quake/src/WinQuake/gl_vidlinux.cpp - platform/external/quake - Git at Google

 /*
 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.

 */
 #include <termios.h>
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <sys/vt.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <signal.h>

 #include <asm/io.h>
 #include <dlfcn.h>

 /*#include "vga.h" */
 #include "vgakeyboard.h"
 #include "vgamouse.h"

 #include "quakedef.h"
 #include "GL/fxmesa.h"

 #define WARP_WIDTH              320
 #define WARP_HEIGHT             200

 static fxMesaContext fc = NULL;
 #define stringify(m) { #m, m }

 unsigned short	d_8to16table[256];
 unsigned	d_8to24table[256];
 unsigned char d_15to8table[65536];

 int num_shades=32;

 struct
 {
 	char *name;
 	int num;
 } mice[] =
 {
 	stringify(MOUSE_MICROSOFT),
 	stringify(MOUSE_MOUSESYSTEMS),
 	stringify(MOUSE_MMSERIES),
 	stringify(MOUSE_LOGITECH),
 	stringify(MOUSE_BUSMOUSE),
 	stringify(MOUSE_PS2),
 };

 static unsigned char scantokey[128];

 int num_mice = sizeof (mice) / sizeof(mice[0]);

 int	d_con_indirect = 0;

 int		svgalib_inited=0;
 int		UseMouse = 1;
 int		UseKeyboard = 1;

 int		mouserate = MOUSE_DEFAULTSAMPLERATE;

 cvar_t		vid_mode = {"vid_mode","5",false};
 cvar_t		vid_redrawfull = {"vid_redrawfull","0",false};
 cvar_t		vid_waitforrefresh = {"vid_waitforrefresh","0",true};

 char	*framebuffer_ptr;

 cvar_t  mouse_button_commands[3] =
 {
     {"mouse1","+attack"},
     {"mouse2","+strafe"},
     {"mouse3","+forward"},
 };

 int     mouse_buttons;
 int     mouse_buttonstate;
 int     mouse_oldbuttonstate;
 float   mouse_x, mouse_y;
 float	old_mouse_x, old_mouse_y;
 int		mx, my;

 cvar_t	m_filter = {"m_filter","1"};

 int scr_width, scr_height;

 /*-----------------------------------------------------------------------*/

 //int		texture_mode = GL_NEAREST;
 //int		texture_mode = GL_NEAREST_MIPMAP_NEAREST;
 //int		texture_mode = GL_NEAREST_MIPMAP_LINEAR;
 int		texture_mode = GL_LINEAR;
 //int		texture_mode = GL_LINEAR_MIPMAP_NEAREST;
 //int		texture_mode = GL_LINEAR_MIPMAP_LINEAR;

 int		texture_extension_number = 1;

 float		gldepthmin, gldepthmax;

 cvar_t	gl_ztrick = {"gl_ztrick","1"};

 const char *gl_vendor;
 const char *gl_renderer;
 const char *gl_version;
 const char *gl_extensions;

 void (*qgl3DfxSetPaletteEXT) (GLuint *);
 void (*qglColorTableEXT) (int, int, int, int, int, const void *);

 static float vid_gamma = 1.0;

 qboolean is8bit = false;
 qboolean isPermedia = false;
 qboolean gl_mtexable = false;

 /*-----------------------------------------------------------------------*/
 void D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
 {
 }

 void D_EndDirectRect (int x, int y, int width, int height)
 {
 }

 int matchmouse(int mouse, char *name)
 {
 	int i;
 	for (i=0 ; i<num_mice ; i++)
 		if (!strcmp(mice[i].name, name))
 			return i;
 	return mouse;
 }

 #if 0

 void vtswitch(int newconsole)
 {

 	int fd;
 	struct vt_stat x;

 // switch consoles and wait until reactivated
 	fd = open("/dev/console", O_RDONLY);
 	ioctl(fd, VT_GETSTATE, &x);
 	ioctl(fd, VT_ACTIVATE, newconsole);
 	ioctl(fd, VT_WAITACTIVE, x.v_active);
 	close(fd);

 }

 #endif

 void keyhandler(int scancode, int state)
 {

 	int sc;

 	sc = scancode & 0x7f;

 	Key_Event(scantokey[sc], state == KEY_EVENTPRESS);

 }

 void VID_Shutdown(void)
 {
 	if (!fc)
 		return;

 	fxMesaDestroyContext(fc);

 	if (UseKeyboard)
 		keyboard_close();
 }

 void signal_handler(int sig)
 {
 	printf("Received signal %d, exiting...\n", sig);
 	Sys_Quit();
 	exit(0);
 }

 void InitSig(void)
 {
 	signal(SIGHUP, signal_handler);
 	signal(SIGINT, signal_handler);
 	signal(SIGQUIT, signal_handler);
 	signal(SIGILL, signal_handler);
 	signal(SIGTRAP, signal_handler);
 	signal(SIGIOT, signal_handler);
 	signal(SIGBUS, signal_handler);
 	signal(SIGFPE, signal_handler);
 	signal(SIGSEGV, signal_handler);
 	signal(SIGTERM, signal_handler);
 }

 void VID_ShiftPalette(unsigned char *p)
 {
 //	VID_SetPalette(p);
 }

 void	VID_SetPalette (unsigned char *palette)
 {
 	byte	*pal;
 	unsigned r,g,b;
 	unsigned v;
 	int     r1,g1,b1;
 	int		j,k,l,m;
 	unsigned short i;
 	unsigned	*table;
 	FILE *f;
 	char s[255];
 	int dist, bestdist;
 	static qboolean palflag = false;

 //
 // 8 8 8 encoding
 //
 	pal = palette;
 	table = d_8to24table;
 	for (i=0 ; i<256 ; i++)
 	{
 		r = pal[0];
 		g = pal[1];
 		b = pal[2];
 		pal += 3;

 		v = (255<<24) + (r<<0) + (g<<8) + (b<<16);
 		*table++ = v;
 	}
 	d_8to24table[255] &= 0xffffff;	// 255 is transparent

 	// JACK: 3D distance calcs - k is last closest, l is the distance.
 	for (i=0; i < (1<<15); i++) {
 		/* Maps
 		000000000000000
 		000000000011111 = Red  = 0x1F
 		000001111100000 = Blue = 0x03E0
 		111110000000000 = Grn  = 0x7C00
 		*/
 		r = ((i & 0x1F) << 3)+4;
 		g = ((i & 0x03E0) >> 2)+4;
 		b = ((i & 0x7C00) >> 7)+4;
 		pal = (unsigned char *)d_8to24table;
 		for (v=0,k=0,bestdist=10000*10000; v<256; v++,pal+=4) {
 			r1 = (int)r - (int)pal[0];
 			g1 = (int)g - (int)pal[1];
 			b1 = (int)b - (int)pal[2];
 			dist = (r1*r1)+(g1*g1)+(b1*b1);
 			if (dist < bestdist) {
 				k=v;
 				bestdist = dist;
 			}
 		}
 		d_15to8table[i]=k;
 	}
 }

 void CheckMultiTextureExtensions(void)
 {
 	void *prjobj;

 	if (strstr(gl_extensions, "GL_SGIS_multitexture ") && !COM_CheckParm("-nomtex")) {
 		Con_Printf("Found GL_SGIS_multitexture...\n");

 		if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL) {
 			Con_Printf("Unable to open symbol list for main program.\n");
 			return;
 		}

 		qglMTexCoord2fSGIS = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
 		qglSelectTextureSGIS = (void *) dlsym(prjobj, "glSelectTextureSGIS");

 		if (qglMTexCoord2fSGIS && qglSelectTextureSGIS) {
 			Con_Printf("Multitexture extensions found.\n");
 			gl_mtexable = true;
 		} else
 			Con_Printf("Symbol not found, disabled.\n");

 		dlclose(prjobj);
 	}
 }

 /*
 ===============
 GL_Init
 ===============
 */
 void GL_Init (void)
 {
 	gl_vendor = glGetString (GL_VENDOR);
 	Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 	gl_renderer = glGetString (GL_RENDERER);
 	Con_Printf ("GL_RENDERER: %s\n", gl_renderer);

 	gl_version = glGetString (GL_VERSION);
 	Con_Printf ("GL_VERSION: %s\n", gl_version);
 	gl_extensions = glGetString (GL_EXTENSIONS);
 	Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);

 //	Con_Printf ("%s %s\n", gl_renderer, gl_version);

 	CheckMultiTextureExtensions ();

 	glClearColor (1,0,0,0);
 	glCullFace(GL_FRONT);
 	glEnable(GL_TEXTURE_2D);

 	glEnable(GL_ALPHA_TEST);
 	glAlphaFunc(GL_GREATER, 0.666);

 	glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
 	glShadeModel (GL_FLAT);

 	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
 	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

 	glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

 //	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
 }

 /*
 =================
 GL_BeginRendering

 =================
 */
 void GL_BeginRendering (int *x, int *y, int *width, int *height)
 {
 	extern cvar_t gl_clear;

 	*x = *y = 0;
 	*width = scr_width;
 	*height = scr_height;

 //    if (!wglMakeCurrent( maindc, baseRC ))
 //		Sys_Error ("wglMakeCurrent failed");

 //	glViewport (*x, *y, *width, *height);
 }


 void GL_EndRendering (void)
 {
 	glFlush();
 	fxMesaSwapBuffers();
 }

 void Init_KBD(void)
 {
 	int i;

 	if (COM_CheckParm("-nokbd")) UseKeyboard = 0;

 	if (UseKeyboard)
 	{
 		for (i=0 ; i<128 ; i++)
 			scantokey[i] = ' ';

 		scantokey[42] = K_SHIFT;
 		scantokey[54] = K_SHIFT;
 		scantokey[72] = K_UPARROW;
 		scantokey[103] = K_UPARROW;
 		scantokey[80] = K_DOWNARROW;
 		scantokey[108] = K_DOWNARROW;
 		scantokey[75] = K_LEFTARROW;
 		scantokey[105] = K_LEFTARROW;
 		scantokey[77] = K_RIGHTARROW;
 		scantokey[106] = K_RIGHTARROW;
 		scantokey[29] = K_CTRL;
 		scantokey[97] = K_CTRL;
 		scantokey[56] = K_ALT;
 		scantokey[100] = K_ALT;
 //		scantokey[58] = JK_CAPS;
 //		scantokey[69] = JK_NUM_LOCK;
 		scantokey[71] = K_HOME;
 		scantokey[73] = K_PGUP;
 		scantokey[79] = K_END;
 		scantokey[81] = K_PGDN;
 		scantokey[82] = K_INS;
 		scantokey[83] = K_DEL;
 		scantokey[1 ] = K_ESCAPE;
 		scantokey[28] = K_ENTER;
 		scantokey[15] = K_TAB;
 		scantokey[14] = K_BACKSPACE;
 		scantokey[119] = K_PAUSE;
 		scantokey[57] = ' ';

 		scantokey[102] = K_HOME;
 		scantokey[104] = K_PGUP;
 		scantokey[107] = K_END;
 		scantokey[109] = K_PGDN;
 		scantokey[110] = K_INS;
 		scantokey[111] = K_DEL;

