OpenGLRenderer.cpp revision f7f93556c8fcc640ab5adef79d021a80a72a645a
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 93f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 94f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 95f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 96f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 97dda570201ac851dd85af3861f7e575721d3345daRomain GuyOpenGLRenderer::OpenGLRenderer(): 98dda570201ac851dd85af3861f7e575721d3345daRomain Guy mTextureCache(MB(DEFAULT_TEXTURE_CACHE_SIZE)), 99f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mLayerCache(MB(DEFAULT_LAYER_CACHE_SIZE)), 100f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mPatchCache(DEFAULT_PATCH_CACHE_SIZE) { 10185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1029d5316e3f56d138504565ff311145ac01621dff4Romain Guy 103121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy char property[PROPERTY_VALUE_MAX]; 104121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy if (property_get(PROPERTY_TEXTURE_CACHE_SIZE, property, NULL) > 0) { 105dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting texture cache size to %sMB", property); 106121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy mTextureCache.setMaxSize(MB(atoi(property))); 107dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 108dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default texture cache size of %dMB", DEFAULT_TEXTURE_CACHE_SIZE); 109dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 110dda570201ac851dd85af3861f7e575721d3345daRomain Guy 111dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, NULL) > 0) { 112dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Setting layer cache size to %sMB", property); 113dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.setMaxSize(MB(atoi(property))); 114dda570201ac851dd85af3861f7e575721d3345daRomain Guy } else { 115dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGD(" Using default layer cache size of %dMB", DEFAULT_LAYER_CACHE_SIZE); 116121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy } 117121e2242565d5f09ad83a2d33ecd2225838802c5Romain Guy 1189d5316e3f56d138504565ff311145ac01621dff4Romain Guy mDrawColorShader = new DrawColorProgram; 119bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mDrawTextureShader = new DrawTextureProgram; 120026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 121026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy memcpy(mDrawTextureVertices, gDrawTextureVertices, sizeof(gDrawTextureVertices)); 122e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 123e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 12485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 12585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 126ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 127ce0537b80087a6225273040a987414b1dd081aa0Romain Guy mTextureCache.clear(); 128dda570201ac851dd85af3861f7e575721d3345daRomain Guy mLayerCache.clear(); 129e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 130e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 131f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 132f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 133f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 134f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 13585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 13608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 13708ae317c21ec3086b5017672bba87420cc38a407Romain Guy 13808ae317c21ec3086b5017672bba87420cc38a407Romain Guy mat4 ortho; 139c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy ortho.loadOrtho(0, width, height, 0, -1, 1); 14008ae317c21ec3086b5017672bba87420cc38a407Romain Guy ortho.copyTo(mOrthoMatrix); 141bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 142bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 143bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 144f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mFirstSnapshot.height = height; 145e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 146e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 14785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1487ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = &mFirstSnapshot; 1497ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSaveCount = 0; 150f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 15108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 152bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 15308ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 15408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 155bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 15608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 157c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 158f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 159bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mSnapshot->clipRect.set(0.0f, 0.0f, mWidth, mHeight); 160bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 161bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 162f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 163f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 164f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 165f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 166bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1677ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 168bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 169bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 170bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1717ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 172bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 173bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 174bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 1757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (mSaveCount == 0) return; 176bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1777ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreSnapshot()) { 1787ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 1797ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 180bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 182bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 1837ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (saveCount <= 0 || saveCount > mSaveCount) return; 184bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1857ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = false; 186bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1877ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy while (mSaveCount != saveCount - 1) { 1887ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy restoreClip |= restoreSnapshot(); 1897ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 190bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1917ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (restoreClip) { 1927ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 1937ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 194bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 196bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 1977ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 1987ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return ++mSaveCount; 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 200bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2027ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 203bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 204f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 206bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 208bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 209f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 210f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy memcpy(mOrthoMatrix, current->orthoMatrix, sizeof(mOrthoMatrix)); 211f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 212f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 213bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 214d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 215d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 216bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 217d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSnapshot = previous; 218d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mSaveCount--; 2195cbbce535744b89df5ecea95de21ee3733298260Romain Guy 220d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return restoreClip; 221d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2225cbbce535744b89df5ecea95de21ee3733298260Romain Guy 223d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 224dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!current->layer) { 225dda570201ac851dd85af3861f7e575721d3345daRomain