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Diffstat (limited to 'source/blender/avi/intern/avirgb.c')
| -rw-r--r-- | source/blender/avi/intern/avirgb.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/source/blender/avi/intern/avirgb.c b/source/blender/avi/intern/avirgb.c new file mode 100644 index 00000000000..051c351a0f8 --- /dev/null +++ b/source/blender/avi/intern/avirgb.c @@ -0,0 +1,144 @@ +/** + * avirgb.c + * + * This is external code. Converts rgb-type avi-s. + * + * $Id$ + * + * ***** 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 ***** + * + */ + +#include "AVI_avi.h" +#include <stdlib.h> +#include <string.h> + +#include "MEM_guardedalloc.h" +#include "avirgb.h" + +/* implementation */ + +void *avi_converter_from_avi_rgb (AviMovie *movie, int stream, unsigned char *buffer, int *size) { + int x, y,i, rowstride; + unsigned char *buf; + AviBitmapInfoHeader *bi; + short bits= 32; + + bi= (AviBitmapInfoHeader *) movie->streams[stream].sf; + if (bi) bits= bi->BitCount; + + if (bits==16) { + unsigned short *pxl; + unsigned char *to; + #ifdef WORDS_BIGENDIAN + unsigned char *pxla; + #endif + + buf = MEM_mallocN (movie->header->Height * movie->header->Width * 3, "fromavirgbbuf"); + + y= movie->header->Height; + to= buf; + + while (y--) { + pxl= (unsigned short *) (buffer + y * movie->header->Width * 2); + + #ifdef WORDS_BIGENDIAN + pxla= (unsigned char *)pxl; + #endif + + x= movie->header->Width; + while (x--) { + #ifdef WORDS_BIGENDIAN + i= pxla[0]; + pxla[0]= pxla[1]; + pxla[1]= i; + + pxla+=2; + #endif + + *(to++)= ((*pxl>>10)&0x1f)*8; + *(to++)= ((*pxl>>5)&0x1f)*8; + *(to++)= (*pxl&0x1f)*8; + pxl++; + } + } + + MEM_freeN (buffer); + + return buf; + } else { + buf = MEM_mallocN (movie->header->Height * movie->header->Width * 3, "fromavirgbbuf"); + + rowstride = movie->header->Width*3; + if (bits!=16) if (movie->header->Width%2) rowstride++; + + for (y=0; y < movie->header->Height; y++) { + memcpy (&buf[y*movie->header->Width*3], &buffer[((movie->header->Height-1)-y)*rowstride], movie->header->Width*3); + } + + for (y=0; y < movie->header->Height*movie->header->Width*3; y+=3) { + i = buf[y]; + buf[y] = buf[y+2]; + buf[y+2] = i; + } + + MEM_freeN (buffer); + + return buf; + } +} + +void *avi_converter_to_avi_rgb (AviMovie *movie, int stream, unsigned char *buffer, int *size) { + int y, x, i, rowstride; + unsigned char *buf; + + *size= movie->header->Height * movie->header->Width * 3; + if (movie->header->Width%2) *size+= movie->header->Height; + + buf = MEM_mallocN (*size,"toavirgbbuf"); + + rowstride = movie->header->Width*3; + if (movie->header->Width%2) rowstride++; + + for (y=0; y < movie->header->Height; y++) { + memcpy (&buf[y*rowstride], &buffer[((movie->header->Height-1)-y)*movie->header->Width*3], movie->header->Width*3); + } + + for (y=0; y < movie->header->Height; y++) { + for (x=0; x < movie->header->Width*3; x+=3) { + i = buf[y*rowstride+x]; + buf[y*rowstride+x] = buf[y*rowstride+x+2]; + buf[y*rowstride+x+2] = i; + } + } + + MEM_freeN (buffer); + + return buf; +} |