gstreamer/gst-libs/gst/vulkan/gstvkdescriptorpool.h
Matthew Waters 32b3387ae6 vulkan: implement proper descriptor set handling
The major functionality gain this provides is proper reference counting
for a descriptor set.  Overall this allows us to create descriptor sets
when they are needed (or reused from a cache) without violating any of
vulkan's object synchronisation requirements.

As there are a fixed number of sets available in a pool, the number of
descriptors in elements is currently hardcoded to 32.  This can be extended
in a future change to create pools on the fly if that limit is ever overrun.
2019-11-07 20:01:57 +00:00

65 lines
2.9 KiB
C

/*
* 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.
*/
#ifndef __GST_VULKAN_DESCRIPTOR_POOL_H__
#define __GST_VULKAN_DESCRIPTOR_POOL_H__
#include <gst/vulkan/gstvkqueue.h>
#define GST_TYPE_VULKAN_DESCRIPTOR_POOL (gst_vulkan_descriptor_pool_get_type())
#define GST_VULKAN_DESCRIPTOR_POOL(o) (G_TYPE_CHECK_INSTANCE_CAST((o), GST_TYPE_VULKAN_DESCRIPTOR_POOL, GstVulkanDescriptorPool))
#define GST_VULKAN_DESCRIPTOR_POOL_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GST_TYPE_VULKAN_DESCRIPTOR_POOL, GstVulkanDescriptorPoolClass))
#define GST_IS_VULKAN_DESCRIPTOR_POOL(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_TYPE_VULKAN_DESCRIPTOR_POOL))
#define GST_IS_VULKAN_DESCRIPTOR_POOL_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), GST_TYPE_VULKAN_DESCRIPTOR_POOL))
#define GST_VULKAN_DESCRIPTOR_POOL_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_VULKAN_DESCRIPTOR_POOL, GstVulkanDescriptorPoolClass))
GST_VULKAN_API
GType gst_vulkan_descriptor_pool_get_type (void);
struct _GstVulkanDescriptorPool
{
GstObject parent;
GstVulkanDevice *device;
VkDescriptorPool pool; /* hides a pointer */
};
struct _GstVulkanDescriptorPoolClass
{
GstObjectClass parent_class;
};
GST_VULKAN_API
GstVulkanDescriptorPool * gst_vulkan_descriptor_pool_new_wrapped (GstVulkanDevice * device,
VkDescriptorPool pool,
gsize max_sets);
GST_VULKAN_API
GstVulkanDevice * gst_vulkan_descriptor_pool_get_device (GstVulkanDescriptorPool * pool);
GST_VULKAN_API
GstVulkanDescriptorSet * gst_vulkan_descriptor_pool_create (GstVulkanDescriptorPool * pool,
guint n_layouts,
GstVulkanHandle **layouts,
GError ** error);
GST_VULKAN_API
gsize gst_vulkan_descriptor_pool_get_max_sets (GstVulkanDescriptorPool * pool);
#endif /* __GST_VULKAN_DESCRIPTOR_POOL_H__ */