Merge remote-tracking branch 'origin/released'

* origin/released:
  fontconfig libXau mesa xserver xkeyboard-config git update 8 Apr 2013

46 files changed, 481 insertions, 171 deletions

diff --git a/mesalib/src/mesa/drivers/common/driverfuncs.c b/mesalib/src/mesa/drivers/common/driverfuncs.c
index 731d46658..a98dfc607 100644
--- a/mesalib/src/mesa/drivers/common/driverfuncs.c
+++ b/mesalib/src/mesa/drivers/common/driverfuncs.c
@@ -28,6 +28,7 @@
 #include "main/accum.h"
 #include "main/arrayobj.h"
 #include "main/context.h"
+#include "main/formatquery.h"
 #include "main/framebuffer.h"
 #include "main/mipmap.h"
 #include "main/queryobj.h"
@@ -90,7 +91,7 @@ _mesa_init_driver_functions(struct dd_function_table *driver)
 
    /* Texture functions */
    driver->ChooseTextureFormat = _mesa_choose_tex_format;
-   driver->QuerySamplesForFormat = NULL;
+   driver->QuerySamplesForFormat = _mesa_query_samples_for_format;
    driver->TexImage = _mesa_store_teximage;
    driver->TexSubImage = _mesa_store_texsubimage;
    driver->GetTexImage = _mesa_meta_GetTexImage;
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c
index 8114550ba..e3ab82bfe 100644
--- a/mesalib/src/mesa/drivers/common/meta.c
+++ b/mesalib/src/mesa/drivers/common/meta.c
@@ -757,7 +757,8 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
        * it's for the pixel path (ClampFragmentColor is GL_TRUE),
        * regardless of the internal implementation of the metaops.
        */
-      if (ctx->Color.ClampFragmentColor != GL_TRUE)
+      if (ctx->Color.ClampFragmentColor != GL_TRUE &&
+          ctx->Extensions.ARB_color_buffer_float)
 	 _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE);
    }
 
@@ -767,7 +768,8 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
       /* Generally in here we never want vertex color clamping --
        * result clamping is only dependent on fragment clamping.
        */
-      _mesa_ClampColor(GL_CLAMP_VERTEX_COLOR, GL_FALSE);
+      if (ctx->Extensions.ARB_color_buffer_float)
+         _mesa_ClampColor(GL_CLAMP_VERTEX_COLOR, GL_FALSE);
    }
 
    if (state & MESA_META_CONDITIONAL_RENDER) {
@@ -1091,11 +1093,13 @@ _mesa_meta_end(struct gl_context *ctx)
       _mesa_DepthRange(save->DepthNear, save->DepthFar);
    }
 
-   if (state & MESA_META_CLAMP_FRAGMENT_COLOR) {
+   if (state & MESA_META_CLAMP_FRAGMENT_COLOR &&
+       ctx->Extensions.ARB_color_buffer_float) {
       _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, save->ClampFragmentColor);
    }
 
-   if (state & MESA_META_CLAMP_VERTEX_COLOR) {
+   if (state & MESA_META_CLAMP_VERTEX_COLOR &&
+       ctx->Extensions.ARB_color_buffer_float) {
       _mesa_ClampColor(GL_CLAMP_VERTEX_COLOR, save->ClampVertexColor);
    }
 
@@ -2044,7 +2048,8 @@ _mesa_meta_Clear(struct gl_context *ctx, GLbitfield buffers)
       /* leave colormask, glDrawBuffer state as-is */
 
       /* Clears never have the color clamped. */
-      _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE);
+      if (ctx->Extensions.ARB_color_buffer_float)
+         _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE);
    }
    else {
       ASSERT(metaSave & MESA_META_COLOR_MASK);
@@ -2295,7 +2300,8 @@ _mesa_meta_glsl_Clear(struct gl_context *ctx, GLbitfield buffers)
       /* leave colormask, glDrawBuffer state as-is */
 
       /* Clears never have the color clamped. */
-      _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE);
+      if (ctx->Extensions.ARB_color_buffer_float)
+         _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE);
    }
    else {
       ASSERT(metaSave & MESA_META_COLOR_MASK);
diff --git a/mesalib/src/mesa/drivers/dri/common/Android.mk b/mesalib/src/mesa/drivers/dri/common/Android.mk
index f428c3855..b3dac29dd 100644
--- a/mesalib/src/mesa/drivers/dri/common/Android.mk
+++ b/mesalib/src/mesa/drivers/dri/common/Android.mk
@@ -77,7 +77,8 @@ $(intermediates)/xmlpool/options.h: PRIVATE_SCRIPT := $(LOCAL_PATH)/xmlpool/gen_
 $(intermediates)/xmlpool/options.h: PRIVATE_LOCALEDIR := $(intermediates)/xmlpool
 $(intermediates)/xmlpool/options.h: PRIVATE_TEMPLATE_HEADER := $(LOCAL_PATH)/xmlpool/t_options.h
 $(intermediates)/xmlpool/options.h: PRIVATE_MO_FILES := $(MESA_DRI_OPTIONS_LANGS:%=$(intermediates)/xmlpool/%/LC_MESSAGES/options.mo)
-$(intermediates)/xmlpool/options.h: $(PRIVATE_SCRIPT) $(PRIVATE_TEMPLATE_HEADER) $(PRIVATE_MO_FILES)
+.SECONDEXPANSION:
+$(intermediates)/xmlpool/options.h: $$(PRIVATE_SCRIPT) $$(PRIVATE_TEMPLATE_HEADER) $$(PRIVATE_MO_FILES)
 	mkdir -p $(dir $@)
 	mkdir -p $(PRIVATE_LOCALEDIR)
 	$(MESA_PYTHON2) $(PRIVATE_SCRIPT) $(PRIVATE_TEMPLATE_HEADER) \
diff --git a/mesalib/src/mesa/drivers/dri/common/drirc b/mesalib/src/mesa/drivers/dri/common/drirc
index a13941f68..556d1b599 100644
--- a/mesalib/src/mesa/drivers/dri/common/drirc
+++ b/mesalib/src/mesa/drivers/dri/common/drirc
@@ -25,5 +25,11 @@
         <application name="Savage 2" executable="savage2.bin">
             <option name="disable_glsl_line_continuations" value="true" />
         </application>
+        <application name="Topogun (32-bit)" executable="topogun32">
+            <option name="always_have_depth_buffer" value="true" />
+        </application>
+        <application name="Topogun (64-bit)" executable="topogun64">
+            <option name="always_have_depth_buffer" value="true" />
+        </application>
     </device>
 </driconf>
diff --git a/mesalib/src/mesa/main/attrib.c b/mesalib/src/mesa/main/attrib.c
index 3b991bcac..a672845bf 100644
--- a/mesalib/src/mesa/main/attrib.c
+++ b/mesalib/src/mesa/main/attrib.c
@@ -986,7 +986,9 @@ _mesa_PopAttrib(void)
                _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP,
                                 color->IndexLogicOpEnabled);
                _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag);
-               _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR_ARB, color->ClampFragmentColor);
+               if (ctx->Extensions.ARB_color_buffer_float)
+                  _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR_ARB,
+                                   color->ClampFragmentColor);
                _mesa_ClampColor(GL_CLAMP_READ_COLOR_ARB, color->ClampReadColor);
 
                /* GL_ARB_framebuffer_sRGB / GL_EXT_framebuffer_sRGB */
@@ -1114,7 +1116,10 @@ _mesa_PopAttrib(void)
                /* materials */
                memcpy(&ctx->Light.Material, &light->Material,
                       sizeof(struct gl_material));
-               _mesa_ClampColor(GL_CLAMP_VERTEX_COLOR_ARB, light->ClampVertexColor);
+               if (ctx->Extensions.ARB_color_buffer_float) {
+                  _mesa_ClampColor(GL_CLAMP_VERTEX_COLOR_ARB,
+                                   light->ClampVertexColor);
+               }
             }
             break;
          case GL_LINE_BIT:
diff --git a/mesalib/src/mesa/main/blend.c b/mesalib/src/mesa/main/blend.c
index 309f1d538..09a1c9ae8 100644
--- a/mesalib/src/mesa/main/blend.c
+++ b/mesalib/src/mesa/main/blend.c
@@ -765,24 +765,96 @@ _mesa_ClampColor(GLenum target, GLenum clamp)
 
    switch (target) {
    case GL_CLAMP_VERTEX_COLOR_ARB:
+      if (ctx->API == API_OPENGL_CORE &&
+          !ctx->Extensions.ARB_color_buffer_float) {
+         goto invalid_enum;
+      }
       FLUSH_VERTICES(ctx, _NEW_LIGHT);
       ctx->Light.ClampVertexColor = clamp;
+      _mesa_update_clamp_vertex_color(ctx);
       break;
    case GL_CLAMP_FRAGMENT_COLOR_ARB:
+      if (ctx->API == API_OPENGL_CORE &&
+          !ctx->Extensions.ARB_color_buffer_float) {
+         goto invalid_enum;
+      }
       FLUSH_VERTICES(ctx, _NEW_FRAG_CLAMP);
       ctx->Color.ClampFragmentColor = clamp;
+      _mesa_update_clamp_fragment_color(ctx);
       break;
    case GL_CLAMP_READ_COLOR_ARB:
       FLUSH_VERTICES(ctx, _NEW_COLOR);
       ctx->Color.ClampReadColor = clamp;
       break;
    default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(target)");
-      return;
+      goto invalid_enum;
    }
+   return;
+
+invalid_enum:
+   _mesa_error(ctx, GL_INVALID_ENUM, "glClampColor(%s)",
+               _mesa_lookup_enum_by_nr(target));
+}
+
+static GLboolean
+get_clamp_color(const struct gl_framebuffer *fb, GLenum clamp)
+{
+   if (clamp == GL_TRUE || clamp == GL_FALSE)
+      return clamp;
+
+   ASSERT(clamp == GL_FIXED_ONLY);
+   if (!fb)
+      return GL_TRUE;
+
+   return fb->_AllColorBuffersFixedPoint;
+}
+
+GLboolean
+_mesa_get_clamp_fragment_color(const struct gl_context *ctx)
+{
+   return get_clamp_color(ctx->DrawBuffer,
+                                ctx->Color.ClampFragmentColor);
+}
+
+GLboolean
+_mesa_get_clamp_vertex_color(const struct gl_context *ctx)
+{
+   return get_clamp_color(ctx->DrawBuffer, ctx->Light.ClampVertexColor);
+}
+
+GLboolean
+_mesa_get_clamp_read_color(const struct gl_context *ctx)
+{
+   return get_clamp_color(ctx->ReadBuffer, ctx->Color.ClampReadColor);
 }
 
