Convert SkGpuDevice::drawTextureAdjuster to SkGpuDevice::drawTextureProducer

src/gpu/GrImageIDTextureAdjuster.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrImageIDTextureAdjuster.h"
 
+#include "GrContext.h"
+#include "GrGpuResourcePriv.h"
 #include "SkBitmap.h"
 #include "SkGrPriv.h"
 #include "SkImage_Base.h"
-
+#include "SkPixelRef.h"
 
 GrBitmapTextureAdjuster::GrBitmapTextureAdjuster(const SkBitmap* bmp)
     : INHERITED(bmp->getTexture(), SkIRect::MakeWH(bmp->width(), bmp->height()))
     , fBmp(bmp) {}
 
 void GrBitmapTextureAdjuster::makeCopyKey(const CopyParams& params, GrUniqueKey* copyKey) {
     if (fBmp->isVolatile()) {
         return;
     }
     // The content area must represent the whole bitmap. Texture-backed bitmaps don't support
@@ skipping 21 matching lines @@
     // image's width and height for the key's rectangle.
     GrUniqueKey baseKey;
     GrMakeKeyFromImageID(&baseKey, fImageBase->uniqueID(),
                          SkIRect::MakeWH(fImageBase->width(), fImageBase->height()));
     MakeCopyKeyFromOrigKey(baseKey, params, copyKey);
 }
 
 void GrImageTextureAdjuster::didCacheCopy(const GrUniqueKey& copyKey) {
     // We don't currently have a mechanism for notifications on Images!
 }
+
+//////////////////////////////////////////////////////////////////////////////
+
+GrBitmapTextureMaker::GrBitmapTextureMaker(GrContext* context, const SkBitmap& bitmap)
+    : INHERITED(context, bitmap.width(), bitmap.height())
+    , fBitmap(bitmap) {
+    SkASSERT(!bitmap.getTexture());
+    if (!bitmap.isVolatile()) {
+        SkIPoint origin = bitmap.pixelRefOrigin();
+        SkIRect subset = SkIRect::MakeXYWH(origin.fX, origin.fY, bitmap.width(),
+                                           bitmap.height());
+        GrMakeKeyFromImageID(&fOriginalKey, bitmap.pixelRef()->getGenerationID(), subset);
+    }
+}
+
+GrTexture* GrBitmapTextureMaker::refOriginalTexture() {
+    GrTexture* tex;
+
+    if (fOriginalKey.isValid()) {
+        tex = this->context()->textureProvider()->findAndRefTextureByUniqueKey(fOriginalKey);
+        if (tex) {
+            return tex;
+        }
+    }
+
+    tex = GrUploadBitmapToTexture(this->context(), fBitmap);
+    if (tex && fOriginalKey.isValid()) {
+        tex->resourcePriv().setUniqueKey(fOriginalKey);
+        GrInstallBitmapUniqueKeyInvalidator(fOriginalKey, fBitmap.pixelRef());
+    }
+    return tex;
+}
+
+void GrBitmapTextureMaker::makeCopyKey(const CopyParams& copyParams, GrUniqueKey* copyKey) {
+    if (fOriginalKey.isValid()) {
+        MakeCopyKeyFromOrigKey(fOriginalKey, copyParams, copyKey);
+    }
+}
+
+void GrBitmapTextureMaker::didCacheCopy(const GrUniqueKey& copyKey) {
+    GrInstallBitmapUniqueKeyInvalidator(copyKey, fBitmap.pixelRef());
+}