Guy LOGE("Attempting to compose a layer that does not exist"); 226dda570201ac851dd85af3861f7e575721d3345daRomain Guy return; 227dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 228dda570201ac851dd85af3861f7e575721d3345daRomain Guy 229d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Unbind current FBO and restore previous one 230d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 231d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 2325cbbce535744b89df5ecea95de21ee3733298260Romain Guy 233d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Restore the clip from the previous snapshot 234d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const Rect& clip = previous->getMappedClip(); 235d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 236bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 237dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer = current->layer; 238dda570201ac851dd85af3861f7e575721d3345daRomain Guy 239d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Compute the correct texture coordinates for the FBO texture 240d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // The texture is currently as big as the window but drawn with 241d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // a quad of the appropriate size 242dda570201ac851dd85af3861f7e575721d3345daRomain Guy const Rect& rect = layer->layer; 243dda570201ac851dd85af3861f7e575721d3345daRomain Guy 244dda570201ac851dd85af3861f7e575721d3345daRomain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 245dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->texture, layer->alpha, layer->mode, layer->blend, true); 246bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 247dda570201ac851dd85af3861f7e575721d3345daRomain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 248f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // Failing to add the layer to the cache should happen only if the 249f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy // layer is too large 250dda570201ac851dd85af3861f7e575721d3345daRomain Guy if (!mLayerCache.put(size, layer)) { 251dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Deleting layer"); 252bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 253dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteFramebuffers(1, &layer->fbo); 254dda570201ac851dd85af3861f7e575721d3345daRomain Guy glDeleteTextures(1, &layer->texture); 255dda570201ac851dd85af3861f7e575721d3345daRomain Guy 256dda570201ac851dd85af3861f7e575721d3345daRomain Guy delete layer; 257dda570201ac851dd85af3861f7e575721d3345daRomain Guy } 258bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 259bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 260f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 261bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 262bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 263bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 264bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 265bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 266d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 267d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 268d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 269d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 270d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 271d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 272d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 273d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 274d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 275d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 276d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 277d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 278d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 279d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 280d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 282d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 283d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 284d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 285bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 286bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 287bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 288bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 289bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 290d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 291d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 293bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 294d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 296bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 297dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Requesting layer %dx%d", size.width, size.height); 298dda570201ac851dd85af3861f7e575721d3345daRomain Guy LAYER_LOGD("Layer cache size = %d", mLayerCache.getSize()); 299dda570201ac851dd85af3861f7e575721d3345daRomain Guy 300f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 301f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 302dda570201ac851dd85af3861f7e575721d3345daRomain Guy 303f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy Layer* layer = mLayerCache.get(size, previousFbo); 304f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 305f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 306bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 307bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 308f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 309f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 310f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 311f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 312f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 313f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 314f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 315f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 316dda570201ac851dd85af3861f7e575721d3345daRomain Guy // Save the layer in the snapshot 317d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 318dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 319dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 320dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 321dda570201ac851dd85af3861f7e575721d3345daRomain Guy 322dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 323dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 324d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 325f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Creates a new snapshot to draw into the FBO 326f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy saveSnapshot(); 327f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // TODO: This doesn't preserve other transformations (check Skia first) 328f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->transform.loadTranslate(-left, -top, 0.0f); 329f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->clipRect.set(left, top, right, bottom); 330f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->height = bottom - top; 331f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 332f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 333f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mSnapshot->flags = Snapshot::kFlagDirtyTransform | Snapshot::kFlagDirtyOrtho | 334f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Snapshot::kFlagClipSet; 335f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy memcpy(mSnapshot->orthoMatrix, mOrthoMatrix, sizeof(mOrthoMatrix)); 336f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 337f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 338f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy mat4 ortho; 339f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy ortho.loadOrtho(0.0f, right - left, bottom - top, 0.0f, 0.0f, 1.0f); 340f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy ortho.copyTo(mOrthoMatrix); 341f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 342d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 343bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 344bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 345bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 346f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 347f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 348f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 349f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3507ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 3517ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 352f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 353f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 354f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3557ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 