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// bit-field.slang
//TEST(compute, vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=BUFFER):-vk -compute -output-using-type
// Test direct SPIR-V emit on bit field operations.
//TEST_INPUT:set resultBuffer = out ubuffer(data=[0 0 0 0], stride=4)
RWStructuredBuffer<uint> resultBuffer;
enum Flag
{
AAA = 1,
BBB = 2,
CCC = 4,
}
struct Data
{
uint flags;
[mutating] void setFlag(Flag g, bool v)
{
const uint bit = uint(g) << 8;
if (v) flags |= bit;
else flags &= ~bit;
}
bool hasFlag(Flag g)
{
const uint bit = uint(g) << 8;
return (flags & bit) != 0;
}
}
//TEST_INPUT: set Uniforms.d = new Data{0};
cbuffer Uniforms
{
Data d;
}
// BUFFER: 1
// BUFFER: 1
// BUFFER: 1
// BUFFER: 0
[numthreads(1,1,1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
Data d1 = d;
d1.setFlag(Flag.BBB, true);
d1.setFlag(Flag.AAA, true);
resultBuffer[0] = d1.hasFlag(Flag.AAA) ? 1 : 0;
resultBuffer[1] = d1.hasFlag(Flag.BBB) ? 1 : 0;
d1.setFlag(Flag.BBB, false);
resultBuffer[2] = d1.hasFlag(Flag.AAA) ? 1 : 0;
resultBuffer[3] = d1.hasFlag(Flag.BBB) ? 1 : 0;
}
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