Merge remote-tracking branch 'origin/released'

* origin/released:
  fontconfig libX11 mesalib pixman xserver xkeyboard-config git update 4 Mar 2013

Conflicts:
	libX11/src/xkb/XKBGAlloc.c
	libX11/src/xkb/XKBMisc.c

22 files changed, 637 insertions, 66 deletions

diff --git a/mesalib/src/mesa/drivers/common/driverfuncs.c b/mesalib/src/mesa/drivers/common/driverfuncs.c
index 43c9de97f..731d46658 100644
--- a/mesalib/src/mesa/drivers/common/driverfuncs.c
+++ b/mesalib/src/mesa/drivers/common/driverfuncs.c
@@ -209,6 +209,9 @@ _mesa_init_driver_functions(struct dd_function_table *driver)
 
    /* GL_ARB_texture_storage */
    driver->AllocTextureStorage = _swrast_AllocTextureStorage;
+
+   /* GL_ARB_texture_multisample */
+   driver->GetSamplePosition = NULL;
 }
 
 
diff --git a/mesalib/src/mesa/main/attrib.c b/mesalib/src/mesa/main/attrib.c
index a95128328..3b991bcac 100644
--- a/mesalib/src/mesa/main/attrib.c
+++ b/mesalib/src/mesa/main/attrib.c
@@ -130,6 +130,9 @@ struct gl_enable_attrib
    GLboolean VertexProgramPointSize;
    GLboolean VertexProgramTwoSide;
 
+   /* GL_ARB_fragment_program */
+   GLboolean FragmentProgram;
+
    /* GL_ARB_point_sprite / GL_NV_point_sprite */
    GLboolean PointSprite;
    GLboolean FragmentShaderATI;
@@ -316,6 +319,10 @@ _mesa_PushAttrib(GLbitfield mask)
       attr->VertexProgram = ctx->VertexProgram.Enabled;
       attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled;
       attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled;
+
+      /* GL_ARB_fragment_program */
+      attr->FragmentProgram = ctx->FragmentProgram.Enabled;
+
       save_attrib_data(&head, GL_ENABLE_BIT, attr);
 
       /* GL_ARB_framebuffer_sRGB / GL_EXT_framebuffer_sRGB */
@@ -607,6 +614,11 @@ pop_enable_group(struct gl_context *ctx, const struct gl_enable_attrib *enable)
                    enable->VertexProgramTwoSide,
                    GL_VERTEX_PROGRAM_TWO_SIDE_ARB);
 
+   /* GL_ARB_fragment_program */
+   TEST_AND_UPDATE(ctx->FragmentProgram.Enabled,
+                   enable->FragmentProgram,
+                   GL_FRAGMENT_PROGRAM_ARB);
+
    /* GL_ARB_framebuffer_sRGB / GL_EXT_framebuffer_sRGB */
    TEST_AND_UPDATE(ctx->Color.sRGBEnabled, enable->sRGBEnabled,
                    GL_FRAMEBUFFER_SRGB);
@@ -767,6 +779,9 @@ pop_texture_group(struct gl_context *ctx, struct texture_state *texstate)
             continue;
          else if (obj->Target == GL_TEXTURE_EXTERNAL_OES)
             continue;
+         else if (obj->Target == GL_TEXTURE_2D_MULTISAMPLE ||
+                  obj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
+            continue;
 
          target = obj->Target;
 
diff --git a/mesalib/src/mesa/main/context.c b/mesalib/src/mesa/main/context.c
index 02acfc2aa..cdcf7adfa 100644
--- a/mesalib/src/mesa/main/context.c
+++ b/mesalib/src/mesa/main/context.c
@@ -661,6 +661,11 @@ _mesa_init_constants(struct gl_context *ctx)
 
    /* ES 3.0 or ARB_ES3_compatibility */
    ctx->Const.MaxElementIndex = 0xffffffffu;
+
+   /* GL_ARB_texture_multisample */
+   ctx->Const.MaxColorTextureSamples = 1;
+   ctx->Const.MaxDepthTextureSamples = 1;
+   ctx->Const.MaxIntegerSamples = 1;
 }
 
 
diff --git a/mesalib/src/mesa/main/dd.h b/mesalib/src/mesa/main/dd.h
index 9c818ccd8..4860d4d12 100644
--- a/mesalib/src/mesa/main/dd.h
+++ b/mesalib/src/mesa/main/dd.h
@@ -638,6 +638,7 @@ struct dd_function_table {
    struct gl_query_object * (*NewQueryObject)(struct gl_context *ctx, GLuint id);
    void (*DeleteQuery)(struct gl_context *ctx, struct gl_query_object *q);
    void (*BeginQuery)(struct gl_context *ctx, struct gl_query_object *q);
+   void (*QueryCounter)(struct gl_context *ctx, struct gl_query_object *q);
    void (*EndQuery)(struct gl_context *ctx, struct gl_query_object *q);
    void (*CheckQuery)(struct gl_context *ctx, struct gl_query_object *q);
    void (*WaitQuery)(struct gl_context *ctx, struct gl_query_object *q);
@@ -833,6 +834,14 @@ struct dd_function_table {
     * This should be equivalent to glGetInteger64v(GL_TIMESTAMP);
     */
    uint64_t (*GetTimestamp)(struct gl_context *ctx);
+
+   /**
+    * \name GL_ARB_texture_multisample
+    */
+   void (*GetSamplePosition)(struct gl_context *ctx,
+                             struct gl_framebuffer *fb,
+                             GLuint index,
+                             GLfloat *outValue);
 };
 
 
diff --git a/mesalib/src/mesa/main/enable.c b/mesalib/src/mesa/main/enable.c
index 7e85fdfb3..b688f050b 100644
--- a/mesalib/src/mesa/main/enable.c
+++ b/mesalib/src/mesa/main/enable.c
@@ -1013,6 +1013,17 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
          }
          break;
 
+      /* ARB_texture_multisample */
+      case GL_SAMPLE_MASK:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         CHECK_EXTENSION(ARB_texture_multisample, cap);
+         if (ctx->Multisample.SampleMask == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+         ctx->Multisample.SampleMask = state;
+         break;
+
       default:
          goto invalid_enum_error;
    }
@@ -1583,6 +1594,13 @@ _mesa_IsEnabled( GLenum cap )
 	 CHECK_EXTENSION(OES_EGL_image_external);
          return is_texture_enabled(ctx, TEXTURE_EXTERNAL_BIT);
 
