211 lines
7.3 KiB
C++
211 lines
7.3 KiB
C++
/*
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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_SF_SURFACE_COMPOSER_CLIENT_H
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#define ANDROID_SF_SURFACE_COMPOSER_CLIENT_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/IBinder.h>
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#include <utils/RefBase.h>
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#include <utils/Singleton.h>
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#include <utils/SortedVector.h>
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#include <utils/threads.h>
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#include <ui/PixelFormat.h>
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#include <ui/Region.h>
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#include <surfaceflinger/Surface.h>
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namespace android {
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// ---------------------------------------------------------------------------
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class Region;
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class SharedClient;
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class ISurfaceComposer;
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class DisplayInfo;
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class surface_flinger_cblk_t;
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// ---------------------------------------------------------------------------
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class ComposerService : public Singleton<ComposerService>
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{
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// these are constants
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sp<ISurfaceComposer> mComposerService;
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sp<IMemoryHeap> mServerCblkMemory;
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surface_flinger_cblk_t volatile* mServerCblk;
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ComposerService();
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friend class Singleton<ComposerService>;
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public:
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static sp<ISurfaceComposer> getComposerService();
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static surface_flinger_cblk_t const volatile * getControlBlock();
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};
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// ---------------------------------------------------------------------------
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class SurfaceComposerClient : public RefBase
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{
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public:
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SurfaceComposerClient();
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virtual ~SurfaceComposerClient();
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// Always make sure we could initialize
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status_t initCheck() const;
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// Return the connection of this client
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sp<IBinder> connection() const;
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// Forcibly remove connection before all references have gone away.
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void dispose();
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// ------------------------------------------------------------------------
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// surface creation / destruction
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//! Create a surface
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sp<SurfaceControl> createSurface(
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int pid, // pid of the process the surface is for
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const String8& name,// name of the surface
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DisplayID display, // Display to create this surface on
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uint32_t w, // width in pixel
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uint32_t h, // height in pixel
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PixelFormat format, // pixel-format desired
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uint32_t flags = 0 // usage flags
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);
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sp<SurfaceControl> createSurface(
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int pid, // pid of the process the surface is for
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DisplayID display, // Display to create this surface on
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uint32_t w, // width in pixel
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uint32_t h, // height in pixel
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PixelFormat format, // pixel-format desired
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uint32_t flags = 0 // usage flags
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);
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// ------------------------------------------------------------------------
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// Composer parameters
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// All composer parameters must be changed within a transaction
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// several surfaces can be updated in one transaction, all changes are
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// committed at once when the transaction is closed.
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// CloseTransaction() usually requires an IPC with the server.
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//! Open a composer transaction
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status_t openTransaction();
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//! commit the transaction
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status_t closeTransaction();
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//! Open a composer transaction on all active SurfaceComposerClients.
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static void openGlobalTransaction();
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//! Close a composer transaction on all active SurfaceComposerClients.
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static void closeGlobalTransaction();
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//! Freeze the specified display but not transactions.
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static status_t freezeDisplay(DisplayID dpy, uint32_t flags = 0);
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//! Resume updates on the specified display.
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static status_t unfreezeDisplay(DisplayID dpy, uint32_t flags = 0);
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//! Set the orientation of the given display
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static int setOrientation(DisplayID dpy, int orientation, uint32_t flags);
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// Query the number of displays
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static ssize_t getNumberOfDisplays();
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// Get information about a display
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static status_t getDisplayInfo(DisplayID dpy, DisplayInfo* info);
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static ssize_t getDisplayWidth(DisplayID dpy);
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static ssize_t getDisplayHeight(DisplayID dpy);
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static ssize_t getDisplayOrientation(DisplayID dpy);
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status_t linkToComposerDeath(const sp<IBinder::DeathRecipient>& recipient,
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void* cookie = NULL, uint32_t flags = 0);
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static void enableHDMIOutput(int enable);
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static void setActionSafeWidthRatio(float asWidthRatio);
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static void setActionSafeHeightRatio(float asHeightRatio);
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status_t hide(SurfaceID id);
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status_t show(SurfaceID id, int32_t layer = -1);
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status_t freeze(SurfaceID id);
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status_t unfreeze(SurfaceID id);
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status_t setFlags(SurfaceID id, uint32_t flags, uint32_t mask);
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status_t setTransparentRegionHint(SurfaceID id, const Region& transparent);
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status_t setLayer(SurfaceID id, int32_t layer);
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status_t setAlpha(SurfaceID id, float alpha=1.0f);
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status_t setFreezeTint(SurfaceID id, uint32_t tint);
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status_t setMatrix(SurfaceID id, float dsdx, float dtdx, float dsdy, float dtdy);
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status_t setPosition(SurfaceID id, int32_t x, int32_t y);
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status_t setSize(SurfaceID id, uint32_t w, uint32_t h);
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status_t setVisualParam(SurfaceID id, int8_t paramType, float paramValue);
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status_t destroySurface(SurfaceID sid);
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private:
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virtual void onFirstRef();
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inline layer_state_t* get_state_l(SurfaceID id);
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layer_state_t* lockLayerState(SurfaceID id);
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inline void unlockLayerState();
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mutable Mutex mLock;
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SortedVector<layer_state_t> mStates;
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int32_t mTransactionOpen;
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layer_state_t* mPrebuiltLayerState;
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// these don't need to be protected because they never change
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// after assignment
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status_t mStatus;
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sp<ISurfaceComposerClient> mClient;
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};
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// ---------------------------------------------------------------------------
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class ScreenshotClient
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{
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sp<IMemoryHeap> mHeap;
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uint32_t mWidth;
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uint32_t mHeight;
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PixelFormat mFormat;
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public:
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ScreenshotClient();
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// frees the previous screenshot and capture a new one
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status_t update();
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status_t update(uint32_t reqWidth, uint32_t reqHeight);
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// release memory occupied by the screenshot
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void release();
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// pixels are valid until this object is freed or
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// release() or update() is called
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void const* getPixels() const;
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uint32_t getWidth() const;
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uint32_t getHeight() const;
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PixelFormat getFormat() const;
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uint32_t getStride() const;
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// size of allocated memory in bytes
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size_t getSize() const;
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_SF_SURFACE_COMPOSER_CLIENT_H
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