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replicant-frameworks_native/services/surfaceflinger/SurfaceFlinger.h
Mathias Agopian 4fec873a98 one more step towards multiple display support 
- remove dependency on cached state in validateVisibility
- get rid of mVertices and mTransformedBounds
- get rid of validateVisibility
- get rid of unlockPageFlip
- handleTransaction now returns a dirty region
- computevisibileregion now uses window-manager space
2012-07-10 14:29:27 -07:00

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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_SURFACE_FLINGER_H
#define ANDROID_SURFACE_FLINGER_H
#include <stdint.h>
#include <sys/types.h>
#include <cutils/compiler.h>
#include <utils/Atomic.h>
#include <utils/Errors.h>
#include <utils/KeyedVector.h>
#include <utils/RefBase.h>
#include <utils/SortedVector.h>
#include <utils/threads.h>
#include <binder/BinderService.h>
#include <binder/IMemory.h>
#include <ui/PixelFormat.h>
#include <gui/IGraphicBufferAlloc.h>
#include <gui/ISurfaceComposer.h>
#include <gui/ISurfaceComposerClient.h>
#include "Barrier.h"
#include "Layer.h"
#include "MessageQueue.h"
namespace android {
// ---------------------------------------------------------------------------
class Client;
class DisplayHardware;
class DisplayEventConnection;
class EventThread;
class Layer;
class LayerDim;
class LayerScreenshot;
struct surface_flinger_cblk_t;
// ---------------------------------------------------------------------------
class GraphicBufferAlloc : public BnGraphicBufferAlloc
{
public:
GraphicBufferAlloc();
virtual ~GraphicBufferAlloc();
virtual sp<GraphicBuffer> createGraphicBuffer(uint32_t w, uint32_t h,
PixelFormat format, uint32_t usage, status_t* error);
};
// ---------------------------------------------------------------------------
enum {
eTransactionNeeded = 0x01,
eTraversalNeeded = 0x02
};
class SurfaceFlinger :
public BinderService<SurfaceFlinger>,
public BnSurfaceComposer,
public IBinder::DeathRecipient,
protected Thread
{
public:
static char const* getServiceName() { return "SurfaceFlinger"; }
SurfaceFlinger();
virtual ~SurfaceFlinger();
void init();
virtual status_t onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);
virtual status_t dump(int fd, const Vector<String16>& args);
// ISurfaceComposer interface
virtual sp<ISurfaceComposerClient> createConnection();
virtual sp<IGraphicBufferAlloc> createGraphicBufferAlloc();
virtual sp<IMemoryHeap> getCblk() const;
virtual void bootFinished();
virtual void setTransactionState(const Vector<ComposerState>& state,
int orientation, uint32_t flags);
virtual bool authenticateSurfaceTexture(const sp<ISurfaceTexture>& surface) const;
virtual sp<IDisplayEventConnection> createDisplayEventConnection();
virtual status_t captureScreen(DisplayID dpy,
sp<IMemoryHeap>* heap,
uint32_t* width, uint32_t* height,
PixelFormat* format, uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ);
virtual status_t turnElectronBeamOff(int32_t mode);
virtual status_t turnElectronBeamOn(int32_t mode);
// called when screen needs to turn off
virtual void blank();
// called when screen is turning back on
virtual void unblank();
virtual void connectDisplay(const sp<ISurfaceTexture> display);
// called on the main thread in response to screenReleased()
void onScreenReleased();
// called on the main thread in response to screenAcquired()
void onScreenAcquired();
status_t renderScreenToTexture(DisplayID dpy,
GLuint* textureName, GLfloat* uOut, GLfloat* vOut);
status_t renderScreenToTextureLocked(DisplayID dpy,
GLuint* textureName, GLfloat* uOut, GLfloat* vOut);
