Merge remote-tracking branch 'origin/released'

* origin/released:
  Opdated to openssl-1.0.1h xkeyboard-config fontconfig libX11 libxcb xcb-proto mesa xserver git update 26 June 2014

Conflicts:
	openssl/Makefile

76 files changed, 1863 insertions, 726 deletions

diff --git a/mesalib/src/gallium/Automake.inc b/mesalib/src/gallium/Automake.inc
index 97735abe0..8bf2a12e8 100644
--- a/mesalib/src/gallium/Automake.inc
+++ b/mesalib/src/gallium/Automake.inc
@@ -41,6 +41,7 @@ GALLIUM_DRI_CFLAGS = \
 
 GALLIUM_VIDEO_CFLAGS = \
 	-I$(top_srcdir)/include \
+	-I$(top_srcdir)/src/loader \
 	-I$(top_srcdir)/src/gallium/include \
 	-I$(top_srcdir)/src/gallium/auxiliary \
 	-I$(top_srcdir)/src/gallium/drivers \
@@ -58,22 +59,6 @@ GALLIUM_DRI_LINKER_FLAGS = \
 	-avoid-version \
 	$(GC_SECTIONS)
 
-GALLIUM_VDPAU_LINKER_FLAGS = \
-	-shared \
-	-module \
-	-no-undefined \
-	-version-number $(VDPAU_MAJOR):$(VDPAU_MINOR) \
-	$(GC_SECTIONS) \
-	$(LD_NO_UNDEFINED)
-
-GALLIUM_XVMC_LINKER_FLAGS = \
-	-shared \
-	-module \
-	-no-undefined \
-	-version-number $(XVMC_MAJOR):$(XVMC_MINOR) \
-	$(GC_SECTIONS) \
-	$(LD_NO_UNDEFINED)
-
 GALLIUM_OMX_LINKER_FLAGS = \
 	-shared \
 	-module \
@@ -86,12 +71,6 @@ if HAVE_LD_VERSION_SCRIPT
 GALLIUM_DRI_LINKER_FLAGS += \
 	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/dri.sym
 
-GALLIUM_VDPAU_LINKER_FLAGS += \
-	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/vdpau.sym
-
-GALLIUM_XVMC_LINKER_FLAGS += \
-	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/xvmc.sym
-
 GALLIUM_OMX_LINKER_FLAGS += \
 	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/omx.sym
 endif
@@ -111,20 +90,6 @@ GALLIUM_DRI_LIB_DEPS = \
 	$(EXPAT_LIBS) \
 	$(GALLIUM_COMMON_LIB_DEPS)
 
-GALLIUM_VDPAU_LIB_DEPS = \
-	$(top_builddir)/src/gallium/auxiliary/libgallium.la \
-	$(top_builddir)/src/gallium/state_trackers/vdpau/libvdpautracker.la \
-	$(VDPAU_LIBS) \
-	$(LIBDRM_LIBS) \
-	$(GALLIUM_COMMON_LIB_DEPS)
-
-GALLIUM_XVMC_LIB_DEPS = \
-	$(top_builddir)/src/gallium/auxiliary/libgallium.la \
-	$(top_builddir)/src/gallium/state_trackers/xvmc/libxvmctracker.la \
-	$(XVMC_LIBS) \
-	$(LIBDRM_LIBS) \
-	$(GALLIUM_COMMON_LIB_DEPS)
-
 GALLIUM_OMX_LIB_DEPS = \
 	$(top_builddir)/src/gallium/auxiliary/libgallium.la \
 	$(top_builddir)/src/gallium/state_trackers/omx/libomxtracker.la \
@@ -141,13 +106,25 @@ GALLIUM_WINSYS_CFLAGS = \
 if HAVE_MESA_LLVM
 
 GALLIUM_DRI_LINKER_FLAGS += $(LLVM_LDFLAGS)
-GALLIUM_VDPAU_LINKER_FLAGS += $(LLVM_LDFLAGS)
-GALLIUM_XVMC_LINKER_FLAGS += $(LLVM_LDFLAGS)
 GALLIUM_OMX_LINKER_FLAGS += $(LLVM_LDFLAGS)
 
 GALLIUM_DRI_LIB_DEPS += $(LLVM_LIBS)
-GALLIUM_VDPAU_LIB_DEPS += $(LLVM_LIBS)
-GALLIUM_XVMC_LIB_DEPS += $(LLVM_LIBS)
 GALLIUM_OMX_LIB_DEPS += $(LLVM_LIBS)
 
 endif
+
+
+GALLIUM_PIPE_LOADER_WINSYS_LIBS = \
+	$(top_builddir)/src/gallium/winsys/sw/null/libws_null.la
+
+if HAVE_DRISW
+GALLIUM_PIPE_LOADER_WINSYS_LIBS += \
+	$(top_builddir)/src/gallium/winsys/sw/dri/libswdri.la
+endif
+
+if NEED_WINSYS_XLIB
+GALLIUM_PIPE_LOADER_WINSYS_LIBS += \
+	$(top_builddir)/src/gallium/winsys/sw/xlib/libws_xlib.la \
+	-lX11 -lXext -lXfixes \
+	$(LIBDRM_LIBS)
+endif
diff --git a/mesalib/src/gallium/SConscript b/mesalib/src/gallium/SConscript
index 32bbdbe56..598b2f1ec 100644
--- a/mesalib/src/gallium/SConscript
+++ b/mesalib/src/gallium/SConscript
@@ -21,12 +21,6 @@ SConscript([
     'drivers/trace/SConscript',
 ])
 
-if not env['msvc']:
-    # These drivers do not build on MSVC compilers
-    SConscript([
-        'drivers/i915/SConscript',
-    ])
-
 #
 # State trackers
 #
@@ -66,11 +60,6 @@ if env['platform'] == 'windows':
         'winsys/sw/gdi/SConscript',
     ])
 
-if not env['msvc']:
-    SConscript([
-        'winsys/i915/sw/SConscript',
-    ])
-
 if env['platform'] == 'haiku':
     SConscript([
         'winsys/sw/hgl/SConscript',
@@ -85,11 +74,6 @@ if env['dri']:
         'winsys/svga/drm/SConscript',
     ])
 
-    if env['drm_intel']:
-        SConscript([
-            'winsys/i915/drm/SConscript',
-        ])
-
 #
 # Targets
 #
@@ -126,10 +110,6 @@ if not env['embedded']:
             'targets/dri-swrast/SConscript',
             'targets/dri-vmwgfx/SConscript',
         ])
-        if env['drm_intel']:
-            SConscript([
-                'targets/dri-i915/SConscript',
-            ])
 
 
 #
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.c b/mesalib/src/gallium/auxiliary/util/u_format.c
index 056f82f72..a53ed6f29 100644
--- a/mesalib/src/gallium/auxiliary/util/u_format.c
+++ b/mesalib/src/gallium/auxiliary/util/u_format.c
@@ -187,6 +187,17 @@ util_format_is_intensity(enum pipe_format format)
    return FALSE;
 }
 
+boolean
+util_format_is_subsampled_422(enum pipe_format format)
+{
+   const struct util_format_description *desc =
+      util_format_description(format);
+
+   return desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED &&
+      desc->block.width == 2 &&
+      desc->block.height == 1 &&
+      desc->block.bits == 32;
+}
 
 boolean
 util_format_is_supported(enum pipe_format format, unsigned bind)
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.h b/mesalib/src/gallium/auxiliary/util/u_format.h
index 1dd5d52f1..2e2bf0240 100644
--- a/mesalib/src/gallium/auxiliary/util/u_format.h
+++ b/mesalib/src/gallium/auxiliary/util/u_format.h
@@ -664,6 +664,9 @@ boolean
 util_format_is_intensity(enum pipe_format format);
 
 boolean
+util_format_is_subsampled_422(enum pipe_format format);
+
+boolean
 util_format_is_pure_integer(enum pipe_format format);
 
 boolean
diff --git a/mesalib/src/glsl/Makefile.sources b/mesalib/src/glsl/Makefile.sources
index 5945590a5..b54eae72d 100644
--- a/mesalib/src/glsl/Makefile.sources
+++ b/mesalib/src/glsl/Makefile.sources
@@ -96,6 +96,7 @@ LIBGLSL_FILES = \
 	$(GLSL_SRCDIR)/opt_function_inlining.cpp \
 	$(GLSL_SRCDIR)/opt_if_simplification.cpp \
 	$(GLSL_SRCDIR)/opt_noop_swizzle.cpp \
+	$(GLSL_SRCDIR)/opt_rebalance_tree.cpp \
 	$(GLSL_SRCDIR)/opt_redundant_jumps.cpp \
 	$(GLSL_SRCDIR)/opt_structure_splitting.cpp \
 	$(GLSL_SRCDIR)/opt_swizzle_swizzle.cpp \
diff --git a/mesalib/src/glsl/ast_to_hir.cpp b/mesalib/src/glsl/ast_to_hir.cpp
index d1c77f1ec..7ba04a808 100644
--- a/mesalib/src/glsl/ast_to_hir.cpp
+++ b/mesalib/src/glsl/ast_to_hir.cpp
@@ -49,7 +49,6 @@
  * parser (and lexer) sources.
  */
 
-#include "main/core.h" /* for struct gl_extensions */
 #include "glsl_symbol_table.h"
 #include "glsl_parser_extras.h"
 #include "ast.h"
@@ -2182,6 +2181,41 @@ validate_explicit_location(const struct ast_type_qualifier *qual,
 {
    bool fail = false;
 
+   /* Checks for GL_ARB_explicit_uniform_location. */
+   if (qual->flags.q.uniform) {
+      if (!state->check_explicit_uniform_location_allowed(loc, var))
+         return;
+
+      const struct gl_context *const ctx = state->ctx;
+      unsigned max_loc = qual->location + var->type->uniform_locations() - 1;
+
+      /* ARB_explicit_uniform_location specification states:
+       *
+       *     "The explicitly defined locations and the generated locations
+       *     must be in the range of 0 to MAX_UNIFORM_LOCATIONS minus one."
+       *
+       *     "Valid locations for default-block uniform variable locations
+       *     are in the range of 0 to the implementation-defined maximum
+       *     number of uniform locations."
+       */
+      if (qual->location < 0) {
+         _mesa_glsl_error(loc, state,
+                          "explicit location < 0 for uniform %s", var->name);
+         return;
+      }
+
+      if (max_loc >= ctx->Const.MaxUserAssignableUniformLocations) {
+         _mesa_glsl_error(loc, state, "location(s) consumed by uniform %s "
+                          ">= MAX_UNIFORM_LOCATIONS (%u)", var->name,
+                          ctx->Const.MaxUserAssignableUniformLocations);
+         return;
+      }
+
+      var->data.explicit_location = true;
+      var->data.location = qual->location;
+      return;
+   }
+
    /* Between GL_ARB_explicit_attrib_location an
     * GL_ARB_separate_shader_objects, the inputs and outputs of any shader
     * stage can be assigned explicit locations.  The checking here associates
@@ -2435,6 +2469,13 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual,
                        _mesa_shader_stage_to_string(state->stage));
    }
 
+   /* Disallow layout qualifiers which may only appear on layout declarations. */
+   if (qual->flags.q.prim_type) {
+      _mesa_glsl_error(loc, state,
+                       "Primitive type may only be specified on GS input or output "
+                       "layout declaration, not on variables.");
+   }
+
    /* Section 6.1.1 (Function Calling Conventions) of the GLSL 1.10 spec says:
     *
     *     "However, the const qualifier cannot be used with out or inout."
@@ -2649,6 +2690,36 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual,
    const bool uses_deprecated_qualifier = qual->flags.q.attribute
       || qual->flags.q.varying;
 
+
+   /* Validate auxiliary storage qualifiers */
+
+   /* From section 4.3.4 of the GLSL 1.30 spec:
+    *    "It is an error to use centroid in in a vertex shader."
+    *
+    * From section 4.3.4 of the GLSL ES 3.00 spec:
+    *    "It is an error to use centroid in or interpolation qualifiers in
+    *    a vertex shader input."
+    */
+
+   /* Section 4.3.6 of the GLSL 1.30 specification states:
+    * "It is an error to use centroid out in a fragment shader."
+    *
+    * The GL_ARB_shading_language_420pack extension specification states:
+    * "It is an error to use auxiliary storage qualifiers or interpolation
+    *  qualifiers on an output in a fragment shader."
+    */
+   if (qual->flags.q.sample && (!is_varying_var(var, state->stage) || uses_deprecated_qualifier)) {
+      _mesa_glsl_error(loc, state,
+                       "sample qualifier may only be used on `in` or `out` "
+                       "variables between shader stages");
+   }
+   if (qual->flags.q.centroid && !is_varying_var(var, state->stage)) {
+      _mesa_glsl_error(loc, state,
+                       "centroid qualifier may only be used with `in', "
+                       "`out' or `varying' variables between shader stages");
+   }
+
+
    /* Is the 'layout' keyword used with parameters that allow relaxed checking.
     * Many implementations of GL_ARB_fragment_coord_conventions_enable and some
     * implementations (only Mesa?) GL_ARB_explicit_attrib_location_enable
@@ -3606,45 +3677,6 @@ ast_declarator_list::hir(exec_list *instructions,
       }
 
 
-      /* From section 4.3.4 of the GLSL 1.30 spec:
-       *    "It is an error to use centroid in in a vertex shader."
-       *
-       * From section 4.3.4 of the GLSL ES 3.00 spec:
-       *    "It is an error to use centroid in or interpolation qualifiers in
-       *    a vertex shader input."
-       */
-      if (state->is_version(130, 300)
-          && this->type->qualifier.flags.q.centroid
-          && this->type->qualifier.flags.q.in
-          && state->stage == MESA_SHADER_VERTEX) {
-
-         _mesa_glsl_error(&loc, state,
-                          "'centroid in' cannot be used in a vertex shader");
-      }
-
-      if (state->stage == MESA_SHADER_VERTEX
-          && this->type->qualifier.flags.q.sample
-          && this->type->qualifier.flags.q.in) {
-
-         _mesa_glsl_error(&loc, state,
-                        "'sample in' cannot be used in a vertex shader");
-      }
-
-      /* Section 4.3.6 of the GLSL 1.30 specification states:
-       * "It is an error to use centroid out in a fragment shader."
-       *
-       * The GL_ARB_shading_language_420pack extension specification states:
-       * "It is an error to use auxiliary storage qualifiers or interpolation
-       *  qualifiers on an output in a fragment shader."
-       */
-      if (state->stage == MESA_SHADER_FRAGMENT &&
-          this->type->qualifier.flags.q.out &&
-          this->type->qualifier.has_auxiliary_storage()) {
-         _mesa_glsl_error(&loc, state,
-                          "auxiliary storage qualifiers cannot be used on "
-                          "fragment shader outputs");
-      }
-
       /* Precision qualifiers exists only in GLSL versions 1.00 and >= 1.30.
        */
       if (this->type->qualifier.precision != ast_precision_none) {
@@ -4632,9 +4664,51 @@ ast_case_label::hir(exec_list *instructions,
       ir_dereference_variable *deref_test_var =
          new(ctx) ir_dereference_variable(state->switch_state.test_var);
 
-      ir_rvalue *const test_cond = new(ctx) ir_expression(ir_binop_all_equal,
-                                                          label_const,
-                                                          deref_test_var);
+      ir_expression *test_cond = new(ctx) ir_expression(ir_binop_all_equal,
+                                                        label_const,
+                                                        deref_test_var);
+
+      /*
+       * From GLSL 4.40 specification section 6.2 ("Selection"):
+       *
+       *     "The type of the init-expression value in a switch statement must
+       *     be a scalar int or uint. The type of the constant-expression value
+       *     in a case label also must be a scalar int or uint. When any pair
+       *     of these values is tested for "equal value" and the types do not
+       *     match, an implicit conversion will be done to convert the int to a
+       *     uint (see section 4.1.10 “Implicit Conversions”) before the compare
+       *     is done."
+       */
+      if (label_const->type != state->switch_state.test_var->type) {
+         YYLTYPE loc = this->test_value->get_location();
+
+         const glsl_type *type_a = label_const->type;
+         const glsl_type *type_b = state->switch_state.test_var->type;
+
+         /* Check if int->uint implicit conversion is supported. */
+         bool integer_conversion_supported =
+            glsl_type::int_type->can_implicitly_convert_to(glsl_type::uint_type,
+                                                           state);
+
+         if ((!type_a->is_integer() || !type_b->is_integer()) ||
+              !integer_conversion_supported) {
+            _mesa_glsl_error(&loc, state, "type mismatch with switch "
+                             "init-expression and case label (%s != %s)",
+                             type_a->name, type_b->name);
+         } else {
+            /* Conversion of the case label. */
+            if (type_a->base_type == GLSL_TYPE_INT) {
+               if (!apply_implicit_conversion(glsl_type::uint_type,
+                                              test_cond->operands[0], state))
+                  _mesa_glsl_error(&loc, state, "implicit type conversion error");
+            } else {
+               /* Conversion of the init-expression value. */
+               if (!apply_implicit_conversion(glsl_type::uint_type,
+                                              test_cond->operands[1], state))
+                  _mesa_glsl_error(&loc, state, "implicit type conversion error");
+            }
+         }
+      }
 
       ir_assignment *set_fallthru_on_test =
          new(ctx) ir_assignment(deref_fallthru_var, true_val, test_cond);
@@ -5041,6 +5115,13 @@ ast_process_structure_or_interface_block(exec_list *instructions,
                              "with uniform interface blocks");
          }
 
+         if ((qual->flags.q.uniform || !is_interface) &&
+             qual->has_auxiliary_storage()) {
+            _mesa_glsl_error(&loc, state,
+                             "auxiliary storage qualifiers cannot be used "
+                             "in uniform blocks or structures.");
+         }
+
          if (field_type->is_matrix() ||
              (field_type->is_array() && field_type->fields.array->is_matrix())) {
             fields[i].row_major = block_row_major;
@@ -5090,7 +5171,7 @@ ast_struct_specifier::hir(exec_list *instructions,
     */
    if (state->language_version != 110 && state->struct_specifier_depth != 0)
       _mesa_glsl_error(&loc, state,
-		       "embedded structure declartions are not allowed");
+		       "embedded structure declarations are not allowed");
 
    state->struct_specifier_depth++;
 
@@ -5206,6 +5287,12 @@ ast_interface_block::hir(exec_list *instructions,
    bool block_row_major = this->layout.flags.q.row_major;
    exec_list declared_variables;
    glsl_struct_field *fields;
+
+   /* Treat an interface block as one level of nesting, so that embedded struct
+    * specifiers will be disallowed.
+    */
+   state->struct_specifier_depth++;
+
    unsigned int num_variables =
       ast_process_structure_or_interface_block(&declared_variables,
                                                state,
@@ -5217,6 +5304,8 @@ ast_interface_block::hir(exec_list *instructions,
                                                redeclaring_per_vertex,
                                                var_mode);
 
+   state->struct_specifier_depth--;
+
    if (!redeclaring_per_vertex)
       validate_identifier(this->block_name, loc, state);
 
diff --git a/mesalib/src/glsl/ast_type.cpp b/mesalib/src/glsl/ast_type.cpp
index 0ee2c495a..77053d5b1 100644
--- a/mesalib/src/glsl/ast_type.cpp
+++ b/mesalib/src/glsl/ast_type.cpp
@@ -247,7 +247,7 @@ ast_type_qualifier::merge_in_qualifier(YYLTYPE *loc,
          q.flags.q.local_size != 0 &&
          state->in_qualifier->flags.q.local_size == 0;
 
-      valid_in_mask.flags.q.local_size = 1;
+      valid_in_mask.flags.q.local_size = 7;
       break;
    default:
       _mesa_glsl_error(loc, state,
diff --git a/mesalib/src/glsl/builtin_variables.cpp b/mesalib/src/glsl/builtin_variables.cpp
index 9b35850ee..b9c69d23c 100644
--- a/mesalib/src/glsl/builtin_variables.cpp
+++ b/mesalib/src/glsl/builtin_variables.cpp
@@ -26,7 +26,6 @@
 #include "glsl_symbol_table.h"
 #include "main/core.h"
 #include "main/uniforms.h"
-#include "program/prog_parameter.h"
 #include "program/prog_statevars.h"
 #include "program/prog_instruction.h"
 
