libxtrans libXdmcp libxcb mesa xserver git update 13 jan 2012

51 files changed, 882 insertions, 593 deletions

diff --git a/mesalib/src/gallium/auxiliary/util/u_math.h b/mesalib/src/gallium/auxiliary/util/u_math.h
index 404bd21e1..f6196665f 100644
--- a/mesalib/src/gallium/auxiliary/util/u_math.h
+++ b/mesalib/src/gallium/auxiliary/util/u_math.h
@@ -340,6 +340,9 @@ util_is_inf_or_nan(float x)
  * Find first bit set in word.  Least significant bit is 1.
  * Return 0 if no bits set.
  */
+#ifndef FFS_DEFINED
+#define FFS_DEFINED 1
+
 #if defined(_MSC_VER) && _MSC_VER >= 1300 && (_M_IX86 || _M_AMD64 || _M_IA64)
 unsigned char _BitScanForward(unsigned long* Index, unsigned long Mask);
 #pragma intrinsic(_BitScanForward)
@@ -372,6 +375,8 @@ unsigned ffs( unsigned u )
 #define ffs __builtin_ffs
 #endif
 
+#endif /* FFS_DEFINED */
+
 
 /* Destructively loop over all of the bits in a mask as in:
  *
diff --git a/mesalib/src/glsl/glsl_types.cpp b/mesalib/src/glsl/glsl_types.cpp
index 8587da0a3..d4385a644 100644
--- a/mesalib/src/glsl/glsl_types.cpp
+++ b/mesalib/src/glsl/glsl_types.cpp
@@ -127,6 +127,35 @@ glsl_type::contains_sampler() const
    }
 }
 
+gl_texture_index
+glsl_type::sampler_index() const
+{
+   const glsl_type *const t = (this->is_array()) ? this->fields.array : this;
+
+   assert(t->is_sampler());
+
+   switch (t->sampler_dimensionality) {
+   case GLSL_SAMPLER_DIM_1D:
+      return (t->sampler_array) ? TEXTURE_1D_ARRAY_INDEX : TEXTURE_1D_INDEX;
+   case GLSL_SAMPLER_DIM_2D:
+      return (t->sampler_array) ? TEXTURE_2D_ARRAY_INDEX : TEXTURE_2D_INDEX;
+   case GLSL_SAMPLER_DIM_3D:
+      return TEXTURE_3D_INDEX;
+   case GLSL_SAMPLER_DIM_CUBE:
+      return TEXTURE_CUBE_INDEX;
+   case GLSL_SAMPLER_DIM_RECT:
+      return TEXTURE_RECT_INDEX;
+   case GLSL_SAMPLER_DIM_BUF:
+      assert(!"FINISHME: Implement ARB_texture_buffer_object");
+      break;
+   case GLSL_SAMPLER_DIM_EXTERNAL:
+      return TEXTURE_EXTERNAL_INDEX;
+   default:
+      assert(!"Should not get here.");
+      break;
+   }
+}
+
 void
 glsl_type::generate_100ES_types(glsl_symbol_table *symtab)
 {
diff --git a/mesalib/src/glsl/glsl_types.h b/mesalib/src/glsl/glsl_types.h
index 4ac90118b..2997c9311 100644
--- a/mesalib/src/glsl/glsl_types.h
+++ b/mesalib/src/glsl/glsl_types.h
@@ -28,6 +28,7 @@
 
 #include <string.h>
 #include <assert.h>
+#include "main/mtypes.h" /* for gl_texture_index, C++'s enum rules are broken */
 
 #ifdef __cplusplus
 extern "C" {
@@ -354,6 +355,11 @@ struct glsl_type {
    bool contains_sampler() const;
 
    /**
+    * Get the Mesa texture target index for a sampler type.
+    */
+   gl_texture_index sampler_index() const;
+
+   /**
     * Query whether or not a type is an array
     */
    bool is_array() const
diff --git a/mesalib/src/glsl/link_uniforms.cpp b/mesalib/src/glsl/link_uniforms.cpp
index b331db705..02f57d911 100644
--- a/mesalib/src/glsl/link_uniforms.cpp
+++ b/mesalib/src/glsl/link_uniforms.cpp
@@ -209,7 +209,13 @@ public:
 			      union gl_constant_value *values)
       : map(map), uniforms(uniforms), next_sampler(0), values(values)
    {
-      /* empty */
+      memset(this->targets, 0, sizeof(this->targets));
+   }
+
+   void start_shader()
+   {
+      this->shader_samplers_used = 0;
+      this->shader_shadow_samplers = 0;
    }
 
 private:
@@ -230,8 +236,25 @@ private:
        * example, we may be processing the uniform in the fragment shader, but
        * the uniform was already processed in the vertex shader.
        */
-      if (this->uniforms[id].storage != NULL)
+      if (this->uniforms[id].storage != NULL) {
+	 /* If the uniform already has storage set from another shader stage,
+	  * mark the samplers used for this shader stage.
+	  */
+	 if (type->contains_sampler()) {
+	    const unsigned count = MAX2(1, this->uniforms[id].array_elements);
+	    const unsigned shadow = (type->is_array())
+	       ? type->fields.array->sampler_shadow : type->sampler_shadow;
+
+	    for (unsigned i = 0; i < count; i++) {
+	       const unsigned s = this->uniforms[id].sampler + i;
+
+	       this->shader_samplers_used |= 1U << s;
+	       this->shader_shadow_samplers |= shadow << s;
+	    }
+	 }
+
 	 return;
+      }
 
       const glsl_type *base_type;
       if (type->is_array()) {
@@ -249,6 +272,17 @@ private:
 	  * array elements for arrays.
 	  */
 	 this->next_sampler += MAX2(1, this->uniforms[id].array_elements);
+
+	 const gl_texture_index target = base_type->sampler_index();
+	 const unsigned shadow = base_type->sampler_shadow;
+	 for (unsigned i = this->uniforms[id].sampler
+		 ; i < this->next_sampler
+		 ; i++) {
+	    this->targets[i] = target;
+	    this->shader_samplers_used |= 1U << i;
+	    this->shader_shadow_samplers |= shadow << i;
+	 }
+
       } else {
 	 this->uniforms[id].sampler = ~0;
       }
@@ -270,6 +304,18 @@ private:
 
 public:
    union gl_constant_value *values;
+
+   gl_texture_index targets[MAX_SAMPLERS];
+
+   /**
+    * Mask of samplers used by the current shader stage.
+    */
+   unsigned shader_samplers_used;
+
+   /**
+    * Mask of samplers used by the current shader stage for shadows.
+    */
+   unsigned shader_shadow_samplers;
 };
 
 void
@@ -346,6 +392,10 @@ link_assign_uniform_locations(struct gl_shader_program *prog)
       if (prog->_LinkedShaders[i] == NULL)
 	 continue;
 
+      /* Reset various per-shader target counts.
+       */
+      parcel.start_shader();
+
       foreach_list(node, prog->_LinkedShaders[i]->ir) {
 	 ir_variable *const var = ((ir_instruction *) node)->as_variable();
 
@@ -359,8 +409,14 @@ link_assign_uniform_locations(struct gl_shader_program *prog)
 
 	 parcel.process(var);
       }
+
+      prog->_LinkedShaders[i]->active_samplers = parcel.shader_samplers_used;
+      prog->_LinkedShaders[i]->shadow_samplers = parcel.shader_shadow_samplers;
    }
 
+   assert(sizeof(prog->SamplerTargets) == sizeof(parcel.targets));
+   memcpy(prog->SamplerTargets, parcel.targets, sizeof(prog->SamplerTargets));
+
 #ifndef NDEBUG
    for (unsigned i = 0; i < num_user_uniforms; i++) {
       assert(uniforms[i].storage != NULL);
diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
index e8472d446..0d85aeee6 100644
--- a/mesalib/src/glsl/linker.cpp
+++ b/mesalib/src/glsl/linker.cpp
@@ -246,7 +246,8 @@ count_attribute_slots(const glsl_type *t)
 /**
  * Verify that a vertex shader executable meets all semantic requirements.
  *
- * Also sets prog->Vert.UsesClipDistance as a side effect.
+ * Also sets prog->Vert.UsesClipDistance and prog->Vert.ClipDistanceArraySize
+ * as a side effect.
  *
  * \param shader  Vertex shader executable to be verified
  */
@@ -264,6 +265,8 @@ validate_vertex_shader_executable(struct gl_shader_program *prog,
       return false;
    }
 
+   prog->Vert.ClipDistanceArraySize = 0;
+
    if (prog->Version >= 130) {
       /* From section 7.1 (Vertex Shader Special Variables) of the
        * GLSL 1.30 spec:
@@ -282,6 +285,10 @@ validate_vertex_shader_executable(struct gl_shader_program *prog,
          return false;
       }
       prog->Vert.UsesClipDistance = clip_distance.variable_found();
+      ir_variable *clip_distance_var =
+         shader->symbols->get_variable("gl_ClipDistance");
+      if (clip_distance_var)
+         prog->Vert.ClipDistanceArraySize = clip_distance_var->type->length;
    }
 
    return true;
@@ -1381,7 +1388,7 @@ public:
    static bool is_same(const tfeedback_decl &x, const tfeedback_decl &y);
    bool assign_location(struct gl_context *ctx, struct gl_shader_program *prog,
                         ir_variable *output_var);
-   bool store(struct gl_shader_program *prog,
+   bool store(struct gl_context *ctx, struct gl_shader_program *prog,
               struct gl_transform_feedback_info *info, unsigned buffer,
 	      unsigned varying) const;
 
@@ -1399,7 +1406,10 @@ public:
     */
    bool matches_var(ir_variable *var) const
    {
-      return strcmp(var->name, this->var_name) == 0;
+      if (this->is_clip_distance_mesa)
+         return strcmp(var->name, "gl_ClipDistanceMESA") == 0;
+      else
+         return strcmp(var->name, this->var_name) == 0;
    }
 
    /**
@@ -1408,7 +1418,10 @@ public:
     */
    unsigned num_components() const
    {
-      return this->vector_elements * this->matrix_columns;
+      if (this->is_clip_distance_mesa)
+         return this->size;
+      else
+         return this->vector_elements * this->matrix_columns * this->size;
    }
 
 private:
@@ -1434,11 +1447,10 @@ private:
    unsigned array_subscript;
 
    /**
-    * Which component to extract from the vertex shader output location that
-    * the linker assigned to this variable.  -1 if all components should be
-    * extracted.
+    * True if the variable is gl_ClipDistance and the driver lowers
+    * gl_ClipDistance to gl_ClipDistanceMESA.
     */
-   int single_component;
+   bool is_clip_distance_mesa;
 
    /**
     * The vertex shader output location that the linker assigned for this
@@ -1484,7 +1496,7 @@ tfeedback_decl::init(struct gl_context *ctx, struct gl_shader_program *prog,
 
    this->location = -1;
    this->orig_name = input;
-   this->single_component = -1;
+   this->is_clip_distance_mesa = false;
 
    const char *bracket = strrchr(input, '[');
 
@@ -1500,17 +1512,13 @@ tfeedback_decl::init(struct gl_context *ctx, struct gl_shader_program *prog,
       this->is_subscripted = false;
    }
 
-   /* For drivers that lower gl_ClipDistance to gl_ClipDistanceMESA, we need
-    * to convert a request for gl_ClipDistance[n] into a request for a
-    * component of gl_ClipDistanceMESA[n/4].
+   /* For drivers that lower gl_ClipDistance to gl_ClipDistanceMESA, this
+    * class must behave specially to account for the fact that gl_ClipDistance
+    * is converted from a float[8] to a vec4[2].
     */
    if (ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].LowerClipDistance &&
        strcmp(this->var_name, "gl_ClipDistance") == 0) {
-      this->var_name = "gl_ClipDistanceMESA";
-      if (this->is_subscripted) {
-         this->single_component = this->array_subscript % 4;
-         this->array_subscript /= 4;
-      }
+      this->is_clip_distance_mesa = true;
    }
 
    return true;
@@ -1530,8 +1538,6 @@ tfeedback_decl::is_same(const tfeedback_decl &x, const tfeedback_decl &y)
       return false;
    if (x.is_subscripted && x.array_subscript != y.array_subscript)
       return false;
-   if (x.single_component != y.single_component)
-      return false;
    return true;
 }
 
@@ -1552,27 +1558,36 @@ tfeedback_decl::assign_location(struct gl_context *ctx,
       /* Array variable */
       const unsigned matrix_cols =
          output_var->type->fields.array->matrix_columns;
+      unsigned actual_array_size = this->is_clip_distance_mesa ?
+         prog->Vert.ClipDistanceArraySize : output_var->type->array_size();
 
       if (this->is_subscripted) {
          /* Check array bounds. */
-         if (this->array_subscript >=
-             (unsigned) output_var->type->array_size()) {
+         if (this->array_subscript >= actual_array_size) {
             linker_error(prog, "Transform feedback varying %s has index "
-                         "%i, but the array size is %i.",
+                         "%i, but the array size is %u.",
                          this->orig_name, this->array_subscript,
-                         output_var->type->array_size());
+                         actual_array_size);
             return false;
          }
-         this->location =
-            output_var->location + this->array_subscript * matrix_cols;
+         if (this->is_clip_distance_mesa) {
+            this->location =
+               output_var->location + this->array_subscript / 4;
+         } else {
+            this->location =
+               output_var->location + this->array_subscript * matrix_cols;
+         }
          this->size = 1;
       } else {
          this->location = output_var->location;
-         this->size = (unsigned) output_var->type->array_size();
+         this->size = actual_array_size;
       }
       this->vector_elements = output_var->type->fields.array->vector_elements;
       this->matrix_columns = matrix_cols;
-      this->type = output_var->type->fields.array->gl_type;
+      if (this->is_clip_distance_mesa)
+         this->type = GL_FLOAT;
+      else
+         this->type = output_var->type->fields.array->gl_type;
    } else {
       /* Regular variable (scalar, vector, or matrix) */
       if (this->is_subscripted) {
@@ -1587,6 +1602,7 @@ tfeedback_decl::assign_location(struct gl_context *ctx,
       this->matrix_columns = output_var->type->matrix_columns;
       this->type = output_var->type->gl_type;
    }
+
    /* From GL_EXT_transform_feedback:
     *   A program will fail to link if:
     *
@@ -1615,7 +1631,7 @@ tfeedback_decl::assign_location(struct gl_context *ctx,
  * is returned.
  */
 bool
-tfeedback_decl::store(struct gl_shader_program *prog,
+tfeedback_decl::store(struct gl_context *ctx, struct gl_shader_program *prog,
                       struct gl_transform_feedback_info *info,
                       unsigned buffer, unsigned varying) const
 {
@@ -1631,21 +1647,63 @@ tfeedback_decl::store(struct gl_shader_program *prog,
                    this->orig_name);
       return false;
    }
-   for (unsigned index = 0; index < this->size; ++index) {
+
+   /* From GL_EXT_transform_feedback:
+    *   A program will fail to link if:
+    *
+    *     * the total number of components to capture is greater than
+    *       the constant MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT
+    *       and the buffer mode is INTERLEAVED_ATTRIBS_EXT.
+    */
+   if (prog->TransformFeedback.BufferMode == GL_INTERLEAVED_ATTRIBS &&
+       info->BufferStride[buffer] + this->num_components() >
+       ctx->Const.MaxTransformFeedbackInterleavedComponents) {
+      linker_error(prog, "The MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS "
+                   "limit has been exceeded.");
+      return false;
+   }
+
+   /* Verify that the checks on MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS
+    * and MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS are sufficient to prevent
+    * overflow of info->Outputs[].  In worst case we generate one entry in
+    * Outputs[] per component so a conservative check is to verify that the
+    * size of the array is greater than or equal to both
+    * MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS and
+    * MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS.
+    */
+   assert(Elements(info->Outputs) >=
+          ctx->Const.MaxTransformFeedbackInterleavedComponents);
+   assert(Elements(info->Outputs) >=
+          ctx->Const.MaxTransformFeedbackSeparateComponents);
+
+   unsigned translated_size = this->size;
+   if (this->is_clip_distance_mesa)
+      translated_size = (translated_size + 3) / 4;
+   unsigned components_so_far = 0;
+   for (unsigned index = 0; index < translated_size; ++index) {
       for (unsigned v = 0; v < this->matrix_columns; ++v) {
-         unsigned num_components =
-            this->single_component >= 0 ? 1 : this->vector_elements;
+         unsigned num_components = this->vector_elements;
+         info->Outputs[info->NumOutputs].ComponentOffset = 0;
+         if (this->is_clip_distance_mesa) {
+            if (this->is_subscripted) {
+               num_components = 1;
+               info->Outputs[info->NumOutputs].ComponentOffset =
+                  this->array_subscript % 4;
+            } else {
+               num_components = MIN2(4, this->size - components_so_far);
+            }
+         }
          info->Outputs[info->NumOutputs].OutputRegister =
             this->location + v + index * this->matrix_columns;
          info->Outputs[info->NumOutputs].NumComponents = num_components;
          info->Outputs[info->NumOutputs].OutputBuffer = buffer;
          info->Outputs[info->NumOutputs].DstOffset = info->BufferStride[buffer];
-         info->Outputs[info->NumOutputs].ComponentOffset =
-            this->single_component >= 0 ? this->single_component : 0;
          ++info->NumOutputs;
          info->BufferStride[buffer] += num_components;
+         components_so_far += num_components;
       }
    }
+   assert(components_so_far == this->num_components());
 
    info->Varyings[varying].Name = ralloc_strdup(prog, this->orig_name);
    info->Varyings[varying].Type = this->type;
@@ -1914,7 +1972,6 @@ store_tfeedback_info(struct gl_context *ctx, struct gl_shader_program *prog,
                      unsigned num_tfeedback_decls,
                      tfeedback_decl *tfeedback_decls)
 {
-   unsigned total_tfeedback_components = 0;
    bool separate_attribs_mode =
       prog->TransformFeedback.BufferMode == GL_SEPARATE_ATTRIBS;
 
@@ -1933,25 +1990,9 @@ store_tfeedback_info(struct gl_context *ctx, struct gl_shader_program *prog,
 
    for (unsigned i = 0; i < num_tfeedback_decls; ++i) {
       unsigned buffer = separate_attribs_mode ? i : 0;
-      if (!tfeedback_decls[i].store(prog, &prog->LinkedTransformFeedback,
+      if (!tfeedback_decls[i].store(ctx, prog, &prog->LinkedTransformFeedback,
                                     buffer, i))
          return false;
-      total_tfeedback_components += tfeedback_decls[i].num_components();
-   }
-
-   /* From GL_EXT_transform_feedback:
-    *   A program will fail to link if:
-    *
-    *     * the total number of components to capture is greater than
-    *       the constant MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT
-    *       and the buffer mode is INTERLEAVED_ATTRIBS_EXT.
-    */
-   if (prog->TransformFeedback.BufferMode == GL_INTERLEAVED_ATTRIBS &&
-       total_tfeedback_components >
-       ctx->Const.MaxTransformFeedbackInterleavedComponents) {
-      linker_error(prog, "The MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS "
-                   "limit has been exceeded.");
-      return false;
    }
 
    return true;
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c
index ad289aa70..dca3613a6 100644
--- a/mesalib/src/mesa/drivers/common/meta.c
+++ b/mesalib/src/mesa/drivers/common/meta.c
@@ -2920,8 +2920,8 @@ _mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
 
    /* setup texcoords (XXX what about border?) */
    setup_texture_coords(faceTarget,
-                        0.0f, 0.0f, /* width, height never used here */
                         slice,
+                        0, 0, /* width, height never used here */
                         verts[0].tex,
                         verts[1].tex,
                         verts[2].tex,
@@ -3071,6 +3071,8 @@ get_temp_image_type(struct gl_context *ctx, GLenum baseFormat)
    switch (baseFormat) {
    case GL_RGBA:
    case GL_RGB:
+   case GL_RG:
+   case GL_RED:
    case GL_ALPHA:
    case GL_LUMINANCE:
    case GL_LUMINANCE_ALPHA:
@@ -3086,7 +3088,8 @@ get_temp_image_type(struct gl_context *ctx, GLenum baseFormat)
    case GL_DEPTH_STENCIL:
       return GL_UNSIGNED_INT_24_8;
    default:
-      _mesa_problem(ctx, "Unexpected format in get_temp_image_type()");
+      _mesa_problem(ctx, "Unexpected format %d in get_temp_image_type()",
+		    baseFormat);
       return 0;
    }
 }
diff --git a/mesalib/src/mesa/main/api_validate.c b/mesalib/src/mesa/main/api_validate.c
index 945f12752..b6871d0db 100644
--- a/mesalib/src/mesa/main/api_validate.c
+++ b/mesalib/src/mesa/main/api_validate.c
@@ -184,7 +184,7 @@ check_index_bounds(struct gl_context *ctx, GLsizei count, GLenum type,
    ib.ptr = indices;
    ib.obj = ctx->Array.ArrayObj->ElementArrayBufferObj;
 
-   vbo_get_minmax_index(ctx, &prim, &ib, &min, &max);
+   vbo_get_minmax_indices(ctx, &prim, &ib, &min, &max, 1);
 
    if ((int)(min + basevertex) < 0 ||
        max + basevertex > ctx->Array.ArrayObj->_MaxElement) {
diff --git a/mesalib/src/mesa/main/arrayobj.c b/mesalib/src/mesa/main/arrayobj.c
index 4b3e07b85..29bfed8f5 100644
--- a/mesalib/src/mesa/main/arrayobj.c
+++ b/mesalib/src/mesa/main/arrayobj.c
@@ -303,7 +303,7 @@ _mesa_update_array_object_max_element(struct gl_context *ctx,
    GLuint min = ~0u;
 
    while (enabled) {
-      GLint attrib = _mesa_ffsll(enabled) - 1;
+      GLint attrib = ffsll(enabled) - 1;
       enabled &= ~BITFIELD64_BIT(attrib);
       min = update_min(min, &arrayObj->VertexAttrib[attrib]);
    }
diff --git a/mesalib/src/mesa/main/bitset.h b/mesalib/src/mesa/main/bitset.h
index c27b4c474..28b3c127e 100644
--- a/mesalib/src/mesa/main/bitset.h
+++ b/mesalib/src/mesa/main/bitset.h
@@ -88,7 +88,7 @@ __bitset_ffs(const BITSET_WORD *x, int n)
 
    for (i = 0; i < n; i++) {
       if (x[i])
-	 return _mesa_ffs(x[i]) + BITSET_WORDBITS * i;
+	 return ffs(x[i]) + BITSET_WORDBITS * i;
    }
 
    return 0;
diff --git a/mesalib/src/mesa/main/buffers.c b/mesalib/src/mesa/main/buffers.c
index adea0f5f7..216b6ee87 100644
--- a/mesalib/src/mesa/main/buffers.c
+++ b/mesalib/src/mesa/main/buffers.c
@@ -35,6 +35,7 @@
 #include "colormac.h"
 #include "context.h"
 #include "enums.h"
+#include "fbobject.h"
 #include "mtypes.h"
 
 
@@ -51,11 +52,12 @@
  * \return  bitmask of BUFFER_BIT_* flags
  */
 static GLbitfield
-supported_buffer_bitmask(const struct gl_context *ctx, const struct gl_framebuffer *fb)
+supported_buffer_bitmask(const struct gl_context *ctx,
+                         const struct gl_framebuffer *fb)
 {
    GLbitfield mask = 0x0;
 
-   if (fb->Name > 0) {
+   if (_mesa_is_user_fbo(fb)) {
       /* A user-created renderbuffer */
       GLuint i;
       ASSERT(ctx->Extensions.EXT_framebuffer_object);
@@ -242,7 +244,8 @@ _mesa_DrawBuffer(GLenum buffer)
       destMask = draw_buffer_enum_to_bitmask(buffer);
       if (destMask == BAD_MASK) {
          /* totally bogus buffer */
-         _mesa_error(ctx, GL_INVALID_ENUM, "glDrawBuffer(buffer=0x%x)", buffer);
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glDrawBuffer(buffer=0x%x)", buffer);
          return;
       }
       destMask &= supportedMask;
@@ -340,6 +343,7 @@ _mesa_DrawBuffersARB(GLsizei n, const GLenum *buffers)
       ctx->Driver.DrawBuffer(ctx, n > 0 ? buffers[0] : GL_NONE);
 }
 
+
 /**
  * Performs necessary state updates when _mesa_drawbuffers makes an
  * actual change.
@@ -354,13 +358,14 @@ updated_drawbuffers(struct gl_context *ctx)
       struct gl_framebuffer *fb = ctx->DrawBuffer;
 
       /* Flag the FBO as requiring validation. */
-      if (fb->Name != 0) {
+      if (_mesa_is_user_fbo(fb)) {
 	 fb->_Status = 0;
       }
    }
 #endif
 }
 
+
 /**
  * Helper function to set the GL_DRAW_BUFFER state in the context and
  * current FBO.  Called via glDrawBuffer(), glDrawBuffersARB()
@@ -402,7 +407,7 @@ _mesa_drawbuffers(struct gl_context *ctx, GLuint n, const GLenum *buffers,
    if (n == 1) {
       GLuint count = 0, destMask0 = destMask[0];
       while (destMask0) {
-         GLint bufIndex = _mesa_ffs(destMask0) - 1;
+         GLint bufIndex = ffs(destMask0) - 1;
          if (fb->_ColorDrawBufferIndexes[count] != bufIndex) {
             updated_drawbuffers(ctx);
             fb->_ColorDrawBufferIndexes[count] = bufIndex;
@@ -417,7 +422,7 @@ _mesa_drawbuffers(struct gl_context *ctx, GLuint n, const GLenum *buffers,
       GLuint count = 0;
       for (buf = 0; buf < n; buf++ ) {
          if (destMask[buf]) {
-            GLint bufIndex = _mesa_ffs(destMask[buf]) - 1;
+            GLint bufIndex = ffs(destMask[buf]) - 1;
             /* only one bit should be set in the destMask[buf] field */
             ASSERT(_mesa_bitcount(destMask[buf]) == 1);
             if (fb->_ColorDrawBufferIndexes[buf] != bufIndex) {
@@ -448,7 +453,7 @@ _mesa_drawbuffers(struct gl_context *ctx, GLuint n, const GLenum *buffers,
       fb->ColorDrawBuffer[buf] = GL_NONE;
    }
 
-   if (fb->Name == 0) {
+   if (_mesa_is_winsys_fbo(fb)) {
       /* also set context drawbuffer state */
       for (buf = 0; buf < ctx->Const.MaxDrawBuffers; buf++) {
          if (ctx->Color.DrawBuffer[buf] != fb->ColorDrawBuffer[buf]) {
@@ -472,7 +477,7 @@ _mesa_update_draw_buffers(struct gl_context *ctx)
    GLuint i;
 
    /* should be a window system FBO */
-   assert(ctx->DrawBuffer->Name == 0);
+   assert(_mesa_is_winsys_fbo(ctx->DrawBuffer));
 
    for (i = 0; i < ctx->Const.MaxDrawBuffers; i++)
       buffers[i] = ctx->Color.DrawBuffer[i];
@@ -493,7 +498,7 @@ _mesa_readbuffer(struct gl_context *ctx, GLenum buffer, GLint bufferIndex)
 {
    struct gl_framebuffer *fb = ctx->ReadBuffer;
 
-   if (fb->Name == 0) {
+   if (_mesa_is_winsys_fbo(fb)) {
       /* Only update the per-context READ_BUFFER state if we're bound to
        * a window-system framebuffer.
        */
@@ -529,7 +534,7 @@ _mesa_ReadBuffer(GLenum buffer)
    if (MESA_VERBOSE & VERBOSE_API)
       _mesa_debug(ctx, "glReadBuffer %s\n", _mesa_lookup_enum_by_nr(buffer));
 
-   if (fb->Name > 0 && buffer == GL_NONE) {
+   if (_mesa_is_user_fbo(fb) && buffer == GL_NONE) {
       /* This is legal for user-created framebuffer objects */
       srcBuffer = -1;
    }
diff --git a/mesalib/src/mesa/main/clear.c b/mesalib/src/mesa/main/clear.c
index bd5c01224..e4df120d6 100644
--- a/mesalib/src/mesa/main/clear.c
+++ b/mesalib/src/mesa/main/clear.c
@@ -338,7 +338,7 @@ _mesa_ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint *value)
                      drawbuffer);
          return;
       }
-      else if (!ctx->RasterDiscard) {
+      else if (ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer && !ctx->RasterDiscard) {
          /* Save current stencil clear value, set to 'value', do the
           * stencil clear and restore the clear value.
           * XXX in the future we may have a new ctx->Driver.ClearBuffer()
@@ -513,7 +513,7 @@ _mesa_ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat *value)
                      drawbuffer);
          return;
       }
-      else if (!ctx->RasterDiscard) {
+      else if (ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer && !ctx->RasterDiscard) {
          /* Save current depth clear value, set to 'value', do the
           * depth clear and restore the clear value.
           * XXX in the future we may have a new ctx->Driver.ClearBuffer()
@@ -592,6 +592,8 @@ _mesa_ClearBufferfi(GLenum buffer, GLint drawbuffer,
                     GLfloat depth, GLint stencil)
 {
    GET_CURRENT_CONTEXT(ctx);
+   GLbitfield mask = 0;
+
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
    FLUSH_CURRENT(ctx, 0);
@@ -622,7 +624,12 @@ _mesa_ClearBufferfi(GLenum buffer, GLint drawbuffer,
       _mesa_update_state( ctx );
    }
 
-   {
+   if (ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer)
+      mask |= BUFFER_BIT_DEPTH;
+   if (ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer)
+      mask |= BUFFER_BIT_STENCIL;
+
+   if (mask) {
       /* save current clear values */
       const GLclampd clearDepthSave = ctx->Depth.Clear;
       const GLuint clearStencilSave = ctx->Stencil.Clear;
@@ -636,7 +643,7 @@ _mesa_ClearBufferfi(GLenum buffer, GLint drawbuffer,
          ctx->Driver.ClearStencil(ctx, stencil);
 
       /* clear buffers */
-      ctx->Driver.Clear(ctx, BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
+      ctx->Driver.Clear(ctx, mask);
 
       /* restore */
       ctx->Depth.Clear = clearDepthSave;
diff --git a/mesalib/src/mesa/main/drawpix.c b/mesalib/src/mesa/main/drawpix.c
index 9f5b0b36e..01983d945 100644
--- a/mesalib/src/mesa/main/drawpix.c
+++ b/mesalib/src/mesa/main/drawpix.c
@@ -203,6 +203,12 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
       goto end;
    }
 
+   if (ctx->ReadBuffer->Name != 0 && ctx->ReadBuffer->Visual.samples > 0) {
+      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION,
+		  "glCopyPixels(multisample FBO)");
+      goto end;
+   }
+
    if (!_mesa_source_buffer_exists(ctx, type) ||
        !_mesa_dest_buffer_exists(ctx, type)) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
diff --git a/mesalib/src/mesa/main/fbobject.c b/mesalib/src/mesa/main/fbobject.c
index aefcaf350..052495907 100644
--- a/mesalib/src/mesa/main/fbobject.c
+++ b/mesalib/src/mesa/main/fbobject.c
@@ -79,26 +79,6 @@ static struct gl_renderbuffer DummyRenderbuffer;
 static struct gl_framebuffer IncompleteFramebuffer;
 
 
-/**
- * Is the given FBO a user-created FBO?
- */
-static inline GLboolean
-is_user_fbo(const struct gl_framebuffer *fb)
-{
-   return fb->Name != 0;
-}
-
-
-/**
- * Is the given FBO a window system FBO (like an X window)?
- */
-static inline GLboolean
-is_winsys_fbo(const struct gl_framebuffer *fb)
-{
-   return fb->Name == 0;
-}
-
-
 static void
 delete_dummy_renderbuffer(struct gl_renderbuffer *rb)
 {
@@ -214,7 +194,7 @@ _mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
 {
    GLuint i;
 
-   assert(is_user_fbo(fb));
+   assert(_mesa_is_user_fbo(fb));
 
    switch (attachment) {
    case GL_COLOR_ATTACHMENT0_EXT:
@@ -265,7 +245,7 @@ static struct gl_renderbuffer_attachment *
 _mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
                          GLenum attachment)
 {
-   assert(is_winsys_fbo(fb));
+   assert(_mesa_is_winsys_fbo(fb));
 
    switch (attachment) {
    case GL_FRONT_LEFT:
@@ -711,7 +691,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    GLint i;
    GLuint j;
 
-   assert(is_user_fbo(fb));
+   assert(_mesa_is_user_fbo(fb));
 
    numImages = 0;
    fb->Width = 0;
@@ -1009,10 +989,10 @@ _mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
                _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
             }
 
-            if (is_user_fbo(ctx->DrawBuffer)) {
+            if (_mesa_is_user_fbo(ctx->DrawBuffer)) {
                detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
             }
-            if (is_user_fbo(ctx->ReadBuffer)
+            if (_mesa_is_user_fbo(ctx->ReadBuffer)
                 && ctx->ReadBuffer != ctx->DrawBuffer) {
                detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
             }
@@ -1318,7 +1298,7 @@ invalidate_rb(GLuint key, void *data, void *userData)
    struct gl_renderbuffer *rb = (struct gl_renderbuffer *) userData;
 
    /* If this is a user-created FBO */
-   if (is_user_fbo(fb)) {
+   if (_mesa_is_user_fbo(fb)) {
       GLuint i;
       for (i = 0; i < BUFFER_COUNT; i++) {
          struct gl_renderbuffer_attachment *att = fb->Attachment + i;
@@ -1395,7 +1375,8 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
 
    if (rb->InternalFormat == internalFormat &&
        rb->Width == (GLuint) width &&
-       rb->Height == (GLuint) height) {
+       rb->Height == (GLuint) height &&
+       rb->NumSamples == samples) {
       /* no change in allocation needed */
       return;
    }
@@ -1609,7 +1590,7 @@ check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
    GLuint i;
    ASSERT(ctx->Driver.RenderTexture);
 
-   if (is_winsys_fbo(fb))
+   if (_mesa_is_winsys_fbo(fb))
       return; /* can't render to texture with winsys framebuffers */
 
    for (i = 0; i < BUFFER_COUNT; i++) {
@@ -1629,7 +1610,7 @@ check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
 static void
 check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
 {
-   if (is_winsys_fbo(fb))
+   if (_mesa_is_winsys_fbo(fb))
       return; /* can't render to texture with winsys framebuffers */
 
    if (ctx->Driver.FinishRenderTexture) {
@@ -1882,7 +1863,7 @@ _mesa_CheckFramebufferStatusEXT(GLenum target)
       return 0;
    }
 
-   if (is_winsys_fbo(buffer)) {
+   if (_mesa_is_winsys_fbo(buffer)) {
       /* The window system / default framebuffer is always complete */
       return GL_FRAMEBUFFER_COMPLETE_EXT;
    }
@@ -1944,7 +1925,7 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
    }
 
    /* check framebuffer binding */
-   if (is_winsys_fbo(fb)) {
+   if (_mesa_is_winsys_fbo(fb)) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
                   "glFramebufferTexture%sEXT", caller);
       return;
@@ -2204,7 +2185,7 @@ _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
       return;
    }
 
-   if (is_winsys_fbo(fb)) {
+   if (_mesa_is_winsys_fbo(fb)) {
       /* Can't attach new renderbuffers to a window system framebuffer */
       _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
       return;
@@ -2285,7 +2266,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
       return;
    }
 
-   if (is_winsys_fbo(buffer)) {
+   if (_mesa_is_winsys_fbo(buffer)) {
       /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
        * says:
        *
@@ -2332,7 +2313,8 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
 
    switch (pname) {
    case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
-      *params = is_winsys_fbo(buffer) ? GL_FRAMEBUFFER_DEFAULT : att->Type;
+      *params = _mesa_is_winsys_fbo(buffer)
+         ? GL_FRAMEBUFFER_DEFAULT : att->Type;
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
       if (att->Type == GL_RENDERBUFFER_EXT) {
diff --git a/mesalib/src/mesa/main/fbobject.h b/mesalib/src/mesa/main/fbobject.h
index 0a70a436d..3aee842f5 100644
--- a/mesalib/src/mesa/main/fbobject.h
+++ b/mesalib/src/mesa/main/fbobject.h
@@ -32,6 +32,28 @@
 struct gl_context;
 struct gl_texture_object;
 
+
+/**
+ * Is the given FBO a user-created FBO?
+ */
+static inline GLboolean
+_mesa_is_user_fbo(const struct gl_framebuffer *fb)
+{
+   return fb->Name != 0;
+}
+
+
+/**
+ * Is the given FBO a window system FBO (like an X window)?
+ */
+static inline GLboolean
+_mesa_is_winsys_fbo(const struct gl_framebuffer *fb)
+{
+   return fb->Name == 0;
+}
+
+
+
 extern void
 _mesa_init_fbobjects(struct gl_context *ctx);
 
diff --git a/mesalib/src/mesa/main/ff_fragment_shader.cpp b/mesalib/src/mesa/main/ff_fragment_shader.cpp
index 3e736fa15..afc17dc49 100644
--- a/mesalib/src/mesa/main/ff_fragment_shader.cpp
+++ b/mesalib/src/mesa/main/ff_fragment_shader.cpp
@@ -42,6 +42,7 @@ extern "C" {
 #include "program/programopt.h"
 #include "texenvprogram.h"
 }
+#include "main/uniforms.h"
 #include "../glsl/glsl_types.h"
 #include "../glsl/ir.h"
 #include "../glsl/glsl_symbol_table.h"
@@ -294,7 +295,7 @@ need_saturate( GLuint mode )
 static GLuint translate_tex_src_bit( GLbitfield bit )
 {
    ASSERT(bit);
-   return _mesa_ffs(bit) - 1;
+   return ffs(bit) - 1;
 }
 
 
@@ -527,7 +528,7 @@ struct texenv_fragment_program {
     */
 
    /* Texcoord override from bumpmapping. */
-   struct ir_variable *texcoord_tex[MAX_TEXTURE_COORD_UNITS];
+   ir_variable *texcoord_tex[MAX_TEXTURE_COORD_UNITS];
 
    /* Reg containing texcoord for a texture unit,
     * needed for bump mapping, else undef.
@@ -1498,25 +1499,48 @@ create_new_program(struct gl_context *ctx, struct state_key *key)
    /* Set the sampler uniforms, and relink to get them into the linked
     * program.
     */
-   struct gl_program *fp;
-   fp = p.shader_program->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program;
+   struct gl_shader *const fs =
+      p.shader_program->_LinkedShaders[MESA_SHADER_FRAGMENT];
+   struct gl_program *const fp = fs->Program;
+
+   _mesa_generate_parameters_list_for_uniforms(p.shader_program, fs,
+					       fp->Parameters);
+
+   _mesa_associate_uniform_storage(ctx, p.shader_program, fp->Parameters);
 
    for (unsigned int i = 0; i < MAX_TEXTURE_UNITS; i++) {
-      char *name = ralloc_asprintf(p.mem_ctx, "sampler_%d", i);
+      /* Enough space for 'sampler_999\0'.
+       */
+      char name[12];
+
+      snprintf(name, sizeof(name), "sampler_%d", i);
+
       int loc = _mesa_get_uniform_location(ctx, p.shader_program, name);
       if (loc != -1) {
+	 unsigned base;
+	 unsigned idx;
+
 	 /* Avoid using _mesa_uniform() because it flags state
 	  * updates, so if we're generating this shader_program in a
 	  * state update, we end up recursing.  Instead, just set the
 	  * value, which is picked up at re-link.
 	  */
-	 loc = (loc & 0xffff) + (loc >> 16);
-	 int sampler = fp->Parameters->ParameterValues[loc][0].f;
+	 _mesa_uniform_split_location_offset(loc, &base, &idx);
+	 assert(idx == 0);
 
-	 fp->SamplerUnits[sampler] = i;
+	 struct gl_uniform_storage *const storage =
+	    &p.shader_program->UniformStorage[base];
+
+	 /* Update the storage, the SamplerUnits in the shader program, and
+	  * the SamplerUnits in the assembly shader.
+	  */
+	 storage->storage[idx].i = i;
+	 fp->SamplerUnits[storage->sampler] = i;
+	 p.shader_program->SamplerUnits[storage->sampler] = i;
+	 _mesa_propagate_uniforms_to_driver_storage(storage, 0, 1);
       }
    }
-   _mesa_update_shader_textures_used(fp);
+   _mesa_update_shader_textures_used(p.shader_program, fp);
    (void) ctx->Driver.ProgramStringNotify(ctx, fp->Target, fp);
 
    if (!p.shader_program->LinkStatus)
diff --git a/mesalib/src/mesa/main/ffvertex_prog.c b/mesalib/src/mesa/main/ffvertex_prog.c
index 19d319a56..f1ab75333 100644
--- a/mesalib/src/mesa/main/ffvertex_prog.c
+++ b/mesalib/src/mesa/main/ffvertex_prog.c
@@ -378,7 +378,7 @@ static struct ureg swizzle1( struct ureg reg, int x )
 
 static struct ureg get_temp( struct tnl_program *p )
 {
-   int bit = _mesa_ffs( ~p->temp_in_use );
+   int bit = ffs( ~p->temp_in_use );
    if (!bit) {
       _mesa_problem(NULL, "%s: out of temporaries\n", __FILE__);
       exit(1);
diff --git a/mesalib/src/mesa/main/framebuffer.c b/mesalib/src/mesa/main/framebuffer.c
index 730de6206..7c3c4e345 100644
--- a/mesalib/src/mesa/main/framebuffer.c
+++ b/mesalib/src/mesa/main/framebuffer.c
@@ -281,8 +281,8 @@ _mesa_resize_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
     * and return early.
     */
 
-   /* For window system framebuffers, Name is zero */
-   assert(fb->Name == 0);
+   /* Can only resize win-sys framebuffer objects */
+   assert(_mesa_is_winsys_fbo(fb));
 
    for (i = 0; i < BUFFER_COUNT; i++) {
       struct gl_renderbuffer_attachment *att = &fb->Attachment[i];
@@ -408,7 +408,7 @@ update_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb)
    GLuint i;
 
    /* user-created framebuffers only */
-   assert(fb->Name);
+   assert(_mesa_is_user_fbo(fb));
 
    for (i = 0; i < BUFFER_COUNT; i++) {
       struct gl_renderbuffer_attachment *att = &fb->Attachment[i];
@@ -687,7 +687,7 @@ update_color_read_buffer(struct gl_context *ctx, struct gl_framebuffer *fb)
 static void
 update_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
 {
-   if (fb->Name == 0) {
+   if (_mesa_is_winsys_fbo(fb)) {
       /* This is a window-system framebuffer */
       /* Need to update the FB's GL_DRAW_BUFFER state to match the
        * context state (GL_READ_BUFFER too).
@@ -851,7 +851,6 @@ _mesa_source_buffer_exists(struct gl_context *ctx, GLenum format)
 
 /**
  * As above, but for drawing operations.
- * XXX could do some code merging w/ above function.
  */
 GLboolean
 _mesa_dest_buffer_exists(struct gl_context *ctx, GLenum format)
diff --git a/mesalib/src/mesa/main/hash.c b/mesalib/src/mesa/main/hash.c
index 4b250ad54..61c369a80 100644
--- a/mesalib/src/mesa/main/hash.c
+++ b/mesalib/src/mesa/main/hash.c
@@ -480,6 +480,26 @@ _mesa_HashFindFreeKeyBlock(struct _mesa_HashTable *table, GLuint numKeys)
 }
 
