OpenGLRenderer.cpp revision 7fbcc0492fca03857e3c45064f4aa040af817d55
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> 24694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <SkTypeface.h> 255cbbce535744b89df5ecea95de21ee3733298260Romain Guy 26121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#include <cutils/properties.h> 275cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include <utils/Log.h> 2885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 2985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include "OpenGLRenderer.h" 3051769a68a5cb34e9564740c6a854fcb93018789dRomain Guy#include "Properties.h" 31e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 32e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 339d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 349d5316e3f56d138504565ff311145ac01621dff4Romain Guy 359d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 369d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 379d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 389d5316e3f56d138504565ff311145ac01621dff4Romain Guy 39c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy#define DEFAULT_TEXTURE_CACHE_SIZE 20.0f 407fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy#define DEFAULT_LAYER_CACHE_SIZE 6.0f 417fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy#define DEFAULT_PATH_CACHE_SIZE 6.0f 42f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy#define DEFAULT_PATCH_CACHE_SIZE 100 43c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy#define DEFAULT_GRADIENT_CACHE_SIZE 0.5f 44dda570201ac851dd85af3861f7e575721d3345daRomain Guy 4506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#define REQUIRED_TEXTURE_UNITS_COUNT 3 4606f96e2652e4855b6520ad9dd70583677605b79aRomain 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 FV(x, y, u, v) { { x, y }, { u, v } } 529d5316e3f56d138504565ff311145ac01621dff4Romain Guy 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 549d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 559d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 569d5316e3f56d138504565ff311145ac01621dff4Romain Guy 57026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 58026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 59ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const TextureVertex gMeshVertices[] = { 60c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 61c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 62c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 63c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 64bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 65ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshStride = sizeof(TextureVertex); 66ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshCount = 4; 67026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 68889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy/** 69889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 70889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy */ 71889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystruct Blender { 72889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy SkXfermode::Mode mode; 73889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum src; 74889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum dst; 75889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy}; // struct Blender 76889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 86026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 87026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 88026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 89026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 90026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 91026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 92026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 93e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 94889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 9506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 9606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 9706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 98d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 99d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 100f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 101f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 103f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 104dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 10582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend(false), mLastSrcMode(GL_ZERO), mLastDstMode(GL_ZERO), 106dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 107f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), 108c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache(MB(DEFAULT_GRADIENT_CACHE_SIZE)), 1097fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mPathCache(MB(DEFAULT_PATH_CACHE_SIZE)), 110f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mPatchCache(DEFAULT_PATCH_CACHE_SIZE) { 11185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1129d5316e3f56d138504565ff311145ac01621dff4Romain Guy 113121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 114121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 115dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 116c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mTextureCache.setMaxSize(MB(atof(property))); 117dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 118c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default texture cache size of %.2fMB", DEFAULT_TEXTURE_CACHE_SIZE); 119dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 120dda570201ac851dd85af3861f7e575721d3345daRomain Guy 121dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 122dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 123c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mLayerCache.setMaxSize(MB(atof(property))); 124dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 125c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default layer cache size of %.2fMB", DEFAULT_LAYER_CACHE_SIZE); 126c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 127c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 128c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (property_get(PROPERTY_GRADIENT_CACHE_SIZE, property, NULL) > 0) { 129c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Setting gradient cache size to %sMB", property); 1307fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mGradientCache.setMaxSize(MB(atof(property))); 131c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } else { 132c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default gradient cache size of %.2fMB", DEFAULT_GRADIENT_CACHE_SIZE); 133121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 134121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 1357fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (property_get(PROPERTY_PATH_CACHE_SIZE, property, NULL) > 0) { 1367fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy LOGD(" Setting path cache size to %sMB", property); 1377fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mPathCache.setMaxSize(MB(atof(property))); 1387fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } else { 1397fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy LOGD(" Using default path cache size of %.2fMB", DEFAULT_PATH_CACHE_SIZE); 1407fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 1417fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 142889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mCurrentProgram = NULL; 14306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 144db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 145026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 146ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 147ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 148ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 149ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy 150ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy GLint maxTextureUnits; 151ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits); 152ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) { 153889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT); 154889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 155e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 156e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 15785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 15885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 159ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 160ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 161dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 162c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache.clear(); 1636926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy mPatchCache.clear(); 164e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 165e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 166f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 167f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 168f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 169f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 17085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 17108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 17208ae317c21ec3086b5017672bba87420cc38a407Romain Guy 173260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 174bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 175bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 176bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 177ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot->height = height; 178e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 179e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 18085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 181b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot = new Snapshot(mFirstSnapshot); 1827ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 183f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 18408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 185bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 18608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 18708ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 188bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 18908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 190c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 191f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 192b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 193bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 194bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 195f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 196f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 197f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 198f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 2007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 202bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 203bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 206bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 2117ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 214bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 215bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2167ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 217bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 2217ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 2227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 223bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 2257ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2267ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 227bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 228bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 229bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2307ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2317ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 232bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 233bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 234bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2357ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 236bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 237f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 238bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 239bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2407ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 241bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 242f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 243260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 244f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 245f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 246bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 247d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 248d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 249bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 250d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 251d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2525cbbce535744b89df5ecea95de21ee3733298260Romain Guy 253d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 254d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2555cbbce535744b89df5ecea95de21ee3733298260Romain Guy 256d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 257dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 258dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 259dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 260dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 261dda570201ac851dd85af3861f7e575721d3345daRomain Guy 262d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 263d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 264d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2655cbbce535744b89df5ecea95de21ee3733298260Romain Guy 266d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 267079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = previous->clipRect; 268d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 269bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 270dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 271dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 272dda570201ac851dd85af3861f7e575721d3345daRomain Guy 273dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 274a979474f15b454c8e2963f239a3770e200bb227cRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 275bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 276dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 277f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // Failing to add the layer to the cache should happen only if the 278f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // layer is too large 279dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 280dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 281bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 282dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 283dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 284dda570201ac851dd85af3861f7e575721d3345daRomain Guy 285dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 286dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 287bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 288bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 289f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 290bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 291bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 292bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 293bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 294bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 298d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 299d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 300d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 301d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 302d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 303d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 304d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 305d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 306d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 307d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 308d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 309d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 310d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 311d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 312d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 313d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 314bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 315bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 316bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 317bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 318bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 