InterlockedExchange function (HLSL reference)
Assigns value to dest and returns the original value.
void InterlockedExchange( in R dest, in T value, out T original_value );
The destination address.
The input value.
The original value.
This function does not return a value.
This operation can only be performed on scalar-typed resources and shared memory variables. There are two possible uses for this function. The first is when R is a shared memory variable type. In this case, the function performs the operation on the shared memory register referenced by dest. The second scenario is when R is a resource variable type. In this scenario, the function performs the operation on the resource location referenced by dest. This operation is only available when R is readable and writable.
Minimum Shader Model
This function is supported in the following shader models.
|Shader Model 5 and higher shader models||yes|
This function is supported in the following types of shaders: