/*
* Copyright (C) 2012 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.
*/
/*
* Contains implementation of a class EmulatedCamera that encapsulates
* functionality common to all version 2.0 emulated camera devices. Instances
* of this class (for each emulated camera) are created during the construction
* of the EmulatedCameraFactory instance. This class serves as an entry point
* for all camera API calls that defined by camera2_device_ops_t API.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "EmulatedCamera2_Camera"
#include <cutils/log.h>
#include "EmulatedCamera2.h"
#include "system/camera_metadata.h"
namespace android {
/* Constructs EmulatedCamera2 instance.
* Param:
* cameraId - Zero based camera identifier, which is an index of the camera
* instance in camera factory's array.
* module - Emulated camera HAL module descriptor.
*/
EmulatedCamera2::EmulatedCamera2(int cameraId,
struct hw_module_t* module):
EmulatedBaseCamera(cameraId,
CAMERA_DEVICE_API_VERSION_2_0,
&common,
module)
{
common.close = EmulatedCamera2::close;
ops = &sDeviceOps;
priv = this;
mNotifyCb = NULL;
mRequestQueueSrc = NULL;
mFrameQueueDst = NULL;
mVendorTagOps.get_camera_vendor_section_name =
EmulatedCamera2::get_camera_vendor_section_name;
mVendorTagOps.get_camera_vendor_tag_name =
EmulatedCamera2::get_camera_vendor_tag_name;
mVendorTagOps.get_camera_vendor_tag_type =
EmulatedCamera2::get_camera_vendor_tag_type;
mVendorTagOps.parent = this;
mStatusPresent = true;
}
/* Destructs EmulatedCamera2 instance. */
EmulatedCamera2::~EmulatedCamera2() {
}
/****************************************************************************
* Abstract API
***************************************************************************/
/****************************************************************************
* Public API
***************************************************************************/
status_t EmulatedCamera2::Initialize() {
return NO_ERROR;
}
/****************************************************************************
* Camera API implementation
***************************************************************************/
status_t EmulatedCamera2::connectCamera(hw_device_t** device) {
*device = &common;
return NO_ERROR;
}
status_t EmulatedCamera2::closeCamera() {
return NO_ERROR;
}
status_t EmulatedCamera2::getCameraInfo(struct camera_info* info) {
return EmulatedBaseCamera::getCameraInfo(info);
}
/****************************************************************************
* Camera Device API implementation.
* These methods are called from the camera API callback routines.
***************************************************************************/
/** Request input queue */
int EmulatedCamera2::requestQueueNotify() {
return INVALID_OPERATION;
}
/** Count of requests in flight */
int EmulatedCamera2::getInProgressCount() {
return INVALID_OPERATION;
}
/** Cancel all captures in flight */
int EmulatedCamera2::flushCapturesInProgress() {
return INVALID_OPERATION;
}
/** Construct a default request for a given use case */
int EmulatedCamera2::constructDefaultRequest(
int request_template,
camera_metadata_t **request) {
return INVALID_OPERATION;
}
/** Output stream creation and management */
int EmulatedCamera2::allocateStream(
uint32_t width,
uint32_t height,
int format,
const camera2_stream_ops_t *stream_ops,
uint32_t *stream_id,
uint32_t *format_actual,
uint32_t *usage,
uint32_t *max_buffers) {
return INVALID_OPERATION;
}
int EmulatedCamera2::registerStreamBuffers(
uint32_t stream_id,
int num_buffers,
buffer_handle_t *buffers) {
return INVALID_OPERATION;
}
int EmulatedCamera2::releaseStream(uint32_t stream_id) {
return INVALID_OPERATION;
}
/** Reprocessing input stream management */
int EmulatedCamera2::allocateReprocessStream(
uint32_t width,
uint32_t height,
uint32_t format,
const camera2_stream_in_ops_t *reprocess_stream_ops,
uint32_t *stream_id,
uint32_t *consumer_usage,
uint32_t *max_buffers) {
return INVALID_OPERATION;
}
int EmulatedCamera2::allocateReprocessStreamFromStream(
uint32_t output_stream_id,
const camera2_stream_in_ops_t *reprocess_stream_ops,
uint32_t *stream_id) {
return INVALID_OPERATION;
}
int EmulatedCamera2::releaseReprocessStream(uint32_t stream_id) {
return INVALID_OPERATION;
}
/** 3A triggering */
int EmulatedCamera2::triggerAction(uint32_t trigger_id,
int ext1, int ext2) {
return INVALID_OPERATION;
}
/** Custom tag query methods */
const char* EmulatedCamera2::getVendorSectionName(uint32_t tag) {
return NULL;
}
const char* EmulatedCamera2::getVendorTagName(uint32_t tag) {
return NULL;
}
int EmulatedCamera2::getVendorTagType(uint32_t tag) {
return -1;
}
/** Debug methods */
int EmulatedCamera2::dump(int fd) {
return INVALID_OPERATION;
}
/****************************************************************************
* Private API.
