xserver and mesa git update 28-12-2010

1 files changed, 564 insertions, 564 deletions

diff --git a/mesalib/src/mesa/tnl/t_vertex.c b/mesalib/src/mesa/tnl/t_vertex.c
index c1b157023..0ca324402 100644
--- a/mesalib/src/mesa/tnl/t_vertex.c
+++ b/mesalib/src/mesa/tnl/t_vertex.c
@@ -1,564 +1,564 @@
-/*
- * Copyright 2003 Tungsten Graphics, inc.
- * 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
- * on the rights to use, copy, modify, merge, publish, distribute, sub
- * license, 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 (including the next
- * paragraph) 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 NON-INFRINGEMENT.  IN NO EVENT SHALL
- * TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS 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 <keithw@tungstengraphics.com>
- */
-
-#include "main/glheader.h"
-#include "main/context.h"
-#include "main/colormac.h"
-
-#include "t_context.h"
-#include "t_vertex.h"
-
-#define DBG 0
-
-/* Build and manage clipspace/ndc/window vertices.
- */
-
-static GLboolean match_fastpath( struct tnl_clipspace *vtx,
-				 const struct tnl_clipspace_fastpath *fp)
-{
-   GLuint j;
-
-   if (vtx->attr_count != fp->attr_count) 
-      return GL_FALSE;
-
-   for (j = 0; j < vtx->attr_count; j++) 
-      if (vtx->attr[j].format != fp->attr[j].format ||
-	  vtx->attr[j].inputsize != fp->attr[j].size ||
-	  vtx->attr[j].vertoffset != fp->attr[j].offset) 
-	 return GL_FALSE;
-      
-   if (fp->match_strides) {
-      if (vtx->vertex_size != fp->vertex_size)
-	 return GL_FALSE;
-
-      for (j = 0; j < vtx->attr_count; j++) 
-	 if (vtx->attr[j].inputstride != fp->attr[j].stride) 
-	    return GL_FALSE;
-   }
-   
-   return GL_TRUE;
-}
-
-static GLboolean search_fastpath_emit( struct tnl_clipspace *vtx )
-{
-   struct tnl_clipspace_fastpath *fp = vtx->fastpath;
-
-   for ( ; fp ; fp = fp->next) {
-      if (match_fastpath(vtx, fp)) {
-         vtx->emit = fp->func;
-	 return GL_TRUE;
-      }
-   }
-
-   return GL_FALSE;
-}
-
-void _tnl_register_fastpath( struct tnl_clipspace *vtx,
-			     GLboolean match_strides )
-{
-   struct tnl_clipspace_fastpath *fastpath = CALLOC_STRUCT(tnl_clipspace_fastpath);
-   GLuint i;
-
-   fastpath->vertex_size = vtx->vertex_size;
-   fastpath->attr_count = vtx->attr_count;
-   fastpath->match_strides = match_strides;
-   fastpath->func = vtx->emit;
-   fastpath->attr = (struct tnl_attr_type *)
-      malloc(vtx->attr_count * sizeof(fastpath->attr[0]));
-
-   for (i = 0; i < vtx->attr_count; i++) {
-      fastpath->attr[i].format = vtx->attr[i].format;
-      fastpath->attr[i].stride = vtx->attr[i].inputstride;
-      fastpath->attr[i].size = vtx->attr[i].inputsize;
-      fastpath->attr[i].offset = vtx->attr[i].vertoffset;
-   }
-
-   fastpath->next = vtx->fastpath;
-   vtx->fastpath = fastpath;
-}
-
-
-
-/***********************************************************************
- * Build codegen functions or return generic ones:
- */
-static void choose_emit_func( GLcontext *ctx, GLuint count, GLubyte *dest)
-{
-   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   struct tnl_clipspace_attr *a = vtx->attr;
-   const GLuint attr_count = vtx->attr_count;
-   GLuint j;
-
-   for (j = 0; j < attr_count; j++) {
-      GLvector4f *vptr = VB->AttribPtr[a[j].attrib];
-      a[j].inputstride = vptr->stride;
-      a[j].inputsize = vptr->size;
-      a[j].emit = a[j].insert[vptr->size - 1]; /* not always used */
-   }
-
-   vtx->emit = NULL;
-   
-   /* Does this match an existing (hardwired, codegen or known-bad)
-    * fastpath?
-    */
-   if (search_fastpath_emit(vtx)) {
-      /* Use this result.  If it is null, then it is already known
-       * that the current state will fail for codegen and there is no
-       * point trying again.
