yum-mirror/slang

Making it easier to work with shaders

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

Tim FoleyConvert more tests to use shader objects (#1659)2a5d5b323

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1// paren-insertion-bug.slang
2
3// Confirm that precedence is correctly handled
4// for cast from scalar to vector.
5
6//TEST(compute):COMPARE_COMPUTE: -shaderobj
7
8int test(float a)
9{
10	// This line performs a cast from a scalar result to a vector
11	float3 b = pow(a, 2.0);
12
13	// If the computation of `b` above gets folded into this
14	// line of code (and we expect it to) we need to correctly
15	// parenthesize the generated cast so that the `.xyz` swizzle
16	// applies to the result of the cast, rather than the input.
17	//
18	return int(float4(b.xyz * 2.0, 1.0).x);
19}
20
21
22//TEST_INPUT: ubuffer(data=[0 0 0 0], stride=4):out,name outputBuffer
23RWStructuredBuffer<uint> outputBuffer;
24
25[numthreads(4, 1, 1)]
26void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
27{
28	uint tid = dispatchThreadID.x;
29
30	uint inVal = tid;
31	uint outVal = test(inVal);
32
33	outputBuffer[tid] = outVal;
34}