OpenGLRenderer.cpp revision 7fac2e18339f765320d759e8d4c090f92431959e
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> 245cbbce535744b89df5ecea95de21ee3733298260Romain Guy 25121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#include <cutils/properties.h> 265cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include <utils/Log.h> 2785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 2885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include "OpenGLRenderer.h" 29e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 30e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 319d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 329d5316e3f56d138504565ff311145ac01621dff4Romain Guy 339d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 349d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 359d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 369d5316e3f56d138504565ff311145ac01621dff4Romain Guy 37121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// These properties are defined in mega-bytes 38121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size" 39121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size" 40121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 41dda570201ac851dd85af3861f7e575721d3345daRomain Guy#define DEFAULT_TEXTURE_CACHE_SIZE 20 42dda570201ac851dd85af3861f7e575721d3345daRomain Guy#define DEFAULT_LAYER_CACHE_SIZE 10 43f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy#define DEFAULT_PATCH_CACHE_SIZE 100 44dda570201ac851dd85af3861f7e575721d3345daRomain Guy 45121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// Converts a number of mega-bytes into bytes 46121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define MB(s) s * 1024 * 1024 47121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 48dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Generates simple and textured vertices 49bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define SV(x, y) { { x, y } } 50bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 519d5316e3f56d138504565ff311145ac01621dff4Romain Guy 529d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 549d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 559d5316e3f56d138504565ff311145ac01621dff4Romain Guy 56026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const SimpleVertex gDrawColorVertices[] = { 57bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 0.0f), 58bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 0.0f), 59bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 1.0f), 60bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 1.0f) 619d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; 62026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexStride = sizeof(SimpleVertex); 63026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexCount = 4; 649d5316e3f56d138504565ff311145ac01621dff4Romain Guy 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 67026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const TextureVertex gDrawTextureVertices[] = { 68c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 69c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 70c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 71c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 72bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexStride = sizeof(TextureVertex); 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexCount = 4; 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 86026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 87026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 88026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 89026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 90026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 91026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 92e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 93d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guystatic const GLint gTileModes[] = { 94d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_CLAMP_TO_EDGE, // == SkShader::kClamp_TileMode 95d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_REPEAT, // == SkShader::kRepeat_Mode 96d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy GL_MIRRORED_REPEAT // == SkShader::kMirror_TileMode 97d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 98d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 99f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 100f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 101f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 103dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 10482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend(false), mLastSrcMode(GL_ZERO), mLastDstMode(GL_ZERO), 105dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 106f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), 107f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mPatchCache(DEFAULT_PATCH_CACHE_SIZE) { 10885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1099d5316e3f56d138504565ff311145ac01621dff4Romain Guy 110121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 111121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 112dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 113121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy mTextureCache.setMaxSize(MB(atoi(property))); 114dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 115dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default texture cache size of %dMB", DEFAULT_TEXTURE_CACHE_SIZE); 116dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 117dda570201ac851dd85af3861f7e575721d3345daRomain Guy 118dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 119dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 120dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.setMaxSize(MB(atoi(property))); 121dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 122dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default layer cache size of %dMB", DEFAULT_LAYER_CACHE_SIZE); 123121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 124121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 125d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawColorProgram = new DrawColorProgram; 126d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram = new DrawTextureProgram; 127d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = mDrawTextureProgram; 128d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 129d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = kShaderNone; 130d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileX = SkShader::kClamp_TileMode; 131d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileY = SkShader::kClamp_TileMode; 132d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = NULL; 133d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = NULL; 134026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1351e79386ba34f0db38c1b35b22cdf122632534354Romain Guy mLastTexture = 0; 1361e79386ba34f0db38c1b35b22cdf122632534354Romain Guy 137026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy memcpy(mDrawTextureVertices, gDrawTextureVertices, sizeof(gDrawTextureVertices)); 138e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 139e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 14085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 14185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 142ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 143ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 144dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 1456926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy mPatchCache.clear(); 146e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 147e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 148f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 149f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 150f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 151f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 15285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 15308ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 15408ae317c21ec3086b5017672bba87420cc38a407Romain Guy 155260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 156bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 157bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 158bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 159f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mFirstSnapshot.height = height; 160e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 161e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 16285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1637ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = &mFirstSnapshot; 1647ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 165f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 16608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 167bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 16808ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 16908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 170bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 17108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 172c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 173f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 174bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mSnapshot->clipRect.set(0.0f, 0.0f, mWidth, mHeight); 175bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 176bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 177f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 178f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 179f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 180f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1827ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 183bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 184bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 185bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1867ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 187bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 188bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 189bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 1907ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 191bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1927ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 1937ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 1947ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 196bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 197bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 1987ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2027ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 2037ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 2047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 2077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 2087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 210bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 211bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 