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replicant-frameworks_native/include/surfaceflinger/Surface.h
Mathias Agopian 579b3f88d0 allow re-targetting of surfaces 
Surfaces can now be parcelized and sent to remote
processes. When a surface crosses a process
boundary, it looses its connection with the
current process and gets attached to the new one.

Change-Id: I39c7b055bcd3ea1162ef2718d3d4b866bf7c81c0
2010-06-08 20:10:02 -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_SF_SURFACE_H
#define ANDROID_SF_SURFACE_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/RefBase.h>
#include <utils/threads.h>
#include <ui/PixelFormat.h>
#include <ui/Region.h>
#include <ui/egl/android_natives.h>
#include <surfaceflinger/ISurface.h>
#include <surfaceflinger/ISurfaceComposerClient.h>
#define ANDROID_VIEW_SURFACE_JNI_ID "mNativeSurface"
namespace android {
// ---------------------------------------------------------------------------
class GraphicBuffer;
class GraphicBufferMapper;
class IOMX;
class Rect;
class Surface;
class SurfaceComposerClient;
class SharedClient;
class SharedBufferClient;
class SurfaceClient;
// ---------------------------------------------------------------------------
class SurfaceControl : public RefBase
{
public:
static bool isValid(const sp<SurfaceControl>& surface) {
return (surface != 0) && surface->isValid();
}
bool isValid() {
return mToken>=0 && mClient!=0;
}
static bool isSameSurface(
const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs);
uint32_t getFlags() const { return mFlags; }
uint32_t getIdentity() const { return mIdentity; }
// release surface data from java
void clear();
status_t setLayer(int32_t layer);
status_t setPosition(int32_t x, int32_t y);
status_t setSize(uint32_t w, uint32_t h);
status_t hide();
status_t show(int32_t layer = -1);
status_t freeze();
status_t unfreeze();
status_t setFlags(uint32_t flags, uint32_t mask);
status_t setTransparentRegionHint(const Region& transparent);
status_t setAlpha(float alpha=1.0f);
status_t setMatrix(float dsdx, float dtdx, float dsdy, float dtdy);
status_t setFreezeTint(uint32_t tint);
static status_t writeSurfaceToParcel(
const sp<SurfaceControl>& control, Parcel* parcel);
sp<Surface> getSurface() const;
private:
// can't be copied
SurfaceControl& operator = (SurfaceControl& rhs);
SurfaceControl(const SurfaceControl& rhs);
friend class SurfaceComposerClient;
// camera and camcorder need access to the ISurface binder interface for preview
friend class Camera;
friend class MediaRecorder;
// mediaplayer needs access to ISurface for display
friend class MediaPlayer;
// for testing
friend class Test;
const sp<ISurface>& getISurface() const { return mSurface; }
friend class Surface;
SurfaceControl(
const sp<SurfaceComposerClient>& client,
const sp<ISurface>& surface,
const ISurfaceComposerClient::surface_data_t& data,
uint32_t w, uint32_t h, PixelFormat format, uint32_t flags);
~SurfaceControl();
status_t validate() const;
void destroy();
sp<SurfaceComposerClient> mClient;
sp<ISurface> mSurface;
SurfaceID mToken;
uint32_t mIdentity;
uint32_t mWidth;
uint32_t mHeight;
PixelFormat mFormat;
uint32_t mFlags;
mutable Mutex mLock;
mutable sp<Surface> mSurfaceData;
};
// ---------------------------------------------------------------------------
class Surface
: public EGLNativeBase<android_native_window_t, Surface, RefBase>
{
public:
struct SurfaceInfo {
uint32_t w;
uint32_t h;
uint32_t s;
uint32_t usage;
PixelFormat format;
void* bits;
uint32_t reserved[2];
};
static status_t writeToParcel(
const sp<Surface>& control, Parcel* parcel);
static sp<Surface> readFromParcel(
const Parcel& data, const sp<Surface>& other);
static bool isValid(const sp<Surface>& surface) {
return (surface != 0) && surface->isValid();
}
bool isValid();
uint32_t getFlags() const { return mFlags; }
uint32_t getIdentity() const { return mIdentity; }
// the lock/unlock APIs must be used from the same thread
status_t lock(SurfaceInfo* info, bool blocking = true);
