5a7e828842
A recent change to optimize path rendering didn't account for the destruction of native objects by the VM finalizer. We may be done with the Java level version before we're done with the native structure that's used by the display list. For example, a drawing method on a View that creates a temporary path to render into the canvas will implicitly create a native structure that is put onto the GL display list. That temporary path may go away, but the native version should stick around as long as the display list does. The fix is to refcount the original native version of the path and only delete it when the refcoutn reaches zero (which means that it is no longer needed by any display list). This is a similar mechanism used for bitmaps and shaders. Change-Id: I4de1047415066d425d1c689aa60827f97729b470
89 lines
2.6 KiB
C++
89 lines
2.6 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_RESOURCE_CACHE_H
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#define ANDROID_HWUI_RESOURCE_CACHE_H
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#include <SkBitmap.h>
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#include <SkiaColorFilter.h>
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#include <SkiaShader.h>
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#include <utils/KeyedVector.h>
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namespace android {
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namespace uirenderer {
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/**
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* Type of Resource being cached
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*/
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enum ResourceType {
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kBitmap,
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kShader,
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kColorFilter,
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kPath,
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};
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class ResourceReference {
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public:
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ResourceReference() { refCount = 0; recycled = false; destroyed = false;}
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ResourceReference(ResourceType type) {
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refCount = 0; recycled = false; destroyed = false; resourceType = type;
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}
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int refCount;
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bool recycled;
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bool destroyed;
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ResourceType resourceType;
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};
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class ResourceCache {
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KeyedVector<void *, ResourceReference *>* mCache;
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public:
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ResourceCache();
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~ResourceCache();
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void incrementRefcount(SkPath* resource);
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void incrementRefcount(SkBitmap* resource);
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void incrementRefcount(SkiaShader* resource);
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void incrementRefcount(SkiaColorFilter* resource);
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void incrementRefcount(const void* resource, ResourceType resourceType);
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void decrementRefcount(void* resource);
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void decrementRefcount(SkBitmap* resource);
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void decrementRefcount(SkPath* resource);
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void decrementRefcount(SkiaShader* resource);
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void decrementRefcount(SkiaColorFilter* resource);
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void recycle(SkBitmap* resource);
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void destructor(SkPath* resource);
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void destructor(SkBitmap* resource);
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void destructor(SkiaShader* resource);
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void destructor(SkiaColorFilter* resource);
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private:
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void deleteResourceReference(void* resource, ResourceReference* ref);
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void incrementRefcount(void* resource, ResourceType resourceType);
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void logCache();
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/**
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* Used to increment, decrement, and destroy. Incrementing is generally accessed on the UI
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* thread, but destroying resources may be called from the GC thread, the finalizer thread,
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* or a reference queue finalization thread.
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*/
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mutable Mutex mLock;
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};
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}; // namespace uirenderer
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}; // namespace android
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#endif // ANDROID_HWUI_RESOURCE_CACHE_H
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