filesystem.cpp: Split out RGSSAD parts

This commit is contained in:
Jonas Kulla 2014-07-23 22:57:39 +02:00
parent 7b947a50c9
commit 1ecdd9f980
5 changed files with 524 additions and 466 deletions

View File

@ -139,6 +139,7 @@ set(MAIN_HEADERS
src/aldatasource.h src/aldatasource.h
src/alstream.h src/alstream.h
src/audiostream.h src/audiostream.h
src/rgssad.h
) )
set(MAIN_SOURCE set(MAIN_SOURCE
@ -174,6 +175,7 @@ set(MAIN_SOURCE
src/sdlsoundsource.cpp src/sdlsoundsource.cpp
src/alstream.cpp src/alstream.cpp
src/audiostream.cpp src/audiostream.cpp
src/rgssad.cpp
) )
source_group("MKXP Source" FILES ${MAIN_SOURCE} ${MAIN_HEADERS}) source_group("MKXP Source" FILES ${MAIN_SOURCE} ${MAIN_HEADERS})

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@ -130,7 +130,8 @@ HEADERS += \
src/soundemitter.h \ src/soundemitter.h \
src/aldatasource.h \ src/aldatasource.h \
src/alstream.h \ src/alstream.h \
src/audiostream.h src/audiostream.h \
src/rgssad.h
SOURCES += \ SOURCES += \
src/main.cpp \ src/main.cpp \
@ -164,7 +165,8 @@ SOURCES += \
src/soundemitter.cpp \ src/soundemitter.cpp \
src/sdlsoundsource.cpp \ src/sdlsoundsource.cpp \
src/alstream.cpp \ src/alstream.cpp \
src/audiostream.cpp src/audiostream.cpp \
src/rgssad.cpp
EMBED = \ EMBED = \
shader/transSimple.frag \ shader/transSimple.frag \

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@ -21,6 +21,7 @@
#include "filesystem.h" #include "filesystem.h"
#include "rgssad.h"
#include "font.h" #include "font.h"
#include "util.h" #include "util.h"
#include "exception.h" #include "exception.h"
@ -36,470 +37,6 @@
#include <algorithm> #include <algorithm>
#include <vector> #include <vector>
struct RGSS_entryData
{
int64_t offset;
uint64_t size;
uint32_t startMagic;
};
struct RGSS_entryHandle
{
RGSS_entryData data;
uint32_t currentMagic;
uint64_t currentOffset;
PHYSFS_Io *io;
RGSS_entryHandle(const RGSS_entryData &data, PHYSFS_Io *archIo)
: data(data),
currentMagic(data.startMagic),
currentOffset(0)
{
io = archIo->duplicate(archIo);
}
~RGSS_entryHandle()
{
io->destroy(io);
}
};
struct RGSS_archiveData
{
PHYSFS_Io *archiveIo;
/* Maps: file path
* to: entry data */
BoostHash<std::string, RGSS_entryData> entryHash;
/* Maps: directory path,
* to: list of contained entries */
BoostHash<std::string, BoostSet<std::string> > dirHash;
};
static bool
readUint32(PHYSFS_Io *io, uint32_t &result)
{
char buff[4];
PHYSFS_sint64 count = io->read(io, buff, 4);
result = ((buff[0] << 0x00) & 0x000000FF) |
((buff[1] << 0x08) & 0x0000FF00) |
((buff[2] << 0x10) & 0x00FF0000) |
((buff[3] << 0x18) & 0xFF000000) ;
return (count == 4);
}
#define RGSS_HEADER_1 0x53534752
#define RGSS_HEADER_2 0x01004441
#define RGSS_MAGIC 0xDEADCAFE
#define PHYSFS_ALLOC(type) \
static_cast<type*>(PHYSFS_getAllocator()->Malloc(sizeof(type)))
static inline uint32_t
advanceMagic(uint32_t &magic)
{
uint32_t old = magic;
magic = magic * 7 + 3;
return old;
}
static PHYSFS_sint64
RGSS_ioRead(PHYSFS_Io *self, void *buffer, PHYSFS_uint64 len)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
PHYSFS_Io *io = entry->io;
uint64_t toRead = std::min<uint64_t>(entry->data.size - entry->currentOffset, len);
uint64_t offs = entry->currentOffset;
io->seek(io, entry->data.offset + offs);
/* We divide up the bytes to be read in 3 categories:
*
* preAlign: If the current read address is not dword
* aligned, this is the number of bytes to read til
* we reach alignment again (therefore can only be
* 3 or less).
*
* align: The number of aligned dwords we can read
* times 4 (= number of bytes).
*
* postAlign: The number of bytes to read after the
* last aligned dword. Always 3 or less.
*
* Treating the pre- and post aligned reads specially,
* we can read all aligned dwords in one syscall directly
* into the write buffer and then run the xor chain on
* it afterwards. */
uint8_t preAlign = 4 - (offs % 4);
if (preAlign == 4)
preAlign = 0;
else
preAlign = std::min<uint64_t>(preAlign, len);
uint8_t postAlign = (len > preAlign) ? (offs + len) % 4 : 0;
uint64_t align = len - (preAlign + postAlign);
/* Byte buffer pointer */
uint8_t *bBufferP = static_cast<uint8_t*>(buffer);
if (preAlign > 0)
{
uint32_t dword;
io->read(io, &dword, preAlign);
/* Need to align the bytes with the
* magic before xoring */
dword <<= 8 * (offs % 4);
dword ^= entry->currentMagic;
/* Shift them back to normal */
dword >>= 8 * (offs % 4);
memcpy(bBufferP, &dword, preAlign);
bBufferP += preAlign;
/* Only advance the magic if we actually
* reached the next alignment */
if ((offs+preAlign) % 4 == 0)
advanceMagic(entry->currentMagic);
}
if (align > 0)
{
/* Double word buffer pointer */
uint32_t *dwBufferP = reinterpret_cast<uint32_t*>(bBufferP);
/* Read aligned dwords in one go */
io->read(io, bBufferP, align);
/* Then xor them */
for (uint64_t i = 0; i < (align / 4); ++i)
dwBufferP[i] ^= advanceMagic(entry->currentMagic);
bBufferP += align;
}
if (postAlign > 0)
{
uint32_t dword;
io->read(io, &dword, postAlign);
/* Bytes are already aligned with magic */
dword ^= entry->currentMagic;
memcpy(bBufferP, &dword, postAlign);
}
entry->currentOffset += toRead;
return toRead;
}
static int
RGSS_ioSeek(PHYSFS_Io *self, PHYSFS_uint64 offset)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
if (offset == entry->currentOffset)
return 1;
if (offset > entry->data.size-1)
return 0;
/* If rewinding, we need to rewind to begining */
if (offset < entry->currentOffset)
{
entry->currentOffset = 0;
entry->currentMagic = entry->data.startMagic;
}
/* For each overstepped alignment, advance magic */
uint64_t currentDword = entry->currentOffset / 4;
uint64_t targetDword = offset / 4;
uint64_t dwordsSought = targetDword - currentDword;
for (uint64_t i = 0; i < dwordsSought; ++i)
advanceMagic(entry->currentMagic);
entry->currentOffset = offset;
entry->io->seek(entry->io, entry->data.offset + entry->currentOffset);
return 1;
}
static PHYSFS_sint64
RGSS_ioTell(PHYSFS_Io *self)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
return entry->currentOffset;
}
static PHYSFS_sint64
RGSS_ioLength(PHYSFS_Io *self)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
return entry->data.size;
}
static PHYSFS_Io*
RGSS_ioDuplicate(PHYSFS_Io *self)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
RGSS_entryHandle *entryDup = new RGSS_entryHandle(*entry);
PHYSFS_Io *dup = PHYSFS_ALLOC(PHYSFS_Io);
*dup = *self;
dup->opaque = entryDup;
return dup;
}
static void
RGSS_ioDestroy(PHYSFS_Io *self)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
delete entry;
PHYSFS_getAllocator()->Free(self);
}
static const PHYSFS_Io RGSS_IoTemplate =
{
0, /* version */
0, /* opaque */
RGSS_ioRead,
0, /* write */
RGSS_ioSeek,
RGSS_ioTell,
RGSS_ioLength,
RGSS_ioDuplicate,
0, /* flush */
RGSS_ioDestroy
};
static void*
RGSS_openArchive(PHYSFS_Io *io, const char *, int forWrite)
{
if (forWrite)
return 0;
/* Check header */
uint32_t header1, header2;
if (!readUint32(io, header1))
return 0;
if (!readUint32(io, header2))
return 0;
if (header1 != RGSS_HEADER_1 || header2 != RGSS_HEADER_2)
return 0;
RGSS_archiveData *data = new RGSS_archiveData;
