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[require]
GL >= 3.2
GLSL >= 1.50
GL_MESA_shader_framebuffer_fetch_non_coherent
GL_ARB_texture_storage
[vertex shader passthrough]
[geometry shader]
#version 150
layout(triangles) in;
layout(triangle_strip, max_vertices=12) out;
flat out int glayer;
void main()
{
for (int layer = 0; layer < 4; layer++) {
for (int i = 0; i < 3; i++) {
gl_Position = gl_in[i].gl_Position;
gl_Layer = glayer = layer;
EmitVertex();
}
EndPrimitive();
}
}
[fragment shader]
#version 150
#extension GL_MESA_shader_framebuffer_fetch_non_coherent : enable
flat in int glayer;
inout highp vec4 fcolor;
void main()
{
fcolor += (glayer == 3 ? vec4(0.0, 0.0, 0.5, 0.0) :
glayer == 2 ? vec4(0.5, 0.5, 0.0, 0.0) :
glayer == 1 ? vec4(0.0, 0.5, 0.0, 0.0) :
vec4(0.5, 0.0, 0.0, 0.0));
}
[test]
texture storage 0 1DArray GL_RGBA8 (1 250 4)
fb tex layered 0
clear color 0.0 0.0 0.5 0.0
clear
blend barrier
draw rect -1 -1 2 2
blend barrier
draw rect -1 -1 2 2
fb tex slice 1DArray 0 0 0
relative probe rect rgb (0.0, 0.0, 1.0, 1.0) (1.0, 0.0, 0.5)
fb tex slice 1DArray 0 0 1
relative probe rect rgb (0.0, 0.0, 1.0, 1.0) (0.0, 1.0, 0.5)
fb tex slice 1DArray 0 0 2
relative probe rect rgb (0.0, 0.0, 1.0, 1.0) (1.0, 1.0, 0.5)
fb tex slice 1DArray 0 0 3
relative probe rect rgb (0.0, 0.0, 1.0, 1.0) (0.0, 0.0, 1.0)
fb draw winsys
blit color linear
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