mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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117 lines
2.9 KiB
C++
117 lines
2.9 KiB
C++
/* GStreamer
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* Copyright (C) 2020 Igalia, S.L.
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* Author: Víctor Jáquez <vjaquez@igalia.com>
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* Copyright (C) 2023 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 "gstvadevice.h"
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#include <wrl.h>
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#include <dxgi.h>
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#include <string>
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/* *INDENT-OFF* */
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using namespace Microsoft::WRL;
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extern "C" {
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GST_DEBUG_CATEGORY_EXTERN (gstva_debug);
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#define GST_CAT_DEFAULT gstva_debug
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}
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/* *INDENT-ON* */
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GST_DEFINE_MINI_OBJECT_TYPE (GstVaDevice, gst_va_device);
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static void
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gst_va_device_free (GstVaDevice * device)
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{
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gst_clear_object (&device->display);
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g_free (device->render_device_path);
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g_free (device);
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}
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static GstVaDevice *
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gst_va_device_new (GstVaDisplay * display, const gchar * render_device_path,
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gint index)
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{
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GstVaDevice *device = g_new0 (GstVaDevice, 1);
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gst_mini_object_init (GST_MINI_OBJECT_CAST (device), 0, GST_TYPE_VA_DEVICE,
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NULL, NULL, (GstMiniObjectFreeFunction) gst_va_device_free);
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/* take ownership */
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device->display = display;
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device->render_device_path = g_strdup (render_device_path);
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device->index = index;
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return device;
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}
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GList *
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gst_va_device_find_devices (void)
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{
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HRESULT hr;
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ComPtr < IDXGIFactory1 > factory;
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GList *ret = nullptr;
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guint idx = 0;
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hr = CreateDXGIFactory1 (IID_PPV_ARGS (&factory));
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if (FAILED (hr))
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return nullptr;
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for (guint i = 0;; i++) {
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ComPtr < IDXGIAdapter > adapter;
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LARGE_INTEGER val;
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DXGI_ADAPTER_DESC desc;
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std::string luid_str;
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GstVaDisplay *dpy;
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GstVaDevice *dev;
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hr = factory->EnumAdapters (i, &adapter);
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if (FAILED (hr))
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break;
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hr = adapter->GetDesc (&desc);
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if (FAILED (hr))
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continue;
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val.LowPart = desc.AdapterLuid.LowPart;
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val.HighPart = desc.AdapterLuid.HighPart;
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luid_str = std::to_string (val.QuadPart);
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dpy = gst_va_display_win32_new (luid_str.c_str ());
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if (!dpy)
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continue;
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dev = gst_va_device_new (dpy, luid_str.c_str (), idx);
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ret = g_list_append (ret, dev);
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idx++;
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}
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return ret;
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}
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void
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gst_va_device_list_free (GList * devices)
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{
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g_list_free_full (devices, (GDestroyNotify) gst_mini_object_unref);
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}
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