yum-mirror/slang

Making it easier to work with shaders

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

Yong HeSupport `constref` parameters passing. (#3249)b7d318f48

master
branchesmasterall refs →
1.2 KiB41 linesraw
1//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-slang -compute -shaderobj -output-using-type
2//TEST(compute, vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute -shaderobj -output-using-type
3//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-cuda -compute -shaderobj -output-using-type
4//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-cpu -compute -shaderobj -output-using-type
5
6//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
7RWStructuredBuffer<float> outputBuffer;
8
9struct NonDiff
10{
11    float a;
12}
13
14[Differentiable]
15float myFunc(__constref NonDiff fIn, float x, __constref no_diff float y)
16{
17    return x * fIn.a + y;
18}
19
20// test that the ordering of no_diff and __constref doesn't matter.
21[Differentiable]
22float myFunc2(__constref NonDiff fIn, float x, no_diff __constref float y)
23{
24    return x * fIn.a + y;
25}
26
27[numthreads(1, 1, 1)]
28void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
29{
30    float a = 10.0;
31    NonDiff fIn = { a };
32    DifferentialPair<float> dpx = DifferentialPair<float>(4.f, 1.f);
33    float rs = __fwd_diff(myFunc)(fIn, dpx, 1.0).d;
34    float rs2 = __fwd_diff(myFunc2)(fIn, dpx, 1.0).d;
35
36    // CHECK: 10.0
37    // CHECK: 10.0
38
39    outputBuffer[0] = rs;
40    outputBuffer[1] = rs2;
41}