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arvuvstream.c
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/* Aravis - Digital camera library
*
* Copyright © 2009-2022 Emmanuel Pacaud
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* Author: Emmanuel Pacaud <emmanuel.pacaud@free.fr>
*/
/**
* SECTION: arvuvstream
* @short_description: USB3Vision video stream
*/
#include <arvenumtypes.h>
#include <arvuvstreamprivate.h>
#include <arvstreamprivate.h>
#include <arvbufferprivate.h>
#include <arvuvspprivate.h>
#include <arvuvcpprivate.h>
#include <arvdebug.h>
#include <arvmisc.h>
#include <libusb.h>
#include <string.h>
#define ARV_UV_STREAM_MAXIMUM_TRANSFER_SIZE (1024*1024*1)
#define ARV_UV_STREAM_MAXIMUM_SUBMIT_TOTAL (8*1024*1024)
#define ARV_UV_STREAM_POP_INPUT_BUFFER_TIMEOUT_MS 10
#define ARV_UV_STREAM_TRANSFER_WAIT_TIMEOUT_MS 10
enum {
ARV_UV_STREAM_PROPERTY_0,
ARV_UV_STREAM_PROPERTY_USB_MODE
} ArvUvStreamProperties;
/* Acquisition thread */
typedef struct {
guint64 n_completed_buffers;
guint64 n_failures;
guint64 n_underruns;
guint64 n_aborted;
guint64 n_transferred_bytes;
guint64 n_ignored_bytes;
} ArvStreamStatistics;
typedef struct {
ArvStream *stream;
gboolean thread_started;
GMutex thread_started_mutex;
GCond thread_started_cond;
ArvUvDevice *uv_device;
ArvStreamCallback callback;
void *callback_data;
size_t expected_size;
size_t leader_size;
size_t payload_size;
guint32 payload_count;
size_t transfer1_size;
size_t trailer_size;
gboolean cancel;
/* Notification for completed transfers and cancellation */
GMutex stream_mtx;
GCond stream_event;
/* Statistics */
ArvStreamStatistics statistics;
gint n_buffer_in_use;
} ArvUvStreamThreadData;
typedef struct {
GThread *thread;
ArvUvStreamThreadData *thread_data;
ArvUvUsbMode usb_mode;
guint64 sirm_address;
} ArvUvStreamPrivate;
struct _ArvUvStream {
ArvStream stream;
};
struct _ArvUvStreamClass {
ArvStreamClass parent_class;
};
typedef struct {
ArvBuffer *buffer;
ArvStream *stream;
ArvStreamCallback callback;
gpointer callback_data;
GMutex* transfer_completed_mtx;
GCond* transfer_completed_event;
size_t total_payload_transferred;
size_t expected_size;
guint8 *leader_buffer, *trailer_buffer;
int num_payload_transfers;
struct libusb_transfer *leader_transfer, *trailer_transfer, **payload_transfers;
guint num_submitted;
gint *total_submitted_bytes;
gboolean is_aborting;
ArvStreamStatistics *statistics;
gint *n_buffer_in_use;
} ArvUvStreamBufferContext;
G_DEFINE_TYPE_WITH_CODE (ArvUvStream, arv_uv_stream, ARV_TYPE_STREAM, G_ADD_PRIVATE (ArvUvStream))
static void
arv_uv_stream_buffer_context_wait_transfer_completed (ArvUvStreamBufferContext* ctx, gint64 timeout_ms)
{
g_mutex_lock( ctx->transfer_completed_mtx );
if (timeout_ms > 0) {
gint64 end_time;
end_time = g_get_monotonic_time() + timeout_ms * G_TIME_SPAN_MILLISECOND;
g_cond_wait_until (ctx->transfer_completed_event, ctx->transfer_completed_mtx, end_time);
} else {
g_cond_wait( ctx->transfer_completed_event, ctx->transfer_completed_mtx );
}
g_mutex_unlock( ctx->transfer_completed_mtx );
}
static void
arv_uv_stream_buffer_context_notify_transfer_completed (ArvUvStreamBufferContext* ctx)
{
g_mutex_lock( ctx->transfer_completed_mtx );
g_cond_broadcast( ctx->transfer_completed_event );
g_mutex_unlock( ctx->transfer_completed_mtx );
}
static
void LIBUSB_CALL arv_uv_stream_leader_cb (struct libusb_transfer *transfer)
{
ArvUvStreamBufferContext *ctx = transfer->user_data;
ArvUvspPacket *packet = (ArvUvspPacket*)transfer->buffer;
if (ctx->buffer != NULL) {
if (ctx->is_aborting) {
ctx->buffer->priv->status = ARV_BUFFER_STATUS_ABORTED;
} else {
switch (transfer->status) {
case LIBUSB_TRANSFER_COMPLETED:
arv_uvsp_packet_debug (packet, ARV_DEBUG_LEVEL_DEBUG);
if (arv_uvsp_packet_get_packet_type (packet) != ARV_UVSP_PACKET_TYPE_LEADER) {
