Create swizzle table inside of glsl caps

src/gpu/gl/GrGLCaps.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLCaps_DEFINED
 #define GrGLCaps_DEFINED
@@ skipping 255 matching lines @@
     bool rgba8888PixelsOpsAreSlow() const { return fRGBA8888PixelsOpsAreSlow; }
     bool partialFBOReadIsSlow() const { return fPartialFBOReadIsSlow; }
 
     const GrGLSLCaps* glslCaps() const { return reinterpret_cast<GrGLSLCaps*>(fShaderCaps.get()); }
 
 private:
     void init(const GrContextOptions&, const GrGLContextInfo&, const GrGLInterface*);
     void initGLSL(const GrGLContextInfo&);
     bool hasPathRenderingSupport(const GrGLContextInfo&, const GrGLInterface*);
 
+    void onApplyOptionsOverrides(const GrContextOptions& options) override;
+
     /**
      * Maintains a bit per GrPixelConfig. It is used to avoid redundantly
      * performing glCheckFrameBufferStatus for the same config.
      */
     struct VerifiedColorConfigs {
         VerifiedColorConfigs() {
             this->reset();
         }
 
         void reset() {
@@ skipping 30 matching lines @@
     // This must be called after initFSAASupport().
     void initConfigRenderableTable(const GrGLContextInfo&, bool srgbSupport);
     void initConfigTexturableTable(const GrGLContextInfo&, const GrGLInterface*, bool srgbSupport);
 
     bool doReadPixelsSupported(const GrGLInterface* intf, GrGLenum format, GrGLenum type) const;
 
     void initShaderPrecisionTable(const GrGLContextInfo& ctxInfo,
                                   const GrGLInterface* intf,
                                   GrGLSLCaps* glslCaps);
 
+    void initConfigSwizzleTable(GrGLSLCaps* glslCaps);
+
     // tracks configs that have been verified to pass the FBO completeness when
     // used as a color attachment
     VerifiedColorConfigs fVerifiedColorConfigs;
 
     SkTArray<StencilFormat, true> fStencilFormats;
 
     int fMaxFragmentUniformVectors;
     int fMaxVertexAttributes;
     int fMaxFragmentTextureUnits;
 
@@ skipping 39 matching lines @@
                 && fType      == rhs.fType
                 && fFboFormat == rhs.fFboFormat;
         }
     };
     mutable SkTHashMap<ReadPixelsSupportedFormat, bool> fReadPixelsSupportedCache;
 
     typedef GrCaps INHERITED;
 };
 
 #endif