Struct AllocOptions

Structure controlling an allocation of memory


						
				struct AllocOptions
				;

Fields

Name	Type	Description
`flags`	`AllocFlags`	Control flags
`memTypeIndexMask`	`uint`	mask of memory type indices (0b0101 means indices 0 and 2) that, if not zero, will constrain MemoryRequirement.memTypeMask
`preferredProps`	`MemProps`	MemProps bits that are optional but are preferred to be present. Allocation will favor memory types with these bits if available, but may fallback to other memory types.
`requiredProps`	`MemProps`	MemProps bits that must be set. Allocation will fail if it can't allocate a memory type satisfies all bits.
`usage`	`MemoryUsage`	Intended usage. Will affect preferredBits and requiredBits;

Name	Type	Description
`forUsage`[set]	`AllocOptions`	Initializes an AllocOptions with usage

Name	Description
`withFlags` (flags)	set flags to options
`withPreferredProps` (props)	set preferredProps to options
`withRequiredBits` (props)	set requiredProps to options
`withTypeIndexMask` (indexMask)	set type index mask to options