/*
Copyright (C) 1996-1997 Id Software, Inc.

This program 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.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
// view.c -- player eye positioning

#include "quakedef.h"

#include "winquake.h"
#include "glquake.h"
#include "shader.h"

#include <ctype.h> // for isdigit();

cvar_t r_projection = CVARD("r_projection", "0", "0: regular perspective.\n1: stereographic (aka: pannini).\n2: fisheye.\n3: panoramic.\n4: lambert azimuthal equal-area.\n5: Equirectangular");
cvar_t ffov = CVARFD("ffov", "", 0, "Allows you to set a specific field of view for when a custom projection is specified. If empty, will use regular fov cvar, which might get messy.");
#if defined(_WIN32) && !defined(MINIMAL)
//amusing gimmick / easteregg.
#include "winquake.h"
static cvar_t itburnsitburnsmakeitstop = CVARFD("itburnsitburnsmakeitstop", "0", CVAR_NOTFROMSERVER, "Ouch");
#endif

/*

The view is allowed to move slightly from it's true position for bobbing,
but if it exceeds 8 pixels linear distance (spherical, not box), the list of
entities sent from the server may not include everything in the pvs, especially
when crossing a water boudnary.

*/

#ifdef SIDEVIEWS
static struct
{
	cvar_t enabled;
	cvar_t x;
	cvar_t y;
	cvar_t scalex;
	cvar_t scaley;
	cvar_t yaw;
} sideview[SIDEVIEWS] = {
	{CVAR("v2_enabled", "2"),	CVAR("v2_x", "0"),		CVAR("v2_y", "0"),	CVAR("v2_scalex", "0.25"),	CVAR("v2_scaley", "0.25"), CVAR("v2_yaw", "180")},
#if SIDEVIEWS > 1
	{CVAR("v3_enabled", "2"),	CVAR("v3_x", "0.25"),	CVAR("v3_y", "0"),	CVAR("v3_scalex", "0.25"),	CVAR("v3_scaley", "0.25"), CVAR("v3_yaw", "90")},
#endif
#if SIDEVIEWS > 2
	{CVAR("v4_enabled", "2"),	CVAR("v4_x", "0.5"),	CVAR("v4_y", "0"),	CVAR("v4_scalex", "0.25"),	CVAR("v4_scaley", "0.25"), CVAR("v4_yaw", "270")},
#endif
#if SIDEVIEWS > 3
	{CVAR("v5_enabled", "2"),	CVAR("v5_x", "0.75"),	CVAR("v5_y", "0"),	CVAR("v5_scalex", "0.25"),	CVAR("v5_scaley", "0.25"), CVAR("v5_yaw", "0")},
#endif
};
#endif

cvar_t	cl_rollspeed			= CVARD("cl_rollspeed", "200", "Controls the speed required to reach cl_rollangle's tilt.");
static cvar_t	cl_rollangle			= CVARD("cl_rollangle", "2.0", "Controls the maximum view should tilt while strafing.");
static cvar_t	cl_rollalpha			= CVARD("cl_rollalpha", "20", "Controls the speed at which the view rolls according to sideways movement.");
static cvar_t	v_deathtilt				= CVARD("v_deathtilt", "1", "Specifies whether to tilt the view when dead.");

static cvar_t	cl_bob					= CVARD("cl_bob","0.02", "Controls how much the camera position should bob up down as the player runs around.");
static cvar_t	cl_bobcycle				= CVAR("cl_bobcycle","0.6");
static cvar_t	cl_bobup				= CVAR("cl_bobup","0.5");

static cvar_t	cl_bobmodel				= CVARD("cl_bobmodel", "0", "Controls whether the viewmodel should bob up and down as the player runs around.");
static cvar_t	cl_bobmodel_side		= CVAR("cl_bobmodel_side", "0.15");
static cvar_t	cl_bobmodel_up			= CVAR("cl_bobmodel_up", "0.06");
static cvar_t	cl_bobmodel_speed		= CVAR("cl_bobmodel_speed", "7");

static cvar_t	v_kicktime				= CVARD("v_kicktime", "0.5", "This controls how long viewangle changes from taking damage will last.");
static cvar_t	v_kickroll				= CVARD("v_kickroll", "0.6", "This controls part of the strength of viewangle changes from taking damage.");
static cvar_t	v_kickpitch				= CVARD("v_kickpitch", "0.6", "This controls part of the strength of viewangle changes from taking damage.");

static cvar_t	v_iyaw_cycle			= CVAR("v_iyaw_cycle", "2");
static cvar_t	v_iroll_cycle			= CVAR("v_iroll_cycle", "0.5");
static cvar_t	v_ipitch_cycle			= CVAR("v_ipitch_cycle", "1");
static cvar_t	v_iyaw_level			= CVAR("v_iyaw_level", "0.3");
static cvar_t	v_iroll_level			= CVAR("v_iroll_level", "0.1");
static cvar_t	v_ipitch_level			= CVAR("v_ipitch_level", "0.3");
static cvar_t	v_idlescale				= CVARD("v_idlescale", "0", "Enable swishing of the view (whether idle or otherwise). Often used for concussion effects.");

cvar_t	crosshair				= CVARF("crosshair", "1", CVAR_ARCHIVE);
cvar_t	crosshaircolor			= CVARF("crosshaircolor", "255 255 255", CVAR_ARCHIVE);
cvar_t	crosshairsize			= CVARF("crosshairsize", "8", CVAR_ARCHIVE);

cvar_t	cl_crossx				= CVARF("cl_crossx", "0", CVAR_ARCHIVE);
cvar_t	cl_crossy				= CVARF("cl_crossy", "0", CVAR_ARCHIVE);
cvar_t	crosshaircorrect		= CVARFD("crosshaircorrect", "0", CVAR_SEMICHEAT, "Moves the crosshair around to represent the impact point of a weapon positioned below the actual view position.");
cvar_t	crosshairimage			= CVARD("crosshairimage", "", "Enables the use of an external/custom crosshair image");
cvar_t	crosshairalpha			= CVAR("crosshairalpha", "1");

static qboolean v_skyroom_set;
static vec4_t v_skyroom_origin;
static vec4_t v_skyroom_orientation;
static void QDECL V_Skyroom_Changed(struct cvar_s *var, char *oldvalue)
{
	char tok[64];
	char *line = var->string;
	if (*line)
		v_skyroom_set = true;
	else
		v_skyroom_set = false;
	line = COM_ParseTokenOut(line, NULL, tok, sizeof(tok), NULL);
	v_skyroom_origin[0] = atof(tok);
	line = COM_ParseTokenOut(line, NULL, tok, sizeof(tok), NULL);
	v_skyroom_origin[1] = atof(tok);
	line = COM_ParseTokenOut(line, NULL, tok, sizeof(tok), NULL);
	v_skyroom_origin[2] = atof(tok);
	line = COM_ParseTokenOut(line, NULL, tok, sizeof(tok), NULL);
	v_skyroom_origin[3] = atof(tok);

	line = COM_ParseTokenOut(line, NULL, tok, sizeof(tok), NULL);
	v_skyroom_orientation[3] = atof(tok);
	line = COM_ParseTokenOut(line, NULL, tok, sizeof(tok), NULL);
	v_skyroom_orientation[0] = atof(tok);
	line = COM_ParseTokenOut(line, NULL, tok, sizeof(tok), NULL);
	v_skyroom_orientation[1] = atof(tok);
	line = COM_ParseTokenOut(line, NULL, tok, sizeof(tok), NULL);
	v_skyroom_orientation[2] = atof(tok);
}
cvar_t	v_skyroom		= CVARFCD("skyroom", "", CVAR_SEMICHEAT, V_Skyroom_Changed, "Specifies the center position of the skyroom's view. Skyrooms are drawn instead of skyboxes (typically with their own skybox around them). Entities in skyrooms will be drawn only when r_ignoreentpvs is 0. Can also be set with the _skyroom worldspawn key. This is overriden by csqc's VF_SKYROOM_CAMERA.");

static cvar_t	gl_cshiftpercent		= CVAR("gl_cshiftpercent", "100");
cvar_t	gl_cshiftenabled		= CVARFD("gl_polyblend", "1", CVAR_ARCHIVE, "Controls whether temporary whole-screen colour changes should be honoured or not. Change gl_cshiftpercent if you want to adjust the intensity.\nThis does not affect v_cshift commands sent from the server.");
cvar_t	gl_cshiftborder			= CVARD("gl_polyblend_edgesize", "128", "This constrains colour shifts to the edge of the screen, with the value specifying the size of those borders.");

static cvar_t	v_bonusflash			= CVARD("v_bonusflash", "1", "Controls the strength of temporary screen flashes when picking up items (gl_polyblend must be enabled).");

cvar_t  v_contentblend			= CVARFD("v_contentblend", "1", CVAR_ARCHIVE, "Controls the strength of underwater colour tints (gl_polyblend must be enabled).");
static cvar_t	v_damagecshift			= CVARD("v_damagecshift", "1", "Controls the strength of damage-taken colour tints (gl_polyblend must be enabled).");
static cvar_t	v_quadcshift			= CVARD("v_quadcshift", "1", "Controls the strength of quad-damage colour tints (gl_polyblend must be enabled).");
static cvar_t	v_suitcshift			= CVARD("v_suitcshift", "1", "Controls the strength of envirosuit colour tints (gl_polyblend must be enabled).");
static cvar_t	v_ringcshift			= CVARD("v_ringcshift", "1", "Controls the strength of ring-of-invisibility colour tints (gl_polyblend must be enabled).");
static cvar_t	v_pentcshift			= CVARD("v_pentcshift", "1", "Controls the strength of pentagram-of-protection colour tints (gl_polyblend must be enabled).");
static cvar_t	v_gunkick				= CVARD("v_gunkick", "0", "Controls the strength of view angle changes when firing weapons.");
cvar_t	v_gunkick_q2			= CVARD("v_gunkick_q2", "1", "Controls the strength of view angle changes when firing weapons (in Quake2).");
static cvar_t	v_viewmodel_quake		= CVARD("r_viewmodel_quake", "0", "Controls whether to use weird viewmodel movements from vanilla quake.");	//name comes from MarkV.

cvar_t	v_viewheight			= CVARF("v_viewheight", "0", CVAR_ARCHIVE);
//static cvar_t	v_projectionmode		= CVARF("v_projectionmode", "0", CVAR_ARCHIVE);

static cvar_t	v_depthsortentities		= CVARAD("v_depthsortentities", "0", "v_reorderentitiesrandomly", "Reorder entities for transparency such that the furthest entities are drawn first, allowing nearer transparent entities to draw over the top of them.");

#ifdef QUAKESTATS
static cvar_t	scr_autoid				= CVARD("scr_autoid", "1", "Display nametags above all players while spectating.");
static cvar_t	scr_autoid_team			= CVARD("scr_autoid_team", "2", "Display nametags above team members. 0: off. 1: display with half-alpha if occluded. 2: hide when occluded.");
static cvar_t	scr_autoid_health		= CVARD("scr_autoid_health", "1", "Display health as part of nametags (when known).");
static cvar_t	scr_autoid_armour		= CVARD("scr_autoid_armor", "1", "Display armour as part of nametags (when known).");
static cvar_t	scr_autoid_weapon		= CVARD("scr_autoid_weapon", "1", "Display the player's best weapon as part of their nametag (when known).");
static cvar_t	scr_autoid_weapon_mask	= CVARD("scr_autoid_weapon_mask", "126", "Mask of bits for weapon icons to actually show.\n+1: Shotgun.\n+2: Super Shotgun.\n+4: Nail Gun.\n+8: Super Nail Gun.\n+16: Grenade Launcher.\n+32: Rocket Launcher.\n+64: Lightning\nShowing only RL and GL is 96\n");
static cvar_t	scr_autoid_teamcolour	= CVARD("scr_autoid_teamcolour", STRINGIFY(COLOR_BLUE), "The colour for the text on the nametags of team members.");
static cvar_t	scr_autoid_enemycolour	= CVARD("scr_autoid_enemycolour", STRINGIFY(COLOR_WHITE), "The colour for the text on the nametags of non-team members.");
#endif

cvar_t	chase_active			= CVAR("chase_active", "0");
cvar_t	chase_back				= CVAR("chase_back", "48");
cvar_t	chase_up				= CVAR("chase_up", "24");


extern cvar_t cl_chasecam;

static player_state_t		*view_message;

/*
===============
V_CalcRoll

===============
*/
float V_CalcRoll (vec3_t angles, vec3_t velocity)
{
	vec3_t	forward, right, up;
	float	sign;
	float	side;
	float	value;

	AngleVectors (angles, forward, right, up);
	side = DotProduct (velocity, right);
	sign = side < 0 ? -1 : 1;
	side = fabs(side);

	value = cl_rollangle.value;

	if (side < cl_rollspeed.value)
		side = side * value / cl_rollspeed.value;
	else
		side = value;

	return side*sign;

