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Diffstat (limited to 'src/mesa/drivers/dri/tdfx/tdfx_vb.c')
-rw-r--r--src/mesa/drivers/dri/tdfx/tdfx_vb.c365
1 files changed, 365 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_vb.c b/src/mesa/drivers/dri/tdfx/tdfx_vb.c
new file mode 100644
index 00000000000..de5b9360e0b
--- /dev/null
+++ b/src/mesa/drivers/dri/tdfx/tdfx_vb.c
@@ -0,0 +1,365 @@
+/*
+ * GLX Hardware Device Driver for Intel i810
+ * Copyright (C) 1999 Keith Whitwell
+ *
+ * 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
+ * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS 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.
+ *
+ *
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/tdfx_vb.c,v 1.3 2002/10/30 12:52:01 alanh Exp $ */
+
+#include "glheader.h"
+#include "mtypes.h"
+#include "imports.h"
+#include "macros.h"
+#include "colormac.h"
+
+#include "math/m_translate.h"
+#include "swrast_setup/swrast_setup.h"
+
+#include "tdfx_context.h"
+#include "tdfx_vb.h"
+#include "tdfx_tris.h"
+#include "tdfx_state.h"
+#include "tdfx_render.h"
+
+static void copy_pv_rgba4( GLcontext *ctx, GLuint edst, GLuint esrc )
+{
+ tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
+ GLubyte *tdfxverts = (GLubyte *)fxMesa->verts;
+ GLuint shift = fxMesa->vertex_stride_shift;
+ tdfxVertex *dst = (tdfxVertex *)(tdfxverts + (edst << shift));
+ tdfxVertex *src = (tdfxVertex *)(tdfxverts + (esrc << shift));
+ dst->ui[4] = src->ui[4];
+}
+
+static void copy_pv_rgba3( GLcontext *ctx, GLuint edst, GLuint esrc )
+{
+ tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
+ GLubyte *tdfxverts = (GLubyte *)fxMesa->verts;
+ GLuint shift = fxMesa->vertex_stride_shift;
+ tdfxVertex *dst = (tdfxVertex *)(tdfxverts + (edst << shift));
+ tdfxVertex *src = (tdfxVertex *)(tdfxverts + (esrc << shift));
+ dst->ui[3] = src->ui[3];
+}
+
+typedef void (*emit_func)( GLcontext *, GLuint, GLuint, void *, GLuint );
+
+static struct {
+ emit_func emit;
+ interp_func interp;
+ copy_pv_func copy_pv;
+ GLboolean (*check_tex_sizes)( GLcontext *ctx );
+ GLuint vertex_size;
+ GLuint vertex_stride_shift;
+ GLuint vertex_format;
+} setup_tab[TDFX_MAX_SETUP];
+
+
+static void import_float_colors( GLcontext *ctx )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ struct gl_client_array *from = VB->ColorPtr[0];
+ struct gl_client_array *to = &TDFX_CONTEXT(ctx)->UbyteColor;
+ GLuint count = VB->Count;
+
+ if (!to->Ptr) {
+ to->Ptr = ALIGN_MALLOC( VB->Size * 4 * sizeof(GLubyte), 32 );
+ to->Type = GL_UNSIGNED_BYTE;
+ }
+
+ /* No need to transform the same value 3000 times.
