- mga_fifo(6);
- mga_outl(M_DR6, drdx);
- mga_outl(M_DR7, drdy);
- mga_outl(M_DR10, dgdx);
- mga_outl(M_DR11, dgdy);
- mga_outl(M_DR14, dbdx);
- mga_outl(M_DR15, dbdy);
-#endif
-
- if (area > 0) { /* major edge on the right */
- if (eBot_dy) { /* have lower triangle */
- mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
-
- mga_outl(M_AR0, eBot_dy);
- if (x2 < x1) {
- mga_outl(M_AR1, eBot_dx + eBot_dy - 1);
- mga_outl(M_AR2, eBot_dx);
- sgn |= M_SDXL;
- } else {
- mga_outl(M_AR1, -eBot_dx);
- mga_outl(M_AR2, -eBot_dx);
- }
-
- mga_outl(M_AR6, eMaj_dy);
- if (x3 < x1) {
- mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
- mga_outl(M_AR5, eMaj_dx);
- sgn |= M_SDXR;
- } else {
- mga_outl(M_AR4, -eMaj_dx);
- mga_outl(M_AR5, -eMaj_dx);
- }
-
- mga_outl(M_FXBNDRY, (x1<<16) | x1);
-#ifdef INTERP_Z
- mga_outl(M_DR0, z1<<15);
-#endif
-#ifdef INTERP_RGB
- mga_outl(M_DR4, v1->color[0]<<15);
- mga_outl(M_DR8, v1->color[1]<<15);
- mga_outl(M_DR12, v1->color[2]<<15);
-#endif
- mga_outl(M_SGN, sgn);
- mga_outl(M_LEN | M_EXEC, eBot_dy);
- } else { /* no lower triangle */
- mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
-
- mga_outl(M_AR6, eMaj_dy);
- if (x3 < x1) {
- mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
- mga_outl(M_AR5, eMaj_dx);
- sgn |= M_SDXR;
- } else {
- mga_outl(M_AR4, -eMaj_dx);
- mga_outl(M_AR5, -eMaj_dx);
- }
-
- mga_outl(M_FXBNDRY, (x1<<16) | x2);
-#ifdef INTERP_Z
- mga_outl(M_DR0, z2<<15);
-#endif
-#ifdef INTERP_RGB
- mga_outl(M_DR4, v2->color[0]<<15);
- mga_outl(M_DR8, v2->color[1]<<15);
- mga_outl(M_DR12, v2->color[2]<<15);
-#endif
- }
-
- /* draw upper triangle */
- if (eTop_dy) {
- mga_fifo(5);
- mga_outl(M_AR0, eTop_dy);
- if (x3 < x2) {
- mga_outl(M_AR1, eTop_dx + eTop_dy - 1);
- mga_outl(M_AR2, eTop_dx);
- sgn |= M_SDXL;
- } else {
- mga_outl(M_AR1, -eTop_dx);
- mga_outl(M_AR2, -eTop_dx);
- sgn &= ~M_SDXL;
- }
- mga_outl(M_SGN, sgn);
- mga_outl(M_LEN | M_EXEC, eTop_dy);
- }
- } else { /* major edge on the left */
- if (eBot_dy) { /* have lower triangle */
- mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
-
- mga_outl(M_AR0, eMaj_dy);
- if (x3 < x1) {
- mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
- mga_outl(M_AR2, eMaj_dx);
- sgn |= M_SDXL;
- } else {
- mga_outl(M_AR1, -eMaj_dx);
- mga_outl(M_AR2, -eMaj_dx);
- }
-
- mga_outl(M_AR6, eBot_dy);
- if (x2 < x1) {
- mga_outl(M_AR4, eBot_dx + eBot_dy - 1);
- mga_outl(M_AR5, eBot_dx);
- sgn |= M_SDXR;
- } else {
- mga_outl(M_AR4, -eBot_dx);
- mga_outl(M_AR5, -eBot_dx);
- }
-
- mga_outl(M_FXBNDRY, (x1<<16) | x1);
-#ifdef INTERP_Z
- mga_outl(M_DR0, z1<<15);
-#endif
-#ifdef INTERP_RGB
- mga_outl(M_DR4, v1->color[0]<<15);
- mga_outl(M_DR8, v1->color[1]<<15);
- mga_outl(M_DR12, v1->color[2]<<15);
-#endif
- mga_outl(M_SGN, sgn);
- mga_outl(M_LEN | M_EXEC, eBot_dy);
- } else { /* no lower triangle */
- mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
-
- mga_outl(M_AR0, eMaj_dy);
- if (x3 < x1) {
- mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
- mga_outl(M_AR2, eMaj_dx);
- sgn |= M_SDXL;
- } else {
- mga_outl(M_AR1, -eMaj_dx);
- mga_outl(M_AR2, -eMaj_dx);
- }
-
- mga_outl(M_FXBNDRY, (x2<<16) | x1);
-#ifdef INTERP_Z
- mga_outl(M_DR0, z1<<15);
-#endif
-#ifdef INTERP_RGB
- mga_outl(M_DR4, v1->color[0]<<15);
- mga_outl(M_DR8, v1->color[1]<<15);
- mga_outl(M_DR12, v1->color[2]<<15);
-#endif
- }
-
- /* draw upper triangle */
- if (eTop_dy) {
- mga_fifo(5);
- mga_outl(M_AR6, eTop_dy);
- if (x3 < x2) {
- mga_outl(M_AR4, eTop_dx + eTop_dy - 1);
- mga_outl(M_AR5, eTop_dx);
- sgn |= M_SDXR;
- } else {
- mga_outl(M_AR4, -eTop_dx);
- mga_outl(M_AR5, -eTop_dx);
- sgn &= ~M_SDXR;
- }
- mga_outl(M_SGN, sgn);
- mga_outl(M_LEN | M_EXEC, eTop_dy);
- }
- }
-}
-
-#undef FIFO_CNT_RGB
-#undef FIFO_CNT_Z
-
-#undef TRI_SWAP
-
-#undef SETUP_CODE
-#undef INTERP_RGB
-#undef INTERP_Z
-#undef CULL
-#undef TAG
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W triangle template
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+/*
+ * Triangle Rasterizer Template
+ *
+ * This file is #include'd to generate custom triangle rasterizers.
+ *
+ * The following macros may be defined to indicate what auxillary information
+ * must be interplated across the triangle:
+ * INTERP_Z - if defined, interpolate Z values
+ * INTERP_RGB - if defined, interpolate RGB values
+ *
+ * TAG - function name
+ * CULL - enable culling for: 0=no, 1=back, -1=front
+ *
+ * SETUP_CODE - to be executed once per triangle (usually HW init)
+ *
+ * For flatshaded primitives, the provoking vertex is the final one.
+ * This code was designed for the origin to be in the upper-left corner.
+ *
+ * Inspired by triangle rasterizer code written by Brian Paul.
+ */
+
+
+
+#define TRI_SWAP(a, b) \
+do { \
+ const MGAvertex *tmp = a; \
+ a = b; \
+ b = tmp; \
+} while (0)
+
+void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3)
+{
+ int area;
+ int x1, y1, x2, y2, x3, y3;
+ int eMaj_dx, eMaj_dy, eBot_dx, eBot_dy, eTop_dx, eTop_dy;
+#ifdef INTERP_RGB
+#define FIFO_CNT_RGB 3
+ int eMaj_dr, eBot_dr, eMaj_dg, eBot_dg, eMaj_db, eBot_db;
+ int drdx, drdy, dgdx, dgdy, dbdx, dbdy;
+#else
+#define FIFO_CNT_RGB 0
+#endif
+#ifdef INTERP_Z
+#define FIFO_CNT_Z 1
+ int dzdx, dzdy;
+ int eMaj_dz, eBot_dz;
+ int z1, z2, z3;
+#else
+#define FIFO_CNT_Z 0
+#endif
+
+#if defined(INTERP_Z) || defined(INTERP_RGB)
+#ifndef INTERP_RGB
+ int red = v3->color[0];
+ int green = v3->color[1];
+ int blue = v3->color[2];
+#endif
+#else
+ unsigned long color = mga_mixrgb_full(v3->color);
+#endif
+
+ int sgn = 0;
+
+ /* sort along the vertical axis */
+ if (v2->win[1] < v1->win[1]) {
+ TRI_SWAP(v1, v2);
+#ifdef CULL
+ cull = -cull;
+#endif
+ }
+
+ if (v3->win[1] < v1->win[1]) {
+ TRI_SWAP(v1, v3);
+ TRI_SWAP(v2, v3);
+ } else if (v3->win[1] < v2->win[1]) {
+ TRI_SWAP(v2, v3);
+#ifdef CULL
+ cull = -cull;
+#endif
+ }
+
+ x1 = v1->win[0];
+ y1 = v1->win[1];
+ x2 = v2->win[0];
+ y2 = v2->win[1];
+ x3 = v3->win[0];
+ y3 = v3->win[1];
+
+ /* compute deltas for each edge */
+ eMaj_dx = x3 - x1;
+ eMaj_dy = y3 - y1;
+ eBot_dx = x2 - x1;
+ eBot_dy = y2 - y1;
+ eTop_dx = x3 - x2;
+ eTop_dy = y3 - y2;
+
+ /* compute area */
+ if ((area = eMaj_dx * eBot_dy - eBot_dx * eMaj_dy) == 0) {
+ return;
+ }
+#ifdef CULL
+ if ((area * cull) > 0) {
+ return;
+ }
+#endif
+
+ mga_select();
+
+ /* set engine state */
+#ifdef SETUP_CODE
+ SETUP_CODE
+#endif
+
+ /* draw lower triangle */
+#if defined(INTERP_Z) || defined(INTERP_RGB)
+ mga_fifo(1);
+#else
+ mga_fifo(2);
+ mga_outl(M_FCOL, color);
+#endif
+ mga_outl(M_YDST, y1);
+
+#ifdef INTERP_Z
+ z1 = v1->win[2];
+ z2 = v2->win[2];
+ z3 = v3->win[2];
+
+ /* compute d?/dx and d?/dy derivatives */
+ eMaj_dz = z3 - z1;
+ eBot_dz = z2 - z1;
+ dzdx = ((long long)(eMaj_dz * eBot_dy - eMaj_dy * eBot_dz)<<15) / area;
+ dzdy = ((long long)(eMaj_dx * eBot_dz - eMaj_dz * eBot_dx)<<15) / area;
+
+#ifndef INTERP_RGB
+ mga_fifo(11);
+ mga_outl(M_DR2, dzdx);
+ mga_outl(M_DR3, dzdy);
+ mga_outl(M_DR4, red<<15);
+ mga_outl(M_DR6, 0);
+ mga_outl(M_DR7, 0);
+ mga_outl(M_DR8, green<<15);
+ mga_outl(M_DR10, 0);
+ mga_outl(M_DR11, 0);
+ mga_outl(M_DR12, blue<<15);
+ mga_outl(M_DR14, 0);
+ mga_outl(M_DR15, 0);
+#else
+ mga_fifo(2);
+ mga_outl(M_DR2, dzdx);
+ mga_outl(M_DR3, dzdy);
+#endif
+#endif
+
+#ifdef INTERP_RGB
+ /* compute color deltas */
+ eMaj_dr = v3->color[0] - v1->color[0];
+ eBot_dr = v2->color[0] - v1->color[0];
+ eMaj_dg = v3->color[1] - v1->color[1];
+ eBot_dg = v2->color[1] - v1->color[1];
+ eMaj_db = v3->color[2] - v1->color[2];
+ eBot_db = v2->color[2] - v1->color[2];
+
+ /* compute color increments */
+ drdx = ((long long)(eMaj_dr * eBot_dy - eMaj_dy * eBot_dr)<<15) / area;
+ drdy = ((long long)(eMaj_dx * eBot_dr - eMaj_dr * eBot_dx)<<15) / area;
+ dgdx = ((long long)(eMaj_dg * eBot_dy - eMaj_dy * eBot_dg)<<15) / area;
+ dgdy = ((long long)(eMaj_dx * eBot_dg - eMaj_dg * eBot_dx)<<15) / area;
+ dbdx = ((long long)(eMaj_db * eBot_dy - eMaj_dy * eBot_db)<<15) / area;
+ dbdy = ((long long)(eMaj_dx * eBot_db - eMaj_db * eBot_dx)<<15) / area;
+
+ mga_fifo(6);
+ mga_outl(M_DR6, drdx);
+ mga_outl(M_DR7, drdy);
+ mga_outl(M_DR10, dgdx);
+ mga_outl(M_DR11, dgdy);
+ mga_outl(M_DR14, dbdx);
+ mga_outl(M_DR15, dbdy);
+#endif
+
+ if (area > 0) { /* major edge on the right */
+ if (eBot_dy) { /* have lower triangle */
+ mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eBot_dy);
+ if (x2 < x1) {
+ mga_outl(M_AR1, eBot_dx + eBot_dy - 1);
+ mga_outl(M_AR2, eBot_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eBot_dx);
+ mga_outl(M_AR2, -eBot_dx);
+ }
+
+ mga_outl(M_AR6, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR5, eMaj_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eMaj_dx);
+ mga_outl(M_AR5, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eBot_dy);
+ } else { /* no lower triangle */
+ mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR6, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR5, eMaj_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eMaj_dx);
+ mga_outl(M_AR5, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x2);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z2<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v2->color[0]<<15);
+ mga_outl(M_DR8, v2->color[1]<<15);
+ mga_outl(M_DR12, v2->color[2]<<15);
+#endif
+ }
+
+ /* draw upper triangle */
+ if (eTop_dy) {
+ mga_fifo(5);
+ mga_outl(M_AR0, eTop_dy);
+ if (x3 < x2) {
+ mga_outl(M_AR1, eTop_dx + eTop_dy - 1);
+ mga_outl(M_AR2, eTop_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eTop_dx);
+ mga_outl(M_AR2, -eTop_dx);
+ sgn &= ~M_SDXL;
+ }
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eTop_dy);
+ }
+ } else { /* major edge on the left */
+ if (eBot_dy) { /* have lower triangle */
+ mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR2, eMaj_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eMaj_dx);
+ mga_outl(M_AR2, -eMaj_dx);
+ }
+
+ mga_outl(M_AR6, eBot_dy);
+ if (x2 < x1) {
+ mga_outl(M_AR4, eBot_dx + eBot_dy - 1);
+ mga_outl(M_AR5, eBot_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eBot_dx);
+ mga_outl(M_AR5, -eBot_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eBot_dy);
+ } else { /* no lower triangle */
+ mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR2, eMaj_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eMaj_dx);
+ mga_outl(M_AR2, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x2<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ }
+
+ /* draw upper triangle */
+ if (eTop_dy) {
+ mga_fifo(5);
+ mga_outl(M_AR6, eTop_dy);
+ if (x3 < x2) {
+ mga_outl(M_AR4, eTop_dx + eTop_dy - 1);
+ mga_outl(M_AR5, eTop_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eTop_dx);
+ mga_outl(M_AR5, -eTop_dx);
+ sgn &= ~M_SDXR;
+ }
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eTop_dy);
+ }
+ }
+}
+
+#undef FIFO_CNT_RGB
+#undef FIFO_CNT_Z
+
+#undef TRI_SWAP
+
+#undef SETUP_CODE
+#undef INTERP_RGB
+#undef INTERP_Z
+#undef CULL
+#undef TAG
diff --git a/src/mesa/drivers/dos/mga/mga.c b/src/mesa/drivers/dos/mga/mga.c
index 27afba0ba04..5b0ee6437ef 100644
--- a/src/mesa/drivers/dos/mga/mga.c
+++ b/src/mesa/drivers/dos/mga/mga.c
@@ -1,1536 +1,1536 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- *
- * Thanks to Shawn Hargreaves for FreeBE/AF
- */
-
-
-#include <dpmi.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../internal.h"
-#include "mga_reg.h"
-#include "mga_hw.h"
-#include "mga_mode.h"
-#include "mga.h"
-
-
-
-/* cached drawing engine state */
-#define OP_NONE 0
-
-#define OP_DRAWRECT (\
- M_DWG_TRAP | /* opcod */ \
- M_DWG_BLK | /* atype */ \
- /* linear */ \
- M_DWG_NOZCMP | /* zmode */ \
- M_DWG_SOLID | /* solid */ \
- M_DWG_ARZERO | /* arzero */ \
- M_DWG_SGNZERO | /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC /* bop */ \
- /* trans */ \
- /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_DRAWRECT_TX32BGR (\
- M_DWG_TEXTURE_TRAP | /* opcod */ \
- M_DWG_I | /* atype */ \
- /* linear */ \
- M_DWG_NOZCMP | /* zmode */ \
- /* solid */ \
- M_DWG_ARZERO | /* arzero */ \
- M_DWG_SGNZERO | /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC | /* bop */ \
- /* trans */ \
- M_DWG_BU32BGR /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_DRAWRECT_TX24BGR (\
- M_DWG_TEXTURE_TRAP | /* opcod */ \
- M_DWG_I | /* atype */ \
- /* linear */ \
- M_DWG_NOZCMP | /* zmode */ \
- /* solid */ \
- M_DWG_ARZERO | /* arzero */ \
- M_DWG_SGNZERO | /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC | /* bop */ \
- /* trans */ \
- M_DWG_BU24BGR /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_DRAWLINE (\
- M_DWG_AUTOLINE_CLOSE | /* opcod */ \
- M_DWG_RPL | /* atype */ \
- /* linear */ \
- M_DWG_NOZCMP | /* zmode */ \
- M_DWG_SOLID | /* solid */ \
- /* arzero */ \
- /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC | /* bop */ \
- /* trans */ \
- M_DWG_BFCOL /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_DRAWLINE_I (\
- M_DWG_AUTOLINE_CLOSE | /* opcod */ \
- M_DWG_I | /* atype */ \
- /* linear */ \
- M_DWG_NOZCMP | /* zmode */ \
- /* solid */ \
- /* arzero */ \
- /* sgnzero */ \
- /* shftzero */ \
- M_DWG_BOP_SRC | /* bop */ \
- /* trans */ \
- M_DWG_BFCOL /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_DRAWLINE_ZI (\
- M_DWG_AUTOLINE_CLOSE | /* opcod */ \
- M_DWG_ZI | /* atype */ \
- /* linear */ \
- M_DWG_ZLT | /* zmode */ \
- /* solid */ \
- /* arzero */ \
- /* sgnzero */ \
- /* shftzero */ \
- M_DWG_BOP_SRC | /* bop */ \
- /* trans */ \
- M_DWG_BFCOL /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_DRAWTRAP (\
- M_DWG_TRAP | /* opcod */ \
- M_DWG_BLK | /* atype */ \
- /* linear */ \
- M_DWG_NOZCMP | /* zmode */ \
- M_DWG_SOLID | /* solid */ \
- /* arzero */ \
- /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC /* bop */ \
- /* trans */ \
- /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_DRAWTRAP_I (\
- M_DWG_TRAP | /* opcod */ \
- M_DWG_I | /* atype */ \
- /* linear */ \
- M_DWG_NOZCMP | /* zmode */ \
- /* solid */ \
- /* arzero */ \
- /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC /* bop */ \
- /* trans */ \
- /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_DRAWTRAP_ZI (\
- M_DWG_TRAP | /* opcod */ \
- M_DWG_ZI | /* atype */ \
- /* linear */ \
- M_DWG_ZLT | /* zmode */ \
- /* solid */ \
- /* arzero */ \
- /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC /* bop */ \
- /* trans */ \
- /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_ILOAD_32BGR (\
- M_DWG_ILOAD | /* opcod */ \
- M_DWG_RPL | /* atype */ \
- /* linear */ \
- /* zmode */ \
- /* solid */ \
- /* arzero */ \
- M_DWG_SGNZERO | /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC | /* bop */ \
- /* trans */ \
- M_DWG_BU32BGR /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-#define OP_ILOAD_24BGR (\
- M_DWG_ILOAD | /* opcod */ \
- M_DWG_RPL | /* atype */ \
- /* linear */ \
- /* zmode */ \
- /* solid */ \
- /* arzero */ \
- M_DWG_SGNZERO | /* sgnzero */ \
- M_DWG_SHFTZERO | /* shftzero */ \
- M_DWG_BOP_SRC | /* bop */ \
- /* trans */ \
- M_DWG_BU24BGR /* bltmod */ \
- /* pattern */ \
- /* transc */ )
-
-
-
-/* internal hardware data structures */
-static int interleave;
-static unsigned long zorg;
-static unsigned long vram;
-static char card_name[80];
-
-
-
-/* some info about current mode */
-static int __bpp, __bypp;
-static int __pixwidth, __bytwidth, __pagewidth, __width, __height, __zheight;
-static int __operation;
-static int __scrollx, __scrolly;
-
-
-
-/* buffers */
-static int mga_readbuffer, mga_writebuffer;
-static long mga_readbuffer_ptr, mga_writebuffer_ptr;
-static long mga_backbuffer_ptr, mga_frontbuffer_ptr;
-
-
-
-/* lookup table for scaling 2 bit colors up to 8 bits */
-static int _rgb_scale_2[4] = {
- 0, 85, 170, 255
-};
-
-/* lookup table for scaling 3 bit colors up to 8 bits */
-static int _rgb_scale_3[8] = {
- 0, 36, 73, 109, 146, 182, 219, 255
-};
-
-/* lookup table for scaling 5 bit colors up to 8 bits */
-static int _rgb_scale_5[32] = {
- 0, 8, 16, 25, 33, 41, 49, 58,
- 66, 74, 82, 90, 99, 107, 115, 123,
- 132, 140, 148, 156, 165, 173, 181, 189,
- 197, 206, 214, 222, 230, 239, 247, 255
-};
-
-/* lookup table for scaling 6 bit colors up to 8 bits */
-static int _rgb_scale_6[64] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 36, 40, 45, 49, 53, 57, 61,
- 65, 69, 73, 77, 81, 85, 89, 93,
- 97, 101, 105, 109, 113, 117, 121, 125,
- 130, 134, 138, 142, 146, 150, 154, 158,
- 162, 166, 170, 174, 178, 182, 186, 190,
- 194, 198, 202, 206, 210, 215, 219, 223,
- 227, 231, 235, 239, 243, 247, 251, 255
-};
-
-
-
-/*
- * pixel/color routines
- */
-void (*mga_putpixel) (unsigned int offset, int color);
-int (*mga_getpixel) (unsigned int offset);
-void (*mga_getrgba) (unsigned int offset, unsigned char rgba[4]);
-int (*mga_mixrgb) (const unsigned char rgb[]);
-static int (*mga_mixrgb_full) (const unsigned char rgb[]);
-
-
-
-/* mga_fifo:
- * Waits until there are at least <n> free slots in the FIFO buffer.
- */
-#define mga_fifo(n) do { } while (mga_inb(M_FIFOSTATUS) < (n))
-
-
-
-static int _mga_rread (int port, int index)
-{
- mga_select();
- mga_outb(port, index);
- return mga_inb(port+1);
-}
-
-
-
-static void _mga_rwrite (int port, int index, int v)
-{
- mga_select();
- mga_outb(port, index);
- mga_outb(port+1, v);
-}
-
-
-
-static void _mga_ralter (int port, int index, int mask, int v)
-{
- int temp;
- temp = _mga_rread(port, index);
- temp &= (~mask);
- temp |= (v & mask);
- _mga_rwrite(port, index, temp);
-}
-
-
-
-/* WaitTillIdle:
- * Delay until the hardware controller has finished drawing.
- */
-void mga_wait_idle (void)
-{
- int tries = 2;
-
- /*hwptr_unselect(oldptr);*/
-
- mga_select();
-
- while (tries--) {
- do {
- } while (!(mga_inl(M_FIFOSTATUS) & 0x200));
-
- do {
- } while (mga_inl(M_STATUS) & 0x10000);
-
- mga_outb(M_CRTC_INDEX, 0);
- }
-
- /*hwptr_select(oldptr);*/
-}
-
-
-
-/* Desc: Waits for the next vertical sync period.
- *
- * In :
- * Out :
- *
- * Note:
- */
-static void _mga_wait_retrace (void)
-{
- int t1 = 0;
- int t2 = 0;
-
- do {
- t1 = t2;
- t2 = mga_inl(M_VCOUNT);
- } while (t2 >= t1);
-}
-
-
-
-/* Desc: fix scan lines
- *
- * In :
- * Out :
- *
- * Note:
- */
-static unsigned long _mga_fix_scans (unsigned long l)
-{
- unsigned long m = 0;
-
- switch (__bpp) {
- case 8:
- m = interleave?128:64;
- break;
- case 15:
- case 16:
- m = interleave?64:32;
- break;
- case 24:
- m = interleave?128:64;
- break;
- case 32:
- m = 32;
- break;
- }
-
- m -= 1;
- return (l + m) & ~m;
-}
-
-
-
-/* Desc: HW scrolling function
- *
- * In :
- * Out :
- *
- * Note: view Z-buffer in 16bit modes: _mga_display_start(0, 0, __height, 1)
- */
-void mga_display_start (long boffset, long x, long y, long waitVRT)
-{
- long addr;
-
- mga_select();
-
- if (waitVRT >= 0) {
-
- addr = __bytwidth * y + (boffset + x) * __bypp;
-
- if (interleave) {
- addr /= 8;
- } else {
- addr /= 4;
- }
-
- _mga_rwrite(M_CRTC_INDEX, 0x0D, (addr)&0xFF);
- _mga_rwrite(M_CRTC_INDEX, 0x0C, (addr>>8)&0xFF);
- _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x0F, (addr>>16)&0x0F);
-
- while (waitVRT--) {
- _mga_wait_retrace();
- }
- }
-
- __scrollx = x;
- __scrolly = y;
-}
-
-
-
-/* Desc: set READ buffer
- *
- * In : either FRONT or BACK buffer
- * Out :
- *
- * Note:
- */
-void mga_set_readbuffer (int buffer)
-{
- mga_readbuffer = buffer;
-
- mga_readbuffer_ptr = (mga_readbuffer == MGA_FRONTBUFFER) ? mga_frontbuffer_ptr : mga_backbuffer_ptr;
-}
-
-
-
-/* Desc: set WRITE buffer
- *
- * In : either FRONT or BACK buffer
- * Out :
- *
- * Note:
- */
-void mga_set_writebuffer (int buffer)
-{
- mga_writebuffer = buffer;
-
- mga_writebuffer_ptr = (mga_writebuffer == MGA_FRONTBUFFER) ? mga_frontbuffer_ptr : mga_backbuffer_ptr;
-
- mga_select();
- mga_fifo(1);
- mga_outl(M_YDSTORG, mga_writebuffer_ptr);
-
- __operation = OP_NONE;
-}
-
-
-
-/* Desc: swap buffers
- *
- * In : number of vertical retraces to wait
- * Out :
- *
- * Note:
- */
-void mga_swapbuffers (int swapinterval)
-{
- /* flip the buffers */
- mga_backbuffer_ptr ^= __pagewidth;
- mga_frontbuffer_ptr ^= __pagewidth;
-
- /* update READ/WRITE pointers */
- mga_set_readbuffer(mga_readbuffer);
- mga_set_writebuffer(mga_writebuffer);
-
- /* make sure we always see the FRONT buffer */
- mga_display_start(mga_frontbuffer_ptr, __scrollx, __scrolly, swapinterval);
-}
-
-
-
-/* Desc: color composition (w/o ALPHA)
- *
- * In : array of integers (R, G, B)
- * Out : color
- *
- * Note: -
- */
-static __inline int _mga_mixrgb8 (const unsigned char rgb[])
-{
- return (rgb[0]&0xe0)|((rgb[1]>>5)<<2)|(rgb[2]>>6);
-}
-static __inline int _mga_mixrgb15 (const unsigned char rgb[])
-{
- return ((rgb[0]>>3)<<10)|((rgb[1]>>3)<<5)|(rgb[2]>>3);
-}
-static __inline int _mga_mixrgb16 (const unsigned char rgb[])
-{
- return ((rgb[0]>>3)<<11)|((rgb[1]>>2)<<5)|(rgb[2]>>3);
-}
-static __inline int _mga_mixrgb32 (const unsigned char rgb[])
-{
- return (rgb[0]<<16)|(rgb[1]<<8)|(rgb[2]);
-}
-
-
-
-/* Desc: color composition (w/o ALPHA) + replication
- *
- * In : array of integers (R, G, B)
- * Out : color
- *
- * Note: -
- */
-static int _mga_mixrgb8_full (const unsigned char rgb[])
-{
- int color = _mga_mixrgb8(rgb);
- color |= color<<8;
- return (color<<16) | color;
-}
-static int _mga_mixrgb15_full (const unsigned char rgb[])
-{
- int color = _mga_mixrgb15(rgb);
- return (color<<16) | color;
-}
-static int _mga_mixrgb16_full (const unsigned char rgb[])
-{
- int color = _mga_mixrgb16(rgb);
- return (color<<16) | color;
-}
-#define _mga_mixrgb32_full _mga_mixrgb32
-
-
-
-/* Desc: putpixel
- *
- * In : pixel offset, pixel value
- * Out : -
- *
- * Note: uses current write buffer
- */
-static void _mga_putpixel8 (unsigned int offset, int color)
-{
- hwptr_pokeb(mgaptr.linear_map, mga_writebuffer_ptr + offset, color);
-}
-#define _mga_putpixel15 _mga_putpixel16
-static void _mga_putpixel16 (unsigned int offset, int color)
-{
- hwptr_pokew(mgaptr.linear_map, (mga_writebuffer_ptr + offset) * 2, color);
-}
-static void _mga_putpixel32 (unsigned int offset, int color)
-{
- hwptr_pokel(mgaptr.linear_map, (mga_writebuffer_ptr + offset) * 4, color);
-}
-
-
-
-/* Desc: pixel retrieval
- *
- * In : pixel offset
- * Out : pixel value
- *
- * Note: uses current read buffer
- */
-static __inline int _mga_getpixel8 (unsigned int offset)
-{
- return hwptr_peekb(mgaptr.linear_map, mga_readbuffer_ptr + offset);
-}
-#define _mga_getpixel15 _mga_getpixel16
-static __inline int _mga_getpixel16 (unsigned int offset)
-{
- return hwptr_peekw(mgaptr.linear_map, (mga_readbuffer_ptr + offset) * 2);
-}
-static __inline int _mga_getpixel32 (unsigned int offset)
-{
- return hwptr_peekl(mgaptr.linear_map, (mga_readbuffer_ptr + offset) * 4);
-}
-
-
-
-/* Desc: color decomposition
- *
- * In : pixel offset, array of integers to hold color components (R, G, B, A)
- * Out : -
- *
- * Note: uses current read buffer
- */
-static void _mga_getrgba8 (unsigned int offset, unsigned char rgba[4])
-{
- int c = _mga_getpixel8(offset);
- rgba[0] = _rgb_scale_3[(c >> 5) & 0x7];
- rgba[1] = _rgb_scale_3[(c >> 2) & 0x7];
- rgba[2] = _rgb_scale_2[c & 0x3];
- rgba[3] = 255;
-}
-static void _mga_getrgba15 (unsigned int offset, unsigned char rgba[4])
-{
- int c = _mga_getpixel15(offset);
- rgba[0] = _rgb_scale_5[(c >> 10) & 0x1F];
- rgba[1] = _rgb_scale_5[(c >> 5) & 0x1F];
- rgba[2] = _rgb_scale_5[c & 0x1F];
- rgba[3] = 255;
-}
-static void _mga_getrgba16 (unsigned int offset, unsigned char rgba[4])
-{
- int c = _mga_getpixel16(offset);
- rgba[0] = _rgb_scale_5[(c >> 11) & 0x1F];
- rgba[1] = _rgb_scale_6[(c >> 5) & 0x3F];
- rgba[2] = _rgb_scale_5[c & 0x1F];
- rgba[3] = 255;
-}
-static void _mga_getrgba32 (unsigned int offset, unsigned char rgba[4])
-{
- int c = _mga_getpixel32(offset);
- rgba[0] = c >> 16;
- rgba[1] = c >> 8;
- rgba[2] = c;
- rgba[3] = c >> 24;
-}
-
-
-
-/* Desc: RGB flat line
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_draw_line_rgb_flat (const MGAvertex *v1, const MGAvertex *v2)
-{
- unsigned long color;
- int x1 = v1->win[0];
- int y1 = v1->win[1];
- int x2 = v2->win[0];
- int y2 = v2->win[1];
-
- if ((x1 == x2) && (y1 == y2)) {
- return;
- }
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWLINE) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWLINE);
- __operation = OP_DRAWLINE;
- }
-
- color = mga_mixrgb_full(v2->color);
-
- /* draw the line */
- mga_fifo(3);
- mga_outl(M_FCOL, color);
- mga_outl(M_XYSTRT, (y1<<16) | x1);
- mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
-}
-
-
-
-/* Desc: RGB flat Z-less line
- *
- * In :
- * Out :
- *
- * Note: I never figured out "diagonal increments"
- */
-void mga_draw_line_rgb_flat_zless (const MGAvertex *v1, const MGAvertex *v2)
-{
- int z1, dz;
- int x1 = v1->win[0];
- int y1 = v1->win[1];
- int x2 = v2->win[0];
- int y2 = v2->win[1];
- int dx = abs(x2 - x1);
- int dy = abs(y2 - y1);
-
- if ((dx == 0) && (dy == 0)) {
- return;
- }
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWLINE_ZI) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWLINE_ZI);
- __operation = OP_DRAWLINE_ZI;
- }
-
- if (dx < dy) {
- dx = dy;
- }
-
- z1 = v1->win[2] << 15;
- dz = ((v2->win[2] << 15) - z1) / dx;
-
- /* draw the line */
- mga_fifo(14);
- mga_outl(M_DR0, z1);
- mga_outl(M_DR2, dz);
- mga_outl(M_DR3, dz);
- mga_outl(M_DR4, v2->color[0] << 15);
- mga_outl(M_DR6, 0);
- mga_outl(M_DR7, 0);
- mga_outl(M_DR8, v2->color[1] << 15);
- mga_outl(M_DR10, 0);
- mga_outl(M_DR11, 0);
- mga_outl(M_DR12, v2->color[2] << 15);
- mga_outl(M_DR14, 0);
- mga_outl(M_DR15, 0);
- mga_outl(M_XYSTRT, (y1<<16) | x1);
- mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
-}
-
-
-
-/* Desc: RGB iterated line
- *
- * In :
- * Out :
- *
- * Note: I never figured out "diagonal increments"
- */
-void mga_draw_line_rgb_iter (const MGAvertex *v1, const MGAvertex *v2)
-{
- int r1, g1, b1;
- int dr, dg, db;
- int x1 = v1->win[0];
- int y1 = v1->win[1];
- int x2 = v2->win[0];
- int y2 = v2->win[1];
- int dx = abs(x2 - x1);
- int dy = abs(y2 - y1);
-
- if ((dx == 0) && (dy == 0)) {
- return;
- }
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWLINE_I) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWLINE_I);
- __operation = OP_DRAWLINE_I;
- }
-
- if (dx < dy) {
- dx = dy;
- }
-
- r1 = v1->color[0] << 15;
- g1 = v1->color[1] << 15;
- b1 = v1->color[2] << 15;
- dr = ((v2->color[0] << 15) - r1) / dx;
- dg = ((v2->color[1] << 15) - g1) / dx;
- db = ((v2->color[2] << 15) - b1) / dx;
-
- /* draw the line */
- mga_fifo(11);
- mga_outl(M_DR4, r1);
- mga_outl(M_DR6, dr);
- mga_outl(M_DR7, dr);
- mga_outl(M_DR8, g1);
- mga_outl(M_DR10, dg);
- mga_outl(M_DR11, dg);
- mga_outl(M_DR12, b1);
- mga_outl(M_DR14, db);
- mga_outl(M_DR15, db);
- mga_outl(M_XYSTRT, (y1<<16) | x1);
- mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
-}
-
-
-
-/* Desc: RGB iterated Z-less line
- *
- * In :
- * Out :
- *
- * Note: I never figured out "diagonal increments"
- */
-void mga_draw_line_rgb_iter_zless (const MGAvertex *v1, const MGAvertex *v2)
-{
- int z1, dz;
- int r1, g1, b1;
- int dr, dg, db;
- int x1 = v1->win[0];
- int y1 = v1->win[1];
- int x2 = v2->win[0];
- int y2 = v2->win[1];
- int dx = abs(x2 - x1);
- int dy = abs(y2 - y1);
-
- if ((dx == 0) && (dy == 0)) {
- return;
- }
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWLINE_ZI) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWLINE_ZI);
- __operation = OP_DRAWLINE_ZI;
- }
-
- if (dx < dy) {
- dx = dy;
- }
-
- z1 = v1->win[2] << 15;
- dz = ((v2->win[2] << 15) - z1) / dx;
-
- r1 = v1->color[0] << 15;
- g1 = v1->color[1] << 15;
- b1 = v1->color[2] << 15;
- dr = ((v2->color[0] << 15) - r1) / dx;
- dg = ((v2->color[1] << 15) - g1) / dx;
- db = ((v2->color[2] << 15) - b1) / dx;
-
- /* draw the line */
- mga_fifo(14);
- mga_outl(M_DR0, z1);
- mga_outl(M_DR2, dz);
- mga_outl(M_DR3, dz);
- mga_outl(M_DR4, r1);
- mga_outl(M_DR6, dr);
- mga_outl(M_DR7, dr);
- mga_outl(M_DR8, g1);
- mga_outl(M_DR10, dg);
- mga_outl(M_DR11, dg);
- mga_outl(M_DR12, b1);
- mga_outl(M_DR14, db);
- mga_outl(M_DR15, db);
- mga_outl(M_XYSTRT, (y1<<16) | x1);
- mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
-}
-
-
-
-/* Desc: RGB flat triangle
- *
- * In :
- * Out :
- *
- * Note:
- */
-#define TAG mga_draw_tri_rgb_flat
-#define CULL
-#define SETUP_CODE \
- if (__operation != OP_DRAWTRAP) { \
- mga_fifo(1); \
- mga_outl(M_DWGCTL, OP_DRAWTRAP); \
- __operation = OP_DRAWTRAP; \
- }
-#include "m_ttemp.h"
-
-
-
-/* Desc: RGB flat Z-less triangle
- *
- * In :
- * Out :
- *
- * Note:
- */
-#define TAG mga_draw_tri_rgb_flat_zless
-#define CULL
-#define INTERP_Z
-#define SETUP_CODE \
- if (__operation != OP_DRAWTRAP_ZI) { \
- mga_fifo(1); \
- mga_outl(M_DWGCTL, OP_DRAWTRAP_ZI); \
- __operation = OP_DRAWTRAP_ZI; \
- }
-#include "m_ttemp.h"
-
-
-
-/* Desc: RGB iterated triangle
- *
- * In :
- * Out :
- *
- * Note:
- */
-#define TAG mga_draw_tri_rgb_iter
-#define CULL
-#define INTERP_RGB
-#define SETUP_CODE \
- if (__operation != OP_DRAWTRAP_I) { \
- mga_fifo(1); \
- mga_outl(M_DWGCTL, OP_DRAWTRAP_I); \
- __operation = OP_DRAWTRAP_I; \
- }
-#include "m_ttemp.h"
-
-
-
-/* Desc: RGB iterated Z-less triangle
- *
- * In :
- * Out :
- *
- * Note:
- */
-#define TAG mga_draw_tri_rgb_iter_zless
-#define CULL
-#define INTERP_Z
-#define INTERP_RGB
-#define SETUP_CODE \
- if (__operation != OP_DRAWTRAP_ZI) { \
- mga_fifo(1); \
- mga_outl(M_DWGCTL, OP_DRAWTRAP_ZI); \
- __operation = OP_DRAWTRAP_ZI; \
- }
-#include "m_ttemp.h"
-
-
-
-/* Desc: RGB flat rectangle
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_draw_rect_rgb_flat (int left, int top, int width, int height, int color)
-{
- if (__bpp == 8) {
- color |= color << 8;
- }
- if (__bpp <= 16) {
- color |= color << 16;
- }
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWRECT) {
-
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWRECT);
- __operation = OP_DRAWRECT;
- }
-
- /* draw the rectangle */
- mga_fifo(3);
- mga_outl(M_FCOL, color);
- mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
- mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
-}
-
-
-
-/* Desc: 32RGB textured span
- *
- * In :
- * Out :
- *
- * Note: 0 <= width <= 7*1024
- */
-void mga_draw_span_rgb_tx32 (int left, int top, int width, const unsigned long *bitmap)
-{
- int i;
-
- if (!width) {
- return;
- }
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWRECT_TX32BGR) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWRECT_TX32BGR);
- __operation = OP_DRAWRECT_TX32BGR;
- }
-
- /* draw the rectangle */
- mga_fifo(2);
- mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
- mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | 1);
-
- /* copy data to the pseudo-dma window */
- i = 0;
- do {
- mga_outl(i, *bitmap);
- bitmap++;
- i += 4;
- } while (--width);
-}
-
-
-
-/* Desc: 24RGB textured span
- *
- * In :
- * Out :
- *
- * Note: 0 <= width <= 7*1024
- */
-void mga_draw_span_rgb_tx24 (int left, int top, int width, const unsigned long *bitmap)
-{
- int i;
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWRECT_TX24BGR) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWRECT_TX24BGR);
- __operation = OP_DRAWRECT_TX24BGR;
- }
-
- /* draw the rectangle */
- mga_fifo(2);
- mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
- mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | 1);
-
- /* copy data to the pseudo-dma window */
- i = 0;
- width = (width * 3 + 3) / 4;
- while (width) {
- mga_outl(i & (7 * 1024 - 1), *bitmap);
- bitmap++;
- i += 4;
- width--;
- }
-}
-
-
-
-/* Desc: 32RGB textured rectangle
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_draw_rect_rgb_tx32 (int left, int top, int width, int height, const unsigned long *bitmap)
-{
- int i;
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWRECT_TX32BGR) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWRECT_TX32BGR);
- __operation = OP_DRAWRECT_TX32BGR;
- }
-
- /* draw the rectangle */
- mga_fifo(2);
- mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
- mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
-
- /* copy data to the pseudo-dma window */
- i = 0;
- width *= height;
- while (width) {
- mga_outl(i & (7 * 1024 - 1), *bitmap);
- bitmap++;
- i += 4;
- width--;
- }
-}
-
-
-
-/* Desc: 24RGB textured rectangle
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_draw_rect_rgb_tx24 (int left, int top, int width, int height, const unsigned long *bitmap)
-{
- int i;
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_DRAWRECT_TX24BGR) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_DRAWRECT_TX24BGR);
- __operation = OP_DRAWRECT_TX24BGR;
- }
-
- /* draw the rectangle */
- mga_fifo(2);
- mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
- mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
-
- /* copy data to the pseudo-dma window */
- i = 0;
- width = (width * height * 3 + 3) / 4;
- while (width) {
- mga_outl(i & (7 * 1024 - 1), *bitmap);
- bitmap++;
- i += 4;
- width--;
- }
-}
-
-
-
-/* Desc: copy 32RGB image to screen
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_iload_32RGB (int left, int top, int width, int height, const unsigned long *bitmap)
-{
- int i;
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_ILOAD_32BGR) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_ILOAD_32BGR);
- __operation = OP_ILOAD_32BGR;
- }
-
- /* draw the bitmap */
- mga_fifo(5);
- mga_outl(M_AR0, width-1);
- mga_outl(M_AR3, 0);
- mga_outl(M_AR5, 0);
- mga_outl(M_FXBNDRY, ((left+width-1)<<16) | left);
- mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
-
- /* copy data to the pseudo-dma window */
- i = 0;
- width *= height;
- while (width) {
- mga_outl(i & (7 * 1024 - 1), *bitmap);
- bitmap++;
- i += 4;
- width--;
- }
-}
-
-
-
-/* Desc: copy 24RGB image to screen
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_iload_24RGB (int left, int top, int width, int height, const unsigned long *bitmap)
-{
- int i;
-
- mga_select();
-
- /* set engine state */
- if (__operation != OP_ILOAD_24BGR) {
- mga_fifo(1);
- mga_outl(M_DWGCTL, OP_ILOAD_24BGR);
- __operation = OP_ILOAD_24BGR;
- }
-
- /* draw the bitmap */
- mga_fifo(5);
- mga_outl(M_AR0, width-1);
- mga_outl(M_AR3, 0);
- mga_outl(M_AR5, 0);
- mga_outl(M_FXBNDRY, ((left+width-1)<<16) | left);
- mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
-
- /* copy data to the pseudo-dma window */
- i = 0;
- width = (width * height * 3 + 3) / 4;
- while (width) {
- mga_outl(i & (7 * 1024 - 1), *bitmap);
- bitmap++;
- i += 4;
- width--;
- }
-}
-
-
-
-/* Desc: get Z-buffer value
- *
- * In :
- * Out :
- *
- * Note:
- */
-unsigned short mga_getz (int offset)
-{
- return hwptr_peekw(mgaptr.linear_map, zorg + (mga_readbuffer_ptr + offset) * 2);
-}
-
-
-
-/* Desc: put Z-buffer value
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_setz (int offset, unsigned short z)
-{
- hwptr_pokew(mgaptr.linear_map, zorg + (mga_writebuffer_ptr + offset) * 2, z);
-}
-
-
-
-/* Desc: clear Z-buffer
- *
- * In :
- * Out :
- *
- * Note: uses current write buffer
- */
-static void _mga_clear_zed (int left, int top, int width, int height, unsigned short z)
-{
- if (__bpp == 16) {
- /* GPU store (high bandwidth)
- * Hack alert:
- * can cause problems with concurrent FB accesses
- */
- mga_select();
- mga_fifo(1);
- mga_outl(M_YDSTORG, mga_writebuffer_ptr + zorg/2);
- mga_draw_rect_rgb_flat(left, top, width, height, z);
- mga_fifo(1);
- mga_outl(M_YDSTORG, mga_writebuffer_ptr);
- } else {
- /* CPU store */
- unsigned long i, zz = (z<<16) | z;
- unsigned long ofs = zorg + (top * __pixwidth + left + mga_writebuffer_ptr) * 2;
- hwptr_select(mgaptr.linear_map);
- while (height--) {
- i = width/2;
- while (i--) {
- hwptr_nspokel(mgaptr.linear_map, ofs, zz);
- ofs += 4;
- }
- if (width & 1) {
- hwptr_nspokew(mgaptr.linear_map, ofs, z);
- ofs += 2;
- }
- ofs += (__pixwidth - width) * 2;
- }
- }
-}
-
-
-
-/* Desc: clear color- and Z-buffer
- *
- * In : front = clear front buffer
- * back = clear back buffer
- * zed = clear depth buffer
- * left = leftmost pixel to be cleared
- * top = starting line
- * width = number of pixels
- * height = number of lines
- * color = color to clear to
- * z = z value (ignored if zed==0)
- * Out :
- *
- * Note:
- */
-void mga_clear (int front, int back, int zed, int left, int top, int width, int height, int color, unsigned short z)
-{
- if (front) {
- if (mga_writebuffer == MGA_FRONTBUFFER) {
- mga_draw_rect_rgb_flat(left, top, width, height, color);
- if (zed) {
- _mga_clear_zed(left, top, width, height, z);
- }
- front = 0;
- }
- }
- if (back) {
- if (mga_writebuffer == MGA_BACKBUFFER) {
- mga_draw_rect_rgb_flat(left, top, width, height, color);
- if (zed) {
- _mga_clear_zed(left, top, width, height, z);
- }
- back = 0;
- }
- }
- if (front) {
- int old = mga_writebuffer;
- mga_set_writebuffer(MGA_FRONTBUFFER);
- mga_draw_rect_rgb_flat(left, top, width, height, color);
- if (zed) {
- _mga_clear_zed(left, top, width, height, z);
- }
- mga_set_writebuffer(old);
- front = 0;
- }
- if (back) {
- int old = mga_writebuffer;
- mga_set_writebuffer(MGA_BACKBUFFER);
- mga_draw_rect_rgb_flat(left, top, width, height, color);
- if (zed) {
- _mga_clear_zed(left, top, width, height, z);
- }
- mga_set_writebuffer(old);
- back = 0;
- }
-}
-
-
-
-/* Desc: Attempts to enter specified video mode.
- *
- * In : ptr to mode structure, number of pages, Z-buffer request, refresh rate
- * Out : 0 if success
- *
- * Note: also set up the accelerator engine
- */
-int mga_open (int width, int height, int bpp, int buffers, int zbuffer, int refresh)
-{
- static int mill_strides[] = { 640, 768, 800, 960, 1024, 1152, 1280, 1600, 1920, 2048, 0 };
- unsigned int i, used;
- MGA_MODE *p;
-
- if (mga_hw_init(&vram, &interleave, card_name) == 0) {
- return -1;
- }
-
- if ((p = mga_mode_find(width, height, bpp)) == NULL) {
- return -1;
- }
-
- __bpp = p->bpp;
- __width = __pagewidth = p->xres;
- __height = p->yres;
-
- if (buffers > 1) {
- __pagewidth = _mga_fix_scans(__pagewidth);
- __pixwidth = __pagewidth * buffers;
- } else {
- __pixwidth = __pagewidth;
- __pixwidth = _mga_fix_scans(__pixwidth);
- }
-
- for (i=0; mill_strides[i]; i++) {
- if (__pixwidth <= mill_strides[i]) {
- __pixwidth = mill_strides[i];
- break;
- }
- }
-
- __bypp = (__bpp+7)/8;
- __bytwidth = __pixwidth * __bypp;
-
- /* compute used memory: framebuffer + zbuffer */
- used = __bytwidth * __height;
- if (zbuffer) {
- zorg = (used + 511) & ~511;
- /* Hack alert:
- * a 16-bit Z-buffer size is (stride_in_pixels * number_of_lines * 2)
- * We cannot mess with the Z-buffer width, but we might decrease the
- * number of lines, if the user requests less than (screen_height). For
- * example with a 2MB card, one can have 640x480x16 display with 2 color
- * buffers and Z-buffer if the maximum requested height is 339:
- * Total = (640*480 * 2 + 640*339 * 2) * 2
- * However, this means the user must not write beyond the window's height
- * and if we'll ever implement moveable windows, we'll have to reconsider
- * this hack.
- */
-#if 1
- __zheight = height; /* smaller */
- used = zorg + __pixwidth * 2 * __zheight;
-#else
- __zheight = __height;
- used = zorg + __pixwidth * 2 * __zheight;
-#endif
- }
-
- if (mill_strides[i] && (vram>=used)) {
- /* enter mode */
- mga_mode_switch(p, refresh);
- /* change the scan line length */
- _mga_ralter(M_CRTC_INDEX, 0x14, 0x40, 0); /* disable DWORD */
- _mga_ralter(M_CRTC_INDEX, 0x17, 0x40, 0x40); /* wbmode = BYTE */
- if (interleave) {
- _mga_rwrite(M_CRTC_INDEX, 0x13, __bytwidth/16);
- _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x30, ((__bytwidth/16)>>4)&0x30);
- } else {
- _mga_rwrite(M_CRTC_INDEX, 0x13, __bytwidth/8);
- _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x30, ((__bytwidth/8)>>4)&0x30);
- }
- } else {
- return -1;
- }
-
- /* setup buffers */
- mga_frontbuffer_ptr = 0;
- if (buffers > 1) {
- mga_backbuffer_ptr = __pagewidth;
- mga_set_readbuffer(MGA_BACKBUFFER);
- mga_set_writebuffer(MGA_BACKBUFFER);
- } else {
- mga_backbuffer_ptr = 0;
- mga_set_readbuffer(MGA_FRONTBUFFER);
- mga_set_writebuffer(MGA_FRONTBUFFER);
- }
- mga_display_start(mga_frontbuffer_ptr, __scrollx = 0, __scrolly = 0, 1);
-
- /* set up the accelerator engine */
- mga_select();
-
- mga_fifo(8);
- mga_outl(M_PITCH, __pixwidth);
- mga_outl(M_PLNWT, 0xFFFFFFFF);
- mga_outl(M_OPMODE, M_DMA_BLIT);
- mga_outl(M_CXBNDRY, 0xFFFF0000);
- mga_outl(M_YTOP, 0x00000000);
- mga_outl(M_YBOT, 0x007FFFFF);
- mga_outl(M_ZORG, zorg);
-
-#define INITPTR(bpp) \
- mga_putpixel = _mga_putpixel##bpp; \
- mga_getrgba = _mga_getrgba##bpp; \
- mga_getpixel = _mga_getpixel##bpp; \
- mga_mixrgb = _mga_mixrgb##bpp; \
- mga_mixrgb_full = _mga_mixrgb##bpp##_full
-
- switch (__bpp) {
- case 8:
- mga_outl(M_MACCESS, 0);
- INITPTR(8);
- break;
- case 15:
- mga_outl(M_MACCESS, 0x80000001);
- INITPTR(15);
- break;
- case 16:
- mga_outl(M_MACCESS, 1);
- INITPTR(16);
- break;
- case 32:
- mga_outl(M_MACCESS, 2);
- INITPTR(32);
- break;
- }
-
-#undef INITPTR
-
- /* disable VGA aperture */
- i = mga_inb(M_MISC_R);
- mga_outb(M_MISC_W, i & ~2);
-
- /* clear Z-buffer (if any) */
- if (zbuffer) {
- unsigned long ofs = zorg;
- unsigned long len = zorg + __pixwidth * 2 * __zheight;
-
- hwptr_select(mgaptr.linear_map);
- for (; ofs<len; ofs+=4) {
- hwptr_nspokel(mgaptr.linear_map, ofs, -1);
- }
- }
-
- return 0;
-}
-
-
-
-/* Desc:
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_close (int restore, int unmap)
-{
- if (restore) {
- mga_mode_restore();
- }
- if (unmap) {
- mga_hw_fini();
- }
-}
-
-
-
-/* Desc: state retrieval
- *
- * In : parameter name, ptr to storage
- * Out : 0 if request successfully processed
- *
- * Note: -
- */
-int mga_get (int pname, int *params)
-{
- switch (pname) {
- case MGA_GET_CARD_NAME:
- strcat(strcpy((char *)params, "Matrox "), card_name);
- break;
- case MGA_GET_VRAM:
- params[0] = vram;
- break;
- case MGA_GET_CI_PREC:
- params[0] = 0;
- break;
- case MGA_GET_HPIXELS:
- params[0] = __pixwidth;
- break;
- case MGA_GET_SCREEN_SIZE:
- params[0] = __width;
- params[1] = __height;
- break;
- default:
- return -1;
- }
- return 0;
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ *
+ * Thanks to Shawn Hargreaves for FreeBE/AF
+ */
+
+
+#include <dpmi.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../internal.h"
+#include "mga_reg.h"
+#include "mga_hw.h"
+#include "mga_mode.h"
+#include "mga.h"
+
+
+
+/* cached drawing engine state */
+#define OP_NONE 0
+
+#define OP_DRAWRECT (\
+ M_DWG_TRAP | /* opcod */ \
+ M_DWG_BLK | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ M_DWG_SOLID | /* solid */ \
+ M_DWG_ARZERO | /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC /* bop */ \
+ /* trans */ \
+ /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWRECT_TX32BGR (\
+ M_DWG_TEXTURE_TRAP | /* opcod */ \
+ M_DWG_I | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ /* solid */ \
+ M_DWG_ARZERO | /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BU32BGR /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWRECT_TX24BGR (\
+ M_DWG_TEXTURE_TRAP | /* opcod */ \
+ M_DWG_I | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ /* solid */ \
+ M_DWG_ARZERO | /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BU24BGR /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWLINE (\
+ M_DWG_AUTOLINE_CLOSE | /* opcod */ \
+ M_DWG_RPL | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ M_DWG_SOLID | /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BFCOL /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWLINE_I (\
+ M_DWG_AUTOLINE_CLOSE | /* opcod */ \
+ M_DWG_I | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BFCOL /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWLINE_ZI (\
+ M_DWG_AUTOLINE_CLOSE | /* opcod */ \
+ M_DWG_ZI | /* atype */ \
+ /* linear */ \
+ M_DWG_ZLT | /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BFCOL /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWTRAP (\
+ M_DWG_TRAP | /* opcod */ \
+ M_DWG_BLK | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ M_DWG_SOLID | /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC /* bop */ \
+ /* trans */ \
+ /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWTRAP_I (\
+ M_DWG_TRAP | /* opcod */ \
+ M_DWG_I | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC /* bop */ \
+ /* trans */ \
+ /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWTRAP_ZI (\
+ M_DWG_TRAP | /* opcod */ \
+ M_DWG_ZI | /* atype */ \
+ /* linear */ \
+ M_DWG_ZLT | /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC /* bop */ \
+ /* trans */ \
+ /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_ILOAD_32BGR (\
+ M_DWG_ILOAD | /* opcod */ \
+ M_DWG_RPL | /* atype */ \
+ /* linear */ \
+ /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BU32BGR /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_ILOAD_24BGR (\
+ M_DWG_ILOAD | /* opcod */ \
+ M_DWG_RPL | /* atype */ \
+ /* linear */ \
+ /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BU24BGR /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+
+
+
+/* internal hardware data structures */
+static int interleave;
+static unsigned long zorg;
+static unsigned long vram;
+static char card_name[80];
+
+
+
+/* some info about current mode */
+static int __bpp, __bypp;
+static int __pixwidth, __bytwidth, __pagewidth, __width, __height, __zheight;
+static int __operation;
+static int __scrollx, __scrolly;
+
+
+
+/* buffers */
+static int mga_readbuffer, mga_writebuffer;
+static long mga_readbuffer_ptr, mga_writebuffer_ptr;
+static long mga_backbuffer_ptr, mga_frontbuffer_ptr;
+
+
+
+/* lookup table for scaling 2 bit colors up to 8 bits */
+static int _rgb_scale_2[4] = {
+ 0, 85, 170, 255
+};
+
+/* lookup table for scaling 3 bit colors up to 8 bits */
+static int _rgb_scale_3[8] = {
+ 0, 36, 73, 109, 146, 182, 219, 255
+};
+
+/* lookup table for scaling 5 bit colors up to 8 bits */
+static int _rgb_scale_5[32] = {
+ 0, 8, 16, 25, 33, 41, 49, 58,
+ 66, 74, 82, 90, 99, 107, 115, 123,
+ 132, 140, 148, 156, 165, 173, 181, 189,
+ 197, 206, 214, 222, 230, 239, 247, 255
+};
+
+/* lookup table for scaling 6 bit colors up to 8 bits */
+static int _rgb_scale_6[64] = {
+ 0, 4, 8, 12, 16, 20, 24, 28,
+ 32, 36, 40, 45, 49, 53, 57, 61,
+ 65, 69, 73, 77, 81, 85, 89, 93,
+ 97, 101, 105, 109, 113, 117, 121, 125,
+ 130, 134, 138, 142, 146, 150, 154, 158,
+ 162, 166, 170, 174, 178, 182, 186, 190,
+ 194, 198, 202, 206, 210, 215, 219, 223,
+ 227, 231, 235, 239, 243, 247, 251, 255
+};
+
+
+
+/*
+ * pixel/color routines
+ */
+void (*mga_putpixel) (unsigned int offset, int color);
+int (*mga_getpixel) (unsigned int offset);
+void (*mga_getrgba) (unsigned int offset, unsigned char rgba[4]);
+int (*mga_mixrgb) (const unsigned char rgb[]);
+static int (*mga_mixrgb_full) (const unsigned char rgb[]);
+
+
+
+/* mga_fifo:
+ * Waits until there are at least <n> free slots in the FIFO buffer.
+ */
+#define mga_fifo(n) do { } while (mga_inb(M_FIFOSTATUS) < (n))
+
+
+
+static int _mga_rread (int port, int index)
+{
+ mga_select();
+ mga_outb(port, index);
+ return mga_inb(port+1);
+}
+
+
+
+static void _mga_rwrite (int port, int index, int v)
+{
+ mga_select();
+ mga_outb(port, index);
+ mga_outb(port+1, v);
+}
+
+
+
+static void _mga_ralter (int port, int index, int mask, int v)
+{
+ int temp;
+ temp = _mga_rread(port, index);
+ temp &= (~mask);
+ temp |= (v & mask);
+ _mga_rwrite(port, index, temp);
+}
+
+
+
+/* WaitTillIdle:
+ * Delay until the hardware controller has finished drawing.
+ */
+void mga_wait_idle (void)
+{
+ int tries = 2;
+
+ /*hwptr_unselect(oldptr);*/
+
+ mga_select();
+
+ while (tries--) {
+ do {
+ } while (!(mga_inl(M_FIFOSTATUS) & 0x200));
+
+ do {
+ } while (mga_inl(M_STATUS) & 0x10000);
+
+ mga_outb(M_CRTC_INDEX, 0);
+ }
+
+ /*hwptr_select(oldptr);*/
+}
+
+
+
+/* Desc: Waits for the next vertical sync period.
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static void _mga_wait_retrace (void)
+{
+ int t1 = 0;
+ int t2 = 0;
+
+ do {
+ t1 = t2;
+ t2 = mga_inl(M_VCOUNT);
+ } while (t2 >= t1);
+}
+
+
+
+/* Desc: fix scan lines
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static unsigned long _mga_fix_scans (unsigned long l)
+{
+ unsigned long m = 0;
+
+ switch (__bpp) {
+ case 8:
+ m = interleave?128:64;
+ break;
+ case 15:
+ case 16:
+ m = interleave?64:32;
+ break;
+ case 24:
+ m = interleave?128:64;
+ break;
+ case 32:
+ m = 32;
+ break;
+ }
+
+ m -= 1;
+ return (l + m) & ~m;
+}
+
+
+
+/* Desc: HW scrolling function
+ *
+ * In :
+ * Out :
+ *
+ * Note: view Z-buffer in 16bit modes: _mga_display_start(0, 0, __height, 1)
+ */
+void mga_display_start (long boffset, long x, long y, long waitVRT)
+{
+ long addr;
+
+ mga_select();
+
+ if (waitVRT >= 0) {
+
+ addr = __bytwidth * y + (boffset + x) * __bypp;
+
+ if (interleave) {
+ addr /= 8;
+ } else {
+ addr /= 4;
+ }
+
+ _mga_rwrite(M_CRTC_INDEX, 0x0D, (addr)&0xFF);
+ _mga_rwrite(M_CRTC_INDEX, 0x0C, (addr>>8)&0xFF);
+ _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x0F, (addr>>16)&0x0F);
+
+ while (waitVRT--) {
+ _mga_wait_retrace();
+ }
+ }
+
+ __scrollx = x;
+ __scrolly = y;
+}
+
+
+
+/* Desc: set READ buffer
+ *
+ * In : either FRONT or BACK buffer
+ * Out :
+ *
+ * Note:
+ */
+void mga_set_readbuffer (int buffer)
+{
+ mga_readbuffer = buffer;
+
+ mga_readbuffer_ptr = (mga_readbuffer == MGA_FRONTBUFFER) ? mga_frontbuffer_ptr : mga_backbuffer_ptr;
+}
+
+
+
+/* Desc: set WRITE buffer
+ *
+ * In : either FRONT or BACK buffer
+ * Out :
+ *
+ * Note:
+ */
+void mga_set_writebuffer (int buffer)
+{
+ mga_writebuffer = buffer;
+
+ mga_writebuffer_ptr = (mga_writebuffer == MGA_FRONTBUFFER) ? mga_frontbuffer_ptr : mga_backbuffer_ptr;
+
+ mga_select();
+ mga_fifo(1);
+ mga_outl(M_YDSTORG, mga_writebuffer_ptr);
+
+ __operation = OP_NONE;
+}
+
+
+
+/* Desc: swap buffers
+ *
+ * In : number of vertical retraces to wait
+ * Out :
+ *
+ * Note:
+ */
+void mga_swapbuffers (int swapinterval)
+{
+ /* flip the buffers */
+ mga_backbuffer_ptr ^= __pagewidth;
+ mga_frontbuffer_ptr ^= __pagewidth;
+
+ /* update READ/WRITE pointers */
+ mga_set_readbuffer(mga_readbuffer);
+ mga_set_writebuffer(mga_writebuffer);
+
+ /* make sure we always see the FRONT buffer */
+ mga_display_start(mga_frontbuffer_ptr, __scrollx, __scrolly, swapinterval);
+}
+
+
+
+/* Desc: color composition (w/o ALPHA)
+ *
+ * In : array of integers (R, G, B)
+ * Out : color
+ *
+ * Note: -
+ */
+static __inline int _mga_mixrgb8 (const unsigned char rgb[])
+{
+ return (rgb[0]&0xe0)|((rgb[1]>>5)<<2)|(rgb[2]>>6);
+}
+static __inline int _mga_mixrgb15 (const unsigned char rgb[])
+{
+ return ((rgb[0]>>3)<<10)|((rgb[1]>>3)<<5)|(rgb[2]>>3);
+}
+static __inline int _mga_mixrgb16 (const unsigned char rgb[])
+{
+ return ((rgb[0]>>3)<<11)|((rgb[1]>>2)<<5)|(rgb[2]>>3);
+}
+static __inline int _mga_mixrgb32 (const unsigned char rgb[])
+{
+ return (rgb[0]<<16)|(rgb[1]<<8)|(rgb[2]);
+}
+
+
+
+/* Desc: color composition (w/o ALPHA) + replication
+ *
+ * In : array of integers (R, G, B)
+ * Out : color
+ *
+ * Note: -
+ */
+static int _mga_mixrgb8_full (const unsigned char rgb[])
+{
+ int color = _mga_mixrgb8(rgb);
+ color |= color<<8;
+ return (color<<16) | color;
+}
+static int _mga_mixrgb15_full (const unsigned char rgb[])
+{
+ int color = _mga_mixrgb15(rgb);
+ return (color<<16) | color;
+}
+static int _mga_mixrgb16_full (const unsigned char rgb[])
+{
+ int color = _mga_mixrgb16(rgb);
+ return (color<<16) | color;
+}
+#define _mga_mixrgb32_full _mga_mixrgb32
+
+
+
+/* Desc: putpixel
+ *
+ * In : pixel offset, pixel value
+ * Out : -
+ *
+ * Note: uses current write buffer
+ */
+static void _mga_putpixel8 (unsigned int offset, int color)
+{
+ hwptr_pokeb(mgaptr.linear_map, mga_writebuffer_ptr + offset, color);
+}
+#define _mga_putpixel15 _mga_putpixel16
+static void _mga_putpixel16 (unsigned int offset, int color)
+{
+ hwptr_pokew(mgaptr.linear_map, (mga_writebuffer_ptr + offset) * 2, color);
+}
+static void _mga_putpixel32 (unsigned int offset, int color)
+{
+ hwptr_pokel(mgaptr.linear_map, (mga_writebuffer_ptr + offset) * 4, color);
+}
+
+
+
+/* Desc: pixel retrieval
+ *
+ * In : pixel offset
+ * Out : pixel value
+ *
+ * Note: uses current read buffer
+ */
+static __inline int _mga_getpixel8 (unsigned int offset)
+{
+ return hwptr_peekb(mgaptr.linear_map, mga_readbuffer_ptr + offset);
+}
+#define _mga_getpixel15 _mga_getpixel16
+static __inline int _mga_getpixel16 (unsigned int offset)
+{
+ return hwptr_peekw(mgaptr.linear_map, (mga_readbuffer_ptr + offset) * 2);
+}
+static __inline int _mga_getpixel32 (unsigned int offset)
+{
+ return hwptr_peekl(mgaptr.linear_map, (mga_readbuffer_ptr + offset) * 4);
+}
+
+
+
+/* Desc: color decomposition
+ *
+ * In : pixel offset, array of integers to hold color components (R, G, B, A)
+ * Out : -
+ *
+ * Note: uses current read buffer
+ */
+static void _mga_getrgba8 (unsigned int offset, unsigned char rgba[4])
+{
+ int c = _mga_getpixel8(offset);
+ rgba[0] = _rgb_scale_3[(c >> 5) & 0x7];
+ rgba[1] = _rgb_scale_3[(c >> 2) & 0x7];
+ rgba[2] = _rgb_scale_2[c & 0x3];
+ rgba[3] = 255;
+}
+static void _mga_getrgba15 (unsigned int offset, unsigned char rgba[4])
+{
+ int c = _mga_getpixel15(offset);
+ rgba[0] = _rgb_scale_5[(c >> 10) & 0x1F];
+ rgba[1] = _rgb_scale_5[(c >> 5) & 0x1F];
+ rgba[2] = _rgb_scale_5[c & 0x1F];
+ rgba[3] = 255;
+}
+static void _mga_getrgba16 (unsigned int offset, unsigned char rgba[4])
+{
+ int c = _mga_getpixel16(offset);
+ rgba[0] = _rgb_scale_5[(c >> 11) & 0x1F];
+ rgba[1] = _rgb_scale_6[(c >> 5) & 0x3F];
+ rgba[2] = _rgb_scale_5[c & 0x1F];
+ rgba[3] = 255;
+}
+static void _mga_getrgba32 (unsigned int offset, unsigned char rgba[4])
+{
+ int c = _mga_getpixel32(offset);
+ rgba[0] = c >> 16;
+ rgba[1] = c >> 8;
+ rgba[2] = c;
+ rgba[3] = c >> 24;
+}
+
+
+
+/* Desc: RGB flat line
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_draw_line_rgb_flat (const MGAvertex *v1, const MGAvertex *v2)
+{
+ unsigned long color;
+ int x1 = v1->win[0];
+ int y1 = v1->win[1];
+ int x2 = v2->win[0];
+ int y2 = v2->win[1];
+
+ if ((x1 == x2) && (y1 == y2)) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWLINE) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWLINE);
+ __operation = OP_DRAWLINE;
+ }
+
+ color = mga_mixrgb_full(v2->color);
+
+ /* draw the line */
+ mga_fifo(3);
+ mga_outl(M_FCOL, color);
+ mga_outl(M_XYSTRT, (y1<<16) | x1);
+ mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
+}
+
+
+
+/* Desc: RGB flat Z-less line
+ *
+ * In :
+ * Out :
+ *
+ * Note: I never figured out "diagonal increments"
+ */
+void mga_draw_line_rgb_flat_zless (const MGAvertex *v1, const MGAvertex *v2)
+{
+ int z1, dz;
+ int x1 = v1->win[0];
+ int y1 = v1->win[1];
+ int x2 = v2->win[0];
+ int y2 = v2->win[1];
+ int dx = abs(x2 - x1);
+ int dy = abs(y2 - y1);
+
+ if ((dx == 0) && (dy == 0)) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWLINE_ZI) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWLINE_ZI);
+ __operation = OP_DRAWLINE_ZI;
+ }
+
+ if (dx < dy) {
+ dx = dy;
+ }
+
+ z1 = v1->win[2] << 15;
+ dz = ((v2->win[2] << 15) - z1) / dx;
+
+ /* draw the line */
+ mga_fifo(14);
+ mga_outl(M_DR0, z1);
+ mga_outl(M_DR2, dz);
+ mga_outl(M_DR3, dz);
+ mga_outl(M_DR4, v2->color[0] << 15);
+ mga_outl(M_DR6, 0);
+ mga_outl(M_DR7, 0);
+ mga_outl(M_DR8, v2->color[1] << 15);
+ mga_outl(M_DR10, 0);
+ mga_outl(M_DR11, 0);
+ mga_outl(M_DR12, v2->color[2] << 15);
+ mga_outl(M_DR14, 0);
+ mga_outl(M_DR15, 0);
+ mga_outl(M_XYSTRT, (y1<<16) | x1);
+ mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
+}
+
+
+
+/* Desc: RGB iterated line
+ *
+ * In :
+ * Out :
+ *
+ * Note: I never figured out "diagonal increments"
+ */
+void mga_draw_line_rgb_iter (const MGAvertex *v1, const MGAvertex *v2)
+{
+ int r1, g1, b1;
+ int dr, dg, db;
+ int x1 = v1->win[0];
+ int y1 = v1->win[1];
+ int x2 = v2->win[0];
+ int y2 = v2->win[1];
+ int dx = abs(x2 - x1);
+ int dy = abs(y2 - y1);
+
+ if ((dx == 0) && (dy == 0)) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWLINE_I) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWLINE_I);
+ __operation = OP_DRAWLINE_I;
+ }
+
+ if (dx < dy) {
+ dx = dy;
+ }
+
+ r1 = v1->color[0] << 15;
+ g1 = v1->color[1] << 15;
+ b1 = v1->color[2] << 15;
+ dr = ((v2->color[0] << 15) - r1) / dx;
+ dg = ((v2->color[1] << 15) - g1) / dx;
+ db = ((v2->color[2] << 15) - b1) / dx;
+
+ /* draw the line */
+ mga_fifo(11);
+ mga_outl(M_DR4, r1);
+ mga_outl(M_DR6, dr);
+ mga_outl(M_DR7, dr);
+ mga_outl(M_DR8, g1);
+ mga_outl(M_DR10, dg);
+ mga_outl(M_DR11, dg);
+ mga_outl(M_DR12, b1);
+ mga_outl(M_DR14, db);
+ mga_outl(M_DR15, db);
+ mga_outl(M_XYSTRT, (y1<<16) | x1);
+ mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
+}
+
+
+
+/* Desc: RGB iterated Z-less line
+ *
+ * In :
+ * Out :
+ *
+ * Note: I never figured out "diagonal increments"
+ */
+void mga_draw_line_rgb_iter_zless (const MGAvertex *v1, const MGAvertex *v2)
+{
+ int z1, dz;
+ int r1, g1, b1;
+ int dr, dg, db;
+ int x1 = v1->win[0];
+ int y1 = v1->win[1];
+ int x2 = v2->win[0];
+ int y2 = v2->win[1];
+ int dx = abs(x2 - x1);
+ int dy = abs(y2 - y1);
+
+ if ((dx == 0) && (dy == 0)) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWLINE_ZI) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWLINE_ZI);
+ __operation = OP_DRAWLINE_ZI;
+ }
+
+ if (dx < dy) {
+ dx = dy;
+ }
+
+ z1 = v1->win[2] << 15;
+ dz = ((v2->win[2] << 15) - z1) / dx;
+
+ r1 = v1->color[0] << 15;
+ g1 = v1->color[1] << 15;
+ b1 = v1->color[2] << 15;
+ dr = ((v2->color[0] << 15) - r1) / dx;
+ dg = ((v2->color[1] << 15) - g1) / dx;
+ db = ((v2->color[2] << 15) - b1) / dx;
+
+ /* draw the line */
+ mga_fifo(14);
+ mga_outl(M_DR0, z1);
+ mga_outl(M_DR2, dz);
+ mga_outl(M_DR3, dz);
+ mga_outl(M_DR4, r1);
+ mga_outl(M_DR6, dr);
+ mga_outl(M_DR7, dr);
+ mga_outl(M_DR8, g1);
+ mga_outl(M_DR10, dg);
+ mga_outl(M_DR11, dg);
+ mga_outl(M_DR12, b1);
+ mga_outl(M_DR14, db);
+ mga_outl(M_DR15, db);
+ mga_outl(M_XYSTRT, (y1<<16) | x1);
+ mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
+}
+
+
+
+/* Desc: RGB flat triangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+#define TAG mga_draw_tri_rgb_flat
+#define CULL
+#define SETUP_CODE \
+ if (__operation != OP_DRAWTRAP) { \
+ mga_fifo(1); \
+ mga_outl(M_DWGCTL, OP_DRAWTRAP); \
+ __operation = OP_DRAWTRAP; \
+ }
+#include "m_ttemp.h"
+
+
+
+/* Desc: RGB flat Z-less triangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+#define TAG mga_draw_tri_rgb_flat_zless
+#define CULL
+#define INTERP_Z
+#define SETUP_CODE \
+ if (__operation != OP_DRAWTRAP_ZI) { \
+ mga_fifo(1); \
+ mga_outl(M_DWGCTL, OP_DRAWTRAP_ZI); \
+ __operation = OP_DRAWTRAP_ZI; \
+ }
+#include "m_ttemp.h"
+
+
+
+/* Desc: RGB iterated triangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+#define TAG mga_draw_tri_rgb_iter
+#define CULL
+#define INTERP_RGB
+#define SETUP_CODE \
+ if (__operation != OP_DRAWTRAP_I) { \
+ mga_fifo(1); \
+ mga_outl(M_DWGCTL, OP_DRAWTRAP_I); \
+ __operation = OP_DRAWTRAP_I; \
+ }
+#include "m_ttemp.h"
+
+
+
+/* Desc: RGB iterated Z-less triangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+#define TAG mga_draw_tri_rgb_iter_zless
+#define CULL
+#define INTERP_Z
+#define INTERP_RGB
+#define SETUP_CODE \
+ if (__operation != OP_DRAWTRAP_ZI) { \
+ mga_fifo(1); \
+ mga_outl(M_DWGCTL, OP_DRAWTRAP_ZI); \
+ __operation = OP_DRAWTRAP_ZI; \
+ }
+#include "m_ttemp.h"
+
+
+
+/* Desc: RGB flat rectangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_draw_rect_rgb_flat (int left, int top, int width, int height, int color)
+{
+ if (__bpp == 8) {
+ color |= color << 8;
+ }
+ if (__bpp <= 16) {
+ color |= color << 16;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT) {
+
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT);
+ __operation = OP_DRAWRECT;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(3);
+ mga_outl(M_FCOL, color);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+}
+
+
+
+/* Desc: 32RGB textured span
+ *
+ * In :
+ * Out :
+ *
+ * Note: 0 <= width <= 7*1024
+ */
+void mga_draw_span_rgb_tx32 (int left, int top, int width, const unsigned long *bitmap)
+{
+ int i;
+
+ if (!width) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT_TX32BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT_TX32BGR);
+ __operation = OP_DRAWRECT_TX32BGR;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(2);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | 1);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ do {
+ mga_outl(i, *bitmap);
+ bitmap++;
+ i += 4;
+ } while (--width);
+}
+
+
+
+/* Desc: 24RGB textured span
+ *
+ * In :
+ * Out :
+ *
+ * Note: 0 <= width <= 7*1024
+ */
+void mga_draw_span_rgb_tx24 (int left, int top, int width, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT_TX24BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT_TX24BGR);
+ __operation = OP_DRAWRECT_TX24BGR;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(2);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | 1);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width = (width * 3 + 3) / 4;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: 32RGB textured rectangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_draw_rect_rgb_tx32 (int left, int top, int width, int height, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT_TX32BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT_TX32BGR);
+ __operation = OP_DRAWRECT_TX32BGR;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(2);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width *= height;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: 24RGB textured rectangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_draw_rect_rgb_tx24 (int left, int top, int width, int height, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT_TX24BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT_TX24BGR);
+ __operation = OP_DRAWRECT_TX24BGR;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(2);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width = (width * height * 3 + 3) / 4;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: copy 32RGB image to screen
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_iload_32RGB (int left, int top, int width, int height, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_ILOAD_32BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_ILOAD_32BGR);
+ __operation = OP_ILOAD_32BGR;
+ }
+
+ /* draw the bitmap */
+ mga_fifo(5);
+ mga_outl(M_AR0, width-1);
+ mga_outl(M_AR3, 0);
+ mga_outl(M_AR5, 0);
+ mga_outl(M_FXBNDRY, ((left+width-1)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width *= height;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: copy 24RGB image to screen
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_iload_24RGB (int left, int top, int width, int height, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_ILOAD_24BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_ILOAD_24BGR);
+ __operation = OP_ILOAD_24BGR;
+ }
+
+ /* draw the bitmap */
+ mga_fifo(5);
+ mga_outl(M_AR0, width-1);
+ mga_outl(M_AR3, 0);
+ mga_outl(M_AR5, 0);
+ mga_outl(M_FXBNDRY, ((left+width-1)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width = (width * height * 3 + 3) / 4;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: get Z-buffer value
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+unsigned short mga_getz (int offset)
+{
+ return hwptr_peekw(mgaptr.linear_map, zorg + (mga_readbuffer_ptr + offset) * 2);
+}
+
+
+
+/* Desc: put Z-buffer value
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_setz (int offset, unsigned short z)
+{
+ hwptr_pokew(mgaptr.linear_map, zorg + (mga_writebuffer_ptr + offset) * 2, z);
+}
+
+
+
+/* Desc: clear Z-buffer
+ *
+ * In :
+ * Out :
+ *
+ * Note: uses current write buffer
+ */
+static void _mga_clear_zed (int left, int top, int width, int height, unsigned short z)
+{
+ if (__bpp == 16) {
+ /* GPU store (high bandwidth)
+ * Hack alert:
+ * can cause problems with concurrent FB accesses
+ */
+ mga_select();
+ mga_fifo(1);
+ mga_outl(M_YDSTORG, mga_writebuffer_ptr + zorg/2);
+ mga_draw_rect_rgb_flat(left, top, width, height, z);
+ mga_fifo(1);
+ mga_outl(M_YDSTORG, mga_writebuffer_ptr);
+ } else {
+ /* CPU store */
+ unsigned long i, zz = (z<<16) | z;
+ unsigned long ofs = zorg + (top * __pixwidth + left + mga_writebuffer_ptr) * 2;
+ hwptr_select(mgaptr.linear_map);
+ while (height--) {
+ i = width/2;
+ while (i--) {
+ hwptr_nspokel(mgaptr.linear_map, ofs, zz);
+ ofs += 4;
+ }
+ if (width & 1) {
+ hwptr_nspokew(mgaptr.linear_map, ofs, z);
+ ofs += 2;
+ }
+ ofs += (__pixwidth - width) * 2;
+ }
+ }
+}
+
+
+
+/* Desc: clear color- and Z-buffer
+ *
+ * In : front = clear front buffer
+ * back = clear back buffer
+ * zed = clear depth buffer
+ * left = leftmost pixel to be cleared
+ * top = starting line
+ * width = number of pixels
+ * height = number of lines
+ * color = color to clear to
+ * z = z value (ignored if zed==0)
+ * Out :
+ *
+ * Note:
+ */
+void mga_clear (int front, int back, int zed, int left, int top, int width, int height, int color, unsigned short z)
+{
+ if (front) {
+ if (mga_writebuffer == MGA_FRONTBUFFER) {
+ mga_draw_rect_rgb_flat(left, top, width, height, color);
+ if (zed) {
+ _mga_clear_zed(left, top, width, height, z);
+ }
+ front = 0;
+ }
+ }
+ if (back) {
+ if (mga_writebuffer == MGA_BACKBUFFER) {
+ mga_draw_rect_rgb_flat(left, top, width, height, color);
+ if (zed) {
+ _mga_clear_zed(left, top, width, height, z);
+ }
+ back = 0;
+ }
+ }
+ if (front) {
+ int old = mga_writebuffer;
+ mga_set_writebuffer(MGA_FRONTBUFFER);
+ mga_draw_rect_rgb_flat(left, top, width, height, color);
+ if (zed) {
+ _mga_clear_zed(left, top, width, height, z);
+ }
+ mga_set_writebuffer(old);
+ front = 0;
+ }
+ if (back) {
+ int old = mga_writebuffer;
+ mga_set_writebuffer(MGA_BACKBUFFER);
+ mga_draw_rect_rgb_flat(left, top, width, height, color);
+ if (zed) {
+ _mga_clear_zed(left, top, width, height, z);
+ }
+ mga_set_writebuffer(old);
+ back = 0;
+ }
+}
+
+
+
+/* Desc: Attempts to enter specified video mode.
+ *
+ * In : ptr to mode structure, number of pages, Z-buffer request, refresh rate
+ * Out : 0 if success
+ *
+ * Note: also set up the accelerator engine
+ */
+int mga_open (int width, int height, int bpp, int buffers, int zbuffer, int refresh)
+{
+ static int mill_strides[] = { 640, 768, 800, 960, 1024, 1152, 1280, 1600, 1920, 2048, 0 };
+ unsigned int i, used;
+ MGA_MODE *p;
+
+ if (mga_hw_init(&vram, &interleave, card_name) == 0) {
+ return -1;
+ }
+
+ if ((p = mga_mode_find(width, height, bpp)) == NULL) {
+ return -1;
+ }
+
+ __bpp = p->bpp;
+ __width = __pagewidth = p->xres;
+ __height = p->yres;
+
+ if (buffers > 1) {
+ __pagewidth = _mga_fix_scans(__pagewidth);
+ __pixwidth = __pagewidth * buffers;
+ } else {
+ __pixwidth = __pagewidth;
+ __pixwidth = _mga_fix_scans(__pixwidth);
+ }
+
+ for (i=0; mill_strides[i]; i++) {
+ if (__pixwidth <= mill_strides[i]) {
+ __pixwidth = mill_strides[i];
+ break;
+ }
+ }
+
+ __bypp = (__bpp+7)/8;
+ __bytwidth = __pixwidth * __bypp;
+
+ /* compute used memory: framebuffer + zbuffer */
+ used = __bytwidth * __height;
+ if (zbuffer) {
+ zorg = (used + 511) & ~511;
+ /* Hack alert:
+ * a 16-bit Z-buffer size is (stride_in_pixels * number_of_lines * 2)
+ * We cannot mess with the Z-buffer width, but we might decrease the
+ * number of lines, if the user requests less than (screen_height). For
+ * example with a 2MB card, one can have 640x480x16 display with 2 color
+ * buffers and Z-buffer if the maximum requested height is 339:
+ * Total = (640*480 * 2 + 640*339 * 2) * 2
+ * However, this means the user must not write beyond the window's height
+ * and if we'll ever implement moveable windows, we'll have to reconsider
+ * this hack.