@@ -939,6 +938,11 @@ builtin_variable_generator::generate_fs_special_vars()
    if (state->ARB_gpu_shader5_enable) {
       add_system_value(SYSTEM_VALUE_SAMPLE_MASK_IN, array(int_t, 1), "gl_SampleMaskIn");
    }
+
+   if (state->ARB_fragment_layer_viewport_enable) {
+      add_input(VARYING_SLOT_LAYER, int_t, "gl_Layer");
+      add_input(VARYING_SLOT_VIEWPORT, int_t, "gl_ViewportIndex");
+   }
 }
 
 
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.y b/mesalib/src/glsl/glcpp/glcpp-parse.y
index 98875837c..d8c395778 100644
--- a/mesalib/src/glsl/glcpp/glcpp-parse.y
+++ b/mesalib/src/glsl/glcpp/glcpp-parse.y
@@ -2086,9 +2086,15 @@ _glcpp_parser_handle_version_declaration(glcpp_parser_t *parser, intmax_t versio
 	         add_builtin_define(parser, "GL_ARB_fragment_coord_conventions",
 				    1);
 
+              if (extensions->ARB_fragment_layer_viewport)
+                 add_builtin_define(parser, "GL_ARB_fragment_layer_viewport", 1);
+
 	      if (extensions->ARB_explicit_attrib_location)
 	         add_builtin_define(parser, "GL_ARB_explicit_attrib_location", 1);
 
+	      if (extensions->ARB_explicit_uniform_location)
+	         add_builtin_define(parser, "GL_ARB_explicit_uniform_location", 1);
+
 	      if (extensions->ARB_shader_texture_lod)
 	         add_builtin_define(parser, "GL_ARB_shader_texture_lod", 1);
 
diff --git a/mesalib/src/glsl/glsl_lexer.ll b/mesalib/src/glsl/glsl_lexer.ll
index 6c3f9b692..db7b1d179 100644
--- a/mesalib/src/glsl/glsl_lexer.ll
+++ b/mesalib/src/glsl/glsl_lexer.ll
@@ -396,6 +396,7 @@ layout		{
 		      || yyextra->AMD_conservative_depth_enable
 		      || yyextra->ARB_conservative_depth_enable
 		      || yyextra->ARB_explicit_attrib_location_enable
+		      || yyextra->ARB_explicit_uniform_location_enable
                       || yyextra->has_separate_shader_objects()
 		      || yyextra->ARB_uniform_buffer_object_enable
 		      || yyextra->ARB_fragment_coord_conventions_enable
diff --git a/mesalib/src/glsl/glsl_parser.yy b/mesalib/src/glsl/glsl_parser.yy
index b69802ddb..2b2de3047 100644
--- a/mesalib/src/glsl/glsl_parser.yy
+++ b/mesalib/src/glsl/glsl_parser.yy
@@ -1559,11 +1559,6 @@ type_qualifier:
       if ($2.flags.q.invariant)
          _mesa_glsl_error(&@1, state, "duplicate \"invariant\" qualifier");
 
-      if ($2.has_layout()) {
-         _mesa_glsl_error(&@1, state,
-                          "\"invariant\" cannot be used with layout(...)");
-      }
-
       if (!state->ARB_shading_language_420pack_enable && $2.flags.q.precise)
          _mesa_glsl_error(&@1, state,
                           "\"invariant\" must come after \"precise\"");
@@ -1586,11 +1581,6 @@ type_qualifier:
       if ($2.has_interpolation())
          _mesa_glsl_error(&@1, state, "duplicate interpolation qualifier");
 
-      if ($2.has_layout()) {
-         _mesa_glsl_error(&@1, state, "interpolation qualifiers cannot be used "
-                          "with layout(...)");
-      }
-
       if (!state->ARB_shading_language_420pack_enable &&
           ($2.flags.q.precise || $2.flags.q.invariant)) {
          _mesa_glsl_error(&@1, state, "interpolation qualifiers must come "
@@ -1602,28 +1592,18 @@ type_qualifier:
    }
    | layout_qualifier type_qualifier
    {
-      /* The GLSL 1.50 grammar indicates that a layout(...) declaration can be
-       * used standalone or immediately before a storage qualifier.  It cannot
-       * be used with interpolation qualifiers or invariant.  There does not
-       * appear to be any text indicating that it must come before the storage
-       * qualifier, but always seems to in examples.
+      /* In the absence of ARB_shading_language_420pack, layout qualifiers may
+       * appear no later than auxiliary storage qualifiers. There is no
+       * particularly clear spec language mandating this, but in all examples
+       * the layout qualifier precedes the storage qualifier.
+       *
+       * We allow combinations of layout with interpolation, invariant or
+       * precise qualifiers since these are useful in ARB_separate_shader_objects.
+       * There is no clear spec guidance on this either.
        */
       if (!state->ARB_shading_language_420pack_enable && $2.has_layout())
          _mesa_glsl_error(&@1, state, "duplicate layout(...) qualifiers");
 
-      if ($2.flags.q.invariant)
-         _mesa_glsl_error(&@1, state, "layout(...) cannot be used with "
-                          "the \"invariant\" qualifier");
-
-      if ($2.flags.q.precise)
-         _mesa_glsl_error(&@1, state, "layout(...) cannot be used with "
-                          "the \"precise\" qualifier");
-
-      if ($2.has_interpolation()) {
-         _mesa_glsl_error(&@1, state, "layout(...) cannot be used with "
-                          "interpolation qualifiers");
-      }
-
       $$ = $1;
       $$.merge_qualifier(&@1, state, $2);
    }
@@ -2181,7 +2161,7 @@ condition:
    ;
 
 /*
- * siwtch_statement grammar is based on the syntax described in the body
+ * switch_statement grammar is based on the syntax described in the body
  * of the GLSL spec, not in it's appendix!!!
  */
 switch_statement:
diff --git a/mesalib/src/glsl/glsl_parser_extras.cpp b/mesalib/src/glsl/glsl_parser_extras.cpp
index f3c5bd049..11a9a4320 100644
--- a/mesalib/src/glsl/glsl_parser_extras.cpp
+++ b/mesalib/src/glsl/glsl_parser_extras.cpp
@@ -515,7 +515,9 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
    EXT(ARB_draw_buffers,               true,  false,     dummy_true),
    EXT(ARB_draw_instanced,             true,  false,     ARB_draw_instanced),
    EXT(ARB_explicit_attrib_location,   true,  false,     ARB_explicit_attrib_location),
+   EXT(ARB_explicit_uniform_location,  true,  false,     ARB_explicit_uniform_location),
    EXT(ARB_fragment_coord_conventions, true,  false,     ARB_fragment_coord_conventions),
+   EXT(ARB_fragment_layer_viewport,    true,  false,     ARB_fragment_layer_viewport),
    EXT(ARB_gpu_shader5,                true,  false,     ARB_gpu_shader5),
    EXT(ARB_sample_shading,             true,  false,     ARB_sample_shading),
    EXT(ARB_separate_shader_objects,    true,  false,     dummy_true),
@@ -1568,7 +1570,8 @@ do_common_optimization(exec_list *ir, bool linked,
       progress = do_constant_variable_unlinked(ir) || progress;
    progress = do_constant_folding(ir) || progress;
    progress = do_cse(ir) || progress;
-   progress = do_algebraic(ir, native_integers) || progress;
+   progress = do_rebalance_tree(ir) || progress;
+   progress = do_algebraic(ir, native_integers, options) || progress;
    progress = do_lower_jumps(ir) || progress;
    progress = do_vec_index_to_swizzle(ir) || progress;
    progress = lower_vector_insert(ir, false) || progress;
diff --git a/mesalib/src/glsl/glsl_parser_extras.h b/mesalib/src/glsl/glsl_parser_extras.h
index 49402fa21..2a5aea477 100644
--- a/mesalib/src/glsl/glsl_parser_extras.h
+++ b/mesalib/src/glsl/glsl_parser_extras.h
@@ -155,6 +155,21 @@ struct _mesa_glsl_parse_state {
       return true;
    }
 
+   bool check_explicit_uniform_location_allowed(YYLTYPE *locp,
+                                                const ir_variable *)
+   {
+      if (!this->has_explicit_attrib_location() ||
+          !this->ARB_explicit_uniform_location_enable) {
+         _mesa_glsl_error(locp, this,
+                          "uniform explicit location requires "
+                          "GL_ARB_explicit_uniform_location and either "
+                          "GL_ARB_explicit_attrib_location or GLSL 330.");
+         return false;
+      }
+
+      return true;
+   }
+
    bool has_explicit_attrib_location() const
    {
       return ARB_explicit_attrib_location_enable || is_version(330, 300);
@@ -192,7 +207,7 @@ struct _mesa_glsl_parse_state {
    /**
     * Number of nested struct_specifier levels
     *
-    * Outside a struct_specifer, this is zero.
+    * Outside a struct_specifier, this is zero.
     */
    unsigned struct_specifier_depth;
 
@@ -367,8 +382,12 @@ struct _mesa_glsl_parse_state {
    bool ARB_draw_instanced_warn;
    bool ARB_explicit_attrib_location_enable;
    bool ARB_explicit_attrib_location_warn;
+   bool ARB_explicit_uniform_location_enable;
+   bool ARB_explicit_uniform_location_warn;
    bool ARB_fragment_coord_conventions_enable;
    bool ARB_fragment_coord_conventions_warn;
+   bool ARB_fragment_layer_viewport_enable;
+   bool ARB_fragment_layer_viewport_warn;
    bool ARB_gpu_shader5_enable;
    bool ARB_gpu_shader5_warn;
    bool ARB_sample_shading_enable;
diff --git a/mesalib/src/glsl/glsl_symbol_table.h b/mesalib/src/glsl/glsl_symbol_table.h
index 83d7935d8..db8863a20 100644
--- a/mesalib/src/glsl/glsl_symbol_table.h
+++ b/mesalib/src/glsl/glsl_symbol_table.h
@@ -32,9 +32,9 @@ extern "C" {
 #include "program/symbol_table.h"
 }
 #include "ir.h"
-#include "glsl_types.h"
 
 class symbol_table_entry;
+struct glsl_type;
 
 /**
  * Facade class for _mesa_symbol_table
diff --git a/mesalib/src/glsl/glsl_types.cpp b/mesalib/src/glsl/glsl_types.cpp
index e77146cdf..f9cd258fe 100644
--- a/mesalib/src/glsl/glsl_types.cpp
+++ b/mesalib/src/glsl/glsl_types.cpp
@@ -22,9 +22,7 @@
  */
 
 #include <stdio.h>
-#include <stdlib.h>
-#include "main/core.h" /* for Elements */
-#include "glsl_symbol_table.h"
+#include "main/core.h" /* for Elements, MAX2 */
 #include "glsl_parser_extras.h"
 #include "glsl_types.h"
 extern "C" {
@@ -677,6 +675,32 @@ glsl_type::component_slots() const
    return 0;
 }
 
+unsigned
+glsl_type::uniform_locations() const
+{
+   if (this->is_matrix())
+      return 1;
+
+   unsigned size = 0;
+
+   switch (this->base_type) {
+   case GLSL_TYPE_STRUCT:
+   case GLSL_TYPE_INTERFACE:
+      for (unsigned i = 0; i < this->length; i++)
+         size += this->fields.structure[i].type->uniform_locations();
+      return size;
+   case GLSL_TYPE_ARRAY:
+      return this->length * this->fields.array->uniform_locations();
+   default:
+      break;
+   }
+
+   /* The location count for many types match with component_slots() result,
+    * all expections should be handled above.
+    */
+   return component_slots();
+}
+
 bool
 glsl_type::can_implicitly_convert_to(const glsl_type *desired,
                                      _mesa_glsl_parse_state *state) const
diff --git a/mesalib/src/glsl/glsl_types.h b/mesalib/src/glsl/glsl_types.h
index 35a4e6acc..f6d4a02ab 100644
--- a/mesalib/src/glsl/glsl_types.h
+++ b/mesalib/src/glsl/glsl_types.h
@@ -256,6 +256,12 @@ struct glsl_type {
    unsigned component_slots() const;
 
    /**
+    * Calculate the number of unique values from glGetUniformLocation for the
+    * elements of the type.
+    */
+   unsigned uniform_locations() const;
+
+   /**
     * Calculate the number of attribute slots required to hold this type
     *
     * This implements the language rules of GLSL 1.50 for counting the number
diff --git a/mesalib/src/glsl/hir_field_selection.cpp b/mesalib/src/glsl/hir_field_selection.cpp
index 1e92c89ae..0fa976811 100644
--- a/mesalib/src/glsl/hir_field_selection.cpp
+++ b/mesalib/src/glsl/hir_field_selection.cpp
@@ -22,7 +22,6 @@
  */
 
 #include "ir.h"
-#include "program/symbol_table.h"
 #include "glsl_parser_extras.h"
 #include "ast.h"
 #include "glsl_types.h"
diff --git a/mesalib/src/glsl/ir.cpp b/mesalib/src/glsl/ir.cpp
index 2f4a0bec8..67dbac1eb 100644
--- a/mesalib/src/glsl/ir.cpp
+++ b/mesalib/src/glsl/ir.cpp
@@ -23,7 +23,6 @@
 #include <string.h>
 #include "main/core.h" /* for MAX2 */
 #include "ir.h"
-#include "ir_visitor.h"
 #include "glsl_types.h"
 
 ir_rvalue::ir_rvalue(enum ir_node_type t)
diff --git a/mesalib/src/glsl/ir_basic_block.cpp b/mesalib/src/glsl/ir_basic_block.cpp
index 426fda2f2..74ee4b696 100644
--- a/mesalib/src/glsl/ir_basic_block.cpp
+++ b/mesalib/src/glsl/ir_basic_block.cpp
@@ -28,9 +28,7 @@
  */
 
 #include "ir.h"
-#include "ir_visitor.h"
 #include "ir_basic_block.h"
-#include "glsl_types.h"
 
 /**
  * Calls a user function for every basic block in the instruction stream.
diff --git a/mesalib/src/glsl/ir_constant_expression.cpp b/mesalib/src/glsl/ir_constant_expression.cpp
index f5cb12343..73380d243 100755
--- a/mesalib/src/glsl/ir_constant_expression.cpp
+++ b/mesalib/src/glsl/ir_constant_expression.cpp
@@ -36,7 +36,6 @@
 #include <math.h>
 #include "main/core.h" /* for MAX2, MIN2, CLAMP */
 #include "ir.h"
-#include "ir_visitor.h"
 #include "glsl_types.h"
 #include "program/hash_table.h"
 
diff --git a/mesalib/src/glsl/ir_expression_flattening.cpp b/mesalib/src/glsl/ir_expression_flattening.cpp
index c1cadb122..0b1ada519 100644
--- a/mesalib/src/glsl/ir_expression_flattening.cpp
+++ b/mesalib/src/glsl/ir_expression_flattening.cpp
@@ -32,10 +32,8 @@
  */
 
 #include "ir.h"
-#include "ir_visitor.h"
 #include "ir_rvalue_visitor.h"
 #include "ir_expression_flattening.h"
-#include "glsl_types.h"
 
 class ir_expression_flattening_visitor : public ir_rvalue_visitor {
 public:
diff --git a/mesalib/src/glsl/ir_optimization.h b/mesalib/src/glsl/ir_optimization.h
index c63921c26..b83c22592 100644
--- a/mesalib/src/glsl/ir_optimization.h
+++ b/mesalib/src/glsl/ir_optimization.h
@@ -71,7 +71,9 @@ bool do_common_optimization(exec_list *ir, bool linked,
                             const struct gl_shader_compiler_options *options,
                             bool native_integers);
 
-bool do_algebraic(exec_list *instructions, bool native_integers);
+bool do_rebalance_tree(exec_list *instructions);
+bool do_algebraic(exec_list *instructions, bool native_integers,
+                  const struct gl_shader_compiler_options *options);
 bool do_constant_folding(exec_list *instructions);
 bool do_constant_variable(exec_list *instructions);
 bool do_constant_variable_unlinked(exec_list *instructions);
diff --git a/mesalib/src/glsl/ir_uniform.h b/mesalib/src/glsl/ir_uniform.h
index 3508509d4..2f7352825 100644
--- a/mesalib/src/glsl/ir_uniform.h
+++ b/mesalib/src/glsl/ir_uniform.h
@@ -32,12 +32,17 @@
 
 #include "program/prog_parameter.h"  /* For union gl_constant_value. */
 
+/**
+ * Used by GL_ARB_explicit_uniform_location extension code in the linker
+ * and glUniform* functions to identify inactive explicit uniform locations.
+ */
+#define INACTIVE_UNIFORM_EXPLICIT_LOCATION ((gl_uniform_storage *) -1)
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-enum gl_uniform_driver_format {
+enum PACKED gl_uniform_driver_format {
    uniform_native = 0,          /**< Store data in the native format. */
    uniform_int_float,           /**< Store integer data as floats. */
    uniform_bool_float,          /**< Store boolean data as floats. */
@@ -66,11 +71,8 @@ struct gl_uniform_driver_storage {
 
    /**
     * Base format of the stored data.
-    *
-    * This field must have a value from \c GLSL_TYPE_UINT through \c
-    * GLSL_TYPE_SAMPLER.
     */
-   uint8_t format;
+   enum gl_uniform_driver_format format;
 
    /**
     * Pointer to the base of the data.
diff --git a/mesalib/src/glsl/link_uniform_block_active_visitor.h b/mesalib/src/glsl/link_uniform_block_active_visitor.h
index d76dbcaf1..524cd6b91 100644
--- a/mesalib/src/glsl/link_uniform_block_active_visitor.h
+++ b/mesalib/src/glsl/link_uniform_block_active_visitor.h
@@ -26,8 +26,6 @@
 #define LINK_UNIFORM_BLOCK_ACTIVE_VISITOR_H
 
 #include "ir.h"
-#include "ir_visitor.h"
-#include "glsl_types.h"
 #include "main/hash_table.h"
 
 struct link_uniform_block_active {
diff --git a/mesalib/src/glsl/link_uniform_initializers.cpp b/mesalib/src/glsl/link_uniform_initializers.cpp
index 2100e0517..d755cec98 100644
--- a/mesalib/src/glsl/link_uniform_initializers.cpp
+++ b/mesalib/src/glsl/link_uniform_initializers.cpp
@@ -25,8 +25,6 @@
 #include "ir.h"
 #include "linker.h"
 #include "ir_uniform.h"
-#include "glsl_symbol_table.h"
-#include "program/hash_table.h"
 
 /* These functions are put in a "private" namespace instead of being marked
  * static so that the unit tests can access them.  See
diff --git a/mesalib/src/glsl/link_uniforms.cpp b/mesalib/src/glsl/link_uniforms.cpp
index 377fed64a..5dcb7b571 100644
--- a/mesalib/src/glsl/link_uniforms.cpp
+++ b/mesalib/src/glsl/link_uniforms.cpp
@@ -37,6 +37,11 @@
  */
 
 /**
+ * Used by linker to indicate uniforms that have no location set.
+ */
+#define UNMAPPED_UNIFORM_LOC ~0u
+
+/**
  * Count the backing storage requirements for a type
  */
 static unsigned
@@ -386,6 +391,9 @@ public:
    void set_and_process(struct gl_shader_program *prog,
 			ir_variable *var)
    {
+      current_var = var;
+      field_counter = 0;
+
       ubo_block_index = -1;
       if (var->is_in_uniform_block()) {
          if (var->is_interface_instance() && var->type->is_array()) {
@@ -542,6 +550,22 @@ private:
          return;
       }
 
+      /* Assign explicit locations. */
+      if (current_var->data.explicit_location) {
+         /* Set sequential locations for struct fields. */
+         if (record_type != NULL) {
+            const unsigned entries = MAX2(1, this->uniforms[id].array_elements);
+            this->uniforms[id].remap_location =
+               current_var->data.location + field_counter;
+            field_counter += entries;
+         } else {
+            this->uniforms[id].remap_location = current_var->data.location;
+         }
+      } else {
+         /* Initialize to to indicate that no location is set */
+         this->uniforms[id].remap_location = UNMAPPED_UNIFORM_LOC;
+      }
+
       this->uniforms[id].name = ralloc_strdup(this->uniforms, name);
       this->uniforms[id].type = base_type;
       this->uniforms[id].initialized = 0;
@@ -597,6 +621,17 @@ public:
    gl_texture_index targets[MAX_SAMPLERS];
 
    /**
+    * Current variable being processed.
+    */
+   ir_variable *current_var;
+
+   /**
+    * Field counter is used to take care that uniform structures
+    * with explicit locations get sequential locations.
+    */
+   unsigned field_counter;
+
+   /**
     * Mask of samplers used by the current shader stage.
     */
    unsigned shader_samplers_used;
@@ -798,10 +833,6 @@ link_assign_uniform_locations(struct gl_shader_program *prog)
    prog->UniformStorage = NULL;
    prog->NumUserUniformStorage = 0;
 