data->archiveIo = io;
uint32_t magic = RGSS_MAGIC;
/* Top level entry list */
BoostSet<std::string> &topLevel = data->dirHash[""];
while (true)
{
/* Read filename length,
* if nothing was read, no files remain */
uint32_t nameLen;
if (!readUint32(io, nameLen))
break;
nameLen ^= advanceMagic(magic);
static char nameBuf[512];
uint32_t i;
for (i = 0; i < nameLen; ++i)
{
char c;
io->read(io, &c, 1);
nameBuf[i] = c ^ (advanceMagic(magic) & 0xFF);
if (nameBuf[i] == '\\')
nameBuf[i] = '/';
}
nameBuf[i] = 0;
uint32_t entrySize;
readUint32(io, entrySize);
entrySize ^= advanceMagic(magic);
RGSS_entryData entry;
entry.offset = io->tell(io);
entry.size = entrySize;
entry.startMagic = magic;
data->entryHash.insert(nameBuf, entry);
/* Check for top level entries */
for (i = 0; i < nameLen; ++i)
{
bool slash = nameBuf[i] == '/';
if (!slash && i+1 < nameLen)
continue;
if (slash)
nameBuf[i] = '\0';
topLevel.insert(nameBuf);
if (slash)
nameBuf[i] = '/';
}
/* Check for more entries */
for (i = nameLen; i > 0; i--)
if (nameBuf[i] == '/')
{
nameBuf[i] = '\0';
const char *dir = nameBuf;
const char *entry = &nameBuf[i+1];
BoostSet<std::string> &entryList = data->dirHash[dir];
entryList.insert(entry);
}
io->seek(io, entry.offset + entry.size);
}
return data;
}
static void
RGSS_enumerateFiles(void *opaque, const char *dirname,
PHYSFS_EnumFilesCallback cb,
const char *origdir, void *callbackdata)
{
RGSS_archiveData *data = static_cast<RGSS_archiveData*>(opaque);
std::string _dirname(dirname);
if (!data->dirHash.contains(_dirname))
return;
const BoostSet<std::string> &entries = data->dirHash[_dirname];
BoostSet<std::string>::const_iterator iter;
for (iter = entries.cbegin(); iter != entries.cend(); ++iter)
cb(callbackdata, origdir, iter->c_str());
}
static PHYSFS_Io*
RGSS_openRead(void *opaque, const char *filename)
{
RGSS_archiveData *data = static_cast<RGSS_archiveData*>(opaque);
if (!data->entryHash.contains(filename))
return 0;
RGSS_entryHandle *entry =
new RGSS_entryHandle(data->entryHash[filename], data->archiveIo);
PHYSFS_Io *io = PHYSFS_ALLOC(PHYSFS_Io);
*io = RGSS_IoTemplate;
io->opaque = entry;
return io;
}
static int
RGSS_stat(void *opaque, const char *filename, PHYSFS_Stat *stat)
{
RGSS_archiveData *data = static_cast<RGSS_archiveData*>(opaque);
bool hasFile = data->entryHash.contains(filename);
bool hasDir = data->dirHash.contains(filename);
if (!hasFile && !hasDir)
{
PHYSFS_setErrorCode(PHYSFS_ERR_NOT_FOUND);
return 0;
}
stat->modtime =
stat->createtime =
stat->accesstime = 0;
stat->readonly = 1;
if (hasFile)
{
RGSS_entryData &entry = data->entryHash[filename];
stat->filesize = entry.size;
stat->filetype = PHYSFS_FILETYPE_REGULAR;
}
else
{
stat->filesize = 0;
stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
}
return 1;
}
static void
RGSS_closeArchive(void *opaque)
{
RGSS_archiveData *data = static_cast<RGSS_archiveData*>(opaque);
delete data;
}
static PHYSFS_Io*
RGSS_noop1(void*, const char*)
{
return 0;
}
static int
RGSS_noop2(void*, const char*)
{
return 0;
}
static const PHYSFS_Archiver RGSS_Archiver =
{
0,
{
"RGSSAD",
"RGSS encrypted archive format",
"Jonas Kulla <Nyocurio@gmail.com>",
"http://k-du.de/rgss/rgss.html",
0 /* symlinks not supported */
},
RGSS_openArchive,
RGSS_enumerateFiles,
RGSS_openRead,
RGSS_noop1, /* openWrite */
RGSS_noop1, /* openAppend */
RGSS_noop2, /* remove */
RGSS_noop2, /* mkdir */
RGSS_stat,
RGSS_closeArchive
};
static inline PHYSFS_File *sdlPHYS(SDL_RWops *ops) static inline PHYSFS_File *sdlPHYS(SDL_RWops *ops)
{ {
return static_cast<PHYSFS_File*>(ops->hidden.unknown.data1); return static_cast<PHYSFS_File*>(ops->hidden.unknown.data1);

