Add caps overrides to GMs

include/gpu/GrCaps.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 GrCaps_DEFINED
 #define GrCaps_DEFINED
 
@@ skipping 66 matching lines @@
     };
 
     /**
     * Is there any difference between the float shader variable precision types? If this is true
     * then unless the shader type is not supported, any call to getFloatShaderPrecisionInfo() would
     * report the same info for all precisions in all shader types.
     */
     bool floatPrecisionVaries() const { return fShaderPrecisionVaries; }
 
 protected:
+    /** Subclasses must call this at the end of their constructors in order to apply caps
+        overrides requested by the client. Note that overrides will only reduce the caps never
+        expand them. */
+    void applyOptionsOverrides(const GrContextOptions& options);
+
     bool fShaderDerivativeSupport : 1;
     bool fGeometryShaderSupport : 1;
     bool fPathRenderingSupport : 1;
     bool fDstReadInShaderSupport : 1;
     bool fDualSourceBlendingSupport : 1;
     bool fMixedSamplesSupport : 1;
 
     bool fShaderPrecisionVaries;
     PrecisionInfo fFloatPrecisions[kGrShaderTypeCount][kGrSLPrecisionCount];
 
@@ skipping 90 matching lines @@
         SkASSERT(kGrPixelConfigCnt > config);
         return fConfigTextureSupport[config];
     }
 
     bool suppressPrints() const { return fSupressPrints; }
 
     bool drawPathMasksToCompressedTexturesSupport() const {
         return fDrawPathMasksToCompressedTextureSupport; }
 
 protected:
+    /** Subclasses must call this at the end of their constructors in order to apply caps
+        overrides requested by the client. Note that overrides will only reduce the caps never
+        expand them. */
+    void applyOptionsOverrides(const GrContextOptions& options);
+
     SkAutoTUnref<GrShaderCaps>    fShaderCaps;
 
     bool fNPOTTextureTileSupport        : 1;
     bool fMipMapSupport                 : 1;
     bool fTwoSidedStencilSupport        : 1;
     bool fStencilWrapOpsSupport         : 1;
     bool fDiscardRenderTargetSupport    : 1;
     bool fReuseScratchTextures          : 1;
     bool fGpuTracingSupport             : 1;
     bool fCompressedTexSubImageSupport  : 1;
@@ skipping 14 matching lines @@
     bool fConfigTextureSupport[kGrPixelConfigCnt];
 
 private:
     bool fSupressPrints : 1;
     bool fDrawPathMasksToCompressedTextureSupport : 1;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif