OpenGLRenderer.cpp revision e8e62a4a032a80409114a37908b5f18ab0080848
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 40c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy#define DEFAULT_LAYER_CACHE_SIZE 10.0f 41f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy#define DEFAULT_PATCH_CACHE_SIZE 100 42c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy#define DEFAULT_GRADIENT_CACHE_SIZE 0.5f 43dda570201ac851dd85af3861f7e575721d3345daRomain Guy 44121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// Converts a number of mega-bytes into bytes 45121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define MB(s) s * 1024 * 1024 46121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 47dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Generates simple and textured vertices 48bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define SV(x, y) { { x, y } } 49bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 509d5316e3f56d138504565ff311145ac01621dff4Romain Guy 519d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 529d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 549d5316e3f56d138504565ff311145ac01621dff4Romain Guy 55026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const SimpleVertex gDrawColorVertices[] = { 56bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 0.0f), 57bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 0.0f), 58bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 1.0f), 59bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 1.0f) 609d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; 61026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexStride = sizeof(SimpleVertex); 62026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexCount = 4; 639d5316e3f56d138504565ff311145ac01621dff4Romain Guy 64026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const TextureVertex gDrawTextureVertices[] = { 67c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 68c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 69c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 70c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 71bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexStride = sizeof(TextureVertex); 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexCount = 4; 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 86026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 87026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 88026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 89026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 90026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 91e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 92d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guystatic const GLint gTileModes[] = { 93d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_CLAMP_TO_EDGE, // == SkShader::kClamp_TileMode 94d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_REPEAT, // == SkShader::kRepeat_Mode 95d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_MIRRORED_REPEAT // == SkShader::kMirror_TileMode 96d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 97d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 98f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 99f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 100f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 101f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 102dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 10382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend(false), mLastSrcMode(GL_ZERO), mLastDstMode(GL_ZERO), 104dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 105f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), 106c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache(MB(DEFAULT_GRADIENT_CACHE_SIZE)), 107f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mPatchCache(DEFAULT_PATCH_CACHE_SIZE) { 10885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1099d5316e3f56d138504565ff311145ac01621dff4Romain Guy 110121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 111121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 112dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 113c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mTextureCache.setMaxSize(MB(atof(property))); 114dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 115c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default texture cache size of %.2fMB", DEFAULT_TEXTURE_CACHE_SIZE); 116dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 117dda570201ac851dd85af3861f7e575721d3345daRomain Guy 118dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 119dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 120c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mLayerCache.setMaxSize(MB(atof(property))); 121dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 122c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default layer cache size of %.2fMB", DEFAULT_LAYER_CACHE_SIZE); 123c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 124c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 125c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (property_get(PROPERTY_GRADIENT_CACHE_SIZE, property, NULL) > 0) { 126c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Setting gradient cache size to %sMB", property); 127c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mLayerCache.setMaxSize(MB(atof(property))); 128c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } else { 129c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default gradient cache size of %.2fMB", DEFAULT_GRADIENT_CACHE_SIZE); 130121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 131121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 132d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawColorProgram = new DrawColorProgram; 133d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram = new DrawTextureProgram; 134694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mDrawTextProgram = new DrawTextProgram; 135f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mDrawLinearGradientProgram = new DrawLinearGradientProgram; 136d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = mDrawTextureProgram; 137d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 138d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = kShaderNone; 139a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = GL_CLAMP_TO_EDGE; 140a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = GL_CLAMP_TO_EDGE; 141d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = NULL; 142d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = NULL; 143026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1441e79386ba34f0db38c1b35b22cdf122632534354Romain Guy mLastTexture = 0; 1451e79386ba34f0db38c1b35b22cdf122632534354Romain Guy 146026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy memcpy(mDrawTextureVertices, gDrawTextureVertices, sizeof(gDrawTextureVertices)); 147e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 148e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 14985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 15085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 151ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 152ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 153dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 154c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache.clear(); 1556926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy mPatchCache.clear(); 156e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 157e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 158f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 159f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 160f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 161f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 16285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 16308ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 16408ae317c21ec3086b5017672bba87420cc38a407Romain Guy 165260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 166bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 167bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 168bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 169f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mFirstSnapshot.height = height; 170e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 171e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 17285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1737ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = &mFirstSnapshot; 1747ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 175f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 17608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 177bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 17808ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 17908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 180bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 18108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 182c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 183f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 184bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mSnapshot->clipRect.set(0.0f, 0.0f, mWidth, mHeight); 185bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 186bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 187f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 188f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 189f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 190f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 191bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1927ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 193bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 194bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1967ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 197bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 198bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2027ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 2037ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 206bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 211bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 2137ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 2147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 215bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2167ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 2177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 221bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2237ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 224bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 225bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 226bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2277ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 228bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 229f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 230bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 231bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2327ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 233bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 234f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 235260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 236f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 237f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 238bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 239d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 240d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 241bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 242d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 243d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2445cbbce535744b89df5ecea95de21ee3733298260Romain Guy 245d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 246d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2475cbbce535744b89df5ecea95de21ee3733298260Romain Guy 248d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 249dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 250dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 251dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 252dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 253dda570201ac851dd85af3861f7e575721d3345daRomain Guy 254d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 255d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 256d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2575cbbce535744b89df5ecea95de21ee3733298260Romain Guy 258d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 259079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = previous->clipRect; 260d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 261bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 262dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 263dda570201ac851dd85af3861f7e575721d3345daRomain Guy 264d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Compute the correct texture coordinates for the FBO texture 265d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // The texture is