From OpenGL Reference
Jump to navigation Jump to search

Atomically compute the minimum of a value with an existing value in memory, store that value and return the original value.


uint imageAtomicMin( gimage1D image, int P, uint data );
uint imageAtomicMin( gimage2D image, ivec2 P, uint data );
uint imageAtomicMin( gimage3D image, ivec3 P, uint data );
uint imageAtomicMin( gimage2DRect image, ivec2 P, uint data );
uint imageAtomicMin( gimageCube image, ivec3 P, uint data );
uint imageAtomicMin( gbufferImage image, int P, uint data );
uint imageAtomicMin( gimage1DArray image, ivec2 P, uint data );
uint imageAtomicMin( gimage2DArray image, ivec3 P, uint data );
uint imageAtomicMin( gimageCubeArray image, ivec3 P, uint data );
uint imageAtomicMin( gimage2DMS image, ivec2 P, int sample, uint data );
uint imageAtomicMin( gimage2DMSArray image, ivec3 P, int sample, uint data );
int imageAtomicMin( gimage1D image, int P, int data );
int imageAtomicMin( gimage2D image, ivec2 P, int data );
int imageAtomicMin( gimage3D image, ivec3 P, int data );
int imageAtomicMin( gimage2DRect image, ivec2 P, int data );
int imageAtomicMin( gimageCube image, ivec3 P, int data );
int imageAtomicMin( gbufferImage image, int P, int data );
int imageAtomicMin( gimage1DArray image, ivec2 P, int data );
int imageAtomicMin( gimage2DArray image, ivec3 P, int data );
int imageAtomicMin( gimageCubeArray image, ivec3 P, int data );
int imageAtomicMin( gimage2DMS image, ivec2 P, int sample, int data );
int imageAtomicMin( gimage2DMSArray image, ivec3 P, int sample, int data );


image - Specify the image unit into which to store data .
P - Specify the coordinate at which to store the data.
sample - When present, specifies the sample within the image to store into.
data - Specifies the data of which to take the minimum with that stored in the image.


 imageAtomicMin atomically computes a new value by finding the minimum of the value of data and the contents of the texel at coordinate P and sample in the image bound to uint image , stores that value into the image and returns the original value.

Version Support[edit]

imageAtomicMin 4.2+

See Also[edit]

 imageLoad , imageStore , imageAtomicAdd , imageAtomicMax , imageAtomicXor , imageAtomicOr , imageAtomicAnd , imageAtomicExchange , imageAtomicCompSwap 


Copyright© 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999.