Move edgeflag into the VERT_ATTRIB_SEVEN slot. This means that our

NV_vertex_program implementation has slightly incorrect aliasing
behaviour.  I think this is reasonable given the simplification and
the fact that the mainstream ARB_vp continues to have the correct
behaviour.

7 files changed, 94 insertions, 89 deletions

diff --git a/src/mesa/vbo/vbo_context.c b/src/mesa/vbo/vbo_context.c
index 291eb0b..165e32d 100644
--- a/src/mesa/vbo/vbo_context.c
+++ b/src/mesa/vbo/vbo_context.c
@@ -61,27 +61,14 @@ static void init_legacy_currval(GLcontext *ctx)
    for (i = 0; i < NR_LEGACY_ATTRIBS; i++) {
       struct gl_client_array *cl = &arrays[i];
 
-      switch (i) {
-      case VBO_ATTRIB_EDGEFLAG:
-	 cl->Type = GL_UNSIGNED_BYTE;
-	 cl->Ptr = (const void *)&ctx->Current.EdgeFlag;
-	 break;
-      case VBO_ATTRIB_INDEX:
-	 cl->Type = GL_FLOAT;
-	 cl->Ptr = (const void *)&ctx->Current.Index;
-	 break;
-      default:
-	 cl->Type = GL_FLOAT;
-	 cl->Ptr = (const void *)ctx->Current.Attrib[i];
-	 break;
-      }
-
-      /* This will have to be determined at runtime:
+      /* Size will have to be determined at runtime:
        */
       cl->Size = 1;
       cl->Stride = 0;
       cl->StrideB = 0;
       cl->Enabled = 1;
+      cl->Type = GL_FLOAT;
+      cl->Ptr = (const void *)ctx->Current.Attrib[i];
       cl->BufferObj = ctx->Array.NullBufferObj;
    }
 }
@@ -118,12 +105,12 @@ static void init_mat_currval(GLcontext *ctx)
    struct gl_client_array *arrays = vbo->mat_currval;
    GLuint i;
 
-   memset(arrays, 0, sizeof(*arrays) * NR_GENERIC_ATTRIBS);
+   memset(arrays, 0, sizeof(*arrays) * NR_MAT_ATTRIBS);
 
    /* Set up a constant (StrideB == 0) array for each current
     * attribute:
     */
-   for (i = 0; i < NR_GENERIC_ATTRIBS; i++) {
+   for (i = 0; i < NR_MAT_ATTRIBS; i++) {
       struct gl_client_array *cl = &arrays[i];
 
       /* Size is fixed for the material attributes, for others will
@@ -156,7 +143,23 @@ static void init_mat_currval(GLcontext *ctx)
    }
 }
 
+#if 0
 
+static void vbo_exec_current_init( struct vbo_exec_context *exec ) 
+{
+   GLcontext *ctx = exec->ctx;
+   GLint i;
+
+   /* setup the pointers for the typical 16 vertex attributes */
+   for (i = 0; i < VBO_ATTRIB_FIRST_MATERIAL; i++) 
+      exec->vtx.current[i] = ctx->Current.Attrib[i];
+
+   /* setup pointers for the 12 material attributes */
+   for (i = 0; i < MAT_ATTRIB_MAX; i++)
+      exec->vtx.current[VBO_ATTRIB_FIRST_MATERIAL + i] = 
+	 ctx->Light.Material.Attrib[i];
+}
+#endif
 
 GLboolean _vbo_CreateContext( GLcontext *ctx )
 {
@@ -171,13 +174,11 @@ GLboolean _vbo_CreateContext( GLcontext *ctx )
       return GL_FALSE;
    }
 
-   /* Hook our functions into exec and compile dispatch tables.  These
-    * will pretty much be permanently installed, which means that the
-    * vtxfmt mechanism can be removed now.
+   /* TODO: remove these pointers.
     */
-   vbo_exec_init( ctx );
-   vbo_save_init( ctx );
-
+   vbo->legacy_currval = &vbo->currval[VBO_ATTRIB_POS];
+   vbo->generic_currval = &vbo->currval[VBO_ATTRIB_GENERIC0];
+   vbo->mat_currval = &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT];
 
    init_legacy_currval( ctx );
    init_generic_currval( ctx );
@@ -207,6 +208,14 @@ GLboolean _vbo_CreateContext( GLcontext *ctx )
    /* By default: 
     */
    vbo->draw_prims = _tnl_draw_prims;
+
+   /* Hook our functions into exec and compile dispatch tables.  These
+    * will pretty much be permanently installed, which means that the
+    * vtxfmt mechanism can be removed now.
+    */
+   vbo_exec_init( ctx );
+   vbo_save_init( ctx );
+
    