-       */
-   }
-   else if (vtx->codegen_emit) {
-      vtx->codegen_emit(ctx);
-   }
-
-   if (!vtx->emit) {
-      _tnl_generate_hardwired_emit(ctx);
-   }
-
-   /* Otherwise use the generic version:
-    */
-   if (!vtx->emit)
-      vtx->emit = _tnl_generic_emit;
-
-   vtx->emit( ctx, count, dest );
-}
-
-
-
-static void choose_interp_func( GLcontext *ctx,
-				GLfloat t,
-				GLuint edst, GLuint eout, GLuint ein,
-				GLboolean force_boundary )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
-   if (vtx->need_extras && 
-       (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
-      vtx->interp = _tnl_generic_interp_extras;
-   } else {
-      vtx->interp = _tnl_generic_interp;
-   }
-
-   vtx->interp( ctx, t, edst, eout, ein, force_boundary );
-}
-
-
-static void choose_copy_pv_func(  GLcontext *ctx, GLuint edst, GLuint esrc )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
-   if (vtx->need_extras && 
-       (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
-      vtx->copy_pv = _tnl_generic_copy_pv_extras;
-   } else {
-      vtx->copy_pv = _tnl_generic_copy_pv;
-   }
-
-   vtx->copy_pv( ctx, edst, esrc );
-}
-
-
-/***********************************************************************
- * Public entrypoints, mostly dispatch to the above:
- */
-
-
-/* Interpolate between two vertices to produce a third:
- */
-void _tnl_interp( GLcontext *ctx,
-		  GLfloat t,
-		  GLuint edst, GLuint eout, GLuint ein,
-		  GLboolean force_boundary )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   vtx->interp( ctx, t, edst, eout, ein, force_boundary );
-}
-
-/* Copy colors from one vertex to another:
- */
-void _tnl_copy_pv(  GLcontext *ctx, GLuint edst, GLuint esrc )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   vtx->copy_pv( ctx, edst, esrc );
-}
-
-
-/* Extract a named attribute from a hardware vertex.  Will have to
- * reverse any viewport transformation, swizzling or other conversions
- * which may have been applied:
- */
-void _tnl_get_attr( GLcontext *ctx, const void *vin,
-			      GLenum attr, GLfloat *dest )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   const struct tnl_clipspace_attr *a = vtx->attr;
-   const GLuint attr_count = vtx->attr_count;
-   GLuint j;
-
-   for (j = 0; j < attr_count; j++) {
-      if (a[j].attrib == attr) {
-	 a[j].extract( &a[j], dest, (GLubyte *)vin + a[j].vertoffset );
-	 return;
-      }
-   }
-
-   /* Else return the value from ctx->Current.
-    */
-   if (attr == _TNL_ATTRIB_POINTSIZE) {
-      /* If the hardware vertex doesn't have point size then use size from
-       * GLcontext.  XXX this will be wrong if drawing attenuated points!
-       */
-      dest[0] = ctx->Point.Size;
-   }
-   else {
-      memcpy( dest, ctx->Current.Attrib[attr], 4*sizeof(GLfloat));
-   }
-}
-
-
-/* Complementary operation to the above.
- */
-void _tnl_set_attr( GLcontext *ctx, void *vout,
-		    GLenum attr, const GLfloat *src )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   const struct tnl_clipspace_attr *a = vtx->attr;
-   const GLuint attr_count = vtx->attr_count;
-   GLuint j;
-
-   for (j = 0; j < attr_count; j++) {
-      if (a[j].attrib == attr) {
-	 a[j].insert[4-1]( &a[j], (GLubyte *)vout + a[j].vertoffset, src );
-	 return;
-      }
-   }
-}
-
-
-void *_tnl_get_vertex( GLcontext *ctx, GLuint nr )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
-   return vtx->vertex_buf + nr * vtx->vertex_size;
-}
-
-void _tnl_invalidate_vertex_state( GLcontext *ctx, GLuint new_state )
-{
-   if (new_state & (_DD_NEW_TRI_LIGHT_TWOSIDE|_DD_NEW_TRI_UNFILLED) ) {
-      struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-      vtx->new_inputs = ~0;
-      vtx->interp = choose_interp_func;
-      vtx->copy_pv = choose_copy_pv_func;
-   }
-}
