186 lines
6.3 KiB
C++
186 lines
6.3 KiB
C++
/*
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**
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** Copyright 2008, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "ICameraClient"
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#include <utils/Log.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <ui/ICameraClient.h>
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namespace android {
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enum {
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SHUTTER_CALLBACK = IBinder::FIRST_CALL_TRANSACTION,
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RAW_CALLBACK,
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JPEG_CALLBACK,
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PREVIEW_CALLBACK,
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ERROR_CALLBACK,
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AUTOFOCUS_CALLBACK,
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RECORDING_CALLBACK,
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};
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class BpCameraClient: public BpInterface<ICameraClient>
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{
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public:
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BpCameraClient(const sp<IBinder>& impl)
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: BpInterface<ICameraClient>(impl)
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{
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}
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// callback to let the app know the shutter has closed, ideal for playing the shutter sound
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void shutterCallback()
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{
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LOGV("shutterCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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remote()->transact(SHUTTER_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// callback from camera service to app with picture data
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void rawCallback(const sp<IMemory>& picture)
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{
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LOGV("rawCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeStrongBinder(picture->asBinder());
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remote()->transact(RAW_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// callback from camera service to app with picture data
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void jpegCallback(const sp<IMemory>& picture)
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{
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LOGV("jpegCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeStrongBinder(picture->asBinder());
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remote()->transact(JPEG_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// callback from camera service to app with preview frame data
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void previewCallback(const sp<IMemory>& frame)
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{
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LOGV("previewCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeStrongBinder(frame->asBinder());
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remote()->transact(PREVIEW_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// callback from camera service to app with recording frame data
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void recordingCallback(const sp<IMemory>& frame)
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{
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LOGV("recordingCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeStrongBinder(frame->asBinder());
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remote()->transact(RECORDING_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// callback from camera service to app to report error
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void errorCallback(status_t error)
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{
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LOGV("errorCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt32(error);
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remote()->transact(ERROR_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// callback from camera service to app to report autofocus completion
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void autoFocusCallback(bool focused)
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{
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LOGV("autoFocusCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt32(focused);
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remote()->transact(AUTOFOCUS_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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};
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IMPLEMENT_META_INTERFACE(CameraClient, "android.hardware.ICameraClient");
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// ----------------------------------------------------------------------
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#define CHECK_INTERFACE(interface, data, reply) \
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do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
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LOGW("Call incorrectly routed to " #interface); \
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return PERMISSION_DENIED; \
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} } while (0)
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status_t BnCameraClient::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case SHUTTER_CALLBACK: {
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LOGV("SHUTTER_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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shutterCallback();
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return NO_ERROR;
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} break;
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case RAW_CALLBACK: {
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LOGV("RAW_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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sp<IMemory> picture = interface_cast<IMemory>(data.readStrongBinder());
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rawCallback(picture);
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return NO_ERROR;
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} break;
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case JPEG_CALLBACK: {
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LOGV("JPEG_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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sp<IMemory> picture = interface_cast<IMemory>(data.readStrongBinder());
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jpegCallback(picture);
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return NO_ERROR;
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} break;
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case PREVIEW_CALLBACK: {
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LOGV("PREVIEW_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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sp<IMemory> frame = interface_cast<IMemory>(data.readStrongBinder());
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previewCallback(frame);
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return NO_ERROR;
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} break;
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case RECORDING_CALLBACK: {
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LOGV("RECORDING_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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sp<IMemory> frame = interface_cast<IMemory>(data.readStrongBinder());
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recordingCallback(frame);
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return NO_ERROR;
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} break;
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case ERROR_CALLBACK: {
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LOGV("ERROR_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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status_t error = data.readInt32();
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errorCallback(error);
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return NO_ERROR;
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} break;
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case AUTOFOCUS_CALLBACK: {
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LOGV("AUTOFOCUS_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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bool focused = (bool)data.readInt32();
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autoFocusCallback(focused);
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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