143 lines
5.2 KiB
C++
143 lines
5.2 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 <camera/ICameraClient.h>
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namespace android {
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enum {
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NOTIFY_CALLBACK = IBinder::FIRST_CALL_TRANSACTION,
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DATA_CALLBACK,
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DATA_CALLBACK_TIMESTAMP,
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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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// generic callback from camera service to app
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void notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2)
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{
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ALOGV("notifyCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt32(msgType);
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data.writeInt32(ext1);
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if ((msgType == CAMERA_MSG_PREVIEW_FRAME) && (ext1 == CAMERA_FRAME_DATA_FD)) {
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ALOGD("notifyCallback: CAMERA_MSG_PREVIEW_FRAME fd = %d", ext2);
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data.writeFileDescriptor(ext2);
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} else {
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data.writeInt32(ext2);
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}
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remote()->transact(NOTIFY_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// generic data callback from camera service to app with image data
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void dataCallback(int32_t msgType, const sp<IMemory>& imageData,
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camera_frame_metadata_t *metadata)
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{
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ALOGV("dataCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt32(msgType);
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data.writeStrongBinder(IInterface::asBinder(imageData));
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if (metadata) {
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data.writeInt32(metadata->number_of_faces);
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data.write(metadata->faces, sizeof(camera_face_t) * metadata->number_of_faces);
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}
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remote()->transact(DATA_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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// generic data callback from camera service to app with image data
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void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& imageData)
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{
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ALOGV("dataCallback");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
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data.writeInt64(timestamp);
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data.writeInt32(msgType);
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data.writeStrongBinder(IInterface::asBinder(imageData));
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remote()->transact(DATA_CALLBACK_TIMESTAMP, 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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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 NOTIFY_CALLBACK: {
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ALOGV("NOTIFY_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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int32_t msgType = data.readInt32();
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int32_t ext1 = data.readInt32();
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int32_t ext2 = 0;
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if ((msgType == CAMERA_MSG_PREVIEW_FRAME) && (ext1 == CAMERA_FRAME_DATA_FD)) {
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ext2 = data.readFileDescriptor();
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ALOGD("onTransact: CAMERA_MSG_PREVIEW_FRAME fd = %d", ext2);
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} else {
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ext2 = data.readInt32();
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}
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notifyCallback(msgType, ext1, ext2);
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return NO_ERROR;
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} break;
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case DATA_CALLBACK: {
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ALOGV("DATA_CALLBACK");
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CHECK_INTERFACE(ICameraClient, data, reply);
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int32_t msgType = data.readInt32();
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sp<IMemory> imageData = interface_cast<IMemory>(data.readStrongBinder());
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camera_frame_metadata_t *metadata = NULL;
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if (data.dataAvail() > 0) {
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metadata = new camera_frame_metadata_t;
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metadata->number_of_faces = data.readInt32();
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metadata->faces = (camera_face_t *) data.readInplace(
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sizeof(camera_face_t) * metadata->number_of_faces);
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}
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dataCallback(msgType, imageData, metadata);
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if (metadata) delete metadata;
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return NO_ERROR;
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} break;
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case DATA_CALLBACK_TIMESTAMP: {
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ALOGV("DATA_CALLBACK_TIMESTAMP");
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CHECK_INTERFACE(ICameraClient, data, reply);
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nsecs_t timestamp = data.readInt64();
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int32_t msgType = data.readInt32();
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sp<IMemory> imageData = interface_cast<IMemory>(data.readStrongBinder());
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dataCallbackTimestamp(timestamp, msgType, imageData);
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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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