-
-static void invalidate_funcs( struct tnl_clipspace *vtx )
-{
-   vtx->emit = choose_emit_func;
-   vtx->interp = choose_interp_func;
-   vtx->copy_pv = choose_copy_pv_func;
-   vtx->new_inputs = ~0;
-}
-
-GLuint _tnl_install_attrs( GLcontext *ctx, const struct tnl_attr_map *map,
-			   GLuint nr, const GLfloat *vp, 
-			   GLuint unpacked_size )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   GLuint offset = 0;
-   GLuint i, j;
-
-   assert(nr < _TNL_ATTRIB_MAX);
-   assert(nr == 0 || map[0].attrib == VERT_ATTRIB_POS);
-
-   vtx->new_inputs = ~0;
-   vtx->need_viewport = GL_FALSE;
-
-   if (vp) {
-      vtx->need_viewport = GL_TRUE;
-   }
-
-   for (j = 0, i = 0; i < nr; i++) {
-      const GLuint format = map[i].format;
-      if (format == EMIT_PAD) {
-	 if (DBG)
-	    printf("%d: pad %d, offset %d\n", i,  
-		   map[i].offset, offset);  
-
-	 offset += map[i].offset;
-
-      }
-      else {
-	 GLuint tmpoffset;
-
-	 if (unpacked_size) 
-	    tmpoffset = map[i].offset;
-	 else
-	    tmpoffset = offset;
-
-	 if (vtx->attr_count != j ||
-	     vtx->attr[j].attrib != map[i].attrib ||
-	     vtx->attr[j].format != format ||
-	     vtx->attr[j].vertoffset != tmpoffset) {
-	    invalidate_funcs(vtx);
-
-	    vtx->attr[j].attrib = map[i].attrib;
-	    vtx->attr[j].format = format;
-	    vtx->attr[j].vp = vp;
-	    vtx->attr[j].insert = _tnl_format_info[format].insert;
-	    vtx->attr[j].extract = _tnl_format_info[format].extract;
-	    vtx->attr[j].vertattrsize = _tnl_format_info[format].attrsize;
-	    vtx->attr[j].vertoffset = tmpoffset;
-	 }
-
-	 
-	 if (DBG)
-	    printf("%d: %s, vp %p, offset %d\n", i,  
-		   _tnl_format_info[format].name, (void *)vp,
-		   vtx->attr[j].vertoffset);   
-
-	 offset += _tnl_format_info[format].attrsize;
-	 j++;
-      }
-   }
-
-   vtx->attr_count = j;
-
-   if (unpacked_size)
-      vtx->vertex_size = unpacked_size;
-   else
-      vtx->vertex_size = offset;
-
-   assert(vtx->vertex_size <= vtx->max_vertex_size);
-   return vtx->vertex_size;
-}
-
-
-
-void _tnl_invalidate_vertices( GLcontext *ctx, GLuint newinputs )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   vtx->new_inputs |= newinputs;
-}
-
-
-/* This event has broader use beyond this file - will move elsewhere
- * and probably invoke a driver callback.
- */
-void _tnl_notify_pipeline_output_change( GLcontext *ctx )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   invalidate_funcs(vtx);
-}
-
-
-static void adjust_input_ptrs( GLcontext *ctx, GLint diff)
-{
-   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   struct tnl_clipspace_attr *a = vtx->attr;
-   const GLuint count = vtx->attr_count;
-   GLuint j;
-
-   diff -= 1;
-   for (j=0; j<count; ++j) {
-           register GLvector4f *vptr = VB->AttribPtr[a->attrib];
-	   (a++)->inputptr += diff*vptr->stride;
-   }
-}
-
-static void update_input_ptrs( GLcontext *ctx, GLuint start )
-{
-   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   struct tnl_clipspace_attr *a = vtx->attr;
-   const GLuint count = vtx->attr_count;
-   GLuint j;
-   
-   for (j = 0; j < count; j++) {
-      GLvector4f *vptr = VB->AttribPtr[a[j].attrib];
-
-      if (vtx->emit != choose_emit_func) {
-	 assert(a[j].inputstride == vptr->stride);
-	 assert(a[j].inputsize == vptr->size);
-      }
-
-      a[j].inputptr = ((GLubyte *)vptr->data) + start * vptr->stride;
-   }
-   
-   if (a->vp) {
-      vtx->vp_scale[0] = a->vp[MAT_SX];
-      vtx->vp_scale[1] = a->vp[MAT_SY];
-      vtx->vp_scale[2] = a->vp[MAT_SZ];
-      vtx->vp_scale[3] = 1.0;
-      vtx->vp_xlate[0] = a->vp[MAT_TX];
-      vtx->vp_xlate[1] = a->vp[MAT_TY];
-      vtx->vp_xlate[2] = a->vp[MAT_TZ];
-      vtx->vp_xlate[3] = 0.0;
-   }
-}
-
-
-void _tnl_build_vertices( GLcontext *ctx,
-			  GLuint start,
-			  GLuint end,
-			  GLuint newinputs )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);  
-   update_input_ptrs( ctx, start );      
-   vtx->emit( ctx, end - start, 
-	      (GLubyte *)(vtx->vertex_buf + 
-			  start * vtx->vertex_size));
-}
-
-/* Emit VB vertices start..end to dest.  Note that VB vertex at
- * postion start will be emitted to dest at position zero.
- */
-void *_tnl_emit_vertices_to_buffer( GLcontext *ctx,
-				    GLuint start,
-				    GLuint end,
-				    void *dest )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
-   update_input_ptrs(ctx, start);
-   /* Note: dest should not be adjusted for non-zero 'start' values:
-    */
-   vtx->emit( ctx, end - start, (GLubyte*) dest );	
-   return (void *)((GLubyte *)dest + vtx->vertex_size * (end - start));
-}
-
-/* Emit indexed VB vertices start..end to dest.  Note that VB vertex at
- * postion start will be emitted to dest at position zero.
- */
-
-void *_tnl_emit_indexed_vertices_to_buffer( GLcontext *ctx,
-					    const GLuint *elts,
-					    GLuint start,
-					    GLuint end,
-					    void *dest )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-   GLuint oldIndex;
-   GLubyte *cdest = dest;
-
-   update_input_ptrs(ctx, oldIndex = elts[start++]);
-   vtx->emit( ctx, 1, cdest );
-   cdest += vtx->vertex_size;
-
-   for (; start < end; ++start) {
-      adjust_input_ptrs(ctx, elts[start] - oldIndex);
-      oldIndex = elts[start];
-      vtx->emit( ctx, 1, cdest);
-      cdest += vtx->vertex_size;
-   }
-
-   return (void *) cdest;
-}
-
-
-void _tnl_init_vertices( GLcontext *ctx, 
-			GLuint vb_size,
-			GLuint max_vertex_size )
-{
-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);  
-
-   _tnl_install_attrs( ctx, NULL, 0, NULL, 0 );
-
-   vtx->need_extras = GL_TRUE;
-   if (max_vertex_size > vtx->max_vertex_size) {
-      _tnl_free_vertices( ctx );
-      vtx->max_vertex_size = max_vertex_size;
-      vtx->vertex_buf = (GLubyte *)_mesa_align_calloc(vb_size * max_vertex_size, 32 );
-      invalidate_funcs(vtx);
-   }
-
-   switch(CHAN_TYPE) {
-   case GL_UNSIGNED_BYTE:
-      vtx->chan_scale[0] = 255.0;
-      vtx->chan_scale[1] = 255.0;
-      vtx->chan_scale[2] = 255.0;
-      vtx->chan_scale[3] = 255.0;
-      break;
-   case GL_UNSIGNED_SHORT:
-      vtx->chan_scale[0] = 65535.0;
-      vtx->chan_scale[1] = 65535.0;
-      vtx->chan_scale[2] = 65535.0;
-      vtx->chan_scale[3] = 65535.0;
-      break;
-   default:
-      vtx->chan_scale[0] = 1.0;
-      vtx->chan_scale[1] = 1.0;
-      vtx->chan_scale[2] = 1.0;
-      vtx->chan_scale[3] = 1.0;
-      break;
-   }
-
-   vtx->identity[0] = 0.0;
-   vtx->identity[1] = 0.0;
-   vtx->identity[2] = 0.0;
-   vtx->identity[3] = 1.0;
-
-   vtx->codegen_emit = NULL;
-
-#ifdef USE_SSE_ASM
-   if (!_mesa_getenv("MESA_NO_CODEGEN"))
-      vtx->codegen_emit = _tnl_generate_sse_emit;
-#endif
-}
-
-
-void _tnl_free_vertices( GLcontext *ctx )
-{
-   TNLcontext *tnl = TNL_CONTEXT(ctx);
-   if (tnl) {
-      struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-      struct tnl_clipspace_fastpath *fp, *tmp;
-
-      if (vtx->vertex_buf) {
-         _mesa_align_free(vtx->vertex_buf);
-         vtx->vertex_buf = NULL;
-      }
-
-      for (fp = vtx->fastpath ; fp ; fp = tmp) {
-         tmp = fp->next;
-         FREE(fp->attr);
-
-         /* KW: At the moment, fp->func is constrained to be allocated by
-          * _mesa_exec_alloc(), as the hardwired fastpaths in
-          * t_vertex_generic.c are handled specially.  It would be nice
-          * to unify them, but this probably won't change until this
-          * module gets another overhaul.
-          */
-         _mesa_exec_free((void *) fp->func);
-         FREE(fp);
-      }
-
-      vtx->fastpath = NULL;
-   }
-}
+/*