+ */
+#if 1
+ __zheight = height; /* smaller */
+ used = zorg + __pixwidth * 2 * __zheight;
+#else
+ __zheight = __height;
+ used = zorg + __pixwidth * 2 * __zheight;
+#endif
+ }
+
+ if (mill_strides[i] && (vram>=used)) {
+ /* enter mode */
+ mga_mode_switch(p, refresh);
+ /* change the scan line length */
+ _mga_ralter(M_CRTC_INDEX, 0x14, 0x40, 0); /* disable DWORD */
+ _mga_ralter(M_CRTC_INDEX, 0x17, 0x40, 0x40); /* wbmode = BYTE */
+ if (interleave) {
+ _mga_rwrite(M_CRTC_INDEX, 0x13, __bytwidth/16);
+ _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x30, ((__bytwidth/16)>>4)&0x30);
+ } else {
+ _mga_rwrite(M_CRTC_INDEX, 0x13, __bytwidth/8);
+ _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x30, ((__bytwidth/8)>>4)&0x30);
+ }
+ } else {
+ return -1;
+ }
+
+ /* setup buffers */
+ mga_frontbuffer_ptr = 0;
+ if (buffers > 1) {
+ mga_backbuffer_ptr = __pagewidth;
+ mga_set_readbuffer(MGA_BACKBUFFER);
+ mga_set_writebuffer(MGA_BACKBUFFER);
+ } else {
+ mga_backbuffer_ptr = 0;
+ mga_set_readbuffer(MGA_FRONTBUFFER);
+ mga_set_writebuffer(MGA_FRONTBUFFER);
+ }
+ mga_display_start(mga_frontbuffer_ptr, __scrollx = 0, __scrolly = 0, 1);
+
+ /* set up the accelerator engine */
+ mga_select();
+
+ mga_fifo(8);
+ mga_outl(M_PITCH, __pixwidth);
+ mga_outl(M_PLNWT, 0xFFFFFFFF);
+ mga_outl(M_OPMODE, M_DMA_BLIT);
+ mga_outl(M_CXBNDRY, 0xFFFF0000);
+ mga_outl(M_YTOP, 0x00000000);
+ mga_outl(M_YBOT, 0x007FFFFF);
+ mga_outl(M_ZORG, zorg);
+
+#define INITPTR(bpp) \
+ mga_putpixel = _mga_putpixel##bpp; \
+ mga_getrgba = _mga_getrgba##bpp; \
+ mga_getpixel = _mga_getpixel##bpp; \
+ mga_mixrgb = _mga_mixrgb##bpp; \
+ mga_mixrgb_full = _mga_mixrgb##bpp##_full
+
+ switch (__bpp) {
+ case 8:
+ mga_outl(M_MACCESS, 0);
+ INITPTR(8);
+ break;
+ case 15:
+ mga_outl(M_MACCESS, 0x80000001);
+ INITPTR(15);
+ break;
+ case 16:
+ mga_outl(M_MACCESS, 1);
+ INITPTR(16);
+ break;
+ case 32:
+ mga_outl(M_MACCESS, 2);
+ INITPTR(32);
+ break;
+ }
+
+#undef INITPTR
+
+ /* disable VGA aperture */
+ i = mga_inb(M_MISC_R);
+ mga_outb(M_MISC_W, i & ~2);
+
+ /* clear Z-buffer (if any) */
+ if (zbuffer) {
+ unsigned long ofs = zorg;
+ unsigned long len = zorg + __pixwidth * 2 * __zheight;
+
+ hwptr_select(mgaptr.linear_map);
+ for (; ofs<len; ofs+=4) {
+ hwptr_nspokel(mgaptr.linear_map, ofs, -1);
+ }
+ }
+
+ return 0;
+}
+
+
+
+/* Desc:
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_close (int restore, int unmap)
+{
+ if (restore) {
+ mga_mode_restore();
+ }
+ if (unmap) {
+ mga_hw_fini();
+ }
+}
+
+
+
+/* Desc: state retrieval
+ *
+ * In : parameter name, ptr to storage
+ * Out : 0 if request successfully processed
+ *
+ * Note: -
+ */
+int mga_get (int pname, int *params)
+{
+ switch (pname) {
+ case MGA_GET_CARD_NAME:
+ strcat(strcpy((char *)params, "Matrox "), card_name);
+ break;
+ case MGA_GET_VRAM:
+ params[0] = vram;
+ break;
+ case MGA_GET_CI_PREC:
+ params[0] = 0;
+ break;
+ case MGA_GET_HPIXELS:
+ params[0] = __pixwidth;
+ break;
+ case MGA_GET_SCREEN_SIZE:
+ params[0] = __width;
+ params[1] = __height;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
diff --git a/src/mesa/drivers/dos/mga/mga.h b/src/mesa/drivers/dos/mga/mga.h
index d84fe72e269..0c074fa978f 100644
--- a/src/mesa/drivers/dos/mga/mga.h
+++ b/src/mesa/drivers/dos/mga/mga.h
@@ -1,91 +1,91 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef MGA_H_included
-#define MGA_H_included
-
-#define MGA_GET_CARD_NAME 0x0100
-#define MGA_GET_VRAM 0x0101
-#define MGA_GET_CI_PREC 0x0200
-#define MGA_GET_HPIXELS 0x0201
-#define MGA_GET_SCREEN_SIZE 0x0202
-
-int mga_open (int width, int height, int bpp, int buffers, int zbuffer, int refresh);
-void mga_clear (int front, int back, int zed, int left, int top, int width, int height, int color, unsigned short z);
-int mga_get (int pname, int *params);
-void mga_close (int restore, int unmap);
-
-extern void (*mga_putpixel) (unsigned int offset, int color);
-extern int (*mga_getpixel) (unsigned int offset);
-extern void (*mga_getrgba) (unsigned int offset, unsigned char rgba[4]);
-extern int (*mga_mixrgb) (const unsigned char rgb[]);
-
-#define MGA_BACKBUFFER !0
-#define MGA_FRONTBUFFER 0
-void mga_set_readbuffer (int buffer);
-void mga_set_writebuffer (int buffer);
-void mga_swapbuffers (int swapinterval);
-
-unsigned short mga_getz (int offset);
-void mga_setz (int offset, unsigned short z);
-
-void mga_wait_idle (void);
-
-/*
- * vertex structure, used for primitive rendering
- */
-typedef struct {
- int win[4]; /* X, Y, Z, ? */
- unsigned char color[4]; /* R, G, B, A */
-} MGAvertex;
-
-void mga_draw_line_rgb_flat (const MGAvertex *v1, const MGAvertex *v2);
-void mga_draw_line_rgb_flat_zless (const MGAvertex *v1, const MGAvertex *v2);
-void mga_draw_line_rgb_iter (const MGAvertex *v1, const MGAvertex *v2);
-void mga_draw_line_rgb_iter_zless (const MGAvertex *v1, const MGAvertex *v2);
-
-void mga_draw_tri_rgb_flat (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
-void mga_draw_tri_rgb_flat_zless (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
-void mga_draw_tri_rgb_iter (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
-void mga_draw_tri_rgb_iter_zless (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
-
-void mga_draw_rect_rgb_flat (int left, int top, int width, int height, int color);
-void mga_draw_rect_rgb_tx32 (int left, int top, int width, int height, const unsigned long *bitmap);
-void mga_draw_rect_rgb_tx24 (int left, int top, int width, int height, const unsigned long *bitmap);
-void mga_draw_span_rgb_tx32 (int left, int top, int width, const unsigned long *bitmap);
-void mga_draw_span_rgb_tx24 (int left, int top, int width, const unsigned long *bitmap);
-
-void mga_iload_32RGB (int left, int top, int width, int height, const unsigned long *bitmap);
-void mga_iload_24RGB (int left, int top, int width, int height, const unsigned long *bitmap);
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef MGA_H_included
+#define MGA_H_included
+
+#define MGA_GET_CARD_NAME 0x0100
+#define MGA_GET_VRAM 0x0101
+#define MGA_GET_CI_PREC 0x0200
+#define MGA_GET_HPIXELS 0x0201
+#define MGA_GET_SCREEN_SIZE 0x0202
+
+int mga_open (int width, int height, int bpp, int buffers, int zbuffer, int refresh);
+void mga_clear (int front, int back, int zed, int left, int top, int width, int height, int color, unsigned short z);
+int mga_get (int pname, int *params);
+void mga_close (int restore, int unmap);
+
+extern void (*mga_putpixel) (unsigned int offset, int color);
+extern int (*mga_getpixel) (unsigned int offset);
+extern void (*mga_getrgba) (unsigned int offset, unsigned char rgba[4]);
+extern int (*mga_mixrgb) (const unsigned char rgb[]);
+
+#define MGA_BACKBUFFER !0
+#define MGA_FRONTBUFFER 0
+void mga_set_readbuffer (int buffer);
+void mga_set_writebuffer (int buffer);
+void mga_swapbuffers (int swapinterval);
+
+unsigned short mga_getz (int offset);
+void mga_setz (int offset, unsigned short z);
+
+void mga_wait_idle (void);
+
+/*
+ * vertex structure, used for primitive rendering
+ */
+typedef struct {
+ int win[4]; /* X, Y, Z, ? */
+ unsigned char color[4]; /* R, G, B, A */
+} MGAvertex;
+
+void mga_draw_line_rgb_flat (const MGAvertex *v1, const MGAvertex *v2);
+void mga_draw_line_rgb_flat_zless (const MGAvertex *v1, const MGAvertex *v2);
+void mga_draw_line_rgb_iter (const MGAvertex *v1, const MGAvertex *v2);
+void mga_draw_line_rgb_iter_zless (const MGAvertex *v1, const MGAvertex *v2);
+
+void mga_draw_tri_rgb_flat (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
+void mga_draw_tri_rgb_flat_zless (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
+void mga_draw_tri_rgb_iter (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
+void mga_draw_tri_rgb_iter_zless (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
+
+void mga_draw_rect_rgb_flat (int left, int top, int width, int height, int color);
+void mga_draw_rect_rgb_tx32 (int left, int top, int width, int height, const unsigned long *bitmap);
+void mga_draw_rect_rgb_tx24 (int left, int top, int width, int height, const unsigned long *bitmap);
+void mga_draw_span_rgb_tx32 (int left, int top, int width, const unsigned long *bitmap);
+void mga_draw_span_rgb_tx24 (int left, int top, int width, const unsigned long *bitmap);
+
+void mga_iload_32RGB (int left, int top, int width, int height, const unsigned long *bitmap);
+void mga_iload_24RGB (int left, int top, int width, int height, const unsigned long *bitmap);
+
+#endif
diff --git a/src/mesa/drivers/dos/mga/mga_hw.c b/src/mesa/drivers/dos/mga/mga_hw.c
index 08c1d7e54a4..b2e7d5cc925 100644
--- a/src/mesa/drivers/dos/mga/mga_hw.c
+++ b/src/mesa/drivers/dos/mga/mga_hw.c
@@ -1,416 +1,416 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W HW mapping
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <crt0.h>
-#include <dpmi.h>
-#include <pc.h>
-#include <string.h>
-#include <sys/nearptr.h>
-#include <sys/segments.h>
-
-#include "../internal.h"
-#include "mga_reg.h"
-#include "mga_hw.h"
-
-
-
-/* Hack alert:
- * these should really be externs
- */
-/* PCI access routines */
-static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle);
-static unsigned long pci_read_long (int handle, int index);
-static void pci_write_long (int handle, int index, unsigned long value);
-
-
-
-/* PCI device identifiers */
-#define MATROX_VENDOR_ID 0x102B
-
-typedef enum {
- MATROX_MILL_ID = 0x0519
-} MATROX_ID;
-
-static MATROX_ID matrox_id_list[] = {
- MATROX_MILL_ID,
- 0
-};
-
-
-
-/* internal hardware data structures */
-#if !MGA_FARPTR
-static int dirty;
-#endif
-static int bus_id;
-static unsigned long reg40;
-static unsigned long io_mem_base[4], linear_base;
-static unsigned long io_mem_size[4], linear_size;
-static MATROX_ID matrox_id;
-
-
-
-/* interface structures containing hardware pointer data */
-MGA_HWPTR mgaptr;
-
-
-
-/* Desc: create MMAP
- *
- * In :
- * Out :
- *
- * Note:
- */
-static int _create_mmap (__dpmi_paddr *m, unsigned long base, unsigned long size)
-{
-#if MGA_FARPTR
- int sel;
- if (_create_selector(&sel, base, size)) {
- return -1;
- }
- m->selector = sel;
- m->offset32 = 0;
-#else
- m->selector = _my_ds();
- if (_create_linear_mapping(&m->offset32, base, size)) {
- return -1;
- }
- m->offset32 -= __djgpp_base_address;
-#endif
- return 0;
-}
-
-
-
-/* Desc: destroy MMAP
- *
- * In :
- * Out :
- *
- * Note:
- */
-static void _destroy_mmap (__dpmi_paddr *m)
-{
-#if MGA_FARPTR
- int sel = m->selector;
- _remove_selector(&sel);
-#else
- m->offset32 += __djgpp_base_address;
- _remove_linear_mapping(&m->offset32);
-#endif
- m->selector = 0;
- m->offset32 = 0;
-}
-
-
-
-/* Desc: Counts amount of installed RAM
- *
- * In :
- * Out :
- *
- * Note:
- */
-static int _mga_get_vram (MATROX_ID chip, unsigned long base)
-{
- int ProbeSize = 8;
- int SizeFound = 2;
- unsigned char tmp;
- int i;
- __dpmi_paddr fb;
-
- switch (chip) {
- case MATROX_MILL_ID:
- ProbeSize = 8;
- break;
- }
-
- if (_create_mmap(&fb, base, ProbeSize*1024*1024)) {
- return 0;
- }
-
- /* turn MGA mode on - enable linear frame buffer (CRTCEXT3) */
- mga_select();
- mga_outb(M_CRTC_EXT_INDEX, 3);
- tmp = mga_inb(M_CRTC_EXT_DATA);
- mga_outb(M_CRTC_EXT_DATA, tmp | M_MGAMODE);
-
- /* write, read and compare method */
- for (i=ProbeSize; i>2; i-= 2) {
- hwptr_pokeb(fb, i*1024*1024 - 1, 0xAA);
- mga_select();
- mga_outb(M_CRTC_INDEX, 0); /* flush the cache */
- mga_inl(M_STATUS); /* delay */
- mga_inl(M_STATUS); /* delay */
- mga_inl(M_STATUS); /* delay */
- if (hwptr_peekb(fb, i*1024*1024 - 1) == 0xAA) {
- SizeFound = i;
- break;
- }
- }
-
- /* restore CRTCEXT3 state */
- mga_select();
- mga_outb(M_CRTC_EXT_INDEX, 3);
- mga_outb(M_CRTC_EXT_DATA, tmp);
-
- _destroy_mmap(&fb);
-
- return SizeFound*1024*1024;
-}
-
-
-
-/* Desc: Frees all resources allocated by MGA init code.
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_hw_fini (void)
-{
- int i;
-
- pci_write_long(bus_id, 0x40, reg40);
-
- for (i=0; i<4; i++) {
- _destroy_mmap(&mgaptr.io_mem_map[i]);
- }
-
- _destroy_mmap(&mgaptr.linear_map);
-
-#if !MGA_FARPTR
- if (dirty) {
- __djgpp_nearptr_disable();
- dirty = FALSE;
- }
-#endif
-
- matrox_id = 0;
-}
-
-
-
-/* Desc: Attempts to detect MGA.
- *
- * In :
- * Out :
- *
- * Note: The first thing ever to be called. This is in charge of filling in
- * the driver header with all the required information and function
- * pointers. We do not yet have access to the video memory, so we can't
- * talk directly to the card.
- */
-int mga_hw_init (unsigned long *vram, int *interleave, char *name)
-{
- int i;
- unsigned long pci_base[2];
-
- if (matrox_id) {
- return matrox_id;
- }
-
-#if !MGA_FARPTR
- /* enable nearptr access */
- if (_crt0_startup_flags & _CRT0_FLAG_NEARPTR) {
- dirty = FALSE;
- } else {
- if (__djgpp_nearptr_enable() == 0)
- return NULL;
-
- dirty = TRUE;
- }
-#endif
-
- /* find PCI device */
- matrox_id = 0;
-
- for (bus_id=0, i=0; matrox_id_list[i]; i++) {
- if (pci_find_device(matrox_id_list[i], MATROX_VENDOR_ID, 0, &bus_id)) {
- matrox_id = matrox_id_list[i];
- break;
- }
- }
-
- /* set up the card name */
- switch (matrox_id) {
- case MATROX_MILL_ID:
- if (name) strcpy(name, "Millennium");
- break;
- default:
- matrox_id = 0;
- return -1;
- }
-
- reg40 = pci_read_long(bus_id, 0x40);
-#if 0 /* overclock a little :) */
- {
- int rfhcnt = (reg40 >> 16) & 0xF;
- if ((reg40 & 0x200000) && (rfhcnt < 0xC)) {
- pci_write_long(bus_id, 0x40, (reg40 & 0xFFF0FFFF) | 0x000C0000);
- }
- }
-#endif
-
- /* read hardware configuration data */
- for (i=0; i<2; i++)
- pci_base[i] = pci_read_long(bus_id, 16+i*4);
-
- /* work out the linear framebuffer and MMIO addresses */
- if (matrox_id == MATROX_MILL_ID) {
- if (pci_base[0])
- io_mem_base[0] = pci_base[0] & 0xFFFFC000;
-
- if (pci_base[1])
- linear_base = pci_base[1] & 0xFF800000;
- }
-
- if (!linear_base || !io_mem_base[0])
- return NULL;
-
- /* deal with the memory mapping crap */
- io_mem_size[0] = 0x4000;
-
- for (i=0; i<4; i++) {
- if (io_mem_base[i]) {
- if (_create_mmap(&mgaptr.io_mem_map[i], io_mem_base[i], io_mem_size[i])) {
- mga_hw_fini();
- return NULL;
- }
- }
- }
-
- *vram = linear_size = _mga_get_vram(matrox_id, linear_base);
-
- if (_create_mmap(&mgaptr.linear_map, linear_base, linear_size)) {
- mga_hw_fini();
- return NULL;
- }
-
- /* fill in user data */
- *interleave = linear_size > 2*1024*1024;
-
- return matrox_id;
-}
-
-
-
-/* PCI routines added by SET */
-#define PCIAddr 0xCF8
-#define PCIData 0xCFC
-#define PCIEnable 0x80000000
-
-
-
-/* FindPCIDevice:
- * Replacement for the INT 1A - PCI BIOS v2.0c+ - FIND PCI DEVICE, AX = B102h
- *
- * Note: deviceIndex is because a card can hold more than one PCI chip.
- *
- * Searches the board of the vendor supplied in vendorID with
- * identification number deviceID and index deviceIndex (normally 0).
- * The value returned in handle can be used to access the PCI registers
- * of this board.
- *
- * Return: 1 if found 0 if not found.
- */
-static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle)
-{
- int model, vendor, card, device;
- unsigned value, full_id, bus, busMax;
-
- deviceIndex <<= 8;
-
- /* for each PCI bus */
- for (bus=0, busMax=0x10000; bus<busMax; bus+=0x10000) {
-
- /* for each hardware device */
- for (device=0, card=0; card<32; card++, device+=0x800) {
- value = PCIEnable | bus | deviceIndex | device;
- outportl(PCIAddr, value);
- full_id = inportl(PCIData);
-
- /* get the vendor and model ID */
- vendor = full_id & 0xFFFF;
- model = full_id >> 16;
-
- if (vendor != 0xFFFF) {
- /* is this the one we want? */
- if ((deviceID == model) && (vendorID == vendor)) {
- *handle = value;
- return 1;
- }
-
- /* is it a bridge to a secondary bus? */
- outportl(PCIAddr, value | 8);
-
- if (((inportl(PCIData) >> 16) == 0x0600) || (full_id==0x00011011))
- busMax += 0x10000;
- }
- }
- }
-
- return 0;
-}
-
-
-
-/* Desc:
- *
- * In :
- * Out :
- *
- * Note:
- */
-static unsigned long pci_read_long (int handle, int index)
-{
- outportl(PCIAddr, PCIEnable | handle | index);
- return inportl(PCIData);
-}
-
-
-
-/* Desc:
- *
- * In :
- * Out :
- *
- * Note:
- */
-static void pci_write_long (int handle, int index, unsigned long value)
-{
- outportl(PCIAddr, PCIEnable | handle | index);
- outportl(PCIData, value);
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.4 for Mesa -- MGA2064W HW mapping
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <crt0.h>
+#include <dpmi.h>
+#include <pc.h>
+#include <string.h>
+#include <sys/nearptr.h>
+#include <sys/segments.h>
+
+#include "../internal.h"
+#include "mga_reg.h"
+#include "mga_hw.h"
+
+
+
+/* Hack alert:
+ * these should really be externs
+ */
+/* PCI access routines */
+static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle);
+static unsigned long pci_read_long (int handle, int index);
+static void pci_write_long (int handle, int index, unsigned long value);
+
+
+
+/* PCI device identifiers */
+#define MATROX_VENDOR_ID 0x102B
+
+typedef enum {
+ MATROX_MILL_ID = 0x0519
+} MATROX_ID;
+
+static MATROX_ID matrox_id_list[] = {
+ MATROX_MILL_ID,
+ 0
+};
+
+
+
+/* internal hardware data structures */
+#if !MGA_FARPTR
+static int dirty;
+#endif
+static int bus_id;
+static unsigned long reg40;
+static unsigned long io_mem_base[4], linear_base;
+static unsigned long io_mem_size[4], linear_size;
+static MATROX_ID matrox_id;
+
+
+
+/* interface structures containing hardware pointer data */
+MGA_HWPTR mgaptr;
+
+
+
+/* Desc: create MMAP
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static int _create_mmap (__dpmi_paddr *m, unsigned long base, unsigned long size)
+{
+#if MGA_FARPTR
+ int sel;
+ if (_create_selector(&sel, base, size)) {
+ return -1;
+ }
+ m->selector = sel;
+ m->offset32 = 0;
+#else
+ m->selector = _my_ds();
+ if (_create_linear_mapping(&m->offset32, base, size)) {
+ return -1;
+ }
+ m->offset32 -= __djgpp_base_address;
+#endif
+ return 0;
+}
+
+
+
+/* Desc: destroy MMAP
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static void _destroy_mmap (__dpmi_paddr *m)
+{
+#if MGA_FARPTR
+ int sel = m->selector;
+ _remove_selector(&sel);
+#else
+ m->offset32 += __djgpp_base_address;
+ _remove_linear_mapping(&m->offset32);
+#endif
+ m->selector = 0;
+ m->offset32 = 0;
+}
+
+
+
+/* Desc: Counts amount of installed RAM
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static int _mga_get_vram (MATROX_ID chip, unsigned long base)
+{
+ int ProbeSize = 8;
+ int SizeFound = 2;
+ unsigned char tmp;
+ int i;
+ __dpmi_paddr fb;
+
+ switch (chip) {
+ case MATROX_MILL_ID:
+ ProbeSize = 8;
+ break;
+ }
+
+ if (_create_mmap(&fb, base, ProbeSize*1024*1024)) {
+ return 0;
+ }
+
+ /* turn MGA mode on - enable linear frame buffer (CRTCEXT3) */
+ mga_select();
+ mga_outb(M_CRTC_EXT_INDEX, 3);
+ tmp = mga_inb(M_CRTC_EXT_DATA);
+ mga_outb(M_CRTC_EXT_DATA, tmp | M_MGAMODE);
+
+ /* write, read and compare method */
+ for (i=ProbeSize; i>2; i-= 2) {
+ hwptr_pokeb(fb, i*1024*1024 - 1, 0xAA);
+ mga_select();
+ mga_outb(M_CRTC_INDEX, 0); /* flush the cache */
+ mga_inl(M_STATUS); /* delay */
+ mga_inl(M_STATUS); /* delay */
+ mga_inl(M_STATUS); /* delay */
+ if (hwptr_peekb(fb, i*1024*1024 - 1) == 0xAA) {
+ SizeFound = i;
+ break;
+ }
+ }
+
+ /* restore CRTCEXT3 state */
+ mga_select();
+ mga_outb(M_CRTC_EXT_INDEX, 3);
+ mga_outb(M_CRTC_EXT_DATA, tmp);
+
+ _destroy_mmap(&fb);
+
+ return SizeFound*1024*1024;
+}
+
+
+
+/* Desc: Frees all resources allocated by MGA init code.
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_hw_fini (void)
+{
+ int i;
+
+ pci_write_long(bus_id, 0x40, reg40);
+
+ for (i=0; i<4; i++) {
+ _destroy_mmap(&mgaptr.io_mem_map[i]);
+ }
+
+ _destroy_mmap(&mgaptr.linear_map);
+
+#if !MGA_FARPTR
+ if (dirty) {
+ __djgpp_nearptr_disable();
+ dirty = FALSE;
+ }
+#endif
+
+ matrox_id = 0;
+}
+
+
+
+/* Desc: Attempts to detect MGA.
+ *
+ * In :
+ * Out :
+ *
+ * Note: The first thing ever to be called. This is in charge of filling in
+ * the driver header with all the required information and function
+ * pointers. We do not yet have access to the video memory, so we can't
+ * talk directly to the card.
+ */
+int mga_hw_init (unsigned long *vram, int *interleave, char *name)
+{
+ int i;
+ unsigned long pci_base[2];
+
+ if (matrox_id) {
+ return matrox_id;
+ }
+
+#if !MGA_FARPTR
+ /* enable nearptr access */
+ if (_crt0_startup_flags & _CRT0_FLAG_NEARPTR) {
+ dirty = FALSE;
+ } else {
+ if (__djgpp_nearptr_enable() == 0)
+ return 0;
+
+ dirty = TRUE;
+ }
+#endif
+
+ /* find PCI device */
+ matrox_id = 0;
+
+ for (bus_id=0, i=0; matrox_id_list[i]; i++) {
+ if (pci_find_device(matrox_id_list[i], MATROX_VENDOR_ID, 0, &bus_id)) {
+ matrox_id = matrox_id_list[i];
+ break;
+ }
+ }
+
+ /* set up the card name */
+ switch (matrox_id) {
+ case MATROX_MILL_ID:
+ if (name) strcpy(name, "Millennium");
+ break;
+ default:
+ matrox_id = 0;
+ return -1;
+ }
+
+ reg40 = pci_read_long(bus_id, 0x40);
+#if 0 /* overclock a little :) */
+ {
+ int rfhcnt = (reg40 >> 16) & 0xF;
+ if ((reg40 & 0x200000) && (rfhcnt < 0xC)) {
+ pci_write_long(bus_id, 0x40, (reg40 & 0xFFF0FFFF) | 0x000C0000);
+ }
+ }
+#endif
+
+ /* read hardware configuration data */
+ for (i=0; i<2; i++)
+ pci_base[i] = pci_read_long(bus_id, 16+i*4);
+
+ /* work out the linear framebuffer and MMIO addresses */
+ if (matrox_id == MATROX_MILL_ID) {
+ if (pci_base[0])
+ io_mem_base[0] = pci_base[0] & 0xFFFFC000;
+
+ if (pci_base[1])
+ linear_base = pci_base[1] & 0xFF800000;
+ }
+
+ if (!linear_base || !io_mem_base[0])
+ return 0;
+
+ /* deal with the memory mapping crap */
+ io_mem_size[0] = 0x4000;
+
+ for (i=0; i<4; i++) {
+ if (io_mem_base[i]) {
+ if (_create_mmap(&mgaptr.io_mem_map[i], io_mem_base[i], io_mem_size[i])) {
+ mga_hw_fini();
+ return 0;
+ }
+ }
+ }
+
+ *vram = linear_size = _mga_get_vram(matrox_id, linear_base);
+
+ if (_create_mmap(&mgaptr.linear_map, linear_base, linear_size)) {
+ mga_hw_fini();
+ return 0;
+ }
+
+ /* fill in user data */
+ *interleave = linear_size > 2*1024*1024;
+
+ return matrox_id;
+}
+
+
+
+/* PCI routines added by SET */
+#define PCIAddr 0xCF8
+#define PCIData 0xCFC
+#define PCIEnable 0x80000000
+
+
+
+/* FindPCIDevice:
+ * Replacement for the INT 1A - PCI BIOS v2.0c+ - FIND PCI DEVICE, AX = B102h
+ *
+ * Note: deviceIndex is because a card can hold more than one PCI chip.
+ *
+ * Searches the board of the vendor supplied in vendorID with
+ * identification number deviceID and index deviceIndex (normally 0).
+ * The value returned in handle can be used to access the PCI registers
+ * of this board.
+ *
+ * Return: 1 if found 0 if not found.
+ */
+static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle)
+{
+ int model, vendor, card, device;
+ unsigned value, full_id, bus, busMax;
+
+ deviceIndex <<= 8;
+
+ /* for each PCI bus */
+ for (bus=0, busMax=0x10000; bus<busMax; bus+=0x10000) {
+
+ /* for each hardware device */
+ for (device=0, card=0; card<32; card++, device+=0x800) {
+ value = PCIEnable | bus | deviceIndex | device;
+ outportl(PCIAddr, value);
+ full_id = inportl(PCIData);
+
+ /* get the vendor and model ID */
+ vendor = full_id & 0xFFFF;
+ model = full_id >> 16;
+
+ if (vendor != 0xFFFF) {
+ /* is this the one we want? */
+ if ((deviceID == model) && (vendorID == vendor)) {
+ *handle = value;
+ return 1;
+ }
+
+ /* is it a bridge to a secondary bus? */
+ outportl(PCIAddr, value | 8);
+
+ if (((inportl(PCIData) >> 16) == 0x0600) || (full_id==0x00011011))
+ busMax += 0x10000;
+ }
+ }
+ }
+
+ return 0;
+}
+
+
+
+/* Desc:
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static unsigned long pci_read_long (int handle, int index)
+{
+ outportl(PCIAddr, PCIEnable | handle | index);
+ return inportl(PCIData);
+}
+
+
+
+/* Desc:
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static void pci_write_long (int handle, int index, unsigned long value)
+{
+ outportl(PCIAddr, PCIEnable | handle | index);
+ outportl(PCIData, value);
+}
diff --git a/src/mesa/drivers/dos/mga/mga_hw.h b/src/mesa/drivers/dos/mga/mga_hw.h
index c6575b97f88..8cc266b49e7 100644
--- a/src/mesa/drivers/dos/mga/mga_hw.h
+++ b/src/mesa/drivers/dos/mga/mga_hw.h
@@ -1,113 +1,113 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W HW mapping
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef MGA_HW_included
-#define MGA_HW_included
-
-
-
-/* set this to zero to use near pointers */
-#define MGA_FARPTR 1
-
-
-
-/* access macros */
-#if MGA_FARPTR
-
-#include <sys/farptr.h>
-
-#define hwptr_pokeb(ptr, off, val) _farpokeb((ptr).selector, (ptr).offset32+(off), (val))
-#define hwptr_pokew(ptr, off, val) _farpokew((ptr).selector, (ptr).offset32+(off), (val))
-#define hwptr_pokel(ptr, off, val) _farpokel((ptr).selector, (ptr).offset32+(off), (val))
-
-#define hwptr_peekb(ptr, off) _farpeekb((ptr).selector, (ptr).offset32+(off))
-#define hwptr_peekw(ptr, off) _farpeekw((ptr).selector, (ptr).offset32+(off))
-#define hwptr_peekl(ptr, off) _farpeekl((ptr).selector, (ptr).offset32+(off))
-
-#define hwptr_select(ptr) _farsetsel((ptr).selector)
-#define hwptr_unselect(ptr) (ptr).selector = _fargetsel()
-
-#define hwptr_nspokeb(ptr, off, val) _farnspokeb((ptr).offset32+(off), (val))
-#define hwptr_nspokew(ptr, off, val) _farnspokew((ptr).offset32+(off), (val))
-#define hwptr_nspokel(ptr, off, val) _farnspokel((ptr).offset32+(off), (val))
-
-#define hwptr_nspeekb(ptr, off) _farnspeekb((ptr).offset32+(off))
-#define hwptr_nspeekw(ptr, off) _farnspeekw((ptr).offset32+(off))
-#define hwptr_nspeekl(ptr, off) _farnspeekl((ptr).offset32+(off))
-
-#else
-
-#define hwptr_pokeb(ptr, off, val) *((volatile unsigned char *)((ptr).offset32+(off))) = (val)
-#define hwptr_pokew(ptr, off, val) *((volatile unsigned short *)((ptr).offset32+(off))) = (val)
-#define hwptr_pokel(ptr, off, val) *((volatile unsigned long *)((ptr).offset32+(off))) = (val)
-
-#define hwptr_peekb(ptr, off) (*((volatile unsigned char *)((ptr).offset32+(off))))
-#define hwptr_peekw(ptr, off) (*((volatile unsigned short *)((ptr).offset32+(off))))
-#define hwptr_peekl(ptr, off) (*((volatile unsigned long *)((ptr).offset32+(off))))
-
-#define hwptr_select(ptr)
-#define hwptr_unselect(ptr)
-
-#define hwptr_nspokeb(ptr, off, val) *((volatile unsigned char *)((ptr).offset32+(off))) = (val)
-#define hwptr_nspokew(ptr, off, val) *((volatile unsigned short *)((ptr).offset32+(off))) = (val)
-#define hwptr_nspokel(ptr, off, val) *((volatile unsigned long *)((ptr).offset32+(off))) = (val)
-
-#define hwptr_nspeekb(ptr, off) (*((volatile unsigned char *)((ptr).offset32+(off))))
-#define hwptr_nspeekw(ptr, off) (*((volatile unsigned short *)((ptr).offset32+(off))))
-#define hwptr_nspeekl(ptr, off) (*((volatile unsigned long *)((ptr).offset32+(off))))
-
-#endif
-
-
-
-/* helpers for accessing the Matrox registers */
-#define mga_select() hwptr_select(mgaptr.io_mem_map[0])
-#define mga_inb(addr) hwptr_nspeekb(mgaptr.io_mem_map[0], addr)
-#define mga_inw(addr) hwptr_nspeekw(mgaptr.io_mem_map[0], addr)
-#define mga_inl(addr) hwptr_nspeekl(mgaptr.io_mem_map[0], addr)
-#define mga_outb(addr, val) hwptr_nspokeb(mgaptr.io_mem_map[0], addr, val)
-#define mga_outw(addr, val) hwptr_nspokew(mgaptr.io_mem_map[0], addr, val)
-#define mga_outl(addr, val) hwptr_nspokel(mgaptr.io_mem_map[0], addr, val)
-
-
-
-typedef struct MGA_HWPTR {
- __dpmi_paddr io_mem_map[4], linear_map;
-} MGA_HWPTR;
-
-extern MGA_HWPTR mgaptr;
-
-void mga_hw_fini (void);
-int mga_hw_init (unsigned long *vram, int *interleave, char *name);
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W HW mapping
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef MGA_HW_included
+#define MGA_HW_included
+
+
+
+/* set this to zero to use near pointers */
+#define MGA_FARPTR 1
+
+
+
+/* access macros */
+#if MGA_FARPTR
+
+#include <sys/farptr.h>
+
+#define hwptr_pokeb(ptr, off, val) _farpokeb((ptr).selector, (ptr).offset32+(off), (val))
+#define hwptr_pokew(ptr, off, val) _farpokew((ptr).selector, (ptr).offset32+(off), (val))
+#define hwptr_pokel(ptr, off, val) _farpokel((ptr).selector, (ptr).offset32+(off), (val))
+
+#define hwptr_peekb(ptr, off) _farpeekb((ptr).selector, (ptr).offset32+(off))
+#define hwptr_peekw(ptr, off) _farpeekw((ptr).selector, (ptr).offset32+(off))
+#define hwptr_peekl(ptr, off) _farpeekl((ptr).selector, (ptr).offset32+(off))
+
+#define hwptr_select(ptr) _farsetsel((ptr).selector)
+#define hwptr_unselect(ptr) (ptr).selector = _fargetsel()
+
+#define hwptr_nspokeb(ptr, off, val) _farnspokeb((ptr).offset32+(off), (val))
+#define hwptr_nspokew(ptr, off, val) _farnspokew((ptr).offset32+(off), (val))
+#define hwptr_nspokel(ptr, off, val) _farnspokel((ptr).offset32+(off), (val))
+
+#define hwptr_nspeekb(ptr, off) _farnspeekb((ptr).offset32+(off))
+#define hwptr_nspeekw(ptr, off) _farnspeekw((ptr).offset32+(off))
+#define hwptr_nspeekl(ptr, off) _farnspeekl((ptr).offset32+(off))
+
+#else
+
+#define hwptr_pokeb(ptr, off, val) *((volatile unsigned char *)((ptr).offset32+(off))) = (val)
+#define hwptr_pokew(ptr, off, val) *((volatile unsigned short *)((ptr).offset32+(off))) = (val)
+#define hwptr_pokel(ptr, off, val) *((volatile unsigned long *)((ptr).offset32+(off))) = (val)
+
+#define hwptr_peekb(ptr, off) (*((volatile unsigned char *)((ptr).offset32+(off))))
+#define hwptr_peekw(ptr, off) (*((volatile unsigned short *)((ptr).offset32+(off))))
+#define hwptr_peekl(ptr, off) (*((volatile unsigned long *)((ptr).offset32+(off))))
+
+#define hwptr_select(ptr)
+#define hwptr_unselect(ptr)
+
+#define hwptr_nspokeb(ptr, off, val) *((volatile unsigned char *)((ptr).offset32+(off))) = (val)
+#define hwptr_nspokew(ptr, off, val) *((volatile unsigned short *)((ptr).offset32+(off))) = (val)
+#define hwptr_nspokel(ptr, off, val) *((volatile unsigned long *)((ptr).offset32+(off))) = (val)
+
+#define hwptr_nspeekb(ptr, off) (*((volatile unsigned char *)((ptr).offset32+(off))))
+#define hwptr_nspeekw(ptr, off) (*((volatile unsigned short *)((ptr).offset32+(off))))
+#define hwptr_nspeekl(ptr, off) (*((volatile unsigned long *)((ptr).offset32+(off))))
+
+#endif
+
+
+
+/* helpers for accessing the Matrox registers */
+#define mga_select() hwptr_select(mgaptr.io_mem_map[0])
+#define mga_inb(addr) hwptr_nspeekb(mgaptr.io_mem_map[0], addr)
+#define mga_inw(addr) hwptr_nspeekw(mgaptr.io_mem_map[0], addr)
+#define mga_inl(addr) hwptr_nspeekl(mgaptr.io_mem_map[0], addr)
+#define mga_outb(addr, val) hwptr_nspokeb(mgaptr.io_mem_map[0], addr, val)
+#define mga_outw(addr, val) hwptr_nspokew(mgaptr.io_mem_map[0], addr, val)
+#define mga_outl(addr, val) hwptr_nspokel(mgaptr.io_mem_map[0], addr, val)
+
+
+
+typedef struct MGA_HWPTR {
+ __dpmi_paddr io_mem_map[4], linear_map;
+} MGA_HWPTR;
+
+extern MGA_HWPTR mgaptr;
+
+void mga_hw_fini (void);
+int mga_hw_init (unsigned long *vram, int *interleave, char *name);
+
+#endif
diff --git a/src/mesa/drivers/dos/mga/mga_mode.c b/src/mesa/drivers/dos/mga/mga_mode.c
index 4c6d926111d..efba24ca691 100644
--- a/src/mesa/drivers/dos/mga/mga_mode.c
+++ b/src/mesa/drivers/dos/mga/mga_mode.c
@@ -1,231 +1,231 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W mode switching
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <dpmi.h>
-#include <string.h>
-#include <stubinfo.h>
-#include <sys/exceptn.h>
-#include <sys/farptr.h>
-#include <sys/movedata.h>
-#include <sys/segments.h>
-
-#include "../internal.h"
-#include "mga_mode.h"
-
-
-
-static MGA_MODE oldmode;
-static MGA_MODE modes[64];
-
-
-
-/*
- * VESA info
- */
-#define V_SIGN 0
-#define V_MINOR 4
-#define V_MAJOR 5
-#define V_OEM_OFS 6
-#define V_OEM_SEG 8
-#define V_MODE_OFS 14
-#define V_MODE_SEG 16
-#define V_MEMORY 18
-
-/*
- * mode info
- */
-#define M_ATTR 0
-#define M_GRAN 4
-#define M_SCANLEN 16
-#define M_XRES 18
-#define M_YRES 20
-#define M_BPP 25
-#define M_RED 31
-#define M_GREEN 33
-#define M_BLUE 35
-#define M_PHYS_PTR 40
-
-
-
-/* Desc: get available modes
- *
- * In : -
- * Out : linear modes list ptr
- *
- * Note: shouldn't use VESA...