488
src/rgssad.cpp Normal file
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@ -0,0 +1,488 @@
/*
** rgssad.cpp
**
** This file is part of mkxp.
**
** Copyright (C) 2014 Jonas Kulla <Nyocurio@gmail.com>
**
** mkxp is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** mkxp is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
*/
#include "rgssad.h"
#include "boost-hash.h"
#include <stdint.h>
struct RGSS_entryData
{
int64_t offset;
uint64_t size;
uint32_t startMagic;
};
struct RGSS_entryHandle
{
RGSS_entryData data;
uint32_t currentMagic;
uint64_t currentOffset;
PHYSFS_Io *io;
RGSS_entryHandle(const RGSS_entryData &data, PHYSFS_Io *archIo)
: data(data),
currentMagic(data.startMagic),
currentOffset(0)
{
io = archIo->duplicate(archIo);
}
~RGSS_entryHandle()
{
io->destroy(io);
}
};
struct RGSS_archiveData
{
PHYSFS_Io *archiveIo;
/* Maps: file path
* to: entry data */
BoostHash<std::string, RGSS_entryData> entryHash;
/* Maps: directory path,
* to: list of contained entries */
BoostHash<std::string, BoostSet<std::string> > dirHash;
};
static bool
readUint32(PHYSFS_Io *io, uint32_t &result)
{
char buff[4];
PHYSFS_sint64 count = io->read(io, buff, 4);
result = ((buff[0] << 0x00) & 0x000000FF) |
((buff[1] << 0x08) & 0x0000FF00) |
((buff[2] << 0x10) & 0x00FF0000) |
((buff[3] << 0x18) & 0xFF000000) ;
return (count == 4);
}
#define RGSS_HEADER_1 0x53534752
#define RGSS_HEADER_2 0x01004441
#define RGSS_MAGIC 0xDEADCAFE
#define PHYSFS_ALLOC(type) \
static_cast<type*>(PHYSFS_getAllocator()->Malloc(sizeof(type)))
static inline uint32_t
advanceMagic(uint32_t &magic)
{
uint32_t old = magic;
magic = magic * 7 + 3;
return old;
}
static PHYSFS_sint64
RGSS_ioRead(PHYSFS_Io *self, void *buffer, PHYSFS_uint64 len)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
PHYSFS_Io *io = entry->io;
uint64_t toRead = std::min<uint64_t>(entry->data.size - entry->currentOffset, len);
uint64_t offs = entry->currentOffset;
io->seek(io, entry->data.offset + offs);
/* We divide up the bytes to be read in 3 categories:
*
* preAlign: If the current read address is not dword
* aligned, this is the number of bytes to read til
* we reach alignment again (therefore can only be
* 3 or less).
*
* align: The number of aligned dwords we can read
* times 4 (= number of bytes).
*
* postAlign: The number of bytes to read after the
* last aligned dword. Always 3 or less.
