[require]
GLSL >= 1.10

[vertex shader]
/* Verify that array varyings and non-array varyings are properly placed
 * together.  If they are, the result in the fragment program will be:
 *
 * (( 0.0, 0.2,  1.0, 0.33) + (-1.0, 0.3,  0.0, 0.33) + ( 1.0, 0.0, -1.0, 0.34))
 *  * ( 2.0, 2.0,  2.0, 0.0) =
 *
 * ((-1.0, 0.5,  1.0, 0.66) + ( 1.0, 0.0, -1.0, 0.34))
 *  * ( 2.0, 2.0,  2.0, 0.0) =
 *
 * ((0.0, 0.5, 0.0, 1.0) * (2.0, 2.0,  2.0, 1.0) =
 *
 *  (0.0, 1.0, 0.0, 1.0)
 *
 * If either element of the array overlaps one of the non-arrays, a different
 * value will result.
 *
 * This reproduces one of the errors seen in the Humus demo Raytraced Shadows.
 * See bugzilla #29784.
 */
varying vec4 a;
varying vec4 b[2];
varying vec4 c;

void main()
{
	gl_Position = gl_Vertex;

	a    = vec4( 0.0, 0.2,  1.0, 0.33);
	b[0] = vec4(-1.0, 0.3,  0.0, 0.33);
	b[1] = vec4( 1.0, 0.0, -1.0, 0.34);
	c    = vec4( 2.0, 2.0,  2.0, 1.0);
}

[fragment shader]
varying vec4 a;
varying vec4 b[2];
varying vec4 c;

void main()
{
	gl_FragColor = (a + b[0] + b[1]) * c;
}

[test]
draw rect -1 -1 2 2
relative probe rgba (0.1, 0.1) (0.0, 1.0, 0.0, 1.0)