Merge remote branch 'upstream/gallium-0.1' into nouveau-gallium-0.1

17 files changed, 279 insertions, 149 deletions

diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index f1e0932b07..ecdb4d219c 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -205,11 +205,14 @@ _mesa_reference_buffer_object(GLcontext *ctx,
       if (deleteFlag) {
 
          /* some sanity checking: don't delete a buffer still in use */
+#if 0
+         /* unfortunately, these tests are invalid during context tear-down */
 	 ASSERT(ctx->Array.ArrayBufferObj != bufObj);
 	 ASSERT(ctx->Array.ElementArrayBufferObj != bufObj);
 	 ASSERT(ctx->Array.ArrayObj->Vertex.BufferObj != bufObj);
-	 ASSERT(ctx->Driver.DeleteBuffer);
+#endif
 
+	 ASSERT(ctx->Driver.DeleteBuffer);
          ctx->Driver.DeleteBuffer(ctx, oldObj);
       }
 
diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c
index b4ed300b2e..ffe6dbfe08 100644
--- a/src/mesa/main/dlist.c
+++ b/src/mesa/main/dlist.c
@@ -6737,6 +6737,11 @@ _mesa_EndList(void)
       _mesa_error(ctx, GL_INVALID_OPERATION, "glEndList");
       return;
    }
+   
+   /* Call before emitting END_OF_LIST, in case the driver wants to
+    * emit opcodes itself.
+    */
+   ctx->Driver.EndList(ctx);
 
    (void) ALLOC_INSTRUCTION(ctx, OPCODE_END_OF_LIST, 0);
 
@@ -6750,8 +6755,6 @@ _mesa_EndList(void)
    if (MESA_VERBOSE & VERBOSE_DISPLAY_LIST)
       mesa_print_display_list(ctx->ListState.CurrentListNum);
 
-   ctx->Driver.EndList(ctx);
-
    ctx->ListState.CurrentList = NULL;
    ctx->ListState.CurrentListNum = 0;
    ctx->ListState.CurrentListPtr = NULL;
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 71a4ca55bc..a5e1cf6a27 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1953,7 +1953,10 @@ struct gl_fragment_program
 {
    struct gl_program Base;   /**< base class */
    GLenum FogOption;
-   GLboolean UsesKill;
+   GLboolean UsesKill;          /**< shader uses KIL instruction */
+   GLboolean UsesPointCoord;    /**< shader uses gl_PointCoord */
+   GLboolean UsesFrontFacing;   /**< shader used gl_FrontFacing */
+   GLboolean UsesFogFragCoord;  /**< shader used gl_FogFragCoord */
 };
 
 
@@ -2143,12 +2146,14 @@ struct gl_shader_program
    GLuint NumShaders;          /**< number of attached shaders */
    struct gl_shader **Shaders; /**< List of attached the shaders */
 
+   /** User-defined attribute bindings (glBindAttribLocation) */
+   struct gl_program_parameter_list *Attributes;
+
    /* post-link info: */
    struct gl_vertex_program *VertexProgram;     /**< Linked vertex program */
    struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */
    struct gl_uniform_list *Uniforms;
    struct gl_program_parameter_list *Varying;
-   struct gl_program_parameter_list *Attributes; /**< Vertex attributes */
    GLboolean LinkStatus;   /**< GL_LINK_STATUS */
    GLboolean Validated;
    GLchar *InfoLog;
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c
index 344af91e17..d355f78a0e 100644
--- a/src/mesa/main/state.c
+++ b/src/mesa/main/state.c
@@ -295,10 +295,10 @@ static void
 update_multisample(GLcontext *ctx)
 {
    ctx->Multisample._Enabled = GL_FALSE;
-   if (ctx->DrawBuffer) {
-      if (ctx->DrawBuffer->Visual.sampleBuffers)
-         ctx->Multisample._Enabled = GL_TRUE;
-   }
+   if (ctx->Multisample.Enabled &&
+       ctx->DrawBuffer &&
+       ctx->DrawBuffer->Visual.sampleBuffers)
+      ctx->Multisample._Enabled = GL_TRUE;
 }
 
