OpenGLRenderer.cpp revision 8fb954263dd2f918ad339045cc6d82e346515599
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 441e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy#define DEFAULT_DROP_SHADOW_CACHE_SIZE 1.0f 45dda570201ac851dd85af3861f7e575721d3345daRomain Guy 4606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#define REQUIRED_TEXTURE_UNITS_COUNT 3 4706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 48121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// Converts a number of mega-bytes into bytes 49121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define MB(s) s * 1024 * 1024 50121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 51dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Generates simple and textured vertices 52bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy 549d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 559d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 569d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 579d5316e3f56d138504565ff311145ac01621dff4Romain Guy 58026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 59026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 60ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const TextureVertex gMeshVertices[] = { 61c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 62c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 63c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 64c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 65bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 66ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshStride = sizeof(TextureVertex); 67ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshCount = 4; 68026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 69889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy/** 70889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 71889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy */ 72889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystruct Blender { 73889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy SkXfermode::Mode mode; 74889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum src; 75889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum dst; 76889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy}; // struct Blender 77889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 86026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 87026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 88026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 89026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 90026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 91026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 92026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 93026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 94e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 95889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 9606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 9706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 9806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 99d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 100d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 101f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 103f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 104f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 105dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 10682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend(false), mLastSrcMode(GL_ZERO), mLastDstMode(GL_ZERO), 107dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 108f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), 109c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache(MB(DEFAULT_GRADIENT_CACHE_SIZE)), 1107fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mPathCache(MB(DEFAULT_PATH_CACHE_SIZE)), 1111e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mPatchCache(DEFAULT_PATCH_CACHE_SIZE), 1121e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mDropShadowCache(MB(DEFAULT_DROP_SHADOW_CACHE_SIZE)) { 11385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1149d5316e3f56d138504565ff311145ac01621dff4Romain Guy 115121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 116121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 117dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 118c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mTextureCache.setMaxSize(MB(atof(property))); 119dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 120c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default texture cache size of %.2fMB", DEFAULT_TEXTURE_CACHE_SIZE); 121dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 122dda570201ac851dd85af3861f7e575721d3345daRomain Guy 123dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 124dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 125c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mLayerCache.setMaxSize(MB(atof(property))); 126dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 127c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default layer cache size of %.2fMB", DEFAULT_LAYER_CACHE_SIZE); 128c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 129c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 130c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (property_get(PROPERTY_GRADIENT_CACHE_SIZE, property, NULL) > 0) { 131c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Setting gradient cache size to %sMB", property); 1327fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mGradientCache.setMaxSize(MB(atof(property))); 133c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } else { 134c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default gradient cache size of %.2fMB", DEFAULT_GRADIENT_CACHE_SIZE); 135121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 136121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 1377fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy if (property_get(PROPERTY_PATH_CACHE_SIZE, property, NULL) > 0) { 1387fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy LOGD(" Setting path cache size to %sMB", property); 1397fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy mPathCache.setMaxSize(MB(atof(property))); 1407fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } else { 1417fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy LOGD(" Using default path cache size of %.2fMB", DEFAULT_PATH_CACHE_SIZE); 1427fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy } 1437fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 1441e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (property_get(PROPERTY_DROP_SHADOW_CACHE_SIZE, property, NULL) > 0) { 1451e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy LOGD(" Setting drop shadow cache size to %sMB", property); 1461e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mDropShadowCache.setMaxSize(MB(atof(property))); 1471e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } else { 1481e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy LOGD(" Using default drop shadow cache size of %.2fMB", DEFAULT_DROP_SHADOW_CACHE_SIZE); 1491e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 1501e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mDropShadowCache.setFontRenderer(mFontRenderer); 1511e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 152889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mCurrentProgram = NULL; 15306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 154db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1551e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 156026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 157ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 158ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 159ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 160ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy 161ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy GLint maxTextureUnits; 162ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits); 163ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) { 164889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT); 165889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 166e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 167e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 16885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 16985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 170ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 171ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 172dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 173c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache.clear(); 174959c91f7f7b4f921d341264f5b4ef54e702a0df0Romain Guy mPathCache.clear(); 1756926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy mPatchCache.clear(); 176959c91f7f7b4f921d341264f5b4ef54e702a0df0Romain Guy mProgramCache.clear(); 1771e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mDropShadowCache.clear(); 178e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 179e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 180f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 181f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 182f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 183f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 18485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 18508ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 186260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 187bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 188bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 189bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 190ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot->height = height; 1911d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy mFirstSnapshot->viewport.set(0, 0, width, height); 192e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 193e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 19485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 195b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot = new Snapshot(mFirstSnapshot); 1968fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 197f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 19808ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 20008ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 20108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 202bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 20308ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 204c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 205f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 206b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 208bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 209f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 210f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 211f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 212f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 2147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 215bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 216bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 217bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 221bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2228fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (mSaveCount > 1 && restoreSnapshot()) { 2237ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 225bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 226bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 227bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2288fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 229bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2307ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 231bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2328fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2337ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 2347ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 235bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2367ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 2377ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2387ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 239bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 240bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 241bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2427ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2438fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 244bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 245bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 246bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2477ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 248bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 249f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 250bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 251bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2527ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 253bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 254f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 2551d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect& r = previous->viewport; 2561d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 257260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 258f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 259f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 260bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 261d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 262d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 263bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2648fb954263dd2f918ad339045cc6d82e346515599Romain Guy bool skip = mSnapshot->skip; 2658fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (!skip) { 2668fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount--; 2678fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 268d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 2695cbbce535744b89df5ecea95de21ee3733298260Romain Guy 2708fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (!skip) { 