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// scope.slang
2//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj
3//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj
4//TEST(compute):COMPARE_COMPUTE_EX:-cpu -compute -shaderobj
5
6// Confirm that scoping on enums and types works 
7
8//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
9RWStructuredBuffer<int> outputBuffer;
10
11enum Color
12{
13    Red,
14    Green = 2,
15    Blue,
16}
17
18struct Thing 
19{
20    int a; 
21    struct Another
22    {
23        int b;
24    }
25};
26
27int test(int val)
28{
29    Color c = Color.Red;
30
31    Thing::Another another;    
32    another.b = 20;
33
34    if(val > 1)
35    {
36        c = Color.Green;
37    }
38
39    if(c == Color::Red)
40    {
41        if((val & 1) != 0)
42        {
43            c = Color::Blue;
44        }
45    }
46
47    switch(c)
48    {
49    case Color::Red:
50        val = 1;
51        break;
52
53    case Color::Green:
54        val = 2;
55        break;
56
57    case Color::Blue:
58        val = 3;
59        break;
60
61    default:
62        val = -1;
63        break;
64    }
65
66    return (val << 4) + int(c) + another.b - 20;
67}
68
69[numthreads(4, 1, 1)]
70void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
71{
72    uint tid = dispatchThreadID.x;
73
74    int val = int(tid);
75    val = test(val);
76
77    outputBuffer[tid] = val;
78}