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Fix out-of-bounds shader thread shuffle (#2605)

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* Fix out-of-bounds shader thread shuffle

* Shader cache version bump
This commit is contained in:
gdkchan 2021-08-30 14:02:40 -03:00 • committed by GitHub
parent 82cefc8dd3
commit 416dc8fde4
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 10 additions and 7 deletions
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6
Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/ShuffleUp.glsl
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@ -1,9 +1,9 @@
float Helper_ShuffleUp(float x, uint index, uint mask, out bool valid)
{
uint clamp = mask & 0x1fu;
uint segMask = (mask >> 8) & 0x1fu;
uint minThreadId = gl_SubGroupInvocationARB & segMask;
uint srcThreadId = gl_SubGroupInvocationARB - index;
valid = srcThreadId >= minThreadId;
return valid ? readInvocationARB(x, srcThreadId) : x;
valid = int(srcThreadId) >= int(minThreadId);
float v = readInvocationARB(x, srcThreadId);
return valid ? v : x;
}