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https://github.com/encounter/dawn-cmake.git
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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
596 B
HLSL
26 lines
596 B
HLSL
int tint_extract_bits(int v, uint offset, uint count) {
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const uint s = min(offset, 32u);
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const uint e = min(32u, (s + count));
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const uint shl = (32u - e);
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const uint shr = (shl + s);
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const int shl_result = ((shl < 32u) ? (v << shl) : 0);
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return ((shr < 32u) ? (shl_result >> shr) : ((shl_result >> 31u) >> 1u));
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}
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void f_1() {
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int v = 0;
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uint offset_1 = 0u;
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uint count = 0u;
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const int x_16 = v;
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const uint x_17 = offset_1;
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const uint x_18 = count;
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const int x_14 = tint_extract_bits(x_16, x_17, x_18);
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return;
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}
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[numthreads(1, 1, 1)]
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void f() {
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f_1();
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return;
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}
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