Merge remote-tracking branch 'origin/released'

* origin/released:
  fontconfig mesa xkeyboard-config git update 5 feb 2013

13 files changed, 132 insertions, 160 deletions

diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast.c b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
index 8e3851f88..e6e001cf5 100755
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast.c
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
@@ -368,6 +368,7 @@ swrast_new_renderbuffer(const struct gl_config *visual, __DRIdrawable *dPriv,
 	xrb->bpp = 8;
 	break;
     default:
+	free(xrb);
 	return NULL;
     }
 
diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c
index c9638a1af..04435e0c9 100644
--- a/mesalib/src/mesa/main/extensions.c
+++ b/mesalib/src/mesa/main/extensions.c
@@ -298,7 +298,7 @@ static const struct extension extension_table[] = {
    { "GL_ATI_texture_float",                       o(ARB_texture_float),                       GL,             2002 },
    { "GL_ATI_texture_mirror_once",                 o(ATI_texture_mirror_once),                 GL,             2006 },
    { "GL_IBM_multimode_draw_arrays",               o(dummy_true),                              GL,             1998 },
-   { "GL_IBM_rasterpos_clip",                      o(dummy_true),                              GL,             1996 },
+   { "GL_IBM_rasterpos_clip",                      o(dummy_true),                              GLL,            1996 },
    { "GL_IBM_texture_mirrored_repeat",             o(dummy_true),                              GLL,            1998 },
    { "GL_INGR_blend_func_separate",                o(EXT_blend_func_separate),                 GLL,            1999 },
    { "GL_MESA_pack_invert",                        o(MESA_pack_invert),                        GL,             2002 },
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index f03e84ad8..ff3c92c5e 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -3004,8 +3004,18 @@ teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims,
    texObj = _mesa_get_current_tex_object(ctx, target);
    assert(texObj);
 
-   texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
-                                           internalFormat, format, type);
+   if (compressed) {
+      /* For glCompressedTexImage() the driver has no choice about the
+       * texture format since we'll never transcode the user's compressed
+       * image data.  The internalFormat was error checked earlier.
+       */
+      texFormat = _mesa_glenum_to_compressed_format(internalFormat);
+   }
+   else {
+      texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
+                                              internalFormat, format, type);
+   }
+
    assert(texFormat != MESA_FORMAT_NONE);
 
    /* check that width, height, depth are legal for the mipmap level */
diff --git a/mesalib/src/mesa/main/uniform_query.cpp b/mesalib/src/mesa/main/uniform_query.cpp
index dc550bc43..b8335fe6b 100644
--- a/mesalib/src/mesa/main/uniform_query.cpp
+++ b/mesalib/src/mesa/main/uniform_query.cpp
@@ -929,6 +929,7 @@ _mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg,
    _mesa_propagate_uniforms_to_driver_storage(uni, offset, count);
 }
 
+
 /**
  * Called via glGetUniformLocation().
  *
@@ -944,73 +945,35 @@ _mesa_get_uniform_location(struct gl_context *ctx,
                            const GLchar *name,
                            unsigned *out_offset)
 {
-   const size_t len = strlen(name);
-   long offset;
-   bool array_lookup;
-   char *name_copy;
-
-   /* If the name ends with a ']', assume that it refers to some element of an
-    * array.  Malformed array references will fail the hash table look up
-    * below, so it doesn't matter that they are not caught here.  This code
-    * only wants to catch the "leaf" array references so that arrays of
-    * structures containing arrays will be handled correctly.
+   /* Page 80 (page 94 of the PDF) of the OpenGL 2.1 spec says:
+    *
+    *     "The first element of a uniform array is identified using the
+    *     name of the uniform array appended with "[0]". Except if the last
+    *     part of the string name indicates a uniform array, then the
+    *     location of the first element of that array can be retrieved by
+    *     either using the name of the uniform array, or the name of the
+    *     uniform array appended with "[0]"."
+    *
+    * Note: since uniform names are not allowed to use whitespace, and array
+    * indices within uniform names are not allowed to use "+", "-", or leading
+    * zeros, it follows that each uniform has a unique name up to the possible
+    * ambiguity with "[0]" noted above.  Therefore we don't need to worry
+    * about mal-formed inputs--they will properly fail when we try to look up
+    * the uniform name in shProg->UniformHash.
     */
-   if (name[len-1] == ']') {
-      unsigned i;
-
-      /* Walk backwards over the string looking for a non-digit character.
-       * This had better be the opening bracket for an array index.
-       *
-       * Initially, i specifies the location of the ']'.  Since the string may
-       * contain only the ']' charcater, walk backwards very carefully.
-       */
-      for (i = len - 1; (i > 0) && isdigit(name[i-1]); --i)
-	 /* empty */ ;
-
-      /* Page 80 (page 94 of the PDF) of the OpenGL 2.1 spec says:
-       *
-       *     "The first element of a uniform array is identified using the
-       *     name of the uniform array appended with "[0]". Except if the last
-       *     part of the string name indicates a uniform array, then the
-       *     location of the first element of that array can be retrieved by
-       *     either using the name of the uniform array, or the name of the
-       *     uniform array appended with "[0]"."
-       *
-       * Page 79 (page 93 of the PDF) of the OpenGL 2.1 spec says:
-       *
-       *     "name must be a null terminated string, without white space."
-       *
-       * Return an error if there is no opening '[' to match the closing ']'.
-       * An error will also be returned if there is intervening white space
-       * (or other non-digit characters) before the opening '['.
-       */
-      if ((i == 0) || name[i-1] != '[')
-	 return GL_INVALID_INDEX;
 
-      /* Return an error if there are no digits between the opening '[' to
-       * match the closing ']'.
-       */
-      if (i == (len - 1))
-	 return GL_INVALID_INDEX;
-
-      /* Make a new string that is a copy of the old string up to (but not
-       * including) the '[' character.
-       */
-      name_copy = (char *) malloc(i);
-      memcpy(name_copy, name, i - 1);
-      name_copy[i-1] = '\0';
-
-      offset = strtol(&name[i], NULL, 10);
-      if (offset < 0) {
-	 free(name_copy);
-	 return GL_INVALID_INDEX;
-      }
+   const GLchar *base_name_end;
+   long offset = parse_program_resource_name(name, &base_name_end);
+   bool array_lookup = offset >= 0;
+   char *name_copy;
 
-      array_lookup = true;
+   if (array_lookup) {
+      name_copy = (char *) malloc(base_name_end - name + 1);
+      memcpy(name_copy, name, base_name_end - name);
+      name_copy[base_name_end - name] = '\0';
    } else {
       name_copy = (char *) name;
       offset = 0;
-      array_lookup = false;
    }
 
    unsigned location = 0;
diff --git a/mesalib/src/mesa/main/uniforms.h b/mesalib/src/mesa/main/uniforms.h
index f17503121..a12ad9b36 100644
--- a/mesalib/src/mesa/main/uniforms.h
+++ b/mesalib/src/mesa/main/uniforms.h
@@ -167,6 +167,10 @@ _mesa_GetActiveUniformsiv(GLuint program,
 void GLAPIENTRY
 _mesa_GetUniformiv(GLhandleARB, GLint, GLint *);
 
+long
+_mesa_parse_program_resource_name(const GLchar *name,
+                                  const GLchar **out_base_name_end);
+
 unsigned
 _mesa_get_uniform_location(struct gl_context *ctx, struct gl_shader_program *shProg,
 			   const GLchar *name, unsigned *offset);
diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp
index cd89171da..ce409eca9 100644
--- a/mesalib/src/mesa/program/ir_to_mesa.cpp
+++ b/mesalib/src/mesa/program/ir_to_mesa.cpp
@@ -2375,7 +2375,7 @@ print_program(struct prog_instruction *mesa_instructions,
    }
 }
 
-class add_uniform_to_shader : public uniform_field_visitor {
+class add_uniform_to_shader : public program_resource_visitor {
 public:
    add_uniform_to_shader(struct gl_shader_program *shader_program,
 			 struct gl_program_parameter_list *params)
@@ -2387,7 +2387,7 @@ public:
    void process(ir_variable *var)
    {
       this->idx = -1;
-      this->uniform_field_visitor::process(var);
+      this->program_resource_visitor::process(var);
 
       var->location = this->idx;
    }
diff --git a/mesalib/src/mesa/state_tracker/st_atom_texture.c b/mesalib/src/mesa/state_tracker/st_atom_texture.c
index 4b43b2a7d..28327bc14 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_texture.c
@@ -214,7 +214,7 @@ update_single_texture(struct st_context *st,
    const struct gl_sampler_object *samp;
    struct gl_texture_object *texObj;
    struct st_texture_object *stObj;
-   enum pipe_format st_view_format;
+   enum pipe_format view_format;
    GLboolean retval;
 
    samp = _mesa_get_samplerobj(ctx, texUnit);
@@ -234,32 +234,11 @@ update_single_texture(struct st_context *st,
    }
 
    /* Determine the format of the texture sampler view */
-   st_view_format = stObj->pt->format;
-
-   {
-      gl_format texFormat;
-      enum pipe_format firstImageFormat;
-
-      if (texObj->Target == GL_TEXTURE_BUFFER) {
-         texFormat = stObj->base._BufferObjectFormat;
-      } else {
-         const struct st_texture_image *firstImage =
-            st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]);
-         texFormat = firstImage->base.TexFormat;
-      }
-      firstImageFormat = st_mesa_format_to_pipe_format(texFormat);
-      if ((samp->sRGBDecode == GL_SKIP_DECODE_EXT) &&
-	  (_mesa_get_format_color_encoding(texFormat) == GL_SRGB)) {
-         /* Don't do sRGB->RGB conversion.  Interpret the texture data as
-          * linear values.
-          */
-	 const gl_format linearFormat =
-	    _mesa_get_srgb_format_linear(texFormat);
-	 firstImageFormat = st_mesa_format_to_pipe_format(linearFormat);
-      }
+   view_format = stObj->pt->format;
 
-      if (firstImageFormat != stObj->pt->format)
-	 st_view_format = firstImageFormat;
+   /* If sRGB decoding is off, use the linear format */
+   if (samp->sRGBDecode == GL_SKIP_DECODE_EXT) {
+      view_format = util_format_linear(view_format);
    }
 
    /* if sampler view has changed dereference it */
@@ -267,7 +246,7 @@ update_single_texture(struct st_context *st,
       if (check_sampler_swizzle(stObj->sampler_view,
 				stObj->base._Swizzle,
 				stObj->base.DepthMode) ||
-	  (st_view_format != stObj->sampler_view->format) ||
+	  (view_format != stObj->sampler_view->format) ||
 	  stObj->base.BaseLevel != stObj->sampler_view->u.tex.first_level) {
 	 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
       }
@@ -275,7 +254,7 @@ update_single_texture(struct st_context *st,
 
    *sampler_view = st_get_texture_sampler_view_from_stobj(stObj, pipe,
 							  samp,
-							  st_view_format);
+							  view_format);
    return GL_TRUE;
 }
 
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
index c944b81f6..26d1923b5 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -489,12 +489,14 @@ make_texture(struct st_context *st,
    intFormat = internal_format(ctx, format, type);
    baseInternalFormat = _mesa_base_tex_format(ctx, intFormat);
 
-   mformat = st_ChooseTextureFormat_renderable(ctx, intFormat,
-                                               format, type, GL_FALSE);
-   assert(mformat);
-
-   pipeFormat = st_mesa_format_to_pipe_format(mformat);
-   assert(pipeFormat);
+   /* Choose a pixel format for the temp texture which will hold the
+    * image to draw.
+    */
+   pipeFormat = st_choose_format(pipe->screen, intFormat, format, type,
+                                 PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW,
+                                 FALSE);
+   assert(pipeFormat != PIPE_FORMAT_NONE);
+   mformat = st_pipe_format_to_mesa_format(pipeFormat);
 
    pixels = _mesa_map_pbo_source(ctx, unpack, pixels);
    if (!pixels)
@@ -1462,8 +1464,8 @@ st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
       driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
 
