LibTiff Mailing List

Hello everyone,

I'm trying to write a progressive image loader (loading the image into
memory) using libtiff. Now the best way to do this appears to be using the
RGBAImage interface and overriding the put callback. Now the thing that the
docuemntation doesn't make clear is how often and under what cases will this
callback be called? Is it called once for each strip or each tile? The x, y,
w and h parameters, are they called with a block only once, or can
coordinates from different calls overlap (ie two rectangles are specified by
two different calls, can some of there coordinates overlap?) I hope I've
made myself clear, and that's for your help :) 

Eric Dorland
dorland@lords.com
ICQ: #61138586


AWARE [SYSTEMS]		Imaging expertise for the Delphi developer
		TIFF and LibTiff Mailing List Archive
	LibTiff Mailing List TIFF and LibTiff Mailing List Archive February 2000 Previous Thread Next Thread Previous by Thread Next by Thread Previous by Date Next by Date Contact The TIFF Mailing List Homepage This list is run by Frank Warmerdam Archive maintained by AWare Systems	2000.02.22 17:54 "put Callback", by Eric Dorland Hello everyone, I'm trying to write a progressive image loader (loading the image into memory) using libtiff. Now the best way to do this appears to be using the RGBAImage interface and overriding the put callback. Now the thing that the docuemntation doesn't make clear is how often and under what cases will this callback be called? Is it called once for each strip or each tile? The x, y, w and h parameters, are they called with a block only once, or can coordinates from different calls overlap (ie two rectangles are specified by two different calls, can some of there coordinates overlap?) I hope I've made myself clear, and that's for your help :) Eric Dorland dorland@lords.com ICQ: #61138586

LibTiff Mailing List

2000.02.22 17:54 "put Callback", by Eric Dorland