diff options
| author | Brian Paul <[email protected]> | 2002-02-12 03:24:56 +0000 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2002-02-12 03:24:56 +0000 |
| commit | db41d2ea8c8b6ceddf54f87268085a83d8f342ba (patch) | |
| tree | 5fb285d9f22e09a2c6fd1cd09b3a13d2329d5553 /src/mesa/drivers/dos/dvesa.h | |
| parent | cc27365d775632647a1d07d78203421d27e8cd1c (diff) | |
Daniel Borca's new DOS/DJGPP driver.
Diffstat (limited to 'src/mesa/drivers/dos/dvesa.h')
| -rw-r--r-- | src/mesa/drivers/dos/dvesa.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/mesa/drivers/dos/dvesa.h b/src/mesa/drivers/dos/dvesa.h new file mode 100644 index 00000000000..aaa4be7950f --- /dev/null +++ b/src/mesa/drivers/dos/dvesa.h @@ -0,0 +1,127 @@ +/*
+ * 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 v0.1 for Mesa 4.0
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : [email protected]
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef DVESA_H_included
+#define DVESA_H_included
+
+typedef unsigned char word8;
+typedef unsigned short word16;
+typedef unsigned long word32;
+
+struct dvmode;
+
+extern int (*dv_color) (const unsigned char rgba[]);
+extern void (*dv_dump_virtual) (void *buffer, int width, int height, int offset, int delta);
+extern void (*dv_clear_virtual) (void *buffer, int len, int color);
+
+struct dvmode *dv_select_mode (int x, int y, int width, int height, int depth, int *delta, int *offset);
+void dv_fillrect (void *buffer, int bwidth, int x, int y, int width, int height, int color);
+
+/*
+ * not so public...
+ */
+extern int _rgb_scale_5[32];
+extern int _rgb_scale_6[64];
+
+/*
+ * dv_putpixel inlines
+ */
+#define dv_putpixel15 dv_putpixel16
+extern __inline__ void dv_putpixel16 (void *buffer, int offset, int color)
+{
+ ((word16 *)buffer)[offset] = (word16)color;
+}
+extern __inline__ void dv_putpixel24 (void *buffer, int offset, int color)
+{
+ *(word16 *)(buffer+offset*3) = (word16)color;
+ *(word8 *)(buffer+offset*3+2) = (word8)(color>>16);
+}
+extern __inline__ void dv_putpixel32 (void *buffer, int offset, int color)
+{
+ ((word32 *)buffer)[offset] = color;
+}
+
+/*
+ * dv_color inlines
+ */
+extern __inline__ int dv_color15 (const unsigned char rgba[])
+{
+ return ((rgba[0]>>3)<<10)|((rgba[1]>>3)<<5)|(rgba[2]>>3);
+}
+extern __inline__ int dv_color16 (const unsigned char rgba[])
+{
+ return ((rgba[0]>>3)<<11)|((rgba[1]>>2)<<5)|(rgba[2]>>3);
+}
+#define dv_color24 dv_color32
+extern __inline__ int dv_color32 (const unsigned char rgba[])
+{
+ return (rgba[0]<<16)|(rgba[1]<<8)|(rgba[2]);
+}
+
+/*
+ * dv_getrgba inlines
+ */
+extern __inline__ void dv_getrgba15 (void *buffer, int offset, unsigned char rgba[4])
+{
+ int c = ((word16 *)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;
+}
+extern __inline__ void dv_getrgba16 (void *buffer, int offset, unsigned char rgba[4])
+{
+ int c = ((word16 *)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;
+}
+extern __inline__ void dv_getrgba24 (void *buffer, int offset, unsigned char rgba[4])
+{
+ int c = *(word32 *)(buffer+offset*3);
+ rgba[0] = c >> 16;
+ rgba[1] = c >> 8;
+ rgba[2] = c;
+ rgba[3] = 255;
+}
+extern __inline__ void dv_getrgba32 (void *buffer, int offset, unsigned char rgba[4])
+{
+ int c = ((word32 *)buffer)[offset];
+ rgba[0] = c >> 16;
+ rgba[1] = c >> 8;
+ rgba[2] = c;
+ rgba[3] = 255;
+}
+
+#endif
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