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

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/*
* GStreamer
* Copyright (C) 2015 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 "gstvkimagememory.h"
/**
* SECTION:vkimagememory
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* @title: GstVulkanImageMemory
* @short_description: memory subclass for Vulkan image memory
* @see_also: #GstMemory, #GstAllocator
*
* GstVulkanImageMemory is a #GstMemory subclass providing support for the
* mapping of Vulkan device memory.
*/
#define GST_CAT_DEFUALT GST_CAT_VULKAN_IMAGE_MEMORY
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFUALT);
static GstAllocator *_vulkan_image_memory_allocator;
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/**
* gst_vulkan_format_from_video_info: (skip)
* @v_info: the #GstVideoInfo
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* @plane: the plane
*
* Returns: the VkFormat to use for @v_format and @plane
*
* Since: 1.18
*/
VkFormat
gst_vulkan_format_from_video_info (GstVideoInfo * v_info, guint plane)
{
guint n_plane_components;
switch (GST_VIDEO_INFO_FORMAT (v_info)) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
if (GST_VIDEO_INFO_COLORIMETRY (v_info).transfer ==
GST_VIDEO_TRANSFER_SRGB)
return VK_FORMAT_R8G8B8A8_UNORM;
else
return VK_FORMAT_R8G8B8A8_SRGB;
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
if (GST_VIDEO_INFO_COLORIMETRY (v_info).transfer ==
GST_VIDEO_TRANSFER_SRGB)
return VK_FORMAT_B8G8R8A8_UNORM;
else
return VK_FORMAT_B8G8R8A8_SRGB;
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_ABGR:
if (GST_VIDEO_INFO_COLORIMETRY (v_info).transfer ==
GST_VIDEO_TRANSFER_SRGB)
n_plane_components = 4;
else
return VK_FORMAT_UNDEFINED;
case GST_VIDEO_FORMAT_AYUV:
n_plane_components = 4;
break;
case GST_VIDEO_FORMAT_RGB:
return VK_FORMAT_R8G8B8_UNORM;
case GST_VIDEO_FORMAT_BGR:
return VK_FORMAT_B8G8R8_UNORM;
break;
case GST_VIDEO_FORMAT_RGB16:
return VK_FORMAT_R5G6B5_UNORM_PACK16;
case GST_VIDEO_FORMAT_BGR16:
return VK_FORMAT_B5G6R5_UNORM_PACK16;
case GST_VIDEO_FORMAT_GRAY16_BE:
case GST_VIDEO_FORMAT_GRAY16_LE:
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
n_plane_components = 2;
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
n_plane_components = plane == 0 ? 1 : 2;
break;
case GST_VIDEO_FORMAT_GRAY8:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
n_plane_components = 1;
break;
default:
n_plane_components = 4;
g_assert_not_reached ();
break;
}
switch (n_plane_components) {
case 4:
return VK_FORMAT_R8G8B8A8_UNORM;
case 2:
return VK_FORMAT_R8G8_UNORM;
case 1:
return VK_FORMAT_R8_UNORM;
default:
g_assert_not_reached ();
return VK_FORMAT_R8G8B8A8_UNORM;
}
}
static gboolean
_create_info_from_args (VkImageCreateInfo * info, VkFormat format, gsize width,
gsize height, VkImageTiling tiling, VkImageUsageFlags usage)
{
/* FIXME: validate these */
/* *INDENT-OFF* */
*info = (VkImageCreateInfo) {
.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.imageType = VK_IMAGE_TYPE_2D,
.format = format,
.extent = (VkExtent3D) { width, height, 1 },
.mipLevels = 1,
.arrayLayers = 1,
.samples = VK_SAMPLE_COUNT_1_BIT,
.tiling = tiling,
.usage = usage,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
.queueFamilyIndexCount = 0,
.pQueueFamilyIndices = NULL,
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
};
/* *INDENT-ON* */
return TRUE;
}
gboolean
gst_vulkan_image_memory_init (GstVulkanImageMemory * mem,
GstAllocator * allocator, GstMemory * parent, GstVulkanDevice * device,
VkImageUsageFlags usage, GstAllocationParams * params, gsize size,
gpointer user_data, GDestroyNotify notify)
{
gsize align = gst_memory_alignment, offset = 0, maxsize = size;
GstMemoryFlags flags = 0;
if (params) {
flags = params->flags;
align |= params->align;
offset = params->prefix;
