150 lines
3.6 KiB
C
150 lines
3.6 KiB
C
/*
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* ***** BEGIN GPL 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.
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 LICENSE BLOCK *****
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*
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*/
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/** \file blender/avi/intern/avi_rgb.c
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* \ingroup avi
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*
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* This is external code. Converts rgb-type avi-s.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "MEM_guardedalloc.h"
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#include "AVI_avi.h"
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#include "avi_rgb.h"
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/* implementation */
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void *avi_converter_from_avi_rgb(AviMovie *movie, int stream, unsigned char *buffer, int *size)
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{
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int x, y, i, rowstride;
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unsigned char *buf;
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AviBitmapInfoHeader *bi;
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short bits = 32;
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(void)size; /* unused */
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bi = (AviBitmapInfoHeader *) movie->streams[stream].sf;
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if (bi) bits = bi->BitCount;
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if (bits == 16) {
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unsigned short *pxl;
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unsigned char *to;
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#ifdef __BIG_ENDIAN__
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unsigned char *pxla;
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#endif
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buf = MEM_mallocN(movie->header->Height * movie->header->Width * 3, "fromavirgbbuf");
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y = movie->header->Height;
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to = buf;
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while (y--) {
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pxl = (unsigned short *) (buffer + y * movie->header->Width * 2);
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#ifdef __BIG_ENDIAN__
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pxla = (unsigned char *)pxl;
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#endif
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x = movie->header->Width;
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while (x--) {
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#ifdef __BIG_ENDIAN__
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i = pxla[0];
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pxla[0] = pxla[1];
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pxla[1] = i;
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pxla += 2;
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#endif
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*(to++) = ((*pxl >> 10) & 0x1f) * 8;
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*(to++) = ((*pxl >> 5) & 0x1f) * 8;
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*(to++) = (*pxl & 0x1f) * 8;
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pxl++;
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}
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}
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MEM_freeN(buffer);
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return buf;
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}
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else {
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buf = MEM_mallocN(movie->header->Height * movie->header->Width * 3, "fromavirgbbuf");
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rowstride = movie->header->Width * 3;
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if ((bits != 16) && (movie->header->Width % 2)) rowstride++;
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for (y = 0; y < movie->header->Height; y++) {
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memcpy(&buf[y * movie->header->Width * 3], &buffer[((movie->header->Height - 1) - y) * rowstride], movie->header->Width * 3);
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}
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for (y = 0; y < movie->header->Height * movie->header->Width * 3; y += 3) {
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i = buf[y];
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buf[y] = buf[y + 2];
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buf[y + 2] = i;
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}
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MEM_freeN(buffer);
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return buf;
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}
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}
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void *avi_converter_to_avi_rgb(AviMovie *movie, int stream, unsigned char *buffer, int *size)
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{
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int y, x, i, rowstride;
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unsigned char *buf;
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(void)stream; /* unused */
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*size = movie->header->Height * movie->header->Width * 3;
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if (movie->header->Width % 2) *size += movie->header->Height;
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buf = MEM_mallocN(*size, "toavirgbbuf");
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rowstride = movie->header->Width * 3;
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if (movie->header->Width % 2) rowstride++;
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for (y = 0; y < movie->header->Height; y++) {
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memcpy(&buf[y * rowstride], &buffer[((movie->header->Height - 1) - y) * movie->header->Width * 3], movie->header->Width * 3);
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}
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for (y = 0; y < movie->header->Height; y++) {
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for (x = 0; x < movie->header->Width * 3; x += 3) {
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i = buf[y * rowstride + x];
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buf[y * rowstride + x] = buf[y * rowstride + x + 2];
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buf[y * rowstride + x + 2] = i;
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}
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}
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MEM_freeN(buffer);
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return buf;
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}
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