diff options
Diffstat (limited to 'source/blender/io/avi/intern/avi_rgb32.c')
-rw-r--r-- | source/blender/io/avi/intern/avi_rgb32.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/source/blender/io/avi/intern/avi_rgb32.c b/source/blender/io/avi/intern/avi_rgb32.c new file mode 100644 index 00000000000..3efa4814c70 --- /dev/null +++ b/source/blender/io/avi/intern/avi_rgb32.c @@ -0,0 +1,94 @@ +/* + * 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. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. + * All rights reserved. + */ + +/** \file + * \ingroup avi + * + * This is external code. Converts between rgb32 and avi. + */ + +#include <stdlib.h> +#include <string.h> + +#include "MEM_guardedalloc.h" + +#include "IMB_imbuf.h" + +#include "AVI_avi.h" +#include "avi_rgb32.h" + +void *avi_converter_from_rgb32(AviMovie *movie, int stream, unsigned char *buffer, size_t *size) +{ + unsigned char *buf; + + (void)stream; /* unused */ + + *size = (size_t)movie->header->Height * (size_t)movie->header->Width * 3; + buf = imb_alloc_pixels( + movie->header->Height, movie->header->Width, 3, sizeof(unsigned char), "fromrgb32buf"); + if (!buf) { + return NULL; + } + + size_t rowstridea = movie->header->Width * 3; + size_t rowstrideb = movie->header->Width * 4; + + for (size_t y = 0; y < movie->header->Height; y++) { + for (size_t x = 0; x < movie->header->Width; x++) { + buf[y * rowstridea + x * 3 + 0] = buffer[y * rowstrideb + x * 4 + 3]; + buf[y * rowstridea + x * 3 + 1] = buffer[y * rowstrideb + x * 4 + 2]; + buf[y * rowstridea + x * 3 + 2] = buffer[y * rowstrideb + x * 4 + 1]; + } + } + + MEM_freeN(buffer); + + return buf; +} + +void *avi_converter_to_rgb32(AviMovie *movie, int stream, unsigned char *buffer, size_t *size) +{ + unsigned char *buf; + unsigned char *to, *from; + + (void)stream; /* unused */ + + *size = (size_t)movie->header->Height * (size_t)movie->header->Width * 4; + buf = imb_alloc_pixels( + movie->header->Height, movie->header->Width, 4, sizeof(unsigned char), "torgb32buf"); + if (!buf) { + return NULL; + } + + memset(buf, 255, *size); + + to = buf; + from = buffer; + size_t i = (size_t)movie->header->Height * (size_t)movie->header->Width; + + while (i--) { + memcpy(to, from, 3); + to += 4; + from += 3; + } + + MEM_freeN(buffer); + + return buf; +} |