Initial work to get ETC1 data up to the GPU

include/gpu/GrContext.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrContext_DEFINED
 #define GrContext_DEFINED
 
@@ skipping 186 matching lines @@
 
     /**
      * Creates a new entry, based on the specified key and texture and returns it. The caller owns a
      * ref on the returned texture which must be balanced by a call to unref.
      *
      * @param params    The texture params used to draw a texture may help determine
      *                  the cache entry used. (e.g. different versions may exist
      *                  for different wrap modes on GPUs with limited NPOT
      *                  texture support). NULL implies clamp wrap modes.
      * @param desc      Description of the texture properties.
-     * @param cacheID Cache-specific properties (e.g., texture gen ID)
+     * @param cacheID   Cache-specific properties (e.g., texture gen ID)
      * @param srcData   Pointer to the pixel values.
      * @param rowBytes  The number of bytes between rows of the texture. Zero
-     *                  implies tightly packed rows.
+     *                  implies tightly packed rows. For compressed pixel configs, this
+     *                  field is ignored.
      * @param cacheKey  (optional) If non-NULL, we'll write the cache key we used to cacheKey.
      */
     GrTexture* createTexture(const GrTextureParams* params,
                              const GrTextureDesc& desc,
                              const GrCacheID& cacheID,
                              const void* srcData,
                              size_t rowBytes,
                              GrResourceKey* cacheKey = NULL);
-
     /**
      * Search for an entry based on key and dimensions. If found, ref it and return it. The return
      * value will be NULL if not found. The caller must balance with a call to unref.
      *
      *  @param desc     Description of the texture properties.
      *  @param cacheID Cache-specific properties (e.g., texture gen ID)
      *  @param params   The texture params used to draw a texture may help determine
      *                  the cache entry used. (e.g. different versions may exist
      *                  for different wrap modes on GPUs with limited NPOT
      *                  texture support). NULL implies clamp wrap modes.
@@ skipping 893 matching lines @@
     }
 
     GrTexture* texture() { return fTexture; }
 
 private:
     GrContext*                    fContext;
     GrTexture*                    fTexture;
 };
 
 #endif