    return GL_TRUE;
 }
diff --git a/src/mesa/vbo/vbo_context.h b/src/mesa/vbo/vbo_context.h
index 982da00..cd02472 100644
--- a/src/mesa/vbo/vbo_context.h
+++ b/src/mesa/vbo/vbo_context.h
@@ -57,13 +57,21 @@
 
 
 struct vbo_context {
-   struct gl_client_array legacy_currval[16];
-   struct gl_client_array generic_currval[16];
-   struct gl_client_array mat_currval[16];
+   struct gl_client_array currval[VBO_ATTRIB_MAX];
+   
+   /* These point into the above.  TODO: remove. 
+    */
+   struct gl_client_array *legacy_currval;
+   struct gl_client_array *generic_currval;
+   struct gl_client_array *mat_currval;
 
    GLuint map_vp_none[32];
    GLuint map_vp_arb[32];
 
+   GLfloat *current[VBO_ATTRIB_MAX]; /* points into ctx->Current, ctx->Light.Material */
+   GLfloat CurrentFloatEdgeFlag;
+
+
    struct vbo_exec_context exec;
    struct vbo_save_context save;
 
diff --git a/src/mesa/vbo/vbo_exec.h b/src/mesa/vbo/vbo_exec.h
index ef158de..e1fc7b2 100644
--- a/src/mesa/vbo/vbo_exec.h
+++ b/src/mesa/vbo/vbo_exec.h
@@ -87,9 +87,6 @@ struct vbo_exec_context
       GLfloat *vbptr;		     /* cursor, points into buffer */
       GLfloat vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
 
-      GLfloat *current[VBO_ATTRIB_MAX]; /* points into ctx->Current, ctx->Light.Material */
-      GLfloat CurrentFloatEdgeFlag;
-
       GLuint vert_count;
       GLuint max_vert;
       struct vbo_exec_copied_vtx copied;
diff --git a/src/mesa/vbo/vbo_exec_api.c b/src/mesa/vbo/vbo_exec_api.c
index c764c4d..71fee8c 100644
--- a/src/mesa/vbo/vbo_exec_api.c
+++ b/src/mesa/vbo/vbo_exec_api.c
@@ -130,17 +130,28 @@ void vbo_exec_vtx_wrap( struct vbo_exec_context *exec )
 static void vbo_exec_copy_to_current( struct vbo_exec_context *exec )
 {
    GLcontext *ctx = exec->ctx;
+   struct vbo_context *vbo = vbo_context(ctx);
    GLuint i;
 
    for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) {
       if (exec->vtx.attrsz[i]) {
+	 GLfloat *current = (GLfloat *)vbo->currval[i].Ptr;
+
          /* Note: the exec->vtx.current[i] pointers point into the
           * ctx->Current.Attrib and ctx->Light.Material.Attrib arrays.
           */
-	 COPY_CLEAN_4V(exec->vtx.current[i], 
+	 COPY_CLEAN_4V(current, 
 		       exec->vtx.attrsz[i], 
 		       exec->vtx.attrptr[i]);
 
+	 
+	 /* Given that we explicitly state size here, there is no need
+	  * for the COPY_CLEAN above, could just copy 16 bytes and be
+	  * done.  The only problem is when Mesa accesses ctx->Current
+	  * directly.
+	  */
+	 vbo->currval[i].Size = exec->vtx.attrsz[i];
+
 	 /* This triggers rather too much recalculation of Mesa state
 	  * that doesn't get used (eg light positions).
 	  */
@@ -150,19 +161,6 @@ static void vbo_exec_copy_to_current( struct vbo_exec_context *exec )
       }
    }
 
-   /* color index is special (it's not a float[4] so COPY_CLEAN_4V above
-    * will trash adjacent memory!)
-    */
-   if (exec->vtx.attrsz[VBO_ATTRIB_INDEX]) {
-      ctx->Current.Index = exec->vtx.attrptr[VBO_ATTRIB_INDEX][0];
-   }
-
-   /* Edgeflag requires additional treatment:
-    */
-   if (exec->vtx.attrsz[VBO_ATTRIB_EDGEFLAG]) {
-      ctx->Current.EdgeFlag = (exec->vtx.CurrentFloatEdgeFlag == 1.0);
-   }
-
    /* Colormaterial -- this kindof sucks.
     */
    if (ctx->Light.ColorMaterialEnabled &&
@@ -178,21 +176,19 @@ static void vbo_exec_copy_to_current( struct vbo_exec_context *exec )
 static void vbo_exec_copy_from_current( struct vbo_exec_context *exec )
 {
    GLcontext *ctx = exec->ctx;
+   struct vbo_context *vbo = vbo_context(ctx);
    GLint i;
 
-   /* Edgeflag requires additional treatment:
-    */
-   exec->vtx.CurrentFloatEdgeFlag = 
-      (GLfloat)ctx->Current.EdgeFlag;
-   
-   for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) 
+   for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) {
+      const GLfloat *current = (GLfloat *)vbo->currval[i].Ptr;
       switch (exec->vtx.attrsz[i]) {
-      case 4: exec->vtx.attrptr[i][3] = exec->vtx.current[i][3];
-      case 3: exec->vtx.attrptr[i][2] = exec->vtx.current[i][2];
-      case 2: exec->vtx.attrptr[i][1] = exec->vtx.current[i][1];
-      case 1: exec->vtx.attrptr[i][0] = exec->vtx.current[i][0];
+      case 4: exec->vtx.attrptr[i][3] = current[3];
+      case 3: exec->vtx.attrptr[i][2] = current[2];
+      case 2: exec->vtx.attrptr[i][1] = current[1];
+      case 1: exec->vtx.attrptr[i][0] = current[0];
 	 break;
       }
+   }
 
    ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT;
 }
@@ -205,6 +201,7 @@ static void vbo_exec_wrap_upgrade_vertex( struct vbo_exec_context *exec,
 					  GLuint newsz )
 {
    GLcontext *ctx = exec->ctx;
+   struct vbo_context *vbo = vbo_context(ctx);
    GLint lastcount = exec->vtx.vert_count;
    GLfloat *tmp;
    GLuint oldsz;
@@ -281,7 +278,8 @@ static void vbo_exec_wrap_upgrade_vertex( struct vbo_exec_context *exec,
 		     data += oldsz;
 		     dest += newsz;
 		  } else {
-		     COPY_SZ_4V( dest, newsz, exec->vtx.current[j] );
+		     const GLfloat *current = (const GLfloat *)vbo->currval[j].Ptr;
+		     COPY_SZ_4V( dest, newsz, current );
 		     dest += newsz;
 		  }
 	       }
@@ -627,27 +625,10 @@ static void vbo_exec_vtxfmt_init( struct vbo_exec_context *exec )
 }
 
 
-static void vbo_exec_current_init( struct vbo_exec_context *exec ) 
-{
-   GLcontext *ctx = exec->ctx;
-   GLint i;
-
-   /* setup the pointers for the typical 16 vertex attributes */
-   for (i = 0; i < VBO_ATTRIB_FIRST_MATERIAL; i++) 
-      exec->vtx.current[i] = ctx->Current.Attrib[i];
-
-   /* setup pointers for the 12 material attributes */
-   for (i = 0; i < MAT_ATTRIB_MAX; i++)
-      exec->vtx.current[VBO_ATTRIB_FIRST_MATERIAL + i] = 
-	 ctx->Light.Material.Attrib[i];
-
-   exec->vtx.current[VBO_ATTRIB_INDEX] = &ctx->Current.Index;
-   exec->vtx.current[VBO_ATTRIB_EDGEFLAG] = &exec->vtx.CurrentFloatEdgeFlag;
-}
-
 void vbo_exec_vtx_init( struct vbo_exec_context *exec )
 {
    GLcontext *ctx = exec->ctx;
+   struct vbo_context *vbo = vbo_context(ctx);
    GLuint i;
 
    /* Allocate a buffer object.  Will just reuse this object
@@ -656,7 +637,6 @@ void vbo_exec_vtx_init( struct vbo_exec_context *exec )
    exec->vtx.bufferobj = ctx->Array.NullBufferObj;
    exec->vtx.buffer_map = ALIGN_MALLOC(VBO_VERT_BUFFER_SIZE * sizeof(GLfloat), 64);
 
-   vbo_exec_current_init( exec );
    vbo_exec_vtxfmt_init( exec );
 
    /* Hook our functions into the dispatch table.
@@ -668,7 +648,13 @@ void vbo_exec_vtx_init( struct vbo_exec_context *exec )
       exec->vtx.active_sz[i] = 0;
       exec->vtx.inputs[i] = &exec->vtx.arrays[i];
    }
- 
+   
+   {
+      struct gl_client_array *arrays = exec->vtx.arrays;
+      memcpy(arrays,      vbo->legacy_currval,  16 * sizeof(arrays[0]));
+      memcpy(arrays + 16, vbo->generic_currval, 16 * sizeof(arrays[0]));
+   }
+
    exec->vtx.vertex_size = 0;
 }
 
diff --git a/src/mesa/vbo/vbo_exec_draw.c b/src/mesa/vbo/vbo_exec_draw.c
index c1898ae..846d5dc 100644
--- a/src/mesa/vbo/vbo_exec_draw.c
+++ b/src/mesa/vbo/vbo_exec_draw.c
@@ -151,7 +151,7 @@ static void vbo_exec_bind_arrays( GLcontext *ctx )
    switch (get_program_mode(exec->ctx)) {
    case VP_NONE:
       memcpy(arrays,      vbo->legacy_currval, 16 * sizeof(arrays[0]));
-      memcpy(arrays + 16, vbo->mat_currval,    16 * sizeof(arrays[0]));
+      memcpy(arrays + 16, vbo->mat_currval,    MAT_ATTRIB_MAX * sizeof(arrays[0]));
       map = vbo->map_vp_none;
       break;
    case VP_NV:
diff --git a/src/mesa/vbo/vbo_save.c b/src/mesa/vbo/vbo_save.c
index 3a97ea6..e7f4687 100644
--- a/src/mesa/vbo/vbo_save.c
+++ b/src/mesa/vbo/vbo_save.c
@@ -49,13 +49,20 @@ static void vbo_save_callback_init( GLcontext *ctx )
 
 void vbo_save_init( GLcontext *ctx )
 {
-   struct vbo_save_context *save = &vbo_context(ctx)->save;
+   struct vbo_context *vbo = vbo_context(ctx);
+   struct vbo_save_context *save = &vbo->save;
 
    save->ctx = ctx;
 
    vbo_save_api_init( save );
    vbo_save_callback_init(ctx);
 
+   {
+      struct gl_client_array *arrays = save->arrays;
+      memcpy(arrays,      vbo->legacy_currval,  16 * sizeof(arrays[0]));
+      memcpy(arrays + 16, vbo->generic_currval, 16 * sizeof(arrays[0]));
+   }
+
    ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
 }
 
diff --git a/src/mesa/vbo/vbo_save_draw.c b/src/mesa/vbo/vbo_save_draw.c
index 18c770a..527e57d 100644
--- a/src/mesa/vbo/vbo_save_draw.c
+++ b/src/mesa/vbo/vbo_save_draw.c
@@ -41,7 +41,7 @@
 static void _playback_copy_to_current( GLcontext *ctx,
 				       const struct vbo_save_vertex_list *node )
 {
-   struct vbo_save_context *save = &vbo_context(ctx)->save; 
+   struct vbo_context *vbo = vbo_context(ctx);
    GLfloat vertex[VBO_ATTRIB_MAX * 4], *data = vertex;
    GLuint i, offset;
 
@@ -55,7 +55,14 @@ static void _playback_copy_to_current( GLcontext *ctx,
 
    for (i = VBO_ATTRIB_POS+1 ; i <= VBO_ATTRIB_INDEX ; i++) {
       if (node->attrsz[i]) {
-	 COPY_CLEAN_4V(save->current[i], node->attrsz[i], data);
+	 GLfloat *current = (GLfloat *)vbo->currval[i].Ptr;
+
+	 COPY_CLEAN_4V(current, 
+		       node->attrsz[i], 
+		       data);
+
+	 vbo->currval[i].Size = node->attrsz[i];
+
 	 data += node->attrsz[i];
 
 	 if (i >= VBO_ATTRIB_MAT_FRONT_AMBIENT &&
@@ -64,20 +71,11 @@ static void _playback_copy_to_current( GLcontext *ctx,
       }
    }
 
-   /* Edgeflag requires special treatment:
-    */
-   if (node->attrsz[VBO_ATTRIB_EDGEFLAG]) {
-      ctx->Current.EdgeFlag = (data[0] == 1.0);
-   }
-
-
-#if 1
    /* Colormaterial -- this kindof sucks.
     */
    if (ctx->Light.ColorMaterialEnabled) {
       _mesa_update_color_material(ctx, ctx->Current.Attrib[VBO_ATTRIB_COLOR0]);
    }
-#endif
 
    /* CurrentExecPrimitive
     */
@@ -111,7 +109,7 @@ static void vbo_bind_vertex_list( GLcontext *ctx,
    switch (get_program_mode(ctx)) {
    case VP_NONE:
       memcpy(arrays,      vbo->legacy_currval, 16 * sizeof(arrays[0]));
-      memcpy(arrays + 16, vbo->mat_currval,    16 * sizeof(arrays[0]));
+      memcpy(arrays + 16, vbo->mat_currval,    MAT_ATTRIB_MAX * sizeof(arrays[0]));
       map = vbo->map_vp_none;
       break;
    case VP_NV: