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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_ISURFACE_COMPOSER_H
#define ANDROID_ISURFACE_COMPOSER_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/RefBase.h>
#include <utils/Errors.h>
#include <utils/IInterface.h>
#include <ui/PixelFormat.h>
#include <ui/ISurfaceFlingerClient.h>
namespace android {
// ----------------------------------------------------------------------------
class DisplayInfo;
class IGPUCallback;
class ISurfaceComposer : public IInterface
{
public:
DECLARE_META_INTERFACE(SurfaceComposer);
enum { // (keep in sync with Surface.java)
eHidden = 0x00000004,
eGPU = 0x00000008,
eHardware = 0x00000010,
eDestroyBackbuffer = 0x00000020,
eSecure = 0x00000080,
eNonPremultiplied = 0x00000100,
ePushBuffers = 0x00000200,
eFXSurfaceNormal = 0x00000000,
eFXSurfaceBlur = 0x00010000,
eFXSurfaceDim = 0x00020000,
eFXSurfaceMask = 0x000F0000,
};
enum {
ePositionChanged = 0x00000001,
eLayerChanged = 0x00000002,
eSizeChanged = 0x00000004,
eAlphaChanged = 0x00000008,
eMatrixChanged = 0x00000010,
eTransparentRegionChanged = 0x00000020,
eVisibilityChanged = 0x00000040,
eFreezeTintChanged = 0x00000080,
eDestroyed = 0x00000100
};
enum {
eLayerHidden = 0x01,
eLayerFrozen = 0x02,
eLayerDither = 0x04,
eLayerFilter = 0x08,
eLayerBlurFreeze = 0x10
};
enum {
eOrientationDefault = 0,
eOrientation90 = 1,
eOrientation180 = 2,
eOrientation270 = 3,
eOrientationSwapMask = 0x01
};
/* create connection with surface flinger, requires
* ACCESS_SURFACE_FLINGER permission
*/
virtual sp<ISurfaceFlingerClient> createConnection() = 0;
/* retrieve the control block */
virtual sp<IMemory> getCblk() const = 0;
/* open/close transactions. recquires ACCESS_SURFACE_FLINGER permission */
virtual void openGlobalTransaction() = 0;
virtual void closeGlobalTransaction() = 0;
/* [un]freeze display. recquires ACCESS_SURFACE_FLINGER permission */
virtual status_t freezeDisplay(DisplayID dpy, uint32_t flags) = 0;
virtual status_t unfreezeDisplay(DisplayID dpy, uint32_t flags) = 0;
/* Set display orientation. recquires ACCESS_SURFACE_FLINGER permission */
virtual int setOrientation(DisplayID dpy, int orientation) = 0;
/* signal that we're done booting.
* recquires ACCESS_SURFACE_FLINGER permission
*/
virtual void bootFinished() = 0;
/* get access to the GPU. Access is relinquished when releasing regs */
struct gpu_info_t {
struct gpu_region_t {
sp<IMemory> region;
size_t reserved;
};
sp<IMemory> regs;
size_t count;
gpu_region_t regions[2];
};
virtual status_t requestGPU(
const sp<IGPUCallback>& callback,
gpu_info_t* gpu) = 0;
/* take the gpu back from any apps using it. They'll get a
* EGL_CONTEXT_LOST error */
virtual status_t revokeGPU() = 0;
/* Signal surfaceflinger that there might be some work to do
* This is an ASYNCHRONOUS call.
*/
virtual void signal() const = 0;
};
class IGPUCallback : public IInterface
{
public:
DECLARE_META_INTERFACE(GPUCallback);
virtual void gpuLost() = 0; //one-way
};
// ----------------------------------------------------------------------------
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,
GET_CBLK,
OPEN_GLOBAL_TRANSACTION,
CLOSE_GLOBAL_TRANSACTION,
SET_ORIENTATION,
FREEZE_DISPLAY,
UNFREEZE_DISPLAY,
REQUEST_GPU,
REVOKE_GPU,
SIGNAL
};
virtual status_t onTransact( uint32_t code,
const Parcel& data,
Parcel* reply,
uint32_t flags = 0);
};
class BnGPUCallback : public BnInterface<IGPUCallback>
{
public:
virtual status_t onTransact( uint32_t code,
const Parcel& data,
Parcel* reply,
uint32_t flags = 0);
};
// ----------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_ISURFACE_COMPOSER_H
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