yum-mirror/slang

Making it easier to work with shaders

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

Yong HeWarning on lossy implicit casts. (#2367)adaea0e99

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1// interface-local.slang
2
3// Test basic use of an interface as an existential type
4// for a local variable, instead of just as a constraint
5// on a generic type parameter.
6//
7// Because the existential is created and then used inside
8// the same function, we can eliminate it via simple
9// local optimizations.
10
11// on a generic type parameter.
12
13//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj
14//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -dx12 -shaderobj
15//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj
16//TEST(compute):COMPARE_COMPUTE_EX:-cpu -compute -shaderobj
17
18
19interface IHelper
20{
21	int getVal();
22}
23
24struct HelperImpl : IHelper
25{
26	int storedVal;
27
28	int getVal() { return storedVal; }
29}
30
31int test(int val)
32{
33    HelperImpl helperImpl = { val };
34
35    IHelper existentialHelper = helperImpl;
36
37    return existentialHelper.getVal();
38}
39
40//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=gOutputBuffer
41RWStructuredBuffer<int> gOutputBuffer;
42
43[numthreads(4, 1, 1)]
44void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
45{
46	uint tid = dispatchThreadID.x;
47	int inputVal = int(tid);
48	int outputVal = test(inputVal);
49	gOutputBuffer[tid] = outputVal;
50}