LayerCache.cpp revision 9ace8f5e79e76893fe4ca9e4d10f6c4056330485
1dda570201ac851dd85af3861f7e575721d3345daRomain Guy/* 2dda570201ac851dd85af3861f7e575721d3345daRomain Guy * Copyright (C) 2010 The Android Open Source Project 3dda570201ac851dd85af3861f7e575721d3345daRomain Guy * 4dda570201ac851dd85af3861f7e575721d3345daRomain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5dda570201ac851dd85af3861f7e575721d3345daRomain Guy * you may not use this file except in compliance with the License. 6dda570201ac851dd85af3861f7e575721d3345daRomain Guy * You may obtain a copy of the License at 7dda570201ac851dd85af3861f7e575721d3345daRomain Guy * 8dda570201ac851dd85af3861f7e575721d3345daRomain Guy * http://www.apache.org/licenses/LICENSE-2.0 9dda570201ac851dd85af3861f7e575721d3345daRomain Guy * 10dda570201ac851dd85af3861f7e575721d3345daRomain Guy * Unless required by applicable law or agreed to in writing, software 11dda570201ac851dd85af3861f7e575721d3345daRomain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12dda570201ac851dd85af3861f7e575721d3345daRomain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13dda570201ac851dd85af3861f7e575721d3345daRomain Guy * See the License for the specific language governing permissions and 14dda570201ac851dd85af3861f7e575721d3345daRomain Guy * limitations under the License. 15dda570201ac851dd85af3861f7e575721d3345daRomain Guy */ 16dda570201ac851dd85af3861f7e575721d3345daRomain Guy 17dda570201ac851dd85af3861f7e575721d3345daRomain Guy#define LOG_TAG "OpenGLRenderer" 18dda570201ac851dd85af3861f7e575721d3345daRomain Guy 19dda570201ac851dd85af3861f7e575721d3345daRomain Guy#include <GLES2/gl2.h> 20dda570201ac851dd85af3861f7e575721d3345daRomain Guy 21f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy#include <utils/Log.h> 22f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 23c9855a53edfac818dc68714557185977556f849dRomain Guy#include "Debug.h" 24dda570201ac851dd85af3861f7e575721d3345daRomain Guy#include "LayerCache.h" 25fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy#include "Properties.h" 26dda570201ac851dd85af3861f7e575721d3345daRomain Guy 27dda570201ac851dd85af3861f7e575721d3345daRomain Guynamespace android { 28dda570201ac851dd85af3861f7e575721d3345daRomain Guynamespace uirenderer { 29dda570201ac851dd85af3861f7e575721d3345daRomain Guy 30dda570201ac851dd85af3861f7e575721d3345daRomain Guy/////////////////////////////////////////////////////////////////////////////// 31dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Constructors/destructor 32dda570201ac851dd85af3861f7e575721d3345daRomain Guy/////////////////////////////////////////////////////////////////////////////// 33dda570201ac851dd85af3861f7e575721d3345daRomain Guy 348550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain GuyLayerCache::LayerCache(): mSize(0), mMaxSize(MB(DEFAULT_LAYER_CACHE_SIZE)) { 35fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy char property[PROPERTY_VALUE_MAX]; 36fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 37c9855a53edfac818dc68714557185977556f849dRomain Guy INIT_LOGD(" Setting layer cache size to %sMB", property); 38fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy setMaxSize(MB(atof(property))); 39fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else { 40c9855a53edfac818dc68714557185977556f849dRomain Guy INIT_LOGD(" Using default layer cache size of %.2fMB", DEFAULT_LAYER_CACHE_SIZE); 41fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } 42fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy} 43fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 44dda570201ac851dd85af3861f7e575721d3345daRomain GuyLayerCache::~LayerCache() { 455f0c6a483900f3989f4d2a8f913cf5b6a9777d03Romain Guy clear(); 46dda570201ac851dd85af3861f7e575721d3345daRomain Guy} 47dda570201ac851dd85af3861f7e575721d3345daRomain Guy 48dda570201ac851dd85af3861f7e575721d3345daRomain Guy/////////////////////////////////////////////////////////////////////////////// 49dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Size management 50dda570201ac851dd85af3861f7e575721d3345daRomain Guy/////////////////////////////////////////////////////////////////////////////// 51dda570201ac851dd85af3861f7e575721d3345daRomain Guy 52dda570201ac851dd85af3861f7e575721d3345daRomain Guyuint32_t LayerCache::getSize() { 53dda570201ac851dd85af3861f7e575721d3345daRomain Guy return mSize; 54dda570201ac851dd85af3861f7e575721d3345daRomain Guy} 55dda570201ac851dd85af3861f7e575721d3345daRomain Guy 56dda570201ac851dd85af3861f7e575721d3345daRomain Guyuint32_t LayerCache::getMaxSize() { 57dda570201ac851dd85af3861f7e575721d3345daRomain Guy return mMaxSize; 58dda570201ac851dd85af3861f7e575721d3345daRomain Guy} 59dda570201ac851dd85af3861f7e575721d3345daRomain Guy 60dda570201ac851dd85af3861f7e575721d3345daRomain Guyvoid LayerCache::setMaxSize(uint32_t maxSize) { 618550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy clear(); 62dda570201ac851dd85af3861f7e575721d3345daRomain Guy mMaxSize = maxSize; 63dda570201ac851dd85af3861f7e575721d3345daRomain Guy} 64dda570201ac851dd85af3861f7e575721d3345daRomain Guy 65dda570201ac851dd85af3861f7e575721d3345daRomain Guy/////////////////////////////////////////////////////////////////////////////// 66dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Caching 67dda570201ac851dd85af3861f7e575721d3345daRomain Guy/////////////////////////////////////////////////////////////////////////////// 68dda570201ac851dd85af3861f7e575721d3345daRomain Guy 69dda570201ac851dd85af3861f7e575721d3345daRomain Guyvoid LayerCache::deleteLayer(Layer* layer) { 70dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (layer) { 719ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy mSize -= layer->getWidth() * layer->getHeight() * 4; 729ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->deleteTexture(); 73dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 74dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 75dda570201ac851dd85af3861f7e575721d3345daRomain Guy} 76dda570201ac851dd85af3861f7e575721d3345daRomain Guy 77dda570201ac851dd85af3861f7e575721d3345daRomain Guyvoid LayerCache::clear() { 788550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy size_t count = mCache.size(); 798550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy for (size_t i = 0; i < count; i++) { 808550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy deleteLayer(mCache.itemAt(i).mLayer); 818550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy } 82dda570201ac851dd85af3861f7e575721d3345daRomain Guy mCache.clear(); 83dda570201ac851dd85af3861f7e575721d3345daRomain Guy} 84dda570201ac851dd85af3861f7e575721d3345daRomain Guy 858550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain GuyLayer* LayerCache::get(const uint32_t width, const uint32_t height) { 868550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy Layer* layer = NULL; 878550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy 888550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy LayerEntry entry(width, height); 898550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy ssize_t index = mCache.indexOf(entry); 90f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 918550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy if (index >= 0) { 928550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy entry = mCache.itemAt(index); 938550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy mCache.removeAt(index); 948550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy 958550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy layer = entry.mLayer; 969ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy mSize -= layer->getWidth() * layer->getHeight() * 4; 978550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy 989ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy LAYER_LOGD("Reusing layer %dx%d", layer->getWidth(), layer->getHeight()); 99f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy } else { 1008550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy LAYER_LOGD("Creating new layer %dx%d", entry.mWidth, entry.mHeight); 101f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 1028550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy layer = new Layer(entry.mWidth, entry.mHeight); 1039ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setBlend(true); 1049ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setEmpty(true); 1059ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFbo(0); 1069ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 1079ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->generateTexture(); 1089ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->bindTexture(); 1099ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_NEAREST, GL_NEAREST); 1109ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setWrap(GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 1110bb5667b4ef91fefd0500fae0186789d15d54e0eRomain Guy glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 1120bb5667b4ef91fefd0500fae0186789d15d54e0eRomain Guy 113eb99356a0548684a501766e6a524529ab93304c8Romain Guy#if DEBUG_LAYERS 1148550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy size_t size = mCache.size(); 1158550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy for (size_t i = 0; i < size; i++) { 1168550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy const LayerEntry& entry = mCache.itemAt(i); 1178550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy LAYER_LOGD(" Layer size %dx%d", entry.mWidth, entry.mHeight); 118eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 119eb99356a0548684a501766e6a524529ab93304c8Romain Guy#endif 120dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 121f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 122dda570201ac851dd85af3861f7e575721d3345daRomain Guy return layer; 123dda570201ac851dd85af3861f7e575721d3345daRomain Guy} 124dda570201ac851dd85af3861f7e575721d3345daRomain Guy 12509b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guybool LayerCache::resize(Layer* layer, const uint32_t width, const uint32_t height) { 12609b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy // TODO: We should be smarter and see if we have a texture of the appropriate 12709b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy // size already in the cache, and reuse it instead of creating a new one 12809b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy 12909b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy LayerEntry entry(width, height); 1309ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (entry.mWidth <= layer->getWidth() && entry.mHeight <= layer->getHeight()) { 13109b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy return true; 13209b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy } 13309b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy 1349ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy uint32_t oldWidth = layer->getWidth(); 1359ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy uint32_t oldHeight = layer->getHeight(); 13609b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy 1379ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy glActiveTexture(GL_TEXTURE0); 1389ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->bindTexture(); 1399ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setSize(entry.mWidth, entry.mHeight); 1409ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->allocateTexture(GL_RGBA, GL_UNSIGNED_BYTE); 14109b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy 14209b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy if (glGetError() != GL_NO_ERROR) { 1439ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setSize(oldWidth, oldHeight); 14409b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy return false; 14509b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy } 14609b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy 14709b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy return true; 14809b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy} 14909b7c91de73b59aa3f679b3ae3ba299f82ec9f8aRomain Guy 1508550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guybool LayerCache::put(Layer* layer) { 1519ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (!layer->isCacheable()) return false; 152aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 1539ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy const uint32_t size = layer->getWidth() * layer->getHeight() * 4; 154dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Don't even try to cache a layer that's bigger than the cache 155dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (size < mMaxSize) { 1568550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy // TODO: Use an LRU 157dda570201ac851dd85af3861f7e575721d3345daRomain Guy while (mSize + size > mMaxSize) { 158e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy size_t position = 0; 159e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy#if LAYER_REMOVE_BIGGEST 160e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy position = mCache.size() - 1; 161e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy#endif 162e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy Layer* victim = mCache.itemAt(position).mLayer; 163e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy deleteLayer(victim); 164e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy mCache.removeAt(position); 1658550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy 166e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy LAYER_LOGD(" Deleting layer %.2fx%.2f", victim->layer.getWidth(), 167e91080581f467d55913a8c5ab53dedc2dab2e5b6Romain Guy victim->layer.getHeight()); 168dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 169dda570201ac851dd85af3861f7e575721d3345daRomain Guy 1708550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy LayerEntry entry(layer); 1718550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy 1728550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy mCache.add(entry); 173dda570201ac851dd85af3861f7e575721d3345daRomain Guy mSize += size; 174dda570201ac851dd85af3861f7e575721d3345daRomain Guy 175dda570201ac851dd85af3861f7e575721d3345daRomain Guy return true; 176dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 177dda570201ac851dd85af3861f7e575721d3345daRomain Guy return false; 178dda570201ac851dd85af3861f7e575721d3345daRomain Guy} 179dda570201ac851dd85af3861f7e575721d3345daRomain Guy 180dda570201ac851dd85af3861f7e575721d3345daRomain Guy}; // namespace uirenderer 181dda570201ac851dd85af3861f7e575721d3345daRomain Guy}; // namespace android 182