Refugee from Dead Machine 4: MDB Monster

src/effects/SkXfermodeImageFilter.cpp

 /*
  * Copyright 2013 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkXfermodeImageFilter.h"
 #include "SkCanvas.h"
 #include "SkDevice.h"
@@ skipping 115 matching lines @@
     return fMode && fMode->asFragmentProcessor(NULL, NULL) && !cropRectIsSet();
 }
 
 bool SkXfermodeImageFilter::filterImageGPU(Proxy* proxy,
                                            const SkBitmap& src,
                                            const Context& ctx,
                                            SkBitmap* result,
                                            SkIPoint* offset) const {
     SkBitmap background = src;
     SkIPoint backgroundOffset = SkIPoint::Make(0, 0);
-    if (getInput(0) && !getInput(0)->getInputResultGPU(proxy, src, ctx, &background,
-                                                       &backgroundOffset)) {
-        return onFilterImage(proxy, src, ctx, result, offset);
+    if (this->getInput(0) && 
+        !this->getInput(0)->getInputResultGPU(proxy, src, ctx, &background, &backgroundOffset)) {
+        return this->onFilterImage(proxy, src, ctx, result, offset);
     }
+
     GrTexture* backgroundTex = background.getTexture();
-
     if (NULL == backgroundTex) {
         SkASSERT(false);
         return false;
     }
 
     SkBitmap foreground = src;
     SkIPoint foregroundOffset = SkIPoint::Make(0, 0);
-    if (getInput(1) && !getInput(1)->getInputResultGPU(proxy, src, ctx, &foreground,
-                                                       &foregroundOffset)) {
-        return onFilterImage(proxy, src, ctx, result, offset);
+    if (this->getInput(1) && 
+        !this->getInput(1)->getInputResultGPU(proxy, src, ctx, &foreground, &foregroundOffset)) {
+        return this->onFilterImage(proxy, src, ctx, result, offset);
     }
     GrTexture* foregroundTex = foreground.getTexture();
     GrContext* context = foregroundTex->getContext();
 
     GrFragmentProcessor* xferProcessor = NULL;
 
     GrSurfaceDesc desc;
     desc.fFlags = kRenderTarget_GrSurfaceFlag;
     desc.fWidth = src.width();
     desc.fHeight = src.height();
@@ skipping 22 matching lines @@
     SkAutoTUnref<GrFragmentProcessor> foregroundDomain(GrTextureDomainEffect::Create(
         foregroundTex, foregroundMatrix,
         GrTextureDomain::MakeTexelDomain(foregroundTex, foreground.bounds()),
         GrTextureDomain::kDecal_Mode,
         GrTextureParams::kNone_FilterMode)
     );
 
     paint.addColorProcessor(foregroundDomain.get());
     paint.addColorProcessor(xferProcessor)->unref();
 
-    GrDrawContext* drawContext = context->drawContext();
+    GrDrawContext* drawContext = context->drawContext(dst->asRenderTarget());
     if (!drawContext) {
         return false;
     }
+    drawContext->uses(backgroundTex);
+    drawContext->uses(foregroundTex);
 
     drawContext->drawRect(dst->asRenderTarget(), GrClip::WideOpen(), paint, 
                           SkMatrix::I(), srcRect);
 
     offset->fX = backgroundOffset.fX;
     offset->fY = backgroundOffset.fY;
     WrapTexture(dst, src.width(), src.height(), result);
     return true;
 }
 
 #endif