/*
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.

*/

// draw.c -- this is the only file outside the refresh that touches the
// vid buffer

#include "quakedef.h"

// jkrige - scale2d
#ifdef _WIN32
#include "winquake.h"
#endif
// jkrige - scale2d

// jkrige - jpg
#include "../jpeg-6/jpeglib.h"
byte	*jpeg_rgba;
// jkrige - jpg

//#define GL_COLOR_INDEX8_EXT     0x80E5

extern unsigned char d_15to8table[65536];

cvar_t		gl_nobind = {"gl_nobind", "0"};
cvar_t		gl_max_size = {"gl_max_size", "1024"};
cvar_t		gl_picmip = {"gl_picmip", "0"};

// jkrige - luma textures
cvar_t		gl_lumatex_render = {"gl_lumatex_render", "1", true};
// jkrige - luma textures

byte		*draw_chars;				// 8*8 graphic characters
qpic_t		*draw_disc;
qpic_t		*draw_backtile;

int			translate_texture;
int			char_texture;

typedef struct
{
	int		texnum;
	float	sl, tl, sh, th;
} glpic_t;

byte		conback_buffer[sizeof(qpic_t) + sizeof(glpic_t)];
qpic_t		*conback = (qpic_t *)&conback_buffer;

// jkrige - .lit colored lights
//int		gl_lightmap_format = 4;
// jkrige - .lit colored lights
int		gl_solid_format = 3;
int		gl_alpha_format = 4;

// jkrige - change bilinear texture filtering to trilinear texture filtering
//int		gl_filter_min = GL_LINEAR_MIPMAP_NEAREST;
//int		gl_filter_max = GL_LINEAR;
int		gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
int		gl_filter_max = GL_LINEAR_MIPMAP_LINEAR;
// jkrige - change bilinear texture filtering to trilinear texture filtering

float tex_mode = -1.0f;

int		texels;

// jkrige - moved to glquake.h
/*typedef struct
{
	int		texnum;

	qboolean	tex_luma; // jkrige - luma textures

	char	identifier[64];
	int		width, height;
	qboolean	mipmap;
} gltexture_t;

#define	MAX_GLTEXTURES	1024*/
// jkrige - moved to glquake.h

gltexture_t	gltextures[MAX_GLTEXTURES];
int			numgltextures;


void GL_Bind (int texnum)
{
	if (gl_nobind.value)
		texnum = char_texture;
	if (currenttexture == texnum)
		return;
	currenttexture = texnum;

#ifdef UQ_GLDEBUG
// jkrige - opengl's bind function
//#ifdef _WIN32
//	bindTexFunc (GL_TEXTURE_2D, texnum);
//#else
	glBindTexture(GL_TEXTURE_2D, texnum);
//#endif
// jkrige - opengl's bind function
#endif	// UQ_GLDEBUG
}


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

  scrap allocation

  Allocate all the little status bar obejcts into a single texture
  to crutch up stupid hardware / drivers

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

#define	MAX_SCRAPS		2
#define	BLOCK_WIDTH		256
#define	BLOCK_HEIGHT	256

int			scrap_allocated[MAX_SCRAPS][BLOCK_WIDTH];
byte		scrap_texels[MAX_SCRAPS][BLOCK_WIDTH*BLOCK_HEIGHT*4];
qboolean	scrap_dirty;
int			scrap_texnum;

// returns a texture number and the position inside it
int Scrap_AllocBlock (int w, int h, int *x, int *y)
{
	int		i, j;
	int		best, best2;
	int		bestx;
	int		texnum;

	for (texnum=0 ; texnum<MAX_SCRAPS ; texnum++)
	{
		best = BLOCK_HEIGHT;

		for (i=0 ; i<BLOCK_WIDTH-w ; i++)
		{
			best2 = 0;

			for (j=0 ; j<w ; j++)
			{
				if (scrap_allocated[texnum][i+j] >= best)
					break;
				if (scrap_allocated[texnum][i+j] > best2)
					best2 = scrap_allocated[texnum][i+j];
			}
			if (j == w)
			{	// this is a valid spot
				*x = i;
				*y = best = best2;
			}
		}

		if (best + h > BLOCK_HEIGHT)
			continue;

		for (i=0 ; i<w ; i++)
			scrap_allocated[texnum][*x + i] = best + h;

		return texnum;
	}

	Sys_Error ("Scrap_AllocBlock: full");
}

int	scrap_uploads;

void Scrap_Upload (void)
{
	int		texnum;

	scrap_uploads++;

	for (texnum=0 ; texnum<MAX_SCRAPS ; texnum++)
	{
		GL_Bind(scrap_texnum + texnum);
		GL_Upload8 (scrap_texels[texnum], BLOCK_WIDTH, BLOCK_HEIGHT, false, true);
	}
	scrap_dirty = false;

	// jkrige - scale2d
	//glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	//glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	// jkrige - scale2d
}

//=============================================================================
/* Support Routines */

typedef struct cachepic_s
{
	char		name[MAX_QPATH];
	qpic_t		pic;
	byte		padding[32];	// for appended glpic
} cachepic_t;

#define	MAX_CACHED_PICS		128
cachepic_t	menu_cachepics[MAX_CACHED_PICS];
int			menu_numcachepics;

byte		menuplyr_pixels[4096];

int		pic_texels;
int		pic_count;

qpic_t *Draw_PicFromWad (char *name)
{
	qpic_t	*p;
	glpic_t	*gl;

	p = W_GetLumpName (name);
	gl = (glpic_t *)p->data;

	// load little ones into the scrap
	if (p->width < 64 && p->height < 64)
	{
		int		x, y;
		int		i, j, k;
		int		texnum;

		texnum = Scrap_AllocBlock (p->width, p->height, &x, &y);
		scrap_dirty = true;
		k = 0;
		for (i=0 ; i<p->height ; i++)
			for (j=0 ; j<p->width ; j++, k++)
				scrap_texels[texnum][(y+i)*BLOCK_WIDTH + x + j] = p->data[k];
		texnum += scrap_texnum;
		gl->texnum = texnum;
		gl->sl = (x+0.01)/(float)BLOCK_WIDTH;
		gl->sh = (x+p->width-0.01)/(float)BLOCK_WIDTH;
		gl->tl = (y+0.01)/(float)BLOCK_WIDTH;
		gl->th = (y+p->height-0.01)/(float)BLOCK_WIDTH;

		pic_count++;
		pic_texels += p->width*p->height;
	}
	else
	{
		gl->texnum = GL_LoadPicTexture (p);
		gl->sl = 0;
		gl->sh = 1;
		gl->tl = 0;
		gl->th = 1;
	}

	return p;
}


/*
================
Draw_CachePic
================
*/
qpic_t	*Draw_CachePic (char *path)
{
	cachepic_t	*pic;
	int			i;
	qpic_t		*dat;
	glpic_t		*gl;

	for (pic=menu_cachepics, i=0 ; i<menu_numcachepics ; pic++, i++)
		if (!strcmp (path, pic->name))
			return &pic->pic;

	if (menu_numcachepics == MAX_CACHED_PICS)
		Sys_Error ("menu_numcachepics == MAX_CACHED_PICS");
	menu_numcachepics++;
	strcpy (pic->name, path);

//
// load the pic from disk
//
	dat = (qpic_t *)COM_LoadTempFile (path);	
	if (!dat)
		Sys_Error ("Draw_CachePic: failed to load %s", path);
	SwapPic (dat);

	// HACK HACK HACK --- we need to keep the bytes for
	// the translatable player picture just for the menu
	// configuration dialog
	if (!strcmp (path, "gfx/menuplyr.lmp"))
		memcpy (menuplyr_pixels, dat->data, dat->width*dat->height);

	pic->pic.width = dat->width;
	pic->pic.height = dat->height;

	gl = (glpic_t *)pic->pic.data;
	gl->texnum = GL_LoadPicTexture (dat);
	gl->sl = 0;
	gl->sh = 1;
	gl->tl = 0;
	gl->th = 1;

	return &pic->pic;
}


/*void Draw_CharToConback (int num, byte *dest)
{
	int		row, col;
	byte	*source;
	int		drawline;
	int		x;

	row = num>>4;
	col = num&15;
	source = draw_chars + (row<<10) + (col<<3);

	drawline = 8;

	while (drawline--)
	{
		for (x=0 ; x<8 ; x++)
			if (source[x] != 255)
				dest[x] = 0x60 + source[x];
		source += 128;
		dest += 320;
	}

}*/

typedef struct
{
	char *name;
	int	minimize, maximize;
} glmode_t;

glmode_t modes[] = {
	{"GL_NEAREST", GL_NEAREST, GL_NEAREST},
	{"GL_LINEAR", GL_LINEAR, GL_LINEAR},
	{"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
	{"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
	{"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
	{"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
};

/*
===============
Draw_TextureMode_f
===============
*/
/*void Draw_TextureMode_f (void)
{
	int		i;
	gltexture_t	*glt;

	if (Cmd_Argc() == 1)
	{
		for (i=0 ; i< 6 ; i++)
			if (gl_filter_min == modes[i].minimize)
			{
				Con_Printf ("%s\n", modes[i].name);
				return;
			}
		Con_Printf ("current filter is unknown???\n");
		return;
	}

	for (i=0 ; i< 6 ; i++)
	{
		if (!Q_strcasecmp (modes[i].name, Cmd_Argv(1) ) )
			break;
	}
	if (i == 6)
	{
		Con_Printf ("bad filter name\n");
		return;
	}

	gl_filter_min = modes[i].minimize;
	gl_filter_max = modes[i].maximize;

	// change all the existing mipmap texture objects
	for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
	{
		if (glt->mipmap)
		{
			GL_Bind (glt->texnum);
			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
		}
	}
}*/

// jkrige - texture mode
extern int	solidskytexture;
extern int	alphaskytexture;

void Draw_TextureMode_f (void)
{
	int		i, j;
	gltexture_t	*glt;
	int AnisotropyModes = 0;

	if(tex_mode < 0.0f)
		tex_mode = gl_texturemode.value;

	if(tex_mode == gl_texturemode.value)
		return;

	if(floor(gl_texturemode.value) < 0.0f | gl_texturemode.value != floor(gl_texturemode.value))
	{
		Con_Printf ("unknown texture mode\n");
		Cvar_Set ("gl_texturemode", "2");

		return;
	}

	i = 0;

	if(gl_texturemode.value == 1.0f)
		i = 3;

	if(gl_texturemode.value >= 2.0f)
		i = 5;

	if(anisotropic_ext == true)
		AnisotropyModes = (int)floor((log(maximumAnisotrophy)/log(2.0f)) + 0.5f);
	else
		AnisotropyModes = 0;

	if(anisotropic_ext == false)
	{
		if (gl_texturemode.value > 2.0f)
		{
			Con_Printf ("unknown texture mode\n");
			Cvar_Set ("gl_texturemode", "2");
			
			return;
		}
	}

	if(anisotropic_ext == true)
	{
		if (gl_texturemode.value > (2.0f + (float)AnisotropyModes))
		{
			Con_Printf ("unknown texture mode\n");
			Cvar_SetValue ("gl_texturemode", (2.0f + (float)AnisotropyModes));
			
			return;
		}
	}

	gl_filter_min = modes[i].minimize;
	gl_filter_max = modes[i].maximize;

#ifdef UQ_GLDEBUG
	// change all the existing mipmap texture objects
	for (j=0, glt=gltextures ; j<numgltextures ; j++, glt++)
	{
		if (glt->mipmap)
		{
			GL_Bind (glt->texnum);

			if(gl_texturemode.value <= 2.0f)
			{
				glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
				glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
				if(anisotropic_ext == true)
					glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.0f);
			}

			// jkrige - anisotropic filtering
			if(gl_texturemode.value > 2.0f && anisotropic_ext == true)
				glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, pow(2.0f, gl_texturemode.value - 2.0f));
			// jkrige - anisotropic filtering


			// jkrige - luma textures
			if(glt->tex_luma == true)
			{
				GL_Bind (JK_LUMA_TEX + glt->texnum);

				if(gl_texturemode.value <= 2.0f)
				{
					glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
					glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
					if(anisotropic_ext == true)
						glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.0f);
				}

				// jkrige - anisotropic filtering
				if(gl_texturemode.value > 2.0f && anisotropic_ext == true)
					glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, pow(2.0f, gl_texturemode.value - 2.0f));
				// jkrige - anisotropic filtering
			}
			// jkrige - luma textures
		}
	}


	// sky textures
	if(gl_texturemode.value == 0.0f)
	{
		GL_Bind (solidskytexture);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

		GL_Bind (alphaskytexture);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	}
	else
	{
		GL_Bind (solidskytexture);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

		GL_Bind (alphaskytexture);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	}
	// sky textures
#endif	// UQ_GLDEBUG

	tex_mode = gl_texturemode.value;
}
// jkrige - texture mode

/*
===============
Draw_Init
===============
*/
void Draw_Init (void)
{
	int		i;
	qpic_t	*cb;
	byte	*dest, *src;
	int		x, y;
	char	ver[40];
	glpic_t	*gl;
	int		start;
	byte	*ncdata;
	int		f, fstep;


	Cvar_RegisterVariable (&gl_nobind);
	Cvar_RegisterVariable (&gl_max_size);
	Cvar_RegisterVariable (&gl_picmip);

	// jkrige - luma textures
	Cvar_RegisterVariable (&gl_lumatex_render);
	// jkrige - luma textures


	// 3dfx can only handle 256 wide textures
	if (!Q_strncasecmp ((char *)gl_renderer, "3dfx",4) || strstr((char *)gl_renderer, "Glide"))
		Cvar_Set ("gl_max_size", "256");

	//Cmd_AddCommand ("gl_texturemode", &Draw_TextureMode_f); // jkrige - texture mode

	// load the console background and the charset
	// by hand, because we need to write the version
	// string into the background before turning
	// it into a texture
	draw_chars = W_GetLumpName ("conchars");
	for (i=0 ; i<256*64 ; i++)
		if (draw_chars[i] == 0)
			draw_chars[i] = 255;	// proper transparent color

	// now turn them into textures


	// jkrige - external texture loading
	//char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true);
	char_texture = GL_LoadTexture ("charset", "lump", 128, 128, draw_chars, false, true, 1);
	// jkrige - external texture loading

	//glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	//glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

	start = Hunk_LowMark();

	cb = (qpic_t *)COM_LoadTempFile ("gfx/conback.lmp");	
	if (!cb)
		Sys_Error ("Couldn't load gfx/conback.lmp");
	SwapPic (cb);

	// jkrige - print version info to the console
	// hack the version number directly into the pic
/*#if defined(__linux__)
	sprintf (ver, "(Linux %2.2f, gl %4.2f) %4.2f", (float)LINUX_VERSION, (float)GLQUAKE_VERSION, (float)VERSION);
#else
	sprintf (ver, "(gl %4.2f) %4.2f", (float)GLQUAKE_VERSION, (float)VERSION);
#endif
	dest = cb->data + 320*186 + 320 - 11 - 8*strlen(ver);
	y = strlen(ver);
	for (x=0 ; x<y ; x++)
		Draw_CharToConback (ver[x], dest+(x<<3));*/
	// jkrige - print version info to the console

#if 0
	conback->width = vid.conwidth;
	conback->height = vid.conheight;

 	// scale console to vid size
 	dest = ncdata = Hunk_AllocName(vid.conwidth * vid.conheight, "conback");
 
 	for (y=0 ; y<vid.conheight ; y++, dest += vid.conwidth)
 	{
 		src = cb->data + cb->width * (y*cb->height/vid.conheight);
 		if (vid.conwidth == cb->width)
 			memcpy (dest, src, vid.conwidth);
 		else
 		{
 			f = 0;
 			fstep = cb->width*0x10000/vid.conwidth;
 			for (x=0 ; x<vid.conwidth ; x+=4)
 			{
 				dest[x] = src[f>>16];
 				f += fstep;
 				dest[x+1] = src[f>>16];
 				f += fstep;
 				dest[x+2] = src[f>>16];
 				f += fstep;
 				dest[x+3] = src[f>>16];
 				f += fstep;
 			}
 		}
 	}
#else
	conback->width = cb->width;
	conback->height = cb->height;
	ncdata = cb->data;
#endif

	gl = (glpic_t *)conback->data;