 
+/**
+ * Return the number of entries in the hash table.
+ */
+GLuint
+_mesa_HashNumEntries(const struct _mesa_HashTable *table)
+{
+   GLuint pos, count = 0;
+
+   for (pos = 0; pos < TABLE_SIZE; pos++) {
+      const struct HashEntry *entry;
+      for (entry = table->Table[pos]; entry; entry = entry->Next) {
+         count++;
+      }
+   }
+
+   return count;
+}
+
+
+
 #if 0 /* debug only */
 
 /**
diff --git a/mesalib/src/mesa/main/hash.h b/mesalib/src/mesa/main/hash.h
index 4f916f9d0..e935f8d39 100644
--- a/mesalib/src/mesa/main/hash.h
+++ b/mesalib/src/mesa/main/hash.h
@@ -63,6 +63,9 @@ extern void _mesa_HashPrint(const struct _mesa_HashTable *table);
 
 extern GLuint _mesa_HashFindFreeKeyBlock(struct _mesa_HashTable *table, GLuint numKeys);
 
+extern GLuint
+_mesa_HashNumEntries(const struct _mesa_HashTable *table);
+
 extern void _mesa_test_hash_functions(void);
 
 
diff --git a/mesalib/src/mesa/main/imports.c b/mesalib/src/mesa/main/imports.c
index 2469e4265..bbc6ac6e2 100644
--- a/mesalib/src/mesa/main/imports.c
+++ b/mesalib/src/mesa/main/imports.c
@@ -458,9 +458,8 @@ _mesa_inv_sqrtf(float n)
  * Find the first bit set in a word.
  */
 int
-_mesa_ffs(int32_t i)
+ffs(int i)
 {
-#if (defined(_WIN32) ) || defined(__IBMC__) || defined(__IBMCPP__)
    register int bit = 0;
    if (i != 0) {
       if ((i & 0xffff) == 0) {
@@ -482,9 +481,6 @@ _mesa_ffs(int32_t i)
       bit++;
    }
    return bit;
-#else
-   return ffs(i);
-#endif
 }
 
 
@@ -495,23 +491,24 @@ _mesa_ffs(int32_t i)
  *          if no bits set.
  */
 int
-_mesa_ffsll(int64_t val)
+ffsll(long long int val)
 {
    int bit;
 
    assert(sizeof(val) == 8);
 
-   bit = _mesa_ffs((int32_t)val);
+   bit = ffs((int) val);
    if (bit != 0)
       return bit;
 
-   bit = _mesa_ffs((int32_t)(val >> 32));
+   bit = ffs((int) (val >> 32));
    if (bit != 0)
       return 32 + bit;
 
    return 0;
 }
-#endif
+#endif /* __GNUC__ */
+
 
 #if !defined(__GNUC__) ||\
    ((__GNUC__ * 100 + __GNUC_MINOR__) < 304) /* Not gcc 3.4 or later */
diff --git a/mesalib/src/mesa/main/imports.h b/mesalib/src/mesa/main/imports.h
index b7e87439f..ce7b45d77 100644
--- a/mesalib/src/mesa/main/imports.h
+++ b/mesalib/src/mesa/main/imports.h
@@ -566,6 +566,9 @@ _mesa_inv_sqrtf(float x);
 extern void
 _mesa_init_sqrt_table(void);
 
+
+#ifndef FFS_DEFINED
+#define FFS_DEFINED 1
 #ifdef __GNUC__
 
 #if defined(__MINGW32__) || defined(__CYGWIN__) || defined(ANDROID) || defined(__APPLE__)
@@ -573,10 +576,16 @@ _mesa_init_sqrt_table(void);
 #define ffsll __builtin_ffsll
 #endif
 
-#define _mesa_ffs(i)  ffs(i)
-#define _mesa_ffsll(i)  ffsll(i)
+#else
+
+extern int ffs(int i);
+extern int ffsll(long long int i);
+
+#endif /*__ GNUC__ */
+#endif /* FFS_DEFINED */
 
-#if ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
+
+#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
 #define _mesa_bitcount(i) __builtin_popcount(i)
 #define _mesa_bitcount_64(i) __builtin_popcountll(i)
 #else
@@ -586,16 +595,6 @@ extern unsigned int
 _mesa_bitcount_64(uint64_t n);
 #endif
 
-#else
-extern int
-_mesa_ffs(int32_t i);
-
-extern int
-_mesa_ffsll(int64_t i);
-
-extern unsigned int
-_mesa_bitcount(unsigned int n);
-#endif
 
 extern GLhalfARB
 _mesa_float_to_half(float f);
diff --git a/mesalib/src/mesa/main/mipmap.c b/mesalib/src/mesa/main/mipmap.c
index 867506c9f..03ce5361e 100644
--- a/mesalib/src/mesa/main/mipmap.c
+++ b/mesalib/src/mesa/main/mipmap.c
@@ -476,7 +476,7 @@ do_row(GLenum datatype, GLuint comps, GLint srcWidth,
       GLuint *dst = (GLuint *) dstRow;
       for (i = j = 0, k = k0; i < (GLuint) dstWidth;
            i++, j += colStride, k += colStride) {
-         dst[i] = (GLfloat)(rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4);
+         dst[i] = rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4;
       }
    }
 
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index 64d8c8d3f..9fdabf98c 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -1894,8 +1894,6 @@ struct gl_program
 
    /** Map from sampler unit to texture unit (set by glUniform1i()) */
    GLubyte SamplerUnits[MAX_SAMPLERS];
-   /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
-   gl_texture_index SamplerTargets[MAX_SAMPLERS];
 
    /** Bitmask of which register files are read/written with indirect
     * addressing.  Mask of (1 << PROGRAM_x) bits.
@@ -2185,9 +2183,17 @@ struct gl_shader
 
    unsigned Version;       /**< GLSL version used for linking */
 
-   unsigned num_samplers;	/**< Number of samplers used by this shader.
-				 * This field is only set post-linking.
-				 */
+   /**
+    * \name Sampler tracking
+    *
+    * \note Each of these fields is only set post-linking.
+    */
+   /*@{*/
+   unsigned num_samplers;	/**< Number of samplers used by this shader. */
+   GLbitfield active_samplers;	/**< Bitfield of which samplers are used */
+   GLbitfield shadow_samplers;	/**< Samplers used for shadow sampling. */
+   /*@}*/
+
    /**
     * Number of uniform components used by this shader.
     *
@@ -2277,6 +2283,8 @@ struct gl_shader_program
    /** Vertex shader state - copied into gl_vertex_program at link time */
    struct {
       GLboolean UsesClipDistance; /**< True if gl_ClipDistance is written to. */
+      GLuint ClipDistanceArraySize; /**< Size of the gl_ClipDistance array, or
+                                         0 if not present. */
    } Vert;
 
    /* post-link info: */
@@ -2348,6 +2356,8 @@ struct gl_shader_state
    struct gl_shader_program *CurrentGeometryProgram;
    struct gl_shader_program *CurrentFragmentProgram;
 
+   struct gl_shader_program *_CurrentFragmentProgram;
+
    /**
     * Program used by glUniform calls.
     *
diff --git a/mesalib/src/mesa/main/readpix.c b/mesalib/src/mesa/main/readpix.c
index 0c0e5394d..c1489d211 100644
--- a/mesalib/src/mesa/main/readpix.c
+++ b/mesalib/src/mesa/main/readpix.c
@@ -782,6 +782,11 @@ _mesa_ReadnPixelsARB( GLint x, GLint y, GLsizei width, GLsizei height,
       return;
    }
 
+   if (ctx->ReadBuffer->Name != 0 && ctx->ReadBuffer->Visual.samples > 0) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(multisample FBO)");
+      return;
+   }
+
    if (!_mesa_source_buffer_exists(ctx, format)) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(no readbuffer)");
       return;
diff --git a/mesalib/src/mesa/main/renderbuffer.c b/mesalib/src/mesa/main/renderbuffer.c
index bb8f46d11..08e694673 100644
--- a/mesalib/src/mesa/main/renderbuffer.c
+++ b/mesalib/src/mesa/main/renderbuffer.c
@@ -132,7 +132,7 @@ _mesa_add_renderbuffer(struct gl_framebuffer *fb,
           fb->Attachment[bufferName].Renderbuffer == NULL);
 
    /* winsys vs. user-created buffer cross check */
-   if (fb->Name) {
+   if (_mesa_is_user_fbo(fb)) {
       assert(rb->Name);
    }
    else {
diff --git a/mesalib/src/mesa/main/shaderapi.c b/mesalib/src/mesa/main/shaderapi.c
index 9372d6dec..0e655a0d8 100644
--- a/mesalib/src/mesa/main/shaderapi.c
+++ b/mesalib/src/mesa/main/shaderapi.c
@@ -45,6 +45,7 @@
 #include "main/mtypes.h"
 #include "main/shaderapi.h"
 #include "main/shaderobj.h"
+#include "main/uniforms.h"
 #include "program/program.h"
 #include "program/prog_parameter.h"
 #include "ralloc.h"
@@ -124,6 +125,8 @@ _mesa_free_shader_state(struct gl_context *ctx)
 				  NULL);
    _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentFragmentProgram,
 				  NULL);
+   _mesa_reference_shader_program(ctx, &ctx->Shader._CurrentFragmentProgram,
+				  NULL);
    _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, NULL);
 }
 
@@ -876,6 +879,33 @@ use_shader_program(struct gl_context *ctx, GLenum type,
 
    if (*target != shProg) {
       FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);
+
+      /* If the shader is also bound as the current rendering shader, unbind
+       * it from that binding point as well.  This ensures that the correct
+       * semantics of glDeleteProgram are maintained.
+       */
+      switch (type) {
+#if FEATURE_ARB_vertex_shader
+      case GL_VERTEX_SHADER:
+	 /* Empty for now. */
+	 break;
+#endif
+#if FEATURE_ARB_geometry_shader4
+      case GL_GEOMETRY_SHADER_ARB:
+	 /* Empty for now. */
+	 break;
+#endif
+#if FEATURE_ARB_fragment_shader
+      case GL_FRAGMENT_SHADER:
+	 if (*target == ctx->Shader._CurrentFragmentProgram) {
+	    _mesa_reference_shader_program(ctx,
+					   &ctx->Shader._CurrentFragmentProgram,
+					   NULL);
+	 }
+	 break;
+#endif
+      }
+
       _mesa_reference_shader_program(ctx, target, shProg);
       return true;
    }
@@ -900,61 +930,6 @@ _mesa_use_program(struct gl_context *ctx, struct gl_shader_program *shProg)
 
 
 /**
- * Validate a program's samplers.
- * Specifically, check that there aren't two samplers of different types
- * pointing to the same texture unit.
- * \return GL_TRUE if valid, GL_FALSE if invalid
- */
-static GLboolean
-validate_samplers(const struct gl_program *prog, char *errMsg)
-{
-   static const char *targetName[] = {
-      "TEXTURE_BUFFER",
-      "TEXTURE_2D_ARRAY",
-      "TEXTURE_1D_ARRAY",
-      "TEXTURE_EXTERNAL",
-      "TEXTURE_CUBE",
-      "TEXTURE_3D",
-      "TEXTURE_RECT",
-      "TEXTURE_2D",
-      "TEXTURE_1D",
-   };
-   GLint targetUsed[MAX_COMBINED_TEXTURE_IMAGE_UNITS];
-   GLbitfield samplersUsed = prog->SamplersUsed;
-   GLuint i;
-
-   STATIC_ASSERT(Elements(targetName) == NUM_TEXTURE_TARGETS);
-
-   if (samplersUsed == 0x0)
-      return GL_TRUE;
-
-   for (i = 0; i < Elements(targetUsed); i++)
-      targetUsed[i] = -1;
-
-   /* walk over bits which are set in 'samplers' */
-   while (samplersUsed) {
-      GLuint unit;
-      gl_texture_index target;
-      GLint sampler = _mesa_ffs(samplersUsed) - 1;
-      assert(sampler >= 0);
-      assert(sampler < Elements(prog->SamplerUnits));
-      unit = prog->SamplerUnits[sampler];
-      target = prog->SamplerTargets[sampler];
-      if (targetUsed[unit] != -1 && targetUsed[unit] != (int) target) {
-         _mesa_snprintf(errMsg, 100,
-		  "Texture unit %d is accessed both as %s and %s",
-		  unit, targetName[targetUsed[unit]], targetName[target]);
-         return GL_FALSE;
-      }
-      targetUsed[unit] = target;
-      samplersUsed ^= (1 << sampler);
-   }
-
-   return GL_TRUE;
-}
-
-
-/**
  * Do validation of the given shader program.
  * \param errMsg  returns error message if validation fails.
  * \return GL_TRUE if valid, GL_FALSE if invalid (and set errMsg)
@@ -963,8 +938,6 @@ static GLboolean
 validate_shader_program(const struct gl_shader_program *shProg,
                         char *errMsg)
 {
-   unsigned i;
-
    if (!shProg->LinkStatus) {
       return GL_FALSE;
    }
@@ -989,12 +962,8 @@ validate_shader_program(const struct gl_shader_program *shProg,
     * Check: any two active samplers in the current program object are of
     * different types, but refer to the same texture image unit,
     */
-   for (i = 0; i < Elements(shProg->_LinkedShaders); i++) {
-      if (shProg->_LinkedShaders[i]
-	  && !validate_samplers(shProg->_LinkedShaders[i]->Program, errMsg)) {
-	 return GL_FALSE;
-      }
-   }
+   if (!_mesa_sampler_uniforms_are_valid(shProg, errMsg, 100))
+      return GL_FALSE;
 
    return GL_TRUE;
 }
diff --git a/mesalib/src/mesa/main/state.c b/mesalib/src/mesa/main/state.c
index 7e43563bd..b910543e2 100644
--- a/mesalib/src/mesa/main/state.c
+++ b/mesalib/src/mesa/main/state.c
@@ -43,6 +43,7 @@
 #include "pixel.h"
 #include "program/program.h"
 #include "program/prog_parameter.h"
+#include "shaderobj.h"
 #include "state.h"
 #include "stencil.h"
 #include "texenvprogram.h"
@@ -227,7 +228,7 @@ update_program(struct gl_context *ctx)
 {
    const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram;
    const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram;
-   const struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram;
+   struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram;
    const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;
    const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;
    const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current;
@@ -252,12 +253,18 @@ update_program(struct gl_context *ctx)
    if (fsProg && fsProg->LinkStatus
        && fsProg->_LinkedShaders[MESA_SHADER_FRAGMENT]) {
       /* Use GLSL fragment shader */
+      _mesa_reference_shader_program(ctx,
+				     &ctx->Shader._CurrentFragmentProgram,
+				     fsProg);
       _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
 			       (struct gl_fragment_program *)
 			       fsProg->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program);
    }
    else if (ctx->FragmentProgram._Enabled) {
       /* Use user-defined fragment program */
+      _mesa_reference_shader_program(ctx,
+				     &ctx->Shader._CurrentFragmentProgram,
+				     NULL);
       _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
                                ctx->FragmentProgram.Current);
    }
@@ -265,6 +272,9 @@ update_program(struct gl_context *ctx)
       /* Use fragment program generated from fixed-function state */
       struct gl_shader_program *f = _mesa_get_fixed_func_fragment_program(ctx);
 
