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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.
*/
#define LOG_TAG "OpenGLRenderer"
#include <utils/Log.h>
#include "PatchCache.h"
#include "Properties.h"
namespace android {
namespace uirenderer {
///////////////////////////////////////////////////////////////////////////////
// Constructors/destructor
///////////////////////////////////////////////////////////////////////////////
PatchCache::PatchCache(): mMaxEntries(DEFAULT_PATCH_CACHE_SIZE) {
}
PatchCache::PatchCache(uint32_t maxEntries): mMaxEntries(maxEntries) {
}
PatchCache::~PatchCache() {
clear();
}
///////////////////////////////////////////////////////////////////////////////
// Caching
///////////////////////////////////////////////////////////////////////////////
int PatchCache::PatchDescription::compare(
const PatchCache::PatchDescription& lhs, const PatchCache::PatchDescription& rhs) {
int deltaInt = lhs.bitmapWidth - rhs.bitmapWidth;
if (deltaInt != 0) return deltaInt;
deltaInt = lhs.bitmapHeight - rhs.bitmapHeight;
if (deltaInt != 0) return deltaInt;
if (lhs.pixelWidth < rhs.pixelWidth) return -1;
if (lhs.pixelWidth > rhs.pixelWidth) return +1;
if (lhs.pixelHeight < rhs.pixelHeight) return -1;
if (lhs.pixelHeight > rhs.pixelHeight) return +1;
deltaInt = lhs.xCount - rhs.xCount;
if (deltaInt != 0) return deltaInt;
deltaInt = lhs.yCount - rhs.yCount;
if (deltaInt != 0) return deltaInt;
deltaInt = lhs.emptyCount - rhs.emptyCount;
if (deltaInt != 0) return deltaInt;
deltaInt = lhs.colorKey - rhs.colorKey;
if (deltaInt != 0) return deltaInt;
return 0;
}
void PatchCache::clear() {
size_t count = mCache.size();
for (size_t i = 0; i < count; i++) {
delete mCache.valueAt(i);
}
mCache.clear();
}
Patch* PatchCache::get(const uint32_t bitmapWidth, const uint32_t bitmapHeight,
const float pixelWidth, const float pixelHeight,
const int32_t* xDivs, const int32_t* yDivs, const uint32_t* colors,
const uint32_t width, const uint32_t height, const int8_t numColors) {
int8_t transparentQuads = 0;
uint32_t colorKey = 0;
if (uint8_t(numColors) < sizeof(uint32_t) * 4) {
for (int8_t i = 0; i < numColors; i++) {
if (colors[i] == 0x0) {
transparentQuads++;
colorKey |= 0x1 << i;
}
}
}
// If the 9patch is made of only transparent quads
if (transparentQuads == int8_t((width + 1) * (height + 1))) {
return NULL;
}
const PatchDescription description(bitmapWidth, bitmapHeight,
pixelWidth, pixelHeight, width, height, transparentQuads, colorKey);
ssize_t index = mCache.indexOfKey(description);
Patch* mesh = NULL;
if (index >= 0) {
mesh = mCache.valueAt(index);
}
if (!mesh) {
PATCH_LOGD("New patch mesh "
"xCount=%d yCount=%d, w=%.2f h=%.2f, bw=%.2f bh=%.2f",
width, height, pixelWidth, pixelHeight, bitmapWidth, bitmapHeight);
mesh = new Patch(width, height, transparentQuads);
mesh->updateColorKey(colorKey);
mesh->copy(xDivs, yDivs);
mesh->updateVertices(bitmapWidth, bitmapHeight, 0.0f, 0.0f, pixelWidth, pixelHeight);
if (mCache.size() >= mMaxEntries) {
delete mCache.valueAt(mCache.size() - 1);
mCache.removeItemsAt(mCache.size() - 1, 1);
}
mCache.add(description, mesh);
} else if (!mesh->matches(xDivs, yDivs, colorKey, transparentQuads)) {
PATCH_LOGD("Patch mesh does not match, refreshing vertices");
mesh->updateVertices(bitmapWidth, bitmapHeight, 0.0f, 0.0f, pixelWidth, pixelHeight);
}
return mesh;
}
}; // namespace uirenderer
}; // namespace android
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