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d3d11memory: Add a method for querying texture array size

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... and the number of textures in use.

Direct3D11 texture array is usually used for decoder DPB pool,
and d3d11 decoder elements might want to know
whether there's available texture resource or not.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2003>
This commit is contained in:
Seungha Yang 2021-02-02 19:10:13 +09:00 committed by GStreamer Merge Bot
parent 327ad84e35
commit 12baab442c
2 changed files with 53 additions and 0 deletions
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48
gst-libs/gst/d3d11/gstd3d11memory.c
View file

@ -280,6 +280,10 @@ struct _GstD3D11AllocatorPrivate
GArray *decoder_output_view_array;
GArray *processor_input_view_array;
/* Count the number of array textures in use */
guint num_array_textures_in_use;
guint array_texture_size;
GMutex lock;
GCond cond;
@ -551,6 +555,7 @@ gst_d3d11_allocator_free (GstAllocator * allocator, GstMemory * mem)
GST_D3D11_ALLOCATOR_LOCK (self);
g_array_index (priv->array_in_use,
guint8, dmem_priv->subresource_index) = 0;
priv->num_array_textures_in_use--;
g_cond_broadcast (&priv->cond);
GST_D3D11_ALLOCATOR_UNLOCK (self);
}
@ -650,6 +655,7 @@ gst_d3d11_allocator_init (GstD3D11Allocator * allocator)
priv = gst_d3d11_allocator_get_instance_private (allocator);
g_mutex_init (&priv->lock);
g_cond_init (&priv->cond);
priv->array_texture_size = 1;
allocator->priv = priv;
}
@ -964,6 +970,8 @@ gst_d3d11_allocator_alloc (GstD3D11Allocator * allocator,
TRUE, sizeof (guint8), desc->ArraySize);
g_array_set_size (priv->array_in_use, desc->ArraySize);
priv->array_texture_size = desc->ArraySize;
if ((desc->BindFlags & D3D11_BIND_DECODER) == D3D11_BIND_DECODER &&
!priv->decoder_output_view_array) {
priv->decoder_output_view_array = g_array_sized_new (FALSE,
@ -997,6 +1005,7 @@ gst_d3d11_allocator_alloc (GstD3D11Allocator * allocator,
}
g_array_index (priv->array_in_use, guint8, index_to_use) = 1;
priv->num_array_textures_in_use++;
GST_D3D11_ALLOCATOR_UNLOCK (allocator);
@ -1133,6 +1142,45 @@ gst_d3d11_allocator_set_flushing (GstD3D11Allocator * allocator,
GST_D3D11_ALLOCATOR_UNLOCK (allocator);
}
/**
* gst_d3d11_allocator_get_texture_array_size:
* @allocator: a #GstD3D11Allocator
* @array_size: (out) (optional): the size of texture array
* @num_texture_in_use: (out) (optional): the number of textures in use
*
* Returns: %TRUE if the size of texture array is known
*
* Since: 1.20
*/
gboolean
gst_d3d11_allocator_get_texture_array_size (GstD3D11Allocator * allocator,
guint * array_size, guint * num_texture_in_use)
{
GstD3D11AllocatorPrivate *priv;
g_return_val_if_fail (GST_IS_D3D11_ALLOCATOR (allocator), FALSE);
priv = allocator->priv;
/* For non-array-texture memory, the size is 1 */
if (array_size)
*array_size = 1;
if (num_texture_in_use)
*num_texture_in_use = priv->array_texture_size;
/* size == 1 means we are not texture pool allocator */
if (priv->array_texture_size == 1)
return TRUE;
if (num_texture_in_use) {
GST_D3D11_ALLOCATOR_LOCK (allocator);
*num_texture_in_use = priv->array_texture_size;
GST_D3D11_ALLOCATOR_UNLOCK (allocator);
}
return TRUE;
}
/**
* gst_is_d3d11_memory:
* @mem: a #GstMemory

5
gst-libs/gst/d3d11/gstd3d11memory.h
View file

@ -168,6 +168,11 @@ GstMemory * gst_d3d11_allocator_alloc_staging (GstD3D11Allocator * alloc
GstD3D11AllocationFlags flags,
gint * stride);
GST_D3D11_API
gboolean gst_d3d11_allocator_get_texture_array_size (GstD3D11Allocator * allocator,
guint * array_size,
guint * num_texture_in_use);
GST_D3D11_API
void gst_d3d11_allocator_set_flushing (GstD3D11Allocator * allocator,
gboolean flushing);