1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
// [config]
// expect_result: pass
// glsl_version: 1.10
//
// # NOTE: Config section was auto-generated from file
// # NOTE: 'glslparser.tests' at git revision
// # NOTE: 6cc17ae70b70d150aa1751f8e28db7b2a9bd50f0
// [end config]
/*
* GStreamer
* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.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.
*/
#extension GL_ARB_texture_rectangle : enable
uniform sampler2DRect tex;
void main () {
vec2 texturecoord = gl_TexCoord[0].st;
int i;
vec4 color = texture2DRect(tex, texturecoord);
float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));
gl_FragColor = vec4 (vec3 (smoothstep (0.30, 0.50, luma)), color.a);
}
|