 
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index d8b210be53..decdec53ed 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -1,6 +1,6 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.1
+ * Version:  7.2
  *
  * Copyright (C) 2004-2008  Brian Paul   All Rights Reserved.
  *
@@ -497,10 +497,14 @@ _mesa_get_attrib_location(GLcontext *ctx, GLuint program,
    if (!name)
       return -1;
 
-   if (shProg->Attributes) {
-      GLint i = _mesa_lookup_parameter_index(shProg->Attributes, -1, name);
-      if (i >= 0) {
-         return shProg->Attributes->Parameters[i].StateIndexes[0];
+   if (shProg->VertexProgram) {
+      const struct gl_program_parameter_list *attribs =
+         shProg->VertexProgram->Base.Attributes;
+      if (attribs) {
+         GLint i = _mesa_lookup_parameter_index(attribs, -1, name);
+         if (i >= 0) {
+            return attribs->Parameters[i].StateIndexes[0];
+         }
       }
    }
    return -1;
@@ -513,7 +517,7 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
 {
    struct gl_shader_program *shProg;
    const GLint size = -1; /* unknown size */
-   GLint i, oldIndex;
+   GLint i;
    GLenum datatype = GL_FLOAT_VEC4;
 
    shProg = _mesa_lookup_shader_program_err(ctx, program,
@@ -536,14 +540,6 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
       return;
    }
 
-   if (shProg->LinkStatus) {
-      /* get current index/location for the attribute */
-      oldIndex = _mesa_get_attrib_location(ctx, program, name);
-   }
-   else {
-      oldIndex = -1;
-   }
-
    /* this will replace the current value if it's already in the list */
    i = _mesa_add_attribute(shProg->Attributes, name, size, datatype, index);
    if (i < 0) {
@@ -551,12 +547,10 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
       return;
    }
 
-   if (shProg->VertexProgram && oldIndex >= 0 && oldIndex != index) {
-      /* If the index changed, need to search/replace references to that attribute
-       * in the vertex program.
-       */
-      _slang_remap_attribute(&shProg->VertexProgram->Base, oldIndex, index);
-   }
+   /*
+    * Note that this attribute binding won't go into effect until
+    * glLinkProgram is called again.
+    */
 }
 
 
@@ -798,24 +792,29 @@ _mesa_get_active_attrib(GLcontext *ctx, GLuint program, GLuint index,
                         GLsizei maxLength, GLsizei *length, GLint *size,
                         GLenum *type, GLchar *nameOut)
 {
+   const struct gl_program_parameter_list *attribs = NULL;
    struct gl_shader_program *shProg;
 
    shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveAttrib");
    if (!shProg)
       return;
 
-   if (!shProg->Attributes || index >= shProg->Attributes->NumParameters) {
+   if (shProg->VertexProgram)
+      attribs = shProg->VertexProgram->Base.Attributes;
+
+   if (!attribs || index >= attribs->NumParameters) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveAttrib(index)");
       return;
    }
 
-   copy_string(nameOut, maxLength, length,
-               shProg->Attributes->Parameters[index].Name);
+   copy_string(nameOut, maxLength, length, attribs->Parameters[index].Name);
+
    if (size)
-      *size = shProg->Attributes->Parameters[index].Size
-         / sizeof_glsl_type(shProg->Attributes->Parameters[index].DataType);
+      *size = attribs->Parameters[index].Size
+         / sizeof_glsl_type(attribs->Parameters[index].DataType);
+
    if (type)
-      *type = shProg->Attributes->Parameters[index].DataType;
+      *type = attribs->Parameters[index].DataType;
 }
 
 
@@ -937,6 +936,7 @@ static void
 _mesa_get_programiv(GLcontext *ctx, GLuint program,
                     GLenum pname, GLint *params)
 {
+   const struct gl_program_parameter_list *attribs;
    struct gl_shader_program *shProg
       = _mesa_lookup_shader_program(ctx, program);
 
