626 lines
19 KiB
C++
626 lines
19 KiB
C++
/*
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**
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** Copyright 2013, 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 "ICameraDeviceUser"
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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 <binder/Parcel.h>
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#include <camera/camera2/ICameraDeviceUser.h>
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#include <gui/IGraphicBufferProducer.h>
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#include <gui/Surface.h>
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#include <camera/CameraMetadata.h>
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#include <camera/camera2/CaptureRequest.h>
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#include <camera/camera2/OutputConfiguration.h>
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namespace android {
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typedef Parcel::WritableBlob WritableBlob;
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typedef Parcel::ReadableBlob ReadableBlob;
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enum {
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DISCONNECT = IBinder::FIRST_CALL_TRANSACTION,
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SUBMIT_REQUEST,
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SUBMIT_REQUEST_LIST,
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CANCEL_REQUEST,
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BEGIN_CONFIGURE,
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END_CONFIGURE,
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DELETE_STREAM,
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CREATE_STREAM,
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CREATE_INPUT_STREAM,
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GET_INPUT_SURFACE,
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CREATE_DEFAULT_REQUEST,
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GET_CAMERA_INFO,
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WAIT_UNTIL_IDLE,
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FLUSH,
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PREPARE,
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TEAR_DOWN,
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PREPARE2
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};
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namespace {
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// Read empty strings without printing a false error message.
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String16 readMaybeEmptyString16(const Parcel& parcel) {
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size_t len;
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const char16_t* str = parcel.readString16Inplace(&len);
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if (str != NULL) {
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return String16(str, len);
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} else {
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return String16();
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}
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}
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};
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class BpCameraDeviceUser : public BpInterface<ICameraDeviceUser>
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{
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public:
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BpCameraDeviceUser(const sp<IBinder>& impl)
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: BpInterface<ICameraDeviceUser>(impl)
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{
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}
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// disconnect from camera service
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void disconnect()
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{
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ALOGV("disconnect");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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remote()->transact(DISCONNECT, data, &reply);
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reply.readExceptionCode();
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}
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virtual int submitRequest(sp<CaptureRequest> request, bool repeating,
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int64_t *lastFrameNumber)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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// arg0 = CaptureRequest
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if (request != 0) {
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data.writeInt32(1);
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request->writeToParcel(&data);
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} else {
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data.writeInt32(0);
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}
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// arg1 = streaming (bool)
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data.writeInt32(repeating);
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remote()->transact(SUBMIT_REQUEST, data, &reply);
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reply.readExceptionCode();
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status_t res = reply.readInt32();
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status_t resFrameNumber = BAD_VALUE;
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if (reply.readInt32() != 0) {
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if (lastFrameNumber != NULL) {
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resFrameNumber = reply.readInt64(lastFrameNumber);
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}
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}
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if (res < 0 || (resFrameNumber != NO_ERROR)) {
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res = FAILED_TRANSACTION;
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}
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return res;
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}
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virtual int submitRequestList(List<sp<CaptureRequest> > requestList, bool repeating,
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int64_t *lastFrameNumber)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(requestList.size());
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for (List<sp<CaptureRequest> >::iterator it = requestList.begin();
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it != requestList.end(); ++it) {
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sp<CaptureRequest> request = *it;
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if (request != 0) {
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data.writeInt32(1);
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if (request->writeToParcel(&data) != OK) {
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return BAD_VALUE;
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}
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} else {
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data.writeInt32(0);
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}
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}
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data.writeInt32(repeating);
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remote()->transact(SUBMIT_REQUEST_LIST, data, &reply);
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reply.readExceptionCode();
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status_t res = reply.readInt32();
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status_t resFrameNumber = BAD_VALUE;
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if (reply.readInt32() != 0) {