+/**
+ * Update the ctx->Color._ClampFragmentColor field
+ */
+void
+_mesa_update_clamp_fragment_color(struct gl_context *ctx)
+{
+   struct gl_framebuffer *fb = ctx->DrawBuffer;
 
+   /* Don't clamp if:
+    * - there is no colorbuffer
+    * - all colorbuffers are unsigned normalized, so clamping has no effect
+    * - there is an integer colorbuffer
+    */
+   if (!fb || !fb->_HasSNormOrFloatColorBuffer || fb->_IntegerColor)
+      ctx->Color._ClampFragmentColor = GL_FALSE;
+   else
+      ctx->Color._ClampFragmentColor = _mesa_get_clamp_fragment_color(ctx);
+}
+
+/**
+ * Update the ctx->Color._ClampVertexColor field
+ */
+void
+_mesa_update_clamp_vertex_color(struct gl_context *ctx)
+{
+   ctx->Light._ClampVertexColor = _mesa_get_clamp_vertex_color(ctx);
+}
 
 
 /**********************************************************************/
@@ -832,10 +904,10 @@ void _mesa_init_color( struct gl_context * ctx )
       ctx->Color.DrawBuffer[0] = GL_FRONT;
    }
 
-   ctx->Color.ClampFragmentColor = GL_FIXED_ONLY_ARB;
-   ctx->Color._ClampFragmentColor = GL_TRUE;
+   ctx->Color.ClampFragmentColor = ctx->API == API_OPENGL_COMPAT ?
+                                   GL_FIXED_ONLY_ARB : GL_FALSE;
+   ctx->Color._ClampFragmentColor = GL_FALSE;
    ctx->Color.ClampReadColor = GL_FIXED_ONLY_ARB;
-   ctx->Color._ClampReadColor = GL_TRUE;
 
    if (ctx->API == API_OPENGLES2) {
       /* GLES 3 behaves as though GL_FRAMEBUFFER_SRGB is always enabled. */
diff --git a/mesalib/src/mesa/main/blend.h b/mesalib/src/mesa/main/blend.h
index a539aa809..621311d55 100644
--- a/mesalib/src/mesa/main/blend.h
+++ b/mesalib/src/mesa/main/blend.h
@@ -99,6 +99,20 @@ _mesa_ColorMaski( GLuint buf, GLboolean red, GLboolean green,
 extern void GLAPIENTRY
 _mesa_ClampColor(GLenum target, GLenum clamp);
 
+extern GLboolean
+_mesa_get_clamp_fragment_color(const struct gl_context *ctx);
+
+extern GLboolean
+_mesa_get_clamp_vertex_color(const struct gl_context *ctx);
+
+extern GLboolean
+_mesa_get_clamp_read_color(const struct gl_context *ctx);
+
+extern void
+_mesa_update_clamp_fragment_color(struct gl_context *ctx);
+
+extern void
+_mesa_update_clamp_vertex_color(struct gl_context *ctx);
 
 extern void  
 _mesa_init_color( struct gl_context * ctx );
diff --git a/mesalib/src/mesa/main/compiler.h b/mesalib/src/mesa/main/compiler.h
index 8b23665e6..8431534c3 100644
--- a/mesalib/src/mesa/main/compiler.h
+++ b/mesalib/src/mesa/main/compiler.h
@@ -256,7 +256,7 @@ static INLINE GLuint CPU_TO_LE32(GLuint x)
  */
 #define STATIC_ASSERT(COND) \
    do { \
-      typedef int static_assertion_failed[(!!(COND))*2-1]; \
+      (void) sizeof(char [1 - 2*!(COND)]); \
    } while (0)
 
 
diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c
index e90a29680..c7f038b88 100644
--- a/mesalib/src/mesa/main/extensions.c
+++ b/mesalib/src/mesa/main/extensions.c
@@ -144,10 +144,12 @@ static const struct extension extension_table[] = {
    { "GL_ARB_texture_mirrored_repeat",             o(dummy_true),                              GLL,            2001 },
    { "GL_ARB_texture_multisample",                 o(ARB_texture_multisample),                 GL,             2009 },
    { "GL_ARB_texture_non_power_of_two",            o(ARB_texture_non_power_of_two),            GL,             2003 },
+   { "GL_ARB_texture_query_lod",                   o(ARB_texture_query_lod),                   GL,             2009 },
    { "GL_ARB_texture_rectangle",                   o(NV_texture_rectangle),                    GL,             2004 },
    { "GL_ARB_texture_rgb10_a2ui",                  o(ARB_texture_rgb10_a2ui),                  GL,             2009 },
    { "GL_ARB_texture_rg",                          o(ARB_texture_rg),                          GL,             2008 },
    { "GL_ARB_texture_storage",                     o(ARB_texture_storage),                     GL,             2011 },
+   { "GL_ARB_texture_storage_multisample",         o(ARB_texture_storage_multisample),         GL,             2012 },
    { "GL_ARB_texture_swizzle",                     o(EXT_texture_swizzle),                     GL,             2008 },
    { "GL_ARB_timer_query",                         o(ARB_timer_query),                         GL,             2010 },
    { "GL_ARB_transform_feedback2",                 o(ARB_transform_feedback2),                 GL,             2010 },
diff --git a/mesalib/src/mesa/main/fbobject.c b/mesalib/src/mesa/main/fbobject.c
index 3fdf62667..fc2b2620b 100644
--- a/mesalib/src/mesa/main/fbobject.c
+++ b/mesalib/src/mesa/main/fbobject.c
@@ -784,6 +784,8 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    numImages = 0;
    fb->Width = 0;
    fb->Height = 0;
+   fb->_AllColorBuffersFixedPoint = GL_TRUE;
+   fb->_HasSNormOrFloatColorBuffer = GL_FALSE;
 
    /* Start at -2 to more easily loop over all attachment points.
     *  -2: depth buffer
@@ -900,6 +902,19 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
       /* check if integer color */
       fb->_IntegerColor = _mesa_is_format_integer_color(attFormat);
 
+      /* Update _AllColorBuffersFixedPoint and _HasSNormOrFloatColorBuffer. */
+      if (i >= 0) {
+         GLenum type = _mesa_get_format_datatype(attFormat);
+
+         fb->_AllColorBuffersFixedPoint =
+            fb->_AllColorBuffersFixedPoint &&
+            (type == GL_UNSIGNED_NORMALIZED || type == GL_SIGNED_NORMALIZED);
+
+         fb->_HasSNormOrFloatColorBuffer =
+            fb->_HasSNormOrFloatColorBuffer ||
+            type == GL_SIGNED_NORMALIZED || type == GL_FLOAT;
+      }
+
       /* Error-check width, height, format */
       if (numImages == 1) {
          /* save format */
@@ -1537,15 +1552,16 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
       /* NumSamples == 0 indicates non-multisampling */
       samples = 0;
    }
-
-   /* check the sample count;
-    * note: driver may choose to use more samples than what's requested
-    */
-   sample_count_error = _mesa_check_sample_count(ctx, target,
-         internalFormat, samples);
-   if (sample_count_error != GL_NO_ERROR) {
-      _mesa_error(ctx, sample_count_error, "%s(samples)", func);
-      return;
+   else {
+      /* check the sample count;
+       * note: driver may choose to use more samples than what's requested
+       */
+      sample_count_error = _mesa_check_sample_count(ctx, target,
+            internalFormat, samples);
+      if (sample_count_error != GL_NO_ERROR) {
+         _mesa_error(ctx, sample_count_error, "%s(samples)", func);
+         return;
+      }
    }
 
    rb = ctx->CurrentRenderbuffer;
diff --git a/mesalib/src/mesa/main/formatquery.c b/mesalib/src/mesa/main/formatquery.c
index 78c5fbe5e..e45dc8680 100644
--- a/mesalib/src/mesa/main/formatquery.c
+++ b/mesalib/src/mesa/main/formatquery.c
@@ -30,6 +30,21 @@
 #include "fbobject.h"
 #include "formatquery.h"
 
+/* default implementation of QuerySamplesForFormat driverfunc, for
+ * non-multisample-capable drivers. */
+size_t
+_mesa_query_samples_for_format(struct gl_context *ctx, GLenum target,
+                               GLenum internalFormat, int samples[16])
+{
+   (void) target;
+   (void) internalFormat;
+   (void) ctx;
+
+   samples[0] = 1;
+   return 1;
+}
+
+
 void GLAPIENTRY
 _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
                           GLsizei bufSize, GLint *params)
diff --git a/mesalib/src/mesa/main/formatquery.h b/mesalib/src/mesa/main/formatquery.h
index 585c3eb64..603400059 100644
--- a/mesalib/src/mesa/main/formatquery.h
+++ b/mesalib/src/mesa/main/formatquery.h
@@ -28,6 +28,10 @@
 #include "compiler.h"
 #include "glheader.h"
 