+      _mesa_reference_shader_program(ctx,
+				     &ctx->Shader._CurrentFragmentProgram,
+				     f);
       _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
 			       (struct gl_fragment_program *)
                                f->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program);
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index 9475e84f5..39732522c 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -1900,7 +1900,7 @@ copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
    }
 
    /* Check that the source buffer is complete */
-   if (ctx->ReadBuffer->Name) {
+   if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
       if (ctx->ReadBuffer->_Status == 0) {
          _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
       }
@@ -1909,6 +1909,13 @@ copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
                      "glCopyTexImage%dD(invalid readbuffer)", dimensions);
          return GL_TRUE;
       }
+
+      if (ctx->ReadBuffer->Visual.samples > 0) {
+	 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION,
+		     "glCopyTexImage%dD(multisample FBO)",
+		     dimensions);
+	 return GL_TRUE;
+      }
    }
 
    /* Check border */
@@ -1999,7 +2006,7 @@ copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
                               GLenum target, GLint level)
 {
    /* Check that the source buffer is complete */
-   if (ctx->ReadBuffer->Name) {
+   if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
       if (ctx->ReadBuffer->_Status == 0) {
          _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
       }
@@ -2008,6 +2015,13 @@ copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
                      "glCopyTexImage%dD(invalid readbuffer)", dimensions);
          return GL_TRUE;
       }
+
+      if (ctx->ReadBuffer->Visual.samples > 0) {
+	 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION,
+		     "glCopyTexSubImage%dD(multisample FBO)",
+		     dimensions);
+	 return GL_TRUE;
+      }
    }
 
    /* check target (proxies not allowed) */
@@ -2179,7 +2193,7 @@ check_rtt_cb(GLuint key, void *data, void *userData)
    const GLuint level = info->level, face = info->face;
 
    /* If this is a user-created FBO */
-   if (fb->Name) {
+   if (_mesa_is_user_fbo(fb)) {
       GLuint i;
       /* check if any of the FBO's attachments point to 'texObj' */
       for (i = 0; i < BUFFER_COUNT; i++) {
diff --git a/mesalib/src/mesa/main/texobj.c b/mesalib/src/mesa/main/texobj.c
index 7ee200585..1b61d3a63 100644
--- a/mesalib/src/mesa/main/texobj.c
+++ b/mesalib/src/mesa/main/texobj.c
@@ -672,9 +672,11 @@ _mesa_test_texobj_completeness( const struct gl_context *ctx,
 		     return;
 		  }
 		  /* Don't support GL_DEPTH_COMPONENT for cube maps */
-		  if (t->Image[face][i]->_BaseFormat == GL_DEPTH_COMPONENT) {
-		     incomplete(t, "GL_DEPTH_COMPONENT only works with 1/2D tex");
-		     return;
+                  if (ctx->VersionMajor < 3 && !ctx->Extensions.EXT_gpu_shader4) {
+                     if (t->Image[face][i]->_BaseFormat == GL_DEPTH_COMPONENT) {
+                        incomplete(t, "GL_DEPTH_COMPONENT only works with 1/2D tex");
+                        return;
+                     }
 		  }
 		  /* check that all six images have same size */
                   if (t->Image[face][i]->Width2 != width || 
@@ -891,7 +893,7 @@ unbind_texobj_from_fbo(struct gl_context *ctx,
 
    for (i = 0; i < n; i++) {
       struct gl_framebuffer *fb = (i == 0) ? ctx->DrawBuffer : ctx->ReadBuffer;
-      if (fb->Name) {
+      if (_mesa_is_user_fbo(fb)) {
          GLuint j;
          for (j = 0; j < BUFFER_COUNT; j++) {
             if (fb->Attachment[j].Type == GL_TEXTURE &&
diff --git a/mesalib/src/mesa/main/texstore.c b/mesalib/src/mesa/main/texstore.c
index 512965fc3..a9c64cede 100644
--- a/mesalib/src/mesa/main/texstore.c
+++ b/mesalib/src/mesa/main/texstore.c
@@ -515,9 +515,9 @@ make_temp_uint_image(struct gl_context *ctx, GLuint dims,
          for (k = 0; k < texComponents; k++) {
             GLint j = map[k];
             if (j == ZERO)
-               newImage[i * texComponents + k] = 0.0F;
+               newImage[i * texComponents + k] = 0;
             else if (j == ONE)
-               newImage[i * texComponents + k] = 1.0F;
+               newImage[i * texComponents + k] = 1;
             else
                newImage[i * texComponents + k] = tempImage[i * logComponents + j];
          }
@@ -4094,7 +4094,7 @@ _mesa_texstore_z32f_x24s8(TEXSTORE_PARAMS)
                _mesa_unpack_depth_span(ctx, srcWidth,
                                        GL_FLOAT_32_UNSIGNED_INT_24_8_REV, /* dst type */
                                        dstRow, /* dst addr */
-                                       1.0f, srcType, src, srcPacking);
+                                       ~0U, srcType, src, srcPacking);
 
             if (srcFormat != GL_DEPTH_COMPONENT)
                _mesa_unpack_stencil_span(ctx, srcWidth,
diff --git a/mesalib/src/mesa/main/uniform_query.cpp b/mesalib/src/mesa/main/uniform_query.cpp
index f3d6a16ee..869f7d373 100644
--- a/mesalib/src/mesa/main/uniform_query.cpp
+++ b/mesalib/src/mesa/main/uniform_query.cpp
@@ -691,19 +691,16 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg,
 
       bool flushed = false;
       for (i = 0; i < MESA_SHADER_TYPES; i++) {
-	 struct gl_program *prog;
-
-	 if (shProg->_LinkedShaders[i] == NULL)
-	    continue;
-
-	 prog = shProg->_LinkedShaders[i]->Program;
+	 struct gl_shader *const sh = shProg->_LinkedShaders[i];
 
 	 /* If the shader stage doesn't use any samplers, don't bother
 	  * checking if any samplers have changed.
 	  */
-	 if (prog->SamplersUsed == 0)
+	 if (sh == NULL || sh->active_samplers == 0)
 	    continue;
 
+	 struct gl_program *const prog = sh->Program;
+
 	 assert(sizeof(prog->SamplerUnits) == sizeof(shProg->SamplerUnits));
 
 	 /* Determine if any of the samplers used by this shader stage have
@@ -711,7 +708,7 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg,
 	  */
 	 bool changed = false;
 	 for (unsigned j = 0; j < Elements(prog->SamplerUnits); j++) {
-	    if ((prog->SamplersUsed & (1U << j)) != 0
+	    if ((sh->active_samplers & (1U << j)) != 0
 		&& (prog->SamplerUnits[j] != shProg->SamplerUnits[j])) {
 	       changed = true;
 	       break;
@@ -728,7 +725,7 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg,
 		   shProg->SamplerUnits,
 		   sizeof(shProg->SamplerUnits));
 
-	    _mesa_update_shader_textures_used(prog);
+	    _mesa_update_shader_textures_used(shProg, prog);
 	    (void) ctx->Driver.ProgramStringNotify(ctx, prog->Target, prog);
 	 }
       }
@@ -933,3 +930,46 @@ _mesa_get_uniform_location(struct gl_context *ctx,
 
    return _mesa_uniform_merge_location_offset(location, offset);
 }
+
+extern "C" bool
+_mesa_sampler_uniforms_are_valid(const struct gl_shader_program *shProg,
+				 char *errMsg, size_t errMsgLength)
+{
+   const glsl_type *unit_types[MAX_COMBINED_TEXTURE_IMAGE_UNITS];
+
+   memset(unit_types, 0, sizeof(unit_types));
+
+   for (unsigned i = 0; i < shProg->NumUserUniformStorage; i++) {
+      const struct gl_uniform_storage *const storage =
+	 &shProg->UniformStorage[i];
+      const glsl_type *const t = (storage->type->is_array())
+	 ? storage->type->fields.array : storage->type;
+
+      if (!t->is_sampler())
+	 continue;
+
+      const unsigned count = MAX2(1, storage->type->array_size());
+      for (unsigned j = 0; j < count; j++) {
+	 const unsigned unit = storage->storage[j].i;
+
+	 /* The types of the samplers associated with a particular texture
+	  * unit must be an exact match.  Page 74 (page 89 of the PDF) of the
+	  * OpenGL 3.3 core spec says:
+	  *
+	  *     "It is not allowed to have variables of different sampler
+	  *     types pointing to the same texture image unit within a program
+	  *     object."
+	  */
+	 if (unit_types[unit] == NULL) {
+	    unit_types[unit] = t;
+	 } else if (unit_types[unit] != t) {
+	    _mesa_snprintf(errMsg, errMsgLength,
+			   "Texture unit %d is accessed both as %s and %s",
+			   unit, unit_types[unit]->name, t->name);
+	    return false;
+	 }
+      }
+   }
+
+   return true;
+}
diff --git a/mesalib/src/mesa/main/uniforms.c b/mesalib/src/mesa/main/uniforms.c
index 685c0f13f..e0214a88a 100644
--- a/mesalib/src/mesa/main/uniforms.c
+++ b/mesalib/src/mesa/main/uniforms.c
@@ -60,7 +60,8 @@
  * We'll use that info for state validation before rendering.
  */
 void
-_mesa_update_shader_textures_used(struct gl_program *prog)
+_mesa_update_shader_textures_used(struct gl_shader_program *shProg,
+				  struct gl_program *prog)
 {
    GLuint s;
 
@@ -68,8 +69,8 @@ _mesa_update_shader_textures_used(struct gl_program *prog)
 
    for (s = 0; s < MAX_SAMPLERS; s++) {
       if (prog->SamplersUsed & (1 << s)) {
-         GLuint unit = prog->SamplerUnits[s];
-         GLuint tgt = prog->SamplerTargets[s];
+         GLuint unit = shProg->SamplerUnits[s];
+         GLuint tgt = shProg->SamplerTargets[s];
          assert(unit < Elements(prog->TexturesUsed));
          assert(tgt < NUM_TEXTURE_TARGETS);
          prog->TexturesUsed[unit] |= (1 << tgt);
diff --git a/mesalib/src/mesa/main/uniforms.h b/mesalib/src/mesa/main/uniforms.h
index 123d7b954..7b512a527 100644
--- a/mesalib/src/mesa/main/uniforms.h
+++ b/mesalib/src/mesa/main/uniforms.h
@@ -212,8 +212,12 @@ _mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni,
 					   unsigned count);
 
 extern void
-_mesa_update_shader_textures_used(struct gl_program *prog);
+_mesa_update_shader_textures_used(struct gl_shader_program *shProg,
+				  struct gl_program *prog);
 
+extern bool
+_mesa_sampler_uniforms_are_valid(const struct gl_shader_program *shProg,
+				 char *errMsg, size_t errMsgLength);
 
 extern void
 _mesa_init_shader_uniform_dispatch(struct _glapi_table *exec);
diff --git a/mesalib/src/mesa/main/version.h b/mesalib/src/mesa/main/version.h
index d288c4d55..8723c1f57 100644
--- a/mesalib/src/mesa/main/version.h
+++ b/mesalib/src/mesa/main/version.h
@@ -42,17 +42,6 @@ struct gl_context;
 #define MESA_VERSION_CODE MESA_VERSION(MESA_MAJOR, MESA_MINOR, MESA_PATCH)
 
 
-/* OpenGL API version */
-#define OPENGL_MAJOR 2
-#define OPENGL_MINOR 1
-#define OPENGL_PATCH 0
-#define OPENGL_VERSION_STRING "2.1"
-
-/* To make version comparison easy */
-#define OPENGL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-#define OPENGL_VERSION_CODE OPENGL_VERSION(OPENGL_MAJOR, OPENGL_MINOR, OPENGL_PATCH)
-
-
 extern void
 _mesa_compute_version(struct gl_context *ctx);
 
diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp
index 5a68fc51d..6a90d5ad7 100644
--- a/mesalib/src/mesa/program/ir_to_mesa.cpp
+++ b/mesalib/src/mesa/program/ir_to_mesa.cpp
@@ -2490,34 +2490,6 @@ print_program(struct prog_instruction *mesa_instructions,
    }
 }
 
-
-/**
- * Count resources used by the given gpu program (number of texture
- * samplers, etc).
- */
-static void
-count_resources(struct gl_program *prog)
-{
-   unsigned int i;
-
-   prog->SamplersUsed = 0;
-
-   for (i = 0; i < prog->NumInstructions; i++) {
-      struct prog_instruction *inst = &prog->Instructions[i];
-
-      if (_mesa_is_tex_instruction(inst->Opcode)) {
-	 prog->SamplerTargets[inst->TexSrcUnit] =
-	    (gl_texture_index)inst->TexSrcTarget;
-	 prog->SamplersUsed |= 1 << inst->TexSrcUnit;
-	 if (inst->TexShadow) {
-	    prog->ShadowSamplers |= 1 << inst->TexSrcUnit;
-	 }
-      }
-   }
-
-   _mesa_update_shader_textures_used(prog);
-}
-
 class add_uniform_to_shader : public uniform_field_visitor {
 public:
    add_uniform_to_shader(struct gl_shader_program *shader_program,
@@ -3197,7 +3169,10 @@ get_mesa_program(struct gl_context *ctx,
    mesa_instructions = NULL;
 
    do_set_program_inouts(shader->ir, prog, shader->Type == GL_FRAGMENT_SHADER);
-   count_resources(prog);
+
+   prog->SamplersUsed = shader->active_samplers;
+   prog->ShadowSamplers = shader->shadow_samplers;
+   _mesa_update_shader_textures_used(shader_program, prog);
 
