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/* A test around use of an array like container. 
4
5Here we just fix the array size, so can test out other characteristics.
6
7indexOf can't compile because v == elements[i] cannot determine equality.
8
9It would seem like I should have an IEquality interface, that I could then make
10a T require. 
11
12Doesn't work because 
13
14.slang(29): error 30019: expected an expression of type 'Type', got 'T'
15            if (T::isEqual(v, elements[i]))
16
17 */
18
19//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name outputBuffer
20RWStructuredBuffer<float> outputBuffer;
21
22interface IEquality
23{
24    associatedtype Type;
25    static bool isEqual(Type a, Type b);
26};
27
28extension int : IEquality
29{
30    typedef int Type;	
31    static bool isEqual(Type a, Type b)
32    {
33        return a == b;
34    }
35};
36
37
38struct FixedArray<T : IEquality> 
39{
40    static const int SIZE = 4;
41    
42    [mutating] void setAt(int i, T value) { elements[i] = value; }
43    T getAt(int i) { return elements[i]; }
44    int indexOf(T v)
45    {
46        for (int i = 0; i < SIZE; ++i)
47        {
48            if (T::isEqual(v, elements[i]))
49            {
50                return i;
51            }
52            return -1;
53        }
54    }
55    T elements[SIZE];
56};
57
58[numthreads(4, 1, 1)]
59void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
60{
61    int index = dispatchThreadID.x;
62
63    FixedArray<int> arr;
64    arr.setAt(0, index);
65    
66	outputBuffer[index] = 1 + arr.getAt(0);
67}
68