Refugee from Dead Machine 4: MDB Monster

src/effects/SkXfermodeImageFilter.cpp

Index: src/effects/SkXfermodeImageFilter.cpp
diff --git a/src/effects/SkXfermodeImageFilter.cpp b/src/effects/SkXfermodeImageFilter.cpp
index 599fd42b12d0987bfa631f47d593d04f7b6296b2..190746d01cffbf2706f4caa9a266c74cdd68c9b6 100644
--- a/src/effects/SkXfermodeImageFilter.cpp
+++ b/src/effects/SkXfermodeImageFilter.cpp
@@ -133,12 +133,12 @@ bool SkXfermodeImageFilter::filterImageGPU(Proxy* proxy,
                                            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();
 
+    GrTexture* backgroundTex = background.getTexture();
     if (NULL == backgroundTex) {
         SkASSERT(false);
         return false;
@@ -146,9 +146,9 @@ bool SkXfermodeImageFilter::filterImageGPU(Proxy* proxy,
 
     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();
@@ -191,10 +191,12 @@ bool SkXfermodeImageFilter::filterImageGPU(Proxy* proxy,
     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);