@@ -945,6 +945,11 @@ _mesa_get_programiv(GLcontext *ctx, GLuint program,
       return;
    }
 
+   if (shProg->VertexProgram)
+      attribs = shProg->VertexProgram->Base.Attributes;
+   else
+      attribs = NULL;
+
    switch (pname) {
    case GL_DELETE_STATUS:
       *params = shProg->DeletePending;
@@ -962,11 +967,10 @@ _mesa_get_programiv(GLcontext *ctx, GLuint program,
       *params = shProg->NumShaders;
       break;
    case GL_ACTIVE_ATTRIBUTES:
-      *params = shProg->Attributes ? shProg->Attributes->NumParameters : 0;
+      *params = attribs ? attribs->NumParameters : 0;
       break;
    case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH:
-      *params = _mesa_longest_parameter_name(shProg->Attributes,
-                                             PROGRAM_INPUT) + 1;
+      *params = _mesa_longest_parameter_name(attribs, PROGRAM_INPUT) + 1;
       break;
    case GL_ACTIVE_UNIFORMS:
       *params = shProg->Uniforms ? shProg->Uniforms->NumUniforms : 0;
@@ -1108,7 +1112,8 @@ get_matrix_dims(GLenum type, GLint *rows, GLint *cols)
 
 /**
  * Determine the number of rows and columns occupied by a uniform
- * according to its datatype.
+ * according to its datatype.  For non-matrix types (such as GL_FLOAT_VEC4),
+ * the number of rows = 1 and cols = number of elements in the vector.
  */
 static void
 get_uniform_rows_cols(const struct gl_program_parameter *p,
@@ -1117,11 +1122,17 @@ get_uniform_rows_cols(const struct gl_program_parameter *p,
    get_matrix_dims(p->DataType, rows, cols);
    if (*rows == 0 && *cols == 0) {
       /* not a matrix type, probably a float or vector */
-      *rows = p->Size / 4 + 1;
-      if (p->Size % 4 == 0)
-         *cols = 4;
-      else
-         *cols = p->Size % 4;
+      if (p->Size <= 4) {
+         *rows = 1;
+         *cols = p->Size;
+      }
+      else {
+         *rows = p->Size / 4 + 1;
+         if (p->Size % 4 == 0)
+            *cols = 4;
+         else
+            *cols = p->Size % 4;
+      }
    }
 }
 
diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index 57dbfc2388..dd7d5be6d8 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.3
+ * Version:  7.2
  *
- * Copyright (C) 2007  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2008  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"),
@@ -42,6 +42,24 @@
 #include "slang_link.h"
 
 
+/** cast wrapper */
+static struct gl_vertex_program *
+vertex_program(struct gl_program *prog)
+{
+   assert(prog->Target == GL_VERTEX_PROGRAM_ARB);
+   return (struct gl_vertex_program *) prog;
+}
+
+
+/** cast wrapper */
+static struct gl_fragment_program *
+fragment_program(struct gl_program *prog)
+{
+   assert(prog->Target == GL_FRAGMENT_PROGRAM_ARB);
+   return (struct gl_fragment_program *) prog;
+}
+
+
 /**
  * Record a linking error.
  */
@@ -215,74 +233,112 @@ link_uniform_vars(struct gl_shader_program *shProg,
  * For example, if the vertex shader declared "attribute vec4 foobar" we'll
  * allocate a generic vertex attribute for "foobar" and plug that value into
  * the vertex program instructions.
+ * But if the user called glBindAttributeLocation(), those bindings will
+ * have priority.
  */
 static GLboolean
 _slang_resolve_attributes(struct gl_shader_program *shProg,
-                          struct gl_program *prog)
+                          const struct gl_program *origProg,
+                          struct gl_program *linkedProg)
 {
+   GLint attribMap[MAX_VERTEX_ATTRIBS];
    GLuint i, j;
    GLbitfield usedAttributes;
 
-   assert(prog->Target == GL_VERTEX_PROGRAM_ARB);
+   assert(origProg != linkedProg);
+   assert(origProg->Target == GL_VERTEX_PROGRAM_ARB);
+   assert(linkedProg->Target == GL_VERTEX_PROGRAM_ARB);
 
    if (!shProg->Attributes)
       shProg->Attributes = _mesa_new_parameter_list();
 
+   if (linkedProg->Attributes) {
+      _mesa_free_parameter_list(linkedProg->Attributes);
+   }
+   linkedProg->Attributes = _mesa_new_parameter_list();
+
+
    /* Build a bitmask indicating which attribute indexes have been
     * explicitly bound by the user with glBindAttributeLocation().
     */
    usedAttributes = 0x0;
    for (i = 0; i < shProg->Attributes->NumParameters; i++) {
       GLint attr = shProg->Attributes->Parameters[i].StateIndexes[0];
-      usedAttributes |= attr;
+      usedAttributes |= (1 << attr);
+   }
+
+   /* initialize the generic attribute map entries to -1 */
+   for (i = 0; i < MAX_VERTEX_ATTRIBS; i++) {
+      attribMap[i] = -1;
    }
 
    /*
     * Scan program for generic attribute references
     */
-   for (i = 0; i < prog->NumInstructions; i++) {
-      struct prog_instruction *inst = prog->Instructions + i;
+   for (i = 0; i < linkedProg->NumInstructions; i++) {
+      struct prog_instruction *inst = linkedProg->Instructions + i;
       for (j = 0; j < 3; j++) {
          if (inst->SrcReg[j].File == PROGRAM_INPUT &&
              inst->SrcReg[j].Index >= VERT_ATTRIB_GENERIC0) {
-            /* this is a generic attrib */
-            const GLint k = inst->SrcReg[j].Index - VERT_ATTRIB_GENERIC0;
-            const char *name = prog->Attributes->Parameters[k].Name;
-            /* See if this attrib name is in the program's attribute list
-             * (i.e. was bound by the user).
+            /*
+             * OK, we've found a generic vertex attribute reference.
              */
-            GLint index = _mesa_lookup_parameter_index(shProg->Attributes,
-                                                          -1, name);
-            GLint attr;
-            if (index >= 0) {
-               /* found, user must have specified a binding */
-               attr = shProg->Attributes->Parameters[index].StateIndexes[0];
-            }
-            else {
-               /* Not found, choose our own attribute number.
-                * Start at 1 since generic attribute 0 always aliases
-                * glVertex/position.
+            const GLint k = inst->SrcReg[j].Index - VERT_ATTRIB_GENERIC0;
+
+            GLint attr = attribMap[k];
+
+            if (attr < 0) {
+               /* Need to figure out attribute mapping now.
+                */
+               const char *name = origProg->Attributes->Parameters[k].Name;
+               const GLint size = origProg->Attributes->Parameters[k].Size;
+               const GLenum type =origProg->Attributes->Parameters[k].DataType;
+               GLint index;
+
+               /* See if there's a user-defined attribute binding for
+                * this name.
                 */
-               GLint size = prog->Attributes->Parameters[k].Size;
-               GLenum datatype = prog->Attributes->Parameters[k].DataType;
-               for (attr = 1; attr < MAX_VERTEX_ATTRIBS; attr++) {
-                  if (((1 << attr) & usedAttributes) == 0)
-                     break;
+               index = _mesa_lookup_parameter_index(shProg->Attributes,
+                                                    -1, name);
+               if (index >= 0) {
+                  /* Found a user-defined binding */
+                  attr = shProg->Attributes->Parameters[index].StateIndexes[0];
                }
-               if (attr == MAX_VERTEX_ATTRIBS) {
-                  /* too many!  XXX record error log */
-                  return GL_FALSE;
+               else {
+                  /* No user-defined binding, choose our own attribute number.
+                   * Start at 1 since generic attribute 0 always aliases
+                   * glVertex/position.
+                   */
+                  for (attr = 1; attr < MAX_VERTEX_ATTRIBS; attr++) {
+                     if (((1 << attr) & usedAttributes) == 0)
+                        break;
+                  }
+                  if (attr == MAX_VERTEX_ATTRIBS) {
+                     link_error(shProg, "Too many vertex attributes");
+                     return GL_FALSE;
+                  }
+
+                  /* mark this attribute as used */
+                  usedAttributes |= (1 << attr);
                }
-               _mesa_add_attribute(shProg->Attributes, name, size, datatype,attr);
 