- */
-static MGA_MODE *_mga_mode_check (void)
-{
- __dpmi_regs r;
- word16 *p;
- MGA_MODE *q;
- char vesa_info[512], tmp[512];
-
- _farpokel(_stubinfo->ds_selector, 0, 0x32454256);
- r.x.ax = 0x4f00;
- r.x.di = 0;
- r.x.es = _stubinfo->ds_segment;
- __dpmi_int(0x10, &r);
- movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512);
- if ((r.x.ax!=0x004f) || ((_32_ vesa_info[V_SIGN])!=0x41534556)) {
- return NULL;
- }
-
- p = (word16 *)(((_16_ vesa_info[V_MODE_SEG])<<4) + (_16_ vesa_info[V_MODE_OFS]));
- q = modes;
- do {
- if ((q->mode=_farpeekw(__djgpp_dos_sel, (unsigned long)(p++)))==0xffff) {
- break;
- }
-
- r.x.ax = 0x4f01;
- r.x.cx = q->mode;
- r.x.di = 512;
- r.x.es = _stubinfo->ds_segment;
- __dpmi_int(0x10, &r);
- movedata(_stubinfo->ds_selector, 512, _my_ds(), (unsigned)tmp, 256);
- switch (tmp[M_BPP]) {
- case 16:
- q->bpp = tmp[M_RED] + tmp[M_GREEN] + tmp[M_BLUE];
- break;
- case 8:
- case 15:
- case 24:
- case 32:
- q->bpp = tmp[M_BPP];
- break;
- default:
- q->bpp = 0;
- }
- if ((r.x.ax==0x004f) && ((tmp[M_ATTR]&0x11)==0x11) && q->bpp && (tmp[M_ATTR]&0x80)) {
- q->xres = _16_ tmp[M_XRES];
- q->yres = _16_ tmp[M_YRES];
- q->mode |= 0x4000;
- q++;
- }
- } while (TRUE);
-
- return modes;
-}
-
-
-
-/* Desc: save current mode
- *
- * In : ptr to mode structure
- * Out : 0 if success
- *
- * Note: shouldn't use VESA...
- */
-static int _mga_mode_save (MGA_MODE *p)
-{
- __asm("\n\
- movw $0x4f03, %%ax \n\
- int $0x10 \n\
- movl %%ebx, %0 \n\
- ":"=g"(p->mode)::"%eax", "%ebx");
- return 0;
-}
-
-
-
-/* Desc: switch to specified mode
- *
- * In : ptr to mode structure, refresh rate
- * Out : 0 if success
- *
- * Note: shouldn't use VESA...
- */
-int mga_mode_switch (MGA_MODE *p, int refresh)
-{
- if (oldmode.mode == 0) {
- _mga_mode_save(&oldmode);
- }
- __asm("movw $0x4f02, %%ax; int $0x10"::"b"(p->mode):"%eax");
- return 0;
-
- (void)refresh; /* silence compiler warning */
-}
-
-
-
-/* Desc: restore to the mode prior to first call to `mga_switch'
- *
- * In : -
- * Out : 0 if success
- *
- * Note: shouldn't use VESA...
- */
-int mga_mode_restore (void)
-{
- if (oldmode.mode != 0) {
- __asm("movw $0x4f02, %%ax; int $0x10"::"b"(oldmode.mode):"%eax");
- oldmode.mode = 0;
- }
- return 0;
-}
-
-
-
-/* Desc: return suitable mode
- *
- * In : width, height, bpp
- * Out : ptr to mode structure
- *
- * Note: -
- */
-MGA_MODE *mga_mode_find (int width, int height, int bpp)
-{
- static MGA_MODE *q = NULL;
-
- MGA_MODE *p;
- unsigned int min;
-
- if (q == NULL) {
- if ((q = _mga_mode_check()) == NULL) {
- return NULL;
- }
- }
-
- /* search for a mode that fits our request */
- for (min=-1, p=NULL; q->mode!=0xffff; q++) {
- if ((q->xres>=width) && (q->yres>=height) && (q->bpp==bpp)) {
- if (min>=(unsigned)(q->xres*q->yres)) {
- min = q->xres*q->yres;
- p = q;
- }
- }
- }
-
- return p;
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W mode switching
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <dpmi.h>
+#include <string.h>
+#include <stubinfo.h>
+#include <sys/exceptn.h>
+#include <sys/farptr.h>
+#include <sys/movedata.h>
+#include <sys/segments.h>
+
+#include "../internal.h"
+#include "mga_mode.h"
+
+
+
+static MGA_MODE oldmode;
+static MGA_MODE modes[64];
+
+
+
+/*
+ * VESA info
+ */
+#define V_SIGN 0
+#define V_MINOR 4
+#define V_MAJOR 5
+#define V_OEM_OFS 6
+#define V_OEM_SEG 8
+#define V_MODE_OFS 14
+#define V_MODE_SEG 16
+#define V_MEMORY 18
+
+/*
+ * mode info
+ */
+#define M_ATTR 0
+#define M_GRAN 4
+#define M_SCANLEN 16
+#define M_XRES 18
+#define M_YRES 20
+#define M_BPP 25
+#define M_RED 31
+#define M_GREEN 33
+#define M_BLUE 35
+#define M_PHYS_PTR 40
+
+
+
+/* Desc: get available modes
+ *
+ * In : -
+ * Out : linear modes list ptr
+ *
+ * Note: shouldn't use VESA...
+ */
+static MGA_MODE *_mga_mode_check (void)
+{
+ __dpmi_regs r;
+ word16 *p;
+ MGA_MODE *q;
+ char vesa_info[512], tmp[512];
+
+ _farpokel(_stubinfo->ds_selector, 0, 0x32454256);
+ r.x.ax = 0x4f00;
+ r.x.di = 0;
+ r.x.es = _stubinfo->ds_segment;
+ __dpmi_int(0x10, &r);
+ movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512);
+ if ((r.x.ax!=0x004f) || ((_32_ vesa_info[V_SIGN])!=0x41534556)) {
+ return NULL;
+ }
+
+ p = (word16 *)(((_16_ vesa_info[V_MODE_SEG])<<4) + (_16_ vesa_info[V_MODE_OFS]));
+ q = modes;
+ do {
+ if ((q->mode=_farpeekw(__djgpp_dos_sel, (unsigned long)(p++)))==0xffff) {
+ break;
+ }
+
+ r.x.ax = 0x4f01;
+ r.x.cx = q->mode;
+ r.x.di = 512;
+ r.x.es = _stubinfo->ds_segment;
+ __dpmi_int(0x10, &r);
+ movedata(_stubinfo->ds_selector, 512, _my_ds(), (unsigned)tmp, 256);
+ switch (tmp[M_BPP]) {
+ case 16:
+ q->bpp = tmp[M_RED] + tmp[M_GREEN] + tmp[M_BLUE];
+ break;
+ case 8:
+ case 15:
+ case 24:
+ case 32:
+ q->bpp = tmp[M_BPP];
+ break;
+ default:
+ q->bpp = 0;
+ }
+ if ((r.x.ax==0x004f) && ((tmp[M_ATTR]&0x11)==0x11) && q->bpp && (tmp[M_ATTR]&0x80)) {
+ q->xres = _16_ tmp[M_XRES];
+ q->yres = _16_ tmp[M_YRES];
+ q->mode |= 0x4000;
+ q++;
+ }
+ } while (TRUE);
+
+ return modes;
+}
+
+
+
+/* Desc: save current mode
+ *
+ * In : ptr to mode structure
+ * Out : 0 if success
+ *
+ * Note: shouldn't use VESA...
+ */
+static int _mga_mode_save (MGA_MODE *p)
+{
+ __asm("\n\
+ movw $0x4f03, %%ax \n\
+ int $0x10 \n\
+ movl %%ebx, %0 \n\
+ ":"=g"(p->mode)::"%eax", "%ebx");
+ return 0;
+}
+
+
+
+/* Desc: switch to specified mode
+ *
+ * In : ptr to mode structure, refresh rate
+ * Out : 0 if success
+ *
+ * Note: shouldn't use VESA...
+ */
+int mga_mode_switch (MGA_MODE *p, int refresh)
+{
+ if (oldmode.mode == 0) {
+ _mga_mode_save(&oldmode);
+ }
+ __asm("movw $0x4f02, %%ax; int $0x10"::"b"(p->mode):"%eax");
+ return 0;
+
+ (void)refresh; /* silence compiler warning */
+}
+
+
+
+/* Desc: restore to the mode prior to first call to `mga_switch'
+ *
+ * In : -
+ * Out : 0 if success
+ *
+ * Note: shouldn't use VESA...
+ */
+int mga_mode_restore (void)
+{
+ if (oldmode.mode != 0) {
+ __asm("movw $0x4f02, %%ax; int $0x10"::"b"(oldmode.mode):"%eax");
+ oldmode.mode = 0;
+ }
+ return 0;
+}
+
+
+
+/* Desc: return suitable mode
+ *
+ * In : width, height, bpp
+ * Out : ptr to mode structure
+ *
+ * Note: -
+ */
+MGA_MODE *mga_mode_find (int width, int height, int bpp)
+{
+ static MGA_MODE *q = NULL;
+
+ MGA_MODE *p;
+ unsigned int min;
+
+ if (q == NULL) {
+ if ((q = _mga_mode_check()) == NULL) {
+ return NULL;
+ }
+ }
+
+ /* search for a mode that fits our request */
+ for (min=-1, p=NULL; q->mode!=0xffff; q++) {
+ if ((q->xres>=width) && (q->yres>=height) && (q->bpp==bpp)) {
+ if (min>=(unsigned)(q->xres*q->yres)) {
+ min = q->xres*q->yres;
+ p = q;
+ }
+ }
+ }
+
+ return p;
+}
diff --git a/src/mesa/drivers/dos/mga/mga_mode.h b/src/mesa/drivers/dos/mga/mga_mode.h
index b458d00d802..c9e04bc2ea2 100644
--- a/src/mesa/drivers/dos/mga/mga_mode.h
+++ b/src/mesa/drivers/dos/mga/mga_mode.h
@@ -1,47 +1,47 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W mode switching
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef MGA_MODE_included
-#define MGA_MODE_included
-
-typedef struct MGA_MODE {
- int mode;
- int xres, yres;
- int bpp;
-} MGA_MODE;
-
-int mga_mode_switch (MGA_MODE *p, int refresh);
-int mga_mode_restore (void);
-MGA_MODE *mga_mode_find (int width, int height, int bpp);
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W mode switching
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef MGA_MODE_included
+#define MGA_MODE_included
+
+typedef struct MGA_MODE {
+ int mode;
+ int xres, yres;
+ int bpp;
+} MGA_MODE;
+
+int mga_mode_switch (MGA_MODE *p, int refresh);
+int mga_mode_restore (void);
+MGA_MODE *mga_mode_find (int width, int height, int bpp);
+
+#endif
diff --git a/src/mesa/drivers/dos/mga/mga_reg.h b/src/mesa/drivers/dos/mga/mga_reg.h
index 4cd664ff967..11db81886b6 100644
--- a/src/mesa/drivers/dos/mga/mga_reg.h
+++ b/src/mesa/drivers/dos/mga/mga_reg.h
@@ -1,207 +1,207 @@
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W register mnemonics
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef MGA_REG_H_included
-#define MGA_REG_H_included
-
-/* Matrox hardware registers: */
-#define M_AR0 0x1C60
-#define M_AR1 0x1C64
-#define M_AR2 0x1C68
-#define M_AR3 0x1C6C
-#define M_AR4 0x1C70
-#define M_AR5 0x1C74
-#define M_AR6 0x1C78
-#define M_BCOL 0x1C20
-#define M_CXBNDRY 0x1C80
-#define M_CXLEFT 0x1CA0
-#define M_CXRIGHT 0x1CA4
-#define M_DR0 0x1CC0
-#define M_DR2 0x1CC8
-#define M_DR3 0x1CCC
-#define M_DR4 0x1CD0
-#define M_DR6 0x1CD8
-#define M_DR7 0x1CDC
-#define M_DR8 0x1CE0
-#define M_DR10 0x1CE8
-#define M_DR11 0x1CEC
-#define M_DR12 0x1CF0
-#define M_DR14 0x1CF8
-#define M_DR15 0x1CFC
-#define M_DWGCTL 0x1C00
-#define M_FCOL 0x1C24
-#define M_FIFOSTATUS 0x1E10
-#define M_FXBNDRY 0x1C84
-#define M_FXLEFT 0x1CA8
-#define M_FXRIGHT 0x1CAC
-#define M_ICLEAR 0x1E18
-#define M_IEN 0x1E1C
-#define M_LEN 0x1C5C
-#define M_MACCESS 0x1C04
-#define M_OPMODE 0x1E54
-#define M_PAT0 0x1C10
-#define M_PAT1 0x1C14
-#define M_PITCH 0x1C8C
-#define M_PLNWT 0x1C1C
-#define M_RESET 0x1E40
-#define M_SGN 0x1C58
-#define M_SHIFT 0x1C50
-#define M_SRC0 0x1C30
-#define M_SRC1 0x1C34
-#define M_SRC2 0x1C38
-#define M_SRC3 0x1C3C
-#define M_STATUS 0x1E14
-#define M_VCOUNT 0x1E20
-#define M_XDST 0x1CB0
-#define M_XYEND 0x1C44
-#define M_XYSTRT 0x1C40
-#define M_YBOT 0x1C9C
-#define M_YDST 0x1C90
-#define M_YDSTLEN 0x1C88
-#define M_YDSTORG 0x1C94
-#define M_YTOP 0x1C98
-#define M_ZORG 0x1C0C
-
-#define M_EXEC 0x0100
-
-/* DWGCTL: opcod */
-#define M_DWG_LINE_OPEN 0x0
-#define M_DWG_AUTOLINE_OPEN 0x1
-#define M_DWG_LINE_CLOSE 0x2
-#define M_DWG_AUTOLINE_CLOSE 0x3
-#define M_DWG_TRAP 0x4
-#define M_DWG_TEXTURE_TRAP 0x5
-#define M_DWG_BITBLT 0x8
-#define M_DWG_FBITBLT 0xC
-#define M_DWG_ILOAD 0x9
-#define M_DWG_ILOAD_SCALE 0xD
-#define M_DWG_ILOAD_FILTER 0xF
-#define M_DWG_IDUMP 0xA
-
-/* DWGCTL: atype */
-#define M_DWG_RPL (0x0 << 4)
-#define M_DWG_RSTR (0x1 << 4)
-#define M_DWG_ZI (0x3 << 4)
-#define M_DWG_BLK (0x4 << 4)
-#define M_DWG_I (0x7 << 4)
-
-/* DWGCTL: linear */
-#define M_DWG_LINEAR (0x1 << 7)
-
-/* DWGCTL: zmode */
-#define M_DWG_NOZCMP (0x0 << 8)
-#define M_DWG_ZE (0x2 << 8)
-#define M_DWG_ZNE (0x3 << 8)
-#define M_DWG_ZLT (0x4 << 8)
-#define M_DWG_ZLTE (0x5 << 8)
-#define M_DWG_ZGT (0x6 << 8)
-#define M_DWG_ZGTE (0x7 << 8)
-
-/* DWGCTL: solid */
-#define M_DWG_SOLID (0x1 << 11)
-
-/* DWGCTL: arzero */
-#define M_DWG_ARZERO (0x1 << 12)
-
-/* DWGCTL: sgnzero */
-#define M_DWG_SGNZERO (0x1 << 13)
-
-/* DWGCTL: shiftzero */
-#define M_DWG_SHFTZERO (0x1 << 14)
-
-/* DWGCTL: bop */
-#define M_DWG_BOP_XOR (0x6 << 16)
-#define M_DWG_BOP_AND (0x8 << 16)
-#define M_DWG_BOP_SRC (0xC << 16)
-#define M_DWG_BOP_OR (0xE << 16)
-
-/* DWGCTL: trans */
-#define M_DWG_TRANS_0 (0x0 << 20)
-#define M_DWG_TRANS_1 (0x1 << 20)
-#define M_DWG_TRANS_2 (0x2 << 20)
-#define M_DWG_TRANS_3 (0x3 << 20)
-#define M_DWG_TRANS_4 (0x4 << 20)
-#define M_DWG_TRANS_5 (0x5 << 20)
-#define M_DWG_TRANS_6 (0x6 << 20)
-#define M_DWG_TRANS_7 (0x7 << 20)
-#define M_DWG_TRANS_8 (0x8 << 20)
-#define M_DWG_TRANS_9 (0x9 << 20)
-#define M_DWG_TRANS_A (0xA << 20)
-#define M_DWG_TRANS_B (0xB << 20)
-#define M_DWG_TRANS_C (0xC << 20)
-#define M_DWG_TRANS_D (0xD << 20)
-#define M_DWG_TRANS_E (0xE << 20)
-#define M_DWG_TRANS_F (0xF << 20)
-
-/* DWGCTL: bltmod */
-#define M_DWG_BMONOLEF (0x0 << 25)
-#define M_DWG_BMONOWF (0x4 << 25)
-#define M_DWG_BPLAN (0x1 << 25)
-#define M_DWG_BFCOL (0x2 << 25)
-#define M_DWG_BUYUV (0xE << 25)
-#define M_DWG_BU32BGR (0x3 << 25)
-#define M_DWG_BU32RGB (0x7 << 25)
-#define M_DWG_BU24BGR (0xB << 25)
-#define M_DWG_BU24RGB (0xF << 25)
-
-/* DWGCTL: pattern */
-#define M_DWG_PATTERN (0x1 << 29)
-
-/* DWGCTL: transc */
-#define M_DWG_TRANSC (0x1 << 30)
-
-/* OPMODE: */
-#define M_DMA_GENERAL (0x0 << 2)
-#define M_DMA_BLIT (0x1 << 2)
-#define M_DMA_VECTOR (0x2 << 2)
-
-/* SGN: */
-#define M_SDXL (0x1 << 1)
-#define M_SDXR (0x1 << 5)
-
-
-
-/* VGAREG */
-#define M_CRTC_INDEX 0x1FD4
-#define M_CRTC_DATA 0x1FD5
-
-#define M_CRTC_EXT_INDEX 0x1FDE
-#define M_CRTC_EXT_DATA 0x1FDF
-
-#define M_MISC_R 0x1FCC
-#define M_MISC_W 0x1FC2
-
-/* CRTCEXT3: */
-#define M_MGAMODE (0x1 << 7)
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W register mnemonics
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef MGA_REG_H_included
+#define MGA_REG_H_included
+
+/* Matrox hardware registers: */
+#define M_AR0 0x1C60
+#define M_AR1 0x1C64
+#define M_AR2 0x1C68
+#define M_AR3 0x1C6C
+#define M_AR4 0x1C70
+#define M_AR5 0x1C74
+#define M_AR6 0x1C78
+#define M_BCOL 0x1C20
+#define M_CXBNDRY 0x1C80
+#define M_CXLEFT 0x1CA0
+#define M_CXRIGHT 0x1CA4
+#define M_DR0 0x1CC0
+#define M_DR2 0x1CC8
+#define M_DR3 0x1CCC
+#define M_DR4 0x1CD0
+#define M_DR6 0x1CD8
+#define M_DR7 0x1CDC
+#define M_DR8 0x1CE0
+#define M_DR10 0x1CE8
+#define M_DR11 0x1CEC
+#define M_DR12 0x1CF0
+#define M_DR14 0x1CF8
+#define M_DR15 0x1CFC
+#define M_DWGCTL 0x1C00
+#define M_FCOL 0x1C24
+#define M_FIFOSTATUS 0x1E10
+#define M_FXBNDRY 0x1C84
+#define M_FXLEFT 0x1CA8
+#define M_FXRIGHT 0x1CAC
+#define M_ICLEAR 0x1E18
+#define M_IEN 0x1E1C
+#define M_LEN 0x1C5C
+#define M_MACCESS 0x1C04
+#define M_OPMODE 0x1E54
+#define M_PAT0 0x1C10
+#define M_PAT1 0x1C14
+#define M_PITCH 0x1C8C
+#define M_PLNWT 0x1C1C
+#define M_RESET 0x1E40
+#define M_SGN 0x1C58
+#define M_SHIFT 0x1C50
+#define M_SRC0 0x1C30
+#define M_SRC1 0x1C34
+#define M_SRC2 0x1C38
+#define M_SRC3 0x1C3C
+#define M_STATUS 0x1E14
+#define M_VCOUNT 0x1E20
+#define M_XDST 0x1CB0
+#define M_XYEND 0x1C44
+#define M_XYSTRT 0x1C40
+#define M_YBOT 0x1C9C
+#define M_YDST 0x1C90
+#define M_YDSTLEN 0x1C88
+#define M_YDSTORG 0x1C94
+#define M_YTOP 0x1C98
+#define M_ZORG 0x1C0C
+
+#define M_EXEC 0x0100
+
+/* DWGCTL: opcod */
+#define M_DWG_LINE_OPEN 0x0
+#define M_DWG_AUTOLINE_OPEN 0x1
+#define M_DWG_LINE_CLOSE 0x2
+#define M_DWG_AUTOLINE_CLOSE 0x3
+#define M_DWG_TRAP 0x4
+#define M_DWG_TEXTURE_TRAP 0x5
+#define M_DWG_BITBLT 0x8
+#define M_DWG_FBITBLT 0xC
+#define M_DWG_ILOAD 0x9
+#define M_DWG_ILOAD_SCALE 0xD
+#define M_DWG_ILOAD_FILTER 0xF
+#define M_DWG_IDUMP 0xA
+
+/* DWGCTL: atype */
+#define M_DWG_RPL (0x0 << 4)
+#define M_DWG_RSTR (0x1 << 4)
+#define M_DWG_ZI (0x3 << 4)
+#define M_DWG_BLK (0x4 << 4)
+#define M_DWG_I (0x7 << 4)
+
+/* DWGCTL: linear */
+#define M_DWG_LINEAR (0x1 << 7)
+
+/* DWGCTL: zmode */
+#define M_DWG_NOZCMP (0x0 << 8)
+#define M_DWG_ZE (0x2 << 8)
+#define M_DWG_ZNE (0x3 << 8)
+#define M_DWG_ZLT (0x4 << 8)
+#define M_DWG_ZLTE (0x5 << 8)
+#define M_DWG_ZGT (0x6 << 8)
+#define M_DWG_ZGTE (0x7 << 8)
+
+/* DWGCTL: solid */
+#define M_DWG_SOLID (0x1 << 11)
+
+/* DWGCTL: arzero */
+#define M_DWG_ARZERO (0x1 << 12)
+
+/* DWGCTL: sgnzero */
+#define M_DWG_SGNZERO (0x1 << 13)
+
+/* DWGCTL: shiftzero */
+#define M_DWG_SHFTZERO (0x1 << 14)
+
+/* DWGCTL: bop */
+#define M_DWG_BOP_XOR (0x6 << 16)
+#define M_DWG_BOP_AND (0x8 << 16)
+#define M_DWG_BOP_SRC (0xC << 16)
+#define M_DWG_BOP_OR (0xE << 16)
+
+/* DWGCTL: trans */
+#define M_DWG_TRANS_0 (0x0 << 20)
+#define M_DWG_TRANS_1 (0x1 << 20)
+#define M_DWG_TRANS_2 (0x2 << 20)
+#define M_DWG_TRANS_3 (0x3 << 20)
+#define M_DWG_TRANS_4 (0x4 << 20)
+#define M_DWG_TRANS_5 (0x5 << 20)
+#define M_DWG_TRANS_6 (0x6 << 20)
+#define M_DWG_TRANS_7 (0x7 << 20)
+#define M_DWG_TRANS_8 (0x8 << 20)
+#define M_DWG_TRANS_9 (0x9 << 20)
+#define M_DWG_TRANS_A (0xA << 20)
+#define M_DWG_TRANS_B (0xB << 20)
+#define M_DWG_TRANS_C (0xC << 20)
+#define M_DWG_TRANS_D (0xD << 20)
+#define M_DWG_TRANS_E (0xE << 20)
+#define M_DWG_TRANS_F (0xF << 20)
+
+/* DWGCTL: bltmod */
+#define M_DWG_BMONOLEF (0x0 << 25)
+#define M_DWG_BMONOWF (0x4 << 25)
+#define M_DWG_BPLAN (0x1 << 25)
+#define M_DWG_BFCOL (0x2 << 25)
+#define M_DWG_BUYUV (0xE << 25)
+#define M_DWG_BU32BGR (0x3 << 25)
+#define M_DWG_BU32RGB (0x7 << 25)
+#define M_DWG_BU24BGR (0xB << 25)
+#define M_DWG_BU24RGB (0xF << 25)
+
+/* DWGCTL: pattern */
+#define M_DWG_PATTERN (0x1 << 29)
+
+/* DWGCTL: transc */
+#define M_DWG_TRANSC (0x1 << 30)
+
+/* OPMODE: */
+#define M_DMA_GENERAL (0x0 << 2)
+#define M_DMA_BLIT (0x1 << 2)
+#define M_DMA_VECTOR (0x2 << 2)
+
+/* SGN: */
+#define M_SDXL (0x1 << 1)
+#define M_SDXR (0x1 << 5)
+
+
+
+/* VGAREG */
+#define M_CRTC_INDEX 0x1FD4
+#define M_CRTC_DATA 0x1FD5
+
+#define M_CRTC_EXT_INDEX 0x1FDE
+#define M_CRTC_EXT_DATA 0x1FDF
+
+#define M_MISC_R 0x1FCC
+#define M_MISC_W 0x1FC2
+
+/* CRTCEXT3: */
+#define M_MGAMODE (0x1 << 7)
+
+#endif
diff --git a/src/mesa/drivers/dos/vesa.c b/src/mesa/drivers/dos/vesa.c
index cb8c29dfc71..ea5bcb7a86e 100644
--- a/src/mesa/drivers/dos/vesa.c
+++ b/src/mesa/drivers/dos/vesa.c
@@ -1,533 +1,533 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.1
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <dpmi.h>
-#include <pc.h>
-#include <stdlib.h>
-#include <stubinfo.h>
-#include <sys/exceptn.h>
-#include <sys/segments.h>
-#include <sys/farptr.h>
-#include <sys/movedata.h>
-
-#include "video.h"
-#include "vesa.h"
-
-
-
-static vl_mode modes[128];
-
-static word16 vesa_ver;
-static int banked_selector, linear_selector;
-static int oldmode = -1;
-
-static int vesa_color_precision = 6;
-
-static word16 *vesa_pmcode;
-unsigned int vesa_gran_mask, vesa_gran_shift;
-
-
-
-/*
- * VESA info
- */
-#define V_SIGN 0
-#define V_MINOR 4
-#define V_MAJOR 5
-#define V_OEM_OFS 6
-#define V_OEM_SEG 8
-#define V_MODE_OFS 14
-#define V_MODE_SEG 16
-#define V_MEMORY 18
-
-/*
- * mode info
- */
-#define M_ATTR 0
-#define M_GRAN 4
-#define M_SCANLEN 16
-#define M_XRES 18
-#define M_YRES 20
-#define M_BPP 25
-#define M_RED 31
-#define M_GREEN 33
-#define M_BLUE 35
-#define M_PHYS_PTR 40
-
-/*
- * VESA 3.0 CRTC timings structure
- */
-typedef struct CRTCInfoBlock {
- unsigned short HorizontalTotal;
- unsigned short HorizontalSyncStart;
- unsigned short HorizontalSyncEnd;
- unsigned short VerticalTotal;
- unsigned short VerticalSyncStart;
- unsigned short VerticalSyncEnd;
- unsigned char Flags;
- unsigned long PixelClock; /* units of Hz */
- unsigned short RefreshRate; /* units of 0.01 Hz */
- unsigned char reserved[40];
-} __PACKED__ CRTCInfoBlock;
-
-#define HNEG (1 << 2)
-#define VNEG (1 << 3)
-#define DOUBLESCAN (1 << 0)
-
-
-
-/* Desc: Attempts to detect VESA, check video modes and create selectors.
- *
- * In : -
- * Out : mode array
- *
- * Note: -
- */
-static vl_mode *vesa_init (void)
-{
- __dpmi_regs r;
- word16 *p;
- vl_mode *q;
- char vesa_info[512], tmp[512];
- int maxsize = 0;
- word32 linearfb = 0;
-
- if (vesa_ver) {
- return modes;
- }
-
- _farpokel(_stubinfo->ds_selector, 0, 0x32454256);
- r.x.ax = 0x4f00;
- r.x.di = 0;
- r.x.es = _stubinfo->ds_segment;
- __dpmi_int(0x10, &r);
- movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512);
- if ((r.x.ax!=0x004f) || ((_32_ vesa_info[V_SIGN])!=0x41534556)) {
- return NULL;
- }
-
- p = (word16 *)(((_16_ vesa_info[V_MODE_SEG])<<4) + (_16_ vesa_info[V_MODE_OFS]));
- q = modes;
- do {
- if ((q->mode=_farpeekw(__djgpp_dos_sel, (unsigned long)(p++)))==0xffff) {
- break;
- }
-
- r.x.ax = 0x4f01;
- r.x.cx = q->mode;
- r.x.di = 512;
- r.x.es = _stubinfo->ds_segment;
- __dpmi_int(0x10, &r);
- movedata(_stubinfo->ds_selector, 512, _my_ds(), (unsigned)tmp, 256);
- switch (tmp[M_BPP]) {
- case 16:
- q->bpp = tmp[M_RED] + tmp[M_GREEN] + tmp[M_BLUE];
- break;
- case 8:
- case 15:
- case 24:
- case 32:
- q->bpp = tmp[M_BPP];
- break;
- default:
- q->bpp = 0;
- }
- if ((r.x.ax==0x004f) && ((tmp[M_ATTR]&0x11)==0x11) && q->bpp) {
- q->xres = _16_ tmp[M_XRES];
- q->yres = _16_ tmp[M_YRES];
- q->scanlen = _16_ tmp[M_SCANLEN];
- q->gran = (_16_ tmp[M_GRAN])<<10;
- if (tmp[M_ATTR]&0x80) {
-#if 0
- *(q+1) = *q++;
-#else
- vl_mode *q1 = q + 1;
- *q1 = *q++;
-#endif
- linearfb = _32_ tmp[M_PHYS_PTR];
- q->mode |= 0x4000;
- }
- if (maxsize<(q->scanlen*q->yres)) {
- maxsize = q->scanlen*q->yres;
- }
- q++;
- }
- } while (TRUE);
-
- if (q==modes) {
- return NULL;
- }
- if (linearfb) {
- maxsize = ((maxsize+0xfffUL)&~0xfffUL);
- if (_create_selector(&linear_selector, linearfb, maxsize)) {
- return NULL;
- }
- }
- if (_create_selector(&banked_selector, 0xa0000, modes[0].gran)) {
- _remove_selector(&linear_selector);
- return NULL;
- }
-
- for (q=modes; q->mode!=0xffff; q++) {
- q->sel = (q->mode&0x4000) ? linear_selector : banked_selector;
- }
-
- if (vesa_info[V_MAJOR] >= 2) {
- r.x.ax = 0x4f0a;
- r.x.bx = 0;
- __dpmi_int(0x10, &r);
- if (r.x.ax == 0x004f) {
- vesa_pmcode = (word16 *)malloc(r.x.cx);
- movedata(__djgpp_dos_sel, (r.x.es << 4) + r.x.di, _my_ds(), (unsigned)vesa_pmcode, r.x.cx);
- if (vesa_pmcode[3]) {
- p = (word16 *)((long)vesa_pmcode + vesa_pmcode[3]);
- while (*p++ != 0xffff) ;
- } else {
- p = NULL;
- }
- if (p && (*p != 0xffff)) {
- free(vesa_pmcode);
- vesa_pmcode = NULL;
- } else {
- vesa_swbank = (void *)((long)vesa_pmcode + vesa_pmcode[0]);
- }
- }
- }
-
- vesa_ver = _16_ vesa_info[V_MINOR];
- return modes;
-}
-
-
-
-/* Desc: Frees all resources allocated by VESA init code.
- *
- * In : -
- * Out : -
- *
- * Note: -
- */
-static void vesa_fini (void)
-{
- if (vesa_ver) {
- _remove_selector(&linear_selector);
- _remove_selector(&banked_selector);
- if (vesa_pmcode != NULL) {
- free(vesa_pmcode);
- vesa_pmcode = NULL;
- }
- }
-}
-
-
-
-/* Desc: Uses VESA 3.0 function 0x4F0B to find the closest pixel clock to the requested value.
- *
- * In : mode, clock
- * Out : desired clock
- *
- * Note: -
- */
-static unsigned long _closest_pixclk (int mode_no, unsigned long vclk)
-{
- __dpmi_regs r;
-
- r.x.ax = 0x4F0B;
- r.h.bl = 0;
- r.d.ecx = vclk;
- r.x.dx = mode_no;
- __dpmi_int(0x10, &r);
-
- return (r.x.ax==0x004f) ? r.d.ecx : 0;
-}
-
-
-
-/* Desc: Calculates CRTC mode timings.
- *
- * In : crtc block, geometry, adjust
- * Out :
- *
- * Note:
- */
-static void _crtc_timing (CRTCInfoBlock *crtc, int xres, int yres, int xadjust, int yadjust)
-{
- int HTotal, VTotal;
- int HDisp, VDisp;
- int HSS, VSS;
- int HSE, VSE;
- int HSWidth, VSWidth;
- int SS, SE;
- int doublescan = FALSE;
-
- if (yres < 400) {
- doublescan = TRUE;
- yres *= 2;
- }
-
- HDisp = xres;
- HTotal = (int)(HDisp * 1.27) & ~0x7;
- HSWidth = (int)((HTotal - HDisp) / 5) & ~0x7;
- HSS = HDisp + 16;
- HSE = HSS + HSWidth;
- VDisp = yres;
- VTotal = VDisp * 1.07;
- VSWidth = (VTotal / 100) + 1;
- VSS = VDisp + ((int)(VTotal - VDisp) / 5) + 1;
- VSE = VSS + VSWidth;
-
- SS = HSS + xadjust;
- SE = HSE + xadjust;
-
- if (xadjust < 0) {
- if (SS < (HDisp + 8)) {
- SS = HDisp + 8;
- SE = SS + HSWidth;
- }
- } else {
- if ((HTotal - 24) < SE) {
- SE = HTotal - 24;
- SS = SE - HSWidth;
- }
- }
-
- HSS = SS;
- HSE = SE;
-
- SS = VSS + yadjust;
- SE = VSE + yadjust;
-
- if (yadjust < 0) {
- if (SS < (VDisp + 3)) {
- SS = VDisp + 3;
- SE = SS + VSWidth;
- }
- } else {
- if ((VTotal - 4) < SE) {
- SE = VTotal - 4;
- SS = SE - VSWidth;
- }
- }
-
- VSS = SS;
- VSE = SE;
-
- crtc->HorizontalTotal = HTotal;
- crtc->HorizontalSyncStart = HSS;
- crtc->HorizontalSyncEnd = HSE;
- crtc->VerticalTotal = VTotal;
- crtc->VerticalSyncStart = VSS;
- crtc->VerticalSyncEnd = VSE;
- crtc->Flags = HNEG | VNEG;
-
- if (doublescan)
- crtc->Flags |= DOUBLESCAN;
-}
-
-
-
-/* Desc: Attempts to enter specified video mode.
- *
- * In : ptr to mode structure, refresh rate
- * Out : 0 if success
- *
- * Note: -
- */
-static int vesa_entermode (vl_mode *p, int refresh)
-{
- __dpmi_regs r;
-
- if (p->mode & 0x4000) {
- VESA.blit = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
- } else {
- VESA.blit = vesa_b_dump_virtual;
- { int n; for (vesa_gran_shift=0, n=p->gran; n; vesa_gran_shift++, n>>=1) ; }
- vesa_gran_mask = (1<<(--vesa_gran_shift)) - 1;
- if ((unsigned)p->gran != (vesa_gran_mask+1)) {
- return !0;
- }
- }
-
- if (oldmode == -1) {
- r.x.ax = 0x4f03;
- __dpmi_int(0x10, &r);
- oldmode = r.x.bx;
- }
-
- r.x.ax = 0x4f02;
- r.x.bx = p->mode;
-
- if (refresh && ((vesa_ver>>8) >= 3)) {
- /* VESA 3.0 stuff for controlling the refresh rate */
- CRTCInfoBlock crtc;
- unsigned long vclk;
- double f0;
-
- _crtc_timing(&crtc, p->xres, p->yres, 0, 0);
-
- vclk = (double)crtc.HorizontalTotal * crtc.VerticalTotal * refresh;
- vclk = _closest_pixclk(p->mode, vclk);
-
- if (vclk != 0) {
- f0 = (double)vclk / (crtc.HorizontalTotal * crtc.VerticalTotal);
- /*_current_refresh_rate = (int)(f0 + 0.5);*/
-
- crtc.PixelClock = vclk;
- crtc.RefreshRate = refresh * 100;
-
- movedata(_my_ds(), (unsigned)&crtc, _stubinfo->ds_selector, 0, sizeof(crtc));
-
- r.x.di = 0;
- r.x.es = _stubinfo->ds_segment;
- r.x.bx |= 0x0800;
- }
- }
-
- __dpmi_int(0x10, &r);
- if (r.x.ax != 0x004f) {
- return !0;
- }
-
- if (p->bpp == 8) {
- r.x.ax = 0x4f08;
- r.x.bx = 0x0800;
- __dpmi_int(0x10, &r);
- if (r.x.ax == 0x004f) {
- r.x.ax = 0x4f08;
- r.h.bl = 0x01;
- __dpmi_int(0x10, &r);
- vesa_color_precision = r.h.bh;
- }
- }
-
- return 0;
-}
-
-
-
-/* Desc: Restores to the mode prior to first call to vesa_entermode.
- *
- * In : -
- * Out : -
- *
- * Note: -
- */
-static void vesa_restore (void)
-{
- __dpmi_regs r;
-
- if (oldmode != -1) {
- r.x.ax = 0x4f02;
- r.x.bx = oldmode;
- __dpmi_int(0x10, &r);
- }
-}
-
-
-
-/* Desc: set one palette entry
- *
- * In : color index, R, G, B
- * Out : -
- *
- * Note: uses integer values
- */
-static void vesa_setCI_i (int index, int red, int green, int blue)
-{
-#if 0
- __asm("\n\
- movw $0x1010, %%ax \n\
- movb %1, %%dh \n\
- movb %2, %%ch \n\
- int $0x10 \n\
- "::"b"(index), "m"(red), "m"(green), "c"(blue):"%eax", "%edx");
-#else
- outportb(0x03C8, index);
- outportb(0x03C9, red);
- outportb(0x03C9, green);
- outportb(0x03C9, blue);
-#endif
-}
-
-
-
-/* Desc: set one palette entry
- *
- * In : color index, R, G, B
- * Out : -
- *
- * Note: uses normalized values
- */
-static void vesa_setCI_f (int index, float red, float green, float blue)
-{
- float max = (1 << vesa_color_precision) - 1;
-
- vesa_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max));
-}
-
-
-
-/* Desc: state retrieval
- *
- * In : parameter name, ptr to storage
- * Out : 0 if request successfully processed
- *
- * Note: -
- */
-static int vesa_get (int pname, int *params)
-{
- switch (pname) {
- case VL_GET_CI_PREC:
- params[0] = vesa_color_precision;
- break;
- default:
- return -1;
- }
- return 0;
-}
-
-
-
-/*
- * the driver
- */
-vl_driver VESA = {
- vesa_init,
- vesa_entermode,
- NULL,
- vesa_setCI_f,
- vesa_setCI_i,
- vesa_get,
- vesa_restore,
- vesa_fini
-};
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.1
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <dpmi.h>
+#include <pc.h>
+#include <stdlib.h>
+#include <stubinfo.h>
+#include <sys/exceptn.h>
+#include <sys/segments.h>
+#include <sys/farptr.h>
+#include <sys/movedata.h>
+
+#include "video.h"
+#include "vesa.h"
+
+
+
+static vl_mode modes[128];
+
+static word16 vesa_ver;
+static int banked_selector, linear_selector;
+static int oldmode = -1;
+
+static int vesa_color_precision = 6;
+
+static word16 *vesa_pmcode;
+unsigned int vesa_gran_mask, vesa_gran_shift;
+
+
+
+/*
+ * VESA info
+ */
+#define V_SIGN 0
+#define V_MINOR 4
+#define V_MAJOR 5
+#define V_OEM_OFS 6
+#define V_OEM_SEG 8
+#define V_MODE_OFS 14
+#define V_MODE_SEG 16
+#define V_MEMORY 18
+
+/*
+ * mode info
+ */
+#define M_ATTR 0
+#define M_GRAN 4
+#define M_SCANLEN 16
+#define M_XRES 18
+#define M_YRES 20
+#define M_BPP 25
+#define M_RED 31
+#define M_GREEN 33
+#define M_BLUE 35
+#define M_PHYS_PTR 40
+
+/*
+ * VESA 3.0 CRTC timings structure
+ */
+typedef struct CRTCInfoBlock {
+ unsigned short HorizontalTotal;
+ unsigned short HorizontalSyncStart;
+ unsigned short HorizontalSyncEnd;
+ unsigned short VerticalTotal;
+ unsigned short VerticalSyncStart;
+ unsigned short VerticalSyncEnd;
+ unsigned char Flags;
+ unsigned long PixelClock; /* units of Hz */
+ unsigned short RefreshRate; /* units of 0.01 Hz */
+ unsigned char reserved[40];
+} __PACKED__ CRTCInfoBlock;
+
+#define HNEG (1 << 2)
+#define VNEG (1 << 3)
+#define DOUBLESCAN (1 << 0)
+
+
+
+/* Desc: Attempts to detect VESA, check video modes and create selectors.
+ *
+ * In : -
+ * Out : mode array
+ *
+ * Note: -
+ */
+static vl_mode *vesa_init (void)
+{
+ __dpmi_regs r;
+ word16 *p;
+ vl_mode *q;
+ char vesa_info[512], tmp[512];
+ int maxsize = 0;
+ word32 linearfb = 0;
+
+ if (vesa_ver) {
+ return modes;
+ }
+
+ _farpokel(_stubinfo->ds_selector, 0, 0x32454256);
+ r.x.ax = 0x4f00;
+ r.x.di = 0;
+ r.x.es = _stubinfo->ds_segment;
+ __dpmi_int(0x10, &r);
+ movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512);
+ if ((r.x.ax!=0x004f) || ((_32_ vesa_info[V_SIGN])!=0x41534556)) {
+ return NULL;
+ }
+
+ p = (word16 *)(((_16_ vesa_info[V_MODE_SEG])<<4) + (_16_ vesa_info[V_MODE_OFS]));
+ q = modes;
+ do {
+ if ((q->mode=_farpeekw(__djgpp_dos_sel, (unsigned long)(p++)))==0xffff) {
+ break;
+ }
+
+ r.x.ax = 0x4f01;
+ r.x.cx = q->mode;
+ r.x.di = 512;
+ r.x.es = _stubinfo->ds_segment;
+ __dpmi_int(0x10, &r);
+ movedata(_stubinfo->ds_selector, 512, _my_ds(), (unsigned)tmp, 256);
+ switch (tmp[M_BPP]) {
+ case 16:
+ q->bpp = tmp[M_RED] + tmp[M_GREEN] + tmp[M_BLUE];
+ break;
+ case 8:
+ case 15:
+ case 24:
+ case 32:
+ q->bpp = tmp[M_BPP];
+ break;
+ default:
+ q->bpp = 0;
+ }
+ if ((r.x.ax==0x004f) && ((tmp[M_ATTR]&0x11)==0x11) && q->bpp) {
+ q->xres = _16_ tmp[M_XRES];
+ q->yres = _16_ tmp[M_YRES];
+ q->scanlen = _16_ tmp[M_SCANLEN];
+ q->gran = (_16_ tmp[M_GRAN])<<10;
+ if (tmp[M_ATTR]&0x80) {
+#if 0
+ *(q+1) = *q++;
+#else
+ vl_mode *q1 = q + 1;
+ *q1 = *q++;
+#endif
+ linearfb = _32_ tmp[M_PHYS_PTR];
+ q->mode |= 0x4000;
+ }
+ if (maxsize<(q->scanlen*q->yres)) {
+ maxsize = q->scanlen*q->yres;
+ }
+ q++;
+ }
+ } while (TRUE);
+
+ if (q==modes) {
+ return NULL;
+ }
+ if (linearfb) {
+ maxsize = ((maxsize+0xfffUL)&~0xfffUL);
+ if (_create_selector(&linear_selector, linearfb, maxsize)) {
+ return NULL;
+ }
+ }
+ if (_create_selector(&banked_selector, 0xa0000, modes[0].gran)) {
+ _remove_selector(&linear_selector);
+ return NULL;
+ }
+
+ for (q=modes; q->mode!=0xffff; q++) {
+ q->sel = (q->mode&0x4000) ? linear_selector : banked_selector;
+ }
+
+ if (vesa_info[V_MAJOR] >= 2) {
+ r.x.ax = 0x4f0a;
+ r.x.bx = 0;
+ __dpmi_int(0x10, &r);
+ if (r.x.ax == 0x004f) {
+ vesa_pmcode = (word16 *)malloc(r.x.cx);
+ movedata(__djgpp_dos_sel, (r.x.es << 4) + r.x.di, _my_ds(), (unsigned)vesa_pmcode, r.x.cx);
+ if (vesa_pmcode[3]) {
+ p = (word16 *)((long)vesa_pmcode + vesa_pmcode[3]);
+ while (*p++ != 0xffff) ;
+ } else {
+ p = NULL;
+ }
+ if (p && (*p != 0xffff)) {
+ free(vesa_pmcode);
+ vesa_pmcode = NULL;
+ } else {
+ vesa_swbank = (void *)((long)vesa_pmcode + vesa_pmcode[0]);
+ }
+ }
+ }
+
+ vesa_ver = _16_ vesa_info[V_MINOR];
+ return modes;
+}
+
+
+
+/* Desc: Frees all resources allocated by VESA init code.
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: -
+ */
+static void vesa_fini (void)
+{
+ if (vesa_ver) {
+ _remove_selector(&linear_selector);
+ _remove_selector(&banked_selector);
+ if (vesa_pmcode != NULL) {
+ free(vesa_pmcode);
+ vesa_pmcode = NULL;
+ }
+ }
+}
+
+
+
+/* Desc: Uses VESA 3.0 function 0x4F0B to find the closest pixel clock to the requested value.
+ *
+ * In : mode, clock
+ * Out : desired clock
+ *
+ * Note: -
+ */
+static unsigned long _closest_pixclk (int mode_no, unsigned long vclk)
+{
+ __dpmi_regs r;
+
+ r.x.ax = 0x4F0B;
+ r.h.bl = 0;
+ r.d.ecx = vclk;
+ r.x.dx = mode_no;
+ __dpmi_int(0x10, &r);
+
+ return (r.x.ax==0x004f) ? r.d.ecx : 0;
+}
+
+
+
+/* Desc: Calculates CRTC mode timings.
+ *
+ * In : crtc block, geometry, adjust
+ * Out :
+ *
+ * Note:
+ */
+static void _crtc_timing (CRTCInfoBlock *crtc, int xres, int yres, int xadjust, int yadjust)
+{
+ int HTotal, VTotal;
+ int HDisp, VDisp;
+ int HSS, VSS;
+ int HSE, VSE;
+ int HSWidth, VSWidth;
+ int SS, SE;
+ int doublescan = FALSE;
+
+ if (yres < 400) {
+ doublescan = TRUE;
+ yres *= 2;
+ }
+
+ HDisp = xres;
+ HTotal = (int)(HDisp * 1.27) & ~0x7;
+ HSWidth = (int)((HTotal - HDisp) / 5) & ~0x7;
+ HSS = HDisp + 16;
+ HSE = HSS + HSWidth;
+ VDisp = yres;
+ VTotal = VDisp * 1.07;
+ VSWidth = (VTotal / 100) + 1;
+ VSS = VDisp + ((int)(VTotal - VDisp) / 5) + 1;
+ VSE = VSS + VSWidth;
+
+ SS = HSS + xadjust;
+ SE = HSE + xadjust;
+
+ if (xadjust < 0) {
+ if (SS < (HDisp + 8)) {
+ SS = HDisp + 8;
+ SE = SS + HSWidth;
+ }
+ } else {
+ if ((HTotal - 24) < SE) {
+ SE = HTotal - 24;
+ SS = SE - HSWidth;
+ }
+ }
+
+ HSS = SS;
+ HSE = SE;
+
+ SS = VSS + yadjust;
+ SE = VSE + yadjust;
+
+ if (yadjust < 0) {
+ if (SS < (VDisp + 3)) {
+ SS = VDisp + 3;
+ SE = SS + VSWidth;
+ }
+ } else {
+ if ((VTotal - 4) < SE) {
+ SE = VTotal - 4;
+ SS = SE - VSWidth;
+ }
+ }
+
+ VSS = SS;
+ VSE = SE;
+
+ crtc->HorizontalTotal = HTotal;
+ crtc->HorizontalSyncStart = HSS;
+ crtc->HorizontalSyncEnd = HSE;
+ crtc->VerticalTotal = VTotal;
+ crtc->VerticalSyncStart = VSS;
+ crtc->VerticalSyncEnd = VSE;
+ crtc->Flags = HNEG | VNEG;
+
+ if (doublescan)
+ crtc->Flags |= DOUBLESCAN;
+}
+
+
+
+/* Desc: Attempts to enter specified video mode.
+ *
+ * In : ptr to mode structure, refresh rate
+ * Out : 0 if success
+ *
+ * Note: -
+ */
+static int vesa_entermode (vl_mode *p, int refresh)
+{
+ __dpmi_regs r;
+
+ if (p->mode & 0x4000) {
+ VESA.blit = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
+ } else {
+ VESA.blit = vesa_b_dump_virtual;
+ { int n; for (vesa_gran_shift=0, n=p->gran; n; vesa_gran_shift++, n>>=1) ; }
+ vesa_gran_mask = (1<<(--vesa_gran_shift)) - 1;
+ if ((unsigned)p->gran != (vesa_gran_mask+1)) {
+ return !0;
+ }
+ }
+
+ if (oldmode == -1) {
+ r.x.ax = 0x4f03;
+ __dpmi_int(0x10, &r);
+ oldmode = r.x.bx;
+ }
+
+ r.x.ax = 0x4f02;
+ r.x.bx = p->mode;
+
+ if (refresh && ((vesa_ver>>8) >= 3)) {
+ /* VESA 3.0 stuff for controlling the refresh rate */
+ CRTCInfoBlock crtc;
+ unsigned long vclk;
+ double f0;
+
+ _crtc_timing(&crtc, p->xres, p->yres, 0, 0);
+
+ vclk = (double)crtc.HorizontalTotal * crtc.VerticalTotal * refresh;
+ vclk = _closest_pixclk(p->mode, vclk);
+
+ if (vclk != 0) {
+ f0 = (double)vclk / (crtc.HorizontalTotal * crtc.VerticalTotal);
+ /*_current_refresh_rate = (int)(f0 + 0.5);*/
+
+ crtc.PixelClock = vclk;
+ crtc.RefreshRate = refresh * 100;
+
+ movedata(_my_ds(), (unsigned)&crtc, _stubinfo->ds_selector, 0, sizeof(crtc));
+
+ r.x.di = 0;
+ r.x.es = _stubinfo->ds_segment;
+ r.x.bx |= 0x0800;
+ }
+ }
+
+ __dpmi_int(0x10, &r);
+ if (r.x.ax != 0x004f) {
+ return !0;
+ }
+
+ if (p->bpp == 8) {
+ r.x.ax = 0x4f08;
+ r.x.bx = 0x0800;
+ __dpmi_int(0x10, &r);
+ if (r.x.ax == 0x004f) {
+ r.x.ax = 0x4f08;
+ r.h.bl = 0x01;
+ __dpmi_int(0x10, &r);
+ vesa_color_precision = r.h.bh;
+ }
+ }
+
+ return 0;
+}
+
+
+
+/* Desc: Restores to the mode prior to first call to vesa_entermode.
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: -
+ */
+static void vesa_restore (void)
+{
+ __dpmi_regs r;
+
+ if (oldmode != -1) {
+ r.x.ax = 0x4f02;
+ r.x.bx = oldmode;
+ __dpmi_int(0x10, &r);
+ }
+}
+
+
+
+/* Desc: set one palette entry
+ *
+ * In : color index, R, G, B
+ * Out : -
+ *
+ * Note: uses integer values
+ */
+static void vesa_setCI_i (int index, int red, int green, int blue)
+{
+#if 0
+ __asm("\n\
+ movw $0x1010, %%ax \n\
+ movb %1, %%dh \n\
+ movb %2, %%ch \n\
+ int $0x10 \n\
+ "::"b"(index), "m"(red), "m"(green), "c"(blue):"%eax", "%edx");
+#else
+ outportb(0x03C8, index);
+ outportb(0x03C9, red);
+ outportb(0x03C9, green);
+ outportb(0x03C9, blue);
+#endif
+}
+
+
+
+/* Desc: set one palette entry
+ *
+ * In : color index, R, G, B
+ * Out : -
+ *
+ * Note: uses normalized values
+ */
+static void vesa_setCI_f (int index, float red, float green, float blue)
+{
+ float max = (1 << vesa_color_precision) - 1;
+
+ vesa_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max));
+}
+
+
+
+/* Desc: state retrieval
+ *
+ * In : parameter name, ptr to storage
+ * Out : 0 if request successfully processed
+ *
+ * Note: -
+ */
+static int vesa_get (int pname, int *params)
+{
+ switch (pname) {
+ case VL_GET_CI_PREC:
+ params[0] = vesa_color_precision;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+
+
+/*
+ * the driver
+ */
+vl_driver VESA = {
+ vesa_init,
+ vesa_entermode,
+ NULL,
+ vesa_setCI_f,
+ vesa_setCI_i,
+ vesa_get,
+ vesa_restore,
+ vesa_fini
+};
diff --git a/src/mesa/drivers/dos/vesa.h b/src/mesa/drivers/dos/vesa.h
index 030c816f080..9287697c370 100644
--- a/src/mesa/drivers/dos/vesa.h
+++ b/src/mesa/drivers/dos/vesa.h
@@ -1,47 +1,47 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef VESA_H_included
-#define VESA_H_included
-
-#include "internal.h"
-
-extern void *vesa_swbank;
-
-extern void vesa_b_dump_virtual (void);
-extern void vesa_l_dump_virtual (void);
-extern void vesa_l_dump_virtual_mmx (void);
-
-extern vl_driver VESA;
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef VESA_H_included
+#define VESA_H_included
+
+#include "internal.h"
+
+extern void *vesa_swbank;
+
+extern void vesa_b_dump_virtual (void);
+extern void vesa_l_dump_virtual (void);
+extern void vesa_l_dump_virtual_mmx (void);
+
+extern vl_driver VESA;
+
+#endif
diff --git a/src/mesa/drivers/dos/vga.c b/src/mesa/drivers/dos/vga.c
index 4fe8773243f..9de32f0cd5e 100644
--- a/src/mesa/drivers/dos/vga.c
+++ b/src/mesa/drivers/dos/vga.c
@@ -1,235 +1,235 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.1
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <pc.h>
-#include <stdlib.h>
-
-#include "video.h"
-#include "vga.h"
-
-
-
-static vl_mode modes[] = {
- {0x13 | 0x4000, 320, 200, 320, 8, -1, 320*200},
- {0xffff, -1, -1, -1, -1, -1, -1}
-};
-
-static word16 vga_ver;
-static int linear_selector;
-static int oldmode = -1;
-
-#define vga_color_precision 6
-
-
-
-/* Desc: Attempts to detect VGA, check video modes and create selectors.
