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-rw-r--r--nGenEx/Archive.cpp616
1 files changed, 0 insertions, 616 deletions
diff --git a/nGenEx/Archive.cpp b/nGenEx/Archive.cpp
deleted file mode 100644
index 4b6462a..0000000
--- a/nGenEx/Archive.cpp
+++ /dev/null
@@ -1,616 +0,0 @@
-/* Starshatter OpenSource Distribution
- Copyright (c) 1997-2004, Destroyer Studios LLC.
- All Rights Reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
- * Neither the name "Destroyer Studios" nor the names of its contributors
- may be used to endorse or promote products derived from this software
- without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGE.
-
- SUBSYSTEM: nGenEx.lib
- FILE: Archive.cpp
- AUTHOR: John DiCamillo
-
-*/
-
-#include "MemDebug.h"
-#include "Types.h"
-#include "Archive.h"
-
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <io.h>
-#include <stdio.h>
-#include <time.h>
-
-#include "zlib.h"
-
-// +--------------------------------------------------------------------+
-
-void Print(const char* fmt, ...);
-
-int verbose = 1;
-int err;
-
-#define CHECK_ERR(err, msg) { \
- if (err != Z_OK) { \
- fprintf(stderr, "%s error: %d\n", msg, err); \
- exit(1); \
- } \
- }
-
-// +--------------------------------------------------------------------+
-
-DataArchive::DataArchive(const char* name)
-{
- ZeroMemory(this, sizeof(DataArchive));
-
- if (name)
- LoadDatafile(name);
-}
-
-DataArchive::~DataArchive()
-{
- delete [] block_map;
- delete [] directory;
-}
-
-// +--------------------------------------------------------------------+
-
-void DataArchive::WriteEntry(int index, BYTE* buf)
-{
- int f = _open(datafile, _O_RDWR|_O_CREAT|_O_BINARY, _S_IREAD|_S_IWRITE);
-
- if (f != -1) {
- header.dir_size_comp = DirBlocks() * BLOCK_SIZE;
- dirbuf = new(__FILE__,__LINE__) BYTE[header.dir_size_comp];
-
- if (!dirbuf) {
- err = Z_MEM_ERROR;
- }
-
- else {
- err = compress(dirbuf, &header.dir_size_comp,
- (BYTE*) directory, header.nfiles * sizeof(DataEntry));
- CHECK_ERR(err, "compress");
-
- header.dir_blocks = Blocks(header.dir_size_comp) * BLOCK_SIZE;
-
- _lseek(f, 0, SEEK_SET);
- _write(f, &header, sizeof(DataHeader));
- _lseek(f, sizeof(DataHeader) + header.dir_offset, SEEK_SET);
- _write(f, dirbuf, header.dir_blocks);
-
- delete [] dirbuf;
- dirbuf = 0;
- }
-
- if (buf && directory && directory[index].size_comp) {
- _lseek(f, sizeof(DataHeader) + directory[index].offset, SEEK_SET);
- _write(f, buf, directory[index].size_comp);
- }
- _close(f);
- }
- else
- perror("WriteEntry");
-}
-
-// +--------------------------------------------------------------------+
-
-DWORD DataArchive::Blocks(DWORD raw_size)
-{
- int full_blocks = raw_size / BLOCK_SIZE;
- int part_blocks = (raw_size % BLOCK_SIZE) > 0;
-
- return full_blocks + part_blocks;
-}
-
-DWORD DataArchive::DirBlocks()
-{
- DWORD result = Blocks(header.nfiles * sizeof(DataEntry));
- if (result == 0) result = 1;
- return result;
-}
-
-DWORD DataArchive::FileBlocks(int index)
-{
- if (index >= 0 && index < (int) header.nfiles && directory)
- return Blocks(directory[index].size_comp);
-
- return 0;
-}
-
-// +--------------------------------------------------------------------+
-
-void DataArchive::CreateBlockMap()
-{
- delete [] block_map;
- block_map = 0;
-
- if (header.nfiles == 0) return;
-
- DWORD i,j;
- DWORD dir_usage = header.dir_offset + DirBlocks() * BLOCK_SIZE;
- DWORD max_usage = dir_usage;
-
- for (i = 0; i < header.nfiles; i++) {
- DWORD last_block = directory[i].offset + FileBlocks(i) * BLOCK_SIZE;
- if (last_block > max_usage)
- max_usage = last_block;
- }
-
- nblocks = max_usage/BLOCK_SIZE;
- block_map = new(__FILE__,__LINE__) DWORD[nblocks];
-
- if (!block_map) {
- nblocks = 0;
- }
-
- else {
- ZeroMemory(block_map, nblocks*sizeof(DWORD));
-
- DWORD first_block = header.dir_offset/BLOCK_SIZE +
- (header.dir_offset%BLOCK_SIZE > 0);
-
- for (j = 0; j < DirBlocks(); j++)
- block_map[first_block+j] = 1;
-
- for (i = 0; i < header.nfiles; i++) {
- DWORD first_block = directory[i].offset/BLOCK_SIZE +
- (directory[i].offset%BLOCK_SIZE > 0);
-
- for (j = 0; j < FileBlocks(i); j++)
- block_map[first_block+j] = i+2;
- }
- }
-}
-
-// +--------------------------------------------------------------------+
-
-int DataArchive::FindDataBlocks(int need)
-{
- if ((int) (nblocks)-need > 0) {
- DWORD start;
- int i;
-
- for (start = 0; start < nblocks-need; start++) {
- for (i = 0; block_map[start+i] == 0 && i < need; i++);
-
- if (i == need) return start*BLOCK_SIZE;
-
- start += i;
- }
- }
-
- return nblocks*BLOCK_SIZE;
-}
-
-// +--------------------------------------------------------------------+
-
-void DataArchive::LoadDatafile(const char* name)
-{
- if (!name) return;
-
- delete [] directory;
- delete [] block_map;
-
- ZeroMemory(this, sizeof(DataArchive));
- strncpy_s(datafile, name, NAMELEN-1);
-
- FILE* f;
- fopen_s(&f, datafile, "rb");
- if (f) {
- fread(&header, sizeof(DataHeader), 1, f);
-
- if (header.version != VERSION) {
- Print("ERROR: datafile '%s' invalid version '%d'\n",
- datafile, header.version);
- fclose(f);
- ZeroMemory(&header, sizeof(header));
- return;
- }
-
- DWORD len = DirBlocks() * BLOCK_SIZE;
- DWORD dirsize = header.nfiles + 64;
-
- dirbuf = new(__FILE__,__LINE__) BYTE[len];
- directory = new(__FILE__,__LINE__) DataEntry[dirsize];
-
- if (!dirbuf || !directory) {
- err = Z_MEM_ERROR;
- }
-
- else {
- ZeroMemory(directory, sizeof(DataEntry) * dirsize);
-
- fseek(f, sizeof(DataHeader) + header.dir_offset, SEEK_SET);
- fread(dirbuf, header.dir_size_comp, 1, f);
-
- int err = uncompress((BYTE*) directory, &len,
-#pragma warning(suppress: 6029)
- dirbuf, header.dir_size_comp);
- if (err != Z_OK)
- ZeroMemory(directory, sizeof(DataEntry) * dirsize);
-
- delete [] dirbuf;
- dirbuf = 0;
-
- CreateBlockMap();
- }
- }
- else {
- Print("Creating Archive '%s'...\n", datafile);
-
- header.version = VERSION;
- header.nfiles = 0;
- header.dir_blocks = 0;
- header.dir_size_comp = 0;
- header.dir_offset = 0;
-
- nblocks = DirBlocks();
-
- delete [] block_map;
- block_map = 0;
- }
-}
-
-// +--------------------------------------------------------------------+
-
-int DataArchive::FindEntry(const char* req_name)
-{
- int entry = -1;
-
- if (req_name && *req_name && directory) {
- char path[256];
- int len = strlen(req_name);
-
- ZeroMemory(path, sizeof(path));
-
- for (int c = 0; c < len; c++) {
- if (req_name[c] == '\\')
- path[c] = '/';
- else
- path[c] = req_name[c];
- }
-
- for (DWORD i = 0; i < header.nfiles; i++) {
- if (!_stricmp(directory[i].name, path))
- return i;
- }
- }
-
- return entry;
-}
-
-// +--------------------------------------------------------------------+
-
-BYTE* DataArchive::CompressEntry(int i)
-{
