OpenGLRenderer.cpp revision ac670c0433d19397d4e36ced2110475b6f54fe26
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 FV(x, y, u, v) { { x, y }, { u, v } } 499d5316e3f56d138504565ff311145ac01621dff4Romain Guy 509d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 519d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 529d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy 54026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 55026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 56ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const TextureVertex gMeshVertices[] = { 57c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 58c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 59c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 60c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 61bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 62ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshStride = sizeof(TextureVertex); 63ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshCount = 4; 64026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 67026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 68026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 69026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 70026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 71026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 81e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 82d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guystatic const GLint gTileModes[] = { 83d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_CLAMP_TO_EDGE, // == SkShader::kClamp_TileMode 84d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_REPEAT, // == SkShader::kRepeat_Mode 85d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_MIRRORED_REPEAT // == SkShader::kMirror_TileMode 86d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 87d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 88f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 89f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 90f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 91f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 92dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 9382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend(false), mLastSrcMode(GL_ZERO), mLastDstMode(GL_ZERO), 94dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 95f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), 96c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache(MB(DEFAULT_GRADIENT_CACHE_SIZE)), 97f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mPatchCache(DEFAULT_PATCH_CACHE_SIZE) { 9885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 999d5316e3f56d138504565ff311145ac01621dff4Romain Guy 100121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 101121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 102dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 103c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mTextureCache.setMaxSize(MB(atof(property))); 104dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 105c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default texture cache size of %.2fMB", DEFAULT_TEXTURE_CACHE_SIZE); 106dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 107dda570201ac851dd85af3861f7e575721d3345daRomain Guy 108dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 109dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 110c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mLayerCache.setMaxSize(MB(atof(property))); 111dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 112c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default layer cache size of %.2fMB", DEFAULT_LAYER_CACHE_SIZE); 113c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 114c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 115c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (property_get(PROPERTY_GRADIENT_CACHE_SIZE, property, NULL) > 0) { 116c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Setting gradient cache size to %sMB", property); 117c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mLayerCache.setMaxSize(MB(atof(property))); 118c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } else { 119c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy LOGD(" Using default gradient cache size of %.2fMB", DEFAULT_GRADIENT_CACHE_SIZE); 120121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 121121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 122d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawColorProgram = new DrawColorProgram; 123d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram = new DrawTextureProgram; 124694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mDrawTextProgram = new DrawTextProgram; 125f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mDrawLinearGradientProgram = new DrawLinearGradientProgram; 126d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = mDrawTextureProgram; 127d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 128d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = kShaderNone; 129a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = GL_CLAMP_TO_EDGE; 130a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = GL_CLAMP_TO_EDGE; 131d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = NULL; 132d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = NULL; 133026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1341e79386ba34f0db38c1b35b22cdf122632534354Romain Guy mLastTexture = 0; 1351e79386ba34f0db38c1b35b22cdf122632534354Romain Guy 136ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 137ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 138ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy ProgramDescription d; 139ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy mProgramCache.get(d); 140ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy d.hasTexture = true; 141ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy mProgramCache.get(d); 142ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy d.hasAlpha8Texture = true; 143ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy d.hasGradient = true; 144ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy d.hasBitmap = true; 145ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy d.shadersMode = SkXfermode::kDstOut_Mode; 146ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy d.colorOp = ProgramDescription::kColorMatrix; 147ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy mProgramCache.get(d); 148e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 149e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 15085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 15185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 152ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 153ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 154dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 155c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mGradientCache.clear(); 1566926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy mPatchCache.clear(); 157e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 158e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 159f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 160f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 161f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 162f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 16385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 16408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 16508ae317c21ec3086b5017672bba87420cc38a407Romain Guy 166260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 167bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 168bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 169bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 170f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mFirstSnapshot.height = height; 171e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 172e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 17385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1747ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = &mFirstSnapshot; 1757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 176f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 17708ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 178bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 17908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 18008ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 18208ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 183c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 184f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 185bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mSnapshot->clipRect.set(0.0f, 0.0f, mWidth, mHeight); 186bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 187bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 188f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 189f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 190f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 191f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 192bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1937ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 194bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 196bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1977ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 198bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 200bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2017ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 202bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2037ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 2047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2057ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 206bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 208bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2097ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 210bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2117ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 212bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2137ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 2147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 2157ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 216bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 2187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2197ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 221bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 222bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2237ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 225bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 226bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 227bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2287ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 229bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 230f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 231bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 232bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2337ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 234bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 235f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 236260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 237f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 238f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 239bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 240d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 241d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 242bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 243d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 244d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2455cbbce535744b89df5ecea95de21ee3733298260Romain Guy 246d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 247d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2485cbbce535744b89df5ecea95de21ee3733298260Romain Guy 249d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 250dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 251dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 252dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 253dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 254dda570201ac851dd85af3861f7e575721d3345daRomain Guy 255d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 256d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 257d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2585cbbce535744b89df5ecea95de21ee3733298260Romain Guy 259d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 260079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = previous->clipRect; 261d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 262bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 263dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 264dda570201ac851dd85af3861f7e575721d3345daRomain Guy 265d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Compute the correct texture coordinates for the FBO texture 266d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // The texture is currently as big as the window but drawn with 267d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // a quad of the appropriate size 268dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 269dda570201ac851dd85af3861f7e575721d3345daRomain Guy 270dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 271a979474f15b454c8e2963f239a3770e200bb227cRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 272bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 273dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 274f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // Failing to add the layer to the cache should happen only if the 275f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // layer is too large 276dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 277dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 278bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 279dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 280dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 281dda570201ac851dd85af3861f7e575721d3345daRomain Guy 282dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 283dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 284bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 285bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 286f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 287bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 288bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 289bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 290bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 291bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 293d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 294d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 298d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 299d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 300d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 301d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 302d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 303d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 304d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 305d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 306d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 307d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 308d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 309d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 310d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 311bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 312bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 313bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 314bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 315bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 316d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 317d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 318d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 319bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 320d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 321d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 322bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 323d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 324dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 325dda570201ac851dd85af3861f7e575721d3345daRomain Guy 326f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 327f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 328dda570201ac851dd85af3861f7e575721d3345daRomain Guy 329f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 330f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 331f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 332bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 333bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 334f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 335f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 336f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 337f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 338f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 339f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 340f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 341f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 342dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 343d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 344dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 345dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 346dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 347dda570201ac851dd85af3861f7e575721d3345daRomain Guy 348dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 349dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 350d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 351f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 352f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 353f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 354f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 355079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 356f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 357f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 358f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 359079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->flags = Snapshot::kFlagDirtyOrtho | Snapshot::kFlagClipSet; 360260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mSnapshot->orthoMatrix.load(mOrthoMatrix); 361f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 362f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 363260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 364f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 365d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 366bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 367bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 368bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 369f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 370f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 372f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3737ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 374f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 375f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 376f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3777ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 378f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 380f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3817ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 382f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 383f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 384f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3857ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 386f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 387f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 388f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3897ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 390f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 391f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 392f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3937ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3947ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 395f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 396f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 397f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 398f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 399f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 400f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 401bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 402079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 403f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4049d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4059d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4069d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 407079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 408bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 409bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 410c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 411c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 412079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->transform.mapRect(r); 413c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 414c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 415c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 416079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 417079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4197ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 421079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 422e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 423e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 424f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 425f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 426f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 427f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 428c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4296926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4306926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 436f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4376926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 440f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 441f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 442f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 443f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 444f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4456926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4466926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4486926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 449f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 45082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 451f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 452f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 456f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4576926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4586926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 461f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 465c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 470c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4728ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 47382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4758ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 476ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 477ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 478deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 479deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4806926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4816926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4826926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4836926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 484f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 485f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 486f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 487f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 488f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 489f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 490f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 491fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 492fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 493f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 494f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 495f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 496a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 497a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 49816202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 499f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 500f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 50185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 502079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 5033d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 504c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5059d5316e3f56d138504565ff311145ac01621dff4Romain Guy 506bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5076926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5086926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5096926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5106926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 511026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 512026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 513026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 514026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 515026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 516026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 517026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 518026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 519026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 520026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 521026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 522d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 523026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 524026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 525026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 526026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 527c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5289d5316e3f56d138504565ff311145ac01621dff4Romain Guy 529e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 530e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 531e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 532e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 533e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 534e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 535e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float length; 536e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 537e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 538e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 539e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 540e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 541e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 542e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 543e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 544e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 545e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 546e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 547e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 548e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 549694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 550694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 551694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 552694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 553694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t color = paint->getColor(); 554694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat a = alpha / 255.0f; 555694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 556694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 557694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 558694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 559694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mModelView.loadIdentity(); 560694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 561694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy useProgram(mDrawTextProgram); 562694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy mDrawTextProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 563694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 564694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy chooseBlending(true, mode); 565694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bindTexture(mFontRenderer.getTexture(), GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 566694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 567694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Always premultiplied 568694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glUniform4f(mDrawTextProgram->color, r, g, b, a); 569694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 57009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy // TODO: Implement scale properly 57109147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 57209147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 57365ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk mFontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), paint->getTextSize()); 574e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy mFontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 575694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 576694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 577694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 578694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5796926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 580d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 581d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 582d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 583d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 584d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = OpenGLRenderer::kShaderNone; 585f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mShaderKey = NULL; 586d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = false; 587a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = GL_CLAMP_TO_EDGE; 588a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = GL_CLAMP_TO_EDGE; 589d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 590d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 591d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::setupBitmapShader(SkBitmap* bitmap, SkShader::TileMode tileX, 592d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkShader::TileMode tileY, SkMatrix* matrix, bool hasAlpha) { 5937fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShader = OpenGLRenderer::kShaderBitmap; 594d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = hasAlpha; 595d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = bitmap; 596a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = gTileModes[tileX]; 597a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = gTileModes[tileY]; 598d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = matrix; 599d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 600d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 601c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guyvoid OpenGLRenderer::setupLinearGradientShader(SkShader* shader, float* bounds, uint32_t* colors, 602c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy float* positions, int count, SkShader::TileMode tileMode, SkMatrix* matrix, 603c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy bool hasAlpha) { 604f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy // TODO: We should use a struct to describe each shader 6057fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShader = OpenGLRenderer::kShaderLinearGradient; 606f9764a4f532561f6e2e985ff3b25112f1132ce44Romain Guy mShaderKey = shader; 6077fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderBlend = hasAlpha; 608a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileX = gTileModes[tileMode]; 609a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderTileY = gTileModes[tileMode]; 6107fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderMatrix = matrix; 6117fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderBounds = bounds; 6127fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderColors = colors; 6137fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderPositions = positions; 614c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mShaderCount = count; 6157fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6167fac2e18339f765320d759e8d4c090f92431959eRomain Guy 617d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 6186926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 6196926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 6206926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 621026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 6223d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 623d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 624d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShader != kShaderNone) { 625d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 626d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 627d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 628d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 629026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 630d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 631d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 632d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy switch (mShader) { 6337fac2e18339f765320d759e8d4c090f92431959eRomain Guy case OpenGLRenderer::kShaderBitmap: 634d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawBitmapShader(left, top, right, bottom, a, mode); 635d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy return; 6367fac2e18339f765320d759e8d4c090f92431959eRomain Guy case OpenGLRenderer::kShaderLinearGradient: 637c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy drawLinearGradientShader(left, top, right, bottom, a, mode); 638c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy return; 639d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy default: 640d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy break; 641d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 642026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 643c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 644c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 645c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 646c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 6476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy // Pre-multiplication happens when setting the shader color 648d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy chooseBlending(alpha < 255 || mShaderBlend, mode); 6499d5316e3f56d138504565ff311145ac01621dff4Romain Guy 650c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.loadTranslate(left, top, 0.0f); 651c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 6529d5316e3f56d138504565ff311145ac01621dff4Romain Guy 653079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (!useProgram(mDrawColorProgram)) { 654ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy const GLvoid* vertices = &mMeshVertices[0].position[0]; 655ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy const GLvoid* texCoords = &mMeshVertices[0].texture[0]; 656ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 657079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glVertexAttribPointer(mDrawColorProgram->position, 2, GL_FLOAT, GL_FALSE, 658ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 659ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glVertexAttribPointer(mDrawColorProgram->texCoords, 2, GL_FLOAT, GL_FALSE, 660ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, texCoords); 661d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 662d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 6633d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy if (!ignoreTransform) { 664079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 6653d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } else { 6663d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy mat4 identity; 667079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, identity); 6683d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } 6699d5316e3f56d138504565ff311145ac01621dff4Romain Guy 670079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glUniform4f(mDrawColorProgram->color, r, g, b, a); 6719d5316e3f56d138504565ff311145ac01621dff4Romain Guy 672ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 67382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 674026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 675c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guyvoid OpenGLRenderer::drawLinearGradientShader(float left, float top, float right, float bottom, 676c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy float alpha, SkXfermode::Mode mode) { 677c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy Texture* texture = mGradientCache.get(mShaderKey); 678c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (!texture) { 679a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy SkShader::TileMode tileMode = SkShader::kClamp_TileMode; 680a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy switch (mShaderTileX) { 681a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy case GL_REPEAT: 682a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy tileMode = SkShader::kRepeat_TileMode; 683a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy break; 684a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy case GL_MIRRORED_REPEAT: 685a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy tileMode = SkShader::kMirror_TileMode; 686a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy break; 687a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy } 688a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 689c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy texture = mGradientCache.addLinearGradient(mShaderKey, mShaderBounds, mShaderColors, 690a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mShaderPositions, mShaderCount, tileMode); 691c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 692c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 693c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mModelView.loadTranslate(left, top, 0.0f); 694c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 695c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 696c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy useProgram(mDrawLinearGradientProgram); 697c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mDrawLinearGradientProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 