	// jkrige - external texture loading
	//gl->texnum = GL_LoadTexture ("conback", conback->width, conback->height, ncdata, false, false);
	gl->texnum = GL_LoadTexture ("conback", "lump", conback->width, conback->height, ncdata, false, false, 1);
	// jkrige - external texture loading

#ifdef UQ_GLDEBUG
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
#endif	// UQ_GLDEBUG
	gl->sl = 0;
	gl->sh = 1;
	gl->tl = 0;
	gl->th = 1;
	conback->width = vid.width;
	conback->height = vid.height;

	// free loaded console
	Hunk_FreeToLowMark(start);

	// save a texture slot for translated picture
	translate_texture = texture_extension_number++;

	// save slots for scraps
	scrap_texnum = texture_extension_number;
	texture_extension_number += MAX_SCRAPS;

	//
	// get the other pics we need
	//
	draw_disc = Draw_PicFromWad ("disc");
	draw_backtile = Draw_PicFromWad ("backtile");
}



/*
================
Draw_Character

Draws one 8*8 graphics character with 0 being transparent.
It can be clipped to the top of the screen to allow the console to be
smoothly scrolled off.
================
*/
void Draw_Character (int x, int y, int num)
{
#ifdef UQ_GLDEBUG
	byte			*dest;
	byte			*source;
	unsigned short	*pusdest;
	int				drawline;	
	int				row, col;
	float			frow, fcol, size;

	if (num == 32)
		return;		// space

	num &= 255;
	
	if (y <= -8)
		return;			// totally off screen

	row = num>>4;
	col = num&15;

	frow = row*0.0625;
	fcol = col*0.0625;
	size = 0.0625;

	GL_Bind (char_texture);

	glBegin (GL_QUADS);
	glTexCoord2f (fcol, frow);
	glVertex2f (x, y);
	glTexCoord2f (fcol + size, frow);
	glVertex2f (x+8, y);
	glTexCoord2f (fcol + size, frow + size);
	glVertex2f (x+8, y+8);
	glTexCoord2f (fcol, frow + size);
	glVertex2f (x, y+8);
	glEnd ();
#endif	// UQ_GLDEBUG
}

/*
================
Draw_String
================
*/
void Draw_String (int x, int y, char *str)
{
	while (*str)
	{
		Draw_Character (x, y, *str);
		str++;
		x += 8;
	}
}

/*
================
Draw_DebugChar

Draws a single character directly to the upper right corner of the screen.
This is for debugging lockups by drawing different chars in different parts
of the code.
================
*/
void Draw_DebugChar (char num)
{
}

/*
=============
Draw_AlphaPic
=============
*/
void Draw_AlphaPic (int x, int y, qpic_t *pic, float alpha)
{
#ifdef UQ_GLDEBUG
	byte			*dest, *source;
	unsigned short	*pusdest;
	int				v, u;
	glpic_t			*gl;

	if (scrap_dirty)
		Scrap_Upload ();
	gl = (glpic_t *)pic->data;
	glDisable(GL_ALPHA_TEST);
	glEnable (GL_BLEND);
//	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//	glCullFace(GL_FRONT);
	glColor4f (1,1,1,alpha);
	GL_Bind (gl->texnum);
	glBegin (GL_QUADS);
	glTexCoord2f (gl->sl, gl->tl);
	glVertex2f (x, y);
	glTexCoord2f (gl->sh, gl->tl);
	glVertex2f (x+pic->width, y);
	glTexCoord2f (gl->sh, gl->th);
	glVertex2f (x+pic->width, y+pic->height);
	glTexCoord2f (gl->sl, gl->th);
	glVertex2f (x, y+pic->height);
	glEnd ();
	glColor4f (1,1,1,1);
	glEnable(GL_ALPHA_TEST);
	glDisable (GL_BLEND);
#endif
}


/*
=============
Draw_Pic
=============
*/
void Draw_Pic (int x, int y, qpic_t *pic)
{
#ifdef UQ_GLDEBUG
	byte			*dest, *source;
	unsigned short	*pusdest;
	int				v, u;
	glpic_t			*gl;

	if (scrap_dirty)
		Scrap_Upload ();
	gl = (glpic_t *)pic->data;
	glColor4f (1,1,1,1);
	GL_Bind (gl->texnum);
	glBegin (GL_QUADS);
	glTexCoord2f (gl->sl, gl->tl);
	glVertex2f (x, y);
	glTexCoord2f (gl->sh, gl->tl);
	glVertex2f (x+pic->width, y);
	glTexCoord2f (gl->sh, gl->th);
	glVertex2f (x+pic->width, y+pic->height);
	glTexCoord2f (gl->sl, gl->th);
	glVertex2f (x, y+pic->height);
	glEnd ();
#endif
}


/*
=============
Draw_TransPic
=============
*/
void Draw_TransPic (int x, int y, qpic_t *pic)
{
	byte	*dest, *source, tbyte;
	unsigned short	*pusdest;
	int				v, u;

	if (x < 0 || (unsigned)(x + pic->width) > vid.width || y < 0 || (unsigned)(y + pic->height) > vid.height)
	{
		Sys_Error ("Draw_TransPic: bad coordinates");
	}
		
	Draw_Pic (x, y, pic);
}


/*
=============
Draw_TransPicTranslate

Only used for the player color selection menu
=============
*/
void Draw_TransPicTranslate (int x, int y, qpic_t *pic, byte *translation)
{
#ifdef UQ_GLDEBUG
	int				v, u, c;
	unsigned		trans[64*64], *dest;
	byte			*src;
	int				p;

	GL_Bind (translate_texture);

	c = pic->width * pic->height;

	dest = trans;
	for (v=0 ; v<64 ; v++, dest += 64)
	{
		src = &menuplyr_pixels[ ((v*pic->height)>>6) *pic->width];
		for (u=0 ; u<64 ; u++)
		{
			p = src[(u*pic->width)>>6];
			if (p == 255)
				dest[u] = p;
			else
				dest[u] =  d_8to24table[translation[p]];
		}
	}

	glTexImage2D (GL_TEXTURE_2D, 0, gl_alpha_format, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, trans);

	// jkrige - use "point sampled" texture mode
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	// jkrige - use "point sampled" texture mode

	glColor3f (1,1,1);
	glBegin (GL_QUADS);
	glTexCoord2f (0, 0);
	glVertex2f (x, y);
	glTexCoord2f (1, 0);
	glVertex2f (x+pic->width, y);
	glTexCoord2f (1, 1);
	glVertex2f (x+pic->width, y+pic->height);
	glTexCoord2f (0, 1);
	glVertex2f (x, y+pic->height);
	glEnd ();
#endif	// UQ_GLDEBUG
}

// jkrige - print version info to the console
void Console_Print (int cx, int cy, char *str)
{
	while (*str)
	{
		Draw_Character (cx, cy, ((unsigned char)(*str))+256);
		str++;
		cx += 8;
	}
}
// jkrige - print version info to the console

/*
================
Draw_ConsoleBackground

================
*/
void Draw_ConsoleBackground (int lines)
{
	// jkrige - removed alpha console background
	//int y = (vid.height * 3) >> 2;
	// jkrige - removed alpha console background


	// jkrige - print version info to the console
	int ver_x, ver_y;
	char	engineversion[32];
	sprintf(engineversion, "UQE Quake %.2f", QUAKE_VERSION);
	ver_x = (int)vid.width - (strlen(engineversion)*8) /*- 8*/;
	ver_y = (int)vid.height - 8; //- 16;
	// jkrige - print version info to the console


	// jkrige - removed alpha console background
	//if (lines > y)
	//	Draw_Pic(0, lines - vid.height, conback);
	//else
	//	Draw_AlphaPic (0, lines - vid.height, conback, (float)(1.2 * lines)/y);
	Draw_Pic(0, lines - vid.height, conback);
	// jkrige - removed alpha console background


	// jkrige - print version info to the console
	Console_Print(ver_x, lines - (int)vid.height + ver_y, engineversion);
	// jkrige - print version info to the console
}


