/*
===========================================================================
Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
Doom 3 Source Code 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 3 of the License, or
(at your option) any later version.
Doom 3 Source Code 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 Doom 3 Source Code. If not, see .
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#include "precompiled.h"
#pragma hdrstop
#if defined( MACOS_X )
#include
#include
#include
#endif
/*
===============================================================================
idLib
===============================================================================
*/
idSys * idLib::sys = NULL;
idCommon * idLib::common = NULL;
idCVarSystem * idLib::cvarSystem = NULL;
idFileSystem * idLib::fileSystem = NULL;
int idLib::frameNumber = 0;
/*
================
idLib::Init
================
*/
void idLib::Init( void ) {
assert( sizeof( bool ) == 1 );
// initialize little/big endian conversion
Swap_Init();
// initialize memory manager
Mem_Init();
// init string memory allocator
idStr::InitMemory();
// initialize generic SIMD implementation
idSIMD::Init();
// initialize math
idMath::Init();
// test idMatX
//idMatX::Test();
// test idPolynomial
idPolynomial::Test();
// initialize the dictionary string pools
idDict::Init();
}
/*
================
idLib::ShutDown
================
*/
void idLib::ShutDown( void ) {
// shut down the dictionary string pools
idDict::Shutdown();
// shut down the string memory allocator
idStr::ShutdownMemory();
// shut down the SIMD engine
idSIMD::Shutdown();
// shut down the memory manager
Mem_Shutdown();
}
/*
===============================================================================
Colors
===============================================================================
*/
idVec4 colorBlack = idVec4( 0.00f, 0.00f, 0.00f, 1.00f );
idVec4 colorWhite = idVec4( 1.00f, 1.00f, 1.00f, 1.00f );
idVec4 colorRed = idVec4( 1.00f, 0.00f, 0.00f, 1.00f );
idVec4 colorGreen = idVec4( 0.00f, 1.00f, 0.00f, 1.00f );
idVec4 colorBlue = idVec4( 0.00f, 0.00f, 1.00f, 1.00f );
idVec4 colorYellow = idVec4( 1.00f, 1.00f, 0.00f, 1.00f );
idVec4 colorMagenta= idVec4( 1.00f, 0.00f, 1.00f, 1.00f );
idVec4 colorCyan = idVec4( 0.00f, 1.00f, 1.00f, 1.00f );
idVec4 colorOrange = idVec4( 1.00f, 0.50f, 0.00f, 1.00f );
idVec4 colorPurple = idVec4( 0.60f, 0.00f, 0.60f, 1.00f );
idVec4 colorPink = idVec4( 0.73f, 0.40f, 0.48f, 1.00f );
idVec4 colorBrown = idVec4( 0.40f, 0.35f, 0.08f, 1.00f );
idVec4 colorLtGrey = idVec4( 0.75f, 0.75f, 0.75f, 1.00f );
idVec4 colorMdGrey = idVec4( 0.50f, 0.50f, 0.50f, 1.00f );
idVec4 colorDkGrey = idVec4( 0.25f, 0.25f, 0.25f, 1.00f );
static dword colorMask[2] = { 255, 0 };
/*
================
ColorFloatToByte
================
*/
ID_INLINE static byte ColorFloatToByte( float c ) {
return (byte) ( ( (dword) ( c * 255.0f ) ) & colorMask[FLOATSIGNBITSET(c)] );
}
/*
================
PackColor
================
*/
dword PackColor( const idVec4 &color ) {
dword dw, dx, dy, dz;
dx = ColorFloatToByte( color.x );
dy = ColorFloatToByte( color.y );
dz = ColorFloatToByte( color.z );
dw = ColorFloatToByte( color.w );
#if defined(ID_LITTLE_ENDIAN)
return ( dx << 0 ) | ( dy << 8 ) | ( dz << 16 ) | ( dw << 24 );
#elif defined(ID_BIG_ENDIAN)
return ( dx << 24 ) | ( dy << 16 ) | ( dz << 8 ) | ( dw << 0 );
#else
#error unknown endianness!
#endif
}
/*
================
UnpackColor
================
*/
void UnpackColor( const dword color, idVec4 &unpackedColor ) {
#if defined(ID_LITTLE_ENDIAN)
unpackedColor.Set( ( ( color >> 0 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 8 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 16 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 24 ) & 255 ) * ( 1.0f / 255.0f ) );
#elif defined(ID_BIG_ENDIAN)
unpackedColor.Set( ( ( color >> 24 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 16 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 8 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 0 ) & 255 ) * ( 1.0f / 255.0f ) );
#else
#error unknown endianness!
#endif
}
/*
================
PackColor
================
*/
dword PackColor( const idVec3 &color ) {
dword dx, dy, dz;
dx = ColorFloatToByte( color.x );
dy = ColorFloatToByte( color.y );
dz = ColorFloatToByte( color.z );
#if defined(ID_LITTLE_ENDIAN)
return ( dx << 0 ) | ( dy << 8 ) | ( dz << 16 );
#elif defined(ID_BIG_ENDIAN)
return ( dy << 16 ) | ( dz << 8 ) | ( dx << 0 );
#else
#error unknown endianness!
#endif
}
/*
================
UnpackColor
================
*/
void UnpackColor( const dword color, idVec3 &unpackedColor ) {
#if defined(ID_LITTLE_ENDIAN)
unpackedColor.Set( ( ( color >> 0 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 8 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 16 ) & 255 ) * ( 1.0f / 255.0f ) );
#elif defined(ID_BIG_ENDIAN)
unpackedColor.Set( ( ( color >> 16 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 8 ) & 255 ) * ( 1.0f / 255.0f ),
( ( color >> 0 ) & 255 ) * ( 1.0f / 255.0f ) );
#else
#error unknown endianness!
#endif
}
/*
===============
idLib::Error
===============
*/
void idLib::Error( const char *fmt, ... ) {
va_list argptr;
char text[MAX_STRING_CHARS];
va_start( argptr, fmt );
idStr::vsnPrintf( text, sizeof( text ), fmt, argptr );
va_end( argptr );
common->Error( "%s", text );
}
/*
===============
idLib::Warning
===============
*/
void idLib::Warning( const char *fmt, ... ) {
va_list argptr;
char text[MAX_STRING_CHARS];
va_start( argptr, fmt );
idStr::vsnPrintf( text, sizeof( text ), fmt, argptr );
va_end( argptr );
common->Warning( "%s", text );
}
/*
===============================================================================
Byte order functions
===============================================================================
*/
// can't just use function pointers, or dll linkage can mess up
static short (*_BigShort)( short l );
static short (*_LittleShort)( short l );
static int (*_BigLong)( int l );
static int (*_LittleLong)( int l );
static float (*_BigFloat)( float l );
static float (*_LittleFloat)( float l );
static void (*_BigRevBytes)( void *bp, int elsize, int elcount );
static void (*_LittleRevBytes)( void *bp, int elsize, int elcount );
static void (*_LittleBitField)( void *bp, int elsize );
static void (*_SixtetsForInt)( byte *out, int src );
static int (*_IntForSixtets)( byte *in );
short BigShort( short l ) { return _BigShort( l ); }
short LittleShort( short l ) { return _LittleShort( l ); }
int BigLong( int l ) { return _BigLong( l ); }
int LittleLong( int l ) { return _LittleLong( l ); }
float BigFloat( float l ) { return _BigFloat( l ); }
float LittleFloat( float l ) { return _LittleFloat( l ); }
void BigRevBytes( void *bp, int elsize, int elcount ) { _BigRevBytes( bp, elsize, elcount ); }
void LittleRevBytes( void *bp, int elsize, int elcount ){ _LittleRevBytes( bp, elsize, elcount ); }
void LittleBitField( void *bp, int elsize ){ _LittleBitField( bp, elsize ); }
void SixtetsForInt( byte *out, int src) { _SixtetsForInt( out, src ); }
int IntForSixtets( byte *in ) { return _IntForSixtets( in ); }
/*
================
ShortSwap
================
*/
short ShortSwap( short l ) {
byte b1,b2;
b1 = l&255;
b2 = (l>>8)&255;
return (b1<<8) + b2;
}
/*
================
ShortNoSwap
================
*/
short ShortNoSwap( short l ) {
return l;
}
/*
================
LongSwap
================
*/
int LongSwap ( int l ) {
byte b1,b2,b3,b4;
b1 = l&255;
b2 = (l>>8)&255;
b3 = (l>>16)&255;
b4 = (l>>24)&255;
return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
}
/*
================
LongNoSwap
================
*/
int LongNoSwap( int l ) {
return l;
}
/*
================
FloatSwap
================
*/
float FloatSwap( float f ) {
union {
float f;
byte b[4];
} dat1, dat2;
dat1.f = f;
dat2.b[0] = dat1.b[3];
dat2.b[1] = dat1.b[2];
dat2.b[2] = dat1.b[1];
dat2.b[3] = dat1.b[0];
return dat2.f;
}
/*
================
FloatNoSwap
================
*/
float FloatNoSwap( float f ) {
return f;
}
/*
=====================================================================
RevBytesSwap
Reverses byte order in place.
INPUTS
bp bytes to reverse
elsize size of the underlying data type
elcount number of elements to swap
RESULTS
Reverses the byte order in each of elcount elements.
===================================================================== */
void RevBytesSwap( void *bp, int elsize, int elcount ) {
register unsigned char *p, *q;
p = ( unsigned char * ) bp;
if ( elsize == 2 ) {
q = p + 1;
while ( elcount-- ) {
*p ^= *q;
*q ^= *p;
*p ^= *q;
p += 2;
q += 2;
}
return;
}
while ( elcount-- ) {
q = p + elsize - 1;
while ( p < q ) {
*p ^= *q;
*q ^= *p;
*p ^= *q;
++p;
--q;
}
p += elsize >> 1;
}
}
/*
=====================================================================
RevBytesSwap
Reverses byte order in place, then reverses bits in those bytes
INPUTS
bp bitfield structure to reverse
elsize size of the underlying data type
RESULTS
Reverses the bitfield of size elsize.
===================================================================== */
void RevBitFieldSwap( void *bp, int elsize) {
int i;
unsigned char *p, t, v;
LittleRevBytes( bp, elsize, 1 );
p = (unsigned char *) bp;
while ( elsize-- ) {
v = *p;
t = 0;
for (i = 7; i; i--) {
t <<= 1;
v >>= 1;
t |= v & 1;
}
*p++ = t;
}
}
/*
================
RevBytesNoSwap
================
*/
void RevBytesNoSwap( void *bp, int elsize, int elcount ) {
return;
}
/*
================
RevBytesNoSwap
================
*/
void RevBitFieldNoSwap( void *bp, int elsize ) {
return;
}
/*
================
SixtetsForIntLittle
================
*/
void SixtetsForIntLittle( byte *out, int src) {
byte *b = (byte *)&src;
out[0] = ( b[0] & 0xfc ) >> 2;
out[1] = ( ( b[0] & 0x3 ) << 4 ) + ( ( b[1] & 0xf0 ) >> 4 );
out[2] = ( ( b[1] & 0xf ) << 2 ) + ( ( b[2] & 0xc0 ) >> 6 );
out[3] = b[2] & 0x3f;
}
/*
================
SixtetsForIntBig
TTimo: untested - that's the version from initial base64 encode
================
*/
void SixtetsForIntBig( byte *out, int src) {
for( int i = 0 ; i < 4 ; i++ ) {
out[i] = src & 0x3f;
src >>= 6;
}
}
/*
================
IntForSixtetsLittle
================
*/
int IntForSixtetsLittle( byte *in ) {
int ret = 0;
byte *b = (byte *)&ret;
b[0] |= in[0] << 2;
b[0] |= ( in[1] & 0x30 ) >> 4;
b[1] |= ( in[1] & 0xf ) << 4;
b[1] |= ( in[2] & 0x3c ) >> 2;
b[2] |= ( in[2] & 0x3 ) << 6;
b[2] |= in[3];
return ret;
}
/*
================
IntForSixtetsBig
TTimo: untested - that's the version from initial base64 decode
================
*/
int IntForSixtetsBig( byte *in ) {
int ret = 0;
ret |= in[0];
ret |= in[1] << 6;
ret |= in[2] << 2*6;
ret |= in[3] << 3*6;
return ret;
}
/*
================
Swap_Init
================
*/
void Swap_Init( void ) {
byte swaptest[2] = {1,0};
// set the byte swapping variables in a portable manner
if ( *(short *)swaptest == 1) {
// little endian ex: x86
_BigShort = ShortSwap;
_LittleShort = ShortNoSwap;
_BigLong = LongSwap;
_LittleLong = LongNoSwap;
_BigFloat = FloatSwap;
_LittleFloat = FloatNoSwap;
_BigRevBytes = RevBytesSwap;
_LittleRevBytes = RevBytesNoSwap;
_LittleBitField = RevBitFieldNoSwap;
_SixtetsForInt = SixtetsForIntLittle;
_IntForSixtets = IntForSixtetsLittle;
} else {
// big endian ex: ppc
_BigShort = ShortNoSwap;
_LittleShort = ShortSwap;
_BigLong = LongNoSwap;
_LittleLong = LongSwap;
_BigFloat = FloatNoSwap;
_LittleFloat = FloatSwap;
_BigRevBytes = RevBytesNoSwap;
_LittleRevBytes = RevBytesSwap;
_LittleBitField = RevBitFieldSwap;
_SixtetsForInt = SixtetsForIntBig;
_IntForSixtets = IntForSixtetsBig;
}
}
/*
==========
Swap_IsBigEndian
==========
*/
bool Swap_IsBigEndian( void ) {
byte swaptest[2] = {1,0};
return *(short *)swaptest != 1;
}
/*
===============================================================================
Assertion
===============================================================================
*/
void AssertFailed( const char *file, int line, const char *expression ) {
idLib::sys->DebugPrintf( "\n\nASSERTION FAILED!\n%s(%d): '%s'\n", file, line, expression );
#ifdef _WIN32
__asm int 0x03
#elif defined( __linux__ )
__asm__ __volatile__ ("int $0x03");
#elif defined( MACOS_X )
kill( getpid(), SIGINT );
#endif
}