46 lines
1.1 KiB
HLSL
46 lines
1.1 KiB
HLSL
|
int tint_first_leading_bit(int v) {
|
||
|
|
uint x = ((v < 0) ? uint(~(v)) : uint(v));
|
||
|
|
const uint b16 = (bool((x & 4294901760u)) ? 16u : 0u);
|
||
|
|
x = (x >> b16);
|
||
|
|
const uint b8 = (bool((x & 65280u)) ? 8u : 0u);
|
||
|
|
x = (x >> b8);
|
||
|
|
const uint b4 = (bool((x & 240u)) ? 4u : 0u);
|
||
|
|
x = (x >> b4);
|
||
|
|
const uint b2 = (bool((x & 12u)) ? 2u : 0u);
|
||
|
|
x = (x >> b2);
|
||
|
|
const uint b1 = (bool((x & 2u)) ? 1u : 0u);
|
||
|
|
const uint is_zero = ((x == 0u) ? 4294967295u : 0u);
|
||
|
|
return int((((((b16 | b8) | b4) | b2) | b1) | is_zero));
|
||
|
|
}
|
||
|
|
|
||
|
|
void firstLeadingBit_57a1a3() {
|
||
|
|
int res = tint_first_leading_bit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct tint_symbol {
|
||
|
|
float4 value : SV_Position;
|
||
|
|
};
|
||
|
|
|
||
|
|
float4 vertex_main_inner() {
|
||
|
|
firstLeadingBit_57a1a3();
|
||
|
|
return float4(0.0f, 0.0f, 0.0f, 0.0f);
|
||
|
|
}
|
||
|
|
|
||
|
|
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_57a1a3();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
[numthreads(1, 1, 1)]
|
||
|
|
void compute_main() {
|
||
|
|
firstLeadingBit_57a1a3();
|
||
|
|
return;
|
||
|
|
}
|