void onMessageReceived(int32_t what);
void handleMessageTransaction();
void handleMessageInvalidate();
void handleMessageRefresh();
status_t postMessageAsync(const sp<MessageBase>& msg,
nsecs_t reltime=0, uint32_t flags = 0);
status_t postMessageSync(const sp<MessageBase>& msg,
nsecs_t reltime=0, uint32_t flags = 0);
status_t removeLayer(const sp<LayerBase>& layer);
status_t addLayer(const sp<LayerBase>& layer);
status_t invalidateLayerVisibility(const sp<LayerBase>& layer);
void invalidateHwcGeometry();
sp<Layer> getLayer(const sp<ISurface>& sur) const;
GLuint getProtectedTexName() const { return mProtectedTexName; }
class MessageDestroyGLTexture : public MessageBase {
GLuint texture;
public:
MessageDestroyGLTexture(GLuint texture) : texture(texture) { }
virtual bool handler() {
glDeleteTextures(1, &texture);
return true;
}
};
private:
// DeathRecipient interface
virtual void binderDied(const wp<IBinder>& who);
private:
friend class Client;
friend class DisplayEventConnection;
friend class LayerBase;
friend class LayerBaseClient;
friend class Layer;
sp<ISurface> createSurface(
ISurfaceComposerClient::surface_data_t* params,
const String8& name,
const sp<Client>& client,
DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
uint32_t flags);
sp<Layer> createNormalSurface(
const sp<Client>& client, DisplayID display,
uint32_t w, uint32_t h, uint32_t flags,
PixelFormat& format);
sp<LayerDim> createDimSurface(
const sp<Client>& client, DisplayID display,
uint32_t w, uint32_t h, uint32_t flags);
sp<LayerScreenshot> createScreenshotSurface(
const sp<Client>& client, DisplayID display,
uint32_t w, uint32_t h, uint32_t flags);
status_t removeSurface(const sp<Client>& client, SurfaceID sid);
status_t destroySurface(const wp<LayerBaseClient>& layer);
uint32_t setClientStateLocked(const sp<Client>& client, const layer_state_t& s);
class LayerVector : public SortedVector< sp<LayerBase> > {
public:
LayerVector() { }
LayerVector(const LayerVector& rhs) : SortedVector< sp<LayerBase> >(rhs) { }
virtual int do_compare(const void* lhs, const void* rhs) const {
const sp<LayerBase>& l(*reinterpret_cast<const sp<LayerBase>*>(lhs));
const sp<LayerBase>& r(*reinterpret_cast<const sp<LayerBase>*>(rhs));
// sort layers by Z order
uint32_t lz = l->currentState().z;
uint32_t rz = r->currentState().z;
// then by sequence, so we get a stable ordering
return (lz != rz) ? (lz - rz) : (l->sequence - r->sequence);
}
};
struct State {
State()
: orientation(ISurfaceComposer::eOrientationDefault),
orientationFlags(0) {
}
LayerVector layersSortedByZ;
uint8_t orientation;
uint8_t orientationFlags;
};
virtual bool threadLoop();
virtual status_t readyToRun();
virtual void onFirstRef();
public: // hack to work around gcc 4.0.3 bug
const DisplayHardware& getDisplayHardware(DisplayID dpy) const {
return *mDisplayHardwares[dpy];
}
const DisplayHardware& getDefaultDisplayHardware() const {
return getDisplayHardware(0);
}
void signalTransaction();
void signalLayerUpdate();
void signalRefresh();
void repaintEverything();
private:
void waitForEvent();
Region handleTransaction(uint32_t transactionFlags);
Region handleTransactionLocked(uint32_t transactionFlags);
void computeVisibleRegions(
const LayerVector& currentLayers,
Region& dirtyRegion,
Region& wormholeRegion);
/* handlePageFilp: this is were we latch a new buffer
* if available and compute the dirty region.
* The return value is the dirty region expressed in the
* window manager's coordinate space (or the layer's state
* space, which is the same thing), in particular the dirty
* region is independent from a specific display's orientation.