- if (directory && i >= 0 && i < (int) header.nfiles) {
- char* name = directory[i].name;
-
- FILE* f;
- fopen_s(&f, name, "rb");
-
- if (f) {
- fseek(f, 0, SEEK_END);
- DWORD len = ftell(f);
- fseek(f, 0, SEEK_SET);
-
- BYTE* buf = new(__FILE__,__LINE__) BYTE[len];
-
- if (!buf) {
- err = Z_MEM_ERROR;
- }
-
- else {
- fread(buf, len, 1, f);
- fclose(f);
-
- directory[i].size_orig = len;
-
- directory[i].size_comp = (int) (len * 1.1);
- BYTE* cbuf = new(__FILE__,__LINE__) BYTE[directory[i].size_comp];
-
- if (!cbuf) {
- err = Z_MEM_ERROR;
- }
- else {
- err = compress(cbuf, &directory[i].size_comp, buf, len);
- CHECK_ERR(err, "compress");
- }
-
- delete [] buf;
- return cbuf;
- }
- }
- }
-
- return 0;
-}
-
-// +--------------------------------------------------------------------+
-
-int DataArchive::ExpandEntry(int i, BYTE*& buf, bool null_terminate)
-{
- DWORD len = 0;
-
- if (directory && i >= 0 && i < (int) header.nfiles) {
- FILE* f;
- fopen_s(&f, datafile, "rb");
-
- if (f) {
- DWORD clen = directory[i].size_comp;
- BYTE* cbuf = new(__FILE__,__LINE__) BYTE[clen];
-
- if (!cbuf) {
- err = Z_MEM_ERROR;
- }
-
- else {
- fseek(f, sizeof(DataHeader) + directory[i].offset, SEEK_SET);
- fread(cbuf, clen, 1, f);
-
- len = directory[i].size_orig;
-
- if (null_terminate) {
- buf = new(__FILE__,__LINE__) BYTE[len+1];
- if (buf) buf[len] = 0;
- }
-
- else {
- buf = new(__FILE__,__LINE__) BYTE[len];
- }
-
- if (!buf) {
- err = Z_MEM_ERROR;
- }
-
- else {
- err = uncompress(buf, &len, cbuf, clen);
- if (err != Z_OK) {
- delete [] buf;
- buf = 0;
- }
- }
-
- delete [] cbuf;
- fclose(f);
- }
- }
- }
-
- return len;
-}
-
-// +--------------------------------------------------------------------+
-
-int DataArchive::InsertEntry(const char* name)
-{
- if (name && *name) {
- char path[256];
- DWORD len = strlen(name);
-
- ZeroMemory(path, sizeof(path));
-
- for (DWORD c = 0; c < len; c++) {
- if (name[c] == '\\')
- path[c] = '/';
- else
- path[c] = name[c];
- }
-
- int dirsize = header.nfiles + 64;
-
- if (directory && dirsize) {
- for (int i = 0; i < dirsize; i++) {
- if (directory[i].size_orig == 0) {
- ZeroMemory(directory[i].name, NAMELEN);
- strncpy_s(directory[i].name, path, NAMELEN);
- directory[i].name[NAMELEN-1] = '\0';
- directory[i].size_orig = 1;
-
- return i;
- }
- }
- }
-
- DataEntry* dir = new(__FILE__,__LINE__) DataEntry[dirsize + 64];
-
- if (directory && dirsize) {
- ZeroMemory(dir, (dirsize + 64) * sizeof(DataEntry));
- CopyMemory(dir, directory, dirsize * sizeof(DataEntry));
- }
-
- delete [] directory;
-
- header.nfiles = dirsize + 64;
- directory = dir;
-
- ZeroMemory(directory[dirsize].name, NAMELEN);
- strncpy_s(directory[dirsize].name, path, NAMELEN);
- directory[dirsize].name[NAMELEN-1] = '\0';
- directory[dirsize].size_orig = 1;
-
- return dirsize;
- }
-
- return -1;
-}
-
-// +--------------------------------------------------------------------+
-
-void DataArchive::RemoveEntry(int index)
-{
- if (directory && index >= 0 && index < (int) header.nfiles)
- ZeroMemory(&directory[index], sizeof(DataEntry));
-}
-
-// +--------------------------------------------------------------------+
-
-void DataArchive::Insert(const char* name)
-{
- DWORD old_blocks = 0, old_offset = 0, new_blocks = 0;
- DWORD old_dir_blocks = 0, old_dir_offset = 0, new_dir_blocks = 0;
- int added = 0;
-
- int index = FindEntry(name);