+      /* ARB_texture_multisample */
+      case GL_SAMPLE_MASK:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         CHECK_EXTENSION(ARB_texture_multisample);
+         return ctx->Multisample.SampleMask;
+
       default:
          goto invalid_enum_error;
    }
diff --git a/mesalib/src/mesa/main/fbobject.c b/mesalib/src/mesa/main/fbobject.c
index 89bc57509..d6acc5896 100644
--- a/mesalib/src/mesa/main/fbobject.c
+++ b/mesalib/src/mesa/main/fbobject.c
@@ -745,6 +745,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    GLenum intFormat = GL_NONE; /* color buffers' internal format */
    GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
    GLint numSamples = -1;
+   GLint fixedSampleLocations = -1;
    GLint i;
    GLuint j;
 
@@ -814,12 +815,29 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
          f = texImg->_BaseFormat;
          attFormat = texImg->TexFormat;
          numImages++;
+
          if (!is_format_color_renderable(ctx, attFormat, texImg->InternalFormat) &&
              !is_legal_depth_format(ctx, f)) {
             fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
             fbo_incomplete("texture attachment incomplete", -1);
             return;
          }
+
+         if (numSamples < 0)
+            numSamples = texImg->NumSamples;
+         else if (numSamples != texImg->NumSamples) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete("inconsistent sample count", -1);
+            return;
+         }
+
+         if (fixedSampleLocations < 0)
+            fixedSampleLocations = texImg->FixedSampleLocations;
+         else if (fixedSampleLocations != texImg->FixedSampleLocations) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete("inconsistent fixed sample locations", -1);
+            return;
+         }
       }
       else if (att->Type == GL_RENDERBUFFER_EXT) {
          minWidth = MIN2(minWidth, att->Renderbuffer->Width);
@@ -829,24 +847,35 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
          f = att->Renderbuffer->InternalFormat;
          attFormat = att->Renderbuffer->Format;
          numImages++;
+
+         if (numSamples < 0)
+            numSamples = att->Renderbuffer->NumSamples;
+         else if (numSamples != att->Renderbuffer->NumSamples) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete("inconsistent sample count", -1);
+            return;
+         }
+
+         /* RENDERBUFFER has fixedSampleLocations implicitly true */
+         if (fixedSampleLocations < 0)
+            fixedSampleLocations = GL_TRUE;
+         else if (fixedSampleLocations != GL_TRUE) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete("inconsistent fixed sample locations", -1);
+            return;
+         }
       }
       else {
          assert(att->Type == GL_NONE);
          continue;
       }
 
-      if (att->Renderbuffer && numSamples < 0) {
-         /* first buffer */
-         numSamples = att->Renderbuffer->NumSamples;
-      }
-
       /* check if integer color */
       fb->_IntegerColor = _mesa_is_format_integer_color(attFormat);
 
-      /* Error-check width, height, format, samples
-       */
+      /* Error-check width, height, format */
       if (numImages == 1) {
-         /* save format, num samples */
+         /* save format */
          if (i >= 0) {
             intFormat = f;
          }
@@ -866,12 +895,6 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
                return;
             }
          }
-         if (att->Renderbuffer &&
-             att->Renderbuffer->NumSamples != numSamples) {
-            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
-            fbo_incomplete("inconsistant number of samples", i);
-            return;
-         }
       }
 
       /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
@@ -2069,7 +2092,8 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
             err = (texObj->Target != GL_TEXTURE_3D) &&
                 (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
                 (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT) &&
-                (texObj->Target != GL_TEXTURE_CUBE_MAP_ARRAY);
+                (texObj->Target != GL_TEXTURE_CUBE_MAP_ARRAY) &&
+                (texObj->Target != GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
          }
          else {
             /* Make sure textarget is consistent with the texture's type */
@@ -2103,7 +2127,8 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
       }
       else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
                (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT) ||
-               (texObj->Target == GL_TEXTURE_CUBE_MAP_ARRAY)) {
+               (texObj->Target == GL_TEXTURE_CUBE_MAP_ARRAY) ||
+               (texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)) {
          if (zoffset < 0 ||
              zoffset >= (GLint) ctx->Const.MaxArrayTextureLayers) {
             _mesa_error(ctx, GL_INVALID_VALUE,
@@ -2255,6 +2280,11 @@ _mesa_FramebufferTexture2D(GLenum target, GLenum attachment,
          error = (_mesa_is_gles(ctx) && ctx->Version < 30)
             || !ctx->Extensions.EXT_texture_array;
          break;
+      case GL_TEXTURE_2D_MULTISAMPLE:
+      case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+         error = _mesa_is_gles(ctx)
+            || !ctx->Extensions.ARB_texture_multisample;
+         break;
       default:
          error = GL_TRUE;
       }
diff --git a/mesalib/src/mesa/main/get.c b/mesalib/src/mesa/main/get.c
index da1e01cb5..2399f9c9d 100644
--- a/mesalib/src/mesa/main/get.c
+++ b/mesalib/src/mesa/main/get.c
@@ -354,6 +354,7 @@ EXTRA_EXT(ARB_timer_query);
 EXTRA_EXT(ARB_map_buffer_alignment);
 EXTRA_EXT(ARB_texture_cube_map_array);
 EXTRA_EXT(ARB_texture_buffer_range);
+EXTRA_EXT(ARB_texture_multisample);
 
 static const int
 extra_NV_primitive_restart[] = {
@@ -693,6 +694,8 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
    case GL_TEXTURE_BINDING_RECTANGLE_NV:
    case GL_TEXTURE_BINDING_EXTERNAL_OES:
    case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
+   case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
+   case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
       unit = ctx->Texture.CurrentUnit;
       v->value_int =
 	 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
@@ -1632,6 +1635,15 @@ find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
 	 goto invalid_enum;
       v->value_int = ctx->UniformBufferBindings[index].Size;
       return TYPE_INT;
+
+   /* ARB_texture_multisample / GL3.2 */
+   case GL_SAMPLE_MASK_VALUE:
+      if (index != 0)
+         goto invalid_value;
+      if (!ctx->Extensions.ARB_texture_multisample)
+         goto invalid_enum;
+      v->value_int = ctx->Multisample.SampleMaskValue;
+      return TYPE_INT;
    }
 
  invalid_enum:
diff --git a/mesalib/src/mesa/main/get_hash_params.py b/mesalib/src/mesa/main/get_hash_params.py
index 1b7d6ad8e..5022ddc40 100644
--- a/mesalib/src/mesa/main/get_hash_params.py
+++ b/mesalib/src/mesa/main/get_hash_params.py
@@ -658,6 +658,16 @@ descriptor=[
   [ "TEXTURE_BUFFER_FORMAT_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
   [ "TEXTURE_BUFFER_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
 
+# GL_ARB_texture_multisample / GL 3.2
+  [ "TEXTURE_BINDING_2D_MULTISAMPLE", "LOC_CUSTOM, TYPE_INT, TEXTURE_2D_MULTISAMPLE_INDEX, extra_ARB_texture_multisample" ],
+  [ "TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY", "LOC_CUSTOM, TYPE_INT, TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX, extra_ARB_texture_multisample" ],
+  [ "MAX_COLOR_TEXTURE_SAMPLES", "CONTEXT_INT(Const.MaxColorTextureSamples), extra_ARB_texture_multisample" ],
+  [ "MAX_DEPTH_TEXTURE_SAMPLES", "CONTEXT_INT(Const.MaxDepthTextureSamples), extra_ARB_texture_multisample" ],
+  [ "MAX_INTEGER_SAMPLES", "CONTEXT_INT(Const.MaxIntegerSamples), extra_ARB_texture_multisample" ],
+  [ "SAMPLE_MASK", "CONTEXT_BOOL(Multisample.SampleMask), extra_ARB_texture_multisample" ],
+  [ "MAX_SAMPLE_MASK_WORDS", "CONST(1), extra_ARB_texture_multisample" ],
+
+
 # GL_ARB_sampler_objects / GL 3.3
   [ "SAMPLER_BINDING", "LOC_CUSTOM, TYPE_INT, GL_SAMPLER_BINDING, NO_EXTRA" ],
 
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index b92f98e7d..a80944c81 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -993,6 +993,12 @@ struct gl_multisample_attrib
    GLboolean SampleCoverage;
    GLfloat SampleCoverageValue;
    GLboolean SampleCoverageInvert;
+
+   /* ARB_texture_multisample / GL3.2 additions */
+   GLboolean SampleMask;
+   GLbitfield SampleMaskValue; /* GL spec defines this as an array but >32x MSAA is
+                                * madness
+                                */
 };
 
 
@@ -1148,6 +1154,8 @@ struct gl_stencil_attrib
  */
 typedef enum
 {
+   TEXTURE_2D_MULTISAMPLE_INDEX,
+   TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX,
    TEXTURE_CUBE_ARRAY_INDEX,
    TEXTURE_BUFFER_INDEX,
    TEXTURE_2D_ARRAY_INDEX,
@@ -1167,6 +1175,8 @@ typedef enum
  * Used for Texture.Unit[]._ReallyEnabled flags.
  */
 /*@{*/
+#define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
+#define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
 #define TEXTURE_BUFFER_BIT   (1 << TEXTURE_BUFFER_INDEX)
 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
@@ -1212,6 +1222,10 @@ struct gl_texture_image
    GLuint Level;                /**< Which mipmap level am I? */
    /** Cube map face: index into gl_texture_object::Image[] array */
    GLuint Face;
+
+   /** GL_ARB_texture_multisample */
+   GLuint NumSamples;               /**< Sample count, or 0 for non-multisample */
+   GLboolean FixedSampleLocations;  /**< Same sample locations for all pixels? */
 };
 
 
@@ -3027,6 +3041,11 @@ struct gl_constants
     * backslash character ('\') in GLSL source.
     */
    GLboolean DisableGLSLLineContinuations;
+
+   /** GL_ARB_texture_multisample */
+   GLint MaxColorTextureSamples;
+   GLint MaxDepthTextureSamples;
+   GLint MaxIntegerSamples;
 };
 
 
diff --git a/mesalib/src/mesa/main/multisample.c b/mesalib/src/mesa/main/multisample.c
index f792ad01e..248494615 100644
--- a/mesalib/src/mesa/main/multisample.c
+++ b/mesalib/src/mesa/main/multisample.c
@@ -28,6 +28,7 @@
 #include "main/macros.h"
 #include "main/multisample.h"
 #include "main/mtypes.h"
+#include "main/fbobject.h"
 
 
 /**
@@ -59,4 +60,55 @@ _mesa_init_multisample(struct gl_context *ctx)
    ctx->Multisample.SampleCoverage = GL_FALSE;
    ctx->Multisample.SampleCoverageValue = 1.0;
    ctx->Multisample.SampleCoverageInvert = GL_FALSE;
+
+   /* ARB_texture_multisample / GL3.2 additions */
+   ctx->Multisample.SampleMask = GL_FALSE;
+   ctx->Multisample.SampleMaskValue = ~(GLbitfield)0;
+}
+
+
+void GLAPIENTRY
+_mesa_GetMultisamplefv(GLenum pname, GLuint index, GLfloat * val)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   switch (pname) {
+   case GL_SAMPLE_POSITION: {
+      if (index >= ctx->DrawBuffer->Visual.samples) {
+         _mesa_error( ctx, GL_INVALID_VALUE, "glGetMultisamplefv(index)" );
+         return;
+      }
+
+      ctx->Driver.GetSamplePosition(ctx, ctx->DrawBuffer, index, val);
+
+      /* winsys FBOs are upside down */
+      if (_mesa_is_winsys_fbo(ctx->DrawBuffer))
+         val[1] = 1 - val[1];
+
+      return;
+   }
+
+   default:
+      _mesa_error( ctx, GL_INVALID_ENUM, "glGetMultisamplefv(pname)" );
+      return;
+   }
+}
+
+void GLAPIENTRY
+_mesa_SampleMaski(GLuint index, GLbitfield mask)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (!ctx->Extensions.ARB_texture_multisample) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glSampleMaski");
+      return;
+   }
+
+   if (index != 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glSampleMaski(index)");
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+   ctx->Multisample.SampleMaskValue = mask;
 }
diff --git a/mesalib/src/mesa/main/multisample.h b/mesalib/src/mesa/main/multisample.h
index 30726c34c..9e6b8e0d3 100644
--- a/mesalib/src/mesa/main/multisample.h
+++ b/mesalib/src/mesa/main/multisample.h
@@ -38,4 +38,10 @@ extern void
 _mesa_init_multisample(struct gl_context *ctx);
 
