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/*
* Copyright (C) 2006 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_GUI_ISURFACE_COMPOSER_H
#define ANDROID_GUI_ISURFACE_COMPOSER_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/RefBase.h>
#include <utils/Errors.h>
#include <binder/IInterface.h>
#include <ui/PixelFormat.h>
#include <gui/IGraphicBufferAlloc.h>
#include <gui/ISurfaceComposerClient.h>
namespace android {
// ----------------------------------------------------------------------------
class ComposerState;
class IDisplayEventConnection;
class IMemoryHeap;
class ISurfaceComposer : public IInterface
{
public:
DECLARE_META_INTERFACE(SurfaceComposer);
enum { // (keep in sync with Surface.java)
eHidden = 0x00000004,
eDestroyBackbuffer = 0x00000020,
eSecure = 0x00000080,
eNonPremultiplied = 0x00000100,
eOpaque = 0x00000400,
eProtectedByApp = 0x00000800,
eProtectedByDRM = 0x00001000,
eFXSurfaceNormal = 0x00000000,
eFXSurfaceBlur = 0x00010000,
eFXSurfaceDim = 0x00020000,
eFXSurfaceScreenshot= 0x00030000,
eFXSurfaceMask = 0x000F0000,
};
enum {
ePositionChanged = 0x00000001,
eLayerChanged = 0x00000002,
eSizeChanged = 0x00000004,
eAlphaChanged = 0x00000008,
eMatrixChanged = 0x00000010,
eTransparentRegionChanged = 0x00000020,
eVisibilityChanged = 0x00000040,
eFreezeTintChanged = 0x00000080,
eCropChanged = 0x00000100,
};
enum {
eLayerHidden = 0x01,
eLayerFrozen = 0x02,
eLayerDither = 0x04,
eLayerFilter = 0x08,
eLayerBlurFreeze = 0x10
};
enum {
eOrientationDefault = 0,
eOrientation90 = 1,
eOrientation180 = 2,
eOrientation270 = 3,
eOrientationUnchanged = 4,
eOrientationSwapMask = 0x01
};
enum {
eSynchronous = 0x01,
};
enum {
eElectronBeamAnimationOn = 0x01,
eElectronBeamAnimationOff = 0x10
};
enum {
eDisplayIdMain = 0
};
/* create connection with surface flinger, requires
* ACCESS_SURFACE_FLINGER permission
*/
virtual sp<ISurfaceComposerClient> createConnection() = 0;
/* create a graphic buffer allocator
*/
virtual sp<IGraphicBufferAlloc> createGraphicBufferAlloc() = 0;
/* retrieve the control block */
virtual sp<IMemoryHeap> getCblk() const = 0;
/* open/close transactions. requires ACCESS_SURFACE_FLINGER permission */
virtual void setTransactionState(const Vector<ComposerState>& state,
int orientation, uint32_t flags) = 0;
/* signal that we're done booting.
* Requires ACCESS_SURFACE_FLINGER permission
*/
virtual void bootFinished() = 0;
/* Capture the specified screen. requires READ_FRAME_BUFFER permission
* This function will fail if there is a secure window on screen.
*/
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) = 0;
/* triggers screen off animation */
virtual status_t turnElectronBeamOff(int32_t mode) = 0;
/* triggers screen on animation */
virtual status_t turnElectronBeamOn(int32_t mode) = 0;
/* verify that an ISurfaceTexture was created by SurfaceFlinger.
*/
virtual bool authenticateSurfaceTexture(
const sp<ISurfaceTexture>& surface) const = 0;
/* return an IDisplayEventConnection */
virtual sp<IDisplayEventConnection> createDisplayEventConnection() = 0;
};
// ----------------------------------------------------------------------------
class BnSurfaceComposer : public BnInterface<ISurfaceComposer>
{
public:
enum {
// Note: BOOT_FINISHED must remain this value, it is called from
// Java by ActivityManagerService.
BOOT_FINISHED = IBinder::FIRST_CALL_TRANSACTION,
CREATE_CONNECTION,
CREATE_GRAPHIC_BUFFER_ALLOC,
GET_CBLK,
SET_TRANSACTION_STATE,
SET_ORIENTATION,
CAPTURE_SCREEN,
TURN_ELECTRON_BEAM_OFF,
TURN_ELECTRON_BEAM_ON,
AUTHENTICATE_SURFACE,
CREATE_DISPLAY_EVENT_CONNECTION,
};
virtual status_t onTransact( uint32_t code,
const Parcel& data,
Parcel* reply,
uint32_t flags = 0);
};
// ----------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_GUI_ISURFACE_COMPOSER_H
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