425 lines
14 KiB
C++
425 lines
14 KiB
C++
/*
|
|
**
|
|
** Copyright 2008, 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.
|
|
*/
|
|
|
|
//#define LOG_NDEBUG 0
|
|
#define LOG_TAG "ICamera"
|
|
#include <utils/Log.h>
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
#include <binder/Parcel.h>
|
|
#include <camera/ICamera.h>
|
|
#include <gui/IGraphicBufferProducer.h>
|
|
#include <gui/Surface.h>
|
|
|
|
namespace android {
|
|
|
|
enum {
|
|
DISCONNECT = IBinder::FIRST_CALL_TRANSACTION,
|
|
SET_PREVIEW_TARGET,
|
|
SET_PREVIEW_CALLBACK_FLAG,
|
|
SET_PREVIEW_CALLBACK_TARGET,
|
|
START_PREVIEW,
|
|
STOP_PREVIEW,
|
|
AUTO_FOCUS,
|
|
CANCEL_AUTO_FOCUS,
|
|
TAKE_PICTURE,
|
|
SET_PARAMETERS,
|
|
GET_PARAMETERS,
|
|
SEND_COMMAND,
|
|
CONNECT,
|
|
LOCK,
|
|
UNLOCK,
|
|
PREVIEW_ENABLED,
|
|
START_RECORDING,
|
|
STOP_RECORDING,
|
|
RECORDING_ENABLED,
|
|
RELEASE_RECORDING_FRAME,
|
|
STORE_META_DATA_IN_BUFFERS,
|
|
};
|
|
|
|
class BpCamera: public BpInterface<ICamera>
|
|
{
|
|
public:
|
|
BpCamera(const sp<IBinder>& impl)
|
|
: BpInterface<ICamera>(impl)
|
|
{
|
|
}
|
|
|
|
// disconnect from camera service
|
|
void disconnect()
|
|
{
|
|
ALOGV("disconnect");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(DISCONNECT, data, &reply);
|
|
reply.readExceptionCode();
|
|
}
|
|
|
|
// pass the buffered IGraphicBufferProducer to the camera service
|
|
status_t setPreviewTarget(const sp<IGraphicBufferProducer>& bufferProducer)
|
|
{
|
|
ALOGV("setPreviewTarget");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
sp<IBinder> b(IInterface::asBinder(bufferProducer));
|
|
data.writeStrongBinder(b);
|
|
remote()->transact(SET_PREVIEW_TARGET, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// set the preview callback flag to affect how the received frames from
|
|
// preview are handled. See Camera.h for details.
|
|
void setPreviewCallbackFlag(int flag)
|
|
{
|
|
ALOGV("setPreviewCallbackFlag(%d)", flag);
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
data.writeInt32(flag);
|
|
remote()->transact(SET_PREVIEW_CALLBACK_FLAG, data, &reply);
|
|
}
|
|
|
|
status_t setPreviewCallbackTarget(
|
|
const sp<IGraphicBufferProducer>& callbackProducer)
|
|
{
|
|
ALOGV("setPreviewCallbackTarget");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
sp<IBinder> b(IInterface::asBinder(callbackProducer));
|
|
data.writeStrongBinder(b);
|
|
remote()->transact(SET_PREVIEW_CALLBACK_TARGET, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// start preview mode, must call setPreviewTarget first
|
|
status_t startPreview()
|
|
{
|
|
ALOGV("startPreview");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(START_PREVIEW, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// start recording mode, must call setPreviewTarget first
|
|
status_t startRecording()
|
|
{
|
|
ALOGV("startRecording");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(START_RECORDING, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// stop preview mode
|
|
void stopPreview()
|
|
{
|
|
ALOGV("stopPreview");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(STOP_PREVIEW, data, &reply);
|
|
}
|
|
|
|
// stop recording mode
|
|
void stopRecording()
|
|
{
|
|
ALOGV("stopRecording");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(STOP_RECORDING, data, &reply);
|
|
}
|
|
|
|
void releaseRecordingFrame(const sp<IMemory>& mem)
|
|
{
|
|
ALOGV("releaseRecordingFrame");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
data.writeStrongBinder(IInterface::asBinder(mem));
|
|
remote()->transact(RELEASE_RECORDING_FRAME, data, &reply);
|
|
}
|
|
|
|
status_t storeMetaDataInBuffers(bool enabled)
|
|
{
|
|
ALOGV("storeMetaDataInBuffers: %s", enabled? "true": "false");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
data.writeInt32(enabled);
|
|
remote()->transact(STORE_META_DATA_IN_BUFFERS, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// check preview state
|
|
bool previewEnabled()
|
|
{
|
|
ALOGV("previewEnabled");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(PREVIEW_ENABLED, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// check recording state
|
|
bool recordingEnabled()
|
|
{
|
|
ALOGV("recordingEnabled");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(RECORDING_ENABLED, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// auto focus
|
|
status_t autoFocus()
|
|
{
|
|
ALOGV("autoFocus");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(AUTO_FOCUS, data, &reply);
|
|
status_t ret = reply.readInt32();
|
|
return ret;
|
|
}
|
|
|
|
// cancel focus
|
|
status_t cancelAutoFocus()
|
|
{
|
|
ALOGV("cancelAutoFocus");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(CANCEL_AUTO_FOCUS, data, &reply);
|
|
status_t ret = reply.readInt32();
|
|
return ret;
|
|
}
|
|
|
|
// take a picture - returns an IMemory (ref-counted mmap)
|
|
status_t takePicture(int msgType)
|
|
{
|
|
ALOGV("takePicture: 0x%x", msgType);
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
data.writeInt32(msgType);
|
|
remote()->transact(TAKE_PICTURE, data, &reply);
|
|
status_t ret = reply.readInt32();
|
|
return ret;
|
|
}
|
|
|
|
// set preview/capture parameters - key/value pairs
|
|
status_t setParameters(const String8& params)
|
|
{
|
|
ALOGV("setParameters");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
data.writeString8(params);
|
|
remote()->transact(SET_PARAMETERS, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// get preview/capture parameters - key/value pairs
|
|
String8 getParameters() const
|
|
{
|
|
ALOGV("getParameters");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(GET_PARAMETERS, data, &reply);
|
|
return reply.readString8();
|
|
}
|
|
virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2)
|
|
{
|
|
ALOGV("sendCommand");
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
data.writeInt32(cmd);
|
|
data.writeInt32(arg1);
|
|
data.writeInt32(arg2);
|
|
remote()->transact(SEND_COMMAND, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
virtual status_t connect(const sp<ICameraClient>& cameraClient)
|
|
{
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
data.writeStrongBinder(IInterface::asBinder(cameraClient));
|
|
remote()->transact(CONNECT, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
virtual status_t lock()
|
|
{
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(LOCK, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
virtual status_t unlock()
|
|
{
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
|
|
remote()->transact(UNLOCK, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
};
|
|
|
|
IMPLEMENT_META_INTERFACE(Camera, "android.hardware.ICamera");
|
|
|
|
// ----------------------------------------------------------------------
|
|
|
|
status_t BnCamera::onTransact(
|
|
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
|
|
{
|
|
switch(code) {
|
|
case DISCONNECT: {
|
|
ALOGV("DISCONNECT");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
disconnect();
|
|
reply->writeNoException();
|
|
return NO_ERROR;
|
|
} break;
|
|
case SET_PREVIEW_TARGET: {
|
|
ALOGV("SET_PREVIEW_TARGET");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
sp<IGraphicBufferProducer> st =
|
|
interface_cast<IGraphicBufferProducer>(data.readStrongBinder());
|
|
reply->writeInt32(setPreviewTarget(st));
|
|
return NO_ERROR;
|
|
} break;
|
|
case SET_PREVIEW_CALLBACK_FLAG: {
|
|
ALOGV("SET_PREVIEW_CALLBACK_TYPE");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
int callback_flag = data.readInt32();
|
|
setPreviewCallbackFlag(callback_flag);
|
|
return NO_ERROR;
|
|
} break;
|
|
case SET_PREVIEW_CALLBACK_TARGET: {
|
|
ALOGV("SET_PREVIEW_CALLBACK_TARGET");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
sp<IGraphicBufferProducer> cp =
|
|
interface_cast<IGraphicBufferProducer>(data.readStrongBinder());
|
|
reply->writeInt32(setPreviewCallbackTarget(cp));
|
|
return NO_ERROR;
|
|
}
|
|
case START_PREVIEW: {
|
|
ALOGV("START_PREVIEW");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeInt32(startPreview());
|
|
return NO_ERROR;
|
|
} break;
|
|
case START_RECORDING: {
|
|
ALOGV("START_RECORDING");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeInt32(startRecording());
|
|
return NO_ERROR;
|
|
} break;
|
|
case STOP_PREVIEW: {
|
|
ALOGV("STOP_PREVIEW");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
stopPreview();
|
|
return NO_ERROR;
|
|
} break;
|
|
case STOP_RECORDING: {
|
|
ALOGV("STOP_RECORDING");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
stopRecording();
|
|
return NO_ERROR;
|
|
} break;
|
|
case RELEASE_RECORDING_FRAME: {
|
|
ALOGV("RELEASE_RECORDING_FRAME");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
sp<IMemory> mem = interface_cast<IMemory>(data.readStrongBinder());
|
|
releaseRecordingFrame(mem);
|
|
return NO_ERROR;
|
|
} break;
|
|
case STORE_META_DATA_IN_BUFFERS: {
|
|
ALOGV("STORE_META_DATA_IN_BUFFERS");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
bool enabled = data.readInt32();
|
|
reply->writeInt32(storeMetaDataInBuffers(enabled));
|
|
return NO_ERROR;
|
|
} break;
|
|
case PREVIEW_ENABLED: {
|
|
ALOGV("PREVIEW_ENABLED");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeInt32(previewEnabled());
|
|
return NO_ERROR;
|
|
} break;
|
|
case RECORDING_ENABLED: {
|
|
ALOGV("RECORDING_ENABLED");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeInt32(recordingEnabled());
|
|
return NO_ERROR;
|
|
} break;
|
|
case AUTO_FOCUS: {
|
|
ALOGV("AUTO_FOCUS");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeInt32(autoFocus());
|
|
return NO_ERROR;
|
|
} break;
|
|
case CANCEL_AUTO_FOCUS: {
|
|
ALOGV("CANCEL_AUTO_FOCUS");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeInt32(cancelAutoFocus());
|
|
return NO_ERROR;
|
|
} break;
|
|
case TAKE_PICTURE: {
|
|
ALOGV("TAKE_PICTURE");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
int msgType = data.readInt32();
|
|
reply->writeInt32(takePicture(msgType));
|
|
return NO_ERROR;
|
|
} break;
|
|
case SET_PARAMETERS: {
|
|
ALOGV("SET_PARAMETERS");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
String8 params(data.readString8());
|
|
reply->writeInt32(setParameters(params));
|
|
return NO_ERROR;
|
|
} break;
|
|
case GET_PARAMETERS: {
|
|
ALOGV("GET_PARAMETERS");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeString8(getParameters());
|
|
return NO_ERROR;
|
|
} break;
|
|
case SEND_COMMAND: {
|
|
ALOGV("SEND_COMMAND");
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
int command = data.readInt32();
|
|
int arg1 = data.readInt32();
|
|
int arg2 = data.readInt32();
|
|
reply->writeInt32(sendCommand(command, arg1, arg2));
|
|
return NO_ERROR;
|
|
} break;
|
|
case CONNECT: {
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
sp<ICameraClient> cameraClient = interface_cast<ICameraClient>(data.readStrongBinder());
|
|
reply->writeInt32(connect(cameraClient));
|
|
return NO_ERROR;
|
|
} break;
|
|
case LOCK: {
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeInt32(lock());
|
|
return NO_ERROR;
|
|
} break;
|
|
case UNLOCK: {
|
|
CHECK_INTERFACE(ICamera, data, reply);
|
|
reply->writeInt32(unlock());
|
|
return NO_ERROR;
|
|
} break;
|
|
default:
|
|
return BBinder::onTransact(code, data, reply, flags);
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|