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32b3387ae6
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.
56 lines
2.5 KiB
C
56 lines
2.5 KiB
C
/*
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* GStreamer
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* Copyright (C) 2019 Matthew Waters <matthew@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VULKAN_DESCRIPTOR_CACHE_H__
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#define __GST_VULKAN_DESCRIPTOR_CACHE_H__
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#include <gst/vulkan/gstvkqueue.h>
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#define GST_TYPE_VULKAN_DESCRIPTOR_CACHE (gst_vulkan_descriptor_cache_get_type())
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#define GST_VULKAN_DESCRIPTOR_CACHE(o) (G_TYPE_CHECK_INSTANCE_CAST((o), GST_TYPE_VULKAN_DESCRIPTOR_CACHE, GstVulkanDescriptorCache))
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#define GST_VULKAN_DESCRIPTOR_CACHE_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GST_TYPE_VULKAN_DESCRIPTOR_CACHE, GstVulkanDescriptorCacheClass))
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#define GST_IS_VULKAN_DESCRIPTOR_CACHE(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_TYPE_VULKAN_DESCRIPTOR_CACHE))
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#define GST_IS_VULKAN_DESCRIPTOR_CACHE_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), GST_TYPE_VULKAN_DESCRIPTOR_CACHE))
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#define GST_VULKAN_DESCRIPTOR_CACHE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_VULKAN_DESCRIPTOR_CACHE, GstVulkanDescriptorCacheClass))
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GST_VULKAN_API
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GType gst_vulkan_descriptor_cache_get_type (void);
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struct _GstVulkanDescriptorCache
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{
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GstObject parent;
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GstVulkanDescriptorPool *pool;
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};
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struct _GstVulkanDescriptorCacheClass
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{
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GstObjectClass parent_class;
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};
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GST_VULKAN_API
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GstVulkanDescriptorCache * gst_vulkan_descriptor_cache_new (GstVulkanDescriptorPool * pool,
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guint n_layouts,
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GstVulkanHandle ** layouts);
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GST_VULKAN_API
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GstVulkanDescriptorSet * gst_vulkan_descriptor_cache_acquire (GstVulkanDescriptorCache * cache,
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GError ** error);
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#endif /* __GST_VULKAN_DESCRIPTOR_CACHE_H__ */
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