}


/*
===============
V_CalcBob

===============
*/
float V_CalcBob (playerview_t *pv, qboolean queryold)
{
	float	cycle;
	float	hspeed, bob;
	vec3_t	hvel;

	if (pv->spectator)
		return 0;

	if (cl_bobcycle.value <= 0 || cl.intermissionmode != IM_NONE)
		return 0;

	if (!pv->onground || cl.paused)
	{
		pv->bobcltime = cl.time;
		return pv->bob;		// just use old value. FIXME: diminish over time.
	}

	pv->bobtime += cl.time - pv->bobcltime;
	pv->bobcltime = cl.time;
	cycle = pv->bobtime - (int)(pv->bobtime/cl_bobcycle.value)*cl_bobcycle.value;
	cycle /= cl_bobcycle.value;
	if (cycle < cl_bobup.value)
		cycle = M_PI * cycle / cl_bobup.value;
	else
		cycle = M_PI + M_PI*(cycle-cl_bobup.value)/(1.0 - cl_bobup.value);

// bob is proportional to simulated velocity in the xy plane
// (don't count Z, or jumping messes it up)
	hspeed = DotProduct(pv->simvel, pv->gravitydir);
	VectorMA(pv->simvel, hspeed, pv->gravitydir, hvel);
	hspeed = VectorLength(hvel);
	hspeed = bound(0, hspeed, 400);
	bob = hspeed * bound(0, cl_bob.value, 0.05);
	pv->bob = bob*0.3 + bob*0.7*sin(cycle);
	return pv->bob;

}


//=============================================================================


static cvar_t	v_centermove = CVAR("v_centermove", "0.15");
static cvar_t	v_centerspeed = CVAR("v_centerspeed","500");


void V_StartPitchDrift (playerview_t *pv)
{
#if 1
	if (pv->laststop == cl.time)
	{
		return;		// something else is keeping it from drifting
	}
#endif
	if (pv->nodrift || !pv->pitchvel)
	{
		pv->pitchvel = v_centerspeed.value;
		pv->nodrift = false;
		pv->driftmove = 0;
	}
}

void V_StopPitchDrift (playerview_t *pv)
{
	pv->laststop = cl.time;
	pv->nodrift = true;
	pv->pitchvel = 0;
}

void V_CenterView_f(void)
{
	int pnum = CL_TargettedSplit(false);
	V_StartPitchDrift(&cl.playerview[pnum]);
}

/*
===============
V_DriftPitch

Moves the client pitch angle towards cl.idealpitch sent by the server.

If the user is adjusting pitch manually, either with lookup/lookdown,
mlook and mouse, or klook and keyboard, pitch drifting is constantly stopped.

Drifting is enabled when the center view key is hit, mlook is released and
lookspring is non 0, or when
===============
*/
void V_DriftPitch (playerview_t *pv)
{
	float		delta, move;

	if (!pv->onground || cls.demoplayback )
	{
		pv->driftmove = 0;
		pv->pitchvel = 0;
		return;
	}

// don't count small mouse motion
	if (pv->nodrift)
	{
		if (Length(pv->simvel) < 200)
			pv->driftmove = 0;
		else
			pv->driftmove += host_frametime;

		if ( pv->driftmove > v_centermove.value)
		{
			V_StartPitchDrift (pv);
		}
		return;
	}

	delta = 0 - pv->viewangles[PITCH];

	if (!delta)
	{
		pv->pitchvel = 0;
		return;
	}

	move = host_frametime * pv->pitchvel;
	pv->pitchvel += host_frametime * v_centerspeed.value;

//Con_Printf ("move: %f (%f)\n", move, host_frametime);

	if (delta > 0)
	{
		if (move > delta)
		{
			pv->pitchvel = 0;
			move = delta;
		}
		pv->viewangles[PITCH] += move;
	}
	else if (delta < 0)
	{
		if (move > -delta)
		{
			pv->pitchvel = 0;
			move = -delta;
		}
		pv->viewangles[PITCH] -= move;
	}
}





/*
==============================================================================

						PALETTE FLASHES

==============================================================================
*/

static void QDECL V_Gamma_Callback(struct cvar_s *var, char *oldvalue);

static cshift_t	cshift_empty = { {130,80,50}, 0 };
static cshift_t	cshift_water = { {130,80,50}, 128 };
static cshift_t	cshift_slime = { {0,25,5}, 150 };
static cshift_t	cshift_lava = { {255,80,0}, 150 };

//static cshift_t	cshift_server = { {130,80,50}, 0 };

cvar_t		v_gamma = CVARAFCD("gamma", "1.0", "v_gamma", CVAR_ARCHIVE|CVAR_RENDERERCALLBACK, V_Gamma_Callback, "Controls how bright the screen is. Setting this to anything but 1 without hardware gamma requires glsl support and can noticably harm your framerate.");
cvar_t		v_gammainverted = CVARFCD("v_gammainverted", "0", CVAR_ARCHIVE, V_Gamma_Callback, "Boolean that controls whether the gamma should be inverted (like quake) or not.");
cvar_t		v_contrast = CVARAFCD("contrast", "1.0", "v_contrast", CVAR_ARCHIVE, V_Gamma_Callback, "Scales colour values linearly to make your screen easier to see. Setting this to anything but 1 without hardware gamma will reduce your framerates a little.");
cvar_t		v_contrastboost = CVARFCD("v_contrastboost", "1.0", CVAR_ARCHIVE, V_Gamma_Callback, "Amplifies contrast in dark areas");
cvar_t		v_brightness = CVARAFCD("brightness", "0.0", "v_brightness", CVAR_ARCHIVE, V_Gamma_Callback, "Brightness is how much 'white' to add to each and every pixel on the screen.");

qbyte		gammatable[256];	// palette is sent through this


qboolean		gammaworks;
float		hw_blend[4];		// rgba 0.0 - 1.0
/*
void BuildGammaTable (float g)
{
	int		i, inf;

	if (g == 1.0)
	{
		for (i=0 ; i<256 ; i++)
			gammatable[i] = i;
		return;
	}

	for (i=0 ; i<256 ; i++)
	{
		inf = 255 * pow ( (i+0.5)/255.5 , g ) + 0.5;
		if (inf < 0)
			inf = 0;
		if (inf > 255)
			inf = 255;
		gammatable[i] = inf;
	}
}*/
void BuildGammaTable (float gamma, float cscale, float cboost, float brightness)
{
	int i, inf;
	float t;

//	gamma = bound (0.1, gamma, 3);
//	cscale = bound (1, cscale, 3);

	if (gamma == 1 && cscale == 1 && cboost == 1 && brightness == 0)
	{
		for (i = 0; i < 256; i++)
			gammatable[i] = i;
		return;
	}

	for (i = 0; i < 256; i++)
	{
		//the 0.5s are for rounding.
		t = (i + 0.5) / 255.5; //scale the lighting
		t = cboost * t/((cboost-1)*t + 1);
		inf = 255 * (pow (t, gamma)*cscale + brightness) + 0.5;
		gammatable[i] = bound(0, inf, 255);
	}	
}

/*
=================
V_CheckGamma
=================
*/
static void QDECL V_Gamma_Callback(struct cvar_s *var, char *oldvalue)
{
	BuildGammaTable (v_gammainverted.ival?v_gamma.value:(1/v_gamma.value), v_contrast.value, v_contrastboost.value, v_brightness.value);
	V_UpdatePalette (true);
}

#if defined(_WIN32) && !defined(_XBOX)
void W32_BlowChunk(vec3_t pos, float radius)
{
	vec3_t center;
	if (Matrix4x4_CM_Project(pos, center, r_refdef.viewangles, r_refdef.vieworg, r_refdef.fov_x, r_refdef.fov_y))
	{
		int mid_x = center[0]*r_refdef.vrect.width+r_refdef.vrect.x;
		int mid_y = (1-center[1])*r_refdef.vrect.height+r_refdef.vrect.y;

		HRGN tmp = CreateRectRgn(0,0,0,0);
		HRGN newrgn = CreateRectRgn(0,0,0,0);
		HRGN oldrgn = CreateRectRgn(0,0,0,0);
		HRGN hole = CreateEllipticRgn(mid_x-radius, mid_y-radius, mid_x+radius, mid_y+radius);
		if (GetWindowRgn(mainwindow, oldrgn) <= NULLREGION)
		{
			RECT rect;
			DeleteObject(oldrgn);
			GetWindowRect(mainwindow, &rect);
			oldrgn = CreateRectRgn(0,0,rect.right-rect.left,rect.bottom-rect.top);
		}
		CombineRgn(tmp, oldrgn, hole, RGN_XOR);
		CombineRgn(newrgn, oldrgn, tmp, RGN_AND);
		DeleteObject(oldrgn);
		DeleteObject(hole);
		DeleteObject(tmp);
		SetWindowRgn(mainwindow, newrgn, TRUE);
	}
}
#endif


/*
===============
V_ParseDamage
===============
*/
void V_ParseDamage (playerview_t *pv)
{
	int		armor, blood;
	vec3_t	from;
	int		i;
	vec3_t	forward, right, up;
	float	side;
	float	count;

	armor = MSG_ReadByte ();
	blood = MSG_ReadByte ();
	for (i=0 ; i<3 ; i++)
		from[i] = MSG_ReadCoord ();

	pv->faceanimtime = cl.time + 0.2;		// but sbar face into pain frame

#if defined(_WIN32) && !defined(MINIMAL) && !defined(_XBOX)
	if (itburnsitburnsmakeitstop.value > 0)
		W32_BlowChunk(from, (armor+blood) * itburnsitburnsmakeitstop.value);
#endif

#ifdef CSQC_DAT
	if (CSQC_Parse_Damage(pv-cl.playerview, armor, blood, from))
		return;
#endif

	count = blood*0.5 + armor*0.5;
	if (count < 10)
		count = 10;

#ifdef ANDROID
	//later versions of android might support strength values, but the simple standard interface is duration only.
	Sys_Vibrate(count);
#endif

	if (v_damagecshift.value >= 0)
		pv->cshifts[CSHIFT_DAMAGE].percent += 3*count*v_damagecshift.value;
	else
		pv->cshifts[CSHIFT_DAMAGE].percent += 3*count;
	if (pv->cshifts[CSHIFT_DAMAGE].percent < 0)
		pv->cshifts[CSHIFT_DAMAGE].percent = 0;
	if (pv->cshifts[CSHIFT_DAMAGE].percent > 150)
		pv->cshifts[CSHIFT_DAMAGE].percent = 150;

	if (armor > blood)
	{
		pv->cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
		pv->cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
		pv->cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
	}
	else if (armor)
	{
		pv->cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
		pv->cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
		pv->cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
	}
	else
	{
		pv->cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
		pv->cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
		pv->cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
	}

//
// calculate view angle kicks
//
	VectorSubtract (from, pv->simorg, from);
	VectorNormalize (from);

	AngleVectors (pv->simangles, forward, right, up);

	side = DotProduct (from, right);
	pv->v_dmg_roll = count*side*v_kickroll.value;

	side = DotProduct (from, forward);
	pv->v_dmg_pitch = count*side*v_kickpitch.value;

	pv->v_dmg_time = v_kicktime.value;
}


/*
==================
V_cshift_f
==================
*/
void V_cshift_f (void)
{
	int r, g, b, p;
	playerview_t *pv = &cl.playerview[CL_TargettedSplit(true)];

	r = g = b = p = 0;

	if (Cmd_Argc() >= 5)
	{
		r = atoi(Cmd_Argv(1));
		g = atoi(Cmd_Argv(2));
		b = atoi(Cmd_Argv(3));
		p = atoi(Cmd_Argv(4));
	}

	if (Cmd_FromGamecode())
	{
		if (Cmd_Argc() >= 5)
		{
			qboolean term = false;
			int i;
			char *c = Cmd_Argv(4);

			// malice jumbles commands into a v_cshift so this attempts to fix
			while (isdigit(*c) || *c == '.')
				c++;

			if (*c)
			{
				Cbuf_AddText(c, RESTRICT_SERVER);
				term = true;
			}
			for (i = 5; i < Cmd_Argc(); i++)
			{
				Cbuf_AddText(" ", RESTRICT_SERVER);
				Cbuf_AddText(Cmd_Argv(i), RESTRICT_SERVER);
				term = true;
			}
			if (term)
				Cbuf_AddText("\n", RESTRICT_SERVER);
		}
		else if (Cmd_Argc() > 1)
			Con_DPrintf("broken v_cshift from gamecode\n");