status_t lock(SurfaceInfo* info, Region* dirty, bool blocking = true);
status_t unlockAndPost();
// setSwapRectangle() is intended to be used by GL ES clients
void setSwapRectangle(const Rect& r);
private:
/*
* Android frameworks friends
* (eventually this should go away and be replaced by proper APIs)
*/
// camera and camcorder need access to the ISurface binder interface for preview
friend class Camera;
friend class MediaRecorder;
// MediaPlayer needs access to ISurface for display
friend class MediaPlayer;
friend class IOMX;
// this is just to be able to write some unit tests
friend class Test;
private:
friend class SurfaceComposerClient;
friend class SurfaceControl;
// can't be copied
Surface& operator = (Surface& rhs);
Surface(const Surface& rhs);
Surface(const sp<SurfaceControl>& control);
Surface(const Parcel& data, const sp<IBinder>& ref);
~Surface();
/*
* android_native_window_t hooks
*/
static int setSwapInterval(android_native_window_t* window, int interval);
static int dequeueBuffer(android_native_window_t* window, android_native_buffer_t** buffer);
static int lockBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
static int queueBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
static int query(android_native_window_t* window, int what, int* value);
static int perform(android_native_window_t* window, int operation, ...);
int dequeueBuffer(android_native_buffer_t** buffer);
int lockBuffer(android_native_buffer_t* buffer);
int queueBuffer(android_native_buffer_t* buffer);
int query(int what, int* value);
int perform(int operation, va_list args);
void dispatch_setUsage(va_list args);
int dispatch_connect(va_list args);
int dispatch_disconnect(va_list args);
int dispatch_crop(va_list args);
int dispatch_set_buffer_count(va_list args);
int dispatch_set_buffers_geometry(va_list args);
void setUsage(uint32_t reqUsage);
int connect(int api);
int disconnect(int api);
int crop(Rect const* rect);
int setBufferCount(int bufferCount);
int setBuffersGeometry(int w, int h, int format);
/*
* private stuff...
*/
void init();
status_t validate() const;
sp<ISurface> getISurface() const;
inline const GraphicBufferMapper& getBufferMapper() const { return mBufferMapper; }
inline GraphicBufferMapper& getBufferMapper() { return mBufferMapper; }
status_t getBufferLocked(int index,
uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
int getBufferIndex(const sp<GraphicBuffer>& buffer) const;
int getConnectedApi() const;
bool needNewBuffer(int bufIdx,
uint32_t *pWidth, uint32_t *pHeight,
uint32_t *pFormat, uint32_t *pUsage) const;
class BufferInfo {
uint32_t mWidth;
uint32_t mHeight;
uint32_t mFormat;
uint32_t mUsage;
mutable uint32_t mDirty;
enum {
GEOMETRY = 0x01
};
public:
BufferInfo();
void set(uint32_t w, uint32_t h, uint32_t format);
void set(uint32_t usage);
void get(uint32_t *pWidth, uint32_t *pHeight,
uint32_t *pFormat, uint32_t *pUsage) const;
bool validateBuffer(const sp<GraphicBuffer>& buffer) const;
};
// constants
GraphicBufferMapper& mBufferMapper;
SurfaceClient& mClient;
SharedBufferClient* mSharedBufferClient;
status_t mInitCheck;
sp<ISurface> mSurface;
uint32_t mIdentity;
PixelFormat mFormat;
uint32_t mFlags;
// protected by mSurfaceLock
Rect mSwapRectangle;
int mConnected;
Rect mNextBufferCrop;
BufferInfo mBufferInfo;
// protected by mSurfaceLock. These are also used from lock/unlock
// but in that case, they must be called form the same thread.
mutable Region mDirtyRegion;
// must be used from the lock/unlock thread
sp<GraphicBuffer> mLockedBuffer;
sp<GraphicBuffer> mPostedBuffer;
mutable Region mOldDirtyRegion;
bool mReserved;
// only used from dequeueBuffer()
Vector< sp<GraphicBuffer> > mBuffers;
// query() must be called from dequeueBuffer() thread
uint32_t mWidth;
uint32_t mHeight;
// Inherently thread-safe
mutable Mutex mSurfaceLock;
mutable Mutex mApiLock;
};
}; // namespace android
#endif // ANDROID_SF_SURFACE_H
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