LayerRenderer.cpp revision ada830f639591b99c3e40de22b07296c7932a33f
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) { 30ada830f639591b99c3e40de22b07296c7932a33fRomain Guy LAYER_RENDERER_LOGD("Rendering into layer, fbo = %d", mLayer->fbo); 311fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 326c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &mPreviousFbo); 33ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, mLayer->fbo); 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 42ada830f639591b99c3e40de22b07296c7932a33fRomain Guy LAYER_RENDERER_LOGD("Finished rendering into layer, fbo = %d", mLayer->mFbo); 436c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 446c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 456c319ca1275c8db892c39b48fc54864c949f9171Romain Guy/////////////////////////////////////////////////////////////////////////////// 466c319ca1275c8db892c39b48fc54864c949f9171Romain Guy// Static functions 476c319ca1275c8db892c39b48fc54864c949f9171Romain Guy/////////////////////////////////////////////////////////////////////////////// 486c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 49ada830f639591b99c3e40de22b07296c7932a33fRomain GuyLayer* LayerRenderer::createLayer(uint32_t width, uint32_t height, bool isOpaque) { 501fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy LAYER_RENDERER_LOGD("Creating new layer %dx%d", width, height); 511fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 52ada830f639591b99c3e40de22b07296c7932a33fRomain Guy Layer* layer = new Layer(width, height); 53ada830f639591b99c3e40de22b07296c7932a33fRomain Guy 546c319ca1275c8db892c39b48fc54864c949f9171Romain Guy GLuint previousFbo; 556c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo); 566c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 57ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glGenFramebuffers(1, &layer->fbo); 58ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 596c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 601fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy if (glGetError() != GL_NO_ERROR) { 611fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 62ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glDeleteBuffers(1, &layer->fbo); 631fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy return 0; 641fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy } 651fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 666c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glActiveTexture(GL_TEXTURE0); 67ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glGenTextures(1, &layer->texture); 68ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glBindTexture(GL_TEXTURE_2D, layer->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); 83ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glDeleteBuffers(1, &layer->fbo); 84ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glDeleteTextures(1, &layer->texture); 85ada830f639591b99c3e40de22b07296c7932a33fRomain Guy delete layer; 866c319ca1275c8db892c39b48fc54864c949f9171Romain Guy return 0; 876c319ca1275c8db892c39b48fc54864c949f9171Romain Guy } 886c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 896c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 90ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->texture, 0); 916c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 926c319ca1275c8db892c39b48fc54864c949f9171Romain Guy if (glGetError() != GL_NO_ERROR) { 931fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 94ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glDeleteBuffers(1, &layer->fbo); 95ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glDeleteTextures(1, &layer->texture); 96ada830f639591b99c3e40de22b07296c7932a33fRomain Guy delete layer; 976c319ca1275c8db892c39b48fc54864c949f9171Romain Guy return 0; 986c319ca1275c8db892c39b48fc54864c949f9171Romain Guy } 996c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 1006c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 1016c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 102ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->layer.set(0.0f, 0.0f, width, height); 103ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->texCoords.set(0.0f, 1.0f, 1.0f, 0.0f); 104ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->alpha = 255; 105ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->mode = SkXfermode::kSrcOver_Mode; 106ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->blend = !isOpaque; 107ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->empty = false; 108ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->colorFilter = NULL; 1096c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 110ada830f639591b99c3e40de22b07296c7932a33fRomain Guy return layer; 1116c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 1126c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 113ada830f639591b99c3e40de22b07296c7932a33fRomain Guybool LayerRenderer::resizeLayer(Layer* layer, uint32_t width, uint32_t height) { 114ada830f639591b99c3e40de22b07296c7932a33fRomain Guy if (layer) { 115ada830f639591b99c3e40de22b07296c7932a33fRomain Guy LAYER_RENDERER_LOGD("Resizing layer fbo = %d to %dx%d", layer->fbo, width, height); 1161fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 117ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glActiveTexture(GL_TEXTURE0); 118ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 1196c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 120ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, 121ada830f639591b99c3e40de22b07296c7932a33fRomain Guy GL_RGBA, GL_UNSIGNED_BYTE, NULL); 1226c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 123ada830f639591b99c3e40de22b07296c7932a33fRomain Guy if (glGetError() != GL_NO_ERROR) { 124ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glDeleteBuffers(1, &layer->fbo); 125ada830f639591b99c3e40de22b07296c7932a33fRomain Guy glDeleteTextures(1, &layer->texture); 1266c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 127ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->width = 0; 128ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->height = 0; 129ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->fbo = 0; 130ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->texture = 0; 1316c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 132ada830f639591b99c3e40de22b07296c7932a33fRomain Guy return false; 133ada830f639591b99c3e40de22b07296c7932a33fRomain Guy } 1346c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 135ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->width = width; 136ada830f639591b99c3e40de22b07296c7932a33fRomain Guy layer->height = height; 137ada830f639591b99c3e40de22b07296c7932a33fRomain Guy } 138ada830f639591b99c3e40de22b07296c7932a33fRomain Guy return true; 1396c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 1406c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 141ada830f639591b99c3e40de22b07296c7932a33fRomain Guyvoid LayerRenderer::destroyLayer(Layer* layer) { 142ada830f639591b99c3e40de22b07296c7932a33fRomain Guy if (layer) { 143ada830f639591b99c3e40de22b07296c7932a33fRomain Guy LAYER_RENDERER_LOGD("Destroying layer, fbo = %d", layer->fbo); 144ada830f639591b99c3e40de22b07296c7932a33fRomain Guy 145ada830f639591b99c3e40de22b07296c7932a33fRomain Guy if (layer->fbo) glDeleteFramebuffers(1, &layer->fbo); 146ada830f639591b99c3e40de22b07296c7932a33fRomain Guy if (layer->texture) glDeleteTextures(1, &layer->texture); 1471fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 148ada830f639591b99c3e40de22b07296c7932a33fRomain Guy delete layer; 149ada830f639591b99c3e40de22b07296c7932a33fRomain Guy } 1506c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 1516c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 152ada830f639591b99c3e40de22b07296c7932a33fRomain Guyvoid LayerRenderer::destroyLayerDeferred(Layer* layer) { 153ada830f639591b99c3e40de22b07296c7932a33fRomain Guy if (layer) { 154ada830f639591b99c3e40de22b07296c7932a33fRomain Guy LAYER_RENDERER_LOGD("Deferring layer destruction, fbo = %d", layer->fbo); 1551fc883b271707c4206ae20cc9a935d7bd4a7485eRomain Guy 156ada830f639591b99c3e40de22b07296c7932a33fRomain Guy Caches::getInstance().deleteLayerDeferred(layer); 157ada830f639591b99c3e40de22b07296c7932a33fRomain Guy } 15857066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy} 15957066eb64c9a190d1afc87bb060bbb2d31e5b86cRomain Guy 1606c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}; // namespace uirenderer 1616c319ca1275c8db892c39b48fc54864c949f9171Romain Guy}; // namespace android 162