+ * Copyright 2003 Tungsten Graphics, inc.

+ * 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

+ * on the rights to use, copy, modify, merge, publish, distribute, sub

+ * license, 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 (including the next

+ * paragraph) 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 NON-INFRINGEMENT.  IN NO EVENT SHALL

+ * TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS 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 <keithw@tungstengraphics.com>

+ */

+

+#include "main/glheader.h"

+#include "main/context.h"

+#include "main/colormac.h"

+

+#include "t_context.h"

+#include "t_vertex.h"

+

+#define DBG 0

+

+/* Build and manage clipspace/ndc/window vertices.

+ */

+

+static GLboolean match_fastpath( struct tnl_clipspace *vtx,

+				 const struct tnl_clipspace_fastpath *fp)

+{

+   GLuint j;

+

+   if (vtx->attr_count != fp->attr_count) 

+      return GL_FALSE;

+

+   for (j = 0; j < vtx->attr_count; j++) 

+      if (vtx->attr[j].format != fp->attr[j].format ||

+	  vtx->attr[j].inputsize != fp->attr[j].size ||

+	  vtx->attr[j].vertoffset != fp->attr[j].offset) 

+	 return GL_FALSE;

+      

+   if (fp->match_strides) {

+      if (vtx->vertex_size != fp->vertex_size)

+	 return GL_FALSE;

+

+      for (j = 0; j < vtx->attr_count; j++) 

+	 if (vtx->attr[j].inputstride != fp->attr[j].stride) 

+	    return GL_FALSE;

+   }

+   

+   return GL_TRUE;

+}

+

+static GLboolean search_fastpath_emit( struct tnl_clipspace *vtx )

+{

+   struct tnl_clipspace_fastpath *fp = vtx->fastpath;

+

+   for ( ; fp ; fp = fp->next) {

+      if (match_fastpath(vtx, fp)) {

+         vtx->emit = fp->func;

+	 return GL_TRUE;

+      }

+   }

+

+   return GL_FALSE;

+}

+

+void _tnl_register_fastpath( struct tnl_clipspace *vtx,

+			     GLboolean match_strides )

+{

+   struct tnl_clipspace_fastpath *fastpath = CALLOC_STRUCT(tnl_clipspace_fastpath);

+   GLuint i;

+

+   fastpath->vertex_size = vtx->vertex_size;

+   fastpath->attr_count = vtx->attr_count;

+   fastpath->match_strides = match_strides;

+   fastpath->func = vtx->emit;

+   fastpath->attr = (struct tnl_attr_type *)

+      malloc(vtx->attr_count * sizeof(fastpath->attr[0]));

+

+   for (i = 0; i < vtx->attr_count; i++) {

+      fastpath->attr[i].format = vtx->attr[i].format;

+      fastpath->attr[i].stride = vtx->attr[i].inputstride;

+      fastpath->attr[i].size = vtx->attr[i].inputsize;

+      fastpath->attr[i].offset = vtx->attr[i].vertoffset;

+   }

+

+   fastpath->next = vtx->fastpath;

+   vtx->fastpath = fastpath;

+}

+

+

+

+/***********************************************************************

+ * Build codegen functions or return generic ones:

+ */

+static void choose_emit_func( struct gl_context *ctx, GLuint count, GLubyte *dest)

+{

+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   struct tnl_clipspace_attr *a = vtx->attr;

+   const GLuint attr_count = vtx->attr_count;

+   GLuint j;

+

+   for (j = 0; j < attr_count; j++) {

+      GLvector4f *vptr = VB->AttribPtr[a[j].attrib];

+      a[j].inputstride = vptr->stride;

+      a[j].inputsize = vptr->size;

+      a[j].emit = a[j].insert[vptr->size - 1]; /* not always used */

+   }

+

+   vtx->emit = NULL;

+   

+   /* Does this match an existing (hardwired, codegen or known-bad)

+    * fastpath?

+    */

+   if (search_fastpath_emit(vtx)) {

+      /* Use this result.  If it is null, then it is already known

+       * that the current state will fail for codegen and there is no

+       * point trying again.

