gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/va/gstvadisplay_win32.cpp

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/* GStreamer
* Copyright (C) 2020 Igalia, S.L.
* Author: Víctor Jáquez <vjaquez@igalia.com>
* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:gstvadisplaywin32
* @title: GstVaDisplayWin32
* @short_description: VADisplay from a Win32 Direct3D12 backend
* @sources:
* - gstvadisplay_win32.h
*
* This is a #GstVaDisplay subclass to instantiate for Win32 Direct3D12 backend.
*
* Since: 1.24
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef INITGUID
#include <initguid.h>
#endif
#include "gstvadisplay_win32.h"
#include <wrl.h>
#include <dxgi.h>
#include <va/va_win32.h>
#include <string>
#include <vector>
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
extern "C" {
GST_DEBUG_CATEGORY_EXTERN (gst_va_display_debug);
#define GST_CAT_DEFAULT gst_va_display_debug
}
/* *INDENT-ON* */
/**
* GstVaDisplayWin32:
*
* Since: 1.24
*/
struct _GstVaDisplayWin32
{
GstVaDisplay parent;
gchar *adapter_luid_str;
gint64 adapter_luid;
guint device_id;
guint vendor_id;
gchar *desc;
};
/**
* GstVaDisplayWin32Class:
*
* Since: 1.24
*/
struct _GstVaDisplayWin32Class
{
GstVaDisplayClass parent_class;
};
enum
{
PROP_0,
PROP_PATH,
PROP_ADAPTER_LUID,
PROP_DEVICE_ID,
PROP_VENDOR_ID,
PROP_DESC,
};
static void gst_va_display_win32_finalize (GObject * object);
static void gst_va_display_win32_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_va_display_win32_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static gpointer gst_va_display_win32_create_va_display (GstVaDisplay * display);
#define gst_va_display_win32_parent_class parent_class
G_DEFINE_TYPE (GstVaDisplayWin32, gst_va_display_win32, GST_TYPE_VA_DISPLAY);
static void
gst_va_display_win32_class_init (GstVaDisplayWin32Class * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstVaDisplayClass *display_class = GST_VA_DISPLAY_CLASS (klass);
GParamFlags construct_only_flags = (GParamFlags)
(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT_ONLY);
object_class->get_property = gst_va_display_win32_get_property;
object_class->set_property = gst_va_display_win32_set_property;
object_class->finalize = gst_va_display_win32_finalize;
g_object_class_install_property (object_class, PROP_PATH,
g_param_spec_string ("path", "Path",
"String representation of DXGI Adapter LUID",
nullptr, construct_only_flags));
g_object_class_install_property (object_class, PROP_ADAPTER_LUID,
g_param_spec_int64 ("adapter-luid", "Adapter LUID",
"DXGI Adapter LUID",
G_MININT64, G_MAXINT64, 0, construct_only_flags));
g_object_class_install_property (object_class, PROP_DEVICE_ID,
g_param_spec_uint ("device-id", "Device Id",
"DXGI Device ID", 0, G_MAXUINT32, 0, construct_only_flags));
g_object_class_install_property (object_class, PROP_VENDOR_ID,
g_param_spec_uint ("vendor-id", "Vendor Id",
"DXGI Vendor ID", 0, G_MAXUINT32, 0, construct_only_flags));
g_object_class_override_property (object_class, PROP_DESC, "description");
display_class->create_va_display =
GST_DEBUG_FUNCPTR (gst_va_display_win32_create_va_display);
}
static void
gst_va_display_win32_init (GstVaDisplayWin32 * self)
{
}
static void
gst_va_display_win32_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVaDisplayWin32 *self = GST_VA_DISPLAY_WIN32 (object);
switch (prop_id) {
case PROP_PATH:
g_value_set_string (value, self->adapter_luid_str);
break;
case PROP_ADAPTER_LUID:
g_value_set_int64 (value, self->adapter_luid);
break;
case PROP_DEVICE_ID:
g_value_set_uint (value, self->device_id);
break;
case PROP_VENDOR_ID:
