From d3353646c31ccb90cc43727ef0fa7869b4e4fe07 Mon Sep 17 00:00:00 2001
From: "bsalomon@google.com"
 <bsalomon@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>
Date: Mon, 22 Oct 2012 20:36:53 +0000
Subject: Revert r6330 thru 6333 while we figure out what to do about Intel
 bots (possible driver bug).

git-svn-id: http://skia.googlecode.com/svn/trunk@6037 2bbb7eff-a529-9590-31e7-b0007b416f81
---
 src/gpu/gl/GrGLShaderBuilder.cpp | 39 +--------------------------------------
 1 file changed, 1 insertion(+), 38 deletions(-)

(limited to 'src/gpu/gl/GrGLShaderBuilder.cpp')

diff --git a/src/gpu/gl/GrGLShaderBuilder.cpp b/src/gpu/gl/GrGLShaderBuilder.cpp
index 677916e89d..3ce118ccc9 100644
--- a/src/gpu/gl/GrGLShaderBuilder.cpp
+++ b/src/gpu/gl/GrGLShaderBuilder.cpp
@@ -93,15 +93,13 @@ GrGLShaderBuilder::GrGLShaderBuilder(const GrGLContextInfo& ctx, GrGLUniformMana
     , fContext(ctx)
     , fUniformManager(uniformManager)
     , fCurrentStage(kNonStageIdx)
-    , fSetupFragPosition(false)
-    , fRTHeightUniform(GrGLUniformManager::kInvalidUniformHandle)
     , fTexCoordVaryingType(kVoid_GrSLType) {
 }
 
 void GrGLShaderBuilder::setupTextureAccess(const char* varyingFSName, GrSLType varyingType) {
     // FIXME: We don't know how the custom stage will manipulate the coords. So we give up on using
     // projective texturing and always give the stage 2D coords. This will be fixed when custom
-    // stages are responsible for setting up their own tex coords / tex matrices.
+    // stages are repsonsible for setting up their own tex coords / tex matrices.
     switch (varyingType) {
         case kVec2f_GrSLType:
             fDefaultTexCoordsName = varyingFSName;
@@ -285,40 +283,6 @@ void GrGLShaderBuilder::addVarying(GrSLType type,
     }
 }
 
-const char* GrGLShaderBuilder::fragmentPosition() {
-    if (fContext.caps().fragCoordConventionsSupport()) {
-        if (!fSetupFragPosition) {
-            fFSHeader.printf("#extension GL_ARB_fragment_coord_conventions: enable\n");
-            fFSHeader.append("layout(origin_upper_left) in vec4 gl_FragCoord;\n");
-            fSetupFragPosition = true;
-        }
-        return "gl_FragCoord";        
-    } else {
-        static const char* kCoordName = "fragCoordYDown";
-        if (!fSetupFragPosition) {
-            GrAssert(GrGLUniformManager::kInvalidUniformHandle == fRTHeightUniform);
-            const char* rtHeightName;
-        
-            // temporarily change the stage index because we're inserting a uniform whose name
-            // shouldn't be mangled to be stage-specific.
-            int oldStageIdx = fCurrentStage;
-            fCurrentStage = kNonStageIdx;
-            fRTHeightUniform = this->addUniform(kFragment_ShaderType,
-                                                kFloat_GrSLType,
-                                                "RTHeight",
-                                                &rtHeightName);
-            fCurrentStage = oldStageIdx;
-        
-            this->fFSCode.prependf("\tvec4 %s = vec4(gl_FragCoord.x, %s - gl_FragCoord.y, gl_FragCoord.zw);\n",
-                                   kCoordName, rtHeightName);
-            fSetupFragPosition = true;
-        }
-        GrAssert(GrGLUniformManager::kInvalidUniformHandle != fRTHeightUniform);
-        return kCoordName;
-    }
-}
-
-
 void GrGLShaderBuilder::emitFunction(ShaderType shader,
                                      GrSLType returnType,
                                      const char* name,
@@ -417,7 +381,6 @@ void GrGLShaderBuilder::getShader(ShaderType type, SkString* shaderStr) const {
             append_default_precision_qualifier(kDefaultFragmentPrecision,
                                                fContext.binding(),
                                                shaderStr);
-            shaderStr->append(fFSHeader);
             this->appendUniformDecls(kFragment_ShaderType, shaderStr);
             this->appendDecls(fFSInputs, shaderStr);
             // We shouldn't have declared outputs on 1.10
-- 
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