2127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 2137ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 214bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 215bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 216bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 218bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 219f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 221bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 223bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 224f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 225260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 226f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 227f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 228bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 229d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 230d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 231bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 232d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 233d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2345cbbce535744b89df5ecea95de21ee3733298260Romain Guy 235d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 236d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2375cbbce535744b89df5ecea95de21ee3733298260Romain Guy 238d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 239dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 240dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 241dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 242dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 243dda570201ac851dd85af3861f7e575721d3345daRomain Guy 244d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 245d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 246d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2475cbbce535744b89df5ecea95de21ee3733298260Romain Guy 248d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 249079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = previous->clipRect; 250d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 251bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 252dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 253dda570201ac851dd85af3861f7e575721d3345daRomain Guy 254d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Compute the correct texture coordinates for the FBO texture 255d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // The texture is currently as big as the window but drawn with 256d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // a quad of the appropriate size 257dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 258dda570201ac851dd85af3861f7e575721d3345daRomain Guy 259dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 260a979474f15b454c8e2963f239a3770e200bb227cRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 261bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 262dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 263f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // Failing to add the layer to the cache should happen only if the 264f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // layer is too large 265dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 266dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 267bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 268dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 269dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 270dda570201ac851dd85af3861f7e575721d3345daRomain Guy 271dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 272dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 273bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 274bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 275f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 276bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 277bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 278bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 279bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 280bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 282d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 283d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 284d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 285d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 286d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 287d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 288d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 289d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 290d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 291d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 293d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 294d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 298d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 299d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 300bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 301bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 302bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 303bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 304bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 305d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 306d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 307d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 308bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 309d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 310d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 311bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 312d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 313dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 314dda570201ac851dd85af3861f7e575721d3345daRomain Guy 315f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 316f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 317dda570201ac851dd85af3861f7e575721d3345daRomain Guy 318f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 319f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 320f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 321bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 322bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 323f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 324f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 325f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 326f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 327f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 328f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 329f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 330f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 331dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 332d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 333dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 334dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 335dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 336dda570201ac851dd85af3861f7e575721d3345daRomain Guy 337dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 338dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 339d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 340f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 341f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 342f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 343f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 344079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 345f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 346f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 347f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 348079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->flags = Snapshot::kFlagDirtyOrtho | Snapshot::kFlagClipSet; 349260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mSnapshot->orthoMatrix.load(mOrthoMatrix); 350f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 351f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 352260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 353f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 354d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 355bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 356bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 357bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 358f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 359f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 360f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 361f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3627ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 363f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 364f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 365f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3667ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 367f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 368f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 369f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3707ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 372f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 373f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3747ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 375f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 376f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 377f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3787ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 380f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 381f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3827ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3837ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 384f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 385f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 386f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 387f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 388f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 389f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 390bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 391079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 392f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 3939d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 3949d5316e3f56d138504565ff311145ac01621dff4Romain Guy 3959d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 396079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 397bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 398bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 399c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 400c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 401079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mSnapshot->transform.mapRect(r); 402c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 403c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 404c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 405079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 406079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4097ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 