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/*
* Copyright (C) 2010 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.
*/
#define LOG_TAG "OpenGLRenderer"
#include "ResourceCache.h"
#include "Caches.h"
namespace android {
using namespace uirenderer;
ANDROID_SINGLETON_STATIC_INSTANCE(ResourceCache);
namespace uirenderer {
///////////////////////////////////////////////////////////////////////////////
// Resource cache
///////////////////////////////////////////////////////////////////////////////
void ResourceCache::logCache() {
ALOGD("ResourceCache: cacheReport:");
for (size_t i = 0; i < mCache->size(); ++i) {
ResourceReference* ref = mCache->valueAt(i);
ALOGD(" ResourceCache: mCache(%zu): resource, ref = 0x%p, 0x%p",
i, mCache->keyAt(i), mCache->valueAt(i));
ALOGD(" ResourceCache: mCache(%zu): refCount, destroyed, type = %d, %d, %d",
i, ref->refCount, ref->destroyed, ref->resourceType);
}
}
ResourceCache::ResourceCache() {
Mutex::Autolock _l(mLock);
mCache = new KeyedVector<const void*, ResourceReference*>();
}
ResourceCache::~ResourceCache() {
Mutex::Autolock _l(mLock);
delete mCache;
}
void ResourceCache::lock() {
mLock.lock();
}
void ResourceCache::unlock() {
mLock.unlock();
}
void ResourceCache::incrementRefcount(void* resource, ResourceType resourceType) {
Mutex::Autolock _l(mLock);
incrementRefcountLocked(resource, resourceType);
}
void ResourceCache::incrementRefcount(const Res_png_9patch* patchResource) {
incrementRefcount((void*) patchResource, kNinePatch);
}
void ResourceCache::incrementRefcountLocked(void* resource, ResourceType resourceType) {
ssize_t index = mCache->indexOfKey(resource);
ResourceReference* ref = index >= 0 ? mCache->valueAt(index) : nullptr;
if (ref == nullptr || mCache->size() == 0) {
ref = new ResourceReference(resourceType);
mCache->add(resource, ref);
}
ref->refCount++;
}
void ResourceCache::decrementRefcount(void* resource) {
Mutex::Autolock _l(mLock);
decrementRefcountLocked(resource);
}
void ResourceCache::decrementRefcount(const Res_png_9patch* patchResource) {
decrementRefcount((void*) patchResource);
}
void ResourceCache::decrementRefcountLocked(void* resource) {
ssize_t index = mCache->indexOfKey(resource);
ResourceReference* ref = index >= 0 ? mCache->valueAt(index) : nullptr;
if (ref == nullptr) {
// Should not get here - shouldn't get a call to decrement if we're not yet tracking it
return;
}
ref->refCount--;
if (ref->refCount == 0) {
deleteResourceReferenceLocked(resource, ref);
}
}
void ResourceCache::decrementRefcountLocked(const Res_png_9patch* patchResource) {
decrementRefcountLocked((void*) patchResource);
}
void ResourceCache::destructor(Res_png_9patch* resource) {
Mutex::Autolock _l(mLock);
destructorLocked(resource);
}
void ResourceCache::destructorLocked(Res_png_9patch* resource) {
ssize_t index = mCache->indexOfKey(resource);
ResourceReference* ref = index >= 0 ? mCache->valueAt(index) : nullptr;
if (ref == nullptr) {
// If we're not tracking this resource, just delete it
if (Caches::hasInstance()) {
Caches::getInstance().patchCache.removeDeferred(resource);
} else {
// A Res_png_9patch is actually an array of byte that's larger
// than sizeof(Res_png_9patch). It must be freed as an array.
delete[] (int8_t*) resource;
}
return;
}
ref->destroyed = true;
if (ref->refCount == 0) {
deleteResourceReferenceLocked(resource, ref);
}
}
/**
* This method should only be called while the mLock mutex is held (that mutex is grabbed
* by the various destructor() and recycle() methods which call this method).
*/
void ResourceCache::deleteResourceReferenceLocked(const void* resource, ResourceReference* ref) {
if (ref->destroyed) {
switch (ref->resourceType) {
case kNinePatch: {
if (Caches::hasInstance()) {
Caches::getInstance().patchCache.removeDeferred((Res_png_9patch*) resource);
} else {
// A Res_png_9patch is actually an array of byte that's larger
// than sizeof(Res_png_9patch). It must be freed as an array.
int8_t* patch = (int8_t*) resource;
delete[] patch;
}
}
break;
}
}
mCache->removeItem(resource);
delete ref;
}
}; // namespace uirenderer
}; // namespace android
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