patch to import Jon Smirl's work from Bitkeeper

1 files changed, 834 insertions, 0 deletions

diff --git a/src/mesa/tnl_dd/t_dd_vbtmp.h b/src/mesa/tnl_dd/t_dd_vbtmp.h
new file mode 100644
index 0000000000..5aad0b5622
--- /dev/null
+++ b/src/mesa/tnl_dd/t_dd_vbtmp.h
@@ -0,0 +1,834 @@
+
+/*
+ * 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.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+
+/* Unlike the other templates here, this assumes quite a bit about the
+ * underlying hardware.  Specifically it assumes a d3d-like vertex
+ * format, with a layout more or less constrained to look like the
+ * following:
+ *
+ * union {
+ *    struct {
+ *        float x, y, z, w;
+ *        struct { char r, g, b, a; } color;
+ *        struct { char r, g, b, fog; } spec;
+ *        float u0, v0;
+ *        float u1, v1;
+ *        float u2, v2;
+ *        float u3, v3;
+ *    } v;
+ *    struct {
+ *        float x, y, z, w;
+ *        struct { char r, g, b, a; } color;
+ *        struct { char r, g, b, fog; } spec;
+ *        float u0, v0, q0;
+ *        float u1, v1, q1;
+ *        float u2, v2, q2;
+ *        float u3, v3, q3;
+ *    } pv;
+ *    struct {
+ *        float x, y, z;
+ *        struct { char r, g, b, a; } color;
+ *    } tv;
+ *    float f[16];
+ *    unsigned int ui[16];
+ *    unsigned char ub4[4][16];
+ * }
+ *
+ 
+ * VERTEX:   hw vertex type as above
+ * VERTEX_COLOR: hw color struct type in VERTEX
+ *
+ * DO_XYZW:  Emit xyz and maybe w coordinates.
+ * DO_RGBA:  Emit color.
+ * DO_SPEC:  Emit specular color.
+ * DO_FOG:   Emit fog coordinate in specular alpha.
+ * DO_TEX0:  Emit tex0 u,v coordinates.
+ * DO_TEX1:  Emit tex1 u,v coordinates.
+ * DO_TEX2:  Emit tex2 u,v coordinates.
+ * DO_TEX3:  Emit tex3 u,v coordinates.
+ * DO_PTEX:  Emit tex0,1,2,3 q coordinates where possible.
+ *
+ * HAVE_RGBA_COLOR: Hardware takes color in rgba order (else bgra).
+ *
+ * HAVE_HW_VIEWPORT:  Hardware performs viewport transform.
+ * HAVE_HW_DIVIDE:  Hardware performs perspective divide.
+ *
+ * HAVE_TINY_VERTICES:  Hardware understands v.tv format.
+ * HAVE_PTEX_VERTICES:  Hardware understands v.pv format.
+ * HAVE_NOTEX_VERTICES:  Hardware understands v.v format with texcount 0.
+ *
+ * Additionally, this template assumes it is emitting *transformed*
+ * vertices; the modifications to emit untransformed vertices (ie. to
+ * t&l hardware) are probably too great to cooexist with the code
+ * already in this file.
+ *
+ * NOTE: The PTEX vertex format always includes TEX0 and TEX1, even if
+ * only TEX0 is enabled, in order to maintain a vertex size which is
+ * an exact number of quadwords.
