4b7c7dab9e
* Support multiple destination operands on shader IR and shuffle predicates * Cache version change
9 lines
359 B
GLSL
9 lines
359 B
GLSL
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;
|
|
} |