+ */
+ if (!from->StrideB) {
+ to->StrideB = 0;
+ count = 1;
+ }
+ else
+ to->StrideB = 4 * sizeof(GLubyte);
+
+ _math_trans_4ub( (GLubyte (*)[4]) to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ from->Size,
+ 0,
+ count);
+
+ VB->ColorPtr[0] = to;
+}
+
+
+#define GET_COLOR(ptr, idx) (((GLchan (*)[4])((ptr)->Ptr))[idx])
+
+
+static void interp_extras( GLcontext *ctx,
+ GLfloat t,
+ GLuint dst, GLuint out, GLuint in,
+ GLboolean force_boundary )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+
+ /*fprintf(stderr, "%s\n", __FUNCTION__);*/
+
+ if (VB->ColorPtr[1]) {
+ INTERP_4CHAN( t,
+ GET_COLOR(VB->ColorPtr[1], dst),
+ GET_COLOR(VB->ColorPtr[1], out),
+ GET_COLOR(VB->ColorPtr[1], in) );
+ }
+
+ if (VB->EdgeFlag) {
+ VB->EdgeFlag[dst] = VB->EdgeFlag[out] || force_boundary;
+ }
+
+ setup_tab[TDFX_CONTEXT(ctx)->SetupIndex].interp(ctx, t, dst, out, in,
+ force_boundary);
+}
+
+static void copy_pv_extras( GLcontext *ctx, GLuint dst, GLuint src )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+
+ if (VB->ColorPtr[1]) {
+ COPY_CHAN4( GET_COLOR(VB->ColorPtr[1], dst),
+ GET_COLOR(VB->ColorPtr[1], src) );
+ }
+
+ setup_tab[TDFX_CONTEXT(ctx)->SetupIndex].copy_pv(ctx, dst, src);
+}
+
+
+
+#define IND (TDFX_XYZ_BIT|TDFX_RGBA_BIT)
+#define TAG(x) x##_wg
+#include "tdfx_vbtmp.h"
+
+/* Special for tdfx: fog requires w
+ */
+#define IND (TDFX_XYZ_BIT|TDFX_RGBA_BIT|TDFX_W_BIT)
+#define TAG(x) x##_wg_fog
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_XYZ_BIT|TDFX_RGBA_BIT|TDFX_W_BIT|TDFX_TEX0_BIT)
+#define TAG(x) x##_wgt0
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_XYZ_BIT|TDFX_RGBA_BIT|TDFX_W_BIT|TDFX_TEX0_BIT|TDFX_TEX1_BIT)
+#define TAG(x) x##_wgt0t1
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_XYZ_BIT|TDFX_RGBA_BIT|TDFX_W_BIT|TDFX_TEX0_BIT|TDFX_PTEX_BIT)
+#define TAG(x) x##_wgpt0
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_XYZ_BIT|TDFX_RGBA_BIT|TDFX_W_BIT|TDFX_TEX0_BIT|TDFX_TEX1_BIT|\
+ TDFX_PTEX_BIT)
+#define TAG(x) x##_wgpt0t1
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_RGBA_BIT)
+#define TAG(x) x##_g
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_TEX0_BIT)
+#define TAG(x) x##_t0
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_TEX0_BIT|TDFX_TEX1_BIT)
+#define TAG(x) x##_t0t1
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_RGBA_BIT|TDFX_TEX0_BIT)
+#define TAG(x) x##_gt0
+#include "tdfx_vbtmp.h"
+
+#define IND (TDFX_RGBA_BIT|TDFX_TEX0_BIT|TDFX_TEX1_BIT)
+#define TAG(x) x##_gt0t1
+#include "tdfx_vbtmp.h"
+
+
+
+static void init_setup_tab( void )
+{
+ init_wg();
+ init_wg_fog();
+ init_wgt0();
+ init_wgt0t1();
+ init_wgpt0();
+ init_wgpt0t1();
+
+ init_g();
+ init_t0();
+ init_t0t1();
+ init_gt0();
+ init_gt0t1();
+}
+
+
+void tdfxPrintSetupFlags(char *msg, GLuint flags )
+{
+ fprintf(stderr, "%s(%x): %s%s%s%s%s\n",
+ msg,
+ (int)flags,
+ (flags & TDFX_XYZ_BIT) ? " xyz," : "",
+ (flags & TDFX_W_BIT) ? " w," : "",
+ (flags & TDFX_RGBA_BIT) ? " rgba," : "",
+ (flags & TDFX_TEX0_BIT) ? " tex-0," : "",
+ (flags & TDFX_TEX1_BIT) ? " tex-1," : "");
+}
+
+
+
+void tdfxCheckTexSizes( GLcontext *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
+
+ if (!setup_tab[fxMesa->SetupIndex].check_tex_sizes(ctx)) {
+ GLuint ind = fxMesa->SetupIndex |= (TDFX_PTEX_BIT|TDFX_RGBA_BIT);
+
+ /* Tdfx handles projective textures nicely; just have to change
+ * up to the new vertex format.
+ */
+ if (setup_tab[ind].vertex_format != fxMesa->vertexFormat) {
+ FLUSH_BATCH(fxMesa);
+ fxMesa->dirty |= TDFX_UPLOAD_VERTEX_LAYOUT;
+ fxMesa->vertexFormat = setup_tab[ind].vertex_format;
+ fxMesa->vertex_stride_shift = setup_tab[ind].vertex_stride_shift;
+
+ /* This is required as we have just changed the vertex
+ * format, so the interp and copy routines must also change.
