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https://github.com/libretro/scummvm.git
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125 lines
3.2 KiB
C++
125 lines
3.2 KiB
C++
/* ResidualVM - A 3D game interpreter
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*
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* ResidualVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the AUTHORS
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* file distributed with this source distribution.
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*
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* Additional copyright for this file:
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* Copyright (C) 1999-2000 Revolution Software Ltd.
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* This code is based on source code created by Revolution Software,
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* used with permission.
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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 "engines/icb/common/px_common.h"
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#include "engines/icb/p4.h"
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#include "engines/icb/zsupport.h"
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#include "engines/icb/res_man_pc.h"
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namespace ICB {
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#define BUFLEN 65536
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//static char buf[BUFLEN];
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uint32 fileGetZipLength(const char *inFn) {
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Common::SeekableReadStream *fileStream = openDiskFileForBinaryStreamRead(inFn);
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uint len = fileGetZipLength2(fileStream);
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delete fileStream;
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return len;
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}
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uint32 fileGetZipLength2(Common::SeekableReadStream *fileStream) {
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error("TODO: Fix compression");
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#if 0
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gzFile in;
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uint32 t = 0;
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int noOfFile = fileno(file);
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in = gzdopen(noOfFile , "rb");
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if (in == NULL)
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return 0;
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gzread(in, &t, sizeof(int32));
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return t;
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#endif
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}
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unsigned int memUncompress(unsigned char *outMem, const char *inFn) {
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Common::SeekableReadStream *fileStream = openDiskFileForBinaryStreamRead(inFn);
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uint retVal = memUncompress(outMem, inFn, fileStream);
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delete fileStream;
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return retVal;
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}
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unsigned int memUncompress(unsigned char *outMem, const char *inFn, Common::SeekableReadStream *file) {
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error("TODO: Fix compression");
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#if 0
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gzFile in;
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unsigned char *myp;
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uint uncompressedLen;
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int noOfFile = fileno(file);
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in = gzdopen(noOfFile , "rb");
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if (in == NULL) {
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fprintf(stderr, "error opening zipped file %s\n", inFn);
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return 0;
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}
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// Read the length
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if (gzread(in, &uncompressedLen, 4) != 4) {
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fprintf(stderr, "error in zipped file %s\n", inFn);
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return 0;
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}
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uint bytesRead = 0;
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uint bytesToRead = uncompressedLen;
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myp = outMem;
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while (bytesToRead) {
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// Work out how much to read this go
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uint bytesToReadThisPass = bytesToRead;
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// Only fill a buffer
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if (bytesToReadThisPass > BUFLEN)
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bytesToReadThisPass = BUFLEN;
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// Read in those bytes
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uint bytesReadThisPass = gzread(in, buf, bytesToReadThisPass);
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if (bytesReadThisPass == 0)
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break;
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// Uypdate the counters and pointers
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bytesRead += bytesReadThisPass;
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bytesToRead -= bytesReadThisPass;
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// And copy the data over
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memcpy(myp, buf, bytesReadThisPass);
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myp += bytesReadThisPass;
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}
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#endif
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return 1;
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}
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} // End of namespace ICB
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