       if (st->pixel_xfer.pixelmap_enabled) {
-	  sv[1] = st->pixel_xfer.pixelmap_sampler_view;
-	  num_sampler_view++;
+         sv[1] = st->pixel_xfer.pixelmap_sampler_view;
+         num_sampler_view++;
       }
    }
    else {
@@ -1499,14 +1501,16 @@ st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
       if (type == GL_DEPTH) {
          texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
                                       GL_NONE, GL_NONE, st->internal_target,
-				      sample_count, PIPE_BIND_DEPTH_STENCIL);
+                                      sample_count, PIPE_BIND_DEPTH_STENCIL,
+                                      FALSE);
          assert(texFormat != PIPE_FORMAT_NONE);
       }
       else {
          /* default color format */
          texFormat = st_choose_format(screen, GL_RGBA,
                                       GL_NONE, GL_NONE, st->internal_target,
-                                      sample_count, PIPE_BIND_SAMPLER_VIEW);
+                                      sample_count, PIPE_BIND_SAMPLER_VIEW,
+                                      FALSE);
          assert(texFormat != PIPE_FORMAT_NONE);
       }
    }
diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c
index 3cea2df07..80a440d18 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c
@@ -597,7 +597,7 @@ decompress_with_blit(struct gl_context * ctx,
 
    /* Find the best match for the format+type combo. */
    pipe_format = st_choose_format(pipe->screen, GL_RGBA8, format, type,
-                                  pipe_target, 0, bind);
+                                  pipe_target, 0, bind, FALSE);
    if (pipe_format == PIPE_FORMAT_NONE) {
       /* unable to get an rgba format!?! */
       _mesa_problem(ctx, "%s: cannot find a supported format", __func__);
diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c
index 7ef063953..2169bed89 100644
--- a/mesalib/src/mesa/state_tracker/st_format.c
+++ b/mesalib/src/mesa/state_tracker/st_format.c
@@ -1398,18 +1398,25 @@ static const struct format_mapping format_map[] = {
 
 /**
  * Return first supported format from the given list.
+ * \param allow_dxt  indicates whether it's OK to return a DXT format.
  */
 static enum pipe_format
 find_supported_format(struct pipe_screen *screen,
                       const enum pipe_format formats[],
                       enum pipe_texture_target target,
                       unsigned sample_count,
-                      unsigned tex_usage)
+                      unsigned tex_usage,
+                      boolean allow_dxt)
 {
    uint i;
    for (i = 0; formats[i]; i++) {
       if (screen->is_format_supported(screen, formats[i], target,
                                       sample_count, tex_usage)) {
+         if (!allow_dxt && util_format_is_s3tc(formats[i])) {
+            /* we can't return a dxt format, continue searching */
+            continue;
+         }
+
          return formats[i];
       }
    }
@@ -1514,12 +1521,16 @@ find_exact_format(GLint internalFormat, GLenum format, GLenum type)
  * \param internalFormat  the user value passed to glTexImage2D
  * \param target  one of PIPE_TEXTURE_x
  * \param bindings  bitmask of PIPE_BIND_x flags.
+ * \param allow_dxt  indicates whether it's OK to return a DXT format.  This
+ *                   only matters when internalFormat names a generic or
+ *                   specific compressed format.  And that should only happen
+ *                   when we're getting called from gl[Copy]TexImage().
  */
 enum pipe_format
 st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
                  GLenum format, GLenum type,
                  enum pipe_texture_target target, unsigned sample_count,
-                 unsigned bindings)
+                 unsigned bindings, boolean allow_dxt)
 {
    GET_CURRENT_CONTEXT(ctx); /* XXX this should be a function parameter */
    int i, j;
@@ -1547,7 +1558,8 @@ st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
              * which is supported by the driver.
              */
             return find_supported_format(screen, mapping->pipeFormats,
-                                         target, sample_count, bindings);
+                                         target, sample_count, bindings,
+                                         allow_dxt);
          }
       }
    }
@@ -1569,27 +1581,42 @@ st_choose_renderbuffer_format(struct pipe_screen *screen,
       usage = PIPE_BIND_DEPTH_STENCIL;
    else
       usage = PIPE_BIND_RENDER_TARGET;
-   return st_choose_format(screen, internalFormat, GL_NONE, GL_NONE, PIPE_TEXTURE_2D,
-                           sample_count, usage);
+   return st_choose_format(screen, internalFormat, GL_NONE, GL_NONE,
+                           PIPE_TEXTURE_2D, sample_count, usage, FALSE);
 }
 
 
+/**
+ * Called via ctx->Driver.ChooseTextureFormat().
+ */
 gl_format
-st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
-				  GLenum format, GLenum type, GLboolean renderable)
+st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
+                       GLint internalFormat,
+                       GLenum format, GLenum type)
 {
+   const boolean want_renderable =
+      internalFormat == 3 || internalFormat == 4 ||
+      internalFormat == GL_RGB || internalFormat == GL_RGBA ||
+      internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
+      internalFormat == GL_BGRA;
    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
    enum pipe_format pFormat;
-   uint bindings;
+   unsigned bindings;
 
-   (void) format;
-   (void) type;
+   if (target == GL_TEXTURE_1D || target == GL_TEXTURE_1D_ARRAY) {
+      /* We don't do compression for these texture targets because of
+       * difficulty with sub-texture updates on non-block boundaries, etc.
+       * So change the internal format request to an uncompressed format.
+       */
+      internalFormat =
+        _mesa_generic_compressed_format_to_uncompressed_format(internalFormat);
+   }
 
    /* GL textures may wind up being render targets, but we don't know
     * that in advance.  Specify potential render target flags now.
     */
    bindings = PIPE_BIND_SAMPLER_VIEW;
-   if (renderable) {
+   if (want_renderable) {
       if (_mesa_is_depth_or_stencil_format(internalFormat))
 	 bindings |= PIPE_BIND_DEPTH_STENCIL;
       else
@@ -1597,12 +1624,13 @@ st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
    }
 
    pFormat = st_choose_format(screen, internalFormat, format, type,
-                              PIPE_TEXTURE_2D, 0, bindings);
+                              PIPE_TEXTURE_2D, 0, bindings, ctx->Mesa_DXTn);
 
    if (pFormat == PIPE_FORMAT_NONE) {
       /* try choosing format again, this time without render target bindings */
       pFormat = st_choose_format(screen, internalFormat, format, type,
-                                 PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
+                                 PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW,
+                                 ctx->Mesa_DXTn);
    }
 
    if (pFormat == PIPE_FORMAT_NONE) {
@@ -1617,34 +1645,6 @@ st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
 /**
  * Called via ctx->Driver.ChooseTextureFormat().
  */
-gl_format
-st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
-                       GLint internalFormat,
-                       GLenum format, GLenum type)
-{
-   boolean want_renderable =
-      internalFormat == 3 || internalFormat == 4 ||
-      internalFormat == GL_RGB || internalFormat == GL_RGBA ||
-      internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
-      internalFormat == GL_BGRA;
-
-   if (target == GL_TEXTURE_1D || target == GL_TEXTURE_1D_ARRAY) {
-      /* We don't do compression for these texture targets because of
-       * difficulty with sub-texture updates on non-block boundaries, etc.
-       * So change the internal format request to an uncompressed format.
-       */
-      internalFormat =
-        _mesa_generic_compressed_format_to_uncompressed_format(internalFormat);
-   }
-
-   return st_ChooseTextureFormat_renderable(ctx, internalFormat,
-					    format, type, want_renderable);
-}
-
-
-/**
- * Called via ctx->Driver.ChooseTextureFormat().
- */
 size_t
 st_QuerySamplesForFormat(struct gl_context *ctx, GLenum internalFormat,
                          int samples[16])
@@ -1661,7 +1661,7 @@ st_QuerySamplesForFormat(struct gl_context *ctx, GLenum internalFormat,
    /* Set sample counts in descending order. */
    for (i = 16; i > 1; i--) {
       format = st_choose_format(screen, internalFormat, GL_NONE, GL_NONE,
-                                PIPE_TEXTURE_2D, i, bind);
+                                PIPE_TEXTURE_2D, i, bind, FALSE);
 
       if (format != PIPE_FORMAT_NONE) {
          samples[num_sample_counts++] = i;
diff --git a/mesalib/src/mesa/state_tracker/st_format.h b/mesalib/src/mesa/state_tracker/st_format.h
index cb6e5bc96..50588d8d4 100644
--- a/mesalib/src/mesa/state_tracker/st_format.h
+++ b/mesalib/src/mesa/state_tracker/st_format.h
@@ -51,17 +51,13 @@ extern enum pipe_format
 st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
                  GLenum format, GLenum type,
                  enum pipe_texture_target target, unsigned sample_count,
-                 unsigned bindings);
+                 unsigned bindings, boolean allow_dxt);
 
 extern enum pipe_format
 st_choose_renderbuffer_format(struct pipe_screen *screen,
                               GLenum internalFormat, unsigned sample_count);
 