arv_warning_stream_thread ("Unexpected packet type (was expecting leader packet)");
ctx->buffer->priv->status = ARV_BUFFER_STATUS_MISSING_PACKETS;
break;
}
ctx->buffer->priv->system_timestamp_ns = g_get_real_time () * 1000LL;
ctx->buffer->priv->payload_type = arv_uvsp_packet_get_buffer_payload_type
(packet, &ctx->buffer->priv->has_chunks);
ctx->buffer->priv->chunk_endianness = G_LITTLE_ENDIAN;
if (ctx->buffer->priv->payload_type == ARV_BUFFER_PAYLOAD_TYPE_IMAGE ||
ctx->buffer->priv->payload_type == ARV_BUFFER_PAYLOAD_TYPE_EXTENDED_CHUNK_DATA) {
arv_buffer_set_n_parts(ctx->buffer, 1);
ctx->buffer->priv->parts[0].data_offset = 0;
ctx->buffer->priv->parts[0].component_id = 0;
ctx->buffer->priv->parts[0].data_type = ARV_BUFFER_PART_DATA_TYPE_2D_IMAGE;
ctx->buffer->priv->parts[0].pixel_format = arv_uvsp_packet_get_pixel_format (packet);
arv_uvsp_packet_get_region (packet,
&ctx->buffer->priv->parts[0].width,
&ctx->buffer->priv->parts[0].height,
&ctx->buffer->priv->parts[0].x_offset,
&ctx->buffer->priv->parts[0].y_offset,
&ctx->buffer->priv->parts[0].x_padding,
&ctx->buffer->priv->parts[0].y_padding);
}
ctx->buffer->priv->frame_id = arv_uvsp_packet_get_frame_id (packet);
ctx->buffer->priv->timestamp_ns = arv_uvsp_packet_get_timestamp (packet);
break;
default:
arv_warning_stream_thread ("Leader transfer failed (%s)",
libusb_error_name (transfer->status));
ctx->buffer->priv->status = ARV_BUFFER_STATUS_MISSING_PACKETS;
break;
}
}
}
g_atomic_int_dec_and_test (&ctx->num_submitted);
g_atomic_int_add (ctx->total_submitted_bytes, -transfer->length);
ctx->statistics->n_transferred_bytes += transfer->length;
arv_uv_stream_buffer_context_notify_transfer_completed (ctx);
}
static
void LIBUSB_CALL arv_uv_stream_payload_cb (struct libusb_transfer *transfer)
{
ArvUvStreamBufferContext *ctx = transfer->user_data;
if (ctx->buffer != NULL) {
if (ctx->is_aborting) {
ctx->buffer->priv->status = ARV_BUFFER_STATUS_ABORTED;
} else {
switch (transfer->status) {
case LIBUSB_TRANSFER_COMPLETED:
ctx->total_payload_transferred += transfer->actual_length;
break;
default:
arv_warning_stream_thread ("Payload transfer failed (%s)",
libusb_error_name (transfer->status));
ctx->buffer->priv->status = ARV_BUFFER_STATUS_MISSING_PACKETS;
break;
}
}
}
g_atomic_int_dec_and_test( &ctx->num_submitted );
g_atomic_int_add (ctx->total_submitted_bytes, -transfer->length);
ctx->statistics->n_transferred_bytes += transfer->length;
arv_uv_stream_buffer_context_notify_transfer_completed (ctx);
}
static
void LIBUSB_CALL arv_uv_stream_trailer_cb (struct libusb_transfer *transfer)
{
ArvUvStreamBufferContext *ctx = transfer->user_data;
ArvUvspPacket *packet = (ArvUvspPacket*)transfer->buffer;
if (ctx->buffer != NULL) {
if (ctx->is_aborting) {
ctx->buffer->priv->status = ARV_BUFFER_STATUS_ABORTED;
ctx->statistics->n_aborted += 1;
} else {
switch (transfer->status) {
case LIBUSB_TRANSFER_COMPLETED:
arv_uvsp_packet_debug (packet, ARV_DEBUG_LEVEL_DEBUG);
if (arv_uvsp_packet_get_packet_type (packet) != ARV_UVSP_PACKET_TYPE_TRAILER) {
arv_warning_stream_thread ("Unexpected packet type (was expecting trailer packet)");
ctx->buffer->priv->status = ARV_BUFFER_STATUS_MISSING_PACKETS;
break;
}
arv_debug_stream_thread ("Total payload: %zu bytes", ctx->total_payload_transferred);
if (ctx->total_payload_transferred != ctx->expected_size) {
arv_warning_stream_thread ("Unexpected total payload size (received %"
G_GSIZE_FORMAT " - expected %" G_GSIZE_FORMAT")",
ctx->total_payload_transferred, ctx->expected_size);
ctx->buffer->priv->status = ARV_BUFFER_STATUS_SIZE_MISMATCH;
break;
}
break;
default:
arv_warning_stream_thread ("Trailer transfer failed (%s)",
libusb_error_name(transfer->status));
ctx->buffer->priv->status = ARV_BUFFER_STATUS_MISSING_PACKETS;
break;
}
switch (ctx->buffer->priv->status) {
case ARV_BUFFER_STATUS_FILLING:
ctx->buffer->priv->status = ARV_BUFFER_STATUS_SUCCESS;
