138 lines
4.3 KiB
C
138 lines
4.3 KiB
C
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/*
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* Copyright (C) 2007 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 ANDROID_UI_SURFACE_H
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#define ANDROID_UI_SURFACE_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/RefBase.h>
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#include <utils/threads.h>
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#include <ui/ISurface.h>
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#include <ui/PixelFormat.h>
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#include <ui/Region.h>
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#include <ui/ISurfaceFlingerClient.h>
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namespace android {
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// ---------------------------------------------------------------------------
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class Rect;
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class SurfaceComposerClient;
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class Surface : public RefBase
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{
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public:
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struct SurfaceInfo {
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uint32_t w;
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uint32_t h;
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uint32_t bpr;
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PixelFormat format;
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void* bits;
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void* base;
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uint32_t reserved[2];
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};
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bool isValid() const { return this && mToken>=0 && mClient!=0; }
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SurfaceID ID() const { return mToken; }
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status_t lock(SurfaceInfo* info, bool blocking = true);
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status_t lock(SurfaceInfo* info, Region* dirty, bool blocking = true);
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status_t unlockAndPost();
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status_t unlock();
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void* heapBase(int i) const;
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uint32_t getFlags() const { return mFlags; }
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// setSwapRectangle() is mainly used by EGL
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void setSwapRectangle(const Rect& r);
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const Rect& swapRectangle() const;
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status_t nextBuffer(SurfaceInfo* info);
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sp<Surface> dup() const;
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static sp<Surface> readFromParcel(Parcel* parcel);
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static status_t writeToParcel(const sp<Surface>& surface, Parcel* parcel);
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static bool isSameSurface(const sp<Surface>& lhs, const sp<Surface>& rhs);
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status_t setLayer(int32_t layer);
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status_t setPosition(int32_t x, int32_t y);
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status_t setSize(uint32_t w, uint32_t h);
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status_t hide();
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status_t show(int32_t layer = -1);
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status_t freeze();
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status_t unfreeze();
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status_t setFlags(uint32_t flags, uint32_t mask);
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status_t setTransparentRegionHint(const Region& transparent);
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status_t setAlpha(float alpha=1.0f);
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status_t setMatrix(float dsdx, float dtdx, float dsdy, float dtdy);
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status_t setFreezeTint(uint32_t tint);
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uint32_t getIdentity() const { return mIdentity; }
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private:
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friend class SurfaceComposerClient;
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// camera and camcorder need access to the ISurface binder interface for preview
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friend class Camera;
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friend class MediaRecorder;
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// mediaplayer needs access to ISurface for display
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friend class MediaPlayer;
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friend class Test;
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const sp<ISurface>& getISurface() const { return mSurface; }
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// can't be copied
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Surface& operator = (Surface& rhs);
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Surface(const Surface& rhs);
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Surface(const sp<SurfaceComposerClient>& client,
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const sp<ISurface>& surface,
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const ISurfaceFlingerClient::surface_data_t& data,
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uint32_t w, uint32_t h, PixelFormat format, uint32_t flags,
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bool owner = true);
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Surface(Surface const* rhs);
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~Surface();
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Region dirtyRegion() const;
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void setDirtyRegion(const Region& region) const;
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// this locks protects calls to lockSurface() / unlockSurface()
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// and is called by SurfaceComposerClient.
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Mutex& getLock() const { return mSurfaceLock; }
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sp<SurfaceComposerClient> mClient;
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sp<ISurface> mSurface;
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sp<IMemoryHeap> mHeap[2];
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SurfaceID mToken;
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uint32_t mIdentity;
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PixelFormat mFormat;
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uint32_t mFlags;
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const bool mOwner;
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mutable void* mSurfaceHeapBase[2];
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mutable Region mDirtyRegion;
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mutable Rect mSwapRectangle;
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mutable uint8_t mBackbufferIndex;
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mutable Mutex mSurfaceLock;
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};
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}; // namespace android
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#endif // ANDROID_UI_SURFACE_H
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