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d3d11: d3d11utils: Add support for DXGI Adapter LUID based D3D11 device context sharing
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1098>
This commit is contained in:
Seungha Yang
parent
5ac7a21ef0
commit
98b82ef286
2 changed files with 147 additions and 7 deletions
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@ -66,12 +66,15 @@ _init_context_debug (void)
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* gst_d3d11_handle_set_context:
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* @element: a #GstElement
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* @context: a #GstContext
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* @adapter_index: a DXGI adapter index
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* @device: (inout) (transfer full): location of a #GstD3D11Device
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*
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* Helper function for implementing #GstElementClass.set_context() in
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* D3D11 capable elements.
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*
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* Retrieve's the #GstD3D11Device in @context and places the result in @device.
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* @device is accepted if @adapter_index is equal to -1 (accept any device)
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* or equal to that of @device
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*
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* Returns: whether the @device could be set successfully
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*
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@ -79,7 +82,7 @@ _init_context_debug (void)
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*/
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gboolean
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gst_d3d11_handle_set_context (GstElement * element, GstContext * context,
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gint adapter, GstD3D11Device ** device)
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gint adapter_index, GstD3D11Device ** device)
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{
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const gchar *context_type;
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@ -95,7 +98,7 @@ gst_d3d11_handle_set_context (GstElement * element, GstContext * context,
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if (g_strcmp0 (context_type, GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE) == 0) {
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const GstStructure *str;
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GstD3D11Device *other_device = NULL;
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guint other_adapter = 0;
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guint other_adapter_index = 0;
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/* If we had device already, will not replace it */
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if (*device)
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@ -104,8 +107,70 @@ gst_d3d11_handle_set_context (GstElement * element, GstContext * context,
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str = gst_context_get_structure (context);
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if (gst_structure_get (str, "device", GST_TYPE_D3D11_DEVICE,
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&other_device, "adapter", G_TYPE_UINT, &other_adapter, NULL)) {
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if (adapter == -1 || (guint) adapter == other_adapter) {
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&other_device, "adapter", G_TYPE_UINT, &other_adapter_index,
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NULL)) {
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if (adapter_index == -1 || (guint) adapter_index == other_adapter_index) {
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GST_CAT_DEBUG_OBJECT (GST_CAT_CONTEXT,
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element, "Found D3D11 device context");
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*device = other_device;
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return TRUE;
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}
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gst_object_unref (other_device);
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}
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}
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return FALSE;
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}
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/**
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* gst_d3d11_handle_set_context_for_adapter_luid:
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* @element: a #GstElement
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* @context: a #GstContext
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* @adapter_luid: an int64 representation of DXGI adapter LUID
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* @device: (inout) (transfer full): location of a #GstD3D11Device
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*
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* Helper function for implementing #GstElementClass.set_context() in
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* D3D11 capable elements.
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*
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* Retrieve's the #GstD3D11Device in @context and places the result in @device.
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* @device is accepted only when @adapter_index is equal to that of @device
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*
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* Returns: whether the @device could be set successfully
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*
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* Since: 1.20
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*/
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gboolean
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gst_d3d11_handle_set_context_for_adapter_luid (GstElement * element,
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GstContext * context, gint64 adapter_luid, GstD3D11Device ** device)
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{
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const gchar *context_type;
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g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
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g_return_val_if_fail (device != NULL, FALSE);
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_init_context_debug ();
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if (!context)
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return FALSE;
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context_type = gst_context_get_context_type (context);
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if (g_strcmp0 (context_type, GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE) == 0) {
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const GstStructure *str;
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GstD3D11Device *other_device = NULL;
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gint64 other_adapter_luid = 0;
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/* If we had device already, will not replace it */
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if (*device)
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return TRUE;
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str = gst_context_get_structure (context);
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if (gst_structure_get (str, "device", GST_TYPE_D3D11_DEVICE,
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&other_device, "adapter-luid", G_TYPE_INT64,
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&other_adapter_luid, NULL)) {
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if (adapter_luid == other_adapter_luid) {
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GST_CAT_DEBUG_OBJECT (GST_CAT_CONTEXT,
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element, "Found D3D11 device context");
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*device = other_device;
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@ -301,7 +366,7 @@ run_d3d11_context_query (GstElement * element, GstD3D11Device ** device)
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/**
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* gst_d3d11_ensure_element_data:
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* @element: the #GstElement running the query
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* @adapter: preferred adapter index, pass adapter >=0 when
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* @adapter: preferred DXGI adapter index, pass adapter >=0 when
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* the adapter explicitly required. Otherwise, set -1.
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* @device: (inout): the resulting #GstD3D11Device
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*
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@ -367,6 +432,70 @@ gst_d3d11_ensure_element_data (GstElement * element, gint adapter,
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return TRUE;
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}
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/**
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* gst_d3d11_ensure_element_data_for_adapter_luid:
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* @element: the #GstElement running the query
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* @adapter_luid: an int64 representation of DXGI adapter LUID
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* @device: (inout): the resulting #GstD3D11Device
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*
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* Perform the steps necessary for retrieving a #GstD3D11Device
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* from the surrounding elements or from the application using the #GstContext mechanism.
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*
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* If the contents of @device is not %NULL, then no #GstContext query is
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* necessary for #GstD3D11Device retrieval is performed.
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*
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* Returns: whether a #GstD3D11Device exists in @device
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*
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* Since: 1.20
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*/
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gboolean
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gst_d3d11_ensure_element_data_for_adapter_luid (GstElement * element,
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gint64 adapter_luid, GstD3D11Device ** device)
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{
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g_return_val_if_fail (element != NULL, FALSE);
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g_return_val_if_fail (device != NULL, FALSE);
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_init_context_debug ();
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if (*device) {
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GST_LOG_OBJECT (element, "already have a device %" GST_PTR_FORMAT, *device);
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return TRUE;
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}
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run_d3d11_context_query (element, device);
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if (*device)
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return TRUE;
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/* Needs D3D11_CREATE_DEVICE_BGRA_SUPPORT flag for Direct2D interop */
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*device = gst_d3d11_device_new_for_adapter_luid (adapter_luid,
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D3D11_CREATE_DEVICE_BGRA_SUPPORT);
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if (*device == NULL) {
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GST_ERROR_OBJECT (element,
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"Couldn't create new device with adapter luid %" G_GINT64_FORMAT,
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adapter_luid);
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return FALSE;
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} else {
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GstContext *context;
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GstMessage *msg;
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/* Propagate new D3D11 device context */
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context = gst_context_new (GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE, TRUE);
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context_set_d3d11_device (context, *device);
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gst_element_set_context (element, context);
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GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
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"posting have context (%p) message with D3D11 device context (%p)",
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context, *device);
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msg = gst_message_new_have_context (GST_OBJECT_CAST (element), context);
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gst_element_post_message (GST_ELEMENT_CAST (element), msg);
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}
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return TRUE;
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}
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/**
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* gst_d3d11_luid_to_int64:
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* @luid: A pointer to LUID struct
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@ -28,9 +28,15 @@ G_BEGIN_DECLS
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GST_D3D11_API
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gboolean gst_d3d11_handle_set_context (GstElement * element,
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GstContext * context,
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gint adapter,
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gint adapter_index,
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GstD3D11Device ** device);
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GST_D3D11_API
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gboolean gst_d3d11_handle_set_context_for_adapter_luid (GstElement * element,
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GstContext * context,
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gint64 adapter_luid,
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GstD3D11Device ** device);
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GST_D3D11_API
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gboolean gst_d3d11_handle_context_query (GstElement * element,
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GstQuery * query,
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@ -38,9 +44,14 @@ gboolean gst_d3d11_handle_context_query (GstElement * element,
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GST_D3D11_API
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gboolean gst_d3d11_ensure_element_data (GstElement * element,
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gint adapter,
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gint adapter_index,
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GstD3D11Device ** device);
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GST_D3D11_API
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gboolean gst_d3d11_ensure_element_data_for_adapter_luid (GstElement * element,
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gint64 adapter_luid,
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GstD3D11Device ** device);
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GST_D3D11_API
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gint64 gst_d3d11_luid_to_int64 (const LUID * luid);
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