***************************************************************************/
/****************************************************************************
* Camera API callbacks as defined by camera2_device_ops structure. See
* hardware/libhardware/include/hardware/camera2.h for information on each
* of these callbacks. Implemented in this class, these callbacks simply
* dispatch the call into an instance of EmulatedCamera2 class defined by the
* 'camera_device2' parameter, or set a member value in the same.
***************************************************************************/
EmulatedCamera2* getInstance(const camera2_device_t *d) {
const EmulatedCamera2* cec = static_cast<const EmulatedCamera2*>(d);
return const_cast<EmulatedCamera2*>(cec);
}
int EmulatedCamera2::set_request_queue_src_ops(const camera2_device_t *d,
const camera2_request_queue_src_ops *queue_src_ops) {
EmulatedCamera2* ec = getInstance(d);
ec->mRequestQueueSrc = queue_src_ops;
return NO_ERROR;
}
int EmulatedCamera2::notify_request_queue_not_empty(const camera2_device_t *d) {
EmulatedCamera2* ec = getInstance(d);
return ec->requestQueueNotify();
}
int EmulatedCamera2::set_frame_queue_dst_ops(const camera2_device_t *d,
const camera2_frame_queue_dst_ops *queue_dst_ops) {
EmulatedCamera2* ec = getInstance(d);
ec->mFrameQueueDst = queue_dst_ops;
return NO_ERROR;
}
int EmulatedCamera2::get_in_progress_count(const camera2_device_t *d) {
EmulatedCamera2* ec = getInstance(d);
return ec->getInProgressCount();
}
int EmulatedCamera2::flush_captures_in_progress(const camera2_device_t *d) {
EmulatedCamera2* ec = getInstance(d);
return ec->flushCapturesInProgress();
}
int EmulatedCamera2::construct_default_request(const camera2_device_t *d,
int request_template,
camera_metadata_t **request) {
EmulatedCamera2* ec = getInstance(d);
return ec->constructDefaultRequest(request_template, request);
}
int EmulatedCamera2::allocate_stream(const camera2_device_t *d,
uint32_t width,
uint32_t height,
int format,
const camera2_stream_ops_t *stream_ops,
uint32_t *stream_id,
uint32_t *format_actual,
uint32_t *usage,
uint32_t *max_buffers) {
EmulatedCamera2* ec = getInstance(d);
return ec->allocateStream(width, height, format, stream_ops,
stream_id, format_actual, usage, max_buffers);
}
int EmulatedCamera2::register_stream_buffers(const camera2_device_t *d,
uint32_t stream_id,
int num_buffers,
buffer_handle_t *buffers) {
EmulatedCamera2* ec = getInstance(d);
return ec->registerStreamBuffers(stream_id,
num_buffers,
buffers);
}
int EmulatedCamera2::release_stream(const camera2_device_t *d,
uint32_t stream_id) {
EmulatedCamera2* ec = getInstance(d);
return ec->releaseStream(stream_id);
}
int EmulatedCamera2::allocate_reprocess_stream(const camera2_device_t *d,
uint32_t width,
uint32_t height,
uint32_t format,
const camera2_stream_in_ops_t *reprocess_stream_ops,
uint32_t *stream_id,
uint32_t *consumer_usage,
uint32_t *max_buffers) {
EmulatedCamera2* ec = getInstance(d);
return ec->allocateReprocessStream(width, height, format,
reprocess_stream_ops, stream_id, consumer_usage, max_buffers);
}
int EmulatedCamera2::allocate_reprocess_stream_from_stream(
