1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "OpenGLRenderer" 18 19 #include <utils/threads.h> 20 21 #include "PathCache.h" 22 #include "Properties.h" 23 24 namespace android { 25 namespace uirenderer { 26 27 /////////////////////////////////////////////////////////////////////////////// 28 // Path cache 29 /////////////////////////////////////////////////////////////////////////////// 30 31 PathCache::PathCache(): ShapeCache<PathCacheEntry>("path", 32 PROPERTY_PATH_CACHE_SIZE, DEFAULT_PATH_CACHE_SIZE) { 33 } 34 35 void PathCache::remove(SkPath* path) { 36 // TODO: Linear search... 37 Vector<uint32_t> pathsToRemove; 38 for (uint32_t i = 0; i < mCache.size(); i++) { 39 if (mCache.getKeyAt(i).path == path) { 40 pathsToRemove.push(i); 41 removeTexture(mCache.getValueAt(i)); 42 } 43 } 44 45 mCache.setOnEntryRemovedListener(NULL); 46 for (size_t i = 0; i < pathsToRemove.size(); i++) { 47 // This will work because pathsToRemove is sorted 48 // and because the cache is a sorted keyed vector 49 mCache.removeAt(pathsToRemove.itemAt(i) - i); 50 } 51 mCache.setOnEntryRemovedListener(this); 52 } 53 54 void PathCache::removeDeferred(SkPath* path) { 55 Mutex::Autolock _l(mLock); 56 mGarbage.push(path); 57 } 58 59 void PathCache::clearGarbage() { 60 Mutex::Autolock _l(mLock); 61 size_t count = mGarbage.size(); 62 for (size_t i = 0; i < count; i++) { 63 remove(mGarbage.itemAt(i)); 64 } 65 mGarbage.clear(); 66 } 67 68 PathTexture* PathCache::get(SkPath* path, SkPaint* paint) { 69 PathCacheEntry entry(path, paint); 70 PathTexture* texture = mCache.get(entry); 71 72 if (!texture) { 73 texture = addTexture(entry, path, paint); 74 } else if (path->getGenerationID() != texture->generation) { 75 mCache.remove(entry); 76 texture = addTexture(entry, path, paint); 77 } 78 79 return texture; 80 } 81 82 }; // namespace uirenderer 83 }; // namespace android 84