		// ensure we always clear out or set for nehahra
		pv->cshifts[CSHIFT_SERVER].destcolor[0] = r;
		pv->cshifts[CSHIFT_SERVER].destcolor[1] = g;
		pv->cshifts[CSHIFT_SERVER].destcolor[2] = b;
		pv->cshifts[CSHIFT_SERVER].percent = p;
		return;
	}

	if (Cmd_Argc() != 5 && Cmd_Argc() != 1)
	{
		Con_Printf("v_cshift: v_cshift <r> <g> <b> <alpha>\n");
		return;
	}

	cshift_empty.destcolor[0] = r;
	cshift_empty.destcolor[1] = g;
	cshift_empty.destcolor[2] = b;
	cshift_empty.percent = p;
}


/*
==================
V_BonusFlash_f

When you run over an item, the server sends this command
==================
*/
void V_BonusFlash_f (void)
{
	playerview_t *pv = &cl.playerview[CL_TargettedSplit(true)];
	float frac;
	if (!gl_cshiftenabled.ival)
		frac = 0;
	else if (Cmd_FromGamecode())
		frac = v_bonusflash.value;
	else
		frac = 1;

	{
		//still adheres to gl_cshiftpercent even when forced.
		float minfrac = atof(Cmd_Argv(5));
		if (frac < minfrac)
			frac = minfrac;
	}

	frac *= gl_cshiftpercent.value / 100.0;

	if (frac)
	{
		if (Cmd_Argc() > 1)
		{	//this is how I understand DP expects them.
			pv->cshifts[CSHIFT_BONUS].destcolor[0] = atof(Cmd_Argv(1))*255;
			pv->cshifts[CSHIFT_BONUS].destcolor[1] = atof(Cmd_Argv(2))*255;
			pv->cshifts[CSHIFT_BONUS].destcolor[2] = atof(Cmd_Argv(3))*255;
			pv->cshifts[CSHIFT_BONUS].percent = atof(Cmd_Argv(4))*255*frac;
		}
		else
		{
			pv->cshifts[CSHIFT_BONUS].destcolor[0] = 215;
			pv->cshifts[CSHIFT_BONUS].destcolor[1] = 186;
			pv->cshifts[CSHIFT_BONUS].destcolor[2] = 69;
			pv->cshifts[CSHIFT_BONUS].percent = 50*frac;
		}
	}
}
void V_DarkFlash_f (void)
{
	playerview_t *pv = &cl.playerview[CL_TargettedSplit(true)];
	float frac;
	if (!gl_cshiftenabled.ival)
		frac = 0;
	else
		frac = 1;
	frac *= gl_cshiftpercent.value / 100.0;

	pv->cshifts[CSHIFT_BONUS].destcolor[0] = 0;
	pv->cshifts[CSHIFT_BONUS].destcolor[1] = 0;
	pv->cshifts[CSHIFT_BONUS].destcolor[2] = 0;
	pv->cshifts[CSHIFT_BONUS].percent = 255*frac;
}
void V_WhiteFlash_f (void)
{
	playerview_t *pv = &cl.playerview[CL_TargettedSplit(true)];
	float frac;
	if (!gl_cshiftenabled.ival)
		frac = 0;
	else
		frac = 1;
	frac *= gl_cshiftpercent.value / 100.0;

	pv->cshifts[CSHIFT_BONUS].destcolor[0] = 255;
	pv->cshifts[CSHIFT_BONUS].destcolor[1] = 255;
	pv->cshifts[CSHIFT_BONUS].destcolor[2] = 255;
	pv->cshifts[CSHIFT_BONUS].percent = 255*frac;
}

/*
=============
V_SetContentsColor

Underwater, lava, etc each has a color shift

FIXME: Uses Q1 contents
=============
*/
void V_SetContentsColor (int contents)
{
	int i;
	playerview_t *pv = r_refdef.playerview;

	if (contents & FTECONTENTS_LAVA)
		pv->cshifts[CSHIFT_CONTENTS] = cshift_lava;
	else if (contents & (FTECONTENTS_SLIME | FTECONTENTS_SOLID))
		pv->cshifts[CSHIFT_CONTENTS] = cshift_slime;
	else if (contents & FTECONTENTS_WATER)
		pv->cshifts[CSHIFT_CONTENTS] = cshift_water;
	else
		pv->cshifts[CSHIFT_CONTENTS] = cshift_empty;

	pv->cshifts[CSHIFT_CONTENTS].percent *= v_contentblend.value;

	if (pv->cshifts[CSHIFT_CONTENTS].percent)
	{	//bound contents so it can't go negative
		if (pv->cshifts[CSHIFT_CONTENTS].percent < 0)
			pv->cshifts[CSHIFT_CONTENTS].percent = 0;

		for (i = 0; i < 3; i++)
			if (pv->cshifts[CSHIFT_CONTENTS].destcolor[0] < 0)
				pv->cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
	}
}

/*
=============
V_CalcPowerupCshift
=============
*/
void V_CalcPowerupCshift (playerview_t *pv)
{
#ifdef QUAKESTATS
	int im = pv->stats[STAT_ITEMS];

	if (im & IT_QUAD)
	{
		pv->cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
		pv->cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
		pv->cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
		pv->cshifts[CSHIFT_POWERUP].percent = 30*v_quadcshift.value;
	}
	else if (im & IT_SUIT)
	{
		pv->cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
		pv->cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
		pv->cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
		pv->cshifts[CSHIFT_POWERUP].percent = 20*v_suitcshift.value;
	}
	else if (im & IT_INVISIBILITY)
	{
		pv->cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
		pv->cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
		pv->cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
		pv->cshifts[CSHIFT_POWERUP].percent = 100*v_ringcshift.value;
	}
	else if (im & IT_INVULNERABILITY)
	{
		pv->cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
		pv->cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
		pv->cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
		pv->cshifts[CSHIFT_POWERUP].percent = 30*v_pentcshift.value;
	}
	else
		pv->cshifts[CSHIFT_POWERUP].percent = 0;

	if (pv->cshifts[CSHIFT_POWERUP].percent<0)
		pv->cshifts[CSHIFT_POWERUP].percent=0;
#endif
}


/*
=============
V_CalcBlend
=============
*/
void V_CalcBlend (float *hw_blend)
{
	extern qboolean r2d_canhwgamma;
	float	a2;
	int		j, seat;
	float *blend;
	playerview_t *pv;

	memset(hw_blend, 0, sizeof(float)*4);
	for (seat = 0; seat < cl.splitclients; seat++)
	{
		pv = &cl.playerview[seat];
		memset(pv->screentint, 0, sizeof(pv->screentint));
		memset(pv->bordertint, 0, sizeof(pv->bordertint));

		//don't apply it to the server, we'll blend the two later if the user has no hardware gamma (if they do have it, we use just the server specified value) This way we avoid winnt users having a cheat with flashbangs and stuff.
		for (j=0 ; j<NUM_CSHIFTS ; j++)
		{
			if (j != CSHIFT_SERVER && j != CSHIFT_BONUS)
			{
				if (!gl_cshiftpercent.value || !gl_cshiftenabled.ival)
					continue;

				a2 = ((pv->cshifts[j].percent * gl_cshiftpercent.value) / 100.0) / 255.0;
			}
			else
			{
				a2 = pv->cshifts[j].percent / 255.0;	//don't allow modification of this one.
			}

			if (a2 <= 0)
				continue;

			if (j == CSHIFT_SERVER)
			{
				/*server blend always goes into sw, ALWAYS. hardware is too unreliable.*/
				blend = pv->screentint;
			}
			else
			{
				/*flashing things should not change hardware gamma ramps - windows is too slow*/
				/*splitscreen should only use hw gamma ramps if they're all equal, and they're probably not*/
				/*hw blends may also not be supported or may be disabled*/
				if (gl_cshiftenabled.ival == 2)
					blend = pv->bordertint;	//show the colours only on the borders so we don't blind ourselves
				else if (j == CSHIFT_BONUS || j == CSHIFT_DAMAGE || gl_nohwblend.ival || !r2d_canhwgamma || cl.splitclients > 1)
					blend = pv->screentint;
				else	//powerup or contents?
					blend = hw_blend;
			}

			blend[3] = blend[3] + a2*(1-blend[3]);
			a2 = a2/blend[3];
			blend[0] = blend[0]*(1-a2) + pv->cshifts[j].destcolor[0]*a2/255.0;
			blend[1] = blend[1]*(1-a2) + pv->cshifts[j].destcolor[1]*a2/255.0;
			blend[2] = blend[2]*(1-a2) + pv->cshifts[j].destcolor[2]*a2/255.0;
		}

		if (pv->screentint[3] > 1)
			pv->screentint[3] = 1;
		if (pv->screentint[3] < 0)
			pv->screentint[3] = 0;
	}
	for (; seat < MAX_SPLITS; seat++)
	{
		pv = &cl.playerview[seat];
		memset(pv->screentint, 0, sizeof(pv->screentint));
		memset(pv->bordertint, 0, sizeof(pv->bordertint));
	}
	if (hw_blend[3] > 1)
		hw_blend[3] = 1;
	if (hw_blend[3] < 0)
		hw_blend[3] = 0;
}

/*
=============
V_UpdatePalette
=============
*/
void V_UpdatePalette (qboolean force)
{
	extern	qboolean r2d_canhwgamma;
	int		i;
	float	newhw_blend[4];
	int		ir, ig, ib;
	float	ftime;
	qboolean applied;
	static double oldtime;
	RSpeedMark();

	ftime = cl.time - oldtime;
	oldtime = cl.time;
	if (ftime < 0)
		ftime = 0;

	for (i = 0; i < MAX_SPLITS; i++)
	{
		playerview_t *pv = &cl.playerview[i];
		V_CalcPowerupCshift(pv);
	// drop the damage value
		pv->cshifts[CSHIFT_DAMAGE].percent -= ftime*150;
		if (pv->cshifts[CSHIFT_DAMAGE].percent <= 0)
			pv->cshifts[CSHIFT_DAMAGE].percent = 0;

	// drop the bonus value
		pv->cshifts[CSHIFT_BONUS].percent -= ftime*100;
		if (pv->cshifts[CSHIFT_BONUS].percent <= 0)
			pv->cshifts[CSHIFT_BONUS].percent = 0;
	}

	V_CalcBlend(newhw_blend);

	if (hw_blend[0] != newhw_blend[0] || hw_blend[1] != newhw_blend[1] || hw_blend[2] != newhw_blend[2] || hw_blend[3] != newhw_blend[3] || force)
	{
		float r,g,b,a;
		static unsigned short		allramps[3*2048];
		unsigned int rampsize = min(vid.gammarampsize, countof(allramps)/3);
		unsigned short *ramps[3] = {&allramps[0],&allramps[rampsize],&allramps[rampsize*2]};
		Vector4Copy(newhw_blend, hw_blend);

		a = hw_blend[3];
		r = 255*hw_blend[0]*a;
		g = 255*hw_blend[1]*a;
		b = 255*hw_blend[2]*a;

		a = 1-a;
		a *= 256.0/rampsize;
		for (i=0 ; i < rampsize; i++)
		{
			ir = i*a + r;
			ig = i*a + g;
			ib = i*a + b;
			if (ir > 255)
				ir = 255;
			if (ig > 255)
				ig = 255;
			if (ib > 255)
				ib = 255;

			//FIXME: shit precision
			ramps[0][i] = gammatable[ir]<<8;
			ramps[1][i] = gammatable[ig]<<8;
			ramps[2][i] = gammatable[ib]<<8;

#ifdef _WIN32
			//'In fact, any entry in the ramp must be within 32768 of the identity value'
			//so lets try to bound it so that it doesn't randomly fail.
			ir = (i<<8)|i;
			ramps[0][i] = bound(ir-32767, ramps[0][i], ir+32767);
			ramps[1][i] = bound(ir-32767, ramps[1][i], ir+32767);
			ramps[2][i] = bound(ir-32767, ramps[2][i], ir+32767);
#endif
		}

		if (qrenderer)
		{
			applied = rf->VID_ApplyGammaRamps (rampsize, allramps);
			if (!applied && r2d_canhwgamma)
				rf->VID_ApplyGammaRamps (0, NULL);
			r2d_canhwgamma = applied;
		}
	}

	RSpeedEnd(RSPEED_PALETTEFLASHES);
}

/*
=============
V_UpdatePalette
=============
*/

void V_ClearCShifts (void)
{
	int i, seat;

	for (seat = 0; seat < MAX_SPLITS; seat++)
		for (i = 0; i < NUM_CSHIFTS; i++)
			cl.playerview[seat].cshifts[i].percent = 0;
}

/*
==============================================================================

						VIEW RENDERING

==============================================================================
*/

float angledelta (float a)
{
	a = anglemod(a);
	if (a > 180)
		a -= 360;
	return a;
}

