47 lines
1.2 KiB
HLSL
47 lines
1.2 KiB
HLSL
int4 tint_first_leading_bit(int4 v) {
|
|
uint4 x = ((v < (0).xxxx) ? uint4(~(v)) : uint4(v));
|
|
const uint4 b16 = (bool4((x & (4294901760u).xxxx)) ? (16u).xxxx : (0u).xxxx);
|
|
x = (x >> b16);
|
|
const uint4 b8 = (bool4((x & (65280u).xxxx)) ? (8u).xxxx : (0u).xxxx);
|
|
x = (x >> b8);
|
|
const uint4 b4 = (bool4((x & (240u).xxxx)) ? (4u).xxxx : (0u).xxxx);
|
|
x = (x >> b4);
|
|
const uint4 b2 = (bool4((x & (12u).xxxx)) ? (2u).xxxx : (0u).xxxx);
|
|
x = (x >> b2);
|
|
const uint4 b1 = (bool4((x & (2u).xxxx)) ? (1u).xxxx : (0u).xxxx);
|
|
const uint4 is_zero = ((x == (0u).xxxx) ? (4294967295u).xxxx : (0u).xxxx);
|
|
return int4((((((b16 | b8) | b4) | b2) | b1) | is_zero));
|
|
}
|
|
|
|
void firstLeadingBit_c1f940() {
|
|
int4 arg_0 = (0).xxxx;
|
|
int4 res = tint_first_leading_bit(arg_0);
|
|
}
|
|
|
|
struct tint_symbol {
|
|
float4 value : SV_Position;
|
|
};
|
|
|
|
float4 vertex_main_inner() {
|
|
firstLeadingBit_c1f940();
|
|
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_c1f940();
|
|
return;
|
|
}
|
|
|
|
[numthreads(1, 1, 1)]
|
|
void compute_main() {
|
|
firstLeadingBit_c1f940();
|
|
return;
|
|
}
|