149173d28c
Bug: 21753739 Includes a revert of 13d1b4ab10fbee5e81a2ba1ac59cfae1e51d3ef0 as that only supported EGL_EXT_buffer_age Change-Id: Ia86a47d19e3355c067934d7764c330b640c6958d
122 lines
3.3 KiB
C++
122 lines
3.3 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 <cutils/compiler.h>
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#include <EGL/egl.h>
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#include <SkRect.h>
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#include <ui/GraphicBuffer.h>
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#include <utils/StrongPointer.h>
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namespace android {
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namespace uirenderer {
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namespace renderthread {
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class RenderThread;
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class EglManager;
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class Frame {
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public:
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EGLint width() const { return mWidth; }
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EGLint height() const { return mHeight; }
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// See: https://www.khronos.org/registry/egl/extensions/EXT/EGL_EXT_buffer_age.txt
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// for what this means
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EGLint bufferAge() const { return mBufferAge; }
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private:
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friend class EglManager;
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EGLSurface mSurface;
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EGLint mWidth;
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EGLint mHeight;
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EGLint mBufferAge;
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// Maps from 0,0 in top-left to 0,0 in bottom-left
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// If out is not an EGLint[4] you're going to have a bad time
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void map(const SkRect& in, EGLint* out) const;
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};
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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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// Returns true on success, false on failure
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void initialize();
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bool hasEglContext();
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EGLSurface createSurface(EGLNativeWindowType window);
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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);
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Frame beginFrame(EGLSurface surface);
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void damageFrame(const Frame& frame, const SkRect& dirty);
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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 setTextureAtlas(const sp<GraphicBuffer>& buffer, int64_t* map, size_t mapSize);
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void fence();
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private:
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friend class RenderThread;
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EglManager(RenderThread& thread);
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// EglContext is never destroyed, method is purposely not implemented
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~EglManager();
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void initExtensions();
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void createPBufferSurface();
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void loadConfig();
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void createContext();
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void initAtlas();
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EGLint queryBufferAge(EGLSurface surface);
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RenderThread& mRenderThread;
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EGLDisplay mEglDisplay;
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EGLConfig mEglConfig;
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EGLContext mEglContext;
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EGLSurface mPBufferSurface;
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EGLSurface mCurrentSurface;
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sp<GraphicBuffer> mAtlasBuffer;
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int64_t* mAtlasMap;
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size_t mAtlasMapSize;
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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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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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