-	       /* set the attribute as used */
-	       usedAttributes |= 1<<attr;
+               attribMap[k] = attr;
+
+               /* Save the final name->attrib binding so it can be queried
+                * with glGetAttributeLocation().
+                */
+               _mesa_add_attribute(linkedProg->Attributes, name,
+                                   size, type, attr);
             }
 
+            assert(attr >= 0);
+
+            /* update the instruction's src reg */
             inst->SrcReg[j].Index = VERT_ATTRIB_GENERIC0 + attr;
          }
       }
    }
+
    return GL_TRUE;
 }
 
@@ -325,6 +381,7 @@ static void
 _slang_update_inputs_outputs(struct gl_program *prog)
 {
    GLuint i, j;
+   GLuint maxAddrReg = 0;
 
    prog->InputsRead = 0x0;
    prog->OutputsWritten = 0x0;
@@ -335,60 +392,34 @@ _slang_update_inputs_outputs(struct gl_program *prog)
       for (j = 0; j < numSrc; j++) {
          if (inst->SrcReg[j].File == PROGRAM_INPUT) {
             prog->InputsRead |= 1 << inst->SrcReg[j].Index;
+            if (prog->Target == GL_FRAGMENT_PROGRAM_ARB &&
+                inst->SrcReg[j].Index == FRAG_ATTRIB_FOGC) {
+               /* The fragment shader FOGC input is used for fog,
+                * front-facing and sprite/point coord.
+                */
+               struct gl_fragment_program *fp = fragment_program(prog);
+               const GLint swz = GET_SWZ(inst->SrcReg[j].Swizzle, 0);
+               if (swz == SWIZZLE_X)
+                  fp->UsesFogFragCoord = GL_TRUE;
+               else if (swz == SWIZZLE_Y)
+                  fp->UsesFrontFacing = GL_TRUE;
+               else if (swz == SWIZZLE_Z || swz == SWIZZLE_W)
+                  fp->UsesPointCoord = GL_TRUE;
+            }
+         }
+         else if (inst->SrcReg[j].File == PROGRAM_ADDRESS) {
+            maxAddrReg = MAX2(maxAddrReg, inst->SrcReg[j].Index + 1);
          }
       }
       if (inst->DstReg.File == PROGRAM_OUTPUT) {
          prog->OutputsWritten |= 1 << inst->DstReg.Index;
       }
-   }
-}
-
-
-/**
- * Scan a vertex program looking for instances of
- * (PROGRAM_INPUT, VERT_ATTRIB_GENERIC0 + oldAttrib) and replace with
- * (PROGRAM_INPUT, VERT_ATTRIB_GENERIC0 + newAttrib).
- * This is used when the user calls glBindAttribLocation on an already linked
- * shader program.
- */
-void
-_slang_remap_attribute(struct gl_program *prog, GLuint oldAttrib, GLuint newAttrib)
-{
-   GLuint i, j;
-
-   assert(prog->Target == GL_VERTEX_PROGRAM_ARB);
-
-   for (i = 0; i < prog->NumInstructions; i++) {
-      struct prog_instruction *inst = prog->Instructions + i;
-      for (j = 0; j < 3; j++) {
-         if (inst->SrcReg[j].File == PROGRAM_INPUT) {
-            if (inst->SrcReg[j].Index == VERT_ATTRIB_GENERIC0 + oldAttrib) {
-               inst->SrcReg[j].Index = VERT_ATTRIB_GENERIC0 + newAttrib;
-            }
-         }
+      else if (inst->DstReg.File == PROGRAM_ADDRESS) {
+         maxAddrReg = MAX2(maxAddrReg, inst->DstReg.Index + 1);
       }
    }
 