*
* Treating the pre- and post aligned reads specially,
* we can read all aligned dwords in one syscall directly
* into the write buffer and then run the xor chain on
* it afterwards. */
uint8_t preAlign = 4 - (offs % 4);
if (preAlign == 4)
preAlign = 0;
else
preAlign = std::min<uint64_t>(preAlign, len);
uint8_t postAlign = (len > preAlign) ? (offs + len) % 4 : 0;
uint64_t align = len - (preAlign + postAlign);
/* Byte buffer pointer */
uint8_t *bBufferP = static_cast<uint8_t*>(buffer);
if (preAlign > 0)
{
uint32_t dword;
io->read(io, &dword, preAlign);
/* Need to align the bytes with the
* magic before xoring */
dword <<= 8 * (offs % 4);
dword ^= entry->currentMagic;
/* Shift them back to normal */
dword >>= 8 * (offs % 4);
memcpy(bBufferP, &dword, preAlign);
bBufferP += preAlign;
/* Only advance the magic if we actually
* reached the next alignment */
if ((offs+preAlign) % 4 == 0)
advanceMagic(entry->currentMagic);
}
if (align > 0)
{
/* Double word buffer pointer */
uint32_t *dwBufferP = reinterpret_cast<uint32_t*>(bBufferP);
/* Read aligned dwords in one go */
io->read(io, bBufferP, align);
/* Then xor them */
for (uint64_t i = 0; i < (align / 4); ++i)
dwBufferP[i] ^= advanceMagic(entry->currentMagic);
bBufferP += align;
}
if (postAlign > 0)
{
uint32_t dword;
io->read(io, &dword, postAlign);
/* Bytes are already aligned with magic */
dword ^= entry->currentMagic;
memcpy(bBufferP, &dword, postAlign);
}
entry->currentOffset += toRead;
return toRead;
}
static int
RGSS_ioSeek(PHYSFS_Io *self, PHYSFS_uint64 offset)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
if (offset == entry->currentOffset)
return 1;
if (offset > entry->data.size-1)
return 0;
/* If rewinding, we need to rewind to begining */
if (offset < entry->currentOffset)
{
entry->currentOffset = 0;
entry->currentMagic = entry->data.startMagic;
}
/* For each overstepped alignment, advance magic */
uint64_t currentDword = entry->currentOffset / 4;
uint64_t targetDword = offset / 4;
uint64_t dwordsSought = targetDword - currentDword;
for (uint64_t i = 0; i < dwordsSought; ++i)
advanceMagic(entry->currentMagic);
entry->currentOffset = offset;
entry->io->seek(entry->io, entry->data.offset + entry->currentOffset);
return 1;
}
static PHYSFS_sint64
RGSS_ioTell(PHYSFS_Io *self)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
return entry->currentOffset;
}
static PHYSFS_sint64
RGSS_ioLength(PHYSFS_Io *self)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
return entry->data.size;
}
static PHYSFS_Io*
RGSS_ioDuplicate(PHYSFS_Io *self)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
RGSS_entryHandle *entryDup = new RGSS_entryHandle(*entry);
PHYSFS_Io *dup = PHYSFS_ALLOC(PHYSFS_Io);
*dup = *self;
dup->opaque = entryDup;
return dup;
}
static void
RGSS_ioDestroy(PHYSFS_Io *self)
{
RGSS_entryHandle *entry = static_cast<RGSS_entryHandle*>(self->opaque);
delete entry;
PHYSFS_getAllocator()->Free(self);
}
static const PHYSFS_Io RGSS_IoTemplate =
{
0, /* version */
0, /* opaque */
RGSS_ioRead,
0, /* write */
RGSS_ioSeek,
RGSS_ioTell,
RGSS_ioLength,
RGSS_ioDuplicate,
0, /* flush */
RGSS_ioDestroy
};
static void*
RGSS_openArchive(PHYSFS_Io *io, const char *, int forWrite)
{
if (forWrite)
return 0;
/* Check header */
uint32_t header1, header2;
if (!readUint32(io, header1))
return 0;
if (!readUint32(io, header2))
return 0;
if (header1 != RGSS_HEADER_1 || header2 != RGSS_HEADER_2)
return 0;
RGSS_archiveData *data = new RGSS_archiveData;
data->archiveIo = io;
uint32_t magic = RGSS_MAGIC;
/* Top level entry list */
BoostSet<std::string> &topLevel = data->dirHash[""];
while (true)
{
/* Read filename length,
* if nothing was read, no files remain */