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if (lastFrameNumber != NULL) {
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resFrameNumber = reply.readInt64(lastFrameNumber);
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}
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}
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if (res < 0 || (resFrameNumber != NO_ERROR)) {
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res = FAILED_TRANSACTION;
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}
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return res;
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}
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virtual status_t cancelRequest(int requestId, int64_t *lastFrameNumber)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(requestId);
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remote()->transact(CANCEL_REQUEST, data, &reply);
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reply.readExceptionCode();
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status_t res = reply.readInt32();
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status_t resFrameNumber = BAD_VALUE;
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if (reply.readInt32() != 0) {
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if (lastFrameNumber != NULL) {
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resFrameNumber = reply.readInt64(lastFrameNumber);
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}
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}
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if ((res != NO_ERROR) || (resFrameNumber != NO_ERROR)) {
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res = FAILED_TRANSACTION;
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}
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return res;
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}
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virtual status_t beginConfigure()
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{
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ALOGV("beginConfigure");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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remote()->transact(BEGIN_CONFIGURE, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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virtual status_t endConfigure(bool isConstrainedHighSpeed)
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{
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ALOGV("endConfigure");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(isConstrainedHighSpeed);
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remote()->transact(END_CONFIGURE, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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virtual status_t deleteStream(int streamId)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(streamId);
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remote()->transact(DELETE_STREAM, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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virtual status_t createStream(const OutputConfiguration& outputConfiguration)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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if (outputConfiguration.getGraphicBufferProducer() != NULL) {
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data.writeInt32(1); // marker that OutputConfiguration is not null. Mimic aidl behavior
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outputConfiguration.writeToParcel(data);
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} else {
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data.writeInt32(0);
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}
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remote()->transact(CREATE_STREAM, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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virtual status_t createInputStream(int width, int height, int format)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(width);
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data.writeInt32(height);
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data.writeInt32(format);
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remote()->transact(CREATE_INPUT_STREAM, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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// get the buffer producer of the input stream
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virtual status_t getInputBufferProducer(
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sp<IGraphicBufferProducer> *producer) {
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if (producer == NULL) {
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return BAD_VALUE;
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}
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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remote()->transact(GET_INPUT_SURFACE, data, &reply);
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reply.readExceptionCode();
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status_t result = reply.readInt32() ;
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if (result != OK) {
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return result;
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}
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sp<IGraphicBufferProducer> bp = NULL;
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if (reply.readInt32() != 0) {
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String16 name = readMaybeEmptyString16(reply);
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bp = interface_cast<IGraphicBufferProducer>(
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reply.readStrongBinder());
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}
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*producer = bp;
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return *producer == NULL ? INVALID_OPERATION : OK;
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}
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// Create a request object from a template.
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virtual status_t createDefaultRequest(int templateId,
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/*out*/
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CameraMetadata* request)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(templateId);
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remote()->transact(CREATE_DEFAULT_REQUEST, data, &reply);
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reply.readExceptionCode();
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status_t result = reply.readInt32();
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CameraMetadata out;
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if (reply.readInt32() != 0) {
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out.readFromParcel(&reply);
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}
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if (request != NULL) {
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request->swap(out);
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}
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return result;
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}
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virtual status_t getCameraInfo(CameraMetadata* info)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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remote()->transact(GET_CAMERA_INFO, data, &reply);
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reply.readExceptionCode();
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status_t result = reply.readInt32();
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CameraMetadata out;
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if (reply.readInt32() != 0) {
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out.readFromParcel(&reply);