- *
- * In : -
- * Out : mode array
- *
- * Note: -
- */
-static vl_mode *vga_init (void)
-{
- int rv = 0;
-
- if (vga_ver) {
- return modes;
- }
-
- __asm("\n\
- movw $0x1a00, %%ax \n\
- int $0x10 \n\
- cmpb $0x1a, %%al \n\
- jne 0f \n\
- cmpb $0x07, %%bl \n\
- jb 0f \n\
- andl $0xff, %%ebx \n\
- movl %%ebx, %0 \n\
- 0:":"=g"(rv)::"%eax", "%ebx");
- if (rv == 0) {
- return NULL;
- }
-
- if (_create_selector(&linear_selector, 0xa0000, 0x10000)) {
- return NULL;
- }
-
- modes[0].sel = linear_selector;
-
- vga_ver = rv;
- return modes;
-}
-
-
-
-/* Desc: Frees all resources allocated by VGA init code.
- *
- * In : -
- * Out : -
- *
- * Note: -
- */
-static void vga_fini (void)
-{
- if (vga_ver) {
- _remove_selector(&linear_selector);
- }
-}
-
-
-
-/* Desc: Attempts to enter specified video mode.
- *
- * In : ptr to mode structure, refresh rate
- * Out : 0 if success
- *
- * Note: -
- */
-static int vga_entermode (vl_mode *p, int refresh)
-{
- if (!(p->mode & 0x4000)) {
- return -1;
- }
- VGA.blit = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
-
- if (oldmode == -1) {
- __asm("\n\
- movb $0x0f, %%ah \n\
- int $0x10 \n\
- andl $0xff, %%eax \n\
- movl %%eax, %0 \n\
- ":"=g"(oldmode)::"%eax", "%ebx");
- }
-
- __asm("int $0x10"::"a"(p->mode&0xff));
-
- return 0;
-
- (void)refresh; /* silence compiler warning */
-}
-
-
-
-/* Desc: Restores to the mode prior to first call to vga_entermode.
- *
- * In : -
- * Out : -
- *
- * Note: -
- */
-static void vga_restore (void)
-{
- if (oldmode != -1) {
- __asm("int $0x10"::"a"(oldmode));
- }
-}
-
-
-
-/* Desc: set one palette entry
- *
- * In : color index, R, G, B
- * Out : -
- *
- * Note: uses integer values
- */
-static void vga_setCI_i (int index, int red, int green, int blue)
-{
-#if 0
- __asm("\n\
- movw $0x1010, %%ax \n\
- movb %1, %%dh \n\
- movb %2, %%ch \n\
- int $0x10 \n\
- "::"b"(index), "m"(red), "m"(green), "c"(blue):"%eax", "%edx");
-#else
- outportb(0x03C8, index);
- outportb(0x03C9, red);
- outportb(0x03C9, green);
- outportb(0x03C9, blue);
-#endif
-}
-
-
-
-/* Desc: set one palette entry
- *
- * In : color index, R, G, B
- * Out : -
- *
- * Note: uses normalized values
- */
-static void vga_setCI_f (int index, float red, float green, float blue)
-{
- float max = (1 << vga_color_precision) - 1;
-
- vga_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max));
-}
-
-
-
-/* Desc: state retrieval
- *
- * In : parameter name, ptr to storage
- * Out : 0 if request successfully processed
- *
- * Note: -
- */
-static int vga_get (int pname, int *params)
-{
- switch (pname) {
- case VL_GET_CI_PREC:
- params[0] = vga_color_precision;
- break;
- default:
- return -1;
- }
- return 0;
-}
-
-
-
-/*
- * the driver
- */
-vl_driver VGA = {
- vga_init,
- vga_entermode,
- NULL,
- vga_setCI_f,
- vga_setCI_i,
- vga_get,
- vga_restore,
- vga_fini
-};
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.1
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <pc.h>
+#include <stdlib.h>
+
+#include "video.h"
+#include "vga.h"
+
+
+
+static vl_mode modes[] = {
+ {0x13 | 0x4000, 320, 200, 320, 8, -1, 320*200},
+ {0xffff, -1, -1, -1, -1, -1, -1}
+};
+
+static word16 vga_ver;
+static int linear_selector;
+static int oldmode = -1;
+
+#define vga_color_precision 6
+
+
+
+/* Desc: Attempts to detect VGA, check video modes and create selectors.
+ *
+ * In : -
+ * Out : mode array
+ *
+ * Note: -
+ */
+static vl_mode *vga_init (void)
+{
+ int rv = 0;
+
+ if (vga_ver) {
+ return modes;
+ }
+
+ __asm("\n\
+ movw $0x1a00, %%ax \n\
+ int $0x10 \n\
+ cmpb $0x1a, %%al \n\
+ jne 0f \n\
+ cmpb $0x07, %%bl \n\
+ jb 0f \n\
+ andl $0xff, %%ebx \n\
+ movl %%ebx, %0 \n\
+ 0:":"=g"(rv)::"%eax", "%ebx");
+ if (rv == 0) {
+ return NULL;
+ }
+
+ if (_create_selector(&linear_selector, 0xa0000, 0x10000)) {
+ return NULL;
+ }
+
+ modes[0].sel = linear_selector;
+
+ vga_ver = rv;
+ return modes;
+}
+
+
+
+/* Desc: Frees all resources allocated by VGA init code.
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: -
+ */
+static void vga_fini (void)
+{
+ if (vga_ver) {
+ _remove_selector(&linear_selector);
+ }
+}
+
+
+
+/* Desc: Attempts to enter specified video mode.
+ *
+ * In : ptr to mode structure, refresh rate
+ * Out : 0 if success
+ *
+ * Note: -
+ */
+static int vga_entermode (vl_mode *p, int refresh)
+{
+ if (!(p->mode & 0x4000)) {
+ return -1;
+ }
+ VGA.blit = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
+
+ if (oldmode == -1) {
+ __asm("\n\
+ movb $0x0f, %%ah \n\
+ int $0x10 \n\
+ andl $0xff, %%eax \n\
+ movl %%eax, %0 \n\
+ ":"=g"(oldmode)::"%eax", "%ebx");
+ }
+
+ __asm("int $0x10"::"a"(p->mode&0xff));
+
+ return 0;
+
+ (void)refresh; /* silence compiler warning */
+}
+
+
+
+/* Desc: Restores to the mode prior to first call to vga_entermode.
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: -
+ */
+static void vga_restore (void)
+{
+ if (oldmode != -1) {
+ __asm("int $0x10"::"a"(oldmode));
+ }
+}
+
+
+
+/* Desc: set one palette entry
+ *
+ * In : color index, R, G, B
+ * Out : -
+ *
+ * Note: uses integer values
+ */
+static void vga_setCI_i (int index, int red, int green, int blue)
+{
+#if 0
+ __asm("\n\
+ movw $0x1010, %%ax \n\
+ movb %1, %%dh \n\
+ movb %2, %%ch \n\
+ int $0x10 \n\
+ "::"b"(index), "m"(red), "m"(green), "c"(blue):"%eax", "%edx");
+#else
+ outportb(0x03C8, index);
+ outportb(0x03C9, red);
+ outportb(0x03C9, green);
+ outportb(0x03C9, blue);
+#endif
+}
+
+
+
+/* Desc: set one palette entry
+ *
+ * In : color index, R, G, B
+ * Out : -
+ *
+ * Note: uses normalized values
+ */
+static void vga_setCI_f (int index, float red, float green, float blue)
+{
+ float max = (1 << vga_color_precision) - 1;
+
+ vga_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max));
+}
+
+
+
+/* Desc: state retrieval
+ *
+ * In : parameter name, ptr to storage
+ * Out : 0 if request successfully processed
+ *
+ * Note: -
+ */
+static int vga_get (int pname, int *params)
+{
+ switch (pname) {
+ case VL_GET_CI_PREC:
+ params[0] = vga_color_precision;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+
+
+/*
+ * the driver
+ */
+vl_driver VGA = {
+ vga_init,
+ vga_entermode,
+ NULL,
+ vga_setCI_f,
+ vga_setCI_i,
+ vga_get,
+ vga_restore,
+ vga_fini
+};
diff --git a/src/mesa/drivers/dos/vga.h b/src/mesa/drivers/dos/vga.h
index f1bc62bbe73..aeb8faddaed 100644
--- a/src/mesa/drivers/dos/vga.h
+++ b/src/mesa/drivers/dos/vga.h
@@ -1,42 +1,42 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef VGA_H_included
-#define VGA_H_included
-
-#include "internal.h"
-#include "vesa.h"
-
-extern vl_driver VGA;
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef VGA_H_included
+#define VGA_H_included
+
+#include "internal.h"
+#include "vesa.h"
+
+extern vl_driver VGA;
+
+#endif
diff --git a/src/mesa/drivers/dos/video.c b/src/mesa/drivers/dos/video.c
index 297c9d56624..a2524e052c2 100644
--- a/src/mesa/drivers/dos/video.c
+++ b/src/mesa/drivers/dos/video.c
@@ -1,525 +1,525 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- *
- * Thanks to CrazyPyro (Neil Funk) for FakeColor
- */
-
-
-#include <stdlib.h>
-
-#include "internal.h"
-#include "vesa.h"
-#include "vga.h"
-#include "video.h"
-
-
-
-static vl_driver *drv;
-/* based upon mode specific data: valid entire session */
-int vl_video_selector;
-static vl_mode *video_mode;
-static int video_scanlen, video_bypp;
-/* valid until next buffer */
-void *vl_current_draw_buffer, *vl_current_read_buffer;
-int vl_current_stride, vl_current_width, vl_current_height, vl_current_bytes;
-int vl_current_offset, vl_current_delta;
-
-
-
-/* lookup table for scaling 5 bit colors up to 8 bits */
-static int _rgb_scale_5[32] = {
- 0, 8, 16, 25, 33, 41, 49, 58,
- 66, 74, 82, 90, 99, 107, 115, 123,
- 132, 140, 148, 156, 165, 173, 181, 189,
- 197, 206, 214, 222, 230, 239, 247, 255
-};
-
-/* lookup table for scaling 6 bit colors up to 8 bits */
-static int _rgb_scale_6[64] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 36, 40, 45, 49, 53, 57, 61,
- 65, 69, 73, 77, 81, 85, 89, 93,
- 97, 101, 105, 109, 113, 117, 121, 125,
- 130, 134, 138, 142, 146, 150, 154, 158,
- 162, 166, 170, 174, 178, 182, 186, 190,
- 194, 198, 202, 206, 210, 215, 219, 223,
- 227, 231, 235, 239, 243, 247, 251, 255
-};
-
-/* FakeColor data */
-#define R_CNT 6
-#define G_CNT 6
-#define B_CNT 6
-
-#define R_BIAS 7
-#define G_BIAS 7
-#define B_BIAS 7
-
-static word32 VGAPalette[256];
-static word8 array_r[256];
-static word8 array_g[256];
-static word8 array_b[256];
-
-
-
-int (*vl_mixfix) (fixed r, fixed g, fixed b);
-int (*vl_mixrgb) (const unsigned char rgb[]);
-int (*vl_mixrgba) (const unsigned char rgba[]);
-void (*vl_getrgba) (unsigned int offset, unsigned char rgba[4]);
-int (*vl_getpixel) (unsigned int offset);
-void (*vl_clear) (int color);
-void (*vl_rect) (int x, int y, int width, int height, int color);
-void (*vl_flip) (void);
-void (*vl_putpixel) (unsigned int offset, int color);
-
-
-
-/* Desc: color composition (w/o ALPHA)
- *
- * In : R, G, B
- * Out : color
- *
- * Note: -
- */
-static int vl_mixfix8fake (fixed r, fixed g, fixed b)
-{
- return array_b[b>>FIXED_SHIFT]*G_CNT*R_CNT
- + array_g[g>>FIXED_SHIFT]*R_CNT
- + array_r[r>>FIXED_SHIFT];
-}
-#define vl_mixfix8 vl_mixfix8fake
-static int vl_mixfix15 (fixed r, fixed g, fixed b)
-{
- return ((r>>(3+FIXED_SHIFT))<<10)
- |((g>>(3+FIXED_SHIFT))<<5)
- |(b>>(3+FIXED_SHIFT));
-}
-static int vl_mixfix16 (fixed r, fixed g, fixed b)
-{
- return ((r>>(3+FIXED_SHIFT))<<11)
- |((g>>(2+FIXED_SHIFT))<<5)
- |(b>>(3+FIXED_SHIFT));
-}
-#define vl_mixfix24 vl_mixfix32
-static int vl_mixfix32 (fixed r, fixed g, fixed b)
-{
- return ((r>>FIXED_SHIFT)<<16)
- |((g>>FIXED_SHIFT)<<8)
- |(b>>FIXED_SHIFT);
-}
-
-
-
-/* Desc: color composition (w/ ALPHA)
- *
- * In : array of integers (R, G, B, A)
- * Out : color
- *
- * Note: -
- */
-#define vl_mixrgba8 vl_mixrgb8fake
-#define vl_mixrgba15 vl_mixrgb15
-#define vl_mixrgba16 vl_mixrgb16
-#define vl_mixrgba24 vl_mixrgb24
-static int vl_mixrgba32 (const unsigned char rgba[])
-{
- return (rgba[3]<<24)|(rgba[0]<<16)|(rgba[1]<<8)|(rgba[2]);
-}
-
-
-
-/* Desc: color composition (w/o ALPHA)
- *
- * In : array of integers (R, G, B)
- * Out : color
- *
- * Note: -
- */
-static int vl_mixrgb8fake (const unsigned char rgba[])
-{
- return array_b[rgba[2]]*G_CNT*R_CNT
- + array_g[rgba[1]]*R_CNT
- + array_r[rgba[0]];
-}
-#define vl_mixrgb8 vl_mixrgb8fake
-static int vl_mixrgb15 (const unsigned char rgb[])
-{
- return ((rgb[0]>>3)<<10)|((rgb[1]>>3)<<5)|(rgb[2]>>3);
-}
-static int vl_mixrgb16 (const unsigned char rgb[])
-{
- return ((rgb[0]>>3)<<11)|((rgb[1]>>2)<<5)|(rgb[2]>>3);
-}
-#define vl_mixrgb24 vl_mixrgb32
-static int vl_mixrgb32 (const unsigned char rgb[])
-{
- return (rgb[0]<<16)|(rgb[1]<<8)|(rgb[2]);
-}
-
-
-
-/* Desc: color decomposition
- *
- * In : pixel offset, array of integers to hold color components (R, G, B, A)
- * Out : -
- *
- * Note: uses current read buffer
- */
-static void v_getrgba8fake6 (unsigned int offset, unsigned char rgba[])
-{
- word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]];
- rgba[0] = _rgb_scale_6[(c >> 16) & 0x3F];
- rgba[1] = _rgb_scale_6[(c >> 8) & 0x3F];
- rgba[2] = _rgb_scale_6[c & 0x3F];
- rgba[3] = c >> 24;
-}
-static void v_getrgba8fake8 (unsigned int offset, unsigned char rgba[])
-{
- word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]];
- rgba[0] = c >> 16;
- rgba[1] = c >> 8;
- rgba[2] = c;
- rgba[3] = c >> 24;
-}
-#define v_getrgba8 v_getrgba8fake6
-static void v_getrgba15 (unsigned int offset, unsigned char rgba[4])
-{
- word32 c = ((word16 *)vl_current_read_buffer)[offset];
- rgba[0] = _rgb_scale_5[(c >> 10) & 0x1F];
- rgba[1] = _rgb_scale_5[(c >> 5) & 0x1F];
- rgba[2] = _rgb_scale_5[c & 0x1F];
- rgba[3] = 255;
-}
-static void v_getrgba16 (unsigned int offset, unsigned char rgba[4])
-{
- word32 c = ((word16 *)vl_current_read_buffer)[offset];
- rgba[0] = _rgb_scale_5[(c >> 11) & 0x1F];
- rgba[1] = _rgb_scale_6[(c >> 5) & 0x3F];
- rgba[2] = _rgb_scale_5[c & 0x1F];
- rgba[3] = 255;
-}
-static void v_getrgba24 (unsigned int offset, unsigned char rgba[4])
-{
- word32 c = *(word32 *)((long)vl_current_read_buffer+offset*3);
- rgba[0] = c >> 16;
- rgba[1] = c >> 8;
- rgba[2] = c;
- rgba[3] = 255;
-}
-static void v_getrgba32 (unsigned int offset, unsigned char rgba[4])
-{
- word32 c = ((word32 *)vl_current_read_buffer)[offset];
- rgba[0] = c >> 16;
- rgba[1] = c >> 8;
- rgba[2] = c;
- rgba[3] = c >> 24;
-}
-
-
-
-/* Desc: pixel retrieval
- *
- * In : pixel offset
- * Out : pixel value
- *
- * Note: uses current read buffer
- */
-static int v_getpixel8 (unsigned int offset)
-{
- return ((word8 *)vl_current_read_buffer)[offset];
-}
-#define v_getpixel15 v_getpixel16
-static int v_getpixel16 (unsigned int offset)
-{
- return ((word16 *)vl_current_read_buffer)[offset];
-}
-static int v_getpixel24 (unsigned int offset)
-{
- return *(word32 *)((long)vl_current_read_buffer+offset*3);
-}
-static int v_getpixel32 (unsigned int offset)
-{
- return ((word32 *)vl_current_read_buffer)[offset];
-}
-
-
-
-/* Desc: set one palette entry
- *
- * In : index, R, G, B
- * Out : -
- *
- * Note: color components are in range [0.0 .. 1.0]
- */
-void vl_setCI (int index, float red, float green, float blue)
-{
- drv->setCI_f(index, red, green, blue);
-}
-
-
-
-/* Desc: set one palette entry
- *
- * In : color, R, G, B
- * Out : -
- *
- * Note: -
- */
-static void fake_setcolor (int c, int r, int g, int b)
-{
- VGAPalette[c] = 0xff000000 | (r<<16) | (g<<8) | b;
-
- drv->setCI_i(c, r, g, b);
-}
-
-
-
-/* Desc: build FakeColor palette
- *
- * In : CI precision in bits
- * Out : -
- *
- * Note: -
- */
-static void fake_buildpalette (int bits)
-{
- double c_r, c_g, c_b;
- int r, g, b, color = 0;
-
- double max = (1 << bits) - 1;
-
- for (b=0; b<B_CNT; ++b) {
- for (g=0; g<G_CNT; ++g) {
- for (r=0; r<R_CNT; ++r) {
- c_r = 0.5 + (double)r*(max-R_BIAS)/(R_CNT-1.) + R_BIAS;
- c_g = 0.5 + (double)g*(max-G_BIAS)/(G_CNT-1.) + G_BIAS;
- c_b = 0.5 + (double)b*(max-B_BIAS)/(B_CNT-1.) + B_BIAS;
- fake_setcolor(color++, (int)c_r, (int)c_g, (int)c_b);
- }
- }
- }
-
- for (color=0; color<256; color++) {
- c_r = (double)color*R_CNT/256.;
- c_g = (double)color*G_CNT/256.;
- c_b = (double)color*B_CNT/256.;
- array_r[color] = (int)c_r;
- array_g[color] = (int)c_g;
- array_b[color] = (int)c_b;
- }
-}
-
-
-
-/* Desc: sync buffer with video hardware
- *
- * In : ptr to old buffer, position, size
- * Out : 0 if success
- *
- * Note: -
- */
-int vl_sync_buffer (void **buffer, int x, int y, int width, int height)
-{
- if ((width & 7) || (x < 0) || (y < 0) || (x+width > video_mode->xres) || (y+height > video_mode->yres)) {
- return -1;
- } else {
- void *newbuf = *buffer;
-
- if ((newbuf == NULL) || (vl_current_width != width) || (vl_current_height != height)) {
- newbuf = realloc(newbuf, width * height * video_bypp);
- }
-
- if (newbuf == NULL) {
- return -2;
- }
-
- vl_current_width = width;
- vl_current_height = height;
- vl_current_stride = vl_current_width * video_bypp;
- vl_current_bytes = vl_current_stride * height;
-
- vl_current_offset = video_scanlen * y + video_bypp * x;
- vl_current_delta = video_scanlen - vl_current_stride;
-
- vl_current_draw_buffer = vl_current_read_buffer = *buffer = newbuf;
- return 0;
- }
-}
-
-
-
-/* Desc: state retrieval
- *
- * In : name, storage
- * Out : -
- *
- * Note: -
- */
-int vl_get (int pname, int *params)
-{
- switch (pname) {
- case VL_GET_SCREEN_SIZE:
- params[0] = video_mode->xres;
- params[1] = video_mode->yres;
- break;
- default:
- return drv->get(pname, params);
- }
- return 0;
-}
-
-
-
-/* Desc: setup mode
- *
- * In : ptr to mode definition
- * Out : 0 if success
- *
- * Note: -
- */
-static int vl_setup_mode (vl_mode *p)
-{
- if (p == NULL) {
- return -1;
- }
-
-#define INITPTR(bpp) \
- vl_putpixel = v_putpixel##bpp; \
- vl_getrgba = v_getrgba##bpp; \
- vl_getpixel = v_getpixel##bpp; \
- vl_rect = v_rect##bpp; \
- vl_mixfix = vl_mixfix##bpp; \
- vl_mixrgb = vl_mixrgb##bpp; \
- vl_mixrgba = vl_mixrgba##bpp; \
- vl_clear = _can_mmx() ? v_clear##bpp##_mmx : v_clear##bpp
-
- switch (p->bpp) {
- case 8:
- INITPTR(8);
- break;
- case 15:
- INITPTR(15);
- break;
- case 16:
- INITPTR(16);
- break;
- case 24:
- INITPTR(24);
- break;
- case 32:
- INITPTR(32);
- break;
- default:
- return -1;
- }
-
-#undef INITPTR
-
- video_mode = p;
- video_bypp = (p->bpp+7)/8;
- video_scanlen = p->scanlen;
- vl_video_selector = p->sel;
-
- return 0;
-}
-
-
-
-/* Desc: restore to the mode prior to first call to `vl_video_init'.
- *
- * In : -
- * Out : -
- *
- * Note: -
- */
-void vl_video_exit (void)
-{
- drv->restore();
- drv->fini();
-}
-
-
-
-/* Desc: enter mode
- *
- * In : xres, yres, bits/pixel, RGB, refresh rate
- * Out : pixel width in bits if success
- *
- * Note: -
- */
-int vl_video_init (int width, int height, int bpp, int rgb, int refresh)
-{
- int fake;
- vl_mode *p, *q;
- unsigned int min;
-
- fake = 0;
- if (!rgb) {
- bpp = 8;
- } else if (bpp == 8) {
- fake = 1;
- }
-
- /* initialize hardware */
- drv = &VESA;
- if ((q=drv->init()) == NULL) {
- drv = &VGA;
- if ((q=drv->init()) == NULL) {
- return 0;
- }
- }
-
- /* search for a mode that fits our request */
- for (min=-1, p=NULL; q->mode!=0xffff; q++) {
- if ((q->xres>=width) && (q->yres>=height) && (q->bpp==bpp)) {
- if (min>=(unsigned)(q->xres*q->yres)) {
- min = q->xres*q->yres;
- p = q;
- }
- }
- }
-
- /* setup and enter mode */
- if ((vl_setup_mode(p) == 0) && (drv->entermode(p, refresh) == 0)) {
- vl_flip = drv->blit;
- if (fake) {
- drv->get(VL_GET_CI_PREC, (int *)(&min));
- fake_buildpalette(min);
- if (min == 8) {
- vl_getrgba = v_getrgba8fake8;
- }
- }
- return bpp;
- }
-
- /* abort */
- return 0;
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ *
+ * Thanks to CrazyPyro (Neil Funk) for FakeColor
+ */
+
+
+#include <stdlib.h>
+
+#include "internal.h"
+#include "vesa.h"
+#include "vga.h"
+#include "video.h"
+
+
+
+static vl_driver *drv;
+/* based upon mode specific data: valid entire session */
+int vl_video_selector;
+static vl_mode *video_mode;
+static int video_scanlen, video_bypp;
+/* valid until next buffer */
+void *vl_current_draw_buffer, *vl_current_read_buffer;
+int vl_current_stride, vl_current_width, vl_current_height, vl_current_bytes;
+int vl_current_offset, vl_current_delta;
+
+
+
+/* lookup table for scaling 5 bit colors up to 8 bits */
+static int _rgb_scale_5[32] = {
+ 0, 8, 16, 25, 33, 41, 49, 58,
+ 66, 74, 82, 90, 99, 107, 115, 123,
+ 132, 140, 148, 156, 165, 173, 181, 189,
+ 197, 206, 214, 222, 230, 239, 247, 255
+};
+
+/* lookup table for scaling 6 bit colors up to 8 bits */
+static int _rgb_scale_6[64] = {
+ 0, 4, 8, 12, 16, 20, 24, 28,
+ 32, 36, 40, 45, 49, 53, 57, 61,
+ 65, 69, 73, 77, 81, 85, 89, 93,
+ 97, 101, 105, 109, 113, 117, 121, 125,
+ 130, 134, 138, 142, 146, 150, 154, 158,
+ 162, 166, 170, 174, 178, 182, 186, 190,
+ 194, 198, 202, 206, 210, 215, 219, 223,
+ 227, 231, 235, 239, 243, 247, 251, 255
+};
+
+/* FakeColor data */
+#define R_CNT 6
+#define G_CNT 6
+#define B_CNT 6
+
+#define R_BIAS 7
+#define G_BIAS 7
+#define B_BIAS 7
+
+static word32 VGAPalette[256];
+static word8 array_r[256];
+static word8 array_g[256];
+static word8 array_b[256];
+
+
+
+int (*vl_mixfix) (fixed r, fixed g, fixed b);
+int (*vl_mixrgb) (const unsigned char rgb[]);
+int (*vl_mixrgba) (const unsigned char rgba[]);
+void (*vl_getrgba) (unsigned int offset, unsigned char rgba[4]);
+int (*vl_getpixel) (unsigned int offset);
+void (*vl_clear) (int color);
+void (*vl_rect) (int x, int y, int width, int height, int color);
+void (*vl_flip) (void);
+void (*vl_putpixel) (unsigned int offset, int color);
+
+
+
+/* Desc: color composition (w/o ALPHA)
+ *
+ * In : R, G, B
+ * Out : color
+ *
+ * Note: -
+ */
+static int vl_mixfix8fake (fixed r, fixed g, fixed b)
+{
+ return array_b[b>>FIXED_SHIFT]*G_CNT*R_CNT
+ + array_g[g>>FIXED_SHIFT]*R_CNT
+ + array_r[r>>FIXED_SHIFT];
+}
+#define vl_mixfix8 vl_mixfix8fake
+static int vl_mixfix15 (fixed r, fixed g, fixed b)
+{
+ return ((r>>(3+FIXED_SHIFT))<<10)
+ |((g>>(3+FIXED_SHIFT))<<5)
+ |(b>>(3+FIXED_SHIFT));
+}
+static int vl_mixfix16 (fixed r, fixed g, fixed b)
+{
+ return ((r>>(3+FIXED_SHIFT))<<11)
+ |((g>>(2+FIXED_SHIFT))<<5)
+ |(b>>(3+FIXED_SHIFT));
+}
+#define vl_mixfix24 vl_mixfix32
+static int vl_mixfix32 (fixed r, fixed g, fixed b)
+{
+ return ((r>>FIXED_SHIFT)<<16)
+ |((g>>FIXED_SHIFT)<<8)
+ |(b>>FIXED_SHIFT);
+}
+
+
+
+/* Desc: color composition (w/ ALPHA)
+ *
+ * In : array of integers (R, G, B, A)
+ * Out : color
+ *
+ * Note: -
+ */
+#define vl_mixrgba8 vl_mixrgb8fake
+#define vl_mixrgba15 vl_mixrgb15
+#define vl_mixrgba16 vl_mixrgb16
+#define vl_mixrgba24 vl_mixrgb24
+static int vl_mixrgba32 (const unsigned char rgba[])
+{
+ return (rgba[3]<<24)|(rgba[0]<<16)|(rgba[1]<<8)|(rgba[2]);
+}
+
+
+
+/* Desc: color composition (w/o ALPHA)
+ *
+ * In : array of integers (R, G, B)
+ * Out : color
+ *
+ * Note: -
+ */
+static int vl_mixrgb8fake (const unsigned char rgba[])
+{
+ return array_b[rgba[2]]*G_CNT*R_CNT
+ + array_g[rgba[1]]*R_CNT
+ + array_r[rgba[0]];
+}
+#define vl_mixrgb8 vl_mixrgb8fake
+static int vl_mixrgb15 (const unsigned char rgb[])
+{
+ return ((rgb[0]>>3)<<10)|((rgb[1]>>3)<<5)|(rgb[2]>>3);
+}
+static int vl_mixrgb16 (const unsigned char rgb[])
+{
+ return ((rgb[0]>>3)<<11)|((rgb[1]>>2)<<5)|(rgb[2]>>3);
+}
+#define vl_mixrgb24 vl_mixrgb32
+static int vl_mixrgb32 (const unsigned char rgb[])
+{
+ return (rgb[0]<<16)|(rgb[1]<<8)|(rgb[2]);
+}
+
+
+
+/* Desc: color decomposition
+ *
+ * In : pixel offset, array of integers to hold color components (R, G, B, A)
+ * Out : -
+ *
+ * Note: uses current read buffer
+ */
+static void v_getrgba8fake6 (unsigned int offset, unsigned char rgba[])
+{
+ word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]];
+ rgba[0] = _rgb_scale_6[(c >> 16) & 0x3F];
+ rgba[1] = _rgb_scale_6[(c >> 8) & 0x3F];
+ rgba[2] = _rgb_scale_6[c & 0x3F];
+ rgba[3] = c >> 24;
+}
+static void v_getrgba8fake8 (unsigned int offset, unsigned char rgba[])
+{
+ word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]];
+ rgba[0] = c >> 16;
+ rgba[1] = c >> 8;
+ rgba[2] = c;
+ rgba[3] = c >> 24;
+}
+#define v_getrgba8 v_getrgba8fake6
+static void v_getrgba15 (unsigned int offset, unsigned char rgba[4])
+{
+ word32 c = ((word16 *)vl_current_read_buffer)[offset];
+ rgba[0] = _rgb_scale_5[(c >> 10) & 0x1F];
+ rgba[1] = _rgb_scale_5[(c >> 5) & 0x1F];
+ rgba[2] = _rgb_scale_5[c & 0x1F];
+ rgba[3] = 255;
+}
+static void v_getrgba16 (unsigned int offset, unsigned char rgba[4])
+{
+ word32 c = ((word16 *)vl_current_read_buffer)[offset];
+ rgba[0] = _rgb_scale_5[(c >> 11) & 0x1F];
+ rgba[1] = _rgb_scale_6[(c >> 5) & 0x3F];
+ rgba[2] = _rgb_scale_5[c & 0x1F];
+ rgba[3] = 255;
+}
+static void v_getrgba24 (unsigned int offset, unsigned char rgba[4])
+{
+ word32 c = *(word32 *)((long)vl_current_read_buffer+offset*3);
+ rgba[0] = c >> 16;
+ rgba[1] = c >> 8;
+ rgba[2] = c;
+ rgba[3] = 255;
+}
+static void v_getrgba32 (unsigned int offset, unsigned char rgba[4])
+{
+ word32 c = ((word32 *)vl_current_read_buffer)[offset];
+ rgba[0] = c >> 16;
+ rgba[1] = c >> 8;
+ rgba[2] = c;
+ rgba[3] = c >> 24;
+}
+
+
+
+/* Desc: pixel retrieval
+ *
+ * In : pixel offset
+ * Out : pixel value
+ *
+ * Note: uses current read buffer
+ */
+static int v_getpixel8 (unsigned int offset)
+{
+ return ((word8 *)vl_current_read_buffer)[offset];
+}
+#define v_getpixel15 v_getpixel16
+static int v_getpixel16 (unsigned int offset)
+{
+ return ((word16 *)vl_current_read_buffer)[offset];
+}
+static int v_getpixel24 (unsigned int offset)
+{
+ return *(word32 *)((long)vl_current_read_buffer+offset*3);
+}
+static int v_getpixel32 (unsigned int offset)
+{
+ return ((word32 *)vl_current_read_buffer)[offset];
+}
+
+
+
+/* Desc: set one palette entry
+ *
+ * In : index, R, G, B
+ * Out : -
+ *
+ * Note: color components are in range [0.0 .. 1.0]
+ */
+void vl_setCI (int index, float red, float green, float blue)
+{
+ drv->setCI_f(index, red, green, blue);
+}
+
+
+
+/* Desc: set one palette entry
+ *
+ * In : color, R, G, B
+ * Out : -
+ *
+ * Note: -
+ */
+static void fake_setcolor (int c, int r, int g, int b)
+{
+ VGAPalette[c] = 0xff000000 | (r<<16) | (g<<8) | b;
+
+ drv->setCI_i(c, r, g, b);
+}
+
+
+
+/* Desc: build FakeColor palette
+ *
+ * In : CI precision in bits
+ * Out : -
+ *
+ * Note: -
+ */
+static void fake_buildpalette (int bits)
+{
+ double c_r, c_g, c_b;
+ int r, g, b, color = 0;
+
+ double max = (1 << bits) - 1;
+
+ for (b=0; b<B_CNT; ++b) {
+ for (g=0; g<G_CNT; ++g) {
+ for (r=0; r<R_CNT; ++r) {
+ c_r = 0.5 + (double)r*(max-R_BIAS)/(R_CNT-1.) + R_BIAS;
+ c_g = 0.5 + (double)g*(max-G_BIAS)/(G_CNT-1.) + G_BIAS;
+ c_b = 0.5 + (double)b*(max-B_BIAS)/(B_CNT-1.) + B_BIAS;
+ fake_setcolor(color++, (int)c_r, (int)c_g, (int)c_b);
+ }
+ }
+ }
+
+ for (color=0; color<256; color++) {
+ c_r = (double)color*R_CNT/256.;
+ c_g = (double)color*G_CNT/256.;
+ c_b = (double)color*B_CNT/256.;
+ array_r[color] = (int)c_r;
+ array_g[color] = (int)c_g;
+ array_b[color] = (int)c_b;
+ }
+}
+
+
+
+/* Desc: sync buffer with video hardware
+ *
+ * In : ptr to old buffer, position, size
+ * Out : 0 if success
+ *
+ * Note: -
+ */
+int vl_sync_buffer (void **buffer, int x, int y, int width, int height)
+{
+ if ((width & 7) || (x < 0) || (y < 0) || (x+width > video_mode->xres) || (y+height > video_mode->yres)) {
+ return -1;
+ } else {
+ void *newbuf = *buffer;
+
+ if ((newbuf == NULL) || (vl_current_width != width) || (vl_current_height != height)) {
+ newbuf = realloc(newbuf, width * height * video_bypp);
+ }
+
+ if (newbuf == NULL) {
+ return -2;
+ }
+
+ vl_current_width = width;
+ vl_current_height = height;
+ vl_current_stride = vl_current_width * video_bypp;
+ vl_current_bytes = vl_current_stride * height;
+
+ vl_current_offset = video_scanlen * y + video_bypp * x;
+ vl_current_delta = video_scanlen - vl_current_stride;
+
+ vl_current_draw_buffer = vl_current_read_buffer = *buffer = newbuf;
+ return 0;
+ }
+}
+
+
+
+/* Desc: state retrieval
+ *
+ * In : name, storage
+ * Out : -
+ *
+ * Note: -
+ */
+int vl_get (int pname, int *params)
+{
+ switch (pname) {
+ case VL_GET_SCREEN_SIZE:
+ params[0] = video_mode->xres;
+ params[1] = video_mode->yres;
+ break;
+ default:
+ return drv->get(pname, params);
+ }
+ return 0;
+}
+
+
+
+/* Desc: setup mode
+ *
+ * In : ptr to mode definition
+ * Out : 0 if success
+ *
+ * Note: -
+ */
+static int vl_setup_mode (vl_mode *p)
+{
+ if (p == NULL) {
+ return -1;
+ }
+
+#define INITPTR(bpp) \
+ vl_putpixel = v_putpixel##bpp; \
+ vl_getrgba = v_getrgba##bpp; \
+ vl_getpixel = v_getpixel##bpp; \
+ vl_rect = v_rect##bpp; \
+ vl_mixfix = vl_mixfix##bpp; \
+ vl_mixrgb = vl_mixrgb##bpp; \
+ vl_mixrgba = vl_mixrgba##bpp; \
+ vl_clear = _can_mmx() ? v_clear##bpp##_mmx : v_clear##bpp
+
+ switch (p->bpp) {
+ case 8:
+ INITPTR(8);
+ break;
+ case 15:
+ INITPTR(15);
+ break;
+ case 16:
+ INITPTR(16);
+ break;
+ case 24:
+ INITPTR(24);
+ break;
+ case 32:
+ INITPTR(32);
+ break;
+ default:
+ return -1;
+ }
+
+#undef INITPTR
+
+ video_mode = p;
+ video_bypp = (p->bpp+7)/8;
+ video_scanlen = p->scanlen;
+ vl_video_selector = p->sel;
+
+ return 0;
+}
+
+
+
+/* Desc: restore to the mode prior to first call to `vl_video_init'.
