thirtyflightsofloving/game/q_shared.c
Knightmare66 1e5348cbe0 Refactoring and rearrangment of menu code.
Added new graphic for text box.
Made edict_t pointer arrays static in 3ZB2, Awakening2, and Zaero DLLs due to stack size concerns.
2021-08-12 15:30:51 -04:00

2379 lines
42 KiB
C

/*
===========================================================================
Copyright (C) 1997-2001 Id Software, Inc.
Copyright (C) 2000-2002 Mr. Hyde and Mad Dog
This file is part of Lazarus Quake 2 Mod source code.
Lazarus Quake 2 Mod 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 2 of the License,
or (at your option) any later version.
Lazarus Quake 2 Mod 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 Lazarus Quake 2 Mod source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "q_shared.h"
#include "laz_misc.h"
#ifdef _WIN32
#include "../win32/winquake.h"
#endif
vec2_t vec2_origin = {0,0};
vec3_t vec3_origin = {0,0,0};
vec4_t vec4_origin = {0,0,0,0};
//============================================================================
#ifdef _WIN32
#pragma optimize( "", off )
#endif
void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees )
{
float m[3][3];
float im[3][3];
float zrot[3][3];
float tmpmat[3][3];
float rot[3][3];
int i;
vec3_t vr, vup, vf;
vf[0] = dir[0];
vf[1] = dir[1];
vf[2] = dir[2];
PerpendicularVector( vr, dir );
CrossProduct( vr, vf, vup );
m[0][0] = vr[0];
m[1][0] = vr[1];
m[2][0] = vr[2];
m[0][1] = vup[0];
m[1][1] = vup[1];
m[2][1] = vup[2];
m[0][2] = vf[0];
m[1][2] = vf[1];
m[2][2] = vf[2];
memcpy( im, m, sizeof( im ) );
im[0][1] = m[1][0];
im[0][2] = m[2][0];
im[1][0] = m[0][1];
im[1][2] = m[2][1];
im[2][0] = m[0][2];
im[2][1] = m[1][2];
memset( zrot, 0, sizeof( zrot ) );
zrot[0][0] = zrot[1][1] = zrot[2][2] = 1.0F;
zrot[0][0] = cos( DEG2RAD( degrees ) );
zrot[0][1] = sin( DEG2RAD( degrees ) );
zrot[1][0] = -sin( DEG2RAD( degrees ) );
zrot[1][1] = cos( DEG2RAD( degrees ) );
R_ConcatRotations( m, zrot, tmpmat );
R_ConcatRotations( tmpmat, im, rot );
for ( i = 0; i < 3; i++ )
{
dst[i] = rot[i][0] * point[0] + rot[i][1] * point[1] + rot[i][2] * point[2];
}
}
#ifdef _WIN32
#pragma optimize( "", on )
#endif
void AngleVectors (vec3_t angles, vec3_t forward, vec3_t right, vec3_t up)
{
float angle;
static float sr, sp, sy, cr, cp, cy;
// static to help MS compiler fp bugs
if (!angles)
return;
angle = angles[YAW] * (M_PI*2 / 360);
sy = sin(angle);
cy = cos(angle);
angle = angles[PITCH] * (M_PI*2 / 360);
sp = sin(angle);
cp = cos(angle);
angle = angles[ROLL] * (M_PI*2 / 360);
sr = sin(angle);
cr = cos(angle);
if (forward)
{
forward[0] = cp*cy;
forward[1] = cp*sy;
forward[2] = -sp;
}
if (right)
{
right[0] = (-1*sr*sp*cy+-1*cr*-sy);
right[1] = (-1*sr*sp*sy+-1*cr*cy);
right[2] = -1*sr*cp;
}
if (up)
{
up[0] = (cr*sp*cy+-sr*-sy);
up[1] = (cr*sp*sy+-sr*cy);
up[2] = cr*cp;
}
}
void MakeNormalVectors (vec3_t forward, vec3_t right, vec3_t up)
{
float d;
// this rotate and negat guarantees a vector
// not colinear with the original
right[1] = -forward[0];
right[2] = forward[1];
right[0] = forward[2];
d = DotProduct (right, forward);
VectorMA (right, -d, forward, right);
VectorNormalize (right);
CrossProduct (right, forward, up);
}
void VecToAngleRolled (vec3_t value1, float angleyaw, vec3_t angles)
{
float forward, yaw, pitch;
yaw = (int) (atan2(value1[1], value1[0]) * 180 / M_PI);
forward = sqrt (value1[0]*value1[0] + value1[1]*value1[1]);
pitch = (int) (atan2(value1[2], forward) * 180 / M_PI);
if (pitch < 0)
pitch += 360;
angles[PITCH] = -pitch;
angles[YAW] = yaw;
angles[ROLL] = - angleyaw;
}
void ProjectPointOnPlane( vec3_t dst, const vec3_t p, const vec3_t normal )
{
float d;
vec3_t n;
float inv_denom;
inv_denom = 1.0F / DotProduct( normal, normal );
d = DotProduct( normal, p ) * inv_denom;
n[0] = normal[0] * inv_denom;
n[1] = normal[1] * inv_denom;
n[2] = normal[2] * inv_denom;
dst[0] = p[0] - d * n[0];
dst[1] = p[1] - d * n[1];
dst[2] = p[2] - d * n[2];
}
/*
** assumes "src" is normalized
*/
void PerpendicularVector( vec3_t dst, const vec3_t src )
{
int pos;
int i;
float minelem = 1.0F;
vec3_t tempvec;
/*
** find the smallest magnitude axially aligned vector
*/
for ( pos = 0, i = 0; i < 3; i++ )
{
if ( fabs( src[i] ) < minelem )
{
pos = i;
minelem = fabs( src[i] );
}
}
tempvec[0] = tempvec[1] = tempvec[2] = 0.0F;
tempvec[pos] = 1.0F;
/*
** project the point onto the plane defined by src
*/
ProjectPointOnPlane( dst, tempvec, src );
/*
** normalize the result
*/
VectorNormalize( dst );
}
/*
================
R_ConcatRotations
================
*/
void R_ConcatRotations (float in1[3][3], float in2[3][3], float out[3][3])
{
out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] +
in1[0][2] * in2[2][0];
out[0][1] = in1[0][0] * in2[0][1] + in1[0][1] * in2[1][1] +
in1[0][2] * in2[2][1];
out[0][2] = in1[0][0] * in2[0][2] + in1[0][1] * in2[1][2] +
in1[0][2] * in2[2][2];
out[1][0] = in1[1][0] * in2[0][0] + in1[1][1] * in2[1][0] +
in1[1][2] * in2[2][0];
out[1][1] = in1[1][0] * in2[0][1] + in1[1][1] * in2[1][1] +
in1[1][2] * in2[2][1];
out[1][2] = in1[1][0] * in2[0][2] + in1[1][1] * in2[1][2] +
in1[1][2] * in2[2][2];
out[2][0] = in1[2][0] * in2[0][0] + in1[2][1] * in2[1][0] +
in1[2][2] * in2[2][0];
out[2][1] = in1[2][0] * in2[0][1] + in1[2][1] * in2[1][1] +
in1[2][2] * in2[2][1];
out[2][2] = in1[2][0] * in2[0][2] + in1[2][1] * in2[1][2] +
in1[2][2] * in2[2][2];
}
/*
================
R_ConcatTransforms
================
*/
void R_ConcatTransforms (float in1[3][4], float in2[3][4], float out[3][4])
{
out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] +
in1[0][2] * in2[2][0];
out[0][1] = in1[0][0] * in2[0][1] + in1[0][1] * in2[1][1] +
in1[0][2] * in2[2][1];
out[0][2] = in1[0][0] * in2[0][2] + in1[0][1] * in2[1][2] +
in1[0][2] * in2[2][2];
out[0][3] = in1[0][0] * in2[0][3] + in1[0][1] * in2[1][3] +
in1[0][2] * in2[2][3] + in1[0][3];
out[1][0] = in1[1][0] * in2[0][0] + in1[1][1] * in2[1][0] +
in1[1][2] * in2[2][0];
out[1][1] = in1[1][0] * in2[0][1] + in1[1][1] * in2[1][1] +
in1[1][2] * in2[2][1];
out[1][2] = in1[1][0] * in2[0][2] + in1[1][1] * in2[1][2] +
in1[1][2] * in2[2][2];
out[1][3] = in1[1][0] * in2[0][3] + in1[1][1] * in2[1][3] +
in1[1][2] * in2[2][3] + in1[1][3];
out[2][0] = in1[2][0] * in2[0][0] + in1[2][1] * in2[1][0] +
in1[2][2] * in2[2][0];
out[2][1] = in1[2][0] * in2[0][1] + in1[2][1] * in2[1][1] +
in1[2][2] * in2[2][1];
out[2][2] = in1[2][0] * in2[0][2] + in1[2][1] * in2[1][2] +
in1[2][2] * in2[2][2];
out[2][3] = in1[2][0] * in2[0][3] + in1[2][1] * in2[1][3] +
in1[2][2] * in2[2][3] + in1[2][3];
}
//============================================================================
float Q_fabs (float f)
{
#if 0
if (f >= 0)
return f;
return -f;
#else
int tmp = * ( int * ) &f;
tmp &= 0x7FFFFFFF;
return * ( float * ) &tmp;
#endif
}
#if defined _M_IX86 && !defined C_ONLY
#pragma warning (disable:4035)
__declspec( naked ) int Q_ftol( float f )
{
static int tmp;
__asm fld dword ptr [esp+4]
__asm fistp tmp
__asm mov eax, tmp
__asm ret
}
#pragma warning (default:4035)
#else
int Q_ftol( float f )
{
return (int)f;
}
#endif
/*
===============
LerpAngle
===============
*/
float LerpAngle (float a2, float a1, float frac)
{
if (a1 - a2 > 180)
a1 -= 360;
if (a1 - a2 < -180)
a1 += 360;
return a2 + frac * (a1 - a2);
}
float anglemod(float a)
{
#if 0
if (a >= 0)
a -= 360*(int)(a/360);
else
a += 360*( 1 + (int)(-a/360) );
#endif
a = (360.0/65536) * ((int)(a*(65536/360.0)) & 65535);
return a;
}
// int i;
// vec3_t corners[2];
// this is the slow, general version
int BoxOnPlaneSide2 (vec3_t emins, vec3_t emaxs, struct cplane_s *p)
{
int i;
float dist1, dist2;
int sides;
vec3_t corners[2];
for (i=0 ; i<3 ; i++)
{
if (p->normal[i] < 0)
{
corners[0][i] = emins[i];
corners[1][i] = emaxs[i];
}
else
{
corners[1][i] = emins[i];
corners[0][i] = emaxs[i];
}
}
dist1 = DotProduct (p->normal, corners[0]) - p->dist;
dist2 = DotProduct (p->normal, corners[1]) - p->dist;
sides = 0;
if (dist1 >= 0)
sides = 1;
if (dist2 < 0)
sides |= 2;
return sides;
}
/*
==================
BoxOnPlaneSide
Returns 1, 2, or 1 + 2
Which means (THANKS FOR THE FUCKING COMMENTS CARMACK!):
1 = PSIDE_FRONT (front of plane)
2 = PSIDE_BACK (back of plane)
3 = PSIDE_BOTH (both sides of plane)
==================
*/
//#if !id386 || defined __linux__
//#ifndef id386
//#ifndef _WIN32
#if !defined (_WIN32) || !defined (_M_IX86)
int BoxOnPlaneSide (vec3_t emins, vec3_t emaxs, struct cplane_s *p)
{
float dist1, dist2;
int sides;
// fast axial cases
if (p->type < 3)
{
if (p->dist <= emins[p->type])
return 1;
if (p->dist >= emaxs[p->type])
return 2;
return 3;
}
// general case
switch (p->signbits)
{
case 0:
dist1 = p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2];
dist2 = p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2];
break;
case 1:
dist1 = p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2];
dist2 = p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2];
break;
case 2:
dist1 = p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2];
dist2 = p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2];
break;
case 3:
dist1 = p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2];
dist2 = p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2];
break;
case 4:
dist1 = p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2];
dist2 = p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2];
break;
case 5:
dist1 = p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2];
dist2 = p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2];
break;
case 6:
dist1 = p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2];
dist2 = p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2];
break;
case 7:
dist1 = p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2];
dist2 = p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2];
break;
default:
dist1 = dist2 = 0; // shut up compiler
assert( 0 );
break;
}
sides = 0;
if (dist1 >= p->dist)
sides = 1;
if (dist2 < p->dist)
sides |= 2;
assert( sides != 0 );
return sides;
}
#else
#pragma warning( disable: 4035 )
__declspec( naked ) int BoxOnPlaneSide (vec3_t emins, vec3_t emaxs, struct cplane_s *p)
{
