pin as texture api

src/gpu/GrImageIDTextureAdjuster.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrImageIDTextureAdjuster_DEFINED
 #define GrImageIDTextureAdjuster_DEFINED
 
 #include "GrTextureParamsAdjuster.h"
 #include "SkImage.h"
 
 class SkBitmap;
 class SkImage_Base;
 class SkImageCacherator;
 
-/** Implementation for texture-backed SkImages. The image must stay in scope and unmodified while
-    this object exists. */
-class GrImageTextureAdjuster : public GrTextureAdjuster {
+/** Implementation for texture-backed SkImages. The texture/image must stay in scope and
+ *  unmodified while this object exists.
+ */
+class GrRawTextureAdjuster : public GrTextureAdjuster {
 public:
-    explicit GrImageTextureAdjuster(const SkImage_Base* img);
+    GrRawTextureAdjuster(GrTexture*, const SkISize& size, uint32_t uniqueID, SkColorSpace*);
 
 protected:
     SkColorSpace* getColorSpace() override;
 
 private:
     void makeCopyKey(const CopyParams& params, GrUniqueKey* copyKey) override;
-
     void didCacheCopy(const GrUniqueKey& copyKey) override;
 
-    const SkImage_Base* fImageBase;
+    SkColorSpace*   fColorSpace;
+    SkISize         fSize;
+    uint32_t        fUniqueID;
 
     typedef GrTextureAdjuster INHERITED;
 };
 
+class GrImageTextureAdjuster : public GrRawTextureAdjuster {

[bsalomon, 2016/08/15 19:10:39]

I wonder if we should make GrTextureAdjuster a final class now and not have any
subclasses. IIRC there used to be additional complexity with texture-backed
SkBitmaps that is now gone.

[reed1, 2016/08/16 16:41:33]

Done.

+public:
+    explicit GrImageTextureAdjuster(const SkImage_Base* img);
+};
+
 /** This class manages the conversion of SW-backed bitmaps to GrTextures. If the input bitmap is
     non-volatile the texture is cached using a key created from the pixels' image id and the
     subset of the pixelref specified by the bitmap. */
 class GrBitmapTextureMaker : public GrTextureMaker {
 public:
     GrBitmapTextureMaker(GrContext* context, const SkBitmap& bitmap);
 
 protected:
     GrTexture* refOriginalTexture(bool willBeMipped, SkSourceGammaTreatment) override;
 
@@ skipping 31 matching lines @@
 private:
     SkImageCacherator*      fCacher;
     const SkImage*          fClient;
     GrUniqueKey             fOriginalKey;
     SkImage::CachingHint    fCachingHint;
 
     typedef GrTextureMaker INHERITED;
 };
 
 #endif