From 8a49ff701cfa50f9dcb237051e2ba7ac0302a515 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Tue, 21 Jun 2011 14:40:39 +0200
Subject: fontconfig mesa git update 21 June 2011

---
 mesalib/src/glsl/linker.cpp                        | 41 +++++++++++++++++++---
 .../src/mapi/glapi/gen/ARB_geometry_shader4.xml    |  2 +-
 mesalib/src/mesa/state_tracker/st_format.c         |  6 ++--
 3 files changed, 40 insertions(+), 9 deletions(-)

(limited to 'mesalib/src')

diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
index 255edc6a7..b6479e7a3 100644
--- a/mesalib/src/glsl/linker.cpp
+++ b/mesalib/src/glsl/linker.cpp
@@ -1405,8 +1405,9 @@ demote_shader_inputs_and_outputs(gl_shader *sh, enum ir_variable_mode mode)
 }
 
 
-void
-assign_varying_locations(struct gl_shader_program *prog,
+bool
+assign_varying_locations(struct gl_context *ctx,
+			 struct gl_shader_program *prog,
 			 gl_shader *producer, gl_shader *consumer)
 {
    /* FINISHME: Set dynamically when geometry shader support is added. */
@@ -1462,6 +1463,8 @@ assign_varying_locations(struct gl_shader_program *prog,
       }
    }
 
+   unsigned varying_vectors = 0;
+
    foreach_list(node, consumer->ir) {
       ir_variable *const var = ((ir_instruction *) node)->as_variable();
 
@@ -1492,8 +1495,32 @@ assign_varying_locations(struct gl_shader_program *prog,
 	  * value is written by the previous stage.
 	  */
 	 var->mode = ir_var_auto;
+      } else {
+	 /* The packing rules are used for vertex shader inputs are also used
+	  * for fragment shader inputs.
+	  */
+	 varying_vectors += count_attribute_slots(var->type);
       }
    }
+
+   if (ctx->API == API_OPENGLES2 || prog->Version == 100) {
+      if (varying_vectors > ctx->Const.MaxVarying) {
+	 linker_error_printf(prog, "shader uses too many varying vectors "
+			     "(%u > %u)\n",
+			     varying_vectors, ctx->Const.MaxVarying);
+	 return false;
+      }
+   } else {
+      const unsigned float_components = varying_vectors * 4;
+      if (float_components > ctx->Const.MaxVarying * 4) {
+	 linker_error_printf(prog, "shader uses too many varying components "
+			     "(%u > %u)\n",
+			     float_components, ctx->Const.MaxVarying * 4);
+	 return false;
+      }
+   }
+
+   return true;
 }
 
 
@@ -1666,9 +1693,13 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
       if (prog->_LinkedShaders[i] == NULL)
 	 continue;
 
-      assign_varying_locations(prog,
-			       prog->_LinkedShaders[prev],
-			       prog->_LinkedShaders[i]);
+      if (!assign_varying_locations(ctx, prog,
+				    prog->_LinkedShaders[prev],
+				    prog->_LinkedShaders[i])) {
+	 prog->LinkStatus = false;
+	 goto done;
+      }
+
       prev = i;
    }
 
diff --git a/mesalib/src/mapi/glapi/gen/ARB_geometry_shader4.xml b/mesalib/src/mapi/glapi/gen/ARB_geometry_shader4.xml
index ca9a101a0..d9e540fc9 100644
--- a/mesalib/src/mapi/glapi/gen/ARB_geometry_shader4.xml
+++ b/mesalib/src/mapi/glapi/gen/ARB_geometry_shader4.xml
@@ -38,7 +38,7 @@
         <param name="texture" type="GLuint"/>
         <param name="level" type="GLint"/>
     </function>
-    <function name="FramebufferTextureLayerARB" alias="FramebufferTextureLayer">
+    <function name="FramebufferTextureLayerARB" alias="FramebufferTextureLayerEXT">
         <param name="target" type="GLenum"/>
         <param name="attachment" type="GLenum"/>
         <param name="texture" type="GLuint"/>
diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c
index 45e476671..263613b2c 100644
--- a/mesalib/src/mesa/state_tracker/st_format.c
+++ b/mesalib/src/mesa/state_tracker/st_format.c
@@ -608,7 +608,7 @@ struct format_mapping
  * Multiple GL enums might map to multiple pipe_formats.
  * The first pipe format in the list that's supported is the one that's chosen.
  */
-static struct format_mapping format_map[] = {
+static const struct format_mapping format_map[] = {
    /* Basic RGB, RGBA formats */
    {
       { GL_RGB10, GL_RGB10_A2, 0 },
@@ -616,7 +616,7 @@ static struct format_mapping format_map[] = {
    },
    {
       { 4, GL_RGBA, GL_RGBA8, 0 },
-      { DEFAULT_RGBA_FORMATS, 0 }
+      { DEFAULT_RGBA_FORMATS }
    },
    {
       { GL_BGRA, 0 },
@@ -624,7 +624,7 @@ static struct format_mapping format_map[] = {
    },
    {
       { 3, GL_RGB, GL_RGB8, 0 },
-      { DEFAULT_RGB_FORMATS, 0 }
+      { DEFAULT_RGB_FORMATS }
    },
    {
       { GL_RGB12, GL_RGB16, GL_RGBA12, GL_RGBA16, 0 },
-- 
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