Mark when effects and programs have vertex code

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 "GrBackendEffectFactory.h"
 #include "GrDrawEffect.h"
 #include "GrEffect.h"
 #include "GrGLShaderBuilder.h"
 #include "GrGpuGL.h"
 
 #include "SkChecksum.h"
 
 namespace {
 inline GrGLEffect::EffectKey get_key_and_update_stats(const GrEffectStage& stage,
                                                       const GrGLCaps& caps,
                                                       bool useExplicitLocalCoords,
                                                       bool* setTrueIfReadsDst,
-                                                      bool* setTrueIfReadsPos) {
+                                                      bool* setTrueIfReadsPos,
+                                                      bool* setTrueIfHasVertexCode) {
     const GrEffectRef& effect = *stage.getEffect();
     const GrBackendEffectFactory& factory = effect->getFactory();
     GrDrawEffect drawEffect(stage, useExplicitLocalCoords);
     if (effect->willReadDstColor()) {
         *setTrueIfReadsDst = true;
     }
     if (effect->willReadFragmentPosition()) {
         *setTrueIfReadsPos = true;
     }
+    if (effect->hasVertexCode()) {
+        *setTrueIfHasVertexCode = true;
+    }
     return factory.glEffectKey(drawEffect, caps);
 }
 }
 void GrGLProgramDesc::Build(const GrDrawState& drawState,
                             bool isPoints,
                             GrDrawState::BlendOptFlags blendOpts,
                             GrBlendCoeff srcCoeff,
                             GrBlendCoeff dstCoeff,
                             const GrGpuGL* gpu,
                             const GrDeviceCoordTexture* dstCopy,
@@ skipping 38 matching lines @@
     }
     // write the key length
     *desc->atOffset<uint32_t, kLengthOffset>() = newKeyLength;
 
     KeyHeader* header = desc->header();
     EffectKey* effectKeys = desc->effectKeys();
 
     int currEffectKey = 0;
     bool readsDst = false;
     bool readFragPosition = false;
+    bool hasVertexCode = false;
     if (!skipColor) {
         for (int s = 0; s < drawState.numColorStages(); ++s) {
             effectKeys[currEffectKey++] =
                 get_key_and_update_stats(drawState.getColorStage(s), gpu->glCaps(),
-                                         requiresLocalCoordAttrib, &readsDst, &readFragPosition);
+                                         requiresLocalCoordAttrib, &readsDst, &readFragPosition,
+                                         &hasVertexCode);
         }
     }
     if (!skipCoverage) {
         for (int s = 0; s < drawState.numCoverageStages(); ++s) {
             effectKeys[currEffectKey++] =
                 get_key_and_update_stats(drawState.getCoverageStage(s), gpu->glCaps(),
-                                         requiresLocalCoordAttrib, &readsDst, &readFragPosition);
+                                         requiresLocalCoordAttrib, &readsDst, &readFragPosition,
+                                         &hasVertexCode);
         }
     }
 
+    header->fHasVertexCode = hasVertexCode || requiresLocalCoordAttrib;
     header->fEmitsPointSize = isPoints;
     header->fColorFilterXfermode = skipColor ? SkXfermode::kDst_Mode : drawState.getColorFilterMode();
 
     // Currently the experimental GS will only work with triangle prims (and it doesn't do anything
     // other than pass through values from the VS to the FS anyway).
 #if GR_GL_EXPERIMENTAL_GS
 #if 0
     header->fExperimentalGS = gpu->caps().geometryShaderSupport();
 #else
     header->fExperimentalGS = false;
 #endif
 #endif
     if (colorIsTransBlack) {
         header->fColorInput = kTransBlack_ColorInput;
     } else if (colorIsSolidWhite) {
         header->fColorInput = kSolidWhite_ColorInput;
     } else if (GR_GL_NO_CONSTANT_ATTRIBUTES && !requiresColorAttrib) {
         header->fColorInput = kUniform_ColorInput;
     } else {
         header->fColorInput = kAttribute_ColorInput;
+        header->fHasVertexCode = true;
     }
 
     bool covIsSolidWhite = !requiresCoverageAttrib && 0xffffffff == drawState.getCoverage();
 
     if (skipCoverage) {
         header->fCoverageInput = kTransBlack_ColorInput;
     } else if (covIsSolidWhite) {
         header->fCoverageInput = kSolidWhite_ColorInput;
     } else if (GR_GL_NO_CONSTANT_ATTRIBUTES && !requiresCoverageAttrib) {
         header->fCoverageInput = kUniform_ColorInput;
     } else {
         header->fCoverageInput = kAttribute_ColorInput;
+        header->fHasVertexCode = true;
     }
 
     if (readsDst) {
         SkASSERT(NULL != dstCopy || gpu->caps()->dstReadInShaderSupport());
         const GrTexture* dstCopyTexture = NULL;
         if (NULL != dstCopy) {
             dstCopyTexture = dstCopy->texture();
         }
         header->fDstReadKey = GrGLShaderBuilder::KeyForDstRead(dstCopyTexture, gpu->glCaps());
         SkASSERT(0 != header->fDstReadKey);
@@ skipping 105 matching lines @@
 
 GrGLProgramDesc& GrGLProgramDesc::operator= (const GrGLProgramDesc& other) {
     fInitialized = other.fInitialized;
     if (fInitialized) {
         size_t keyLength = other.keyLength();
         fKey.reset(keyLength);
         memcpy(fKey.get(), other.fKey.get(), keyLength);
     }
     return *this;
 }