2718fb954263dd2f918ad339045cc6d82e346515599Romain Guy return restoreClip; 2728fb954263dd2f918ad339045cc6d82e346515599Romain Guy } else { 2738fb954263dd2f918ad339045cc6d82e346515599Romain Guy bool restorePreviousClip = restoreSnapshot(); 2748fb954263dd2f918ad339045cc6d82e346515599Romain Guy return restoreClip || restorePreviousClip; 2758fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 276d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2775cbbce535744b89df5ecea95de21ee3733298260Romain Guy 278f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 279bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 280bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 281bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 282bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 283bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 284d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 285d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 286d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 287d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 288d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 289d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 290d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 291d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 293d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 294d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 298d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 299d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 300d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 301d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 302d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 303bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 304bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 305bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 306bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 307bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 308d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 309d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 310d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 311bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 312d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 313d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 314d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 315dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 316dda570201ac851dd85af3861f7e575721d3345daRomain Guy 317f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 318f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 319dda570201ac851dd85af3861f7e575721d3345daRomain Guy 320f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 321f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 322f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 323bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 324bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 325f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 326f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 327f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 328f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 329f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 330f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 331f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 332f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 333dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 334dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 335dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 336dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3378fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 3388fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 339dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 340dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 341d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 342f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 343f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 3448fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount--; 3451d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3468fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSnapshot->skip = true; 347f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 348079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 3491d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy mSnapshot->viewport.set(0.0f, 0.0f, right - left, bottom - top); 350f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 3511d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 352f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 353f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 354079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->flags = Snapshot::kFlagDirtyOrtho | Snapshot::kFlagClipSet; 355260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mSnapshot->orthoMatrix.load(mOrthoMatrix); 356f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 357f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 3581d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glViewport(0, 0, right - left, bottom - top); 3591d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Don't flip the FBO, it will get flipped when drawing back to the framebuffer 3601d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, 0.0f, bottom - top, -1.0f, 1.0f); 361f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 362d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 363bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 364bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3651d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 3661d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 3671d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 3681d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 3691d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3701d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3711d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Unbind current FBO and restore previous one 3721d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 3731d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 3741d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3751d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Restore the clip from the previous snapshot 3761d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& clip = previous->clipRect; 3771d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 3781d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3791d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 3801d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 3811d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3821d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 3831d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 3841d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3851d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 3861d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Failing to add the layer to the cache should happen only if the 3871d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // layer is too large 3881d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!mLayerCache.put(size, layer)) { 3891d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 3901d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3911d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteFramebuffers(1, &layer->fbo); 3921d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 3931d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3941d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 3951d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3961d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 3971d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 398bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 399f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 400f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 401f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 402f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 4037ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 404f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 405f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 406f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 4077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 408f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 409f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 410f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 4117ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 412f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 413f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 414f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 4157ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 416f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 417f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 418f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 4197ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 420f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 421f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 422f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 4237ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 4247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 425f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 426f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 427f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 428f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 429f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 430f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 431bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 432079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 433f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4349d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4359d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4369d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 437079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 438bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 439bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 440c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 4411d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 4421d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy mSnapshot->transform.mapRect(r); 443c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 444c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 445c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 446079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 447079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4487ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4497ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4507ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 451079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 452e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 453e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 454f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 455f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 456f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 457f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 458c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4616926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4626926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4636926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4646926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4656926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 46661c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 467f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4689cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 46922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 47022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 4716926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4728ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4738ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 474f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 475f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 476f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 477f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 478f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4796926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4806926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4816926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4826926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 48361c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 484f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4859cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 48622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 48722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 48882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 489f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 490f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4918ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4928ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4938ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 494f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4956926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4966926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4976926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4986926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 49961c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 500f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 5019cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 50222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 5038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 5058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 506c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 5088ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 5098ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 5108ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 