uint32_t nameLen;
if (!readUint32(io, nameLen))
break;
nameLen ^= advanceMagic(magic);
static char nameBuf[512];
uint32_t i;
for (i = 0; i < nameLen; ++i)
{
char c;
io->read(io, &c, 1);
nameBuf[i] = c ^ (advanceMagic(magic) & 0xFF);
if (nameBuf[i] == '\\')
nameBuf[i] = '/';
}
nameBuf[i] = 0;
uint32_t entrySize;
readUint32(io, entrySize);
entrySize ^= advanceMagic(magic);
RGSS_entryData entry;
entry.offset = io->tell(io);
entry.size = entrySize;
entry.startMagic = magic;
data->entryHash.insert(nameBuf, entry);
/* Check for top level entries */
for (i = 0; i < nameLen; ++i)
{
bool slash = nameBuf[i] == '/';
if (!slash && i+1 < nameLen)
continue;
if (slash)
nameBuf[i] = '\0';
topLevel.insert(nameBuf);
if (slash)
nameBuf[i] = '/';
}
/* Check for more entries */
for (i = nameLen; i > 0; i--)
if (nameBuf[i] == '/')
{
nameBuf[i] = '\0';
const char *dir = nameBuf;
const char *entry = &nameBuf[i+1];
BoostSet<std::string> &entryList = data->dirHash[dir];
entryList.insert(entry);
}
io->seek(io, entry.offset + entry.size);
}
return data;
}
static void
RGSS_enumerateFiles(void *opaque, const char *dirname,
PHYSFS_EnumFilesCallback cb,
const char *origdir, void *callbackdata)
{
RGSS_archiveData *data = static_cast<RGSS_archiveData*>(opaque);
std::string _dirname(dirname);
if (!data->dirHash.contains(_dirname))
return;
const BoostSet<std::string> &entries = data->dirHash[_dirname];
BoostSet<std::string>::const_iterator iter;
for (iter = entries.cbegin(); iter != entries.cend(); ++iter)
cb(callbackdata, origdir, iter->c_str());
}
static PHYSFS_Io*
RGSS_openRead(void *opaque, const char *filename)
{
RGSS_archiveData *data = static_cast<RGSS_archiveData*>(opaque);
if (!data->entryHash.contains(filename))
return 0;
RGSS_entryHandle *entry =
new RGSS_entryHandle(data->entryHash[filename], data->archiveIo);
PHYSFS_Io *io = PHYSFS_ALLOC(PHYSFS_Io);
*io = RGSS_IoTemplate;
io->opaque = entry;
return io;
}
static int
RGSS_stat(void *opaque, const char *filename, PHYSFS_Stat *stat)
{
RGSS_archiveData *data = static_cast<RGSS_archiveData*>(opaque);
bool hasFile = data->entryHash.contains(filename);
bool hasDir = data->dirHash.contains(filename);
if (!hasFile && !hasDir)
{
PHYSFS_setErrorCode(PHYSFS_ERR_NOT_FOUND);
return 0;
}
stat->modtime =
stat->createtime =
stat->accesstime = 0;
stat->readonly = 1;
if (hasFile)
{
RGSS_entryData &entry = data->entryHash[filename];
stat->filesize = entry.size;
stat->filetype = PHYSFS_FILETYPE_REGULAR;
}
else
{
stat->filesize = 0;
stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
}
return 1;
}
static void
RGSS_closeArchive(void *opaque)
{
RGSS_archiveData *data = static_cast<RGSS_archiveData*>(opaque);
delete data;
}
static PHYSFS_Io*
RGSS_noop1(void*, const char*)
{
return 0;
}
static int
RGSS_noop2(void*, const char*)
{
return 0;
}
const PHYSFS_Archiver RGSS_Archiver =
{
0,
{
"RGSSAD",
"RGSS encrypted archive format",
"Jonas Kulla <Nyocurio@gmail.com>",
"http://k-du.de/rgss/rgss.html",
0 /* symlinks not supported */
},
RGSS_openArchive,
RGSS_enumerateFiles,
RGSS_openRead,
RGSS_noop1, /* openWrite */
RGSS_noop1, /* openAppend */
RGSS_noop2, /* remove */
RGSS_noop2, /* mkdir */
RGSS_stat,
RGSS_closeArchive
};

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src/rgssad.h Normal file
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@ -0,0 +1,29 @@
/*
** rgssad.h
**
** This file is part of mkxp.
**
** Copyright (C) 2014 Jonas Kulla <Nyocurio@gmail.com>
**
** mkxp is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** mkxp is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef RGSSAD_H
#define RGSSAD_H
#include <physfs.h>
extern const PHYSFS_Archiver RGSS_Archiver;
#endif // RGSSAD_H