-   _slang_update_inputs_outputs(prog);
-}
-
-
-
-/** cast wrapper */
-static struct gl_vertex_program *
-vertex_program(struct gl_program *prog)
-{
-   assert(prog->Target == GL_VERTEX_PROGRAM_ARB);
-   return (struct gl_vertex_program *) prog;
-}
-
-
-/** cast wrapper */
-static struct gl_fragment_program *
-fragment_program(struct gl_program *prog)
-{
-   assert(prog->Target == GL_FRAGMENT_PROGRAM_ARB);
-   return (struct gl_fragment_program *) prog;
+   prog->NumAddressRegs = maxAddrReg;
 }
 
 
@@ -492,9 +523,8 @@ _slang_link(GLcontext *ctx,
    /*_mesa_print_uniforms(shProg->Uniforms);*/
 
    if (shProg->VertexProgram) {
-      if (!_slang_resolve_attributes(shProg, &shProg->VertexProgram->Base)) {
-         /*goto cleanup;*/
-         _mesa_problem(ctx, "_slang_resolve_attributes() failed");
+      if (!_slang_resolve_attributes(shProg, &vertProg->Base,
+                                     &shProg->VertexProgram->Base)) {
          return;
       }
    }
diff --git a/src/mesa/shader/slang/slang_link.h b/src/mesa/shader/slang/slang_link.h
index 8ef8a6b4b3..2b44d20787 100644
--- a/src/mesa/shader/slang/slang_link.h
+++ b/src/mesa/shader/slang/slang_link.h
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.3
+ * Version:  7.2
  *
- * Copyright (C) 2007  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2008  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"),
@@ -32,10 +32,6 @@ extern void
 _slang_link(GLcontext *ctx, GLhandleARB h,
             struct gl_shader_program *shProg);
 
-extern void
-_slang_remap_attribute(struct gl_program *prog, GLuint oldAttrib,
-                       GLuint newAttrib);
-
 
 #endif
 
diff --git a/src/mesa/state_tracker/st_atom_rasterizer.c b/src/mesa/state_tracker/st_atom_rasterizer.c
index e286dc5116..fc47896c24 100644
--- a/src/mesa/state_tracker/st_atom_rasterizer.c
+++ b/src/mesa/state_tracker/st_atom_rasterizer.c
@@ -254,7 +254,7 @@ static void update_raster_state( struct st_context *st )
    raster->line_stipple_factor = ctx->Line.StippleFactor - 1;
 
    /* _NEW_MULTISAMPLE */
-   if (ctx->Multisample._Enabled)
+   if (ctx->Multisample._Enabled || st->force_msaa)
       raster->multisample = 1;
 
    /* _NEW_SCISSOR */
diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c
index 8406bf247f..00076f61e0 100644
--- a/src/mesa/state_tracker/st_cb_fbo.c
+++ b/src/mesa/state_tracker/st_cb_fbo.c
@@ -170,6 +170,7 @@ st_renderbuffer_alloc_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
                                                   0, 0, 0,
                                                   surface_usage );
 
+   assert(strb->surface->texture);
    assert(strb->surface->buffer);
    assert(strb->surface->format);
    assert(strb->surface->block.size);
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index a3e8fc992d..2e1ad93942 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -455,6 +455,11 @@ st_TexImage(GLcontext * ctx,
       _mesa_align_free(texImage->Data);
    }
 
+   if (width == 0 || height == 0 || depth == 0) {
+      /* stop after freeing old image */
+      return;
+   }
+
    /* If this is the only mipmap level in the texture, could call
     * bmBufferData with NULL data to free the old block and avoid
     * waiting on any outstanding fences.
@@ -1048,7 +1053,8 @@ st_copy_texsubimage(GLcontext *ctx,
    GLboolean use_fallback = GL_TRUE;
    GLboolean matching_base_formats;
 
-   st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
+   /* any rendering in progress must complete before we grab the fb image */
+   st_finish(ctx->st);
 
    /* determine if copying depth or color data */
    if (texBaseFormat == GL_DEPTH_COMPONENT) {
diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
index 08d4db7f7f..cca808d328 100644
--- a/src/mesa/state_tracker/st_context.c
+++ b/src/mesa/state_tracker/st_context.c
@@ -88,6 +88,19 @@ void st_invalidate_state(GLcontext * ctx, GLuint new_state)
 }
 
 
+/**
+ * Check for multisample env var override.
+ */
+int
+st_get_msaa(void)
+{
+   const char *msaa = _mesa_getenv("__GL_FSAA_MODE");
+   if (msaa)
+      return atoi(msaa);
+   return 0;
+}
+
+
 static struct st_context *
 st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
 {
@@ -141,6 +154,8 @@ st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
 
    st->pixel_xfer.cache = _mesa_new_program_cache();
 
+   st->force_msaa = st_get_msaa();
+
    /* GL limits and extensions */
    st_init_limits(st);
    st_init_extensions(st);
@@ -188,8 +203,6 @@ static void st_destroy_context_priv( struct st_context *st )
    st_destroy_drawtex(st);
 #endif
 
-   _vbo_DestroyContext(st->ctx);
-
    for (i = 0; i < Elements(st->state.sampler_texture); i++) {
       pipe_texture_reference(&st->state.sampler_texture[i], NULL);
    }
@@ -223,6 +236,8 @@ void st_destroy_context( struct st_context *st )
 
    _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
 
+   _vbo_DestroyContext(st->ctx);
+
    _mesa_free_context_data(ctx);
 
    st_destroy_context_priv(st);
diff --git a/src/mesa/state_tracker/st_context.h b/src/mesa/state_tracker/st_context.h
index 4314d9af5c..1d1aca3111 100644
--- a/src/mesa/state_tracker/st_context.h
+++ b/src/mesa/state_tracker/st_context.h
@@ -181,6 +181,8 @@ struct st_context
    struct blit_state *blit;
 
    struct cso_context *cso_context;
+
+   int force_msaa;
 };
 
 
@@ -238,4 +240,8 @@ st_fb_orientation(const struct gl_framebuffer *fb)
 }
 
 
+extern int
+st_get_msaa(void);
+
+
 #endif
diff --git a/src/mesa/state_tracker/st_framebuffer.c b/src/mesa/state_tracker/st_framebuffer.c
index 0f4a03fa48..ec8928f200 100644
--- a/src/mesa/state_tracker/st_framebuffer.c
+++ b/src/mesa/state_tracker/st_framebuffer.c
@@ -51,13 +51,12 @@ st_create_framebuffer( const __GLcontextModes *visual,
 {
    struct st_framebuffer *stfb = CALLOC_STRUCT(st_framebuffer);
    if (stfb) {
-      int samples = 0;
-      const char *msaa_override = _mesa_getenv("__GL_FSAA_MODE");
+      int samples = st_get_msaa();
+
+      if (visual->sampleBuffers)
+         samples = visual->samples;
+
       _mesa_initialize_framebuffer(&stfb->Base, visual);
-      if (visual->sampleBuffers) samples = visual->samples;
-      if (msaa_override) {
-         samples = _mesa_atoi(msaa_override);
-      }
 
       {
          /* fake frontbuffer */
diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c b/src/mesa/state_tracker/st_mesa_to_tgsi.c
index 5ec9fddd7f..b9807bb807 100644
--- a/src/mesa/state_tracker/st_mesa_to_tgsi.c
+++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c
@@ -35,10 +35,13 @@
 #include "tgsi/tgsi_parse.h"
 #include "tgsi/tgsi_build.h"
 #include "tgsi/tgsi_util.h"
+#include "tgsi/tgsi_dump.h"
+#include "tgsi/tgsi_sanity.h"
 #include "st_mesa_to_tgsi.h"
 #include "shader/prog_instruction.h"
 #include "shader/prog_parameter.h"
-
+#include "shader/prog_print.h"
+#include "pipe/p_debug.h"
 
