From 2ecad38adbeaa652daaab8f2a6d112921b7e74eb Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Thu, 4 Jul 2013 13:38:47 +0200
Subject: fontconfig mesa libxcb git update 4 jul 2013

libxcb           commit 8b6bb1a71977116d382f45eef803aedd3e313d37
libxcb/xcb-proto commit e6a246e50e62cbcba33d0e1d2371e69e6e089383
fontconfig       commit d420e1df983871ab18b0f07976596fdf0ce78847
mesa             commit bbd1e60198548a12be3405fc32dd39a87e8968ab
---
 mesalib/src/glsl/link_varyings.cpp | 67 ++++++++++++++++++--------------------
 1 file changed, 32 insertions(+), 35 deletions(-)

(limited to 'mesalib/src/glsl/link_varyings.cpp')

diff --git a/mesalib/src/glsl/link_varyings.cpp b/mesalib/src/glsl/link_varyings.cpp
index 4fdbdc199..51cbdaa0e 100644
--- a/mesalib/src/glsl/link_varyings.cpp
+++ b/mesalib/src/glsl/link_varyings.cpp
@@ -1113,16 +1113,12 @@ assign_varying_locations(struct gl_context *ctx,
       }
    }
 
-   unsigned varying_vectors = 0;
-
    if (consumer) {
       foreach_list(node, consumer->ir) {
          ir_variable *const var = ((ir_instruction *) node)->as_variable();
 
-         if ((var == NULL) || (var->mode != ir_var_shader_in))
-            continue;
-
-         if (var->is_unmatched_generic_inout) {
+         if (var && var->mode == ir_var_shader_in &&
+             var->is_unmatched_generic_inout) {
             if (prog->Version <= 120) {
                /* On page 25 (page 31 of the PDF) of the GLSL 1.20 spec:
                 *
@@ -1148,45 +1144,46 @@ assign_varying_locations(struct gl_context *ctx,
              * value is written by the previous stage.
              */
             var->mode = ir_var_auto;
-         } else if (is_varying_var(consumer->Type, var)) {
-            /* The packing rules are used for vertex shader inputs are also
-             * used for fragment shader inputs.
-             */
-            varying_vectors += count_attribute_slots(var->type);
          }
       }
    }
 
+   return true;
+}
+
+bool
+check_against_varying_limit(struct gl_context *ctx,
+                            struct gl_shader_program *prog,
+                            gl_shader *consumer)
+{
+   unsigned varying_vectors = 0;
+
+   foreach_list(node, consumer->ir) {
+      ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+      if (var && var->mode == ir_var_shader_in &&
+          is_varying_var(consumer->Type, var)) {
+         /* The packing rules 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->IsES) {
       if (varying_vectors > ctx->Const.MaxVarying) {
-         if (ctx->Const.GLSLSkipStrictMaxVaryingLimitCheck) {
-            linker_warning(prog, "shader uses too many varying vectors "
-                           "(%u > %u), but the driver will try to optimize "
-                           "them out; this is non-portable out-of-spec "
-                           "behavior\n",
-                           varying_vectors, ctx->Const.MaxVarying);
-         } else {
-            linker_error(prog, "shader uses too many varying vectors "
-                         "(%u > %u)\n",
-                         varying_vectors, ctx->Const.MaxVarying);
-            return false;
-         }
+         linker_error(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) {
-         if (ctx->Const.GLSLSkipStrictMaxVaryingLimitCheck) {
-            linker_warning(prog, "shader uses too many varying components "
-                           "(%u > %u), but the driver will try to optimize "
-                           "them out; this is non-portable out-of-spec "
-                           "behavior\n",
-                           float_components, ctx->Const.MaxVarying * 4);
-         } else {
-            linker_error(prog, "shader uses too many varying components "
-                         "(%u > %u)\n",
-                         float_components, ctx->Const.MaxVarying * 4);
-            return false;
-         }
+         linker_error(prog, "shader uses too many varying components "
+                      "(%u > %u)\n",
+                      float_components, ctx->Const.MaxVarying * 4);
+         return false;
       }
    }
 
-- 
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