/*
=============
Draw_TileClear

This repeats a 64*64 tile graphic to fill the screen around a sized down
refresh window.
=============
*/
void Draw_TileClear (int x, int y, int w, int h)
{
#ifdef UQ_GLDEBUG
	glColor3f (1,1,1);
	GL_Bind (*(int *)draw_backtile->data);
	glBegin (GL_QUADS);
	glTexCoord2f (x/64.0, y/64.0);
	glVertex2f (x, y);
	glTexCoord2f ( (x+w)/64.0, y/64.0);
	glVertex2f (x+w, y);
	glTexCoord2f ( (x+w)/64.0, (y+h)/64.0);
	glVertex2f (x+w, y+h);
	glTexCoord2f ( x/64.0, (y+h)/64.0 );
	glVertex2f (x, y+h);
	glEnd ();
#endif	// UQ_GLDEBUG
}


/*
=============
Draw_Fill

Fills a box of pixels with a single color
=============
*/
void Draw_Fill (int x, int y, int w, int h, int c)
{
#ifdef UQ_GLDEBUG
	glDisable (GL_TEXTURE_2D);
	glColor3f (host_basepal[c*3]/255.0,
		host_basepal[c*3+1]/255.0,
		host_basepal[c*3+2]/255.0);

	glBegin (GL_QUADS);

	glVertex2f (x,y);
	glVertex2f (x+w, y);
	glVertex2f (x+w, y+h);
	glVertex2f (x, y+h);

	glEnd ();
	glColor3f (1,1,1);
	glEnable (GL_TEXTURE_2D);
#endif
}
//=============================================================================

/*
================
Draw_FadeScreen

================
*/
void Draw_FadeScreen (void)
{
#ifdef UQ_GLDEBUG
	glEnable (GL_BLEND);
	glDisable (GL_TEXTURE_2D);
	glColor4f (0, 0, 0, 0.8);
	glBegin (GL_QUADS);

	glVertex2f (0,0);
	glVertex2f (vid.width, 0);
	glVertex2f (vid.width, vid.height);
	glVertex2f (0, vid.height);

	glEnd ();
	glColor4f (1,1,1,1);
	glEnable (GL_TEXTURE_2D);
	glDisable (GL_BLEND);

	//Sbar_Changed(); // jkrige - always draw sbar
#endif
}

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

/*
================
Draw_BeginDisc

Draws the little blue disc in the corner of the screen.
Call before beginning any disc IO.
================
*/
void Draw_BeginDisc (void)
{
#ifdef UQ_GLDEBUG
	if (!draw_disc)
		return;
	glDrawBuffer  (GL_FRONT);
	Draw_Pic (vid.width - 24, 0, draw_disc);
	glDrawBuffer  (GL_BACK);
#endif
}


/*
================
Draw_EndDisc

Erases the disc icon.
Call after completing any disc IO
================
*/
void Draw_EndDisc (void)
{
}

/*
================
GL_Set2D

Setup as if the screen was 320*200
================
*/
void GL_Set2D (void)
{
#ifdef UQ_GLDEBUG
	glViewport (glx, gly, glwidth, glheight);

	glMatrixMode(GL_PROJECTION);
    glLoadIdentity ();
	glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);

	glMatrixMode(GL_MODELVIEW);
    glLoadIdentity ();

	glDisable (GL_DEPTH_TEST);
	glDisable (GL_CULL_FACE);
	glDisable (GL_BLEND);
	glEnable (GL_ALPHA_TEST);
//	glDisable (GL_ALPHA_TEST);

	glColor4f (1,1,1,1);
#endif
}

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

/*
================
GL_FindTexture
================
*/
int GL_FindTexture (char *identifier)
{
	int		i;
	gltexture_t	*glt;

	for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
	{
		if (!strcmp (identifier, glt->identifier))
			return gltextures[i].texnum;
	}

	return -1;
}

/*
================
GL_ResampleTexture
================
*/
void GL_ResampleTexture (unsigned *in, int inwidth, int inheight, unsigned *out,  int outwidth, int outheight)
{
	int		i, j;
	unsigned	*inrow;
	unsigned	frac, fracstep;

	fracstep = inwidth*0x10000/outwidth;
	for (i=0 ; i<outheight ; i++, out += outwidth)
	{
		inrow = in + inwidth*(i*inheight/outheight);
		frac = fracstep >> 1;
		for (j=0 ; j<outwidth ; j+=4)
		{
			out[j] = inrow[frac>>16];
			frac += fracstep;
			out[j+1] = inrow[frac>>16];
			frac += fracstep;
			out[j+2] = inrow[frac>>16];
			frac += fracstep;
			out[j+3] = inrow[frac>>16];
			frac += fracstep;
		}
	}
}

/*
================
GL_Resample8BitTexture -- JACK
================
*/
void GL_Resample8BitTexture (unsigned char *in, int inwidth, int inheight, unsigned char *out,  int outwidth, int outheight)
{
	int		i, j;
	unsigned	char *inrow;
	unsigned	frac, fracstep;

	fracstep = inwidth*0x10000/outwidth;
	for (i=0 ; i<outheight ; i++, out += outwidth)
	{
		inrow = in + inwidth*(i*inheight/outheight);
		frac = fracstep >> 1;
		for (j=0 ; j<outwidth ; j+=4)
		{
			out[j] = inrow[frac>>16];
			frac += fracstep;
			out[j+1] = inrow[frac>>16];
			frac += fracstep;
			out[j+2] = inrow[frac>>16];
			frac += fracstep;
			out[j+3] = inrow[frac>>16];
			frac += fracstep;
		}
	}
}


/*
================
GL_MipMap

Operates in place, quartering the size of the texture
================
*/
void GL_MipMap (byte *in, int width, int height)
{
	int		i, j;
	byte	*out;

	width <<=2;
	height >>= 1;
	out = in;
	for (i=0 ; i<height ; i++, in+=width)
	{
		for (j=0 ; j<width ; j+=8, out+=4, in+=8)
		{
			out[0] = (in[0] + in[4] + in[width+0] + in[width+4])>>2;
			out[1] = (in[1] + in[5] + in[width+1] + in[width+5])>>2;
			out[2] = (in[2] + in[6] + in[width+2] + in[width+6])>>2;
			out[3] = (in[3] + in[7] + in[width+3] + in[width+7])>>2;
		}
	}
}

/*
================
GL_MipMap8Bit

Mipping for 8 bit textures
================
*/
void GL_MipMap8Bit (byte *in, int width, int height)
{
	int		i, j;
	unsigned short     r,g,b;
	byte	*out, *at1, *at2, *at3, *at4;

//	width <<=2;
	height >>= 1;
	out = in;
	for (i=0 ; i<height ; i++, in+=width)
	{
		for (j=0 ; j<width ; j+=2, out+=1, in+=2)
		{
			at1 = (byte *) (d_8to24table + in[0]);
			at2 = (byte *) (d_8to24table + in[1]);
			at3 = (byte *) (d_8to24table + in[width+0]);
			at4 = (byte *) (d_8to24table + in[width+1]);

 			r = (at1[0]+at2[0]+at3[0]+at4[0]); r>>=5;
 			g = (at1[1]+at2[1]+at3[1]+at4[1]); g>>=5;
 			b = (at1[2]+at2[2]+at3[2]+at4[2]); b>>=5;

			out[0] = d_15to8table[(r<<0) + (g<<5) + (b<<10)];
		}
	}
}

/*
===============
GL_Upload32
===============
*/
void GL_Upload32 (unsigned *data, int width, int height,  qboolean mipmap, qboolean alpha)
{
#ifdef UQ_GLDEBUG
	int			samples;

	// jkrige - doubled textures
	//static	unsigned	scaled[1024 * 512];	// [512*256];
	static	unsigned	scaled[2048 * 2048];
	// jkrige - doubled textures

	int			scaled_width, scaled_height;

	// jkrige - anisotropic filtering
	int			i = 3;
	int AnisotropyModes = 0;
	// jkrige - anisotropic filtering