319d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 320d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 321d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 322bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 323d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 324d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 325d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 326dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 327dda570201ac851dd85af3861f7e575721d3345daRomain Guy 328f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 329f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 330dda570201ac851dd85af3861f7e575721d3345daRomain Guy 331f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 332f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 333f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 334bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 335bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 336f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 337f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 338f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 339f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 340f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 341f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 342f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 343f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 344dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 345d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 346dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 347dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 348dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 349dda570201ac851dd85af3861f7e575721d3345daRomain Guy 350dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 351dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 352d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 353f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 354f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 355f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 356f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 357079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 358f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 359f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 360f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 361079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->flags = Snapshot::kFlagDirtyOrtho | Snapshot::kFlagClipSet; 362260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mSnapshot->orthoMatrix.load(mOrthoMatrix); 363f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 364f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 365260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 366f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 367d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 368bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 369bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 370bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 372f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 373f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 374f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 376f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 377f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 378f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3797ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 380f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 381f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 382f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3837ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 384f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 385f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 386f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3877ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 388f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 389f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 390f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3917ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 392f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 393f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 394f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3957ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3967ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 397f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 398f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 399f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 400f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 401f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 402f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 403bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 404079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 405f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4069d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4079d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4089d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 409079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 410bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 411bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 412c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 413c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 414079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->transform.mapRect(r); 415c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 416c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 417c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 418079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 419079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4217ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 423079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 424e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 425e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 426f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 427f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 428f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 429f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 430c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4376926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 438f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4396926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 442f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 443f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 444f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 445f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 446f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4486926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4496926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4506926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 451f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 45282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 453f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 454f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 458f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4616926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4626926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 463f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 467c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 472c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4738ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 47582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4768ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4778ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 478ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 479ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 480deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 481deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4826926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4836926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4846926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4856926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 486f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 487f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 488f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 489f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 490f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 491f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 492f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 493fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 494fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 495f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 496f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 497f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 498a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 499a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 50016202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 501f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 502f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 50385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 504079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 5053d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 506c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5079d5316e3f56d138504565ff311145ac01621dff4Romain Guy 508bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5096926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5106926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5116926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5126926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 513026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 514026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 515026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 516026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 517026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 518026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 519026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 520026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 521026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 522026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 523026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 524d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 525026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 526026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 527026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 528026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 529c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5309d5316e3f56d138504565ff311145ac01621dff4Romain Guy 531e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 532e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 533e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 534e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 535e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 536e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 537e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float length; 538e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 539e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 540e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 541e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 542e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 543e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 544e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 545e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 546e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 547e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 548e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 549e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 550e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 551694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 552694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 553694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 554694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 555694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t color = paint->getColor(); 556694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat a = alpha / 255.0f; 557694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 558694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 559694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 560694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 561694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mModelView.loadIdentity(); 562694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 56306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 564db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Needs to be set prior to calling FontRenderer::getTexture() 565db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 56606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 567889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 568889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 569889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasAlpha8Texture = true; 57006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 57106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 57206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 573db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 574db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 575db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 576889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 577889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 578889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 579694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 580db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Text is always blended, no need to check the shader 581694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy chooseBlending(true, mode); 58206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(mFontRenderer.getTexture(), GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 58306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), textureUnit); 584889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 585889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 586889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 587694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 588694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Always premultiplied 589889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 590694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 59106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy textureUnit++; 59206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 59306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 59406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 59506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 596db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 597db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 598db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 59906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 60009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy // TODO: Implement scale properly 60109147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 60265ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk mFontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); 603e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy mFontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 604694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 605694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 606889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 607694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 608694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 6097fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 6107fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 6117fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 6127fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6137fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy PathTexture* texture = mPathCache.get(path, paint); 6147fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6157fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 6167fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 6177fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 6187fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6197fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 6207fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 6217fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6227fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6237fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6247fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6257fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Describe