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[require]
GLSL >= 1.50
[vertex shader]
in vec4 piglit_vertex;
uniform ublk {
uniform vec4 color;
} c;
out vblk1 {
vec4 r;
};
void vs2_set_gb();
void vs2_set_a();
void vs3_set_b();
void vs4_set_a();
void main()
{
gl_Position = piglit_vertex;
r.r = c.color.r;
vs2_set_gb();
vs3_set_b();
vs4_set_a();
vs2_set_a();
}
[vertex shader]
uniform ublk {
uniform vec4 color;
} vs2ublk;
struct gb_struct {
vec2 gb;
};
out vblk2 {
float unused;
float a;
gb_struct gb_array[3];
} gb_blk;
/* Use an array within an interface block.
*/
void vs2_set_gb()
{
gb_blk.gb_array[1].gb = vs2ublk.color.gb;
}
/* Make sure that vblk2.a doesn't alias/overwrite vblk4.a.
* vblk4.a is used in the final result.
*/
void vs2_set_a()
{
gb_blk.a = 0;
}
[vertex shader]
uniform ublk {
uniform vec4 color;
} vs3ublk;
out vblk3 {
float b;
} b_blk[3];
/* Use an array of interface block instances.
*/
void vs3_set_b()
{
b_blk[1].b = vs3ublk.color.b;
b_blk[0].b = b_blk[2].b = 0.0;
}
[vertex shader]
uniform ublk {
uniform vec4 color;
} vs4ublk;
out vblk4 {
mat4 unused;
float a;
} a_blk;
void vs4_set_a()
{
a_blk.a = vs4ublk.color.a;
}
[fragment shader]
/* Note: vblk1 did not have an instance name in VS1
*/
in vblk1 {
vec4 r;
} r_blk;
struct gb_struct {
vec2 gb;
};
in vblk2 {
float unused;
float a;
gb_struct gb_array[3];
} gb_blk;
in vblk3 {
float b;
} b_blk[3];
/* Note: vblk4 had an instance name in VS4
*/
in vblk4 {
mat4 unused;
float a;
};
void main()
{
/* Note: gl_FragColor is set to the uniform named color, but it is
* passed through several interface blocks.
*/
gl_FragColor.r = r_blk.r.r;
gl_FragColor.gb = gb_blk.gb_array[1].gb;
gl_FragColor.b = b_blk[1].b;
gl_FragColor.a = a;
}
[test]
uniform vec4 ublk.color 1.0 0.0 0.0 0.0
draw rect -1 -1 2 2
probe all rgba 1.0 0.0 0.0 0.0
uniform vec4 ublk.color 0.0 1.0 0.0 0.0
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 0.0
uniform vec4 ublk.color 0.0 0.0 1.0 0.0
draw rect -1 -1 2 2
probe all rgba 0.0 0.0 1.0 0.0
uniform vec4 ublk.color 0.0 0.0 0.0 1.0
draw rect -1 -1 2 2
probe all rgba 0.0 0.0 0.0 1.0
uniform vec4 ublk.color 1.0 0.0 1.0 0.0
draw rect -1 -1 2 2
probe all rgba 1.0 0.0 1.0 0.0
uniform vec4 ublk.color 0.0 1.0 0.0 1.0
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0
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