Merge remote-tracking branch 'origin/released'

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

7 files changed, 88 insertions, 94 deletions

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,