add tdfx DRI driver

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 0000000000..de5b9360e0
--- /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;
+   }
+
+}