+size_t
+_mesa_query_samples_for_format(struct gl_context *ctx, GLenum target,
+                               GLenum internalFormat, int samples[16]);
+
 extern void GLAPIENTRY
 _mesa_GetInternalformativ(GLenum target, GLenum internalformat,
                           GLenum pname, GLsizei bufSize, GLint *params);
diff --git a/mesalib/src/mesa/main/framebuffer.c b/mesalib/src/mesa/main/framebuffer.c
index 619aaa337..6c6977431 100644
--- a/mesalib/src/mesa/main/framebuffer.c
+++ b/mesalib/src/mesa/main/framebuffer.c
@@ -32,6 +32,7 @@
 
 #include "glheader.h"
 #include "imports.h"
+#include "blend.h"
 #include "buffers.h"
 #include "context.h"
 #include "enums.h"
@@ -154,6 +155,8 @@ _mesa_initialize_window_framebuffer(struct gl_framebuffer *fb,
 
    fb->Delete = _mesa_destroy_framebuffer;
    fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
+   fb->_AllColorBuffersFixedPoint = !visual->floatMode;
+   fb->_HasSNormOrFloatColorBuffer = visual->floatMode;
 
    compute_depth_max(fb);
 }
@@ -740,6 +743,9 @@ _mesa_update_framebuffer(struct gl_context *ctx)
    update_framebuffer(ctx, drawFb);
    if (readFb != drawFb)
       update_framebuffer(ctx, readFb);
+
+   _mesa_update_clamp_vertex_color(ctx);
+   _mesa_update_clamp_fragment_color(ctx);
 }
 
 
diff --git a/mesalib/src/mesa/main/get.c b/mesalib/src/mesa/main/get.c
index 582ef3198..2ba868c0d 100644
--- a/mesalib/src/mesa/main/get.c
+++ b/mesalib/src/mesa/main/get.c
@@ -24,6 +24,7 @@
 
 #include "glheader.h"
 #include "context.h"
+#include "blend.h"
 #include "enable.h"
 #include "enums.h"
 #include "extensions.h"
@@ -358,6 +359,13 @@ EXTRA_EXT(ARB_texture_buffer_range);
 EXTRA_EXT(ARB_texture_multisample);
 
 static const int
+extra_ARB_color_buffer_float_or_glcore[] = {
+   EXT(ARB_color_buffer_float),
+   EXTRA_API_GL_CORE,
+   EXTRA_END
+};
+
+static const int
 extra_NV_primitive_restart[] = {
    EXT(NV_primitive_restart),
    EXTRA_END
@@ -767,13 +775,13 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
       break;
 
    case GL_FOG_COLOR:
-      if(ctx->Color._ClampFragmentColor)
+      if (_mesa_get_clamp_fragment_color(ctx))
          COPY_4FV(v->value_float_4, ctx->Fog.Color);
       else
          COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
       break;
    case GL_COLOR_CLEAR_VALUE:
-      if(ctx->Color._ClampFragmentColor) {
+      if (_mesa_get_clamp_fragment_color(ctx)) {
          v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
          v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
          v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
@@ -782,13 +790,13 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
          COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
       break;
    case GL_BLEND_COLOR_EXT:
-      if(ctx->Color._ClampFragmentColor)
+      if (_mesa_get_clamp_fragment_color(ctx))
          COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
       else
          COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
       break;
    case GL_ALPHA_TEST_REF:
-      if(ctx->Color._ClampFragmentColor)
+      if (_mesa_get_clamp_fragment_color(ctx))
          v->value_float = ctx->Color.AlphaRef;
       else
          v->value_float = ctx->Color.AlphaRefUnclamped;
@@ -868,7 +876,7 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
  * \param func name of calling glGet*v() function for error reporting
  * \param d the struct value_desc that has the extra constraints
  *
- * \return GL_FALSE if one of the constraints was not satisfied,
+ * \return GL_FALSE if all of the constraints were not satisfied,
  *     otherwise GL_TRUE.
  */
 static GLboolean
diff --git a/mesalib/src/mesa/main/get_hash_params.py b/mesalib/src/mesa/main/get_hash_params.py
index 7d4f7e2a4..4ef23247b 100644
--- a/mesalib/src/mesa/main/get_hash_params.py
+++ b/mesalib/src/mesa/main/get_hash_params.py
@@ -96,7 +96,7 @@ descriptor=[
 # GL_ARB_color_buffer_float
   [ "CLAMP_VERTEX_COLOR", "CONTEXT_ENUM(Light.ClampVertexColor), extra_ARB_color_buffer_float" ],
   [ "CLAMP_FRAGMENT_COLOR", "CONTEXT_ENUM(Color.ClampFragmentColor), extra_ARB_color_buffer_float" ],
-  [ "CLAMP_READ_COLOR", "CONTEXT_ENUM(Color.ClampReadColor), extra_ARB_color_buffer_float" ],
+  [ "CLAMP_READ_COLOR", "CONTEXT_ENUM(Color.ClampReadColor), extra_ARB_color_buffer_float_or_glcore" ],
 
 # GL_ARB_copy_buffer
   [ "COPY_READ_BUFFER", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
diff --git a/mesalib/src/mesa/main/imports.h b/mesalib/src/mesa/main/imports.h
index 4b783818b..c4110ef10 100644
--- a/mesalib/src/mesa/main/imports.h
+++ b/mesalib/src/mesa/main/imports.h
@@ -500,17 +500,11 @@ _mesa_realloc( void *oldBuffer, size_t oldSize, size_t newSize );
 #ifndef FFS_DEFINED
 #define FFS_DEFINED 1
 #ifdef __GNUC__
-
-#if defined(__MINGW32__) || defined(__CYGWIN__) || defined(ANDROID) || defined(__APPLE__)
 #define ffs __builtin_ffs
 #define ffsll __builtin_ffsll
-#endif
-
 #else
-
 extern int ffs(int i);
 extern int ffsll(long long int i);
-
 #endif /*__ GNUC__ */
 #endif /* FFS_DEFINED */
 
diff --git a/mesalib/src/mesa/main/light.c b/mesalib/src/mesa/main/light.c
index 3c43ec766..c694bebe6 100644
--- a/mesalib/src/mesa/main/light.c
+++ b/mesalib/src/mesa/main/light.c
@@ -1202,7 +1202,8 @@ _mesa_init_lighting( struct gl_context *ctx )
                                                NULL );
 
    ctx->Light.ColorMaterialEnabled = GL_FALSE;
-   ctx->Light.ClampVertexColor = GL_TRUE;
+   ctx->Light.ClampVertexColor = ctx->API == API_OPENGL_COMPAT;
+   ctx->Light._ClampVertexColor = ctx->API == API_OPENGL_COMPAT;
 
    /* Miscellaneous */
    ctx->Light._NeedEyeCoords = GL_FALSE;
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index a0e7e281d..008f68bda 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -146,9 +146,6 @@ typedef enum
  * VERT_ATTRIB_TEX
  *   include the classic texture coordinate attributes.
  *   Is a subset of VERT_ATTRIB_FF.
- * VERT_ATTRIB_GENERIC_NV
- *   include the NV shader attributes.
- *   Is a subset of VERT_ATTRIB_FF.
  * VERT_ATTRIB_GENERIC
  *   include the OpenGL 2.0+ GLSL generic shader attributes.
  *   These alias the generic GL_ARB_vertex_shader attributes.
@@ -159,9 +156,6 @@ typedef enum
 #define VERT_ATTRIB_TEX(i)          (VERT_ATTRIB_TEX0 + (i))
 #define VERT_ATTRIB_TEX_MAX         MAX_TEXTURE_COORD_UNITS
 
-#define VERT_ATTRIB_GENERIC_NV(i)   (VERT_ATTRIB_POS + (i))
-#define VERT_ATTRIB_GENERIC_NV_MAX  MAX_VERTEX_GENERIC_ATTRIBS
-
 #define VERT_ATTRIB_GENERIC(i)      (VERT_ATTRIB_GENERIC0 + (i))
 #define VERT_ATTRIB_GENERIC_MAX     MAX_VERTEX_GENERIC_ATTRIBS
 
@@ -198,10 +192,6 @@ typedef enum
 #define VERT_BIT_TEX_ALL         \
    BITFIELD64_RANGE(VERT_ATTRIB_TEX(0), VERT_ATTRIB_TEX_MAX)
 
-#define VERT_BIT_GENERIC_NV(i)   VERT_BIT(VERT_ATTRIB_GENERIC_NV(i))
-#define VERT_BIT_GENERIC_NV_ALL  \
-   BITFIELD64_RANGE(VERT_ATTRIB_GENERIC_NV(0), VERT_ATTRIB_GENERIC_NV_MAX)
-
 #define VERT_BIT_GENERIC(i)      VERT_BIT(VERT_ATTRIB_GENERIC(i))
 #define VERT_BIT_GENERIC_ALL     \
    BITFIELD64_RANGE(VERT_ATTRIB_GENERIC(0), VERT_ATTRIB_GENERIC_MAX)
@@ -683,7 +673,6 @@ struct gl_colorbuffer_attrib
    GLenum ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
    GLboolean _ClampFragmentColor; /** < with GL_FIXED_ONLY_ARB resolved */
    GLenum ClampReadColor;     /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
-   GLboolean _ClampReadColor;     /** < with GL_FIXED_ONLY_ARB resolved */
 