/*
==================
CalcGunAngle
==================
*/
void V_CalcGunPositionAngle (playerview_t *pv, float bob)
{
	float	yaw, pitch, move;
	static float oldyaw = 0;
	static float oldpitch = 0;
	vec3_t vw_angles;
	int i;
	float xyspeed;
	vec3_t xyvel;

	yaw = r_refdef.viewangles[YAW];
	pitch = -r_refdef.viewangles[PITCH];

	yaw = angledelta(yaw - r_refdef.viewangles[YAW]) * 0.4;
	if (yaw > 10)
		yaw = 10;
	if (yaw < -10)
		yaw = -10;
	pitch = angledelta(-pitch - r_refdef.viewangles[PITCH]) * 0.4;
	if (pitch > 10)
		pitch = 10;
	if (pitch < -10)
		pitch = -10;
	move = host_frametime*20;
	if (yaw > oldyaw)
	{
		if (oldyaw + move < yaw)
			yaw = oldyaw + move;
	}
	else
	{
		if (oldyaw - move > yaw)
			yaw = oldyaw - move;
	}

	if (pitch > oldpitch)
	{
		if (oldpitch + move < pitch)
			pitch = oldpitch + move;
	}
	else
	{
		if (oldpitch - move > pitch)
			pitch = oldpitch - move;
	}

	oldyaw = yaw;
	oldpitch = pitch;

	vw_angles[YAW] = r_refdef.viewangles[YAW] + yaw;
	vw_angles[PITCH] = r_refdef.viewangles[PITCH] + pitch;

	vw_angles[YAW] = r_refdef.viewangles[YAW];
	vw_angles[PITCH] = r_refdef.viewangles[PITCH];
	vw_angles[ROLL] = r_refdef.viewangles[ROLL];

	AngleVectors(vw_angles, pv->vw_axis[0], pv->vw_axis[1], pv->vw_axis[2]);
	VectorInverse(pv->vw_axis[1]);


	VectorCopy (r_refdef.vieworg, pv->vw_origin);
	for (i=0 ; i<3 ; i++)
	{
		pv->vw_origin[i] += pv->vw_axis[0][i]*bob*0.4;
//		pv->vw_origin[i] += pv->vw_axis[1][i]*sin(cl.time*5.5342452354235)*0.1;
//		pv->vw_origin[i] += pv->vw_axis[2][i]*bob*0.8;
	}

	VectorMA(pv->simvel, -DotProduct(pv->simvel, pv->gravitydir), pv->gravitydir, xyvel);
	xyspeed = VectorLength(xyvel);
	//FIXME: clamp

	//FIXME: cl_followmodel should lag the viewmodel's position relative to the view
	//FIXME: cl_leanmodel should lag the viewmodel's angles relative to the view

	if (cl_bobmodel.value)
	{	//bobmodel causes the viewmodel to bob relative to the view.
		float s = pv->bobtime * cl_bobmodel_speed.value, v;
		v = xyspeed * 0.01 * cl_bobmodel_side.value * /*cl_viewmodel_scale.value * */sin(s);
		VectorMA(pv->vw_origin, v, pv->vw_axis[1], pv->vw_origin);
		v = xyspeed * 0.01 * cl_bobmodel_up.value * /*cl_viewmodel_scale.value * */cos(2*s);
		VectorMA(pv->vw_origin, v, pv->vw_axis[2], pv->vw_origin);
	}


// fudge position around to keep amount of weapon visible
// roughly equal with different FOV
//FIXME: should use y fov, not viewsize.
	if (r_refdef.drawsbar && v_viewmodel_quake.ival)	//no sbar = no viewsize cvar.
	{
		if (scr_viewsize.value == 110)
			pv->vw_origin[2] += 1;
		else if (scr_viewsize.value == 100)
			pv->vw_origin[2] += 2;
		else if (scr_viewsize.value == 90)
			pv->vw_origin[2] += 1;
		else if (scr_viewsize.value == 80)
			pv->vw_origin[2] += 0.5;
	}
}

/*
==============
V_BoundOffsets
==============
*/
void V_BoundOffsets (int pnum)
{
// absolutely bound refresh reletive to entity clipping hull
// so the view can never be inside a solid wall

	if (r_refdef.vieworg[0] < cl.playerview[pnum].simorg[0] - 14)
		r_refdef.vieworg[0] = cl.playerview[pnum].simorg[0] - 14;
	else if (r_refdef.vieworg[0] > cl.playerview[pnum].simorg[0] + 14)
		r_refdef.vieworg[0] = cl.playerview[pnum].simorg[0] + 14;
	if (r_refdef.vieworg[1] < cl.playerview[pnum].simorg[1] - 14)
		r_refdef.vieworg[1] = cl.playerview[pnum].simorg[1] - 14;
	else if (r_refdef.vieworg[1] > cl.playerview[pnum].simorg[1] + 14)
		r_refdef.vieworg[1] = cl.playerview[pnum].simorg[1] + 14;
	if (r_refdef.vieworg[2] < cl.playerview[pnum].simorg[2] - 22)
		r_refdef.vieworg[2] = cl.playerview[pnum].simorg[2] - 22;
	else if (r_refdef.vieworg[2] > cl.playerview[pnum].simorg[2] + 30)
		r_refdef.vieworg[2] = cl.playerview[pnum].simorg[2] + 30;
}

/*
==============
V_AddIdle

Idle swaying
==============
*/
void V_AddIdle (playerview_t *pv)
{
	//defaults: for use if idlescale is locked and the var isn't.
	float yaw_cycle		= 2;
	float roll_cycle	= 0.5;
	float pitch_cycle	= 1;
	float yaw_level		= 0.3;
	float roll_level	= 0.1;
	float pitch_level	= 0.3;

	if (v_iyaw_cycle.flags & CVAR_SERVEROVERRIDE || !(v_idlescale.flags & CVAR_SERVEROVERRIDE))
		yaw_cycle = v_iyaw_cycle.value;
	if (v_iroll_cycle.flags & CVAR_SERVEROVERRIDE || !(v_idlescale.flags & CVAR_SERVEROVERRIDE))
		roll_cycle = v_iroll_cycle.value;
	if (v_ipitch_cycle.flags & CVAR_SERVEROVERRIDE || !(v_idlescale.flags & CVAR_SERVEROVERRIDE))
		pitch_cycle = v_ipitch_cycle.value;

	if (v_iyaw_level.flags & CVAR_SERVEROVERRIDE || !(v_idlescale.flags & CVAR_SERVEROVERRIDE))
		yaw_level = v_iyaw_level.value;
	if (v_iroll_level.flags & CVAR_SERVEROVERRIDE || !(v_idlescale.flags & CVAR_SERVEROVERRIDE))
		roll_level = v_iroll_level.value;
	if (v_ipitch_level.flags & CVAR_SERVEROVERRIDE || !(v_idlescale.flags & CVAR_SERVEROVERRIDE))
		pitch_level = v_ipitch_level.value;

	r_refdef.viewangles[ROLL] += v_idlescale.value * sin(cl.time*roll_cycle) * roll_level;
	r_refdef.viewangles[PITCH] += v_idlescale.value * sin(cl.time*pitch_cycle) * pitch_level;
	r_refdef.viewangles[YAW] += v_idlescale.value * sin(cl.time*yaw_cycle) * yaw_level;

//	pv->viewent.angles[ROLL] -= v_idlescale.value * sin(cl.time*roll_cycle) * roll_level;
//	pv->viewent.angles[PITCH] -= v_idlescale.value * sin(cl.time*pitch_cycle) * pitch_level;
//	pv->viewent.angles[YAW] -= v_idlescale.value * sin(cl.time*yaw_cycle) * yaw_level;
}


/*
==============
V_CalcViewRoll

Roll is induced by movement and damage
==============
*/
void V_CalcViewRoll (playerview_t *pv)
{
	float		side;
	float	adjspeed;

	side = V_CalcRoll (pv->simangles, pv->simvel);

	adjspeed = cl_rollalpha.value * bound(1, fabs(cl_rollangle.value), 45);
	if (side > pv->rollangle)
	{
		pv->rollangle += host_frametime * adjspeed;
		if (pv->rollangle > side)
			pv->rollangle = side;
	}
	else if (side < pv->rollangle)
	{
		pv->rollangle -= host_frametime * adjspeed;
		if (pv->rollangle < side)
			pv->rollangle = side;
	}
	r_refdef.viewangles[ROLL] += pv->rollangle;

	if (pv->v_dmg_time > 0)
	{
		r_refdef.viewangles[ROLL] += pv->v_dmg_time/v_kicktime.value*pv->v_dmg_roll;
		r_refdef.viewangles[PITCH] += pv->v_dmg_time/v_kicktime.value*pv->v_dmg_pitch;
		pv->v_dmg_time -= host_frametime;
	}

}


/*
==================
V_CalcIntermissionRefdef

==================
*/
void V_CalcIntermissionRefdef (playerview_t *pv)
{
	float		old;

	VectorCopy (pv->simorg, r_refdef.vieworg);
	VectorCopy (pv->simangles, r_refdef.viewangles);

	if (cl.intermissionmode == IM_H2FINALE)
		VectorMA(r_refdef.vieworg, -pv->viewheight, pv->gravitydir, r_refdef.vieworg);

// always idle in intermission
	old = v_idlescale.value;
	v_idlescale.value = 1;
	V_AddIdle (pv);
	v_idlescale.value = old;
}

float CalcFov (float fov_x, float width, float height)
{
	float	a;
	float	x;

	if (fov_x <= 0 || fov_x > 179)
		Sys_Error ("Bad fov: %f", fov_x);

	x = fov_x/360*M_PI;
	x = tan(x);
	x = width/x;

	a = atan (height/x);

	a = a*360/M_PI;

	return a;
}
static void V_CalcAFov(float afov, float *x, float *y, float w, float h)
{
	extern cvar_t scr_fov_mode;
	extern cvar_t r_stereo_separation;
	int mode = scr_fov_mode.ival;
#ifdef FTE_TARGET_WEB
	if (r_refdef.stereomethod == STEREO_WEBVR)
		w *= 0.5;
#endif
	if (r_refdef.stereomethod == STEREO_CROSSEYED && r_stereo_separation.value)
		w *= 0.5;

	afov = bound(0.001, afov, 170);

restart:
	switch(mode)
	{
	default:
	case 0:	//maj-
		if (h > w)
		{	//fov specified is interpreted as the horizontal fov at quake's original res: 640*432 (ie: with the sbar removed)...
		//	afov = CalcFov(afov, 640, 432);
			mode = 3;	//vertical 
		}
		else
			mode = 2;	//horizontal
		goto restart;
	case 1:	//min+
		if (h < w)
			mode = 3;	//vertical 
		else
			mode = 2;	//horizontal
		goto restart;
	case 2:	//horizontal
		*x = afov;
		*y = CalcFov(afov, w, h);

		if (*y > 170)
		{
			*y = 170;
			*x = CalcFov(170, h, w);
		}
		break;
	case 3:	//vertical
		*y = afov;
		*x = CalcFov(afov, h, w);

		if (*x > 170)
		{	//don't allow screwed fovs.
			*x = 170;
			*y = CalcFov(afov, w, h);
		}
		break;

	case 4:	//wide 4:3, to match vanilla more closely.
		if (w/4 < h/3)
		{	//don't bug out if they're running on a tall screen
			mode = 3;
			goto restart;
		}
		*y = tan(afov * M_PI / 360.0) * (3.0 / 4.0);
		*x = *y * w / h;
		*x = atan(*x) * (360.0 / M_PI);
		*y = atan(*y) * (360.0 / M_PI);
		break;
	}
}
void V_ApplyAFov(playerview_t *pv)
{
	//explicit fov overrides aproximate fov.
	//aproximate fov is our regular fov value. explicit is settable by gamecode for weird aspect ratios
	if (!r_refdef.fov_x || !r_refdef.fov_y)
	{
		float afov = r_refdef.afov;
		if (!afov)	//make sure its sensible.
		{
			afov = scr_fov.value;
#ifdef QUAKESTATS
			if (pv && pv->statsf[STAT_VIEWZOOM])	//match dp - viewzoom only happens when defaulted.
				afov *= pv->statsf[STAT_VIEWZOOM]/STAT_VIEWZOOM_SCALE;
#endif
		}

