OpenGLRenderer.cpp revision dda570201ac851dd85af3861f7e575721d3345da
1e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy/* 2e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Copyright (C) 2010 The Android Open Source Project 3e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 4e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * you may not use this file except in compliance with the License. 6e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * You may obtain a copy of the License at 7e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 8e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 10e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Unless required by applicable law or agreed to in writing, software 11e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * See the License for the specific language governing permissions and 14e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * limitations under the License. 15e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy */ 16e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 1785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#define LOG_TAG "OpenGLRenderer" 18e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 19e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy#include <stdlib.h> 20e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy#include <stdint.h> 21e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy#include <sys/types.h> 22e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 23bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#include <SkCanvas.h> 245cbbce535744b89df5ecea95de21ee3733298260Romain Guy 25121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#include <cutils/properties.h> 265cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include <utils/Log.h> 2785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 2885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include "OpenGLRenderer.h" 29e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 30e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 319d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 329d5316e3f56d138504565ff311145ac01621dff4Romain Guy 339d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 349d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 359d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 369d5316e3f56d138504565ff311145ac01621dff4Romain Guy 37dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Debug 38dda570201ac851dd85af3861f7e575721d3345daRomain Guy#define DEBUG_LAYERS 0 39dda570201ac851dd85af3861f7e575721d3345daRomain Guy 40121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// These properties are defined in mega-bytes 41121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size" 42121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size" 43121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 44dda570201ac851dd85af3861f7e575721d3345daRomain Guy#define DEFAULT_TEXTURE_CACHE_SIZE 20 45dda570201ac851dd85af3861f7e575721d3345daRomain Guy#define DEFAULT_LAYER_CACHE_SIZE 10 46dda570201ac851dd85af3861f7e575721d3345daRomain Guy 47121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// Converts a number of mega-bytes into bytes 48121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define MB(s) s * 1024 * 1024 49121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 50dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Generates simple and textured vertices 51bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define SV(x, y) { { x, y } } 52bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy 54dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Debug 55dda570201ac851dd85af3861f7e575721d3345daRomain Guy#ifdef DEBUG_LAYERS 56dda570201ac851dd85af3861f7e575721d3345daRomain Guy #define LAYER_LOGD(...) LOGD(__VA_ARGS__) 57dda570201ac851dd85af3861f7e575721d3345daRomain Guy#else 58dda570201ac851dd85af3861f7e575721d3345daRomain Guy #define LAYER_LOGD(...) 59dda570201ac851dd85af3861f7e575721d3345daRomain Guy#endif 60dda570201ac851dd85af3861f7e575721d3345daRomain Guy 619d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 629d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 639d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 649d5316e3f56d138504565ff311145ac01621dff4Romain Guy 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const SimpleVertex gDrawColorVertices[] = { 66bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 0.0f), 67bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 0.0f), 68bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 1.0f), 69bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 1.0f) 709d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; 71026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexStride = sizeof(SimpleVertex); 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexCount = 4; 739d5316e3f56d138504565ff311145ac01621dff4Romain Guy 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const TextureVertex gDrawTextureVertices[] = { 77c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 78c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 79c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 80c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 81bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexStride = sizeof(TextureVertex); 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexCount = 4; 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 86026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 87026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 88026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 89026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 90026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 91026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 92026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 93026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 94026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 95026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 96026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 97026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 98026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 99026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 100026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 101e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 103f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 104f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 105f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 106dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 107dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 108dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)) { 10985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1109d5316e3f56d138504565ff311145ac01621dff4Romain Guy 111121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 112121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 113dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 114121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy mTextureCache.setMaxSize(MB(atoi(property))); 115dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 116dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default texture cache size of %dMB", DEFAULT_TEXTURE_CACHE_SIZE); 117dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 118dda570201ac851dd85af3861f7e575721d3345daRomain Guy 119dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 120dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 121dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.setMaxSize(MB(atoi(property))); 122dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 123dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default layer cache size of %dMB", DEFAULT_LAYER_CACHE_SIZE); 124121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 125121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 1269d5316e3f56d138504565ff311145ac01621dff4Romain Guy mDrawColorShader = new DrawColorProgram; 127bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mDrawTextureShader = new DrawTextureProgram; 128026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 129026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy memcpy(mDrawTextureVertices, gDrawTextureVertices, sizeof(gDrawTextureVertices)); 130e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 131e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 13285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 13385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 134ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 135ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 136dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 137e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 138e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 139f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 140f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 141f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 142f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 14385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 14408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 14508ae317c21ec3086b5017672bba87420cc38a407Romain Guy 14608ae317c21ec3086b5017672bba87420cc38a407Romain Guy mat4 ortho; 147c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy ortho.loadOrtho(0, width, height, 0, -1, 1); 14808ae317c21ec3086b5017672bba87420cc38a407Romain Guy ortho.copyTo(mOrthoMatrix); 149bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 150bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 151bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 152f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mFirstSnapshot.height = height; 153e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 154e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 15585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1567ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = &mFirstSnapshot; 1577ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 158f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 15908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 160bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 16108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 16208ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 163bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 16408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 165c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 166f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 167bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mSnapshot->clipRect.set(0.0f, 0.0f, mWidth, mHeight); 168bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 169bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 170f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 