OpenGLRenderer.cpp revision 079ba2c85b15e882629b8d188f5fbdb42f7f8eea
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 37121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// These properties are defined in mega-bytes 38121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size" 39121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size" 40121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 41dda570201ac851dd85af3861f7e575721d3345daRomain Guy#define DEFAULT_TEXTURE_CACHE_SIZE 20 42dda570201ac851dd85af3861f7e575721d3345daRomain Guy#define DEFAULT_LAYER_CACHE_SIZE 10 43f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy#define DEFAULT_PATCH_CACHE_SIZE 100 44dda570201ac851dd85af3861f7e575721d3345daRomain Guy 45121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// Converts a number of mega-bytes into bytes 46121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define MB(s) s * 1024 * 1024 47121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 48dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Generates simple and textured vertices 49bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define SV(x, y) { { x, y } } 50bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 519d5316e3f56d138504565ff311145ac01621dff4Romain Guy 529d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 549d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 559d5316e3f56d138504565ff311145ac01621dff4Romain Guy 56026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const SimpleVertex gDrawColorVertices[] = { 57bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 0.0f), 58bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 0.0f), 59bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 1.0f), 60bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 1.0f) 619d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; 62026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexStride = sizeof(SimpleVertex); 63026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexCount = 4; 649d5316e3f56d138504565ff311145ac01621dff4Romain Guy 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 67026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const TextureVertex gDrawTextureVertices[] = { 68c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 69c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 70c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 71c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 72bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexStride = sizeof(TextureVertex); 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexCount = 4; 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 86026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 87026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 88026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 89026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 90026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 91026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 92e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 93d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guystatic const GLint gTileModes[] = { 94d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_CLAMP_TO_EDGE, // == SkShader::kClamp_TileMode 95d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_REPEAT, // == SkShader::kRepeat_Mode 96d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_MIRRORED_REPEAT // == SkShader::kMirror_TileMode 97d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 98d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 99f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 100f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 101f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 103dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 10482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend(false), mLastSrcMode(GL_ZERO), mLastDstMode(GL_ZERO), 105dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 106f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), 107f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mPatchCache(DEFAULT_PATCH_CACHE_SIZE) { 10885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1099d5316e3f56d138504565ff311145ac01621dff4Romain Guy 110121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 111121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 112dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 113121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy mTextureCache.setMaxSize(MB(atoi(property))); 114dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 115dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default texture cache size of %dMB", DEFAULT_TEXTURE_CACHE_SIZE); 116dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 117dda570201ac851dd85af3861f7e575721d3345daRomain Guy 118dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 119dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 120dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.setMaxSize(MB(atoi(property))); 121dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 122dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default layer cache size of %dMB", DEFAULT_LAYER_CACHE_SIZE); 123121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 124121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 125d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawColorProgram = new DrawColorProgram; 126d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram = new DrawTextureProgram; 127d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = mDrawTextureProgram; 128d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 129d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = kShaderNone; 130d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileX = SkShader::kClamp_TileMode; 131d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileY = SkShader::kClamp_TileMode; 132d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = NULL; 133d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = NULL; 134026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 135026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy memcpy(mDrawTextureVertices, gDrawTextureVertices, sizeof(gDrawTextureVertices)); 136e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 137e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 13885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 13985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 140ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 141ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 142dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 1436926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy mPatchCache.clear(); 144e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 145e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 146f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 147f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 148f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 149f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 15085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 15108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 15208ae317c21ec3086b5017672bba87420cc38a407Romain Guy 153260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 154bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 155bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 156bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 157f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mFirstSnapshot.height = height; 158e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 159e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 16085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1617ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = &mFirstSnapshot; 1627ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 163f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 16408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 165bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 16608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 16708ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 168bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 16908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 170c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 171f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 172bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mSnapshot->clipRect.set(0.0f, 0.0f, mWidth, mHeight); 173bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 174bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 175f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 176f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 177f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 178f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 179bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1807ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 182bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 183bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1847ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 185bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 186bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 187bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 1887ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 189bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1907ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 1917ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 1927ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 193bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 194bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 1967ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 197bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1987ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 2017ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 2027ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 203bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 2057ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 208bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2117ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 212bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 214bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2157ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 216bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 217f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 218bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 219bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 221bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 222f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 223260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 224f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 225f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 226bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 227d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 228d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 229bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 230d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 231d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2325cbbce535744b89df5ecea95de21ee3733298260Romain Guy 233d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 234d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2355cbbce535744b89df5ecea95de21ee3733298260Romain Guy 236d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 237dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 238dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 239dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 240dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 241dda570201ac851dd85af3861f7e575721d3345daRomain Guy 242d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 243d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 244d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2455cbbce535744b89df5ecea95de21ee3733298260Romain Guy 246d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 247079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = previous->clipRect; 248d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 249bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 250dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 251dda570201ac851dd85af3861f7e575721d3345daRomain Guy 252d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Compute the correct texture coordinates for the FBO texture 253d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // The texture is currently as big as the window but drawn with 254d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // a quad of the appropriate size 255dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 256dda570201ac851dd85af3861f7e575721d3345daRomain Guy 257dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 258a979474f15b454c8e2963f239a3770e200bb227cRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 259bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 260dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 261f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // Failing to add the layer to the cache should happen only if the 262f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // layer is too large 263dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 264dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 265bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 266dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 267dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 268dda570201ac851dd85af3861f7e575721d3345daRomain Guy 269dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 270dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 271bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 272bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 273f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 274bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 275bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 276bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 277bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 278bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 279d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 280d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 282d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 283d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 284d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 285d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 286d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 287d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 288d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 289d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 290d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 291d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 293d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 294d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 298bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 299bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 300bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 301bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 302bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 303d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 304d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 305d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 306bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 307d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 308d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 309bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 310d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 311dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 312dda570201ac851dd85af3861f7e575721d3345daRomain Guy 313f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 314f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 315dda570201ac851dd85af3861f7e575721d3345daRomain Guy 316f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 317f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 318f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 319bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 320bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 321f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 322f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 323f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 324f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 325f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 326f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 327f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 328f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 329dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 330d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 331dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 332dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 333dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 334dda570201ac851dd85af3861f7e575721d3345daRomain Guy 335dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 336dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 337d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 338f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 339f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 340f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 341f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 342079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 343f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 344f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 345f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 346079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->flags = Snapshot::kFlagDirtyOrtho | Snapshot::kFlagClipSet; 347260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mSnapshot->orthoMatrix.load(mOrthoMatrix); 348f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 349f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 350260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 351f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 352d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 353bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 354bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 355bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 356f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 357f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 358f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 359f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3607ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 361f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 362f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 363f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3647ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 365f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 366f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 367f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3687ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 369f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 370f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3727ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 373f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 374f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 375f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3767ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 377f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 378f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3807ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3817ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 382f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 383f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 384f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 385f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 386f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 387f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 388bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 389079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 390f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 3919d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 3929d5316e3f56d138504565ff311145ac01621dff4Romain Guy 3939d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 394079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 395bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 396bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 397c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 398c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 399079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->transform.mapRect(r); 400c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 401c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 402c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 403079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 404079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4057ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 408079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 409e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 410e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 411f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 412f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 413f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 414f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 415c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4166926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4176926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4186926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4196926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4206926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4216926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4226926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 423f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4268ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 427f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 428f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 429f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 430f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 431f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 436f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 43782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 438f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 439f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 443f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4446926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4456926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4466926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 448f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4498ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 452c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 457c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 46082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 463ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 464ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 465deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 466deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4676926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4686926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4696926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4706926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 471f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 472f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 473f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 474f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 475f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 476f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 477f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 478fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 479fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 480f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 481f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 482f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 483a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 484a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 48516202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 486f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 487f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 48885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 489079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 4903d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 491c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 4929d5316e3f56d138504565ff311145ac01621dff4Romain Guy 493bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 4946926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4956926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4966926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4976926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 498026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 499026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 500026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 501026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 502026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 503026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 504026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 505026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 506026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 507026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 508026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 509d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 510026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 511026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 512026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 513026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 514c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5159d5316e3f56d138504565ff311145ac01621dff4Romain Guy 5166926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 517d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 518d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 519d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 520d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 521d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = OpenGLRenderer::kShaderNone; 522d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = false; 523d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileX = SkShader::kClamp_TileMode; 524d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileY = SkShader::kClamp_TileMode; 525d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 526d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 527d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::setupBitmapShader(SkBitmap* bitmap, SkShader::TileMode tileX, 528d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkShader::TileMode tileY, SkMatrix* matrix, bool hasAlpha) { 529d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = kShaderBitmap; 530d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = hasAlpha; 531d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = bitmap; 532d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileX = tileX; 533d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileY = tileY; 534d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = matrix; 535d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 536d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 537d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 5386926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 5396926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 5406926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 541026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 5423d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 543d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 544d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShader != kShaderNone) { 545d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 546d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 547d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 548d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 549026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 550d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 551d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 552d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 553d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 554d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 555d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy switch (mShader) { 556d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy case kShaderBitmap: 557d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawBitmapShader(left, top, right, bottom, a, mode); 558d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy return; 559d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy default: 560d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy break; 561d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 562026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 5636926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy // Pre-multiplication happens when setting the shader color 564d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy chooseBlending(alpha < 255 || mShaderBlend, mode); 5659d5316e3f56d138504565ff311145ac01621dff4Romain Guy 566c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.loadTranslate(left, top, 0.0f); 567c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 5689d5316e3f56d138504565ff311145ac01621dff4Romain Guy 569079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (!useProgram(mDrawColorProgram)) { 570d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLvoid* p = &gDrawColorVertices[0].position[0]; 571079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glVertexAttribPointer(mDrawColorProgram->position, 2, GL_FLOAT, GL_FALSE, 572d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy gDrawColorVertexStride, p); 573d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 574d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 5753d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy if (!ignoreTransform) { 576079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 5773d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } else { 5783d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy mat4 identity; 579079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, identity); 5803d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } 5819d5316e3f56d138504565ff311145ac01621dff4Romain Guy 582079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glUniform4f(mDrawColorProgram->color, r, g, b, a); 5839d5316e3f56d138504565ff311145ac01621dff4Romain Guy 584c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawColorVertexCount); 58582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 586026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 587d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::drawBitmapShader(float left, float top, float right, float bottom, 588d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float alpha, SkXfermode::Mode mode) { 589d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const Texture* texture = mTextureCache.get(mShaderBitmap); 590d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 591d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float width = texture->width; 592d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float height = texture->height; 593d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 594d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // This could be done in the vertex shader but we have only 4 vertices 595d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u1 = 0.0f; 596d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v1 = 0.0f; 597d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u2 = right - left; 598d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v2 = bottom - top; 599d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 600d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShaderMatrix) { 601d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkMatrix inverse; 602d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix->invert(&inverse); 603d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mat4 m(inverse); 604d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy Rect r(u1, v1, u2, v2); 605d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy m.mapRect(r); 606d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 607d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 = r.left; 608d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 = r.right; 609d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 = r.top; 610d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 = r.bottom; 611d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 612d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 613d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 /= width; 614d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 /= width; 615d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 /= height; 616d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 /= height; 617d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 618d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 619d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 620d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha, mode, texture->blend, 621d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 622d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 623d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 624d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 625d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 62682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 627a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 62882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 62982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 63082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 63182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 632a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 633a979474f15b454c8e2963f239a3770e200bb227cRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 63485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 63585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 636bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 637a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 638a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 639f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 640f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 641f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 642f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 643a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 644f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 645bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 646bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 647bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 648d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy useProgram(mDrawTextureProgram); 649d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 650bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 651a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 652bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 653d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // TODO: Only bind/set parameters when needed 654bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 655d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, gTileModes[mShaderTileX]); 656d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, gTileModes[mShaderTileY]); 657c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 658a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 659d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glUniform4f(mDrawTextureProgram->color, alpha, alpha, alpha, alpha); 660bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 661d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->position, 2, GL_FLOAT, GL_FALSE, 662f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, vertices); 663d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->texCoords, 2, GL_FLOAT, GL_FALSE, 664f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, texCoords); 665bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 666f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 667f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 668f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 669f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 670f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 671bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 672bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glBindTexture(GL_TEXTURE_2D, 0); 67382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 67482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 67582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 67682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // In theory we should not blend if the mode is Src, but it's rare enough 67782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // that it's not worth it 67882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 67982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 68082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 68182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 68282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 68382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 68482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 68582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 68682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 68782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 68882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 68982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 69082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 69182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 69282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 69382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 69482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 69582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 69682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 69782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 69882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 699bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 700bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 701d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guybool OpenGLRenderer::useProgram(const sp<Program>& program) { 702d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 703d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram->remove(); 704d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 705d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 7066926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 707260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 7086926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 709260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 710260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 711026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 71282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex* v = &mDrawTextureVertices[0]; 71382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 71482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 71582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 71682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 7178ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 7188ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 7198ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 7208ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 7218ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 7228ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 7238ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 7248ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 7258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 7268ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 7278ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 7288ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 7298ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 7308ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 7318ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 7328ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 7338ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 7348ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 7358ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 7368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 7378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 738026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 739026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 7409d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 741e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 742