		V_CalcAFov(afov, &r_refdef.fov_x, &r_refdef.fov_y, (r_refdef.vrect.width*r_refdef.pxrect.width)/vid.fbvwidth, (r_refdef.vrect.height*r_refdef.pxrect.height)/vid.fbvheight);
	}

	if (!r_refdef.fovv_x || !r_refdef.fovv_y)
	{
		float afov = scr_fov_viewmodel.value;
		if (afov)
			V_CalcAFov(afov, &r_refdef.fovv_x, &r_refdef.fovv_y, (r_refdef.vrect.width*r_refdef.pxrect.width)/vid.fbvwidth, (r_refdef.vrect.height*r_refdef.pxrect.height)/vid.fbvheight);
		else
		{
			r_refdef.fovv_x = r_refdef.fov_x;
			r_refdef.fovv_y = r_refdef.fov_y;
		}
	}

	if (r_refdef.useperspective)
	{
		if (r_refdef.mindist < 1)
			r_refdef.mindist = 1;
		if (r_refdef.maxdist && r_refdef.maxdist < 100)
			r_refdef.maxdist = 0;	//small values should just use infinite.
	}
}
/*
=================
v_ApplyRefdef

called to apply any dirty refdef bits and recalculates pending data.
=================
*/
void V_ApplyRefdef (void)
{
#ifdef QUAKEHUD
	float           size;
	int             h;
	qboolean		full = false;
#endif

// force the status bar to redraw
	Sbar_Changed ();

//========================================

	if (r_refdef.playerview->gamerectknown != cls.framecount)
	{
		r_refdef.playerview->gamerectknown = cls.framecount;
		r_refdef.playerview->gamerect = r_refdef.grect;
	}

#ifndef QUAKEHUD
	r_refdef.vrect = r_refdef.grect;
#else


// intermission is always full screen
	if (cl.intermissionmode != IM_NONE || !r_refdef.drawsbar)
		size = 120;
	else
		size = scr_viewsize.value;

#ifdef Q2CLIENT
	if (cls.protocol == CP_QUAKE2)	//q2 never has a hud.
		sb_lines = 0;
	else
#endif
	     if (size >= 120)
		sb_lines = 0;           // no status bar at all
	else if (size >= 110)
		sb_lines = 24;          // no inventory
	else
		sb_lines = 24+16+8;

	if (scr_viewsize.value >= 100.0)
	{
		full = true;
		size = 100.0;
	}
	else
		size = scr_viewsize.value;

	if (cl.intermissionmode != IM_NONE || !r_refdef.drawsbar)
	{
		full = true;
		size = 100.0;
		sb_lines = 0;
	}
	size /= 100.0;

	if (cl_sbar.value!=1 && full)
		h = r_refdef.grect.height;
	else
		h = r_refdef.grect.height - sb_lines;
	if (h < 0)
		h = 0;

	r_refdef.vrect.width = r_refdef.grect.width * size;
	if (r_refdef.vrect.width < 96)
		r_refdef.vrect.width = 96;      // min for icons

	r_refdef.vrect.height = r_refdef.grect.height * size;
	if (cl_sbar.value==1 || !full)
	{
  		if (r_refdef.vrect.height > r_refdef.grect.height - sb_lines)
  			r_refdef.vrect.height = r_refdef.grect.height - sb_lines;
	}
	else if (r_refdef.vrect.height > r_refdef.grect.height)
		r_refdef.vrect.height = r_refdef.grect.height;
	if (r_refdef.vrect.height < 0)
		r_refdef.vrect.height = 0;

	r_refdef.vrect.x = (r_refdef.grect.width - r_refdef.vrect.width)/2;
	if (full)
		r_refdef.vrect.y = 0;
	else
		r_refdef.vrect.y = (h - r_refdef.vrect.height)/2;

	r_refdef.vrect.x += r_refdef.grect.x;
	r_refdef.vrect.y += r_refdef.grect.y;
#endif

	if (r_refdef.dirty & RDFD_FOV)
		V_ApplyAFov(r_refdef.playerview);

	r_refdef.dirty = 0;

	if (chase_active.ival && cls.allow_cheats)
		V_EditExternalModels(0, NULL, 0);
	if (v_depthsortentities.ival)
		V_DepthSortEntities(r_refdef.vieworg);
}

//if the view entities differ, removes all externalmodel flags except for adding it to the new entity, and removes weaponmodels.
//returns the number of view entities that were stripped out
int V_EditExternalModels(int newviewentity, entity_t *viewentities, int maxviewenties)
{
	int i;
	int viewents = 0;
	for (i = 0; i < cl_numvisedicts; )
	{
		if (cl_visedicts[i].keynum == newviewentity && newviewentity)
			cl_visedicts[i].flags |= RF_EXTERNALMODEL;
		else
			cl_visedicts[i].flags &= ~RF_EXTERNALMODEL;

		if (cl_visedicts[i].flags & RF_WEAPONMODEL)
		{
			if (viewents < maxviewenties)
				viewentities[viewents++] = cl_visedicts[i];
			memmove(&cl_visedicts[i], &cl_visedicts[i+1], sizeof(*cl_visedicts) * (cl_numvisedicts-(i+1)));
			cl_numvisedicts--;
		}
		else
			i++;
	}
	return viewents;
}

//this is for transparency effects, so we actually want the furthest first
//this is contrary for overdraw performance, but transparency doesn't work like that
//we use angles[0] to hold distance. the renderer shouldn't be using it anyway.
static int QDECL V_DepthSortTwoEntities(const void *p1,const void *p2)
{
	const entity_t *a = p1;
	const entity_t *b = p2;

	if (a->angles[0] < b->angles[0])
		return -1;
	if (a->angles[0] > b->angles[0])
		return 1;
	return 0;
}
void V_DepthSortEntities(float *vieworg)
{
	int i;
	vec3_t disp;
	for (i = 0; i < cl_numvisedicts; i++)
	{
		if (cl_visedicts[i].flags & RF_WEAPONMODEL)
		{	//weapon models have their own extra matrix thing going on. don't mess up because of it.
			cl_visedicts[i].angles[0] = 0;
			continue;
		}
		if (cl_visedicts[i].rtype == RT_MODEL && cl_visedicts[i].model && cl_visedicts[i].model->type == mod_brush)
		{
			VectorAdd(cl_visedicts[i].model->maxs, cl_visedicts[i].model->mins, disp);
			VectorMA(cl_visedicts[i].origin, 0.5, disp, disp);
			VectorSubtract(disp, vieworg, disp);
		}
		else
		{
			VectorSubtract(cl_visedicts[i].origin, vieworg, disp);
		}
		cl_visedicts[i].angles[0] = DotProduct(disp,disp);	//don't bother with sqrts
	}
	qsort(cl_visedicts, cl_numvisedicts, sizeof(cl_visedicts[0]), V_DepthSortTwoEntities);
}

/*
clears the refdef to defaults.
*/
void V_ClearRefdef(playerview_t *pv)
{
	r_refdef.playerview = pv;
	r_refdef.dirty = ~0;

	r_refdef.grect.x = 0;
	r_refdef.grect.y = 0;
	r_refdef.grect.width = vid.fbvwidth;//vid.width;
	r_refdef.grect.height = vid.fbvheight;//vid.height;

	r_refdef.afov = scr_fov.value;	//will have a better value applied if fov is bad. this allows setting.
	r_refdef.fov_x = 0;
	r_refdef.fov_y = 0;
	r_refdef.fovv_x = 0;
	r_refdef.fovv_y = 0;
	r_refdef.projectionoffset[0] = r_refdef.projectionoffset[1] = 0;

	r_refdef.drawsbar = (cl.intermissionmode == IM_NONE);
	r_refdef.flags = 0;

	r_refdef.skyroom_enabled = false;
	r_refdef.firstvisedict = 0;	//just in case.

	r_refdef.areabitsknown = false;

//	memset(r_refdef.postprocshader, 0, sizeof(r_refdef.postprocshader));
//	memset(r_refdef.postprocsize, 0, sizeof(r_refdef.postprocsize));
//	r_refdef.postproccube = 0;
}

/*
==================
V_CalcRefdef

==================
*/
void V_CalcRefdef (playerview_t *pv)
{
	float		bob;
	float		viewheight;

	r_refdef.playerview = pv;

	memset(&r_refdef.globalfog, 0, sizeof(r_refdef.globalfog));

	r_refdef.time = cl.servertime;
#ifdef Q2CLIENT
	if (cls.protocol == CP_QUAKE2)
	{
		VectorCopy (pv->simorg, r_refdef.vieworg);
		VectorCopy (pv->simangles, r_refdef.viewangles);
		return;
	}
#endif

	if (v_viewheight.value < -7)
		bob=-7;
	else if (v_viewheight.value > 4)
		bob=4;
	else if (v_viewheight.value)
		bob=v_viewheight.value;
	else
		bob = V_CalcBob (pv, false);

// refresh position from simulated origin
	VectorCopy (pv->simorg, r_refdef.vieworg);

	r_refdef.useperspective = true;
	r_refdef.mindist = bound(0.1, gl_mindist.value, 4);
	r_refdef.maxdist = gl_maxdist.value;

// never let it sit exactly on a node line, because a water plane can
// dissapear when viewed with the eye exactly on it.
// the server protocol only specifies to 1/8 pixel, so add 1/16 in each axis
	r_refdef.vieworg[0] += 1.0/16;
	r_refdef.vieworg[1] += 1.0/16;
	r_refdef.vieworg[2] += 1.0/16;

	VectorCopy (pv->simangles, r_refdef.viewangles);

	V_CalcViewRoll (pv);
	V_AddIdle (pv);

	viewheight = pv->viewheight;
	if (viewheight == DEFAULT_VIEWHEIGHT && cls.protocol == CP_QUAKEWORLD && !(cls.z_ext & Z_EXT_VIEWHEIGHT))
	{
		if (view_message && view_message->flags & PF_GIB)
			viewheight = 8;	// gib view height
		else if (view_message && view_message->flags & PF_DEAD)
			viewheight = 16;	// corpse view height
	}

#ifdef QUAKESTATS
	if (pv->stats[STAT_HEALTH] < 0 && (!pv->spectator || pv->cam_state == CAM_EYECAM) && v_deathtilt.value)		// PF_GIB will also set PF_DEAD
	{
		if (!pv->spectator || cl_chasecam.ival)
			r_refdef.viewangles[ROLL] = 80*v_deathtilt.value;	// dead view angle
	}
	else
#endif
	{
		// v_viewheight only affects the view if the player is alive
		viewheight += bob;
	}
	viewheight += pv->crouch;

	VectorMA(r_refdef.vieworg, -viewheight, pv->gravitydir, r_refdef.vieworg);

// set up gun position
	V_CalcGunPositionAngle (pv, bob);

// set up the refresh position
	if (v_gunkick.value)
	{
		r_refdef.viewangles[PITCH] += pv->punchangle_cl*v_gunkick.value;
		VectorMA(r_refdef.viewangles, v_gunkick.value, pv->punchangle_sv, r_refdef.viewangles);
		VectorMA(r_refdef.vieworg, v_gunkick.value, pv->punchorigin, r_refdef.vieworg);
	}

	if (v_skyroom_set)
	{
		r_refdef.skyroom_enabled = true;
		VectorMA(v_skyroom_origin, v_skyroom_origin[3], r_refdef.vieworg, r_refdef.skyroom_pos);
		Vector4Copy(v_skyroom_orientation, r_refdef.skyroom_spin);
		r_refdef.skyroom_spin[3] *= cl.time;
	}

	if (chase_active.ival && cls.allow_cheats)	//cheat restriction might be lifted some time when any wallhacks are solved.
	{
		vec3_t axis[3];
		vec3_t camorg, camdir;
		trace_t tr;
		float len;
		//r_refdef.viewangles[0] += chase_pitch.value;
		//r_refdef.viewangles[1] += chase_yaw.value;
		//r_refdef.viewangles[2] += chase_roll.value;
		if (chase_active.ival >= 2)
			r_refdef.viewangles[0] = 90;
		if (chase_active.ival >= 3)
			r_refdef.viewangles[1] = 0;
		AngleVectors(r_refdef.viewangles, axis[0], axis[1], axis[2]);
		VectorScale(axis[0], -chase_back.value, camdir);
		if (pv->pmovetype == PM_6DOF)
			VectorMA(camdir, chase_up.value, axis[2], camdir);
		else
			VectorMA(camdir, -chase_up.value, pv->gravitydir, camdir);
		len = VectorLength(camdir);
		VectorMA(r_refdef.vieworg, (len+128)/len, camdir, camorg);	//push it 128qu further
		if (cl.worldmodel && cl.worldmodel->funcs.NativeTrace)
		{
			cl.worldmodel->funcs.NativeTrace(cl.worldmodel, 0, 0, NULL, r_refdef.vieworg, camorg, vec3_origin, vec3_origin, true, MASK_WORLDSOLID, &tr);
			if (!tr.startsolid)
			{
				if (tr.fraction < 1)
				{
					//we found a plane, bisect it weirdly to push 4qu infront
					float d1,d2, frac;
					VectorMA(r_refdef.vieworg, 1, camdir, camorg);
					d1 = DotProduct(r_refdef.vieworg, tr.plane.normal) - (tr.plane.dist+4);
					d2 = DotProduct(camorg, tr.plane.normal) - (tr.plane.dist+4);
					frac = d1 / (d1-d2);
					frac = bound(0, frac, 1);
					VectorMA(r_refdef.vieworg, frac, camdir, r_refdef.vieworg);
				}
				else
					VectorMA(r_refdef.vieworg, 1, camdir, r_refdef.vieworg);
			}
		}
	}
}

