New driver for i915 as well as older i830/i845/i865 chipsets.

1 files changed, 900 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_tris.c b/src/mesa/drivers/dri/i915/intel_tris.c
new file mode 100644
index 0000000000..07d9878808
--- /dev/null
+++ b/src/mesa/drivers/dri/i915/intel_tris.c
@@ -0,0 +1,900 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ **************************************************************************/
+
+#include "glheader.h"
+#include "context.h"
+#include "macros.h"
+#include "enums.h"
+#include "dd.h"
+
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+#include "tnl/t_vertex.h"
+
+#include "intel_screen.h"
+#include "intel_tris.h"
+#include "intel_batchbuffer.h"
+#include "intel_reg.h"
+#include "intel_span.h"
+
+static void intelRenderPrimitive( GLcontext *ctx, GLenum prim );
+static void intelRasterPrimitive( GLcontext *ctx, GLenum rprim, GLuint hwprim );
+
+/***********************************************************************
+ *                    Emit primitives as inline vertices               *
+ ***********************************************************************/
+
+#if 1
+#define COPY_DWORDS( j, vb, vertsize, v )			\
+do {								\
+   int __tmp;							\
+   __asm__ __volatile__( "rep ; movsl"				\
+			 : "=%c" (j), "=D" (vb), "=S" (__tmp)	\
+			 : "0" (vertsize),			\
+			 "D" ((long)vb),			\
+			 "S" ((long)v) );			\
+} while (0)
+#else
+#define COPY_DWORDS( j, vb, vertsize, v )	\
+do {						\
+   if (1) fprintf(stderr, "\n");	\
+   for ( j = 0 ; j < vertsize ; j++ ) {		\
+      if (1) fprintf(stderr, "   -- v(%d): %x/%f\n",j,	\
+	      ((GLuint *)v)[j],			\
+	      ((GLfloat *)v)[j]);		\
+      vb[j] = ((GLuint *)v)[j];			\
+   }						\
+   vb += vertsize;				\
+} while (0)
+#endif
+
+static void __inline__ intel_draw_quad( intelContextPtr intel,
+					intelVertexPtr v0,
+					intelVertexPtr v1,
+					intelVertexPtr v2,
+					intelVertexPtr v3 )
+{
+   GLuint vertsize = intel->vertex_size;
+   GLuint *vb = intelExtendInlinePrimitive( intel, 6 * vertsize );
+   int j;
+
+   COPY_DWORDS( j, vb, vertsize, v0 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+   COPY_DWORDS( j, vb, vertsize, v3 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+   COPY_DWORDS( j, vb, vertsize, v2 );
+   COPY_DWORDS( j, vb, vertsize, v3 );
+}
+
+static void __inline__ intel_draw_triangle( intelContextPtr intel,
+					    intelVertexPtr v0,
+					    intelVertexPtr v1,
+					    intelVertexPtr v2 )
+{
+   GLuint vertsize = intel->vertex_size;
+   GLuint *vb = intelExtendInlinePrimitive( intel, 3 * vertsize );
+   int j;
+   
+   COPY_DWORDS( j, vb, vertsize, v0 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+   COPY_DWORDS( j, vb, vertsize, v2 );
+}
+
+
+static __inline__ void intel_draw_line( intelContextPtr intel,
+					intelVertexPtr v0,
+					intelVertexPtr v1 )
+{
+   GLuint vertsize = intel->vertex_size;
+   GLuint *vb = intelExtendInlinePrimitive( intel, 2 * vertsize );
+   int j;
+
+   COPY_DWORDS( j, vb, vertsize, v0 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+}
+
+
+static __inline__ void intel_draw_point( intelContextPtr intel,
+					 intelVertexPtr v0 )
+{
+   GLuint vertsize = intel->vertex_size;
+   GLuint *vb = intelExtendInlinePrimitive( intel, vertsize );
+   int j;
+
+   /* Adjust for sub pixel position -- still required for conform. */
+   *(float *)&vb[0] = v0->v.x - 0.125;
+   *(float *)&vb[1] = v0->v.y - 0.125;
+   for (j = 2 ; j < vertsize ; j++)
+     vb[j] = v0->ui[j];
+}
+
+
+
+/***********************************************************************
+ *                Fixup for ARB_point_parameters                       *
+ ***********************************************************************/
+
+static void intel_atten_point( intelContextPtr intel, intelVertexPtr v0 )
+{
+   GLcontext *ctx = &intel->ctx;
+   GLfloat psz[4], col[4], restore_psz, restore_alpha;
+
+   _tnl_get_attr( ctx, v0, _TNL_ATTRIB_POINTSIZE, psz );
+   _tnl_get_attr( ctx, v0, _TNL_ATTRIB_COLOR0, col );
+
+   restore_psz = psz[0];
+   restore_alpha = col[3];
+
+   if (psz[0] >= ctx->Point.Threshold) {
+      psz[0] = MIN2(psz[0], ctx->Point.MaxSize);
+   }
+   else {
+      GLfloat dsize = psz[0] / ctx->Point.Threshold;
+      psz[0] = MAX2(ctx->Point.Threshold, ctx->Point.MinSize);
+      col[3] *= dsize * dsize;
+   }
+
+   if (psz[0] < 1.0)
+      psz[0] = 1.0;
+
+   if (restore_psz != psz[0] || restore_alpha != col[3]) {
+      _tnl_set_attr( ctx, v0, _TNL_ATTRIB_POINTSIZE, psz);
+      _tnl_set_attr( ctx, v0, _TNL_ATTRIB_COLOR0, col);
+   
+      intel_draw_point( intel, v0 );
+
+      psz[0] = restore_psz;
+      col[3] = restore_alpha;
+
+      _tnl_set_attr( ctx, v0, _TNL_ATTRIB_POINTSIZE, psz);
+      _tnl_set_attr( ctx, v0, _TNL_ATTRIB_COLOR0, col);
+   }
+   else
+      intel_draw_point( intel, v0 );
+}
+
+
+
+
+
+/***********************************************************************
+ *                Fixup for I915 WPOS texture coordinate                *
+ ***********************************************************************/
+
+
+
+static void intel_wpos_triangle( intelContextPtr intel,
+				 intelVertexPtr v0,
+				 intelVertexPtr v1,
+				 intelVertexPtr v2 )
+{
+   GLuint offset = intel->wpos_offset;
+   GLuint size = intel->wpos_size;
+   
+   __memcpy( ((char *)v0) + offset, v0, size );
+   __memcpy( ((char *)v1) + offset, v1, size );
+   __memcpy( ((char *)v2) + offset, v2, size );
+
+   intel_draw_triangle( intel, v0, v1, v2 );
+}
+
+
+static void intel_wpos_line( intelContextPtr intel,
+			     intelVertexPtr v0,
+			     intelVertexPtr v1 )
+{
+   GLuint offset = intel->wpos_offset;
+   GLuint size = intel->wpos_size;
+
+   __memcpy( ((char *)v0) + offset, v0, size );
+   __memcpy( ((char *)v1) + offset, v1, size );
+
+   intel_draw_line( intel, v0, v1 );
+}
+
+
+static void intel_wpos_point( intelContextPtr intel,
+			      intelVertexPtr v0 )
+{
+   GLuint offset = intel->wpos_offset;
+   GLuint size = intel->wpos_size;
+
+   __memcpy( ((char *)v0) + offset, v0, size );
+
+   intel_draw_point( intel, v0 );
+}
+
+
+
+
+
+
+/***********************************************************************
+ *          Macros for t_dd_tritmp.h to draw basic primitives          *
+ ***********************************************************************/
+
+#define TRI( a, b, c )				\
+do { 						\
+   if (DO_FALLBACK)				\
+      intel->draw_tri( intel, a, b, c );	\
+   else						\
+      intel_draw_triangle( intel, a, b, c );	\
+} while (0)
+
+#define QUAD( a, b, c, d )			\
+do { 						\
+   if (DO_FALLBACK) {				\
+      intel->draw_tri( intel, a, b, d );	\
+      intel->draw_tri( intel, b, c, d );	\
+   } else					\
+      intel_draw_quad( intel, a, b, c, d );	\
+} while (0)
+
+#define LINE( v0, v1 )				\
+do { 						\
+   if (DO_FALLBACK)				\
+      intel->draw_line( intel, v0, v1 );	\
+   else						\
+      intel_draw_line( intel, v0, v1 );		\
+} while (0)
+
+#define POINT( v0 )				\
+do { 						\
+   if (DO_FALLBACK)				\
+      intel->draw_point( intel, v0 );		\
+   else						\
+      intel_draw_point( intel, v0 );		\
+} while (0)
+
+
+/***********************************************************************
+ *              Build render functions from dd templates               *
+ ***********************************************************************/
+
+#define INTEL_OFFSET_BIT 	0x01
+#define INTEL_TWOSIDE_BIT	0x02
+#define INTEL_UNFILLED_BIT	0x04
+#define INTEL_FALLBACK_BIT	0x08
+#define INTEL_MAX_TRIFUNC	0x10
+
+
+static struct {
+   points_func	        points;
+   line_func		line;
+   triangle_func	triangle;
+   quad_func		quad;
+} rast_tab[INTEL_MAX_TRIFUNC];
+
+
+#define DO_FALLBACK (IND & INTEL_FALLBACK_BIT)
+#define DO_OFFSET   (IND & INTEL_OFFSET_BIT)
+#define DO_UNFILLED (IND & INTEL_UNFILLED_BIT)
+#define DO_TWOSIDE  (IND & INTEL_TWOSIDE_BIT)
+#define DO_FLAT      0
+#define DO_TRI       1
+#define DO_QUAD      1
+#define DO_LINE      1
+#define DO_POINTS    1
+#define DO_FULL_QUAD 1
+
+#define HAVE_RGBA         1
+#define HAVE_SPEC         1
+#define HAVE_BACK_COLORS  0
+#define HAVE_HW_FLATSHADE 1
+#define VERTEX            intelVertex
+#define TAB               rast_tab
+
+/* Only used to pull back colors into vertices (ie, we know color is
+ * floating point).
+ */
+#define INTEL_COLOR( dst, src )				\
+do {							\
+   UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]);	\
+   UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]);	\
+   UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]);	\
+   UNCLAMPED_FLOAT_TO_UBYTE((dst)[3], (src)[3]);	\
+} while (0)
+
+#define INTEL_SPEC( dst, src )				\
+do {							\
+   UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]);	\
+   UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]);	\
+   UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]);	\
+} while (0)
+
+
+#define DEPTH_SCALE intel->polygon_offset_scale
+#define UNFILLED_TRI unfilled_tri
+#define UNFILLED_QUAD unfilled_quad
+#define VERT_X(_v) _v->v.x
+#define VERT_Y(_v) _v->v.y
+#define VERT_Z(_v) _v->v.z
+#define AREA_IS_CCW( a ) (a > 0)
+#define GET_VERTEX(e) (intel->verts + (e * intel->vertex_size * sizeof(GLuint)))
+
+#define VERT_SET_RGBA( v, c )    if (coloroffset) INTEL_COLOR( v->ub4[coloroffset], c )
+#define VERT_COPY_RGBA( v0, v1 ) if (coloroffset) v0->ui[coloroffset] = v1->ui[coloroffset]
+#define VERT_SAVE_RGBA( idx )    if (coloroffset) color[idx] = v[idx]->ui[coloroffset]
+#define VERT_RESTORE_RGBA( idx ) if (coloroffset) v[idx]->ui[coloroffset] = color[idx]
+
+#define VERT_SET_SPEC( v, c )    if (specoffset) INTEL_SPEC( v->ub4[specoffset], c )
+#define VERT_COPY_SPEC( v0, v1 ) if (specoffset) COPY_3V(v0->ub4[specoffset], v1->ub4[specoffset])
+#define VERT_SAVE_SPEC( idx )    if (specoffset) spec[idx] = v[idx]->ui[specoffset]
+#define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx]
+
+#define LOCAL_VARS(n)							\
+   intelContextPtr intel = INTEL_CONTEXT(ctx);				\
+   GLuint color[n], spec[n];						\
+   GLuint coloroffset = intel->coloroffset;		\
+   GLboolean specoffset = intel->specoffset;			\
+   (void) color; (void) spec; (void) coloroffset; (void) specoffset;
+
+
+/***********************************************************************
+ *                Helpers for rendering unfilled primitives            *
+ ***********************************************************************/
+
+static const GLuint hw_prim[GL_POLYGON+1] = {
+   PRIM3D_POINTLIST,
+   PRIM3D_LINELIST,
+   PRIM3D_LINELIST,
+   PRIM3D_LINELIST,
+   PRIM3D_TRILIST,
+   PRIM3D_TRILIST,
+   PRIM3D_TRILIST,
+   PRIM3D_TRILIST,
+   PRIM3D_TRILIST,
+   PRIM3D_TRILIST
+};
+
+#define RASTERIZE(x) intelRasterPrimitive( ctx, x, hw_prim[x] )
+#define RENDER_PRIMITIVE intel->render_primitive
+#define TAG(x) x
+#define IND INTEL_FALLBACK_BIT
+#include "tnl_dd/t_dd_unfilled.h"
+#undef IND
+
+/***********************************************************************
+ *                      Generate GL render functions                   *
+ ***********************************************************************/
+
+#define IND (0)
+#define TAG(x) x
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_OFFSET_BIT)
+#define TAG(x) x##_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_TWOSIDE_BIT)
+#define TAG(x) x##_twoside
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT)
