mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-07-03 21:25:54 +00:00
Code Issues 1 Projects Releases Wiki Activity

d3d11: d3d11utils: Add support for DXGI Adapter LUID based D3D11 device context sharing

Browse source 
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1098>
This commit is contained in:
Seungha Yang 2021-10-08 21:39:44 +09:00
parent 5ac7a21ef0
commit 98b82ef286
2 changed files with 147 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

139
subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11utils.cpp
View file

@ -66,12 +66,15 @@ _init_context_debug (void)
* gst_d3d11_handle_set_context:
* @element: a #GstElement
* @context: a #GstContext
* @adapter_index: a DXGI adapter index
* @device: (inout) (transfer full): location of a #GstD3D11Device
*
* Helper function for implementing #GstElementClass.set_context() in
* D3D11 capable elements.
*
* Retrieve's the #GstD3D11Device in @context and places the result in @device.
* @device is accepted if @adapter_index is equal to -1 (accept any device)
* or equal to that of @device
*
* Returns: whether the @device could be set successfully
*
@ -79,7 +82,7 @@ _init_context_debug (void)
*/
gboolean
gst_d3d11_handle_set_context (GstElement * element, GstContext * context,
gint adapter, GstD3D11Device ** device)
gint adapter_index, GstD3D11Device ** device)
{
const gchar *context_type;
@ -95,7 +98,7 @@ gst_d3d11_handle_set_context (GstElement * element, GstContext * context,
if (g_strcmp0 (context_type, GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE) == 0) {
const GstStructure *str;
GstD3D11Device *other_device = NULL;
guint other_adapter = 0;
guint other_adapter_index = 0;
/* If we had device already, will not replace it */
if (*device)
@ -104,8 +107,70 @@ gst_d3d11_handle_set_context (GstElement * element, GstContext * context,
str = gst_context_get_structure (context);
if (gst_structure_get (str, "device", GST_TYPE_D3D11_DEVICE,
&other_device, "adapter", G_TYPE_UINT, &other_adapter, NULL)) {
if (adapter == -1 || (guint) adapter == other_adapter) {
&other_device, "adapter", G_TYPE_UINT, &other_adapter_index,
NULL)) {
if (adapter_index == -1 || (guint) adapter_index == other_adapter_index) {
GST_CAT_DEBUG_OBJECT (GST_CAT_CONTEXT,
element, "Found D3D11 device context");
*device = other_device;
return TRUE;
}
gst_object_unref (other_device);
}
}
return FALSE;
}
/**
* gst_d3d11_handle_set_context_for_adapter_luid:
* @element: a #GstElement
* @context: a #GstContext
* @adapter_luid: an int64 representation of DXGI adapter LUID
* @device: (inout) (transfer full): location of a #GstD3D11Device
*
* Helper function for implementing #GstElementClass.set_context() in
* D3D11 capable elements.
*
* Retrieve's the #GstD3D11Device in @context and places the result in @device.
* @device is accepted only when @adapter_index is equal to that of @device
*
* Returns: whether the @device could be set successfully
*
* Since: 1.20
*/
gboolean
gst_d3d11_handle_set_context_for_adapter_luid (GstElement * element,
GstContext * context, gint64 adapter_luid, GstD3D11Device ** device)
{
const gchar *context_type;
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (device != NULL, FALSE);
_init_context_debug ();
if (!context)
return FALSE;
context_type = gst_context_get_context_type (context);
if (g_strcmp0 (context_type, GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE) == 0) {
const GstStructure *str;
GstD3D11Device *other_device = NULL;
gint64 other_adapter_luid = 0;
/* If we had device already, will not replace it */
if (*device)
return TRUE;
str = gst_context_get_structure (context);
if (gst_structure_get (str, "device", GST_TYPE_D3D11_DEVICE,
&other_device, "adapter-luid", G_TYPE_INT64,
&other_adapter_luid, NULL)) {
if (adapter_luid == other_adapter_luid) {
GST_CAT_DEBUG_OBJECT (GST_CAT_CONTEXT,
element, "Found D3D11 device context");
*device = other_device;
@ -301,7 +366,7 @@ run_d3d11_context_query (GstElement * element, GstD3D11Device ** device)
/**
* gst_d3d11_ensure_element_data:
* @element: the #GstElement running the query
* @adapter: preferred adapter index, pass adapter >=0 when
* @adapter: preferred DXGI adapter index, pass adapter >=0 when
* the adapter explicitly required. Otherwise, set -1.
* @device: (inout): the resulting #GstD3D11Device
*
@ -367,6 +432,70 @@ gst_d3d11_ensure_element_data (GstElement * element, gint adapter,
return TRUE;
}
/**
* gst_d3d11_ensure_element_data_for_adapter_luid:
* @element: the #GstElement running the query
* @adapter_luid: an int64 representation of DXGI adapter LUID
* @device: (inout): the resulting #GstD3D11Device
*
* Perform the steps necessary for retrieving a #GstD3D11Device
* from the surrounding elements or from the application using the #GstContext mechanism.
*
* If the contents of @device is not %NULL, then no #GstContext query is
* necessary for #GstD3D11Device retrieval is performed.
*
* Returns: whether a #GstD3D11Device exists in @device
*
* Since: 1.20
*/
gboolean
gst_d3d11_ensure_element_data_for_adapter_luid (GstElement * element,
gint64 adapter_luid, GstD3D11Device ** device)
{
g_return_val_if_fail (element != NULL, FALSE);
g_return_val_if_fail (device != NULL, FALSE);
_init_context_debug ();
if (*device) {
GST_LOG_OBJECT (element, "already have a device %" GST_PTR_FORMAT, *device);
return TRUE;
}
run_d3d11_context_query (element, device);
if (*device)
return TRUE;
/* Needs D3D11_CREATE_DEVICE_BGRA_SUPPORT flag for Direct2D interop */
*device = gst_d3d11_device_new_for_adapter_luid (adapter_luid,
D3D11_CREATE_DEVICE_BGRA_SUPPORT);
if (*device == NULL) {
GST_ERROR_OBJECT (element,
"Couldn't create new device with adapter luid %" G_GINT64_FORMAT,
adapter_luid);
return FALSE;
} else {
GstContext *context;
GstMessage *msg;
/* Propagate new D3D11 device context */
context = gst_context_new (GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE, TRUE);
context_set_d3d11_device (context, *device);
gst_element_set_context (element, context);
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"posting have context (%p) message with D3D11 device context (%p)",
context, *device);
msg = gst_message_new_have_context (GST_OBJECT_CAST (element), context);
gst_element_post_message (GST_ELEMENT_CAST (element), msg);
}
return TRUE;
}
/**
* gst_d3d11_luid_to_int64:
* @luid: A pointer to LUID struct

15
subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11utils.h
View file

@ -28,9 +28,15 @@ G_BEGIN_DECLS
GST_D3D11_API
gboolean gst_d3d11_handle_set_context (GstElement * element,
GstContext * context,
gint adapter,
gint adapter_index,
GstD3D11Device ** device);
GST_D3D11_API
gboolean gst_d3d11_handle_set_context_for_adapter_luid (GstElement * element,
GstContext * context,
gint64 adapter_luid,
GstD3D11Device ** device);
GST_D3D11_API
gboolean gst_d3d11_handle_context_query (GstElement * element,
GstQuery * query,
@ -38,9 +44,14 @@ gboolean gst_d3d11_handle_context_query (GstElement * element,
GST_D3D11_API
gboolean gst_d3d11_ensure_element_data (GstElement * element,
gint adapter,
gint adapter_index,
GstD3D11Device ** device);
GST_D3D11_API
gboolean gst_d3d11_ensure_element_data_for_adapter_luid (GstElement * element,
gint64 adapter_luid,
GstD3D11Device ** device);
GST_D3D11_API
gint64 gst_d3d11_luid_to_int64 (const LUID * luid);