	// jkrige - non power of two
	//for (scaled_width = 1 ; scaled_width < width ; scaled_width<<=1);
	//for (scaled_height = 1 ; scaled_height < height ; scaled_height<<=1);
	if(npow2_ext == true && gl_texture_non_power_of_two.value == 1.0f /*&& !mipmap*/)
	{
		scaled_width = width;
		scaled_height = height;
	}
	else
	{
		for (scaled_width = 1 ; scaled_width < width ; scaled_width<<=1);
		for (scaled_height = 1 ; scaled_height < height ; scaled_height<<=1);
	}
	// jkrige - non power of two

	if ((scaled_width >> (int)gl_picmip.value) && (scaled_height >> (int)gl_picmip.value))
	{
		scaled_width >>= (int)gl_picmip.value;
		scaled_height >>= (int)gl_picmip.value;
	}
	//scaled_width >>= (int)gl_picmip.value;
	//scaled_height >>= (int)gl_picmip.value;

	if (scaled_width > gl_max_size.value)
		scaled_width = gl_max_size.value;

	if (scaled_height > gl_max_size.value)
		scaled_height = gl_max_size.value;

	if (scaled_width * scaled_height > sizeof(scaled)/4)
		Sys_Error ("GL_LoadTexture: too big");

	samples = alpha ? gl_alpha_format : gl_solid_format;

#if 0
	if (mipmap)
		gluBuild2DMipmaps (GL_TEXTURE_2D, samples, width, height, GL_RGBA, GL_UNSIGNED_BYTE, trans);
	else if (scaled_width == width && scaled_height == height)
		glTexImage2D (GL_TEXTURE_2D, 0, samples, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, trans);
	else
	{
		gluScaleImage (GL_RGBA, width, height, GL_UNSIGNED_BYTE, trans,
			scaled_width, scaled_height, GL_UNSIGNED_BYTE, scaled);
		glTexImage2D (GL_TEXTURE_2D, 0, samples, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
	}
#else
texels += scaled_width * scaled_height;

	if (scaled_width == width && scaled_height == height)
	{
		if (!mipmap)
		{
			glTexImage2D (GL_TEXTURE_2D, 0, samples, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
			goto done;
		}
		memcpy (scaled, data, width*height*4);
	}
	else
		GL_ResampleTexture (data, width, height, scaled, scaled_width, scaled_height);

	glTexImage2D (GL_TEXTURE_2D, 0, samples, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
	if (mipmap)
	{
		int		miplevel;

		miplevel = 0;
		while (scaled_width > 1 || scaled_height > 1)
		{
			GL_MipMap ((byte *)scaled, scaled_width, scaled_height);


			// jkrige - non power of two
			scaled_width >>= 1;
			scaled_height >>= 1;
			/*if(npow2_ext == true && gl_texture_non_power_of_two.value == 1.0f && !mipmap)
			{
				scaled_width = (int)floor (width / pow(2, miplevel+1));
				scaled_height = (int)floor (height / pow (2, miplevel+1));
			}
			else
			{
				scaled_width >>= 1;
				scaled_height >>= 1;
			}*/
			// jkrige - non power of two


			if (scaled_width < 1)
				scaled_width = 1;
			if (scaled_height < 1)
				scaled_height = 1;
			miplevel++;
			glTexImage2D (GL_TEXTURE_2D, miplevel, samples, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
		}
	}
done: ;
#endif
	
	// jkrige - anisotropic filtering
	if (mipmap)
	  {
		  // jkrige - texture modes
		  if(floor(gl_texturemode.value) < 0.0f | gl_texturemode.value != floor(gl_texturemode.value))
		  {
			  Con_Printf ("unknown texture mode\n");
			  Cvar_Set ("gl_texturemode", "2");
		  }

		  if(gl_texturemode.value == 0.0f)
			  i = 0;

		  if(gl_texturemode.value == 1.0f)
			  i = 3;

		  if(gl_texturemode.value >= 2.0f)
			  i = 5;

		  if(anisotropic_ext == true)
			  AnisotropyModes = (int)floor((log(maximumAnisotrophy)/log(2.0f)) + 0.5f);
		  else
			  AnisotropyModes = 0;

		  if(anisotropic_ext == false)
		  {
			  if (gl_texturemode.value > 2.0f)
			  {
				  Con_Printf ("unknown texture mode\n");
				  Cvar_Set ("gl_texturemode", "2");
				  
				  return;
			  }
		  }
		  
		  if(anisotropic_ext == true)
		  {
			  if (gl_texturemode.value > (2.0f + (float)AnisotropyModes))
			  {
				  Con_Printf ("unknown texture mode\n");
				  Cvar_SetValue ("gl_texturemode", (2.0f + (float)AnisotropyModes));
				  
				  return;
			  }
		  }

		  gl_filter_min = modes[i].minimize;
		  gl_filter_max = modes[i].maximize;

		  if(gl_texturemode.value <= 2.0f)
		  {
			  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
			  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
			  if(anisotropic_ext == true)
				  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.0f);
		  }
		  
		  // jkrige - anisotropic filtering
		  if(gl_texturemode.value > 2.0f && anisotropic_ext == true)
			  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, pow(2.0f, gl_texturemode.value - 2.0f));
		  // jkrige - anisotropic filtering

		  // jkrige - texture modes


		  /*
		  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
		  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);

		  // jkrige - anisotropic filtering
		  for (i = 0; i < 6; i++)
		  {
			  if (gl_filter_min == modes[i].minimize)
				  break;
		  }
		  
		  if(i == 5 && anisotropic_ext == true)
			  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, maximumAnisotrophy);
		  // jkrige - anisotropic filtering
		  */
	  }
	  else
	  {
		  // jkrige - scale2d
		  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		  // jkrige - scale2d

		  //glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR /*gl_filter_max*/); // jkrige - change bilinear texture filtering to trilinear texture filtering
		  //glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR /*gl_filter_max*/); // jkrige - change bilinear texture filtering to trilinear texture filtering
	  }
	// jkrige - anisotropic filtering

	/*if (mipmap)
	{
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
	}
	else
	{
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
	}*/
#endif	// UQ_GLDEBUG
}


// jkrige - no 8bit palette extensions
/*void GL_Upload8_EXT (byte *data, int width, int height,  qboolean mipmap, qboolean alpha) 
{
	int			i, s;
	qboolean	noalpha;
	int			p;
	static unsigned j;
	int			samples;
    static	unsigned char scaled[1024*512];	// [512*256];
	int			scaled_width, scaled_height;

	s = width*height;
	// if there are no transparent pixels, make it a 3 component
	// texture even if it was specified as otherwise
	if (alpha)
	{
		noalpha = true;
		for (i=0 ; i<s ; i++)
		{
			if (data[i] == 255)
				noalpha = false;
		}

		if (alpha && noalpha)
			alpha = false;
	}
	for (scaled_width = 1 ; scaled_width < width ; scaled_width<<=1)
		;
	for (scaled_height = 1 ; scaled_height < height ; scaled_height<<=1)
		;

	scaled_width >>= (int)gl_picmip.value;
	scaled_height >>= (int)gl_picmip.value;

	if (scaled_width > gl_max_size.value)
		scaled_width = gl_max_size.value;
	if (scaled_height > gl_max_size.value)
		scaled_height = gl_max_size.value;

	if (scaled_width * scaled_height > sizeof(scaled))
		Sys_Error ("GL_LoadTexture: too big");

	samples = 1; // alpha ? gl_alpha_format : gl_solid_format;

	texels += scaled_width * scaled_height;

	if (scaled_width == width && scaled_height == height)
	{
		if (!mipmap)
		{
			glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX , GL_UNSIGNED_BYTE, data);
			goto done;
		}
		memcpy (scaled, data, width*height);
	}
	else
		GL_Resample8BitTexture (data, width, height, scaled, scaled_width, scaled_height);

	glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, scaled);
	if (mipmap)
	{
		int		miplevel;

		miplevel = 0;
		while (scaled_width > 1 || scaled_height > 1)
		{
			GL_MipMap8Bit ((byte *)scaled, scaled_width, scaled_height);
			scaled_width >>= 1;
			scaled_height >>= 1;
			if (scaled_width < 1)
				scaled_width = 1;
			if (scaled_height < 1)
				scaled_height = 1;
			miplevel++;
			glTexImage2D (GL_TEXTURE_2D, miplevel, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, scaled);
		}
	}
done: ;


	if (mipmap)
	{
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
	}
	else
	{
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
	}
}*/
// jkrige - no 8bit palette extensions