    GLboolean sRGBEnabled;	/**< Framebuffer sRGB blending/updating requested */
 };
@@ -1025,6 +1014,7 @@ struct gl_stencil_attrib
    GLboolean TestTwoSide;	/**< GL_EXT_stencil_two_side */
    GLubyte ActiveFace;		/**< GL_EXT_stencil_two_side (0 or 2) */
    GLboolean _Enabled;          /**< Enabled and stencil buffer present */
+   GLboolean _WriteEnabled;     /**< _Enabled and non-zero writemasks */
    GLboolean _TestTwoSide;
    GLubyte _BackFace;           /**< Current back stencil state (1 or 2) */
    GLenum Function[3];		/**< Stencil function */
@@ -2670,6 +2660,10 @@ struct gl_framebuffer
    /** Integer color values */
    GLboolean _IntegerColor;
 
+   /* ARB_color_buffer_float */
+   GLboolean _AllColorBuffersFixedPoint; /* no integer, no float */
+   GLboolean _HasSNormOrFloatColorBuffer;
+
    /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
    struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT];
 
@@ -3002,9 +2996,11 @@ struct gl_extensions
    GLboolean ARB_texture_float;
    GLboolean ARB_texture_multisample;
    GLboolean ARB_texture_non_power_of_two;
+   GLboolean ARB_texture_query_lod;
    GLboolean ARB_texture_rg;
    GLboolean ARB_texture_rgb10_a2ui;
    GLboolean ARB_texture_storage;
+   GLboolean ARB_texture_storage_multisample;
    GLboolean ARB_timer_query;
    GLboolean ARB_transform_feedback2;
    GLboolean ARB_transform_feedback3;
diff --git a/mesalib/src/mesa/main/readpix.c b/mesalib/src/mesa/main/readpix.c
index d3d09dea3..0dee38063 100644
--- a/mesalib/src/mesa/main/readpix.c
+++ b/mesalib/src/mesa/main/readpix.c
@@ -24,6 +24,7 @@
 
 #include "glheader.h"
 #include "imports.h"
+#include "blend.h"
 #include "bufferobj.h"
 #include "context.h"
 #include "enums.h"
@@ -80,7 +81,7 @@ get_readpixels_transfer_ops(const struct gl_context *ctx, gl_format texFormat,
    if (uses_blit) {
       /* For blit-based ReadPixels packing, the clamping is done automatically
        * unless the type is float. */
-      if (ctx->Color._ClampReadColor == GL_TRUE &&
+      if (_mesa_get_clamp_read_color(ctx) &&
           (type == GL_FLOAT || type == GL_HALF_FLOAT)) {
          transferOps |= IMAGE_CLAMP_BIT;
       }
@@ -88,7 +89,7 @@ get_readpixels_transfer_ops(const struct gl_context *ctx, gl_format texFormat,
    else {
       /* For CPU-based ReadPixels packing, the clamping must always be done
        * for non-float types, */
-      if (ctx->Color._ClampReadColor == GL_TRUE ||
+      if (_mesa_get_clamp_read_color(ctx) ||
           (type != GL_FLOAT && type != GL_HALF_FLOAT)) {
          transferOps |= IMAGE_CLAMP_BIT;
       }
diff --git a/mesalib/src/mesa/main/shaderapi.c b/mesalib/src/mesa/main/shaderapi.c
index be6946798..2c307e79c 100644
--- a/mesalib/src/mesa/main/shaderapi.c
+++ b/mesalib/src/mesa/main/shaderapi.c
@@ -518,9 +518,11 @@ get_programiv(struct gl_context *ctx, GLuint program, GLenum pname, GLint *param
       GLint max_len = 0;
 
       for (i = 0; i < shProg->NumUserUniformStorage; i++) {
-	 /* Add one for the terminating NUL character.
+	 /* Add one for the terminating NUL character for a non-array, and
+	  * 4 for the "[0]" and the NUL for an array.
 	  */
-	 const GLint len = strlen(shProg->UniformStorage[i].name) + 1;
+	 const GLint len = strlen(shProg->UniformStorage[i].name) + 1 +
+	     ((shProg->UniformStorage[i].array_elements != 0) ? 3 : 0);
 
 	 if (len > max_len)
 	    max_len = len;
diff --git a/mesalib/src/mesa/main/state.c b/mesalib/src/mesa/main/state.c
index fb8b71cfe..251c1aea9 100644
--- a/mesalib/src/mesa/main/state.c
+++ b/mesalib/src/mesa/main/state.c
@@ -51,6 +51,7 @@
 #include "texobj.h"
 #include "texstate.h"
 #include "varray.h"
+#include "blend.h"
 
 
 static void
@@ -308,47 +309,6 @@ update_multisample(struct gl_context *ctx)
 
 
 /**
- * Update the ctx->Color._ClampFragmentColor field
- */
-static void
-update_clamp_fragment_color(struct gl_context *ctx)
-{
-   if (ctx->Color.ClampFragmentColor == GL_FIXED_ONLY_ARB)
-      ctx->Color._ClampFragmentColor =
-         !ctx->DrawBuffer || !ctx->DrawBuffer->Visual.floatMode;
-   else
-      ctx->Color._ClampFragmentColor = ctx->Color.ClampFragmentColor;
-}
-
-
-/**
- * Update the ctx->Color._ClampVertexColor field
- */
-static void
-update_clamp_vertex_color(struct gl_context *ctx)
-{
-   if (ctx->Light.ClampVertexColor == GL_FIXED_ONLY_ARB)
-      ctx->Light._ClampVertexColor =
-         !ctx->DrawBuffer || !ctx->DrawBuffer->Visual.floatMode;
-   else
-      ctx->Light._ClampVertexColor = ctx->Light.ClampVertexColor;
-}
-
-
-/**
- * Update the ctx->Color._ClampReadColor field
- */
-static void
-update_clamp_read_color(struct gl_context *ctx)
-{
-   if (ctx->Color.ClampReadColor == GL_FIXED_ONLY_ARB)
-      ctx->Color._ClampReadColor =
-         !ctx->ReadBuffer || !ctx->ReadBuffer->Visual.floatMode;
-   else
-      ctx->Color._ClampReadColor = ctx->Color.ClampReadColor;
-}
-
-/**
  * Update the ctx->VertexProgram._TwoSideEnabled flag.
  */
 static void
@@ -507,9 +467,6 @@ _mesa_update_state_locked( struct gl_context *ctx )
    if (new_state & (_NEW_LIGHT | _NEW_PROGRAM))
       update_twoside( ctx );
 
-   if (new_state & (_NEW_LIGHT | _NEW_BUFFERS))
-      update_clamp_vertex_color(ctx);
-
    if (new_state & (_NEW_STENCIL | _NEW_BUFFERS))
       _mesa_update_stencil( ctx );
 
@@ -525,12 +482,6 @@ _mesa_update_state_locked( struct gl_context *ctx )
    if (new_state & (_NEW_MULTISAMPLE | _NEW_BUFFERS))
       update_multisample( ctx );
 
-   if (new_state & (_NEW_COLOR | _NEW_BUFFERS))
-      update_clamp_read_color(ctx);
-
-   if(new_state & (_NEW_FRAG_CLAMP | _NEW_BUFFERS))
-      update_clamp_fragment_color(ctx);
-
 #if 0
    if (new_state & (_NEW_POINT | _NEW_LINE | _NEW_POLYGON | _NEW_LIGHT
                     | _NEW_STENCIL | _MESA_NEW_SEPARATE_SPECULAR))
diff --git a/mesalib/src/mesa/main/stencil.c b/mesalib/src/mesa/main/stencil.c
index c161808e5..330841731 100644
--- a/mesalib/src/mesa/main/stencil.c
+++ b/mesalib/src/mesa/main/stencil.c
@@ -551,6 +551,11 @@ _mesa_update_stencil(struct gl_context *ctx)
 	ctx->Stencil.Ref[0] != ctx->Stencil.Ref[face] ||
 	ctx->Stencil.ValueMask[0] != ctx->Stencil.ValueMask[face] ||
 	ctx->Stencil.WriteMask[0] != ctx->Stencil.WriteMask[face]);
+
+   ctx->Stencil._WriteEnabled =
+      ctx->Stencil._Enabled &&
+      (ctx->Stencil.WriteMask[0] != 0 ||
+       (ctx->Stencil._TestTwoSide && ctx->Stencil.WriteMask[face] != 0));
 }
 
 
diff --git a/mesalib/src/mesa/main/texenv.c b/mesalib/src/mesa/main/texenv.c
index 0fe5fbd7a..2979e6706 100644
--- a/mesalib/src/mesa/main/texenv.c
+++ b/mesalib/src/mesa/main/texenv.c
@@ -32,6 +32,7 @@
 
 #include "main/glheader.h"
 #include "main/context.h"
+#include "main/blend.h"
 #include "main/enums.h"
 #include "main/macros.h"
 #include "main/mtypes.h"
@@ -680,7 +681,7 @@ _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params )
       if (pname == GL_TEXTURE_ENV_COLOR) {
          if(ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
             _mesa_update_state(ctx);
-         if(ctx->Color._ClampFragmentColor)
+         if (_mesa_get_clamp_fragment_color(ctx))
             COPY_4FV( params, texUnit->EnvColor );
          else
             COPY_4FV( params, texUnit->EnvColorUnclamped );
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index bc755ae79..784b389a7 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -47,6 +47,7 @@
 #include "teximage.h"
 #include "texobj.h"
 #include "texstate.h"
+#include "texstorage.h"
 #include "mtypes.h"
 #include "glformats.h"
 
