79 lines
2.4 KiB
C++
79 lines
2.4 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common/endian.h"
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#include "glk/scott/types.h"
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#include "glk/scott/unp64/unp64.h"
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#include "glk/scott/unp64/exo_util.h"
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namespace Glk {
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namespace Scott {
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void scnTCScrunch(UnpStr *unp) {
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byte *mem;
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int q, p;
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if (unp->_idFlag)
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return;
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mem = unp->_mem;
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if (unp->_depAdr == 0) {
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if (u32eq(mem + 0x819, 0x018536A9) && mem[0x81d] == 0x4c) {
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p = READ_LE_UINT16(&mem[0x81e]); // mem[0x81e] | mem[0x81f] << 8;
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if (mem[p] == 0xa2 && mem[p + 2] == 0xbd &&
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u32eq(mem + p + 0x05, 0xE801109D) &&
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(u32eq(mem + p + 0x38, 0x01524CFB) ||
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(u32eq(mem + p + 0x38, 0x8DE1A9FB) &&
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u32eq(mem + p + 0x3c, 0x524C0328)))) {
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unp->_depAdr = 0x334;
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unp->_forced = 0x819;
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unp->_endAdr = 0x2d;
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}
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} else if (u32eq(mem + 0x819, 0x018534A9) && mem[0x81d] == 0x4c) {
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p = READ_LE_UINT16(&mem[0x81e]); // mem[0x81e] | mem[0x81f] << 8;
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if (mem[p] == 0xa2 && mem[p + 2] == 0xbd &&
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u32eq(mem + p + 0x05, 0xE801109D) &&
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u32eq(mem + p + 0x38, 0x01304CFB)) {
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unp->_depAdr = 0x334;
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unp->_forced = 0x818;
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if (mem[unp->_forced] != 0x78)
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unp->_forced++;
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unp->_endAdr = 0x2d;
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unp->_retAdr = READ_LE_UINT16(&mem[p + 0xd9]); // mem[p + 0xd9] | mem[p + 0xda] << 8;
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p += 0xc8;
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q = p + 6;
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for (; p < q; p += 3) {
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if (mem[p] == 0x20 &&
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u16gteq(mem + p + 1, 0xa000) &&
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u16lteq(mem + p + 1, 0xbfff)) {
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mem[p] = 0x2c;
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}
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}
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}
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}
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if (unp->_depAdr) {
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unp->_idFlag = 1;
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return;
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}
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}
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}
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} // End of namespace Scott
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} // End of namespace Glk
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