/*
=============
DropPunchAngle
=============
*/
void DropPunchAngle (playerview_t *pv)
{
	if (pv->punchangle_cl < 0)
	{
		pv->punchangle_cl += 10*host_frametime;
		if (pv->punchangle_cl > 0)
			pv->punchangle_cl = 0;
	}
	else
	{
		pv->punchangle_cl -= 10*host_frametime;
		if (pv->punchangle_cl < 0)
			pv->punchangle_cl = 0;
	}
}

/*
==================
V_RenderView

The player's clipping box goes from (-16 -16 -24) to (16 16 32) from
the entity origin, so any view position inside that will be valid
==================
*/
qboolean r_secondaryview;
#ifdef SIDEVIEWS

#ifdef PEXT_VIEW2
entity_t *CL_EntityNum(int num)
{
	int i;
	for (i=0 ; i<cl_numvisedicts ; i++)
	{
		if (cl_visedicts[i].keynum == num)
			return &cl_visedicts[i];
	}
	return NULL;
}
#endif
#endif

static qboolean SCR_VRectForPlayer(vrect_t *vrect, int pnum, unsigned maxseats)
{
	int w = 1, h = 1;
	while (w*h < maxseats)
	{
		//spread them out so they're all fair.
		//panorama always stacks vertically, using the full width, because we can.
		if (vid.fbvwidth/(w*16.0) > vid.fbvheight/(h*10.0) && r_projection.ival != PROJ_PANORAMA)
			w++;
		else
			h++;
	}
	vrect->width = vid.fbvwidth/(float)w;
	vrect->height = vid.fbvheight/(float)h;
	vrect->x = (pnum%w) * vrect->width;
	vrect->y = (pnum/w) * vrect->height;

	return pnum < w*h;
}

void Draw_ExpandedString(struct font_s *font, float x, float y, conchar_t *str);

#ifdef QUAKESTATS
static void SCR_DrawAutoID(vec3_t org, player_info_t *pl, qboolean isteam)
{
	conchar_t buffer[256];
	int len;
	vec3_t center;
	vec3_t tagcenter;
	float alpha;
	qboolean obscured;
	int x, y;
	int r;
	float barwidth;
	qboolean haveinfo;
	unsigned int textflags;
	int h;
	char *pname;

	int health;
	int armour;
	unsigned int items;
	static vec4_t healthcolours[] =
	{
		{0.7, 0.45, 0.45, 1},
		{0.3, 0, 0, 1},
		{1, 0, 0, 1},
		{1, 0.4, 0, 1},
		{1, 1, 1, 1}
	};
	static vec4_t armourcolours[] =
	{
		{25, 170, 0, 0.2},
		{25, 170, 0, 1},
		{225, 220, 0, 0.2},
		{225, 220, 0, 1},
		{255, 0, 0, 0.2},
		{255, 0, 0, 1}
	};

	extern cvar_t tp_name_sg,tp_name_ssg,tp_name_ng,tp_name_sng,tp_name_gl,tp_name_rl,tp_name_lg;
	static cvar_t *wbitnames[] =
	{
		&tp_name_sg,
		&tp_name_ssg,
		&tp_name_ng,
		&tp_name_sng,
		&tp_name_gl,
		&tp_name_rl,
		&tp_name_lg
	};
	struct font_s *font = font_default;

	VectorCopy(org, tagcenter);
	tagcenter[2] += 32;
	if (!Matrix4x4_CM_Project(tagcenter, center, r_refdef.viewangles, r_refdef.vieworg, r_refdef.fov_x, r_refdef.fov_y))
		return;	//behind the camera
	if (center[0] < 0 || center[0] > 1 || center[1] < 0 || center[1] > 1)
		return;	//off the side of the screen

	obscured = !TP_IsPlayerVisible(org);
	
	if (obscured && !isteam)
		return;	//only teammembers are drawn when obscured
	if (isteam)
		textflags = scr_autoid_teamcolour.ival << CON_FGSHIFT;
	else
		textflags = scr_autoid_enemycolour.ival << CON_FGSHIFT;
	if (obscured)
	{
		if (scr_autoid_team.ival == 2)
			return;
		textflags |= CON_HALFALPHA;
		alpha = 0.25;
	}
	else
		alpha = 1;

	x = center[0]*r_refdef.vrect.width+r_refdef.vrect.x;
	y = (1-center[1])*r_refdef.vrect.height+r_refdef.vrect.y;

	if (cls.demoplayback == DPB_MVD || cls.demoplayback == DPB_EZTV)
	{
		health = pl->statsf[STAT_HEALTH];
		armour = pl->statsf[STAT_ARMOR];
		items = pl->stats[STAT_ITEMS];
		pname = pl->name;
		haveinfo = true;
	}
	else
	{
		health = pl->tinfo.health;
		armour = pl->tinfo.armour;
		items = pl->tinfo.items;
		pname = ((*pl->tinfo.nick)?pl->tinfo.nick:(cl.teamfortress?"-":pl->name));
		haveinfo = pl->tinfo.time > cl.time;
	}

	if (strcmp(pname, "-"))	//a tinfo nick of - hides names. this can be used for TF to hide names for spies.
	{
		y -= 8;
		len = COM_ParseFunString(textflags, pname, buffer, sizeof(buffer), false) - buffer;
		Draw_ExpandedString(font, x - len*4, y, buffer);
	}

	if (!haveinfo)
		return;	//we don't trust the info that we have, so no ids.

	h = 0;

	barwidth = 32;

	//display health bar
	if (scr_autoid_health.ival)
	{
		float frac = health / 100.0;
		if (frac < 0)
			frac = 0;
		r = frac;
		frac -= r;
		if (r > countof(healthcolours)-2)
		{
			r = countof(healthcolours)-2;
			frac = 1;
		}
		h += 8;
		y -= 8;
		R2D_ImageColours(healthcolours[r][0], healthcolours[r][1], healthcolours[r][2], healthcolours[r][3]*alpha);
		R2D_FillBlock(x - barwidth*0.5 + barwidth * frac, y, barwidth * (1-frac), 4);
		r++;
		R2D_ImageColours(healthcolours[r][0], healthcolours[r][1], healthcolours[r][2], healthcolours[r][3]*alpha);
		R2D_FillBlock(x - barwidth*0.5, y, barwidth * frac, 4);
	}

	if (health <= 0)	//armour+weapons are not relevant when dead
	{
		R2D_ImageColours(1, 1, 1, 1);
		return;
	}

	if (scr_autoid_armour.ival)
	{
		//display armour bar above that
		if (items & IT_ARMOR3)
			r = 4, health = 200;
		else if (items & IT_ARMOR2)
			r = 2, health = 150;
		else if (items & IT_ARMOR1)
			r = 0, health = 100;
		else r = -1;
		if (r >= 0)
		{
			h += 5;
			y -= 5;
			armour = bound(0, armour, health);
			barwidth = 32;
			R2D_ImageColours(armourcolours[r][0], armourcolours[r][1], armourcolours[r][2], armourcolours[r][3]*alpha);
			R2D_FillBlock(x - barwidth*0.5 + barwidth * armour/(float)health, y, barwidth * (health-armour)/(float)health, 4);
			r++;
			R2D_ImageColours(armourcolours[r][0], armourcolours[r][1], armourcolours[r][2], armourcolours[r][3]*alpha);
			R2D_FillBlock(x - barwidth*0.5, y, barwidth * armour/(float)health, 4);
		}
	}

	R2D_ImageColours(1, 1, 1, 1);
	if (scr_autoid_weapon.ival)
	{
		for (r = countof(wbitnames)-1; r>=0; r--)
			if (items & (1<<r))
				break;
		if (r >= 0 && (scr_autoid_weapon_mask.ival&(1<<1)))
		{
			if (scr_autoid_weapon.ival==1)
			{
				extern apic_t *sb_weapons[7][8];
				float w = 0;
				if (r < 8 && sb_weapons[0][r])
				{

					if (h < 16)
					{
						y-= 16-h;
						h = 16;
					}
					y += (h-16)/2;

					if (sb_weapons[0][r]->width)
						w = sb_weapons[0][r]->width;
					else
						w = sb_weapons[0][r]->atlas->width;
					R2D_ImageAtlas(x-barwidth*.5-24-4, y, 24, 16, 0, 0, 24/w, 1, sb_weapons[0][r]);
					return;
				}
			}

			if (h < 8)
			{
				y-= 8-h;
				h = 8;
			}
			y += (h-8)/2;

			len = COM_ParseFunString(textflags, wbitnames[r]->string, buffer, sizeof(buffer), false) - buffer;
			if (textflags & CON_HALFALPHA)
			{
				for (r = 0; r < len; r++)
					if (!(buffer[r] & CON_RICHFORECOLOUR))
						buffer[r] |= CON_HALFALPHA;
			}
			if (len && (buffer[0] & CON_CHARMASK) == '{' && (buffer[len-1] & CON_CHARMASK) == '}')
			{	//these are often surrounded by {} to make them white in chat messages, and recoloured.
				buffer[len-1] = 0;
				len = 1;
			}
			else
				len = 0;
			Draw_ExpandedString(font, x + barwidth*0.5 + 4, y, buffer+len);
		}
	}
}
#endif

#include "pr_common.h"
msurface_t *Mod_GetSurfaceNearPoint(model_t *model, vec3_t point);
char *Shader_GetShaderBody(shader_t *s, char *fname, size_t fnamesize);
extern vec3_t nametagorg[MAX_CLIENTS];
extern qboolean nametagseen[MAX_CLIENTS];
extern cvar_t r_showshaders, r_showfields, r_projection;
void R_DrawNameTags(void)
{
	int i;
#ifdef QUAKESTATS
	lerpents_t *le;
	qboolean isteam;
	char *ourteam;
	int ourcolour;
#endif

	if (r_projection.ival)	//we don't actually know how to transform the points unless the projection is coded in advance. and it isn't.
		return;

#if defined(CSQC_DAT) || !defined(CLIENTONLY)
	if (r_showshaders.ival && cl.worldmodel && cl.worldmodel->loadstate == MLS_LOADED)
	{
		trace_t trace;
		char *str;
		vec3_t targ;
		vec2_t scale = {12,12};
		msurface_t *surf;
		VectorMA(r_refdef.vieworg, 8192, vpn, targ);
		//FIXME: should probably do a general trace, to hit (networked) submodels too
		cl.worldmodel->funcs.NativeTrace(cl.worldmodel, 0, PE_FRAMESTATE, NULL, r_refdef.vieworg, targ, vec3_origin, vec3_origin, false, ~0, &trace);

		surf = Mod_GetSurfaceNearPoint(cl.worldmodel, trace.endpos);
		if (surf)
		{
			shader_t *shader = surf->texinfo->texture->shader;
			char fname[MAX_QPATH];
			char *body = shader?Shader_GetShaderBody(shader, fname, countof(fname)):NULL;
			if (body)
			{
//				Q_snprintfz(fname, sizeof(fname), "<default shader>");
				str = va("^2%s^7\n%s%s\n{%s\n", fname, ruleset_allow_shaders.ival?"":CON_ERROR"WARNING: ruleset_allow_shaders disables external shaders"CON_DEFAULT"\n", surf->texinfo->texture->name, body);
				Z_Free(body);
			}
			else
				str = va("hit '%s'", surf->texinfo->texture->name);
		}
		else
			str = "hit nothing";
		R_DrawTextField(r_refdef.vrect.x + r_refdef.vrect.width/4, r_refdef.vrect.y, r_refdef.vrect.width/2, r_refdef.vrect.height, str, CON_WHITEMASK, CPRINT_LALIGN, font_console, scale);
	}
	else
#endif

	if (r_showfields.ival)
	{
		world_t *w = NULL;
		wedict_t *e;
		vec3_t org;
		vec3_t screenspace;
		vec3_t diff;
		if (!cls.allow_cheats)
		{
			vec2_t scale = {8,8};
			float x = 0.5*r_refdef.vrect.width+r_refdef.vrect.x;
			float y = (1-0.5)*r_refdef.vrect.height+r_refdef.vrect.y;
			R_DrawTextField(x, y, vid.width - x, vid.height - y, "r_showfields requires sv_cheats 1", CON_WHITEMASK, CPRINT_TALIGN|CPRINT_LALIGN, font_console, scale);
			w = NULL;
		}
		else if ((r_showfields.ival & 3) == 1)
		{
#ifndef CLIENTONLY
			w = &sv.world;
#endif
		}
		else if ((r_showfields.ival & 3) == 2)
		{
#ifdef CSQC_DAT
			extern world_t csqc_world;
			w = &csqc_world;
#endif
		}
		else if ((r_showfields.ival & 3) == 3)
		{
			inframe_t *frame;
			packet_entities_t *pak;
			entity_state_t *state;
			model_t *mod;

			frame = &cl.inframes[cl.parsecount & UPDATE_MASK];
			pak = &frame->packet_entities;

			for (i=0 ; i<pak->num_entities ; i++)
			{
				state = &pak->entities[i];

				mod = cl.model_precache[state->modelindex];
				if (mod && mod->loadstate == MLS_LOADED)
					VectorInterpolate(mod->mins, 0.5, mod->maxs, org);
				else
					VectorClear(org);
				VectorAdd(org, state->origin, org);
				if (Matrix4x4_CM_Project(org, screenspace, r_refdef.viewangles, r_refdef.vieworg, r_refdef.fov_x, r_refdef.fov_y))
				{
					char *entstr;
					int x, y;

					entstr = va("%i", state->number);
					if (entstr)
					{
						vec2_t scale = {8,8};
						x = screenspace[0]*r_refdef.vrect.width+r_refdef.vrect.x;
						y = (1-screenspace[1])*r_refdef.vrect.height+r_refdef.vrect.y;
						R_DrawTextField(x, y, vid.width - x, vid.height - y, entstr, CON_WHITEMASK, CPRINT_TALIGN|CPRINT_LALIGN, font_default, scale);
					}
				}
			}
		}
#ifdef Q2SERVER //not enough fields for it to really be worth it.
		if (w == &sv.world && svs.gametype == GT_QUAKE2 && ge)
		{
			struct q2edict_s	*e;

			int best = 0;
			float bestscore = 0, score = 0;
			for (i = 1; i < ge->num_edicts; i++)
			{
				e = &ge->edicts[i];
				if (!e->inuse)
					continue;
				VectorInterpolate(e->mins, 0.5, e->maxs, org);
				VectorAdd(org, e->s.origin, org);
				VectorSubtract(org, r_refdef.vieworg, diff);
				if (DotProduct(diff, diff) < 16*16)
					continue;	//ignore stuff too close(like the player themselves)
				VectorNormalize(diff);
				score = DotProduct(diff, vpn);// r_refdef.viewaxis[0]);
				if (score > bestscore)
				{
					int hitent;
					vec3_t imp;
					if (CL_TraceLine(r_refdef.vieworg, org, imp, NULL, &hitent)>=1 || hitent == i)
					{
						best = i;
						bestscore = score;
					}
				}
			}
			if (best)
			{
				e = &ge->edicts[best];
				VectorInterpolate(e->mins, 0.5, e->maxs, org);
				VectorAdd(org, e->s.origin, org);
				if (Matrix4x4_CM_Project(org, screenspace, r_refdef.viewangles, r_refdef.vieworg, r_refdef.fov_x, r_refdef.fov_y))
				{
					char *entstr = va("entity %i {\n\tmodelindex %i\n\torigin \"%f %f %f\"\n}\n", e->s.number, e->s.modelindex, e->s.origin[0], e->s.origin[1], e->s.origin[2]);
					if (entstr)
					{
						vec2_t scale = {8,8};
						int x = screenspace[0]*r_refdef.vrect.width+r_refdef.vrect.x;
						int y = (1-screenspace[1])*r_refdef.vrect.height+r_refdef.vrect.y;
						R_DrawTextField(x, y, vid.width - x, vid.height - y, entstr, CON_WHITEMASK, CPRINT_TALIGN|CPRINT_LALIGN, font_console, scale);
					}
				}
			}
		}
		else
#endif
		if (w && w->progs)
		{
			int best = 0;
			float bestscore = 0, score = 0;
			for (i = 1; i < w->num_edicts; i++)
			{
				e = WEDICT_NUM_PB(w->progs, i);
				if (ED_ISFREE(e))
					continue;
				VectorInterpolate(e->v->mins, 0.5, e->v->maxs, org);
				VectorAdd(org, e->v->origin, org);
				VectorSubtract(org, r_refdef.vieworg, diff);
				if (DotProduct(diff, diff) < 16*16)
					continue;	//ignore stuff too close(like the player themselves)
				VectorNormalize(diff);
				score = DotProduct(diff, vpn);// r_refdef.viewaxis[0]);
				if (score > bestscore)
				{
					int hitent;
					vec3_t imp;
					if (CL_TraceLine(r_refdef.vieworg, org, imp, NULL, &hitent)>=1 || hitent == i)
					{
						best = i;
						bestscore = score;
					}
				}
			}
			if (best)
			{
				e = WEDICT_NUM_PB(w->progs, best);
				VectorInterpolate(e->v->mins, 0.5, e->v->maxs, org);
				VectorAdd(org, e->v->origin, org);
				if (Matrix4x4_CM_Project(org, screenspace, r_refdef.viewangles, r_refdef.vieworg, r_refdef.fov_x, r_refdef.fov_y))
				{
					char asciibuffer[8192];
					char *entstr;
					size_t buflen;
					int x, y;

					sprintf(asciibuffer, "entity %i ", e->entnum);
					buflen = strlen(asciibuffer);
					entstr = w->progs->saveent(w->progs, asciibuffer, &buflen, sizeof(asciibuffer), (edict_t*)e);	//will save just one entities vars
					if (entstr)
					{
						vec2_t scale = {8,8};
						x = screenspace[0]*r_refdef.vrect.width+r_refdef.vrect.x;
						y = (1-screenspace[1])*r_refdef.vrect.height+r_refdef.vrect.y;
						R_DrawTextField(x, y, vid.width - x, vid.height - y, entstr, CON_WHITEMASK, CPRINT_TALIGN|CPRINT_LALIGN, font_console, scale);
					}
				}
			}
		}
	}

#ifdef QUAKESTATS
	if (cls.protocol == CP_QUAKE2)
		return;	//FIXME: q2 has its own ent logic, which messes stuff up here.

	if (((!r_refdef.playerview->spectator && !cls.demoplayback) || !scr_autoid.ival) && (!cl.teamplay || !scr_autoid_team.ival))
		return;
	if (cls.state != ca_active || !cl.validsequence || cl.intermissionmode != IM_NONE)
		return;

	if (r_refdef.playerview->cam_state != CAM_FREECAM && r_refdef.playerview->cam_spec_track >= 0)
	{
		ourteam = cl.players[r_refdef.playerview->cam_spec_track].team;
		ourcolour = cl.players[r_refdef.playerview->cam_spec_track].rbottomcolor;
	}
	else
	{
		ourteam = cl.players[r_refdef.playerview->playernum].team;
		ourcolour = cl.players[r_refdef.playerview->playernum].rbottomcolor;
	}

	pmove.skipent = r_refdef.playerview->playernum+1;
	for (i = 0; i < cl.allocated_client_slots; i++)
	{
		if (!*cl.players[i].name)
			continue;	//slot is empty.

		if (!nametagseen[i])
		{
			if (i+1 < cl.maxlerpents && cl.lerpentssequence && cl.lerpents[i+1].sequence == cl.lerpentssequence)
			{
				le = &cl.lerpents[i+1];
				VectorCopy(le->origin, nametagorg[i]);
			}
			else if (cl.lerpplayers[i].sequence == cl.lerpentssequence)
			{
				le = &cl.lerpplayers[i];
				VectorCopy(le->origin, nametagorg[i]);
			}
			else if (cl.players[i].tinfo.time > cl.time)
				VectorCopy(cl.players[i].tinfo.org, nametagorg[i]);
			else
				continue;
		}

		//while cl.lerpplayers exists, it tends to not be configured properly.
		if (i == r_refdef.playerview->playernum)
			continue;	// Don't draw tag for the local player
		if (cl.players[i].spectator)
			continue;
		if (i == Cam_TrackNum(r_refdef.playerview))	//no tag for the player that you're tracking, either.
			continue;

		if (!cl.teamplay || !scr_autoid_team.ival)
			isteam = false;
		else if ((cl.teamfortress && !r_refdef.playerview->spectator) || cls.protocol == CP_NETQUAKE)	//teamfortress should go by their colours instead, because spies. primarily this is to allow enemy spies to appear through walls as well as your own team (note that the qc will also need tinfo stuff for tf, to avoid issues with just checking player names).
			isteam = cl.players[i].rbottomcolor == ourcolour;
		else
			isteam = !strcmp(cl.players[i].team, ourteam);

		if (!isteam)
			if ((!r_refdef.playerview->spectator && !cls.demoplayback) || !scr_autoid.ival)
				continue;	//only show our team when playing, too cheaty otherwise.

		SCR_DrawAutoID(nametagorg[i], &cl.players[i], isteam);
	}
#endif
}

void R2D_PolyBlend (void);
void V_RenderPlayerViews(playerview_t *pv)
{
	int oldnuments;
	int oldstris;
#ifdef SIDEVIEWS
	int viewnum;
#endif
//	cl.simangles[plnum][ROLL] = 0;	// FIXME @@@

	DropPunchAngle (pv);

	Cam_SelfTrack(pv);

	oldnuments = cl_numvisedicts;
	oldstris = cl_numstris;
	CL_LinkViewModel ();

	if (cl.intermissionmode != IM_NONE)
	{	// intermission / finale rendering
		V_CalcIntermissionRefdef (pv);
	}
	else
	{
		V_DriftPitch (pv);
		V_CalcRefdef (pv);
	}
	V_ApplyRefdef();

	R_RenderView ();
	R2D_PolyBlend ();
	R_DrawNameTags();
#ifdef RTLIGHTS
	R_EditLights_DrawInfo();
#endif

	if(cl.intermissionmode == IM_NONE)
		R2D_DrawCrosshair();

	cl_numvisedicts = oldnuments;
	cl_numstris = oldstris;

	r_secondaryview = true;

#ifdef SIDEVIEWS
/*	//adjust main view height to strip off the rearviews at the top
	if (vsecwidth >= 1)
	{
		r_refdef.vrect.y -= vsecheight;
		r_refdef.vrect.height += vsecheight;
	}
*/
	for (viewnum = 0; viewnum < SIDEVIEWS; viewnum++)
	if (sideview[viewnum].scalex.value>0&&sideview[viewnum].scaley.value>0
		&& ((sideview[viewnum].enabled.value && sideview[viewnum].enabled.value != 2) 	//rearview if v2_enabled = 1 and not 2
		|| (sideview[viewnum].enabled.value && pv->stats[STAT_VIEW2]&&viewnum==0)))			//v2 enabled if v2_enabled is non-zero
	{
		vrect_t oldrect;
		vec3_t oldangles;
		vec3_t oldposition;
//		int oldviewent;
		struct entity_s *e;
		float ofx;
		float ofy;

		if (sideview[viewnum].x.value < 0)
			sideview[viewnum].x.value = 0;
		if (sideview[viewnum].y.value < 0)
			sideview[viewnum].y.value = 0;

		if (sideview[viewnum].scalex.value+sideview[viewnum].x.value > 1)
			continue;
		if (sideview[viewnum].scaley.value+sideview[viewnum].y.value > 1)
			continue;

		oldrect = r_refdef.vrect;
		memcpy(oldangles, r_refdef.viewangles, sizeof(vec3_t));
		memcpy(oldposition, r_refdef.vieworg, sizeof(vec3_t));
		ofx = r_refdef.fov_x;
		ofy = r_refdef.fov_y;

		r_refdef.vrect.x += r_refdef.vrect.width*sideview[viewnum].x.value;
		r_refdef.vrect.y += r_refdef.vrect.height*sideview[viewnum].y.value;
		r_refdef.vrect.width *= sideview[viewnum].scalex.value;
		r_refdef.vrect.height *= sideview[viewnum].scaley.value;

		r_refdef.fov_x = 0;
		r_refdef.fov_y = 0;
		V_ApplyAFov(NULL);
#ifdef PEXT_VIEW2
			//secondary view entity.
		e=NULL;
		if (viewnum==0&&pv->stats[STAT_VIEW2])
		{
			e = CL_EntityNum (pv->stats[STAT_VIEW2]);
		}
		if (e)
		{
			memcpy(r_refdef.viewangles, e->angles, sizeof(vec3_t));
			memcpy(r_refdef.vieworg, e->origin, sizeof(vec3_t));
//			cl.viewentity = cl.viewentity2;

			r_refdef.vieworg[0]=r_refdef.vieworg[0];//*s+(1-s)*e->lerporigin[0];
			r_refdef.vieworg[1]=r_refdef.vieworg[1];//*s+(1-s)*e->lerporigin[1];
			r_refdef.vieworg[2]=r_refdef.vieworg[2];//*s+(1-s)*e->lerporigin[2];

			r_refdef.viewangles[0]=e->angles[0];//*s+(1-s)*e->msg_angles[1][0];
			r_refdef.viewangles[1]=e->angles[1];//*s+(1-s)*e->msg_angles[1][1];
			r_refdef.viewangles[2]=e->angles[2];//*s+(1-s)*e->msg_angles[1][2];

			if (e->keynum >= 1 && e->keynum <= cl.allocated_client_slots)
			{
				r_refdef.viewangles[PITCH] *= 3;
				r_refdef.vieworg[2] += pv->statsf[STAT_VIEWHEIGHT];
			}


