mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-03 06:56:46 +00:00
50 lines
1.5 KiB
HLSL
50 lines
1.5 KiB
HLSL
|
/* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static const float blocksize = 8.0;
|
||
|
|
static const float4 high = float4 (0.667, 0.0, 0.0, 1.0);
|
||
|
|
static const float4 low = float4 (0.333, 0.0, 0.0, 1.0);
|
||
|
|
|
||
|
|
struct PS_INPUT
|
||
|
|
{
|
||
|
|
float4 Position : SV_POSITION;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct PS_OUTPUT
|
||
|
|
{
|
||
|
|
float4 Plane : SV_TARGET;
|
||
|
|
};
|
||
|
|
|
||
|
|
PS_OUTPUT PSMain_checker_luma (PS_INPUT input)
|
||
|
|
{
|
||
|
|
PS_OUTPUT output;
|
||
|
|
if ((input.Position.x % (blocksize * 2.0)) >= blocksize) {
|
||
|
|
if ((input.Position.y % (blocksize * 2.0)) >= blocksize)
|
||
|
|
output.Plane = low;
|
||
|
|
else
|
||
|
|
output.Plane = high;
|
||
|
|
} else {
|
||
|
|
if ((input.Position.y % (blocksize * 2.0)) < blocksize)
|
||
|
|
output.Plane = low;
|
||
|
|
else
|
||
|
|
output.Plane = high;
|
||
|
|
}
|
||
|
|
return output;
|
||
|
|
}
|