-   ralloc_free(prog->UniformRemapTable);
-   prog->UniformRemapTable = NULL;
-   prog->NumUniformRemapTable = 0;
-
    if (prog->UniformHash != NULL) {
       prog->UniformHash->clear();
    } else {
@@ -914,8 +945,28 @@ link_assign_uniform_locations(struct gl_shader_program *prog)
              sizeof(prog->_LinkedShaders[i]->SamplerTargets));
    }
 
-   /* Build the uniform remap table that is used to set/get uniform locations */
+   /* Reserve all the explicit locations of the active uniforms. */
    for (unsigned i = 0; i < num_user_uniforms; i++) {
+      if (uniforms[i].remap_location != UNMAPPED_UNIFORM_LOC) {
+         /* How many new entries for this uniform? */
+         const unsigned entries = MAX2(1, uniforms[i].array_elements);
+
+         /* Set remap table entries point to correct gl_uniform_storage. */
+         for (unsigned j = 0; j < entries; j++) {
+            unsigned element_loc = uniforms[i].remap_location + j;
+            assert(prog->UniformRemapTable[element_loc] ==
+                   INACTIVE_UNIFORM_EXPLICIT_LOCATION);
+            prog->UniformRemapTable[element_loc] = &uniforms[i];
+         }
+      }
+   }
+
+   /* Reserve locations for rest of the uniforms. */
+   for (unsigned i = 0; i < num_user_uniforms; i++) {
+
+      /* Explicit ones have been set already. */
+      if (uniforms[i].remap_location != UNMAPPED_UNIFORM_LOC)
+         continue;
 
       /* how many new entries for this uniform? */
       const unsigned entries = MAX2(1, uniforms[i].array_elements);
diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
index a43d23082..0b6a71679 100644
--- a/mesalib/src/glsl/linker.cpp
+++ b/mesalib/src/glsl/linker.cpp
@@ -74,6 +74,7 @@
 #include "link_varyings.h"
 #include "ir_optimization.h"
 #include "ir_rvalue_visitor.h"
+#include "ir_uniform.h"
 
 extern "C" {
 #include "main/shaderobj.h"
@@ -2224,6 +2225,115 @@ check_image_resources(struct gl_context *ctx, struct gl_shader_program *prog)
       linker_error(prog, "Too many combined image uniforms and fragment outputs");
 }
 
+
+/**
+ * Initializes explicit location slots to INACTIVE_UNIFORM_EXPLICIT_LOCATION
+ * for a variable, checks for overlaps between other uniforms using explicit
+ * locations.
+ */
+static bool
+reserve_explicit_locations(struct gl_shader_program *prog,
+                           string_to_uint_map *map, ir_variable *var)
+{
+   unsigned slots = var->type->uniform_locations();
+   unsigned max_loc = var->data.location + slots - 1;
+
+   /* Resize remap table if locations do not fit in the current one. */
+   if (max_loc + 1 > prog->NumUniformRemapTable) {
+      prog->UniformRemapTable =
+         reralloc(prog, prog->UniformRemapTable,
+                  gl_uniform_storage *,
+                  max_loc + 1);
+
+      if (!prog->UniformRemapTable) {
+         linker_error(prog, "Out of memory during linking.");
+         return false;
+      }
+
+      /* Initialize allocated space. */
+      for (unsigned i = prog->NumUniformRemapTable; i < max_loc + 1; i++)
+         prog->UniformRemapTable[i] = NULL;
+
+      prog->NumUniformRemapTable = max_loc + 1;
+   }
+
+   for (unsigned i = 0; i < slots; i++) {
+      unsigned loc = var->data.location + i;
+
+      /* Check if location is already used. */
+      if (prog->UniformRemapTable[loc] == INACTIVE_UNIFORM_EXPLICIT_LOCATION) {
+
+         /* Possibly same uniform from a different stage, this is ok. */
+         unsigned hash_loc;
+         if (map->get(hash_loc, var->name) && hash_loc == loc - i)
+               continue;
+
+         /* ARB_explicit_uniform_location specification states:
+          *
+          *     "No two default-block uniform variables in the program can have
+          *     the same location, even if they are unused, otherwise a compiler
+          *     or linker error will be generated."
+          */
+         linker_error(prog,
+                      "location qualifier for uniform %s overlaps"
+                      "previously used location",
+                      var->name);
+         return false;
+      }
+
+      /* Initialize location as inactive before optimization
+       * rounds and location assignment.
+       */
+      prog->UniformRemapTable[loc] = INACTIVE_UNIFORM_EXPLICIT_LOCATION;
+   }
+
+   /* Note, base location used for arrays. */
+   map->put(var->data.location, var->name);
+
+   return true;
+}
+
+/**
+ * Check and reserve all explicit uniform locations, called before
+ * any optimizations happen to handle also inactive uniforms and
+ * inactive array elements that may get trimmed away.
+ */
+static void
+check_explicit_uniform_locations(struct gl_context *ctx,
+                                 struct gl_shader_program *prog)
+{
+   if (!ctx->Extensions.ARB_explicit_uniform_location)
+      return;
+
+   /* This map is used to detect if overlapping explicit locations
+    * occur with the same uniform (from different stage) or a different one.
+    */
+   string_to_uint_map *uniform_map = new string_to_uint_map;
+
+   if (!uniform_map) {
+      linker_error(prog, "Out of memory during linking.");
+      return;
+   }
+
+   for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
+      struct gl_shader *sh = prog->_LinkedShaders[i];
+
+      if (!sh)
+         continue;
+
+      foreach_list(node, sh->ir) {
+         ir_variable *var = ((ir_instruction *)node)->as_variable();
+         if ((var && var->data.mode == ir_var_uniform) &&
+             var->data.explicit_location) {
+            if (!reserve_explicit_locations(prog, uniform_map, var))
+               return;
+         }
+      }
+   }
+
+   delete uniform_map;
+}
+
 void
 link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
 {
@@ -2372,6 +2482,10 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
          break;
    }
 
+   check_explicit_uniform_locations(ctx, prog);
+   if (!prog->LinkStatus)
+      goto done;
+
    /* Validate the inputs of each stage with the output of the preceding
     * stage.
     */
diff --git a/mesalib/src/glsl/list.h b/mesalib/src/glsl/list.h
index b2e249657..fa6ec12cc 100644
--- a/mesalib/src/glsl/list.h
+++ b/mesalib/src/glsl/list.h
@@ -87,67 +87,29 @@ struct exec_node {
       /* empty */
    }
 
-   const exec_node *get_next() const
-   {
-      return next;
-   }
+   const exec_node *get_next() const;
+   exec_node *get_next();
 
-   exec_node *get_next()
-   {
-      return next;
-   }
+   const exec_node *get_prev() const;
+   exec_node *get_prev();
 
-   const exec_node *get_prev() const
-   {
-      return prev;
-   }
-
-   exec_node *get_prev()
-   {
-      return prev;
-   }
-
-   void remove()
-   {
-      next->prev = prev;
-      prev->next = next;
-      next = NULL;
-      prev = NULL;
-   }
+   void remove();
 
    /**
     * Link a node with itself
     *
     * This creates a sort of degenerate list that is occasionally useful.
     */
-   void self_link()
-   {
-      next = this;
-      prev = this;
-   }
+   void self_link();
 
    /**
     * Insert a node in the list after the current node
     */
-   void insert_after(exec_node *after)
-   {
-      after->next = this->next;
-      after->prev = this;
-
-      this->next->prev = after;
-      this->next = after;
-   }
+   void insert_after(exec_node *after);
    /**
     * Insert a node in the list before the current node
     */
-   void insert_before(exec_node *before)
-   {
-      before->next = this;
-      before->prev = this->prev;
-
-      this->prev->next = before;
-      this->prev = before;
-   }
+   void insert_before(exec_node *before);
 
    /**
     * Insert another list in the list before the current node
@@ -157,33 +119,165 @@ struct exec_node {
    /**
     * Replace the current node with the given node.
     */
-   void replace_with(exec_node *replacement)
-   {
-      replacement->prev = this->prev;
-      replacement->next = this->next;
-
-      this->prev->next = replacement;
-      this->next->prev = replacement;
-   }
+   void replace_with(exec_node *replacement);
 
    /**
     * Is this the sentinel at the tail of the list?
     */
-   bool is_tail_sentinel() const
-   {
-      return this->next == NULL;
-   }
+   bool is_tail_sentinel() const;
 
    /**
     * Is this the sentinel at the head of the list?
     */
-   bool is_head_sentinel() const
-   {
-      return this->prev == NULL;
-   }
+   bool is_head_sentinel() const;
 #endif
 };
 
+static inline void
+exec_node_init(struct exec_node *n)
+{
+   n->next = NULL;
+   n->prev = NULL;
+}
+
+static inline const struct exec_node *
+exec_node_get_next_const(const struct exec_node *n)
+{
+   return n->next;
+}
+
+static inline struct exec_node *
+exec_node_get_next(struct exec_node *n)
+{
+   return n->next;
+}
+
+static inline const struct exec_node *
+exec_node_get_prev_const(const struct exec_node *n)
+{
+   return n->prev;
+}
+
+static inline struct exec_node *
+exec_node_get_prev(struct exec_node *n)
+{
+   return n->prev;
+}
+
+static inline void
+exec_node_remove(struct exec_node *n)
+{
+   n->next->prev = n->prev;
+   n->prev->next = n->next;
+   n->next = NULL;
+   n->prev = NULL;
+}
+
+static inline void
+exec_node_self_link(struct exec_node *n)
+{
+   n->next = n;
+   n->prev = n;
+}
+
+static inline void
+exec_node_insert_after(struct exec_node *n, struct exec_node *after)
+{
+   after->next = n->next;
+   after->prev = n;
+
+   n->next->prev = after;
+   n->next = after;
+}
+
+static inline void
+exec_node_insert_node_before(struct exec_node *n, struct exec_node *before)
+{
+   before->next = n;
+   before->prev = n->prev;
+
+   n->prev->next = before;
+   n->prev = before;
+}
+
+static inline void
+exec_node_replace_with(struct exec_node *n, struct exec_node *replacement)
+{
+   replacement->prev = n->prev;
+   replacement->next = n->next;
+
+   n->prev->next = replacement;
+   n->next->prev = replacement;
+}
+
+static inline bool
+exec_node_is_tail_sentinel(const struct exec_node *n)
+{
+   return n->next == NULL;
+}
+
+static inline bool
+exec_node_is_head_sentinel(const struct exec_node *n)
+{
+   return n->prev == NULL;
+}
+
+#ifdef __cplusplus
+inline const exec_node *exec_node::get_next() const
+{
+   return exec_node_get_next_const(this);
+}
+
+inline exec_node *exec_node::get_next()
+{
+   return exec_node_get_next(this);
+}
+
+inline const exec_node *exec_node::get_prev() const
+{
+   return exec_node_get_prev_const(this);
+}
+
+inline exec_node *exec_node::get_prev()
+{
+   return exec_node_get_prev(this);
+}
+
+inline void exec_node::remove()
+{
+   exec_node_remove(this);
+}
+
+inline void exec_node::self_link()
+{
+   exec_node_self_link(this);
+}
+
+inline void exec_node::insert_after(exec_node *after)
+{
+   exec_node_insert_after(this, after);
+}
+
+inline void exec_node::insert_before(exec_node *before)
+{
+   exec_node_insert_node_before(this, before);
+}
+
+inline void exec_node::replace_with(exec_node *replacement)
+{
+   exec_node_replace_with(this, replacement);
+}
+
+inline bool exec_node::is_tail_sentinel() const
+{
+   return exec_node_is_tail_sentinel(this);
+}
+
+inline bool exec_node::is_head_sentinel() const
+{
+   return exec_node_is_head_sentinel(this);
+}
+#endif
 
 #ifdef __cplusplus
 /* This macro will not work correctly if `t' uses virtual inheritance.  If you
@@ -229,75 +323,19 @@ struct exec_list {
       make_empty();
    }
 
-   void make_empty()
-   {
-      head = (exec_node *) & tail;
-      tail = NULL;
-      tail_pred = (exec_node *) & head;
-   }
-
-   bool is_empty() const
-   {
-      /* There are three ways to test whether a list is empty or not.
-       *
-       * - Check to see if the \c head points to the \c tail.
-       * - Check to see if the \c tail_pred points to the \c head.
-       * - Check to see if the \c head is the sentinel node by test whether its
-       *   \c next pointer is \c NULL.
-       *
-       * The first two methods tend to generate better code on modern systems
-       * because they save a pointer dereference.
-       */
-      return head == (exec_node *) &tail;
-   }
-
-   const exec_node *get_head() const
-   {
-      return !is_empty() ? head : NULL;
-   }
-
-   exec_node *get_head()
-   {
-      return !is_empty() ? head : NULL;
-   }
-
-   const exec_node *get_tail() const
-   {
-      return !is_empty() ? tail_pred : NULL;
-   }
-
-   exec_node *get_tail()
-   {
-      return !is_empty() ? tail_pred : NULL;
-   }
+   void make_empty();
 
-   void push_head(exec_node *n)
-   {
-      n->next = head;
-      n->prev = (exec_node *) &head;
+   bool is_empty() const;
 
-      n->next->prev = n;
-      head = n;
-   }
+   const exec_node *get_head() const;
+   exec_node *get_head();
 
-   void push_tail(exec_node *n)
-   {
-      n->next = (exec_node *) &tail;
-      n->prev = tail_pred;
+   const exec_node *get_tail() const;
+   exec_node *get_tail();
 
-      n->prev->next = n;
-      tail_pred = n;
-   }
-
-   void push_degenerate_list_at_head(exec_node *n)
-   {
-      assert(n->prev->next == n);
-
-      n->prev->next = head;
-      head->prev = n->prev;
-      n->prev = (exec_node *) &head;
-      head = n;
-   }
+   void push_head(exec_node *n);
+   void push_tail(exec_node *n);
+   void push_degenerate_list_at_head(exec_node *n);
 
    /**
     * Remove the first node from a list and return it
@@ -307,87 +345,239 @@ struct exec_list {
     *
     * \sa exec_list::get_head
     */
-   exec_node *pop_head()
-   {
-      exec_node *const n = this->get_head();
-      if (n != NULL)
-	 n->remove();
-
-      return n;
-   }
+   exec_node *pop_head();
 
    /**
     * Move all of the nodes from this list to the target list
     */
-   void move_nodes_to(exec_list *target)
-   {
-      if (is_empty()) {
-	 target->make_empty();
-      } else {
-	 target->head = head;
-	 target->tail = NULL;
-	 target->tail_pred = tail_pred;
-
-	 target->head->prev = (exec_node *) &target->head;
-	 target->tail_pred->next = (exec_node *) &target->tail;
-
-	 make_empty();
-      }
-   }
+   void move_nodes_to(exec_list *target);
 
    /**
     * Append all nodes from the source list to the target list
     */
-   void
-   append_list(exec_list *source)
-   {
-      if (source->is_empty())
-	 return;
-
-      /* Link the first node of the source with the last node of the target list.
-       */
-      this->tail_pred->next = source->head;
-      source->head->prev = this->tail_pred;
-
-      /* Make the tail of the source list be the tail of the target list.
-       */
-      this->tail_pred = source->tail_pred;
-      this->tail_pred->next = (exec_node *) &this->tail;
-
-      /* Make the source list empty for good measure.
-       */
-      source->make_empty();
-   }
+   void append_list(exec_list *source);
 #endif
 };
 
+static inline void
+exec_list_make_empty(struct exec_list *list)
+{
+   list->head = (struct exec_node *) & list->tail;
+   list->tail = NULL;
+   list->tail_pred = (struct exec_node *) & list->head;
+}
 
-#ifdef __cplusplus
-inline void exec_node::insert_before(exec_list *before)
+static inline bool
+exec_list_is_empty(const struct exec_list *list)
+{
+   /* There are three ways to test whether a list is empty or not.
+    *
+    * - Check to see if the \c head points to the \c tail.
+    * - Check to see if the \c tail_pred points to the \c head.
+    * - Check to see if the \c head is the sentinel node by test whether its
+    *   \c next pointer is \c NULL.
+    *
+    * The first two methods tend to generate better code on modern systems
+    * because they save a pointer dereference.
+    */
+   return list->head == (struct exec_node *) &list->tail;
+}
+
+static inline const struct exec_node *
+exec_list_get_head_const(const struct exec_list *list)
+{
+   return !exec_list_is_empty(list) ? list->head : NULL;
+}
+
+static inline struct exec_node *
+exec_list_get_head(struct exec_list *list)
+{
+   return !exec_list_is_empty(list) ? list->head : NULL;
+}
+
+static inline const struct exec_node *
+exec_list_get_tail_const(const struct exec_list *list)
+{
+   return !exec_list_is_empty(list) ? list->tail_pred : NULL;
+}
+
+static inline struct exec_node *
+exec_list_get_tail(struct exec_list *list)
+{
+   return !exec_list_is_empty(list) ? list->tail_pred : NULL;
+}
+
+static inline void
+exec_list_push_head(struct exec_list *list, struct exec_node *n)
+{
+   n->next = list->head;
+   n->prev = (struct exec_node *) &list->head;
+
+   n->next->prev = n;
+   list->head = n;
+}
+
+static inline void
+exec_list_push_tail(struct exec_list *list, struct exec_node *n)
+{
+   n->next = (struct exec_node *) &list->tail;
+   n->prev = list->tail_pred;
+
+   n->prev->next = n;
+   list->tail_pred = n;
+}
+
+static inline void
+exec_list_push_degenerate_list_at_head(struct exec_list *list, struct exec_node *n)
+{
+   assert(n->prev->next == n);
+
+   n->prev->next = list->head;
+   list->head->prev = n->prev;
+   n->prev = (struct exec_node *) &list->head;
+   list->head = n;
+}
+
+static inline struct exec_node *
+exec_list_pop_head(struct exec_list *list)
+{
+   struct exec_node *const n = exec_list_get_head(list);
+   if (n != NULL)
+      exec_node_remove(n);
+
+   return n;
+}
+
+static inline void
+exec_list_move_nodes_to(struct exec_list *list, struct exec_list *target)
+{
+   if (exec_list_is_empty(list)) {
+      exec_list_make_empty(target);
+   } else {
+      target->head = list->head;
+      target->tail = NULL;
+      target->tail_pred = list->tail_pred;
+
+      target->head->prev = (struct exec_node *) &target->head;
+      target->tail_pred->next = (struct exec_node *) &target->tail;
+
+      exec_list_make_empty(list);
+   }
+}
+
+static inline void
+exec_list_append(struct exec_list *list, struct exec_list *source)
+{
+   if (exec_list_is_empty(source))
+      return;
+
+   /* Link the first node of the source with the last node of the target list.
+    */
+   list->tail_pred->next = source->head;
+   source->head->prev = list->tail_pred;
+
+   /* Make the tail of the source list be the tail of the target list.
+    */
+   list->tail_pred = source->tail_pred;
+   list->tail_pred->next = (struct exec_node *) &list->tail;
+
+   /* Make the source list empty for good measure.
+    */
+   exec_list_make_empty(source);
+}
+
+static inline void
+exec_node_insert_list_before(struct exec_node *n, struct exec_list *before)
 {
-   if (before->is_empty())
+   if (exec_list_is_empty(before))
       return;
 
-   before->tail_pred->next = this;
-   before->head->prev = this->prev;
+   before->tail_pred->next = n;
+   before->head->prev = n->prev;
 
-   this->prev->next = before->head;
-   this->prev = before->tail_pred;
+   n->prev->next = before->head;
+   n->prev = before->tail_pred;
 
