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[require]
GLSL >= 1.50
GL_ARB_gpu_shader5
GL_ARB_arrays_of_arrays
[vertex shader]
#extension GL_ARB_arrays_of_arrays : enable
in vec4 piglit_vertex;
out vec3 a[2][2];
void main()
{
gl_Position = piglit_vertex;
a[0][0] = piglit_vertex.xyz;
a[0][1] = piglit_vertex.zxy;
a[1][0] = piglit_vertex.xzy;
a[1][1] = piglit_vertex.zyx;
}
[fragment shader]
#extension GL_ARB_gpu_shader5 : enable
#extension GL_ARB_arrays_of_arrays : enable
in vec3 a[2][2];
uniform int u_idx;
out vec4 color;
void main()
{
/* There is no multi-sampling, so these should be the same. */
vec3 delta = a[u_idx / 2][u_idx % 2] - interpolateAtSample(a[u_idx / 2][u_idx % 2], 0);
if (delta != vec3(0.0)) {
color = vec4(1.0, delta.x + 0.5, delta.y + 0.5, delta.z + 0.5);
} else {
color = vec4(0.0, 1.0, 0.0, 1.0);
}
}
[test]
clear color 0.0 0.0 0.0 0.0
clear
uniform int u_idx 0
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0
clear color 0.0 0.0 0.0 0.0
clear
uniform int u_idx 1
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0
clear color 0.0 0.0 0.0 0.0
clear
uniform int u_idx 2
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0
clear color 0.0 0.0 0.0 0.0
clear
uniform int u_idx 3
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0
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