*/
Region handlePageFlip();
void handleRefresh();
void handleWorkList(const DisplayHardware& hw);
void handleRepaint(const DisplayHardware& hw);
void postFramebuffer();
void setupHardwareComposer(const DisplayHardware& hw);
void composeSurfaces(const DisplayHardware& hw, const Region& dirty);
void setInvalidateRegion(const Region& reg);
Region getAndClearInvalidateRegion();
ssize_t addClientLayer(const sp<Client>& client,
const sp<LayerBaseClient>& lbc);
status_t addLayer_l(const sp<LayerBase>& layer);
status_t removeLayer_l(const sp<LayerBase>& layer);
status_t purgatorizeLayer_l(const sp<LayerBase>& layer);
uint32_t getTransactionFlags(uint32_t flags);
uint32_t peekTransactionFlags(uint32_t flags);
uint32_t setTransactionFlags(uint32_t flags);
void commitTransaction();
status_t captureScreenImplLocked(DisplayID dpy,
sp<IMemoryHeap>* heap,
uint32_t* width, uint32_t* height, PixelFormat* format,
uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ);
status_t turnElectronBeamOffImplLocked(int32_t mode);
status_t turnElectronBeamOnImplLocked(int32_t mode);
status_t electronBeamOffAnimationImplLocked();
status_t electronBeamOnAnimationImplLocked();
void debugFlashRegions(const DisplayHardware& hw);
void drawWormhole() const;
void startBootAnim();
void listLayersLocked(const Vector<String16>& args, size_t& index,
String8& result, char* buffer, size_t SIZE) const;
void dumpStatsLocked(const Vector<String16>& args, size_t& index,
String8& result, char* buffer, size_t SIZE) const;
void clearStatsLocked(const Vector<String16>& args, size_t& index,
String8& result, char* buffer, size_t SIZE) const;
void dumpAllLocked(String8& result, char* buffer, size_t SIZE) const;
mutable MessageQueue mEventQueue;
// access must be protected by mStateLock
mutable Mutex mStateLock;
State mCurrentState;
volatile int32_t mTransactionFlags;
Condition mTransactionCV;
SortedVector< sp<LayerBase> > mLayerPurgatory;
bool mTransationPending;
Vector< sp<LayerBase> > mLayersPendingRemoval;
// protected by mStateLock (but we could use another lock)
DisplayHardware* mDisplayHardwares[1];
bool mLayersRemoved;
DefaultKeyedVector< wp<IBinder>, wp<Layer> > mLayerMap;
// access must be protected by mInvalidateLock
mutable Mutex mInvalidateLock;
Region mInvalidateRegion;
// constant members (no synchronization needed for access)
sp<IMemoryHeap> mServerHeap;
surface_flinger_cblk_t* mServerCblk;
GLuint mWormholeTexName;
GLuint mProtectedTexName;
nsecs_t mBootTime;
sp<EventThread> mEventThread;
// Can only accessed from the main thread, these members
// don't need synchronization
State mDrawingState;
Region mDirtyRegion;
Region mDirtyRegionRemovedLayer;
Region mSwapRegion;
Region mWormholeRegion;
bool mVisibleRegionsDirty;
bool mHwWorkListDirty;
int32_t mElectronBeamAnimationMode;
Vector< sp<LayerBase> > mVisibleLayersSortedByZ;
// don't use a lock for these, we don't care
int mDebugRegion;
int mDebugDDMS;
int mDebugDisableHWC;
int mDebugDisableTransformHint;
volatile nsecs_t mDebugInSwapBuffers;
nsecs_t mLastSwapBufferTime;
volatile nsecs_t mDebugInTransaction;
nsecs_t mLastTransactionTime;
bool mBootFinished;
// these are thread safe
mutable Barrier mReadyToRunBarrier;
// protected by mDestroyedLayerLock;
mutable Mutex mDestroyedLayerLock;
Vector<LayerBase const *> mDestroyedLayers;
// only written in the main thread, only read in other threads
volatile int32_t mSecureFrameBuffer;
EGLSurface getExternalDisplaySurface() const;
sp<SurfaceTextureClient> mExternalDisplayNativeWindow;
EGLSurface mExternalDisplaySurface;
};
// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_SURFACE_FLINGER_H
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