+ */
+
+#if (HAVE_HW_VIEWPORT)
+#define VIEWPORT_X(dst,x) dst = x
+#define VIEWPORT_Y(dst,y) dst = y
+#define VIEWPORT_Z(dst,z) dst = z
+#else
+#define VIEWPORT_X(dst,x) dst = s[0]  * x + s[12]
+#define VIEWPORT_Y(dst,y) dst = s[5]  * y + s[13]
+#define VIEWPORT_Z(dst,z) dst = s[10] * z + s[14]
+#endif
+
+#if (HAVE_HW_DIVIDE && !HAVE_PTEX_VERTICES)
+#error "can't cope with this combination" 
+#endif 
+
+#ifndef LOCALVARS
+#define LOCALVARS
+#endif
+
+#ifndef CHECK_HW_DIVIDE
+#define CHECK_HW_DIVIDE 1
+#endif
+
+#if (HAVE_HW_DIVIDE || DO_SPEC || DO_TEX0 || DO_FOG || !HAVE_TINY_VERTICES)
+
+static void TAG(emit)( GLcontext *ctx,
+		       GLuint start, GLuint end,
+		       void *dest,
+		       GLuint stride )
+{
+   LOCALVARS
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   GLfloat (*tc0)[4], (*tc1)[4], (*fog)[4];
+   GLfloat (*tc2)[4], (*tc3)[4];
+   GLubyte (*col)[4], (*spec)[4];
+   GLuint tc0_stride, tc1_stride, col_stride, spec_stride, fog_stride;
+   GLuint tc2_stride, tc3_stride;
+   GLuint tc0_size, tc1_size;
+   GLuint tc2_size, tc3_size;
+   GLfloat (*coord)[4];
+   GLuint coord_stride;
+   VERTEX *v = (VERTEX *)dest;
+   const GLfloat *s = GET_VIEWPORT_MAT();
+   const GLubyte *mask = VB->ClipMask;
+   int i;
+
+/*     fprintf(stderr, "%s(big) importable %d %d..%d\n",  */
+/*  	   __FUNCTION__, VB->importable_data, start, end); */
+
+   if (HAVE_HW_VIEWPORT && HAVE_HW_DIVIDE && CHECK_HW_DIVIDE) {
+      (void) s;
+      coord = VB->ClipPtr->data;
+      coord_stride = VB->ClipPtr->stride;
+   }
+   else {
+      coord = VB->NdcPtr->data;
+      coord_stride = VB->NdcPtr->stride;
+   }
+
+   if (DO_TEX3) {
+      const GLuint t3 = GET_TEXSOURCE(3);
+      tc3 = VB->TexCoordPtr[t3]->data;
+      tc3_stride = VB->TexCoordPtr[t3]->stride;
+      if (DO_PTEX)
+	 tc3_size = VB->TexCoordPtr[t3]->size;
+   }
+
+   if (DO_TEX2) {
+      const GLuint t2 = GET_TEXSOURCE(2);
+      tc2 = VB->TexCoordPtr[t2]->data;
+      tc2_stride = VB->TexCoordPtr[t2]->stride;
+      if (DO_PTEX)
+	 tc2_size = VB->TexCoordPtr[t2]->size;
+   }
+
+   if (DO_TEX1) {
+      const GLuint t1 = GET_TEXSOURCE(1);
+      tc1 = VB->TexCoordPtr[t1]->data;
+      tc1_stride = VB->TexCoordPtr[t1]->stride;
+      if (DO_PTEX)
+	 tc1_size = VB->TexCoordPtr[t1]->size;
+   }
+
+   if (DO_TEX0) {
+      const GLuint t0 = GET_TEXSOURCE(0);
+      tc0_stride = VB->TexCoordPtr[t0]->stride;
+      tc0 = VB->TexCoordPtr[t0]->data;
+      if (DO_PTEX) 
+	 tc0_size = VB->TexCoordPtr[t0]->size;
+   }
+
+   if (DO_RGBA) {
+      if (VB->ColorPtr[0]->Type != GL_UNSIGNED_BYTE)
+	 IMPORT_FLOAT_COLORS( ctx );
+      col = (GLubyte (*)[4])VB->ColorPtr[0]->Ptr;
+      col_stride = VB->ColorPtr[0]->StrideB;
+   }
+
+   if (DO_SPEC) {
+      if (VB->SecondaryColorPtr[0]) {
+	 if (VB->SecondaryColorPtr[0]->Type != GL_UNSIGNED_BYTE)
+	    IMPORT_FLOAT_SPEC_COLORS( ctx );
+	 spec = (GLubyte (*)[4])VB->SecondaryColorPtr[0]->Ptr;
+	 spec_stride = VB->SecondaryColorPtr[0]->StrideB;
+      } else {
+	 GLubyte tmp[4];
+	 spec = &tmp;
+	 spec_stride = 0;
+      }
+   }
+
+   if (DO_FOG) {
+      if (VB->FogCoordPtr) {
+	 fog = VB->FogCoordPtr->data;
+	 fog_stride = VB->FogCoordPtr->stride;
+      }
+      else {
+	 static GLfloat tmp[4] = {0, 0, 0, 0};
+	 fog = &tmp;
+	 fog_stride = 0;
+      }
+   }
+
+   if (VB->importable_data || (DO_SPEC && !spec_stride) || (DO_FOG && !fog_stride)) {
+      /* May have nonstandard strides:
+       */
+      if (start) {
+	 coord =  (GLfloat (*)[4])((GLubyte *)coord + start * coord_stride);
+	 if (DO_TEX0)
+	    tc0 =  (GLfloat (*)[4])((GLubyte *)tc0 + start * tc0_stride);
+	 if (DO_TEX1) 
+	    tc1 =  (GLfloat (*)[4])((GLubyte *)tc1 + start * tc1_stride);
+	 if (DO_TEX2) 
+	    tc2 =  (GLfloat (*)[4])((GLubyte *)tc2 + start * tc2_stride);
+	 if (DO_TEX3) 
+	    tc3 =  (GLfloat (*)[4])((GLubyte *)tc3 + start * tc3_stride);
+	 if (DO_RGBA) 
+	    STRIDE_4UB(col, start * col_stride);
+	 if (DO_SPEC)
+	    STRIDE_4UB(spec, start * spec_stride);
+	 if (DO_FOG)
+	    /*STRIDE_F(fog, start * fog_stride);*/
+	    fog =  (GLfloat (*)[4])((GLubyte *)fog + start * fog_stride);
+      }
+
+      for (i=start; i < end; i++, v = (VERTEX *)((GLubyte *)v + stride)) {
+	 if (DO_XYZW) {
+	    if (HAVE_HW_VIEWPORT || mask[i] == 0) {
+	       VIEWPORT_X(v->v.x, coord[0][0]);
+	       VIEWPORT_Y(v->v.y, coord[0][1]);
+	       VIEWPORT_Z(v->v.z, coord[0][2]);
+	       v->v.w = coord[0][3];
+	    }
+/*  	    fprintf(stderr, "vert %d: %.2f %.2f %.2f %.2f\n",  */
+/*  		    i, v->v.x, v->v.y, v->v.z, v->v.w); */
+	    coord =  (GLfloat (*)[4])((GLubyte *)coord +  coord_stride);
+	 }
+	 if (DO_RGBA) {
+	    if (HAVE_RGBA_COLOR) {
+	       *(GLuint *)&v->v.color = LE32_TO_CPU(*(GLuint *)&col[0]);
+	       STRIDE_4UB(col, col_stride);
+	    } else {
+	       v->v.color.blue  = col[0][2];
+	       v->v.color.green = col[0][1];
+	       v->v.color.red   = col[0][0];
+	       v->v.color.alpha = col[0][3];
+	       STRIDE_4UB(col, col_stride);
+	    }
+	 }
+	 if (DO_SPEC) {
+	    v->v.specular.red = spec[0][0];
+	    v->v.specular.green = spec[0][1];
+	    v->v.specular.blue = spec[0][2];
+	    STRIDE_4UB(spec, spec_stride);
+	 }
+	 if (DO_FOG) {
+	    v->v.specular.alpha = fog[0][0] * 255.0;
+	    /*STRIDE_F(fog, fog_stride);*/
+	    fog =  (GLfloat (*)[4])((GLubyte *)fog + fog_stride);
+	 }
+	 if (DO_TEX0) {
+	    v->v.u0 = tc0[0][0];
+	    v->v.v0 = tc0[0][1];
+	    if (DO_PTEX) {
+	       if (HAVE_PTEX_VERTICES) {
+		  if (tc0_size == 4) 
+		     v->pv.q0 = tc0[0][3];
+		  else
+		     v->pv.q0 = 1.0;
+	       } 
+	       else if (tc0_size == 4) {
+		  float rhw = 1.0 / tc0[0][3];
+		  v->v.w *= tc0[0][3];
+		  v->v.u0 *= rhw;
+		  v->v.v0 *= rhw;
+	       } 
+	    } 
+	    tc0 =  (GLfloat (*)[4])((GLubyte *)tc0 +  tc0_stride);
+	 }
+	 if (DO_TEX1) {
+	    if (DO_PTEX) {
+	       v->pv.u1 = tc1[0][0];
+	       v->pv.v1 = tc1[0][1];
+	       if (tc1_size == 4) 
+		  v->pv.q1 = tc1[0][3];
+	       else
+		  v->pv.q1 = 1.0;
+	    } 
+	    else {
+	       v->v.u1 = tc1[0][0];
+	       v->v.v1 = tc1[0][1];
+	    }
+	    tc1 =  (GLfloat (*)[4])((GLubyte *)tc1 +  tc1_stride);
+	 } 
+	 else if (DO_PTEX) {
+	    *(GLuint *)&v->pv.q1 = 0;	/* avoid culling on radeon */
+	 }
+	 if (DO_TEX2) {
+	    if (DO_PTEX) {
+	       v->pv.u2 = tc2[0][0];
+	       v->pv.v2 = tc2[0][1];
+	       if (tc2_size == 4) 
+		  v->pv.q2 = tc2[0][3];