ctx->buffer->priv->received_size = ctx->total_payload_transferred;
ctx->buffer->priv->parts[0].size = ctx->total_payload_transferred;
ctx->statistics->n_completed_buffers += 1;
break;
default:
ctx->statistics->n_failures += 1;
break;
}
}
arv_stream_push_output_buffer (ctx->stream, ctx->buffer);
if (ctx->callback != NULL)
ctx->callback (ctx->callback_data,
ARV_STREAM_CALLBACK_TYPE_BUFFER_DONE,
ctx->buffer);
g_atomic_int_dec_and_test(ctx->n_buffer_in_use);
ctx->buffer = NULL;
}
g_atomic_int_dec_and_test( &ctx->num_submitted );
g_atomic_int_add (ctx->total_submitted_bytes, -transfer->length);
ctx->statistics->n_transferred_bytes += transfer->length;
arv_uv_stream_buffer_context_notify_transfer_completed (ctx);
}
static ArvUvStreamBufferContext*
arv_uv_stream_buffer_context_new (ArvBuffer *buffer, ArvUvStreamThreadData *thread_data, gint *total_submitted_bytes)
{
ArvUvStreamBufferContext* ctx = g_malloc0 (sizeof(ArvUvStreamBufferContext));
int i;
size_t offset = 0;
ctx->buffer = NULL;
ctx->stream = thread_data->stream;
ctx->callback = thread_data->callback;
ctx->callback_data = thread_data->callback_data;
ctx->transfer_completed_mtx = &thread_data->stream_mtx;
ctx->transfer_completed_event = &thread_data->stream_event;
ctx->n_buffer_in_use = &thread_data->n_buffer_in_use;
ctx->leader_buffer = g_malloc (thread_data->leader_size);
ctx->leader_transfer = libusb_alloc_transfer (0);
arv_uv_device_fill_bulk_transfer (ctx->leader_transfer, thread_data->uv_device,
ARV_UV_ENDPOINT_DATA, LIBUSB_ENDPOINT_IN,
ctx->leader_buffer, thread_data->leader_size,
arv_uv_stream_leader_cb, ctx,
0);
ctx->num_payload_transfers = (buffer->priv->allocated_size - 1) / thread_data->payload_size + 1;
ctx->payload_transfers = g_malloc (ctx->num_payload_transfers * sizeof(struct libusb_transfer*));
for (i = 0; i < ctx->num_payload_transfers; ++i) {
size_t size = MIN (thread_data->payload_size, buffer->priv->allocated_size - offset);
ctx->payload_transfers[i] = libusb_alloc_transfer(0);
arv_uv_device_fill_bulk_transfer (ctx->payload_transfers[i], thread_data->uv_device,
ARV_UV_ENDPOINT_DATA, LIBUSB_ENDPOINT_IN,
buffer->priv->data + offset, size,
arv_uv_stream_payload_cb, ctx,
0);
offset += size;
}
ctx->trailer_buffer = g_malloc (thread_data->trailer_size);
ctx->trailer_transfer = libusb_alloc_transfer (0);
arv_uv_device_fill_bulk_transfer (ctx->trailer_transfer, thread_data->uv_device,
ARV_UV_ENDPOINT_DATA, LIBUSB_ENDPOINT_IN,
ctx->trailer_buffer, thread_data->trailer_size,
arv_uv_stream_trailer_cb, ctx,
0);
ctx->num_submitted = 0;
ctx->total_submitted_bytes = total_submitted_bytes;
ctx->statistics = &thread_data->statistics;
return ctx;
}
static void
arv_uv_stream_buffer_context_free (gpointer data)
{
ArvUvStreamBufferContext* ctx = data;
int i;
g_return_if_fail (ctx->num_submitted == 0);
libusb_free_transfer (ctx->leader_transfer);
for (i = 0; i < ctx->num_payload_transfers; ++i) {
libusb_free_transfer (ctx->payload_transfers[i]);
}
libusb_free_transfer (ctx->trailer_transfer );
g_free (ctx->leader_buffer);
g_free (ctx->payload_transfers);
g_free (ctx->trailer_buffer);
if (ctx->buffer != NULL) {
ctx->buffer->priv->status = ARV_BUFFER_STATUS_ABORTED;
arv_stream_push_output_buffer (ctx->stream, ctx->buffer);
if (ctx->callback != NULL)
ctx->callback (ctx->callback_data,
ARV_STREAM_CALLBACK_TYPE_BUFFER_DONE,
ctx->buffer);
g_atomic_int_dec_and_test(ctx->n_buffer_in_use);
ctx->buffer = NULL;
}
g_free (ctx);
}
static void
_submit_transfer (ArvUvStreamBufferContext* ctx, struct libusb_transfer* transfer, gboolean* cancel)
{
while (!g_atomic_int_get (cancel) &&
((g_atomic_int_get(ctx->total_submitted_bytes) + transfer->length) > ARV_UV_STREAM_MAXIMUM_SUBMIT_TOTAL)) {
arv_uv_stream_buffer_context_wait_transfer_completed (ctx, ARV_UV_STREAM_TRANSFER_WAIT_TIMEOUT_MS);
}
while (!g_atomic_int_get (cancel)) {
int status = libusb_submit_transfer (transfer);
