mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
/* GStreamer
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* Copyright (C) 2021 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 "gstmfplatloader.h"
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#include "gstmfconfig.h"
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#include <gmodule.h>
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GST_DEBUG_CATEGORY_EXTERN (gst_mf_debug);
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#define GST_CAT_DEFAULT gst_mf_debug
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/* *INDENT-OFF* */
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#define LOAD_SYMBOL(name,func) G_STMT_START { \
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if (!g_module_symbol (module, G_STRINGIFY (name), (gpointer *) &vtable->func)) { \
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GST_WARNING ("Failed to load '%s', %s", G_STRINGIFY (name), g_module_error()); \
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goto out; \
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} \
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} G_STMT_END;
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typedef struct _GstMFPlatVTable
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{
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gboolean loaded;
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HRESULT (__stdcall * GstMFTEnum2) (GUID guidCategory,
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UINT32 Flags,
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const MFT_REGISTER_TYPE_INFO * pInputType,
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const MFT_REGISTER_TYPE_INFO * pOutputType,
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IMFAttributes * pAttributes,
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IMFActivate *** pppMFTActivate,
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UINT32 * pnumMFTActivate);
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HRESULT (__stdcall * GstMFCreateDXGIDeviceManager) (UINT * resetToken,
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IMFDXGIDeviceManager ** ppDeviceManager);
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HRESULT (__stdcall * GstMFCreateVideoSampleAllocatorEx) (REFIID riid,
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void** ppSampleAllocator);
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} GstMFPlatVTable;
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/* *INDENT-ON* */
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static GstMFPlatVTable gst_mf_plat_vtable = { 0, };
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static gboolean
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load_library_once (void)
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{
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static gsize load_once = 0;
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if (g_once_init_enter (&load_once)) {
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#if GST_MF_HAVE_D3D11
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GModule *module;
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GstMFPlatVTable *vtable = &gst_mf_plat_vtable;
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module = g_module_open ("mfplat.dll", G_MODULE_BIND_LAZY);
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if (!module)
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goto out;
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LOAD_SYMBOL (MFTEnum2, GstMFTEnum2);
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LOAD_SYMBOL (MFCreateDXGIDeviceManager, GstMFCreateDXGIDeviceManager);
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LOAD_SYMBOL (MFCreateVideoSampleAllocatorEx,
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GstMFCreateVideoSampleAllocatorEx);
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vtable->loaded = TRUE;
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#endif
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out:
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g_once_init_leave (&load_once, 1);
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}
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return gst_mf_plat_vtable.loaded;
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}
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gboolean
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gst_mf_plat_load_library (void)
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{
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return load_library_once ();
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}
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HRESULT __stdcall
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GstMFTEnum2 (GUID guidCategory, UINT32 Flags,
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const MFT_REGISTER_TYPE_INFO * pInputType,
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const MFT_REGISTER_TYPE_INFO * pOutputType,
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IMFAttributes * pAttributes, IMFActivate *** pppMFTActivate,
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UINT32 * pnumMFTActivate)
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{
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g_assert (gst_mf_plat_vtable.GstMFTEnum2 != nullptr);
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return gst_mf_plat_vtable.GstMFTEnum2 (guidCategory, Flags, pInputType,
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pOutputType, pAttributes, pppMFTActivate, pnumMFTActivate);
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}
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HRESULT __stdcall
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GstMFCreateDXGIDeviceManager (UINT * resetToken,
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IMFDXGIDeviceManager ** ppDeviceManager)
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{
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g_assert (gst_mf_plat_vtable.GstMFCreateDXGIDeviceManager != nullptr);
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return gst_mf_plat_vtable.GstMFCreateDXGIDeviceManager (resetToken,
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ppDeviceManager);
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}
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HRESULT __stdcall
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GstMFCreateVideoSampleAllocatorEx (REFIID riid, void **ppSampleAllocator)
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{
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g_assert (gst_mf_plat_vtable.GstMFCreateVideoSampleAllocatorEx != nullptr);
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return gst_mf_plat_vtable.GstMFCreateVideoSampleAllocatorEx (riid,
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ppSampleAllocator);
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}
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