 
+extern void GLAPIENTRY
+_mesa_GetMultisamplefv(GLenum pname, GLuint index, GLfloat* val);
+
+extern void GLAPIENTRY
+_mesa_SampleMaski(GLuint index, GLbitfield mask);
+
 #endif
diff --git a/mesalib/src/mesa/main/queryobj.c b/mesalib/src/mesa/main/queryobj.c
index 3fdb75323..3de736828 100644
--- a/mesalib/src/mesa/main/queryobj.c
+++ b/mesalib/src/mesa/main/queryobj.c
@@ -486,9 +486,14 @@ _mesa_QueryCounter(GLuint id, GLenum target)
    q->Result = 0;
    q->Ready = GL_FALSE;
 
-   /* QueryCounter is implemented using EndQuery without BeginQuery
-    * in drivers. This is actually Direct3D and Gallium convention. */
-   ctx->Driver.EndQuery(ctx, q);
+   if (ctx->Driver.QueryCounter) {
+      ctx->Driver.QueryCounter(ctx, q);
+   } else {
+      /* QueryCounter is implemented using EndQuery without BeginQuery
+       * in drivers. This is actually Direct3D and Gallium convention.
+       */
+      ctx->Driver.EndQuery(ctx, q);
+   }
 }
 
 
diff --git a/mesalib/src/mesa/main/shared.c b/mesalib/src/mesa/main/shared.c
index a98a45c75..408125998 100644
--- a/mesalib/src/mesa/main/shared.c
+++ b/mesalib/src/mesa/main/shared.c
@@ -92,6 +92,8 @@ _mesa_alloc_shared_state(struct gl_context *ctx)
    for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
       /* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */
       static const GLenum targets[] = {
+         GL_TEXTURE_2D_MULTISAMPLE,
+         GL_TEXTURE_2D_MULTISAMPLE_ARRAY,
          GL_TEXTURE_CUBE_MAP_ARRAY,
          GL_TEXTURE_BUFFER,
          GL_TEXTURE_2D_ARRAY_EXT,
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index f0de0fb49..0dcf88ae4 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -661,7 +661,7 @@ _mesa_is_proxy_texture(GLenum target)
     * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
     * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
     */
-   assert(NUM_TEXTURE_TARGETS == 8 + 2);
+   assert(NUM_TEXTURE_TARGETS == 10 + 2);
 
    return (target == GL_PROXY_TEXTURE_1D ||
            target == GL_PROXY_TEXTURE_2D ||
@@ -670,7 +670,9 @@ _mesa_is_proxy_texture(GLenum target)
            target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
            target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
            target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
-           target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY);
+           target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
+           target == GL_PROXY_TEXTURE_2D_MULTISAMPLE ||
+           target == GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY);
 }
 
 
@@ -711,6 +713,12 @@ _mesa_get_proxy_target(GLenum target)
    case GL_TEXTURE_CUBE_MAP_ARRAY:
    case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
       return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY;
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+      return GL_PROXY_TEXTURE_2D_MULTISAMPLE;
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      return GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY;
    default:
       _mesa_problem(NULL, "unexpected target in _mesa_get_proxy_target()");
       return 0;
@@ -788,6 +796,18 @@ _mesa_select_tex_object(struct gl_context *ctx,
       case GL_TEXTURE_EXTERNAL_OES:
          return ctx->Extensions.OES_EGL_image_external
             ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
+      case GL_TEXTURE_2D_MULTISAMPLE:
+         return ctx->Extensions.ARB_texture_multisample
+            ? texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_INDEX] : NULL;
+      case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+         return ctx->Extensions.ARB_texture_multisample
+            ? ctx->Texture.ProxyTex[TEXTURE_2D_MULTISAMPLE_INDEX] : NULL;
+      case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+         return ctx->Extensions.ARB_texture_multisample
+            ? texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX] : NULL;
+      case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+         return ctx->Extensions.ARB_texture_multisample
+            ? ctx->Texture.ProxyTex[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX] : NULL;
       default:
          _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
          return NULL;
@@ -918,6 +938,16 @@ get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
          return NULL;
       texIndex = TEXTURE_CUBE_ARRAY_INDEX;
       break;
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+      if (level > 0)
+         return 0;
+      texIndex = TEXTURE_2D_MULTISAMPLE_INDEX;
+      break;
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      if (level > 0)
+         return 0;
+      texIndex = TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX;
+      break;
    default:
       return NULL;
    }
@@ -987,6 +1017,13 @@ _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
    case GL_TEXTURE_BUFFER:
       return ctx->API == API_OPENGL_CORE &&
              ctx->Extensions.ARB_texture_buffer_object ? 1 : 0;
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      return _mesa_is_desktop_gl(ctx)
+         && ctx->Extensions.ARB_texture_multisample
+         ? 1 : 0;
    case GL_TEXTURE_EXTERNAL_OES:
       /* fall-through */
    default:
@@ -1020,6 +1057,8 @@ _mesa_get_texture_dimensions(GLenum target)
    case GL_TEXTURE_1D_ARRAY:
    case GL_PROXY_TEXTURE_1D_ARRAY:
    case GL_TEXTURE_EXTERNAL_OES:
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
       return 2;
    case GL_TEXTURE_3D:
    case GL_PROXY_TEXTURE_3D:
@@ -1027,6 +1066,8 @@ _mesa_get_texture_dimensions(GLenum target)
    case GL_PROXY_TEXTURE_2D_ARRAY:
    case GL_TEXTURE_CUBE_MAP_ARRAY:
    case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
       return 3;
    case GL_TEXTURE_BUFFER:
       /* fall-through */
@@ -1068,6 +1109,8 @@ _mesa_get_tex_max_num_levels(GLenum target, GLsizei width, GLsizei height,
       break;
    case GL_TEXTURE_RECTANGLE:
    case GL_TEXTURE_EXTERNAL_OES:
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
       return 1;
    default:
       assert(0);
@@ -1153,6 +1196,8 @@ clear_teximage_fields(struct gl_texture_image *img)
    img->HeightLog2 = 0;
    img->DepthLog2 = 0;
    img->TexFormat = MESA_FORMAT_NONE;
+   img->NumSamples = 0;
+   img->FixedSampleLocations = GL_TRUE;
 }
 
