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// kernels.slang
// This file demonstrates how ordinary shader code can make use of
// a standalone GPU printing library implemented in `printing.slang`.
//
// The first step for using a module of Slang code is to `import` it.
//
import printing;
//
// The `import` declaration above brings all the types and functions
// declared in the `printing` module (in `printing.slang`) into
// scope so that our code can use them.
// For simplicity, we will define a single compute shader that does
// some simple printing.
//
[shader("compute")]
[numthreads(32)]
void computeMain(uint3 tid : SV_DispatchThreadID)
{
// The `printing` module defines two main printing routines.
//
// The first is a `println` function in the style of Java,
// which takes zero or more arguments and prints them all
// followed by a newline.
//
// HACK: We are having to explicitly call `getStringHash` here
// because the print implementation wants to write out strings
// in terms of their hash code, and the current Slang implementation
// of `getStringHash` only applies to string literals.
//
println("hello from thread number ", tid.x);
// The second facility supported by `printing.slang` is a C-style
// `printf()` function.
//
printf_("printf from thread 0x%x\n", tid.x);
}
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