Make max number of vertex attributes be checked dynamically

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 191 matching lines @@
 
     uint32_t mapBufferFlags() const { return fMapBufferFlags; }
 
     // Scratch textures not being reused means that those scratch textures
     // that we upload to (i.e., don't have a render target) will not be
     // recycled in the texture cache. This is to prevent ghosting by drivers
     // (in particular for deferred architectures).
     bool reuseScratchTextures() const { return fReuseScratchTextures; }
     bool reuseScratchBuffers() const { return fReuseScratchBuffers; }
 
+    /// maximum number of attribute values per vertex
+    int maxVertexAttributes() const { return fMaxVertexAttributes; }
+
     int maxRenderTargetSize() const { return fMaxRenderTargetSize; }
     int maxTextureSize() const { return fMaxTextureSize; }
     /** This is the maximum tile size to use by GPU devices for rendering sw-backed images/bitmaps.
         It is usually the max texture size, unless we're overriding it for testing. */
     int maxTileSize() const { SkASSERT(fMaxTileSize <= fMaxTextureSize); return fMaxTileSize; }
 
     // Will be 0 if MSAA is not supported
     int maxColorSampleCount() const { return fMaxColorSampleCount; }
     // Will be 0 if MSAA is not supported
     int maxStencilSampleCount() const { return fMaxStencilSampleCount; }
@@ skipping 72 matching lines @@
     bool fPreferVRAMUseOverFlushes                   : 1;
 
     BlendEquationSupport fBlendEquationSupport;
     uint32_t fAdvBlendEqBlacklist;
     GR_STATIC_ASSERT(kLast_GrBlendEquation < 32);
 
     uint32_t fMapBufferFlags;
     int fGeometryBufferMapThreshold;
 
     int fMaxRenderTargetSize;
+    int fMaxVertexAttributes;
     int fMaxTextureSize;
     int fMaxTileSize;
     int fMaxColorSampleCount;
     int fMaxStencilSampleCount;
     int fMaxRasterSamples;
 
 private:
     virtual void onApplyOptionsOverrides(const GrContextOptions&) {};
 
     bool fSuppressPrints : 1;
     bool fImmediateFlush: 1;
     bool fDrawPathMasksToCompressedTextureSupport : 1;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif