| /* @(#) 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 |
| * 6/3/10 |
| * - don't im_invalidate() after paint, this now needs to be at a higher |
| * level |
| */ |
| |
| /* |
| |
| 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_IMAGE_SIZEOF_ELEMENT( im ); |
| 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; |
| } |
| |
| return( 0 ); |
| } |
| |