3567ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 357f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 358f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 359f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3607ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 3617ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 362f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 363f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 364f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3657ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 3667ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 367f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 368f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 369f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3707ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 372f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 373f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3747ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 3767ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagDirtyTransform; 377f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 378f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 380f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 381f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 382f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 383bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 3847ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy const Rect& clip = mSnapshot->getMappedClip(); 385f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 3869d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 3879d5316e3f56d138504565ff311145ac01621dff4Romain Guy 3889d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 3897ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSnapshot->clipRect; 390bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 391bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 392c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 393c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy /* 394c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * The documentation of quickReject() indicates that the specified rect 395c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * is transformed before being compared to the clip rect. However, the 396c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * clip rect is not stored transformed in the snapshot and can thus be 397c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * compared directly 398c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * 399c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * The following code can be used instead to performed a mapped comparison: 400c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * 401c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * mSnapshot->transform.mapRect(r); 402c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * const Rect& clip = mSnapshot->getMappedClip(); 403c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * return !clip.intersects(r); 404c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy */ 405c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy Rect r(left, top, right, bottom); 406c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 407c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 408c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 409bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom) { 4107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool clipped = mSnapshot->clipRect.intersect(left, top, right, bottom); 4117ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->flags |= Snapshot::kFlagClipSet; 4137ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 4157ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return clipped; 416e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 417e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 418f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 419f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 420f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 421f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 422c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 423f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 424c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int alpha; 426c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy SkXfermode::Mode mode; 4278ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy getAlphaAndMode(paint, &alpha, &mode); 4288ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4298ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy drawTextureRect(left, top, left + texture->width, top + texture->height, texture->id, 4308ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy alpha / 255.0f, mode, texture->blend, true); 4318ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4328ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 433f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 434f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 435f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 436f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 437f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 438f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 439f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 440f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy int alpha; 441f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy SkXfermode::Mode mode; 442f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy getAlphaAndMode(paint, &alpha, &mode); 443f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 444f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture->id, 445f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy alpha / 255.0f, mode, texture->blend, true); 446f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 447f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4498ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 451f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 452f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const Texture* texture = mTextureCache.get(bitmap); 4538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 454c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy int alpha; 4558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy SkXfermode::Mode mode; 4568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy getAlphaAndMode(paint, &alpha, &mode); 457c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 460c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 465c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture->id, 469c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy alpha / 255.0f, mode, texture->blend, true); 4708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 472ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 473ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 474deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 475deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 476f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const Texture* texture = mTextureCache.get(bitmap); 477f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 478f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 479f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 480f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 481f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 482f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const uint32_t width = patch->numXDivs; 483f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const uint32_t height = patch->numYDivs; 484f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 485f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy Patch* mesh = mPatchCache.get(patch); 486f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 487f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const uint32_t xStretchCount = (width + 1) >> 1; 488f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const uint32_t yStretchCount = (height + 1) >> 1; 489f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 490f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const int32_t* xDivs = &patch->xDivs[0]; 491f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const int32_t* yDivs = &patch->yDivs[0]; 492f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 493f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float xStretch = 0; 494f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float yStretch = 0; 495f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float xStretchTex = 0; 496f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float yStretchTex = 0; 497f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 