 
@@ -1196,6 +1241,9 @@ _mesa_init_teximage_fields(struct gl_context *ctx,
    img->Width2 = width - 2 * border;   /* == 1 << img->WidthLog2; */
    img->WidthLog2 = _mesa_logbase2(img->Width2);
 
+   img->NumSamples = 0;
+   img->FixedSampleLocations = GL_TRUE;
+
    switch(target) {
    case GL_TEXTURE_1D:
    case GL_TEXTURE_BUFFER:
@@ -1234,6 +1282,8 @@ _mesa_init_teximage_fields(struct gl_context *ctx,
    case GL_PROXY_TEXTURE_2D:
    case GL_PROXY_TEXTURE_RECTANGLE:
    case GL_PROXY_TEXTURE_CUBE_MAP:
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
       img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
       img->HeightLog2 = _mesa_logbase2(img->Height2);
       if (depth == 0)
@@ -1246,6 +1296,8 @@ _mesa_init_teximage_fields(struct gl_context *ctx,
    case GL_PROXY_TEXTURE_2D_ARRAY:
    case GL_TEXTURE_CUBE_MAP_ARRAY:
    case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
       img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
       img->HeightLog2 = _mesa_logbase2(img->Height2);
       img->Depth2 = depth; /* no border */
@@ -1317,6 +1369,8 @@ _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
 
    case GL_TEXTURE_2D:
    case GL_PROXY_TEXTURE_2D:
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
       maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
       maxSize >>= level;
       if (width < 2 * border || width > 2 * border + maxSize)
@@ -1399,6 +1453,8 @@ _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
 
    case GL_TEXTURE_2D_ARRAY_EXT:
    case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
       maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
       maxSize >>= level;
       if (width < 2 * border || width > 2 * border + maxSize)
@@ -4102,3 +4158,183 @@ _mesa_TexBufferRange(GLenum target, GLenum internalFormat, GLuint buffer,
 
    texbufferrange(ctx, target, internalFormat, bufObj, offset, size);
 }
+
+static GLboolean
+is_renderable_texture_format(struct gl_context *ctx, GLenum internalformat)
+{
+   /* Everything that is allowed for renderbuffers,
+    * except for a base format of GL_STENCIL_INDEX.
+    */
+   GLenum baseFormat = _mesa_base_fbo_format(ctx, internalformat);
+   return baseFormat != 0 && baseFormat != GL_STENCIL_INDEX;
+}
+
+/** GL_ARB_texture_multisample */
+static GLboolean
+check_multisample_target(GLuint dims, GLenum target)
+{
+   switch(target) {
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+      return dims == 2;
+
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      return dims == 3;
+
+   default:
+      return GL_FALSE;
+   }
+}
+
+static void
+teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
+                    GLint internalformat, GLsizei width, GLsizei height,
+                    GLsizei depth, GLboolean fixedsamplelocations)
+{
+   struct gl_texture_object *texObj;
+   struct gl_texture_image *texImage;
+   GLboolean sizeOK, dimensionsOK;
+   gl_format texFormat;
+
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (!(ctx->Extensions.ARB_texture_multisample
+      && _mesa_is_desktop_gl(ctx))) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glTexImage%uDMultisample", dims);
+      return;
+   }
+
+   if (!check_multisample_target(dims, target)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uDMultisample(target)", dims);
+      return;
+   }
+
+   /* check that the specified internalformat is color/depth/stencil-renderable;
+    * refer GL3.1 spec 4.4.4
+    */
+
+   if (!is_renderable_texture_format(ctx, internalformat)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+            "glTexImage%uDMultisample(internalformat=%s)",
+            dims,
+            _mesa_lookup_enum_by_nr(internalformat));
+      return;
+   }
+
+   if (_mesa_is_enum_format_integer(internalformat)) {
+      if (samples > ctx->Const.MaxIntegerSamples) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+               "glTexImage%uDMultisample(samples>GL_MAX_INTEGER_SAMPLES)",
+               dims);
+         return;
+      }
+   }
+   else if (_mesa_is_depth_or_stencil_format(internalformat)) {
+      if (samples > ctx->Const.MaxDepthTextureSamples) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+               "glTexImage%uDMultisample(samples>GL_MAX_DEPTH_TEXTURE_SAMPLES)",
+               dims);
+         return;
+      }
+   }
+   else {
+      if (samples > ctx->Const.MaxColorTextureSamples) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+               "glTexImage%uDMultisample(samples>GL_MAX_COLOR_TEXTURE_SAMPLES)",
+               dims);
+         return;
+      }
+   }
+
+   /* TODO: should ask the driver for the exact limit for this internalformat
+    * once IDR's internalformat_query bits land
+    */
+
+   texObj = _mesa_get_current_tex_object(ctx, target);
+   texImage = _mesa_get_tex_image(ctx, texObj, 0, 0);
+
+   if (texImage == NULL) {
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uDMultisample()", dims);
+      return;
+   }
+
+   texFormat = _mesa_choose_texture_format(ctx, texObj, target, 0,
+         internalformat, GL_NONE, GL_NONE);
+   assert(texFormat != MESA_FORMAT_NONE);
+
+   dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, 0,
+         width, height, depth, 0);
+
+   sizeOK = ctx->Driver.TestProxyTexImage(ctx, target, 0, texFormat,
+         width, height, depth, 0);
+
+   if (_mesa_is_proxy_texture(target)) {
+      if (dimensionsOK && sizeOK) {
+         _mesa_init_teximage_fields(ctx, texImage,
+               width, height, depth, 0, internalformat, texFormat);
+         texImage->NumSamples = samples;
+         texImage->FixedSampleLocations = fixedsamplelocations;
+      }
+      else {
+         /* clear all image fields */
+         _mesa_init_teximage_fields(ctx, texImage,
+               0, 0, 0, 0, GL_NONE, MESA_FORMAT_NONE);
+      }
+   }
+   else {
+      if (!dimensionsOK) {
+         _mesa_error(ctx, GL_INVALID_VALUE,
+               "glTexImage%uDMultisample(invalid width or height)", dims);
+         return;
+      }
+
+      if (!sizeOK) {
+         _mesa_error(ctx, GL_OUT_OF_MEMORY,
+               "glTexImage%uDMultisample(texture too large)", dims);
+         return;
+      }
+
+      ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
+
+      _mesa_init_teximage_fields(ctx, texImage,
+            width, height, depth, 0, internalformat, texFormat);
+
+      texImage->NumSamples = samples;
+      texImage->FixedSampleLocations = fixedsamplelocations;
+
+      if (width > 0 && height > 0 && depth > 0) {
+
+         if (!ctx->Driver.AllocTextureStorage(ctx, texObj, 1,
+                  width, height, depth)) {
+            /* tidy up the texture image state. strictly speaking,
+             * we're allowed to just leave this in whatever state we
+             * like, but being tidy is good.
+             */
+            _mesa_init_teximage_fields(ctx, texImage,
+                  0, 0, 0, 0, GL_NONE, MESA_FORMAT_NONE);
+         }
+      }
+
+      _mesa_update_fbo_texture(ctx, texObj, 0, 0);
+   }
+}
+
+void GLAPIENTRY
+_mesa_TexImage2DMultisample(GLenum target, GLsizei samples,
+                            GLint internalformat, GLsizei width,
+                            GLsizei height, GLboolean fixedsamplelocations)
+{
+   teximagemultisample(2, target, samples, internalformat,
+         width, height, 1, fixedsamplelocations);
+}
+
+void GLAPIENTRY
+_mesa_TexImage3DMultisample(GLenum target, GLsizei samples,
+                            GLint internalformat, GLsizei width,
+                            GLsizei height, GLsizei depth,
+                            GLboolean fixedsamplelocations)
+{
+   teximagemultisample(3, target, samples, internalformat,
+         width, height, depth, fixedsamplelocations);
+}
diff --git a/mesalib/src/mesa/main/teximage.h b/mesalib/src/mesa/main/teximage.h
index 7124cac52..744c47a8a 100644
--- a/mesalib/src/mesa/main/teximage.h
+++ b/mesalib/src/mesa/main/teximage.h
@@ -294,6 +294,17 @@ _mesa_TexBufferRange(GLenum target, GLenum internalFormat, GLuint buffer,
                      GLintptr offset, GLsizeiptr size);
 
