117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef EGLMANAGER_H
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#define EGLMANAGER_H
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <SkImageInfo.h>
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#include <SkRect.h>
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#include <cutils/compiler.h>
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#include <utils/StrongPointer.h>
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#include "IRenderPipeline.h"
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#include "utils/Result.h"
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namespace android {
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namespace uirenderer {
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namespace renderthread {
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class Frame;
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class RenderThread;
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// This class contains the shared global EGL objects, such as EGLDisplay
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// and EGLConfig, which are re-used by CanvasContext
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class EglManager {
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public:
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explicit EglManager();
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~EglManager();
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static const char* eglErrorString();
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void initialize();
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bool hasEglContext();
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Result<EGLSurface, EGLint> createSurface(EGLNativeWindowType window, ColorMode colorMode,
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sk_sp<SkColorSpace> colorSpace);
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void destroySurface(EGLSurface surface);
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void destroy();
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bool isCurrent(EGLSurface surface) { return mCurrentSurface == surface; }
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// Returns true if the current surface changed, false if it was already current
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bool makeCurrent(EGLSurface surface, EGLint* errOut = nullptr, bool force = false);
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Frame beginFrame(EGLSurface surface);
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void damageFrame(const Frame& frame, const SkRect& dirty);
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// If this returns true it is mandatory that swapBuffers is called
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// if damageFrame is called without subsequent calls to damageFrame().
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// See EGL_KHR_partial_update for more information
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bool damageRequiresSwap();
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bool swapBuffers(const Frame& frame, const SkRect& screenDirty);
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// Returns true iff the surface is now preserving buffers.
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bool setPreserveBuffer(EGLSurface surface, bool preserve);
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void fence();
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EGLDisplay eglDisplay() const { return mEglDisplay; }
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// Inserts a wait on fence command into the OpenGL ES command stream. If EGL extension
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// support is missing, block the CPU on the fence.
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status_t fenceWait(int fence);
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// Creates a fence that is signaled, when all the pending GL commands are flushed.
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// Depending on installed extensions, the result is either Android native fence or EGL fence.
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status_t createReleaseFence(bool useFenceSync, EGLSyncKHR* eglFence, int* nativeFence);
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private:
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enum class SwapBehavior {
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Discard,
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Preserved,
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BufferAge,
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};
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static EGLConfig load8BitsConfig(EGLDisplay display, SwapBehavior swapBehavior);
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static EGLConfig loadFP16Config(EGLDisplay display, SwapBehavior swapBehavior);
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static EGLConfig load1010102Config(EGLDisplay display, SwapBehavior swapBehavior);
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static EGLConfig loadA8Config(EGLDisplay display, SwapBehavior swapBehavior);
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void initExtensions();
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void createPBufferSurface();
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void loadConfigs();
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void createContext();
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EGLint queryBufferAge(EGLSurface surface);
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EGLDisplay mEglDisplay;
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EGLConfig mEglConfig;
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EGLConfig mEglConfigF16;
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EGLConfig mEglConfig1010102;
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EGLConfig mEglConfigA8;
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EGLContext mEglContext;
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EGLSurface mPBufferSurface;
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EGLSurface mCurrentSurface;
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bool mHasWideColorGamutSupport;
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SwapBehavior mSwapBehavior = SwapBehavior::Discard;
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};
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} /* namespace renderthread */
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} /* namespace uirenderer */
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} /* namespace android */
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#endif /* EGLMANAGER_H */
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