-   before->make_empty();
+   exec_list_make_empty(before);
+}
+
+#ifdef __cplusplus
+inline void exec_list::make_empty()
+{
+   exec_list_make_empty(this);
+}
+
+inline bool exec_list::is_empty() const
+{
+   return exec_list_is_empty(this);
+}
+
+inline const exec_node *exec_list::get_head() const
+{
+   return exec_list_get_head_const(this);
+}
+
+inline exec_node *exec_list::get_head()
+{
+   return exec_list_get_head(this);
+}
+
+inline const exec_node *exec_list::get_tail() const
+{
+   return exec_list_get_tail_const(this);
+}
+
+inline exec_node *exec_list::get_tail()
+{
+   return exec_list_get_tail(this);
+}
+
+inline void exec_list::push_head(exec_node *n)
+{
+   exec_list_push_head(this, n);
+}
+
+inline void exec_list::push_tail(exec_node *n)
+{
+   exec_list_push_tail(this, n);
+}
+
+inline void exec_list::push_degenerate_list_at_head(exec_node *n)
+{
+   exec_list_push_degenerate_list_at_head(this, n);
+}
+
+inline exec_node *exec_list::pop_head()
+{
+   return exec_list_pop_head(this);
+}
+
+inline void exec_list::move_nodes_to(exec_list *target)
+{
+   exec_list_move_nodes_to(this, target);
+}
+
+inline void exec_list::append_list(exec_list *source)
+{
+   exec_list_append(this, source);
+}
+
+inline void exec_node::insert_before(exec_list *before)
+{
+   exec_node_insert_list_before(this, before);
 }
 #endif
 
 /**
  * This version is safe even if the current node is removed.
  */ 
-#define foreach_list_safe(__node, __list)			     \
-   for (exec_node * __node = (__list)->head, * __next = __node->next \
-	; __next != NULL					     \
+#define foreach_list_safe(__node, __list)					\
+   for (struct exec_node * __node = (__list)->head, * __next = __node->next	\
+	; __next != NULL							\
 	; __node = __next, __next = __next->next)
 
 #define foreach_list(__node, __list)			\
-   for (exec_node * __node = (__list)->head		\
+   for (struct exec_node * __node = (__list)->head	\
 	; (__node)->next != NULL 			\
 	; (__node) = (__node)->next)
 
@@ -397,19 +587,19 @@ inline void exec_node::insert_before(exec_list *before)
  * This is safe against either current node being removed or replaced.
  */
 #define foreach_two_lists(__node1, __list1, __node2, __list2) \
-   for (exec_node * __node1 = (__list1)->head,                \
-                  * __node2 = (__list2)->head,                \
-                  * __next1 = __node1->next,                  \
-                  * __next2 = __node2->next                   \
+   for (struct exec_node * __node1 = (__list1)->head,         \
+                         * __node2 = (__list2)->head,         \
+                         * __next1 = __node1->next,           \
+                         * __next2 = __node2->next            \
 	; __next1 != NULL && __next2 != NULL                  \
 	; __node1 = __next1,                                  \
           __node2 = __next2,                                  \
           __next1 = __next1->next,                            \
           __next2 = __next2->next)
 
-#define foreach_list_const(__node, __list)		\
-   for (const exec_node * __node = (__list)->head	\
-	; (__node)->next != NULL 			\
+#define foreach_list_const(__node, __list)			\
+   for (const struct exec_node * __node = (__list)->head	\
+	; (__node)->next != NULL 				\
 	; (__node) = (__node)->next)
 
 #define foreach_list_typed(__type, __node, __field, __list)		\
diff --git a/mesalib/src/glsl/opt_algebraic.cpp b/mesalib/src/glsl/opt_algebraic.cpp
index 9d5539252..ac7514acf 100644
--- a/mesalib/src/glsl/opt_algebraic.cpp
+++ b/mesalib/src/glsl/opt_algebraic.cpp
@@ -45,7 +45,9 @@ namespace {
 
 class ir_algebraic_visitor : public ir_rvalue_visitor {
 public:
-   ir_algebraic_visitor(bool native_integers)
+   ir_algebraic_visitor(bool native_integers,
+                        const struct gl_shader_compiler_options *options)
+      : options(options)
    {
       this->progress = false;
       this->mem_ctx = NULL;
@@ -69,6 +71,7 @@ public:
    ir_rvalue *swizzle_if_required(ir_expression *expr,
 				  ir_rvalue *operand);
 
+   const struct gl_shader_compiler_options *options;
    void *mem_ctx;
 
    bool native_integers;
@@ -116,6 +119,46 @@ update_type(ir_expression *ir)
       ir->type = ir->operands[1]->type;
 }
 
+/* Recognize (v.x + v.y) + (v.z + v.w) as dot(v, 1.0) */
+static ir_expression *
+try_replace_with_dot(ir_expression *expr0, ir_expression *expr1, void *mem_ctx)
+{
+   if (expr0 && expr0->operation == ir_binop_add &&
+       expr0->type->is_float() &&
+       expr1 && expr1->operation == ir_binop_add &&
+       expr1->type->is_float()) {
+      ir_swizzle *x = expr0->operands[0]->as_swizzle();
+      ir_swizzle *y = expr0->operands[1]->as_swizzle();
+      ir_swizzle *z = expr1->operands[0]->as_swizzle();
+      ir_swizzle *w = expr1->operands[1]->as_swizzle();
+
+      if (!x || x->mask.num_components != 1 ||
+          !y || y->mask.num_components != 1 ||
+          !z || z->mask.num_components != 1 ||
+          !w || w->mask.num_components != 1) {
+         return NULL;
+      }
+
+      bool swiz_seen[4] = {false, false, false, false};
+      swiz_seen[x->mask.x] = true;
+      swiz_seen[y->mask.x] = true;
+      swiz_seen[z->mask.x] = true;
+      swiz_seen[w->mask.x] = true;
+
+      if (!swiz_seen[0] || !swiz_seen[1] ||
+          !swiz_seen[2] || !swiz_seen[3]) {
+         return NULL;
+      }
+
+      if (x->val->equals(y->val) &&
+          x->val->equals(z->val) &&
+          x->val->equals(w->val)) {
+         return dot(x->val, new(mem_ctx) ir_constant(1.0f, 4));
+      }
+   }
+   return NULL;
+}
+
 void
 ir_algebraic_visitor::reassociate_operands(ir_expression *ir1,
 					   int op1,
@@ -329,6 +372,14 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
       if (op_const[1] && !op_const[0])
 	 reassociate_constant(ir, 1, op_const[1], op_expr[0]);
 
+      /* Recognize (v.x + v.y) + (v.z + v.w) as dot(v, 1.0) */
+      if (options->OptimizeForAOS) {
+         ir_expression *expr = try_replace_with_dot(op_expr[0], op_expr[1],
+                                                    mem_ctx);
+         if (expr)
+            return expr;
+      }
+
       /* Replace (-x + y) * a + x and commutative variations with lrp(x, y, a).
        *
        * (-x + y) * a + x
@@ -380,6 +431,7 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
             }
          }
       }
+
       break;
 
    case ir_binop_sub:
@@ -647,9 +699,10 @@ ir_algebraic_visitor::handle_rvalue(ir_rvalue **rvalue)
 }
 
 bool
-do_algebraic(exec_list *instructions, bool native_integers)
+do_algebraic(exec_list *instructions, bool native_integers,
+             const struct gl_shader_compiler_options *options)
 {
-   ir_algebraic_visitor v(native_integers);
+   ir_algebraic_visitor v(native_integers, options);
 
    visit_list_elements(&v, instructions);
 
diff --git a/mesalib/src/glsl/opt_dead_builtin_varyings.cpp b/mesalib/src/glsl/opt_dead_builtin_varyings.cpp
index 6612592aa..50c8aa763 100644
--- a/mesalib/src/glsl/opt_dead_builtin_varyings.cpp
+++ b/mesalib/src/glsl/opt_dead_builtin_varyings.cpp
@@ -334,7 +334,7 @@ public:
    }
 
    void prepare_array(exec_list *ir,
-                      struct ir_variable **new_var,
+                      ir_variable **new_var,
                       int max_elements, unsigned start_location,
                       const char *var_name, const char *mode_str,
                       unsigned usage, unsigned external_usage)
diff --git a/mesalib/src/glsl/opt_rebalance_tree.cpp b/mesalib/src/glsl/opt_rebalance_tree.cpp
new file mode 100644
index 000000000..773aab3f6
--- /dev/null
+++ b/mesalib/src/glsl/opt_rebalance_tree.cpp
@@ -0,0 +1,300 @@
+/*
+ * Copyright © 2014 Intel Corporation
+ *
+ * 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 (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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+/**
+ * \file opt_rebalance_tree.cpp
+ *
+ * Rebalances a reduction expression tree.
+ *
+ * For reduction operations (e.g., x + y + z + w) we generate an expression
+ * tree like
+ *
+ *        +
+ *       / \
+ *      +   w
+ *     / \
+ *    +   z
+ *   / \
+ *  x   y
+ *
+ * which we can rebalance into
+ *
+ *       +
+ *      / \
+ *     /   \
+ *    +     +
+ *   / \   / \
+ *  x   y z   w
+ *
+ * to get a better instruction scheduling.
+ *
+ * See "Tree Rebalancing in Optimal Editor Time and Space" by Quentin F. Stout
+ * and Bette L. Warren.
+ *
+ * Also see http://penguin.ewu.edu/~trolfe/DSWpaper/ for a very readable
+ * explanation of the of the tree_to_vine() (rightward rotation) and
+ * vine_to_tree() (leftward rotation) algorithms.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_optimization.h"
+
+/* The DSW algorithm generates a degenerate tree (really, a linked list) in
+ * tree_to_vine(). We'd rather not leave a binary expression with only one
+ * operand, so trivial modifications (the ternary operators below) are needed
+ * to ensure that we only rotate around the ir_expression nodes of the tree.
+ */
+static unsigned
+tree_to_vine(ir_expression *root)
+{
+   unsigned size = 0;
+   ir_rvalue *vine_tail = root;
+   ir_rvalue *remainder = root->operands[1];
+
+   while (remainder != NULL) {
+      ir_expression *remainder_temp = remainder->as_expression();
+      ir_expression *remainder_left = remainder_temp ?
+         remainder_temp->operands[0]->as_expression() : NULL;
+
+      if (remainder_left == NULL) {
+         /* move vine_tail down one */
+         vine_tail = remainder;
+         remainder = remainder->as_expression() ?
+            ((ir_expression *)remainder)->operands[1] : NULL;
+         size++;
+      } else {
+         /* rotate */
+         ir_expression *tempptr = remainder_left;
+         ((ir_expression *)remainder)->operands[0] = tempptr->operands[1];
+         tempptr->operands[1] = remainder;
+         remainder = tempptr;
+         ((ir_expression *)vine_tail)->operands[1] = tempptr;
+      }
+   }
+
+   return size;
+}
+
+static void
+compression(ir_expression *root, unsigned count)
+{
+   ir_expression *scanner = root;
+
+   for (unsigned i = 0; i < count; i++) {
+      ir_expression *child = (ir_expression *)scanner->operands[1];
+      scanner->operands[1] = child->operands[1];
+      scanner = (ir_expression *)scanner->operands[1];
+      child->operands[1] = scanner->operands[0];
+      scanner->operands[0] = child;
+   }
+}
+
+static void
+vine_to_tree(ir_expression *root, unsigned size)
+{
+   int n = size - 1;
+   for (int m = n / 2; m > 0; m = n / 2) {
+      compression(root, m);
+      n -= m + 1;
+   }
+}
+
+namespace {
+
+class ir_rebalance_visitor : public ir_rvalue_enter_visitor {
+public:
+   ir_rebalance_visitor()
+   {
+      progress = false;
+   }
+
+   void handle_rvalue(ir_rvalue **rvalue);
+
+   bool progress;
+};
+
+struct is_reduction_data {
+   ir_expression_operation operation;
+   const glsl_type *type;
+   unsigned num_expr;
+   bool is_reduction;
+   bool contains_constant;
+};
+
+} /* anonymous namespace */
+
+static bool
+is_reduction_operation(ir_expression_operation operation)
+{
+   switch (operation) {
+   case ir_binop_add:
+   case ir_binop_mul:
+   case ir_binop_bit_and:
+   case ir_binop_bit_xor:
+   case ir_binop_bit_or:
+   case ir_binop_logic_and:
+   case ir_binop_logic_xor:
+   case ir_binop_logic_or:
+   case ir_binop_min:
+   case ir_binop_max:
+      return true;
+   default:
+      return false;
+   }
+}
+
+/* Note that this function does not attempt to recognize that reduction trees
+ * are already balanced.
+ *
+ * We return false from this function for a number of reasons other than an
+ * expression tree not being a mathematical reduction. Namely,
+ *
+ *    - if the tree contains multiple constants that we may be able to combine.
+ *    - if the tree contains matrices:
+ *       - they might contain vec4's with many constant components that we can
+ *         simplify after splitting.
+ *       - applying the matrix chain ordering optimization is more than just
+ *         balancing an expression tree.
+ *    - if the tree contains operations on multiple types.
+ *    - if the tree contains ir_dereference_{array,record}, since foo[a+b] + c
+ *      would trick the visiting pass.
+ */
+static void
+is_reduction(ir_instruction *ir, void *data)
+{
+   struct is_reduction_data *ird = (struct is_reduction_data *)data;
+   if (!ird->is_reduction)
+      return;
+
+   /* We don't want to balance a tree that contains multiple constants, since
+    * we'll be able to constant fold them if they're not in separate subtrees.
+    */
+   if (ir->as_constant()) {
+      if (ird->contains_constant) {
+         ird->is_reduction = false;
+      }
+      ird->contains_constant = true;
+      return;
+   }
+
+   /* Array/record dereferences have subtrees that are not part of the expr
+    * tree we're balancing. Skip trees containing them.
+    */
+   if (ir->ir_type == ir_type_dereference_array ||
+       ir->ir_type == ir_type_dereference_record) {
+      ird->is_reduction = false;
+      return;
+   }
+
+   ir_expression *expr = ir->as_expression();
+   if (!expr)
+      return;
+
+   /* Non-constant matrices might still contain constant vec4 that we can
+    * constant fold once split up. Handling matrices will need some more
+    * work.
+    */
+   if (expr->type->is_matrix()) {
+      ird->is_reduction = false;
+      return;
+   }
+
+   if (ird->type != NULL && ird->type != expr->type) {
+      ird->is_reduction = false;
+      return;
+   }
+   ird->type = expr->type;
+
+   ird->num_expr++;
+   if (is_reduction_operation(expr->operation)) {
+      if (ird->operation != 0 && ird->operation != expr->operation)
+         ird->is_reduction = false;
+      ird->operation = expr->operation;
+   } else {
+      ird->is_reduction = false;
+   }
+}
+
+static ir_rvalue *
+handle_expression(ir_expression *expr)
+{
+   struct is_reduction_data ird;
+   ird.operation = (ir_expression_operation)0;
+   ird.type = NULL;
+   ird.num_expr = 0;
+   ird.is_reduction = true;
+   ird.contains_constant = false;
+
+   visit_tree(expr, is_reduction, (void *)&ird);
+
+   if (ird.is_reduction && ird.num_expr > 2) {
+      ir_constant z = ir_constant(0.0f);
+      ir_expression pseudo_root = ir_expression(ir_binop_add, &z, expr);
+
+      unsigned size = tree_to_vine(&pseudo_root);
+      vine_to_tree(&pseudo_root, size);
+
+      expr = (ir_expression *)pseudo_root.operands[1];
+   }
+   return expr;
+}
+
+void
+ir_rebalance_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+   if (!*rvalue)
+      return;
+
+   ir_expression *expr = (*rvalue)->as_expression();
+   if (!expr || !is_reduction_operation(expr->operation))
+      return;
+
+   ir_rvalue *new_rvalue = handle_expression(expr);
+
+   /* If we failed to rebalance the tree (e.g., because it wasn't a reduction,
+    * or some other set of cases) new_rvalue will point to the same root as
+    * before.
+    *
+    * Similarly, if the tree rooted at *rvalue was a reduction and was already
+    * balanced, the algorithm will rearrange the tree but will ultimately
+    * return an identical tree, so this check will handle that as well and
+    * will not set progress = true.
+    */
+   if (new_rvalue == *rvalue)
+      return;
+
+   *rvalue = new_rvalue;
+   this->progress = true;
+}
+
+bool
+do_rebalance_tree(exec_list *instructions)
+{
+   ir_rebalance_visitor v;
+
+   v.run(instructions);
+
+   return v.progress;
+}
diff --git a/mesalib/src/glsl/standalone_scaffolding.cpp b/mesalib/src/glsl/standalone_scaffolding.cpp
index 6c25010b7..809732c7e 100644
--- a/mesalib/src/glsl/standalone_scaffolding.cpp
+++ b/mesalib/src/glsl/standalone_scaffolding.cpp
@@ -98,6 +98,7 @@ void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
    ctx->Extensions.ARB_ES3_compatibility = true;
    ctx->Extensions.ARB_explicit_attrib_location = true;
    ctx->Extensions.ARB_fragment_coord_conventions = true;
+   ctx->Extensions.ARB_fragment_layer_viewport = true;
    ctx->Extensions.ARB_gpu_shader5 = true;
    ctx->Extensions.ARB_sample_shading = true;
    ctx->Extensions.ARB_shader_bit_encoding = true;
diff --git a/mesalib/src/glsl/test_optpass.cpp b/mesalib/src/glsl/test_optpass.cpp
index db5cb2662..e4878bf15 100644
--- a/mesalib/src/glsl/test_optpass.cpp
+++ b/mesalib/src/glsl/test_optpass.cpp
@@ -65,7 +65,7 @@ do_optimization(struct exec_list *ir, const char *optimization,
    if (sscanf(optimization, "do_common_optimization ( %d ) ", &int_0) == 1) {
       return do_common_optimization(ir, int_0 != 0, false, options, true);
    } else if (strcmp(optimization, "do_algebraic") == 0) {
-      return do_algebraic(ir, true);
+      return do_algebraic(ir, true, options);
    } else if (strcmp(optimization, "do_constant_folding") == 0) {
       return do_constant_folding(ir);
    } else if (strcmp(optimization, "do_constant_variable") == 0) {
diff --git a/mesalib/src/mapi/glapi/gen/ARB_compressed_texture_pixel_storage.xml b/mesalib/src/mapi/glapi/gen/ARB_compressed_texture_pixel_storage.xml
new file mode 100644
index 000000000..c9d0f11be
--- /dev/null
+++ b/mesalib/src/mapi/glapi/gen/ARB_compressed_texture_pixel_storage.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+<!DOCTYPE OpenGLAPI SYSTEM "gl_API.dtd">
+
+<OpenGLAPI>
+
+<category name="GL_ARB_compressed_texture_pixel_storage" number="110">
+
+    <enum name="UNPACK_COMPRESSED_BLOCK_WIDTH"  value="0x9127"/>
+    <enum name="UNPACK_COMPRESSED_BLOCK_HEIGHT" value="0x9128"/>
+    <enum name="UNPACK_COMPRESSED_BLOCK_DEPTH"  value="0x9129"/>
+    <enum name="UNPACK_COMPRESSED_BLOCK_SIZE"   value="0x912A"/>
+
+    <enum name="PACK_COMPRESSED_BLOCK_WIDTH"    value="0x912B"/>
+    <enum name="PACK_COMPRESSED_BLOCK_HEIGHT"   value="0x912C"/>
+    <enum name="PACK_COMPRESSED_BLOCK_DEPTH"    value="0x912D"/>
+    <enum name="PACK_COMPRESSED_BLOCK_SIZE"     value="0x912E"/>
+
+</category>
+
+</OpenGLAPI>
+
diff --git a/mesalib/src/mapi/glapi/gen/Makefile.am b/mesalib/src/mapi/glapi/gen/Makefile.am
index 6f36989bc..be7d9e0ef 100644
--- a/mesalib/src/mapi/glapi/gen/Makefile.am
+++ b/mesalib/src/mapi/glapi/gen/Makefile.am
@@ -113,6 +113,7 @@ API_XML = \
 	ARB_blend_func_extended.xml \
 	ARB_clear_buffer_object.xml \
 	ARB_color_buffer_float.xml \
+	ARB_compressed_texture_pixel_storage.xml \
 	ARB_compute_shader.xml \
 	ARB_copy_buffer.xml \
 	ARB_debug_output.xml \
diff --git a/mesalib/src/mapi/glapi/gen/gl_API.xml b/mesalib/src/mapi/glapi/gen/gl_API.xml
index 58aed8e6f..a43410322 100755
--- a/mesalib/src/mapi/glapi/gen/gl_API.xml
+++ b/mesalib/src/mapi/glapi/gen/gl_API.xml
@@ -8276,7 +8276,9 @@
   </function>
 </category>
 
-<!-- ARB extensions #110...#116 -->
+<xi:include href="ARB_compressed_texture_pixel_storage.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+
+<!-- ARB extensions #111...#116 -->
 
 <xi:include href="ARB_internalformat_query.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
@@ -8310,7 +8312,19 @@
 