 
+extern void GLAPIENTRY
+_mesa_TexImage2DMultisample(GLenum target, GLsizei samples,
+                            GLint internalformat, GLsizei width,
+                            GLsizei height, GLboolean fixedsamplelocations);
+
+extern void GLAPIENTRY
+_mesa_TexImage3DMultisample(GLenum target, GLsizei samples,
+                            GLint internalformat, GLsizei width,
+                            GLsizei height, GLsizei depth,
+                            GLboolean fixedsamplelocations);
+
 /*@}*/
 
 #ifdef __cplusplus
diff --git a/mesalib/src/mesa/main/texobj.c b/mesalib/src/mesa/main/texobj.c
index e99b0dc38..66377c8c0 100644
--- a/mesalib/src/mesa/main/texobj.c
+++ b/mesalib/src/mesa/main/texobj.c
@@ -109,7 +109,9 @@ _mesa_initialize_texture_object( struct gl_texture_object *obj,
           target == GL_TEXTURE_2D_ARRAY_EXT ||
           target == GL_TEXTURE_EXTERNAL_OES ||
           target == GL_TEXTURE_CUBE_MAP_ARRAY ||
-          target == GL_TEXTURE_BUFFER);
+          target == GL_TEXTURE_BUFFER ||
+          target == GL_TEXTURE_2D_MULTISAMPLE ||
+          target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
 
    memset(obj, 0, sizeof(*obj));
    /* init the non-zero fields */
@@ -166,23 +168,39 @@ static void
 finish_texture_init(struct gl_context *ctx, GLenum target,
                     struct gl_texture_object *obj)
 {
+   GLenum filter = GL_LINEAR;
    assert(obj->Target == 0);
 
-   if (target == GL_TEXTURE_RECTANGLE_NV ||
-       target == GL_TEXTURE_EXTERNAL_OES) {
-      /* have to init wrap and filter state here - kind of klunky */
-      obj->Sampler.WrapS = GL_CLAMP_TO_EDGE;
-      obj->Sampler.WrapT = GL_CLAMP_TO_EDGE;
-      obj->Sampler.WrapR = GL_CLAMP_TO_EDGE;
-      obj->Sampler.MinFilter = GL_LINEAR;
-      if (ctx->Driver.TexParameter) {
-         static const GLfloat fparam_wrap[1] = {(GLfloat) GL_CLAMP_TO_EDGE};
-         static const GLfloat fparam_filter[1] = {(GLfloat) GL_LINEAR};
-         ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_S, fparam_wrap);
-         ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_T, fparam_wrap);
-         ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_R, fparam_wrap);
-         ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_MIN_FILTER, fparam_filter);
-      }
+   switch (target) {
+      case GL_TEXTURE_2D_MULTISAMPLE:
+      case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+         filter = GL_NEAREST;
+         /* fallthrough */
+
+      case GL_TEXTURE_RECTANGLE_NV:
+      case GL_TEXTURE_EXTERNAL_OES:
+         /* have to init wrap and filter state here - kind of klunky */
+         obj->Sampler.WrapS = GL_CLAMP_TO_EDGE;
+         obj->Sampler.WrapT = GL_CLAMP_TO_EDGE;
+         obj->Sampler.WrapR = GL_CLAMP_TO_EDGE;
+         obj->Sampler.MinFilter = filter;
+         obj->Sampler.MagFilter = filter;
+         if (ctx->Driver.TexParameter) {
+            static const GLfloat fparam_wrap[1] = {(GLfloat) GL_CLAMP_TO_EDGE};
+            const GLfloat fparam_filter[1] = {(GLfloat) filter};
+            ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_S, fparam_wrap);
+            ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_T, fparam_wrap);
+            ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_R, fparam_wrap);
+            ctx->Driver.TexParameter(ctx, target, obj,
+                  GL_TEXTURE_MIN_FILTER, fparam_filter);
+            ctx->Driver.TexParameter(ctx, target, obj,
+                  GL_TEXTURE_MAG_FILTER, fparam_filter);
+         }
+         break;
+
+      default:
+         /* nothing needs done */
+         break;
    }
 }
 