static int bops_initialized;
static int Ljmptab[8];
__asm {
push ebx
cmp bops_initialized, 1
je initialized
mov bops_initialized, 1
mov Ljmptab[0*4], offset Lcase0
mov Ljmptab[1*4], offset Lcase1
mov Ljmptab[2*4], offset Lcase2
mov Ljmptab[3*4], offset Lcase3
mov Ljmptab[4*4], offset Lcase4
mov Ljmptab[5*4], offset Lcase5
mov Ljmptab[6*4], offset Lcase6
mov Ljmptab[7*4], offset Lcase7
initialized:
mov edx,ds:dword ptr[4+12+esp]
mov ecx,ds:dword ptr[4+4+esp]
xor eax,eax
mov ebx,ds:dword ptr[4+8+esp]
mov al,ds:byte ptr[17+edx]
cmp al,8
jge Lerror
fld ds:dword ptr[0+edx]
fld st(0)
jmp dword ptr[Ljmptab+eax*4]
Lcase0:
fmul ds:dword ptr[ebx]
fld ds:dword ptr[0+4+edx]
fxch st(2)
fmul ds:dword ptr[ecx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[4+ebx]
fld ds:dword ptr[0+8+edx]
fxch st(2)
fmul ds:dword ptr[4+ecx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[8+ebx]
fxch st(5)
faddp st(3),st(0)
fmul ds:dword ptr[8+ecx]
fxch st(1)
faddp st(3),st(0)
fxch st(3)
faddp st(2),st(0)
jmp LSetSides
Lcase1:
fmul ds:dword ptr[ecx]
fld ds:dword ptr[0+4+edx]
fxch st(2)
fmul ds:dword ptr[ebx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[4+ebx]
fld ds:dword ptr[0+8+edx]
fxch st(2)
fmul ds:dword ptr[4+ecx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[8+ebx]
fxch st(5)
faddp st(3),st(0)
fmul ds:dword ptr[8+ecx]
fxch st(1)
faddp st(3),st(0)
fxch st(3)
faddp st(2),st(0)
jmp LSetSides
Lcase2:
fmul ds:dword ptr[ebx]
fld ds:dword ptr[0+4+edx]
fxch st(2)
fmul ds:dword ptr[ecx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[4+ecx]
fld ds:dword ptr[0+8+edx]
fxch st(2)
fmul ds:dword ptr[4+ebx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[8+ebx]
fxch st(5)
faddp st(3),st(0)
fmul ds:dword ptr[8+ecx]
fxch st(1)
faddp st(3),st(0)
fxch st(3)
faddp st(2),st(0)
jmp LSetSides
Lcase3:
fmul ds:dword ptr[ecx]
fld ds:dword ptr[0+4+edx]
fxch st(2)
fmul ds:dword ptr[ebx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[4+ecx]
fld ds:dword ptr[0+8+edx]
fxch st(2)
fmul ds:dword ptr[4+ebx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[8+ebx]
fxch st(5)
faddp st(3),st(0)
fmul ds:dword ptr[8+ecx]
fxch st(1)
faddp st(3),st(0)
fxch st(3)
faddp st(2),st(0)
jmp LSetSides
Lcase4:
fmul ds:dword ptr[ebx]
fld ds:dword ptr[0+4+edx]
fxch st(2)
fmul ds:dword ptr[ecx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[4+ebx]
fld ds:dword ptr[0+8+edx]
fxch st(2)
fmul ds:dword ptr[4+ecx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[8+ecx]
fxch st(5)
faddp st(3),st(0)
fmul ds:dword ptr[8+ebx]
fxch st(1)
faddp st(3),st(0)
fxch st(3)
faddp st(2),st(0)
jmp LSetSides
Lcase5:
fmul ds:dword ptr[ecx]
fld ds:dword ptr[0+4+edx]
fxch st(2)
fmul ds:dword ptr[ebx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[4+ebx]
fld ds:dword ptr[0+8+edx]
fxch st(2)
fmul ds:dword ptr[4+ecx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[8+ecx]
fxch st(5)
faddp st(3),st(0)
fmul ds:dword ptr[8+ebx]
fxch st(1)
faddp st(3),st(0)
fxch st(3)
faddp st(2),st(0)
jmp LSetSides
Lcase6:
fmul ds:dword ptr[ebx]
fld ds:dword ptr[0+4+edx]
fxch st(2)
fmul ds:dword ptr[ecx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[4+ecx]
fld ds:dword ptr[0+8+edx]
fxch st(2)
fmul ds:dword ptr[4+ebx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[8+ecx]
fxch st(5)
faddp st(3),st(0)
fmul ds:dword ptr[8+ebx]
fxch st(1)
faddp st(3),st(0)
fxch st(3)
faddp st(2),st(0)
jmp LSetSides
Lcase7:
fmul ds:dword ptr[ecx]
fld ds:dword ptr[0+4+edx]
fxch st(2)
fmul ds:dword ptr[ebx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[4+ecx]
fld ds:dword ptr[0+8+edx]
fxch st(2)
fmul ds:dword ptr[4+ebx]
fxch st(2)
fld st(0)
fmul ds:dword ptr[8+ecx]
fxch st(5)
faddp st(3),st(0)
fmul ds:dword ptr[8+ebx]
fxch st(1)
faddp st(3),st(0)
fxch st(3)
faddp st(2),st(0)
LSetSides:
faddp st(2),st(0)
fcomp ds:dword ptr[12+edx]
xor ecx,ecx
fnstsw ax
fcomp ds:dword ptr[12+edx]
and ah,1
xor ah,1
add cl,ah
fnstsw ax
and ah,1
add ah,ah
add cl,ah
pop ebx
mov eax,ecx
ret
Lerror:
int 3
}
}
#pragma warning( default: 4035 )
#endif
void ClearBounds (vec3_t mins, vec3_t maxs)
{
mins[0] = mins[1] = mins[2] = 99999;
maxs[0] = maxs[1] = maxs[2] = -99999;
}
void AddPointToBounds (vec3_t v, vec3_t mins, vec3_t maxs)
{
int i;
vec_t val;
for (i=0 ; i<3 ; i++)
{
val = v[i];
if (val < mins[i])
mins[i] = val;
if (val > maxs[i])
maxs[i] = val;
}
}
int VectorCompare (vec3_t v1, vec3_t v2)
{
if (v1[0] != v2[0] || v1[1] != v2[1] || v1[2] != v2[2])
return 0;
return 1;
}
vec_t VectorNormalize (vec3_t v)
{
float length, ilength;
length = v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
length = sqrt (length); // FIXME
if (length)
{
ilength = 1/length;
v[0] *= ilength;
v[1] *= ilength;
v[2] *= ilength;
}
return length;
}
vec_t VectorNormalize2 (vec3_t v, vec3_t out)
{
float length, ilength;
length = v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
length = sqrt (length); // FIXME
if (length)
{
ilength = 1/length;
out[0] = v[0]*ilength;
out[1] = v[1]*ilength;
out[2] = v[2]*ilength;
}
return length;
}
/*
=================
VectorNormalizeFast
From Q2E
