OpenGLRenderer.cpp revision 694b519ac647fe998fd396fe0784cc8e179aadc4
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" 30e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 31e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 329d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 339d5316e3f56d138504565ff311145ac01621dff4Romain Guy 349d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 359d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 369d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 379d5316e3f56d138504565ff311145ac01621dff4Romain Guy 38121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// These properties are defined in mega-bytes 39121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size" 40121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size" 41c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy#define PROPERTY_GRADIENT_CACHE_SIZE "ro.hwui.gradient_cache_size" 42121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 43c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy#define DEFAULT_TEXTURE_CACHE_SIZE 20.0f 44c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy#define DEFAULT_LAYER_CACHE_SIZE 10.0f 45f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy#define DEFAULT_PATCH_CACHE_SIZE 100 46c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy#define DEFAULT_GRADIENT_CACHE_SIZE 0.5f 47dda570201ac851dd85af3861f7e575721d3345daRomain 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 SV(x, y) { { x, y } } 53bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 549d5316e3f56d138504565ff311145ac01621dff4Romain Guy 559d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 569d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 579d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 589d5316e3f56d138504565ff311145ac01621dff4Romain Guy 59026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const SimpleVertex gDrawColorVertices[] = { 60bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 0.0f), 61bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 0.0f), 62bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 1.0f), 63bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 1.0f) 649d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexStride = sizeof(SimpleVertex); 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexCount = 4; 679d5316e3f56d138504565ff311145ac01621dff4Romain Guy 68026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 69026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 70026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const TextureVertex gDrawTextureVertices[] = { 71c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 72c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 73c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 74c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 75bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexStride = sizeof(TextureVertex); 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexCount = 4; 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 86026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 87026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 88026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 89026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 90026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 91026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 92026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 93026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 94026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 95e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 96d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guystatic const GLint gTileModes[] = { 97d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_CLAMP_TO_EDGE, // == SkShader::kClamp_TileMode 98d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_REPEAT, // == SkShader::kRepeat_Mode 99d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_MIRRORED_REPEAT // == SkShader::kMirror_TileMode 100d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 101d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 103f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 104f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 105f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 106dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 10782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend(false), mLastSrcMode(GL_ZERO), mLastDstMode(GL_ZERO), 108dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 109f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), 110c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache(MB(DEFAULT_GRADIENT_CACHE_SIZE)), 111f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mPatchCache(DEFAULT_PATCH_CACHE_SIZE) { 11285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1139d5316e3f56d138504565ff311145ac01621dff4Romain Guy 114121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 115121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 116dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 117c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mTextureCache.setMaxSize(MB(atof(property))); 118dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 119c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default texture cache size of %.2fMB", DEFAULT_TEXTURE_CACHE_SIZE); 120dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 121dda570201ac851dd85af3861f7e575721d3345daRomain Guy 122dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 123dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 124c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mLayerCache.setMaxSize(MB(atof(property))); 125dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 126c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default layer cache size of %.2fMB", DEFAULT_LAYER_CACHE_SIZE); 127c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 128c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 129c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (property_get(PROPERTY_GRADIENT_CACHE_SIZE, property, NULL) > 0) { 130c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Setting gradient cache size to %sMB", property); 131c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mLayerCache.setMaxSize(MB(atof(property))); 132c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } else { 133c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default gradient cache size of %.2fMB", DEFAULT_GRADIENT_CACHE_SIZE); 134121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 135121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 136d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawColorProgram = new DrawColorProgram; 137d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram = new DrawTextureProgram; 138694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mDrawTextProgram = new DrawTextProgram; 139f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mDrawLinearGradientProgram = new DrawLinearGradientProgram; 140d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = mDrawTextureProgram; 141d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 142d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = kShaderNone; 143a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = GL_CLAMP_TO_EDGE; 144a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = GL_CLAMP_TO_EDGE; 145d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = NULL; 146d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = NULL; 147026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1481e79386ba34f0db38c1b35b22cdf122632534354Romain Guy mLastTexture = 0; 1491e79386ba34f0db38c1b35b22cdf122632534354Romain Guy 150026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy memcpy(mDrawTextureVertices, gDrawTextureVertices, sizeof(gDrawTextureVertices)); 151e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 152e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 15385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 15485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 155ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 156ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 157dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 158c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache.clear(); 1596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy mPatchCache.clear(); 160e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 161e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 162f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 163f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 164f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 165f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 16685bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 16708ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 16808ae317c21ec3086b5017672bba87420cc38a407Romain Guy 169260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 170bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 171bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 172bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 173f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mFirstSnapshot.height = height; 174e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 175e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 17685bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1777ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = &mFirstSnapshot; 1787ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 179f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 18008ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 18208ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 18308ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 184bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 18508ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 186c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 187f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 188bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mSnapshot->clipRect.set(0.0f, 0.0f, mWidth, mHeight); 189bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 190bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 191f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 192f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 193f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 194f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1967ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 197bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 198bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 202bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 203bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 2077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 210bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 211bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 215bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2167ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 2177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 2187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 2217ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 223bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 224bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 225bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2267ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2277ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 228bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 229bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 230bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2317ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 232bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 233f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 234bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 235bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2367ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 237bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 238f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 239260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 240f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 241f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 242bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 243d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 244d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 245bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 246d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 247d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2485cbbce535744b89df5ecea95de21ee3733298260Romain Guy 249d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 250d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2515cbbce535744b89df5ecea95de21ee3733298260Romain Guy 252d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 253dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 254dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 255dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 256dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 257dda570201ac851dd85af3861f7e575721d3345daRomain Guy 258d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 259d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 260d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2615cbbce535744b89df5ecea95de21ee3733298260Romain Guy 262d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 263079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = previous->clipRect; 264d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 265bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 266dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 267dda570201ac851dd85af3861f7e575721d3345daRomain Guy 268d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Compute the correct texture coordinates for the FBO texture 269d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // The texture is currently as big as the window but drawn with 270d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // a quad of the appropriate size 271dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 272dda570201ac851dd85af3861f7e575721d3345daRomain Guy 273dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 274a979474f15b454c8e2963f239a3770e200bb227cRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 275bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 276dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 277f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // Failing to add the layer to the cache should happen only if the 278f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // layer is too large 279dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 280dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 281bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 282dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 283dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 284dda570201ac851dd85af3861f7e575721d3345daRomain Guy 285dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 286dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 287bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 288bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 289f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 290bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 291bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 292bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 293bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 294bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 298d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 299d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 300d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 301d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 302d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 303d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 304d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 305d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 306d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 307d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 308d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 309d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 310d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 311d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 312d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 313d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 314bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 315bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 316bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 317bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 318bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 319d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 320d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 321d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 322bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 323d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 324d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 325bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 326d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 327dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 328dda570201ac851dd85af3861f7e575721d3345daRomain Guy 329f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 330f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 331dda570201ac851dd85af3861f7e575721d3345daRomain Guy 332f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 333f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 334f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 335bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 336bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 337f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 338f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 339f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 340f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 341f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 342f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 343f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 344f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 345dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 346d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 347dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 348dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 349dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 350dda570201ac851dd85af3861f7e575721d3345daRomain Guy 351dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 352dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 353d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 354f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 355f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 356f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 357f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 358079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 359f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 360f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 361f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 362079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->flags = Snapshot::kFlagDirtyOrtho | Snapshot::kFlagClipSet; 363260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mSnapshot->orthoMatrix.load(mOrthoMatrix); 364f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 365f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 366260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 367f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 368d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 369bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 370bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 371bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 372f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 373f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 374f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 375f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3767ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 377f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 378f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3807ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 381f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 382f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 383f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3847ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 385f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 386f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 387f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3887ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 389f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 390f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 391f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3927ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 393f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 394f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 395f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3967ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3977ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 398f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 399f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 400f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 401f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 402f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 403f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 404bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 405079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 406f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4079d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4089d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4099d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 410079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 411bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 412bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 413c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 414c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 415079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->transform.mapRect(r); 416c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 417c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 418c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 419079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 420079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4217ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4237ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 424079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 425e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 426e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 427f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 428f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 429f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 430f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 431c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4376926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4386926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 439f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4406926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 443f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 444f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 445f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 446f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 447f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4486926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4496926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4506926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 452f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 45382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 454f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 455f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 459f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4616926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4626926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4636926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 464f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 468c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4728ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 473c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4758ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 47682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4778ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4788ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 479ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 480ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 481deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 482deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4836926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4846926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4856926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4866926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 487f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 488f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 489f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 490f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 491f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 492f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 493f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 494fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 495fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 496f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 497f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 498f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 499a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 500a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 50116202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 502f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 503f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 50485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 505079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 5063d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 507c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5089d5316e3f56d138504565ff311145ac01621dff4Romain Guy 509bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5106926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5116926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5126926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5136926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 514026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 515026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 516026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 517026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 518026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 519026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 520026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 521026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 522026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 523026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 524026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 525d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 526026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 527026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 528026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 529026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 530c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5319d5316e3f56d138504565ff311145ac01621dff4Romain Guy 532694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyvoid OpenGLRenderer::drawText(const char* text, int count, float x, float y, SkPaint* paint) { 533694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // TODO: Support paint's text alignments, proper clipping 534694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy if (quickReject(x, y, x + 1, y +1)) { 535694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy return; 536694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy } 537694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 538694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 539694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 540694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 541694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 542694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t color = paint->getColor(); 543694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat a = alpha / 255.0f; 544694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 545694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 546694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 547694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 548694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mModelView.loadIdentity(); 549694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 550694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy useProgram(mDrawTextProgram); 551694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mDrawTextProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 552694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 553694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy chooseBlending(true, mode); 554694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bindTexture(mFontRenderer.getTexture(), GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 555694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 556694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Always premultiplied 557694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glUniform4f(mDrawTextProgram->color, r, g, b, a); 558694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 559694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mFontRenderer.setFont(SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); 560694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mFontRenderer.renderText(paint, text, count, 0, count, x, y); 561694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 562694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 563694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 564694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5656926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 566d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 567d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 568d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 569d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 570d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = OpenGLRenderer::kShaderNone; 571f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mShaderKey = NULL; 572d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = false; 573a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = GL_CLAMP_TO_EDGE; 574a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = GL_CLAMP_TO_EDGE; 575d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 576d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 577d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::setupBitmapShader(SkBitmap* bitmap, SkShader::TileMode tileX, 578d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkShader::TileMode tileY, SkMatrix* matrix, bool hasAlpha) { 