 
-gl_format
-st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
-				  GLenum format, GLenum type, GLboolean renderable);
-
 extern gl_format
 st_ChooseTextureFormat(struct gl_context * ctx, GLenum target,
                        GLint internalFormat,
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 c6ac634a2..b3da2016d 100644
--- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -322,6 +322,7 @@ public:
    
    int glsl_version;
    bool native_integers;
+   bool have_sqrt;
 
    variable_storage *find_variable_storage(ir_variable *var);
 
@@ -1761,13 +1762,18 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
       break;
 
    case ir_unop_sqrt:
-      /* sqrt(x) = x * rsq(x). */
-      emit_scalar(ir, TGSI_OPCODE_RSQ, result_dst, op[0]);
-      emit(ir, TGSI_OPCODE_MUL, result_dst, result_src, op[0]);
-      /* For incoming channels <= 0, set the result to 0. */
-      op[0].negate = ~op[0].negate;
-      emit(ir, TGSI_OPCODE_CMP, result_dst,
-        		  op[0], result_src, st_src_reg_for_float(0.0));
+      if (have_sqrt) {
+         emit_scalar(ir, TGSI_OPCODE_SQRT, result_dst, op[0]);
+      }
+      else {
+         /* sqrt(x) = x * rsq(x). */
+         emit_scalar(ir, TGSI_OPCODE_RSQ, result_dst, op[0]);
+         emit(ir, TGSI_OPCODE_MUL, result_dst, result_src, op[0]);
+         /* For incoming channels <= 0, set the result to 0. */
+         op[0].negate = ~op[0].negate;
+         emit(ir, TGSI_OPCODE_CMP, result_dst,
+              op[0], result_src, st_src_reg_for_float(0.0));
+      }
       break;
    case ir_unop_rsq:
       emit_scalar(ir, TGSI_OPCODE_RSQ, result_dst, op[0]);
@@ -4956,18 +4962,23 @@ get_mesa_program(struct gl_context *ctx,
    bool progress;
    struct gl_shader_compiler_options *options =
          &ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(shader->Type)];
+   struct pipe_screen *pscreen = ctx->st->pipe->screen;
+   unsigned ptarget;
 
    switch (shader->Type) {
    case GL_VERTEX_SHADER:
       target = GL_VERTEX_PROGRAM_ARB;
+      ptarget = PIPE_SHADER_VERTEX;
       target_string = "vertex";
       break;
    case GL_FRAGMENT_SHADER:
       target = GL_FRAGMENT_PROGRAM_ARB;
+      ptarget = PIPE_SHADER_FRAGMENT;
       target_string = "fragment";
       break;
    case GL_GEOMETRY_SHADER:
       target = GL_GEOMETRY_PROGRAM_NV;
+      ptarget = PIPE_SHADER_GEOMETRY;
       target_string = "geometry";
       break;
    default:
@@ -4989,6 +5000,9 @@ get_mesa_program(struct gl_context *ctx,
    v->glsl_version = ctx->Const.GLSLVersion;
    v->native_integers = ctx->Const.NativeIntegers;
 
+   v->have_sqrt = pscreen->get_shader_param(pscreen, ptarget,
+                                            PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED);
+
    _mesa_generate_parameters_list_for_uniforms(shader_program, shader,
 					       prog->Parameters);
 
diff --git a/mesalib/src/mesa/state_tracker/st_texture.c b/mesalib/src/mesa/state_tracker/st_texture.c
index ee4d7622d..584eaa981 100644
--- a/mesalib/src/mesa/state_tracker/st_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_texture.c
@@ -398,7 +398,8 @@ st_create_color_map_texture(struct gl_context *ctx)
 
    /* find an RGBA texture format */
    format = st_choose_format(pipe->screen, GL_RGBA, GL_NONE, GL_NONE,
-                             PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
+                             PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW,
+                             FALSE);
 
    /* create texture for color map/table */
    pt = st_texture_create(st, PIPE_TEXTURE_2D, format, 0,