@@ -318,6 +336,8 @@ valid_texture_object(const struct gl_texture_object *tex)
    case GL_TEXTURE_BUFFER:
    case GL_TEXTURE_EXTERNAL_OES:
    case GL_TEXTURE_CUBE_MAP_ARRAY:
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
       return GL_TRUE;
    case 0x99:
       _mesa_problem(NULL, "invalid reference to a deleted texture object");
@@ -517,6 +537,8 @@ _mesa_test_texobj_completeness( const struct gl_context *ctx,
    case GL_TEXTURE_RECTANGLE_NV:
    case GL_TEXTURE_BUFFER:
    case GL_TEXTURE_EXTERNAL_OES:
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
       maxLevels = 1;  /* no mipmapping */
       break;
    default:
@@ -585,7 +607,9 @@ _mesa_test_texobj_completeness( const struct gl_context *ctx,
       height = baseImage->Height2;
       depth = baseImage->Depth2;
 
-      /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL textures */
+      /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL,
+       * MULTISAMPLE and MULTISAMPLE_ARRAY textures
+       */
       for (i = baseLevel + 1; i < maxLevels; i++) {
          /* Compute the expected size of image at level[i] */
          if (width > 1) {
@@ -763,7 +787,7 @@ _mesa_get_fallback_texture(struct gl_context *ctx, gl_texture_index tex)
          dims = 0;
          target = GL_TEXTURE_BUFFER;
          break;
-     case TEXTURE_CUBE_ARRAY_INDEX:
+      case TEXTURE_CUBE_ARRAY_INDEX:
          dims = 3;
          target = GL_TEXTURE_CUBE_MAP_ARRAY;
          break;
@@ -771,6 +795,14 @@ _mesa_get_fallback_texture(struct gl_context *ctx, gl_texture_index tex)
          dims = 2;
          target = GL_TEXTURE_EXTERNAL_OES;
          break;
+      case TEXTURE_2D_MULTISAMPLE_INDEX:
+         dims = 2;
+         target = GL_TEXTURE_2D_MULTISAMPLE;
+         break;
+      case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX:
+         dims = 3;
+         target = GL_TEXTURE_2D_MULTISAMPLE_ARRAY;
+         break;
       default:
          /* no-op */
          return NULL;
@@ -960,6 +992,9 @@ _mesa_GenTextures( GLsizei n, GLuint *textures )
    GLuint first;
    GLint i;
 
+   if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glGenTextures %d\n", n);
+
    if (n < 0) {
       _mesa_error( ctx, GL_INVALID_VALUE, "glGenTextures" );
       return;
@@ -1069,6 +1104,9 @@ _mesa_DeleteTextures( GLsizei n, const GLuint *textures)
    GET_CURRENT_CONTEXT(ctx);
    GLint i;
 
+   if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glDeleteTextures %d\n", n);
+
    FLUSH_VERTICES(ctx, 0); /* too complex */
 
    if (!textures)
@@ -1156,6 +1194,12 @@ target_enum_to_index(struct gl_context *ctx, GLenum target)
          ? TEXTURE_EXTERNAL_INDEX : -1;
    case GL_TEXTURE_CUBE_MAP_ARRAY:
       return TEXTURE_CUBE_ARRAY_INDEX;
+   case GL_TEXTURE_2D_MULTISAMPLE:
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
+         ? TEXTURE_2D_MULTISAMPLE_INDEX: -1;
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
+         ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX: -1;
    default:
       return -1;
    }
@@ -1290,6 +1334,9 @@ _mesa_PrioritizeTextures( GLsizei n, const GLuint *texName,
    GET_CURRENT_CONTEXT(ctx);
    GLint i;
 
+   if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glPrioritizeTextures %d\n", n);
+
    FLUSH_VERTICES(ctx, 0);
 
    if (n < 0) {
@@ -1334,6 +1381,9 @@ _mesa_AreTexturesResident(GLsizei n, const GLuint *texName,
    GLint i;
    ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
 
+   if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glAreTexturesResident %d\n", n);
+
    if (n < 0) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident(n)");
       return GL_FALSE;
@@ -1379,6 +1429,9 @@ _mesa_IsTexture( GLuint texture )
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
 
+   if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glIsTexture %d\n", texture);
+
    if (!texture)
       return GL_FALSE;
 
@@ -1428,6 +1481,9 @@ _mesa_InvalidateTexSubImage(GLuint texture, GLint level, GLint xoffset,
    struct gl_texture_image *image;
    GET_CURRENT_CONTEXT(ctx);
 
+   if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glInvalidateTexSubImage %d\n", texture);
+
    t = invalidate_tex_image_error_check(ctx, texture, level,
                                         "glInvalidateTexSubImage");
 
@@ -1494,6 +1550,7 @@ _mesa_InvalidateTexSubImage(GLuint texture, GLint level, GLint xoffset,
          break;
       case GL_TEXTURE_2D_ARRAY:
       case GL_TEXTURE_CUBE_MAP_ARRAY:
+      case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
          xBorder = image->Border;
          yBorder = image->Border;
          zBorder = 0;
@@ -1566,6 +1623,9 @@ _mesa_InvalidateTexImage(GLuint texture, GLint level)
 {
    GET_CURRENT_CONTEXT(ctx);
 
+   if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glInvalidateTexImage(%d, %d)\n", texture, level);
+
    invalidate_tex_image_error_check(ctx, texture, level,
                                     "glInvalidateTexImage");
 
diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c
index bc66bb36d..120845b4a 100644
--- a/mesalib/src/mesa/main/texparam.c
+++ b/mesalib/src/mesa/main/texparam.c
@@ -966,6 +966,9 @@ legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target)
        * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
        */
       return ctx->API == API_OPENGL_CORE && ctx->Version >= 31;
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      return ctx->Extensions.ARB_texture_multisample;
    default:
       return GL_FALSE;
    }
@@ -1105,6 +1108,19 @@ get_tex_level_parameter_image(struct gl_context *ctx,
 	    *params = GL_NONE;
          break;
 