171f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 172f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 173f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 174bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 176bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 177bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 178bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1797ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 180bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 182bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 1837ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 184bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1857ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 1867ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 1877ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 188bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 189bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 190bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 1917ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 192bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1937ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 194bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1957ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 1967ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 1977ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 198bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1997ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 2007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2017ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 202bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 203bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 204bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2057ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 208bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 211bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 212f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 214bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2157ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 216bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 217f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 218f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy memcpy(mOrthoMatrix, current->orthoMatrix, sizeof(mOrthoMatrix)); 219f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 220f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 221bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 222d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 223d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 224bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 225d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 226d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2275cbbce535744b89df5ecea95de21ee3733298260Romain Guy 228d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 229d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2305cbbce535744b89df5ecea95de21ee3733298260Romain Guy 231d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 232dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 233dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 234dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 235dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 236dda570201ac851dd85af3861f7e575721d3345daRomain Guy 237d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 238d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 239d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2405cbbce535744b89df5ecea95de21ee3733298260Romain Guy 241d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 242d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const Rect& clip = previous->getMappedClip(); 243d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 244bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 245dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 246dda570201ac851dd85af3861f7e575721d3345daRomain Guy 247d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Compute the correct texture coordinates for the FBO texture 248d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // The texture is currently as big as the window but drawn with 249d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // a quad of the appropriate size 250dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 251dda570201ac851dd85af3861f7e575721d3345daRomain Guy 252dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 253dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend, true); 254bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 255dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 256dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 257dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 258bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 259dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 260dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 261dda570201ac851dd85af3861f7e575721d3345daRomain Guy 262dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 263dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 264bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 265bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 266f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 267bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 268bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 269bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 270bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 271bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 272d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 273d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 274d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 275d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 276d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 277d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 278d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 279d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 280d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 282d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 283d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 284d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 285d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 286d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 287d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 288d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 289d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 290d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 291bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 292bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 293bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 294bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 295bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 298d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 299bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 300d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 301d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 302bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 303dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(right - left, bottom - top); 304dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = mLayerCache.get(size); 305dda570201ac851dd85af3861f7e575721d3345daRomain Guy 306dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Requesting layer %dx%d", size.width, size.height); 307dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 308dda570201ac851dd85af3861f7e575721d3345daRomain Guy 309dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!layer) { 310dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Creating new layer"); 311dda570201ac851dd85af3861f7e575721d3345daRomain Guy 312dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer = new Layer; 313dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->blend = true; 314dda570201ac851dd85af3861f7e575721d3345daRomain Guy 315dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Generate the FBO and attach the texture 316dda570201ac851dd85af3861f7e575721d3345daRomain Guy glGenFramebuffers(1, &layer->fbo); 317dda570201ac851dd85af3861f7e575721d3345daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 318bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 319dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Generate the texture in which the FBO will draw 320dda570201ac851dd85af3861f7e575721d3345daRomain Guy glGenTextures(1, &layer->texture); 321dda570201ac851dd85af3861f7e575721d3345daRomain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 3228ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 323dda570201ac851dd85af3861f7e575721d3345daRomain Guy // The FBO will not be scaled, so we can use lower quality filtering 324dda570201ac851dd85af3861f7e575721d3345daRomain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 325dda570201ac851dd85af3861f7e575721d3345daRomain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 326bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 327dda570201ac851dd85af3861f7e575721d3345daRomain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 328dda570201ac851dd85af3861f7e575721d3345daRomain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 329bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 330dda570201ac851dd85af3861f7e575721d3345daRomain Guy // TODO VERY IMPORTANT: Fix TextView to not call saveLayer() all the time 331bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 332dda570201ac851dd85af3861f7e575721d3345daRomain Guy const GLsizei width = right - left; 333dda570201ac851dd85af3861f7e575721d3345daRomain Guy const GLsizei height = bottom - top; 334bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 335dda570201ac851dd85af3861f7e575721d3345daRomain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); 336dda570201ac851dd85af3861f7e575721d3345daRomain Guy glBindTexture(GL_TEXTURE_2D, 0); 337bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 338dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Bind texture to FBO 339dda570201ac851dd85af3861f7e575721d3345daRomain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 340dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->texture, 0); 341bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 342dda570201ac851dd85af3861f7e575721d3345daRomain Guy GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); 343dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (status != GL_FRAMEBUFFER_COMPLETE) { 344dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD("Framebuffer incomplete (GL error code 0x%x)", status); 345d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 346dda570201ac851dd85af3861f7e575721d3345daRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 