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
|
// [config]
// expect_result: fail
// glsl_version: 1.10
//
// [end config]
/* FAIL
*
* From page 17 (page 23 of the PDF) of the GLSL 1.20 spec:
*
* "Samplers cannot be treated as l-values; hence cannot be used as
* out or inout function parameters, nor can they be assigned into."
*/
uniform sampler2D u[4];
varying vec2 coord;
void function(out sampler2D s, int i)
{
s = u[i];
}
void main()
{
sampler2D temp;
function(temp, 0);
gl_FragColor = texture2D(temp, coord);
}
|