 <xi:include href="ARB_ES3_compatibility.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
-<!-- ARB extensions #128...#131 -->
+<!-- ARB extension #128 -->
+
+<category name="GL_ARB_fragment_layer_viewport" number="129">
+    <!-- No new functions, types, enums. -->
+</category>
+
+<!-- ARB extensions #130..#131 -->
+
+<category name="GL_ARB_explicit_uniform_location" number="128">
+    <enum name="MAX_UNIFORM_LOCATIONS" count="1" value="0x826E" >
+        <size name="Get" mode="get"/>
+    </enum>
+</category>
 
 <xi:include href="ARB_invalidate_subdata.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
diff --git a/mesalib/src/mesa/Android.libmesa_dricore.mk b/mesalib/src/mesa/Android.libmesa_dricore.mk
index 0db5825de..217f6498a 100644
--- a/mesalib/src/mesa/Android.libmesa_dricore.mk
+++ b/mesalib/src/mesa/Android.libmesa_dricore.mk
@@ -47,10 +47,16 @@ ifeq ($(TARGET_ARCH),x86)
 endif # x86
 endif # MESA_ENABLE_ASM
 
+ifeq ($(ARCH_X86_HAVE_SSE4_1),true)
+LOCAL_SRC_FILES += \
+	$(SRCDIR)main/streaming-load-memcpy.c
+endif
+
 LOCAL_C_INCLUDES := \
 	$(call intermediates-dir-for STATIC_LIBRARIES,libmesa_program,,) \
 	$(MESA_TOP)/src/mapi \
-	$(MESA_TOP)/src/glsl
+	$(MESA_TOP)/src/glsl \
+	$(MESA_TOP)/src/gallium/auxiliary
 
 LOCAL_WHOLE_STATIC_LIBRARIES := \
 	libmesa_program
diff --git a/mesalib/src/mesa/Android.libmesa_glsl_utils.mk b/mesalib/src/mesa/Android.libmesa_glsl_utils.mk
index 47f2e151b..e93891f07 100644
--- a/mesalib/src/mesa/Android.libmesa_glsl_utils.mk
+++ b/mesalib/src/mesa/Android.libmesa_glsl_utils.mk
@@ -56,6 +56,7 @@ include $(CLEAR_VARS)
 
 LOCAL_MODULE := libmesa_glsl_utils
 LOCAL_IS_HOST_MODULE := true
+LOCAL_CFLAGS := -D_POSIX_C_SOURCE=199309L
 
 LOCAL_C_INCLUDES := \
 	$(MESA_TOP)/src/glsl \
diff --git a/mesalib/src/mesa/Android.mesa_gen_matypes.mk b/mesalib/src/mesa/Android.mesa_gen_matypes.mk
index 6e301f904..5521087c4 100644
--- a/mesalib/src/mesa/Android.mesa_gen_matypes.mk
+++ b/mesalib/src/mesa/Android.mesa_gen_matypes.mk
@@ -33,6 +33,7 @@ include $(CLEAR_VARS)
 
 LOCAL_MODULE := mesa_gen_matypes
 LOCAL_IS_HOST_MODULE := true
+LOCAL_CFLAGS := -D_POSIX_C_SOURCE=199309L
 
 LOCAL_C_INCLUDES := \
 	$(MESA_TOP)/src/mapi \
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c
index fec0d2be5..1a2e45320 100644
--- a/mesalib/src/mesa/drivers/common/meta.c
+++ b/mesalib/src/mesa/drivers/common/meta.c
@@ -801,7 +801,7 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
       int buf, real_color_buffers = 0;
       memset(save->ColorDrawBuffers, 0, sizeof(save->ColorDrawBuffers));
 
-      for (buf = 0; buf < MAX_DRAW_BUFFERS; buf++) {
+      for (buf = 0; buf < ctx->Const.MaxDrawBuffers; buf++) {
          int buf_index = ctx->DrawBuffer->_ColorDrawBufferIndexes[buf];
          if (buf_index == -1)
             continue;
@@ -1213,7 +1213,7 @@ _mesa_meta_end(struct gl_context *ctx)
       _mesa_BindRenderbuffer(GL_RENDERBUFFER, save->RenderbufferName);
 
    if (state & MESA_META_DRAW_BUFFERS) {
-      _mesa_DrawBuffers(MAX_DRAW_BUFFERS, save->ColorDrawBuffers);
+      _mesa_DrawBuffers(ctx->Const.MaxDrawBuffers, save->ColorDrawBuffers);
    }
 
    ctx->Meta->SaveStackDepth--;
@@ -1569,6 +1569,7 @@ meta_glsl_clear_init(struct gl_context *ctx, struct clear_state *clear)
    _mesa_AttachShader(clear->ShaderProg, vs);
    _mesa_DeleteShader(vs);
    _mesa_BindAttribLocation(clear->ShaderProg, 0, "position");
+   _mesa_ObjectLabel(GL_PROGRAM, clear->ShaderProg, -1, "meta clear");
    _mesa_LinkProgram(clear->ShaderProg);
 
    clear->ColorLocation = _mesa_GetUniformLocation(clear->ShaderProg,
@@ -2613,6 +2614,7 @@ _mesa_meta_setup_texture_coords(GLenum faceTarget,
             break;
          default:
             assert(0);
+            unreachable();
          }
 
          coord[3] = (float) (slice / 6);
diff --git a/mesalib/src/mesa/drivers/common/meta_blit.c b/mesalib/src/mesa/drivers/common/meta_blit.c
index f26ef93c1..bbf0c3c45 100644
--- a/mesalib/src/mesa/drivers/common/meta_blit.c
+++ b/mesalib/src/mesa/drivers/common/meta_blit.c
@@ -407,7 +407,7 @@ blitframebuffer_texture(struct gl_context *ctx,
       }
    } else {
       GLenum tex_base_format;
-      int srcW = abs(srcY1 - srcY0);
+      int srcW = abs(srcX1 - srcX0);
       int srcH = abs(srcY1 - srcY0);
       /* Fall back to doing a CopyTexSubImage to get the destination
        * renderbuffer into a texture.
diff --git a/mesalib/src/mesa/drivers/common/meta_generate_mipmap.c b/mesalib/src/mesa/drivers/common/meta_generate_mipmap.c
index d12806c3d..4b1718df9 100644
--- a/mesalib/src/mesa/drivers/common/meta_generate_mipmap.c
+++ b/mesalib/src/mesa/drivers/common/meta_generate_mipmap.c
@@ -43,6 +43,7 @@
 #include "main/varray.h"
 #include "main/viewport.h"
 #include "drivers/common/meta.h"
+#include "program/prog_instruction.h"
 
 
 /**
@@ -168,6 +169,8 @@ _mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
    GLenum faceTarget;
    GLuint dstLevel;
    GLuint samplerSave;
+   GLint swizzle[4];
+   GLboolean swizzleSaved = GL_FALSE;
 
    if (fallback_required(ctx, target, texObj)) {
       _mesa_generate_mipmap(ctx, target, texObj);
@@ -231,6 +234,13 @@ _mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
 
    _mesa_TexParameteri(target, GL_GENERATE_MIPMAP, GL_FALSE);
 
+   if (texObj->_Swizzle != SWIZZLE_NOOP) {
+      static const GLint swizzleNoop[4] = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA };
+      memcpy(swizzle, texObj->Swizzle, sizeof(swizzle));
+      swizzleSaved = GL_TRUE;
+      _mesa_TexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzleNoop);
+   }
+
    /* Silence valgrind warnings about reading uninitialized stack. */
    memset(verts, 0, sizeof(verts));
 
@@ -347,4 +357,6 @@ _mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
    _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave);
    if (genMipmapSave)
       _mesa_TexParameteri(target, GL_GENERATE_MIPMAP, genMipmapSave);
+   if (swizzleSaved)
+      _mesa_TexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzle);
 }
diff --git a/mesalib/src/mesa/drivers/dri/Android.mk b/mesalib/src/mesa/drivers/dri/Android.mk
index 9adf0b386..e0cf51c58 100644
--- a/mesalib/src/mesa/drivers/dri/Android.mk
+++ b/mesalib/src/mesa/drivers/dri/Android.mk
@@ -43,6 +43,7 @@ MESA_DRI_C_INCLUDES := \
 
 MESA_DRI_WHOLE_STATIC_LIBRARIES := \
 	libmesa_glsl \
+	libmegadriver_stub \
 	libmesa_dri_common \
 	libmesa_dricore
 
diff --git a/mesalib/src/mesa/drivers/dri/common/Android.mk b/mesalib/src/mesa/drivers/dri/common/Android.mk
index 0489a32de..a172a0bc6 100644
--- a/mesalib/src/mesa/drivers/dri/common/Android.mk
+++ b/mesalib/src/mesa/drivers/dri/common/Android.mk
@@ -86,3 +86,20 @@ $(intermediates)/xmlpool/options.h: $$(PRIVATE_SCRIPT) $$(PRIVATE_TEMPLATE_HEADE
 
 include $(MESA_COMMON_MK)
 include $(BUILD_STATIC_LIBRARY)
+
+#
+# Build libmegadriver_stub
+#
+
+include $(CLEAR_VARS)
+include $(LOCAL_PATH)/Makefile.sources
+
+LOCAL_MODULE := libmegadriver_stub
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+LOCAL_C_INCLUDES := \
+    $(MESA_DRI_C_INCLUDES)
+
+LOCAL_SRC_FILES := $(megadriver_stub_FILES)
+
+include $(MESA_COMMON_MK)
+include $(BUILD_STATIC_LIBRARY)
diff --git a/mesalib/src/mesa/drivers/dri/common/Makefile.am b/mesalib/src/mesa/drivers/dri/common/Makefile.am
index c98ccf7b8..7222a96c6 100644
--- a/mesalib/src/mesa/drivers/dri/common/Makefile.am
+++ b/mesalib/src/mesa/drivers/dri/common/Makefile.am
@@ -42,7 +42,7 @@ libdricommon_la_SOURCES = $(DRI_COMMON_FILES)
 libdri_test_stubs_la_SOURCES = $(test_stubs_FILES)
 libdri_test_stubs_la_CFLAGS = $(AM_CFLAGS) -DNO_MAIN
 
-libmegadriver_stub_la_SOURCES = megadriver_stub.c
+libmegadriver_stub_la_SOURCES = $(megadriver_stub_FILES)
 
 sysconf_DATA = drirc
 
diff --git a/mesalib/src/mesa/drivers/dri/common/Makefile.sources b/mesalib/src/mesa/drivers/dri/common/Makefile.sources
index 8469b4950..43b289e90 100644
--- a/mesalib/src/mesa/drivers/dri/common/Makefile.sources
+++ b/mesalib/src/mesa/drivers/dri/common/Makefile.sources
@@ -14,3 +14,6 @@ mesa_dri_common_INCLUDES := \
 
 test_stubs_FILES := \
 	dri_test.c
+
+megadriver_stub_FILES := \
+	megadriver_stub.c
diff --git a/mesalib/src/mesa/main/api_arrayelt.c b/mesalib/src/mesa/main/api_arrayelt.c
index 05cbc0f1f..ebeba8883 100644
--- a/mesalib/src/mesa/main/api_arrayelt.c
+++ b/mesalib/src/mesa/main/api_arrayelt.c
@@ -43,18 +43,21 @@
 #include "macros.h"
 #include "mtypes.h"
 #include "main/dispatch.h"
+#include "varray.h"
 
 typedef void (GLAPIENTRY *array_func)( const void * );
 
 typedef struct {
-   const struct gl_client_array *array;
+   const struct gl_vertex_attrib_array *array;
+   const struct gl_vertex_buffer_binding *binding;
    int offset;
 } AEarray;
 
 typedef void (GLAPIENTRY *attrib_func)( GLuint indx, const void *data );
 
 typedef struct {
-   const struct gl_client_array *array;
+   const struct gl_vertex_attrib_array *array;
+   const struct gl_vertex_buffer_binding *binding;
    attrib_func func;
    GLuint index;
 } AEattrib;
@@ -1470,18 +1473,6 @@ check_vbo(AEcontext *actx, struct gl_buffer_object *vbo)
 }
 
 
-static inline void
-update_derived_client_arrays(struct gl_context *ctx)
-{
-   struct gl_vertex_array_object *vao = ctx->Array.VAO;
-
-   if (vao->NewArrays) {
-      _mesa_update_vao_client_arrays(ctx, vao);
-      vao->NewArrays = 0;
-   }
-}
-
-
 /**
  * Make a list of per-vertex functions to call for each glArrayElement call.
  * These functions access the array data (i.e. glVertex, glColor, glNormal,
@@ -1500,67 +1491,81 @@ _ae_update_state(struct gl_context *ctx)
    actx->nr_vbos = 0;
 
    /* conventional vertex arrays */
-   if (vao->_VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) {
-      aa->array = &vao->_VertexAttrib[VERT_ATTRIB_COLOR_INDEX];
+   if (vao->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) {
+      aa->array = &vao->VertexAttrib[VERT_ATTRIB_COLOR_INDEX];
+      aa->binding = &vao->VertexBinding[aa->array->VertexBinding];
       aa->offset = IndexFuncs[TYPE_IDX(aa->array->Type)];
-      check_vbo(actx, aa->array->BufferObj);
+      check_vbo(actx, aa->binding->BufferObj);
       aa++;
    }
-   if (vao->_VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) {
-      aa->array = &vao->_VertexAttrib[VERT_ATTRIB_EDGEFLAG];
+
+   if (vao->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) {
+      aa->array = &vao->VertexAttrib[VERT_ATTRIB_EDGEFLAG];
+      aa->binding = &vao->VertexBinding[aa->array->VertexBinding];
       aa->offset = _gloffset_EdgeFlagv;
-      check_vbo(actx, aa->array->BufferObj);
+      check_vbo(actx, aa->binding->BufferObj);
       aa++;
    }
-   if (vao->_VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
-      aa->array = &vao->_VertexAttrib[VERT_ATTRIB_NORMAL];
+
+   if (vao->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
+      aa->array = &vao->VertexAttrib[VERT_ATTRIB_NORMAL];
+      aa->binding = &vao->VertexBinding[aa->array->VertexBinding];
       aa->offset = NormalFuncs[TYPE_IDX(aa->array->Type)];
-      check_vbo(actx, aa->array->BufferObj);
+      check_vbo(actx, aa->binding->BufferObj);
       aa++;
    }
-   if (vao->_VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
-      aa->array = &vao->_VertexAttrib[VERT_ATTRIB_COLOR0];
+
+   if (vao->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
+      aa->array = &vao->VertexAttrib[VERT_ATTRIB_COLOR0];
+      aa->binding = &vao->VertexBinding[aa->array->VertexBinding];
       aa->offset = ColorFuncs[aa->array->Size-3][TYPE_IDX(aa->array->Type)];
-      check_vbo(actx, aa->array->BufferObj);
+      check_vbo(actx, aa->binding->BufferObj);
       aa++;
    }
-   if (vao->_VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
-      aa->array = &vao->_VertexAttrib[VERT_ATTRIB_COLOR1];
+
+   if (vao->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
+      aa->array = &vao->VertexAttrib[VERT_ATTRIB_COLOR1];
+      aa->binding = &vao->VertexBinding[aa->array->VertexBinding];
       aa->offset = SecondaryColorFuncs[TYPE_IDX(aa->array->Type)];
-      check_vbo(actx, aa->array->BufferObj);
+      check_vbo(actx, aa->binding->BufferObj);
       aa++;
    }
-   if (vao->_VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
-      aa->array = &vao->_VertexAttrib[VERT_ATTRIB_FOG];
+
+   if (vao->VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
+      aa->array = &vao->VertexAttrib[VERT_ATTRIB_FOG];
+      aa->binding = &vao->VertexBinding[aa->array->VertexBinding];
       aa->offset = FogCoordFuncs[TYPE_IDX(aa->array->Type)];
-      check_vbo(actx, aa->array->BufferObj);
+      check_vbo(actx, aa->binding->BufferObj);
       aa++;
    }
+
    for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
-      struct gl_client_array *attribArray =
-         &vao->_VertexAttrib[VERT_ATTRIB_TEX(i)];
+      struct gl_vertex_attrib_array *attribArray =
+         &vao->VertexAttrib[VERT_ATTRIB_TEX(i)];
       if (attribArray->Enabled) {
          /* NOTE: we use generic glVertexAttribNV functions here.
           * If we ever remove GL_NV_vertex_program this will have to change.
           */
          at->array = attribArray;
+         at->binding = &vao->VertexBinding[attribArray->VertexBinding];
          ASSERT(!at->array->Normalized);
          at->func = AttribFuncsNV[at->array->Normalized]
                                  [at->array->Size-1]
                                  [TYPE_IDX(at->array->Type)];
          at->index = VERT_ATTRIB_TEX0 + i;
-	 check_vbo(actx, at->array->BufferObj);
+	 check_vbo(actx, at->binding->BufferObj);
          at++;
       }
    }
 
    /* generic vertex attribute arrays */
    for (i = 1; i < VERT_ATTRIB_GENERIC_MAX; i++) {  /* skip zero! */
-      struct gl_client_array *attribArray =
-         &vao->_VertexAttrib[VERT_ATTRIB_GENERIC(i)];
+      struct gl_vertex_attrib_array *attribArray =
+         &vao->VertexAttrib[VERT_ATTRIB_GENERIC(i)];
       if (attribArray->Enabled) {
          GLint intOrNorm;
          at->array = attribArray;
+         at->binding = &vao->VertexBinding[attribArray->VertexBinding];
          /* Note: we can't grab the _glapi_Dispatch->VertexAttrib1fvNV
           * function pointer here (for float arrays) since the pointer may
           * change from one execution of _ae_ArrayElement() to
@@ -1578,26 +1583,28 @@ _ae_update_state(struct gl_context *ctx)
             [TYPE_IDX(at->array->Type)];
 
          at->index = i;
-	 check_vbo(actx, at->array->BufferObj);
+	 check_vbo(actx, at->binding->BufferObj);
          at++;
       }
    }
 
    /* finally, vertex position */
-   if (vao->_VertexAttrib[VERT_ATTRIB_GENERIC0].Enabled) {
+   if (vao->VertexAttrib[VERT_ATTRIB_GENERIC0].Enabled) {
       /* Use glVertex(v) instead of glVertexAttrib(0, v) to be sure it's
        * issued as the last (provoking) attribute).
        */
-      aa->array = &vao->_VertexAttrib[VERT_ATTRIB_GENERIC0];
+      aa->array = &vao->VertexAttrib[VERT_ATTRIB_GENERIC0];
+      aa->binding = &vao->VertexBinding[aa->array->VertexBinding];
       assert(aa->array->Size >= 2); /* XXX fix someday? */
       aa->offset = VertexFuncs[aa->array->Size-2][TYPE_IDX(aa->array->Type)];
-      check_vbo(actx, aa->array->BufferObj);
+      check_vbo(actx, aa->binding->BufferObj);
       aa++;
    }
-   else if (vao->_VertexAttrib[VERT_ATTRIB_POS].Enabled) {
-      aa->array = &vao->_VertexAttrib[VERT_ATTRIB_POS];
+   else if (vao->VertexAttrib[VERT_ATTRIB_POS].Enabled) {
+      aa->array = &vao->VertexAttrib[VERT_ATTRIB_POS];
+      aa->binding = &vao->VertexBinding[aa->array->VertexBinding];
       aa->offset = VertexFuncs[aa->array->Size-2][TYPE_IDX(aa->array->Type)];
-      check_vbo(actx, aa->array->BufferObj);
+      check_vbo(actx, aa->binding->BufferObj);
       aa++;
    }
 
@@ -1625,8 +1632,6 @@ _ae_map_vbos(struct gl_context *ctx)
    if (actx->mapped_vbos)
       return;
 
-   update_derived_client_arrays(ctx);
-
    if (actx->NewState)
       _ae_update_state(ctx);
 
@@ -1679,8 +1684,6 @@ _ae_ArrayElement(GLint elt)
    const struct _glapi_table * const disp = GET_DISPATCH();
    GLboolean do_map;
 
-   update_derived_client_arrays(ctx);
-
    /* If PrimitiveRestart is enabled and the index is the RestartIndex
     * then we call PrimitiveRestartNV and return.
     */
@@ -1703,18 +1706,18 @@ _ae_ArrayElement(GLint elt)
    /* emit generic attribute elements */
    for (at = actx->attribs; at->func; at++) {
       const GLubyte *src
-         = ADD_POINTERS(at->array->BufferObj->Mappings[MAP_INTERNAL].Pointer,
-                        at->array->Ptr)
-         + elt * at->array->StrideB;
+         = ADD_POINTERS(at->binding->BufferObj->Mappings[MAP_INTERNAL].Pointer,
+                        _mesa_vertex_attrib_address(at->array, at->binding))
+         + elt * at->binding->Stride;
       at->func(at->index, src);
    }
 
    /* emit conventional arrays elements */
    for (aa = actx->arrays; aa->offset != -1 ; aa++) {
       const GLubyte *src
-         = ADD_POINTERS(aa->array->BufferObj->Mappings[MAP_INTERNAL].Pointer,
-                        aa->array->Ptr)
-         + elt * aa->array->StrideB;
+         = ADD_POINTERS(aa->binding->BufferObj->Mappings[MAP_INTERNAL].Pointer,
+                        _mesa_vertex_attrib_address(aa->array, aa->binding))
+         + elt * aa->binding->Stride;
       CALL_by_offset(disp, (array_func), aa->offset, ((const void *) src));
    }
 
diff --git a/mesalib/src/mesa/main/clear.c b/mesalib/src/mesa/main/clear.c
index 9df1f5e09..cf93418d1 100644
--- a/mesalib/src/mesa/main/clear.c
+++ b/mesalib/src/mesa/main/clear.c
@@ -180,11 +180,6 @@ _mesa_Clear( GLbitfield mask )
       return;
    }
 
-   if (ctx->DrawBuffer->Width == 0 || ctx->DrawBuffer->Height == 0 ||
-       ctx->DrawBuffer->_Xmin >= ctx->DrawBuffer->_Xmax ||
-       ctx->DrawBuffer->_Ymin >= ctx->DrawBuffer->_Ymax)
-      return;
-
    if (ctx->RasterDiscard)
       return;
 
diff --git a/mesalib/src/mesa/main/context.c b/mesalib/src/mesa/main/context.c
index 8eb426d59..244e63ede 100644
--- a/mesalib/src/mesa/main/context.c
+++ b/mesalib/src/mesa/main/context.c
@@ -396,6 +396,8 @@ one_time_init( struct gl_context *ctx )
       assert( sizeof(GLint) == 4 );
       assert( sizeof(GLuint) == 4 );
 
+      _mesa_one_time_init_extension_overrides();
+
       _mesa_get_cpu_features();
 
       for (i = 0; i < 256; i++) {
@@ -610,6 +612,10 @@ _mesa_init_constants(struct gl_context *ctx)
    ctx->Const.MaxUniformBlockSize = 16384;
    ctx->Const.UniformBufferOffsetAlignment = 1;
 
+   /* GL_ARB_explicit_uniform_location, GL_MAX_UNIFORM_LOCATIONS */
+   ctx->Const.MaxUserAssignableUniformLocations =
+      4 * MESA_SHADER_STAGES * MAX_UNIFORMS;
+
    for (i = 0; i < MESA_SHADER_STAGES; i++)
       init_program_limits(ctx, i, &ctx->Const.Program[i]);
 
diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c
index c2ff7e3b7..25e3dab4f 100644
--- a/mesalib/src/mesa/main/extensions.c
+++ b/mesalib/src/mesa/main/extensions.c
@@ -37,6 +37,11 @@
 #include "macros.h"
 #include "mtypes.h"
 
+struct gl_extensions _mesa_extension_override_enables;
+struct gl_extensions _mesa_extension_override_disables;
+static char *extra_extensions = NULL;
+static char *cant_disable_extensions = NULL;
+
 enum {
    DISABLE = 0,
    GLL = 1 << API_OPENGL_COMPAT,       /* GL Legacy / Compatibility */
@@ -86,6 +91,7 @@ static const struct extension extension_table[] = {
    { "GL_ARB_buffer_storage",                      o(ARB_buffer_storage),                      GL,             2013 },
    { "GL_ARB_clear_buffer_object",                 o(dummy_true),                              GL,             2012 },
    { "GL_ARB_color_buffer_float",                  o(ARB_color_buffer_float),                  GL,             2004 },
+   { "GL_ARB_compressed_texture_pixel_storage",    o(dummy_true),                              GL,             2011 },
    { "GL_ARB_compute_shader",                      o(ARB_compute_shader),                      GL,             2012 },
    { "GL_ARB_copy_buffer",                         o(dummy_true),                              GL,             2008 },
    { "GL_ARB_conservative_depth",                  o(ARB_conservative_depth),                  GL,             2011 },
@@ -99,7 +105,9 @@ static const struct extension extension_table[] = {
    { "GL_ARB_draw_indirect",                       o(ARB_draw_indirect),                       GLC,            2010 },
    { "GL_ARB_draw_instanced",                      o(ARB_draw_instanced),                      GL,             2008 },
    { "GL_ARB_explicit_attrib_location",            o(ARB_explicit_attrib_location),            GL,             2009 },
+   { "GL_ARB_explicit_uniform_location",           o(ARB_explicit_uniform_location),           GL,             2012 },
    { "GL_ARB_fragment_coord_conventions",          o(ARB_fragment_coord_conventions),          GL,             2009 },
+   { "GL_ARB_fragment_layer_viewport",             o(ARB_fragment_layer_viewport),             GLC,            2012 },
    { "GL_ARB_fragment_program",                    o(ARB_fragment_program),                    GLL,            2002 },
    { "GL_ARB_fragment_program_shadow",             o(ARB_fragment_program_shadow),             GLL,            2003 },
    { "GL_ARB_fragment_shader",                     o(ARB_fragment_shader),                     GL,             2002 },
@@ -388,6 +396,31 @@ name_to_offset(const char* name)
    return 0;
 }
 
+/**
+ * Overrides extensions in \c ctx based on the values in
+ * _mesa_extension_override_enables and _mesa_extension_override_disables.
+ */
+static void
+override_extensions_in_context(struct gl_context *ctx)
+{
+   const struct extension *i;
+   const GLboolean *enables =
+      (GLboolean*) &_mesa_extension_override_enables;
+   const GLboolean *disables =
+      (GLboolean*) &_mesa_extension_override_disables;
+   GLboolean *ctx_ext = (GLboolean*)&ctx->Extensions;
+
+   for (i = extension_table; i->name != 0; ++i) {
+      size_t offset = i->offset;
+      assert(!enables[offset] || !disables[offset]);
+      if (enables[offset]) {
+         ctx_ext[offset] = 1;
+      } else if (disables[offset]) {
+         ctx_ext[offset] = 0;
+      }
+   }
+}
+
 
 /**
  * Enable all extensions suitable for a software-only renderer.
@@ -473,34 +506,19 @@ _mesa_enable_sw_extensions(struct gl_context *ctx)
 
 /**
  * Either enable or disable the named extension.
- * \return GL_TRUE for success, GL_FALSE if invalid extension name
+ * \return offset of extensions withint `ext' or 0 if extension is not known
  */
-static GLboolean
-set_extension( struct gl_context *ctx, const char *name, GLboolean state )
+static size_t
+set_extension(struct gl_extensions *ext, const char *name, GLboolean state)
 {
    size_t offset;
 
-   if (ctx->Extensions.String) {
-      /* The string was already queried - can't change it now! */
-      _mesa_problem(ctx, "Trying to enable/disable extension after "
-                    "glGetString(GL_EXTENSIONS): %s", name);
-      return GL_FALSE;
-   }
-
    offset = name_to_offset(name);
-   if (offset == 0) {
-      _mesa_problem(ctx, "Trying to enable/disable unknown extension %s",
-	            name);
-      return GL_FALSE;
-   } else if (offset == o(dummy_true) && state == GL_FALSE) {
-      _mesa_problem(ctx, "Trying to disable a permanently enabled extension: "
-	                  "%s", name);
-      return GL_FALSE;
-   } else {
-      GLboolean *base = (GLboolean *) &ctx->Extensions;
-      base[offset] = state;
-      return GL_TRUE;
+   if (offset != 0 && (offset != o(dummy_true) || state != GL_FALSE)) {
+      ((GLboolean *) ext)[offset] = state;
    }
+
+   return offset;
 }
 
 /**
@@ -513,32 +531,80 @@ set_extension( struct gl_context *ctx, const char *name, GLboolean state )
  *    - Enable recognized extension names that are not prefixed.
  *    - Collect unrecognized extension names in a new string.
  *
+ * \c MESA_EXTENSION_OVERRIDE was previously parsed during
+ * _mesa_one_time_init_extension_overrides. We just use the results of that
+ * parsing in this function.
+ *
  * \return Space-separated list of unrecognized extension names (which must
  *    be freed). Does not return \c NULL.
  */
 static char *
 get_extension_override( struct gl_context *ctx )
 {
+   override_extensions_in_context(ctx);
+
+   if (cant_disable_extensions != NULL) {
+      _mesa_problem(ctx,
+                    "Trying to disable permanently enabled extensions: %s",
+	            cant_disable_extensions);
+   }
+
+   if (extra_extensions == NULL) {
+      return calloc(1, sizeof(char));
+   } else {
+      _mesa_problem(ctx, "Trying to enable unknown extensions: %s",
+                    extra_extensions);
+      return strdup(extra_extensions);
+   }
+}
+
+
+/**
+ * \brief Free extra_extensions and cant_disable_extensions strings
+ *
+ * These strings are allocated early during the first context creation by
+ * _mesa_one_time_init_extension_overrides.
+ */
+static void
+free_unknown_extensions_strings(void)
+{
+   free(extra_extensions);
+   free(cant_disable_extensions);
+}
+
+
+/**
+ * \brief Initialize extension override tables.
+ *
+ * This should be called one time early during first context initialization.
+ */
+void
+_mesa_one_time_init_extension_overrides(void)
+{
    const char *env_const = _mesa_getenv("MESA_EXTENSION_OVERRIDE");
    char *env;
    char *ext;
-   char *extra_exts;
    int len;
+   size_t offset;
+
+   atexit(free_unknown_extensions_strings);
+
+   memset(&_mesa_extension_override_enables, 0, sizeof(struct gl_extensions));
+   memset(&_mesa_extension_override_disables, 0, sizeof(struct gl_extensions));
 
    if (env_const == NULL) {
-      /* Return the empty string rather than NULL. This simplifies the logic
-       * of client functions. */
-      return calloc(4, sizeof(char));
+      return;
    }
 
    /* extra_exts: List of unrecognized extensions. */
-   extra_exts = calloc(ALIGN(strlen(env_const) + 2, 4), sizeof(char));
+   extra_extensions = calloc(ALIGN(strlen(env_const) + 2, 4), sizeof(char));
+   cant_disable_extensions = calloc(ALIGN(strlen(env_const) + 2, 4), sizeof(char));
 
    /* Copy env_const because strtok() is destructive. */
    env = strdup(env_const);
    for (ext = strtok(env, " "); ext != NULL; ext = strtok(NULL, " ")) {
       int enable;
-      int recognized;
+      bool recognized;
       switch (ext[0]) {
       case '+':
          enable = 1;
@@ -552,21 +618,43 @@ get_extension_override( struct gl_context *ctx )
          enable = 1;
          break;
       }
-      recognized = set_extension(ctx, ext, enable);
+
+      offset = set_extension(&_mesa_extension_override_enables, ext, enable);
+      if (offset != 0 && (offset != o(dummy_true) || enable != GL_FALSE)) {
+         ((GLboolean *) &_mesa_extension_override_disables)[offset] = !enable;
+         recognized = true;
+      } else {
+         recognized = false;
+      }
+
       if (!recognized) {
-         strcat(extra_exts, ext);
-         strcat(extra_exts, " ");
+         if (enable) {
+            strcat(extra_extensions, ext);
+            strcat(extra_extensions, " ");
+         } else if (offset == o(dummy_true)) {
+            strcat(cant_disable_extensions, ext);
+            strcat(cant_disable_extensions, " ");
+         }
       }
    }
 
    free(env);
 
-   /* Remove trailing space. */
-   len = strlen(extra_exts);
-   if (len > 0 && extra_exts[len - 1] == ' ')
-      extra_exts[len - 1] = '\0';
-
-   return extra_exts;
+   /* Remove trailing space, and free if unused. */
+   len = strlen(extra_extensions);
+   if (len == 0) {
+      free(extra_extensions);
+      extra_extensions = NULL;
+   } else if (extra_extensions[len - 1] == ' ') {
+      extra_extensions[len - 1] = '\0';
+   }
+   len = strlen(cant_disable_extensions);
+   if (len == 0) {
+      free(cant_disable_extensions);
+      cant_disable_extensions = NULL;
+   } else if (cant_disable_extensions[len - 1] == ' ') {
+      cant_disable_extensions[len - 1] = '\0';
+   }
 }
 
 
diff --git a/mesalib/src/mesa/main/extensions.h b/mesalib/src/mesa/main/extensions.h
index a8cc2a41e..3a404d2e0 100644
--- a/mesalib/src/mesa/main/extensions.h
+++ b/mesalib/src/mesa/main/extensions.h
@@ -39,9 +39,12 @@
 #include "glheader.h"
 
 struct gl_context;
+struct gl_extensions;
 
 extern void _mesa_enable_sw_extensions(struct gl_context *ctx);
 
+extern void _mesa_one_time_init_extension_overrides(void);
+
 extern void _mesa_init_extensions(struct gl_context *ctx);
 
 extern GLubyte *_mesa_make_extension_string(struct gl_context *ctx);
@@ -52,4 +55,7 @@ _mesa_get_extension_count(struct gl_context *ctx);
 extern const GLubyte *
 _mesa_get_enabled_extension(struct gl_context *ctx, GLuint index);
 
+extern struct gl_extensions _mesa_extension_override_enables;
+extern struct gl_extensions _mesa_extension_override_disables;
+
 #endif
diff --git a/mesalib/src/mesa/main/ff_fragment_shader.cpp b/mesalib/src/mesa/main/ff_fragment_shader.cpp
index 8c360970f..211583738 100644
--- a/mesalib/src/mesa/main/ff_fragment_shader.cpp
+++ b/mesalib/src/mesa/main/ff_fragment_shader.cpp
@@ -877,14 +877,15 @@ emit_texenv(texenv_fragment_program *p, GLuint unit)
 	 shift = new(p->mem_ctx) ir_constant((float)(1 << rgb_shift));
       }
       else {
-	 float const_data[4] = {
-	    float(1 << rgb_shift),
-	    float(1 << rgb_shift),
-	    float(1 << rgb_shift),
-	    float(1 << alpha_shift)
-	 };
-	 shift = new(p->mem_ctx) ir_constant(glsl_type::vec4_type,
-					     (ir_constant_data *)const_data);
+         ir_constant_data const_data;
+
+         const_data.f[0] = float(1 << rgb_shift);
+         const_data.f[1] = float(1 << rgb_shift);
+         const_data.f[2] = float(1 << rgb_shift);
+         const_data.f[3] = float(1 << alpha_shift);
+
+         shift = new(p->mem_ctx) ir_constant(glsl_type::vec4_type,
+                                             &const_data);
       }
 
       return saturate(mul(deref, shift));
diff --git a/mesalib/src/mesa/main/get.c b/mesalib/src/mesa/main/get.c
index 9b56edb74..0e2d8f687 100644
--- a/mesalib/src/mesa/main/get.c
+++ b/mesalib/src/mesa/main/get.c
@@ -278,11 +278,6 @@ static const int extra_flush_current[] = {
    EXTRA_END
 };
 
-static const int extra_EXT_texture_integer[] = {
-   EXT(EXT_texture_integer),
-   EXTRA_END
-};
-
 static const int extra_EXT_texture_integer_and_new_buffers[] = {
    EXT(EXT_texture_integer),
    EXTRA_NEW_BUFFERS,
@@ -395,6 +390,7 @@ EXTRA_EXT(ARB_compute_shader);
 EXTRA_EXT(ARB_gpu_shader5);
 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
 EXTRA_EXT(INTEL_performance_query);
+EXTRA_EXT(ARB_explicit_uniform_location);
 
 static const int
 extra_ARB_color_buffer_float_or_glcore[] = {
diff --git a/mesalib/src/mesa/main/get_hash_params.py b/mesalib/src/mesa/main/get_hash_params.py
index c7a6e02af..d45962d95 100644
--- a/mesalib/src/mesa/main/get_hash_params.py
+++ b/mesalib/src/mesa/main/get_hash_params.py
@@ -480,6 +480,7 @@ descriptor=[
   [ "MAX_LIST_NESTING", "CONST(MAX_LIST_NESTING), NO_EXTRA" ],
   [ "MAX_NAME_STACK_DEPTH", "CONST(MAX_NAME_STACK_DEPTH), NO_EXTRA" ],
   [ "MAX_PIXEL_MAP_TABLE", "CONST(MAX_PIXEL_MAP_TABLE), NO_EXTRA" ],
+  [ "MAX_UNIFORM_LOCATIONS", "CONTEXT_INT(Const.MaxUserAssignableUniformLocations), extra_ARB_explicit_uniform_location" ],
   [ "NAME_STACK_DEPTH", "CONTEXT_INT(Select.NameStackDepth), NO_EXTRA" ],
   [ "PACK_LSB_FIRST", "CONTEXT_BOOL(Pack.LsbFirst), NO_EXTRA" ],
   [ "PACK_SWAP_BYTES", "CONTEXT_BOOL(Pack.SwapBytes), NO_EXTRA" ],
@@ -541,6 +542,16 @@ descriptor=[
   [ "ARRAY_ELEMENT_LOCK_FIRST_EXT", "CONTEXT_INT(Array.LockFirst), NO_EXTRA" ],
   [ "ARRAY_ELEMENT_LOCK_COUNT_EXT", "CONTEXT_INT(Array.LockCount), NO_EXTRA" ],
 
+# GL_ARB_compressed_texture_pixel_storage
+  [ "UNPACK_COMPRESSED_BLOCK_WIDTH", "CONTEXT_INT(Unpack.CompressedBlockWidth), NO_EXTRA" ],
+  [ "UNPACK_COMPRESSED_BLOCK_HEIGHT", "CONTEXT_INT(Unpack.CompressedBlockHeight), NO_EXTRA" ],
+  [ "UNPACK_COMPRESSED_BLOCK_DEPTH", "CONTEXT_INT(Unpack.CompressedBlockDepth), NO_EXTRA" ],
+  [ "UNPACK_COMPRESSED_BLOCK_SIZE", "CONTEXT_INT(Unpack.CompressedBlockSize), NO_EXTRA" ],
+  [ "PACK_COMPRESSED_BLOCK_WIDTH", "CONTEXT_INT(Pack.CompressedBlockWidth), NO_EXTRA" ],
+  [ "PACK_COMPRESSED_BLOCK_HEIGHT", "CONTEXT_INT(Pack.CompressedBlockHeight), NO_EXTRA" ],
+  [ "PACK_COMPRESSED_BLOCK_DEPTH", "CONTEXT_INT(Pack.CompressedBlockDepth), NO_EXTRA" ],
+  [ "PACK_COMPRESSED_BLOCK_SIZE", "CONTEXT_INT(Pack.CompressedBlockSize), NO_EXTRA" ],
+
 # GL_ARB_transpose_matrix
   [ "TRANSPOSE_MODELVIEW_MATRIX_ARB", "CONTEXT_MATRIX_T(ModelviewMatrixStack), NO_EXTRA" ],
   [ "TRANSPOSE_PROJECTION_MATRIX_ARB", "CONTEXT_MATRIX_T(ProjectionMatrixStack.Top), NO_EXTRA" ],
diff --git a/mesalib/src/mesa/main/glformats.c b/mesalib/src/mesa/main/glformats.c
index 9bb341cc0..aee336e12 100644
--- a/mesalib/src/mesa/main/glformats.c
+++ b/mesalib/src/mesa/main/glformats.c
@@ -458,36 +458,6 @@ _mesa_is_enum_format_integer(GLenum format)
 }
 
