106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
/* @(#) Fill Rect r of image im with pels of colour ink. r can be any size and
|
|
* @(#) any position, we clip against the image size.
|
|
* @(#)
|
|
* @(#) int
|
|
* @(#) im_paintrect( IMAGE *im, Rect *r, PEL *ink )
|
|
* @(#)
|
|
* @(#)
|
|
*
|
|
* Copyright: J. Cupitt
|
|
* Written: 15/06/1992
|
|
* 22/7/93 JC
|
|
* - im_incheck() added
|
|
* 16/8/94 JC
|
|
* - im_incheck() changed to im_makerw()
|
|
* 5/12/06
|
|
* - im_invalidate() after paint
|
|
*/
|
|
|
|
/*
|
|
|
|
This file is part of VIPS.
|
|
|
|
VIPS is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
*/
|
|
|
|
/*
|
|
|
|
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
|
|
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif /*HAVE_CONFIG_H*/
|
|
#include <vips/intl.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <vips/vips.h>
|
|
|
|
#ifdef WITH_DMALLOC
|
|
#include <dmalloc.h>
|
|
#endif /*WITH_DMALLOC*/
|
|
|
|
/* Paint a rect of colour into an image.
|
|
*/
|
|
int
|
|
im_paintrect( IMAGE *im, Rect *r, PEL *ink )
|
|
{
|
|
int es = im->Bbits >> 3;
|
|
int ps = es * im->Bands;
|
|
int ls = ps * im->Xsize;
|
|
Rect image, clipped;
|
|
int x, y, b;
|
|
PEL *to;
|
|
PEL *q;
|
|
|
|
if( im_rwcheck( im ) )
|
|
return( -1 );
|
|
|
|
/* Find area we plot.
|
|
*/
|
|
image.left = 0;
|
|
image.top = 0;
|
|
image.width = im->Xsize;
|
|
image.height = im->Ysize;
|
|
im_rect_intersectrect( r, &image, &clipped );
|
|
|
|
/* Any points left to plot?
|
|
*/
|
|
if( im_rect_isempty( &clipped ) )
|
|
return( 0 );
|
|
|
|
/* Loop through image plotting where required.
|
|
*/
|
|
to = (PEL *) im->data + clipped.left * ps + clipped.top * ls;
|
|
for( y = 0; y < clipped.height; y++ ) {
|
|
q = to;
|
|
|
|
for( x = 0; x < clipped.width; x++ )
|
|
for( b = 0; b < ps; b++ )
|
|
*q++ = ink[b];
|
|
|
|
to += ls;
|
|
}
|
|
|
|
im_invalidate( im );
|
|
|
|
return( 0 );
|
|
}
|
|
|