yum-mirror/slang

Making it easier to work with shaders

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

Yong HeAllow interface methods to have default implementations. (#7439)6a23949f0

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1//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK): -shaderobj -output-using-type
2
3// Test that a default interface method can be differentiable.
4
5interface IFoo<int v>
6{
7    [Differentiable]
8    float getVal(float x);
9
10    [Differentiable]
11    float getGreaterVal<int y>(float x)
12    {
13        return getVal(x) + y + v;
14    }
15}
16
17struct Impl : IFoo<2>
18{
19    [Differentiable]
20    float getVal(float x)
21    {
22        return x*x;
23    }
24    
25    // Using the default implementation for getGreaterVal.
26}
27
28[Differentiable]
29float test<int y, T:IFoo<y>>(T v, float x) { return v.getGreaterVal<1>(x); }
30
31//TEST_INPUT: set resultBuffer = out ubuffer(data=[0 0 0 0], stride=4)
32RWStructuredBuffer<float> resultBuffer;
33
34[numthreads(1,1,1)]
35void computeMain()
36{
37    Impl impl = {};
38    var dpx = diffPair(3.0);
39    bwd_diff(test)(impl, dpx, 1.0f);
40    resultBuffer[0] = dpx.d;
41    // CHECK: 6.0
42}