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
PathCache()31 PathCache::PathCache(): ShapeCache<PathCacheEntry>("path",
32 PROPERTY_PATH_CACHE_SIZE, DEFAULT_PATH_CACHE_SIZE) {
33 }
34
remove(SkPath * path)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
removeDeferred(SkPath * path)54 void PathCache::removeDeferred(SkPath* path) {
55 Mutex::Autolock _l(mLock);
56 mGarbage.push(path);
57 }
58
clearGarbage()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
get(SkPath * path,SkPaint * paint)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