 		scantokey[2] = '1';
 		scantokey[3] = '2';
 		scantokey[4] = '3';
 		scantokey[5] = '4';
 		scantokey[6] = '5';
 		scantokey[7] = '6';
 		scantokey[8] = '7';
 		scantokey[9] = '8';
 		scantokey[10] = '9';
 		scantokey[11] = '0';
 		scantokey[12] = '-';
 		scantokey[13] = '=';
 		scantokey[41] = '`';
 		scantokey[26] = '[';
 		scantokey[27] = ']';
 		scantokey[39] = ';';
 		scantokey[40] = '\'';
 		scantokey[51] = ',';
 		scantokey[52] = '.';
 		scantokey[53] = '/';
 		scantokey[43] = '\\';

 		scantokey[59] = K_F1;
 		scantokey[60] = K_F2;
 		scantokey[61] = K_F3;
 		scantokey[62] = K_F4;
 		scantokey[63] = K_F5;
 		scantokey[64] = K_F6;
 		scantokey[65] = K_F7;
 		scantokey[66] = K_F8;
 		scantokey[67] = K_F9;
 		scantokey[68] = K_F10;
 		scantokey[87] = K_F11;
 		scantokey[88] = K_F12;
 		scantokey[30] = 'a';
 		scantokey[48] = 'b';
 		scantokey[46] = 'c';
 		scantokey[32] = 'd';
 		scantokey[18] = 'e';
 		scantokey[33] = 'f';
 		scantokey[34] = 'g';
 		scantokey[35] = 'h';
 		scantokey[23] = 'i';
 		scantokey[36] = 'j';
 		scantokey[37] = 'k';
 		scantokey[38] = 'l';
 		scantokey[50] = 'm';
 		scantokey[49] = 'n';
 		scantokey[24] = 'o';
 		scantokey[25] = 'p';
 		scantokey[16] = 'q';
 		scantokey[19] = 'r';
 		scantokey[31] = 's';
 		scantokey[20] = 't';
 		scantokey[22] = 'u';
 		scantokey[47] = 'v';
 		scantokey[17] = 'w';
 		scantokey[45] = 'x';
 		scantokey[21] = 'y';
 		scantokey[44] = 'z';

 		scantokey[78] = '+';
 		scantokey[74] = '-';

 		if (keyboard_init())
 			Sys_Error("keyboard_init() failed");
 		keyboard_seteventhandler(keyhandler);
 	}
 }

 #define NUM_RESOLUTIONS 16

 static int resolutions[NUM_RESOLUTIONS][3]={
 	320,200,  GR_RESOLUTION_320x200,
 	320,240,  GR_RESOLUTION_320x240,
 	400,256,  GR_RESOLUTION_400x256,
 	400,300,  GR_RESOLUTION_400x300,
 	512,384,  GR_RESOLUTION_512x384,
 	640,200,  GR_RESOLUTION_640x200,
 	640,350,  GR_RESOLUTION_640x350,
 	640,400,  GR_RESOLUTION_640x400,
 	640,480,  GR_RESOLUTION_640x480,
 	800,600,  GR_RESOLUTION_800x600,
 	960,720,  GR_RESOLUTION_960x720,
 	856,480,  GR_RESOLUTION_856x480,
 	512,256,  GR_RESOLUTION_512x256,
 	1024,768, GR_RESOLUTION_1024x768,
 	1280,1024,GR_RESOLUTION_1280x1024,
 	1600,1200,GR_RESOLUTION_1600x1200
 };

 int findres(int *width, int *height)
 {
 	int i;

 	for(i=0;i<NUM_RESOLUTIONS;i++)
 		if((*width<=resolutions[i][0]) && (*height<=resolutions[i][1])) {
 			*width = resolutions[i][0];
 			*height = resolutions[i][1];
 			return resolutions[i][2];
 		}

 	*width = 640;
 	*height = 480;
 	return GR_RESOLUTION_640x480;
 }

 qboolean VID_Is8bit(void)
 {
 	return is8bit;
 }

 void VID_Init8bitPalette(void)
 {
 	// Check for 8bit Extensions and initialize them.
 	int i;
 	void *prjobj;

 	if (COM_CheckParm("-no8bit"))
 		return;

 	if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL) {
 		Con_Printf("Unable to open symbol list for main program.\n");
 		return;
 	}

 	if (strstr(gl_extensions, "3DFX_set_global_palette") &&
 		(qgl3DfxSetPaletteEXT = dlsym(prjobj, "gl3DfxSetPaletteEXT")) != NULL) {
 		GLubyte table[256][4];
 		char *oldpal;

 		Con_SafePrintf("... Using 3DFX_set_global_palette\n");
 		glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
 		oldpal = (char *) d_8to24table; //d_8to24table3dfx;
 		for (i=0;i<256;i++) {
 			table[i][2] = *oldpal++;
 			table[i][1] = *oldpal++;
 			table[i][0] = *oldpal++;
 			table[i][3] = 255;
 			oldpal++;
 		}
 		qgl3DfxSetPaletteEXT((GLuint *)table);
 		is8bit = true;

 	} else if (strstr(gl_extensions, "GL_EXT_shared_texture_palette") &&
 		(qglColorTableEXT = dlsym(prjobj, "glColorTableEXT")) != NULL) {
 		char thePalette[256*3];
 		char *oldPalette, *newPalette;

 		Con_SafePrintf("... Using GL_EXT_shared_texture_palette\n");
 		glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
 		oldPalette = (char *) d_8to24table; //d_8to24table3dfx;
 		newPalette = thePalette;
 		for (i=0;i<256;i++) {
 			*newPalette++ = *oldPalette++;
 			*newPalette++ = *oldPalette++;
 			*newPalette++ = *oldPalette++;
 			oldPalette++;
 		}
 		qglColorTableEXT(GL_SHARED_TEXTURE_PALETTE_EXT, GL_RGB, 256, GL_RGB, GL_UNSIGNED_BYTE, (void *) thePalette);
 		is8bit = true;

 	}

 	dlclose(prjobj);
 }

 static void Check_Gamma (unsigned char *pal)
 {
 	float	f, inf;
 	unsigned char	palette[768];
 	int		i;

 	if ((i = COM_CheckParm("-gamma")) == 0) {
 		if ((gl_renderer && strstr(gl_renderer, "Voodoo")) ||
 			(gl_vendor && strstr(gl_vendor, "3Dfx")))
 			vid_gamma = 1;
 		else
 			vid_gamma = 0.7; // default to 0.7 on non-3dfx hardware
 	} else
 		vid_gamma = Q_atof(com_argv[i+1]);

 	for (i=0 ; i<768 ; i++)
 	{
 		f = pow ( (pal[i]+1)/256.0 , vid_gamma );
 		inf = f*255 + 0.5;
 		if (inf < 0)
 			inf = 0;
 		if (inf > 255)
 			inf = 255;
 		palette[i] = inf;
 	}

 	memcpy (pal, palette, sizeof(palette));
 }

 void VID_Init(unsigned char *palette)
 {
 	int i;
 	GLint attribs[32];
 	char	gldir[MAX_OSPATH];
 	int width = 640, height = 480;

 	Init_KBD();

 	Cvar_RegisterVariable (&vid_mode);
 	Cvar_RegisterVariable (&vid_redrawfull);
 	Cvar_RegisterVariable (&vid_waitforrefresh);
 	Cvar_RegisterVariable (&gl_ztrick);

 	vid.maxwarpwidth = WARP_WIDTH;
 	vid.maxwarpheight = WARP_HEIGHT;
 	vid.colormap = host_colormap;
 	vid.fullbright = 256 - LittleLong (*((int *)vid.colormap + 2048));

 // interpret command-line params

 // set vid parameters
 	attribs[0] = FXMESA_DOUBLEBUFFER;
 	attribs[1] = FXMESA_ALPHA_SIZE;
 	attribs[2] = 1;
 	attribs[3] = FXMESA_DEPTH_SIZE;
 	attribs[4] = 1;
 	attribs[5] = FXMESA_NONE;

 	if ((i = COM_CheckParm("-width")) != 0)
 		width = atoi(com_argv[i+1]);
 	if ((i = COM_CheckParm("-height")) != 0)
 		height = atoi(com_argv[i+1]);

 	if ((i = COM_CheckParm("-conwidth")) != 0)
 		vid.conwidth = Q_atoi(com_argv[i+1]);
 	else
 		vid.conwidth = 640;

 	vid.conwidth &= 0xfff8; // make it a multiple of eight

 	if (vid.conwidth < 320)
 		vid.conwidth = 320;

 	// pick a conheight that matches with correct aspect
 	vid.conheight = vid.conwidth*3 / 4;

 	if ((i = COM_CheckParm("-conheight")) != 0)
 		vid.conheight = Q_atoi(com_argv[i+1]);
 	if (vid.conheight < 200)
 		vid.conheight = 200;

 	fc = fxMesaCreateContext(0, findres(&width, &height), GR_REFRESH_75Hz,
 		attribs);
 	if (!fc)
 		Sys_Error("Unable to create 3DFX context.\n");

 	InitSig(); // trap evil signals

 	scr_width = width;
 	scr_height = height;

 	fxMesaMakeCurrent(fc);

 	if (vid.conheight > height)
 		vid.conheight = height;
 	if (vid.conwidth > width)
 		vid.conwidth = width;
 	vid.width = vid.conwidth;
 	vid.height = vid.conheight;

 	vid.aspect = ((float)vid.height / (float)vid.width) *
 				(320.0 / 240.0);
 	vid.numpages = 2;

 	GL_Init();

 	sprintf (gldir, "%s/glquake", com_gamedir);
 	Sys_mkdir (gldir);

 	Check_Gamma(palette);
 	VID_SetPalette(palette);

 	// Check for 3DFX Extensions and initialize them.
 	VID_Init8bitPalette();

 	Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);

 	vid.recalc_refdef = 1;				// force a surface cache flush
 }

 void Sys_SendKeyEvents(void)
 {
 	if (UseKeyboard)
 		while (keyboard_update());
 }

 void Force_CenterView_f (void)
 {
 	cl.viewangles[PITCH] = 0;
 }


 void mousehandler(int buttonstate, int dx, int dy)
 {
 	mouse_buttonstate = buttonstate;
 	mx += dx;
 	my += dy;
 }

 void IN_Init(void)
 {

 	int mtype;
 	char *mousedev;
 	int mouserate;

 	if (UseMouse)
 	{

 		Cvar_RegisterVariable (&mouse_button_commands[0]);
 		Cvar_RegisterVariable (&mouse_button_commands[1]);
 		Cvar_RegisterVariable (&mouse_button_commands[2]);
 		Cmd_AddCommand ("force_centerview", Force_CenterView_f);

 		mouse_buttons = 3;

 		mtype = vga_getmousetype();

 		mousedev = "/dev/mouse";
 		if (getenv("MOUSEDEV")) mousedev = getenv("MOUSEDEV");
 		if (COM_CheckParm("-mdev"))
 			mousedev = com_argv[COM_CheckParm("-mdev")+1];

 		mouserate = 1200;
 		if (getenv("MOUSERATE")) mouserate = atoi(getenv("MOUSERATE"));
 		if (COM_CheckParm("-mrate"))
 			mouserate = atoi(com_argv[COM_CheckParm("-mrate")+1]);

 		if (mouse_init(mousedev, mtype, mouserate))
 		{
 			Con_Printf("No mouse found\n");
 			UseMouse = 0;
 		}
 		else
 			mouse_seteventhandler(mousehandler);

 	}

 }

 void IN_Shutdown(void)
 {
 	if (UseMouse)
 		mouse_close();
 }

 /*
 ===========
 IN_Commands
 ===========
 */
 void IN_Commands (void)
 {
 	if (UseMouse && cls.state != ca_dedicated)
 	{
 		// poll mouse values
 		while (mouse_update())
 			;

 		// perform button actions
 		if ((mouse_buttonstate & MOUSE_LEFTBUTTON) &&
 			!(mouse_oldbuttonstate & MOUSE_LEFTBUTTON))
 			Key_Event (K_MOUSE1, true);
 		else if (!(mouse_buttonstate & MOUSE_LEFTBUTTON) &&
 			(mouse_oldbuttonstate & MOUSE_LEFTBUTTON))
 			Key_Event (K_MOUSE1, false);

 		if ((mouse_buttonstate & MOUSE_RIGHTBUTTON) &&
 			!(mouse_oldbuttonstate & MOUSE_RIGHTBUTTON))
 			Key_Event (K_MOUSE2, true);
 		else if (!(mouse_buttonstate & MOUSE_RIGHTBUTTON) &&
 			(mouse_oldbuttonstate & MOUSE_RIGHTBUTTON))
 			Key_Event (K_MOUSE2, false);

 		if ((mouse_buttonstate & MOUSE_MIDDLEBUTTON) &&
 			!(mouse_oldbuttonstate & MOUSE_MIDDLEBUTTON))
 			Key_Event (K_MOUSE3, true);
 		else if (!(mouse_buttonstate & MOUSE_MIDDLEBUTTON) &&
 			(mouse_oldbuttonstate & MOUSE_MIDDLEBUTTON))
 			Key_Event (K_MOUSE3, false);

 		mouse_oldbuttonstate = mouse_buttonstate;
 	}
 }

 /*
 ===========
 IN_Move
 ===========
 */
 void IN_MouseMove (usercmd_t *cmd)
 {
 	if (!UseMouse)
 		return;

 	// poll mouse values
 	while (mouse_update())
 		;

 	if (m_filter.value)
 	{
 		mouse_x = (mx + old_mouse_x) * 0.5;
 		mouse_y = (my + old_mouse_y) * 0.5;
 	}
 	else
 	{
 		mouse_x = mx;
 		mouse_y = my;
 	}
 	old_mouse_x = mx;
 	old_mouse_y = my;
 	mx = my = 0; // clear for next update

 	mouse_x *= sensitivity.value;
 	mouse_y *= sensitivity.value;

 // add mouse X/Y movement to cmd
 	if ( (in_strafe.state & 1) || (lookstrafe.value && (in_mlook.state & 1) ))
 		cmd->sidemove += m_side.value * mouse_x;
 	else
 		cl.viewangles[YAW] -= m_yaw.value * mouse_x;

 	if (in_mlook.state & 1)
 		V_StopPitchDrift ();

 	if ( (in_mlook.state & 1) && !(in_strafe.state & 1))
 	{
 		cl.viewangles[PITCH] += m_pitch.value * mouse_y;
 		if (cl.viewangles[PITCH] > 80)
 			cl.viewangles[PITCH] = 80;
 		if (cl.viewangles[PITCH] < -70)
 			cl.viewangles[PITCH] = -70;
 	}
 	else
 	{
 		if ((in_strafe.state & 1) && noclip_anglehack)
 			cmd->upmove -= m_forward.value * mouse_y;
 		else
 			cmd->forwardmove -= m_forward.value * mouse_y;
 	}
 }

 void IN_Move (usercmd_t *cmd)
 {
 	IN_MouseMove(cmd);
 }
	/*
	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.

	*/
	#include <termios.h>
	#include <sys/ioctl.h>
	#include <sys/stat.h>
	#include <sys/vt.h>
	#include <stdarg.h>
	#include <stdio.h>
	#include <signal.h>

	#include <asm/io.h>
	#include <dlfcn.h>

	/#include "vga.h" /
	#include "vgakeyboard.h"
	#include "vgamouse.h"

	#include "quakedef.h"
	#include "GL/fxmesa.h"

	#define WARP_WIDTH 320
	#define WARP_HEIGHT 200

	static fxMesaContext fc = NULL;
	#define stringify(m) { #m, m }

	unsigned short d_8to16table[256];
	unsigned d_8to24table[256];
	unsigned char d_15to8table[65536];

	int num_shades=32;

	struct
	{
	char *name;
	int num;
	} mice[] =
	{
	stringify(MOUSE_MICROSOFT),
	stringify(MOUSE_MOUSESYSTEMS),
	stringify(MOUSE_MMSERIES),
	stringify(MOUSE_LOGITECH),
	stringify(MOUSE_BUSMOUSE),
	stringify(MOUSE_PS2),
	};

	static unsigned char scantokey[128];

	int num_mice = sizeof (mice) / sizeof(mice[0]);

	int d_con_indirect = 0;

	int svgalib_inited=0;
	int UseMouse = 1;
	int UseKeyboard = 1;

	int mouserate = MOUSE_DEFAULTSAMPLERATE;

	cvar_t vid_mode = {"vid_mode","5",false};
	cvar_t vid_redrawfull = {"vid_redrawfull","0",false};
	cvar_t vid_waitforrefresh = {"vid_waitforrefresh","0",true};

	char *framebuffer_ptr;

	cvar_t mouse_button_commands[3] =
	{
	{"mouse1","+attack"},
	{"mouse2","+strafe"},
	{"mouse3","+forward"},
	};

	int mouse_buttons;
	int mouse_buttonstate;
	int mouse_oldbuttonstate;
	float mouse_x, mouse_y;
	float old_mouse_x, old_mouse_y;
	int mx, my;

	cvar_t m_filter = {"m_filter","1"};

	int scr_width, scr_height;

	/-----------------------------------------------------------------------/

	//int texture_mode = GL_NEAREST;
	//int texture_mode = GL_NEAREST_MIPMAP_NEAREST;
	//int texture_mode = GL_NEAREST_MIPMAP_LINEAR;
	int texture_mode = GL_LINEAR;
	//int texture_mode = GL_LINEAR_MIPMAP_NEAREST;
	//int texture_mode = GL_LINEAR_MIPMAP_LINEAR;

	int texture_extension_number = 1;

	float gldepthmin, gldepthmax;

	cvar_t gl_ztrick = {"gl_ztrick","1"};

	const char *gl_vendor;
	const char *gl_renderer;
	const char *gl_version;
	const char *gl_extensions;

	void (qgl3DfxSetPaletteEXT) (GLuint );
	void (qglColorTableEXT) (int, int, int, int, int, const void );

	static float vid_gamma = 1.0;

	qboolean is8bit = false;
	qboolean isPermedia = false;
	qboolean gl_mtexable = false;

	/-----------------------------------------------------------------------/
	void D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
	{
	}

	void D_EndDirectRect (int x, int y, int width, int height)
	{
	}

	int matchmouse(int mouse, char *name)
	{
	int i;
	for (i=0 ; i<num_mice ; i++)
	if (!strcmp(mice[i].name, name))
	return i;
	return mouse;
	}

	#if 0

	void vtswitch(int newconsole)
	{

	int fd;
	struct vt_stat x;

	// switch consoles and wait until reactivated
	fd = open("/dev/console", O_RDONLY);
	ioctl(fd, VT_GETSTATE, &x);
	ioctl(fd, VT_ACTIVATE, newconsole);
	ioctl(fd, VT_WAITACTIVE, x.v_active);
	close(fd);

	}

	#endif

	void keyhandler(int scancode, int state)
	{

	int sc;

	sc = scancode & 0x7f;

	Key_Event(scantokey[sc], state == KEY_EVENTPRESS);

	}

	void VID_Shutdown(void)
	{
	if (!fc)
	return;

	fxMesaDestroyContext(fc);

	if (UseKeyboard)
	keyboard_close();
	}

	void signal_handler(int sig)
	{
	printf("Received signal %d, exiting...\n", sig);
	Sys_Quit();
	exit(0);
	}

	void InitSig(void)
	{
	signal(SIGHUP, signal_handler);
	signal(SIGINT, signal_handler);
	signal(SIGQUIT, signal_handler);
	signal(SIGILL, signal_handler);
	signal(SIGTRAP, signal_handler);
	signal(SIGIOT, signal_handler);
	signal(SIGBUS, signal_handler);
	signal(SIGFPE, signal_handler);
	signal(SIGSEGV, signal_handler);
	signal(SIGTERM, signal_handler);
	}

	void VID_ShiftPalette(unsigned char *p)
	{
	// VID_SetPalette(p);
	}

	void VID_SetPalette (unsigned char *palette)
	{
	byte *pal;
	unsigned r,g,b;
	unsigned v;
	int r1,g1,b1;
	int j,k,l,m;
	unsigned short i;
	unsigned *table;
	FILE *f;
	char s[255];
	int dist, bestdist;
	static qboolean palflag = false;

	//
	// 8 8 8 encoding
	//
	pal = palette;
	table = d_8to24table;
	for (i=0 ; i<256 ; i++)
	{
	r = pal[0];
	g = pal[1];
	b = pal[2];
	pal += 3;

	v = (255<<24) + (r<<0) + (g<<8) + (b<<16);
	*table++ = v;
	}
	d_8to24table[255] &= 0xffffff; // 255 is transparent

	// JACK: 3D distance calcs - k is last closest, l is the distance.
	for (i=0; i < (1<<15); i++) {
	/* Maps
	000000000000000
	000000000011111 = Red = 0x1F
	000001111100000 = Blue = 0x03E0
	111110000000000 = Grn = 0x7C00
	*/
	r = ((i & 0x1F) << 3)+4;
	g = ((i & 0x03E0) >> 2)+4;
	b = ((i & 0x7C00) >> 7)+4;
	pal = (unsigned char *)d_8to24table;
	for (v=0,k=0,bestdist=10000*10000; v<256; v++,pal+=4) {
	r1 = (int)r - (int)pal[0];
	g1 = (int)g - (int)pal[1];
	b1 = (int)b - (int)pal[2];
	dist = (r1r1)+(g1g1)+(b1*b1);
	if (dist < bestdist) {
	k=v;
	bestdist = dist;
	}
	}
	d_15to8table[i]=k;
	}
	}

	void CheckMultiTextureExtensions(void)
	{
	void *prjobj;

	if (strstr(gl_extensions, "GL_SGIS_multitexture ") && !COM_CheckParm("-nomtex")) {
	Con_Printf("Found GL_SGIS_multitexture...\n");

	if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL) {
	Con_Printf("Unable to open symbol list for main program.\n");
	return;
	}

	qglMTexCoord2fSGIS = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
	qglSelectTextureSGIS = (void *) dlsym(prjobj, "glSelectTextureSGIS");

	if (qglMTexCoord2fSGIS && qglSelectTextureSGIS) {
	Con_Printf("Multitexture extensions found.\n");
	gl_mtexable = true;
	} else
	Con_Printf("Symbol not found, disabled.\n");

	dlclose(prjobj);
	}
	}

	/*
	===============
	GL_Init
	===============
	*/
	void GL_Init (void)
	{
	gl_vendor = glGetString (GL_VENDOR);
	Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
	gl_renderer = glGetString (GL_RENDERER);
	Con_Printf ("GL_RENDERER: %s\n", gl_renderer);

	gl_version = glGetString (GL_VERSION);
	Con_Printf ("GL_VERSION: %s\n", gl_version);
	gl_extensions = glGetString (GL_EXTENSIONS);
	Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);

	// Con_Printf ("%s %s\n", gl_renderer, gl_version);

	CheckMultiTextureExtensions ();

	glClearColor (1,0,0,0);
	glCullFace(GL_FRONT);
	glEnable(GL_TEXTURE_2D);

	glEnable(GL_ALPHA_TEST);
	glAlphaFunc(GL_GREATER, 0.666);

	glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	glShadeModel (GL_FLAT);

	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

	glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

	// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
	}

	/*
	=================
	GL_BeginRendering

	=================
	*/
	void GL_BeginRendering (int x, int y, int width, int height)
	{
	extern cvar_t gl_clear;

	x = y = 0;
	*width = scr_width;
	*height = scr_height;

	// if (!wglMakeCurrent( maindc, baseRC ))
	// Sys_Error ("wglMakeCurrent failed");

	// glViewport (x, y, width, height);
	}


	void GL_EndRendering (void)
	{
	glFlush();
	fxMesaSwapBuffers();
	}

	void Init_KBD(void)
	{
	int i;

	if (COM_CheckParm("-nokbd")) UseKeyboard = 0;

	if (UseKeyboard)
	{
	for (i=0 ; i<128 ; i++)
	scantokey[i] = ' ';

	scantokey[42] = K_SHIFT;
	scantokey[54] = K_SHIFT;
	scantokey[72] = K_UPARROW;
	scantokey[103] = K_UPARROW;
	scantokey[80] = K_DOWNARROW;
	scantokey[108] = K_DOWNARROW;
	scantokey[75] = K_LEFTARROW;
	scantokey[105] = K_LEFTARROW;
	scantokey[77] = K_RIGHTARROW;
	scantokey[106] = K_RIGHTARROW;
	scantokey[29] = K_CTRL;
	scantokey[97] = K_CTRL;
	scantokey[56] = K_ALT;
	scantokey[100] = K_ALT;
	// scantokey[58] = JK_CAPS;
	// scantokey[69] = JK_NUM_LOCK;
	scantokey[71] = K_HOME;
	scantokey[73] = K_PGUP;
	scantokey[79] = K_END;
	scantokey[81] = K_PGDN;
	scantokey[82] = K_INS;
	scantokey[83] = K_DEL;
	scantokey[1 ] = K_ESCAPE;
	scantokey[28] = K_ENTER;
	scantokey[15] = K_TAB;
	scantokey[14] = K_BACKSPACE;
	scantokey[119] = K_PAUSE;
	scantokey[57] = ' ';

	scantokey[102] = K_HOME;
	scantokey[104] = K_PGUP;
	scantokey[107] = K_END;
	scantokey[109] = K_PGDN;
	scantokey[110] = K_INS;
	scantokey[111] = K_DEL;

	scantokey[2] = '1';
	scantokey[3] = '2';
	scantokey[4] = '3';
	scantokey[5] = '4';
	scantokey[6] = '5';
	scantokey[7] = '6';
	scantokey[8] = '7';
	scantokey[9] = '8';
	scantokey[10] = '9';
	scantokey[11] = '0';
	scantokey[12] = '-';
	scantokey[13] = '=';
	scantokey[41] = '`';
	scantokey[26] = '[';
	scantokey[27] = ']';
	scantokey[39] = ';';
	scantokey[40] = '\'';
	scantokey[51] = ',';
	scantokey[52] = '.';
	scantokey[53] = '/';
	scantokey[43] = '\\';

	scantokey[59] = K_F1;
	scantokey[60] = K_F2;
	scantokey[61] = K_F3;
	scantokey[62] = K_F4;
	scantokey[63] = K_F5;
	scantokey[64] = K_F6;
	scantokey[65] = K_F7;
	scantokey[66] = K_F8;
	scantokey[67] = K_F9;
	scantokey[68] = K_F10;
	scantokey[87] = K_F11;
	scantokey[88] = K_F12;
	scantokey[30] = 'a';
	scantokey[48] = 'b';
	scantokey[46] = 'c';
	scantokey[32] = 'd';
	scantokey[18] = 'e';
	scantokey[33] = 'f';
	scantokey[34] = 'g';
	scantokey[35] = 'h';
	scantokey[23] = 'i';
	scantokey[36] = 'j';
	scantokey[37] = 'k';
	scantokey[38] = 'l';
	scantokey[50] = 'm';
	scantokey[49] = 'n';
	scantokey[24] = 'o';
	scantokey[25] = 'p';
	scantokey[16] = 'q';
	scantokey[19] = 'r';
	scantokey[31] = 's';
	scantokey[20] = 't';
	scantokey[22] = 'u';
	scantokey[47] = 'v';
	scantokey[17] = 'w';
	scantokey[45] = 'x';
	scantokey[21] = 'y';
	scantokey[44] = 'z';

	scantokey[78] = '+';
	scantokey[74] = '-';

	if (keyboard_init())
	Sys_Error("keyboard_init() failed");
	keyboard_seteventhandler(keyhandler);
	}
	}

