yum-mirror/slang

Making it easier to work with shaders

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

Anders LeinoMigrate render-test away from deprecated compile request API (#6514)f4d5372d3

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1//TEST(compute, vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=BUF):-vk -compute -entry computeMain -allow-glsl
2//TEST(compute, vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=BUF):-vk -compute -entry computeMain -allow-glsl -emit-spirv-directly
3//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=BUF):-wgpu -compute -entry computeMain -allow-glsl
4
5
6// There are some issues with the Metal backend when using glsl-style syntax - this should be fixed.
7//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=BUF):-metal -compute -entry computeMain -allow-glsl
8
9#version 430
10
11//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
12buffer MyBlockName2
13{
14    int data[];
15} outputBuffer;
16
17layout(local_size_x = 4) in;
18
19[shader("compute")]
20void computeMain(int3 dispatchThreadID : SV_DispatchThreadID)
21{
22    // There may be some issues with structure padding for global context containing
23    // global builtin variables.
24    // int idx = gl_GlobalInvocationID.x;
25    int idx = dispatchThreadID.x;
26
27    uint laneId = gl_SubgroupInvocationID;
28    // The laneCount will be dependent on target hardware. It seems a count of 1 is valid in spec. 
29    // For now we'll just check it's not 0.
30    uint laneCount = gl_SubgroupSize;
31    outputBuffer.data[idx] = int(((laneCount > 0) ? 0x100 : 0) + laneId);
32
33    // BUF: 100
34    // BUF-NEXT: 101
35    // BUF-NEXT: 102
36    // BUF-NEXT: 103
37}