gstreamer/gst-libs/gst/vulkan/gstvkdescriptorpool.c

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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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvkdescriptorpool.h"
/**
* SECTION:vkdescriptorpool
* @title: GstVulkanDescriptorPool
* @short_description: Vulkan descriptor pool
* @see_also: #GstVulkanDevice
*/
#define GET_PRIV(pool) gst_vulkan_descriptor_pool_get_instance_private (pool)
#define GST_CAT_DEFAULT gst_vulkan_descriptor_pool_debug
GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
struct _GstVulkanDescriptorPoolPrivate
{
gsize max_sets;
gsize outstanding;
};
#define parent_class gst_vulkan_descriptor_pool_parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanDescriptorPool, gst_vulkan_descriptor_pool,
GST_TYPE_OBJECT, G_ADD_PRIVATE (GstVulkanDescriptorPool);
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT,
"vulkancommandpool", 0, "Vulkan Command Pool"));
static void gst_vulkan_descriptor_pool_finalize (GObject * object);
static void
gst_vulkan_descriptor_pool_init (GstVulkanDescriptorPool * pool)
{
}
static void
gst_vulkan_descriptor_pool_class_init (GstVulkanDescriptorPoolClass *
device_class)
{
GObjectClass *gobject_class = (GObjectClass *) device_class;
gobject_class->finalize = gst_vulkan_descriptor_pool_finalize;
}
static void
gst_vulkan_descriptor_pool_finalize (GObject * object)
{
GstVulkanDescriptorPool *pool = GST_VULKAN_DESCRIPTOR_POOL (object);
#if 0
GstVulkanDescriptorPoolPrivate *priv = GET_PRIV (pool);
/* FIXME: track these correctly */
if (priv->outstanding > 0)
g_critical
("Destroying a Vulkan descriptor pool that has outstanding descriptors!");
#endif
if (pool->pool)
vkDestroyDescriptorPool (pool->device->device, pool->pool, NULL);
pool->pool = VK_NULL_HANDLE;
gst_clear_object (&pool->device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* gst_vulkan_descriptor_pool_new_wrapped:
* @device: a #GstVulkanDevice
* @pool: (transfer full): a #VkDescriptorPool
*
* Returns: (transfer full): a new #GstVulkanDescriptorPool
*
* Since: 1.18
*/
GstVulkanDescriptorPool *
gst_vulkan_descriptor_pool_new_wrapped (GstVulkanDevice * device,
VkDescriptorPool pool, gsize max_sets)
{
GstVulkanDescriptorPool *ret;
GstVulkanDescriptorPoolPrivate *priv;
g_return_val_if_fail (GST_IS_VULKAN_DEVICE (device), NULL);
g_return_val_if_fail (pool != VK_NULL_HANDLE, NULL);
g_return_val_if_fail (max_sets > 0, NULL);
ret = g_object_new (GST_TYPE_VULKAN_DESCRIPTOR_POOL, NULL);
ret->device = gst_object_ref (device);
ret->pool = pool;
priv = GET_PRIV (ret);
priv->max_sets = max_sets;
gst_object_ref_sink (ret);
return ret;
}
/**
* gst_vulkan_descriptor_pool_get_device
* @pool: a #GstVulkanDescriptorPool
*
* Returns: (transfer full): the parent #GstVulkanDevice for this descriptor pool
*
* Since: 1.18
*/
GstVulkanDevice *
gst_vulkan_descriptor_pool_get_device (GstVulkanDescriptorPool * pool)
{
g_return_val_if_fail (GST_IS_VULKAN_DESCRIPTOR_POOL (pool), NULL);
return pool->device ? gst_object_ref (pool->device) : NULL;
}
/**
* gst_vulkan_descriptor_pool_get_max_sets:
* @pool: a #GstVulkanDescriptorPool
*
* Returns: the maximum number of sets allocatable from @pool
*/
gsize
gst_vulkan_descriptor_pool_get_max_sets (GstVulkanDescriptorPool * pool)
{
GstVulkanDescriptorPoolPrivate *priv;
g_return_val_if_fail (GST_IS_VULKAN_DESCRIPTOR_POOL (pool), 0);
priv = GET_PRIV (pool);
return priv->max_sets;
}
static GstVulkanDescriptorSet *
descriptor_set_alloc (GstVulkanDescriptorPool * pool, guint n_layouts,
GstVulkanHandle ** layouts, GError ** error)
{
VkDescriptorSetLayout *vk_layouts;
VkDescriptorSetAllocateInfo alloc_info;
GstVulkanDescriptorSet *set;
VkDescriptorSet descriptor;
VkResult err;
guint i;
vk_layouts = g_alloca (n_layouts * sizeof (VkDescriptorSetLayout));
for (i = 0; i < n_layouts; i++)
vk_layouts[i] = (VkDescriptorSetLayout) layouts[i]->handle;
/* *INDENT-OFF* */
alloc_info = (VkDescriptorSetAllocateInfo) {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
.pNext = NULL,
.descriptorPool = pool->pool,
.descriptorSetCount = n_layouts,
.pSetLayouts = vk_layouts
};
/* *INDENT-ON* */
err =
vkAllocateDescriptorSets (pool->device->device, &alloc_info, &descriptor);
if (gst_vulkan_error_to_g_error (err, error, "vkAllocateDescriptorSets") < 0)
return NULL;
set =
gst_vulkan_descriptor_set_new_wrapped (pool, descriptor, n_layouts,
layouts);
GST_LOG_OBJECT (pool, "created descriptor set %p", set);
return set;
}
/**
* gst_vulkan_descriptor_pool_create:
* @pool: a #GstVulkanDescriptorPool
* @error: a #GError
*
* Returns: a new #GstVulkanDescriptorSet
*
* Since: 1.18
*/
GstVulkanDescriptorSet *
gst_vulkan_descriptor_pool_create (GstVulkanDescriptorPool * pool,
guint n_layouts, GstVulkanHandle ** layouts, GError ** error)
{
GstVulkanDescriptorSet *cmd = NULL;
GstVulkanDescriptorPoolPrivate *priv;
g_return_val_if_fail (GST_IS_VULKAN_DESCRIPTOR_POOL (pool), NULL);
g_return_val_if_fail (n_layouts > 0, NULL);
g_return_val_if_fail (layouts != NULL, NULL);
priv = GET_PRIV (pool);
GST_OBJECT_LOCK (pool);
priv->outstanding++;
if (priv->outstanding >= priv->max_sets) {
g_warning ("%s: Attempt was made to allocate more descriptor sets than are "
"available", GST_OBJECT_NAME (pool));
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_TOO_MANY_OBJECTS,
"Attempt was made to allocate more descriptor sets than are available");
priv->outstanding--;
GST_OBJECT_UNLOCK (pool);
return NULL;
}
GST_OBJECT_UNLOCK (pool);
cmd = descriptor_set_alloc (pool, n_layouts, layouts, error);
if (!cmd)
return NULL;
return cmd;
}