[pixel shader]
typedef float2x2 matrix_t;
typedef row_major matrix_t row_matrix_t;
typedef column_major matrix_t col_matrix_t;
uniform row_matrix_t r;
uniform col_matrix_t c;

float4 main() : sv_target
{
    float4 ret;
    ret.xy = mul(r, float2(0.5, 0.6));
    ret.zw = mul(c, float2(0.5, 0.6));
    return ret;
}

[test]
uniform  0 float4 0.1 0.2 0.0 0.0
uniform  4 float4 0.3 0.4 0.0 0.0
uniform  8 float4 0.1 0.3 0.0 0.0
uniform 12 float4 0.2 0.4 0.0 0.0
todo(sm>=6) draw quad
probe all rgba (0.17, 0.39, 0.17, 0.39) 1