 /*
  * Map mesa register file to TGSI register file.
@@ -239,6 +242,15 @@ compile_instruction(
          immediateMapping,
          indirectAccess );
 
+      /**
+       * This not at all the correct solution.
+       * FIXME: Roll this up in the above map functions
+       */
+      if (fullsrc->SrcRegister.File == TGSI_FILE_IMMEDIATE && fullsrc->SrcRegister.Index == ~0) {
+         fullsrc->SrcRegister.File = TGSI_FILE_CONSTANT;
+         fullsrc->SrcRegister.Index = inst->SrcReg[i].Index;
+      }
+
       /* swizzle (ext swizzle also depends on negation) */
       {
          GLuint swz[4];
@@ -980,5 +992,17 @@ tgsi_translate_mesa_program(
          maxTokens - ti );
    }
 
+#if DEBUG
+   if(!tgsi_sanity_check(tokens)) {
+      debug_printf("Due to sanity check failure(s) above the following shader program is invalid:\n");
+      debug_printf("\nOriginal program:\n%s", program->String);
+      debug_printf("\nMesa program:\n");
+      _mesa_print_program(program);
+      debug_printf("\nTGSI program:\n");
+      tgsi_dump(tokens, 0);
+      assert(0);
+   }
+#endif
+
    return ti;
 }
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index 936a6e32ea..b2abf0286e 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -409,7 +409,10 @@ st_translate_fragment_program(struct st_context *st,
             interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
             break;
          case FRAG_ATTRIB_FOGC:
-            stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+            if (stfp->Base.UsesPointCoord)
+               stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+            else
+               stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
             stfp->input_semantic_index[slot] = 0;
             interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
             break;
diff --git a/src/mesa/vbo/vbo_context.c b/src/mesa/vbo/vbo_context.c
index dc7c534251..b452ac8a38 100644
--- a/src/mesa/vbo/vbo_context.c
+++ b/src/mesa/vbo/vbo_context.c
@@ -246,12 +246,14 @@ void _vbo_DestroyContext( GLcontext *ctx )
       ctx->aelt_context = NULL;
    }
 
-   vbo_exec_destroy(ctx);
+   if (vbo_context(ctx)) {
+      vbo_exec_destroy(ctx);
 #if FEATURE_dlist
-   vbo_save_destroy(ctx);
+      vbo_save_destroy(ctx);
 #endif
-   FREE(vbo_context(ctx));
-   ctx->swtnl_im = NULL;
+      FREE(vbo_context(ctx));
+      ctx->swtnl_im = NULL;
+   }
 }
 
 
diff --git a/src/mesa/vbo/vbo_save_api.c b/src/mesa/vbo/vbo_save_api.c
index 88d573f128..f69a33d817 100644
--- a/src/mesa/vbo/vbo_save_api.c
+++ b/src/mesa/vbo/vbo_save_api.c
@@ -1045,6 +1045,32 @@ void vbo_save_NewList( GLcontext *ctx, GLuint list, GLenum mode )
 void vbo_save_EndList( GLcontext *ctx )
 {
    struct vbo_save_context *save = &vbo_context(ctx)->save;
+
+   /* EndList called inside a (saved) Begin/End pair?
+    */
+   if (ctx->Driver.CurrentSavePrimitive != PRIM_OUTSIDE_BEGIN_END) {
+
+      if (save->prim_count > 0) {
+         GLint i = save->prim_count - 1;
+         ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
+         save->prim[i].end = 0;
+         save->prim[i].count = (save->vert_count - 
+                                save->prim[i].start);
+      }
+
+      /* Make sure this vertex list gets replayed by the "loopback"
+       * mechanism:
+       */
+      save->dangling_attr_ref = 1;
+      vbo_save_SaveFlushVertices( ctx );
+
+      /* Swap out this vertex format while outside begin/end.  Any color,
+       * etc. received between here and the next begin will be compiled
+       * as opcodes.
+       */   
+      _mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
+   }
+
    unmap_vertex_store( ctx, save->vertex_store );
 
    assert(save->vertex_size == 0);