PatchCache.cpp revision f7f93556c8fcc640ab5adef79d021a80a72a645a 
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/Log.h>
20#include <utils/ResourceTypes.h>
21
22#include "PatchCache.h"
23
24namespace android {
25namespace uirenderer {
26
27///////////////////////////////////////////////////////////////////////////////
28// Constructors/destructor
29///////////////////////////////////////////////////////////////////////////////
30
31PatchCache::PatchCache(uint32_t maxEntries): mCache(maxEntries) {
32}
33
34PatchCache::~PatchCache() {
35    clear();
36}
37
38///////////////////////////////////////////////////////////////////////////////
39// Callbacks
40///////////////////////////////////////////////////////////////////////////////
41
42void PatchCache::operator()(PatchDescription& description, Patch*& mesh) {
43    if (mesh) delete mesh;
44}
45
46///////////////////////////////////////////////////////////////////////////////
47// Caching
48///////////////////////////////////////////////////////////////////////////////
49
50void PatchCache::clear() {
51    mCache.setOnEntryRemovedListener(this);
52    mCache.clear();
53    mCache.setOnEntryRemovedListener(NULL);
54}
55
56Patch* PatchCache::get(const Res_png_9patch* patch) {
57    const uint32_t width = patch->numXDivs;
58    const uint32_t height = patch->numYDivs;
59    const PatchDescription description(width, height);
60
61    Patch* mesh = mCache.get(description);
62    if (!mesh) {
63        PATCH_LOGD("Creating new patch mesh, w=%d h=%d", width, height);
64        mesh = new Patch(width, height);
65        mCache.put(description, mesh);
66    }
67
68    return mesh;
69}
70
71}; // namespace uirenderer
72}; // namespace android
73