forked from Mirror/Ryujinx
11 lines
No EOL
435 B
GLSL
11 lines
No EOL
435 B
GLSL
float Helper_ShuffleDown(float x, uint index, uint mask, out bool valid)
|
|
{
|
|
uint clamp = mask & 0x1fu;
|
|
uint segMask = (mask >> 8) & 0x1fu;
|
|
uint minThreadId = gl_SubGroupInvocationARB & segMask;
|
|
uint maxThreadId = minThreadId | (clamp & ~segMask);
|
|
uint srcThreadId = gl_SubGroupInvocationARB + index;
|
|
valid = srcThreadId <= maxThreadId;
|
|
float v = readInvocationARB(x, srcThreadId);
|
|
return valid ? v : x;
|
|
} |