data/gles3/shaders/constant_expressions.test

group trivial "Trivial expressions"

	case float
		version 300 es
		values { output float out0 = 5.0; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const float a = 5.0;
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case int
		version 300 es
		values { output int out0 = 5; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const int a = 5;
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case bool
		version 300 es
		values { output bool out0 = true; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const bool a = true;
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case cast
		version 300 es
		values { output float out0 = 1.0; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const float a = float(int(bool(true)));
				out0 = a;
				${OUTPUT}
			}
		""
	end

end # trivial

group operators "Operators"

	case math_float
		version 300 es
		values { output float out0 = 2.19; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const float a = 6.0/3.5 + 1.8*2.6 - 4.2;
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case math_vec
		version 300 es
		values { output float out0 = 15.0; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const vec3 a = (vec4(1.0, 2.0, 3.0, 4.0).zyx * vec3(1.0, 1.5, 3.0).xyz).xzy + (vec2(5.0)/vec2(2.5)).xxy;
				out0 = a.x + a.y + a.z;
				${OUTPUT}
			}
		""
	end

	case math_int
		version 300 es
		values { output int out0 = 7; }
		both ""
			#version 300 es
			precision highp int;
			${DECLARATIONS}

			void main()
			{
				const int a = 25%7 + 2*3 - 9/3;
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case math_ivec
		version 300 es
		values { output int out0 = 21; }
		both ""
			#version 300 es
			precision highp int;
			${DECLARATIONS}

			void main()
			{
				const ivec3 a = ivec2(25%7, 4).xxy + ivec4(1*3, 9/3, 1+2, 8/4).xyz;
				out0 = a.x + a.y + a.z;
				${OUTPUT}
			}
		""
	end

	case math_mat
		version 300 es
		values { output float out0 = 8.0; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const mat3 a = mat3(3.0) * mat3(4.0);
				const mat4 b = mat4(a[1][1])*2.0;
				const mat2 c = mat2(b[0][0]) / 3.0;
				out0 = c[0][0]+c[1][0];
				${OUTPUT}
			}
		""
	end

	case bitwise
		version 300 es
		values { output int out0 = 678332; }
		both ""
			#version 300 es
			precision highp int;
			${DECLARATIONS}

			void main()
			{
				const int a = (((0xABBA<<4) ^ 0xCAFE) | (0xDCBA & (0xABCD>>2))) ^ (~0xDEAD & 0xBEEF);
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case logical
		version 300 es
		values { output bool out0 = true; }
		both ""
			#version 300 es
			precision highp int;
			${DECLARATIONS}

			void main()
			{
				const bool a = (!false || false) && (true ^^ false);
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case compare
		version 300 es
		values { output bool out0 = true; }
		both ""
			#version 300 es
			precision highp int;
			${DECLARATIONS}

			void main()
			{
				const bool a = (false == false) && (true != false) && (1 < 2) && (3 <= 3) && ((1 > 1) != (1 >= 1));
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case selection
		version 300 es
		values { output float out0 = 5.3; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const float a = false ? 0.0 : (true ? 5.3 : 1.0);
				out0 = a;
				${OUTPUT}
			}
		""
	end

end # operators

group complex_types "Arrays & Structs"

	case struct
		version 300 es
		values { output float out0 = 260.922; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			struct S
			{
				vec4 a;
				int  b;
			};

			void main()
			{
				const S s = S(vec4(1.5), 123);
				out0 = length(s.a.xy)*float(s.b);
				${OUTPUT}
			}
		""
	end

	case nested_struct
		version 300 es
		values { output float out0 = 965.9; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			struct S
			{
				vec4 v;
				int  i;
			};

			struct T
			{
				S s;
				bool b;
				int i;
			};

			struct U
			{
				S s;
				T t;
			};

			void main()
			{
				const S s = S(vec4(1.5), 123);
				const T t = T(s, false, 3);
				const U u = U(s, t);
				const U v = U(S(vec4(1.3), 4), T(S(vec4(2.0), 5), true, 6));
				out0 = float(u.s.i*v.t.i + v.t.s.i)*v.s.v.x; // float(123*6 + 5)*1.3
				${OUTPUT}
			}
		""
	end

	case array_size
		version 300 es
		values { output int out0 = 1; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const int a[max(-1, 1)] = int[1](1);
				out0 = a[0];
				${OUTPUT}
			}
		""
	end

	case array_length
		version 300 es
		values { output int out0 = 2; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const int a[1] = int[1](1);
				out0 = a.length() + a[0];
				${OUTPUT}
			}
		""
	end

	case array
		version 300 es
		values { output float out0 = 4.0; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const float a[1+2+5] = float[8](0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0);
				const float f = a[1+2+4];
				out0 = f + float(a.length()-8);
				${OUTPUT}
			}
		""
	end

end # complex_types

group other "Other operations"

	case switch_case
		version 300 es
		values
		{
			input float in0 = [ 0.0 | 1.0 | 2.0 | 3.0 | 4.0 | 5.0 ];
			output int out0 = [ 0 | 1 | 2 | 3 | 4 | 10];
		}

		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const int _0 = 0;
				const int _1 = 1;
				const int _2 = 2;
				const int _3 = 3;
				const int _4 = 4;

				switch(int(in0))
				{
					case _0:
						out0 = 0;
						break;
					case _1:
						out0 = 1;
						break;
					case _2:
						out0 = 2;
						break;
					case _3:
						out0 = 3;
						break;
					case _4:
						out0 = 4;
						break;
					case 5:
						out0 = 10;
						break;
					default:
						out0 = 100;

				}
				${OUTPUT}
			}
		""
	end

	case nested_builtin_funcs
		version 300 es
		values { output float out0 = 3.05; }
		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			void main()
			{
				const float a = sqrt( atan(sin(1.5)/cos(1.5)) /*1.5*/ * log2(exp2(log(exp(6.2) + 0.1)) + 0.1) /*~6.2*/);
				out0 = a;
				${OUTPUT}
			}
		""
	end

	case complex
		version 300 es
		values
		{
			input float in0 = [ 0.0 | 1.0 | 2.0 | 3.0 | 4.0 | 5.0 ];
			output int out0 = [ 0 | 1 | 2 | 3 | 4 | 10];
		}

		both ""
			#version 300 es
			precision highp float;
			${DECLARATIONS}

			struct T
			{
				vec4 v;
			};

			struct S
			{
				T t;
				int i;
				bool b;
			};

			void main()
			{
				const T   t  = T(vec4(1.0));
				const S   s  = S(t, 42, true);
				const int _0 = int(sin(0.0));
				const int _1 = int(1.0);
				const int _2 = 2 + int(float(_0>_1));
				const int _3 = min(gl_MaxVertexAttribs, 16)/4 - 1;
				const int _4 = min(gl_MaxDrawBuffers, 4);
				const ivec4 nums = ivec4(0, 1, 2, 3);

				switch(int(in0))
				{
					case int(float(_0)):
						out0 = ((true!=false) && (!false)) ? 0 : 25;
						break;
					case ivec3(_1).x:
						out0 = 3*18/9-5;
						break;
					case nums[_2]:
						out0 = int(length(vec4(1.0))+0.001);
						break;
					case _3:
						out0 = 3;
						break;
					case clamp(_4, 1, 6):
						out0 = (s.i-2)/10;
						break;
					case max(3, 5):
						out0 = 10;
						break;
					default:
						out0 = 100;

				}
				${OUTPUT}
			}
		""
	end
end