    /* Set the gl_FragDepth layout. */
    if (target == GL_FRAGMENT_PROGRAM_ARB) {
diff --git a/mesalib/src/mesa/program/prog_print.c b/mesalib/src/mesa/program/prog_print.c
index 352a80f27..46f1df0fc 100644
--- a/mesalib/src/mesa/program/prog_print.c
+++ b/mesalib/src/mesa/program/prog_print.c
@@ -194,7 +194,7 @@ _mesa_print_vp_inputs(GLbitfield inputs)
 {
    printf("VP Inputs 0x%x: \n", inputs);
    while (inputs) {
-      GLint attr = _mesa_ffs(inputs) - 1;
+      GLint attr = ffs(inputs) - 1;
       const char *name = arb_input_attrib_string(attr,
                                                  GL_VERTEX_PROGRAM_ARB);
       printf("  %d: %s\n", attr, name);
@@ -212,7 +212,7 @@ _mesa_print_fp_inputs(GLbitfield inputs)
 {
    printf("FP Inputs 0x%x: \n", inputs);
    while (inputs) {
-      GLint attr = _mesa_ffs(inputs) - 1;
+      GLint attr = ffs(inputs) - 1;
       const char *name = arb_input_attrib_string(attr,
                                                  GL_FRAGMENT_PROGRAM_ARB);
       printf("  %d: %s\n", attr, name);
diff --git a/mesalib/src/mesa/state_tracker/st_atom_texture.c b/mesalib/src/mesa/state_tracker/st_atom_texture.c
index 008e9bd10..88e6128c8 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_texture.c
@@ -1,8 +1,8 @@
 /**************************************************************************
- * 
+ *
  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
  * 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
@@ -10,11 +10,11 @@
  * 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.
@@ -22,7 +22,7 @@
  * 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.
- * 
+ *
  **************************************************************************/
 
  /*
@@ -30,7 +30,7 @@
   *   Keith Whitwell <keith@tungstengraphics.com>
   *   Brian Paul
   */
- 
+
 
 #include "main/macros.h"
 #include "main/mtypes.h"
@@ -182,8 +182,10 @@ st_get_texture_sampler_view_from_stobj(struct st_texture_object *stObj,
    return stObj->sampler_view;
 }
 
+
 static GLboolean
-update_single_texture(struct st_context *st, struct pipe_sampler_view **sampler_view,
+update_single_texture(struct st_context *st,
+                      struct pipe_sampler_view **sampler_view,
 		      GLuint texUnit)
 {
    struct pipe_context *pipe = st->pipe;
@@ -233,7 +235,6 @@ update_single_texture(struct st_context *st, struct pipe_sampler_view **sampler_
 	 st_view_format = firstImageFormat;
    }
 
-
    /* if sampler view has changed dereference it */
    if (stObj->sampler_view) {
       if (check_sampler_swizzle(stObj->sampler_view,
@@ -251,7 +252,8 @@ update_single_texture(struct st_context *st, struct pipe_sampler_view **sampler_
    return GL_TRUE;
 }
 
-static void 
+
+static void
 update_vertex_textures(struct st_context *st)
 {
    const struct gl_context *ctx = st->ctx;
@@ -275,7 +277,8 @@ update_vertex_textures(struct st_context *st)
 
          st->state.num_vertex_textures = su + 1;
       }
-      pipe_sampler_view_reference(&st->state.sampler_vertex_views[su], sampler_view);
+      pipe_sampler_view_reference(&st->state.sampler_vertex_views[su],
+                                  sampler_view);
    }
 
    if (ctx->Const.MaxVertexTextureImageUnits > 0) {
@@ -287,7 +290,8 @@ update_vertex_textures(struct st_context *st)
    }
 }
 
-static void 
+
+static void
 update_fragment_textures(struct st_context *st)
 {
    const struct gl_context *ctx = st->ctx;
@@ -319,6 +323,7 @@ update_fragment_textures(struct st_context *st)
                                   st->state.sampler_views);
 }
 
+
 const struct st_tracked_state st_update_texture = {
    "st_update_texture",					/* name */
    {							/* dirty */
@@ -328,8 +333,9 @@ const struct st_tracked_state st_update_texture = {
    update_fragment_textures				/* update */
 };
 
+
 const struct st_tracked_state st_update_vertex_texture = {
-   "st_update_vertex_texture",					/* name */
+   "st_update_vertex_texture",				/* name */
    {							/* dirty */
       _NEW_TEXTURE,					/* mesa */
       ST_NEW_VERTEX_PROGRAM,				/* st */
@@ -337,7 +343,9 @@ const struct st_tracked_state st_update_vertex_texture = {
    update_vertex_textures				/* update */
 };
 
-static void 
+
+
+static void
 finalize_textures(struct st_context *st)
 {
    struct gl_context *ctx = st->ctx;
@@ -371,7 +379,6 @@ finalize_textures(struct st_context *st)
 }
 
 
-
 const struct st_tracked_state st_finalize_textures = {
    "st_finalize_textures",		/* name */
    {					/* dirty */
diff --git a/mesalib/src/mesa/state_tracker/st_draw.c b/mesalib/src/mesa/state_tracker/st_draw.c
index 6d6fc858d..c0554cfc7 100644
--- a/mesalib/src/mesa/state_tracker/st_draw.c
+++ b/mesalib/src/mesa/state_tracker/st_draw.c
@@ -990,7 +990,8 @@ st_draw_vbo(struct gl_context *ctx,
       /* Gallium probably doesn't want this in some cases. */
       if (!index_bounds_valid)
          if (!all_varyings_in_vbos(arrays))
-            vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
+            vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index,
+                                   nr_prims);
 
       for (i = 0; i < nr_prims; i++) {
          num_instances = MAX2(num_instances, prims[i].num_instances);
diff --git a/mesalib/src/mesa/state_tracker/st_draw_feedback.c b/mesalib/src/mesa/state_tracker/st_draw_feedback.c
index fbf0349b4..a559b733a 100644
--- a/mesalib/src/mesa/state_tracker/st_draw_feedback.c
+++ b/mesalib/src/mesa/state_tracker/st_draw_feedback.c
@@ -119,7 +119,7 @@ st_feedback_draw_vbo(struct gl_context *ctx,
    st_validate_state(st);
 
    if (!index_bounds_valid)
-      vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
+      vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims);
 
    /* must get these after state validation! */
    vp = st->vp;
diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c
index a9d405436..49c874710 100644
--- a/mesalib/src/mesa/state_tracker/st_extensions.c
+++ b/mesalib/src/mesa/state_tracker/st_extensions.c
@@ -263,12 +263,6 @@ void st_init_extensions(struct st_context *st)
    ctx->Const.GLSLVersion = 120;
    _mesa_override_glsl_version(st->ctx);
 
-   /* Extensions that only depend on the GLSL version:
-    */
-   if (ctx->Const.GLSLVersion >= 130) {
-      ctx->Extensions.ARB_conservative_depth = GL_TRUE;
-   }
-
    /*
     * Extensions that are supported by all Gallium drivers:
     */
@@ -587,6 +581,23 @@ void st_init_extensions(struct st_context *st)
 #endif
    }
 
+   if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
+                                PIPE_SHADER_CAP_INTEGERS) &&
+       screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
+                                PIPE_SHADER_CAP_INTEGERS)) {
+      ctx->Const.NativeIntegers = GL_TRUE;
+   }
+
+   if (ctx->Const.NativeIntegers)
+      ctx->Const.GLSLVersion = 130;
+
+   /* Extensions that only depend on the GLSL version:
+    */
+   if (ctx->Const.GLSLVersion >= 130) {
+      ctx->Extensions.ARB_conservative_depth = GL_TRUE;
+      ctx->Const.MaxClipPlanes = 8;
+   }
+
    ctx->Extensions.NV_primitive_restart = GL_TRUE;
    if (!screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {
       st->sw_primitive_restart = GL_TRUE;
@@ -703,4 +714,12 @@ void st_init_extensions(struct st_context *st)
          ctx->Extensions.ARB_transform_feedback2 = GL_TRUE;
       }
    }
+
+   if (ctx->Const.NativeIntegers &&
+       screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_UINT, PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET) &&
+       screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_SINT, PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET))
+      ctx->Extensions.EXT_texture_integer = GL_TRUE;
+
 }
diff --git a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 3b8e2fe37..26047cfe0 100644
--- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -664,6 +664,9 @@ glsl_to_tgsi_visitor::get_opcode(ir_instruction *ir, unsigned op,
       case3(SLT, ISLT, USLT);
       
       case2iu(ISHR, USHR);
+
+      case2fi(SSG, ISSG);
+      case3(ABS, IABS, IABS);
       
       default: break;
    }
@@ -1410,10 +1413,7 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
       }
       break;
    case ir_unop_abs:
-      if (result_dst.type == GLSL_TYPE_INT || result_dst.type == GLSL_TYPE_UINT)
-         emit(ir, TGSI_OPCODE_IABS, result_dst, op[0]);
-      else
-         emit(ir, TGSI_OPCODE_ABS, result_dst, op[0]);
+      emit(ir, TGSI_OPCODE_ABS, result_dst, op[0]);
       break;
    case ir_unop_sign:
       emit(ir, TGSI_OPCODE_SSG, result_dst, op[0]);
@@ -2646,8 +2646,9 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
       ir->shadow_comparitor->accept(this);
 
       /* XXX This will need to be updated for cubemap array samplers. */
-      if (sampler_type->sampler_dimensionality == GLSL_SAMPLER_DIM_2D &&
-          sampler_type->sampler_array) {
+      if ((sampler_type->sampler_dimensionality == GLSL_SAMPLER_DIM_2D &&
+	   sampler_type->sampler_array) ||
+	  sampler_type->sampler_dimensionality == GLSL_SAMPLER_DIM_CUBE) {
          coord_dst.writemask = WRITEMASK_W;
       } else {
          coord_dst.writemask = WRITEMASK_Z;
@@ -2842,8 +2843,6 @@ count_resources(glsl_to_tgsi_visitor *v, gl_program *prog)
       if (is_tex_instruction(inst->op)) {
          v->samplers_used |= 1 << inst->sampler;
 
-         prog->SamplerTargets[inst->sampler] =
-            (gl_texture_index)inst->tex_target;
          if (inst->tex_shadow) {
             prog->ShadowSamplers |= 1 << inst->sampler;
          }
@@ -2851,7 +2850,9 @@ count_resources(glsl_to_tgsi_visitor *v, gl_program *prog)
    }
    
    prog->SamplersUsed = v->samplers_used;
-   _mesa_update_shader_textures_used(prog);
+
+   if (v->shader_program != NULL)
+      _mesa_update_shader_textures_used(v->shader_program, prog);
 }
 
 static void
@@ -4181,7 +4182,7 @@ compile_tgsi_instruction(struct st_translate *t,
       ureg_tex_insn(ureg,
                     inst->op,
                     dst, num_dst, 
-                    translate_texture_target(inst->tex_target, inst->tex_shadow),
+                    st_translate_texture_target(inst->tex_target, inst->tex_shadow),
                     texoffsets, inst->tex_offset_num_offset,
                     src, num_src);
       return;
@@ -5010,13 +5011,18 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
       num_clip_distances[i] = get_clip_distance_size(ir);
 
       do {
+         unsigned what_to_lower = MOD_TO_FRACT | DIV_TO_MUL_RCP |
+            EXP_TO_EXP2 | LOG_TO_LOG2;
+         if (options->EmitNoPow)
+            what_to_lower |= POW_TO_EXP2;
+         if (!ctx->Const.NativeIntegers)
+            what_to_lower |= INT_DIV_TO_MUL_RCP;
+
          progress = false;
 
          /* Lowering */
          do_mat_op_to_vec(ir);
-         lower_instructions(ir, (MOD_TO_FRACT | DIV_TO_MUL_RCP | EXP_TO_EXP2
-				 | LOG_TO_LOG2 | INT_DIV_TO_MUL_RCP
-        			 | ((options->EmitNoPow) ? POW_TO_EXP2 : 0)));
+         lower_instructions(ir, what_to_lower);
 
          progress = do_lower_jumps(ir, true, true, options->EmitNoMainReturn, options->EmitNoCont, options->EmitNoLoops) || progress;
 
@@ -5087,7 +5093,7 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
 }
 
 void
-st_translate_stream_output_info(struct glsl_to_tgsi_visitor *glsl_to_tgsi,
+st_translate_stream_output_info(glsl_to_tgsi_visitor *glsl_to_tgsi,
                                 const GLuint outputMapping[],
                                 struct pipe_stream_output_info *so)
 {
diff --git a/mesalib/src/mesa/state_tracker/st_manager.c b/mesalib/src/mesa/state_tracker/st_manager.c
index b83cb2339..63920a39e 100644
--- a/mesalib/src/mesa/state_tracker/st_manager.c
+++ b/mesalib/src/mesa/state_tracker/st_manager.c
@@ -26,16 +26,6 @@
  *    Chia-I Wu <olv@lunarg.com>
  */
 
-#include "state_tracker/st_gl_api.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_screen.h"
-#include "util/u_format.h"
-#include "util/u_pointer.h"
-#include "util/u_inlines.h"
-#include "util/u_atomic.h"
-#include "util/u_surface.h"
-
 #include "main/mtypes.h"
 #include "main/context.h"
 #include "main/mfeatures.h"
@@ -54,6 +44,16 @@
 #include "st_cb_flush.h"
 #include "st_manager.h"
 
+#include "state_tracker/st_gl_api.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
+#include "util/u_format.h"
+#include "util/u_pointer.h"
+#include "util/u_inlines.h"
+#include "util/u_atomic.h"
+#include "util/u_surface.h"
+
 /**
  * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer.
  * Return NULL if the struct gl_framebuffer is a user-created framebuffer.
diff --git a/mesalib/src/mesa/state_tracker/st_mesa_to_tgsi.c b/mesalib/src/mesa/state_tracker/st_mesa_to_tgsi.c
index ac615343a..0764234bd 100644
--- a/mesalib/src/mesa/state_tracker/st_mesa_to_tgsi.c
+++ b/mesalib/src/mesa/state_tracker/st_mesa_to_tgsi.c
@@ -269,7 +269,7 @@ src_register( struct st_translate *t,
  * Map mesa texture target to TGSI texture target.
  */
 unsigned
-translate_texture_target( GLuint textarget,
+st_translate_texture_target( GLuint textarget,
                           GLboolean shadow )
 {
    if (shadow) {
@@ -279,6 +279,7 @@ translate_texture_target( GLuint textarget,
       case TEXTURE_RECT_INDEX: return TGSI_TEXTURE_SHADOWRECT;
       case TEXTURE_1D_ARRAY_INDEX: return TGSI_TEXTURE_SHADOW1D_ARRAY;
       case TEXTURE_2D_ARRAY_INDEX: return TGSI_TEXTURE_SHADOW2D_ARRAY;
+      case TEXTURE_CUBE_INDEX: return TGSI_TEXTURE_SHADOWCUBE;
       default: break;
       }
    }
@@ -515,7 +516,7 @@ static void emit_ddy( struct st_translate *t,
 
 
 
-unsigned
+static unsigned
 translate_opcode( unsigned op )
 {
    switch( op ) {
@@ -707,7 +708,7 @@ compile_instruction(
       ureg_tex_insn( ureg,
                      translate_opcode( inst->Opcode ),
                      dst, num_dst, 
-                     translate_texture_target( inst->TexSrcTarget,
+                     st_translate_texture_target( inst->TexSrcTarget,
                                                inst->TexShadow ),
                      NULL, 0,
                      src, num_src );
diff --git a/mesalib/src/mesa/state_tracker/st_mesa_to_tgsi.h b/mesalib/src/mesa/state_tracker/st_mesa_to_tgsi.h
index 0dbdf5f61..7563c8050 100644
--- a/mesalib/src/mesa/state_tracker/st_mesa_to_tgsi.h
+++ b/mesalib/src/mesa/state_tracker/st_mesa_to_tgsi.h
@@ -65,10 +65,7 @@ void
 st_free_tokens(const struct tgsi_token *tokens);
 
 unsigned
-translate_opcode(unsigned op);
-
-unsigned
-translate_texture_target(GLuint textarget, GLboolean shadow);
+st_translate_texture_target(GLuint textarget, GLboolean shadow);
 
 
 #if defined __cplusplus
diff --git a/mesalib/src/mesa/swrast/s_aalinetemp.h b/mesalib/src/mesa/swrast/s_aalinetemp.h
index 7c535669b..376ef32d0 100644
--- a/mesalib/src/mesa/swrast/s_aalinetemp.h
+++ b/mesalib/src/mesa/swrast/s_aalinetemp.h
@@ -1,242 +1,242 @@
-/*

- * Mesa 3-D graphics library

- * Version:  7.1

- *

- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining a

- * copy of this software and associated documentation files (the "Software"),

- * to deal in the Software without restriction, including without limitation

- * the rights to use, copy, modify, merge, publish, distribute, sublicense,

- * and/or sell copies of the Software, and to permit persons to whom the

- * Software is furnished to do so, subject to the following conditions:

- *

- * The above copyright notice and this permission notice shall be included

- * in all copies or substantial portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- */

-

-

-/*

- * Antialiased line template.

- */

-

-

-/*

- * Function to render each fragment in the AA line.

- * \param ix  - integer fragment window X coordiante

- * \param iy  - integer fragment window Y coordiante

- */

-static void

-NAME(plot)(struct gl_context *ctx, struct LineInfo *line, int ix, int iy)

-{

-   const SWcontext *swrast = SWRAST_CONTEXT(ctx);

-   const GLfloat fx = (GLfloat) ix;

-   const GLfloat fy = (GLfloat) iy;

-   const GLfloat coverage = compute_coveragef(line, ix, iy);

-   const GLuint i = line->span.end;

-

-   (void) swrast;

-

-   if (coverage == 0.0)

-      return;

-

-   line->span.end++;

-   line->span.array->coverage[i] = coverage;

-   line->span.array->x[i] = ix;

-   line->span.array->y[i] = iy;

-

-   /*

-    * Compute Z, color, texture coords, fog for the fragment by

-    * solving the plane equations at (ix,iy).

-    */

-#ifdef DO_Z

-   line->span.array->z[i] = (GLuint) solve_plane(fx, fy, line->zPlane);

-#endif

-   line->span.array->rgba[i][RCOMP] = solve_plane_chan(fx, fy, line->rPlane);

-   line->span.array->rgba[i][GCOMP] = solve_plane_chan(fx, fy, line->gPlane);

-   line->span.array->rgba[i][BCOMP] = solve_plane_chan(fx, fy, line->bPlane);

-   line->span.array->rgba[i][ACOMP] = solve_plane_chan(fx, fy, line->aPlane);

-#if defined(DO_ATTRIBS)

-   ATTRIB_LOOP_BEGIN

-      GLfloat (*attribArray)[4] = line->span.array->attribs[attr];

-      if (attr >= FRAG_ATTRIB_TEX0 && attr < FRAG_ATTRIB_VAR0

-          && !ctx->FragmentProgram._Current) {

-         /* texcoord w/ divide by Q */

-         const GLuint unit = attr - FRAG_ATTRIB_TEX0;

-         const GLfloat invQ = solve_plane_recip(fx, fy, line->attrPlane[attr][3]);

-         GLuint c;

-         for (c = 0; c < 3; c++) {

-            attribArray[i][c] = solve_plane(fx, fy, line->attrPlane[attr][c]) * invQ;

-         }

-         line->span.array->lambda[unit][i]

-            = compute_lambda(line->attrPlane[attr][0],

-                             line->attrPlane[attr][1], invQ,

-                             line->texWidth[attr], line->texHeight[attr]);

-      }

-      else {

-         /* non-texture attrib */

-         const GLfloat invW = solve_plane_recip(fx, fy, line->wPlane);

-         GLuint c;

-         for (c = 0; c < 4; c++) {

-            attribArray[i][c] = solve_plane(fx, fy, line->attrPlane[attr][c]) * invW;

-         }

-      }

-   ATTRIB_LOOP_END

-#endif

-

-   if (line->span.end == MAX_WIDTH) {

-      _swrast_write_rgba_span(ctx, &(line->span));

-      line->span.end = 0; /* reset counter */

-   }

-}

-

-

-

-/*

- * Line setup

- */

-static void

-NAME(line)(struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1)

-{

-   SWcontext *swrast = SWRAST_CONTEXT(ctx);

-   GLfloat tStart, tEnd;   /* segment start, end along line length */

-   GLboolean inSegment;

-   GLint iLen, i;

-

-   /* Init the LineInfo struct */

-   struct LineInfo line;

-   line.x0 = v0->attrib[FRAG_ATTRIB_WPOS][0];

-   line.y0 = v0->attrib[FRAG_ATTRIB_WPOS][1];

-   line.x1 = v1->attrib[FRAG_ATTRIB_WPOS][0];

-   line.y1 = v1->attrib[FRAG_ATTRIB_WPOS][1];

-   line.dx = line.x1 - line.x0;

-   line.dy = line.y1 - line.y0;

-   line.len = SQRTF(line.dx * line.dx + line.dy * line.dy);

-   line.halfWidth = 0.5F * CLAMP(ctx->Line.Width,

-                                 ctx->Const.MinLineWidthAA,

-                                 ctx->Const.MaxLineWidthAA);

-

-   if (line.len == 0.0 || IS_INF_OR_NAN(line.len))

-      return;

-

-   INIT_SPAN(line.span, GL_LINE);

-   line.span.arrayMask = SPAN_XY | SPAN_COVERAGE;

-   line.span.facing = swrast->PointLineFacing;

-   line.xAdj = line.dx / line.len * line.halfWidth;

-   line.yAdj = line.dy / line.len * line.halfWidth;

-

-#ifdef DO_Z

-   line.span.arrayMask |= SPAN_Z;

-   compute_plane(line.x0, line.y0, line.x1, line.y1,

-                 v0->attrib[FRAG_ATTRIB_WPOS][2], v1->attrib[FRAG_ATTRIB_WPOS][2], line.zPlane);

-#endif

-   line.span.arrayMask |= SPAN_RGBA;

-   if (ctx->Light.ShadeModel == GL_SMOOTH) {

-      compute_plane(line.x0, line.y0, line.x1, line.y1,

-                    v0->color[RCOMP], v1->color[RCOMP], line.rPlane);

-      compute_plane(line.x0, line.y0, line.x1, line.y1,

-                    v0->color[GCOMP], v1->color[GCOMP], line.gPlane);

-      compute_plane(line.x0, line.y0, line.x1, line.y1,

-                    v0->color[BCOMP], v1->color[BCOMP], line.bPlane);

-      compute_plane(line.x0, line.y0, line.x1, line.y1,

-                    v0->color[ACOMP], v1->color[ACOMP], line.aPlane);

-   }

-   else {

-      constant_plane(v1->color[RCOMP], line.rPlane);

-      constant_plane(v1->color[GCOMP], line.gPlane);

-      constant_plane(v1->color[BCOMP], line.bPlane);

-      constant_plane(v1->color[ACOMP], line.aPlane);

-   }

-#if defined(DO_ATTRIBS)

-   {

-      const GLfloat invW0 = v0->attrib[FRAG_ATTRIB_WPOS][3];

-      const GLfloat invW1 = v1->attrib[FRAG_ATTRIB_WPOS][3];

-      line.span.arrayMask |= SPAN_LAMBDA;

-      compute_plane(line.x0, line.y0, line.x1, line.y1, invW0, invW1, line.wPlane);

-      ATTRIB_LOOP_BEGIN

-         GLuint c;

-         if (swrast->_InterpMode[attr] == GL_FLAT) {

-            for (c = 0; c < 4; c++) {

-               constant_plane(v1->attrib[attr][c], line.attrPlane[attr][c]);

-            }

-         }

-         else {

-            for (c = 0; c < 4; c++) {

-               const GLfloat a0 = v0->attrib[attr][c] * invW0;

-               const GLfloat a1 = v1->attrib[attr][c] * invW1;

-               compute_plane(line.x0, line.y0, line.x1, line.y1, a0, a1,

-                             line.attrPlane[attr][c]);

-            }

-         }

-         line.span.arrayAttribs |= (1 << attr);

-         if (attr >= FRAG_ATTRIB_TEX0 && attr < FRAG_ATTRIB_VAR0) {

-            const GLuint u = attr - FRAG_ATTRIB_TEX0;

-            const struct gl_texture_object *obj = ctx->Texture.Unit[u]._Current;

-            const struct gl_texture_image *texImage = obj->Image[0][obj->BaseLevel];

-            line.texWidth[attr]  = (GLfloat) texImage->Width;

-            line.texHeight[attr] = (GLfloat) texImage->Height;

-         }

-      ATTRIB_LOOP_END

-   }

-#endif

-

-   tStart = tEnd = 0.0;

-   inSegment = GL_FALSE;

-   iLen = (GLint) line.len;

-

-   if (ctx->Line.StippleFlag) {

-      for (i = 0; i < iLen; i++) {

-         const GLuint bit = (swrast->StippleCounter / ctx->Line.StippleFactor) & 0xf;

-         if ((1 << bit) & ctx->Line.StipplePattern) {

-            /* stipple bit is on */

-            const GLfloat t = (GLfloat) i / (GLfloat) line.len;

-            if (!inSegment) {

-               /* start new segment */

-               inSegment = GL_TRUE;

-               tStart = t;

-            }

-            else {

-               /* still in the segment, extend it */

-               tEnd = t;

-            }

-         }

-         else {

-            /* stipple bit is off */

-            if (inSegment && (tEnd > tStart)) {

-               /* draw the segment */

-               segment(ctx, &line, NAME(plot), tStart, tEnd);

-               inSegment = GL_FALSE;

-            }

-            else {

-               /* still between segments, do nothing */

-            }

-         }

-         swrast->StippleCounter++;

-      }

-

-      if (inSegment) {

-         /* draw the final segment of the line */

-         segment(ctx, &line, NAME(plot), tStart, 1.0F);

-      }

-   }

-   else {

-      /* non-stippled */

-      segment(ctx, &line, NAME(plot), 0.0, 1.0);

-   }

-

-   _swrast_write_rgba_span(ctx, &(line.span));

-}

-

-

-

-

-#undef DO_Z

-#undef DO_ATTRIBS

-#undef NAME

+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * Antialiased line template.
+ */
+
+
+/*
+ * Function to render each fragment in the AA line.
+ * \param ix  - integer fragment window X coordiante
+ * \param iy  - integer fragment window Y coordiante
+ */
+static void
+NAME(plot)(struct gl_context *ctx, struct LineInfo *line, int ix, int iy)
+{
+   const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+   const GLfloat fx = (GLfloat) ix;
+   const GLfloat fy = (GLfloat) iy;
+   const GLfloat coverage = compute_coveragef(line, ix, iy);
+   const GLuint i = line->span.end;
+
+   (void) swrast;
+
+   if (coverage == 0.0)
+      return;
+
+   line->span.end++;
+   line->span.array->coverage[i] = coverage;
+   line->span.array->x[i] = ix;
+   line->span.array->y[i] = iy;
+
+   /*
+    * Compute Z, color, texture coords, fog for the fragment by
+    * solving the plane equations at (ix,iy).
+    */
+#ifdef DO_Z
+   line->span.array->z[i] = (GLuint) solve_plane(fx, fy, line->zPlane);
+#endif
+   line->span.array->rgba[i][RCOMP] = solve_plane_chan(fx, fy, line->rPlane);
+   line->span.array->rgba[i][GCOMP] = solve_plane_chan(fx, fy, line->gPlane);
+   line->span.array->rgba[i][BCOMP] = solve_plane_chan(fx, fy, line->bPlane);
+   line->span.array->rgba[i][ACOMP] = solve_plane_chan(fx, fy, line->aPlane);
+#if defined(DO_ATTRIBS)
+   ATTRIB_LOOP_BEGIN
+      GLfloat (*attribArray)[4] = line->span.array->attribs[attr];
+      if (attr >= FRAG_ATTRIB_TEX0 && attr < FRAG_ATTRIB_VAR0
+          && !ctx->FragmentProgram._Current) {
+         /* texcoord w/ divide by Q */
+         const GLuint unit = attr - FRAG_ATTRIB_TEX0;
+         const GLfloat invQ = solve_plane_recip(fx, fy, line->attrPlane[attr][3]);
+         GLuint c;
+         for (c = 0; c < 3; c++) {
+            attribArray[i][c] = solve_plane(fx, fy, line->attrPlane[attr][c]) * invQ;
+         }
+         line->span.array->lambda[unit][i]
+            = compute_lambda(line->attrPlane[attr][0],
+                             line->attrPlane[attr][1], invQ,
+                             line->texWidth[attr], line->texHeight[attr]);
+      }
+      else {
+         /* non-texture attrib */
+         const GLfloat invW = solve_plane_recip(fx, fy, line->wPlane);
+         GLuint c;
+         for (c = 0; c < 4; c++) {
+            attribArray[i][c] = solve_plane(fx, fy, line->attrPlane[attr][c]) * invW;
+         }
+      }
+   ATTRIB_LOOP_END
+#endif
+
+   if (line->span.end == MAX_WIDTH) {
+      _swrast_write_rgba_span(ctx, &(line->span));
+      line->span.end = 0; /* reset counter */
+   }
+}
+
+
+
+/*
+ * Line setup
+ */
+static void
+NAME(line)(struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1)
+{
+   SWcontext *swrast = SWRAST_CONTEXT(ctx);
+   GLfloat tStart, tEnd;   /* segment start, end along line length */
+   GLboolean inSegment;
+   GLint iLen, i;
+
+   /* Init the LineInfo struct */
+   struct LineInfo line;
+   line.x0 = v0->attrib[FRAG_ATTRIB_WPOS][0];
+   line.y0 = v0->attrib[FRAG_ATTRIB_WPOS][1];
+   line.x1 = v1->attrib[FRAG_ATTRIB_WPOS][0];
+   line.y1 = v1->attrib[FRAG_ATTRIB_WPOS][1];
+   line.dx = line.x1 - line.x0;
+   line.dy = line.y1 - line.y0;
+   line.len = SQRTF(line.dx * line.dx + line.dy * line.dy);
+   line.halfWidth = 0.5F * CLAMP(ctx->Line.Width,
+                                 ctx->Const.MinLineWidthAA,
+                                 ctx->Const.MaxLineWidthAA);
+
+   if (line.len == 0.0 || IS_INF_OR_NAN(line.len))
+      return;
+
+   INIT_SPAN(line.span, GL_LINE);
+   line.span.arrayMask = SPAN_XY | SPAN_COVERAGE;
+   line.span.facing = swrast->PointLineFacing;
+   line.xAdj = line.dx / line.len * line.halfWidth;
+   line.yAdj = line.dy / line.len * line.halfWidth;
+
+#ifdef DO_Z
+   line.span.arrayMask |= SPAN_Z;
+   compute_plane(line.x0, line.y0, line.x1, line.y1,
+                 v0->attrib[FRAG_ATTRIB_WPOS][2], v1->attrib[FRAG_ATTRIB_WPOS][2], line.zPlane);
+#endif
+   line.span.arrayMask |= SPAN_RGBA;
+   if (ctx->Light.ShadeModel == GL_SMOOTH) {
+      compute_plane(line.x0, line.y0, line.x1, line.y1,
+                    v0->color[RCOMP], v1->color[RCOMP], line.rPlane);
+      compute_plane(line.x0, line.y0, line.x1, line.y1,
+                    v0->color[GCOMP], v1->color[GCOMP], line.gPlane);
+      compute_plane(line.x0, line.y0, line.x1, line.y1,
+                    v0->color[BCOMP], v1->color[BCOMP], line.bPlane);
+      compute_plane(line.x0, line.y0, line.x1, line.y1,
+                    v0->color[ACOMP], v1->color[ACOMP], line.aPlane);
+   }
+   else {
+      constant_plane(v1->color[RCOMP], line.rPlane);
+      constant_plane(v1->color[GCOMP], line.gPlane);
+      constant_plane(v1->color[BCOMP], line.bPlane);
+      constant_plane(v1->color[ACOMP], line.aPlane);
+   }
+#if defined(DO_ATTRIBS)
+   {
+      const GLfloat invW0 = v0->attrib[FRAG_ATTRIB_WPOS][3];
+      const GLfloat invW1 = v1->attrib[FRAG_ATTRIB_WPOS][3];
+      line.span.arrayMask |= SPAN_LAMBDA;
+      compute_plane(line.x0, line.y0, line.x1, line.y1, invW0, invW1, line.wPlane);
+      ATTRIB_LOOP_BEGIN
+         GLuint c;
+         if (swrast->_InterpMode[attr] == GL_FLAT) {
+            for (c = 0; c < 4; c++) {
+               constant_plane(v1->attrib[attr][c], line.attrPlane[attr][c]);
+            }
+         }
+         else {
+            for (c = 0; c < 4; c++) {
+               const GLfloat a0 = v0->attrib[attr][c] * invW0;
+               const GLfloat a1 = v1->attrib[attr][c] * invW1;
+               compute_plane(line.x0, line.y0, line.x1, line.y1, a0, a1,
+                             line.attrPlane[attr][c]);
+            }
+         }
+         line.span.arrayAttribs |= BITFIELD64_BIT(attr);
+         if (attr >= FRAG_ATTRIB_TEX0 && attr < FRAG_ATTRIB_VAR0) {
+            const GLuint u = attr - FRAG_ATTRIB_TEX0;
+            const struct gl_texture_object *obj = ctx->Texture.Unit[u]._Current;
+            const struct gl_texture_image *texImage = obj->Image[0][obj->BaseLevel];
+            line.texWidth[attr]  = (GLfloat) texImage->Width;
+            line.texHeight[attr] = (GLfloat) texImage->Height;
+         }
+      ATTRIB_LOOP_END
+   }
+#endif
+
+   tStart = tEnd = 0.0;
+   inSegment = GL_FALSE;
+   iLen = (GLint) line.len;
+
+   if (ctx->Line.StippleFlag) {
+      for (i = 0; i < iLen; i++) {
+         const GLuint bit = (swrast->StippleCounter / ctx->Line.StippleFactor) & 0xf;
+         if ((1 << bit) & ctx->Line.StipplePattern) {
+            /* stipple bit is on */
+            const GLfloat t = (GLfloat) i / (GLfloat) line.len;
+            if (!inSegment) {
+               /* start new segment */
+               inSegment = GL_TRUE;
+               tStart = t;
+            }
+            else {
+               /* still in the segment, extend it */
+               tEnd = t;
+            }
+         }
+         else {
+            /* stipple bit is off */
+            if (inSegment && (tEnd > tStart)) {
+               /* draw the segment */
+               segment(ctx, &line, NAME(plot), tStart, tEnd);
+               inSegment = GL_FALSE;
+            }
+            else {
+               /* still between segments, do nothing */
+            }
+         }
+         swrast->StippleCounter++;
+      }
+
+      if (inSegment) {
+         /* draw the final segment of the line */
+         segment(ctx, &line, NAME(plot), tStart, 1.0F);
+      }
+   }
+   else {
+      /* non-stippled */
+      segment(ctx, &line, NAME(plot), 0.0, 1.0);
+   }
+
+   _swrast_write_rgba_span(ctx, &(line.span));
+}
+
+
+
+
+#undef DO_Z
+#undef DO_ATTRIBS
+#undef NAME
diff --git a/mesalib/src/mesa/swrast/s_context.c b/mesalib/src/mesa/swrast/s_context.c
index 94b7fe34d..06824ea2c 100644
--- a/mesalib/src/mesa/swrast/s_context.c
+++ b/mesalib/src/mesa/swrast/s_context.c
@@ -531,7 +531,7 @@ _swrast_update_active_attribs(struct gl_context *ctx)
    {
       GLuint i, num = 0;
       for (i = 0; i < FRAG_ATTRIB_MAX; i++) {
-         if (attribsMask & (1 << i)) {
+         if (attribsMask & BITFIELD64_BIT(i)) {
             swrast->_ActiveAttribs[num++] = i;
             /* how should this attribute be interpolated? */
             if (i == FRAG_ATTRIB_COL0 || i == FRAG_ATTRIB_COL1)
diff --git a/mesalib/src/mesa/swrast/s_span.c b/mesalib/src/mesa/swrast/s_span.c
index 689fe34ae..e89930353 100644
--- a/mesalib/src/mesa/swrast/s_span.c
+++ b/mesalib/src/mesa/swrast/s_span.c
@@ -175,7 +175,7 @@ interpolate_active_attribs(struct gl_context *ctx, SWspan *span,
    attrMask &= ~span->arrayAttribs;
 
    ATTRIB_LOOP_BEGIN
-      if (attrMask & (1 << attr)) {
+      if (attrMask & BITFIELD64_BIT(attr)) {
          const GLfloat dwdx = span->attrStepX[FRAG_ATTRIB_WPOS][3];
          GLfloat w = span->attrStart[FRAG_ATTRIB_WPOS][3];
          const GLfloat dv0dx = span->attrStepX[attr][0];
@@ -199,8 +199,8 @@ interpolate_active_attribs(struct gl_context *ctx, SWspan *span,
             v3 += dv3dx;
             w += dwdx;
          }
-         ASSERT((span->arrayAttribs & (1 << attr)) == 0);
-         span->arrayAttribs |= (1 << attr);
+         ASSERT((span->arrayAttribs & BITFIELD64_BIT(attr)) == 0);
+         span->arrayAttribs |= BITFIELD64_BIT(attr);
       }
    ATTRIB_LOOP_END
 }
diff --git a/mesalib/src/mesa/swrast/s_texture.c b/mesalib/src/mesa/swrast/s_texture.c
index ffd78a2b8..337a52f32 100644
--- a/mesalib/src/mesa/swrast/s_texture.c
+++ b/mesalib/src/mesa/swrast/s_texture.c
@@ -285,7 +285,7 @@ _swrast_map_textures(struct gl_context *ctx)
 
    /* loop over enabled texture units */
    while (enabledUnits) {
-      GLuint unit = _mesa_ffs(enabledUnits) - 1;
+      GLuint unit = ffs(enabledUnits) - 1;
       struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
       
       _swrast_map_texture(ctx, texObj);
@@ -305,7 +305,7 @@ _swrast_unmap_textures(struct gl_context *ctx)
 
    /* loop over enabled texture units */
    while (enabledUnits) {
-      GLuint unit = _mesa_ffs(enabledUnits) - 1;
+      GLuint unit = ffs(enabledUnits) - 1;
       struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
       
       _swrast_unmap_texture(ctx, texObj);
diff --git a/mesalib/src/mesa/tnl/t_draw.c b/mesalib/src/mesa/tnl/t_draw.c
index f949c34d3..17042cf8f 100644
--- a/mesalib/src/mesa/tnl/t_draw.c
+++ b/mesalib/src/mesa/tnl/t_draw.c
@@ -418,7 +418,7 @@ void _tnl_vbo_draw_prims(struct gl_context *ctx,
 			 struct gl_transform_feedback_object *tfb_vertcount)
 {
    if (!index_bounds_valid)
-      vbo_get_minmax_index(ctx, prim, ib, &min_index, &max_index);
+      vbo_get_minmax_indices(ctx, prim, ib, &min_index, &max_index, nr_prims);
 
    _tnl_draw_prims(ctx, arrays, prim, nr_prims, ib, min_index, max_index);
 }
diff --git a/mesalib/src/mesa/vbo/vbo.h b/mesalib/src/mesa/vbo/vbo.h
index ed8fc1722..bf925ab16 100644
--- a/mesalib/src/mesa/vbo/vbo.h
+++ b/mesalib/src/mesa/vbo/vbo.h
@@ -127,9 +127,9 @@ int
 vbo_sizeof_ib_type(GLenum type);
 
 void
-vbo_get_minmax_index(struct gl_context *ctx, const struct _mesa_prim *prim,
-		     const struct _mesa_index_buffer *ib,
-		     GLuint *min_index, GLuint *max_index);
+vbo_get_minmax_indices(struct gl_context *ctx, const struct _mesa_prim *prim,
+                       const struct _mesa_index_buffer *ib,
+                       GLuint *min_index, GLuint *max_index, GLuint nr_prims);
 
 void vbo_use_buffer_objects(struct gl_context *ctx);
 
diff --git a/mesalib/src/mesa/vbo/vbo_exec_array.c b/mesalib/src/mesa/vbo/vbo_exec_array.c
index fec49d35e..9861b21c9 100644
--- a/mesalib/src/mesa/vbo/vbo_exec_array.c
+++ b/mesalib/src/mesa/vbo/vbo_exec_array.c
@@ -99,24 +99,24 @@ vbo_sizeof_ib_type(GLenum type)
  * If primitive restart is enabled, we need to ignore restart
  * indexes when computing min/max.
  */
-void
+static void
 vbo_get_minmax_index(struct gl_context *ctx,
 		     const struct _mesa_prim *prim,
 		     const struct _mesa_index_buffer *ib,
-		     GLuint *min_index, GLuint *max_index)
+		     GLuint *min_index, GLuint *max_index,
+		     const GLuint count)
 {
    const GLboolean restart = ctx->Array.PrimitiveRestart;
    const GLuint restartIndex = ctx->Array.RestartIndex;
-   const GLuint count = prim->count;
-   const void *indices;
+   const int index_size = vbo_sizeof_ib_type(ib->type);
+   const char *indices;
    GLuint i;
 
+   indices = (char *) ib->ptr + prim->start * index_size;
    if (_mesa_is_bufferobj(ib->obj)) {
-      indices = ctx->Driver.MapBufferRange(ctx, (GLsizeiptr) ib->ptr,
-                                           count * vbo_sizeof_ib_type(ib->type),
-					   GL_MAP_READ_BIT, ib->obj);
-   } else {
-      indices = ib->ptr;
+      GLsizeiptr size = MIN2(count * index_size, ib->obj->Size);
+      indices = ctx->Driver.MapBufferRange(ctx, (GLintptr) indices, size,
+                                           GL_MAP_READ_BIT, ib->obj);
    }
 
    switch (ib->type) {
@@ -196,6 +196,41 @@ vbo_get_minmax_index(struct gl_context *ctx,
    }
 }
 
+/**
+ * Compute min and max elements for nr_prims
+ */
+void
+vbo_get_minmax_indices(struct gl_context *ctx,
+                       const struct _mesa_prim *prims,
+                       const struct _mesa_index_buffer *ib,
+                       GLuint *min_index,
+                       GLuint *max_index,
+                       GLuint nr_prims)
+{
+   GLuint tmp_min, tmp_max;
+   GLuint i;
+   GLuint count;
+
+   *min_index = ~0;
+   *max_index = 0;
+
+   for (i = 0; i < nr_prims; i++) {
+      const struct _mesa_prim *start_prim;
+
+      start_prim = &prims[i];
+      count = start_prim->count;
+      /* Do combination if possible to reduce map/unmap count */
+      while ((i + 1 < nr_prims) &&
+             (prims[i].start + prims[i].count == prims[i+1].start)) {
+         count += prims[i+1].count;
+         i++;
+      }
+      vbo_get_minmax_index(ctx, start_prim, ib, &tmp_min, &tmp_max, count);
+      *min_index = MIN2(*min_index, tmp_min);
+      *max_index = MAX2(*max_index, tmp_max);
+   }
+}
+
 
 /**
  * Check that element 'j' of the array has reasonable data.