88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "OpenGLRenderer"
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#include <utils/Log.h>
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#include <utils/ResourceTypes.h>
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#include "PatchCache.h"
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#include "Properties.h"
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namespace android {
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namespace uirenderer {
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///////////////////////////////////////////////////////////////////////////////
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// Constructors/destructor
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///////////////////////////////////////////////////////////////////////////////
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PatchCache::PatchCache(): mMaxEntries(DEFAULT_PATCH_CACHE_SIZE) {
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}
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PatchCache::PatchCache(uint32_t maxEntries): mMaxEntries(maxEntries) {
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}
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PatchCache::~PatchCache() {
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clear();
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}
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///////////////////////////////////////////////////////////////////////////////
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// Caching
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///////////////////////////////////////////////////////////////////////////////
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void PatchCache::clear() {
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size_t count = mCache.size();
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for (int i = 0; i < count; i++) {
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delete mCache.valueAt(i);
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}
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mCache.clear();
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}
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Patch* PatchCache::get(const float bitmapWidth, const float bitmapHeight,
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const float pixelWidth, const float pixelHeight,
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const int32_t* xDivs, const int32_t* yDivs,
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const uint32_t width, const uint32_t height) {
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const PatchDescription description(bitmapWidth, bitmapHeight,
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pixelWidth, pixelHeight, width, height);
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ssize_t index = mCache.indexOfKey(description);
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Patch* mesh = NULL;
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if (index >= 0) {
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mesh = mCache.valueAt(index);
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}
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if (!mesh) {
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PATCH_LOGD("Creating new patch mesh, w=%d h=%d", width, height);
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mesh = new Patch(width, height);
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mesh->updateVertices(bitmapWidth, bitmapHeight, 0.0f, 0.0f,
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pixelWidth, pixelHeight, xDivs, yDivs, width, height);
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if (mCache.size() >= mMaxEntries) {
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delete mCache.valueAt(0);
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mCache.removeItemsAt(0, 1);
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}
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mCache.add(description, mesh);
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}
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return mesh;
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}
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}; // namespace uirenderer
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}; // namespace android
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