46 lines
1.2 KiB
HLSL
46 lines
1.2 KiB
HLSL
int3 tint_first_leading_bit(int3 v) {
|
|
uint3 x = ((v < (0).xxx) ? uint3(~(v)) : uint3(v));
|
|
const uint3 b16 = (bool3((x & (4294901760u).xxx)) ? (16u).xxx : (0u).xxx);
|
|
x = (x >> b16);
|
|
const uint3 b8 = (bool3((x & (65280u).xxx)) ? (8u).xxx : (0u).xxx);
|
|
x = (x >> b8);
|
|
const uint3 b4 = (bool3((x & (240u).xxx)) ? (4u).xxx : (0u).xxx);
|
|
x = (x >> b4);
|
|
const uint3 b2 = (bool3((x & (12u).xxx)) ? (2u).xxx : (0u).xxx);
|
|
x = (x >> b2);
|
|
const uint3 b1 = (bool3((x & (2u).xxx)) ? (1u).xxx : (0u).xxx);
|
|
const uint3 is_zero = ((x == (0u).xxx) ? (4294967295u).xxx : (0u).xxx);
|
|
return int3((((((b16 | b8) | b4) | b2) | b1) | is_zero));
|
|
}
|
|
|
|
void firstLeadingBit_35053e() {
|
|
int3 res = tint_first_leading_bit((1).xxx);
|
|
}
|
|
|
|
struct tint_symbol {
|
|
float4 value : SV_Position;
|
|
};
|
|
|
|
float4 vertex_main_inner() {
|
|
firstLeadingBit_35053e();
|
|
return (0.0f).xxxx;
|
|
}
|
|
|
|
tint_symbol vertex_main() {
|
|
const float4 inner_result = vertex_main_inner();
|
|
tint_symbol wrapper_result = (tint_symbol)0;
|
|
wrapper_result.value = inner_result;
|
|
return wrapper_result;
|
|
}
|
|
|
|
void fragment_main() {
|
|
firstLeadingBit_35053e();
|
|
return;
|
|
}
|
|
|
|
[numthreads(1, 1, 1)]
|
|
void compute_main() {
|
|
firstLeadingBit_35053e();
|
|
return;
|
|
}
|