mirror of
https://github.com/scummvm/scummvm.git
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104 lines
3.0 KiB
C++
104 lines
3.0 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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// Disable symbol overrides so that we can use system headers.
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#define FORBIDDEN_SYMBOL_ALLOW_ALL
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// HACK to allow building with the SDL backend on MinGW
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// see bug #1800764 "TOOLS: MinGW tools building broken"
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#ifdef main
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#undef main
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#endif // main
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#include "ultima1_resources.h"
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#include "file.h"
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#define FILE_BUFFER_SIZE 1024
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#define MD5_COMPUTE_SIZE 1024
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uint32 computeMD5(Common::File &f) {
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uint32 total = 0;
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f.seek(0);
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for (int idx = 0; idx < MD5_COMPUTE_SIZE; ++idx)
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total += f.readByte();
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f.seek(0);
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return total;
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}
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#define DATA_SEGMENT_OFFSET 0x40D0
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#define LOGO_HEIGHT 64
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#define LOGO_WIDTH1 199
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#define LOGO_WIDTH2 76
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#define LOGO_TABLE1 0x3262
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#define LOGO_TABLE2 0x4320
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void createLogo(Common::File &in, Common::MemFile &out) {
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int offsets[LOGO_HEIGHT][2];
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char buffer[LOGO_WIDTH1 + LOGO_WIDTH2 + 1];
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// Load in the tables
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in.seek(DATA_SEGMENT_OFFSET + LOGO_TABLE1);
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for (int y = 0; y < LOGO_HEIGHT; ++y)
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offsets[y][0] = in.readWord();
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in.seek(DATA_SEGMENT_OFFSET + LOGO_TABLE2);
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for (int y = 0; y < LOGO_HEIGHT; ++y)
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offsets[y][1] = in.readWord();
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// Convert the lines
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for (int y = 0; y < LOGO_HEIGHT; ++y) {
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in.seek(DATA_SEGMENT_OFFSET + offsets[y][0]);
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in.read(buffer, LOGO_WIDTH1 + 1);
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assert(buffer[LOGO_WIDTH1] == '\0');
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in.seek(DATA_SEGMENT_OFFSET + offsets[y][1]);
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in.read(buffer + LOGO_WIDTH1, LOGO_WIDTH2 + 1);
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assert(buffer[LOGO_WIDTH1 + LOGO_WIDTH2] == '\0');
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for (int x = 0; x < (LOGO_WIDTH1 + LOGO_WIDTH2); ++x)
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out.writeByte(buffer[x] == '*' ? 1 : 0);
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}
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}
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void writeUltima1Resources(Archive &a) {
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// Open up ultima1.exe for logo
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Common::File u1;
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if (!u1.open("Ultima 1/ultima.exe"))
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error("Could not find ultima.exe");
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if (computeMD5(u1) != 64620)
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error("Unknown version of Ultima 1 ultima.exe");
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// Add the Origin logo
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Common::MemFile logo;
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createLogo(u1, logo);
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a.add("ULTIMA1/LOGO", logo);
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// Add the flag data for the castle title screen
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Common::MemFile flags;
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u1.seek(DATA_SEGMENT_OFFSET + 0x124);
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for (int idx = 0; idx < 64 * 3; ++idx)
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flags.writeByte(u1.readByte() ? 10 : 11);
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a.add("ULTIMA1/FLAGS", flags);
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u1.close();
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}
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