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https://github.com/libretro/scummvm.git
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70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001/2002 The ScummVM project
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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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* 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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* 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
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#include <stdafx.h>
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#include "codec44.h"
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#include "chunk.h"
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#include "blitter.h"
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bool Codec44Decoder::decode(Blitter & dst, Chunk & src) {
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int32 size_line, num;
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int32 length = src.getSize() - 14;
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int32 width = getRect().width();
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int32 height = getRect().height();
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byte *src2 = (byte *)malloc(length);
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byte *org_src2 = src2;
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src.read(src2, length);
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byte *dst2 = _buffer;
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byte val;
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do {
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size_line = READ_LE_UINT16(src2);
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src2 += 2;
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length -= 2;
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while (size_line != 0) {
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num = *src2++;
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val = *src2++;
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memset(dst2, val, num);
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dst2 += num;
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length -= 2;
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size_line -= 2;
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if (size_line != 0) {
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num = READ_LE_UINT16(src2) + 1;
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src2 += 2;
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memcpy(dst2, src2, num);
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dst2 += num;
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src2 += num;
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length -= num + 2;
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size_line -= num + 2;
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}
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}
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dst2--;
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} while (length > 1);
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dst.blit(_buffer, width * height);
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free(org_src2);
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return true;
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}
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