 
-/**
- * Test if the given type is an integer (non-normalized) format.
- */
-GLboolean
-_mesa_is_type_integer(GLenum type)
-{
-   switch (type) {
-   case GL_INT:
-   case GL_UNSIGNED_INT:
-   case GL_SHORT:
-   case GL_UNSIGNED_SHORT:
-   case GL_BYTE:
-   case GL_UNSIGNED_BYTE:
-      return GL_TRUE;
-   default:
-      return GL_FALSE;
-   }
-}
-
-
-/**
- * Test if the given format or type is an integer (non-normalized) format.
- */
-extern GLboolean
-_mesa_is_enum_format_or_type_integer(GLenum format, GLenum type)
-{
-   return _mesa_is_enum_format_integer(format) || _mesa_is_type_integer(type);
-}
-
-
 GLboolean
 _mesa_is_type_unsigned(GLenum type)
 {
diff --git a/mesalib/src/mesa/main/glformats.h b/mesalib/src/mesa/main/glformats.h
index af1089931..ccbce2dab 100644
--- a/mesalib/src/mesa/main/glformats.h
+++ b/mesalib/src/mesa/main/glformats.h
@@ -54,9 +54,6 @@ extern GLint
 _mesa_bytes_per_vertex_attrib(GLint comps, GLenum type);
 
 extern GLboolean
-_mesa_is_type_integer(GLenum type);
-
-extern GLboolean
 _mesa_is_type_unsigned(GLenum type);
 
 extern GLboolean
@@ -69,9 +66,6 @@ extern GLboolean
 _mesa_is_enum_format_signed_int(GLenum format);
 
 extern GLboolean
-_mesa_is_enum_format_or_type_integer(GLenum format, GLenum type);
-
-extern GLboolean
 _mesa_is_color_format(GLenum format);
 
 extern GLboolean
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index 917d071a2..4762d9616 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -1502,6 +1502,10 @@ struct gl_pixelstore_attrib
    GLboolean SwapBytes;
    GLboolean LsbFirst;
    GLboolean Invert;        /**< GL_MESA_pack_invert */
+   GLint CompressedBlockWidth;   /**< GL_ARB_compressed_texture_pixel_storage */
+   GLint CompressedBlockHeight;
+   GLint CompressedBlockDepth;
+   GLint CompressedBlockSize;
    struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */
 };
 
@@ -2172,7 +2176,7 @@ struct gl_geometry_program
    GLenum InputType;  /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
                            GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
    GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
-   GLboolean UsesEndPrimitive;
+   bool UsesEndPrimitive;
 };
 
 
@@ -2675,7 +2679,7 @@ struct gl_shader_program
       GLboolean UsesClipDistance;
       GLuint ClipDistanceArraySize; /**< Size of the gl_ClipDistance array, or
                                          0 if not present. */
-      GLboolean UsesEndPrimitive;
+      bool UsesEndPrimitive;
    } Geom;
 
    /** Vertex shader state */
@@ -3319,6 +3323,11 @@ struct gl_constants
    GLuint UniformBufferOffsetAlignment;
    /** @} */
 
+   /**
+    * GL_ARB_explicit_uniform_location
+    */
+   GLuint MaxUserAssignableUniformLocations;
+
    /** GL_ARB_geometry_shader4 */
    GLuint MaxGeometryOutputVertices;
    GLuint MaxGeometryTotalOutputComponents;
@@ -3511,11 +3520,13 @@ struct gl_extensions
    GLboolean ARB_draw_indirect;
    GLboolean ARB_draw_instanced;
    GLboolean ARB_fragment_coord_conventions;
+   GLboolean ARB_fragment_layer_viewport;
    GLboolean ARB_fragment_program;
    GLboolean ARB_fragment_program_shadow;
    GLboolean ARB_fragment_shader;
    GLboolean ARB_framebuffer_object;
    GLboolean ARB_explicit_attrib_location;
+   GLboolean ARB_explicit_uniform_location;
    GLboolean ARB_geometry_shader4;
    GLboolean ARB_gpu_shader5;
    GLboolean ARB_half_float_vertex;
diff --git a/mesalib/src/mesa/main/performance_monitor.c b/mesalib/src/mesa/main/performance_monitor.c
index 9d1a6b4d8..c26eda4c6 100644
--- a/mesalib/src/mesa/main/performance_monitor.c
+++ b/mesalib/src/mesa/main/performance_monitor.c
@@ -164,19 +164,6 @@ counterid_to_index(GLuint counterid)
    return counterid - 1;
 }
 
-static inline GLuint
-index_to_counterid(GLuint index)
-{
-   return index + 1;
-}
-
-static inline bool
-counterid_valid(const struct gl_perf_monitor_group *group_obj,
-                GLuint counterid)
-{
-   return get_counter(group_obj, counterid_to_index(counterid)) != NULL;
-}
-
 /*****************************************************************************/
 
 void GLAPIENTRY
diff --git a/mesalib/src/mesa/main/pixelstore.c b/mesalib/src/mesa/main/pixelstore.c
index 0f55bc304..05f6583a4 100644
--- a/mesalib/src/mesa/main/pixelstore.c
+++ b/mesalib/src/mesa/main/pixelstore.c
@@ -45,176 +45,165 @@ _mesa_PixelStorei( GLenum pname, GLint param )
       case GL_PACK_SWAP_BYTES:
          if (!_mesa_is_desktop_gl(ctx))
             goto invalid_enum_error;
-	 if (param == (GLint)ctx->Pack.SwapBytes)
-	    return;
          ctx->Pack.SwapBytes = param ? GL_TRUE : GL_FALSE;
-	 break;
+         break;
       case GL_PACK_LSB_FIRST:
          if (!_mesa_is_desktop_gl(ctx))
             goto invalid_enum_error;
-	 if (param == (GLint)ctx->Pack.LsbFirst)
-	    return;
          ctx->Pack.LsbFirst = param ? GL_TRUE : GL_FALSE;
-	 break;
+         break;
       case GL_PACK_ROW_LENGTH:
          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.RowLength == param)
-	    return;
-	 ctx->Pack.RowLength = param;
-	 break;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.RowLength = param;
+         break;
       case GL_PACK_IMAGE_HEIGHT:
          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
-         if (param<0) {
-            _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.ImageHeight == param)
-	    return;
-	 ctx->Pack.ImageHeight = param;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.ImageHeight = param;
          break;
       case GL_PACK_SKIP_PIXELS:
          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.SkipPixels == param)
-	    return;
-	 ctx->Pack.SkipPixels = param;
-	 break;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.SkipPixels = param;
+         break;
       case GL_PACK_SKIP_ROWS:
          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.SkipRows == param)
-	    return;
-	 ctx->Pack.SkipRows = param;
-	 break;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.SkipRows = param;
+         break;
       case GL_PACK_SKIP_IMAGES:
          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.SkipImages == param)
-	    return;
-	 ctx->Pack.SkipImages = param;
-	 break;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.SkipImages = param;
+         break;
       case GL_PACK_ALIGNMENT:
-         if (param!=1 && param!=2 && param!=4 && param!=8) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.Alignment == param)
-	    return;
-	 ctx->Pack.Alignment = param;
-	 break;
+         if (param!=1 && param!=2 && param!=4 && param!=8)
+            goto invalid_value_error;
+         ctx->Pack.Alignment = param;
+         break;
       case GL_PACK_INVERT_MESA:
-         if (!_mesa_is_desktop_gl(ctx))
+         if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.MESA_pack_invert)
             goto invalid_enum_error;
-         if (!ctx->Extensions.MESA_pack_invert) {
-            _mesa_error( ctx, GL_INVALID_ENUM, "glPixelstore(pname)" );
-            return;
-         }
-         if (ctx->Pack.Invert == param)
-            return;
          ctx->Pack.Invert = param;
          break;
+      case GL_PACK_COMPRESSED_BLOCK_WIDTH:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.CompressedBlockWidth = param;
+         break;
+      case GL_PACK_COMPRESSED_BLOCK_HEIGHT:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.CompressedBlockHeight = param;
+         break;
+      case GL_PACK_COMPRESSED_BLOCK_DEPTH:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.CompressedBlockDepth = param;
+         break;
+      case GL_PACK_COMPRESSED_BLOCK_SIZE:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Pack.CompressedBlockSize = param;
+         break;
 
       case GL_UNPACK_SWAP_BYTES:
          if (!_mesa_is_desktop_gl(ctx))
             goto invalid_enum_error;
-	 if (param == (GLint)ctx->Unpack.SwapBytes)
-	    return;
-	 if ((GLint)ctx->Unpack.SwapBytes == param)
-	    return;
-	 ctx->Unpack.SwapBytes = param ? GL_TRUE : GL_FALSE;
+         ctx->Unpack.SwapBytes = param ? GL_TRUE : GL_FALSE;
          break;
       case GL_UNPACK_LSB_FIRST:
          if (!_mesa_is_desktop_gl(ctx))
             goto invalid_enum_error;
-	 if (param == (GLint)ctx->Unpack.LsbFirst)
-	    return;
-	 if ((GLint)ctx->Unpack.LsbFirst == param)
-	    return;
-	 ctx->Unpack.LsbFirst = param ? GL_TRUE : GL_FALSE;
-	 break;
+         ctx->Unpack.LsbFirst = param ? GL_TRUE : GL_FALSE;
+         break;
       case GL_UNPACK_ROW_LENGTH:
          if (ctx->API == API_OPENGLES)
             goto invalid_enum_error;
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.RowLength == param)
-	    return;
-	 ctx->Unpack.RowLength = param;
-	 break;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Unpack.RowLength = param;
+         break;
       case GL_UNPACK_IMAGE_HEIGHT:
          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
-         if (param<0) {
-            _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.ImageHeight == param)
-	    return;
-
-	 ctx->Unpack.ImageHeight = param;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Unpack.ImageHeight = param;
          break;
       case GL_UNPACK_SKIP_PIXELS:
          if (ctx->API == API_OPENGLES)
             goto invalid_enum_error;
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.SkipPixels == param)
-	    return;
-	 ctx->Unpack.SkipPixels = param;
-	 break;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Unpack.SkipPixels = param;
+         break;
       case GL_UNPACK_SKIP_ROWS:
          if (ctx->API == API_OPENGLES)
             goto invalid_enum_error;
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.SkipRows == param)
-	    return;
-	 ctx->Unpack.SkipRows = param;
-	 break;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Unpack.SkipRows = param;
+         break;
       case GL_UNPACK_SKIP_IMAGES:
          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
             goto invalid_enum_error;
-	 if (param < 0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.SkipImages == param)
-	    return;
-	 ctx->Unpack.SkipImages = param;
-	 break;
+         if (param < 0)
+            goto invalid_value_error;
+         ctx->Unpack.SkipImages = param;
+         break;
       case GL_UNPACK_ALIGNMENT:
-         if (param!=1 && param!=2 && param!=4 && param!=8) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore" );
-	    return;
-	 }
-	 if (ctx->Unpack.Alignment == param)
-	    return;
-	 ctx->Unpack.Alignment = param;
-	 break;
+         if (param!=1 && param!=2 && param!=4 && param!=8)
+            goto invalid_value_error;
+         ctx->Unpack.Alignment = param;
+         break;
+      case GL_UNPACK_COMPRESSED_BLOCK_WIDTH:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Unpack.CompressedBlockWidth = param;
+         break;
+      case GL_UNPACK_COMPRESSED_BLOCK_HEIGHT:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Unpack.CompressedBlockHeight = param;
+         break;
+      case GL_UNPACK_COMPRESSED_BLOCK_DEPTH:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Unpack.CompressedBlockDepth = param;
+         break;
+      case GL_UNPACK_COMPRESSED_BLOCK_SIZE:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         if (param<0)
+            goto invalid_value_error;
+         ctx->Unpack.CompressedBlockSize = param;
+         break;
       default:
          goto invalid_enum_error;
    }
@@ -224,6 +213,10 @@ _mesa_PixelStorei( GLenum pname, GLint param )
 invalid_enum_error:
    _mesa_error( ctx, GL_INVALID_ENUM, "glPixelStore" );
    return;
+
+invalid_value_error:
+   _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+   return;
 }
 
 
@@ -251,6 +244,10 @@ _mesa_init_pixelstore( struct gl_context *ctx )
    ctx->Pack.SwapBytes = GL_FALSE;
    ctx->Pack.LsbFirst = GL_FALSE;
    ctx->Pack.Invert = GL_FALSE;
+   ctx->Pack.CompressedBlockWidth = 0;
+   ctx->Pack.CompressedBlockHeight = 0;
+   ctx->Pack.CompressedBlockDepth = 0;
+   ctx->Pack.CompressedBlockSize = 0;
    _mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj,
                                  ctx->Shared->NullBufferObj);
    ctx->Unpack.Alignment = 4;
@@ -262,6 +259,10 @@ _mesa_init_pixelstore( struct gl_context *ctx )
    ctx->Unpack.SwapBytes = GL_FALSE;
    ctx->Unpack.LsbFirst = GL_FALSE;
    ctx->Unpack.Invert = GL_FALSE;
+   ctx->Unpack.CompressedBlockWidth = 0;
+   ctx->Unpack.CompressedBlockHeight = 0;
+   ctx->Unpack.CompressedBlockDepth = 0;
+   ctx->Unpack.CompressedBlockSize = 0;
    _mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj,
                                  ctx->Shared->NullBufferObj);
 
diff --git a/mesalib/src/mesa/main/shaderapi.c b/mesalib/src/mesa/main/shaderapi.c
index 28739daeb..2ec2444da 100644
--- a/mesalib/src/mesa/main/shaderapi.c
+++ b/mesalib/src/mesa/main/shaderapi.c
@@ -1392,7 +1392,7 @@ _mesa_LinkProgram(GLhandleARB programObj)
 static GLcharARB *
 read_shader(const char *fname)
 {
-   const int max = 50*1000;
+   int shader_size = 0;
    FILE *f = fopen(fname, "r");
    GLcharARB *buffer, *shader;
    int len;
@@ -1401,8 +1401,19 @@ read_shader(const char *fname)
       return NULL;
    }
 
-   buffer = malloc(max);
-   len = fread(buffer, 1, max, f);
+   /* allocate enough room for the entire shader */
+   fseek(f, 0, SEEK_END);
+   shader_size = ftell(f);
+   rewind(f);
+   assert(shader_size);
+
+   /* add one for terminating zero */
+   shader_size++;
+
+   buffer = malloc(shader_size);
+   assert(buffer);
+
+   len = fread(buffer, 1, shader_size, f);
    buffer[len] = 0;
 
    fclose(f);
diff --git a/mesalib/src/mesa/main/shaderobj.c b/mesalib/src/mesa/main/shaderobj.c
index b0f0bfa91..c6e852c87 100644
--- a/mesalib/src/mesa/main/shaderobj.c
+++ b/mesalib/src/mesa/main/shaderobj.c
@@ -248,6 +248,7 @@ _mesa_init_shader_program(struct gl_context *ctx, struct gl_shader_program *prog
    prog->Geom.VerticesOut = 0;
    prog->Geom.InputType = GL_TRIANGLES;
    prog->Geom.OutputType = GL_TRIANGLE_STRIP;
+   prog->Geom.UsesEndPrimitive = false;
 
    prog->TransformFeedback.BufferMode = GL_INTERLEAVED_ATTRIBS;
 
diff --git a/mesalib/src/mesa/main/texgetimage.c b/mesalib/src/mesa/main/texgetimage.c
index 1ac707d13..8c0d3a18e 100644
--- a/mesalib/src/mesa/main/texgetimage.c
+++ b/mesalib/src/mesa/main/texgetimage.c
@@ -43,6 +43,7 @@
 #include "texcompress.h"
 #include "texgetimage.h"
 #include "teximage.h"
+#include "texstore.h"
 
 
 
@@ -686,56 +687,62 @@ _mesa_get_compressed_teximage(struct gl_context *ctx,
                               struct gl_texture_image *texImage,
                               GLvoid *img)
 {
-   const GLuint row_stride =
-      _mesa_format_row_stride(texImage->TexFormat, texImage->Width);
-   GLuint i;
-   GLubyte *src;
-   GLint srcRowStride;
+   const GLuint dimensions =
+      _mesa_get_texture_dimensions(texImage->TexObject->Target);
+   struct compressed_pixelstore store;
+   GLuint i, slice;
+   GLubyte *dest;
+
+   _mesa_compute_compressed_pixelstore(dimensions, texImage,
+                                       texImage->Width, texImage->Height,
+                                       texImage->Depth,
+                                       &ctx->Pack,
+                                       &store);
 
    if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
       /* pack texture image into a PBO */
-      GLubyte *buf = (GLubyte *)
+      dest = (GLubyte *)
          ctx->Driver.MapBufferRange(ctx, 0, ctx->Pack.BufferObj->Size,
 				    GL_MAP_WRITE_BIT, ctx->Pack.BufferObj,
                                     MAP_INTERNAL);
-      if (!buf) {
+      if (!dest) {
          /* out of memory or other unexpected error */
          _mesa_error(ctx, GL_OUT_OF_MEMORY,
                      "glGetCompresssedTexImage(map PBO failed)");
          return;
       }
-      img = ADD_POINTERS(buf, img);
+      dest = ADD_POINTERS(dest, img);
+   } else {
+      dest = img;
    }
 
-   /* map src texture buffer */
-   ctx->Driver.MapTextureImage(ctx, texImage, 0,
-                               0, 0, texImage->Width, texImage->Height,
-                               GL_MAP_READ_BIT, &src, &srcRowStride);
+   dest += store.SkipBytes;
 
-   if (src) {
-      /* no pixelstore or pixel transfer, but respect stride */
+   for (slice = 0; slice < store.CopySlices; slice++) {
+      GLint srcRowStride;
+      GLubyte *src;
 
-      if (row_stride == srcRowStride) {
-         const GLuint size = _mesa_format_image_size(texImage->TexFormat,
-                                                     texImage->Width,
-                                                     texImage->Height,
-                                                     texImage->Depth);
-         memcpy(img, src, size);
-      }
-      else {
-         GLuint bw, bh;
-         _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
-         for (i = 0; i < (texImage->Height + bh - 1) / bh; i++) {
-            memcpy((GLubyte *)img + i * row_stride,
-                   (GLubyte *)src + i * srcRowStride,
-                   row_stride);
+      /* map src texture buffer */
+      ctx->Driver.MapTextureImage(ctx, texImage, 0,
+                                  0, 0, texImage->Width, texImage->Height,
+                                  GL_MAP_READ_BIT, &src, &srcRowStride);
+
+      if (src) {
+
+         for (i = 0; i < store.CopyRowsPerSlice; i++) {
+            memcpy(dest, src, store.CopyBytesPerRow);
+            dest += store.TotalBytesPerRow;
+            src += srcRowStride;
          }
-      }
 
-      ctx->Driver.UnmapTextureImage(ctx, texImage, 0);
-   }
-   else {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetCompresssedTexImage");
+         ctx->Driver.UnmapTextureImage(ctx, texImage, 0);
+
+         /* Advance to next slice */
+         dest += store.TotalBytesPerRow * (store.TotalRowsPerSlice - store.CopyRowsPerSlice);
+
+      } else {
+         _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetCompresssedTexImage");
+      }
    }
 
    if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
@@ -963,7 +970,7 @@ getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
    struct gl_texture_object *texObj;
    struct gl_texture_image *texImage;
    const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
-   GLuint compressedSize;
+   GLuint compressedSize, dimensions;
 
    if (!legal_getteximage_target(ctx, target)) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImage(target=0x%x)",
@@ -1004,6 +1011,14 @@ getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
                                             texImage->Height,
                                             texImage->Depth);
 
+   /* Check for invalid pixel storage modes */
+   dimensions = _mesa_get_texture_dimensions(texImage->TexObject->Target);
+   if (!_mesa_compressed_texture_pixel_storage_error_check(ctx, dimensions,
+                                                           &ctx->Pack,
+                                                           "glGetCompressedTexImageARB")) {
+      return GL_TRUE;
+   }
+
    if (!_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
       /* do bounds checking on writing to client memory */
       if (clientMemSize < (GLsizei) compressedSize) {
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index 845ba8014..cab29c35d 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -2242,6 +2242,36 @@ texture_error_check( struct gl_context *ctx,
 }
 
 
+bool
+_mesa_compressed_texture_pixel_storage_error_check(struct gl_context *ctx,
+                                             GLint dimensions,
+                                             struct gl_pixelstore_attrib *packing,
+                                             const char *caller)
+{
+   if (!_mesa_is_desktop_gl(ctx) || !packing->CompressedBlockSize)
+      return true;
+
+   if (packing->CompressedBlockWidth && packing->SkipPixels % packing->CompressedBlockWidth) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "%s(skip-pixels %% block-width)", caller);
+      return false;
+   }
+
+   if (dimensions > 1 && packing->CompressedBlockHeight && packing->SkipRows % packing->CompressedBlockHeight) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "%s(skip-rows %% block-height)", caller);
+      return false;
+   }
+
+   if (dimensions > 2 && packing->CompressedBlockDepth && packing->SkipImages % packing->CompressedBlockDepth) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "%s(skip-images %% block-depth)", caller);
+      return false;
+   }
+
+   return true;
+}
+
 /**
  * Error checking for glCompressedTexImage[123]D().
  * Note that the width, height and depth values are not fully error checked
@@ -2343,6 +2373,13 @@ compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
       goto error;
    }
 
