OpenGLRenderer.cpp revision a674ab74e359ac73b4c4dd6b1a3a771836ac7e40
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 43861c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 439f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4409cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 44122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 44222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 4436926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4458ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 446f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 447f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 448f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 449f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 450f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4546926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 45561c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 456f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4579cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 45822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 45922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 46082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 461f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 462f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 466f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4676926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4686926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4696926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4706926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 47161c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 472f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4739cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 47422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 4758ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4768ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4778ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 478c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4798ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4808ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4818ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 483c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4848ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 48682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4878ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4888ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 489ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 490ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 491deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 492deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4936926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4946926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4956926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4966926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 49761c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 498f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 4999cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 50022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 501f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 502f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 503f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 504f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 505f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 506f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 507fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 508fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 509f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 510f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 511f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 512a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 513a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 51416202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 515f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 516f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 51785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 518079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 5193d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 520c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5219d5316e3f56d138504565ff311145ac01621dff4Romain Guy 522bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5236926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5256926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5266926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 527026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 528026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 529026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 530026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 531026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 532026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 533026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 534026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 535026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 536026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 537026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 538d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 539026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 540026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 541026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 542026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 543c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5449d5316e3f56d138504565ff311145ac01621dff4Romain Guy 545a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 546a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 547a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 548a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 549e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 550e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 551e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 552e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 553e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 554e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 555a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 556e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 557e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 558e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 559e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 560e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 561e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 562e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 563e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 564e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 565e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 566e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 567e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 568e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 569694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 570694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 571694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 572694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 573694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t color = paint->getColor(); 574694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat a = alpha / 255.0f; 575694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 576694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 577694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 578694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 579694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mModelView.loadIdentity(); 580694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 58106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 582db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Needs to be set prior to calling FontRenderer::getTexture() 583db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 58406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 585889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 586889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 587889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasAlpha8Texture = true; 58806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 58906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 59006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 591db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 592db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 593db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 594889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 595889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 596889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 597694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 598db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Text is always blended, no need to check the shader 599694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy chooseBlending(true, mode); 60006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(mFontRenderer.getTexture(), GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 60106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), textureUnit); 602889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 603889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 604889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 605694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 606694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Always premultiplied 607889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 608694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 60906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy textureUnit++; 61006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 61106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 61206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 61306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 614db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 615db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 616db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 61706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 61809147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 61965ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk mFontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); 620e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy mFontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 621694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 622694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 623889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 624a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 625a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy // Handle underline and strike-through 626a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy uint32_t flags = paint->getFlags(); 627a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 628a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float underlineWidth = length; 629a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy // If length is > 0.0f, we already measured the text for the text alignment 630a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy if (length <= 0.0f) { 631a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy underlineWidth = paint->measureText(text, bytesCount); 632a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy } 633a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 634a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float offsetX = 0; 635a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy switch (paint->getTextAlign()) { 636a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy case SkPaint::kCenter_Align: 637a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy offsetX = underlineWidth * 0.5f; 638a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy break; 639a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy case SkPaint::kRight_Align: 640a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy offsetX = underlineWidth; 641a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy break; 642a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy default: 643a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy break; 644a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy } 645a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 646a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy if (underlineWidth > 0.0f) { 647a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float textSize = paint->getTextSize(); 648a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float height = textSize * kStdUnderline_Thickness; 649a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 650a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float left = x - offsetX; 651a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float top = 0.0f; 652a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float right = left + underlineWidth; 653a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float bottom = 0.0f; 654a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 655a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy if (flags & SkPaint::kUnderlineText_Flag) { 656a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy top = y + textSize * kStdUnderline_Offset; 657a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy bottom = top + height; 658a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy drawRect(left, top, right, bottom, paint); 659a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy } 660a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 661a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 662a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy top = y + textSize * kStdStrikeThru_Offset; 663a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy bottom = top + height; 664a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy drawRect(left, top, right, bottom, paint); 665a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy } 666a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy } 667a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy } 668694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 669694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 6707fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 6717fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 6727fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 6737fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 67422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const PathTexture* texture = mPathCache.get(path, paint); 6759cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 67622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 6777fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6787fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 6797fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 6807fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 6817fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6827fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 6837fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 6847fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6857fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6867fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6877fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6887fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Describe the required shaders 6897fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy ProgramDescription description; 6907fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy description.hasTexture = true; 6917fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy description.hasAlpha8Texture = true; 6927fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (mShader) { 6937fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mShader->describe(description, mExtensions); 6947fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 6957fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (mColorFilter) { 