+       */

+   }

+   else if (vtx->codegen_emit) {

+      vtx->codegen_emit(ctx);

+   }

+

+   if (!vtx->emit) {

+      _tnl_generate_hardwired_emit(ctx);

+   }

+

+   /* Otherwise use the generic version:

+    */

+   if (!vtx->emit)

+      vtx->emit = _tnl_generic_emit;

+

+   vtx->emit( ctx, count, dest );

+}

+

+

+

+static void choose_interp_func( struct gl_context *ctx,

+				GLfloat t,

+				GLuint edst, GLuint eout, GLuint ein,

+				GLboolean force_boundary )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+

+   if (vtx->need_extras && 

+       (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {

+      vtx->interp = _tnl_generic_interp_extras;

+   } else {

+      vtx->interp = _tnl_generic_interp;

+   }

+

+   vtx->interp( ctx, t, edst, eout, ein, force_boundary );

+}

+

+

+static void choose_copy_pv_func(  struct gl_context *ctx, GLuint edst, GLuint esrc )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+

+   if (vtx->need_extras && 

+       (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {

+      vtx->copy_pv = _tnl_generic_copy_pv_extras;

+   } else {

+      vtx->copy_pv = _tnl_generic_copy_pv;

+   }

+

+   vtx->copy_pv( ctx, edst, esrc );

+}

+

+

+/***********************************************************************

+ * Public entrypoints, mostly dispatch to the above:

+ */

+

+

+/* Interpolate between two vertices to produce a third:

+ */

+void _tnl_interp( struct gl_context *ctx,

+		  GLfloat t,

+		  GLuint edst, GLuint eout, GLuint ein,

+		  GLboolean force_boundary )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   vtx->interp( ctx, t, edst, eout, ein, force_boundary );

+}

+

+/* Copy colors from one vertex to another:

+ */

+void _tnl_copy_pv(  struct gl_context *ctx, GLuint edst, GLuint esrc )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   vtx->copy_pv( ctx, edst, esrc );

+}

+

+

+/* Extract a named attribute from a hardware vertex.  Will have to

+ * reverse any viewport transformation, swizzling or other conversions

+ * which may have been applied:

+ */

+void _tnl_get_attr( struct gl_context *ctx, const void *vin,

+			      GLenum attr, GLfloat *dest )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   const struct tnl_clipspace_attr *a = vtx->attr;

+   const GLuint attr_count = vtx->attr_count;

+   GLuint j;

+

+   for (j = 0; j < attr_count; j++) {

+      if (a[j].attrib == attr) {

+	 a[j].extract( &a[j], dest, (GLubyte *)vin + a[j].vertoffset );

+	 return;

+      }

+   }

+

+   /* Else return the value from ctx->Current.

+    */

+   if (attr == _TNL_ATTRIB_POINTSIZE) {

+      /* If the hardware vertex doesn't have point size then use size from

+       * struct gl_context.  XXX this will be wrong if drawing attenuated points!

+       */

+      dest[0] = ctx->Point.Size;

+   }

+   else {

+      memcpy( dest, ctx->Current.Attrib[attr], 4*sizeof(GLfloat));

+   }

+}

+

+

+/* Complementary operation to the above.

+ */

+void _tnl_set_attr( struct gl_context *ctx, void *vout,

+		    GLenum attr, const GLfloat *src )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   const struct tnl_clipspace_attr *a = vtx->attr;

+   const GLuint attr_count = vtx->attr_count;

+   GLuint j;

+

+   for (j = 0; j < attr_count; j++) {

+      if (a[j].attrib == attr) {

+	 a[j].insert[4-1]( &a[j], (GLubyte *)vout + a[j].vertoffset, src );

+	 return;

+      }

+   }

+}

+

+

+void *_tnl_get_vertex( struct gl_context *ctx, GLuint nr )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+

+   return vtx->vertex_buf + nr * vtx->vertex_size;

+}

+

+void _tnl_invalidate_vertex_state( struct gl_context *ctx, GLuint new_state )

+{

+   if (new_state & (_DD_NEW_TRI_LIGHT_TWOSIDE|_DD_NEW_TRI_UNFILLED) ) {

+      struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+      vtx->new_inputs = ~0;

+      vtx->interp = choose_interp_func;

+      vtx->copy_pv = choose_copy_pv_func;

+   }

+}

+

+static void invalidate_funcs( struct tnl_clipspace *vtx )

+{

+   vtx->emit = choose_emit_func;

+   vtx->interp = choose_interp_func;

+   vtx->copy_pv = choose_copy_pv_func;

+   vtx->new_inputs = ~0;

+}

+

+GLuint _tnl_install_attrs( struct gl_context *ctx, const struct tnl_attr_map *map,

+			   GLuint nr, const GLfloat *vp, 

+			   GLuint unpacked_size )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   GLuint offset = 0;

+   GLuint i, j;

