OpenGLRenderer.cpp revision f18fd99b5c182329cd8936a9611f0103d8ece44a
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 43dda570201ac851dd85af3861f7e575721d3345daRomain Guy 44121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy// Converts a number of mega-bytes into bytes 45121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy#define MB(s) s * 1024 * 1024 46121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 47dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Generates simple and textured vertices 48bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define SV(x, y) { { x, y } } 49bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 509d5316e3f56d138504565ff311145ac01621dff4Romain Guy 519d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 529d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 549d5316e3f56d138504565ff311145ac01621dff4Romain Guy 55026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const SimpleVertex gDrawColorVertices[] = { 56bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 0.0f), 57bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 0.0f), 58bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(0.0f, 1.0f), 59bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy SV(1.0f, 1.0f) 609d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; 61026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexStride = sizeof(SimpleVertex); 62026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawColorVertexCount = 4; 639d5316e3f56d138504565ff311145ac01621dff4Romain Guy 64026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const TextureVertex gDrawTextureVertices[] = { 67c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 68c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 69c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 70c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 71bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexStride = sizeof(TextureVertex); 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const GLsizei gDrawTextureVertexCount = 4; 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 86026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 87026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 88026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 89026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 90026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 91e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 92f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 93f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 94f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 95f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 96dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 97dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 98dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)) { 9985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1009d5316e3f56d138504565ff311145ac01621dff4Romain Guy 101121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 102121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 103dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 104121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy mTextureCache.setMaxSize(MB(atoi(property))); 105dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 106dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default texture cache size of %dMB", DEFAULT_TEXTURE_CACHE_SIZE); 107dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 108dda570201ac851dd85af3861f7e575721d3345daRomain Guy 109dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 110dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 111dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.setMaxSize(MB(atoi(property))); 112dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 113dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default layer cache size of %dMB", DEFAULT_LAYER_CACHE_SIZE); 114121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 115121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 1169d5316e3f56d138504565ff311145ac01621dff4Romain Guy mDrawColorShader = new DrawColorProgram; 117bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mDrawTextureShader = new DrawTextureProgram; 118026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 119026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy memcpy(mDrawTextureVertices, gDrawTextureVertices, sizeof(gDrawTextureVertices)); 120e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 121e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 12285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 12385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 124ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 125ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 126dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 127e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 128e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 129f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 130f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 131f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 132f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 13385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 13408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 13508ae317c21ec3086b5017672bba87420cc38a407Romain Guy 13608ae317c21ec3086b5017672bba87420cc38a407Romain Guy mat4 ortho; 137c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy ortho.loadOrtho(0, width, height, 0, -1, 1); 13808ae317c21ec3086b5017672bba87420cc38a407Romain Guy ortho.copyTo(mOrthoMatrix); 139bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 140bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 141bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 142f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mFirstSnapshot.height = height; 143e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 144e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 14585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1467ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = &mFirstSnapshot; 1477ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 148f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 14908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 150bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 15108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 15208ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 153bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 15408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 155c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 156f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 157bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mSnapshot->clipRect.set(0.0f, 0.0f, mWidth, mHeight); 158bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 159bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 160f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 161f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 162f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 163f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 164bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1657ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 166bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 167bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 168bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1697ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 170bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 171bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 172bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 1737ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 174bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 1767ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 1777ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 178bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 179bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 180bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 1817ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 182bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1837ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 184bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1857ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 1867ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 1877ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 188bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1897ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 1907ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 1917ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 192bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 193bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 194bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 1957ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 1967ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 197bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 198bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 201bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 202f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 203bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 204bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2057ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 206bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 207f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 208f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy memcpy(mOrthoMatrix, current->orthoMatrix, sizeof(mOrthoMatrix)); 209f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 210f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 211bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 212d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 213d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 214bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 215d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 216d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2175cbbce535744b89df5ecea95de21ee3733298260Romain Guy 218d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 219d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2205cbbce535744b89df5ecea95de21ee3733298260Romain Guy 221d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 222dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 223dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 224dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 225dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 226dda570201ac851dd85af3861f7e575721d3345daRomain Guy 227d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 228d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 229d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2305cbbce535744b89df5ecea95de21ee3733298260Romain Guy 231d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 232d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const Rect& clip = previous->getMappedClip(); 233d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 234bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 235dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 236dda570201ac851dd85af3861f7e575721d3345daRomain Guy 237d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Compute the correct texture coordinates for the FBO texture 238d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // The texture is currently as big as the window but drawn with 239d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // a quad of the appropriate size 240dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 241dda570201ac851dd85af3861f7e575721d3345daRomain Guy 242dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 243dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend, true); 244bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 245dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 246f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // Failing to add the layer to the cache should happen only