347dda570201ac851dd85af3861f7e575721d3345daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 348dda570201ac851dd85af3861f7e575721d3345daRomain Guy 349dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 350dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 351dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 352dda570201ac851dd85af3861f7e575721d3345daRomain Guy 353dda570201ac851dd85af3861f7e575721d3345daRomain Guy return false; 354dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 355dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 356dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Reusing layer"); 357dda570201ac851dd85af3861f7e575721d3345daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 358bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 359bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 360f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 361f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 362f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 363f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 364f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 365f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 366dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 367d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 368dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 369dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 370dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 371dda570201ac851dd85af3861f7e575721d3345daRomain Guy 372dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 373dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 374d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 375f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 376f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 377f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 378f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 379f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->clipRect.set(left, top, right, bottom); 380f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 381f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 382f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 383f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->flags = Snapshot::kFlagDirtyTransform | Snapshot::kFlagDirtyOrtho | 384f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Snapshot::kFlagClipSet; 385f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy memcpy(mSnapshot->orthoMatrix, mOrthoMatrix, sizeof(mOrthoMatrix)); 386f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 387f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 388f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mat4 ortho; 389f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy ortho.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 390f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy ortho.copyTo(mOrthoMatrix); 391f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 392d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 393bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 394bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 395bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 396f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 397f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 398f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 399f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 4007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 4017ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 402f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 403f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 404f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 4057ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 4067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 407f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 408f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 409f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 4107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 4117ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 412f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 413f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 414f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 4157ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 4167ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 417f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 418f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 419f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 4207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 421f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 422f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 423f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 4247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 4257ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 4267ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 427f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 428f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 429f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 430f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 431f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 432f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 433bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 4347ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const Rect& clip = mSnapshot->getMappedClip(); 435f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4369d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4379d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4389d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 4397ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSnapshot->clipRect; 440bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 441bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 442c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 443c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy /* 444c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * The documentation of quickReject() indicates that the specified rect 445c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * is transformed before being compared to the clip rect. However, the 446c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * clip rect is not stored transformed in the snapshot and can thus be 447c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * compared directly 448c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * 449c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * The following code can be used instead to performed a mapped comparison: 450c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * 451c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * mSnapshot->transform.mapRect(r); 452c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * const Rect& clip = mSnapshot->getMappedClip(); 453c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * return !clip.intersects(r); 454c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy */ 455c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 456c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 457c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 458c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 459bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom) { 4607ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool clipped = mSnapshot->clipRect.intersect(left, top, right, bottom); 4617ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4627ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagClipSet; 4637ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4647ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 4657ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return clipped; 466e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 467e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 468f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 469f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 470f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 471f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 472c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 473f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 474c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4758ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int alpha; 476c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy SkXfermode::Mode mode; 4778ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy getAlphaAndMode(paint, &alpha, &mode); 4788ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4798ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy drawTextureRect(left, top, left + texture->width, top + texture->height, texture->id, 4808ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy alpha / 255.0f, mode, texture->blend, true); 4818ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 483f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 484f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 485f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 486f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 487f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 488f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 489f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 490f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy int alpha; 491f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy SkXfermode::Mode mode; 492f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy getAlphaAndMode(paint, &alpha, &mode); 493f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 494f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture->id, 495f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy alpha / 255.0f, mode, texture->blend, true); 496f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 497f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4998ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 5008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 501f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 502f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 5038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 504c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy int alpha; 5058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy SkXfermode::Mode mode; 5068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy getAlphaAndMode(paint, &alpha, &mode); 507c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5088ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 5098ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 510c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5118ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 5128ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 5138ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 5148ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 515c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5168ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 5178ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5188ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture->id, 519c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy alpha / 255.0f, mode, texture->blend, true); 5208ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5218ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 522ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 523ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 52485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 525c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy const Rect& clip = mSnapshot->clipRect; 526026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode); 527c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5289d5316e3f56d138504565ff311145ac01621dff4Romain Guy 529bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 530026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 531026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 532026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 533026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 534026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 535026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 536026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 537026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 538026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 539026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 540026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 541026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (((color >> 24) & 0xFF) == 255) { 542026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 543026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 544026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 545026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 546c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5479d5316e3f56d138504565ff311145ac01621dff4Romain Guy 548026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 549026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color, SkXfermode::Mode mode) { 550026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 551026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool blend = alpha < 255 || mode != SkXfermode::kSrcOver_Mode; 552026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 553026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat a = alpha / 255.0f; 554026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat r = ((color >> 16) & 0xFF) / 255.0f; 555026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat g = ((color >> 8) & 0xFF) / 255.0f; 556026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat b = ((color ) & 0xFF) / 255.0f; 557026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 558026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (blend) { 559026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glEnable(GL_BLEND); 560026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glBlendFunc(gBlends[mode].src, gBlends[mode].dst); 561026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 5629d5316e3f56d138504565ff311145ac01621dff4Romain Guy 563c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.loadTranslate(left, top, 0.0f); 564c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 5659d5316e3f56d138504565ff311145ac01621dff4Romain Guy 566c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mDrawColorShader->use(&mOrthoMatrix[0], &mModelView.data[0], &mSnapshot->transform.data[0]); 5679d5316e3f56d138504565ff311145ac01621dff4Romain Guy 568c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy const GLvoid* p = &gDrawColorVertices[0].position[0]; 5699d5316e3f56d138504565ff311145ac01621dff4Romain Guy 570c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glEnableVertexAttribArray(mDrawColorShader->position); 571c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glVertexAttribPointer(mDrawColorShader->position, 2, GL_FLOAT, GL_FALSE, 572c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy gDrawColorVertexStride, p); 573c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glVertexAttrib4f(mDrawColorShader->color, r, g, b, a); 5749d5316e3f56d138504565ff311145ac01621dff4Romain Guy 575c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawColorVertexCount); 5769d5316e3f56d138504565ff311145ac01621dff4Romain Guy 577c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDisableVertexAttribArray(mDrawColorShader->position); 578026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 579026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (blend) { 580026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glDisable(GL_BLEND); 581026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 58285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 58385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 584bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 585c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, bool isPremultiplied) { 586bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 587bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 588bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 589bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mDrawTextureShader->use(&mOrthoMatrix[0], &mModelView.data[0], &mSnapshot->transform.data[0]); 590bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 591c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy if (blend || alpha < 1.0f || mode != SkXfermode::kSrcOver_Mode) { 592c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy GLenum sourceMode = gBlends[mode].src; 593c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 594c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy sourceMode = GL_SRC_ALPHA; 595c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy } 596d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 597c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy glEnable(GL_BLEND); 598c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy glBlendFunc(sourceMode, gBlends[mode].dst); 599c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy } 600bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 601bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 602bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 603c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy // TODO handle tiling and filtering here 604c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 605bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glActiveTexture(GL_TEXTURE0); 606bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glUniform1i(mDrawTextureShader->sampler, 0); 607bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 608026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLvoid* p = &mDrawTextureVertices[0].position[0]; 609026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLvoid* t = &mDrawTextureVertices[0].texture[0]; 610bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 611bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glEnableVertexAttribArray(mDrawTextureShader->position); 612bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttribPointer(mDrawTextureShader->position, 2, GL_FLOAT, GL_FALSE, 613bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy gDrawTextureVertexStride, p); 614bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 615bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glEnableVertexAttribArray(mDrawTextureShader->texCoords); 616bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttribPointer(mDrawTextureShader->texCoords, 2, GL_FLOAT, GL_FALSE, 617bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy gDrawTextureVertexStride, t); 618bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 619bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttrib4f(mDrawTextureShader->color, 1.0f, 1.0f, 1.0f, alpha); 620bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 621bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 622bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 623bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisableVertexAttribArray(mDrawTextureShader->position); 624bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisableVertexAttribArray(mDrawTextureShader->texCoords); 625bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 626bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glBindTexture(GL_TEXTURE_2D, 0); 627bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisable(GL_BLEND); 628bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 629bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 630026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 631026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[0].texture[0] = u1; 6328ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[0].texture[1] = v1; 633026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[1].texture[0] = u2; 6348ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[1].texture[1] = v1; 635026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[2].texture[0] = u1; 6368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[2].texture[1] = v2; 637026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[3].texture[0] = u2; 6388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[3].texture[1] = v2; 6398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 6408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 6418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 6428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 6438ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 6448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 6458ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 6468ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 6478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 6488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 6498ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 6508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 6518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 6528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 6538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 6548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 6558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 6568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 6578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 6588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 6598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 660026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 661026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 6629d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 663e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 664