=================
*/
void VectorNormalizeFast (vec3_t v)
{
float ilength = Q_rsqrt (v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
v[0] = v[0]*ilength;
v[1] = v[1]*ilength;
v[2] = v[2]*ilength;
}
void VectorMA (vec3_t veca, float scale, vec3_t vecb, vec3_t vecc)
{
vecc[0] = veca[0] + scale*vecb[0];
vecc[1] = veca[1] + scale*vecb[1];
vecc[2] = veca[2] + scale*vecb[2];
}
vec_t _DotProduct (vec3_t v1, vec3_t v2)
{
return v1[0]*v2[0] + v1[1]*v2[1] + v1[2]*v2[2];
}
void _VectorSubtract (vec3_t veca, vec3_t vecb, vec3_t out)
{
out[0] = veca[0]-vecb[0];
out[1] = veca[1]-vecb[1];
out[2] = veca[2]-vecb[2];
}
void _VectorAdd (vec3_t veca, vec3_t vecb, vec3_t out)
{
out[0] = veca[0]+vecb[0];
out[1] = veca[1]+vecb[1];
out[2] = veca[2]+vecb[2];
}
void _VectorCopy (vec3_t in, vec3_t out)
{
out[0] = in[0];
out[1] = in[1];
out[2] = in[2];
}
void CrossProduct (vec3_t v1, vec3_t v2, vec3_t cross)
{
cross[0] = v1[1]*v2[2] - v1[2]*v2[1];
cross[1] = v1[2]*v2[0] - v1[0]*v2[2];
cross[2] = v1[0]*v2[1] - v1[1]*v2[0];
}
double sqrt(double x);
vec_t VectorLength(vec3_t v)
{
int i;
float length;
length = 0;
for (i=0 ; i< 3 ; i++)
length += v[i]*v[i];
length = sqrt (length); // FIXME
return length;
}
void VectorInverse (vec3_t v)
{
v[0] = -v[0];
v[1] = -v[1];
v[2] = -v[2];
}
void VectorScale (vec3_t in, vec_t scale, vec3_t out)
{
out[0] = in[0]*scale;
out[1] = in[1]*scale;
out[2] = in[2]*scale;
}
/*
=================
Q_rsqrt
From Q2E
=================
*/
float Q_rsqrt (float in)
{
int i;
float x, y;
x = in * 0.5f;
i = *(int *)&in;
i = 0x5f3759df - (i >> 1);
y = *(float *)&i;
y = y * (1.5f - (x * y * y));
return y;
}
int Q_log2(int val)
{
int answer=0;
while (val>>=1)
answer++;
return answer;
}
/*
=================
VectorRotate
From Q2E
=================
*/
void VectorRotate (const vec3_t v, const vec3_t matrix[3], vec3_t out)
{
out[0] = v[0]*matrix[0][0] + v[1]*matrix[0][1] + v[2]*matrix[0][2];
out[1] = v[0]*matrix[1][0] + v[1]*matrix[1][1] + v[2]*matrix[1][2];
out[2] = v[0]*matrix[2][0] + v[1]*matrix[2][1] + v[2]*matrix[2][2];
}
/*
=================
AnglesToAxis
From Q2E
=================
*/
void AnglesToAxis (const vec3_t angles, vec3_t axis[3])
{
static float sp, sy, sr, cp, cy, cr;
float angle;
angle = DEG2RAD(angles[PITCH]);
sp = sin(angle);
cp = cos(angle);
angle = DEG2RAD(angles[YAW]);
sy = sin(angle);
cy = cos(angle);
angle = DEG2RAD(angles[ROLL]);
sr = sin(angle);
cr = cos(angle);
axis[0][0] = cp*cy;
axis[0][1] = cp*sy;
axis[0][2] = -sp;
axis[1][0] = sr*sp*cy+cr*-sy;
axis[1][1] = sr*sp*sy+cr*cy;
axis[1][2] = sr*cp;
axis[2][0] = cr*sp*cy+-sr*-sy;
axis[2][1] = cr*sp*sy+-sr*cy;
axis[2][2] = cr*cp;
}
/*
=================
AxisClear
From Q2E
=================
*/
void AxisClear (vec3_t axis[3])
{
axis[0][0] = 1;
axis[0][1] = 0;
axis[0][2] = 0;
axis[1][0] = 0;
axis[1][1] = 1;
axis[1][2] = 0;
axis[2][0] = 0;
axis[2][1] = 0;
axis[2][2] = 1;
}
/*
=================
AxisCopy
From Q2E
=================
*/
void AxisCopy (const vec3_t in[3], vec3_t out[3])
{
out[0][0] = in[0][0];
out[0][1] = in[0][1];
out[0][2] = in[0][2];
out[1][0] = in[1][0];
out[1][1] = in[1][1];
out[1][2] = in[1][2];
out[2][0] = in[2][0];
out[2][1] = in[2][1];
out[2][2] = in[2][2];
}
/*
=================
AxisCompare
From Q2E
=================
*/
qboolean AxisCompare (const vec3_t axis1[3], const vec3_t axis2[3])
{
if (axis1[0][0] != axis2[0][0] || axis1[0][1] != axis2[0][1] || axis1[0][2] != axis2[0][2])
return false;
if (axis1[1][0] != axis2[1][0] || axis1[1][1] != axis2[1][1] || axis1[1][2] != axis2[1][2])
return false;
if (axis1[2][0] != axis2[2][0] || axis1[2][1] != axis2[2][1] || axis1[2][2] != axis2[2][2])
return false;
return true;
}
/*
================
MatrixMultiply
From Q3A
================
*/
void MatrixMultiply (float in1[3][3], float in2[3][3], float out[3][3])
{
out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] +
in1[0][2] * in2[2][0];
out[0][1] = in1[0][0] * in2[0][1] + in1[0][1] * in2[1][1] +
in1[0][2] * in2[2][1];
out[0][2] = in1[0][0] * in2[0][2] + in1[0][1] * in2[1][2] +
in1[0][2] * in2[2][2];
out[1][0] = in1[1][0] * in2[0][0] + in1[1][1] * in2[1][0] +
in1[1][2] * in2[2][0];
out[1][1] = in1[1][0] * in2[0][1] + in1[1][1] * in2[1][1] +
in1[1][2] * in2[2][1];
out[1][2] = in1[1][0] * in2[0][2] + in1[1][1] * in2[1][2] +
in1[1][2] * in2[2][2];
out[2][0] = in1[2][0] * in2[0][0] + in1[2][1] * in2[1][0] +
in1[2][2] * in2[2][0];
out[2][1] = in1[2][0] * in2[0][1] + in1[2][1] * in2[1][1] +
in1[2][2] * in2[2][1];
out[2][2] = in1[2][0] * in2[0][2] + in1[2][1] * in2[1][2] +
in1[2][2] * in2[2][2];
}
//====================================================================================
/*
============
COM_SkipPath
Skips the file path
============
*/
char *COM_SkipPath (char *pathname)
{
char *last;
last = pathname;
while (*pathname)
{
if (*pathname == '/' || *pathname == '\\')
last = pathname+1;
pathname++;
}
return last;
}
/*
============
COM_StripExtension
Removes the file extension, if any
============
*/
void COM_StripExtension (char *in, char *out, size_t outSize)
{
/* while (*in && *in != '.')
*out++ = *in++;
*out = 0;
*/
char *s, *last;
s = last = in + strlen(in);
while (*s != '/' && *s != '\\' && s != in)
{
if (*s == '.'){
last = s;
break;
}
s--;
}
Q_strncpyz(out, outSize, in);
if (last-in < outSize)
out[last-in] = 0;
}
/*
============
COM_FileExtension
============
*/
char *COM_FileExtension (char *in)
{
static char exten[8];
int i;
while (*in && *in != '.')
in++;
if (!*in)
return "";
in++;
for (i=0 ; i<7 && *in ; i++,in++)
exten[i] = *in;
exten[i] = 0;
return exten;
}
/*
============
COM_FileBase
============
*/
void COM_FileBase (char *in, char *out, size_t outSize)
{
char *s, *s2;
s = in + strlen(in) - 1;
while (s != in && *s != '.')
s--;
for (s2 = s ; s2 != in && *s2 != '/' ; s2--)
;
if (s-s2 < 2)
out[0] = 0;
else
{
s--;
// strncpy (out,s2+1, s-s2);
// out[s-s2] = 0;
Q_strncpyz (out, outSize, s2+1);
if (s-s2 < outSize)
out[s-s2] = 0;
}
}
/*
============
COM_FilePath
Returns the path up to, but not including the last /
============
*/
void COM_FilePath (char *in, char *out, size_t outSize)
{
char *s;
s = in + strlen(in) - 1;
while (s != in && *s != '/')
s--;
// strncpy (out, in, s-in);
// out[s-in] = 0;
Q_strncpyz (out, outSize, in);
if (s-in < outSize)
out[s-in] = 0;
}
/*
==================
COM_DefaultExtension
==================
*/
void COM_DefaultExtension (char *path, size_t pathSize, char *extension)
{
char *src;
//
// if path doesn't have a .EXT, append extension
// (extension should include the .)
//
src = path + strlen(path) - 1;
while (*src != '/' && src != path)
{
if (*src == '.')
return; // it has an extension
src--;
}
// strncat (path, extension);
Q_strncatz(path, pathSize, extension);
}
/*
============================================================================
BYTE ORDER FUNCTIONS
============================================================================
*/
qboolean bigendien;
// can't just use function pointers, or dll linkage can
// mess up when qcommon is included in multiple places
// Knightmare- made these static
static short (*_BigShort) (short l);
static short (*_LittleShort) (short l);
static int (*_BigLong) (int l);
static int (*_LittleLong) (int l);
static qint64 (*_BigLong64) (qint64 l);
static qint64 (*_LittleLong64) (qint64 l);
static float (*_BigFloat) (float l);
static float (*_LittleFloat) (float l);
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);}
qint64 BigLong64 (qint64 l) {return _BigLong64(l);}
qint64 LittleLong64 (qint64 l) {return _LittleLong64(l);}
float BigFloat (float l) {return _BigFloat(l);}
float LittleFloat (float l) {return _LittleFloat(l);}
short ShortSwap (short l)
{
byte b1,b2;
b1 = l&255;
b2 = (l>>8)&255;
return (b1<<8) + b2;
}
short ShortNoSwap (short l)
{
return l;
}
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;
}
int LongNoSwap (int l)
{
return l;
}
qint64 Long64Swap (qint64 ll)
{
byte b1,b2,b3,b4,b5,b6,b7,b8;
b1 = ll&255;
b2 = (ll>>8)&255;
b3 = (ll>>16)&255;
b4 = (ll>>24)&255;
b5 = (ll>>32)&255;
b6 = (ll>>40)&255;
b7 = (ll>>48)&255;
b8 = (ll>>56)&255;
return ((qint64)b1<<56) + ((qint64)b2<<48) + ((qint64)b3<<40) + ((qint64)b4<<32)
+ ((qint64)b5<<24) + ((qint64)b6<<16) + ((qint64)b7<<8) + (qint64)b8;
}
qint64 Long64NoSwap (qint64 ll)
{
return ll;
}
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;
}
float FloatNoSwap (float f)
{
return f;
}
/*
================
Swap_Init
================
*/
void Swap_Init (void)
{
byte swaptest[2] = {1,0};
// set the byte swapping variables in a portable manner
if ( *(short *)swaptest == 1)
{
bigendien = false;
_BigShort = ShortSwap;
_LittleShort = ShortNoSwap;
_BigLong = LongSwap;
_LittleLong = LongNoSwap;
_BigLong64 = Long64Swap;
_LittleLong64 = Long64NoSwap;
_BigFloat = FloatSwap;
_LittleFloat = FloatNoSwap;
}
else
{
bigendien = true;
_BigShort = ShortNoSwap;
_LittleShort = ShortSwap;
_BigLong = LongNoSwap;
_LittleLong = LongSwap;
_BigLong64 = Long64NoSwap;
_LittleLong64 = Long64Swap;
_BigFloat = FloatNoSwap;
_LittleFloat = FloatSwap;
}
}
/*
============
va
does a varargs printf into a temp buffer, so I don't need to have
varargs versions of all text functions.
============
*/
char *va (char *format, ...)
{
va_list argptr;
static char string[1024];
va_start (argptr, format);
Q_vsnprintf (string, sizeof(string), format, argptr);
va_end (argptr);
return string;
}
/*
=======================================================================
TEXT PARSING
=======================================================================
*/
char com_token[MAX_TOKEN_CHARS];
//static int com_parseLine;
/*
=================
COM_SkipWhiteSpace
=================
*/
char *COM_SkipWhiteSpace (char *data_p, qboolean *hasNewLines)
{
int c;
while ((c = *data_p) <= ' ')
{
if (!c)
return NULL;
if (c == '\n') {
// com_parseLine++;
*hasNewLines = true;
}
data_p++;
}
return data_p;
}
/*
=================
COM_SkipBracedSection
Skips until a matching close brace is found.
Internal brace depths are properly skipped.
=================
*/
void COM_SkipBracedSection (char **data_p, int depth)
{
char *tok;
do
{
tok = COM_ParseExt (data_p, true);
if (tok[1] == 0)
{
if (tok[0] == '{')
depth++;
else if (tok[0] == '}')
depth--;
}
} while (depth && *data_p);
}
/*
=================
COM_SkipRestOfLine
Skips until a new line is found
=================
*/
void COM_SkipRestOfLine (char **data_p)
{
char *tok;
while (1) {
tok = COM_ParseExt (data_p, false);
if (!tok[0])
break;
}
}
/*
==============
COM_Parse
Parse a token out of a string
==============
*/
char *COM_Parse (char **data_p)
{
int c;
int len;
char *data;
data = *data_p;
len = 0;
com_token[0] = 0;
if (!data)
{
*data_p = NULL;
return "";
}
// skip whitespace
skipwhite:
while ( (c = *data) <= ' ')
{
if (c == 0)
{
*data_p = NULL;
return "";
}
data++;
}
// skip // comments
if (c=='/' && data[1] == '/')
{
while (*data && *data != '\n')
data++;
goto skipwhite;
}
// handle quoted strings specially
if (c == '\"')
{
data++;
while (1)
{
c = *data++;
if (c=='\"' || !c)
{
if (len == MAX_TOKEN_CHARS) // Knightmare- discard if > MAX_TOKEN_CHARS-1
len = 0;
com_token[len] = 0;
*data_p = data;
return com_token;
}
if (len < MAX_TOKEN_CHARS)
{
com_token[len] = c;
len++;
}
}
}
// parse a regular word
do
{
if (len < MAX_TOKEN_CHARS)
{
com_token[len] = c;
len++;
}
data++;
c = *data;
} while (c>32);
if (len == MAX_TOKEN_CHARS)
{
// Com_Printf ("Token exceeded %i chars, discarded.\n", MAX_TOKEN_CHARS);
len = 0;
}
com_token[len] = 0;
*data_p = data;
return com_token;
}
/*
=================
Com_ParseExt
Parse a token out of a string
From Quake2Evolved
=================
*/
char *COM_ParseExt (char **data_p, qboolean allowNewLines)
{
int c, len = 0;
char *data;
qboolean hasNewLines = false;
data = *data_p;
com_token[0] = 0;
// Make sure incoming data is valid
if (!data) {
*data_p = NULL;
return com_token;
}
while (1)
{ // Skip whitespace
data = COM_SkipWhiteSpace (data, &hasNewLines);
if (!data) {
*data_p = NULL;
return com_token;
}
if (hasNewLines && !allowNewLines) {
*data_p = data;
return com_token;
}
c = *data;
// Skip // comments
if (c == '/' && data[1] == '/') {
while (*data && *data != '\n')
data++;
}
else if (c == '/' && data[1] == '*') // Skip /* */ comments
{
data += 2;
while (*data && (*data != '*' || data[1] != '/')) {
// if (*data == '\n')
// com_parseLine++;
data++;
}
if (*data)
data += 2;
}
else // An actual token
break;
}
// Handle quoted strings specially
if (c == '\"')
{
data++;
while (1)
{
c = *data++;
// if (c == '\n')
// com_parseLine++;
if (c == '\"' || !c)
{
if (len == MAX_TOKEN_CHARS) // Knightmare- discard if > MAX_TOKEN_CHARS-1
len = 0;
com_token[len] = 0;
*data_p = data;
return com_token;
}
if (len < MAX_TOKEN_CHARS)
com_token[len++] = c;
}
}
// Parse a regular word
do
{
if (len < MAX_TOKEN_CHARS)
com_token[len++] = c;
data++;
c = *data;
} while (c > 32);
if (len == MAX_TOKEN_CHARS)
len = 0;
com_token[len] = 0;
*data_p = data;
return com_token;
}
/*
===============
Com_PageInMemory
===============
*/
int paged_total;
void Com_PageInMemory (byte *buffer, int size)
{
int i;
for (i=size-1 ; i>0 ; i-=4096)
paged_total += buffer[i];
}
/*
============================================================================
LIBRARY REPLACEMENT FUNCTIONS
============================================================================
*/
/*
=================
Q_GlobMatchAfterStar
From Q2E
Like Q_GlobMatch, but match pattern against any final segment of text
=================
*/
static qboolean Q_GlobMatchAfterStar (const char *pattern, const char *text, qboolean caseSensitive){
const char *p = pattern;
const char *t = text;
char c1, c2;
while ((c1 = *p++) == '?' || c1 == '*'){
if (c1 == '?' && *t++ == '\0')
return false;
}
if (c1 == '\0')
return true;
if (c1 == '\\')
c2 = *p;
else
c2 = c1;
while (1){
if (caseSensitive){
if (c1 == '[' || *t == c2){
if (Q_GlobMatch(p - 1, t, caseSensitive))
return true;
}
}
else {
if (c1 == '[' || tolower(*t) == tolower(c2)){
if (Q_GlobMatch(p - 1, t, caseSensitive))
return true;
}
}
if (*t++ == '\0')
return false;
}
}
/*
=================
Q_GlobMatch
From Q2E
Matches the pattern against text.
Returns true if matches, false otherwise.
A match means the entire text is used up in matching.
In the pattern string, '*' matches any sequence of characters, '?'
matches any character, '[SET]' matches any character in the specified
set, '[!SET]' matches any character not in the specified set.
A set is composed of characters or ranges. A range looks like character
hyphen character (as in 0-9 or A-Z).
[0-9a-zA-Z_] is the set of characters allowed in C identifiers.
Any other character in the pattern must be matched exactly.
To suppress the special syntactic significance of any of '[]*?!-\', and
match the character exactly, precede it with a '\'.
=================
*/
qboolean Q_GlobMatch (const char *pattern, const char *text, qboolean caseSensitive){
const char *p = pattern;
const char *t = text;
char c1, c2, start, end;
qboolean invert;
while ((c1 = *p++) != '\0'){
switch (c1){
case '?':
if (*t == '\0')
return false;
else
++t;
break;
case '\\':
if (caseSensitive){
if (*p++ != *t++)
return false;
}
else {
if (tolower(*p++) != tolower(*t++))
return false;
}
break;
case '*':
return Q_GlobMatchAfterStar(p, t, caseSensitive);
case '[':
c2 = *t++;
if (!c2)
return false;
invert = (*p == '!');
if (invert)
p++;
c1 = *p++;
while (1){
start = c1;
end = c1;
if (c1 == '\\'){
start = *p++;
end = start;
}
if (c1 == '\0')
return false;
c1 = *p++;
if (c1 == '-' && *p != ']'){
end = *p++;
if (end == '\\')
end = *p++;
if (end == '\0')
return false;
c1 = *p++;
}
if (caseSensitive){
if (c2 >= start && c2 <= end)
goto match;
}
else {
if (tolower(c2) >= tolower(start) && tolower(c2) <= tolower(end))
goto match;
}
if (c1 == ']')
break;
}
if (!invert)
return false;
break;
match:
while (c1 != ']'){
if (c1 == '\0')
return false;
c1 = *p++;
if (c1 == '\0')
return false;
else if (c1 == '\\')
++p;
}
if (invert)
return false;
break;
default:
if (caseSensitive){
if (c1 != *t++)
return false;
}
else {
if (tolower(c1) != tolower(*t++))
return false;
}
break;
}
}
return (*t == '\0');
}
/*
===============
Q_StrScanToken
A non-ambiguous alternative to strstr.
Useful for parsing the GL extension string.
Similar to code in Fruitz of Dojo Quake2 MacOSX Port.
isCommand parm allows for ';' as separator.
===============
*/
qboolean Q_StrScanToken (const char *string, const char *findToken, qboolean isCommand)
{
int tokenLen;
const char *strPos;
char *tokPos, *terminatorPos;
if ( !string || !findToken )
return false;
if ( (strchr(findToken, ' ') != NULL) || (findToken[0] == 0) )
return false;
strPos = string;
tokenLen = (int)strlen(findToken);
while (1)
{
tokPos = strstr (strPos, findToken);
if ( !tokPos )
break;
terminatorPos = tokPos + tokenLen;
if (isCommand) {
if ( (tokPos == strPos || *(tokPos - 1) == ';' || *(tokPos - 1) == ' ') && (*terminatorPos == ';' || *terminatorPos == ' ' || *terminatorPos == 0) )
return true;
}
else {
if ( (tokPos == strPos || *(tokPos - 1) == ' ') && (*terminatorPos == ' ' || *terminatorPos == 0) )
return true;
}
strPos = terminatorPos;
}
return false;
}
/*
=================
Q_stricmp
=================
*/
// FIXME: replace all Q_stricmp with Q_strcasecmp
int Q_stricmp (char *s1, char *s2)
{
#if defined(WIN32)
return _stricmp (s1, s2);
#else
return strcasecmp (s1, s2);
#endif
}
/*
=================
Q_strncmp
From Q2E
=================
*/
int Q_strncmp (const char *string1, const char *string2, int n)
{
int c1, c2;
if (string1 == NULL)
{
if (string2 == NULL)
return 0;
else
return -1;
}
else if (string2 == NULL)
return 1;
do
{
c1 = *string1++;
c2 = *string2++;
if (!n--)
return 0; // Strings are equal until end point
if (c1 != c2)
return c1 < c2 ? -1 : 1;
} while (c1);
return 0; // Strings are equal
}
/*
=================
Q_strcmp
From Q2E
=================
*/
int Q_strcmp (const char *string1, const char *string2)
{
return Q_strncmp(string1, string2, 99999);
}
/*
=================
Q_SortStrcmp
From Q2E
=================
*/
int Q_SortStrcmp (const char **arg1, const char **arg2)
{
return Q_strcmp(*arg1, *arg2);
}
/*
=================
Q_strncasecmp
=================
*/
int Q_strncasecmp (char *s1, char *s2, size_t n)
{
int c1, c2;
do
{
c1 = *s1++;
c2 = *s2++;
if (!n--)
return 0; // strings are equal until end point
if (c1 != c2)
{
if (c1 >= 'a' && c1 <= 'z')
c1 -= ('a' - 'A');
if (c2 >= 'a' && c2 <= 'z')
c2 -= ('a' - 'A');
if (c1 != c2)
return -1; // strings not equal
}
} while (c1);
return 0; // strings are equal
}
/*
=================
Q_strcasecmp
=================
*/
int Q_strcasecmp (char *s1, char *s2)
{
return Q_strncasecmp (s1, s2, 99999);
}
/*
=================
Q_strncpyz
Safe strncpy that ensures a trailing zero
=================
*/
size_t Q_strncpyz (char *dst, size_t dstSize, const char *src)
{
char *d = dst;
const char *s = src;
size_t decSize = dstSize;
if (!dst) {
// Com_Error (ERR_FATAL, "Q_strncpyz: NULL dst");
// Com_Printf ("Q_strncpyz: NULL dst\n");
return 0;
}
if (!src) {
// Com_Error (ERR_FATAL, "Q_strncpyz: NULL src");
// Com_Printf ("Q_strncpyz: NULL src\n");
return 0;
}
if (dstSize < 1) {
// Com_Error (ERR_FATAL, "Q_strncpyz: dstSize < 1");
// Com_Printf ("Q_strncpyz: dstSize < 1\n");
return 0;
}
// strncpy(dst, src, dstSize-1);
// dst[dstSize-1] = 0;
while (--decSize && *s)
*d++ = *s++;
*d = 0;
dst[dstSize-1] = 0;
if (decSize == 0) // Insufficent room in dst, return count + length of remaining src
return (s - src - 1 + strlen(s));
else
return (s - src - 1); // returned count excludes NULL terminator
}
/*
=================
Q_strncatz
Safe strncat that ensures a trailing zero
=================
*/
size_t Q_strncatz (char *dst, size_t dstSize, const char *src)
{
char *d = dst;
const char *s = src;
size_t decSize = dstSize;
size_t dLen;
if (!dst) {
// Com_Error (ERR_FATAL, "Q_strncatz: NULL dst");
// Com_Printf ("Q_strncatz: NULL dst\n");
return 0;
}
if (!src) {
// Com_Error (ERR_FATAL, "Q_strncatz: NULL src");
// Com_Printf ("Q_strncatz: NULL src\n");
return 0;
}
if (dstSize < 1) {
// Com_Error (ERR_FATAL, "Q_strncatz: dstSize < 1");
// Com_Printf ("Q_strncatz: dstSize < 1\n");
return 0;
}
/* while (--dstSize && *dst)
dst++;
if (dstSize > 0){
while (--dstSize && *src)
*dst++ = *src++;
*dst = 0;
}*/
while (--decSize && *d)
d++;
dLen = d - dst;
if (decSize == 0)
return (dLen + strlen(s));
if (decSize > 0) {
while (--decSize && *s)
*d++ = *s++;
*d = 0;
}
dst[dstSize-1] = 0;
return (dLen + (s - src)); // returned count excludes NULL terminator
}
/*
=================
Q_snprintfz
Safe snprintf that ensures a trailing zero
=================
*/
void Q_snprintfz (char *dst, size_t dstSize, const char *fmt, ...)
