gles2/shaders/constants.test

case float_input
    values
    {
        input float in0 = [ 1.123 | 0.75 | -512.0 | -72.13 | 199.91 | -1.123 | -0.75 | 512.0 | -72.13 | -199.91 ];
        output float out0 = [ 1.123 | 0.75 | -512.0 | -72.13 | 199.91 | -1.123 | -0.75 | 512.0 | -72.13 | -199.91 ];
    }

    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = in0;
            ${OUTPUT}
        }
    ""
end

case float_uniform
    values
    {
        uniform float uni0 = [ 1.123 | 0.75 | -512.0 | -72.13 | 199.91 ];
        output float out0 = [ 1.123 | 0.75 | -512.0 | -72.13 | 199.91 ];
    }

    both ""
        precision highp float;
        ${DECLARATIONS}
        uniform float uni0;
        void main()
        {
            out0 = uni0;
            ${OUTPUT}
        }
    ""
end

case float_0
    values { output float out0 = 1.123; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = +1.123;
            ${OUTPUT}
        }
    ""
end

case float_1
    values { output float out0 = -1.123; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = -1.123;
            ${OUTPUT}
        }
    ""
end

case float_2
    values { output float out0 = 123.0; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = 123.;
            ${OUTPUT}
        }
    ""
end

case float_3
    values { output float out0 = 0.123; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = .123;
            ${OUTPUT}
        }
    ""
end

case float_4
    values { output float out0 = 123.0; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = 1.23e+2;
            ${OUTPUT}
        }
    ""
end

case float_5
    values { output float out0 = -123.0; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = -1.23E+2;
            ${OUTPUT}
        }
    ""
end

case float_6
    values { output float out0 = -123.0; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = -1.23e2;
            ${OUTPUT}
        }
    ""
end

case float_7
    values { output float out0 = 0.123; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = 1.23e-1;
            ${OUTPUT}
        }
    ""
end

case float_8
    values { output float out0 = 1000.0; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = 1e3;
            ${OUTPUT}
        }
    ""
end

case int_0
    values { output int out0 = 123; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = 123;
            ${OUTPUT}
        }
    ""
end

case int_1
    values { output int out0 = -321; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = -321;
            ${OUTPUT}
        }
    ""
end

case int_2
    values { output int out0 = 123; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = 0x7B;
            ${OUTPUT}
        }
    ""
end

case int_3
    values { output int out0 = 123; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = 0X7b;
            ${OUTPUT}
        }
    ""
end

case int_4
    values { output int out0 = 123; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = 0173;
            ${OUTPUT}
        }
    ""
end

case bool_0
    values { output bool out0 = true; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = true;
            ${OUTPUT}
        }
    ""
end

case bool_1
    values { output bool out0 = false; }
    both ""
        precision highp float;
        ${DECLARATIONS}
        void main()
        {
            out0 = false;
            ${OUTPUT}
        }
    ""
end

case const_float_global
     values { output float out0 = 1000.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant = 1000.0;
          void main()
          {
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_main
     values { output float out0 = -1000.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          void main()
          {
                const float theConstant = -1000.0;
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_function
     values { output float out0 = -0.012; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          float func()
          {
                const float theConstant = -0.012;
                return theConstant;
          }
          void main()
          {
                out0 = func();
                ${OUTPUT}
          }
     ""
end

case const_float_scope
     values { output float out0 = 1.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          void main()
          {
                {
                     const float theConstant = 1.0;
                     out0 = theConstant;
                }
                ${OUTPUT}
          }
     ""
end

case const_float_scope_shawdowing_1
     values { output float out0 = 1.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          void main()
          {
                const float theConstant = 100.0;
                {
                     const float theConstant = 1.0;
                     out0 = theConstant;
                }
                ${OUTPUT}
          }
     ""
end

case const_float_scope_shawdowing_2
     values { output float out0 = 1.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant = 100.0;
          void main()
          {
                {
                     const float theConstant = 1.0;
                     out0 = theConstant;
                }
                ${OUTPUT}
          }
     ""
end

case const_float_scope_shawdowing_3
     values { output float out0 = 1.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant = 100.0;
          void main()
          {
                const float theConstant = -100.0;
                {
                     const float theConstant = 1.0;
                     out0 = theConstant;
                }
                ${OUTPUT}
          }
     ""
end

