data/gles3/shaders/indexing.test

# https://github.com/KhronosGroup/WebGL/blob/master/sdk/tests/conformance2/glsl3/vector-dynamic-indexing.html
group moredynamic "More dynamic indexing tests"

	case matrix_twice
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void main() {
				mat2 m = mat2(0.0, 0.0, 0.0, 1.0);
				f = m[u_zero + 1][u_zero + 1];
				${OUTPUT}
			}
		""
	end

	case with_value_from_indexing_expression
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void main() {
				ivec2 i = ivec2(0, 2);
				vec4 v = vec4(0.0, 0.2, 1.0, 0.4);
				f = v[i[u_zero + 1]];
				${OUTPUT}
			}
		""
	end

	case lvalue
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void main() {
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				v[u_zero + 1] = 5.0;
				vec4 expected = vec4(1.0, 5.0, 3.0, 4.0);
				f = 1.0 - distance(v, expected);
				${OUTPUT}
			}
		""
	end

	case lvalue_with_value_from_indexing_expression
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void main() {
				ivec2 i = ivec2(0, 2);
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				v[i[u_zero + 1]] = 5.0;
				vec4 expected = vec4(1.0, 2.0, 5.0, 4.0);
				f = 1.0 - distance(v, expected);
				${OUTPUT}
			}
		""
	end

	case builtin_fncall_out_parameter
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void main() {
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				modf(5.5, v[u_zero + 3]);
				vec4 expected = vec4(1.0, 2.0, 3.0, 5.0);
				f = 1.0 - distance(v, expected);
				${OUTPUT}
			}
		""
	end

	case user_defined_fncall_out_parameter
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void foo(out float f) {
				modf(5.5, f);
			}
			void main() {
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				foo(v[u_zero + 3]);
				vec4 expected = vec4(1.0, 2.0, 3.0, 5.0);
				f = 1.0 - distance(v, expected);
				${OUTPUT}
			}
		""
	end

	case user_defined_fncall_inout_parameter
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void foo(inout float f) {
				float g = f + 2.5;
				modf(g, f);
			}
			void main() {
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				foo(v[u_zero + 2]);
				vec4 expected = vec4(1.0, 2.0, 5.0, 4.0);
				f = 1.0 - distance(v, expected);
				${OUTPUT}
			}
		""
	end

	case with_side_effects
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			int sideEffectCounter = 0;
			int funcWithSideEffects() {
				sideEffectCounter++;
				return 2;
			}
			void main() {
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				v[funcWithSideEffects()] = 5.0;
				vec4 expected = vec4(1.0, 2.0, 5.0, 4.0);
				f = 1.0 - distance(v, expected);
				if (sideEffectCounter != 1) {
					f = 0.0;
				}
				${OUTPUT}
			}
		""
	end

	case inout_with_side_effects
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			int sideEffectCounter = 0;
			int funcWithSideEffects() {
				sideEffectCounter++;
				return 2;
			}
			void main() {
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				v[funcWithSideEffects()]++;
				vec4 expected = vec4(1.0, 2.0, 4.0, 4.0);
				f = 1.0 - distance(v, expected);
				if (sideEffectCounter != 1) {
					f = 0.0;
				}
				${OUTPUT}
			}
		""
	end

	case user_defined_fncall_inout_parameter_with_index_with_side_effects
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			int sideEffectCounter = 0;
			void foo(inout float f) {
				float g = f + 2.5;
				modf(g, f);
			}
			int funcWithSideEffects() {
				sideEffectCounter++;
				return 2;
			}
			void main() {
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				foo(v[funcWithSideEffects()]);
				vec4 expected = vec4(1.0, 2.0, 5.0, 4.0);
				f = 1.0 - distance(v, expected);
				if (sideEffectCounter != 1) {
					f = 0.0;
				}
				${OUTPUT}
			}
		""
	end

	case lvalue_with_uint
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void main() {
				vec4 v = vec4(1.0, 2.0, 3.0, 4.0);
				v[u_zero] = 5.0;
				vec4 expected = vec4(5.0, 2.0, 3.0, 4.0);
				f = 1.0 - distance(v, expected);
				${OUTPUT}
			}
		""
	end

	case uniform
		version 300 es
		values { output float f = 0.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform vec4 u_zeroVec;
			uniform int u_zero;
			void main() {
				f = u_zeroVec[u_zero];
				${OUTPUT}
			}
		""
	end

	case sequence_vector_lvalue
		version 300 es
		values { output bool success = true; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			int sideEffectCounter = 0;
			float func() {
				++sideEffectCounter;
				return -1.0;
			}
			void main() {
				vec4 v = vec4(0.0, 2.0, 4.0, 6.0);
				float f = (func(), (++v[u_zero + sideEffectCounter]));
				success = (abs(f - 3.0) < 0.01 && abs(v[1] - 3.0) < 0.01 && sideEffectCounter == 1);
				${OUTPUT}
			}
		""
	end

	case matrix_twice_in_lvalue
		version 300 es
		values { output float f = 1.0; }
		both ""
			#version 300 es
			precision mediump float;
			${DECLARATIONS}

			uniform int u_zero;
			void main() {
				mat2 m = mat2(0.0, 0.0, 0.0, 0.0);
				m[u_zero + 1][u_zero + 1] = float(u_zero + 1);
				f = m[1][1];
				${OUTPUT}
			}
		""
	end

end # moredynamic