gstreamer/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12pluginutils.cpp

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/* GStreamer
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d12pluginutils.h"
#include <directx/d3dx12.h>
#include <vector>
#define _XM_NO_INTRINSICS_
#include <DirectXMath.h>
/* *INDENT-OFF* */
using namespace DirectX;
/* *INDENT-ON* */
#ifndef GST_DISABLE_GST_DEBUG
#define GST_CAT_DEFAULT ensure_debug_category()
static GstDebugCategory *
ensure_debug_category (void)
{
static GstDebugCategory *cat = nullptr;
GST_D3D12_CALL_ONCE_BEGIN {
cat = _gst_debug_category_new ("d3d12pluginutils", 0, "d3d12pluginutils");
} GST_D3D12_CALL_ONCE_END;
return cat;
}
#endif /* GST_DISABLE_GST_DEBUG */
GType
gst_d3d12_sampling_method_get_type (void)
{
static GType type = 0;
static const GEnumValue methods[] = {
{GST_D3D12_SAMPLING_METHOD_NEAREST,
"Nearest Neighbour", "nearest-neighbour"},
{GST_D3D12_SAMPLING_METHOD_BILINEAR,
"Bilinear", "bilinear"},
{GST_D3D12_SAMPLING_METHOD_LINEAR_MINIFICATION,
"Linear minification, point magnification", "linear-minification"},
{GST_D3D12_SAMPLING_METHOD_ANISOTROPIC, "Anisotropic", "anisotropic"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_enum_register_static ("GstD3D12SamplingMethod", methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
struct SamplingMethodMap
{
GstD3D12SamplingMethod method;
D3D12_FILTER filter;
};
static const SamplingMethodMap sampling_method_map[] = {
{GST_D3D12_SAMPLING_METHOD_NEAREST, D3D12_FILTER_MIN_MAG_MIP_POINT},
{GST_D3D12_SAMPLING_METHOD_BILINEAR, D3D12_FILTER_MIN_MAG_LINEAR_MIP_POINT},
{GST_D3D12_SAMPLING_METHOD_LINEAR_MINIFICATION,
D3D12_FILTER_MIN_LINEAR_MAG_MIP_POINT},
{GST_D3D12_SAMPLING_METHOD_ANISOTROPIC, D3D12_FILTER_ANISOTROPIC},
};
D3D12_FILTER
gst_d3d12_sampling_method_to_native (GstD3D12SamplingMethod method)
{
for (guint i = 0; i < G_N_ELEMENTS (sampling_method_map); i++) {
if (sampling_method_map[i].method == method)
return sampling_method_map[i].filter;
}
return D3D12_FILTER_MIN_MAG_MIP_POINT;
}
GType
gst_d3d12_msaa_mode_get_type (void)
{
static GType type = 0;
static const GEnumValue msaa_mode[] = {
{GST_D3D12_MSAA_DISABLED, "Disabled", "disabled"},
{GST_D3D12_MSAA_2X, "2x MSAA", "2x"},
{GST_D3D12_MSAA_4X, "4x MSAA", "4x"},
{GST_D3D12_MSAA_8X, "8x MSAA", "8x"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_enum_register_static ("GstD3D12MSAAMode", msaa_mode);
} GST_D3D12_CALL_ONCE_END;
return type;
}
gboolean
gst_d3d12_need_transform (gfloat rotation_x, gfloat rotation_y,
gfloat rotation_z, gfloat scale_x, gfloat scale_y)
{
const gfloat min_diff = 0.00001f;
if (!XMScalarNearEqual (rotation_x, 0.0f, min_diff) ||
!XMScalarNearEqual (rotation_y, 0.0f, min_diff) ||
!XMScalarNearEqual (rotation_z, 0.0f, min_diff) ||
!XMScalarNearEqual (scale_x, 1.0f, min_diff) ||
!XMScalarNearEqual (scale_y, 1.0f, min_diff)) {
return TRUE;
}
return FALSE;
}
gboolean
gst_d3d12_is_windows_10_or_greater (void)
{
static gboolean ret = FALSE;
GST_D3D12_CALL_ONCE_BEGIN {
ret = g_win32_check_windows_version (10, 0, 0, G_WIN32_OS_ANY);
} GST_D3D12_CALL_ONCE_END;
return ret;
}