Implement NVPR on GLES

src/gpu/gl/GrGLProgramDesc.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLProgramDesc_DEFINED
 #define GrGLProgramDesc_DEFINED
 
@@ skipping 129 matching lines @@
         uint8_t                     fDstReadKey;        // set by GrGLShaderBuilder if there
                                                         // are effects that must read the dst.
                                                         // Otherwise, 0.
         uint8_t                     fFragPosKey;        // set by GrGLShaderBuilder if there are
                                                         // effects that read the fragment position.
                                                         // Otherwise, 0.
         ColorInput                  fColorInput : 8;
         ColorInput                  fCoverageInput : 8;
         CoverageOutput              fCoverageOutput : 8;
 
-        SkBool8                     fHasVertexCode;
+        SkBool8                     fRequiresVertexShader;
         SkBool8                     fEmitsPointSize;
 
         // To enable experimental geometry shader code (not for use in
         // production)
 #if GR_GL_EXPERIMENTAL_GS
         SkBool8                     fExperimentalGS;
 #endif
 
         int8_t                      fPositionAttributeIndex;
         int8_t                      fLocalCoordAttributeIndex;
@@ skipping 35 matching lines @@
     KeyHeader* header() { return this->atOffset<KeyHeader, kHeaderOffset>(); }
 
     // Shared code between setRandom() and Build().
     static bool GetEffectKeyAndUpdateStats(const GrEffectStage& stage,
                                            const GrGLCaps& caps,
                                            bool useExplicitLocalCoords,
                                            GrEffectKeyBuilder* b,
                                            uint16_t* effectKeySize,
                                            bool* setTrueIfReadsDst,
                                            bool* setTrueIfReadsPos,
-                                           bool* setTrueIfHasVertexCode);
+                                           bool* setTrueIfRequiresVertexShader);
 
     void finalize();
 
     const KeyHeader& getHeader() const { return *this->atOffset<KeyHeader, kHeaderOffset>(); }
 
     /** Used to provide effects' keys to their emitCode() function. */
     class EffectKeyProvider {
     public:
         enum EffectType {
             kColor_EffectType,
@@ skipping 37 matching lines @@
     friend class GrGLProgram;
     friend class GrGLProgramBuilder;
     friend class GrGLFullProgramBuilder;
     friend class GrGLFragmentOnlyProgramBuilder;
     friend class GrGLVertexShaderBuilder;
     friend class GrGLFragmentShaderBuilder;
     friend class GrGLGeometryShaderBuilder;
 };
 
 #endif