switch (status)
{
case LIBUSB_SUCCESS:
g_atomic_int_inc (&ctx->num_submitted);
g_atomic_int_add (ctx->total_submitted_bytes, transfer->length);
return;
case LIBUSB_ERROR_IO:
/*
* arv_debug_stream_thread ("libusb_submit_transfer failed (%d)", status);
*
* The kernel USB memory buffer limit has been reached (default 16MBytes)
*
* In order to allow more memory to be used for submitted buffers, increase usbfs_memory_mb:
* sudo modprobe usbcore usbfs_memory_mb=1000
*/
arv_uv_stream_buffer_context_wait_transfer_completed (ctx, ARV_UV_STREAM_TRANSFER_WAIT_TIMEOUT_MS);
break;
default:
arv_warning_stream_thread ("libusb_submit_transfer failed (%d)", status);
return;
}
}
}
static void
arv_uv_stream_buffer_context_submit (ArvUvStreamBufferContext* ctx, ArvBuffer *buffer, ArvUvStreamThreadData *thread_data)
{
int i;
if (ctx->callback != NULL)
ctx->callback (ctx->callback_data,
ARV_STREAM_CALLBACK_TYPE_START_BUFFER,
buffer);
ctx->buffer = buffer;
ctx->total_payload_transferred = 0;
buffer->priv->status = ARV_BUFFER_STATUS_FILLING;
ctx->expected_size = thread_data->expected_size;
_submit_transfer (ctx, ctx->leader_transfer, &thread_data->cancel);
for (i = 0; i < ctx->num_payload_transfers; ++i) {
_submit_transfer (ctx, ctx->payload_transfers[i], &thread_data->cancel);
}
_submit_transfer (ctx, ctx->trailer_transfer, &thread_data->cancel);
}
static void
arv_uv_stream_buffer_context_cancel (gpointer key, gpointer value, gpointer user_data)
{
ArvUvStreamBufferContext* ctx = value;
int i;
ctx->is_aborting = TRUE;
libusb_cancel_transfer (ctx->leader_transfer );
for (i = 0; i < ctx->num_payload_transfers; ++i) {
libusb_cancel_transfer (ctx->payload_transfers[i]);
}
libusb_cancel_transfer (ctx->trailer_transfer);
while (ctx->num_submitted > 0)
{
arv_uv_stream_buffer_context_wait_transfer_completed (ctx, ARV_UV_STREAM_TRANSFER_WAIT_TIMEOUT_MS);
}
}
static void *
arv_uv_stream_thread_async (void *data)
{
ArvUvStreamThreadData *thread_data = data;
ArvBuffer *buffer = NULL;
GHashTable *ctx_lookup;
gint total_submitted_bytes = 0;
arv_info_stream_thread ("Start async USB3Vision stream thread");
arv_debug_stream_thread ("leader_size = %zu", thread_data->leader_size );
arv_debug_stream_thread ("payload_size = %zu", thread_data->payload_size );
arv_debug_stream_thread ("trailer_size = %zu", thread_data->trailer_size );
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data, ARV_STREAM_CALLBACK_TYPE_INIT, NULL);
ctx_lookup = g_hash_table_new_full( g_direct_hash, g_direct_equal, NULL, arv_uv_stream_buffer_context_free );
g_mutex_lock (&thread_data->thread_started_mutex);
thread_data->thread_started = TRUE;
g_cond_signal (&thread_data->thread_started_cond);
g_mutex_unlock (&thread_data->thread_started_mutex);
while (!g_atomic_int_get (&thread_data->cancel) &&
arv_uv_device_is_connected (thread_data->uv_device)) {
ArvUvStreamBufferContext* ctx;
buffer = arv_stream_timeout_pop_input_buffer (thread_data->stream,
ARV_UV_STREAM_POP_INPUT_BUFFER_TIMEOUT_MS * 1000);
if( buffer == NULL ) {
if (thread_data->n_buffer_in_use == 0)
thread_data->statistics.n_underruns += 1;
/* NOTE: n_ignored_bytes is not accumulated because it doesn't submit next USB transfer if
* buffer is shortage. It means back pressure might be hanlded by USB slave side. */
continue;
} else {
g_atomic_int_inc(&thread_data->n_buffer_in_use);
}
ctx = g_hash_table_lookup( ctx_lookup, buffer );
if (!ctx) {
arv_debug_stream_thread ("Stream buffer context not found for buffer %p, creating...", buffer);
ctx = arv_uv_stream_buffer_context_new (buffer, thread_data, &total_submitted_bytes);
g_hash_table_insert (ctx_lookup, buffer, ctx);
}
arv_uv_stream_buffer_context_submit (ctx, buffer, thread_data);
}
g_hash_table_foreach (ctx_lookup, arv_uv_stream_buffer_context_cancel, NULL);
g_hash_table_destroy (ctx_lookup);
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data, ARV_STREAM_CALLBACK_TYPE_EXIT, NULL);
arv_info_stream_thread ("Stop USB3Vision async stream thread");
return NULL;
}
static void *
arv_uv_stream_thread_sync (void *data)
{
ArvUvStreamThreadData *thread_data = data;
ArvUvspPacket *packet;
ArvBuffer *buffer = NULL;
void *incoming_buffer;
guint64 offset;
size_t transferred;
arv_info_stream_thread ("Start sync USB3Vision stream thread");
incoming_buffer = g_malloc (ARV_UV_STREAM_MAXIMUM_TRANSFER_SIZE);
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data, ARV_STREAM_CALLBACK_TYPE_INIT, NULL);
offset = 0;
g_mutex_lock (&thread_data->thread_started_mutex);
thread_data->thread_started = TRUE;
g_cond_signal (&thread_data->thread_started_cond);
g_mutex_unlock (&thread_data->thread_started_mutex);
while (!g_atomic_int_get (&thread_data->cancel)) {
GError *error = NULL;
size_t size;
transferred = 0;
if (buffer == NULL)
size = ARV_UV_STREAM_MAXIMUM_TRANSFER_SIZE;
else {
if (offset < buffer->priv->allocated_size)
size = MIN (thread_data->payload_size, buffer->priv->allocated_size - offset);
else
size = thread_data->trailer_size;
}
/* Avoid unnecessary memory copy by transferring data directly to the image buffer */
if (buffer != NULL &&
buffer->priv->status == ARV_BUFFER_STATUS_FILLING &&
offset + size <= buffer->priv->allocated_size)
packet = (ArvUvspPacket *) (buffer->priv->data + offset);
else
packet = incoming_buffer;
arv_debug_sp ("Asking for %" G_GSIZE_FORMAT " bytes", size);
arv_uv_device_bulk_transfer (thread_data->uv_device, ARV_UV_ENDPOINT_DATA, LIBUSB_ENDPOINT_IN,
packet, size, &transferred, 0, &error);
if (error != NULL) {
arv_warning_sp ("USB transfer error: %s", error->message);
g_clear_error (&error);
} else if (transferred < 1) {
arv_warning_sp ("No data transferred");
} else {
ArvUvspPacketType packet_type;
arv_debug_sp ("Received %" G_GSIZE_FORMAT " bytes", transferred);
arv_uvsp_packet_debug (packet, ARV_DEBUG_LEVEL_DEBUG);
packet_type = arv_uvsp_packet_get_packet_type (packet);
switch (packet_type) {
case ARV_UVSP_PACKET_TYPE_LEADER:
if (buffer != NULL) {
arv_info_stream_thread ("New leader received while a buffer is still open");
buffer->priv->status = ARV_BUFFER_STATUS_MISSING_PACKETS;
arv_stream_push_output_buffer (thread_data->stream, buffer);
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data,
ARV_STREAM_CALLBACK_TYPE_BUFFER_DONE,
buffer);
thread_data->statistics.n_failures++;
g_atomic_int_dec_and_test(&thread_data->n_buffer_in_use);
buffer = NULL;
}
buffer = arv_stream_pop_input_buffer (thread_data->stream);
if (buffer != NULL) {
g_atomic_int_inc(&thread_data->n_buffer_in_use);
buffer->priv->system_timestamp_ns = g_get_real_time () * 1000LL;
buffer->priv->status = ARV_BUFFER_STATUS_FILLING;
buffer->priv->received_size = 0;
buffer->priv->payload_type = arv_uvsp_packet_get_buffer_payload_type
(packet, &buffer->priv->has_chunks);
buffer->priv->chunk_endianness = G_LITTLE_ENDIAN;
if (buffer->priv->payload_type == ARV_BUFFER_PAYLOAD_TYPE_IMAGE ||
buffer->priv->payload_type == ARV_BUFFER_PAYLOAD_TYPE_EXTENDED_CHUNK_DATA) {
arv_buffer_set_n_parts(buffer, 1);
buffer->priv->parts[0].data_offset = 0;
buffer->priv->parts[0].component_id = 0;
buffer->priv->parts[0].data_type =
ARV_BUFFER_PART_DATA_TYPE_2D_IMAGE;
buffer->priv->parts[0].pixel_format =
arv_uvsp_packet_get_pixel_format (packet);
arv_uvsp_packet_get_region (packet,
&buffer->priv->parts[0].width,
&buffer->priv->parts[0].height,
&buffer->priv->parts[0].x_offset,
&buffer->priv->parts[0].y_offset,
&buffer->priv->parts[0].x_padding,
&buffer->priv->parts[0].y_padding);
}
buffer->priv->frame_id = arv_uvsp_packet_get_frame_id (packet);
buffer->priv->timestamp_ns = arv_uvsp_packet_get_timestamp (packet);
offset = 0;
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data,
ARV_STREAM_CALLBACK_TYPE_START_BUFFER,
NULL);
