1202a77d28ac251545f6f998a974690212309b927Iliyan Malchev/* 2202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * Copyright (C) 2010 The Android Open Source Project 3a43fb8fce6d9be5577de1e0f49c99bd4fe2f6d44Duy Truong * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved. 4202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * 5202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * Licensed under the Apache License, Version 2.0 (the "License"); 6202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * you may not use this file except in compliance with the License. 7202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * You may obtain a copy of the License at 8202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * 9202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * http://www.apache.org/licenses/LICENSE-2.0 10202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * 11202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * Unless required by applicable law or agreed to in writing, software 12202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * distributed under the License is distributed on an "AS IS" BASIS, 13202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * See the License for the specific language governing permissions and 15202a77d28ac251545f6f998a974690212309b927Iliyan Malchev * limitations under the License. 16202a77d28ac251545f6f998a974690212309b927Iliyan Malchev */ 17202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 18202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <GLES2/gl2.h> 19202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <EGL/egl.h> 20202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <gl2ext.h> 21202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include <OpenGLRenderer.h> 22202a77d28ac251545f6f998a974690212309b927Iliyan Malchev#include "tilerenderer.h" 23202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 24202a77d28ac251545f6f998a974690212309b927Iliyan Malchevnamespace android { 25202a77d28ac251545f6f998a974690212309b927Iliyan MalchevANDROID_SINGLETON_STATIC_INSTANCE(uirenderer::TileRenderer) ; 26202a77d28ac251545f6f998a974690212309b927Iliyan Malchevnamespace uirenderer { 27202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 28202a77d28ac251545f6f998a974690212309b927Iliyan MalchevTileRenderer::TileRenderer() { 29202a77d28ac251545f6f998a974690212309b927Iliyan Malchev mIsTiled = false; 30202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 31202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 32202a77d28ac251545f6f998a974690212309b927Iliyan MalchevTileRenderer::~TileRenderer() { 33202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 34202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 35202a77d28ac251545f6f998a974690212309b927Iliyan Malchevvoid TileRenderer::startTileRendering(OpenGLRenderer* renderer, 36202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int left, int top, 37202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int right, int bottom) { 38202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int width = 0; 39202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int height = 0; 40202a77d28ac251545f6f998a974690212309b927Iliyan Malchev GLenum status = GL_NO_ERROR; 41202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 42202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (renderer != NULL) { 43202a77d28ac251545f6f998a974690212309b927Iliyan Malchev renderer->getViewport(width, height); 44202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 45202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 46202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (!left && !right && !top && !bottom) { 47202a77d28ac251545f6f998a974690212309b927Iliyan Malchev left = 0; 48202a77d28ac251545f6f998a974690212309b927Iliyan Malchev top = 0; 49202a77d28ac251545f6f998a974690212309b927Iliyan Malchev right = width; 50202a77d28ac251545f6f998a974690212309b927Iliyan Malchev bottom = height; 51202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 52202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 53202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (!left && !right && !top && !bottom) { 54202a77d28ac251545f6f998a974690212309b927Iliyan Malchev //can't do tile rendering 5529a26818d7294055539167b2fbfdaa168bcf725cNaseer Ahmed ALOGE("can't tile render; drity region, width, height not available"); 56202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return; 57202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 58202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 59202a77d28ac251545f6f998a974690212309b927Iliyan Malchev int l = left, t = (height - bottom), w = (right - left), h = (bottom - top), preserve = 0; 60202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 61202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (l < 0 || t < 0) { 62202a77d28ac251545f6f998a974690212309b927Iliyan Malchev l = (l < 0) ? 0 : l; 63202a77d28ac251545f6f998a974690212309b927Iliyan Malchev t = (t < 0) ? 0 : t; 64202a77d28ac251545f6f998a974690212309b927Iliyan Malchev preserve = 1; 65202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 66202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 67202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (w > width || h > height) { 68202a77d28ac251545f6f998a974690212309b927Iliyan Malchev w = (w > width) ? width : w; 69202a77d28ac251545f6f998a974690212309b927Iliyan Malchev h = (h > height) ? height : h; 70202a77d28ac251545f6f998a974690212309b927Iliyan Malchev preserve = 1; 71202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 72202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 73202a77d28ac251545f6f998a974690212309b927Iliyan Malchev //clear off all errors before tiling, if any 74202a77d28ac251545f6f998a974690212309b927Iliyan Malchev while ((status = glGetError()) != GL_NO_ERROR); 75202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 76202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (preserve) 77202a77d28ac251545f6f998a974690212309b927Iliyan Malchev glStartTilingQCOM(l, t, w, h, GL_COLOR_BUFFER_BIT0_QCOM); 78202a77d28ac251545f6f998a974690212309b927Iliyan Malchev else 79202a77d28ac251545f6f998a974690212309b927Iliyan Malchev glStartTilingQCOM(l, t, w, h, GL_NONE); 80202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 81202a77d28ac251545f6f998a974690212309b927Iliyan Malchev status = glGetError(); 82202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (status == GL_NO_ERROR) 83202a77d28ac251545f6f998a974690212309b927Iliyan Malchev mIsTiled = true; 84202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 85202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 86202a77d28ac251545f6f998a974690212309b927Iliyan Malchevvoid TileRenderer::endTileRendering(OpenGLRenderer*) { 87202a77d28ac251545f6f998a974690212309b927Iliyan Malchev if (!mIsTiled) { 88202a77d28ac251545f6f998a974690212309b927Iliyan Malchev return; 89202a77d28ac251545f6f998a974690212309b927Iliyan Malchev } 90202a77d28ac251545f6f998a974690212309b927Iliyan Malchev glEndTilingQCOM(GL_COLOR_BUFFER_BIT0_QCOM); 91202a77d28ac251545f6f998a974690212309b927Iliyan Malchev mIsTiled = false; 92202a77d28ac251545f6f998a974690212309b927Iliyan Malchev GLenum status = GL_NO_ERROR; 93202a77d28ac251545f6f998a974690212309b927Iliyan Malchev while ((status = glGetError()) != GL_NO_ERROR); 94202a77d28ac251545f6f998a974690212309b927Iliyan Malchev} 95202a77d28ac251545f6f998a974690212309b927Iliyan Malchev 96202a77d28ac251545f6f998a974690212309b927Iliyan Malchev}; // namespace uirenderer 97202a77d28ac251545f6f998a974690212309b927Iliyan Malchev}; // namespace android 98