511c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5128ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 5138ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 51482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 5158ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5168ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 517ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 518ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 519deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 520deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 5216926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5226926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5236926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 52561c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 526f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 5279cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 52822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 529f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 530f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 531f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 532f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 533f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 534f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 535fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 536fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 537f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 538f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 539f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 540a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 541a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 54216202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 543f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 544f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 54585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 546079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 5473d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 548c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5499d5316e3f56d138504565ff311145ac01621dff4Romain Guy 550bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5546926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 555026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 556026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 557026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 558026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 559026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 560026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 561026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 562026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 563026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 564026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 565026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 566d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 567026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 568026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 569026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 570026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 571c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5729d5316e3f56d138504565ff311145ac01621dff4Romain Guy 573e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 574e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 575e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 576e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 577e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 578e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 579a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 580e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 581e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 582e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 583e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 584e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 585e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 586e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 587e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 588e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 589e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 590e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 591e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 592e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 593694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 594694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 595694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 596694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5971e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mFontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); 5981e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 5991e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 6001e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const ShadowTexture* shadow = mDropShadowCache.get(paint, text, bytesCount, 6011e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 6021e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 6030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupShadow(shadow, x, y, mode); 6050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 6070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 6080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDisableVertexAttribArray(mCurrentProgram->getAttrib("texCoords")); 6091e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 6101e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 611694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t color = paint->getColor(); 612694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat a = alpha / 255.0f; 613694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 614694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 615694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 616694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 61706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 618db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 61906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 6200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(mFontRenderer.getTexture(), 0, 0, textureUnit, x, y, r, g, b, a, 6210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mode, false, true); 62206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 62309147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 624e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy mFontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 625694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 626694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 6270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDisableVertexAttribArray(mCurrentProgram->getAttrib("texCoords")); 628a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 6290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 630694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 631694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 6327fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 6337fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 6347fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 6357fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 63622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const PathTexture* texture = mPathCache.get(path, paint); 6379cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 63822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 6397fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6407fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 6417fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 6427fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 6437fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6447fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 6457fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 6467fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6477fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6487fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6497fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6501e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const float x = texture->left - texture->offset; 6511e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const float y = texture->top - texture->offset; 6520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 6540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 6560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 6570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDisableVertexAttribArray(mCurrentProgram->getAttrib("texCoords")); 6587fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 6597fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 661d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 662d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 663d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 664d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 66506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 66606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 66706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 66806f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 66906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 67006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 67106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->set(&mTextureCache, &mGradientCache); 67206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 6737fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6747fac2e18339f765320d759e8d4c090f92431959eRomain Guy 675d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 676db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 677db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 678db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 679db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 680db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 681db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 682db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 683db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 684db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 685db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 686db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 687db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 6881e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 6891e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 6901e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6911e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 6921e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 6931e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 6941e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6951e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 6961e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 6971e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 6981e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 6991e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 7001e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 7011e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 7021e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 7031e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 7046926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 7056926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 7066926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 7070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 7080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode) { 7090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 7100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 7110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat a = ((mShadowColor >> 24) & 0xFF) / 255.0f; 7130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 7140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 7150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 7160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 7180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 7190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 7220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 7230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 7240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 7250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy x, y, r, g, b, a, mode, transforms, applyFilters); 7260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 7290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 7300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 7310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 7320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 7330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 7340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 7350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 7380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->describe(description, mExtensions); 7390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 7410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->describe(description, mExtensions); 7420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 7460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy useProgram(mProgramCache.get(description)); 7470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup the blending mode 7490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy chooseBlending(true, mode); 7500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 7510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), textureUnit); 7520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 7540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 7550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes 7570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 7580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].position[0]); 7590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 7600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].texture[0]); 