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https://github.com/libretro/scummvm.git
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63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/endian.h"
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namespace Scumm {
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void smush_decode_codec1(byte *dst, const byte *src, int left, int top, int width, int height, int pitch) {
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byte val, code;
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int32 length;
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int h = height, size_line;
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dst += top * pitch;
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for (h = 0; h < height; h++) {
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size_line = READ_LE_UINT16(src);
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src += 2;
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dst += left;
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while (size_line > 0) {
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code = *src++;
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size_line--;
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length = (code >> 1) + 1;
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if (code & 1) {
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val = *src++;
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size_line--;
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if (val)
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memset(dst, val, length);
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dst += length;
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} else {
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size_line -= length;
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while (length--) {
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val = *src++;
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if (val)
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*dst = val;
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dst++;
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}
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}
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}
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dst += pitch - left - width;
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}
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}
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} // End of namespace Scumm
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