+#define TAG(x) x##_twoside_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_UNFILLED_BIT)
+#define TAG(x) x##_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT)
+#define TAG(x) x##_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT)
+#define TAG(x) x##_twoside_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_FALLBACK_BIT)
+#define TAG(x) x##_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT)
+#define TAG(x) x##_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_TWOSIDE_BIT|INTEL_FALLBACK_BIT)
+#define TAG(x) x##_twoside_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
+#define TAG(x) x##_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
+#define TAG(x) x##_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
+#define TAG(x) x##_twoside_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT| \
+	     INTEL_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+
+static void init_rast_tab( void )
+{
+   init();
+   init_offset();
+   init_twoside();
+   init_twoside_offset();
+   init_unfilled();
+   init_offset_unfilled();
+   init_twoside_unfilled();
+   init_twoside_offset_unfilled();
+   init_fallback();
+   init_offset_fallback();
+   init_twoside_fallback();
+   init_twoside_offset_fallback();
+   init_unfilled_fallback();
+   init_offset_unfilled_fallback();
+   init_twoside_unfilled_fallback();
+   init_twoside_offset_unfilled_fallback();
+}
+
+
+/***********************************************************************
+ *                    Rasterization fallback helpers                   *
+ ***********************************************************************/
+
+
+/* This code is hit only when a mix of accelerated and unaccelerated
+ * primitives are being drawn, and only for the unaccelerated
+ * primitives.
+ */
+static void
+intel_fallback_tri( intelContextPtr intel,
+		   intelVertex *v0,
+		   intelVertex *v1,
+		   intelVertex *v2 )
+{
+   GLcontext *ctx = &intel->ctx;
+   SWvertex v[3];
+
+   if (0)
+      fprintf(stderr, "\n%s\n", __FUNCTION__);
+
+   _swsetup_Translate( ctx, v0, &v[0] );
+   _swsetup_Translate( ctx, v1, &v[1] );
+   _swsetup_Translate( ctx, v2, &v[2] );
+   intelSpanRenderStart( ctx );
+   _swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
+   intelSpanRenderFinish( ctx );
+}
+
+
+static void
+intel_fallback_line( intelContextPtr intel,
+		    intelVertex *v0,
+		    intelVertex *v1 )
+{
+   GLcontext *ctx = &intel->ctx;
+   SWvertex v[2];
+
+   if (0)
+      fprintf(stderr, "\n%s\n", __FUNCTION__);
+
+   _swsetup_Translate( ctx, v0, &v[0] );
+   _swsetup_Translate( ctx, v1, &v[1] );
+   intelSpanRenderStart( ctx );
+   _swrast_Line( ctx, &v[0], &v[1] );
+   intelSpanRenderFinish( ctx );
+}
+
+
+static void
+intel_fallback_point( intelContextPtr intel,
+		     intelVertex *v0 )
+{
+   GLcontext *ctx = &intel->ctx;
+   SWvertex v[1];
+
+   if (0)
+      fprintf(stderr, "\n%s\n", __FUNCTION__);
+
+   _swsetup_Translate( ctx, v0, &v[0] );
+   intelSpanRenderStart( ctx );
+   _swrast_Point( ctx, &v[0] );
+   intelSpanRenderFinish( ctx );
+}
+
+
+
+/**********************************************************************/
+/*               Render unclipped begin/end objects                   */
+/**********************************************************************/
+
+#define IND 0
+#define V(x) (intelVertex *)(vertptr + ((x)*vertsize*sizeof(GLuint)))
+#define RENDER_POINTS( start, count )	\
+   for ( ; start < count ; start++) POINT( V(ELT(start)) );
+#define RENDER_LINE( v0, v1 )         LINE( V(v0), V(v1) )
+#define RENDER_TRI(  v0, v1, v2 )     TRI(  V(v0), V(v1), V(v2) )
+#define RENDER_QUAD( v0, v1, v2, v3 ) QUAD( V(v0), V(v1), V(v2), V(v3) )
+#define INIT(x) intelRenderPrimitive( ctx, x )
+#undef LOCAL_VARS
+#define LOCAL_VARS						\
+    intelContextPtr intel = INTEL_CONTEXT(ctx);			\