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}
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if (info != NULL) {
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info->swap(out);
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}
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return result;
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}
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virtual status_t waitUntilIdle()
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{
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ALOGV("waitUntilIdle");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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remote()->transact(WAIT_UNTIL_IDLE, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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virtual status_t flush(int64_t *lastFrameNumber)
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{
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ALOGV("flush");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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remote()->transact(FLUSH, data, &reply);
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reply.readExceptionCode();
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status_t res = reply.readInt32();
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status_t resFrameNumber = BAD_VALUE;
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if (reply.readInt32() != 0) {
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if (lastFrameNumber != NULL) {
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resFrameNumber = reply.readInt64(lastFrameNumber);
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}
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}
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if ((res != NO_ERROR) || (resFrameNumber != NO_ERROR)) {
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res = FAILED_TRANSACTION;
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}
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return res;
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}
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virtual status_t prepare(int streamId)
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{
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ALOGV("prepare");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(streamId);
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remote()->transact(PREPARE, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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virtual status_t prepare2(int maxCount, int streamId)
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{
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ALOGV("prepare2");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(maxCount);
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data.writeInt32(streamId);
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remote()->transact(PREPARE2, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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virtual status_t tearDown(int streamId)
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{
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ALOGV("tearDown");
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Parcel data, reply;
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data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
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data.writeInt32(streamId);
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remote()->transact(TEAR_DOWN, data, &reply);
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reply.readExceptionCode();
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return reply.readInt32();
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}
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private:
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};
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IMPLEMENT_META_INTERFACE(CameraDeviceUser,
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"android.hardware.camera2.ICameraDeviceUser");
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// ----------------------------------------------------------------------
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status_t BnCameraDeviceUser::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 DISCONNECT: {
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ALOGV("DISCONNECT");
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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disconnect();
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reply->writeNoException();
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return NO_ERROR;
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} break;
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case SUBMIT_REQUEST: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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// arg0 = request
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sp<CaptureRequest> request;
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if (data.readInt32() != 0) {
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request = new CaptureRequest();
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request->readFromParcel(const_cast<Parcel*>(&data));
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}
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// arg1 = streaming (bool)
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bool repeating = data.readInt32();
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// return code: requestId (int32)
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reply->writeNoException();
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int64_t lastFrameNumber = -1;
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reply->writeInt32(submitRequest(request, repeating, &lastFrameNumber));
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reply->writeInt32(1);
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reply->writeInt64(lastFrameNumber);
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return NO_ERROR;
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} break;
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case SUBMIT_REQUEST_LIST: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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List<sp<CaptureRequest> > requestList;
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int requestListSize = data.readInt32();
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for (int i = 0; i < requestListSize; i++) {
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if (data.readInt32() != 0) {
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sp<CaptureRequest> request = new CaptureRequest();
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if (request->readFromParcel(const_cast<Parcel*>(&data)) != OK) {
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return BAD_VALUE;
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}
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requestList.push_back(request);
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} else {
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sp<CaptureRequest> request = 0;
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requestList.push_back(request);
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ALOGE("A request is missing. Sending in null request.");
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}
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}
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bool repeating = data.readInt32();
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reply->writeNoException();
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int64_t lastFrameNumber = -1;
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reply->writeInt32(submitRequestList(requestList, repeating, &lastFrameNumber));
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reply->writeInt32(1);
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reply->writeInt64(lastFrameNumber);
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return NO_ERROR;
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} break;
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case CANCEL_REQUEST: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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int requestId = data.readInt32();
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reply->writeNoException();
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int64_t lastFrameNumber = -1;
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reply->writeInt32(cancelRequest(requestId, &lastFrameNumber));
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reply->writeInt32(1);
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reply->writeInt64(lastFrameNumber);
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return NO_ERROR;
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} break;
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case DELETE_STREAM: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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int streamId = data.readInt32();
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reply->writeNoException();
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reply->writeInt32(deleteStream(streamId));
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return NO_ERROR;
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} break;
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case CREATE_STREAM: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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status_t ret = BAD_VALUE;
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if (data.readInt32() != 0) {
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OutputConfiguration outputConfiguration(data);
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ret = createStream(outputConfiguration);
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} else {
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ALOGE("%s: cannot take an empty OutputConfiguration", __FUNCTION__);
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}
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reply->writeNoException();
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ALOGV("%s: CREATE_STREAM: write noException", __FUNCTION__);
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reply->writeInt32(ret);
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ALOGV("%s: CREATE_STREAM: write ret = %d", __FUNCTION__, ret);
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return NO_ERROR;
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} break;
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case CREATE_INPUT_STREAM: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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int width, height, format;
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width = data.readInt32();
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height = data.readInt32();
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format = data.readInt32();
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status_t ret = createInputStream(width, height, format);
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reply->writeNoException();
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reply->writeInt32(ret);
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return NO_ERROR;
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} break;
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case GET_INPUT_SURFACE: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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sp<IGraphicBufferProducer> bp;
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status_t ret = getInputBufferProducer(&bp);
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sp<IBinder> b(IInterface::asBinder(ret == OK ? bp : NULL));
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reply->writeNoException();
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reply->writeInt32(ret);
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reply->writeInt32(1);
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reply->writeString16(String16("camera input")); // name of surface
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reply->writeStrongBinder(b);
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return NO_ERROR;
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} break;
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case CREATE_DEFAULT_REQUEST: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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int templateId = data.readInt32();
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CameraMetadata request;
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status_t ret;
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ret = createDefaultRequest(templateId, &request);
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reply->writeNoException();
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reply->writeInt32(ret);
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// out-variables are after exception and return value
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reply->writeInt32(1); // to mark presence of metadata object
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request.writeToParcel(const_cast<Parcel*>(reply));
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return NO_ERROR;
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} break;
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case GET_CAMERA_INFO: {
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CHECK_INTERFACE(ICameraDeviceUser, data, reply);
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CameraMetadata info;
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status_t ret;
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ret = getCameraInfo(&info);
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reply->writeNoException();
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reply->writeInt32(ret);
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// out-variables are after exception and return value
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reply->writeInt32(1); // to mark presence of metadata object
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info.writeToParcel(reply);
|
|
|
|
return NO_ERROR;
|
|
} break;
|
|
case WAIT_UNTIL_IDLE: {
|
|
CHECK_INTERFACE(ICameraDeviceUser, data, reply);
|
|
reply->writeNoException();
|
|
reply->writeInt32(waitUntilIdle());
|
|
return NO_ERROR;
|
|
} break;
|
|
case FLUSH: {
|
|
CHECK_INTERFACE(ICameraDeviceUser, data, reply);
|
|
reply->writeNoException();
|
|
int64_t lastFrameNumber = -1;
|
|
reply->writeInt32(flush(&lastFrameNumber));
|
|
reply->writeInt32(1);
|
|
reply->writeInt64(lastFrameNumber);
|
|
return NO_ERROR;
|
|
}
|
|
case BEGIN_CONFIGURE: {
|
|
CHECK_INTERFACE(ICameraDeviceUser, data, reply);
|
|
reply->writeNoException();
|
|
reply->writeInt32(beginConfigure());
|
|
return NO_ERROR;
|
|
} break;
|
|
case END_CONFIGURE: {
|
|
CHECK_INTERFACE(ICameraDeviceUser, data, reply);
|
|
bool isConstrainedHighSpeed = data.readInt32();
|
|
reply->writeNoException();
|
|
reply->writeInt32(endConfigure(isConstrainedHighSpeed));
|
|
return NO_ERROR;
|
|
} break;
|
|
case PREPARE: {
|
|
CHECK_INTERFACE(ICameraDeviceUser, data, reply);
|
|
int streamId = data.readInt32();
|
|
reply->writeNoException();
|
|
reply->writeInt32(prepare(streamId));
|
|
return NO_ERROR;
|
|
} break;
|
|
case TEAR_DOWN: {
|
|
CHECK_INTERFACE(ICameraDeviceUser, data, reply);
|
|
int streamId = data.readInt32();
|
|
reply->writeNoException();
|
|
reply->writeInt32(tearDown(streamId));
|
|
return NO_ERROR;
|
|
} break;
|
|
case PREPARE2: {
|
|
CHECK_INTERFACE(ICameraDeviceUser, data, reply);
|
|
int maxCount = data.readInt32();
|
|
int streamId = data.readInt32();
|
|
reply->writeNoException();
|
|
reply->writeInt32(prepare2(maxCount, streamId));
|
|
return NO_ERROR;
|
|
} break;
|
|
default:
|
|
return BBinder::onTransact(code, data, reply, flags);
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|