currently as big as the window but drawn with 266d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // a quad of the appropriate size 267dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 268dda570201ac851dd85af3861f7e575721d3345daRomain Guy 269dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 270a979474f15b454c8e2963f239a3770e200bb227cRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 271bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 272dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 273f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // Failing to add the layer to the cache should happen only if the 274f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // layer is too large 275dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 276dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 277bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 278dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 279dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 280dda570201ac851dd85af3861f7e575721d3345daRomain Guy 281dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 282dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 283bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 284bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 285f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 286bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 287bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 288bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 289bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 290bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 291d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 293d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 294d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 298d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 299d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 300d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 301d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 302d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 303d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 304d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 305d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 306d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 307d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 308d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 309d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 310bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 311bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 312bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 313bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 314bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 315d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 316d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 317d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 318bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 319d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 320d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 321bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 322d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 323dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 324dda570201ac851dd85af3861f7e575721d3345daRomain Guy 325f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 326f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 327dda570201ac851dd85af3861f7e575721d3345daRomain Guy 328f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 329f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 330f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 331bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 332bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 333f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 334f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 335f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 336f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 337f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 338f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 339f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 340f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 341dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 342d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 343dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 344dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 345dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 346dda570201ac851dd85af3861f7e575721d3345daRomain Guy 347dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 348dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 349d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 350f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 351f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 352f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 353f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 354079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 355f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 356f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 357f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 358079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->flags = Snapshot::kFlagDirtyOrtho | Snapshot::kFlagClipSet; 359260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mSnapshot->orthoMatrix.load(mOrthoMatrix); 360f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 361f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 362260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 363f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 364d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 365bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 366bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 367bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 368f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 369f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 370f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3727ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 373f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 374f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 375f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3767ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 377f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 378f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3807ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 381f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 382f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 383f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3847ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 385f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 386f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 387f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3887ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 389f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 390f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 391f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3927ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3937ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 394f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 395f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 396f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 397f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 398f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 399f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 400bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 401079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 402f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4039d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4049d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4059d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 406079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 407bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 408bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 409c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 410c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 411079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->transform.mapRect(r); 412c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 413c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 414c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 415079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 416079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4197ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 420079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 421e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 422e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 423f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 424f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 425f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 426f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 427c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4286926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4296926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4306926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 435f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 439f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 440f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 441f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 442f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 443f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4446926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4456926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4466926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 448f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 44982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 450f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 451f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 455f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4566926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4576926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4586926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 460f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 464c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 469c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 47282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4738ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 475ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 476ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 477deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 478deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4796926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4806926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4816926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4826926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 483f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 484f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 485f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 486f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 487f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 488f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 489f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 490fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 491fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 492f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 493f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 494f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 495a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 496a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 49716202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 498f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 499f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 50085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 501079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 5023d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 503c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5049d5316e3f56d138504565ff311145ac01621dff4Romain Guy 505bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5066926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5076926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5086926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5096926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 510026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 511026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 512026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 513026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 514026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 515026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 516026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 517026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 