if the 247f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // layer is too large 248dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 249dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 250bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 251dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 252dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 253dda570201ac851dd85af3861f7e575721d3345daRomain Guy 254dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 255dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 256bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 257bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 258f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 259bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 260bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 261bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 262bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 263bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 264d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 265d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 266d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 267d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 268d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 269d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 270d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 271d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 272d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 273d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 274d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 275d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 276d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 277d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 278d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 279d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 280d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 282d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 283bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 284bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 285bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 286bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 287bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 288d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 289d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 290d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 291bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 293d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 294bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 295dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Requesting layer %dx%d", size.width, size.height); 296dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 297dda570201ac851dd85af3861f7e575721d3345daRomain Guy 298f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 299f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 300dda570201ac851dd85af3861f7e575721d3345daRomain Guy 301f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // TODO VERY IMPORTANT: Fix TextView to not call saveLayer() all the time 302f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 303f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 304f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 305bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 306bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 307f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 308f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 309f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 310f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 311f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 312f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 313f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 314f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 315dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 316d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 317dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 318dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 319dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 320dda570201ac851dd85af3861f7e575721d3345daRomain Guy 321dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 322dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 323d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 324f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 325f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 326f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 327f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 328f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->clipRect.set(left, top, right, bottom); 329f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 330f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 331f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 332f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->flags = Snapshot::kFlagDirtyTransform | Snapshot::kFlagDirtyOrtho | 333f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Snapshot::kFlagClipSet; 334f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy memcpy(mSnapshot->orthoMatrix, mOrthoMatrix, sizeof(mOrthoMatrix)); 335f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 336f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 337f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mat4 ortho; 338f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy ortho.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 339f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy ortho.copyTo(mOrthoMatrix); 340f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 341d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 342bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 343bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 344bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 345f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 346f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 347f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 348f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3497ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 3507ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 351f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 352f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 353f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3547ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 3557ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 356f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 357f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 358f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3597ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 3607ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 361f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 362f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 363f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3647ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 3657ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 366f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 367f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 368f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3697ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 370f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 372f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3737ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3747ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 3757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 376f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 377f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 378f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 380f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 381f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 382bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 3837ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const Rect& clip = mSnapshot->getMappedClip(); 384f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 3859d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 3869d5316e3f56d138504565ff311145ac01621dff4Romain Guy 3879d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 3887ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSnapshot->clipRect; 389bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 390bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 391c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 392c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy /* 393c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * The documentation of quickReject() indicates that the specified rect 394c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * is transformed before being compared to the clip rect. However, the 395c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * clip rect is not stored transformed in the snapshot and can thus be 396c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * compared directly 397c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * 398c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * The following code can be used instead to performed a mapped comparison: 399c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * 400c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * mSnapshot->transform.mapRect(r); 401c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * const Rect& clip = mSnapshot->getMappedClip(); 402c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * return !clip.intersects(r); 403c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy */ 404c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 405c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 406c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 407c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 408bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom) { 4097ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool clipped = mSnapshot->clipRect.intersect(left, top, right, bottom); 4107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4117ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagClipSet; 4127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4137ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 4147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return clipped; 415e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 416e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 417f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 418f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 419f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 420f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 421c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 422f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 423c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4248ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int alpha; 425c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy SkXfermode::Mode mode; 4268ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy getAlphaAndMode(paint, &alpha, &mode); 4278ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4288ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy drawTextureRect(left, top, left + texture->width, top + texture->height, texture->id, 4298ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy alpha / 255.0f, mode, texture->blend, true); 4308ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4318ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 432f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 433f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 434f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 435f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 436f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 437f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 438f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 