EglManager.h revision cd55852fcd840f7f4c4d7a0a7253a2995c77afa2
13b20251a355c88193c439f928a84ae69483fb488John Reck/* 23b20251a355c88193c439f928a84ae69483fb488John Reck * Copyright (C) 2014 The Android Open Source Project 33b20251a355c88193c439f928a84ae69483fb488John Reck * 43b20251a355c88193c439f928a84ae69483fb488John Reck * Licensed under the Apache License, Version 2.0 (the "License"); 53b20251a355c88193c439f928a84ae69483fb488John Reck * you may not use this file except in compliance with the License. 63b20251a355c88193c439f928a84ae69483fb488John Reck * You may obtain a copy of the License at 73b20251a355c88193c439f928a84ae69483fb488John Reck * 83b20251a355c88193c439f928a84ae69483fb488John Reck * http://www.apache.org/licenses/LICENSE-2.0 93b20251a355c88193c439f928a84ae69483fb488John Reck * 103b20251a355c88193c439f928a84ae69483fb488John Reck * Unless required by applicable law or agreed to in writing, software 113b20251a355c88193c439f928a84ae69483fb488John Reck * distributed under the License is distributed on an "AS IS" BASIS, 123b20251a355c88193c439f928a84ae69483fb488John Reck * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133b20251a355c88193c439f928a84ae69483fb488John Reck * See the License for the specific language governing permissions and 143b20251a355c88193c439f928a84ae69483fb488John Reck * limitations under the License. 153b20251a355c88193c439f928a84ae69483fb488John Reck */ 163b20251a355c88193c439f928a84ae69483fb488John Reck#ifndef EGLMANAGER_H 173b20251a355c88193c439f928a84ae69483fb488John Reck#define EGLMANAGER_H 183b20251a355c88193c439f928a84ae69483fb488John Reck 193b20251a355c88193c439f928a84ae69483fb488John Reck#include <cutils/compiler.h> 203b20251a355c88193c439f928a84ae69483fb488John Reck#include <EGL/egl.h> 21d04794a9a3f9edc8b7ca336175d66eb81a8f55faJohn Reck#include <SkRect.h> 223b20251a355c88193c439f928a84ae69483fb488John Reck#include <ui/GraphicBuffer.h> 233b20251a355c88193c439f928a84ae69483fb488John Reck#include <utils/StrongPointer.h> 243b20251a355c88193c439f928a84ae69483fb488John Reck 253b20251a355c88193c439f928a84ae69483fb488John Recknamespace android { 263b20251a355c88193c439f928a84ae69483fb488John Recknamespace uirenderer { 273b20251a355c88193c439f928a84ae69483fb488John Recknamespace renderthread { 283b20251a355c88193c439f928a84ae69483fb488John Reck 29cd55852fcd840f7f4c4d7a0a7253a2995c77afa2Greg Danielclass Frame; 303b20251a355c88193c439f928a84ae69483fb488John Reckclass RenderThread; 313b20251a355c88193c439f928a84ae69483fb488John Reck 323b20251a355c88193c439f928a84ae69483fb488John Reck// This class contains the shared global EGL objects, such as EGLDisplay 333b20251a355c88193c439f928a84ae69483fb488John Reck// and EGLConfig, which are re-used by CanvasContext 343b20251a355c88193c439f928a84ae69483fb488John Reckclass EglManager { 353b20251a355c88193c439f928a84ae69483fb488John Reckpublic: 36694d499662838123f474f41b31dea84ec5d563f0sergeyv static const char* eglErrorString(); 373b20251a355c88193c439f928a84ae69483fb488John Reck // Returns true on success, false on failure 383b20251a355c88193c439f928a84ae69483fb488John Reck void initialize(); 393b20251a355c88193c439f928a84ae69483fb488John Reck 403b20251a355c88193c439f928a84ae69483fb488John Reck bool hasEglContext(); 413b20251a355c88193c439f928a84ae69483fb488John Reck 423b20251a355c88193c439f928a84ae69483fb488John Reck EGLSurface createSurface(EGLNativeWindowType window); 433b20251a355c88193c439f928a84ae69483fb488John Reck void destroySurface(EGLSurface surface); 443b20251a355c88193c439f928a84ae69483fb488John Reck 453b20251a355c88193c439f928a84ae69483fb488John Reck void destroy(); 463b20251a355c88193c439f928a84ae69483fb488John Reck 473b20251a355c88193c439f928a84ae69483fb488John Reck bool isCurrent(EGLSurface surface) { return mCurrentSurface == surface; } 483b20251a355c88193c439f928a84ae69483fb488John Reck // Returns true if the current surface