thread_data->statistics.n_transferred_bytes += transferred;
} else {
thread_data->statistics.n_underruns++;
thread_data->statistics.n_ignored_bytes += transferred;
}
break;
case ARV_UVSP_PACKET_TYPE_TRAILER:
if (buffer != NULL) {
arv_debug_stream_thread ("Received %" G_GUINT64_FORMAT " bytes",
offset);
if (offset != thread_data->expected_size) {
arv_info_stream_thread ("Incomplete image received, dropping "
"(received %" G_GUINT64_FORMAT
" / expected %" G_GSIZE_FORMAT ")",
offset, thread_data->expected_size);
buffer->priv->status = ARV_BUFFER_STATUS_SIZE_MISMATCH;
arv_stream_push_output_buffer (thread_data->stream, buffer);
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data,
ARV_STREAM_CALLBACK_TYPE_BUFFER_DONE,
buffer);
thread_data->statistics.n_failures++;
thread_data->statistics.n_ignored_bytes += transferred;
g_atomic_int_dec_and_test(&thread_data->n_buffer_in_use);
buffer = NULL;
} else {
buffer->priv->status = ARV_BUFFER_STATUS_SUCCESS;
buffer->priv->received_size = offset;
buffer->priv->parts[0].size = offset;
arv_stream_push_output_buffer (thread_data->stream, buffer);
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data,
ARV_STREAM_CALLBACK_TYPE_BUFFER_DONE,
buffer);
thread_data->statistics.n_completed_buffers++;
thread_data->statistics.n_transferred_bytes += transferred;
g_atomic_int_dec_and_test(&thread_data->n_buffer_in_use);
buffer = NULL;
}
}
break;
case ARV_UVSP_PACKET_TYPE_DATA:
if (buffer != NULL && buffer->priv->status == ARV_BUFFER_STATUS_FILLING) {
if (offset + transferred <= buffer->priv->allocated_size) {
if (packet == incoming_buffer)
memcpy (((char *) buffer->priv->data) + offset,
packet, transferred);
offset += transferred;
thread_data->statistics.n_transferred_bytes += transferred;
} else {
buffer->priv->status = ARV_BUFFER_STATUS_SIZE_MISMATCH;
thread_data->statistics.n_ignored_bytes += transferred;
}
} else {
thread_data->statistics.n_ignored_bytes += transferred;
}
break;
default:
arv_info_stream_thread ("Unknown packet type");
break;
}
}
}
if (buffer != NULL) {
buffer->priv->status = ARV_BUFFER_STATUS_ABORTED;
thread_data->statistics.n_aborted++;
arv_stream_push_output_buffer (thread_data->stream, buffer);
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data,
ARV_STREAM_CALLBACK_TYPE_BUFFER_DONE,
buffer);
g_atomic_int_dec_and_test(&thread_data->n_buffer_in_use);
}
if (thread_data->callback != NULL)
thread_data->callback (thread_data->callback_data, ARV_STREAM_CALLBACK_TYPE_EXIT, NULL);
g_free (incoming_buffer);
arv_info_stream_thread ("Stop USB3Vision sync stream thread");
return NULL;
}
/* ArvUvStream implementation */
static guint32
align (guint32 val, guint32 alignment)
{
/* Alignment must be a power of two, otherwise the used alignment algorithm does not work. */
g_assert (alignment > 0 && (alignment & (alignment - 1)) == 0);
return (val + (alignment - 1)) & ~(alignment - 1);
}
static void
arv_uv_stream_start_thread (ArvStream *stream)
{
ArvUvStream *uv_stream = ARV_UV_STREAM (stream);
ArvUvStreamPrivate *priv = arv_uv_stream_get_instance_private (uv_stream);
ArvUvStreamThreadData *thread_data;
ArvDevice *device;
GError *error = NULL;
guint64 sbrm_address;
guint32 si_info;
guint64 si_req_payload_size;
guint32 si_req_leader_size;
guint32 si_req_trailer_size;
guint32 si_payload_size;
guint32 si_payload_count;
guint32 si_transfer1_size;
guint32 si_transfer2_size;
guint32 si_leader_size;
guint32 si_trailer_size;
guint32 si_control;
guint32 alignment;
guint32 aligned_maximum_transfer_size;
g_return_if_fail (priv->thread == NULL);
g_return_if_fail (priv->thread_data != NULL);
thread_data = priv->thread_data;
device = ARV_DEVICE (thread_data->uv_device);
arv_device_read_memory (device, ARV_ABRM_SBRM_ADDRESS,
sizeof (guint64), &sbrm_address, NULL);
arv_device_read_memory (device, sbrm_address + ARV_SBRM_SIRM_ADDRESS,
sizeof (guint64), &priv->sirm_address, NULL);