5797fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShader = OpenGLRenderer::kShaderBitmap; 580d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = hasAlpha; 581d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = bitmap; 582a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = gTileModes[tileX]; 583a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = gTileModes[tileY]; 584d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = matrix; 585d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 586d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 587c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guyvoid OpenGLRenderer::setupLinearGradientShader(SkShader* shader, float* bounds, uint32_t* colors, 588c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy float* positions, int count, SkShader::TileMode tileMode, SkMatrix* matrix, 589c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy bool hasAlpha) { 590f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy // TODO: We should use a struct to describe each shader 5917fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShader = OpenGLRenderer::kShaderLinearGradient; 592f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mShaderKey = shader; 5937fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderBlend = hasAlpha; 594a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = gTileModes[tileMode]; 595a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = gTileModes[tileMode]; 5967fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderMatrix = matrix; 5977fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderBounds = bounds; 5987fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderColors = colors; 5997fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderPositions = positions; 600c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mShaderCount = count; 6017fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6027fac2e18339f765320d759e8d4c090f92431959eRomain Guy 603d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 6046926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 6056926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 6066926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 607026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 6083d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 609d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 610d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShader != kShaderNone) { 611d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 612d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 613d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 614d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 615026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 616d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 617d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 618d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy switch (mShader) { 6197fac2e18339f765320d759e8d4c090f92431959eRomain Guy case OpenGLRenderer::kShaderBitmap: 620d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawBitmapShader(left, top, right, bottom, a, mode); 621d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy return; 6227fac2e18339f765320d759e8d4c090f92431959eRomain Guy case OpenGLRenderer::kShaderLinearGradient: 623c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy drawLinearGradientShader(left, top, right, bottom, a, mode); 624c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy return; 625d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy default: 626d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy break; 627d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 628026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 629c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 630c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 631c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 632c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 6336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy // Pre-multiplication happens when setting the shader color 634d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy chooseBlending(alpha < 255 || mShaderBlend, mode); 6359d5316e3f56d138504565ff311145ac01621dff4Romain Guy 636c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.loadTranslate(left, top, 0.0f); 637c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 6389d5316e3f56d138504565ff311145ac01621dff4Romain Guy 639079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (!useProgram(mDrawColorProgram)) { 640d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLvoid* p = &gDrawColorVertices[0].position[0]; 641079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glVertexAttribPointer(mDrawColorProgram->position, 2, GL_FLOAT, GL_FALSE, 642d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy gDrawColorVertexStride, p); 643d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 644d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 6453d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy if (!ignoreTransform) { 646079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 6473d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } else { 6483d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy mat4 identity; 649079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, identity); 6503d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } 6519d5316e3f56d138504565ff311145ac01621dff4Romain Guy 652079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glUniform4f(mDrawColorProgram->color, r, g, b, a); 6539d5316e3f56d138504565ff311145ac01621dff4Romain Guy 654c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawColorVertexCount); 65582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 656026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 657c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guyvoid OpenGLRenderer::drawLinearGradientShader(float left, float top, float right, float bottom, 658c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy float alpha, SkXfermode::Mode mode) { 659c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy Texture* texture = mGradientCache.get(mShaderKey); 660c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (!texture) { 661a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy SkShader::TileMode tileMode = SkShader::kClamp_TileMode; 662a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy switch (mShaderTileX) { 663a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy case GL_REPEAT: 664a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy tileMode = SkShader::kRepeat_TileMode; 665a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy break; 666a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy case GL_MIRRORED_REPEAT: 667a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy tileMode = SkShader::kMirror_TileMode; 668a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy break; 669a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy } 670a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 671c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy texture = mGradientCache.addLinearGradient(mShaderKey, mShaderBounds, mShaderColors, 672a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderPositions, mShaderCount, tileMode); 673c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 674c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 675c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mModelView.loadTranslate(left, top, 0.0f); 676c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 677c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 678c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy useProgram(mDrawLinearGradientProgram); 679c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mDrawLinearGradientProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 680c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 681c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy chooseBlending(mShaderBlend || alpha < 1.0f, mode); 682a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy bindTexture(texture->id, mShaderTileX, mShaderTileY); 683c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 684c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy Rect start(mShaderBounds[0], mShaderBounds[1], mShaderBounds[2], mShaderBounds[3]); 685c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (mShaderMatrix) { 686c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mat4 shaderMatrix(*mShaderMatrix); 687c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy shaderMatrix.mapRect(start); 688c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 689c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mSnapshot->transform.mapRect(start); 690c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 691c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const float gradientX = start.right - start.left; 692c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const float gradientY = start.bottom - start.top; 693c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 694c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mat4 screenSpace(mSnapshot->transform); 695c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy screenSpace.multiply(mModelView); 696c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 697c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy // Always premultiplied 698c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform4f(mDrawLinearGradientProgram->color, alpha, alpha, alpha, alpha); 699c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform2f(mDrawLinearGradientProgram->start, start.left, start.top); 700c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform2f(mDrawLinearGradientProgram->gradient, gradientX, gradientY); 701c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform1f(mDrawLinearGradientProgram->gradientLength, 702c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 1.0f / (gradientX * gradientX + gradientY * gradientY)); 703c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniformMatrix4fv(mDrawLinearGradientProgram->screenSpace, 1, GL_FALSE, 704c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy &screenSpace.data[0]); 705c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 706c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glVertexAttribPointer(mDrawLinearGradientProgram->position, 2, GL_FLOAT, GL_FALSE, 707c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy gDrawTextureVertexStride, &mDrawTextureVertices[0].position[0]); 708c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 709c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 