g_value_set_uint (value, self->vendor_id);
break;
case PROP_DESC:
g_value_set_string (value, self->desc);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_va_display_win32_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVaDisplayWin32 *self = GST_VA_DISPLAY_WIN32 (object);
switch (prop_id) {
case PROP_PATH:
self->adapter_luid_str = g_value_dup_string (value);
break;
case PROP_ADAPTER_LUID:
self->adapter_luid = g_value_get_int64 (value);
break;
case PROP_DEVICE_ID:
self->device_id = g_value_get_uint (value);
break;
case PROP_VENDOR_ID:
self->vendor_id = g_value_get_uint (value);
break;
case PROP_DESC:
self->desc = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_va_display_win32_finalize (GObject * object)
{
GstVaDisplayWin32 *self = GST_VA_DISPLAY_WIN32 (object);
g_free (self->adapter_luid_str);
g_free (self->desc);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gpointer
gst_va_display_win32_create_va_display (GstVaDisplay * display)
{
GstVaDisplayWin32 *self = GST_VA_DISPLAY_WIN32 (display);
LARGE_INTEGER val;
LUID luid;
val.QuadPart = self->adapter_luid;
luid.LowPart = val.LowPart;
luid.HighPart = val.HighPart;
return vaGetDisplayWin32 (&luid);
}
/**
* gst_va_display_win32_new:
* @adapter_luid: DXGI adapter luid
*
* Creates a new #GstVaDisplay from Win32 Direct3D backend
*
* Returns: (transfer full): a newly allocated #GstVaDisplay if the
* specified Win32 backend could be opened and initialized;
* otherwise %NULL is returned.
*
* Since: 1.24
*/
GstVaDisplay *
gst_va_display_win32_new (const gchar * adapter_luid)
{
GstVaDisplayWin32 *self;
HRESULT hr;
ComPtr < IDXGIFactory1 > factory;
DXGI_ADAPTER_DESC desc;
gint64 adapter_luid_i64;
gchar *desc_str;
gint max_profiles, max_entry_points;
gint num_profiles;
VAStatus status;
VADisplay dpy;
std::vector < VAEntrypoint > entry_points;
std::vector < VAProfile > profiles;
g_return_val_if_fail (adapter_luid != nullptr, nullptr);
/* *INDENT-OFF* */
try {
adapter_luid_i64 = std::stoll (adapter_luid);
} catch (...) {
return nullptr;
}
/* *INDENT-ON* */
hr = CreateDXGIFactory1 (IID_PPV_ARGS (&factory));
if (FAILED (hr))
return nullptr;
for (guint i = 0;; i++) {
ComPtr < IDXGIAdapter > adapter;
LARGE_INTEGER val;
hr = factory->EnumAdapters (i, &adapter);
if (FAILED (hr))
return nullptr;
hr = adapter->GetDesc (&desc);
if (FAILED (hr))
continue;
val.LowPart = desc.AdapterLuid.LowPart;
val.HighPart = desc.AdapterLuid.HighPart;
if (val.QuadPart == adapter_luid_i64)
break;
}
desc_str = g_utf16_to_utf8 ((gunichar2 *) desc.Description,
-1, nullptr, nullptr, nullptr);
self = (GstVaDisplayWin32 *) g_object_new (gst_va_display_win32_get_type (),
"path", adapter_luid, "adapter-luid", adapter_luid_i64, "device-id",
desc.DeviceId, "vendor-id", desc.VendorId, nullptr);
self->desc = desc_str;
if (!gst_va_display_initialize (GST_VA_DISPLAY (self)))
goto error;
/* Validate device */
dpy = gst_va_display_get_va_dpy (GST_VA_DISPLAY (self));
max_profiles = vaMaxNumProfiles (dpy);
if (max_profiles <= 0)
goto error;
max_entry_points = vaMaxNumEntrypoints (dpy);
if (max_entry_points <= 0)
goto error;
profiles.resize (max_profiles);
status = vaQueryConfigProfiles (dpy, &profiles[0], &num_profiles);
if (status != VA_STATUS_SUCCESS || num_profiles <= 0)
goto error;
entry_points.resize (max_entry_points);
for (guint i = 0; i < num_profiles; i++) {
gint num_entry_poinits;
status = vaQueryConfigEntrypoints (dpy, profiles[i], &entry_points[0],
&num_entry_poinits);
if (status != VA_STATUS_SUCCESS)
goto error;
}
gst_object_ref_sink (self);
return GST_VA_DISPLAY (self);
error:
gst_object_unref (self);
return nullptr;
}