mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-09 19:09:41 +00:00
3cf0abddbb
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1338>
38 lines
1.4 KiB
GLSL
38 lines
1.4 KiB
GLSL
/* GStreamer
|
|
* Copyright (C) 2020 Matthew Waters <matthew@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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
vec3 upsample_YUY2(in sampler2D tex, in vec2 texCoord, in vec2 texSize, in ivec4 inReorderIdx)
|
|
{
|
|
vec2 dx = vec2(-1.0 / texSize.x, 0.0);
|
|
if (mod (texCoord.x * texSize.x, 2.0) < 1.0) {
|
|
dx[1] = -dx[0];
|
|
dx[0] = 0.0;
|
|
}
|
|
|
|
vec3 yuv;
|
|
yuv.x = texture(tex, texCoord)[inReorderIdx[0]];
|
|
/* FIXME: should get cosited sampling right... */
|
|
vec4 texel;
|
|
texel.xy = texture(tex, texCoord + vec2(dx[0], 0.0)).rg;
|
|
texel.zw = texture(tex, texCoord + vec2(dx[1], 0.0)).rg;
|
|
yuv.y = texel[inReorderIdx[1]];
|
|
yuv.z = texel[inReorderIdx[3]];
|
|
|
|
return yuv;
|
|
}
|