17035b0211
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
147 lines
4.0 KiB
C++
147 lines
4.0 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HWUI_LAYER_CACHE_H
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#define ANDROID_HWUI_LAYER_CACHE_H
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#include "Debug.h"
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#include "Layer.h"
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#include "utils/SortedList.h"
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namespace android {
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namespace uirenderer {
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class RenderState;
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///////////////////////////////////////////////////////////////////////////////
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// Defines
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///////////////////////////////////////////////////////////////////////////////
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// Debug
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#if DEBUG_LAYERS
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#define LAYER_LOGD(...) ALOGD(__VA_ARGS__)
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#else
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#define LAYER_LOGD(...)
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#endif
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///////////////////////////////////////////////////////////////////////////////
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// Cache
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///////////////////////////////////////////////////////////////////////////////
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class LayerCache {
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public:
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LayerCache();
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~LayerCache();
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/**
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* Returns a layer large enough for the specified dimensions. If no suitable
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* layer can be found, a new one is created and returned. If creating a new
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* layer fails, NULL is returned.
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*
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* When a layer is obtained from the cache, it is removed and the total
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* size of the cache goes down.
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*
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* @param width The desired width of the layer
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* @param height The desired height of the layer
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*/
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Layer* get(RenderState& renderState, const uint32_t width, const uint32_t height);
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/**
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* Adds the layer to the cache. The layer will not be added if there is
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* not enough space available. Adding a layer can cause other layers to
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* be removed from the cache.
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*
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* @param layer The layer to add to the cache
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*
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* @return True if the layer was added, false otherwise.
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*/
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bool put(Layer* layer);
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/**
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* Clears the cache. This causes all layers to be deleted.
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*/
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void clear();
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/**
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* Sets the maximum size of the cache in bytes.
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*/
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void setMaxSize(uint32_t maxSize);
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/**
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* Returns the maximum size of the cache in bytes.
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*/
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uint32_t getMaxSize();
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/**
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* Returns the current size of the cache in bytes.
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*/
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uint32_t getSize();
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size_t getCount();
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/**
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* Prints out the content of the cache.
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*/
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void dump();
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private:
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struct LayerEntry {
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LayerEntry():
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mLayer(NULL), mWidth(0), mHeight(0) {
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}
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LayerEntry(const uint32_t layerWidth, const uint32_t layerHeight): mLayer(NULL) {
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mWidth = Layer::computeIdealWidth(layerWidth);
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mHeight = Layer::computeIdealHeight(layerHeight);
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}
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LayerEntry(Layer* layer):
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mLayer(layer), mWidth(layer->getWidth()), mHeight(layer->getHeight()) {
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}
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static int compare(const LayerEntry& lhs, const LayerEntry& rhs);
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bool operator==(const LayerEntry& other) const {
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return compare(*this, other) == 0;
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}
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bool operator!=(const LayerEntry& other) const {
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return compare(*this, other) != 0;
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}
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friend inline int strictly_order_type(const LayerEntry& lhs, const LayerEntry& rhs) {
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return LayerEntry::compare(lhs, rhs) < 0;
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}
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friend inline int compare_type(const LayerEntry& lhs, const LayerEntry& rhs) {
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return LayerEntry::compare(lhs, rhs);
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}
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Layer* mLayer;
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uint32_t mWidth;
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uint32_t mHeight;
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}; // struct LayerEntry
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void deleteLayer(Layer* layer);
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SortedList<LayerEntry> mCache;
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uint32_t mSize;
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uint32_t mMaxSize;
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}; // class LayerCache
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}; // namespace uirenderer
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}; // namespace android
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#endif // ANDROID_HWUI_LAYER_CACHE_H
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