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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.
*/
#include <stdlib.h>
#include "Debug.h"
#include "FboCache.h"
#include "Properties.h"
namespace android {
namespace uirenderer {
///////////////////////////////////////////////////////////////////////////////
// Constructors/destructor
///////////////////////////////////////////////////////////////////////////////
FboCache::FboCache()
: mMaxSize(Properties::fboCacheSize) {}
FboCache::~FboCache() {
clear();
}
///////////////////////////////////////////////////////////////////////////////
// Size management
///////////////////////////////////////////////////////////////////////////////
uint32_t FboCache::getSize() {
return mCache.size();
}
uint32_t FboCache::getMaxSize() {
return mMaxSize;
}
///////////////////////////////////////////////////////////////////////////////
// Caching
///////////////////////////////////////////////////////////////////////////////
void FboCache::clear() {
for (size_t i = 0; i < mCache.size(); i++) {
const GLuint fbo = mCache.itemAt(i);
glDeleteFramebuffers(1, &fbo);
}
mCache.clear();
}
GLuint FboCache::get() {
GLuint fbo;
if (mCache.size() > 0) {
fbo = mCache.itemAt(mCache.size() - 1);
mCache.removeAt(mCache.size() - 1);
} else {
glGenFramebuffers(1, &fbo);
}
return fbo;
}
bool FboCache::put(GLuint fbo) {
if (mCache.size() < mMaxSize) {
mCache.add(fbo);
return true;
}
glDeleteFramebuffers(1, &fbo);
return false;
}
}; // namespace uirenderer
}; // namespace android
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