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275 lines
8.6 KiB
275 lines
8.6 KiB
/*
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* Copyright (C) 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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/**
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* Contains implementation of a class EmulatedCamera that encapsulates
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* functionality common to all version 3.0 emulated camera devices. Instances
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* of this class (for each emulated camera) are created during the construction
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* of the EmulatedCameraFactory instance. This class serves as an entry point
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* for all camera API calls that defined by camera3_device_ops_t API.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "EmulatedCamera3_Camera"
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#include <log/log.h>
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#include "EmulatedCamera3.h"
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#include "system/camera_metadata.h"
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namespace android {
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/**
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* Constructs EmulatedCamera3 instance.
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* Param:
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* cameraId - Zero based camera identifier, which is an index of the camera
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* instance in camera factory's array.
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* module - Emulated camera HAL module descriptor.
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*/
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EmulatedCamera3::EmulatedCamera3(int cameraId,
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struct hw_module_t* module):
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EmulatedBaseCamera(cameraId,
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CAMERA_DEVICE_API_VERSION_3_3,
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&common,
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module),
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mStatus(STATUS_ERROR)
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{
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common.close = EmulatedCamera3::close;
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ops = &sDeviceOps;
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mCallbackOps = NULL;
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}
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/* Destructs EmulatedCamera3 instance. */
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EmulatedCamera3::~EmulatedCamera3() {
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}
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/****************************************************************************
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* Abstract API
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***************************************************************************/
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/****************************************************************************
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* Public API
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***************************************************************************/
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status_t EmulatedCamera3::Initialize() {
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ALOGV("%s", __FUNCTION__);
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mStatus = STATUS_CLOSED;
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return NO_ERROR;
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}
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/****************************************************************************
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* Camera API implementation
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***************************************************************************/
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status_t EmulatedCamera3::connectCamera(hw_device_t** device) {
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ALOGV("%s", __FUNCTION__);
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if (device == NULL) return BAD_VALUE;
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if (mStatus != STATUS_CLOSED) {
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ALOGE("%s: Trying to open a camera in state %d!",
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__FUNCTION__, mStatus);
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return INVALID_OPERATION;
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}
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*device = &common;
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mStatus = STATUS_OPEN;
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return NO_ERROR;
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}
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status_t EmulatedCamera3::closeCamera() {
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mStatus = STATUS_CLOSED;
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return NO_ERROR;
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}
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status_t EmulatedCamera3::getCameraInfo(struct camera_info* info) {
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return EmulatedBaseCamera::getCameraInfo(info);
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}
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/****************************************************************************
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* Camera Device API implementation.
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* These methods are called from the camera API callback routines.
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***************************************************************************/
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status_t EmulatedCamera3::initializeDevice(
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const camera3_callback_ops *callbackOps) {
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if (callbackOps == NULL) {
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ALOGE("%s: NULL callback ops provided to HAL!",
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__FUNCTION__);
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return BAD_VALUE;
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}
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if (mStatus != STATUS_OPEN) {
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ALOGE("%s: Trying to initialize a camera in state %d!",
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__FUNCTION__, mStatus);
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return INVALID_OPERATION;
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}
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mCallbackOps = callbackOps;
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mStatus = STATUS_READY;
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return NO_ERROR;
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}
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status_t EmulatedCamera3::configureStreams(
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camera3_stream_configuration *streamList) {
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ALOGE("%s: Not implemented", __FUNCTION__);
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return INVALID_OPERATION;
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}
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status_t EmulatedCamera3::registerStreamBuffers(
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const camera3_stream_buffer_set *bufferSet) {
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ALOGE("%s: Not implemented", __FUNCTION__);
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return INVALID_OPERATION;
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}
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const camera_metadata_t* EmulatedCamera3::constructDefaultRequestSettings(
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int type) {
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ALOGE("%s: Not implemented", __FUNCTION__);
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return NULL;
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}
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status_t EmulatedCamera3::processCaptureRequest(
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camera3_capture_request *request) {
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ALOGE("%s: Not implemented", __FUNCTION__);
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return INVALID_OPERATION;
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}
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status_t EmulatedCamera3::flush() {
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ALOGE("%s: Not implemented", __FUNCTION__);
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return INVALID_OPERATION;
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}
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/** Debug methods */
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void EmulatedCamera3::dump(int fd) {
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ALOGE("%s: Not implemented", __FUNCTION__);
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return;
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}
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/****************************************************************************
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* Protected API. Callbacks to the framework.