arv_device_read_memory (device, priv->sirm_address + ARV_SIRM_INFO,
sizeof (si_info), &si_info, NULL);
arv_device_read_memory (device, priv->sirm_address + ARV_SIRM_REQ_PAYLOAD_SIZE,
sizeof (si_req_payload_size), &si_req_payload_size, NULL);
arv_device_read_memory (device, priv->sirm_address + ARV_SIRM_REQ_LEADER_SIZE,
sizeof (si_req_leader_size), &si_req_leader_size, NULL);
arv_device_read_memory (device, priv->sirm_address + ARV_SIRM_REQ_TRAILER_SIZE,
sizeof (si_req_trailer_size), &si_req_trailer_size, NULL);
alignment = 1 << ((si_info & ARV_SIRM_INFO_ALIGNMENT_MASK) >> ARV_SIRM_INFO_ALIGNMENT_SHIFT);
arv_info_stream ("SIRM_INFO = 0x%08x", si_info);
arv_info_stream ("SIRM_REQ_PAYLOAD_SIZE = 0x%016" G_GINT64_MODIFIER "x", si_req_payload_size);
arv_info_stream ("SIRM_REQ_LEADER_SIZE = 0x%08x", si_req_leader_size);
arv_info_stream ("SIRM_REQ_TRAILER_SIZE = 0x%08x", si_req_trailer_size);
arv_info_stream ("Required alignment = %d", alignment);
aligned_maximum_transfer_size = ARV_UV_STREAM_MAXIMUM_TRANSFER_SIZE / alignment * alignment;
if (si_req_leader_size < 1) {
arv_warning_stream ("Wrong SI_REQ_LEADER_SIZE value, using %d instead", aligned_maximum_transfer_size);
si_leader_size = aligned_maximum_transfer_size;
} else {
si_leader_size = align (si_req_leader_size, alignment);
}
if (si_req_trailer_size < 1) {
arv_warning_stream ("Wrong SI_REQ_TRAILER_SIZE value, using %d instead", aligned_maximum_transfer_size);
si_trailer_size = aligned_maximum_transfer_size;
} else {
si_trailer_size = align (si_req_trailer_size, alignment);
}
si_payload_size = MIN(si_req_payload_size , aligned_maximum_transfer_size);
si_payload_count= si_req_payload_size / si_payload_size;
si_transfer1_size = align(si_req_payload_size % si_payload_size, alignment);
si_transfer2_size = 0;
arv_device_write_memory (device, priv->sirm_address + ARV_SIRM_MAX_LEADER_SIZE,
sizeof (si_leader_size), &si_leader_size, NULL);
arv_device_write_memory (device, priv->sirm_address + ARV_SIRM_MAX_TRAILER_SIZE,
sizeof (si_trailer_size), &si_trailer_size, NULL);
arv_device_write_memory (device, priv->sirm_address + ARV_SIRM_PAYLOAD_SIZE,
sizeof (si_payload_size), &si_payload_size, NULL);
arv_device_write_memory (device, priv->sirm_address + ARV_SIRM_PAYLOAD_COUNT,
sizeof (si_payload_count), &si_payload_count, NULL);
arv_device_write_memory (device, priv->sirm_address + ARV_SIRM_TRANSFER1_SIZE,
sizeof (si_transfer1_size), &si_transfer1_size, NULL);
arv_device_write_memory (device, priv->sirm_address + ARV_SIRM_TRANSFER2_SIZE,
sizeof (si_transfer2_size), &si_transfer2_size, NULL);
arv_info_stream ("SIRM_PAYLOAD_SIZE = 0x%08x", si_payload_size);
arv_info_stream ("SIRM_PAYLOAD_COUNT = 0x%08x", si_payload_count);
arv_info_stream ("SIRM_TRANSFER1_SIZE = 0x%08x", si_transfer1_size);
arv_info_stream ("SIRM_TRANSFER2_SIZE = 0x%08x", si_transfer2_size);
arv_info_stream ("SIRM_MAX_LEADER_SIZE = 0x%08x", si_leader_size);
arv_info_stream ("SIRM_MAX_TRAILER_SIZE = 0x%08x", si_trailer_size);
thread_data->expected_size = si_req_payload_size;
thread_data->leader_size = si_leader_size;
thread_data->payload_size = si_payload_size;
thread_data->payload_count = si_payload_count;
thread_data->transfer1_size = si_transfer1_size;
thread_data->trailer_size = si_trailer_size;
thread_data->n_buffer_in_use = 0;
thread_data->cancel = FALSE;
switch (priv->usb_mode) {
case ARV_UV_USB_MODE_SYNC:
priv->thread = g_thread_new ("arv_uv_stream", arv_uv_stream_thread_sync, priv->thread_data);
break;
case ARV_UV_USB_MODE_ASYNC:
priv->thread = g_thread_new ("arv_uv_stream", arv_uv_stream_thread_async, priv->thread_data);
break;
default:
g_assert_not_reached ();
}
g_mutex_lock (&thread_data->thread_started_mutex);
while (!thread_data->thread_started)
g_cond_wait (&thread_data->thread_started_cond,
&thread_data->thread_started_mutex);
g_mutex_unlock (&thread_data->thread_started_mutex);
arv_uv_device_reset_stream_endpoint (thread_data->uv_device);
si_control = ARV_SIRM_CONTROL_STREAM_ENABLE;
arv_device_write_memory (device, priv->sirm_address + ARV_SIRM_CONTROL, sizeof (si_control), &si_control, &error);
if (error != NULL) {
arv_warning_stream ("Failed to enable stream (%s)",
error->message);
g_clear_error(&error);
}
}
static void
arv_uv_stream_stop_thread (ArvStream *stream)
{
ArvUvStream *uv_stream = ARV_UV_STREAM (stream);
ArvUvStreamPrivate *priv = arv_uv_stream_get_instance_private (uv_stream);
ArvUvStreamThreadData *thread_data;
guint32 si_control;
GError *error = NULL;
g_return_if_fail (priv->thread != NULL);
g_return_if_fail (priv->thread_data != NULL);
thread_data = priv->thread_data;
g_atomic_int_set (&priv->thread_data->cancel, TRUE);
g_cond_broadcast (&priv->thread_data->stream_event);
g_thread_join (priv->thread);
priv->thread = NULL;
si_control = 0x0;
arv_device_write_memory (ARV_DEVICE (thread_data->uv_device),
priv->sirm_address + ARV_SIRM_CONTROL, sizeof (si_control), &si_control, &error);
if (error != NULL) {
arv_warning_stream ("Failed to disable stream (%s)",
error->message);
g_clear_error(&error);
}
}
/**
* arv_uv_stream_new: (skip)
* @uv_device: a #ArvUvDevice
* @callback: (scope call): image processing callback
* @callback_data: (closure): user data for @callback
* @error: a #GError placeholder, %NULL to ignore
*
* Return Value: (transfer full): a new #ArvStream.
*/
ArvStream *
arv_uv_stream_new (ArvUvDevice *uv_device, ArvStreamCallback callback, void *callback_data, GDestroyNotify destroy,
ArvUvUsbMode usb_mode, GError **error)
{
return g_initable_new (ARV_TYPE_UV_STREAM, NULL, error,
"device", uv_device,
"callback", callback,
"callback-data", callback_data,
"destroy-notify", destroy,
"usb-mode", usb_mode,
NULL);
}
static void
arv_uv_stream_constructed (GObject *object)
{
ArvUvStream *uv_stream = ARV_UV_STREAM (object);
ArvStream *stream = ARV_STREAM (uv_stream);
ArvUvStreamPrivate *priv = arv_uv_stream_get_instance_private (uv_stream);
ArvUvStreamThreadData *thread_data;
G_OBJECT_CLASS (arv_uv_stream_parent_class)->constructed (object);
thread_data = g_new0 (ArvUvStreamThreadData, 1);
thread_data->stream = stream;
g_cond_init( &thread_data->stream_event );
g_mutex_init( &thread_data->stream_mtx );
thread_data->statistics.n_completed_buffers = 0;
thread_data->statistics.n_failures = 0;
thread_data->statistics.n_underruns = 0;
thread_data->statistics.n_aborted = 0;
thread_data->statistics.n_transferred_bytes = 0;
thread_data->statistics.n_ignored_bytes = 0;
g_object_get (object,
"device", &thread_data->uv_device,
"callback", &thread_data->callback,
"callback-data", &thread_data->callback_data,
NULL);
priv->thread_data = thread_data;
arv_stream_declare_info (ARV_STREAM (uv_stream), "n_completed_buffers",
G_TYPE_UINT64, &thread_data->statistics.n_completed_buffers);
arv_stream_declare_info (ARV_STREAM (uv_stream), "n_failures",
G_TYPE_UINT64, &thread_data->statistics.n_failures);
arv_stream_declare_info (ARV_STREAM (uv_stream), "n_underruns",
G_TYPE_UINT64, &thread_data->statistics.n_underruns);
arv_stream_declare_info (ARV_STREAM (uv_stream), "n_aborted",
G_TYPE_UINT64, &thread_data->statistics.n_aborted);
arv_stream_declare_info (ARV_STREAM (uv_stream), "n_transferred_bytes",
G_TYPE_UINT64, &thread_data->statistics.n_transferred_bytes);
arv_stream_declare_info (ARV_STREAM (uv_stream), "n_ignored_bytes",
G_TYPE_UINT64, &thread_data->statistics.n_ignored_bytes);
arv_uv_stream_start_thread (ARV_STREAM (uv_stream));
}
/* ArvStream implementation */
static void
arv_uv_stream_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
ArvUvStreamPrivate *priv = arv_uv_stream_get_instance_private (ARV_UV_STREAM (object));
switch (prop_id) {
case ARV_UV_STREAM_PROPERTY_USB_MODE:
priv->usb_mode = g_value_get_enum(value);
break;