ryujinx/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/ShuffleUp.glsl

8 lines
326 B
GLSL

float Helper_ShuffleUp(float x, uint index, uint mask)
{
uint clamp = mask & 0x1fu;
uint segMask = (mask >> 8) & 0x1fu;
uint minThreadId = gl_SubGroupInvocationARB & segMask;
uint srcThreadId = gl_SubGroupInvocationARB - index;
return (srcThreadId >= minThreadId) ? readInvocationARB(x, srcThreadId) : x;
}