410079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 411e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 412e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 413f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 414f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 415f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 416f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 417c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4186926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4196926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4206926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4216926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4226926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4236926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 425f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4266926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4278ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4288ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 429f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 430f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 431f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 432f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 433f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4376926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 438f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 43982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 440f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 441f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4438ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 445f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4466926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4486926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4496926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 450f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 454c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 459c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 46282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 465ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 466ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 467deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 468deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4696926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4706926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4716926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4726926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 473f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 474f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 475f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 476f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 477f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 478f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 479f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 480fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 481fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 482f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 483f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 484f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 485a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 486a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 48716202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 488f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 489f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 49085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 491079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 4923d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 493c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 4949d5316e3f56d138504565ff311145ac01621dff4Romain Guy 495bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 4966926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4976926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4986926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4996926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 500026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 501026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 502026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 503026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 504026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 505026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 506026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 507026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 508026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 509026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 510026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 511d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 512026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 513026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 514026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 515026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 516c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5179d5316e3f56d138504565ff311145ac01621dff4Romain Guy 5186926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 519d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 520d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 521d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 522d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 523d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShader = OpenGLRenderer::kShaderNone; 524d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = false; 525d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileX = SkShader::kClamp_TileMode; 526d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileY = SkShader::kClamp_TileMode; 527d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 528d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 529d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::setupBitmapShader(SkBitmap* bitmap, SkShader::TileMode tileX, 530d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkShader::TileMode tileY, SkMatrix* matrix, bool hasAlpha) { 5317fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShader = OpenGLRenderer::kShaderBitmap; 532d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBlend = hasAlpha; 533d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderBitmap = bitmap; 534d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileX = tileX; 535d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderTileY = tileY; 536d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix = matrix; 537d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 538d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 5397fac2e18339f765320d759e8d4c090f92431959eRomain Guyvoid OpenGLRenderer::setupLinearGradientShader(float* bounds, uint32_t* colors, 5407fac2e18339f765320d759e8d4c090f92431959eRomain Guy float* positions, SkShader::TileMode tileMode, SkMatrix* matrix, bool hasAlpha) { 5417fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShader = OpenGLRenderer::kShaderLinearGradient; 5427fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderBlend = hasAlpha; 5437fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderTileX = tileMode; 5447fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderTileY = tileMode; 5457fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderMatrix = matrix; 5467fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderBounds = bounds; 5477fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderColors = colors; 5487fac2e18339f765320d759e8d4c090f92431959eRomain Guy mShaderPositions = positions; 5497fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 5507fac2e18339f765320d759e8d4c090f92431959eRomain Guy 551d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 5526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 5536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 5546926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 555026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 5563d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 557d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 558d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShader != kShaderNone) { 559d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 560d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 561d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 562d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 563026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 564d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 565d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 566d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 567d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 568d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 569d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy switch (mShader) { 5707fac2e18339f765320d759e8d4c090f92431959eRomain Guy case OpenGLRenderer::kShaderBitmap: 571d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawBitmapShader(left, top, right, bottom, a, mode); 572d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy return; 5737fac2e18339f765320d759e8d4c090f92431959eRomain Guy case OpenGLRenderer::kShaderLinearGradient: 5747fac2e18339f765320d759e8d4c090f92431959eRomain Guy // TODO: Generate gradient texture, set appropriate shader 5757fac2e18339f765320d759e8d4c090f92431959eRomain Guy break; 576d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy default: 577d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy break; 578d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 579026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 5806926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy // Pre-multiplication happens when setting the shader color 581d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy chooseBlending(alpha < 255 || mShaderBlend, mode); 5829d5316e3f56d138504565ff311145ac01621dff4Romain Guy 583c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.loadTranslate(left, top, 0.0f); 584c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 5859d5316e3f56d138504565ff311145ac01621dff4Romain Guy 586079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (!useProgram(mDrawColorProgram)) { 587d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLvoid* p = &gDrawColorVertices[0].position[0]; 588079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glVertexAttribPointer(mDrawColorProgram->position, 2, GL_FLOAT, GL_FALSE, 589d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy gDrawColorVertexStride, p); 590d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 591d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 5923d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy if (!ignoreTransform) { 593079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 5943d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } else { 5953d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy mat4 identity; 596079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy mDrawColorProgram->set(mOrthoMatrix, mModelView, identity); 5973d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy } 5989d5316e3f56d138504565ff311145ac01621dff4Romain Guy 599079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy glUniform4f(mDrawColorProgram->color, r, g, b, a); 6009d5316e3f56d138504565ff311145ac01621dff4Romain Guy 601c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawColorVertexCount); 60282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 603026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 604d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::drawBitmapShader(float left, float top, float right, float bottom, 605d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float alpha, SkXfermode::Mode mode) { 606d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const Texture* texture = mTextureCache.get(mShaderBitmap); 607d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 608d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float width = texture->width; 609d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const float height = texture->height; 610d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 611d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // This could be done in the vertex shader but we have only 4 vertices 612d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u1 = 0.0f; 613d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v1 = 0.0f; 614d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float u2 = right - left; 615d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy float v2 = bottom - top; 616d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 617d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (mShaderMatrix) { 618d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy SkMatrix inverse; 619d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mShaderMatrix->invert(&inverse); 620d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mat4 m(inverse); 621d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy Rect r(u1, v1, u2, v2); 622d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy m.mapRect(r); 623d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 624d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 = r.left; 625d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 = r.right; 626d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 = r.top; 627d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 = r.bottom; 628d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 629d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 630d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u1 /= width; 631d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy u2 /= width; 632d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v1 /= height; 633d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy v2 /= height; 634d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 635d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 636d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 637d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha, mode, texture->blend, 638d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 639d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 640d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 641d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 642d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 64382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 644a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 64582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 64682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 64782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 64882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 649a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 650a979474f15b454c8e2963f239a3770e200bb227cRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 65185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 65285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 653bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 654a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 655a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 656f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 657f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 658f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 659f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 660a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 661f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 662bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 663bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 664bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 665d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy useProgram(mDrawTextureProgram); 666d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mDrawTextureProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 667bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 668a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 669bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 6701e79386ba34f0db38c1b35b22cdf122632534354Romain Guy if (texture != mLastTexture) { 6711e79386ba34f0db38c1b35b22cdf122632534354Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 6721e79386ba34f0db38c1b35b22cdf122632534354Romain Guy mLastTexture = texture; 6731e79386ba34f0db38c1b35b22cdf122632534354Romain Guy } 6741e79386ba34f0db38c1b35b22cdf122632534354Romain Guy // TODO: Don't set the texture parameters every time 675d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, gTileModes[mShaderTileX]); 676d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, gTileModes[mShaderTileY]); 677c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 678a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 679d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glUniform4f(mDrawTextureProgram->color, alpha, alpha, alpha, alpha); 680bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 681d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->position, 2, GL_FLOAT, GL_FALSE, 682f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, vertices); 683d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy glVertexAttribPointer(mDrawTextureProgram->texCoords, 2, GL_FLOAT, GL_FALSE, 684f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, texCoords); 685bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 686f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 687f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 688f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 689f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 690f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 69182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 69282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 69382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 69482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // In theory we should not blend if the mode is Src, but it's rare enough 69582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy // that it's not worth it 69682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 69782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 69882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!mBlend) { 69982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 70082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 70182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 70282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 70382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 70482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 70582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 70682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 70782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 70882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (sourceMode != mLastSrcMode || destMode != mLastDstMode) { 70982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 71082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastSrcMode = sourceMode; 71182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mLastDstMode = destMode; 71282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 71382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } else if (mBlend) { 71482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 71582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 71682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy mBlend = blend; 717bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 718bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 719d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guybool OpenGLRenderer::useProgram(const sp<Program>& program) { 720d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 721d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram->remove(); 722d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 723d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy mCurrentProgram = program; 7246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 725260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 7266926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 727260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 728260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 729026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 73082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex* v = &mDrawTextureVertices[0]; 73182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 73282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 73382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 73482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 7358ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 7368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 7378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 7388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 7398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 7408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 7418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 7428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 7438ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 7448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 7458ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 7468ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 7478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 7488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 7498ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 7508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 7518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 7528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 7538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 7548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 7558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 756026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 757026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 7589d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 759e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 760