Revert of Rewrite GrTextureMaker to disentangle bitmap case from base class and give GPU object a say in what…

src/image/SkImage_Raster.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkImage_Base.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 155 matching lines @@
     *dst = fBitmap;
     return true;
 }
 
 GrTexture* SkImage_Raster::asTextureRef(GrContext* ctx, const GrTextureParams& params) const {
 #if SK_SUPPORT_GPU
     if (!ctx) {
         return nullptr;
     }
 
+    // textures (at least the texture-key) only support 16bit dimensions, so abort early
+    // if we're too big.
+    if (fBitmap.width() > 0xFFFF || fBitmap.height() > 0xFFFF) {
+        return nullptr;
+    }
+
+    GrUniqueKey key;
+    GrMakeKeyFromImageID(&key, fBitmap.getGenerationID(),
+                         SkIRect::MakeWH(fBitmap.width(), fBitmap.height()),
+                         *ctx->caps(), params);
+
+    if (GrTexture* tex = ctx->textureProvider()->findAndRefTextureByUniqueKey(key)) {
+        return tex;
+    }
     return GrRefCachedBitmapTexture(ctx, fBitmap, params);
 #endif
     
     return nullptr;
 }
 
 SkImage* SkImage_Raster::onNewSubset(const SkIRect& subset) const {
     // TODO : could consider heurist of sharing pixels, if subset is pretty close to complete
 
     SkImageInfo info = SkImageInfo::MakeN32(subset.width(), subset.height(), fBitmap.alphaType());
@@ skipping 99 matching lines @@
         // pixelref since the caller might call setImmutable() themselves
         // (thus changing our state).
         if (fBitmap.isImmutable()) {
             bitmap->setInfo(fBitmap.info(), fBitmap.rowBytes());
             bitmap->setPixelRef(fBitmap.pixelRef(), fBitmap.pixelRefOrigin());
             return true;
         }
     }
     return this->INHERITED::onAsLegacyBitmap(bitmap, mode);
 }