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"
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;
}