Method
VipsImagereorder_prepare_many
Declaration [src]
int
vips_reorder_prepare_many (
VipsImage* image,
VipsRegion** regions,
VipsRect* r
)
Description [src]
Vips_reorder_prepare_many() runs vips_region_prepare() on each region in
regions, requesting the pixels in r.
It tries to request the regions in the order which will cause least recomputation. This can give a large speedup, in some cases.
See also: vips_region_prepare(), vips_reorder_margin_hint().
Parameters
regions |
An array of VipsRegion* |
The set of regions to prepare. |
|
| The data is owned by the caller of the function. | |
r |
VipsRect |
The |
|
| The data is owned by the caller of the function. |