bsnes/snesreader/unrar/headers.hpp
Tim Allen a59ecb3dd4 Include all the code from the bsnes v068 tarball.
byuu describes the changes since v067:

This release officially introduces the accuracy and performance cores,
alongside the previously-existing compatibility core. The accuracy core
allows the most accurate SNES emulation ever seen, with every last
processor running at the lowest possible clock synchronization level.
The performance core allows slower computers the chance to finally use
bsnes. It is capable of attaining 60fps in standard games even on an
entry-level Intel Atom processor, commonly found in netbooks.

The accuracy core is absolutely not meant for casual gaming at all. It
is meant solely for getting as close to 100% perfection as possible, no
matter the cost to speed. It should only be used for testing,
development or debugging.

The compatibility core is identical to bsnes v067 and earlier, but is
now roughly 10% faster. This is the default and recommended core for
casual gaming.

The performance core contains an entirely new S-CPU core, with
range-tested IRQs; and uses blargg's heavily-optimized S-DSP core
directly. Although there are very minor accuracy tradeoffs to increase
speed, I am confident that the performance core is still more accurate
and compatible than any other SNES emulator. The S-CPU, S-SMP, S-DSP,
SuperFX and SA-1 processors are all clock-based, just as in the accuracy
and compatibility cores; and as always, there are zero game-specific
hacks. Its compatibility is still well above 99%, running even the most
challenging games flawlessly.

If you have held off from using bsnes in the past due to its system
requirements, please give the performance core a try. I think you will
be impressed. I'm also not finished: I believe performance can be
increased even further.

I would also strongly suggest Windows Vista and Windows 7 users to take
advantage of the new XAudio2 driver by OV2. Not only does it give you
a performance boost, it also lowers latency and provides better sound by
way of skipping an API emulation layer.

Changelog:
- Split core into three profiles: accuracy, compatibility and
  performance
- Accuracy core now takes advantage of variable-bitlength integers (eg
  uint24_t)
- Performance core uses a new S-CPU core, written from scratch for speed
- Performance core uses blargg's snes_dsp library for S-DSP emulation
- Binaries are now compiled using GCC 4.5
- Added a workaround in the SA-1 core for a bug in GCC 4.5+
- The clock-based S-PPU renderer has greatly improved OAM emulation;
  fixing Winter Gold and Megalomania rendering issues
- Corrected pseudo-hires color math in the clock-based S-PPU renderer;
  fixing Super Buster Bros backgrounds
- Fixed a clamping bug in the Cx4 16-bit triangle operation [Jonas
  Quinn]; fixing Mega Man X2 "gained weapon" star background effect
- Updated video renderer to properly handle mixed-resolution screens
  with interlace enabled; fixing Air Strike Patrol level briefing screen
- Added mightymo's 2010-08-19 cheat code pack
- Windows port: added XAudio2 output support [OV2]
- Source: major code restructuring; virtual base classes for processor
- cores removed, build system heavily modified, etc.
2010-10-20 22:30:34 +11:00

145 lines
2.5 KiB
C++
Executable file

#ifndef _RAR_HEADERS_
#define _RAR_HEADERS_
#define SIZEOF_MARKHEAD 7
#define SIZEOF_OLDMHD 7
#define SIZEOF_NEWMHD 13
#define SIZEOF_OLDLHD 21
#define SIZEOF_NEWLHD 32
#define SIZEOF_SHORTBLOCKHEAD 7
#define SIZEOF_SUBBLOCKHEAD 14
#define SIZEOF_COMMHEAD 13
#define UNP_VER 36
#define MHD_VOLUME 0x0001
#define MHD_COMMENT 0x0002
#define MHD_SOLID 0x0008
#define MHD_PASSWORD 0x0080
#define LHD_SPLIT_BEFORE 0x0001
#define LHD_SPLIT_AFTER 0x0002
#define LHD_PASSWORD 0x0004
#define LHD_COMMENT 0x0008
#define LHD_SOLID 0x0010
#define LHD_WINDOWMASK 0x00e0
#define LHD_DIRECTORY 0x00e0
#define LHD_LARGE 0x0100
#define LHD_UNICODE 0x0200
#define LHD_SALT 0x0400
#define LHD_EXTTIME 0x1000
#define LONG_BLOCK 0x8000
enum HEADER_TYPE {
MARK_HEAD=0x72,MAIN_HEAD=0x73,FILE_HEAD=0x74,COMM_HEAD=0x75,AV_HEAD=0x76,
SUB_HEAD=0x77,PROTECT_HEAD=0x78,SIGN_HEAD=0x79,NEWSUB_HEAD=0x7a,
ENDARC_HEAD=0x7b
};
enum HOST_SYSTEM {
HOST_MSDOS=0,HOST_OS2=1,HOST_WIN32=2,HOST_UNIX=3,HOST_MACOS=4,
HOST_BEOS=5,HOST_MAX
};
struct OldMainHeader
{
byte Mark[4];
ushort HeadSize;
byte Flags;
};
struct OldFileHeader
{
uint PackSize;
uint UnpSize;
ushort FileCRC;
ushort HeadSize;
uint FileTime;
byte FileAttr;
byte Flags;
byte UnpVer;
byte NameSize;
byte Method;
};
struct MarkHeader
{
byte Mark[7];
};
struct BaseBlock
{
ushort HeadCRC;
HEADER_TYPE HeadType;//byte
ushort Flags;
ushort HeadSize;
};
struct BlockHeader:BaseBlock
{
union {
uint DataSize;
uint PackSize;
};
};
struct MainHeader:BaseBlock
{
ushort HighPosAV;
uint PosAV;
};
#define SALT_SIZE 8
struct FileHeader:BlockHeader
{
uint UnpSize;
byte HostOS;
uint FileCRC;
uint FileTime;
byte UnpVer;
byte Method;
ushort NameSize;
union {
uint FileAttr;
uint SubFlags;
};
/* optional */
uint HighPackSize;
uint HighUnpSize;
/* names */
char FileName[NM*4]; // *4 to avoid using lots of stack in arcread
wchar FileNameW[NM];
/* optional */
byte Salt[SALT_SIZE];
RarTime mtime;
/* dummy */
Int64 FullPackSize;
Int64 FullUnpSize;
};
// SubBlockHeader and its successors were used in RAR 2.x format.
// RAR 3.x uses FileHeader with NEWSUB_HEAD HeadType for subblocks.
struct SubBlockHeader:BlockHeader
{
ushort SubType;
byte Level;
};
struct ProtectHeader:BlockHeader
{
byte Version;
ushort RecSectors;
uint TotalBlocks;
byte Mark[8];
};
#endif