50 lines
1.3 KiB
HLSL
50 lines
1.3 KiB
HLSL
int2 tint_first_leading_bit(int2 v) {
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uint2 x = ((v < (0).xx) ? uint2(~(v)) : uint2(v));
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const uint2 b16 = (bool2((x & (4294901760u).xx)) ? (16u).xx : (0u).xx);
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x = (x >> b16);
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const uint2 b8 = (bool2((x & (65280u).xx)) ? (8u).xx : (0u).xx);
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x = (x >> b8);
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const uint2 b4 = (bool2((x & (240u).xx)) ? (4u).xx : (0u).xx);
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x = (x >> b4);
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const uint2 b2 = (bool2((x & (12u).xx)) ? (2u).xx : (0u).xx);
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x = (x >> b2);
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const uint2 b1 = (bool2((x & (2u).xx)) ? (1u).xx : (0u).xx);
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const uint2 is_zero = ((x == (0u).xx) ? (4294967295u).xx : (0u).xx);
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return int2((((((b16 | b8) | b4) | b2) | b1) | is_zero));
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}
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RWByteAddressBuffer prevent_dce : register(u0, space2);
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void firstLeadingBit_a622c2() {
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int2 arg_0 = (1).xx;
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int2 res = tint_first_leading_bit(arg_0);
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prevent_dce.Store2(0u, asuint(res));
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}
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struct tint_symbol {
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float4 value : SV_Position;
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};
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float4 vertex_main_inner() {
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firstLeadingBit_a622c2();
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return (0.0f).xxxx;
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}
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tint_symbol vertex_main() {
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const float4 inner_result = vertex_main_inner();
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tint_symbol wrapper_result = (tint_symbol)0;
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wrapper_result.value = inner_result;
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return wrapper_result;
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}
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void fragment_main() {
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firstLeadingBit_a622c2();
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return;
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}
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[numthreads(1, 1, 1)]
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void compute_main() {
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firstLeadingBit_a622c2();
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return;
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}
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