mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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ce7256e0d3
In order to use it, without depending in a previous calling of _create_info_from_args(), VkFormat as input parameter to gst_vulkan_image_memory_init() was added. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4351>
704 lines
20 KiB
C
704 lines
20 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstvkimagememory.h"
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/**
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* SECTION:vkimagememory
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* @title: GstVulkanImageMemory
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* @short_description: memory subclass for Vulkan image memory
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* @see_also: #GstVulkanDevice, #GstMemory, #GstAllocator
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*
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* GstVulkanImageMemory is a #GstMemory subclass providing support for the
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* mapping of Vulkan device memory.
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*/
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#define GST_CAT_DEFUALT GST_CAT_VULKAN_IMAGE_MEMORY
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFUALT);
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static GstAllocator *_vulkan_image_memory_allocator;
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static gboolean
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_create_info_from_args (VkImageCreateInfo * info, VkFormat format, gsize width,
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gsize height, VkImageTiling tiling, VkImageUsageFlags usage)
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{
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/* FIXME: validate these */
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/* *INDENT-OFF* */
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*info = (VkImageCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
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.pNext = NULL,
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.flags = 0,
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.imageType = VK_IMAGE_TYPE_2D,
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.format = format,
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.extent = (VkExtent3D) { width, height, 1 },
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.mipLevels = 1,
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.arrayLayers = 1,
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.samples = VK_SAMPLE_COUNT_1_BIT,
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.tiling = tiling,
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.usage = usage,
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.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
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.queueFamilyIndexCount = 0,
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.pQueueFamilyIndices = NULL,
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.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
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};
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/* *INDENT-ON* */
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return TRUE;
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}
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gboolean
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gst_vulkan_image_memory_init (GstVulkanImageMemory * mem,
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GstAllocator * allocator, GstMemory * parent, GstVulkanDevice * device,
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VkFormat format, VkImageUsageFlags usage, GstAllocationParams * params,
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gsize size, gpointer user_data, GDestroyNotify notify)
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{
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gsize align = gst_memory_alignment, offset = 0, maxsize = size;
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GstMemoryFlags flags = 0;
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if (params) {
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flags = params->flags;
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align |= params->align;
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offset = params->prefix;
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maxsize += params->prefix + params->padding + align;
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}
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gst_memory_init (GST_MEMORY_CAST (mem), flags, allocator, parent, maxsize,
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align, offset, size);
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mem->device = gst_object_ref (device);
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mem->barrier.parent.type = GST_VULKAN_BARRIER_TYPE_IMAGE;
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mem->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
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mem->barrier.parent.access_flags = 0;
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mem->barrier.image_layout = VK_IMAGE_LAYOUT_UNDEFINED;
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/* *INDENT-OFF* */
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mem->barrier.subresource_range = (VkImageSubresourceRange) {
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.aspectMask = gst_vulkan_format_get_aspect (format),
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.baseMipLevel = 0,
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.levelCount = 1,
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.baseArrayLayer = 0,
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.layerCount = 1,
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};
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/* *INDENT-ON* */
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mem->usage = usage;
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mem->wrapped = FALSE;
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mem->notify = notify;
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mem->user_data = user_data;
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g_mutex_init (&mem->lock);
