Refugee from Dead Machine 4: MDB Monster

src/effects/SkDisplacementMapEffect.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDisplacementMapEffect.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
@@ skipping 377 matching lines @@
     SkDisplacementMapEffect::ChannelSelectorType fYChannelSelector;
     SkVector fScale;
 
     typedef GrFragmentProcessor INHERITED;
 };
 
 bool SkDisplacementMapEffect::filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
                                              SkBitmap* result, SkIPoint* offset) const {
     SkBitmap colorBM = src;
     SkIPoint colorOffset = SkIPoint::Make(0, 0);
-    if (getColorInput() && !getColorInput()->getInputResultGPU(proxy, src, ctx, &colorBM,
-                                                               &colorOffset)) {
+    if (this->getColorInput() && 
+        !this->getColorInput()->getInputResultGPU(proxy, src, ctx, &colorBM, &colorOffset)) {
         return false;
     }
     SkBitmap displacementBM = src;
     SkIPoint displacementOffset = SkIPoint::Make(0, 0);
-    if (getDisplacementInput() &&
-        !getDisplacementInput()->getInputResultGPU(proxy, src, ctx, &displacementBM,
-                                                   &displacementOffset)) {
+    if (this->getDisplacementInput() &&
+        !this->getDisplacementInput()->getInputResultGPU(proxy, src, ctx, &displacementBM,
+                                                         &displacementOffset)) {
         return false;
     }
     SkIRect bounds;
     // Since GrDisplacementMapEffect does bounds checking on color pixel access, we don't need to
     // pad the color bitmap to bounds here.
     if (!this->applyCropRect(ctx, colorBM, colorOffset, &bounds)) {
         return false;
     }
     SkIRect displBounds;
     if (!this->applyCropRect(ctx, proxy, displacementBM,
@@ skipping 35 matching lines @@
                                         displacement,
                                         offsetMatrix,
                                         color,
                                         colorBM.dimensions()))->unref();
     SkIRect colorBounds = bounds;
     colorBounds.offset(-colorOffset);
     SkMatrix matrix;
     matrix.setTranslate(-SkIntToScalar(colorBounds.x()),
                         -SkIntToScalar(colorBounds.y()));
 
-    GrDrawContext* drawContext = context->drawContext();
+    GrDrawContext* drawContext = context->drawContext(dst->asRenderTarget());
     if (!drawContext) {
         return false;
     }
+    drawContext->uses(displacement);
+    drawContext->uses(color);
 
     drawContext->drawRect(dst->asRenderTarget(), GrClip::WideOpen(), paint, matrix,
                           SkRect::Make(colorBounds));
     offset->fX = bounds.left();
     offset->fY = bounds.top();
     WrapTexture(dst, bounds.width(), bounds.height(), result);
     return true;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ skipping 168 matching lines @@
                                        const GrGLSLCaps&, GrProcessorKeyBuilder* b) {
     const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMapEffect>();
 
     uint32_t xKey = displacementMap.xChannelSelector();
     uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBits;
 
     b->add32(xKey | yKey);
 }
 #endif