+    GLubyte *vertptr = (GLubyte *)intel->verts;			\
+    const GLuint vertsize = intel->vertex_size;       	\
+    const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts;	\
+    (void) elt;
+#define RESET_STIPPLE
+#define RESET_OCCLUSION
+#define PRESERVE_VB_DEFS
+#define ELT(x) x
+#define TAG(x) intel_##x##_verts
+#include "tnl/t_vb_rendertmp.h"
+#undef ELT
+#undef TAG
+#define TAG(x) intel_##x##_elts
+#define ELT(x) elt[x]
+#include "tnl/t_vb_rendertmp.h"
+
+/**********************************************************************/
+/*                   Render clipped primitives                        */
+/**********************************************************************/
+
+
+
+static void intelRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
+				   GLuint n )
+{
+   intelContextPtr intel = INTEL_CONTEXT(ctx);
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   GLuint prim = intel->render_primitive;
+
+   /* Render the new vertices as an unclipped polygon.
+    */
+   {
+      GLuint *tmp = VB->Elts;
+      VB->Elts = (GLuint *)elts;
+      tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, 
+						  PRIM_BEGIN|PRIM_END );
+      VB->Elts = tmp;
+   }
+
+   /* Restore the render primitive
+    */
+   if (prim != GL_POLYGON)
+      tnl->Driver.Render.PrimitiveNotify( ctx, prim );
+}
+
+static void intelRenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+
+   tnl->Driver.Render.Line( ctx, ii, jj );
+}
+
+static void intelFastRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
+				       GLuint n )
+{
+   intelContextPtr intel = INTEL_CONTEXT( ctx );
+   const GLuint vertsize = intel->vertex_size;
+   GLuint *vb = intelExtendInlinePrimitive( intel, (n-2) * 3 * vertsize );
+   GLubyte *vertptr = (GLubyte *)intel->verts;
+   const GLuint *start = (const GLuint *)V(elts[0]);
+   int i,j;
+
+   for (i = 2 ; i < n ; i++) {
+      COPY_DWORDS( j, vb, vertsize, V(elts[i-1]) );
+      COPY_DWORDS( j, vb, vertsize, V(elts[i]) );
+      COPY_DWORDS( j, vb, vertsize, start );
+   }
+}
+
+/**********************************************************************/
+/*                    Choose render functions                         */
+/**********************************************************************/
+
+
+
+
+#define POINT_FALLBACK (0)
+#define LINE_FALLBACK (DD_LINE_STIPPLE)
+#define TRI_FALLBACK (0)
+#define ANY_FALLBACK_FLAGS (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK|\
+                            DD_TRI_STIPPLE|DD_POINT_ATTEN)
+#define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE|DD_TRI_OFFSET|DD_TRI_UNFILLED)
+
+void intelChooseRenderState(GLcontext *ctx)
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   intelContextPtr intel = INTEL_CONTEXT(ctx);
+   GLuint flags = ctx->_TriangleCaps;
+   struct fragment_program *program = ctx->FragmentProgram.Current;
+   GLboolean have_wpos = (program && (program->InputsRead & FRAG_BIT_WPOS));
+   GLuint index = 0;
+
+   if (INTEL_DEBUG & DEBUG_STATE)
+     fprintf(stderr,"\n%s\n",__FUNCTION__);
+
+   if ((flags & (ANY_FALLBACK_FLAGS|ANY_RASTER_FLAGS)) || have_wpos) {
+
+      if (flags & ANY_RASTER_FLAGS) {
+	 if (flags & DD_TRI_LIGHT_TWOSIDE)    index |= INTEL_TWOSIDE_BIT;
+	 if (flags & DD_TRI_OFFSET)	      index |= INTEL_OFFSET_BIT;
+	 if (flags & DD_TRI_UNFILLED)	      index |= INTEL_UNFILLED_BIT;
+      }
+
+      if (have_wpos) {
+	 intel->draw_point = intel_wpos_point;
+	 intel->draw_line = intel_wpos_line;
+	 intel->draw_tri = intel_wpos_triangle;
+
+	 /* Make sure these get called:
+	  */
+	 index |= INTEL_FALLBACK_BIT;
+      }
+      else {
+	 intel->draw_point = intel_draw_point;
+	 intel->draw_line = intel_draw_line;
+	 intel->draw_tri = intel_draw_triangle;
+      }
+
+      /* Hook in fallbacks for specific primitives.
+       */
+      if (flags & ANY_FALLBACK_FLAGS)
+      {
+	 if (flags & POINT_FALLBACK)
+	    intel->draw_point = intel_fallback_point;
+
+	 if (flags & LINE_FALLBACK)
+	    intel->draw_line = intel_fallback_line;
+
+	 if (flags & TRI_FALLBACK)
+	    intel->draw_tri = intel_fallback_tri;
+
+	 if ((flags & DD_TRI_STIPPLE) && !intel->hw_stipple) 
+	    intel->draw_tri = intel_fallback_tri;
+
+	 if (flags & DD_POINT_ATTEN)
+	    intel->draw_point = intel_atten_point;
+
+	 index |= INTEL_FALLBACK_BIT;
+      }
+   }
+
+   if (intel->RenderIndex != index) {
+      intel->RenderIndex = index;
+
+      tnl->Driver.Render.Points = rast_tab[index].points;
+      tnl->Driver.Render.Line = rast_tab[index].line;
+      tnl->Driver.Render.Triangle = rast_tab[index].triangle;
+      tnl->Driver.Render.Quad = rast_tab[index].quad;
+
+      if (index == 0) {
+	 tnl->Driver.Render.PrimTabVerts = intel_render_tab_verts;
+	 tnl->Driver.Render.PrimTabElts = intel_render_tab_elts;
+	 tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */
+	 tnl->Driver.Render.ClippedPolygon = intelFastRenderClippedPoly;
+      } else {
+	 tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+	 tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+	 tnl->Driver.Render.ClippedLine = intelRenderClippedLine;
+	 tnl->Driver.Render.ClippedPolygon = intelRenderClippedPoly;
+      }
+   }
+}
+
+static const GLenum reduced_prim[GL_POLYGON+1] = {
+   GL_POINTS,
+   GL_LINES,
+   GL_LINES,
+   GL_LINES,
+   GL_TRIANGLES,
+   GL_TRIANGLES,
+   GL_TRIANGLES,
+   GL_TRIANGLES,
+   GL_TRIANGLES,
+   GL_TRIANGLES
+};
+
+
+/**********************************************************************/
+/*                 High level hooks for t_vb_render.c                 */
+/**********************************************************************/
+
+
+
+
+static void intelRunPipeline( GLcontext *ctx )
+{
+   intelContextPtr intel = INTEL_CONTEXT(ctx);
+
+   if (intel->NewGLState) {
+      if (intel->NewGLState & _NEW_TEXTURE) {
+	 intel->vtbl.update_texture_state( intel ); 
+      }
+
+      if (!intel->Fallback) {
+	 if (intel->NewGLState & _INTEL_NEW_RENDERSTATE)
+	    intelChooseRenderState( ctx );
+      }
+
+      intel->NewGLState = 0;
+   }
+
+   _tnl_run_pipeline( ctx );
+}
+
+static void intelRenderStart( GLcontext *ctx )
+{
+   INTEL_CONTEXT(ctx)->vtbl.render_start( INTEL_CONTEXT(ctx) );
+}
+
+static void intelRenderFinish( GLcontext *ctx )
+{
+   if (INTEL_CONTEXT(ctx)->RenderIndex & INTEL_FALLBACK_BIT)
+      _swrast_flush( ctx );
+}
+
+
+
+
+ /* System to flush dma and emit state changes based on the rasterized
+  * primitive.
+  */
+static void intelRasterPrimitive( GLcontext *ctx, GLenum rprim, GLuint hwprim )
+{
+   intelContextPtr intel = INTEL_CONTEXT(ctx);
+
+   if (0)
+      fprintf(stderr, "%s %s %x\n", __FUNCTION__, 
+	      _mesa_lookup_enum_by_nr(rprim), hwprim);
+
+   intel->vtbl.reduced_primitive_state( intel, rprim );
+    
+   /* Start a new primitive.  Arrange to have it flushed later on.
+    */
+   if (hwprim != intel->prim.primitive) 
+      intelStartInlinePrimitive( intel, hwprim );
+}
+
+
+ /* 
+  */
+ static void intelRenderPrimitive( GLcontext *ctx, GLenum prim )
+ {
+    intelContextPtr intel = INTEL_CONTEXT(ctx);
+
+    if (0)
+       fprintf(stderr, "%s %s\n", __FUNCTION__, _mesa_lookup_enum_by_nr(prim));
+
+    /* Let some clipping routines know which primitive they're dealing
+     * with.
+     */
+    intel->render_primitive = prim;
+
+    /* Shortcircuit this when called from t_dd_rendertmp.h for unfilled
+     * triangles.  The rasterized primitive will always be reset by
+     * lower level functions in that case, potentially pingponging the
+     * state:
+     */
+    if (reduced_prim[prim] == GL_TRIANGLES && 
+	(ctx->_TriangleCaps & DD_TRI_UNFILLED))
+       return;
+
+    /* Set some primitive-dependent state and Start? a new primitive.
+     */
+    intelRasterPrimitive( ctx, reduced_prim[prim], hw_prim[prim] );
+ }
+
+
+ /**********************************************************************/
+ /*           Transition to/from hardware rasterization.               */
+ /**********************************************************************/
+
+ static char *fallbackStrings[] = {
+    "Texture",
+    "Draw buffer",
+    "Read buffer",
+    "Color mask",
+    "Render mode",
+    "Stencil",
+    "Stipple",
+    "User disable"
+ };
+
+
+ static char *getFallbackString(GLuint bit)
+ {
+    int i = 0;
+    while (bit > 1) {
+       i++;
+       bit >>= 1;
+    }
+    return fallbackStrings[i];
+ }
+
+
+
+ void intelFallback( intelContextPtr intel, GLuint bit, GLboolean mode )
+ {
+    GLcontext *ctx = &intel->ctx;
+    TNLcontext *tnl = TNL_CONTEXT(ctx);
+    GLuint oldfallback = intel->Fallback;
+
+    if (mode) {
+       intel->Fallback |= bit;
+       if (oldfallback == 0) {
+	  intelFlush(ctx);
+	  if (INTEL_DEBUG & DEBUG_FALLBACKS) 
+	     fprintf(stderr, "ENTER FALLBACK %x: %s\n",
+		     bit, getFallbackString( bit ));
+	  _swsetup_Wakeup( ctx );
+	  intel->RenderIndex = ~0;
+       }
+    }
+    else {
+       intel->Fallback &= ~bit;
+       if (oldfallback == bit) {
+	  _swrast_flush( ctx );
+	  if (INTEL_DEBUG & DEBUG_FALLBACKS) 
+	     fprintf(stderr, "LEAVE FALLBACK %s\n", getFallbackString( bit ));
+	  tnl->Driver.Render.Start = intelRenderStart;
+	  tnl->Driver.Render.PrimitiveNotify = intelRenderPrimitive;
+	  tnl->Driver.Render.Finish = intelRenderFinish;
+	  tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
+	  tnl->Driver.Render.CopyPV = _tnl_copy_pv;
+	  tnl->Driver.Render.Interp = _tnl_interp;
+
+	  _tnl_invalidate_vertex_state( ctx, ~0 );
+	  _tnl_invalidate_vertices( ctx, ~0 );
+	  _tnl_install_attrs( ctx, 
+			      intel->vertex_attrs, 
+			      intel->vertex_attr_count,
+			      intel->ViewportMatrix.m, 0 ); 
+
+	  intel->NewGLState |= _INTEL_NEW_RENDERSTATE;
+       }
+    }
+ }
+
+
+
+
+/**********************************************************************/
+/*                            Initialization.                         */
+/**********************************************************************/
+
+
+void intelInitTriFuncs( GLcontext *ctx )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   static int firsttime = 1;
+
+   if (firsttime) {
+      init_rast_tab();
+      firsttime = 0;
+   }
+
+   tnl->Driver.RunPipeline = intelRunPipeline;
+   tnl->Driver.Render.Start = intelRenderStart;
+   tnl->Driver.Render.Finish = intelRenderFinish;
+   tnl->Driver.Render.PrimitiveNotify = intelRenderPrimitive;
+   tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple;
+   tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
+   tnl->Driver.Render.CopyPV = _tnl_copy_pv;
+   tnl->Driver.Render.Interp = _tnl_interp;
+}