518026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 519026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 520026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 521d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 522026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 523026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 524026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 525026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 526c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5279d5316e3f56d138504565ff311145ac01621dff4Romain Guy 528e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 529e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 530e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 531e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 532e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 533e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 534e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float length; 535e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 536e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 537e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 538e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 539e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 540e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 541e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 542e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 543e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 544e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 545e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 546e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 547e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 548694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 549694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 550694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 551694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 552694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t color = paint->getColor(); 553694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat a = alpha / 255.0f; 554694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 555694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 556694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 557694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 558694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mModelView.loadIdentity(); 559694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 560694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy useProgram(mDrawTextProgram); 561694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mDrawTextProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 562694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 563694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy chooseBlending(true, mode); 564694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bindTexture(mFontRenderer.getTexture(), GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 565694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 566694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Always premultiplied 567694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glUniform4f(mDrawTextProgram->color, r, g, b, a); 568694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 56909147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy // TODO: Implement scale properly 57009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 57109147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 572694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mFontRenderer.setFont(SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); 573e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy mFontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 574694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 575694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 576694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 577694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5786926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 579d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 580d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 581d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 582d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 583d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = OpenGLRenderer::kShaderNone; 584f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mShaderKey = NULL; 585d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = false; 586a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = GL_CLAMP_TO_EDGE; 587a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = GL_CLAMP_TO_EDGE; 588d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 589d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 590d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::setupBitmapShader(SkBitmap* bitmap, SkShader::TileMode tileX, 591d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkShader::TileMode tileY, SkMatrix* matrix, bool hasAlpha) { 5927fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShader = OpenGLRenderer::kShaderBitmap; 593d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = hasAlpha; 594d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = bitmap; 595a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = gTileModes[tileX]; 596a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = gTileModes[tileY]; 597d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = matrix; 598d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 599d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 600c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guyvoid OpenGLRenderer::setupLinearGradientShader(SkShader* shader, float* bounds, uint32_t* colors, 601c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy float* positions, int count, SkShader::TileMode tileMode, SkMatrix* matrix, 602c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy bool hasAlpha) { 603f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy // TODO: We should use a struct to describe each shader 6047fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShader = OpenGLRenderer::kShaderLinearGradient; 605f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mShaderKey = shader; 6067fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderBlend = hasAlpha; 607a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = gTileModes[tileMode]; 608a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = gTileModes[tileMode]; 6097fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderMatrix = matrix; 6107fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderBounds = bounds; 6117fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderColors = colors; 6127fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderPositions = positions; 613c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mShaderCount = count; 6147fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6157fac2e18339f765320d759e8d4c090f92431959eRomain Guy 616d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 6176926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 6186926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 6196926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 620026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 6213d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 622d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 623d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShader != kShaderNone) { 624d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 625d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 626d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 627d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 628026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 629d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 630d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 631d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy switch (mShader) { 6327fac2e18339f765320d759e8d4c090f92431959eRomain Guy case OpenGLRenderer::kShaderBitmap: 633d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawBitmapShader(left, top, right, bottom, a, mode); 634d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy return; 6357fac2e18339f765320d759e8d4c090f92431959eRomain Guy case OpenGLRenderer::kShaderLinearGradient: 636c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy drawLinearGradientShader(left, top, right, bottom, a, mode); 637c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy return; 638d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy default: 639d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy break; 640d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 641026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 642c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 643c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 644c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 645c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 6466926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy // Pre-multiplication happens when setting the shader color 647d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy chooseBlending(alpha < 255 || mShaderBlend, mode); 6489d5316e3f56d138504565ff311145ac01621dff4Romain Guy 649c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.loadTranslate(left, top, 0.0f); 650c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 6519d5316e3f56d138504565ff311145ac01621dff4Romain Guy 652079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (!useProgram(mDrawColorProgram)) { 653d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLvoid* p = &gDrawColorVertices[0].position[0]; 654079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glVertexAttribPointer(mDrawColorProgram->position, 2, GL_FLOAT, GL_FALSE, 655d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy gDrawColorVertexStride, p); 656d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 657d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 6583d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy if (!ignoreTransform) { 659079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 6603d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } else { 6613d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy mat4 identity; 662079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, identity); 6633d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } 6649d5316e3f56d138504565ff311145ac01621dff4Romain Guy 665079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glUniform4f(mDrawColorProgram->color, r, g, b, a); 6669d5316e3f56d138504565ff311145ac01621dff4Romain Guy 667c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawColorVertexCount); 66882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 669026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 670c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guyvoid OpenGLRenderer::drawLinearGradientShader(float left, float top, float right, float bottom, 671c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy float alpha, SkXfermode::Mode mode) { 672c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy Texture* texture = mGradientCache.get(mShaderKey); 673c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (!texture) { 674a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy SkShader::TileMode tileMode = SkShader::kClamp_TileMode; 675a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy switch (mShaderTileX) { 676a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy case GL_REPEAT: 677a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy tileMode = SkShader::kRepeat_TileMode; 678a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy break; 679a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy case GL_MIRRORED_REPEAT: 680a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy tileMode = SkShader::kMirror_TileMode; 681a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy break; 682a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy } 683a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 684c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy texture = mGradientCache.addLinearGradient(mShaderKey, mShaderBounds, mShaderColors, 685a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderPositions, mShaderCount, tileMode); 686c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 687c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 688c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mModelView.loadTranslate(left, top, 0.0f); 689c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 690c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 691c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy useProgram(mDrawLinearGradientProgram); 692c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mDrawLinearGradientProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 693c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 694c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy chooseBlending(mShaderBlend || alpha < 1.0f, mode); 