maxsize += params->prefix + params->padding + align;
}
gst_memory_init (GST_MEMORY_CAST (mem), flags, allocator, parent, maxsize,
align, offset, size);
mem->device = gst_object_ref (device);
mem->barrier.parent.type = GST_VULKAN_BARRIER_TYPE_IMAGE;
mem->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
mem->barrier.parent.access_flags = 0;
mem->barrier.image_layout = VK_IMAGE_LAYOUT_UNDEFINED;
/* *INDENT-OFF* */
mem->barrier.subresource_range = (VkImageSubresourceRange) {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.baseMipLevel = 0,
.levelCount = 1,
.baseArrayLayer = 0,
.layerCount = 1,
};
/* *INDENT-ON* */
mem->usage = usage;
mem->wrapped = FALSE;
mem->notify = notify;
mem->user_data = user_data;
g_mutex_init (&mem->lock);
mem->views = g_ptr_array_new ();
mem->outstanding_views = g_ptr_array_new ();
GST_CAT_DEBUG (GST_CAT_VULKAN_IMAGE_MEMORY,
"new Vulkan Image memory:%p size:%" G_GSIZE_FORMAT, mem, maxsize);
return TRUE;
}
static GstVulkanImageMemory *
_vk_image_mem_new_alloc (GstAllocator * allocator, GstMemory * parent,
GstVulkanDevice * device, VkFormat format, gsize width, gsize height,
VkImageTiling tiling, VkImageUsageFlags usage,
VkMemoryPropertyFlags mem_prop_flags, gpointer user_data,
GDestroyNotify notify)
{
GstVulkanImageMemory *mem = NULL;
GstAllocationParams params = { 0, };
VkImageCreateInfo image_info;
VkPhysicalDevice gpu;
GError *error = NULL;
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guint32 type_idx;
VkImage image;
VkResult err;
gpu = gst_vulkan_device_get_physical_device (device);
if (!_create_info_from_args (&image_info, format, width, height, tiling,
usage)) {
GST_CAT_ERROR (GST_CAT_VULKAN_IMAGE_MEMORY, "Incorrect image parameters");
goto error;
}
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err = vkCreateImage (device->device, &image_info, NULL, &image);
if (gst_vulkan_error_to_g_error (err, &error, "vkCreateImage") < 0)
goto vk_error;
mem = g_new0 (GstVulkanImageMemory, 1);
vkGetImageMemoryRequirements (device->device, image, &mem->requirements);
gst_vulkan_image_memory_init (mem, allocator, parent, device, usage, &params,
mem->requirements.size, user_data, notify);
mem->create_info = image_info;
mem->image = image;
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err = vkGetPhysicalDeviceImageFormatProperties (gpu, format, VK_IMAGE_TYPE_2D,
tiling, usage, 0, &mem->format_properties);
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if (gst_vulkan_error_to_g_error (err, &error,
"vkGetPhysicalDeviceImageFormatProperties") < 0)
goto vk_error;
if (!gst_vulkan_memory_find_memory_type_index_with_type_properties (device,
mem->requirements.memoryTypeBits, mem_prop_flags, &type_idx))
goto error;
if ((mem->requirements.alignment & (mem->requirements.alignment - 1)) != 0) {
g_set_error_literal (&error, GST_VULKAN_ERROR, GST_VULKAN_FAILED,
"Vulkan implementation requires unsupported non-power-of 2 memory alignment");
goto error;
}
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params.align = mem->requirements.alignment - 1;
mem->vk_mem = (GstVulkanMemory *) gst_vulkan_memory_alloc (device, type_idx,
&params, mem->requirements.size, mem_prop_flags);
if (!mem->vk_mem)
goto error;
err = vkBindImageMemory (device->device, image, mem->vk_mem->mem_ptr, 0);
if (gst_vulkan_error_to_g_error (err, &error, "vkBindImageMemory") < 0)
goto vk_error;
return mem;
vk_error:
{
GST_CAT_ERROR (GST_CAT_VULKAN_IMAGE_MEMORY,
"Failed to allocate image memory %s", error->message);
g_clear_error (&error);
goto error;
}
error:
{
if (mem)
gst_memory_unref ((GstMemory *) mem);
return NULL;
}
}
static GstVulkanImageMemory *
_vk_image_mem_new_wrapped (GstAllocator * allocator, GstMemory * parent,
GstVulkanDevice * device, VkImage image, VkFormat format, gsize width,
gsize height, VkImageTiling tiling, VkImageUsageFlags usage,
gpointer user_data, GDestroyNotify notify)
{
GstVulkanImageMemory *mem = g_new0 (GstVulkanImageMemory, 1);
GstAllocationParams params = { 0, };
VkPhysicalDevice gpu;
GError *error = NULL;
VkResult err;
gpu = gst_vulkan_device_get_physical_device (device);
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 */
params.align = mem->requirements.alignment - 1;
params.flags = GST_MEMORY_FLAG_NOT_MAPPABLE;
gst_vulkan_image_memory_init (mem, allocator, parent, device, usage, &params,
mem->requirements.size, user_data, notify);
mem->wrapped = TRUE;
if (!_create_info_from_args (&mem->create_info, format, width, height, tiling,
usage)) {
GST_CAT_ERROR (GST_CAT_VULKAN_IMAGE_MEMORY, "Incorrect image parameters");
goto error;
}
err = vkGetPhysicalDeviceImageFormatProperties (gpu, format, VK_IMAGE_TYPE_2D,
tiling, usage, 0, &mem->format_properties);
if (gst_vulkan_error_to_g_error (err, &error,
"vkGetPhysicalDeviceImageFormatProperties") < 0)
goto vk_error;
return mem;
vk_error:
{
GST_CAT_ERROR (GST_CAT_VULKAN_IMAGE_MEMORY,
"Failed to allocate image memory %s", error->message);
g_clear_error (&error);
goto error;
}
error:
{
gst_memory_unref ((GstMemory *) mem);
return NULL;
}
}
static gpointer
_vk_image_mem_map_full (GstVulkanImageMemory * mem, GstMapInfo * info,
gsize size)
{
GstMapInfo *vk_map_info;
/* FIXME: possible layout transformation needed */
g_mutex_lock (&mem->lock);
if (!mem->vk_mem) {
g_mutex_unlock (&mem->lock);
return NULL;
}
vk_map_info = g_new0 (GstMapInfo, 1);
info->user_data[0] = vk_map_info;
if (!gst_memory_map ((GstMemory *) mem->vk_mem, vk_map_info, info->flags)) {
g_free (vk_map_info);
g_mutex_unlock (&mem->lock);
return NULL;
}
g_mutex_unlock (&mem->lock);
return vk_map_info->data;
}
static void
_vk_image_mem_unmap_full (GstVulkanImageMemory * mem, GstMapInfo * info)
{
g_mutex_lock (&mem->lock);
gst_memory_unmap ((GstMemory *) mem->vk_mem, info->user_data[0]);
g_mutex_unlock (&mem->lock);
g_free (info->user_data[0]);
}
static GstMemory *
_vk_image_mem_copy (GstVulkanImageMemory * src, gssize offset, gssize size)
{
return NULL;
}
static GstMemory *
_vk_image_mem_share (GstVulkanImageMemory * mem, gssize offset, gssize size)
{
return NULL;
}
static gboolean
_vk_image_mem_is_span (GstVulkanImageMemory * mem1, GstVulkanImageMemory * mem2,
gsize * offset)
{
return FALSE;
}
static GstMemory *
_vk_image_mem_alloc (GstAllocator * allocator, gsize size,
GstAllocationParams * params)
{
g_critical ("Subclass should override GstAllocatorClass::alloc() function");
return NULL;
}
static void
_free_view (GstVulkanImageView * view, gpointer unused)
{
gst_vulkan_image_view_unref (view);
}
static void
_vk_image_mem_free (GstAllocator * allocator, GstMemory * memory)
{
GstVulkanImageMemory *mem = (GstVulkanImageMemory *) memory;
GST_CAT_TRACE (GST_CAT_VULKAN_IMAGE_MEMORY, "freeing image memory:%p "
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"id:%" G_GUINT64_FORMAT, mem, (guint64) mem->image);
g_warn_if_fail (mem->outstanding_views->len == 0);
g_ptr_array_unref (mem->outstanding_views);
g_ptr_array_foreach (mem->views, (GFunc) _free_view, NULL);
g_ptr_array_unref (mem->views);
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if (mem->image && !mem->wrapped)
vkDestroyImage (mem->device->device, mem->image, NULL);
if (mem->vk_mem)
gst_memory_unref ((GstMemory *) mem->vk_mem);
if (mem->notify)
mem->notify (mem->user_data);
gst_object_unref (mem->device);
g_free (mem);
}
/**
* gst_vulkan_image_memory_alloc:
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* @device: a #GstVulkanDevice
* @format: the VkFormat for the new image
* @width: width for the new image
* @height: height for the new image
* @tiling: tiling for the new image
* @usage: usage flags for the new image
* @mem_prop_flags: VkDeviceMemory property flags for the new image
*
* Allocated a new #GstVulkanImageMemory.
