gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/d3d12/gstd3d12fencedatapool.cpp

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/* GStreamer
* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d12fencedatapool.h"
#include <gst/base/gstqueuearray.h>
#include <mutex>
#include <queue>
GST_DEBUG_CATEGORY_STATIC (gst_d3d12_fence_data_pool_debug);
#define GST_CAT_DEFAULT gst_d3d12_fence_data_pool_debug
struct NotifyData
{
gpointer user_data = nullptr;
GDestroyNotify notify = nullptr;
};
static void
notify_data_clear_func (NotifyData * data)
{
if (data->notify)
data->notify (data->user_data);
data->user_data = nullptr;
data->notify = nullptr;
}
/* *INDENT-OFF* */
struct _GstD3D12FenceData : public GstMiniObject
{
_GstD3D12FenceData ()
{
queue = gst_vec_deque_new_for_struct (sizeof (NotifyData), 4);
gst_vec_deque_set_clear_func (queue,
(GDestroyNotify) notify_data_clear_func);
}
~_GstD3D12FenceData ()
{
gst_vec_deque_free (queue);
}
GstD3D12FenceDataPool *pool = nullptr;
GstVecDeque *queue;
};
GST_DEFINE_MINI_OBJECT_TYPE (GstD3D12FenceData, gst_d3d12_fence_data);
struct _GstD3D12FenceDataPoolPrivate
{
~_GstD3D12FenceDataPoolPrivate ()
{
while (!data_pool.empty ()) {
auto data = data_pool.front ();
data_pool.pop ();
gst_mini_object_unref (data);
}
}
std::mutex lock;
std::queue<GstD3D12FenceData *>data_pool;
};
/* *INDENT-ON* */
static void gst_d3d12_fence_data_pool_finalize (GObject * object);
#define gst_d3d12_fence_data_pool_parent_class parent_class
G_DEFINE_TYPE (GstD3D12FenceDataPool,
gst_d3d12_fence_data_pool, GST_TYPE_OBJECT);
static void
gst_d3d12_fence_data_pool_class_init (GstD3D12FenceDataPoolClass * klass)
{
auto object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gst_d3d12_fence_data_pool_finalize;
GST_DEBUG_CATEGORY_INIT (gst_d3d12_fence_data_pool_debug,
"d3d12fencedatapool", 0, "d3d12fencedatapool");
}
static void
gst_d3d12_fence_data_pool_init (GstD3D12FenceDataPool * self)
{
self->priv = new GstD3D12FenceDataPoolPrivate ();
}
static void
gst_d3d12_fence_data_pool_finalize (GObject * object)
{
auto self = GST_D3D12_FENCE_DATA_POOL (object);
delete self->priv;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* gst_d3d12_fence_data_pool_new:
*
* Creates #GstD3D12FenceDataPool instance
*
* Returns: (transfer full): a #GstD3D12FenceDataPool instance
*
* Since: 1.26
*/
GstD3D12FenceDataPool *
gst_d3d12_fence_data_pool_new (void)
{
auto self = (GstD3D12FenceDataPool *)
g_object_new (GST_TYPE_D3D12_FENCE_DATA_POOL, nullptr);
gst_object_ref_sink (self);
return self;
}
static void
gst_d3d12_fence_data_pool_release (GstD3D12FenceDataPool * pool,
GstD3D12FenceData * data)
{
auto priv = pool->priv;
gst_vec_deque_clear (data->queue);
{
std::lock_guard < std::mutex > lk (priv->lock);
data->dispose = nullptr;
data->pool = nullptr;
priv->data_pool.push (data);
}
gst_object_unref (pool);
}
static void
gst_d3d12_fence_data_free (GstD3D12FenceData * data)
{
delete data;
}
static gboolean
gst_d3d12_fence_data_dispose (GstD3D12FenceData * data)
{
if (!data->pool)
return TRUE;
gst_mini_object_ref (data);
gst_d3d12_fence_data_pool_release (data->pool, data);
return FALSE;
}
static GstD3D12FenceData *
gst_d3d12_fence_data_new (void)
{
auto data = new GstD3D12FenceData ();
gst_mini_object_init (data, 0, gst_d3d12_fence_data_get_type (),
nullptr, nullptr, (GstMiniObjectFreeFunction) gst_d3d12_fence_data_free);
return data;
}
/**
* gst_d3d12_fence_data_pool_acquire:
* @pool: a #GstD3D12FenceDataPool
* @data: (out) (transfer full): a pointer to #GstD3D12FenceData
*
* Acquire #GstD3D12CommandAllocator object
*
* Returns: %TRUE if successful
*
* Since: 1.26
*/
gboolean
gst_d3d12_fence_data_pool_acquire (GstD3D12FenceDataPool * pool,
GstD3D12FenceData ** data)
{
g_return_val_if_fail (GST_IS_D3D12_FENCE_DATA_POOL (pool), FALSE);
g_return_val_if_fail (data, FALSE);
auto priv = pool->priv;
GstD3D12FenceData *new_data = nullptr;
{
std::lock_guard < std::mutex > lk (priv->lock);
if (!priv->data_pool.empty ()) {
new_data = priv->data_pool.front ();
priv->data_pool.pop ();
}
}
if (!new_data) {
new_data = gst_d3d12_fence_data_new ();
if (GST_OBJECT_FLAG_IS_SET (pool, GST_OBJECT_FLAG_MAY_BE_LEAKED))
GST_MINI_OBJECT_FLAG_SET (new_data, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
}
new_data->pool = (GstD3D12FenceDataPool *) gst_object_ref (pool);
new_data->dispose =
(GstMiniObjectDisposeFunction) gst_d3d12_fence_data_dispose;
*data = new_data;
return TRUE;
}
/**
* gst_d3d12_fence_data_push:
* @data: a #GstD3D12FenceData
* @user_data: private data
* @notify: a #GDestroyNotify
*
* Sets notify callback
*
* Since: 1.26
*/
void
gst_d3d12_fence_data_push (GstD3D12FenceData * data, gpointer user_data,
GDestroyNotify notify)
{
g_return_if_fail (data);
NotifyData notify_data;
notify_data.user_data = user_data;
notify_data.notify = notify;
gst_vec_deque_push_tail_struct (data->queue, &notify_data);
}
/**
* gst_d3d12_fence_data_ref:
* @data: a #GstD3D12FenceData
*
* Increments the refcount of @data
*
* Returns: (transfer full): a #GstD3D12FenceData
*
* Since: 1.26
*/
GstD3D12FenceData *
gst_d3d12_fence_data_ref (GstD3D12FenceData * data)
{
return (GstD3D12FenceData *) gst_mini_object_ref (data);
}
/**
* gst_d3d12_fence_data_unref:
* @cmd: a #GstD3D12FenceData
*
* Decrements the refcount of @data
*
* Since: 1.26
*/
void
gst_d3d12_fence_data_unref (GstD3D12FenceData * data)
{
gst_mini_object_unref (data);
}
/**
* gst_clear_d3d12_fence_data:
* @data: a pointer to #GstD3D12FenceData
*
* Clears a reference to a #GstD3D12FenceData
*
* Since: 1.26
*/
void
gst_clear_d3d12_fence_data (GstD3D12FenceData ** data)
{
gst_clear_mini_object (data);
}