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***************************************************************************/
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void EmulatedCamera3::sendCaptureResult(camera3_capture_result_t *result) {
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mCallbackOps->process_capture_result(mCallbackOps, result);
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}
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void EmulatedCamera3::sendNotify(camera3_notify_msg_t *msg) {
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mCallbackOps->notify(mCallbackOps, msg);
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}
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/****************************************************************************
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* Private API.
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***************************************************************************/
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/****************************************************************************
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* Camera API callbacks as defined by camera3_device_ops structure. See
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* hardware/libhardware/include/hardware/camera3.h for information on each
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* of these callbacks. Implemented in this class, these callbacks simply
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* dispatch the call into an instance of EmulatedCamera3 class defined by the
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* 'camera_device3' parameter, or set a member value in the same.
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***************************************************************************/
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EmulatedCamera3* getInstance(const camera3_device_t *d) {
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const EmulatedCamera3* cec = static_cast<const EmulatedCamera3*>(d);
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return const_cast<EmulatedCamera3*>(cec);
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}
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int EmulatedCamera3::initialize(const struct camera3_device *d,
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const camera3_callback_ops_t *callback_ops) {
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EmulatedCamera3* ec = getInstance(d);
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return ec->initializeDevice(callback_ops);
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}
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int EmulatedCamera3::configure_streams(const struct camera3_device *d,
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camera3_stream_configuration_t *stream_list) {
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EmulatedCamera3* ec = getInstance(d);
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return ec->configureStreams(stream_list);
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}
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int EmulatedCamera3::register_stream_buffers(
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const struct camera3_device *d,
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const camera3_stream_buffer_set_t *buffer_set) {
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EmulatedCamera3* ec = getInstance(d);
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return ec->registerStreamBuffers(buffer_set);
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}
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int EmulatedCamera3::process_capture_request(
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const struct camera3_device *d,
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camera3_capture_request_t *request) {
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EmulatedCamera3* ec = getInstance(d);
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return ec->processCaptureRequest(request);
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}
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const camera_metadata_t* EmulatedCamera3::construct_default_request_settings(
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const camera3_device_t *d, int type) {
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EmulatedCamera3* ec = getInstance(d);
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return ec->constructDefaultRequestSettings(type);
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}
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void EmulatedCamera3::dump(const camera3_device_t *d, int fd) {
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EmulatedCamera3* ec = getInstance(d);
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ec->dump(fd);
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}
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int EmulatedCamera3::flush(const camera3_device_t *d) {
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EmulatedCamera3* ec = getInstance(d);
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return ec->flush();
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}
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int EmulatedCamera3::close(struct hw_device_t* device) {
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EmulatedCamera3* ec =
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static_cast<EmulatedCamera3*>(
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reinterpret_cast<camera3_device_t*>(device) );
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if (ec == NULL) {
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ALOGE("%s: Unexpected NULL camera3 device", __FUNCTION__);
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return BAD_VALUE;
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}
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return ec->closeCamera();
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}
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camera3_device_ops_t EmulatedCamera3::sDeviceOps = {
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EmulatedCamera3::initialize,
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EmulatedCamera3::configure_streams,
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/* DEPRECATED: register_stream_buffers */ nullptr,
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EmulatedCamera3::construct_default_request_settings,
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EmulatedCamera3::process_capture_request,
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/* DEPRECATED: get_metadata_vendor_tag_ops */ nullptr,
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EmulatedCamera3::dump,
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EmulatedCamera3::flush,
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/* UNUSED: signal_stream_flush */ nullptr,
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/* UNUSED: is_reconfiguration_required */ nullptr,
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/* RESERVED */ { nullptr },
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};
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const char* EmulatedCamera3::sAvailableCapabilitiesStrings[NUM_CAPABILITIES] = {
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"BACKWARD_COMPATIBLE",
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"MANUAL_SENSOR",
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"MANUAL_POST_PROCESSING",
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"RAW",
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"PRIVATE_REPROCESSING",
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"READ_SENSOR_SETTINGS",
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"BURST_CAPTURE",
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"YUV_REPROCESSING",
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"DEPTH_OUTPUT",
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"CONSTRAINED_HIGH_SPEED_VIDEO",
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"FULL_LEVEL"
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};
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}; /* namespace android */
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