// jkrige - doubled textures
//static	unsigned	trans[640 * 480]; 	// jkrige - FIXME, temporary
static	unsigned	trans[2048 * 2048];
// jkrige - doubled textures

/*
===============
GL_Upload8
===============
*/
void GL_Upload8 (byte *data, int width, int height, qboolean mipmap, qboolean alpha)
{
	int			i, s;
	qboolean	noalpha;
	int			p;
	//static	unsigned	trans[640*480];		// FIXME, temporary


	// jkrige - doubled textures
	byte *dtdata;
	int x, y;

	if (mipmap)
	{
		width *= 2;
		height *= 2;

		s = width * height;
		dtdata = malloc(s);

		for (y = 0; y < height / 2; y++)
		{
			for (x = 0; x < width / 2; x++)
			{
				dtdata[(y * (width * 2)) + (x * 2) + 0] = data[(y * (width / 2)) + x];
				dtdata[(y * (width * 2)) + (x * 2) + 1] = data[(y * (width / 2)) + x];

				dtdata[(y * (width * 2)) + (x * 2) + 0 + width] = data[(y * (width / 2)) + x];
				dtdata[(y * (width * 2)) + (x * 2) + 1 + width] = data[(y * (width / 2)) + x];
			}
		}
	}
	else
	{
		s = width * height;
		dtdata = data;
	}
	//s = width * height;
	// jkrige - doubled textures


	// if there are no transparent pixels, make it a 3 component
	// texture even if it was specified as otherwise
	if (alpha)
	{
		noalpha = true;
		for (i=0 ; i<s ; i++)
		{
			p = dtdata[i];
			if (p == 255)
				noalpha = false;
			trans[i] = d_8to24table[p];
		}

		if (alpha && noalpha)
			alpha = false;
	}
	else
	{
		if (s&3)
			Sys_Error ("GL_Upload8: s&3");
		for (i=0 ; i<s ; i+=4)
		{
			trans[i] = d_8to24table[dtdata[i]];
			trans[i+1] = d_8to24table[dtdata[i+1]];
			trans[i+2] = d_8to24table[dtdata[i+2]];
			trans[i+3] = d_8to24table[dtdata[i+3]];
		}
	}

	// jkrige - doubled textures
	if (mipmap && dtdata)
		free(dtdata);
	// jkrige - doubled textures


	// jkrige - no 8bit palette extensions
 	/*if (VID_Is8bit() && !alpha && (data!=scrap_texels[0])) {
 		GL_Upload8_EXT (data, width, height, mipmap, alpha);
 		return;
	}*/
	// jkrige - no 8bit palette extensions

	GL_Upload32 (trans, width, height, mipmap, alpha);
}


/*
================
GL_LoadTexture
================
*/
// jkrige - memleak & texture mismatch
/*int GL_LoadTexture (char *identifier, int width, int height, byte *data, qboolean mipmap, qboolean alpha)
{
	qboolean	noalpha;
	int			i, p, s;
	gltexture_t	*glt;

	// see if the texture is allready present
	if (identifier[0])
	{
		for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
		{
			if (!strcmp (identifier, glt->identifier))
			{
				if (width != glt->width || height != glt->height)
					Sys_Error ("GL_LoadTexture: cache mismatch");
				return gltextures[i].texnum;
			}
		}
	}
	//else { // jkrige - threewave?
		glt = &gltextures[numgltextures];
		numgltextures++;
	//}

	strcpy (glt->identifier, identifier);
	glt->texnum = texture_extension_number;
	glt->width = width;
	glt->height = height;
	glt->mipmap = mipmap;

	GL_Bind(texture_extension_number );

	GL_Upload8 (data, width, height, mipmap, alpha);

	texture_extension_number++;

	return texture_extension_number-1;
}*/

int lhcsumtable[256];
int GL_LoadTexture (char *identifier, char *textype, int width, int height, byte *data, qboolean mipmap, qboolean alpha, int bytesperpixel)
{
#ifdef UQ_GLDEBUG
	//qboolean	noalpha;
	int			i, /*p,*/ s, lhcsum;
	gltexture_t	*glt;


	// jkrige - fullbright pixels
	byte *data2 = data;
	// jkrige - fullbright pixels


	// occurances. well this isn't exactly a checksum, it's better than that but
	// not following any standards.
	lhcsum = 0;
	s = width*height*bytesperpixel;
	//s = width*height;
	for (i = 0;i < 256;i++) lhcsumtable[i] = i + 1;
	for (i = 0;i < s;i++) lhcsum += (lhcsumtable[data[i] & 255]++);

	// see if the texture is allready present
	if (identifier[0])
	{
		for (i=0, glt=gltextures ; i < numgltextures ; i++, glt++)
		{
			if (!strcmp (identifier, glt->identifier))
			{
				if (lhcsum != glt->lhcsum || width != glt->width || height != glt->height)
				{
					Con_DPrintf("GL_LoadTexture: cache mismatch\n");
					goto GL_LoadTexture_setup;
				}
				return glt->texnum;
			}
		}
	}
	// whoever at id or threewave must've been half asleep...
	glt = &gltextures[numgltextures];
	numgltextures++;

	strcpy (glt->identifier, identifier);
	glt->texnum = texture_extension_number;
	texture_extension_number++;

	GL_LoadTexture_setup:
	glt->lhcsum = lhcsum;
	glt->width = width;
	glt->height = height;
	glt->mipmap = mipmap;

	// jkrige - luma textures (reset)
	glt->tex_luma = false;
	glt->tex_luma8bit = false;
	// jkrige - luma textures (reset)

	if (!isDedicated)
	{
		GL_Bind(glt->texnum);

		//if (strcmp (textype, "bloom"))
		{
			if (bytesperpixel == 1)
			{
				GL_Upload8 (data, width, height, mipmap, alpha);
			}
			else if (bytesperpixel == 3 | bytesperpixel == 4)
			{
				if(image_alpha == 3)
					GL_Upload32 ((void *)data, width, height, mipmap, false);
				else
					GL_Upload32 ((void *)data, width, height, mipmap, true);
			}
			else
				Sys_Error("GL_LoadTexture: unknown bytes per pixel\n");
		}

		// jkrige - reset external image
		image_width = 0;
		image_height = 0;
		image_bits = 8;
		image_alpha = 3;
		// jkrige - reset external image


		// jkrige - luma textures
		if (!strcmp (textype, "texture"))
		{
			char *ch_dot = strrchr(identifier, '.');

			if (ch_dot != NULL)
			{
				char *ident;
				char ch_name[MAX_PATH];
				byte *lumadata;

				i = 0;
				ident = identifier;

				while (*identifier && *identifier != '.')
					ch_name[i++] = *identifier++;
				ch_name[i++] = 0;

				strcat(ch_name, "_luma");
				strcat(ch_name, ch_dot);
				identifier = ident;

				if ((lumadata = LoadImagePixels (ch_name, false)))
				{
					GL_Bind(JK_LUMA_TEX + glt->texnum);
					GL_Upload32((unsigned int *)lumadata, width, height, mipmap, true);
					free(lumadata);

					glt->tex_luma = true;
				}
			}
		}
		// jkrige - luma textures


		// jkrige - fullbright pixels
		if ((!strcmp(textype, "texture") || !strcmp(textype, "skin")) && bytesperpixel == 1)
		{
			// if fullbright pixels are detected a new texture will
			// be generated and it will be used asif its a luma texture
			qboolean fullbright;
			byte *fbdata;

			fbdata = malloc(width * height * 4);

			if (GL_FullbrightTexture(data, fbdata, width, height) == true)
			{
				GL_Bind(JK_LUMA_TEX + glt->texnum);
				GL_Upload32((unsigned int *)fbdata, width, height, mipmap, alpha);

				glt->tex_luma = true;
				glt->tex_luma8bit = true;
			}

			if (fbdata)
				free(fbdata);
		}
		// jkrige - fullbright pixels


		glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	}

	return glt->texnum;
#endif	// UQ_GLDEBUG
}
// jkrige - memleak & texture mismatch

/*
================
GL_LoadPicTexture
================
*/
int GL_LoadPicTexture (qpic_t *pic)
{
	int i;