-
- if (index < 0) {
- old_dir_blocks = DirBlocks();
- old_dir_offset = header.dir_offset;
-
- index = InsertEntry(name);
-
- if (index >= (int) header.nfiles) {
- header.nfiles = index+1;
- added = 1;
- }
-
- new_dir_blocks = DirBlocks();
-
- if (new_dir_blocks > old_dir_blocks) {
- header.dir_offset = FindDataBlocks(new_dir_blocks);
- CreateBlockMap();
- }
- }
- else {
- old_blocks = FileBlocks(index);
- old_offset = directory[index].offset;
- }
-
- if (index >= 0) {
- DataEntry& e = directory[index];
-
- if (verbose) Print(" Inserting: %-16s ", e.name);
-
- BYTE* buf = CompressEntry(index);
-
- if (!buf) {
- // this is (almost) unrecoverable,
- // so we quit before screwing things up:
- Print("ERROR: Could not compress %d:%s\n", index, directory[index].name);
- exit(1);
- }
-
- new_blocks = FileBlocks(index);
-
- // the file is new, or got bigger,
- // need to find room for the data:
- if (new_blocks > old_blocks) {
- directory[index].offset = FindDataBlocks(new_blocks);
- CreateBlockMap();
- }
-
- WriteEntry(index, buf);
- delete [] buf;
-
- if (verbose) {
- int ratio = (int) (100.0 * (double) e.size_comp / (double) e.size_orig);
- Print("%9d => %9d (%2d%%)\n", e.size_orig, e.size_comp, ratio);
- }
- }
- else if (added)
- header.nfiles--;
-}
-
-// +--------------------------------------------------------------------+
-
-void DataArchive::Extract(const char* name)
-{
- int index = FindEntry(name);
-
- if (!directory || index < 0 || index >= (int) header.nfiles) {
- Print("Could not extract '%s', not found\n", name);
- return;
- }
-
- BYTE* buf;
- ExpandEntry(index, buf);
-
- FILE* f;
- fopen_s(&f, directory[index].name, "wb");
- if (f) {
- fwrite(buf, directory[index].size_orig, 1, f);
- fclose(f);
- }
- else
- Print("Could not extract '%s', could not open file for writing\n", name);
-
- delete [] buf;
-
- if (verbose) Print(" Extracted: %s\n", name);
-}
-
-// +--------------------------------------------------------------------+
-
-void DataArchive::Remove(const char* name)
-{
- int index = FindEntry(name);
-
- if (!directory || index < 0 || index >= (int) header.nfiles) {
- Print("Could not remove '%s', not found\n", name);
- return;
- }
-
- RemoveEntry(index);
- WriteEntry(index, 0);
-
- if (verbose) Print(" Removed: %s\n", name);
-}
-
-// +--------------------------------------------------------------------+
-
-void DataArchive::List()
-{
- int total_orig = 0;
- int total_comp = 0;
-
- printf("DATAFILE: %s\n", datafile);
- printf("Files: %d\n", header.nfiles); //-V576
- printf("\n");
-
- if (directory && header.nfiles) {
- printf("Index Orig Size Comp Size Ratio Name\n");
- printf("----- --------- --------- ----- ----------------\n");
-
- for (DWORD i = 0; i < header.nfiles; i++) {
- DataEntry& e = directory[i];
- int ratio = (int) (100.0 * (double) e.size_comp / (double) e.size_orig);
-
- printf("%5d %9d %9d %2d%% %s\n", i+1, e.size_orig, e.size_comp, ratio, e.name); //-V576
-
- total_orig += e.size_orig;
- total_comp += e.size_comp;
- }
-
- int total_ratio = (int) (100.0 * (double) total_comp / (double) total_orig);
-
- printf("----- --------- --------- -----\n");
- printf("TOTAL %9d %9d %2d%%\n\n", total_orig, total_comp, total_ratio);
- }
-}
-
-
-// +--------------------------------------------------------------------+
-
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