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Diffstat (limited to 'source/blender/imbuf/intern/rotate.c')
-rw-r--r-- | source/blender/imbuf/intern/rotate.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/source/blender/imbuf/intern/rotate.c b/source/blender/imbuf/intern/rotate.c new file mode 100644 index 00000000000..edd82347a8c --- /dev/null +++ b/source/blender/imbuf/intern/rotate.c @@ -0,0 +1,71 @@ +/** + * + * ***** BEGIN GPL/BL DUAL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. The Blender + * Foundation also sells licenses for use in proprietary software under + * the Blender License. See http://www.blender.org/BL/ for information + * about this. + * + * 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 General Public License for more details. + * + * You should have received a copy of the GNU 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. + * + * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL/BL DUAL LICENSE BLOCK ***** + * rotate.c + * + * $Id$ + */ + +#ifdef WIN32 +#include "BLI_winstuff.h" +#endif +#include "BLI_blenlib.h" + +#include "imbuf.h" +#include "imbuf_patch.h" +#include "IMB_imbuf_types.h" +#include "IMB_imbuf.h" + +#include "IMB_allocimbuf.h" + +void IMB_flipy(struct ImBuf * ibuf) +{ + short x,y,backx; + unsigned int *top,*bottom,temp; + + if (ibuf == 0) return; + if (ibuf->rect == 0) return; + + x = ibuf->x; + y = ibuf->y; + backx = x<<1; + + top = ibuf->rect; + bottom = top + ((y-1) * x); + y >>= 1; + + for(;y>0;y--){ + for(x = ibuf->x; x > 0; x--){ + temp = *top; + *(top++) = *bottom; + *(bottom++) = temp; + } + bottom -= backx; + } +} |