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d3d11memory: Add support for keyed mutex

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Non-zero mutex key held by application is not considered for now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4081>
This commit is contained in:
Seungha Yang 2023-02-28 23:50:41 +09:00 committed by GStreamer Marge Bot
parent 2c265df99e
commit 69b2e1565c
1 changed files with 46 additions and 1 deletions
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47
subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11memory.cpp
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@ -336,6 +336,7 @@ struct _GstD3D11MemoryPrivate
ID3D11Texture2D *texture = nullptr;
ID3D11Buffer *buffer = nullptr;
IDXGIKeyedMutex *keyed_mutex = nullptr;
GstD3D11MemoryNativeType native_type = GST_D3D11_MEMORY_NATIVE_TYPE_INVALID;
@ -347,7 +348,8 @@ struct _GstD3D11MemoryPrivate
/* protected by device lock */
ID3D11Resource *staging = nullptr;
D3D11_MAPPED_SUBRESOURCE map;
gint cpu_map_count = 0;
guint64 cpu_map_count = 0;
guint64 gpu_map_count = 0;
/* protects resource objects */
SRWLOCK lock = SRWLOCK_INIT;
@ -453,14 +455,31 @@ gst_d3d11_memory_download (GstD3D11Memory * dmem)
{
GstD3D11MemoryPrivate *priv = dmem->priv;
ID3D11DeviceContext *device_context;
gboolean locked = FALSE;
if (!priv->staging ||
!GST_MEMORY_FLAG_IS_SET (dmem, GST_D3D11_MEMORY_TRANSFER_NEED_DOWNLOAD))
return;
if (priv->keyed_mutex && priv->gpu_map_count == 0) {
HRESULT hr;
GST_LOG_OBJECT (GST_MEMORY_CAST (dmem)->allocator, "Acquiring sync");
hr = priv->keyed_mutex->AcquireSync (0, INFINITE);
if (hr != S_OK) {
GST_ERROR_OBJECT (GST_MEMORY_CAST (dmem)->allocator,
"Couldn't acquire sync, error 0x%x", (guint) hr);
return;
}
locked = TRUE;
}
device_context = gst_d3d11_device_get_device_context_handle (dmem->device);
device_context->CopySubresourceRegion (priv->staging, 0, 0, 0, 0,
priv->texture, priv->subresource_index, NULL);
if (locked)
priv->keyed_mutex->ReleaseSync (0);
}
static gpointer
@ -480,6 +499,19 @@ gst_d3d11_memory_map_full (GstMemory * mem, GstMapInfo * info, gsize maxsize)
g_assert (priv->buffer != nullptr);
return priv->buffer;
} else {
if (priv->keyed_mutex && priv->gpu_map_count == 0) {
HRESULT hr;
GST_LOG_OBJECT (mem->allocator, "Acquiring sync");
hr = priv->keyed_mutex->AcquireSync (0, INFINITE);
if (hr != S_OK) {
GST_ERROR_OBJECT (mem->allocator,
"Couldn't acquire sync, hr: 0x%x", (guint) hr);
return nullptr;
}
}
priv->gpu_map_count++;
gst_d3d11_memory_upload (dmem);
GST_MEMORY_FLAG_UNSET (dmem, GST_D3D11_MEMORY_TRANSFER_NEED_UPLOAD);
@ -552,12 +584,21 @@ gst_d3d11_memory_unmap_full (GstMemory * mem, GstMapInfo * info)
if ((info->flags & GST_MAP_WRITE) == GST_MAP_WRITE)
GST_MINI_OBJECT_FLAG_SET (mem, GST_D3D11_MEMORY_TRANSFER_NEED_DOWNLOAD);
g_assert (priv->gpu_map_count != 0);
if (priv->keyed_mutex && priv->gpu_map_count == 1) {
GST_LOG_OBJECT (mem->allocator, "Release sync");
priv->keyed_mutex->ReleaseSync (0);
}
priv->gpu_map_count--;
return;
}
if ((info->flags & GST_MAP_WRITE) == GST_MAP_WRITE)
GST_MINI_OBJECT_FLAG_SET (mem, GST_D3D11_MEMORY_TRANSFER_NEED_UPLOAD);
g_assert (priv->cpu_map_count != 0);
priv->cpu_map_count--;
if (priv->cpu_map_count > 0)
return;
@ -1490,6 +1531,8 @@ gst_d3d11_allocator_free (GstAllocator * allocator, GstMemory * mem)
dmem_priv->token_map.clear ();
GST_D3D11_CLEAR_COM (dmem_priv->keyed_mutex);
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
GST_D3D11_CLEAR_COM (dmem_priv->render_target_view[i]);
GST_D3D11_CLEAR_COM (dmem_priv->shader_resource_view[i]);
@ -1527,6 +1570,8 @@ gst_d3d11_allocator_alloc_wrapped_internal (GstD3D11Allocator * self,
gst_memory_init (GST_MEMORY_CAST (mem),
(GstMemoryFlags) 0, GST_ALLOCATOR_CAST (self), NULL, 0, 0, 0, 0);
mem->priv->texture = texture;
if ((desc->MiscFlags & D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX) != 0)
texture->QueryInterface (IID_PPV_ARGS (&mem->priv->keyed_mutex));
mem->priv->desc = *desc;
mem->priv->native_type = GST_D3D11_MEMORY_NATIVE_TYPE_TEXTURE_2D;
mem->device = (GstD3D11Device *) gst_object_ref (device);