const camera2_device_t *d,
uint32_t output_stream_id,
const camera2_stream_in_ops_t *reprocess_stream_ops,
uint32_t *stream_id) {
EmulatedCamera2* ec = getInstance(d);
return ec->allocateReprocessStreamFromStream(output_stream_id,
reprocess_stream_ops, stream_id);
}
int EmulatedCamera2::release_reprocess_stream(const camera2_device_t *d,
uint32_t stream_id) {
EmulatedCamera2* ec = getInstance(d);
return ec->releaseReprocessStream(stream_id);
}
int EmulatedCamera2::trigger_action(const camera2_device_t *d,
uint32_t trigger_id,
int ext1,
int ext2) {
EmulatedCamera2* ec = getInstance(d);
return ec->triggerAction(trigger_id, ext1, ext2);
}
int EmulatedCamera2::set_notify_callback(const camera2_device_t *d,
camera2_notify_callback notify_cb, void* user) {
EmulatedCamera2* ec = getInstance(d);
Mutex::Autolock l(ec->mMutex);
ec->mNotifyCb = notify_cb;
ec->mNotifyUserPtr = user;
return NO_ERROR;
}
int EmulatedCamera2::get_metadata_vendor_tag_ops(const camera2_device_t *d,
vendor_tag_query_ops_t **ops) {
EmulatedCamera2* ec = getInstance(d);
*ops = static_cast<vendor_tag_query_ops_t*>(
&ec->mVendorTagOps);
return NO_ERROR;
}
const char* EmulatedCamera2::get_camera_vendor_section_name(
const vendor_tag_query_ops_t *v,
uint32_t tag) {
EmulatedCamera2* ec = static_cast<const TagOps*>(v)->parent;
return ec->getVendorSectionName(tag);
}
const char* EmulatedCamera2::get_camera_vendor_tag_name(
const vendor_tag_query_ops_t *v,
uint32_t tag) {
EmulatedCamera2* ec = static_cast<const TagOps*>(v)->parent;
return ec->getVendorTagName(tag);
}
int EmulatedCamera2::get_camera_vendor_tag_type(
const vendor_tag_query_ops_t *v,
uint32_t tag) {
EmulatedCamera2* ec = static_cast<const TagOps*>(v)->parent;
return ec->getVendorTagType(tag);
}
int EmulatedCamera2::dump(const camera2_device_t *d, int fd) {
EmulatedCamera2* ec = getInstance(d);
return ec->dump(fd);
}
int EmulatedCamera2::close(struct hw_device_t* device) {
EmulatedCamera2* ec =
static_cast<EmulatedCamera2*>(
reinterpret_cast<camera2_device_t*>(device) );
if (ec == NULL) {
ALOGE("%s: Unexpected NULL camera2 device", __FUNCTION__);
return -EINVAL;
}
return ec->closeCamera();
}
void EmulatedCamera2::sendNotification(int32_t msgType,
int32_t ext1, int32_t ext2, int32_t ext3) {
camera2_notify_callback notifyCb;
{
Mutex::Autolock l(mMutex);
notifyCb = mNotifyCb;
}
if (notifyCb != NULL) {
notifyCb(msgType, ext1, ext2, ext3, mNotifyUserPtr);
}
}
camera2_device_ops_t EmulatedCamera2::sDeviceOps = {
EmulatedCamera2::set_request_queue_src_ops,
EmulatedCamera2::notify_request_queue_not_empty,
EmulatedCamera2::set_frame_queue_dst_ops,
EmulatedCamera2::get_in_progress_count,
EmulatedCamera2::flush_captures_in_progress,
EmulatedCamera2::construct_default_request,
EmulatedCamera2::allocate_stream,
EmulatedCamera2::register_stream_buffers,
EmulatedCamera2::release_stream,
EmulatedCamera2::allocate_reprocess_stream,
EmulatedCamera2::allocate_reprocess_stream_from_stream,
EmulatedCamera2::release_reprocess_stream,
EmulatedCamera2::trigger_action,
EmulatedCamera2::set_notify_callback,
EmulatedCamera2::get_metadata_vendor_tag_ops,
EmulatedCamera2::dump
};
}; /* namespace android */