498f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const float meshWidth = right - left; 499f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 500f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const float bitmapWidth = float(bitmap->width()); 501f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const float bitmapHeight = float(bitmap->height()); 502f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 503f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (xStretchCount > 0) { 504f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy uint32_t stretchSize = 0; 505f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy for (uint32_t i = 1; i < width; i += 2) { 506f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy stretchSize += xDivs[i] - xDivs[i - 1]; 507f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 508f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy xStretchTex = (stretchSize / bitmapWidth) / xStretchCount; 509f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const float fixed = bitmapWidth - stretchSize; 510f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy xStretch = (right - left - fixed) / xStretchCount; 511f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 512f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 513f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (yStretchCount > 0) { 514f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy uint32_t stretchSize = 0; 515f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy for (uint32_t i = 1; i < height; i += 2) { 516f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy stretchSize += yDivs[i] - yDivs[i - 1]; 517f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 518f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy yStretchTex = (stretchSize / bitmapHeight) / yStretchCount; 519f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const float fixed = bitmapHeight - stretchSize; 520f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy yStretch = (bottom - top - fixed) / yStretchCount; 521f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 522f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 523f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float vy = 0.0f; 524f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float ty = 0.0f; 525f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy TextureVertex* vertex = mesh->vertices; 526f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 527f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy generateVertices(vertex, 0.0f, 0.0f, xDivs, width, xStretch, xStretchTex, 528f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy meshWidth, bitmapWidth); 529f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vertex += width + 2; 530f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 531f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy for (uint32_t y = 0; y < height; y++) { 532f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (y & 1) { 533f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vy += yStretch; 534f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy ty += yStretchTex; 535f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 536f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const float step = float(yDivs[y]); 537f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vy += step; 538f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy ty += step / bitmapHeight; 539f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 540f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy generateVertices(vertex, vy, ty, xDivs, width, xStretch, xStretchTex, 541f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy meshWidth, bitmapWidth); 542f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vertex += width + 2; 543f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 544f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 545f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy generateVertices(vertex, bottom - top, 1.0f, xDivs, width, xStretch, xStretchTex, 546f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy meshWidth, bitmapWidth); 547f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 548f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 549f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 550f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha, mode, texture->blend, 551f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy true, &mesh->vertices[0].position[0], &mesh->vertices[0].texture[0], mesh->indices, 552f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy mesh->indicesCount); 553f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 554f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 555f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::generateVertices(TextureVertex* vertex, float y, float v, 556f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const int32_t xDivs[], uint32_t xCount, float xStretch, float xStretchTex, 557f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float width, float widthTex) { 558f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float vx = 0.0f; 559f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy float tx = 0.0f; 560f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 561f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy TextureVertex::set(vertex, vx, y, tx, v); 562f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vertex++; 563f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 564f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy for (uint32_t x = 0; x < xCount; x++) { 565f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (x & 1) { 566f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vx += xStretch; 567f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy tx += xStretchTex; 568f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 569f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy const float step = float(xDivs[x]); 570f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vx += step; 571f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy tx += step / widthTex; 572f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 573f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 574f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy TextureVertex::set(vertex, vx, y, tx, v); 575f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vertex++; 576f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 577f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 578f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy TextureVertex::set(vertex, width, y, 1.0f, v); 579f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy vertex++; 580deba785f122a47915756ffd991f5540d952cf937Romain Guy} 581deba785f122a47915756ffd991f5540d952cf937Romain Guy 58285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 583c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy const Rect& clip = mSnapshot->clipRect; 584026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode); 585c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5869d5316e3f56d138504565ff311145ac01621dff4Romain Guy 587bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 588026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 589026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 590026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 591026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 592026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 593026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 594026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 595026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 596026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 597026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 598026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 599026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (((color >> 24) & 0xFF) == 255) { 600026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 601026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 602026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 603026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 604c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 6059d5316e3f56d138504565ff311145ac01621dff4Romain Guy 606026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 607026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color, SkXfermode::Mode mode) { 608026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 609026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool blend = alpha < 255 || mode != SkXfermode::kSrcOver_Mode; 610026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 611026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat a = alpha / 255.0f; 612026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat r = ((color >> 16) & 0xFF) / 255.0f; 613026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat g = ((color >> 8) & 0xFF) / 255.0f; 614026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const GLfloat b = ((color ) & 0xFF) / 255.0f; 615026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 616026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (blend) { 617026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glEnable(GL_BLEND); 618026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glBlendFunc(gBlends[mode].src, gBlends[mode].dst); 619026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 6209d5316e3f56d138504565ff311145ac01621dff4Romain Guy 621c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.loadTranslate(left, top, 0.0f); 622c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 6239d5316e3f56d138504565ff311145ac01621dff4Romain Guy 624c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy mDrawColorShader->use(&mOrthoMatrix[0], &mModelView.data[0], &mSnapshot->transform.data[0]); 6259d5316e3f56d138504565ff311145ac01621dff4Romain Guy 626c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy const GLvoid* p = &gDrawColorVertices[0].position[0]; 6279d5316e3f56d138504565ff311145ac01621dff4Romain Guy 628c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glEnableVertexAttribArray(mDrawColorShader->position); 629c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glVertexAttribPointer(mDrawColorShader->position, 2, GL_FLOAT, GL_FALSE, 630c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy gDrawColorVertexStride, p); 631c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glVertexAttrib4f(mDrawColorShader->color, r, g, b, a); 6329d5316e3f56d138504565ff311145ac01621dff4Romain Guy 633c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawColorVertexCount); 6349d5316e3f56d138504565ff311145ac01621dff4Romain Guy 635c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glDisableVertexAttribArray(mDrawColorShader->position); 636026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 637026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (blend) { 638026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy glDisable(GL_BLEND); 639026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 64085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 64185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 642bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 643c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, bool isPremultiplied) { 644f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, isPremultiplied, 645f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy &mDrawTextureVertices[0].position[0], &mDrawTextureVertices[0].texture[0], NULL); 646f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 647f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 648f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 649f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, bool isPremultiplied, 650f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 651bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 652bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 653bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 654bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mDrawTextureShader->use(&mOrthoMatrix[0], &mModelView.data[0], &mSnapshot->transform.data[0]); 655bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 656c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy if (blend || alpha < 1.0f || mode != SkXfermode::kSrcOver_Mode) { 657c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy GLenum sourceMode = gBlends[mode].src; 658c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 659c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy sourceMode = GL_SRC_ALPHA; 660c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy } 661d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 662c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy glEnable(GL_BLEND); 663c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy glBlendFunc(sourceMode, gBlends[mode].dst); 664c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy } 665bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 666bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 667bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 668c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy // TODO handle tiling and filtering here 669c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 670bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glActiveTexture(GL_TEXTURE0); 671bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glUniform1i(mDrawTextureShader->sampler, 0); 672bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 673bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glEnableVertexAttribArray(mDrawTextureShader->position); 674bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttribPointer(mDrawTextureShader->position, 2, GL_FLOAT, GL_FALSE, 675f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, vertices); 676bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 677bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glEnableVertexAttribArray(mDrawTextureShader->texCoords); 678bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttribPointer(mDrawTextureShader->texCoords, 2, GL_FLOAT, GL_FALSE, 679f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy gDrawTextureVertexStride, texCoords); 680bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 681bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glVertexAttrib4f(mDrawTextureShader->color, 1.0f, 1.0f, 1.0f, alpha); 682bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 683f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 684f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gDrawTextureVertexCount); 685f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 686f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 687f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 688bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 689bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisableVertexAttribArray(mDrawTextureShader->position); 690bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisableVertexAttribArray(mDrawTextureShader->texCoords); 691bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 692bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glBindTexture(GL_TEXTURE_2D, 0); 693bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy glDisable(GL_BLEND); 694bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 695bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 696026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 697026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[0].texture[0] = u1; 6988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[0].texture[1] = v1; 699026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[1].texture[0] = u2; 7008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[1].texture[1] = v1; 701026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[2].texture[0] = u1; 7028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[2].texture[1] = v2; 703026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mDrawTextureVertices[3].texture[0] = u2; 7048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy mDrawTextureVertices[3].texture[1] = v2; 7058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 7068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 7078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 7088ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 7098ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 7108ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 7118ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 7128ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 7138ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 7148ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 7158ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 7168ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 7178ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 7188ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 7198ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 7208ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 7218ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 7228ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 7238ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 7248ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 7258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 726026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 727026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 7289d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 729e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 730