695a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy bindTexture(texture->id, mShaderTileX, mShaderTileY); 696c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 697c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy Rect start(mShaderBounds[0], mShaderBounds[1], mShaderBounds[2], mShaderBounds[3]); 698c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (mShaderMatrix) { 699c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mat4 shaderMatrix(*mShaderMatrix); 700c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy shaderMatrix.mapRect(start); 701c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 702c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mSnapshot->transform.mapRect(start); 703c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 704c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const float gradientX = start.right - start.left; 705c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const float gradientY = start.bottom - start.top; 706c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 707c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mat4 screenSpace(mSnapshot->transform); 708c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy screenSpace.multiply(mModelView); 709c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 710c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy // Always premultiplied 711c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform4f(mDrawLinearGradientProgram->color, alpha, alpha, alpha, alpha); 712c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform2f(mDrawLinearGradientProgram->start, start.left, start.top); 713c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform2f(mDrawLinearGradientProgram->gradient, gradientX, gradientY); 714c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform1f(mDrawLinearGradientProgram->gradientLength, 715c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 1.0f / (gradientX * gradientX + gradientY * gradientY)); 716c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniformMatrix4fv(mDrawLinearGradientProgram->screenSpace, 1, GL_FALSE, 717c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy &screenSpace.data[0]); 718c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 719c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glVertexAttribPointer(mDrawLinearGradientProgram->position, 2, GL_FLOAT, GL_FALSE, 720c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy gDrawTextureVertexStride, &mDrawTextureVertices[0].position[0]); 721c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 722c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 723c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy} 724c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 725d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::drawBitmapShader(float left, float top, float right, float bottom, 726d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float alpha, SkXfermode::Mode mode) { 727d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const Texture* texture = mTextureCache.get(mShaderBitmap); 728d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 729d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float width = texture->width; 730d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float height = texture->height; 731d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 732d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // This could be done in the vertex shader but we have only 4 vertices 733d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u1 = 0.0f; 734d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v1 = 0.0f; 735d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u2 = right - left; 736d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v2 = bottom - top; 737d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 738694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // TODO: If the texture is not pow, use a shader to support repeat/mirror 739d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShaderMatrix) { 740d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkMatrix inverse; 741d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix->invert(&inverse); 742d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mat4 m(inverse); 743d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy Rect r(u1, v1, u2, v2); 744d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy m.mapRect(r); 745d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 746d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 = r.left; 747d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 = r.right; 748d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 = r.top; 749d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 = r.bottom; 750d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 751d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 752d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 /= width; 753d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 /= width; 754d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 /= height; 755d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 /= height; 756d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 757d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 758d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 759d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha, mode, texture->blend, 760d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 761d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 762d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 763d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 764d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 76582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 766a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 76782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 76882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 76982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 77082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 771a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 772a979474f15b454c8e2963f239a3770e200bb227cRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 77385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 77485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 775bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 776a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 777a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 778f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 779f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 780f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 781f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 782a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 783f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 784bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 785bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 786bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 787d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy useProgram(mDrawTextureProgram); 788d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 789bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 790a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 791a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy bindTexture(texture, mShaderTileX, mShaderTileY); 792c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 793a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 794d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glUniform4f(mDrawTextureProgram->color, alpha, alpha, alpha, alpha); 795bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 796d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->position, 2, GL_FLOAT, GL_FALSE, 797f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, vertices); 798d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->texCoords, 2, GL_FLOAT, GL_FALSE, 799f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, texCoords); 800bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 801f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 802f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 803f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 804f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 805f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 80682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 80782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 80882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 80982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // In theory we should not blend if the mode is Src, but it's rare enough 81082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // that it's not worth it 81182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 81282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 81382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 81482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 81582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 81682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 81782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 81882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 81982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 82082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 82182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 82282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 82382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 82482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 82582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 82682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 82782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 82882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 82982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 83082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 83182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 832bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 833bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 834d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guybool OpenGLRenderer::useProgram(const sp<Program>& program) { 835d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 836d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram->remove(); 837d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 838d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 8396926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 840260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 8416926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 842260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 843260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 844026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 84582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex* v = &mDrawTextureVertices[0]; 84682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 84782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 84882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 84982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 8508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 8518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 8538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 8548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 8558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 8568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 8578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 8588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 8598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 8618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 8628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 8638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 8648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 8658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 8668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 8678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 8688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 8698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 8708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 871026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 872026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 873a1db574036c9bc2d397b69f8200594027e1fff16Romain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT) { 874a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy if (texture != mLastTexture) { 875a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 876a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mLastTexture = texture; 877a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy } 878a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy // TODO: Don't set the texture parameters every time 879a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 880a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 881a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 882a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 8839d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 884e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 885