{
va_list argPtr;
if (!dst) {
// Com_Error(ERR_FATAL, "Q_snprintfz: NULL dst");
// Com_Printf("Q_snprintfz: NULL dst\n");
return;
}
if (dstSize < 1) {
// Com_Error(ERR_FATAL, "Q_snprintfz: dstSize < 1");
// Com_Printf("Q_snprintfz: dstSize < 1\n");
return;
}
va_start(argPtr, fmt);
Q_vsnprintf(dst, dstSize, fmt, argPtr);
va_end(argPtr);
dst[dstSize-1] = 0;
}
char *Q_strlwr (char *string)
{
char *s = string;
while (*s) {
*s = tolower(*s);
s++;
}
return string;
}
char *Q_strupr (char *string)
{
char *s = string;
while (*s) {
*s = toupper(*s);
s++;
}
return string;
}
void Com_sprintf (char *dest, size_t size, char *fmt, ...)
{
char bigbuffer[0x10000];
int len;
va_list argptr;
va_start (argptr, fmt);
len = Q_vsnprintf (bigbuffer, sizeof(bigbuffer), fmt, argptr);
va_end (argptr);
// if (len >= size)
// Com_Printf ("Com_sprintf: overflow of %i in %i\n", len, size);
if (len < 0)
Com_Printf ("Com_sprintf: overflow in temp buffer of size %i\n", sizeof(bigbuffer));
else if (len >= size)
Com_Printf ("Com_sprintf: overflow of %i in dest buffer of size %i\n", len, size);
strncpy (dest, bigbuffer, size-1);
dest[size-1] = 0;
}
/*
=============
Com_HashFileName
=============
*/
unsigned int Com_HashFileName (const char *fname, int hashSize, qboolean sized)
{
int i = 0;
unsigned int hash = 0;
char letter;
if (fname[0] == '/' || fname[0] == '\\') i++; // skip leading slash
while (fname[i] != '\0')
{
letter = tolower(fname[i]);
// if (letter == '.') break;
if (letter == '\\') letter = '/'; // fix filepaths
hash += (int)(letter)*(i+119);
i++;
}
hash = (hash ^ (hash >> 10) ^ (hash >> 20));
if (sized) {
hash &= (hashSize-1);
}
return hash;
}
/*
=====================================================================
INFO STRINGS
=====================================================================
*/
/*
===============
Info_ValueForKey
Searches the string for the given
key and returns the associated value, or an empty string.
===============
*/
char *Info_ValueForKey (char *s, char *key)
{
char pkey[512];
static char value[2][512]; // use two buffers so compares
// work without stomping on each other
static int valueindex;
char *o;
valueindex ^= 1;
if (*s == '\\')
s++;
while (1)
{
o = pkey;
while (*s != '\\')
{
if (!*s)
return "";
*o++ = *s++;
}
*o = 0;
s++;
o = value[valueindex];
while (*s != '\\' && *s)
{
if (!*s)
return "";
*o++ = *s++;
}
*o = 0;
if (!strcmp (key, pkey) )
return value[valueindex];
if (!*s)
return "";
s++;
}
}
void Info_RemoveKey (char *s, char *key)
{
char *start;
char pkey[512];
char value[512];
char *o;
if (strstr (key, "\\"))
{
// Com_Printf ("Can't use a key with a \\\n");
return;
}
while (1)
{
start = s;
if (*s == '\\')
s++;
o = pkey;
while (*s != '\\')
{
if (!*s)
return;
*o++ = *s++;
}
*o = 0;
s++;
o = value;
while (*s != '\\' && *s)
{
if (!*s)
return;
*o++ = *s++;
}
*o = 0;
if (!strcmp (key, pkey) )
{
strcpy (start, s); // remove this part
return;
}
if (!*s)
return;
}
}
/*
==================
Info_Validate
Some characters are illegal in info strings because they
can mess up the server's parsing
==================
*/
qboolean Info_Validate (char *s)
{
if (strstr (s, "\""))
return false;
if (strstr (s, ";"))
return false;
return true;
}
void Info_SetValueForKey (char *s, char *key, char *value)
{
char newi[MAX_INFO_STRING], *v;
int c;
int maxsize = MAX_INFO_STRING;
if (strstr (key, "\\") || strstr (value, "\\") )
{
Com_Printf ("Can't use keys or values with a \\\n");
return;
}
if (strstr (key, ";") )
{
Com_Printf ("Can't use keys or values with a semicolon\n");
return;
}
if (strstr (key, "\"") || strstr (value, "\"") )
{
Com_Printf ("Can't use keys or values with a \"\n");
return;
}
if (strlen(key) > MAX_INFO_KEY-1 || strlen(value) > MAX_INFO_KEY-1)
{
Com_Printf ("Keys and values must be < 64 characters.\n");
return;
}
Info_RemoveKey (s, key);
if (!value || !strlen(value))
return;
Com_sprintf (newi, sizeof(newi), "\\%s\\%s", key, value);
if (strlen(newi) + strlen(s) > maxsize)
{
Com_Printf ("Info string length exceeded\n");
return;
}
// only copy ascii values
s += strlen(s);
v = newi;
while (*v)
{
c = *v++;
c &= 127; // strip high bits
if (c >= 32 && c < 127)
*s++ = c;
}
*s = 0;
}
//====================================================================