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revert recent changes to nohalo/vsqbs

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revert the changes to nohalo/vsqbs that were suppoed to switch to corner
convention, they broke addressing

this needs rethinking
This commit is contained in:
John Cupitt 2013-01-16 11:50:34 +00:00
parent 9599b5dc92
commit c570bf902e
2 changed files with 8 additions and 4 deletions
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8
libvips/resample/nohalo.cpp
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@ -230,6 +230,10 @@
* http://doi.acm.org/10.1145/1557626.1557657.
*/
/* Uncomment to enable bounds checking for VIPS_REGION_ADDR().
*/
#define DEBUG
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
@ -1489,8 +1493,8 @@ vips_interpolate_nohalo_interpolate( VipsInterpolate* restrict interpolate,
*
* It's 2 not 0 since we ask for a window_offset of 2 at the bottom.
*/
const int ix = (int) absolute_x;
const int iy = (int) absolute_y;
const int ix = (int) (absolute_x + 0.5);
const int iy = (int) (absolute_y + 0.5);
/*
* Move the pointer to (the first band of) the top/left pixel of the

4
libvips/resample/vsqbs.cpp
View File

@ -313,8 +313,8 @@ vips_interpolate_vsqbs_interpolate( VipsInterpolate* restrict interpolate,
*
* It's 1 not 0 since we ask for a window_offset of 1 at the bottom.
*/
const int ix = (int) absolute_x;
const int iy = (int) absolute_y;
const int ix = (int) (absolute_x + 0.5);
const int iy = (int) (absolute_y + 0.5);
/*
* Move the pointer to (the first band of) the top/left pixel of the