imageAtomicCompSwap on 64 bits?

Gaming and Visualization Technologies APIs OpenGL
1

Hello,

On NVidia hardware (say, Fermi and/or Kepler) we have an atomicCompSwap on 64 bits integers (NV_shader_buffer_store). Do we have an imageAtomicCompSwap on 64 bits formats?

Thanks -

2

Looking at the spec for ARB_shader_image_load_store it doesn’t look like 64 bit is supported, unfortunately.

imageAtomicCompSwap() compares the value of  and the contents of
the selected texel.  If the values are equal, the new value is given by
; otherwise, it is taken from the original value loaded from the
texel.  These functions support 32-bit signed and unsigned integer
operands.
3

Ok thanks - I was hopping there might be an extension for this …