case const_float_scope_shawdowing_4
     values { output float out0 = 2.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant = 100.0;
          float func()
          {
                const float theConstant = 2.0;
                return theConstant;
          }
          void main()
          {
                const float theConstant = -100.0;
                {
                     const float theConstant = 1.0;
                     out0 = func();
                }
                ${OUTPUT}
          }
     ""
end

case const_float_operations_with_const
     values { output float out0 = 21.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theGlobalConstant = 10.0;
          float func()
          {
                const float theConstant = 2.0;
                return theConstant;
          }
          void main()
          {
                const float theConstant = -100.0;
                {
                     const float theConstant = 1.0;
                     out0 = func() * theGlobalConstant + theConstant;
                }
                ${OUTPUT}
          }
     ""
end

case const_float_assignment_1
     values { output float out0 = 10.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          void main()
          {
                const float theConstant1 = 10.0;
                const float theConstant2 = theConstant1;
                out0 = theConstant2;
                ${OUTPUT}
          }
     ""
end

case const_float_assignment_2
     values { output float out0 = 10.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          void main()
          {
                const float theConstant1 = 10.0;
                {
                    const float theConstant2 = theConstant1;
                    out0 = theConstant2;
                }
                ${OUTPUT}
          }
     ""
end

case const_float_assignment_3
     values { output float out0 = 10.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant1 = 10.0;
          void main()
          {
                const float theConstant2 = theConstant1;
                out0 = theConstant2;
                ${OUTPUT}
          }
     ""
end

case const_float_assignment_4
     values { output float out0 = 10.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant1 = 10.0;
          float func()
          {
                const float theConstant2 = theConstant1;
                return theConstant2;
          }
          void main()
          {
                out0 = func();
                ${OUTPUT}
          }
     ""
end

case const_float_assign_uniform
     expect compile_fail
     values { output float out0 = 10.0; }
     both ""
          precision mediump float;
          ${DECLARATIONS}
          uniform float theUniform;
          void main()
          {
                const float theConstant = theUniform;
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_assign_varying
     expect compile_fail
     values { output float out0 = 10.0; }
     vertex ""
          ${VERTEX_DECLARATIONS}
          varying float theVarying;
          void main()
          {
                theVarying = 1.0;
                gl_Position = vec(1.0);
          }
     ""
     fragment ""
          precision mediump float;
          ${FRAGMENT_DECLARATIONS}
          varying float theVarying;
          void main()
          {
                const float theConstant = theVarying;
                out0 = theConstant;
                ${FRAGMENT_OUTPUT}
          }
     ""
end

case const_float_function_gotcha
     desc "Function constant parameters are not really constants, so using them as constant expressions should fail."
     expect compile_fail
     values { output float out0 = 20.0; }
     both ""
          precision mediump float;
          ${DECLARATIONS}
          float func(const float gotcha)
          {
                const float theConstant2 = gotcha;
                return theConstant2*2.0;
          }
          void main()
          {
                const float theConstant = 10.0;
                out0 = func(theConstant);
                ${OUTPUT}
          }
     ""
end

case const_float_from_int
     values { output float out0 = 10.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant = float(10);
          void main()
          {
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_from_vec2
     values { output float out0 = 10.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant = vec2(1.0, 10.0).y;
          void main()
          {
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_from_vec3
     values { output float out0 = 10.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant = vec3(1.0, 10.0, 20.0).y;
          void main()
          {
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_from_vec4
     values { output float out0 = 10.0; }

     both ""
          precision mediump float;
          ${DECLARATIONS}
          const float theConstant = vec4(1.0, 10.0, 20.0, -10.0).y;
          void main()
          {
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_assign_variable_1
     expect compile_fail
     values { output float out0 = 20.0; }
     both ""
          precision mediump float;
          ${DECLARATIONS}
          void main()
          {
                float theVariable = 20.0;
                const float theConstant = theVariable;
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_assign_variable_2
     expect compile_fail
     values { output float out0 = 50.0; }
     both ""
          precision mediump float;
          ${DECLARATIONS}
          void main()
          {
                float theVariable = 20.0;
                theVariable += 30.0;
                const float theConstant = theVariable;
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end

case const_float_assign_user_func
     expect compile_fail
     values { output float out0 = 50.0; }
     both ""
          precision mediump float;
          ${DECLARATIONS}
          float func()
          {
                return 50.0;
          }
          void main()
          {
                const float theConstant = func();
                out0 = theConstant;
                ${OUTPUT}
          }
     ""
end