439f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy int alpha; 440f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy SkXfermode::Mode mode; 441f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy getAlphaAndMode(paint, &alpha, &mode); 442f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 443f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture->id, 444f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy alpha / 255.0f, mode, texture->blend, true); 445f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 446f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4498ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 450f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 451f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 453c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy int alpha; 4548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy SkXfermode::Mode mode; 4558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy getAlphaAndMode(paint, &alpha, &mode); 456c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 459c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 464c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture->id, 468c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy alpha / 255.0f, mode, texture->blend, true); 4698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 471ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 472ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 473deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 474deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 475deba785f122a47915756ffd991f5540d952cf937Romain Guy // TODO: Implement 476deba785f122a47915756ffd991f5540d952cf937Romain Guy LOGD("Draw 9patch, paddingLeft=%d", patch->paddingLeft); 477deba785f122a47915756ffd991f5540d952cf937Romain Guy} 478deba785f122a47915756ffd991f5540d952cf937Romain Guy 47985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 480c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy const Rect& clip = mSnapshot->clipRect; 481026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode); 482c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 4839d5316e3f56d138504565ff311145ac01621dff4Romain Guy 484bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 485026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 486026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 487026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 488026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 489026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 490026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 491026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 492026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 493026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 494026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 495026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 496026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (((color >> 24) & 0xFF) == 255) { 497026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 498026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 499026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 500026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 501c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5029d5316e3f56d138504565ff311145ac01621dff4Romain Guy 503026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 504026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color, SkXfermode::Mode mode) { 505026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 506026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool blend = alpha < 255 || mode != SkXfermode::kSrcOver_Mode; 507026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 508026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat a = alpha / 255.0f; 509026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat r = ((color >> 16) & 0xFF) / 255.0f; 510026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat g = ((color >> 8) & 0xFF) / 255.0f; 511026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat b = ((color ) & 0xFF) / 255.0f; 512026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 513026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (blend) { 514026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glEnable(GL_BLEND); 515026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glBlendFunc(gBlends[mode].src, gBlends[mode].dst); 516026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 5179d5316e3f56d138504565ff311145ac01621dff4Romain Guy 518c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.loadTranslate(left, top, 0.0f); 519c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 5209d5316e3f56d138504565ff311145ac01621dff4Romain Guy 521c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mDrawColorShader->use(&mOrthoMatrix[0], &mModelView.data[0], &mSnapshot->transform.data[0]); 5229d5316e3f56d138504565ff311145ac01621dff4Romain Guy 523c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy const GLvoid* p = &gDrawColorVertices[0].position[0]; 5249d5316e3f56d138504565ff311145ac01621dff4Romain Guy 525c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glEnableVertexAttribArray(mDrawColorShader->position); 526c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glVertexAttribPointer(mDrawColorShader->position, 2, GL_FLOAT, GL_FALSE, 527c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy gDrawColorVertexStride, p); 528c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glVertexAttrib4f(mDrawColorShader->color, r, g, b, a); 5299d5316e3f56d138504565ff311145ac01621dff4Romain Guy 530c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawColorVertexCount); 5319d5316e3f56d138504565ff311145ac01621dff4Romain Guy 532c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDisableVertexAttribArray(mDrawColorShader->position); 533026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 534026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (blend) { 535026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glDisable(GL_BLEND); 536026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 53785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 53885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 539bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 540c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, bool isPremultiplied) { 541bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 542bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 543bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 544bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mDrawTextureShader->use(&mOrthoMatrix[0], &mModelView.data[0], &mSnapshot->transform.data[0]); 545bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 546c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy if (blend || alpha < 1.0f || mode != SkXfermode::kSrcOver_Mode) { 547c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy GLenum sourceMode = gBlends[mode].src; 548c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 549c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy sourceMode = GL_SRC_ALPHA; 550c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy } 551d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 552c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy glEnable(GL_BLEND); 553c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy glBlendFunc(sourceMode, gBlends[mode].dst); 554c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy } 555bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 556bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 557bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 558c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy // TODO handle tiling and filtering here 559c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 560bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glActiveTexture(GL_TEXTURE0); 561bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glUniform1i(mDrawTextureShader->sampler, 0); 562bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 563026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLvoid* p = &mDrawTextureVertices[0].position[0]; 564026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLvoid* t = &mDrawTextureVertices[0].texture[0]; 565bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 566bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glEnableVertexAttribArray(mDrawTextureShader->position); 567bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttribPointer(mDrawTextureShader->position, 2, GL_FLOAT, GL_FALSE, 568bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy gDrawTextureVertexStride, p); 569bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 570bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glEnableVertexAttribArray(mDrawTextureShader->texCoords); 571bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttribPointer(mDrawTextureShader->texCoords, 2, GL_FLOAT, GL_FALSE, 572bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy gDrawTextureVertexStride, t); 573bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 574bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttrib4f(mDrawTextureShader->color, 1.0f, 1.0f, 1.0f, alpha); 575bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 576bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 577bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 578bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisableVertexAttribArray(mDrawTextureShader->position); 579bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisableVertexAttribArray(mDrawTextureShader->texCoords); 580bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 581bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glBindTexture(GL_TEXTURE_2D, 0); 582bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisable(GL_BLEND); 583bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 584bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 585026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 586026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[0].texture[0] = u1; 5878ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[0].texture[1] = v1; 588026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[1].texture[0] = u2; 5898ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[1].texture[1] = v1; 590026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[2].texture[0] = u1; 5918ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[2].texture[1] = v2; 592026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[3].texture[0] = u2; 5938ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[3].texture[1] = v2; 5948ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 5958ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5968ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 5978ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 5988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 5998ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 6008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 6018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 6028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 6038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 6048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 6058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 6068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 6078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 6088ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 6098ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 6108ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 6118ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 6128ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 6138ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 6148ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 615026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 616026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 6179d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 618e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 619