changed, false if it was already current 49f2dcc2aecb94e726096256c47b913ed0a57ae7e2John Reck bool makeCurrent(EGLSurface surface, EGLint* errOut = nullptr); 50149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck Frame beginFrame(EGLSurface surface); 51149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck void damageFrame(const Frame& frame, const SkRect& dirty); 52c96955d9bb997b51be5fa929b5a67349d0459c3aJohn Reck // If this returns true it is mandatory that swapBuffers is called 53c96955d9bb997b51be5fa929b5a67349d0459c3aJohn Reck // if damageFrame is called without subsequent calls to damageFrame(). 54c96955d9bb997b51be5fa929b5a67349d0459c3aJohn Reck // See EGL_KHR_partial_update for more information 55c96955d9bb997b51be5fa929b5a67349d0459c3aJohn Reck bool damageRequiresSwap(); 56149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck bool swapBuffers(const Frame& frame, const SkRect& screenDirty); 573b20251a355c88193c439f928a84ae69483fb488John Reck 581125d1fa92ab9f3b8315bbfb72e038b62dfd454bJohn Reck // Returns true iff the surface is now preserving buffers. 591125d1fa92ab9f3b8315bbfb72e038b62dfd454bJohn Reck bool setPreserveBuffer(EGLSurface surface, bool preserve); 603b20251a355c88193c439f928a84ae69483fb488John Reck 615515637540bedd8fc9a1a6e46a4b512dd45520a5John Reck void fence(); 625515637540bedd8fc9a1a6e46a4b512dd45520a5John Reck 633b20251a355c88193c439f928a84ae69483fb488John Reckprivate: 643b20251a355c88193c439f928a84ae69483fb488John Reck friend class RenderThread; 6549796451cb9d1dae580618eb320ef3c5e6d90cd4Chih-Hung Hsieh explicit EglManager(RenderThread& thread); 663b20251a355c88193c439f928a84ae69483fb488John Reck // EglContext is never destroyed, method is purposely not implemented 673b20251a355c88193c439f928a84ae69483fb488John Reck ~EglManager(); 683b20251a355c88193c439f928a84ae69483fb488John Reck 69149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck void initExtensions(); 70d7db4d767246b41d44995acb93d03d220b53c748John Reck void createPBufferSurface(); 71149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck void loadConfig(); 723b20251a355c88193c439f928a84ae69483fb488John Reck void createContext(); 73149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck EGLint queryBufferAge(EGLSurface surface); 7413d1b4ab10fbee5e81a2ba1ac59cfae1e51d3ef0Season Li 753b20251a355c88193c439f928a84ae69483fb488John Reck RenderThread& mRenderThread; 763b20251a355c88193c439f928a84ae69483fb488John Reck 773b20251a355c88193c439f928a84ae69483fb488John Reck EGLDisplay mEglDisplay; 783b20251a355c88193c439f928a84ae69483fb488John Reck EGLConfig mEglConfig; 793b20251a355c88193c439f928a84ae69483fb488John Reck EGLContext mEglContext; 803b20251a355c88193c439f928a84ae69483fb488John Reck EGLSurface mPBufferSurface; 813b20251a355c88193c439f928a84ae69483fb488John Reck 823b20251a355c88193c439f928a84ae69483fb488John Reck EGLSurface mCurrentSurface; 833b20251a355c88193c439f928a84ae69483fb488John Reck 84149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck enum class SwapBehavior { 85149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck Discard, 86149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck Preserved, 87149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck BufferAge, 88149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck }; 89149173d28c0843aba86b0810ce75b34be6a0d08fJohn Reck SwapBehavior mSwapBehavior = SwapBehavior::Discard; 903b20251a355c88193c439f928a84ae69483fb488John Reck}; 913b20251a355c88193c439f928a84ae69483fb488John Reck 923b20251a355c88193c439f928a84ae69483fb488John Reck} /* namespace renderthread */ 933b20251a355c88193c439f928a84ae69483fb488John Reck} /* namespace uirenderer */ 943b20251a355c88193c439f928a84ae69483fb488John Reck} /* namespace android */ 953b20251a355c88193c439f928a84ae69483fb488John Reck 963b20251a355c88193c439f928a84ae69483fb488John Reck#endif /* EGLMANAGER_H */ 97