/*
* Copyright (C) 2011-2013 Karlsruhe Institute of Technology
*
* This file is part of Ufo.
*
* 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 3 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, see .
*/
#include "config.h"
#ifdef WITH_PYTHON
#include
#endif
#ifdef __APPLE__
#include
#else
#include
#endif
#include
#include
/**
* SECTION:ufo-output-task
* @Short_description: Output task
* @Title: UfoOutputTask
*/
struct _UfoOutputTaskPrivate {
GAsyncQueue *out_queue;
GAsyncQueue *in_queue;
guint n_dims;
guint n_copies;
GList *copies;
};
static void ufo_task_interface_init (UfoTaskIface *iface);
G_DEFINE_TYPE_WITH_CODE (UfoOutputTask, ufo_output_task, UFO_TYPE_TASK_NODE,
G_IMPLEMENT_INTERFACE (UFO_TYPE_TASK,
ufo_task_interface_init))
#define UFO_OUTPUT_TASK_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UFO_TYPE_OUTPUT_TASK, UfoOutputTaskPrivate))
enum {
PROP_0,
PROP_NUM_DIMS,
N_PROPERTIES
};
static GParamSpec *properties[N_PROPERTIES] = { NULL, };
UfoNode *
ufo_output_task_new (guint n_dims)
{
UfoOutputTask *task = UFO_OUTPUT_TASK (g_object_new (UFO_TYPE_OUTPUT_TASK, NULL));
task->priv->n_dims = n_dims;
return UFO_NODE (task);
}
void
ufo_output_task_get_output_requisition (UfoOutputTask *task,
UfoRequisition *requisition)
{
UfoBuffer *buffer;
UfoOutputTaskPrivate *priv;
g_return_if_fail (UFO_IS_OUTPUT_TASK (task));
priv = task->priv;
buffer = g_async_queue_pop (priv->out_queue);
ufo_buffer_get_requisition (buffer, requisition);
g_async_queue_push (priv->out_queue, buffer);
}
/**
* ufo_output_task_get_output_buffer:
* @task: A #UfoInputTask
*
* Get the output buffer from which we read the data to be sent to the master
* remote node.
*
* Return value: (transfer none): A #UfoBuffer for reading output data.
*/
UfoBuffer *
ufo_output_task_get_output_buffer (UfoOutputTask *task)
{
UfoBuffer *buffer;
g_return_val_if_fail (UFO_IS_OUTPUT_TASK (task), NULL);
#ifdef WITH_PYTHON
if (Py_IsInitialized ()) {
PyGILState_STATE state = PyGILState_Ensure ();
Py_BEGIN_ALLOW_THREADS
buffer = g_async_queue_pop (task->priv->out_queue);
Py_END_ALLOW_THREADS
PyGILState_Release (state);
}
else {
buffer = g_async_queue_pop (task->priv->out_queue);
}
#else
buffer = g_async_queue_pop (task->priv->out_queue);
#endif
return buffer;
}
void
ufo_output_task_release_output_buffer (UfoOutputTask *task,
UfoBuffer *buffer)
{
g_return_if_fail (UFO_IS_OUTPUT_TASK (task));
g_async_queue_push (task->priv->in_queue, buffer);
}
static void
ufo_output_task_setup (UfoTask *task,
UfoResources *resources,
GError **error)
{
}
static void
ufo_output_task_get_requisition (UfoTask *task,
UfoBuffer **inputs,
UfoRequisition *requisition)
{
(*requisition).n_dims = 0;
}
static guint
ufo_output_task_get_num_inputs (UfoTask *task)
{
return 1;
}
static guint
ufo_output_task_get_num_dimensions (UfoTask *task,
guint input)
{
g_return_val_if_fail (input == 0, 0);
return UFO_OUTPUT_TASK_GET_PRIVATE (task)->n_dims;
}
static UfoTaskMode
ufo_output_task_get_mode (UfoTask *task)
{
return UFO_TASK_MODE_SINK | UFO_TASK_MODE_CPU;
}
static gboolean
ufo_output_task_process (UfoTask *task,
UfoBuffer **outputs,
UfoBuffer *output,
UfoRequisition *requisition)
{
UfoOutputTaskPrivate *priv;
UfoRequisition req;
UfoBuffer *copy;
g_return_val_if_fail (UFO_IS_OUTPUT_TASK (task), FALSE);
ufo_buffer_get_requisition (outputs[0], &req);
priv = UFO_OUTPUT_TASK_GET_PRIVATE (task);
if (priv->n_copies == 0) {
copy = ufo_buffer_dup (outputs[0]);
priv->copies = g_list_append (priv->copies, copy);
priv->n_copies++;
}
else {
copy = g_async_queue_pop (priv->in_queue);
}
ufo_buffer_copy (outputs[0], copy);
g_async_queue_push (priv->out_queue, copy);
return TRUE;
}
static void
ufo_output_task_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
{
UfoOutputTaskPrivate *priv;
priv = UFO_OUTPUT_TASK_GET_PRIVATE (object);
switch (property_id) {
case PROP_NUM_DIMS:
priv->n_dims = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
ufo_output_task_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
{
switch (property_id) {
case PROP_NUM_DIMS:
g_value_set_uint (value, UFO_OUTPUT_TASK_GET_PRIVATE (object)->n_dims);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
ufo_output_task_dispose (GObject *object)
{
UfoOutputTaskPrivate *priv;
priv = UFO_OUTPUT_TASK_GET_PRIVATE (object);
g_list_foreach (priv->copies, (GFunc) g_object_unref, NULL);
G_OBJECT_CLASS (ufo_output_task_parent_class)->dispose (object);
}
static void
ufo_output_task_finalize (GObject *object)
{
UfoOutputTaskPrivate *priv;
priv = UFO_OUTPUT_TASK_GET_PRIVATE (object);
g_list_free (priv->copies);
priv->copies = NULL;
G_OBJECT_CLASS (ufo_output_task_parent_class)->finalize (object);
}
static void
ufo_task_interface_init (UfoTaskIface *iface)
{
iface->setup = ufo_output_task_setup;
iface->get_num_inputs = ufo_output_task_get_num_inputs;
iface->get_num_dimensions = ufo_output_task_get_num_dimensions;
iface->get_mode = ufo_output_task_get_mode;
iface->get_requisition = ufo_output_task_get_requisition;
iface->process = ufo_output_task_process;
}
static void
ufo_output_task_class_init (UfoOutputTaskClass *klass)
{
GObjectClass *oclass = G_OBJECT_CLASS (klass);
oclass->set_property = ufo_output_task_set_property;
oclass->get_property = ufo_output_task_get_property;
oclass->dispose = ufo_output_task_dispose;
oclass->finalize = ufo_output_task_finalize;
properties[PROP_NUM_DIMS] =
g_param_spec_uint ("num-dims",
"Number of expected dimensions",
"Number of expected dimensions",
1, 3, 2, G_PARAM_READWRITE);
g_object_class_install_property (oclass, PROP_NUM_DIMS, properties[PROP_NUM_DIMS]);
g_type_class_add_private (oclass, sizeof(UfoOutputTaskPrivate));
}
static void
ufo_output_task_init (UfoOutputTask *task)
{
task->priv = UFO_OUTPUT_TASK_GET_PRIVATE (task);
task->priv->out_queue = g_async_queue_new ();
task->priv->in_queue = g_async_queue_new ();
task->priv->n_copies = 0;
task->priv->copies = NULL;
task->priv->n_dims = 2;
ufo_task_node_set_plugin_name (UFO_TASK_NODE (task), "output-task");
}