+   /* Check for invalid pixel storage modes */
+   if (!_mesa_compressed_texture_pixel_storage_error_check(ctx, dimensions,
+                                                           &ctx->Unpack,
+                                                           "glCompressedTexImage")) {
+      return GL_FALSE;
+   }
+
    /* check image size in bytes */
    if (expectedSize != imageSize) {
       /* Per GL_ARB_texture_compression:  GL_INVALID_VALUE is generated [...]
@@ -3844,7 +3881,7 @@ compressed_subtexture_error_check(struct gl_context *ctx, GLint dims,
    }
 
    if (!targetOK) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target)",
+      _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexSubImage%uD(target)",
                   dims);
       return GL_TRUE;
    }
@@ -3857,14 +3894,22 @@ compressed_subtexture_error_check(struct gl_context *ctx, GLint dims,
    }
 
    if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(level=%d)",
+      _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage%uD(level=%d)",
                   dims, level);
       return GL_TRUE;
    }
 
+   /* Check for invalid pixel storage modes */
+   if (!_mesa_compressed_texture_pixel_storage_error_check(ctx, dims,
+                                                           &ctx->Unpack,
+                                                           "glCompressedTexSubImage")) {
+      return GL_FALSE;
+   }
+
+
    expectedSize = compressed_tex_size(width, height, depth, format);
    if (expectedSize != imageSize) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(size=%d)",
+      _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage%uD(size=%d)",
                   dims, imageSize);
       return GL_TRUE;
    }
diff --git a/mesalib/src/mesa/main/teximage.h b/mesalib/src/mesa/main/teximage.h
index 51d94d17e..dd1504b40 100644
--- a/mesalib/src/mesa/main/teximage.h
+++ b/mesalib/src/mesa/main/teximage.h
@@ -326,6 +326,12 @@ _mesa_TexStorage3DMultisample(GLenum target, GLsizei samples,
                               GLsizei height, GLsizei depth,
                               GLboolean fixedsamplelocations);
 
+bool
+_mesa_compressed_texture_pixel_storage_error_check(struct gl_context *ctx,
+                                             GLint dimensions,
+                                             struct gl_pixelstore_attrib *packing,
+                                             const char *caller);
+
 /*@}*/
 
 #ifdef __cplusplus
diff --git a/mesalib/src/mesa/main/texstore.c b/mesalib/src/mesa/main/texstore.c
index 764214669..cb81f3fde 100644
--- a/mesalib/src/mesa/main/texstore.c
+++ b/mesalib/src/mesa/main/texstore.c
@@ -4195,6 +4195,61 @@ _mesa_store_compressed_teximage(struct gl_context *ctx, GLuint dims,
 }
 
 
+void
+_mesa_compute_compressed_pixelstore(GLuint dims, struct gl_texture_image *texImage,
+                              GLsizei width, GLsizei height, GLsizei depth,
+                              const struct gl_pixelstore_attrib *packing,
+                              struct compressed_pixelstore *store)
+{
+   GLuint bw, bh;
+   const mesa_format texFormat = texImage->TexFormat;
+
+   _mesa_get_format_block_size(texFormat, &bw, &bh);
+
+   store->SkipBytes = 0;
+   store->TotalBytesPerRow = store->CopyBytesPerRow =
+         _mesa_format_row_stride(texFormat, width);
+   store->TotalRowsPerSlice = store->CopyRowsPerSlice =
+         (height + bh - 1) / bh;
+   store->CopySlices = depth;
+
+   if (packing->CompressedBlockWidth &&
+       packing->CompressedBlockSize) {
+
+      bw = packing->CompressedBlockWidth;
+
+      if (packing->RowLength) {
+         store->TotalBytesPerRow = packing->CompressedBlockSize *
+            (packing->RowLength + bw - 1) / bw;
+      }
+
+      store->SkipBytes += packing->SkipPixels * packing->CompressedBlockSize / bw;
+   }
+
+   if (dims > 1 && packing->CompressedBlockHeight &&
+       packing->CompressedBlockSize) {
+
+      bh = packing->CompressedBlockHeight;
+
+      store->SkipBytes += packing->SkipRows * store->TotalBytesPerRow / bh;
+      store->CopyRowsPerSlice = (height + bh - 1) / bh;  /* rows in blocks */
+
+      if (packing->ImageHeight) {
+         store->TotalRowsPerSlice = (packing->ImageHeight + bh - 1) / bh;
+      }
+   }
+
+   if (dims > 2 && packing->CompressedBlockDepth &&
+       packing->CompressedBlockSize) {
+
+      int bd = packing->CompressedBlockDepth;
+
+      store->SkipBytes += packing->SkipImages * store->TotalBytesPerRow *
+            store->TotalRowsPerSlice / bd;
+   }
+}
+
+
 /**
  * Fallback for Driver.CompressedTexSubImage()
  */
@@ -4206,20 +4261,19 @@ _mesa_store_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
                                    GLenum format,
                                    GLsizei imageSize, const GLvoid *data)
 {
-   GLint bytesPerRow, dstRowStride, srcRowStride;
-   GLint i, rows;
+   struct compressed_pixelstore store;
+   GLint dstRowStride;
+   GLint i, slice;
    GLubyte *dstMap;
    const GLubyte *src;
-   const mesa_format texFormat = texImage->TexFormat;
-   GLuint bw, bh;
-   GLint slice;
 
    if (dims == 1) {
       _mesa_problem(ctx, "Unexpected 1D compressed texsubimage call");
       return;
    }
 
-   _mesa_get_format_block_size(texFormat, &bw, &bh);
+   _mesa_compute_compressed_pixelstore(dims, texImage, width, height, depth,
+                                 &ctx->Unpack, &store);
 
    /* get pointer to src pixels (may be in a pbo which we'll map here) */
    data = _mesa_validate_pbo_compressed_teximage(ctx, dims, imageSize, data,
@@ -4228,10 +4282,9 @@ _mesa_store_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
    if (!data)
       return;
 
-   srcRowStride = _mesa_format_row_stride(texFormat, width);
-   src = (const GLubyte *) data;
+   src = (const GLubyte *) data + store.SkipBytes;
 
-   for (slice = 0; slice < depth; slice++) {
+   for (slice = 0; slice < store.CopySlices; slice++) {
       /* Map dest texture buffer */
       ctx->Driver.MapTextureImage(ctx, texImage, slice + zoffset,
                                   xoffset, yoffset, width, height,
@@ -4239,17 +4292,18 @@ _mesa_store_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
                                   &dstMap, &dstRowStride);
 
       if (dstMap) {
-         bytesPerRow = srcRowStride;  /* bytes per row of blocks */
-         rows = (height + bh - 1) / bh;  /* rows in blocks */
 
          /* copy rows of blocks */
-         for (i = 0; i < rows; i++) {
-            memcpy(dstMap, src, bytesPerRow);
+         for (i = 0; i < store.CopyRowsPerSlice; i++) {
+            memcpy(dstMap, src, store.CopyBytesPerRow);
             dstMap += dstRowStride;
-            src += srcRowStride;
+            src += store.TotalBytesPerRow;
          }
 
          ctx->Driver.UnmapTextureImage(ctx, texImage, slice + zoffset);
+
+         /* advance to next slice */
+         src += store.TotalBytesPerRow * (store.TotalRowsPerSlice - store.CopyRowsPerSlice);
       }
       else {
          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage%uD",
diff --git a/mesalib/src/mesa/main/texstore.h b/mesalib/src/mesa/main/texstore.h
index 490f9f5e0..c4cfffde6 100644
--- a/mesalib/src/mesa/main/texstore.h
+++ b/mesalib/src/mesa/main/texstore.h
@@ -132,4 +132,21 @@ _mesa_store_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
                                    GLsizei imageSize, const GLvoid *data);
 
 
+struct compressed_pixelstore {
+   int SkipBytes;
+   int CopyBytesPerRow;
+   int CopyRowsPerSlice;
+   int TotalBytesPerRow;
+   int TotalRowsPerSlice;
+   int CopySlices;
+};
+
+
+extern void
+_mesa_compute_compressed_pixelstore(GLuint dims, struct gl_texture_image *texImage,
+                              GLsizei width, GLsizei height, GLsizei depth,
+                              const struct gl_pixelstore_attrib *packing,
+                              struct compressed_pixelstore *store);
+
+
 #endif
diff --git a/mesalib/src/mesa/main/uniform_query.cpp b/mesalib/src/mesa/main/uniform_query.cpp
index 5f1af0873..480bc6f16 100644
--- a/mesalib/src/mesa/main/uniform_query.cpp
+++ b/mesalib/src/mesa/main/uniform_query.cpp
@@ -253,6 +253,21 @@ validate_uniform_parameters(struct gl_context *ctx,
       return false;
    }
 
+   /* If the driver storage pointer in remap table is -1, we ignore silently.
+    *
+    * GL_ARB_explicit_uniform_location spec says:
+    *     "What happens if Uniform* is called with an explicitly defined
+    *     uniform location, but that uniform is deemed inactive by the
+    *     linker?
+    *
+    *     RESOLVED: The call is ignored for inactive uniform variables and
+    *     no error is generated."
+    *
+    */
+   if (shProg->UniformRemapTable[location] ==
+       INACTIVE_UNIFORM_EXPLICIT_LOCATION)
+      return false;
+
    _mesa_uniform_split_location_offset(shProg, location, loc, array_index);
 
    if (shProg->UniformStorage[*loc].array_elements == 0 && count > 1) {
diff --git a/mesalib/src/mesa/main/uniforms.c b/mesalib/src/mesa/main/uniforms.c
index 1daade428..f450173af 100644
--- a/mesalib/src/mesa/main/uniforms.c
+++ b/mesalib/src/mesa/main/uniforms.c
@@ -112,7 +112,7 @@ _mesa_uniform_attach_driver_storage(struct gl_uniform_storage *uni,
 
    uni->driver_storage[uni->num_driver_storage].element_stride = element_stride;
    uni->driver_storage[uni->num_driver_storage].vector_stride = vector_stride;
-   uni->driver_storage[uni->num_driver_storage].format = (uint8_t) format;
+   uni->driver_storage[uni->num_driver_storage].format = format;
    uni->driver_storage[uni->num_driver_storage].data = data;
 
    uni->num_driver_storage++;
diff --git a/mesalib/src/mesa/program/program.c b/mesalib/src/mesa/program/program.c
index b7332fccf..988def1a3 100644
--- a/mesalib/src/mesa/program/program.c
+++ b/mesalib/src/mesa/program/program.c
@@ -552,6 +552,7 @@ _mesa_clone_program(struct gl_context *ctx, const struct gl_program *prog)
          gpc->InputType = gp->InputType;
          gpc->Invocations = gp->Invocations;
          gpc->OutputType = gp->OutputType;
+         gpc->UsesEndPrimitive = gp->UsesEndPrimitive;
       }
       break;
    default:
diff --git a/mesalib/src/mesa/state_tracker/st_atom_sampler.c b/mesalib/src/mesa/state_tracker/st_atom_sampler.c
index 3929251f8..17b536bf5 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_sampler.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_sampler.c
@@ -160,11 +160,8 @@ convert_sampler(struct st_context *st,
 
    sampler->lod_bias = ctx->Texture.Unit[texUnit].LodBias + msamp->LodBias;
 
-   sampler->min_lod = CLAMP(msamp->MinLod,
-                            0.0f,
-                            (GLfloat) texobj->MaxLevel - texobj->BaseLevel);
-   sampler->max_lod = MIN2((GLfloat) texobj->MaxLevel - texobj->BaseLevel,
-                           msamp->MaxLod);
+   sampler->min_lod = MAX2(msamp->MinLod, 0.0f);
+   sampler->max_lod = msamp->MaxLod;
    if (sampler->max_lod < sampler->min_lod) {
       /* The GL spec doesn't seem to specify what to do in this case.
        * Swap the values.
diff --git a/mesalib/src/mesa/state_tracker/st_atom_texture.c b/mesalib/src/mesa/state_tracker/st_atom_texture.c
index e2d26ee24..2e10bc3e2 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_texture.c
@@ -212,6 +212,12 @@ check_sampler_swizzle(const struct st_texture_object *stObj,
 }
 
 
+static unsigned last_level(struct st_texture_object *stObj)
+{
+   return MIN2(stObj->base._MaxLevel, stObj->pt->last_level);
+}
+
+
 static struct pipe_sampler_view *
 st_create_texture_sampler_view_from_stobj(struct pipe_context *pipe,
 					  struct st_texture_object *stObj,
@@ -244,6 +250,8 @@ st_create_texture_sampler_view_from_stobj(struct pipe_context *pipe,
       templ.u.buf.last_element  = f + (n - 1);
    } else {
       templ.u.tex.first_level = stObj->base.BaseLevel;
+      templ.u.tex.last_level = last_level(stObj);
+      assert(templ.u.tex.first_level <= templ.u.tex.last_level);
    }
 
    if (swizzle != SWIZZLE_NOOP) {
@@ -279,7 +287,8 @@ st_get_texture_sampler_view_from_stobj(struct st_context *st,
    if (*sv) {
       if (check_sampler_swizzle(stObj, *sv) ||
 	  (format != (*sv)->format) ||
-	  stObj->base.BaseLevel != (*sv)->u.tex.first_level) {
+          stObj->base.BaseLevel != (*sv)->u.tex.first_level ||
+          last_level(stObj) != (*sv)->u.tex.last_level) {
 	 pipe_sampler_view_reference(sv, NULL);
       }
    }
@@ -434,7 +443,7 @@ update_geometry_textures(struct st_context *st)
       update_textures(st,
                       PIPE_SHADER_GEOMETRY,
                       &ctx->GeometryProgram._Current->Base,
-                      ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
+                      ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits,
                       st->state.sampler_views[PIPE_SHADER_GEOMETRY],
                       &st->state.num_sampler_views[PIPE_SHADER_GEOMETRY]);
    }
diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c
index 12ba82df3..e93804689 100644
--- a/mesalib/src/mesa/state_tracker/st_extensions.c
+++ b/mesalib/src/mesa/state_tracker/st_extensions.c
@@ -543,6 +543,7 @@ void st_init_extensions(struct st_context *st)
    ctx->Extensions.ARB_ES2_compatibility = GL_TRUE;
    ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
    ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
+   ctx->Extensions.ARB_explicit_uniform_location = GL_TRUE;
    ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
    ctx->Extensions.ARB_fragment_program = GL_TRUE;
    ctx->Extensions.ARB_fragment_shader = GL_TRUE;
@@ -630,6 +631,7 @@ void st_init_extensions(struct st_context *st)
       ctx->Extensions.ARB_shading_language_packing = GL_TRUE;
       ctx->Extensions.OES_depth_texture_cube_map = GL_TRUE;
       ctx->Extensions.ARB_shading_language_420pack = GL_TRUE;
+      ctx->Extensions.ARB_texture_query_levels = GL_TRUE;
 
       if (!st->options.disable_shader_bit_encoding) {
          ctx->Extensions.ARB_shader_bit_encoding = 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 739e1089e..cac1e0fe2 100644
--- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -2779,7 +2779,9 @@ glsl_to_tgsi_visitor::visit(ir_call *ir)
 void
 glsl_to_tgsi_visitor::visit(ir_texture *ir)
 {
-   st_src_reg result_src, coord, cube_sc, lod_info, projector, dx, dy, offset[MAX_GLSL_TEXTURE_OFFSET], sample_index, component;
+   st_src_reg result_src, coord, cube_sc, lod_info, projector, dx, dy;
+   st_src_reg offset[MAX_GLSL_TEXTURE_OFFSET], sample_index, component;
+   st_src_reg levels_src;
    st_dst_reg result_dst, coord_dst, cube_sc_dst;
    glsl_to_tgsi_instruction *inst = NULL;
    unsigned opcode = TGSI_OPCODE_NOP;
@@ -2860,6 +2862,11 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
       ir->lod_info.lod->accept(this);
       lod_info = this->result;
       break;
+   case ir_query_levels:
+      opcode = TGSI_OPCODE_TXQ;
+      lod_info = st_src_reg(PROGRAM_IMMEDIATE, 0, GLSL_TYPE_INT);
+      levels_src = get_temp(ir->type);
+      break;
    case ir_txf:
       opcode = TGSI_OPCODE_TXF;
       ir->lod_info.lod->accept(this);
@@ -2896,9 +2903,6 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
    case ir_lod:
       opcode = TGSI_OPCODE_LODQ;
       break;
-   case ir_query_levels:
-      assert(!"Unexpected ir_query_levels opcode");
-      break;
    }
 
    if (ir->projector) {
@@ -2995,9 +2999,16 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
 
    if (opcode == TGSI_OPCODE_TXD)
       inst = emit(ir, opcode, result_dst, coord, dx, dy);
-   else if (opcode == TGSI_OPCODE_TXQ)
-      inst = emit(ir, opcode, result_dst, lod_info);
-   else if (opcode == TGSI_OPCODE_TXF) {
+   else if (opcode == TGSI_OPCODE_TXQ) {
+      if (ir->op == ir_query_levels) {
+         /* the level is stored in W */
+         inst = emit(ir, opcode, st_dst_reg(levels_src), lod_info);
+         result_dst.writemask = WRITEMASK_X;
+         levels_src.swizzle = SWIZZLE_WWWW;
+         emit(ir, TGSI_OPCODE_MOV, result_dst, levels_src);
+      } else
+         inst = emit(ir, opcode, result_dst, lod_info);
+   } else if (opcode == TGSI_OPCODE_TXF) {
       inst = emit(ir, opcode, result_dst, coord);
    } else if (opcode == TGSI_OPCODE_TXL2 || opcode == TGSI_OPCODE_TXB2) {
       inst = emit(ir, opcode, result_dst, coord, lod_info);
diff --git a/mesalib/src/mesa/state_tracker/st_program.c b/mesalib/src/mesa/state_tracker/st_program.c
index 26eb9786d..1df411c3b 100644
--- a/mesalib/src/mesa/state_tracker/st_program.c
+++ b/mesalib/src/mesa/state_tracker/st_program.c
@@ -572,6 +572,11 @@ st_translate_fragment_program(struct st_context *st,
             input_semantic_index[slot] = 0;
             interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
             break;
+         case VARYING_SLOT_LAYER:
+            input_semantic_name[slot] = TGSI_SEMANTIC_LAYER;
+            input_semantic_index[slot] = 0;
+            interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
+            break;
          case VARYING_SLOT_VIEWPORT:
             input_semantic_name[slot] = TGSI_SEMANTIC_VIEWPORT_INDEX;
             input_semantic_index[slot] = 0;
diff --git a/mesalib/src/mesa/state_tracker/st_texture.c b/mesalib/src/mesa/state_tracker/st_texture.c
index 92035e801..c14882142 100644
--- a/mesalib/src/mesa/state_tracker/st_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_texture.c
@@ -394,6 +394,14 @@ st_texture_image_copy(struct pipe_context *pipe,
    src_box.width = width;
    src_box.height = height;
    src_box.depth = 1;
+
+   if (src->target == PIPE_TEXTURE_1D_ARRAY ||
+       src->target == PIPE_TEXTURE_2D_ARRAY ||
+       src->target == PIPE_TEXTURE_CUBE_ARRAY) {
+      face = 0;
+      depth = src->array_size;
+   }
+
    /* Loop over 3D image slices */
    /* could (and probably should) use "true" 3d box here -
       but drivers can't quite handle it yet */
diff --git a/mesalib/src/mesa/swrast/s_aatriangle.c b/mesalib/src/mesa/swrast/s_aatriangle.c
index d670d3154..219282748 100644
--- a/mesalib/src/mesa/swrast/s_aatriangle.c
+++ b/mesalib/src/mesa/swrast/s_aatriangle.c
@@ -112,20 +112,6 @@ solve_plane(GLfloat x, GLfloat y, const GLfloat plane[4])
 
 
 /*
- * Return 1 / solve_plane().
- */
-static inline GLfloat
-solve_plane_recip(GLfloat x, GLfloat y, const GLfloat plane[4])
-{
-   const GLfloat denom = plane[3] + plane[0] * x + plane[1] * y;
-   if (denom == 0.0F)
-      return 0.0F;
-   else
-      return -plane[2] / denom;
-}
-
-
-/*
  * Solve plane and return clamped GLchan value.
  */
 static inline GLchan