// Runtime blend modes require specific main signatures.
// Ensure that signatures intended for other runtime effect types don't work.

// Expect 5 errors

half4 main() { return half4(1); }
half4 main(half4 src) { return src; }
half4 main(half2 coords, half4 src) { return src; }
half4 main(half2 coords, half4 src, half4 dst) { return src * dst; }
half4 main(half4 src, half4 dst, half4 bonusColor) { return src * dst; }

half4 main(half4 src, half4 dst) { return src * dst; }  // the correct signature is allowed

/*%%*
'main' parameters must be (vec4|float4|half4, vec4|float4|half4)
'main' parameters must be (vec4|float4|half4, vec4|float4|half4)
unknown identifier 'src'
'main' parameters must be (vec4|float4|half4, vec4|float4|half4)
unknown identifier 'src'
'main' parameters must be (vec4|float4|half4, vec4|float4|half4)
unknown identifier 'src'
unknown identifier 'dst'
'main' parameters must be (vec4|float4|half4, vec4|float4|half4)
unknown identifier 'src'
unknown identifier 'dst'
*%%*/