50 lines
1.3 KiB
HLSL
50 lines
1.3 KiB
HLSL
int4 tint_count_trailing_zeros(int4 v) {
|
|
uint4 x = uint4(v);
|
|
const uint4 b16 = (bool4((x & (65535u).xxxx)) ? (0u).xxxx : (16u).xxxx);
|
|
x = (x >> b16);
|
|
const uint4 b8 = (bool4((x & (255u).xxxx)) ? (0u).xxxx : (8u).xxxx);
|
|
x = (x >> b8);
|
|
const uint4 b4 = (bool4((x & (15u).xxxx)) ? (0u).xxxx : (4u).xxxx);
|
|
x = (x >> b4);
|
|
const uint4 b2 = (bool4((x & (3u).xxxx)) ? (0u).xxxx : (2u).xxxx);
|
|
x = (x >> b2);
|
|
const uint4 b1 = (bool4((x & (1u).xxxx)) ? (0u).xxxx : (1u).xxxx);
|
|
const uint4 is_zero = ((x == (0u).xxxx) ? (1u).xxxx : (0u).xxxx);
|
|
return int4((((((b16 | b8) | b4) | b2) | b1) + is_zero));
|
|
}
|
|
|
|
RWByteAddressBuffer prevent_dce : register(u0, space2);
|
|
|
|
void countTrailingZeros_1dc84a() {
|
|
int4 arg_0 = (1).xxxx;
|
|
int4 res = tint_count_trailing_zeros(arg_0);
|
|
prevent_dce.Store4(0u, asuint(res));
|
|
}
|
|
|
|
struct tint_symbol {
|
|
float4 value : SV_Position;
|
|
};
|
|
|
|
float4 vertex_main_inner() {
|
|
countTrailingZeros_1dc84a();
|
|
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() {
|
|
countTrailingZeros_1dc84a();
|
|
return;
|
|
}
|
|
|
|
[numthreads(1, 1, 1)]
|
|
void compute_main() {
|
|
countTrailingZeros_1dc84a();
|
|
return;
|
|
}
|