LayerRenderer.cpp revision 1fc883b271707c4206ae20cc9a935d7bd4a7485e
16c319ca1275c8db892c39b48fc54864c949f9171Romain Guy/* 26c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * Copyright (C) 2011 The Android Open Source Project 36c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * 46c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 56c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * you may not use this file except in compliance with the License. 66c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * You may obtain a copy of the License at 76c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * 86c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 96c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * 106c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * Unless required by applicable law or agreed to in writing, software 116c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 126c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 136c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * See the License for the specific language governing permissions and 146c319ca1275c8db892c39b48fc54864c949f9171Romain Guy * limitations under the License. 156c319ca1275c8db892c39b48fc54864c949f9171Romain Guy */ 166c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 176c319ca1275c8db892c39b48fc54864c949f9171Romain Guy#define LOG_TAG "OpenGLRenderer" 186c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 196c319ca1275c8db892c39b48fc54864c949f9171Romain Guy#include "LayerRenderer.h" 201fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy#include "Properties.h" 216c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 226c319ca1275c8db892c39b48fc54864c949f9171Romain Guynamespace android { 236c319ca1275c8db892c39b48fc54864c949f9171Romain Guynamespace uirenderer { 246c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 256c319ca1275c8db892c39b48fc54864c949f9171Romain Guy/////////////////////////////////////////////////////////////////////////////// 266c319ca1275c8db892c39b48fc54864c949f9171Romain Guy// Rendering 276c319ca1275c8db892c39b48fc54864c949f9171Romain Guy/////////////////////////////////////////////////////////////////////////////// 286c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 296c319ca1275c8db892c39b48fc54864c949f9171Romain Guyvoid LayerRenderer::prepare(bool opaque) { 301fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy LAYER_RENDERER_LOGD("Rendering into layer, fbo = %d", mFbo); 311fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 326c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &mPreviousFbo); 336c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, mFbo); 341fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 356c319ca1275c8db892c39b48fc54864c949f9171Romain Guy OpenGLRenderer::prepare(opaque); 366c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 376c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 386c319ca1275c8db892c39b48fc54864c949f9171Romain Guyvoid LayerRenderer::finish() { 396c319ca1275c8db892c39b48fc54864c949f9171Romain Guy OpenGLRenderer::finish(); 406c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, mPreviousFbo); 411fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 421fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy LAYER_RENDERER_LOGD("Finished rendering into layer, fbo = %d", mFbo); 436c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 446c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 456c319ca1275c8db892c39b48fc54864c949f9171Romain Guy/////////////////////////////////////////////////////////////////////////////// 466c319ca1275c8db892c39b48fc54864c949f9171Romain Guy// Static functions 476c319ca1275c8db892c39b48fc54864c949f9171Romain Guy/////////////////////////////////////////////////////////////////////////////// 486c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 496c319ca1275c8db892c39b48fc54864c949f9171Romain GuyGLuint LayerRenderer::createLayer(uint32_t width, uint32_t height, 506c319ca1275c8db892c39b48fc54864c949f9171Romain Guy uint32_t* layerWidth, uint32_t* layerHeight, GLuint* texture) { 511fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy LAYER_RENDERER_LOGD("Creating new layer %dx%d", width, height); 521fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 536c319ca1275c8db892c39b48fc54864c949f9171Romain Guy GLuint previousFbo; 546c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo); 556c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 566c319ca1275c8db892c39b48fc54864c949f9171Romain Guy GLuint fbo = 0; 576c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glGenFramebuffers(1, &fbo); 586c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, fbo); 596c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 601fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy if (glGetError() != GL_NO_ERROR) { 611fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 621fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy glDeleteBuffers(1, &fbo); 631fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy return 0; 641fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy } 651fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 666c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glActiveTexture(GL_TEXTURE0); 676c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glGenTextures(1, texture); 686c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glBindTexture(GL_TEXTURE_2D, *texture); 696c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 706c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 716c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 726c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 736c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 746c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 756c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 766c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 776c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 786c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, 796c319ca1275c8db892c39b48fc54864c949f9171Romain Guy GL_RGBA, GL_UNSIGNED_BYTE, NULL); 806c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 816c319ca1275c8db892c39b48fc54864c949f9171Romain Guy if (glGetError() != GL_NO_ERROR) { 821fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 836c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glDeleteBuffers(1, &fbo); 846c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glDeleteTextures(1, texture); 856c319ca1275c8db892c39b48fc54864c949f9171Romain Guy return 0; 866c319ca1275c8db892c39b48fc54864c949f9171Romain Guy } 876c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 886c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 896c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *texture, 0); 906c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 916c319ca1275c8db892c39b48fc54864c949f9171Romain Guy if (glGetError() != GL_NO_ERROR) { 921fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 936c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glDeleteBuffers(1, &fbo); 946c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glDeleteTextures(1, texture); 956c319ca1275c8db892c39b48fc54864c949f9171Romain Guy return 0; 966c319ca1275c8db892c39b48fc54864c949f9171Romain Guy } 976c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 986c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 996c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1006c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *layerWidth = width; 1016c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *layerHeight = height; 1026c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1036c319ca1275c8db892c39b48fc54864c949f9171Romain Guy return fbo; 1046c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 1056c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1066c319ca1275c8db892c39b48fc54864c949f9171Romain Guyvoid LayerRenderer::resizeLayer(GLuint fbo, GLuint texture, uint32_t width, uint32_t height, 1076c319ca1275c8db892c39b48fc54864c949f9171Romain Guy uint32_t* layerWidth, uint32_t* layerHeight) { 1081fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy LAYER_RENDERER_LOGD("Resizing layer fbo = %d to %dx%d", fbo, width, height); 1091fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 1106c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glActiveTexture(GL_TEXTURE0); 1116c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 1126c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1136c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, 1146c319ca1275c8db892c39b48fc54864c949f9171Romain Guy GL_RGBA, GL_UNSIGNED_BYTE, NULL); 1156c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1166c319ca1275c8db892c39b48fc54864c949f9171Romain Guy if (glGetError() != GL_NO_ERROR) { 1176c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glDeleteBuffers(1, &fbo); 118a9d0711392689a94b9f76eb0c16d0718c005603eRomain Guy glDeleteTextures(1, &texture); 1196c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1206c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *layerWidth = 0; 1216c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *layerHeight = 0; 1226c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1236c319ca1275c8db892c39b48fc54864c949f9171Romain Guy return; 1246c319ca1275c8db892c39b48fc54864c949f9171Romain Guy } 1256c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1266c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *layerWidth = width; 1276c319ca1275c8db892c39b48fc54864c949f9171Romain Guy *layerHeight = height; 1286c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 1296c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1306c319ca1275c8db892c39b48fc54864c949f9171Romain Guyvoid LayerRenderer::destroyLayer(GLuint fbo, GLuint texture) { 1311fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy LAYER_RENDERER_LOGD("Destroying layer, fbo = %d", fbo); 1321fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 1336c319ca1275c8db892c39b48fc54864c949f9171Romain Guy if (fbo) glDeleteFramebuffers(1, &fbo); 1346c319ca1275c8db892c39b48fc54864c949f9171Romain Guy if (texture) glDeleteTextures(1, &texture); 1356c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 1366c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 13757066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guyvoid LayerRenderer::destroyLayerDeferred(GLuint fbo, GLuint texture) { 1381fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy LAYER_RENDERER_LOGD("Deferring layer destruction, fbo = %d", fbo); 1391fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 14057066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy Caches& caches = Caches::getInstance(); 14157066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy if (fbo) caches.deleteFboDeferred(fbo); 14257066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy if (texture) caches.deleteTextureDeferred(texture); 14357066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy} 14457066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy 1456c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}; // namespace uirenderer 1466c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}; // namespace android 147