@@ -4194,7 +4195,8 @@ check_multisample_target(GLuint dims, GLenum target)
 static void
 teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
                     GLint internalformat, GLsizei width, GLsizei height,
-                    GLsizei depth, GLboolean fixedsamplelocations)
+                    GLsizei depth, GLboolean fixedsamplelocations,
+                    GLboolean immutable, const char *func)
 {
    struct gl_texture_object *texObj;
    struct gl_texture_image *texImage;
@@ -4206,12 +4208,12 @@ teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
 
    if (!(ctx->Extensions.ARB_texture_multisample
       && _mesa_is_desktop_gl(ctx))) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glTexImage%uDMultisample", dims);
+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(unsupported)", func);
       return;
    }
 
    if (!check_multisample_target(dims, target)) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uDMultisample(target)", dims);
+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
       return;
    }
 
@@ -4219,26 +4221,40 @@ teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
     * refer GL3.1 spec 4.4.4
     */
 
+   if (immutable && !_mesa_is_legal_tex_storage_format(ctx, internalformat)) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+            "%s(internalformat=%s not legal for immutable-format)",
+            func, _mesa_lookup_enum_by_nr(internalformat));
+      return;
+   }
+
    if (!is_renderable_texture_format(ctx, internalformat)) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
-            "glTexImage%uDMultisample(internalformat=%s)",
-            dims,
-            _mesa_lookup_enum_by_nr(internalformat));
+            "%s(internalformat=%s)",
+            func, _mesa_lookup_enum_by_nr(internalformat));
       return;
    }
 
    sample_count_error = _mesa_check_sample_count(ctx, target,
          internalformat, samples);
    if (sample_count_error != GL_NO_ERROR) {
-      _mesa_error(ctx, sample_count_error, "glTexImage%uDMultisample(samples)", dims);
+      _mesa_error(ctx, sample_count_error, "%s(samples)", func);
       return;
    }
 
    texObj = _mesa_get_current_tex_object(ctx, target);
+
+   if (immutable && (!texObj || (texObj->Name == 0))) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+            "%s(texture object 0)",
+            func);
+      return;
+   }
+
    texImage = _mesa_get_tex_image(ctx, texObj, 0, 0);
 
    if (texImage == NULL) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uDMultisample()", dims);
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s()", func);
       return;
    }
 
@@ -4268,13 +4284,19 @@ teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
    else {
       if (!dimensionsOK) {
          _mesa_error(ctx, GL_INVALID_VALUE,
-               "glTexImage%uDMultisample(invalid width or height)", dims);
+               "%s(invalid width or height)", func);
          return;
       }
 
       if (!sizeOK) {
          _mesa_error(ctx, GL_OUT_OF_MEMORY,
-               "glTexImage%uDMultisample(texture too large)", dims);
+               "%s(texture too large)", func);
+         return;
+      }
+
+      /* Check if texObj->Immutable is set */
+      if (texObj->Immutable) {
+         _mesa_error(ctx, GL_INVALID_OPERATION, "%s(immutable)", func);
          return;
       }
 
@@ -4299,6 +4321,7 @@ teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
          }
       }
 
+      texObj->Immutable = immutable;
       _mesa_update_fbo_texture(ctx, texObj, 0, 0);
    }
 }
@@ -4309,7 +4332,7 @@ _mesa_TexImage2DMultisample(GLenum target, GLsizei samples,
                             GLsizei height, GLboolean fixedsamplelocations)
 {
    teximagemultisample(2, target, samples, internalformat,
-         width, height, 1, fixedsamplelocations);
+         width, height, 1, fixedsamplelocations, GL_FALSE, "glTexImage2DMultisample");
 }
 
 void GLAPIENTRY
@@ -4319,5 +4342,25 @@ _mesa_TexImage3DMultisample(GLenum target, GLsizei samples,
                             GLboolean fixedsamplelocations)
 {
    teximagemultisample(3, target, samples, internalformat,
-         width, height, depth, fixedsamplelocations);
+         width, height, depth, fixedsamplelocations, GL_FALSE, "glTexImage3DMultisample");
+}
+
+
+void GLAPIENTRY
+_mesa_TexStorage2DMultisample(GLenum target, GLsizei samples,
+                              GLenum internalformat, GLsizei width,
+                              GLsizei height, GLboolean fixedsamplelocations)
+{
+   teximagemultisample(2, target, samples, internalformat,
+         width, height, 1, fixedsamplelocations, GL_TRUE, "glTexStorage2DMultisample");
+}
+
+void GLAPIENTRY
+_mesa_TexStorage3DMultisample(GLenum target, GLsizei samples,
+                              GLenum internalformat, GLsizei width,
+                              GLsizei height, GLsizei depth,
+                              GLboolean fixedsamplelocations)
+{
+   teximagemultisample(3, target, samples, internalformat,
+         width, height, depth, fixedsamplelocations, GL_TRUE, "glTexStorage3DMultisample");
 }
diff --git a/mesalib/src/mesa/main/teximage.h b/mesalib/src/mesa/main/teximage.h
index 744c47a8a..bb295c7a7 100644
--- a/mesalib/src/mesa/main/teximage.h
+++ b/mesalib/src/mesa/main/teximage.h
@@ -305,6 +305,17 @@ _mesa_TexImage3DMultisample(GLenum target, GLsizei samples,
                             GLsizei height, GLsizei depth,
                             GLboolean fixedsamplelocations);
 
+extern void GLAPIENTRY
+_mesa_TexStorage2DMultisample(GLenum target, GLsizei samples,
+                              GLenum internalformat, GLsizei width,
+                              GLsizei height, GLboolean fixedsamplelocations);
+
+extern void GLAPIENTRY
+_mesa_TexStorage3DMultisample(GLenum target, GLsizei samples,
+                              GLenum internalformat, GLsizei width,
+                              GLsizei height, GLsizei depth,
+                              GLboolean fixedsamplelocations);
+
 /*@}*/
 
 #ifdef __cplusplus
diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c
index bd2f75170..f60eb204e 100644
--- a/mesalib/src/mesa/main/texparam.c
+++ b/mesalib/src/mesa/main/texparam.c
@@ -31,6 +31,7 @@
 
 #include <stdbool.h>
 #include "main/glheader.h"
+#include "main/blend.h"
 #include "main/colormac.h"
 #include "main/context.h"
 #include "main/enums.h"
@@ -175,6 +176,16 @@ get_texobj(struct gl_context *ctx, GLenum target, GLboolean get)
          return texUnit->CurrentTex[TEXTURE_CUBE_ARRAY_INDEX];
       }
       break;
+   case GL_TEXTURE_2D_MULTISAMPLE:
+      if (ctx->Extensions.ARB_texture_storage_multisample) {
+         return texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_INDEX];
+      }
+      break;
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      if (ctx->Extensions.ARB_texture_storage_multisample) {
+         return texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX];
+      }
+      break;
    default:
       ;
    }
@@ -250,6 +261,20 @@ incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
 }
 
 
+static GLboolean
+target_allows_setting_sampler_parameters(GLenum target)
+{
+   switch (target) {
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      return GL_FALSE;
+
+   default:
+      return GL_TRUE;
+   }
+}
+
+
 /**
  * Set an integer-valued texture parameter
  * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
@@ -261,6 +286,9 @@ set_tex_parameteri(struct gl_context *ctx,
 {
    switch (pname) {
    case GL_TEXTURE_MIN_FILTER:
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       if (texObj->Sampler.MinFilter == params[0])
          return GL_FALSE;
       switch (params[0]) {
@@ -286,6 +314,9 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_MAG_FILTER:
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       if (texObj->Sampler.MagFilter == params[0])
          return GL_FALSE;
       switch (params[0]) {
@@ -300,6 +331,9 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_S:
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       if (texObj->Sampler.WrapS == params[0])
          return GL_FALSE;
       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
@@ -310,6 +344,9 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_T:
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       if (texObj->Sampler.WrapT == params[0])
          return GL_FALSE;
       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
@@ -320,6 +357,9 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_R:
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       if (texObj->Sampler.WrapR == params[0])
          return GL_FALSE;
       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
@@ -335,6 +375,11 @@ set_tex_parameteri(struct gl_context *ctx,
 
       if (texObj->BaseLevel == params[0])
          return GL_FALSE;
+
+      if ((texObj->Target == GL_TEXTURE_2D_MULTISAMPLE ||
+           texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) && params[0] != 0)
+         goto invalid_operation;
+
       if (params[0] < 0 ||
           (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) {
          _mesa_error(ctx, GL_INVALID_VALUE,
@@ -348,6 +393,7 @@ set_tex_parameteri(struct gl_context *ctx,
    case GL_TEXTURE_MAX_LEVEL:
       if (texObj->MaxLevel == params[0])
          return GL_FALSE;
+
       if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) {
          _mesa_error(ctx, GL_INVALID_VALUE,
                      "glTexParameter(param=%d)", params[0]);
@@ -373,6 +419,10 @@ set_tex_parameteri(struct gl_context *ctx,
    case GL_TEXTURE_COMPARE_MODE_ARB:
       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
           || _mesa_is_gles3(ctx)) {
+
+         if (!target_allows_setting_sampler_parameters(texObj->Target))
+            goto invalid_operation;
+
          if (texObj->Sampler.CompareMode == params[0])
             return GL_FALSE;
          if (params[0] == GL_NONE ||
@@ -388,6 +438,10 @@ set_tex_parameteri(struct gl_context *ctx,
    case GL_TEXTURE_COMPARE_FUNC_ARB:
       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
           || _mesa_is_gles3(ctx)) {
+
+         if (!target_allows_setting_sampler_parameters(texObj->Target))
+            goto invalid_operation;
+
          if (texObj->Sampler.CompareFunc == params[0])
             return GL_FALSE;
          switch (params[0]) {
@@ -489,7 +543,11 @@ set_tex_parameteri(struct gl_context *ctx,
    case GL_TEXTURE_SRGB_DECODE_EXT:
       if (_mesa_is_desktop_gl(ctx)
           && ctx->Extensions.EXT_texture_sRGB_decode) {
-	 GLenum decode = params[0];
+         GLenum decode = params[0];
+
+         if (!target_allows_setting_sampler_parameters(texObj->Target))
+            goto invalid_operation;
+
 	 if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) {
 	    if (texObj->Sampler.sRGBDecode != decode) {
 	       flush(ctx);
@@ -504,6 +562,10 @@ set_tex_parameteri(struct gl_context *ctx,
       if (_mesa_is_desktop_gl(ctx)
           && ctx->Extensions.AMD_seamless_cubemap_per_texture) {
          GLenum param = params[0];
+
+         if (!target_allows_setting_sampler_parameters(texObj->Target))
+            goto invalid_operation;
+
          if (param != GL_TRUE && param != GL_FALSE) {
             goto invalid_param;
          }
@@ -528,6 +590,11 @@ invalid_param:
    _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param=%s)",
                _mesa_lookup_enum_by_nr(params[0]));
    return GL_FALSE;
+
+invalid_operation:
+   _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(pname=%s)",
+               _mesa_lookup_enum_by_nr(pname));
+   return GL_FALSE;
 }
 
 
@@ -545,6 +612,9 @@ set_tex_parameterf(struct gl_context *ctx,
       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
          goto invalid_pname;
 
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       if (texObj->Sampler.MinLod == params[0])
          return GL_FALSE;
       flush(ctx);
@@ -555,6 +625,9 @@ set_tex_parameterf(struct gl_context *ctx,
       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
          goto invalid_pname;
 
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       if (texObj->Sampler.MaxLod == params[0])
          return GL_FALSE;
       flush(ctx);
@@ -571,6 +644,9 @@ set_tex_parameterf(struct gl_context *ctx,
 
    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
       if (ctx->Extensions.EXT_texture_filter_anisotropic) {
+         if (!target_allows_setting_sampler_parameters(texObj->Target))
+            goto invalid_operation;
+
          if (texObj->Sampler.MaxAnisotropy == params[0])
             return GL_FALSE;
          if (params[0] < 1.0) {
@@ -598,6 +674,9 @@ set_tex_parameterf(struct gl_context *ctx,
       if (ctx->API != API_OPENGL_COMPAT)
          goto invalid_pname;
 
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       if (texObj->Sampler.LodBias != params[0]) {
 	 flush(ctx);
 	 texObj->Sampler.LodBias = params[0];
@@ -609,6 +688,9 @@ set_tex_parameterf(struct gl_context *ctx,
       if (!_mesa_is_desktop_gl(ctx))
          goto invalid_pname;
 
+      if (!target_allows_setting_sampler_parameters(texObj->Target))
+         goto invalid_operation;
+
       flush(ctx);
       /* ARB_texture_float disables clamping */
       if (ctx->Extensions.ARB_texture_float) {
@@ -633,6 +715,11 @@ invalid_pname:
    _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)",
                _mesa_lookup_enum_by_nr(pname));
    return GL_FALSE;
+
+invalid_operation:
+   _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(pname=%s)",
+               _mesa_lookup_enum_by_nr(pname));
+   return GL_FALSE;
 }
 
 
@@ -1329,7 +1416,7 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
 
          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
             _mesa_update_state_locked(ctx);
-         if (ctx->Color._ClampFragmentColor) {
+         if (_mesa_get_clamp_fragment_color(ctx)) {
             params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
             params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
             params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
diff --git a/mesalib/src/mesa/main/texstorage.c b/mesalib/src/mesa/main/texstorage.c
index 675fd745b..6309b5716 100644
--- a/mesalib/src/mesa/main/texstorage.c
+++ b/mesalib/src/mesa/main/texstorage.c
@@ -202,20 +202,9 @@ clear_texture_fields(struct gl_context *ctx,
 }
 
 
-/**
- * Do error checking for calls to glTexStorage1/2/3D().
- * If an error is found, record it with _mesa_error(), unless the target
- * is a proxy texture.
- * \return GL_TRUE if any error, GL_FALSE otherwise.
- */
-static GLboolean
-tex_storage_error_check(struct gl_context *ctx, GLuint dims, GLenum target,
-                        GLsizei levels, GLenum internalformat,
-                        GLsizei width, GLsizei height, GLsizei depth)
+GLboolean
+_mesa_is_legal_tex_storage_format(struct gl_context *ctx, GLenum internalformat)
 {
-   struct gl_texture_object *texObj;
-   GLboolean legalFormat;
-
    /* check internal format - note that only sized formats are allowed */
    switch (internalformat) {
    case GL_ALPHA:
@@ -250,13 +239,27 @@ tex_storage_error_check(struct gl_context *ctx, GLuint dims, GLenum target,
    case GL_LUMINANCE_INTEGER_EXT:
    case GL_LUMINANCE_ALPHA_INTEGER_EXT:
       /* these unsized formats are illegal */
-      legalFormat = GL_FALSE;
-      break;
+      return GL_FALSE;
    default:
-      legalFormat = _mesa_base_tex_format(ctx, internalformat) > 0;
+      return _mesa_base_tex_format(ctx, internalformat) > 0;
    }
+}
+
+
+/**
+ * Do error checking for calls to glTexStorage1/2/3D().
+ * If an error is found, record it with _mesa_error(), unless the target
+ * is a proxy texture.
+ * \return GL_TRUE if any error, GL_FALSE otherwise.
+ */
+static GLboolean
+tex_storage_error_check(struct gl_context *ctx, GLuint dims, GLenum target,
+                        GLsizei levels, GLenum internalformat,
+                        GLsizei width, GLsizei height, GLsizei depth)
+{
+   struct gl_texture_object *texObj;
 
-   if (!legalFormat) {
+   if (!_mesa_is_legal_tex_storage_format(ctx, internalformat)) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glTexStorage%uD(internalformat = %s)", dims,
                   _mesa_lookup_enum_by_nr(internalformat));
diff --git a/mesalib/src/mesa/main/texstorage.h b/mesalib/src/mesa/main/texstorage.h
index 99382df51..9f172e1ca 100644
--- a/mesalib/src/mesa/main/texstorage.h
+++ b/mesalib/src/mesa/main/texstorage.h
@@ -57,5 +57,8 @@ _mesa_TextureStorage3DEXT(GLuint texture, GLenum target, GLsizei levels,
                           GLenum internalformat,
                           GLsizei width, GLsizei height, GLsizei depth);
 
+extern GLboolean
+_mesa_is_legal_tex_storage_format(struct gl_context *ctx, GLenum internalformat);
+
 
 #endif /* TEXSTORAGE_H */
diff --git a/mesalib/src/mesa/main/version.c b/mesalib/src/mesa/main/version.c
index 8c8192595..c4ae2a6ce 100644
--- a/mesalib/src/mesa/main/version.c
+++ b/mesalib/src/mesa/main/version.c
@@ -233,7 +233,8 @@ compute_version(struct gl_context *ctx)
    const GLboolean ver_3_0 = (ver_2_1 &&
                               ctx->Const.GLSLVersion >= 130 &&
                               ctx->Const.MaxSamples >= 4 &&
-                              ctx->Extensions.ARB_color_buffer_float &&
+                              (ctx->API == API_OPENGL_CORE ||
+                               ctx->Extensions.ARB_color_buffer_float) &&
                               ctx->Extensions.ARB_depth_buffer_float &&
                               ctx->Extensions.ARB_half_float_pixel &&
                               ctx->Extensions.ARB_half_float_vertex &&
diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp
index 2cb5f02f4..14cf5baa7 100644
--- a/mesalib/src/mesa/program/ir_to_mesa.cpp
+++ b/mesalib/src/mesa/program/ir_to_mesa.cpp
@@ -2048,6 +2048,9 @@ ir_to_mesa_visitor::visit(ir_texture *ir)
    case ir_txf_ms:
       assert(!"Unexpected ir_txf_ms opcode");
       break;
+   case ir_lod:
+      assert(!"Unexpected ir_lod opcode");
+      break;
    }
 
    const glsl_type *sampler_type = ir->sampler->type;
diff --git a/mesalib/src/mesa/program/prog_cache.c b/mesalib/src/mesa/program/prog_cache.c
index 47f926b1b..1f1c6142d 100644
--- a/mesalib/src/mesa/program/prog_cache.c
+++ b/mesalib/src/mesa/program/prog_cache.c
@@ -37,6 +37,7 @@
 struct cache_item
 {
    GLuint hash;
+   unsigned keysize;
    void *key;
    struct gl_program *program;
    struct cache_item *next;
@@ -174,7 +175,8 @@ struct gl_program *
 _mesa_search_program_cache(struct gl_program_cache *cache,
                            const void *key, GLuint keysize)
 {
-   if (cache->last && 
+   if (cache->last &&
+       cache->last->keysize == keysize &&
        memcmp(cache->last->key, key, keysize) == 0) {
       return cache->last->program;
    }
@@ -183,7 +185,10 @@ _mesa_search_program_cache(struct gl_program_cache *cache,
       struct cache_item *c;
 
       for (c = cache->items[hash % cache->size]; c; c = c->next) {
-         if (c->hash == hash && memcmp(c->key, key, keysize) == 0) {
+         if (c->hash == hash &&
+             c->keysize == keysize &&
+             memcmp(c->key, key, keysize) == 0) {
+
             cache->last = c;
             return c->program;
          }
@@ -207,6 +212,7 @@ _mesa_program_cache_insert(struct gl_context *ctx,
 
    c->key = malloc(keysize);
    memcpy(c->key, key, keysize);
+   c->keysize = keysize;
 
    c->program = program;  /* no refcount change */
 
@@ -235,6 +241,7 @@ _mesa_shader_cache_insert(struct gl_context *ctx,
 
    c->key = malloc(keysize);
    memcpy(c->key, key, keysize);
+   c->keysize = keysize;
 
    c->program = (struct gl_program *)program;  /* no refcount change */
 
diff --git a/mesalib/src/mesa/program/prog_statevars.c b/mesalib/src/mesa/program/prog_statevars.c
index 5a350798c..09d2a568a 100644
--- a/mesalib/src/mesa/program/prog_statevars.c
+++ b/mesalib/src/mesa/program/prog_statevars.c
@@ -31,6 +31,7 @@
 
