# Based on multiple-resident-images-reading.shader_test

# in row_major SSBOs, [n][m] should not use the same memory location as
# [m][n], and they shouldn't use the same location as[0][m+n].

[require]
GL >= 4.3
GLSL >= 4.30

[compute shader]
#version 430
#extension GL_ARB_bindless_texture: enable

layout(row_major, binding=0) buffer b {
    mat4 m;
};

layout (bindless_image) uniform;
writeonly uniform image2D dst;

layout(local_size_x = 16, local_size_y = 16) in;

void main()
{
    m[0][3] = 0.1f;
    m[1][2] = 0.2f;
    m[2][1] = 0.3f;

    m[1][3] = 0.4f;
    m[3][1] = 0.5f;

    memoryBarrierBuffer();
    barrier();

    vec4 color = vec4(m[0][3], m[1][2], m[2][1], m[1][3]);
    imageStore(dst, ivec2(gl_GlobalInvocationID.xy), color);
}

[test]
# Setup dst image and SSBO
texture rgbw 0 (16, 16) GL_RGBA8
resident image texture 0 GL_RGBA8
uniform handle dst 0
fb tex 2d 0

ssbo 0 64

# run compute shader
compute 1 1 1
probe all rgba 0.1 0.2 0.3 0.4