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Diffstat (limited to 'examples/gpu-printing/kernels.slang')
| -rw-r--r-- | examples/gpu-printing/kernels.slang | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/examples/gpu-printing/kernels.slang b/examples/gpu-printing/kernels.slang new file mode 100644 index 000000000..ec4533958 --- /dev/null +++ b/examples/gpu-printing/kernels.slang @@ -0,0 +1,38 @@ +// 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(getStringHash("hello from thread number "), tid.x); + + // The second facility supported by `printing.slang` is a C-style + // `printf()` function. + // + printf(getStringHash("printf from thread 0x%x\n"), tid.x); +} |