 #include "main/glheader.h"
 #include "main/context.h"
+#include "main/blend.h"
 #include "main/imports.h"
 #include "main/macros.h"
 #include "main/mtypes.h"
@@ -239,14 +240,14 @@ _mesa_fetch_state(struct gl_context *ctx, const gl_state_index state[],
       {
          /* state[1] is the texture unit */
          const GLuint unit = (GLuint) state[1];
-         if(ctx->Color._ClampFragmentColor)
+         if (_mesa_get_clamp_fragment_color(ctx))
             COPY_4V(value, ctx->Texture.Unit[unit].EnvColor);
          else
             COPY_4V(value, ctx->Texture.Unit[unit].EnvColorUnclamped);
       }
       return;
    case STATE_FOG_COLOR:
-      if(ctx->Color._ClampFragmentColor)
+      if (_mesa_get_clamp_fragment_color(ctx))
          COPY_4V(value, ctx->Fog.Color);
       else
          COPY_4V(value, ctx->Fog.ColorUnclamped);
@@ -871,6 +872,9 @@ append_token(char *dst, gl_state_index k)
    case STATE_CURRENT_ATTRIB:
       append(dst, "current");
       break;
+   case STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED:
+      append(dst, "currentAttribMaybeVPClamped");
+      break;
    case STATE_NORMAL_SCALE:
       append(dst, "normalScale");
       break;
diff --git a/mesalib/src/mesa/program/register_allocate.c b/mesalib/src/mesa/program/register_allocate.c
index a9064c38c..2c826fc66 100644
--- a/mesalib/src/mesa/program/register_allocate.c
+++ b/mesalib/src/mesa/program/register_allocate.c
@@ -70,6 +70,7 @@
  * this during ra_set_finalize().
  */
 
+#include <stdbool.h>
 #include <ralloc.h>
 
 #include "main/imports.h"
@@ -93,6 +94,8 @@ struct ra_regs {
 
    struct ra_class **classes;
    unsigned int class_count;
+
+   bool round_robin;
 };
 
 struct ra_class {
@@ -185,6 +188,22 @@ ra_alloc_reg_set(void *mem_ctx, unsigned int count)
    return regs;
 }
 
+/**
+ * The register allocator by default prefers to allocate low register numbers,
+ * since it was written for hardware (gen4/5 Intel) that is limited in its
+ * multithreadedness by the number of registers used in a given shader.
+ *
+ * However, for hardware without that restriction, densely packed register
+ * allocation can put serious constraints on instruction scheduling.  This
+ * function tells the allocator to rotate around the registers if possible as
+ * it allocates the nodes.
+ */
+void
+ra_set_allocate_round_robin(struct ra_regs *regs)
+{
+   regs->round_robin = true;
+}
+
 static void
 ra_add_conflict_list(struct ra_regs *regs, unsigned int r1, unsigned int r2)
 {
@@ -436,16 +455,19 @@ GLboolean
 ra_select(struct ra_graph *g)
 {
    int i;
+   int start_search_reg = 0;
 
    while (g->stack_count != 0) {
-      unsigned int r;
+      unsigned int ri;
+      unsigned int r = -1;
       int n = g->stack[g->stack_count - 1];
       struct ra_class *c = g->regs->classes[g->nodes[n].class];
 
       /* Find the lowest-numbered reg which is not used by a member
        * of the graph adjacent to us.
        */
-      for (r = 0; r < g->regs->count; r++) {
+      for (ri = 0; ri < g->regs->count; ri++) {
+         r = (start_search_reg + ri) % g->regs->count;
 	 if (!c->regs[r])
 	    continue;
 
@@ -461,12 +483,15 @@ ra_select(struct ra_graph *g)
 	 if (i == g->nodes[n].adjacency_count)
 	    break;
       }
-      if (r == g->regs->count)
+      if (ri == g->regs->count)
 	 return GL_FALSE;
 
       g->nodes[n].reg = r;
       g->nodes[n].in_stack = GL_FALSE;
       g->stack_count--;
+
+      if (g->regs->round_robin)
+         start_search_reg = r + 1;
    }
 
    return GL_TRUE;
diff --git a/mesalib/src/mesa/program/register_allocate.h b/mesalib/src/mesa/program/register_allocate.h
index 2a9d61191..fa119e320 100644
--- a/mesalib/src/mesa/program/register_allocate.h
+++ b/mesalib/src/mesa/program/register_allocate.h
@@ -37,6 +37,7 @@ struct ra_regs;
  * two real registers from which they are composed.
  */
 struct ra_regs *ra_alloc_reg_set(void *mem_ctx, unsigned int count);
+void ra_set_allocate_round_robin(struct ra_regs *regs);
 unsigned int ra_alloc_reg_class(struct ra_regs *regs);
 void ra_add_reg_conflict(struct ra_regs *regs,
 			 unsigned int r1, unsigned int r2);
diff --git a/mesalib/src/mesa/state_tracker/st_atom_constbuf.c b/mesalib/src/mesa/state_tracker/st_atom_constbuf.c
index 961fb28a9..56ba96fe3 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_constbuf.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_constbuf.c
@@ -39,6 +39,7 @@
 #include "pipe/p_defines.h"
 #include "util/u_inlines.h"
 #include "util/u_upload_mgr.h"
+#include "cso_cache/cso_context.h"
 
 #include "st_debug.h"
 #include "st_context.h"
@@ -96,16 +97,17 @@ void st_upload_constants( struct st_context *st,
          _mesa_print_parameter_list(params);
       }
 
-      st->pipe->set_constant_buffer(st->pipe, shader_type, 0, &cb);
+      cso_set_constant_buffer(st->cso_context, shader_type, 0, &cb);
       pipe_resource_reference(&cb.buffer, NULL);
 
       st->state.constants[shader_type].ptr = params->ParameterValues;
       st->state.constants[shader_type].size = paramBytes;
    }
    else if (st->state.constants[shader_type].ptr) {
+      /* Unbind. */
       st->state.constants[shader_type].ptr = NULL;
       st->state.constants[shader_type].size = 0;
-      st->pipe->set_constant_buffer(st->pipe, shader_type, 0, NULL);
+      cso_set_constant_buffer(st->cso_context, shader_type, 0, NULL);
    }
 }
 
@@ -196,7 +198,7 @@ static void st_bind_ubos(struct st_context *st,
 
       cb.buffer_size = st_obj->buffer->width0 - binding->Offset;
 
-      st->pipe->set_constant_buffer(st->pipe, shader_type, 1 + i, &cb);
+      cso_set_constant_buffer(st->cso_context, shader_type, 1 + i, &cb);
       pipe_resource_reference(&cb.buffer, NULL);
    }
 }
diff --git a/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c b/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
index 866e5627d..62464b475 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
@@ -227,8 +227,7 @@ static void update_raster_state( struct st_context *st )
 
    /* _NEW_FRAG_CLAMP */
    raster->clamp_fragment_color = !st->clamp_frag_color_in_shader &&
-                                  ctx->Color._ClampFragmentColor &&
-                                  !ctx->DrawBuffer->_IntegerColor;
+                                  ctx->Color._ClampFragmentColor;
    raster->gl_rasterization_rules = 1;
 
    /* _NEW_RASTERIZER_DISCARD */
diff --git a/mesalib/src/mesa/state_tracker/st_atom_shader.c b/mesalib/src/mesa/state_tracker/st_atom_shader.c
index c1d7c80bb..c0239e929 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_shader.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_shader.c
@@ -86,8 +86,7 @@ update_fp( struct st_context *st )
 
    /* _NEW_FRAG_CLAMP */
    key.clamp_color = st->clamp_frag_color_in_shader &&
-                     st->ctx->Color._ClampFragmentColor &&
-                     !st->ctx->DrawBuffer->_IntegerColor;
+                     st->ctx->Color._ClampFragmentColor;
 
    st->fp_variant = st_get_fp_variant(st, stfp, &key);
 
diff --git a/mesalib/src/mesa/state_tracker/st_cb_bitmap.c b/mesalib/src/mesa/state_tracker/st_cb_bitmap.c
index bae9ff858..b3ca40501 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_bitmap.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_bitmap.c
@@ -417,8 +417,7 @@ draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
    key.st = st;
    key.bitmap = GL_TRUE;
    key.clamp_color = st->clamp_frag_color_in_shader &&
-                     st->ctx->Color._ClampFragmentColor &&
-                     !st->ctx->DrawBuffer->_IntegerColor;
+                     st->ctx->Color._ClampFragmentColor;
 
    fpv = st_get_fp_variant(st, st->fp, &key);
 