the required shaders 6267fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy ProgramDescription description; 6277fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy description.hasTexture = true; 6287fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy description.hasAlpha8Texture = true; 6297fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (mShader) { 6307fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mShader->describe(description, mExtensions); 6317fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 6327fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (mColorFilter) { 6337fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mColorFilter->describe(description, mExtensions); 6347fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 6357fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6367fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Build and use the appropriate shader 6377fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy useProgram(mProgramCache.get(description)); 6387fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6397fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Setup the blending mode 6407fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy chooseBlending(true, mode); 6417fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy bindTexture(texture->id, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 6427fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), textureUnit); 6437fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6447fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 6457fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glEnableVertexAttribArray(texCoordsSlot); 6467fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6477fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Setup attributes 6487fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 6497fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 6507fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 6517fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy gMeshStride, &mMeshVertices[0].texture[0]); 6527fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6537fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Setup uniforms 6547fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mModelView.loadTranslate(texture->left - texture->offset, 6557fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy texture->top - texture->offset, 0.0f); 6567fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mModelView.scale(texture->width, texture->height, 1.0f); 6577fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 6587fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6597fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 6607fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6617fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy textureUnit++; 6627fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Setup attributes and uniforms required by the shaders 6637fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (mShader) { 6647fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 6657fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 6667fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (mColorFilter) { 6677fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mColorFilter->setupProgram(mCurrentProgram); 6687fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 6697fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6707fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Draw the mesh 6717fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 6727fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6737fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glDisableVertexAttribArray(texCoordsSlot); 6747fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 6757fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6766926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 677d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 678d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 679d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 680d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 68106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 68206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 68306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 68406f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 68506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 68606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 68706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->set(&mTextureCache, &mGradientCache); 68806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 6897fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6907fac2e18339f765320d759e8d4c090f92431959eRomain Guy 691d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 692db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 693db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 694db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 695db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 696db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 697db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 698db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 699db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 700db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 701db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 702db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 703db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 7046926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 7056926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 7066926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 707026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 7083d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 709d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 71006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 711d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 712d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 713d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 714d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 715026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 716d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 717c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 718c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 719c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 720c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 72106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 7229d5316e3f56d138504565ff311145ac01621dff4Romain Guy 72306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup the blending mode 72406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy chooseBlending(alpha < 255 || (mShader && mShader->blend()), mode); 7259d5316e3f56d138504565ff311145ac01621dff4Romain Guy 72606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 727889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 72806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 72906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 730c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 731db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 732db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 733db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 734c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 73506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 736889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 737c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 73806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 739889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 740ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 741c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 74206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 743889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 744889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 74506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 74606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 747889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 74806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 74906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, identity); 750889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 75106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 752d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 75306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 75406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 75506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 756d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 757db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 758db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 759db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 760d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 76106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Draw the mesh 762889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 763d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 764d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 76582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 766a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 76782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 76882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 76982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 77082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 771a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 772ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 77385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 77485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 775bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 776a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 777a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 778ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 779f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 780f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 781f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 782a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 783f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 784889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 785889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 786db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 787db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 788db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 789889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 790bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 791bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 792bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 793889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 794889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 795bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 796a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 797889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 798889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 79906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 800889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), 0); 801c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 802a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 803889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform4f(mCurrentProgram->color, alpha, alpha, alpha, alpha); 804bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 805889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 806889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 807889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 808889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 809ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 810889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 811bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 812db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 813db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 814db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 815db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 816db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 817f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 818ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 819f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 820f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 821f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 822889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 82382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 82482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 82582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 82682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 82782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 82882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 82982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 83082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 83182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 83282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 83382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 83482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 83582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 83682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 83782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 83882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 83982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 84082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 84182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 84282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 84382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 84482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 84582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 84682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 847bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 848bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 849889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 850d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 851889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy if (mCurrentProgram != NULL) mCurrentProgram->remove(); 852d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 853d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 8546926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 855260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 8566926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 857260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 858260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 859026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 860ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 86182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 86282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 86382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 86482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 8658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 8668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 8688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 8698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 8708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 8718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 8728ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 8738ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 8748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8758ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 8768ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 8778ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 8788ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 8798ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 8808ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 8818ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 8828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 8838ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 8848ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 8858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 886026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 887026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 888889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 889889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 890ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 891a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 892a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 893a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 894a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 8959d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 896e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 897