tests/language-feature/shader-params/entry-point-uniform-params.slang


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

// entry-point-uniform-params.slang

//TEST(compute):COMPARE_COMPUTE: -shaderobj
//TEST(compute):COMPARE_COMPUTE:-cuda -shaderobj
//TEST(compute):COMPARE_COMPUTE:-cpu -shaderobj

// Test that a shader can be written that
// only uses entry point `uniform` parameters,
// without any global parameters.

struct Data
{
	int a;
	int b;
}

int test(int val, int a, int b)
{
	return a*(val+1) + b*(val+2);
}

[numthreads(4, 1, 1)]
[shader("compute")]
void computeMain(

//TEST_INPUT:uniform(data=[256 1]):name=d
	uniform Data d,

//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
	uniform RWStructuredBuffer<int> outputBuffer,

	uint3 dispatchThreadID : SV_DispatchThreadID)
{
    uint tid = dispatchThreadID.x;
    int inVal = tid;
    int outVal = test(inVal, d.a, d.b);
    outputBuffer[tid] = outVal;
}