46 lines
1.3 KiB
HLSL
46 lines
1.3 KiB
HLSL
|
int2 tint_count_leading_zeros(int2 v) {
|
||
|
|
uint2 x = uint2(v);
|
||
|
|
const uint2 b16 = ((x <= uint2((65535u).xx)) ? uint2((16u).xx) : uint2((0u).xx));
|
||
|
|
x = (x << b16);
|
||
|
|
const uint2 b8 = ((x <= uint2((16777215u).xx)) ? uint2((8u).xx) : uint2((0u).xx));
|
||
|
|
x = (x << b8);
|
||
|
|
const uint2 b4 = ((x <= uint2((268435455u).xx)) ? uint2((4u).xx) : uint2((0u).xx));
|
||
|
|
x = (x << b4);
|
||
|
|
const uint2 b2 = ((x <= uint2((1073741823u).xx)) ? uint2((2u).xx) : uint2((0u).xx));
|
||
|
|
x = (x << b2);
|
||
|
|
const uint2 b1 = ((x <= uint2((2147483647u).xx)) ? uint2((1u).xx) : uint2((0u).xx));
|
||
|
|
const uint2 is_zero = ((x == uint2((0u).xx)) ? uint2((1u).xx) : uint2((0u).xx));
|
||
|
|
return int2((((((b16 | b8) | b4) | b2) | b1) + is_zero));
|
||
|
|
}
|
||
|
|
|
||
|
|
void countLeadingZeros_858d40() {
|
||
|
|
int2 res = tint_count_leading_zeros(int2(0, 0));
|
||
|
|
}
|
||
|
|
|
||
|
|
struct tint_symbol {
|
||
|
|
float4 value : SV_Position;
|
||
|
|
};
|
||
|
|
|
||
|
|
float4 vertex_main_inner() {
|
||
|
|
countLeadingZeros_858d40();
|
||
|
|
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() {
|
||
|
|
countLeadingZeros_858d40();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
[numthreads(1, 1, 1)]
|
||
|
|
void compute_main() {
|
||
|
|
countLeadingZeros_858d40();
|
||
|
|
return;
|
||
|
|
}
|