yum-mirror/slang

Making it easier to work with shaders

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

sricker-nvidiaFix broken -emit-spirv-via-glsl test option (#7091)b39ec87cc

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1//TEST:COMPARE_COMPUTE(filecheck-buffer=BUF): -vk -output-using-type -emit-spirv-directly
2//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0 0 0], stride=4):out,name=outputBuffer
3RWStructuredBuffer<int32_t> outputBuffer;
4
5//TEST_INPUT:set input = ubuffer(data=[0xC0A0], stride=4)
6RWStructuredBuffer<uint32_t> input;
7
8[shader("compute")]
9[numthreads(1, 1, 1)]
10void computeMain(
11    uint3 tid : SV_DispatchThreadID)
12{
13    uint16_t a = uint16_t(input[0] & 0xFFFF);
14    int16_t b = bit_cast<int16_t>(a);
15
16    outputBuffer[0] = bitfieldExtract(a, 14, 2);
17    outputBuffer[1] = bitfieldExtract(b, 13, 3);    // 0b110, with sign extend, it will be 0xFFFFFFFE => -2
18    // BUF: 3
19    // BUF: -2
20
21    uint8_t c = uint8_t(input[0] & 0xFF);
22    int8_t d = bit_cast<int8_t>(c);
23
24    outputBuffer[2] = bitfieldExtract(c, 5, 3);     // b101 = 5
25    outputBuffer[3] = bitfieldExtract(d, 5, 3);     // 0b101, with sign extend, it will be 0xFFFFFFFD => -3
26    // BUF: 5
27    // BUF: -3
28
29    outputBuffer[4] = bitfieldInsert(a, 0x03U, 8, 2);   // 0xC3A0 = 50080 (unsigned)
30    outputBuffer[5] = bitfieldInsert(b, 0x03,  8, 2);    // 0xC3A0 = -15456 (signed)
31    // BUF: 50080
32    // BUF: -15456
33
34    outputBuffer[6] = bitfieldInsert(c, 0x03U, 3, 2);   // 0xB8 = 184  (unsigned)
35    outputBuffer[7] = bitfieldInsert(d, 0x03,  3, 2);    // 0xB8 = -72 (signed)
36    // BUF: 184
37    // BUF: -72
38}