6967fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mColorFilter->describe(description, mExtensions); 6977fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 6987fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6997fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Build and use the appropriate shader 7007fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy useProgram(mProgramCache.get(description)); 7017fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7027fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Setup the blending mode 7037fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy chooseBlending(true, mode); 7047fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy bindTexture(texture->id, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 7057fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), textureUnit); 7067fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7077fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 7087fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glEnableVertexAttribArray(texCoordsSlot); 7097fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7107fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Setup attributes 7117fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 7127fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 7137fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 7147fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy gMeshStride, &mMeshVertices[0].texture[0]); 7157fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7167fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Setup uniforms 7177fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mModelView.loadTranslate(texture->left - texture->offset, 7187fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy texture->top - texture->offset, 0.0f); 7197fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mModelView.scale(texture->width, texture->height, 1.0f); 7207fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 7217fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7227fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 7237fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7247fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy textureUnit++; 7257fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Setup attributes and uniforms required by the shaders 7267fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (mShader) { 7277fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 7287fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 7297fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (mColorFilter) { 7307fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mColorFilter->setupProgram(mCurrentProgram); 7317fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 7327fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7337fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy // Draw the mesh 7347fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 7357fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7367fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glDisableVertexAttribArray(texCoordsSlot); 7377fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 7387fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7396926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 740d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 741d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 742d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 743d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 74406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 74506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 74606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 74706f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 74806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 74906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 75006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->set(&mTextureCache, &mGradientCache); 75106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 7527fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 7537fac2e18339f765320d759e8d4c090f92431959eRomain Guy 754d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 755db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 756db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 757db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 758db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 759db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 760db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 761db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 762db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 763db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 764db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 765db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 766db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 7676926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 7686926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 7696926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 770026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 7713d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 772d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 77306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 774d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 775d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 776d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 777d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 778026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 779d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 780c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 781c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 782c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 783c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 78406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 7859d5316e3f56d138504565ff311145ac01621dff4Romain Guy 78606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup the blending mode 78706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy chooseBlending(alpha < 255 || (mShader && mShader->blend()), mode); 7889d5316e3f56d138504565ff311145ac01621dff4Romain Guy 78906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 790889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 79106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 79206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 793c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 794db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 795db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 796db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 797c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 79806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 799889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 800c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 80106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 802889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 803ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 804c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 80506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 806889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 807889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 80806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 80906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 810889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 81106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 81206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, identity); 813889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 81406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 815d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 81606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 81706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 81806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 819d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 820db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 821db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 822db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 823d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 82406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Draw the mesh 825889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 826d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 827d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 82882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 829a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 83082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 83182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 83282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 83382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 834a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 835ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 83685bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 83785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 838bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 839a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 840a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 841ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 842f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 843f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 844f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 845a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 846f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 847889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 848889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 849db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 850db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 851db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 852889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 853bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 854bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 855bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 856889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 857889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 858bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 859a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 860889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 861889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 86206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 863889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), 0); 864c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 865a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 866889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform4f(mCurrentProgram->color, alpha, alpha, alpha, alpha); 867bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 868889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 869889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 870889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 871889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 872ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 873889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 874bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 875db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 876db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 877db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 878db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 879db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 880f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 881ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 882f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 883f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 884f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 885889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 88682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 88782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 88882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 88982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 89082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 89182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 89282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 89382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 89482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 89582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 89682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 89782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 89882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 89982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 90082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 90182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 90282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 90382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 90482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 90582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 90682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 90782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 90882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 90982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 910bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 911bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 912889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 913d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 914889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy if (mCurrentProgram != NULL) mCurrentProgram->remove(); 915d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 916d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 9176926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 918260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 9196926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 920260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 921260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 922026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 923ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 92482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 92582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 92682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 92782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 9288ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 9298ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9308ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 9318ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 9328ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 9338ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 9348ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 9358ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 9368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 9378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 9398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 9408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 9418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 9428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 9438ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 9448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 9458ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 9468ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 9478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 9488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 949026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 950026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 951889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 952889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 953ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 954a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 955a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 956a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 957a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 9589d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 959e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 960