49 lines
1.2 KiB
Plaintext
49 lines
1.2 KiB
Plaintext
|
#include <metal_stdlib>
|
||
|
|
|
||
|
|
using namespace metal;
|
||
|
|
uint3 tint_first_trailing_bit(uint3 v) {
|
||
|
|
uint3 x = uint3(v);
|
||
|
|
uint3 const b16 = select(uint3(16u), uint3(0u), bool3((x & uint3(65535u))));
|
||
|
|
x = (x >> b16);
|
||
|
|
uint3 const b8 = select(uint3(8u), uint3(0u), bool3((x & uint3(255u))));
|
||
|
|
x = (x >> b8);
|
||
|
|
uint3 const b4 = select(uint3(4u), uint3(0u), bool3((x & uint3(15u))));
|
||
|
|
x = (x >> b4);
|
||
|
|
uint3 const b2 = select(uint3(2u), uint3(0u), bool3((x & uint3(3u))));
|
||
|
|
x = (x >> b2);
|
||
|
|
uint3 const b1 = select(uint3(1u), uint3(0u), bool3((x & uint3(1u))));
|
||
|
|
uint3 const is_zero = select(uint3(0u), uint3(4294967295u), (x == uint3(0u)));
|
||
|
|
return uint3((((((b16 | b8) | b4) | b2) | b1) | is_zero));
|
||
|
|
}
|
||
|
|
|
||
|
|
void firstTrailingBit_cb51ce() {
|
||
|
|
uint3 res = tint_first_trailing_bit(uint3());
|
||
|
|
}
|
||
|
|
|
||
|
|
struct tint_symbol {
|
||
|
|
float4 value [[position]];
|
||
|
|
};
|
||
|
|
|
||
|
|
float4 vertex_main_inner() {
|
||
|
|
firstTrailingBit_cb51ce();
|
||
|
|
return float4();
|
||
|
|
}
|
||
|
|
|
||
|
|
vertex tint_symbol vertex_main() {
|
||
|
|
float4 const inner_result = vertex_main_inner();
|
||
|
|
tint_symbol wrapper_result = {};
|
||
|
|
wrapper_result.value = inner_result;
|
||
|
|
return wrapper_result;
|
||
|
|
}
|
||
|
|
|
||
|
|
fragment void fragment_main() {
|
||
|
|
firstTrailingBit_cb51ce();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
kernel void compute_main() {
|
||
|
|
firstTrailingBit_cb51ce();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|