+	       else
+		  v->pv.q2 = 1.0;
+	    } 
+	    else {
+	       v->v.u2 = tc2[0][0];
+	       v->v.v2 = tc2[0][1];
+	    }
+	    tc2 =  (GLfloat (*)[4])((GLubyte *)tc2 +  tc2_stride);
+	 } 
+	 if (DO_TEX3) {
+	    if (DO_PTEX) {
+	       v->pv.u3 = tc3[0][0];
+	       v->pv.v3 = tc3[0][1];
+	       if (tc3_size == 4) 
+		  v->pv.q3 = tc3[0][3];
+	       else
+		  v->pv.q3 = 1.0;
+	    } 
+	    else {
+	       v->v.u3 = tc3[0][0];
+	       v->v.v3 = tc3[0][1];
+	    }
+	    tc3 =  (GLfloat (*)[4])((GLubyte *)tc3 +  tc3_stride);
+	 } 
+      }
+   }
+   else {
+      for (i=start; i < end; i++, v = (VERTEX *)((GLubyte *)v + stride)) {
+	 if (DO_XYZW) {
+	    if (HAVE_HW_VIEWPORT || mask[i] == 0) {
+	       VIEWPORT_X(v->v.x, coord[i][0]);
+	       VIEWPORT_Y(v->v.y, coord[i][1]);
+	       VIEWPORT_Z(v->v.z, coord[i][2]);
+	       v->v.w = coord[i][3];
+	    }
+	 }
+	 if (DO_RGBA) {
+	    if (HAVE_RGBA_COLOR) {
+	       *(GLuint *)&v->v.color = LE32_TO_CPU(*(GLuint *)&col[i]);
+	    }
+	    else {
+	       v->v.color.blue  = col[i][2];
+	       v->v.color.green = col[i][1];
+	       v->v.color.red   = col[i][0];
+	       v->v.color.alpha = col[i][3];
+	    }
+	 }
+	 if (DO_SPEC) {
+	    v->v.specular.red   = spec[i][0];
+	    v->v.specular.green = spec[i][1];
+	    v->v.specular.blue  = spec[i][2];
+	 }
+	 if (DO_FOG) {
+	    v->v.specular.alpha = fog[i][0] * 255.0;
+	 }
+	 if (DO_TEX0) {
+	    v->v.u0 = tc0[i][0];
+	    v->v.v0 = tc0[i][1];
+	    if (DO_PTEX) {
+	       if (HAVE_PTEX_VERTICES) {
+		  if (tc0_size == 4) 
+		     v->pv.q0 = tc0[i][3];
+		  else
+		     v->pv.q0 = 1.0;
+
+		  v->pv.q1 = 0;	/* radeon */
+	       } 
+	       else if (tc0_size == 4) {
+		  float rhw = 1.0 / tc0[i][3];
+		  v->v.w *= tc0[i][3];
+		  v->v.u0 *= rhw;
+		  v->v.v0 *= rhw;
+	       } 
+	    } 
+	 }
+	 if (DO_TEX1) {
+	    if (DO_PTEX) {
+	       v->pv.u1 = tc1[i][0];
+	       v->pv.v1 = tc1[i][1];
+	       if (tc1_size == 4) 
+		  v->pv.q1 = tc1[i][3];
+	       else
+		  v->pv.q1 = 1.0;
+	    } 
+	    else {
+	       v->v.u1 = tc1[i][0];
+	       v->v.v1 = tc1[i][1];
+	    }
+	 }
+      }
+   }
+}
+#else
+#if DO_XYZW
+
+#if HAVE_HW_DIVIDE
+#error "cannot use tiny vertices with hw perspective divide"
+#endif
+
+static void TAG(emit)( GLcontext *ctx, GLuint start, GLuint end,
+		       void *dest, GLuint stride )
+{
+   LOCALVARS
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   GLubyte (*col)[4];
+   GLuint col_stride;
+   GLfloat (*coord)[4] = VB->NdcPtr->data;
+   GLuint coord_stride = VB->NdcPtr->stride;
+   GLfloat *v = (GLfloat *)dest;
+   const GLubyte *mask = VB->ClipMask;
+   const GLfloat *s = GET_VIEWPORT_MAT();
+   int i;
+
+   (void) s;
+
+   ASSERT(stride == 4);
+
+   if (VB->ColorPtr[0]->Type != GL_UNSIGNED_BYTE)
+      IMPORT_FLOAT_COLORS( ctx );
+
+   col = (GLubyte (*)[4])VB->ColorPtr[0]->Ptr;
+   col_stride = VB->ColorPtr[0]->StrideB;
+   ASSERT(VB->ColorPtr[0]->Type == GL_UNSIGNED_BYTE);
+
+/*     fprintf(stderr, "%s(small) importable %x\n",  */
+/*  	   __FUNCTION__, VB->importable_data); */
+
+   /* Pack what's left into a 4-dword vertex.  Color is in a different
+    * place, and there is no 'w' coordinate.