+

+   assert(nr < _TNL_ATTRIB_MAX);

+   assert(nr == 0 || map[0].attrib == VERT_ATTRIB_POS);

+

+   vtx->new_inputs = ~0;

+   vtx->need_viewport = GL_FALSE;

+

+   if (vp) {

+      vtx->need_viewport = GL_TRUE;

+   }

+

+   for (j = 0, i = 0; i < nr; i++) {

+      const GLuint format = map[i].format;

+      if (format == EMIT_PAD) {

+	 if (DBG)

+	    printf("%d: pad %d, offset %d\n", i,  

+		   map[i].offset, offset);  

+

+	 offset += map[i].offset;

+

+      }

+      else {

+	 GLuint tmpoffset;

+

+	 if (unpacked_size) 

+	    tmpoffset = map[i].offset;

+	 else

+	    tmpoffset = offset;

+

+	 if (vtx->attr_count != j ||

+	     vtx->attr[j].attrib != map[i].attrib ||

+	     vtx->attr[j].format != format ||

+	     vtx->attr[j].vertoffset != tmpoffset) {

+	    invalidate_funcs(vtx);

+

+	    vtx->attr[j].attrib = map[i].attrib;

+	    vtx->attr[j].format = format;

+	    vtx->attr[j].vp = vp;

+	    vtx->attr[j].insert = _tnl_format_info[format].insert;

+	    vtx->attr[j].extract = _tnl_format_info[format].extract;

+	    vtx->attr[j].vertattrsize = _tnl_format_info[format].attrsize;

+	    vtx->attr[j].vertoffset = tmpoffset;

+	 }

+

+	 

+	 if (DBG)

+	    printf("%d: %s, vp %p, offset %d\n", i,  

+		   _tnl_format_info[format].name, (void *)vp,

+		   vtx->attr[j].vertoffset);   

+

+	 offset += _tnl_format_info[format].attrsize;

+	 j++;

+      }

+   }

+

+   vtx->attr_count = j;

+

+   if (unpacked_size)

+      vtx->vertex_size = unpacked_size;

+   else

+      vtx->vertex_size = offset;

+

+   assert(vtx->vertex_size <= vtx->max_vertex_size);

+   return vtx->vertex_size;

+}

+

+

+

+void _tnl_invalidate_vertices( struct gl_context *ctx, GLuint newinputs )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   vtx->new_inputs |= newinputs;

+}

+

+

+/* This event has broader use beyond this file - will move elsewhere

+ * and probably invoke a driver callback.

+ */

+void _tnl_notify_pipeline_output_change( struct gl_context *ctx )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   invalidate_funcs(vtx);

+}

+

+

+static void adjust_input_ptrs( struct gl_context *ctx, GLint diff)

+{

+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   struct tnl_clipspace_attr *a = vtx->attr;

+   const GLuint count = vtx->attr_count;

+   GLuint j;

+

+   diff -= 1;

+   for (j=0; j<count; ++j) {

+           register GLvector4f *vptr = VB->AttribPtr[a->attrib];

+	   (a++)->inputptr += diff*vptr->stride;

+   }

+}

+

+static void update_input_ptrs( struct gl_context *ctx, GLuint start )

+{

+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   struct tnl_clipspace_attr *a = vtx->attr;

+   const GLuint count = vtx->attr_count;

+   GLuint j;

+   

+   for (j = 0; j < count; j++) {

+      GLvector4f *vptr = VB->AttribPtr[a[j].attrib];

+

+      if (vtx->emit != choose_emit_func) {

+	 assert(a[j].inputstride == vptr->stride);

+	 assert(a[j].inputsize == vptr->size);

+      }

+

+      a[j].inputptr = ((GLubyte *)vptr->data) + start * vptr->stride;

+   }

+   

+   if (a->vp) {

+      vtx->vp_scale[0] = a->vp[MAT_SX];

+      vtx->vp_scale[1] = a->vp[MAT_SY];

+      vtx->vp_scale[2] = a->vp[MAT_SZ];

+      vtx->vp_scale[3] = 1.0;

+      vtx->vp_xlate[0] = a->vp[MAT_TX];

+      vtx->vp_xlate[1] = a->vp[MAT_TY];

+      vtx->vp_xlate[2] = a->vp[MAT_TZ];

+      vtx->vp_xlate[3] = 0.0;

+   }

+}

+

+

+void _tnl_build_vertices( struct gl_context *ctx,

+			  GLuint start,

+			  GLuint end,

+			  GLuint newinputs )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);  

+   update_input_ptrs( ctx, start );      

+   vtx->emit( ctx, end - start, 

+	      (GLubyte *)(vtx->vertex_buf + 

+			  start * vtx->vertex_size));

+}

+

+/* Emit VB vertices start..end to dest.  Note that VB vertex at

+ * postion start will be emitted to dest at position zero.