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mem->views = g_ptr_array_new ();
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mem->outstanding_views = g_ptr_array_new ();
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GST_CAT_DEBUG (GST_CAT_VULKAN_IMAGE_MEMORY,
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"new Vulkan Image memory:%p size:%" G_GSIZE_FORMAT, mem, maxsize);
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return TRUE;
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}
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static GstVulkanImageMemory *
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_vk_image_mem_new_alloc_with_image_info (GstAllocator * allocator,
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GstMemory * parent, GstVulkanDevice * device,
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VkImageCreateInfo * image_info, VkMemoryPropertyFlags mem_prop_flags,
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gpointer user_data, GDestroyNotify notify)
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{
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GstVulkanImageMemory *mem = NULL;
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GstAllocationParams params = { 0, };
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VkPhysicalDevice gpu;
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GError *error = NULL;
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GArray *qfi = NULL;
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guint32 type_idx;
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VkImage image;
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VkResult err;
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gpu = gst_vulkan_device_get_physical_device (device);
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if (!image_info->pQueueFamilyIndices) {
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/* XXX: overwrite the queue indices part of the structure */
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qfi = gst_vulkan_device_queue_family_indices (device);
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image_info->pQueueFamilyIndices = (uint32_t *) qfi->data;
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image_info->queueFamilyIndexCount = qfi->len;
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image_info->sharingMode = qfi->len > 1 ? VK_SHARING_MODE_CONCURRENT :
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VK_SHARING_MODE_EXCLUSIVE;
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}
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err = vkCreateImage (device->device, image_info, NULL, &image);
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if (qfi)
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g_array_unref (qfi);
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if (gst_vulkan_error_to_g_error (err, &error, "vkCreateImage") < 0)
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goto vk_error;
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mem = g_new0 (GstVulkanImageMemory, 1);
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vkGetImageMemoryRequirements (device->device, image, &mem->requirements);
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gst_vulkan_image_memory_init (mem, allocator, parent, device,
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image_info->format, image_info->usage, ¶ms, mem->requirements.size,
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user_data, notify);
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mem->create_info = *image_info;
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/* XXX: to avoid handling pNext lifetime */
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mem->create_info.pNext = NULL;
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mem->image = image;
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err = vkGetPhysicalDeviceImageFormatProperties (gpu, image_info->format,
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VK_IMAGE_TYPE_2D, image_info->tiling, image_info->usage, 0,
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&mem->format_properties);
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if (gst_vulkan_error_to_g_error (err, &error,
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"vkGetPhysicalDeviceImageFormatProperties") < 0)
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goto vk_error;
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if (!gst_vulkan_memory_find_memory_type_index_with_requirements (device,
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&mem->requirements, mem_prop_flags, &type_idx))
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goto error;
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if ((mem->requirements.alignment & (mem->requirements.alignment - 1)) != 0) {
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g_set_error_literal (&error, GST_VULKAN_ERROR, GST_VULKAN_FAILED,
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"Vulkan implementation requires unsupported non-power-of 2 memory alignment");
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goto error;
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}
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params.align = mem->requirements.alignment - 1;
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mem->vk_mem = (GstVulkanMemory *) gst_vulkan_memory_alloc (device, type_idx,
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¶ms, mem->requirements.size, mem_prop_flags);
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if (!mem->vk_mem)
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goto error;
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err = vkBindImageMemory (device->device, image, mem->vk_mem->mem_ptr, 0);
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if (gst_vulkan_error_to_g_error (err, &error, "vkBindImageMemory") < 0)
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goto vk_error;
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return mem;
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vk_error:
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{
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GST_CAT_ERROR (GST_CAT_VULKAN_IMAGE_MEMORY,
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"Failed to allocate image memory %s", error->message);
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g_clear_error (&error);
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goto error;
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}
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error:
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{
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if (mem)
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gst_memory_unref ((GstMemory *) mem);
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return NULL;
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}
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}
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static GstVulkanImageMemory *
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_vk_image_mem_new_alloc (GstAllocator * allocator, GstMemory * parent,
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GstVulkanDevice * device, VkFormat format, gsize width, gsize height,
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VkImageTiling tiling, VkImageUsageFlags usage,
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VkMemoryPropertyFlags mem_prop_flags, gpointer user_data,
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GDestroyNotify notify)
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{
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VkImageCreateInfo image_info;
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if (!_create_info_from_args (&image_info, format, width, height, tiling,
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usage)) {
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GST_CAT_ERROR (GST_CAT_VULKAN_IMAGE_MEMORY, "Incorrect image parameters");
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return NULL;
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}
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return _vk_image_mem_new_alloc_with_image_info (allocator, parent, device,
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&image_info, mem_prop_flags, user_data, notify);
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}
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static GstVulkanImageMemory *
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_vk_image_mem_new_wrapped (GstAllocator * allocator, GstMemory * parent,
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GstVulkanDevice * device, VkImage image, VkFormat format, gsize width,
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gsize height, VkImageTiling tiling, VkImageUsageFlags usage,
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gpointer user_data, GDestroyNotify notify)
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{
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GstVulkanImageMemory *mem = g_new0 (GstVulkanImageMemory, 1);
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GstAllocationParams params = { 0, };
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VkPhysicalDevice gpu;
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GError *error = NULL;
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VkResult err;
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gpu = gst_vulkan_device_get_physical_device (device);
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mem->image = image;
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vkGetImageMemoryRequirements (device->device, mem->image, &mem->requirements);
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/* XXX: assumes alignment is a power of 2 */
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params.align = mem->requirements.alignment - 1;
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params.flags = GST_MEMORY_FLAG_NOT_MAPPABLE;
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gst_vulkan_image_memory_init (mem, allocator, parent, device, format, usage,
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¶ms, mem->requirements.size, user_data, notify);
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mem->wrapped = TRUE;
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if (!_create_info_from_args (&mem->create_info, format, width, height, tiling,
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usage)) {
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GST_CAT_ERROR (GST_CAT_VULKAN_IMAGE_MEMORY, "Incorrect image parameters");
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goto error;
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}
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err = vkGetPhysicalDeviceImageFormatProperties (gpu, format, VK_IMAGE_TYPE_2D,
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tiling, usage, 0, &mem->format_properties);
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if (gst_vulkan_error_to_g_error (err, &error,
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"vkGetPhysicalDeviceImageFormatProperties") < 0)
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goto vk_error;
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return mem;
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vk_error:
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{
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GST_CAT_ERROR (GST_CAT_VULKAN_IMAGE_MEMORY,
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"Failed to allocate image memory %s", error->message);
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g_clear_error (&error);
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goto error;
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}
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error:
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{
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gst_memory_unref ((GstMemory *) mem);
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return NULL;
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}
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}
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static gpointer
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_vk_image_mem_map_full (GstVulkanImageMemory * mem, GstMapInfo * info,
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gsize size)
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{
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GstMapInfo *vk_map_info;
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/* FIXME: possible layout transformation needed */
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g_mutex_lock (&mem->lock);
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if (!mem->vk_mem) {
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g_mutex_unlock (&mem->lock);
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return NULL;
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}
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vk_map_info = g_new0 (GstMapInfo, 1);
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info->user_data[0] = vk_map_info;
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if (!gst_memory_map ((GstMemory *) mem->vk_mem, vk_map_info, info->flags)) {
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g_free (vk_map_info);
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g_mutex_unlock (&mem->lock);
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return NULL;
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}
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g_mutex_unlock (&mem->lock);
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return vk_map_info->data;
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}
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static void
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_vk_image_mem_unmap_full (GstVulkanImageMemory * mem, GstMapInfo * info)
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{
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g_mutex_lock (&mem->lock);
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gst_memory_unmap ((GstMemory *) mem->vk_mem, info->user_data[0]);
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g_mutex_unlock (&mem->lock);
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g_free (info->user_data[0]);
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}
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static GstMemory *
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_vk_image_mem_copy (GstVulkanImageMemory * src, gssize offset, gssize size)
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{
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return NULL;
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}
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static GstMemory *
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_vk_image_mem_share (GstVulkanImageMemory * mem, gssize offset, gssize size)
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{
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return NULL;
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}
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static gboolean
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_vk_image_mem_is_span (GstVulkanImageMemory * mem1, GstVulkanImageMemory * mem2,
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gsize * offset)
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{
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return FALSE;
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}
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static GstMemory *
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_vk_image_mem_alloc (GstAllocator * allocator, gsize size,
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GstAllocationParams * params)
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{
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g_critical ("Subclass should override GstAllocatorClass::alloc() function");
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return NULL;
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}
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static void
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_free_view (GstVulkanImageView * view, gpointer unused)
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{
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gst_vulkan_image_view_unref (view);
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}
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static void
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_vk_image_mem_free (GstAllocator * allocator, GstMemory * memory)
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{
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GstVulkanImageMemory *mem = (GstVulkanImageMemory *) memory;
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GST_CAT_TRACE (GST_CAT_VULKAN_IMAGE_MEMORY, "freeing image memory:%p "
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"id:%" G_GUINT64_FORMAT, mem, (guint64) mem->image);
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g_warn_if_fail (mem->outstanding_views->len == 0);
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g_ptr_array_unref (mem->outstanding_views);
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g_ptr_array_foreach (mem->views, (GFunc) _free_view, NULL);
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g_ptr_array_unref (mem->views);
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if (mem->image && !mem->wrapped)
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vkDestroyImage (mem->device->device, mem->image, NULL);
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if (mem->vk_mem)
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gst_memory_unref ((GstMemory *) mem->vk_mem);
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if (mem->notify)
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mem->notify (mem->user_data);
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gst_object_unref (mem->device);
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g_free (mem);
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}
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/**
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* gst_vulkan_image_memory_alloc_with_image_info:
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* @device: a #GstVulkanDevice
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* @image_info: VkImageCreateInfo structure
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* @mem_prop_flags: VkMemoryPropertyFlags flags
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*
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* Returns: a #GstMemory object backed by a vulkan device memory
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*
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* Since: 1.24
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*/
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GstMemory *
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gst_vulkan_image_memory_alloc_with_image_info (GstVulkanDevice * device,
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VkImageCreateInfo * image_info, VkMemoryPropertyFlags mem_prop_flags)
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{
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GstVulkanImageMemory *mem;
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g_return_val_if_fail (image_info
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&& image_info->sType == VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO, NULL);
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mem = _vk_image_mem_new_alloc_with_image_info (_vulkan_image_memory_allocator,
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NULL, device, image_info, mem_prop_flags, NULL, NULL);
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return (GstMemory *) mem;
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}
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/**
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* gst_vulkan_image_memory_alloc:
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* @device: a #GstVulkanDevice
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* @format: the VkFormat for the new image
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* @width: width for the new image
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* @height: height for the new image
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* @tiling: tiling for the new image
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* @usage: usage flags for the new image
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* @mem_prop_flags: VkDeviceMemory property flags for the new image
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*
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* Allocated a new #GstVulkanImageMemory.
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*
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* Returns: a #GstMemory object backed by a vulkan device memory
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*
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* Since: 1.18
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*/
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GstMemory *
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gst_vulkan_image_memory_alloc (GstVulkanDevice * device, VkFormat format,
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gsize width, gsize height, VkImageTiling tiling, VkImageUsageFlags usage,
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VkMemoryPropertyFlags mem_prop_flags)
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{
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GstVulkanImageMemory *mem;
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mem = _vk_image_mem_new_alloc (_vulkan_image_memory_allocator, NULL, device,
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format, width, height, tiling, usage, mem_prop_flags, NULL, NULL);
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return (GstMemory *) mem;
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}
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/**
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* gst_vulkan_image_memory_wrapped:
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* @device: a #GstVulkanDevice
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* @image: a VkImage
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* @format: the VkFormat for @image
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* @width: width of @image
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* @height: height of @image
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* @tiling: tiling of @image
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* @usage: usage flags of @image
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* @user_data: (nullable): user data for @notify
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* @notify: a #GDestroyNotify when @image is no longer needed
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*
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* Return: a new #GstVulkanImageMemory wrapping @image
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*
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* Since: 1.18
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*/
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GstMemory *
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gst_vulkan_image_memory_wrapped (GstVulkanDevice * device, VkImage image,
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VkFormat format, gsize width, gsize height, VkImageTiling tiling,
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VkImageUsageFlags usage, gpointer user_data, GDestroyNotify notify)
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{
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GstVulkanImageMemory *mem;
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mem = _vk_image_mem_new_wrapped (_vulkan_image_memory_allocator, NULL, device,
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image, format, width, height, tiling, usage, user_data, notify);
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return (GstMemory *) mem;
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}
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/**
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* gst_vulkan_image_memory_get_width:
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* @image: a #GstVulkanImageMemory
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*
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* Return: the width of @image
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*
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* Since: 1.18
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*/
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guint32
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gst_vulkan_image_memory_get_width (GstVulkanImageMemory * image)
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{
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g_return_val_if_fail (gst_is_vulkan_image_memory (GST_MEMORY_CAST (image)),
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0);
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return image->create_info.extent.width;
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|
}
|
|
|
|
/**
|
|
* gst_vulkan_image_memory_get_height:
|
|
* @image: a #GstVulkanImageMemory
|
|
*
|
|
* Return: the height of @image
|
|
*
|
|
* Since: 1.18
|
|
*/
|
|
guint32
|
|
gst_vulkan_image_memory_get_height (GstVulkanImageMemory * image)
|
|
{
|
|
g_return_val_if_fail (gst_is_vulkan_image_memory (GST_MEMORY_CAST (image)),
|
|
0);
|
|
|
|
return image->create_info.extent.height;
|
|
}
|
|
|
|
static gint
|
|
find_view_index_unlocked (GstVulkanImageMemory * image,
|
|
GstVulkanImageView * view)
|
|
{
|
|
guint index;
|
|
|
|
if (!g_ptr_array_find (image->views, view, &index))
|
|
return -1;
|
|
|
|
return (gint) index;
|
|
}
|
|
|
|
extern void
|
|
gst_vulkan_image_memory_release_view (GstVulkanImageMemory * image,
|
|
GstVulkanImageView * view);
|
|
|
|
void
|
|
gst_vulkan_image_memory_release_view (GstVulkanImageMemory * image,
|
|
GstVulkanImageView * view)
|
|
{
|
|
guint index;
|
|
|
|
g_return_if_fail (gst_is_vulkan_image_memory (GST_MEMORY_CAST (image)));
|
|
g_return_if_fail (image == view->image);
|
|
|
|
g_mutex_lock (&image->lock);
|
|
GST_CAT_TRACE (GST_CAT_VULKAN_IMAGE_MEMORY, "image %p removing view %p",
|
|
image, view);
|
|
if (g_ptr_array_find (image->outstanding_views, view, &index)) {
|
|
g_ptr_array_steal_index_fast (image->outstanding_views, index);
|
|
g_ptr_array_add (image->views, view);
|
|
} else {
|
|
g_warning ("GstVulkanImageMemory:%p attempt to remove a view %p "
|
|
"that we do not own", image, view);
|
|
}
|
|
view->image = NULL;
|
|
g_mutex_unlock (&image->lock);
|
|
gst_memory_unref ((GstMemory *) image);
|
|
}
|
|
|
|
/**
|
|
* gst_vulkan_image_memory_add_view:
|
|
* @image: a #GstVulkanImageMemory
|
|
* @view: a #GstVulkanImageView
|
|
*
|
|
* Since: 1.18
|
|
*/
|
|
void
|
|
gst_vulkan_image_memory_add_view (GstVulkanImageMemory * image,
|
|
GstVulkanImageView * view)
|
|
{
|
|
g_return_if_fail (gst_is_vulkan_image_memory (GST_MEMORY_CAST (image)));
|
|
g_return_if_fail (view != NULL);
|
|
g_return_if_fail (image == view->image);
|
|
|
|
g_mutex_lock (&image->lock);
|
|
if (find_view_index_unlocked (image, view) != -1) {
|
|
g_warn_if_reached ();
|
|
g_mutex_unlock (&image->lock);
|
|
return;
|
|
}
|
|
g_ptr_array_add (image->outstanding_views, view);
|
|
GST_CAT_TRACE (GST_CAT_VULKAN_IMAGE_MEMORY, "Image %p adding view %p",
|
|
image, view);
|
|
|
|
g_mutex_unlock (&image->lock);
|
|
}
|
|
|
|
struct view_data
|
|
{
|
|
GstVulkanImageMemory *img;
|
|
GstVulkanImageMemoryFindViewFunc find_func;
|
|
gpointer find_data;
|
|
};
|
|
|
|
static gboolean
|
|
find_view_func (GstVulkanImageView * view, gpointer user_data)
|
|
{
|
|
struct view_data *data = user_data;
|
|
GstVulkanImageMemory *previous;
|
|
gboolean ret;
|
|
|
|
previous = view->image;
|
|
view->image = data->img;
|
|
|
|
ret = data->find_func (view, data->find_data);
|
|
|
|
view->image = previous;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* gst_vulkan_image_memory_find_view:
|
|
* @image: a #GstVulkanImageMemory
|
|
* @find_func: (scope call): #GstVulkanImageMemoryFindViewFunc to search with
|
|
* @user_data: user data to call @finc_func with
|
|
*
|
|
* Return: (transfer full) (nullable): the first #GstVulkanImageView that
|
|
* @find_func returns %TRUE for, or %NULL
|
|
*
|
|
* Since: 1.18
|
|
*/
|
|
GstVulkanImageView *
|
|
gst_vulkan_image_memory_find_view (GstVulkanImageMemory * image,
|
|
GstVulkanImageMemoryFindViewFunc find_func, gpointer user_data)
|
|
{
|
|
GstVulkanImageView *ret = NULL;
|
|
struct view_data view;
|
|
guint index;
|
|
|
|
g_return_val_if_fail (gst_is_vulkan_image_memory (GST_MEMORY_CAST (image)),
|
|
NULL);
|
|
g_return_val_if_fail (find_func != NULL, NULL);
|
|
|
|
g_mutex_lock (&image->lock);
|
|
view.img = image;
|
|
view.find_func = find_func;
|
|
view.find_data = user_data;
|
|
|
|
if (g_ptr_array_find_with_equal_func (image->outstanding_views, &view,
|
|
(GEqualFunc) find_view_func, &index)) {
|
|
ret =
|
|
gst_vulkan_image_view_ref (g_ptr_array_index (image->outstanding_views,
|
|
index));
|
|
} else if (g_ptr_array_find_with_equal_func (image->views, &view,
|
|
(GEqualFunc) find_view_func, &index)) {
|
|
ret = g_ptr_array_steal_index_fast (image->views, index);
|
|
g_ptr_array_add (image->outstanding_views, ret);
|
|
ret->image = (GstVulkanImageMemory *) gst_memory_ref ((GstMemory *) image);
|
|
}
|
|
|
|
GST_CAT_TRACE (GST_CAT_VULKAN_IMAGE_MEMORY, "Image %p found view %p",
|
|
image, ret);
|
|
g_mutex_unlock (&image->lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
G_DEFINE_TYPE (GstVulkanImageMemoryAllocator, gst_vulkan_image_memory_allocator,
|
|
GST_TYPE_ALLOCATOR);
|
|
|
|
static void
|
|
gst_vulkan_image_memory_allocator_class_init (GstVulkanImageMemoryAllocatorClass
|
|
* klass)
|
|
{
|
|
GstAllocatorClass *allocator_class = (GstAllocatorClass *) klass;
|
|
|
|
allocator_class->alloc = _vk_image_mem_alloc;
|
|
allocator_class->free = _vk_image_mem_free;
|
|
}
|
|
|
|
static void
|
|
gst_vulkan_image_memory_allocator_init (GstVulkanImageMemoryAllocator *
|
|
allocator)
|
|
{
|
|
GstAllocator *alloc = GST_ALLOCATOR_CAST (allocator);
|
|
|
|
alloc->mem_type = GST_VULKAN_IMAGE_MEMORY_ALLOCATOR_NAME;
|
|
alloc->mem_map_full = (GstMemoryMapFullFunction) _vk_image_mem_map_full;
|
|
alloc->mem_unmap_full = (GstMemoryUnmapFullFunction) _vk_image_mem_unmap_full;
|
|
alloc->mem_copy = (GstMemoryCopyFunction) _vk_image_mem_copy;
|
|
alloc->mem_share = (GstMemoryShareFunction) _vk_image_mem_share;
|
|
alloc->mem_is_span = (GstMemoryIsSpanFunction) _vk_image_mem_is_span;
|
|
}
|
|
|
|
/**
|
|
* gst_vulkan_image_memory_init_once:
|
|
*
|
|
* Initializes the Vulkan image memory allocator. It is safe to call this function
|
|
* multiple times. This must be called before any other #GstVulkanImageMemory operation.
|
|
*
|
|
* Since: 1.18
|
|
*/
|
|
void
|
|
gst_vulkan_image_memory_init_once (void)
|
|
{
|
|
static gsize _init = 0;
|
|
|
|
if (g_once_init_enter (&_init)) {
|
|
GST_DEBUG_CATEGORY_INIT (GST_CAT_VULKAN_IMAGE_MEMORY, "vulkanimagememory",
|
|
0, "Vulkan Image Memory");
|
|
|
|
_vulkan_image_memory_allocator =
|
|
g_object_new (gst_vulkan_image_memory_allocator_get_type (), NULL);
|
|
gst_object_ref_sink (_vulkan_image_memory_allocator);
|
|
|
|
gst_allocator_register (GST_VULKAN_IMAGE_MEMORY_ALLOCATOR_NAME,
|
|
gst_object_ref (_vulkan_image_memory_allocator));
|
|
g_once_init_leave (&_init, 1);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_is_vulkan_image_memory:
|
|
* @mem: a #GstMemory
|
|
*
|
|
* Returns: whether the memory at @mem is a #GstVulkanImageMemory
|
|
*
|
|
* Since: 1.18
|
|
*/
|
|
gboolean
|
|
gst_is_vulkan_image_memory (GstMemory * mem)
|
|
{
|
|
return mem != NULL && mem->allocator != NULL &&
|
|
g_type_is_a (G_OBJECT_TYPE (mem->allocator),
|
|
GST_TYPE_VULKAN_IMAGE_MEMORY_ALLOCATOR);
|
|
}
|