@@ -766,6 +765,7 @@ st_Bitmap(struct gl_context *ctx, GLint x, GLint y,
       /* create pass-through vertex shader now */
       const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
                                       TGSI_SEMANTIC_COLOR,
+        st->needs_texcoord_semantic ? TGSI_SEMANTIC_TEXCOORD :
                                       TGSI_SEMANTIC_GENERIC };
       const uint semantic_indexes[] = { 0, 0, 0 };
       st->bitmap.vs = util_make_vertex_passthrough_shader(st->pipe, 3,
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
index f0baa3435..f5a1e27f7 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -294,6 +294,9 @@ static void *
 make_passthrough_vertex_shader(struct st_context *st, 
                                GLboolean passColor)
 {
+   const unsigned texcoord_semantic = st->needs_texcoord_semantic ?
+      TGSI_SEMANTIC_TEXCOORD : TGSI_SEMANTIC_GENERIC;
+
    if (!st->drawpix.vert_shaders[passColor]) {
       struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
 
@@ -307,7 +310,7 @@ make_passthrough_vertex_shader(struct st_context *st,
       
       /* MOV result.texcoord0, vertex.attr[1]; */
       ureg_MOV(ureg, 
-               ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ),
+               ureg_DECL_output( ureg, texcoord_semantic, 0 ),
                ureg_DECL_vs_input( ureg, 1 ));
       
       if (passColor) {
@@ -707,8 +710,7 @@ draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
       struct pipe_rasterizer_state rasterizer;
       memset(&rasterizer, 0, sizeof(rasterizer));
       rasterizer.clamp_fragment_color = !st->clamp_frag_color_in_shader &&
-                                        ctx->Color._ClampFragmentColor &&
-                                        !ctx->DrawBuffer->_IntegerColor;
+                                        ctx->Color._ClampFragmentColor;
       rasterizer.gl_rasterization_rules = 1;
       rasterizer.depth_clip = !ctx->Transform.DepthClamp;
       rasterizer.scissor = ctx->Scissor.Enabled;
@@ -1034,8 +1036,7 @@ get_color_fp_variant(struct st_context *st)
                        ctx->Pixel.AlphaScale != 1.0);
    key.pixelMaps = ctx->Pixel.MapColorFlag;
    key.clamp_color = st->clamp_frag_color_in_shader &&
-                     st->ctx->Color._ClampFragmentColor &&
-                     !st->ctx->DrawBuffer->_IntegerColor;
+                     st->ctx->Color._ClampFragmentColor;
 
    fpv = st_get_fp_variant(st, st->fp, &key);
 
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawtex.c b/mesalib/src/mesa/state_tracker/st_cb_drawtex.c
index a8806c91e..c4efce02f 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawtex.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawtex.c
@@ -209,7 +209,9 @@ st_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
             SET_ATTRIB(2, attr, s1, t1, 0.0f, 1.0f);  /* upper right */
             SET_ATTRIB(3, attr, s0, t1, 0.0f, 1.0f);  /* upper left */
 
-            semantic_names[attr] = TGSI_SEMANTIC_GENERIC;
+            semantic_names[attr] = st->needs_texcoord_semantic ?
+               TGSI_SEMANTIC_TEXCOORD : TGSI_SEMANTIC_GENERIC;
+            /* XXX: should this use semantic index i instead of 0 ? */
             semantic_indexes[attr] = 0;
 
             attr++;
diff --git a/mesalib/src/mesa/state_tracker/st_cb_readpixels.c b/mesalib/src/mesa/state_tracker/st_cb_readpixels.c
index bfed98870..9fab113fa 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_readpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_readpixels.c
@@ -133,7 +133,6 @@ st_readpixels(struct gl_context *ctx, GLint x, GLint y,
        !screen->is_format_supported(screen, src_format, src->target,
                                     src->nr_samples,
                                     PIPE_BIND_SAMPLER_VIEW)) {
-      printf("fallback: src format unsupported %s\n", util_format_short_name(src_format));
       goto fallback;
    }
 
@@ -147,8 +146,6 @@ st_readpixels(struct gl_context *ctx, GLint x, GLint y,
    dst_format = st_choose_matching_format(screen, bind, format, type,
                                           pack->SwapBytes);
    if (dst_format == PIPE_FORMAT_NONE) {
-      printf("fallback: no matching format for %s, %s\n",
-             _mesa_lookup_enum_by_nr(format), _mesa_lookup_enum_by_nr(type));
       goto fallback;
    }
 
diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c
index 94fbbf7be..0cd0d77af 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c
@@ -868,7 +868,7 @@ st_GetTexImage(struct gl_context * ctx,
       goto fallback;
    }
 
-   if (!stImage->pt) {
+   if (!stImage->pt || !src) {
       goto fallback;
    }
 
diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c
index 11db9d3f3..2d8b9efec 100644
--- a/mesalib/src/mesa/state_tracker/st_extensions.c
+++ b/mesalib/src/mesa/state_tracker/st_extensions.c
@@ -629,6 +629,7 @@ void st_init_extensions(struct st_context *st)
       ctx->Const.PrimitiveRestartInSoftware = GL_TRUE;
    }
 
+   /* ARB_color_buffer_float. */
    if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
       ctx->Extensions.ARB_color_buffer_float = GL_TRUE;
 
@@ -639,6 +640,16 @@ void st_init_extensions(struct st_context *st)
       if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
          st->clamp_frag_color_in_shader = TRUE;
       }
+
+      /* For drivers which cannot do color clamping, it's better to just
+       * disable ARB_color_buffer_float in the core profile, because
+       * the clamping is deprecated there anyway. */
+      if (ctx->API == API_OPENGL_CORE &&
+          (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
+         st->clamp_vert_color_in_shader = GL_FALSE;
+         st->clamp_frag_color_in_shader = GL_FALSE;
+         ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
+      }
    }
 
    if (screen->fence_finish) {
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 e3718eeda..338c652cb 100644
--- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -1009,7 +1009,9 @@ glsl_to_tgsi_visitor::get_temp(const glsl_type *type)
    src.reladdr = NULL;
    src.negate = 0;
 
-   if (type->is_array() || type->is_matrix()) {
+   if (!options->EmitNoIndirectTemp &&
+       (type->is_array() || type->is_matrix())) {
+
       src.file = PROGRAM_ARRAY;
       src.index = next_array << 16 | 0x8000;
       array_sizes[next_array] = type_size(type);
@@ -2772,6 +2774,9 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
    case ir_txf_ms:
       assert(!"Unexpected ir_txf_ms opcode");
       break;
+   case ir_lod:
+      assert(!"Unexpected ir_lod opcode");
+      break;
    }
 
    if (ir->projector) {
@@ -3191,7 +3196,7 @@ glsl_to_tgsi_visitor::simplify_cmp(void)
          prevWriteMask = tempWrites[inst->dst.index];
          tempWrites[inst->dst.index] |= inst->dst.writemask;
       } else
-         break;
+         continue;
 
       /* For a CMP to be considered a conditional write, the destination
        * register and source register two must be the same. */
diff --git a/mesalib/src/mesa/state_tracker/st_manager.c b/mesalib/src/mesa/state_tracker/st_manager.c
index 0b025d9d5..03e086a72 100644
--- a/mesalib/src/mesa/state_tracker/st_manager.c
+++ b/mesalib/src/mesa/state_tracker/st_manager.c
@@ -170,9 +170,8 @@ st_context_validate(struct st_context *st,
 
 /**
  * Validate a framebuffer to make sure up-to-date pipe_textures are used.
- * The context we need to pass in is s dummy context needed only to be
- * able to get a pipe context to create pipe surfaces, and to have a
- * context to call _mesa_resize_framebuffer():
+ * The context is only used for creating pipe surfaces and for calling
+ * _mesa_resize_framebuffer().
  * (That should probably be rethought, since those surfaces become
  * drawable state, not context state, and can be freed by another pipe
  * context).
diff --git a/mesalib/src/mesa/swrast/s_blit.c b/mesalib/src/mesa/swrast/s_blit.c
index 82fa43f1c..051354dc8 100644
--- a/mesalib/src/mesa/swrast/s_blit.c
+++ b/mesalib/src/mesa/swrast/s_blit.c
@@ -110,8 +110,8 @@ blit_nearest(struct gl_context *ctx,
              GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
              GLbitfield buffer)
 {
-   struct gl_renderbuffer *readRb, *drawRb;
-   struct gl_renderbuffer_attachment *readAtt, *drawAtt;
+   struct gl_renderbuffer *readRb, *drawRb = NULL;
+   struct gl_renderbuffer_attachment *readAtt = NULL, *drawAtt = NULL;
    struct gl_framebuffer *readFb = ctx->ReadBuffer;
    struct gl_framebuffer *drawFb = ctx->DrawBuffer;
    GLuint numDrawBuffers = 0;
@@ -135,12 +135,12 @@ blit_nearest(struct gl_context *ctx,
       UNPACK_Z_FLOAT,
       UNPACK_Z_INT,
       UNPACK_S,
-   } mode;
+   } mode = DIRECT;
    GLubyte *srcMap, *dstMap;
    GLint srcRowStride, dstRowStride;
    GLint dstRow;
 
-   GLint pixelSize;
+   GLint pixelSize = 0;
    GLvoid *srcBuffer, *dstBuffer;
    GLint prevY = -1;