mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-07-08 14:15:58 +00:00
a54df5eca5
This CL fix the extractBits polyfill, used for D3D12 backend on windows. With this patch the related CTS would get pass. Fixed: tint:1775 Change-Id: I15636bb55af502fff773c19f03b4c3c9e99b63fd Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/112207 Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com> Kokoro: Kokoro <noreply+kokoro@google.com>
26 lines
660 B
HLSL
26 lines
660 B
HLSL
uint3 tint_extract_bits(uint3 v, uint offset, uint count) {
|
|
const uint s = min(offset, 32u);
|
|
const uint e = min(32u, (s + count));
|
|
const uint shl = (32u - e);
|
|
const uint shr = (shl + s);
|
|
const uint3 shl_result = ((shl < 32u) ? (v << uint3((shl).xxx)) : (0u).xxx);
|
|
return ((shr < 32u) ? (shl_result >> uint3((shr).xxx)) : ((shl_result >> (31u).xxx) >> (1u).xxx));
|
|
}
|
|
|
|
void f_1() {
|
|
uint3 v = (0u).xxx;
|
|
uint offset_1 = 0u;
|
|
uint count = 0u;
|
|
const uint3 x_16 = v;
|
|
const uint x_17 = offset_1;
|
|
const uint x_18 = count;
|
|
const uint3 x_14 = tint_extract_bits(x_16, x_17, x_18);
|
|
return;
|
|
}
|
|
|
|
[numthreads(1, 1, 1)]
|
|
void f() {
|
|
f_1();
|
|
return;
|
|
}
|