			V_EditExternalModels(e->keynum, NULL, 0);

			R_RenderView ();
//				r_framecount = old_framecount;
		}
		else
#endif
		{
			//rotate the view, keeping pitch and roll.
			r_refdef.viewangles[YAW] += sideview[viewnum].yaw.value;
			r_refdef.viewangles[ROLL] += sin(sideview[viewnum].yaw.value / 180 * 3.14) * r_refdef.viewangles[PITCH];
			r_refdef.viewangles[PITCH] *= -cos((sideview[viewnum].yaw.value / 180 * 3.14)+3.14);
			if (sideview[viewnum].enabled.value!=2)
			{
				V_EditExternalModels(pv->viewentity, NULL, 0);
				R_RenderView ();
			}
		}

		r_refdef.vrect = oldrect;
		memcpy(r_refdef.viewangles, oldangles, sizeof(vec3_t));
		memcpy(r_refdef.vieworg, oldposition, sizeof(vec3_t));
		r_refdef.fov_x = ofx;
		r_refdef.fov_y = ofy;
	}
#endif
	r_refdef.externalview = false;
}

void V_RenderView (qboolean no2d)
{
	int seatnum;
	int maxseats = cl.splitclients;

	Surf_LessenStains();

	if (cls.state != ca_active)
		return;

	if (cl.intermissionmode != IM_NONE)
		maxseats = 1;

	R_PushDlights ();

	r_secondaryview = 0;
	for (seatnum = 0; seatnum < cl.splitclients && seatnum < maxseats; seatnum++)
	{
		V_ClearRefdef(&cl.playerview[seatnum]);
		if (no2d)
			r_refdef.drawcrosshair = r_refdef.drawsbar = 0;
		if (seatnum)
		{
			//should be enough to just hack a few things.
			V_EditExternalModels(r_refdef.playerview->viewentity, NULL, 0);
		}
		else
		{
			if (r_worldentity.model && r_worldentity.model->loadstate == MLS_LOADED)
			{
				RSpeedMark();

				CL_AllowIndependantSendCmd(false);

				CL_SetSolidEntities ();
				CL_TransitionEntities();
				CL_PredictMove ();

				// build a refresh entity list
				CL_EmitEntities ();

				CL_AllowIndependantSendCmd(true);

				RSpeedEnd(RSPEED_LINKENTITIES);
			}
		}
		if (R2D_Flush)
			R2D_Flush();

		SCR_VRectForPlayer(&r_refdef.grect, seatnum, maxseats);
		V_RenderPlayerViews(r_refdef.playerview);

#ifdef PLUGINS
		Plug_SBar (r_refdef.playerview);
#else
		if (Sbar_ShouldDraw(r_refdef.playerview))
		{
			SCR_TileClear (sb_lines);
			Sbar_Draw (r_refdef.playerview);
			Sbar_DrawScoreboard (r_refdef.playerview);
		}
		else
			SCR_TileClear (0);
#endif
	}
	if (seatnum > 1)
	{
		int extra = 0;
		for (; ; seatnum++, extra++)
		{
			if (!SCR_VRectForPlayer(&r_refdef.grect, seatnum, maxseats))
				break;

			switch(extra)
			{
#ifdef QUAKEHUD
			case 0:	//show a mini-console.
				{
					console_t *con = Con_GetMain();
					extern cvar_t gl_conback;
					shader_t *conback;
					if (*gl_conback.string && (conback = R_RegisterPic(gl_conback.string, NULL)) && R_GetShaderSizes(conback, NULL, NULL, true) > 0)
						R2D_Image(r_refdef.grect.x, r_refdef.grect.y, r_refdef.grect.width, r_refdef.grect.height, 0, 0, 1, 1, conback);
					else if ((conback = R_RegisterPic("gfx/conback.lmp", NULL)) && R_GetShaderSizes(conback, NULL, NULL, true) > 0)
						R2D_Image(r_refdef.grect.x, r_refdef.grect.y, r_refdef.grect.width, r_refdef.grect.height, 0, 0, 1, 1, conback);
					else
						R2D_TileClear (r_refdef.grect.x, r_refdef.grect.y, r_refdef.grect.width, r_refdef.grect.height);
					if (!scr_con_target && con)
					{
						int gah;
						Font_BeginString(font_console, 0, 0, &gah, &gah);
						Con_DrawOneConsole(con, con->flags & CONF_KEYFOCUSED, font_console, r_refdef.grect.x+8, r_refdef.grect.y, r_refdef.grect.width-16, r_refdef.grect.height-Font_CharHeight(), 0);
					}
				}
				break;
			case 1:	//show some scores, because we can.
				{	//FIXME: show ALL tracked players.
					int tmp;
					R2D_TileClear (r_refdef.grect.x, r_refdef.grect.y, r_refdef.grect.width, r_refdef.grect.height);
					r_refdef.playerview = &cl.playerview[0];
					tmp = r_refdef.playerview->sb_showscores;
					r_refdef.playerview->sb_showscores = true;
					Sbar_DrawScoreboard (r_refdef.playerview);
					r_refdef.playerview->sb_showscores = tmp;
				}
				break;
			case 2:
				{
					static playerview_t cam_view;
					vec3_t dir;
					int track = cl.playerview[0].cam_spec_track;
					if (track < 0)
						track = cl.playerview[0].playernum;

					if (cam_view.cam_state == CAM_FREECAM || cam_view.cam_spec_track != track)
						cam_view.cam_state = CAM_PENDING;
					cam_view.playernum = -1;//cl.playerview[0].playernum;
					cam_view.cam_spec_track = track;
					cam_view.viewentity = 0;
					cam_view.nolocalplayer = true;
					cam_view.spectator = true;

					Cam_Track(&cam_view, NULL);

					VectorSubtract(cl.playerview[0].simorg, cam_view.cam_desired_position, dir);
					VectorAngles(dir, NULL, cam_view.simangles, false);

					VectorCopy(cam_view.cam_desired_position, cam_view.simorg);

					V_ClearRefdef(&cam_view);
					V_EditExternalModels(0, NULL, 0);
					V_RenderPlayerViews(r_refdef.playerview);
				}
				break;
#endif
			default:	//wow, loads. nothing to show though.
				R2D_TileClear (r_refdef.grect.x, r_refdef.grect.y, r_refdef.grect.width, r_refdef.grect.height);
				break;
			}
		}
	}
	r_refdef.playerview = NULL;
}

//============================================================================

/*
=============
V_Init
=============
*/
void V_Init (void)
{
#define VIEWVARS "View variables"
#ifdef SIDEVIEWS
	int i;
#endif
	Cmd_AddCommand ("v_cshift", V_cshift_f);
	Cmd_AddCommand ("bf", V_BonusFlash_f);
	Cmd_AddCommand ("df", V_DarkFlash_f);
	Cmd_AddCommand ("wf", V_WhiteFlash_f);
	Cmd_AddCommand ("centerview", V_CenterView_f);

	Cvar_Register (&v_centermove, VIEWVARS);
	Cvar_Register (&v_centerspeed, VIEWVARS);

	Cvar_Register (&v_idlescale, VIEWVARS);
	Cvar_Register (&v_iyaw_cycle, VIEWVARS);
	Cvar_Register (&v_iroll_cycle, VIEWVARS);
	Cvar_Register (&v_ipitch_cycle, VIEWVARS);
	Cvar_Register (&v_iyaw_level, VIEWVARS);
	Cvar_Register (&v_iroll_level, VIEWVARS);
	Cvar_Register (&v_ipitch_level, VIEWVARS);

	Cvar_Register (&v_contentblend, VIEWVARS);
	Cvar_Register (&v_damagecshift, VIEWVARS);
	Cvar_Register (&v_quadcshift, VIEWVARS);
	Cvar_Register (&v_suitcshift, VIEWVARS);
	Cvar_Register (&v_ringcshift, VIEWVARS);
	Cvar_Register (&v_pentcshift, VIEWVARS);
	Cvar_Register (&v_gunkick, VIEWVARS);
	Cvar_Register (&v_gunkick_q2, VIEWVARS);

	Cvar_Register (&v_bonusflash, VIEWVARS);

	Cvar_Register (&v_viewheight, VIEWVARS);
	Cvar_Register (&v_depthsortentities, VIEWVARS);

	Cvar_Register (&crosshaircolor, VIEWVARS);
	Cvar_Register (&crosshair, VIEWVARS);
	Cvar_Register (&crosshairsize, VIEWVARS);
	Cvar_Register (&crosshaircorrect, VIEWVARS);
	Cvar_Register (&crosshairimage, VIEWVARS);
	Cvar_Register (&crosshairalpha, VIEWVARS);
	Cvar_Register (&cl_crossx, VIEWVARS);
	Cvar_Register (&cl_crossy, VIEWVARS);
	Cvar_Register (&gl_cshiftpercent, VIEWVARS);
	Cvar_Register (&gl_cshiftenabled, VIEWVARS);
	Cvar_Register (&gl_cshiftborder, VIEWVARS);

	Cvar_Register (&cl_rollspeed, VIEWVARS);
	Cvar_Register (&cl_rollangle, VIEWVARS);
	Cvar_Register (&cl_rollalpha, VIEWVARS);
	Cvar_Register (&cl_bob, VIEWVARS);
	Cvar_Register (&cl_bobcycle, VIEWVARS);
	Cvar_Register (&cl_bobup, VIEWVARS);

	Cvar_Register (&cl_bobmodel, VIEWVARS);
	Cvar_Register (&cl_bobmodel_side, VIEWVARS);
	Cvar_Register (&cl_bobmodel_up, VIEWVARS);
	Cvar_Register (&cl_bobmodel_speed, VIEWVARS);
	Cvar_Register (&v_viewmodel_quake, VIEWVARS);

	Cvar_Register (&v_kicktime, VIEWVARS);
	Cvar_Register (&v_kickroll, VIEWVARS);
	Cvar_Register (&v_kickpitch, VIEWVARS);

	Cvar_Register (&v_deathtilt, VIEWVARS);
	Cvar_Register (&v_skyroom, VIEWVARS);

#ifdef QUAKESTATS
	Cvar_Register (&scr_autoid, VIEWVARS);
	Cvar_Register (&scr_autoid_team, VIEWVARS);
	Cvar_Register (&scr_autoid_health, VIEWVARS);
	Cvar_Register (&scr_autoid_armour, VIEWVARS);
	Cvar_Register (&scr_autoid_weapon, VIEWVARS);
	Cvar_Register (&scr_autoid_weapon_mask, VIEWVARS);
	Cvar_Register (&scr_autoid_teamcolour, VIEWVARS);
	Cvar_Register (&scr_autoid_enemycolour, VIEWVARS);
#endif

#ifdef SIDEVIEWS
#define SECONDARYVIEWVARS "Secondary view vars"
	for (i = 0; i < SIDEVIEWS; i++)
	{
		Cvar_Register (&sideview[i].enabled, SECONDARYVIEWVARS);
		Cvar_Register (&sideview[i].x, SECONDARYVIEWVARS);
		Cvar_Register (&sideview[i].y, SECONDARYVIEWVARS);
		Cvar_Register (&sideview[i].scalex, SECONDARYVIEWVARS);
		Cvar_Register (&sideview[i].scaley, SECONDARYVIEWVARS);
		Cvar_Register (&sideview[i].yaw, SECONDARYVIEWVARS);
	}
#endif

	Cvar_Register (&ffov, VIEWVARS);
	Cvar_Register (&r_projection, VIEWVARS);

	BuildGammaTable (1.0, 1.0, 1.0, 0.0);	// no gamma yet
	Cvar_Register (&v_gamma, VIEWVARS);
	Cvar_Register (&v_contrast, VIEWVARS);
	Cvar_Register (&v_contrastboost, VIEWVARS);
	Cvar_Register (&v_brightness, VIEWVARS);

	Cvar_Register (&chase_active, VIEWVARS);
	Cvar_Register (&chase_back, VIEWVARS);
	Cvar_Register (&chase_up, VIEWVARS);

#if defined(_WIN32) && !defined(MINIMAL)
	Cvar_Register (&itburnsitburnsmakeitstop, VIEWVARS);
#endif
}