+ */

+void *_tnl_emit_vertices_to_buffer( struct gl_context *ctx,

+				    GLuint start,

+				    GLuint end,

+				    void *dest )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+

+   update_input_ptrs(ctx, start);

+   /* Note: dest should not be adjusted for non-zero 'start' values:

+    */

+   vtx->emit( ctx, end - start, (GLubyte*) dest );	

+   return (void *)((GLubyte *)dest + vtx->vertex_size * (end - start));

+}

+

+/* Emit indexed VB vertices start..end to dest.  Note that VB vertex at

+ * postion start will be emitted to dest at position zero.

+ */

+

+void *_tnl_emit_indexed_vertices_to_buffer( struct gl_context *ctx,

+					    const GLuint *elts,

+					    GLuint start,

+					    GLuint end,

+					    void *dest )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+   GLuint oldIndex;

+   GLubyte *cdest = dest;

+

+   update_input_ptrs(ctx, oldIndex = elts[start++]);

+   vtx->emit( ctx, 1, cdest );

+   cdest += vtx->vertex_size;

+

+   for (; start < end; ++start) {

+      adjust_input_ptrs(ctx, elts[start] - oldIndex);

+      oldIndex = elts[start];

+      vtx->emit( ctx, 1, cdest);

+      cdest += vtx->vertex_size;

+   }

+

+   return (void *) cdest;

+}

+

+

+void _tnl_init_vertices( struct gl_context *ctx, 

+			GLuint vb_size,

+			GLuint max_vertex_size )

+{

+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);  

+

+   _tnl_install_attrs( ctx, NULL, 0, NULL, 0 );

+

+   vtx->need_extras = GL_TRUE;

+   if (max_vertex_size > vtx->max_vertex_size) {

+      _tnl_free_vertices( ctx );

+      vtx->max_vertex_size = max_vertex_size;

+      vtx->vertex_buf = (GLubyte *)_mesa_align_calloc(vb_size * max_vertex_size, 32 );

+      invalidate_funcs(vtx);

+   }

+

+   switch(CHAN_TYPE) {

+   case GL_UNSIGNED_BYTE:

+      vtx->chan_scale[0] = 255.0;

+      vtx->chan_scale[1] = 255.0;

+      vtx->chan_scale[2] = 255.0;

+      vtx->chan_scale[3] = 255.0;

+      break;

+   case GL_UNSIGNED_SHORT:

+      vtx->chan_scale[0] = 65535.0;

+      vtx->chan_scale[1] = 65535.0;

+      vtx->chan_scale[2] = 65535.0;

+      vtx->chan_scale[3] = 65535.0;

+      break;

+   default:

+      vtx->chan_scale[0] = 1.0;

+      vtx->chan_scale[1] = 1.0;

+      vtx->chan_scale[2] = 1.0;

+      vtx->chan_scale[3] = 1.0;

+      break;

+   }

+

+   vtx->identity[0] = 0.0;

+   vtx->identity[1] = 0.0;

+   vtx->identity[2] = 0.0;

+   vtx->identity[3] = 1.0;

+

+   vtx->codegen_emit = NULL;

+

+#ifdef USE_SSE_ASM

+   if (!_mesa_getenv("MESA_NO_CODEGEN"))

+      vtx->codegen_emit = _tnl_generate_sse_emit;

+#endif

+}

+

+

+void _tnl_free_vertices( struct gl_context *ctx )

+{

+   TNLcontext *tnl = TNL_CONTEXT(ctx);

+   if (tnl) {

+      struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

+      struct tnl_clipspace_fastpath *fp, *tmp;

+

+      if (vtx->vertex_buf) {

+         _mesa_align_free(vtx->vertex_buf);

+         vtx->vertex_buf = NULL;

+      }

+

+      for (fp = vtx->fastpath ; fp ; fp = tmp) {

+         tmp = fp->next;

+         FREE(fp->attr);

+

+         /* KW: At the moment, fp->func is constrained to be allocated by

+          * _mesa_exec_alloc(), as the hardwired fastpaths in

+          * t_vertex_generic.c are handled specially.  It would be nice

+          * to unify them, but this probably won't change until this

+          * module gets another overhaul.

+          */

+         _mesa_exec_free((void *) fp->func);

+         FREE(fp);

+      }

+

+      vtx->fastpath = NULL;

+   }

+}