+    */
+   if (VB->importable_data) {
+      if (start) {
+	 coord =  (GLfloat (*)[4])((GLubyte *)coord + start * coord_stride);
+	 STRIDE_4UB(col, start * col_stride);
+      }
+
+      for (i=start; i < end; i++, v+=4) {
+	 if (HAVE_HW_VIEWPORT || mask[i] == 0) {
+	    VIEWPORT_X(v[0], coord[0][0]);
+	    VIEWPORT_Y(v[1], coord[0][1]);
+	    VIEWPORT_Z(v[2], coord[0][2]);
+	 }
+	 coord =  (GLfloat (*)[4])((GLubyte *)coord +  coord_stride);
+	 if (DO_RGBA) {
+	    if (HAVE_RGBA_COLOR) {
+	       *(GLuint *)&v[3] = LE32_TO_CPU(*(GLuint *)col);
+	    }
+	    else {
+	       VERTEX_COLOR *c = (VERTEX_COLOR *)&v[3];
+	       c->blue  = col[0][2];
+	       c->green = col[0][1];
+	       c->red   = col[0][0];
+	       c->alpha = col[0][3];
+	    }
+	    STRIDE_4UB( col, col_stride );
+	 }
+/*  	 fprintf(stderr, "vert %d: %.2f %.2f %.2f %x\n",  */
+/*  		 i, v[0], v[1], v[2], *(int *)&v[3]); */
+      }
+   }
+   else {
+      for (i=start; i < end; i++, v+=4) {
+	 if (HAVE_HW_VIEWPORT || mask[i] == 0) {
+	    VIEWPORT_X(v[0], coord[i][0]);
+	    VIEWPORT_Y(v[1], coord[i][1]);
+	    VIEWPORT_Z(v[2], coord[i][2]);
+	 }
+	 if (DO_RGBA) {
+	    if (HAVE_RGBA_COLOR) {
+	       *(GLuint *)&v[3] = LE32_TO_CPU(*(GLuint *)&col[i]);
+	    }
+	    else {
+	       VERTEX_COLOR *c = (VERTEX_COLOR *)&v[3];
+	       c->blue  = col[i][2];
+	       c->green = col[i][1];
+	       c->red   = col[i][0];
+	       c->alpha = col[i][3];
+	    }
+	 }
+/*  	 fprintf(stderr, "vert %d: %.2f %.2f %.2f %x\n",  */
+/*  		 i, v[0], v[1], v[2], *(int *)&v[3]); */
+
+      }
+   }
+}
+#else
+static void TAG(emit)( GLcontext *ctx, GLuint start, GLuint end,
+		       void *dest, GLuint stride )
+{
+   LOCALVARS
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   GLubyte (*col)[4];
+   GLuint col_stride;
+   GLfloat *v = (GLfloat *)dest;
+   int i;
+
+   if (VB->ColorPtr[0]->Type != GL_UNSIGNED_BYTE)
+      IMPORT_FLOAT_COLORS( ctx );
+
+   col = VB->ColorPtr[0]->Ptr;
+   col_stride = VB->ColorPtr[0]->StrideB;
+
+   if (start)
+      STRIDE_4UB(col, col_stride * start);
+
+   /* Need to figure out where color is:
+    */
+   if (GET_VERTEX_FORMAT() == TINY_VERTEX_FORMAT)
+      v += 3;
+   else
+      v += 4;
+
+   for (i=start; i < end; i++, STRIDE_F(v, stride)) {
+      if (HAVE_RGBA_COLOR) {
+	 *(GLuint *)v = LE32_TO_CPU(*(GLuint *)col[0]);
+      }
+      else {
+	 VERTEX_COLOR *c = (VERTEX_COLOR *)v;
+	 c->blue  = col[0][2];
+	 c->green = col[0][1];
+	 c->red   = col[0][0];
+	 c->alpha = col[0][3];
+      }
+      STRIDE_4UB( col, col_stride );
+   }
+}
+#endif /* emit */
+#endif /* emit */
+
+#if (DO_XYZW) && (DO_RGBA)
+
+
+#if (HAVE_PTEX_VERTICES)
+static GLboolean TAG(check_tex_sizes)( GLcontext *ctx )
+{
+   LOCALVARS
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+
+   /* Force 'missing' texcoords to something valid.
+    */
+   if (DO_TEX3 && VB->TexCoordPtr[2] == 0)
+      VB->TexCoordPtr[2] = VB->TexCoordPtr[3];
+
+   if (DO_TEX2 && VB->TexCoordPtr[1] == 0)
+      VB->TexCoordPtr[1] = VB->TexCoordPtr[2];
+
+   if (DO_TEX1 && VB->TexCoordPtr[0] == 0)
+      VB->TexCoordPtr[0] = VB->TexCoordPtr[1];
+
+   if (DO_PTEX)
+      return GL_TRUE;
+   
+   if ((DO_TEX3 && VB->TexCoordPtr[GET_TEXSOURCE(3)]->size == 4) ||
+       (DO_TEX2 && VB->TexCoordPtr[GET_TEXSOURCE(2)]->size == 4) ||
+       (DO_TEX1 && VB->TexCoordPtr[GET_TEXSOURCE(1)]->size == 4) ||
+       (DO_TEX0 && VB->TexCoordPtr[GET_TEXSOURCE(0)]->size == 4))
+      return GL_FALSE;
+
+   return GL_TRUE;
+}
+#else
+static GLboolean TAG(check_tex_sizes)( GLcontext *ctx )
+{
+   LOCALVARS
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+
+   /* Force 'missing' texcoords to something valid.
+    */
+   if (DO_TEX3 && VB->TexCoordPtr[2] == 0)
+      VB->TexCoordPtr[2] = VB->TexCoordPtr[3];
+
+   if (DO_TEX2 && VB->TexCoordPtr[1] == 0)
+      VB->TexCoordPtr[1] = VB->TexCoordPtr[2];
+
+   if (DO_TEX1 && VB->TexCoordPtr[0] == 0)
+      VB->TexCoordPtr[0] = VB->TexCoordPtr[1];
+
+   if (DO_PTEX)
+      return GL_TRUE;
+
+   /* No hardware support for projective texture.  Can fake it for
+    * TEX0 only.
+    */
+   if ((DO_TEX3 && VB->TexCoordPtr[GET_TEXSOURCE(3)]->size == 4) ||
+       (DO_TEX2 && VB->TexCoordPtr[GET_TEXSOURCE(2)]->size == 4) ||
+       (DO_TEX1 && VB->TexCoordPtr[GET_TEXSOURCE(1)]->size == 4)) {
+      PTEX_FALLBACK();
+      return GL_FALSE;
+   }
+
+   if (DO_TEX0 && VB->TexCoordPtr[GET_TEXSOURCE(0)]->size == 4) {
+      if (DO_TEX1 || DO_TEX2 || DO_TEX3) {
+	 PTEX_FALLBACK();
+      }
+      return GL_FALSE;
+   }
+
+   return GL_TRUE;
+}
+#endif /* ptex */
+
+
+static void TAG(interp)( GLcontext *ctx,
+			 GLfloat t,
+			 GLuint edst, GLuint eout, GLuint ein,
+			 GLboolean force_boundary )
+{
+   LOCALVARS
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   GLubyte *ddverts = GET_VERTEX_STORE();
+   GLuint shift = GET_VERTEX_STRIDE_SHIFT();
+   const GLfloat *dstclip = VB->ClipPtr->data[edst];
+   GLfloat w;
+   const GLfloat *s = GET_VIEWPORT_MAT();
+
+   VERTEX *dst = (VERTEX *)(ddverts + (edst << shift));
+   VERTEX *in  = (VERTEX *)(ddverts + (ein << shift));
+   VERTEX *out = (VERTEX *)(ddverts + (eout << shift));
+
+   (void)s;
+
+   if (HAVE_HW_DIVIDE && CHECK_HW_DIVIDE) {
+      VIEWPORT_X( dst->v.x, dstclip[0] );
+      VIEWPORT_Y( dst->v.y, dstclip[1] );
+      VIEWPORT_Z( dst->v.z, dstclip[2] );
+      w = dstclip[3];
+   }
+   else {
+      w = 1.0 / dstclip[3];
+      VIEWPORT_X( dst->v.x, dstclip[0] * w );
+      VIEWPORT_Y( dst->v.y, dstclip[1] * w );
+      VIEWPORT_Z( dst->v.z, dstclip[2] * w );
+   }
+
+   if ((HAVE_HW_DIVIDE && CHECK_HW_DIVIDE) || 
+       DO_FOG || DO_SPEC || DO_TEX0 || DO_TEX1 ||
+       DO_TEX2 || DO_TEX3 || !HAVE_TINY_VERTICES) {
+
+      dst->v.w = w;
+
+      INTERP_UB( t, dst->ub4[4][0], out->ub4[4][0], in->ub4[4][0] );
+      INTERP_UB( t, dst->ub4[4][1], out->ub4[4][1], in->ub4[4][1] );
+      INTERP_UB( t, dst->ub4[4][2], out->ub4[4][2], in->ub4[4][2] );
+      INTERP_UB( t, dst->ub4[4][3], out->ub4[4][3], in->ub4[4][3] );
+
+      if (DO_SPEC) {
+	 INTERP_UB( t, dst->v.specular.red,   out->v.specular.red,   in->v.specular.red );
+	 INTERP_UB( t, dst->v.specular.green, out->v.specular.green, in->v.specular.green );
+	 INTERP_UB( t, dst->v.specular.blue,  out->v.specular.blue,  in->v.specular.blue );
+      }
+      if (DO_FOG) {
+	 INTERP_UB( t, dst->v.specular.alpha, out->v.specular.alpha, in->v.specular.alpha );
+      }
+      if (DO_TEX0) {
+	 if (DO_PTEX) {
+	    if (HAVE_PTEX_VERTICES) {
+	       INTERP_F( t, dst->pv.u0, out->pv.u0, in->pv.u0 );
+	       INTERP_F( t, dst->pv.v0, out->pv.v0, in->pv.v0 );
+	       INTERP_F( t, dst->pv.q0, out->pv.q0, in->pv.q0 );
+	    } else {
+	       GLfloat wout = VB->NdcPtr->data[eout][3];
+	       GLfloat win = VB->NdcPtr->data[ein][3];
+	       GLfloat qout = out->pv.w / wout;
+	       GLfloat qin = in->pv.w / win;
+	       GLfloat qdst, rqdst;
+
+	       ASSERT( !HAVE_HW_DIVIDE );
+
+	       INTERP_F( t, dst->v.u0, out->v.u0 * qout, in->v.u0 * qin );
+	       INTERP_F( t, dst->v.v0, out->v.v0 * qout, in->v.v0 * qin );
+	       INTERP_F( t, qdst, qout, qin );
+
+	       rqdst = 1.0 / qdst;
+	       dst->v.u0 *= rqdst;
+	       dst->v.v0 *= rqdst;
+	       dst->v.w *= rqdst;
+	    }
+	 }
+	 else {
+	    INTERP_F( t, dst->v.u0, out->v.u0, in->v.u0 );
+	    INTERP_F( t, dst->v.v0, out->v.v0, in->v.v0 );
+	 }
+      }
+      if (DO_TEX1) {
+	 if (DO_PTEX) {
+	    INTERP_F( t, dst->pv.u1, out->pv.u1, in->pv.u1 );
+	    INTERP_F( t, dst->pv.v1, out->pv.v1, in->pv.v1 );
+	    INTERP_F( t, dst->pv.q1, out->pv.q1, in->pv.q1 );
+	 } else {
+	    INTERP_F( t, dst->v.u1, out->v.u1, in->v.u1 );
+	    INTERP_F( t, dst->v.v1, out->v.v1, in->v.v1 );
+	 }
+      }
+      else if (DO_PTEX) {
+	 dst->pv.q1 = 0.0;	/* must be a valid float on radeon */
+      }
+      if (DO_TEX2) {
+	 if (DO_PTEX) {
+	    INTERP_F( t, dst->pv.u2, out->pv.u2, in->pv.u2 );
+	    INTERP_F( t, dst->pv.v2, out->pv.v2, in->pv.v2 );
+	    INTERP_F( t, dst->pv.q2, out->pv.q2, in->pv.q2 );
+	 } else {
+	    INTERP_F( t, dst->v.u2, out->v.u2, in->v.u2 );
+	    INTERP_F( t, dst->v.v2, out->v.v2, in->v.v2 );
+	 }
+      }
+      if (DO_TEX3) {
+	 if (DO_PTEX) {
+	    INTERP_F( t, dst->pv.u3, out->pv.u3, in->pv.u3 );
+	    INTERP_F( t, dst->pv.v3, out->pv.v3, in->pv.v3 );
+	    INTERP_F( t, dst->pv.q3, out->pv.q3, in->pv.q3 );
+	 } else {
+	    INTERP_F( t, dst->v.u3, out->v.u3, in->v.u3 );
+	    INTERP_F( t, dst->v.v3, out->v.v3, in->v.v3 );
+	 }
+      }
+   } else {
+      /* 4-dword vertex.  Color is in v[3] and there is no oow coordinate.