	// jkrige - external texture loading
	//i = GL_LoadTexture ("", pic->width, pic->height, pic->data, false, true);
	i = GL_LoadTexture ("", "", pic->width, pic->height, pic->data, false, true, 1);
	// jkrige - external texture loading

	// jkrige - scale2d
	//glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	//glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	// jkrige - scale2d

	return i;
}




// jkrige - external texture loading
int		image_width;
int		image_height;
int		image_bits;
int		image_alpha;

byte Convert24to8(byte *palette, byte Red, byte Green, byte Blue)
{
	int i;

	for(i=0; i<768; i+=3)
	{
		if(palette[i] == Red && palette[i+1] == Green && palette[i+2] == Blue)
			return 255-(i/3);
	}

	return 0;
}

/*
========
LoadJPG
========
*/
byte *LoadJPG ( const char *filename)
{
  /* This struct contains the JPEG decompression parameters and pointers to
   * working space (which is allocated as needed by the JPEG library).
   */
  struct jpeg_decompress_struct cinfo;
  /* We use our private extension JPEG error handler.
   * Note that this struct must live as long as the main JPEG parameter
   * struct, to avoid dangling-pointer problems.
   */
  /* This struct represents a JPEG error handler.  It is declared separately
   * because applications often want to supply a specialized error handler
   * (see the second half of this file for an example).  But here we just
   * take the easy way out and use the standard error handler, which will
   * print a message on stderr and call exit() if compression fails.
   * Note that this struct must live as long as the main JPEG parameter
   * struct, to avoid dangling-pointer problems.
   */
	struct jpeg_error_mgr jerr;
  /* More stuff */
	JSAMPARRAY buffer;		/* Output row buffer */
	int row_stride;		/* physical row width in output buffer */
	unsigned char *out;
	byte	*fbuffer;
	byte  *bbuf;

  /* In this example we want to open the input file before doing anything else,
   * so that the setjmp() error recovery below can assume the file is open.
   * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
   * requires it in order to read binary files.
   */


	// jkrige - pk3 file support
	int len;
	FILE	*f;
	byte	*pic;

	//
	// load the file
	//
	len = COM_FOpenFile (( char * )filename, &f);
	if(len < 1)
		return NULL;

	fbuffer = COM_FReadFile(f, len);
	if (!fbuffer)
		return NULL;
	
	pic = NULL;
	// jkrige - pk3 file support


  /* Step 1: allocate and initialize JPEG decompression object */

  /* We have to set up the error handler first, in case the initialization
   * step fails.  (Unlikely, but it could happen if you are out of memory.)
   * This routine fills in the contents of struct jerr, and returns jerr's
   * address which we place into the link field in cinfo.
   */
	cinfo.err = jpeg_std_error(&jerr);

  /* Now we can initialize the JPEG decompression object. */
	jpeg_create_decompress(&cinfo);

  /* Step 2: specify data source (eg, a file) */

	jpeg_stdio_src(&cinfo, fbuffer);

  /* Step 3: read file parameters with jpeg_read_header() */

	(void) jpeg_read_header(&cinfo, TRUE);
  /* We can ignore the return value from jpeg_read_header since
   *   (a) suspension is not possible with the stdio data source, and
   *   (b) we passed TRUE to reject a tables-only JPEG file as an error.
   * See libjpeg.doc for more info.
   */

  /* Step 4: set parameters for decompression */

  /* In this example, we don't need to change any of the defaults set by
   * jpeg_read_header(), so we do nothing here.
   */

  /* Step 5: Start decompressor */

	(void) jpeg_start_decompress(&cinfo);
  /* We can ignore the return value since suspension is not possible
   * with the stdio data source.
   */

  /* We may need to do some setup of our own at this point before reading
   * the data.  After jpeg_start_decompress() we have the correct scaled
   * output image dimensions available, as well as the output colormap
   * if we asked for color quantization.
   * In this example, we need to make an output work buffer of the right size.
   */ 
  /* JSAMPLEs per row in output buffer */
	row_stride = cinfo.output_width * cinfo.output_components;

	out = malloc(cinfo.output_width*cinfo.output_height*cinfo.output_components);

	// jkrige
	// *pic = out;
	// *width = cinfo.output_width;
	// *height = cinfo.output_height;
	pic = out;
	image_width = cinfo.image_width;
	image_height = cinfo.image_height;
	// jkrige

  /* Step 6: while (scan lines remain to be read) */
  /*           jpeg_read_scanlines(...); */

  /* Here we use the library's state variable cinfo.output_scanline as the
   * loop counter, so that we don't have to keep track ourselves.
   */
	while (cinfo.output_scanline < cinfo.output_height)
	{
    /* jpeg_read_scanlines expects an array of pointers to scanlines.
     * Here the array is only one element long, but you could ask for
     * more than one scanline at a time if that's more convenient.
     */
		bbuf = ((out+(row_stride*cinfo.output_scanline)));
		buffer = &bbuf;
		(void) jpeg_read_scanlines(&cinfo, buffer, 1);
	}

  // clear all the alphas to 255
	{
		int	i, j;
		byte	*buf;

		buf = pic;

		j = cinfo.output_width * cinfo.output_height * 4;
		for ( i = 3 ; i < j ; i+=4 )
		{
			buf[i] = 255;
		}
  }

  /* Step 7: Finish decompression */

	(void) jpeg_finish_decompress(&cinfo);
  /* We can ignore the return value since suspension is not possible
   * with the stdio data source.
   */

  /* Step 8: Release JPEG decompression object */

  /* This is an important step since it will release a good deal of memory. */
	jpeg_destroy_decompress(&cinfo);

  /* After finish_decompress, we can close the input file.
   * Here we postpone it until after no more JPEG errors are possible,
   * so as to simplify the setjmp error logic above.  (Actually, I don't
   * think that jpeg_destroy can do an error exit, but why assume anything...)
   */
	
	image_bits = 32;
	image_alpha = 3;

	free (fbuffer);

  /* At this point you may want to check to see whether any corrupt-data
   * warnings occurred (test whether jerr.pub.num_warnings is nonzero).
   */

  /* And we're done! */
	return pic;
}


/*
=============
TARGA LOADING
=============
*/

typedef struct _TargaHeader 
{
	unsigned char 	id_length, colormap_type, image_type;
	unsigned short	colormap_index, colormap_length;
	unsigned char	colormap_size;
	unsigned short	x_origin, y_origin, width, height;
	unsigned char	pixel_size, attributes;
} TargaHeader;


TargaHeader		targa_header;

int fgetLittleShort (FILE *f)
{
	byte	b1, b2;

	b1 = fgetc(f);
	b2 = fgetc(f);

	return (short)(b1 + b2*256);
}

int fgetLittleLong (FILE *f)
{
	byte	b1, b2, b3, b4;

	b1 = fgetc(f);
	b2 = fgetc(f);
	b3 = fgetc(f);
	b4 = fgetc(f);

	return b1 + (b2<<8) + (b3<<16) + (b4<<24);
}


/*
========
LoadTGA
========
*/
byte *LoadTGA ( const char *name)
{
	int		columns, rows, numPixels;
	byte	*pixbuf;
	int		row, column;
	byte	*buf_p;
	byte	*buffer;
	TargaHeader	targa_header;
	byte		*targa_rgba;

	// jkrige - bitsperpixel check
	int i;
	// jkrige - bitsperpixel check


	// jkrige - pk3 file support
	int len;
	FILE	*f;
	byte	*pic;
	// jkrige - pk3 file support


	// *pic = NULL; // jkrige
	pic = NULL;
	buffer = NULL;

	//
	// load the file
	//
	len = COM_FOpenFile (( char * )name, &f);
	if(len < 1)
		return NULL;

	buffer = COM_FReadFile(f, len);
	

	if (!buffer)
		return NULL;

	buf_p = buffer;

	targa_header.id_length = *buf_p++;
	targa_header.colormap_type = *buf_p++;
	targa_header.image_type = *buf_p++;
	
	targa_header.colormap_index = LittleShort ( *(short *)buf_p );
	buf_p += 2;
	targa_header.colormap_length = LittleShort ( *(short *)buf_p );
	buf_p += 2;
	targa_header.colormap_size = *buf_p++;
	targa_header.x_origin = LittleShort ( *(short *)buf_p );
	buf_p += 2;
	targa_header.y_origin = LittleShort ( *(short *)buf_p );
	buf_p += 2;
	targa_header.width = LittleShort ( *(short *)buf_p );
	buf_p += 2;
	targa_header.height = LittleShort ( *(short *)buf_p );
	buf_p += 2;
	targa_header.pixel_size = *buf_p++;
	targa_header.attributes = *buf_p++;

	if (targa_header.image_type!=2 && targa_header.image_type!=10 && targa_header.image_type != 3 ) 
	{
		Sys_Error ("LoadTGA: Only type 2 (RGB), 3 (gray), and 10 (RGB) TGA images supported\n");
	}

	if ( targa_header.colormap_type != 0 )
	{
		Sys_Error ("LoadTGA: colormaps not supported\n" );
	}

	if ( ( targa_header.pixel_size != 32 && targa_header.pixel_size != 24 ) && targa_header.image_type != 3 )
	{
		Sys_Error ("LoadTGA: Only 32 or 24 bit images supported (no colormaps)\n");
	}

	columns = targa_header.width;
	rows = targa_header.height;
	numPixels = columns * rows;

	// jkrige
	/*if (width)
		*width = columns;
	if (height)
		*height = rows;*/
	image_width = columns;
	image_height = rows;
	// jkrige

	targa_rgba = malloc (numPixels*4);
	// *pic = targa_rgba; // jkrige
	pic = targa_rgba;

	if (targa_header.id_length != 0)
		buf_p += targa_header.id_length;  // skip TARGA image comment
	
	if ( targa_header.image_type == 2 || targa_header.image_type == 3 )
	{ 
		// Uncompressed RGB or gray scale image
		for(row=rows-1; row>=0; row--) 
		{
			pixbuf = targa_rgba + row*columns*4;
			for(column=0; column<columns; column++) 
			{
				unsigned char red,green,blue,alphabyte;
				switch (targa_header.pixel_size) 
				{
					
				case 8:
					blue = *buf_p++;
					green = blue;
					red = blue;
					*pixbuf++ = red;
					*pixbuf++ = green;
					*pixbuf++ = blue;
					*pixbuf++ = 255;
					break;

				case 24:
					blue = *buf_p++;
					green = *buf_p++;
					red = *buf_p++;
					*pixbuf++ = red;
					*pixbuf++ = green;
					*pixbuf++ = blue;
					*pixbuf++ = 255;
					break;
				case 32:
					blue = *buf_p++;
					green = *buf_p++;
					red = *buf_p++;
					alphabyte = *buf_p++;
					*pixbuf++ = red;
					*pixbuf++ = green;
					*pixbuf++ = blue;
					*pixbuf++ = alphabyte;
					break;
				default:
					Sys_Error("LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
					break;
				}
			}
		}
	}
	else if (targa_header.image_type==10)
	{   // Runlength encoded RGB images
		unsigned char red,green,blue,alphabyte,packetHeader,packetSize,j;

		red = 0;
		green = 0;
		blue = 0;
		alphabyte = 0xff;

		for(row=rows-1; row>=0; row--)
		{
			pixbuf = targa_rgba + row*columns*4;
			for(column=0; column<columns; )
			{
				packetHeader= *buf_p++;
				packetSize = 1 + (packetHeader & 0x7f);
				if (packetHeader & 0x80)
				{        // run-length packet
					switch (targa_header.pixel_size)
					{
						case 24:
								blue = *buf_p++;
								green = *buf_p++;
								red = *buf_p++;
								alphabyte = 255;
								break;
						case 32:
								blue = *buf_p++;
								green = *buf_p++;
								red = *buf_p++;
								alphabyte = *buf_p++;
								break;
						default:
							Sys_Error("LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
							break;
					}
	
					for(j=0;j<packetSize;j++)
					{
						*pixbuf++=red;
						*pixbuf++=green;
						*pixbuf++=blue;
						*pixbuf++=alphabyte;
						column++;
						if (column==columns)
						{ // run spans across rows
							column=0;
							if (row>0)
								row--;
							else
								goto breakOut;
							pixbuf = targa_rgba + row*columns*4;
						}
					}
				}
				else
				{                            // non run-length packet
					for(j=0;j<packetSize;j++)
					{
						switch (targa_header.pixel_size)
						{
							case 24:
									blue = *buf_p++;
									green = *buf_p++;
									red = *buf_p++;
									*pixbuf++ = red;
									*pixbuf++ = green;
									*pixbuf++ = blue;
									*pixbuf++ = 255;
									break;
							case 32:
									blue = *buf_p++;
									green = *buf_p++;
									red = *buf_p++;
									alphabyte = *buf_p++;
									*pixbuf++ = red;
									*pixbuf++ = green;
									*pixbuf++ = blue;
									*pixbuf++ = alphabyte;
									break;
							default:
								Sys_Error ("LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
								break;
						}
						column++;
						if (column==columns)
						{ // pixel packet run spans across rows
							column=0;
							if (row>0)
								row--;
							else
								goto breakOut;
							pixbuf = targa_rgba + row*columns*4;
						}						
					}
				}
			}
			breakOut:;
		}
	}

//#if 0 
  // TTimo: this is the chunk of code to ensure a behavior that meets TGA specs 
  // bk0101024 - fix from Leonardo
  // bit 5 set => top-down
  if (targa_header.attributes & 0x20)
  {
    unsigned char *flip = (unsigned char*)malloc (columns*4);
    unsigned char *src, *dst;

    for (row = 0; row < rows/2; row++)
	{
      src = targa_rgba + row * 4 * columns;
      dst = targa_rgba + (rows - row - 1) * 4 * columns;

      memcpy (flip, src, columns*4);
      memcpy (src, dst, columns*4);
      memcpy (dst, flip, columns*4);
    }
    free (flip);
  }
//#endif
  // instead we just print a warning
  //if (targa_header.attributes & 0x20)
  //{
  //  Con_Printf("WARNING: '%s' TGA file header declares top-down image, ignoring\n", name);
  //}
  

  // jkrige - bitsperpixel check
  image_bits = 32;
  image_alpha = gl_solid_format;
  for (i = 0;i < image_width*image_height;i++)
  {
	  if (targa_rgba[i*4+3] < 255)
	  {
		  image_alpha = gl_alpha_format;
		  break;
	  }
  }
  // jkrige - bitsperpixel check
  
  
  free (buffer);

  return pic;
}

byte* LoadImagePixels (char* filename, qboolean complain)
{
	char	basename[128], name[128];
	byte	*data;

	COM_StripExtension(filename, basename); // strip the extension to allow more filetypes

	sprintf (name, "%s.tga", basename);
	data = LoadTGA(name);
	if(data)
		return data;

	sprintf (name, "%s.jpg", basename);
	data = LoadJPG(name);
	if(data)
		return data;

	if (complain)
		Con_Printf ("Couldn't load %s\n", name);

	return NULL;
}

int LoadTextureImage (char* filename, char *textype, int matchwidth, int matchheight, qboolean complain, qboolean mipmap)
{
	int texnum;
	int	i;
	qboolean	alpha;
	byte *data;

	if (!(data = LoadImagePixels (filename, complain)))
		return 0;

	if(image_alpha == 4)
		alpha = true;
	else
		alpha = false;

	if(image_bits != 32)
		texnum = GL_LoadTexture (filename, textype, image_width, image_height, data, mipmap, true, 1);
	else
		texnum = GL_LoadTexture (filename, textype, image_width, image_height, data, mipmap, alpha, image_alpha);

	if (data)
		free(data);

	return texnum;
}
// jkrige - external texture loading








// jkrige - remove multitexture
/*static GLenum oldtarget = TEXTURE0_SGIS;

void GL_SelectTexture (GLenum target) 
{
	if (!gl_mtexable)
		return;
	qglSelectTextureSGIS(target);
	if (target == oldtarget) 
		return;
	cnttextures[oldtarget-TEXTURE0_SGIS] = currenttexture;
	currenttexture = cnttextures[target-TEXTURE0_SGIS];
	oldtarget = target;
}*/
// jkrige - remove multitexture