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: -
+ */
+void vl_video_exit (void)
+{
+ drv->restore();
+ drv->fini();
+}
+
+
+
+/* Desc: enter mode
+ *
+ * In : xres, yres, bits/pixel, RGB, refresh rate
+ * Out : pixel width in bits if success
+ *
+ * Note: -
+ */
+int vl_video_init (int width, int height, int bpp, int rgb, int refresh)
+{
+ int fake;
+ vl_mode *p, *q;
+ unsigned int min;
+
+ fake = 0;
+ if (!rgb) {
+ bpp = 8;
+ } else if (bpp == 8) {
+ fake = 1;
+ }
+
+ /* initialize hardware */
+ drv = &VESA;
+ if ((q=drv->init()) == NULL) {
+ drv = &VGA;
+ if ((q=drv->init()) == NULL) {
+ return 0;
+ }
+ }
+
+ /* search for a mode that fits our request */
+ for (min=-1, p=NULL; q->mode!=0xffff; q++) {
+ if ((q->xres>=width) && (q->yres>=height) && (q->bpp==bpp)) {
+ if (min>=(unsigned)(q->xres*q->yres)) {
+ min = q->xres*q->yres;
+ p = q;
+ }
+ }
+ }
+
+ /* setup and enter mode */
+ if ((vl_setup_mode(p) == 0) && (drv->entermode(p, refresh) == 0)) {
+ vl_flip = drv->blit;
+ if (fake) {
+ drv->get(VL_GET_CI_PREC, (int *)(&min));
+ fake_buildpalette(min);
+ if (min == 8) {
+ vl_getrgba = v_getrgba8fake8;
+ }
+ }
+ return bpp;
+ }
+
+ /* abort */
+ return 0;
+}
diff --git a/src/mesa/drivers/dos/video.h b/src/mesa/drivers/dos/video.h
index bb40fd00dfb..55560ee25b8 100644
--- a/src/mesa/drivers/dos/video.h
+++ b/src/mesa/drivers/dos/video.h
@@ -1,64 +1,64 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef VIDEO_H_included
-#define VIDEO_H_included
-
-typedef int fixed;
-
-#define VL_GET_CARD_NAME 0x0100
-#define VL_GET_VRAM 0x0101
-#define VL_GET_CI_PREC 0x0200
-#define VL_GET_HPIXELS 0x0201
-#define VL_GET_SCREEN_SIZE 0x0202
-
-extern int (*vl_mixfix) (fixed r, fixed g, fixed b);
-extern int (*vl_mixrgb) (const unsigned char rgb[]);
-extern int (*vl_mixrgba) (const unsigned char rgba[]);
-extern void (*vl_getrgba) (unsigned int offset, unsigned char rgba[4]);
-
-extern void (*vl_clear) (int color);
-extern void (*vl_rect) (int x, int y, int width, int height, int color);
-extern void (*vl_flip) (void);
-extern void (*vl_putpixel) (unsigned int offset, int color);
-extern int (*vl_getpixel) (unsigned int offset);
-
-void vl_setCI (int index, float red, float green, float blue);
-
-int vl_sync_buffer (void **buffer, int x, int y, int width, int height);
-int vl_get (int pname, int *params);
-
-void vl_video_exit (void);
-int vl_video_init (int width, int height, int bpp, int rgb, int refresh);
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef VIDEO_H_included
+#define VIDEO_H_included
+
+typedef int fixed;
+
+#define VL_GET_CARD_NAME 0x0100
+#define VL_GET_VRAM 0x0101
+#define VL_GET_CI_PREC 0x0200
+#define VL_GET_HPIXELS 0x0201
+#define VL_GET_SCREEN_SIZE 0x0202
+
+extern int (*vl_mixfix) (fixed r, fixed g, fixed b);
+extern int (*vl_mixrgb) (const unsigned char rgb[]);
+extern int (*vl_mixrgba) (const unsigned char rgba[]);
+extern void (*vl_getrgba) (unsigned int offset, unsigned char rgba[4]);
+
+extern void (*vl_clear) (int color);
+extern void (*vl_rect) (int x, int y, int width, int height, int color);
+extern void (*vl_flip) (void);
+extern void (*vl_putpixel) (unsigned int offset, int color);
+extern int (*vl_getpixel) (unsigned int offset);
+
+void vl_setCI (int index, float red, float green, float blue);
+
+int vl_sync_buffer (void **buffer, int x, int y, int width, int height);
+int vl_get (int pname, int *params);
+
+void vl_video_exit (void);
+int vl_video_init (int width, int height, int bpp, int rgb, int refresh);
+
+#endif
diff --git a/src/mesa/drivers/dos/virtual.S b/src/mesa/drivers/dos/virtual.S
index 0df584150f3..c5cc1fe86f8 100644
--- a/src/mesa/drivers/dos/virtual.S
+++ b/src/mesa/drivers/dos/virtual.S
@@ -1,489 +1,489 @@
-/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
- .file "virtual.S"
-
-/*
- * extern void *vl_current_draw_buffer;
- * extern int vl_current_width, vl_current_bytes;
- */
-
- .text
-
-/* Desc: void v_clear8 (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_clear8
-_v_clear8:
- movl 4(%esp), %eax
- movb %al, %ah
- pushw %ax
- pushw %ax
- popl %eax
- jmp _v_clear_common
-
-/* Desc: void v_clear16 (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_clear16
-_v_clear16:
- movl 4(%esp), %eax
- pushw %ax
- pushw %ax
- popl %eax
- jmp _v_clear_common
-
-/* Desc: void v_clear32 (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_clear32
-_v_clear32:
- movl 4(%esp), %eax
- .balign 4
-_v_clear_common:
- movl _vl_current_bytes, %ecx
- movl _vl_current_draw_buffer, %edx
- shrl $2, %ecx
- .balign 4
- 0:
- movl %eax, (%edx)
- addl $4, %edx
- decl %ecx
- jnz 0b
- ret
-
-/* Desc: void v_clear8_mmx (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_clear8_mmx
-_v_clear8_mmx:
-#ifdef USE_MMX_ASM
- movd 4(%esp), %mm0
- punpcklbw %mm0, %mm0
- punpcklwd %mm0, %mm0
- jmp _v_clear_common_mmx
-#endif
-
-/* Desc: void v_clear16_mmx (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_clear16_mmx
-_v_clear16_mmx:
-#ifdef USE_MMX_ASM
- movd 4(%esp), %mm0
- punpcklwd %mm0, %mm0
- jmp _v_clear_common_mmx
-#endif
-
-/* Desc: void v_clear32_mmx (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_clear32_mmx
-_v_clear32_mmx:
-#ifdef USE_MMX_ASM
- movd 4(%esp), %mm0
- .balign 4
-_v_clear_common_mmx:
- punpckldq %mm0, %mm0
- movl _vl_current_bytes, %ecx
- movl _vl_current_draw_buffer, %edx
- shrl $3, %ecx
- .balign 4
- 0:
- movq %mm0, (%edx)
- addl $8, %edx
- decl %ecx
- jnz 0b
- emms
-#endif
- ret
-
-/* Desc: void v_clear24 (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_clear24
-_v_clear24:
- movl $0xaaaaaaab, %eax
- mull _vl_current_bytes
- movl 4(%esp), %eax
- movl %edx, %ecx
- pushl %ebx
- movl _vl_current_draw_buffer, %edx
- shrl %ecx
- movb 10(%esp), %bl
- .balign 4
- 0:
- movw %ax, (%edx)
- movb %bl, 2(%edx)
- addl $3, %edx
- decl %ecx
- jnz 0b
- popl %ebx
- ret
-
-/* Desc: void v_clear24_mmx (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_clear24_mmx
-_v_clear24_mmx:
-#ifdef USE_MMX_ASM
- movl 4(%esp), %eax
- movl %eax, %edx
- movl %eax, %ecx
- shll $16, %edx
- rorl $8, %ecx
- movw %cx, %dx
- rorl $16, %ecx
- movb %dh, %cl
- shll $8, %eax
- movb %ch, %al
- rorl $8, %eax
-
- pushl %edx
- pushl %eax
- movq (%esp), %mm0
- pushl %ecx
- movq (%esp), %mm1
- pushl %edx
- movq (%esp), %mm2
-
- movl $0xaaaaaaab, %eax
- mull _vl_current_bytes
- movl %edx, %ecx
- movl _vl_current_draw_buffer, %edx
- shrl $4, %ecx
- .balign 4
- 0:
- movq %mm0, (%edx)
- movq %mm1, 8(%edx)
- movq %mm2, 16(%edx)
- addl $24, %edx
- decl %ecx
- jnz 0b
- emms
- addl $16, %esp
-#endif
- ret
-
-/* Desc: void v_rect8 (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_rect8
-_v_rect8:
- cld
- pushl %esi
- pushl %edi
- movl 28(%esp), %eax
- movl _vl_current_width, %esi
- movl 16(%esp), %edi
- movb %al, %ah
- movl 20(%esp), %ecx
- imull %esi, %edi
- movl 24(%esp), %edx
- subl %ecx, %esi
- addl 12(%esp), %edi
- pushw %ax
- pushw %ax
- pushl %ds
- popl %es
- addl _vl_current_draw_buffer, %edi
- popl %eax
- pushl %ebx
- movl %ecx, %ebx
- andl $3, %ebx
- .balign 4
- 0:
- pushl %ecx
- .balign 4
- 1:
- shrl $2, %ecx
- rep; stosl
- testl %ebx, %ebx
- jz 2f
- movl %ebx, %ecx
- rep; stosb
- .balign 4
- 2:
- popl %ecx
- addl %esi, %edi
- decl %edx
- jnz 0b
- popl %ebx
- popl %edi
- popl %esi
- ret
-
-/* Desc: void v_rect16 (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_rect16
-_v_rect16:
- cld
- pushl %esi
- pushl %edi
- movl 28(%esp), %eax
- movl _vl_current_width, %esi
- movl 16(%esp), %edi
- movl 20(%esp), %ecx
- imull %esi, %edi
- movl 24(%esp), %edx
- subl %ecx, %esi
- addl 12(%esp), %edi
- pushw %ax
- shll %esi
- pushw %ax
- shll %edi
- pushl %ds
- popl %es
- addl _vl_current_draw_buffer, %edi
- popl %eax
- .balign 4
- 0:
- pushl %ecx
- .balign 4
- 1:
- shrl %ecx
- rep; stosl
- jnc 2f
- stosw
- .balign 4
- 2:
- popl %ecx
- addl %esi, %edi
- decl %edx
- jnz 0b
- popl %edi
- popl %esi
- ret
-
-/* Desc: void v_rect24 (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_rect24
-_v_rect24:
- pushl %esi
- pushl %edi
- movl 28(%esp), %eax
- movl _vl_current_width, %esi
- movl 16(%esp), %edi
- movl 20(%esp), %ecx
- imull %esi, %edi
- movl 24(%esp), %edx
- subl %ecx, %esi
- addl 12(%esp), %edi
- leal (%esi, %esi, 2), %esi
- pushl %ebx
- leal (%edi, %edi, 2), %edi
- movl %eax, %ebx
- addl _vl_current_draw_buffer, %edi
- shrl $16, %ebx
- .balign 4
- 0:
- pushl %ecx
- .balign 4
- 1:
- movw %ax, (%edi)
- movb %bl, 2(%edi)
- addl $3, %edi
- decl %ecx
- jnz 1b
- popl %ecx
- addl %esi, %edi
- decl %edx
- jnz 0b
- popl %ebx
- popl %edi
- popl %esi
- ret
-
-/* Desc: void v_rect32 (int color);
- *
- * In : color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_rect32
-_v_rect32:
- pushl %esi
- pushl %edi
- movl _vl_current_width, %esi
- movl 16(%esp), %edi
- movl 20(%esp), %ecx
- imull %esi, %edi
- movl 24(%esp), %edx
- subl %ecx, %esi
- addl 12(%esp), %edi
- shll $2, %esi
- shll $2, %edi
- movl 28(%esp), %eax
- addl _vl_current_draw_buffer, %edi
- .balign 4
- 0:
- pushl %ecx
- .balign 4
- 1:
- movl %eax, (%edi)
- addl $4, %edi
- decl %ecx
- jnz 1b
- popl %ecx
- addl %esi, %edi
- decl %edx
- jnz 0b
- popl %edi
- popl %esi
- ret
-
-/* Desc: void v_putpixel8 (unsigned int offset, int color);
- *
- * In : offset within buffer, color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_putpixel8
-_v_putpixel8:
- movl 8(%esp), %ecx
- movl 4(%esp), %edx
- movl _vl_current_draw_buffer, %eax
- movb %cl, (%eax,%edx)
- ret
-
-/* Desc: void v_putpixel16 (unsigned int offset, int color);
- *
- * In : offset within buffer, color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_putpixel16
-_v_putpixel16:
- movl 8(%esp), %ecx
- movl 4(%esp), %edx
- movl _vl_current_draw_buffer, %eax
- movw %cx, (%eax,%edx,2)
- ret
-
-/* Desc: void v_putpixel24 (unsigned int offset, int color);
- *
- * In : offset within buffer, color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_putpixel24
-_v_putpixel24:
- movl 4(%esp), %eax
- movl 8(%esp), %edx
- movl _vl_current_draw_buffer, %ecx
- leal (%eax,%eax,2), %eax
- movw %dx, (%ecx,%eax)
- shrl $16, %edx
- movb %dl, 2(%ecx,%eax)
- ret
-
-/* Desc: void v_putpixel32 (unsigned int offset, int color);
- *
- * In : offset within buffer, color
- * Out : -
- *
- * Note: uses current draw buffer
- */
- .p2align 5,,31
- .global _v_putpixel32
-_v_putpixel32:
- movl 8(%esp), %ecx
- movl 4(%esp), %edx
- movl _vl_current_draw_buffer, %eax
- movl %ecx, (%eax,%edx,4)
- ret
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.3 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+ .file "virtual.S"
+
+/*
+ * extern void *vl_current_draw_buffer;
+ * extern int vl_current_width, vl_current_bytes;
+ */
+
+ .text
+
+/* Desc: void v_clear8 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_clear8
+_v_clear8:
+ movl 4(%esp), %eax
+ movb %al, %ah
+ pushw %ax
+ pushw %ax
+ popl %eax
+ jmp _v_clear_common
+
+/* Desc: void v_clear16 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_clear16
+_v_clear16:
+ movl 4(%esp), %eax
+ pushw %ax
+ pushw %ax
+ popl %eax
+ jmp _v_clear_common
+
+/* Desc: void v_clear32 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_clear32
+_v_clear32:
+ movl 4(%esp), %eax
+ .balign 4
+_v_clear_common:
+ movl _vl_current_bytes, %ecx
+ movl _vl_current_draw_buffer, %edx
+ shrl $2, %ecx
+ .balign 4
+ 0:
+ movl %eax, (%edx)
+ addl $4, %edx
+ decl %ecx
+ jnz 0b
+ ret
+
+/* Desc: void v_clear8_mmx (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_clear8_mmx
+_v_clear8_mmx:
+#ifdef USE_MMX_ASM
+ movd 4(%esp), %mm0
+ punpcklbw %mm0, %mm0
+ punpcklwd %mm0, %mm0
+ jmp _v_clear_common_mmx
+#endif
+
+/* Desc: void v_clear16_mmx (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_clear16_mmx
+_v_clear16_mmx:
+#ifdef USE_MMX_ASM
+ movd 4(%esp), %mm0
+ punpcklwd %mm0, %mm0
+ jmp _v_clear_common_mmx
+#endif
+
+/* Desc: void v_clear32_mmx (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_clear32_mmx
+_v_clear32_mmx:
+#ifdef USE_MMX_ASM
+ movd 4(%esp), %mm0
+ .balign 4
+_v_clear_common_mmx:
+ punpckldq %mm0, %mm0
+ movl _vl_current_bytes, %ecx
+ movl _vl_current_draw_buffer, %edx
+ shrl $3, %ecx
+ .balign 4
+ 0:
+ movq %mm0, (%edx)
+ addl $8, %edx
+ decl %ecx
+ jnz 0b
+ emms
+#endif
+ ret
+
+/* Desc: void v_clear24 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_clear24
+_v_clear24:
+ movl $0xaaaaaaab, %eax
+ mull _vl_current_bytes
+ movl 4(%esp), %eax
+ movl %edx, %ecx
+ pushl %ebx
+ movl _vl_current_draw_buffer, %edx
+ shrl %ecx
+ movb 10(%esp), %bl
+ .balign 4
+ 0:
+ movw %ax, (%edx)
+ movb %bl, 2(%edx)
+ addl $3, %edx
+ decl %ecx
+ jnz 0b
+ popl %ebx
+ ret
+
+/* Desc: void v_clear24_mmx (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_clear24_mmx
+_v_clear24_mmx:
+#ifdef USE_MMX_ASM
+ movl 4(%esp), %eax
+ movl %eax, %edx
+ movl %eax, %ecx
+ shll $16, %edx
+ rorl $8, %ecx
+ movw %cx, %dx
+ rorl $16, %ecx
+ movb %dh, %cl
+ shll $8, %eax
+ movb %ch, %al
+ rorl $8, %eax
+
+ pushl %edx
+ pushl %eax
+ movq (%esp), %mm0
+ pushl %ecx
+ movq (%esp), %mm1
+ pushl %edx
+ movq (%esp), %mm2
+
+ movl $0xaaaaaaab, %eax
+ mull _vl_current_bytes
+ movl %edx, %ecx
+ movl _vl_current_draw_buffer, %edx
+ shrl $4, %ecx
+ .balign 4
+ 0:
+ movq %mm0, (%edx)
+ movq %mm1, 8(%edx)
+ movq %mm2, 16(%edx)
+ addl $24, %edx
+ decl %ecx
+ jnz 0b
+ emms
+ addl $16, %esp
+#endif
+ ret
+
+/* Desc: void v_rect8 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_rect8
+_v_rect8:
+ cld
+ pushl %esi
+ pushl %edi
+ movl 28(%esp), %eax
+ movl _vl_current_width, %esi
+ movl 16(%esp), %edi
+ movb %al, %ah
+ movl 20(%esp), %ecx
+ imull %esi, %edi
+ movl 24(%esp), %edx
+ subl %ecx, %esi
+ addl 12(%esp), %edi
+ pushw %ax
+ pushw %ax
+ pushl %ds
+ popl %es
+ addl _vl_current_draw_buffer, %edi
+ popl %eax
+ pushl %ebx
+ movl %ecx, %ebx
+ andl $3, %ebx
+ .balign 4
+ 0:
+ pushl %ecx
+ .balign 4
+ 1:
+ shrl $2, %ecx
+ rep; stosl
+ testl %ebx, %ebx
+ jz 2f
+ movl %ebx, %ecx
+ rep; stosb
+ .balign 4
+ 2:
+ popl %ecx
+ addl %esi, %edi
+ decl %edx
+ jnz 0b
+ popl %ebx
+ popl %edi
+ popl %esi
+ ret
+
+/* Desc: void v_rect16 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_rect16
+_v_rect16:
+ cld
+ pushl %esi
+ pushl %edi
+ movl 28(%esp), %eax
+ movl _vl_current_width, %esi
+ movl 16(%esp), %edi
+ movl 20(%esp), %ecx
+ imull %esi, %edi
+ movl 24(%esp), %edx
+ subl %ecx, %esi
+ addl 12(%esp), %edi
+ pushw %ax
+ shll %esi
+ pushw %ax
+ shll %edi
+ pushl %ds
+ popl %es
+ addl _vl_current_draw_buffer, %edi
+ popl %eax
+ .balign 4
+ 0:
+ pushl %ecx
+ .balign 4
+ 1:
+ shrl %ecx
+ rep; stosl
+ jnc 2f
+ stosw
+ .balign 4
+ 2:
+ popl %ecx
+ addl %esi, %edi
+ decl %edx
+ jnz 0b
+ popl %edi
+ popl %esi
+ ret
+
+/* Desc: void v_rect24 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_rect24
+_v_rect24:
+ pushl %esi
+ pushl %edi
+ movl 28(%esp), %eax
+ movl _vl_current_width, %esi
+ movl 16(%esp), %edi
+ movl 20(%esp), %ecx
+ imull %esi, %edi
+ movl 24(%esp), %edx
+ subl %ecx, %esi
+ addl 12(%esp), %edi
+ leal (%esi, %esi, 2), %esi
+ pushl %ebx
+ leal (%edi, %edi, 2), %edi
+ movl %eax, %ebx
+ addl _vl_current_draw_buffer, %edi
+ shrl $16, %ebx
+ .balign 4
+ 0:
+ pushl %ecx
+ .balign 4
+ 1:
+ movw %ax, (%edi)
+ movb %bl, 2(%edi)
+ addl $3, %edi
+ decl %ecx
+ jnz 1b
+ popl %ecx
+ addl %esi, %edi
+ decl %edx
+ jnz 0b
+ popl %ebx
+ popl %edi
+ popl %esi
+ ret
+
+/* Desc: void v_rect32 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_rect32
+_v_rect32:
+ pushl %esi
+ pushl %edi
+ movl _vl_current_width, %esi
+ movl 16(%esp), %edi
+ movl 20(%esp), %ecx
+ imull %esi, %edi
+ movl 24(%esp), %edx
+ subl %ecx, %esi
+ addl 12(%esp), %edi
+ shll $2, %esi
+ shll $2, %edi
+ movl 28(%esp), %eax
+ addl _vl_current_draw_buffer, %edi
+ .balign 4
+ 0:
+ pushl %ecx
+ .balign 4
+ 1:
+ movl %eax, (%edi)
+ addl $4, %edi
+ decl %ecx
+ jnz 1b
+ popl %ecx
+ addl %esi, %edi
+ decl %edx
+ jnz 0b
+ popl %edi
+ popl %esi
+ ret
+
+/* Desc: void v_putpixel8 (unsigned int offset, int color);
+ *
+ * In : offset within buffer, color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_putpixel8
+_v_putpixel8:
+ movl 8(%esp), %ecx
+ movl 4(%esp), %edx
+ movl _vl_current_draw_buffer, %eax
+ movb %cl, (%eax,%edx)
+ ret
+
+/* Desc: void v_putpixel16 (unsigned int offset, int color);
+ *
+ * In : offset within buffer, color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_putpixel16
+_v_putpixel16:
+ movl 8(%esp), %ecx
+ movl 4(%esp), %edx
+ movl _vl_current_draw_buffer, %eax
+ movw %cx, (%eax,%edx,2)
+ ret
+
+/* Desc: void v_putpixel24 (unsigned int offset, int color);
+ *
+ * In : offset within buffer, color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_putpixel24
+_v_putpixel24:
+ movl 4(%esp), %eax
+ movl 8(%esp), %edx
+ movl _vl_current_draw_buffer, %ecx
+ leal (%eax,%eax,2), %eax
+ movw %dx, (%ecx,%eax)
+ shrl $16, %edx
+ movb %dl, 2(%ecx,%eax)
+ ret
+
+/* Desc: void v_putpixel32 (unsigned int offset, int color);
+ *
+ * In : offset within buffer, color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ .p2align 5,,31
+ .global _v_putpixel32
+_v_putpixel32:
+ movl 8(%esp), %ecx
+ movl 4(%esp), %edx
+ movl _vl_current_draw_buffer, %eax
+ movl %ecx, (%eax,%edx,4)
+ ret
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-05 01:50:39 +0000