mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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644 lines
18 KiB
C++
644 lines
18 KiB
C++
/* GStreamer
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* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstd3d11utils.h"
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#include "gstd3d11device.h"
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#include "gstd3d11-private.h"
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#include <windows.h>
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#include <versionhelpers.h>
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#include <mutex>
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#include <atomic>
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/**
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* SECTION:gstd3d11utils
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* @title: GstD3D11Utils
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* @short_description: Direct3D11 specific utility methods
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*
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* Since: 1.22
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*/
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/* *INDENT-OFF* */
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static std::recursive_mutex _context_lock;
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/* *INDENT-ON* */
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_CONTEXT);
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#ifndef GST_DISABLE_GST_DEBUG
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#define GST_CAT_DEFAULT ensure_debug_category()
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static GstDebugCategory *
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ensure_debug_category (void)
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{
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static GstDebugCategory *cat = nullptr;
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GST_D3D11_CALL_ONCE_BEGIN {
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cat = _gst_debug_category_new ("d3d11utils", 0, "d3d11 utility functions");
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} GST_D3D11_CALL_ONCE_END;
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return cat;
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}
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#else
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#define ensure_debug_category() /* NOOP */
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#endif /* GST_DISABLE_GST_DEBUG */
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static void
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_init_context_debug (void)
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{
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GST_D3D11_CALL_ONCE_BEGIN {
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GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT");
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} GST_D3D11_CALL_ONCE_END;
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}
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/**
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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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* Since: 1.22
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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_index, 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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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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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", 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: 1.22
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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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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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static void
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context_set_d3d11_device (GstContext * context, GstD3D11Device * device)
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{
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GstStructure *s;
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guint adapter = 0;
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guint device_id = 0;
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guint vendor_id = 0;
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gboolean hardware = FALSE;
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gchar *desc = NULL;
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gint64 adapter_luid = 0;
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g_return_if_fail (context != NULL);
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g_object_get (G_OBJECT (device), "adapter", &adapter, "device-id", &device_id,
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"vendor-id", &vendor_id, "hardware", &hardware, "description", &desc,
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"adapter-luid", &adapter_luid, NULL);
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GST_CAT_LOG (GST_CAT_CONTEXT,
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"setting GstD3D11Device(%" GST_PTR_FORMAT
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") with adapter %d on context(%" GST_PTR_FORMAT ")",
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device, adapter, context);
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s = gst_context_writable_structure (context);
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gst_structure_set (s, "device", GST_TYPE_D3D11_DEVICE, device,
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"adapter", G_TYPE_UINT, adapter,
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"adapter-luid", G_TYPE_INT64, adapter_luid,
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"device-id", G_TYPE_UINT, device_id,
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"vendor-id", G_TYPE_UINT, vendor_id,
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"hardware", G_TYPE_BOOLEAN, hardware,
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"description", G_TYPE_STRING, GST_STR_NULL (desc), NULL);
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g_free (desc);
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}
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/**
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* gst_d3d11_handle_context_query:
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* @element: a #GstElement
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* @query: a #GstQuery of type %GST_QUERY_CONTEXT
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* @device: (transfer none) (nullable): a #GstD3D11Device
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*
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* Returns: Whether the @query was successfully responded to from the passed
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* @device.
