Implement NVPR on GLES

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"
@@ skipping 95 matching lines @@
     }
     // write the key length
     *desc->atOffset<uint32_t, kLengthOffset>() = SkToU32(newKeyLength);
 
     KeyHeader* header = desc->header();
     EffectKey* effectKeys = desc->effectKeys();
 
     int currEffectKey = 0;
     bool readsDst = false;
     bool readFragPosition = false;
-    // We use vertexshader-less shader programs only when drawing paths.
-    bool hasVertexCode = !(GrGpu::kDrawPath_DrawType == drawType ||
-                           GrGpu::kDrawPaths_DrawType == drawType);
+
+    // Provide option for shader programs without vertex shader only when drawing paths.
+    bool hasVertexCode = !GrGpu::IsPathRenderingDrawType(drawType);
 
     if (!skipColor) {
         for (int s = firstEffectiveColorStage; s < drawState.numColorStages(); ++s) {
             effectKeys[currEffectKey++] =
                 get_key_and_update_stats(drawState.getColorStage(s), gpu->glCaps(),
                                          requiresLocalCoordAttrib, &readsDst, &readFragPosition,
                                          &hasVertexCode);
         }
     }
     if (!skipCoverage) {
@@ skipping 147 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;
 }