+ * In the unfilled and twosided cases we are using the
+ * swrast_setup ones anyway, so leave them in place.
+ */
+ if (!(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
+ tnl->Driver.Render.Interp = setup_tab[fxMesa->SetupIndex].interp;
+ tnl->Driver.Render.CopyPV = setup_tab[fxMesa->SetupIndex].copy_pv;
+ }
+ }
+ }
+}
+
+
+void tdfxBuildVertices( GLcontext *ctx, GLuint start, GLuint count,
+ GLuint newinputs )
+{
+ tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
+ GLubyte *v = (fxMesa->verts + (start<<fxMesa->vertex_stride_shift));
+ GLuint stride = 1<<fxMesa->vertex_stride_shift;
+
+ newinputs |= fxMesa->SetupNewInputs;
+ fxMesa->SetupNewInputs = 0;
+
+ if (!newinputs)
+ return;
+
+ if (newinputs & VERT_BIT_CLIP) {
+ setup_tab[fxMesa->SetupIndex].emit( ctx, start, count, v, stride );
+ } else {
+ GLuint ind = 0;
+
+ if (newinputs & VERT_BIT_COLOR0)
+ ind |= TDFX_RGBA_BIT;
+
+ if (newinputs & VERT_BIT_TEX0)
+ ind |= TDFX_TEX0_BIT;
+
+ if (newinputs & VERT_BIT_TEX1)
+ ind |= TDFX_TEX0_BIT|TDFX_TEX1_BIT;
+
+ if (fxMesa->SetupIndex & TDFX_PTEX_BIT)
+ ind = ~0;
+
+ ind &= fxMesa->SetupIndex;
+
+ if (ind) {
+ setup_tab[ind].emit( ctx, start, count, v, stride );
+ }
+ }
+}
+
+
+void tdfxChooseVertexState( GLcontext *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
+ GLuint ind = TDFX_XYZ_BIT|TDFX_RGBA_BIT;
+
+ if (ctx->Texture._EnabledUnits & 0x2)
+ /* unit 1 enabled */
+ ind |= TDFX_W_BIT|TDFX_TEX1_BIT|TDFX_TEX0_BIT;
+ else if (ctx->Texture._EnabledUnits & 0x1)
+ /* unit 0 enabled */
+ ind |= TDFX_W_BIT|TDFX_TEX0_BIT;
+ else if (ctx->Fog.Enabled)
+ ind |= TDFX_W_BIT;
+
+ fxMesa->SetupIndex = ind;
+
+ if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
+ tnl->Driver.Render.Interp = interp_extras;
+ tnl->Driver.Render.CopyPV = copy_pv_extras;
+ } else {
+ tnl->Driver.Render.Interp = setup_tab[ind].interp;
+ tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
+ }
+
+ if (setup_tab[ind].vertex_format != fxMesa->vertexFormat) {
+ FLUSH_BATCH(fxMesa);
+ fxMesa->dirty |= TDFX_UPLOAD_VERTEX_LAYOUT;
+ fxMesa->vertexFormat = setup_tab[ind].vertex_format;
+ fxMesa->vertex_stride_shift = setup_tab[ind].vertex_stride_shift;
+ }
+}
+
+
+
+void tdfxInitVB( GLcontext *ctx )
+{
+ tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
+ GLuint size = TNL_CONTEXT(ctx)->vb.Size;
+ static int firsttime = 1;
+ if (firsttime) {
+ init_setup_tab();
+ firsttime = 0;
+ }
+
+ fxMesa->verts = (GLubyte *)ALIGN_MALLOC(size * sizeof(tdfxVertex), 32);
+ fxMesa->vertexFormat = setup_tab[TDFX_XYZ_BIT|TDFX_RGBA_BIT].vertex_format;
+ fxMesa->vertex_stride_shift = setup_tab[(TDFX_XYZ_BIT|
+ TDFX_RGBA_BIT)].vertex_stride_shift;
+ fxMesa->SetupIndex = TDFX_XYZ_BIT|TDFX_RGBA_BIT;
+}
+
+
+void tdfxFreeVB( GLcontext *ctx )
+{
+ tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
+ if (fxMesa->verts) {
+ ALIGN_FREE(fxMesa->verts);
+ fxMesa->verts = 0;
+ }
+
+ if (fxMesa->UbyteColor.Ptr) {
+ ALIGN_FREE(fxMesa->UbyteColor.Ptr);
+ fxMesa->UbyteColor.Ptr = 0;
+ }
+
+}
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