Andrea Weikert
d40162bc1a
* Scaled down image can be smaller than icon - bad memory access * Also needed to copy float buffer for exr images * rectcpy only copied first row There probably is some unnessary copying, will check with a little more time. For now better be safe since it's no huge amount of mem that is copied.
155 lines
3.4 KiB
C
155 lines
3.4 KiB
C
/**
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*
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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* allocimbuf.c
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*
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* $Id$
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*/
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#include "BLI_blenlib.h"
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#include "imbuf.h"
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#include "imbuf_patch.h"
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#include "IMB_imbuf_types.h"
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#include "IMB_imbuf.h"
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#include "IMB_allocimbuf.h"
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void IMB_rectcpy(struct ImBuf *dbuf, struct ImBuf *sbuf, int destx,
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int desty, int srcx, int srcy, int width, int height)
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{
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unsigned int *drect, *srect;
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float *drectf = NULL;
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float *srectf = NULL;
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int tmp, do_float = 0;
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if (dbuf == NULL) return;
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if (sbuf->rect_float) do_float = 1;
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if (destx < 0){
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srcx -= destx ;
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width += destx ;
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destx = 0;
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}
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if (srcx < 0){
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destx -= srcx ;
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width += destx ;
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srcx = 0;
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}
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if (desty < 0){
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srcy -= desty ;
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height += desty ;
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desty = 0;
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}
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if (srcy < 0){
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desty -= srcy ;
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height += desty ;
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srcy = 0;
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}
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tmp = dbuf->x - destx;
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if (width > tmp) width = tmp;
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tmp = dbuf->y - desty;
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if (height > tmp) height = tmp;
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drect = dbuf->rect + desty * dbuf->x + destx;
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if (do_float) drectf = dbuf->rect_float + desty * dbuf->x + destx;
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destx = dbuf->x;
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if (sbuf){
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tmp = sbuf->x - srcx;
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if (width > tmp) width = tmp;
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tmp = sbuf->y - srcy;
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if (height > tmp) height = tmp;
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if (width <= 0) return;
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if (height <= 0) return;
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srect = sbuf->rect;
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srect += srcy * sbuf->x;
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srect += srcx;
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if (do_float) {
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srectf = sbuf->rect_float;
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srectf += srcy * sbuf->x;
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srectf += srcx;
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}
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srcx = sbuf->x;
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} else{
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if (width <= 0) return;
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if (height <= 0) return;
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srect = drect;
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srectf = drectf;
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srcx = destx;
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}
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for (;height > 0; height--){
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memcpy(drect,srect, width * sizeof(int));
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drect += destx;
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srect += srcx;
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if (do_float) {
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memcpy(drectf,srectf, width * sizeof(float) * 4);
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drectf += destx;
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srectf += srcx;
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}
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}
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}
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void IMB_rectfill(struct ImBuf *drect, float col[4])
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{
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int num;
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unsigned int *rrect = drect->rect;
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unsigned char *spot;
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num = drect->x * drect->y;
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for (;num > 0; num--) {
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spot = (unsigned char *)rrect;
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spot[0] = (int)(col[0]*255);
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spot[1] = (int)(col[1]*255);
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spot[2] = (int)(col[2]*255);
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spot[3] = (int)(col[3]*255);
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*rrect++;
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}
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if(drect->rect_float) {
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float *rrectf = drect->rect_float;
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num = drect->x * drect->y;
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for (;num > 0; num--) {
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*rrectf++ = col[0];
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*rrectf++ = col[1];
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*rrectf++ = col[2];
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*rrectf++ = col[3];
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}
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}
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}
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