File: glsl-const-builtin-inversesqrt.shader_test

package info (click to toggle)
piglit 0~git20150829-59d7066-1%2Bdeb9u1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 39,280 kB
  • sloc: ansic: 191,513; xml: 43,580; cpp: 29,351; python: 18,307; lisp: 8,347; sh: 507; makefile: 17; pascal: 5
file content (24 lines) | stat: -rw-r--r-- 463 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
[require]
GLSL >= 1.20

[vertex shader]
void main()
{
	gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}

[fragment shader]
void main()
{
    const vec3 v = inversesqrt(vec3(16.0));

    /* The following values are undefined but the compiler should not crash. */
    const float undef1 = inversesqrt(0.0);
    const float undef2 = inversesqrt(-1.0);

    gl_FragColor = vec4(v, undef1 + undef2);
}

[test]
draw rect -1 -1 2 2
probe all rgb 0.25 0.25 0.25