The OpenVX Specification  a73e458
The parameter state type constants.

Detailed Description

Macros

#define VX_PARAMETER_STATE_OPTIONAL   (VX_ENUM(VX_ID_KHRONOS, VX_ENUM_PARAMETER_STATE, 0x1))
 The parameter may be unspecified. The kernel takes care not to deference optional parameters until it is certain they are valid.
 
#define VX_PARAMETER_STATE_REQUIRED   (VX_ENUM(VX_ID_KHRONOS, VX_ENUM_PARAMETER_STATE, 0x0))
 Default. The parameter must be supplied. If not set, during Verify, an error is returned.