*
* Returns: a #GstMemory object backed by a vulkan device memory
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*
* Since: 1.18
*/
GstMemory *
gst_vulkan_image_memory_alloc (GstVulkanDevice * device, VkFormat format,
gsize width, gsize height, VkImageTiling tiling, VkImageUsageFlags usage,
VkMemoryPropertyFlags mem_prop_flags)
{
GstVulkanImageMemory *mem;
mem = _vk_image_mem_new_alloc (_vulkan_image_memory_allocator, NULL, device,
format, width, height, tiling, usage, mem_prop_flags, NULL, NULL);
return (GstMemory *) mem;
}
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/**
* gst_vulkan_image_memory_wrapped:
* @device: a #GstVulkanDevice
* @image: a VkImage
* @format: the VkFormat for @image
* @width: width of @image
* @height: height of @image
* @tiling: tiling of @image
* @usage: usage flags of @image
* @user_data: (nullable): user data for @notify
* @notify: a #DestroyNotify when @image is no longer needed
*
* Return: a new #GstVulkanImageMemory wrapping @image
*
* Since: 1.18
*/
GstMemory *
gst_vulkan_image_memory_wrapped (GstVulkanDevice * device, VkImage image,
VkFormat format, gsize width, gsize height, VkImageTiling tiling,
VkImageUsageFlags usage, gpointer user_data, GDestroyNotify notify)
{
GstVulkanImageMemory *mem;
mem = _vk_image_mem_new_wrapped (_vulkan_image_memory_allocator, NULL, device,
image, format, width, height, tiling, usage, user_data, notify);
return (GstMemory *) mem;
}
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/**
* gst_vulkan_image_memory_get_width:
* @image: a #GstVulkanImageMemory
*
* Return: the width of @image
*
* Since: 1.18
*/
guint32
gst_vulkan_image_memory_get_width (GstVulkanImageMemory * image)
{
g_return_val_if_fail (gst_is_vulkan_image_memory (GST_MEMORY_CAST (image)),
0);
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)) {
/* really g_ptr_array_steal_index_fast() but that requires glib 2.58 */
g_ptr_array_remove_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
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* @find_func: (scope call): #GstVulkanImageMemoryFindViewFunc to search with
* @user_data: user data to call @finc_func with
*
* Return: (transfer full): the first #GstVulkanImageView that @find_func
* returns %TRUE for, or %NULL
*
* Since: 1.18
*/
GstVulkanImageView *
gst_vulkan_image_memory_find_view (GstVulkanImageMemory * image,
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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;
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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)) {
/* really g_ptr_array_steal_index_fast() but that requires glib 2.58 */
ret = g_ptr_array_remove_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:
*
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* Initializes the Vulkan image memory allocator. It is safe to call this function
* multiple times. This must be called before any other #GstVulkanImageMemory operation.
2019-04-11 06:52:54 +00:00
*
* Since: 1.18
*/
void
gst_vulkan_image_memory_init_once (void)
{
static volatile 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:
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* @mem: a #GstMemory
*
* Returns: whether the memory at @mem is a #GstVulkanImageMemory
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*
* 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);
}