John Reck 17035b0211 Have destroy call freePrefetchedLayers
Bug: 17208461

 There's a potential race condition between HardwareRenderer.destroy()
 being called (which calls destroyCanvasAndSurface()) and the renderer
 being finalized (which is what calls freePrefetchedLayers), during which
 time it's possible we get a TRIM_MEMORY_COMPLETE and destroy the EGL
 context.

 Fix this race condition by moving stopDrawing() and freePrefetchedLayers()
 into destroyCanvasAndSurface() where they should have been in the first
 place.

 Also, if we hit the assertion failure, dump the current state of
 Caches to try and provide more context for the failure.

Change-Id: Ife0ba3562041e8b08e87e3e13640472b3004eed6
2014-09-03 11:13:53 -07:00

130 lines
3.6 KiB
C++

/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CANVASCONTEXT_H_
#define CANVASCONTEXT_H_
#include <set>
#include <cutils/compiler.h>
#include <EGL/egl.h>
#include <SkBitmap.h>
#include <utils/Functor.h>
#include <utils/Vector.h>
#include "../DamageAccumulator.h"
#include "../DrawProfiler.h"
#include "../IContextFactory.h"
#include "../RenderNode.h"
#include "RenderTask.h"
#include "RenderThread.h"
#define FUNCTOR_PROCESS_DELAY 4
namespace android {
namespace uirenderer {
class AnimationContext;
class DeferredLayerUpdater;
class OpenGLRenderer;
class Rect;
class Layer;
namespace renderthread {
class EglManager;
// This per-renderer class manages the bridge between the global EGL context
// and the render surface.
// TODO: Rename to Renderer or some other per-window, top-level manager
class CanvasContext : public IFrameCallback {
public:
CanvasContext(RenderThread& thread, bool translucent, RenderNode* rootRenderNode,
IContextFactory* contextFactory);
virtual ~CanvasContext();
bool initialize(ANativeWindow* window);
void updateSurface(ANativeWindow* window);
void pauseSurface(ANativeWindow* window);
void setup(int width, int height, const Vector3& lightCenter, float lightRadius,
uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha);
void setOpaque(bool opaque);
void makeCurrent();
void processLayerUpdate(DeferredLayerUpdater* layerUpdater);
void prepareTree(TreeInfo& info);
void draw();
void destroy();
// IFrameCallback, Chroreographer-driven frame callback entry point
virtual void doFrame();
void buildLayer(RenderNode* node);
bool copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap);
void markLayerInUse(RenderNode* node);
void destroyHardwareResources();
static void trimMemory(RenderThread& thread, int level);
static void invokeFunctor(RenderThread& thread, Functor* functor);
void runWithGlContext(RenderTask* task);
Layer* createRenderLayer(int width, int height);
Layer* createTextureLayer();
ANDROID_API static void setTextureAtlas(RenderThread& thread,
const sp<GraphicBuffer>& buffer, int64_t* map, size_t mapSize);
void stopDrawing();
void notifyFramePending();
DrawProfiler& profiler() { return mProfiler; }
private:
friend class RegisterFrameCallbackTask;
void setSurface(ANativeWindow* window);
void swapBuffers();
void requireSurface();
void requireGlContext();
void freePrefetechedLayers();
RenderThread& mRenderThread;
EglManager& mEglManager;
sp<ANativeWindow> mNativeWindow;
EGLSurface mEglSurface;
bool mDirtyRegionsEnabled;
bool mOpaque;
OpenGLRenderer* mCanvas;
bool mHaveNewSurface;
DamageAccumulator mDamageAccumulator;
AnimationContext* mAnimationContext;
const sp<RenderNode> mRootRenderNode;
DrawProfiler mProfiler;
std::set<RenderNode*> mPrefetechedLayers;
};
} /* namespace renderthread */
} /* namespace uirenderer */
} /* namespace android */
#endif /* CANVASCONTEXT_H_ */