698c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 699c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy chooseBlending(mShaderBlend || alpha < 1.0f, mode); 700a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy bindTexture(texture->id, mShaderTileX, mShaderTileY); 701c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 702c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy Rect start(mShaderBounds[0], mShaderBounds[1], mShaderBounds[2], mShaderBounds[3]); 703c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy if (mShaderMatrix) { 704c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mat4 shaderMatrix(*mShaderMatrix); 705c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy shaderMatrix.mapRect(start); 706c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 707c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mSnapshot->transform.mapRect(start); 708c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 709c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const float gradientX = start.right - start.left; 710c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const float gradientY = start.bottom - start.top; 711c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 712c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy mat4 screenSpace(mSnapshot->transform); 713c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy screenSpace.multiply(mModelView); 714c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 715c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy // Always premultiplied 716c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform4f(mDrawLinearGradientProgram->color, alpha, alpha, alpha, alpha); 717c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform2f(mDrawLinearGradientProgram->start, start.left, start.top); 718c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform2f(mDrawLinearGradientProgram->gradient, gradientX, gradientY); 719c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniform1f(mDrawLinearGradientProgram->gradientLength, 720c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 1.0f / (gradientX * gradientX + gradientY * gradientY)); 721c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glUniformMatrix4fv(mDrawLinearGradientProgram->screenSpace, 1, GL_FALSE, 722c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy &screenSpace.data[0]); 723c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 724c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy glVertexAttribPointer(mDrawLinearGradientProgram->position, 2, GL_FLOAT, GL_FALSE, 725ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 726c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 727ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 728c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy} 729c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 730d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::drawBitmapShader(float left, float top, float right, float bottom, 731d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float alpha, SkXfermode::Mode mode) { 732d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const Texture* texture = mTextureCache.get(mShaderBitmap); 733d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 734d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float width = texture->width; 735d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float height = texture->height; 736d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 737d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // This could be done in the vertex shader but we have only 4 vertices 738d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u1 = 0.0f; 739d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v1 = 0.0f; 740d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u2 = right - left; 741d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v2 = bottom - top; 742d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 743694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // TODO: If the texture is not pow, use a shader to support repeat/mirror 744d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShaderMatrix) { 745d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkMatrix inverse; 746d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix->invert(&inverse); 747d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mat4 m(inverse); 748d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy Rect r(u1, v1, u2, v2); 749d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy m.mapRect(r); 750d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 751d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 = r.left; 752d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 = r.right; 753d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 = r.top; 754d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 = r.bottom; 755d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 756d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 757d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 /= width; 758d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 /= width; 759d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 /= height; 760d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 /= height; 761d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 762d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 763d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 764d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha, mode, texture->blend, 765ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 766d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 767d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 768d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 769d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 77082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 771a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 77282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 77382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 77482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 77582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 776a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 777ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 77885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 77985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 780bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 781a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 782a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 783ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 784f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 785f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 786f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 787a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 788f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 789bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 790bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 791bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 792d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy useProgram(mDrawTextureProgram); 793d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 794bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 795a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 796a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy bindTexture(texture, mShaderTileX, mShaderTileY); 797c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 798a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 799d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glUniform4f(mDrawTextureProgram->color, alpha, alpha, alpha, alpha); 800bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 801d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->position, 2, GL_FLOAT, GL_FALSE, 802ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 803d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->texCoords, 2, GL_FLOAT, GL_FALSE, 804ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, texCoords); 805bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 806f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 807ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 808f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 809f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 810f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 81182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 81282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 81382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 81482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // In theory we should not blend if the mode is Src, but it's rare enough 81582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // that it's not worth it 81682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 81782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 81882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 81982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 82082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 82182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 82282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 82382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 82482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 82582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 82682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 82782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 82882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 82982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 83082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 83182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 83282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 83382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 83482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 83582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 83682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 837bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 838bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 839d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guybool OpenGLRenderer::useProgram(const sp<Program>& program) { 840d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 841d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram->remove(); 842d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 843d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 8446926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 845260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 8466926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 847260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 848260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 849026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 850ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 85182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 85282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 85382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 85482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 8558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 8568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 8588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 8598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 8608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 8618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 8628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 8638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 8648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 8668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 8678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 8688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 8698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 8708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 8718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 8728ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 8738ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 8748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 8758ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 876026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 877026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 878a1db574036c9bc2d397b69f8200594027e1fff16Romain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT) { 879a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy if (texture != mLastTexture) { 880a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 881a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy mLastTexture = texture; 882a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy } 883a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy // TODO: Don't set the texture parameters every time 884a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 885a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 886a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 887a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 8889d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 889e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 890