49 lines
1.3 KiB
Plaintext
49 lines
1.3 KiB
Plaintext
#include <metal_stdlib>
|
|
|
|
using namespace metal;
|
|
int2 tint_first_leading_bit(int2 v) {
|
|
uint2 x = select(uint2(v), uint2(~(v)), (v < int2(0)));
|
|
uint2 const b16 = select(uint2(0u), uint2(16u), bool2((x & uint2(4294901760u))));
|
|
x = (x >> b16);
|
|
uint2 const b8 = select(uint2(0u), uint2(8u), bool2((x & uint2(65280u))));
|
|
x = (x >> b8);
|
|
uint2 const b4 = select(uint2(0u), uint2(4u), bool2((x & uint2(240u))));
|
|
x = (x >> b4);
|
|
uint2 const b2 = select(uint2(0u), uint2(2u), bool2((x & uint2(12u))));
|
|
x = (x >> b2);
|
|
uint2 const b1 = select(uint2(0u), uint2(1u), bool2((x & uint2(2u))));
|
|
uint2 const is_zero = select(uint2(0u), uint2(4294967295u), (x == uint2(0u)));
|
|
return int2((((((b16 | b8) | b4) | b2) | b1) | is_zero));
|
|
}
|
|
|
|
void firstLeadingBit_a622c2() {
|
|
int2 res = tint_first_leading_bit(int2(1));
|
|
}
|
|
|
|
struct tint_symbol {
|
|
float4 value [[position]];
|
|
};
|
|
|
|
float4 vertex_main_inner() {
|
|
firstLeadingBit_a622c2();
|
|
return float4(0.0f);
|
|
}
|
|
|
|
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() {
|
|
firstLeadingBit_a622c2();
|
|
return;
|
|
}
|
|
|
|
kernel void compute_main() {
|
|
firstLeadingBit_a622c2();
|
|
return;
|
|
}
|
|
|