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/*
* GStreamer
* Copyright (C) 2019 Matthew Waters <matthew@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.
*/
/**
* SECTION:vulkanhandlepool
* @title: vulkanhandlepool
*
* #GstVulkanHandlePool holds a number of handles that are pooled together.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvkhandlepool.h"
#include "gstvkdevice.h"
#define GST_VULKAN_HANDLE_POOL_LARGE_OUTSTANDING 1024
#define GST_CAT_DEFAULT gst_debug_vulkan_handle_pool
GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
#define parent_class gst_vulkan_handle_pool_parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstVulkanHandlePool, gst_vulkan_handle_pool,
GST_TYPE_OBJECT, GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT,
"vulkanhandlepool", 0, "Vulkan handle pool"));
static gpointer
gst_vulkan_handle_pool_default_alloc (GstVulkanHandlePool * pool,
GError ** error)
{
return NULL;
}
static gpointer
gst_vulkan_handle_pool_default_acquire (GstVulkanHandlePool * pool,
GError ** error)
{
gpointer ret;
GST_OBJECT_LOCK (pool);
if (pool->available->len > 0) {
ret = g_ptr_array_remove_index_fast (pool->available, 0);
} else {
ret = gst_vulkan_handle_pool_alloc (pool, error);
}
if (ret) {
g_ptr_array_add (pool->outstanding, ret);
#if defined(GST_ENABLE_EXTRA_CHECKS)
if (pool->outstanding->len > GST_VULKAN_HANDLE_POOL_LARGE_OUTSTANDING)
g_critical ("%s: There are a large number of handles outstanding! "
"This usually means there is a reference counting issue somewhere.",
GST_OBJECT_NAME (pool));
#endif
}
GST_OBJECT_UNLOCK (pool);
return ret;
}
static void
gst_vulkan_handle_pool_default_release (GstVulkanHandlePool * pool,
gpointer handle)
{
GST_OBJECT_LOCK (pool);
if (!g_ptr_array_remove_fast (pool->outstanding, handle)) {
g_warning ("%s: Attempt was made to release a handle (%p) that does not "
"belong to us", GST_OBJECT_NAME (pool), handle);
GST_OBJECT_UNLOCK (pool);
return;
}
g_ptr_array_add (pool->available, handle);
GST_OBJECT_UNLOCK (pool);
}
static void
gst_vulkan_handle_pool_default_free (GstVulkanHandlePool * pool,
gpointer handle)
{
}
static void
do_free_handle (gpointer handle, GstVulkanHandlePool * pool)
{
GstVulkanHandlePoolClass *klass = GST_VULKAN_HANDLE_POOL_GET_CLASS (pool);
klass->free (pool, handle);
}
static void
gst_vulkan_handle_pool_dispose (GObject * object)
{
GstVulkanHandlePool *pool = GST_VULKAN_HANDLE_POOL (object);
if (pool->outstanding) {
g_warn_if_fail (pool->outstanding->len <= 0);
g_ptr_array_unref (pool->outstanding);
}
pool->outstanding = NULL;
if (pool->available) {
g_ptr_array_foreach (pool->available, (GFunc) do_free_handle, pool);
g_ptr_array_unref (pool->available);
}
pool->available = NULL;
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_vulkan_handle_pool_finalize (GObject * object)
{
GstVulkanHandlePool *pool = GST_VULKAN_HANDLE_POOL (object);
gst_clear_object (&pool->device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_vulkan_handle_pool_init (GstVulkanHandlePool * handle)
{
handle->outstanding = g_ptr_array_new ();
handle->available = g_ptr_array_new ();
}
static void
gst_vulkan_handle_pool_class_init (GstVulkanHandlePoolClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->dispose = gst_vulkan_handle_pool_dispose;
gobject_class->finalize = gst_vulkan_handle_pool_finalize;
klass->alloc = gst_vulkan_handle_pool_default_alloc;
klass->acquire = gst_vulkan_handle_pool_default_acquire;
klass->release = gst_vulkan_handle_pool_default_release;
klass->free = gst_vulkan_handle_pool_default_free;
}
gpointer
gst_vulkan_handle_pool_alloc (GstVulkanHandlePool * pool, GError ** error)
{
GstVulkanHandlePoolClass *klass;
g_return_val_if_fail (GST_IS_VULKAN_HANDLE_POOL (pool), NULL);
klass = GST_VULKAN_HANDLE_POOL_GET_CLASS (pool);
g_return_val_if_fail (klass->alloc != NULL, NULL);
return klass->alloc (pool, error);
}
gpointer
gst_vulkan_handle_pool_acquire (GstVulkanHandlePool * pool, GError ** error)
{
GstVulkanHandlePoolClass *klass;
g_return_val_if_fail (GST_IS_VULKAN_HANDLE_POOL (pool), NULL);
klass = GST_VULKAN_HANDLE_POOL_GET_CLASS (pool);
g_return_val_if_fail (klass->acquire != NULL, NULL);
return klass->acquire (pool, error);
}
void
gst_vulkan_handle_pool_release (GstVulkanHandlePool * pool, gpointer handle)
{
GstVulkanHandlePoolClass *klass;
g_return_if_fail (GST_IS_VULKAN_HANDLE_POOL (pool));
klass = GST_VULKAN_HANDLE_POOL_GET_CLASS (pool);
g_return_if_fail (klass->release != NULL);
klass->release (pool, handle);
}
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