+       */
+      INTERP_UB( t, dst->ub4[3][0], out->ub4[3][0], in->ub4[3][0] );
+      INTERP_UB( t, dst->ub4[3][1], out->ub4[3][1], in->ub4[3][1] );
+      INTERP_UB( t, dst->ub4[3][2], out->ub4[3][2], in->ub4[3][2] );
+      INTERP_UB( t, dst->ub4[3][3], out->ub4[3][3], in->ub4[3][3] );
+   }
+}
+
+#endif /* rgba && xyzw */
+
+
+static void TAG(init)( void )
+{
+   setup_tab[IND].emit = TAG(emit);
+
+#if (DO_XYZW && DO_RGBA)
+   setup_tab[IND].check_tex_sizes = TAG(check_tex_sizes);
+   setup_tab[IND].interp = TAG(interp);
+#endif
+
+   if (DO_SPEC)
+      setup_tab[IND].copy_pv = copy_pv_rgba4_spec5;
+   else if (HAVE_HW_DIVIDE || DO_SPEC || DO_FOG || DO_TEX0 || DO_TEX1 ||
+	    DO_TEX2 || DO_TEX3 || !HAVE_TINY_VERTICES)
+      setup_tab[IND].copy_pv = copy_pv_rgba4;
+   else
+      setup_tab[IND].copy_pv = copy_pv_rgba3;
+
+   if (DO_TEX3) {
+      if (DO_PTEX) {
+	 ASSERT(HAVE_PTEX_VERTICES);
+	 setup_tab[IND].vertex_format = PROJ_TEX3_VERTEX_FORMAT;
+	 setup_tab[IND].vertex_size = 18;
+	 setup_tab[IND].vertex_stride_shift = 7;
+      }
+      else {
+	 setup_tab[IND].vertex_format = TEX3_VERTEX_FORMAT;
+	 setup_tab[IND].vertex_size = 14;
+	 setup_tab[IND].vertex_stride_shift = 6;
+      }
+   }
+   else if (DO_TEX2) {
+      if (DO_PTEX) {
+	 ASSERT(HAVE_PTEX_VERTICES);
+	 setup_tab[IND].vertex_format = PROJ_TEX3_VERTEX_FORMAT;
+	 setup_tab[IND].vertex_size = 18;
+	 setup_tab[IND].vertex_stride_shift = 7;
+      }
+      else {
+	 setup_tab[IND].vertex_format = TEX2_VERTEX_FORMAT;
+	 setup_tab[IND].vertex_size = 12;
+	 setup_tab[IND].vertex_stride_shift = 6;
+      }
+   }
+   else if (DO_TEX1) {
+      if (DO_PTEX) {
+	 ASSERT(HAVE_PTEX_VERTICES);
+	 setup_tab[IND].vertex_format = PROJ_TEX1_VERTEX_FORMAT;
+	 setup_tab[IND].vertex_size = 12;
+	 setup_tab[IND].vertex_stride_shift = 6;
+      }
+      else {
+	 setup_tab[IND].vertex_format = TEX1_VERTEX_FORMAT;
+	 setup_tab[IND].vertex_size = 10;
+	 setup_tab[IND].vertex_stride_shift = 6;
+      }
+   }
+   else if (DO_TEX0) {
+      if (DO_PTEX && HAVE_PTEX_VERTICES) {
+	 setup_tab[IND].vertex_format = PROJ_TEX1_VERTEX_FORMAT;
+	 setup_tab[IND].vertex_size = 12;
+	 setup_tab[IND].vertex_stride_shift = 6;
+      } else {
+	 setup_tab[IND].vertex_format = TEX0_VERTEX_FORMAT;
+	 setup_tab[IND].vertex_size = 8;
+	 setup_tab[IND].vertex_stride_shift = 5;
+      }
+   }
+   else if (!HAVE_HW_DIVIDE && !DO_SPEC && !DO_FOG && HAVE_TINY_VERTICES) {
+      setup_tab[IND].vertex_format = TINY_VERTEX_FORMAT;
+      setup_tab[IND].vertex_size = 4;
+      setup_tab[IND].vertex_stride_shift = 4;
+   } else if (HAVE_NOTEX_VERTICES) {
+      setup_tab[IND].vertex_format = NOTEX_VERTEX_FORMAT;
+      setup_tab[IND].vertex_size = 6;
+      setup_tab[IND].vertex_stride_shift = 5;
+   } else {
+      setup_tab[IND].vertex_format = TEX0_VERTEX_FORMAT;
+      setup_tab[IND].vertex_size = 8;
+      setup_tab[IND].vertex_stride_shift = 5;
+   }
+
+   assert(setup_tab[IND].vertex_size * 4 <=
+          1 << setup_tab[IND].vertex_stride_shift);
+}
+
+
+#undef IND
+#undef TAG