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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 <utils/threads.h>
#include "PathCache.h"
#include "Properties.h"
namespace android {
namespace uirenderer {
///////////////////////////////////////////////////////////////////////////////
// Path cache
///////////////////////////////////////////////////////////////////////////////
PathCache::PathCache(): ShapeCache<PathCacheEntry>("path",
PROPERTY_PATH_CACHE_SIZE, DEFAULT_PATH_CACHE_SIZE) {
}
void PathCache::remove(SkPath* path) {
// TODO: Linear search...
Vector<uint32_t> pathsToRemove;
for (uint32_t i = 0; i < mCache.size(); i++) {
if (mCache.getKeyAt(i).path == path) {
pathsToRemove.push(i);
removeTexture(mCache.getValueAt(i));
}
}
mCache.setOnEntryRemovedListener(NULL);
for (size_t i = 0; i < pathsToRemove.size(); i++) {
// This will work because pathsToRemove is sorted
// and because the cache is a sorted keyed vector
mCache.removeAt(pathsToRemove.itemAt(i) - i);
}
mCache.setOnEntryRemovedListener(this);
}
void PathCache::removeDeferred(SkPath* path) {
Mutex::Autolock _l(mLock);
mGarbage.push(path);
}
void PathCache::clearGarbage() {
Mutex::Autolock _l(mLock);
size_t count = mGarbage.size();
for (size_t i = 0; i < count; i++) {
remove(mGarbage.itemAt(i));
}
mGarbage.clear();
}
PathTexture* PathCache::get(SkPath* path, SkPaint* paint) {
PathCacheEntry entry(path, paint);
PathTexture* texture = mCache.get(entry);
if (!texture) {
texture = addTexture(entry, path, paint);
} else if (path->getGenerationID() != texture->generation) {
mCache.remove(entry);
texture = addTexture(entry, path, paint);
}
return texture;
}
}; // namespace uirenderer
}; // namespace android
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