7610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 7630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 7640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 7650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 7660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 7670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 7680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 7700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 7710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 7730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 7750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 7760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 7770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 7790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->setupProgram(mCurrentProgram); 7800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 7850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 7860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 7870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 7890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 7900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 7910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 7920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 7930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 7940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 7950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 7960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 7970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 8000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 8010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 8020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 8030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 8050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 8060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 8080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 8120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float textSize = paint->getTextSize(); 8130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float height = textSize * kStdUnderline_Thickness; 8140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float left = x - offsetX; 8160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 8170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float right = left + underlineWidth; 8180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float bottom = 0.0f; 8190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 8210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 8220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 8270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 8280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 8340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 835026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 8363d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 837d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 83806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 839d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 840d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 841d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 842d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 843026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 844d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 845c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 846c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 847c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 848c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 84906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 8509d5316e3f56d138504565ff311145ac01621dff4Romain Guy 85106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup the blending mode 85206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy chooseBlending(alpha < 255 || (mShader && mShader->blend()), mode); 8539d5316e3f56d138504565ff311145ac01621dff4Romain Guy 85406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 855889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 85606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 85706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 858c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 859db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 860db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 861db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 862c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 86306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 864889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 865c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 86606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 867889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 868ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 869c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 87006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 871889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 872889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 87306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 87406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 875889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 87606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 87706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, identity); 878889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 87906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 880d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 88106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 88206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 88306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 884d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 885db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 886db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 887db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 888d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 88906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Draw the mesh 890889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 891d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 892d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 89382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 894a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 89582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 89682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 89782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 89882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 899a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 900ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 90185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 90285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 903bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 904a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 905a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 906ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 907f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 908f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 909f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 910a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 911f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 912889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 913889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 914db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 915db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 916db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 917889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 918bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 919bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 920bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 921889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 922889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 923bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 924a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 925889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 926889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 92706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 928889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), 0); 929c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 930a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 931889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform4f(mCurrentProgram->color, alpha, alpha, alpha, alpha); 932bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 933889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 934889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 935889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 936889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 937ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 938889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 939bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 940db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 941db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 942db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 943db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 944db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 945f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 946ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 947f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 948f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 949f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 950889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 95182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 95282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 95382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 95482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 95582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 95682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 95782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 95882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 95982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 96082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 96182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 96282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 96382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 96482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 96582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 96682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 96782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 96882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 96982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 97082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 97182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 97282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 97382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 97482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 975bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 976bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 977889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 978d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 979889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy if (mCurrentProgram != NULL) mCurrentProgram->remove(); 980d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 981d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 9826926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 983260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 9846926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 985260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 986260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 987026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 988ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 98982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 99082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 99182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 99282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 9938ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 9948ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9958ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 9968ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 9978ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 9988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 9998ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 10008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 10018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 10028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 10038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 10048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 10058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 10068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 10078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 10088ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 10098ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 10108ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 10118ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 10128ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 10138ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1014026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1015026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1016889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 1017889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 1018ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 1019a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 1020a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 1021a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1022a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 10239d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1024e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1025