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*
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* Since: 1.22
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*/
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gboolean
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gst_d3d11_handle_context_query (GstElement * element, GstQuery * query,
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GstD3D11Device * device)
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{
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const gchar *context_type;
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GstContext *context, *old_context;
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g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
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g_return_val_if_fail (GST_IS_QUERY (query), FALSE);
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_init_context_debug ();
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GST_LOG_OBJECT (element, "handle context query %" GST_PTR_FORMAT, query);
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if (!device)
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return FALSE;
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gst_query_parse_context_type (query, &context_type);
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if (g_strcmp0 (context_type, GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE) != 0)
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return FALSE;
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gst_query_parse_context (query, &old_context);
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if (old_context)
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context = gst_context_copy (old_context);
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else
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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_query_set_context (query, context);
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gst_context_unref (context);
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GST_DEBUG_OBJECT (element, "successfully set %" GST_PTR_FORMAT
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" on %" GST_PTR_FORMAT, device, query);
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return TRUE;
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}
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static gboolean
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pad_query (const GValue * item, GValue * value, gpointer user_data)
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{
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GstPad *pad = (GstPad *) g_value_get_object (item);
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GstQuery *query = (GstQuery *) user_data;
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gboolean res;
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res = gst_pad_peer_query (pad, query);
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if (res) {
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g_value_set_boolean (value, TRUE);
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return FALSE;
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}
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GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, pad, "pad peer query failed");
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return TRUE;
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}
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static gboolean
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run_query (GstElement * element, GstQuery * query, GstPadDirection direction)
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{
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GstIterator *it;
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GstIteratorFoldFunction func = pad_query;
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GValue res = { 0 };
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g_value_init (&res, G_TYPE_BOOLEAN);
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g_value_set_boolean (&res, FALSE);
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/* Ask neighbor */
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if (direction == GST_PAD_SRC)
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it = gst_element_iterate_src_pads (element);
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else
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it = gst_element_iterate_sink_pads (element);
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while (gst_iterator_fold (it, func, &res, query) == GST_ITERATOR_RESYNC)
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gst_iterator_resync (it);
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gst_iterator_free (it);
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return g_value_get_boolean (&res);
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}
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static void
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run_d3d11_context_query (GstElement * element, GstD3D11Device ** device)
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{
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GstQuery *query;
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GstContext *ctxt = NULL;
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/* 1) Query downstream with GST_QUERY_CONTEXT for the context and
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* check if downstream already has a context of the specific type
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*/
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query = gst_query_new_context (GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE);
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if (run_query (element, query, GST_PAD_SRC)) {
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gst_query_parse_context (query, &ctxt);
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if (ctxt) {
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GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
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"found context (%" GST_PTR_FORMAT ") in downstream query", ctxt);
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gst_element_set_context (element, ctxt);
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}
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}
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/* 2) although we found d3d11 device context above, the context might not be
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* expected/wanted one by the element (e.g., belongs to the other GPU).
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* Then try to find it from the other direction */
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if (*device == NULL && run_query (element, query, GST_PAD_SINK)) {
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gst_query_parse_context (query, &ctxt);
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if (ctxt) {
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GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
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"found context (%" GST_PTR_FORMAT ") in upstream query", ctxt);
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gst_element_set_context (element, ctxt);
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}
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}
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if (*device == NULL) {
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/* 3) Post a GST_MESSAGE_NEED_CONTEXT message on the bus with
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* the required context type and afterwards check if a
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* usable context was set now as in 1). The message could
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* be handled by the parent bins of the element and the
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* application.
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*/
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GstMessage *msg;
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GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
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"posting need context message");
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msg = gst_message_new_need_context (GST_OBJECT_CAST (element),
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GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE);
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gst_element_post_message (element, msg);
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}
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gst_query_unref (query);
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}
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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 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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* 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: 1.22
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*/
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gboolean
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gst_d3d11_ensure_element_data (GstElement * element, gint adapter,
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GstD3D11Device ** device)
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{
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guint target_adapter = 0;
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/* *INDENT-OFF* */
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std::lock_guard<std::recursive_mutex> lk (_context_lock);
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/* *INDENT-ON* */
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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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if (adapter > 0)
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target_adapter = adapter;
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/* Needs D3D11_CREATE_DEVICE_BGRA_SUPPORT flag for Direct2D interop */
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*device = gst_d3d11_device_new (target_adapter,
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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 index %d", target_adapter);
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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_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: 1.22
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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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/* *INDENT-OFF* */
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std::lock_guard<std::recursive_mutex> lk (_context_lock);
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/* *INDENT-ON* */
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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);
|
|
|
|
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_context_new:
|
|
* @device: (transfer none): a #GstD3D11Device
|
|
*
|
|
* Creates a new #GstContext object with @device
|
|
*
|
|
* Returns: a #GstContext object
|
|
*
|
|
* Since: 1.22
|
|
*/
|
|
GstContext *
|
|
gst_d3d11_context_new (GstD3D11Device * device)
|
|
{
|
|
GstContext *context;
|
|
|
|
g_return_val_if_fail (GST_IS_D3D11_DEVICE (device), nullptr);
|
|
|
|
context = gst_context_new (GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE, TRUE);
|
|
context_set_d3d11_device (context, device);
|
|
|
|
return context;
|
|
}
|
|
|
|
/**
|
|
* gst_d3d11_luid_to_int64:
|
|
* @luid: A pointer to LUID struct
|
|
*
|
|
* Converts @luid to a 64-bit signed integer.
|
|
* See also Int64FromLuid method defined in
|
|
* windows.devices.display.core.interop.h Windows SDK header
|
|
*
|
|
* Since: 1.22
|
|
*/
|
|
gint64
|
|
gst_d3d11_luid_to_int64 (const LUID * luid)
|
|
{
|
|
LARGE_INTEGER val;
|
|
|
|
g_return_val_if_fail (luid != nullptr, 0);
|
|
|
|
val.LowPart = luid->LowPart;
|
|
val.HighPart = luid->HighPart;
|
|
|
|
return val.QuadPart;
|
|
}
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
static void
|
|
gst_d3d11_log_gpu_remove_reason (HRESULT hr, GstD3D11Device * device,
|
|
GstDebugCategory * cat, const gchar * file, const gchar * function,
|
|
gint line)
|
|
{
|
|
gchar *error_text = g_win32_error_message ((guint) hr);
|
|
|
|
gst_debug_log (cat, GST_LEVEL_ERROR, file, function, line,
|
|
NULL, "DeviceRemovedReason: 0x%x, %s", (guint) hr,
|
|
GST_STR_NULL (error_text));
|
|
g_free (error_text);
|
|
|
|
gst_d3d11_device_log_live_objects (device, file, function, line);
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* _gst_d3d11_result:
|
|
* @result: HRESULT D3D11 API return code
|
|
* @device: (nullable): Associated #GstD3D11Device
|
|
* @cat: a #GstDebugCategory
|
|
* @file: the file that checking the result code
|
|
* @function: the function that checking the result code
|
|
* @line: the line that checking the result code
|
|
*
|
|
* Prints debug message if @result code indicates the operation was failed.
|
|
*
|
|
* Returns: %TRUE if D3D11 API call result is SUCCESS
|
|
*
|
|
* Since: 1.22
|
|
*/
|
|
gboolean
|
|
_gst_d3d11_result (HRESULT hr, GstD3D11Device * device, GstDebugCategory * cat,
|
|
const gchar * file, const gchar * function, gint line)
|
|
{
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
gboolean ret = TRUE;
|
|
|
|
if (FAILED (hr)) {
|
|
gchar *error_text = NULL;
|
|
|
|
error_text = g_win32_error_message ((guint) hr);
|
|
/* g_win32_error_message() doesn't cover all HERESULT return code,
|
|
* so it could be empty string, or null if there was an error
|
|
* in g_utf16_to_utf8() */
|
|
gst_debug_log (cat, GST_LEVEL_WARNING, file, function, line,
|
|
NULL, "D3D11 call failed: 0x%x, %s", (guint) hr,
|
|
GST_STR_NULL (error_text));
|
|
g_free (error_text);
|
|
|
|
if (device) {
|
|
ID3D11Device *device_handle = gst_d3d11_device_get_device_handle (device);
|
|
hr = device_handle->GetDeviceRemovedReason ();
|
|
if (hr != S_OK) {
|
|
gst_d3d11_log_gpu_remove_reason (hr, device, cat, file, function, line);
|
|
}
|
|
}
|
|
|
|
ret = FALSE;
|
|
}
|
|
#if (HAVE_D3D11SDKLAYERS_H || HAVE_DXGIDEBUG_H)
|
|
if (device) {
|
|
gst_d3d11_device_d3d11_debug (device, file, function, line);
|
|
gst_d3d11_device_dxgi_debug (device, file, function, line);
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
#else
|
|
return SUCCEEDED (hr);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* gst_d3d11_create_user_token:
|
|
*
|
|
* Creates new user token value
|
|
*
|
|
* Returns: user token value
|
|
*
|
|
* Since: 1.24
|
|
*/
|
|
gint64
|
|
gst_d3d11_create_user_token (void)
|
|
{
|
|
/* *INDENT-OFF* */
|
|
static std::atomic < gint64 > user_token { 0 };
|
|
/* *INDENT-ON* */
|
|
|
|
return user_token.fetch_add (1);
|
|
}
|