Draft change to start pulling uniform color into GP

src/gpu/gl/GrGLProgramDesc.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "GrGLProgramDesc.h"
 
 #include "GrGLProcessor.h"
 #include "GrProcessor.h"
@@ skipping 140 matching lines @@
     key[0] = (textureKey << 16 | transformKey);
     key[1] = (classID << 16 | SkToU16(processorKeySize));
     return true;
 }
 
 bool GrGLProgramDescBuilder::Build(const GrOptDrawState& optState,
                                    const GrProgramDesc::DescInfo& descInfo,
                                    GrGpu::DrawType drawType,
                                    GrGpuGL* gpu,
                                    GrProgramDesc* desc) {
-    bool inputColorIsUsed = descInfo.fInputColorIsUsed;
-    bool inputCoverageIsUsed = descInfo.fInputCoverageIsUsed;
-
     // The descriptor is used as a cache key. Thus when a field of the
     // descriptor will not affect program generation (because of the attribute
     // bindings in use or other descriptor field settings) it should be set
     // to a canonical value to avoid duplicate programs with different keys.
 
     bool requiresLocalCoordAttrib = descInfo.fRequiresLocalCoordAttrib;
 
     GR_STATIC_ASSERT(0 == kProcessorKeysOffset % sizeof(uint32_t));
     // Make room for everything up to the effect keys.
     desc->fKey.reset();
@@ skipping 31 matching lines @@
     }
 
     // --------DO NOT MOVE HEADER ABOVE THIS LINE--------------------------------------------------
     // Because header is a pointer into the dynamic array, we can't push any new data into the key
     // below here.
     GLKeyHeader* header = desc->atOffset<GLKeyHeader, kHeaderOffset>();
 
     // make sure any padding in the header is zeroed.
     memset(header, 0, kHeaderSize);
 
-    header->fHasGeometryProcessor = optState.hasGeometryProcessor();
-
     bool isPathRendering = GrGpu::IsPathRenderingDrawType(drawType);
     if (gpu->caps()->pathRenderingSupport() && isPathRendering) {
         header->fUseNvpr = true;
         SkASSERT(!optState.hasGeometryProcessor());
     } else {
         header->fUseNvpr = false;
     }
 
-    bool hasUniformColor = inputColorIsUsed && (isPathRendering || !descInfo.fHasVertexColor);
-
-    if (!inputColorIsUsed) {
-        header->fColorInput = GrProgramDesc::kAllOnes_ColorInput;
-    } else if (hasUniformColor) {
-        header->fColorInput = GrProgramDesc::kUniform_ColorInput;
-    } else {
-        header->fColorInput = GrProgramDesc::kAttribute_ColorInput;
-        SkASSERT(!header->fUseNvpr);
-    }
-
-    bool hasVertexCoverage = !isPathRendering && descInfo.fHasVertexCoverage;
-
-    bool covIsSolidWhite = !hasVertexCoverage && 0xffffffff == optState.getCoverageColor();
-
-    if (covIsSolidWhite || !inputCoverageIsUsed) {
-        header->fCoverageInput = GrProgramDesc::kAllOnes_ColorInput;
-    } else if (!hasVertexCoverage) {
-        header->fCoverageInput = GrProgramDesc::kUniform_ColorInput;
-    } else {
-        header->fCoverageInput = GrProgramDesc::kAttribute_ColorInput;
-        SkASSERT(!header->fUseNvpr);
-    }
-
     if (descInfo.fReadsDst) {
         const GrDeviceCoordTexture* dstCopy = optState.getDstCopy();
         SkASSERT(dstCopy || gpu->caps()->dstReadInShaderSupport());
         const GrTexture* dstCopyTexture = NULL;
         if (dstCopy) {
             dstCopyTexture = dstCopy->texture();
         }
         header->fDstReadKey = GrGLFragmentShaderBuilder::KeyForDstRead(dstCopyTexture,
                                                                        gpu->glCaps());
         SkASSERT(0 != header->fDstReadKey);
     } else {
         header->fDstReadKey = 0;
     }
 
     if (descInfo.fReadsFragPosition) {
         header->fFragPosKey =
                 GrGLFragmentShaderBuilder::KeyForFragmentPosition(optState.getRenderTarget(),
                                                                   gpu->glCaps());
     } else {
         header->fFragPosKey = 0;
     }
 
     header->fColorEffectCnt = optState.numColorStages();
     header->fCoverageEffectCnt = optState.numCoverageStages();
     desc->finalize();
     return true;
 }