yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

jsmall-nvidiaLanguage experiments (#2068)447b7e0e2

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1//DISABLE_TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj
2
3/* This test trys to specialize an algorithm through generic parameters. 
4
5Using parameters in this way ensures the algorithm in function form 
6will have those values known at compile time, and presumably lead to a specialized version.
7
8Does not work because
9
10.slang(24): error 30019: expected an expression of type 'int', got 'Enum'
11    let v = doThing<true, false, Enum::A>();
12                                     ^      
13                                   
14Note that docs say doesn't support any other than int, but error is a bit confusing. No error at declaration.
15*/
16
17//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name outputBuffer
18RWStructuredBuffer<int> outputBuffer;
19
20enum class Enum
21{
22    A, B
23};
24
25int doThing<let a : bool, let b : int, let c : Enum>()
26{
27    if (a)
28    {
29        return 1;
30    }
31    return 0;
32    // A more complex scenario
33    //return a ? b + b + int(c) : b - int(c);
34}
35
36[numthreads(4, 1, 1)]
37void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
38{    
39    int index = dispatchThreadID.x;
40    
41    let v = doThing<true, false, Enum::A>();
42    
43    outputBuffer[dispatchThreadID.x] = v;
44}