710c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy} 711c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 712d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::drawBitmapShader(float left, float top, float right, float bottom, 713d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float alpha, SkXfermode::Mode mode) { 714d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const Texture* texture = mTextureCache.get(mShaderBitmap); 715d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 716d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float width = texture->width; 717d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float height = texture->height; 718d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 719d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // This could be done in the vertex shader but we have only 4 vertices 720d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u1 = 0.0f; 721d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v1 = 0.0f; 722d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u2 = right - left; 723d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v2 = bottom - top; 724d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 725694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // TODO: If the texture is not pow, use a shader to support repeat/mirror 726d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShaderMatrix) { 727d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkMatrix inverse; 728d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix->invert(&inverse); 729d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mat4 m(inverse); 730d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy Rect r(u1, v1, u2, v2); 731d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy m.mapRect(r); 732d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 733d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 = r.left; 734d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 = r.right; 735d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 = r.top; 736d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 = r.bottom; 737d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 738d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 739d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 /= width; 740d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 /= width; 741d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 /= height; 742d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 /= height; 743d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 744d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 745d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 746d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha, mode, texture->blend, 747d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 748d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 749d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 750d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 751d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 75282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 753a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 75482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 75582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 75682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 75782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 758a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 759a979474f15b454c8e2963f239a3770e200bb227cRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 76085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 76185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 762bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 763a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 764a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 765f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 766f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 767f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 768f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 769a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 770f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 771bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 772bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 773bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 774d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy useProgram(mDrawTextureProgram); 775d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 776bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 777a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 778a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy bindTexture(texture, mShaderTileX, mShaderTileY); 779c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 780a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 781d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glUniform4f(mDrawTextureProgram->color, alpha, alpha, alpha, alpha); 782bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 783d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->position, 2, GL_FLOAT, GL_FALSE, 784f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, vertices); 785d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->texCoords, 2, GL_FLOAT, GL_FALSE, 786f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, texCoords); 787bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 788f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 789f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 790f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 791f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 792f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 79382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 79482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 79582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 79682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // In theory we should not blend if the mode is Src, but it's rare enough 79782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // that it's not worth it 79882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 79982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 80082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 80182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 80282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 80382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 80482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 80582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 80682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 80782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 80882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 80982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 81082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 81182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 81282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 81382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 81482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 81582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 81682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 81782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 81882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 819bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 820bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 821d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guybool OpenGLRenderer::useProgram(const sp<Program>& program) { 822d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 823d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram->remove(); 824d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 825d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 8266926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 827260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 8286926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 829260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 830260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 831026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 83282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex* v = &mDrawTextureVertices[0]; 83382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 83482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 83582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 83682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 8378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 8388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 8408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 8418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 8428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 8438ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 8448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 8458ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 8468ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 8488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 8498ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 8508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 8518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 8528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 8538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 8548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 8558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 8568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 8578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 858026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 859026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 860a1db574036c9bc2d397b69f8200594027e1fff16Romain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT) { 861a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy if (texture != mLastTexture) { 862a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 863a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mLastTexture = texture; 864a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy } 865a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy // TODO: Don't set the texture parameters every time 866a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 867a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 868a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 869a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 8709d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 871e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 872