+      /* GL_ARB_texture_multisample */
+      case GL_TEXTURE_SAMPLES:
+         if (!ctx->Extensions.ARB_texture_multisample)
+            goto invalid_pname;
+         *params = img->NumSamples;
+         break;
+
+      case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
+         if (!ctx->Extensions.ARB_texture_multisample)
+            goto invalid_pname;
+         *params = img->FixedSampleLocations;
+         break;
+
       default:
          goto invalid_pname;
    }
diff --git a/mesalib/src/mesa/main/texstate.c b/mesalib/src/mesa/main/texstate.c
index 9e591d3b9..1bd9f911f 100644
--- a/mesalib/src/mesa/main/texstate.c
+++ b/mesalib/src/mesa/main/texstate.c
@@ -707,6 +707,8 @@ alloc_proxy_textures( struct gl_context *ctx )
     * values!
     */
    static const GLenum targets[] = {
+      GL_TEXTURE_2D_MULTISAMPLE,
+      GL_TEXTURE_2D_MULTISAMPLE_ARRAY,
       GL_TEXTURE_CUBE_MAP_ARRAY,
       GL_TEXTURE_BUFFER,
       GL_TEXTURE_2D_ARRAY_EXT,
diff --git a/mesalib/src/mesa/main/version.c b/mesalib/src/mesa/main/version.c
index 281d652a5..c5b44b7c1 100644
--- a/mesalib/src/mesa/main/version.c
+++ b/mesalib/src/mesa/main/version.c
@@ -50,6 +50,45 @@ check_for_ending(const char *string, const char *ending)
 }
 
 /**
+ * Returns the gl override data
+ *
+ * version > 0 indicates there is an override requested
+ * fwd_context is only valid if version > 0
+ */
+static void
+get_gl_override(int *version, GLboolean *fwd_context)
+{
+   const char *env_var = "MESA_GL_VERSION_OVERRIDE";
+   const char *version_str;
+   int major, minor, n;
+   static int override_version = -1;
+   static GLboolean fc_suffix = GL_FALSE;
+
+   if (override_version < 0) {
+      override_version = 0;
+
+      version_str = getenv(env_var);
+      if (version_str) {
+         fc_suffix = check_for_ending(version_str, "FC");
+
+         n = sscanf(version_str, "%u.%u", &major, &minor);
+         if (n != 2) {
+            fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version_str);
+            override_version = 0;
+         } else {
+            override_version = major * 10 + minor;
+            if (override_version < 30 && fc_suffix) {
+               fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version_str);
+            }
+         }
+      }
+   }
+
+   *version = override_version;
+   *fwd_context = fc_suffix;
+}
+
+/**
  * Builds the MESA version string.
  */
 static void
@@ -87,41 +126,42 @@ create_version_string(struct gl_context *ctx, const char *prefix)
 void
 _mesa_override_gl_version(struct gl_context *ctx)
 {
-   const char *env_var = "MESA_GL_VERSION_OVERRIDE";
-   const char *version;
-   int n;
-   int major, minor;
-   GLboolean fc_suffix;
+   int version;
+   GLboolean fwd_context;
 
-   version = getenv(env_var);
-   if (!version) {
-      return;
-   }
+   get_gl_override(&version, &fwd_context);
 
-   fc_suffix = check_for_ending(version, "FC");
-
-   n = sscanf(version, "%u.%u", &major, &minor);
-   if (n != 2) {
-      fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version);
-   } else {
-      ctx->Version = major * 10 + minor;
-      if (ctx->Version < 30 && fc_suffix) {
-         fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version);
+   if (version > 0) {
+      ctx->Version = version;
+      if (version >= 30 && fwd_context) {
+         ctx->API = API_OPENGL_CORE;
+         ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
+      } else if (version >= 31) {
+         ctx->API = API_OPENGL_CORE;
       } else {
-         if (ctx->Version >= 30 && fc_suffix) {
-            ctx->API = API_OPENGL_CORE;
-            ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
-         } else if (ctx->Version >= 31) {
-            ctx->API = API_OPENGL_CORE;
-         } else {
-            ctx->API = API_OPENGL_COMPAT;
-         }
-         create_version_string(ctx, "");
+         ctx->API = API_OPENGL_COMPAT;
       }
+      create_version_string(ctx, "");
    }
 }
 
 /**
+ * Returns the gl override value
+ *
+ * version > 0 indicates there is an override requested
+ */
+int
+_mesa_get_gl_version_override(void)
+{
+   int version;
+   GLboolean fwd_context;
+
+   get_gl_override(&version, &fwd_context);
+
+   return version;
+}
+
+/**
  * Override the context's GLSL version if the environment variable
  * MESA_GLSL_VERSION_OVERRIDE is set. Valid values for
  * MESA_GLSL_VERSION_OVERRIDE are integers, such as "130".
diff --git a/mesalib/src/mesa/main/version.h b/mesalib/src/mesa/main/version.h
index 8167ed051..c1cb3177d 100644
--- a/mesalib/src/mesa/main/version.h
+++ b/mesalib/src/mesa/main/version.h
@@ -51,4 +51,7 @@ _mesa_override_gl_version(struct gl_context *ctx);
 extern void
 _mesa_override_glsl_version(struct gl_context *ctx);
 
+extern int
+_mesa_get_gl_version_override(void);
+
 #endif /* VERSION_H */
diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp
index ce409eca9..486cf4639 100644
--- a/mesalib/src/mesa/program/ir_to_mesa.cpp
+++ b/mesalib/src/mesa/program/ir_to_mesa.cpp
@@ -1478,6 +1478,13 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
       assert(!"not supported");
       break;
 
+   case ir_triop_lrp:
+      /* ir_triop_lrp operands are (x, y, a) while
+       * OPCODE_LRP operands are (a, y, x) to match ARB_fragment_program.
+       */
+      emit(ir, OPCODE_LRP, result_dst, op[2], op[1], op[0]);
+      break;
+
    case ir_quadop_vector:
       /* This operation should have already been handled.
        */
@@ -2038,6 +2045,9 @@ ir_to_mesa_visitor::visit(ir_texture *ir)
       ir->lod_info.grad.dPdy->accept(this);
       dy = this->result;
       break;
+   case ir_txf_ms:
+      assert(!"Unexpected ir_txf_ms opcode");
+      break;
    }
 
    const glsl_type *sampler_type = ir->sampler->type;
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 63b74285a..c41b5833e 100644
--- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -1942,6 +1942,10 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
       }
       break;
    }
+   case ir_triop_lrp:
+      /* note: we have to reorder the three args here */
+      emit(ir, TGSI_OPCODE_LRP, result_dst, op[2], op[1], op[0]);
+      break;
    case ir_unop_pack_snorm_2x16:
    case ir_unop_pack_unorm_2x16:
    case ir_unop_pack_half_2x16:
@@ -2742,6 +2746,9 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
 	 offset = this->result;
       }
       break;
+   case ir_txf_ms:
+      assert(!"Unexpected ir_txf_ms opcode");
+      break;
    }
 
    if (ir->projector) {