OpenGLRenderer.cpp revision 8b55f377655d13a445b08a0a8ed09b6e95c752b0
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 448b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy#define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f 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() { 2222542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 2232542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 225bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 226bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 227bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2288fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 229bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2308fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2312542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2327ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 233bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 234bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 235bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2367ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2378fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 238bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 239bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 240bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2417ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 242bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 243f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 244bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 245bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2467ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 247bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 248f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 2491d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect& r = previous->viewport; 2501d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 251260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 252f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 253f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 2548b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2558b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2568b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 257bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 258d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 259d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 260bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2612542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 2622542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setScissorFromClip(); 2638fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2642542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2652542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 266d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2675cbbce535744b89df5ecea95de21ee3733298260Romain Guy 268f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 269bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 270bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 271bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 272bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 273bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 274d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 275d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 276d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 277d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 278d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 279d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 280d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 282d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 283d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 284d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 285d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 286d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 287d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 288d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 289d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 2908b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (alpha > 0 && !mSnapshot->invisible) { 2918b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 2928b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2938b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot->invisible = true; 2948b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 297bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 298bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 299bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 300bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 301bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 3028b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (alpha > 0 && !mSnapshot->invisible) { 3038b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 3048b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 3058b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot->invisible = true; 3068b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 307d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 308d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 309bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 310d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 311d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 312d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 313dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 314dda570201ac851dd85af3861f7e575721d3345daRomain Guy 315f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 316f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 317dda570201ac851dd85af3861f7e575721d3345daRomain Guy 318f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 319f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 320f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 321bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 322bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 323f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 324f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 325f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 326f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 327f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 328f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 329f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 330f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 331dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 332dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 333dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 334dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3358fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 3368fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 337dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 338dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 3392542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->transform.loadTranslate(-left, -top, 0.0f); 3402542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 3412542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->viewport.set(0.0f, 0.0f, right - left, bottom - top); 3422542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->height = bottom - top; 3432542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 3442542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 3451d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 346f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 347f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 348f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 3491d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glViewport(0, 0, right - left, bottom - top); 3508b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, bottom - top, 0.0f, -1.0f, 1.0f); 351f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 352d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 353bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 354bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3551d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 3561d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 3571d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 3581d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 3591d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3601d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3611d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Unbind current FBO and restore previous one 3621d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 3631d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 3641d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3651d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Restore the clip from the previous snapshot 3661d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& clip = previous->clipRect; 3671d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 3681d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3691d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 3701d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 3711d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3728b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy // FBOs are already drawn with a top-left origin, don't flip the texture 3738b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f); 3748b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3751d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 3761d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 3771d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3788b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 3798b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3801d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 3811d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Failing to add the layer to the cache should happen only if the 3821d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // layer is too large 3831d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!mLayerCache.put(size, layer)) { 3841d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 3851d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3861d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteFramebuffers(1, &layer->fbo); 3871d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 3881d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3891d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 3901d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3911d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 3921d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 393bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 394f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 395f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 396f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 397f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3987ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 399f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 400f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 401f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 4027ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 403f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 404f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 405f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 4067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 407f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 408f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 409f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 4107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 411f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 412f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 413f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 4147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 415f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 416f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 417f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 4187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 4197ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 420f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 421f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 422f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 423f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 424f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 425f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 426bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 427079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 428f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4299d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4309d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4319d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 432079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 433bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 434bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 435c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 4368b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return true; 4378b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 4381d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 4391d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy mSnapshot->transform.mapRect(r); 440c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 441c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 442c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 443079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 444079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4457ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4467ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4477ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 448079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 449e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 450e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 451f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 452f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 453f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 454f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 455c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4566926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4576926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4586926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4616926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4626926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 46361c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 464f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4659cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 46622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 46722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 4686926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 471f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 472f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 473f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 474f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 475f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4766926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4776926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4786926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4796926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 48061c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 481f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4829cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 48322158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 48422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 48582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 486f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 487f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4888ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4898ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4908ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 491f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4926926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4936926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4946926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4956926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 49661c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 497f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4989cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 49922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 5008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 5028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 503c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 5058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 5068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 5078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 508c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5098ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 5108ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 51182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 5128ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5138ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 514ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 515ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 516deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 517deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 5186926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5196926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5206926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5216926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 52261c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 523f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 5249cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 52522158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 526f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 527f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 528f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 529f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 530f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 531f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 532fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 533fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 534f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 535f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 536f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 537a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 538a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 53916202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 540f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 541f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 54285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 5438b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return; 544079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 5453d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 546c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5479d5316e3f56d138504565ff311145ac01621dff4Romain Guy 548bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5496926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5506926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 553026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 554026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 555026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 556026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 557026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 558026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 559026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 560026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 561026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 562026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 563026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 564d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 565026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 566026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 567026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 568026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 569c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5709d5316e3f56d138504565ff311145ac01621dff4Romain Guy 571e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 572e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 5738b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible || text == NULL || count == 0 || 5748b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 575e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 576e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 577e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 578a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 579e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 580e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 581e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 582e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 583e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 584e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 585e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 586e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 587e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 588e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 589e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 590e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 591e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 592694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 593694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 594694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 595694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5962542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 5972542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 5982542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 5992542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6002542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6012542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 6021e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mFontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); 6031e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 6041e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 6051e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const ShadowTexture* shadow = mDropShadowCache.get(paint, text, bytesCount, 6061e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 6071e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 6080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6092542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setupShadow(shadow, x, y, mode, a); 6100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 6120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 6130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDisableVertexAttribArray(mCurrentProgram->getAttrib("texCoords")); 6141e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 6151e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 61606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 617db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 61806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 6190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(mFontRenderer.getTexture(), 0, 0, textureUnit, x, y, r, g, b, a, 6200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mode, false, true); 62106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 62209147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 623e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy mFontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 624694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 625694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 6260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDisableVertexAttribArray(mCurrentProgram->getAttrib("texCoords")); 627a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 6280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 629694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 630694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 6317fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 6328b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return; 6338b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6347fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 6357fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 6367fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 63722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const PathTexture* texture = mPathCache.get(path, paint); 6389cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 63922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 6407fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6418b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 6428b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 6438b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6448b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 6458b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 6468b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 6478b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6487fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 6497fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 6507fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 6517fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6527fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 6537fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 6547fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6557fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6567fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6577fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 6590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 6610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 6620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDisableVertexAttribArray(mCurrentProgram->getAttrib("texCoords")); 6637fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 6647fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6656926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 666d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 667d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 668d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 669d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 67006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 67106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 67206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 67306f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 67406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 67506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 67606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->set(&mTextureCache, &mGradientCache); 67706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 6787fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6797fac2e18339f765320d759e8d4c090f92431959eRomain Guy 680d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 681db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 682db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 683db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 684db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 685db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 686db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 687db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 688db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 689db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 690db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 691db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 692db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 6931e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 6941e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 6951e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6961e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 6971e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 6981e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 6991e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 7001e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 7011e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 7021e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 7031e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 7041e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 7051e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 7061e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 7071e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 7081e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 7096926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 7106926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 7116926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 7120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 7132542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy SkXfermode::Mode mode, float alpha) { 7140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 7150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 7160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7172542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 7182542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 7190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 7200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 7210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 7220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 7240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 7250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 7280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 7290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 7300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 7310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy x, y, r, g, b, a, mode, transforms, applyFilters); 7320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 7350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 7360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 7370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 7380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 7390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 7400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 7410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 7440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->describe(description, mExtensions); 7450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 7470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->describe(description, mExtensions); 7480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 7520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy useProgram(mProgramCache.get(description)); 7530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup the blending mode 7550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy chooseBlending(true, mode); 7560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 7570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), textureUnit); 7580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 7600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 7610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes 7630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 7640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].position[0]); 7650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 7660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].texture[0]); 7670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 7690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 7700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 7710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 7720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 7730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 7740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 7760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 7770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 7790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 7810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 7820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 7830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 7850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->setupProgram(mCurrentProgram); 7860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 7910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 7920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 7930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 7950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 7960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 7970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 7980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 7990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 8000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 8010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 8020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 8030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 8060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 8070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 8080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 8090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 8110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 8120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 8140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 8180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float textSize = paint->getTextSize(); 8190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float height = textSize * kStdUnderline_Thickness; 8200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float left = x - offsetX; 8220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 8230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float right = left + underlineWidth; 8240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float bottom = 0.0f; 8250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 8270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 8280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 8330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 8340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 8400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 841026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 8423d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 843d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 84406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 845d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 846d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 847d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 848d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 849026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 850d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 851c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 852c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 853c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 854c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 85506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 8569d5316e3f56d138504565ff311145ac01621dff4Romain Guy 85706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup the blending mode 85806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy chooseBlending(alpha < 255 || (mShader && mShader->blend()), mode); 8599d5316e3f56d138504565ff311145ac01621dff4Romain Guy 86006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 861889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 86206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 86306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 864c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 865db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 866db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 867db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 868c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 86906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 870889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 871c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 87206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 873889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 874ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 875c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 87606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 877889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 878889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 87906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 88006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 881889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 88206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 88306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, identity); 884889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 88506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform4f(mCurrentProgram->color, r, g, b, a); 886d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 88706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 88806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 88906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->setupProgram(mCurrentProgram, mModelView, *mSnapshot, &textureUnit); 890d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 891db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 892db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 893db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 894d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 89506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Draw the mesh 896889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 897d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 898d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 89982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 900a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 90182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 90282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 90382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 90482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 905a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 906ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 90785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 90885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 909bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 910a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 911a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 912ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 913f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 914f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 915f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 916a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 917f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 918889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 919889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 920db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 921db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 922db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 923889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 924bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 925bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 926bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 927889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy useProgram(mProgramCache.get(description)); 928889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mCurrentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 929bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 930a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 931889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 932889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 93306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 934889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform1i(mCurrentProgram->getUniform("sampler"), 0); 935c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 936a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 937889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glUniform4f(mCurrentProgram->color, alpha, alpha, alpha, alpha); 938bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 939889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 940889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy int texCoordsSlot = mCurrentProgram->getAttrib("texCoords"); 941889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 942889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(mCurrentProgram->position, 2, GL_FLOAT, GL_FALSE, 943ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 944889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 945bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 946db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 947db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 948db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->setupProgram(mCurrentProgram); 949db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 950db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 951f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 952ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 953f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 954f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 955f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 956889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 95782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 95882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 95982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 96082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 96182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 96282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 96382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 96482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 96582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 96682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 96782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 96882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 96982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 97082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 97182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 97282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 97382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 97482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 97582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 97682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 97782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 97882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 97982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 98082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 981bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 982bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 983889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 984d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 985889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy if (mCurrentProgram != NULL) mCurrentProgram->remove(); 986d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 987d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 9886926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 989260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 9906926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 991260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 992260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 993026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 994ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 99582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 99682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 99782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 99882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 9998ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 10008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 10018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 10028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 10038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 10048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 10058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 10068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 10078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 10088ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 10098ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 10108ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 10118ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 10128ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 10138ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 10148ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 10158ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 10168ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 10178ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 10188ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 10198ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1020026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1021026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1022889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 1023889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 1024ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 1025a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 1026a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 1027a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1028a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 10299d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1030e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1031