	#define NUM_RESOLUTIONS 16

	static int resolutions[NUM_RESOLUTIONS][3]={
	320,200, GR_RESOLUTION_320x200,
	320,240, GR_RESOLUTION_320x240,
	400,256, GR_RESOLUTION_400x256,
	400,300, GR_RESOLUTION_400x300,
	512,384, GR_RESOLUTION_512x384,
	640,200, GR_RESOLUTION_640x200,
	640,350, GR_RESOLUTION_640x350,
	640,400, GR_RESOLUTION_640x400,
	640,480, GR_RESOLUTION_640x480,
	800,600, GR_RESOLUTION_800x600,
	960,720, GR_RESOLUTION_960x720,
	856,480, GR_RESOLUTION_856x480,
	512,256, GR_RESOLUTION_512x256,
	1024,768, GR_RESOLUTION_1024x768,
	1280,1024,GR_RESOLUTION_1280x1024,
	1600,1200,GR_RESOLUTION_1600x1200
	};

	int findres(int width, int height)
	{
	int i;

	for(i=0;i<NUM_RESOLUTIONS;i++)
	if((width<=resolutions[i][0]) && (height<=resolutions[i][1])) {
	*width = resolutions[i][0];
	*height = resolutions[i][1];
	return resolutions[i][2];
	}

	*width = 640;
	*height = 480;
	return GR_RESOLUTION_640x480;
	}

	qboolean VID_Is8bit(void)
	{
	return is8bit;
	}

	void VID_Init8bitPalette(void)
	{
	// Check for 8bit Extensions and initialize them.
	int i;
	void *prjobj;

	if (COM_CheckParm("-no8bit"))
	return;

	if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL) {
	Con_Printf("Unable to open symbol list for main program.\n");
	return;
	}

	if (strstr(gl_extensions, "3DFX_set_global_palette") &&
	(qgl3DfxSetPaletteEXT = dlsym(prjobj, "gl3DfxSetPaletteEXT")) != NULL) {
	GLubyte table[256][4];
	char *oldpal;

	Con_SafePrintf("... Using 3DFX_set_global_palette\n");
	glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
	oldpal = (char *) d_8to24table; //d_8to24table3dfx;
	for (i=0;i<256;i++) {
	table[i][2] = *oldpal++;
	table[i][1] = *oldpal++;
	table[i][0] = *oldpal++;
	table[i][3] = 255;
	oldpal++;
	}
	qgl3DfxSetPaletteEXT((GLuint *)table);
	is8bit = true;

	} else if (strstr(gl_extensions, "GL_EXT_shared_texture_palette") &&
	(qglColorTableEXT = dlsym(prjobj, "glColorTableEXT")) != NULL) {
	char thePalette[256*3];
	char oldPalette, newPalette;

	Con_SafePrintf("... Using GL_EXT_shared_texture_palette\n");
	glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
	oldPalette = (char *) d_8to24table; //d_8to24table3dfx;
	newPalette = thePalette;
	for (i=0;i<256;i++) {
	newPalette++ = oldPalette++;
	newPalette++ = oldPalette++;
	newPalette++ = oldPalette++;
	oldPalette++;
	}
	qglColorTableEXT(GL_SHARED_TEXTURE_PALETTE_EXT, GL_RGB, 256, GL_RGB, GL_UNSIGNED_BYTE, (void *) thePalette);
	is8bit = true;

	}

	dlclose(prjobj);
	}

	static void Check_Gamma (unsigned char *pal)
	{
	float f, inf;
	unsigned char palette[768];
	int i;

	if ((i = COM_CheckParm("-gamma")) == 0) {
	if ((gl_renderer && strstr(gl_renderer, "Voodoo")) \|\|
	(gl_vendor && strstr(gl_vendor, "3Dfx")))
	vid_gamma = 1;
	else
	vid_gamma = 0.7; // default to 0.7 on non-3dfx hardware
	} else
	vid_gamma = Q_atof(com_argv[i+1]);

	for (i=0 ; i<768 ; i++)
	{
	f = pow ( (pal[i]+1)/256.0 , vid_gamma );
	inf = f*255 + 0.5;
	if (inf < 0)
	inf = 0;
	if (inf > 255)
	inf = 255;
	palette[i] = inf;
	}

	memcpy (pal, palette, sizeof(palette));
	}

	void VID_Init(unsigned char *palette)
	{
	int i;
	GLint attribs[32];
	char gldir[MAX_OSPATH];
	int width = 640, height = 480;

	Init_KBD();

	Cvar_RegisterVariable (&vid_mode);
	Cvar_RegisterVariable (&vid_redrawfull);
	Cvar_RegisterVariable (&vid_waitforrefresh);
	Cvar_RegisterVariable (&gl_ztrick);

	vid.maxwarpwidth = WARP_WIDTH;
	vid.maxwarpheight = WARP_HEIGHT;
	vid.colormap = host_colormap;
	vid.fullbright = 256 - LittleLong (((int )vid.colormap + 2048));

	// interpret command-line params

	// set vid parameters
	attribs[0] = FXMESA_DOUBLEBUFFER;
	attribs[1] = FXMESA_ALPHA_SIZE;
	attribs[2] = 1;
	attribs[3] = FXMESA_DEPTH_SIZE;
	attribs[4] = 1;
	attribs[5] = FXMESA_NONE;

	if ((i = COM_CheckParm("-width")) != 0)
	width = atoi(com_argv[i+1]);
	if ((i = COM_CheckParm("-height")) != 0)
	height = atoi(com_argv[i+1]);

	if ((i = COM_CheckParm("-conwidth")) != 0)
	vid.conwidth = Q_atoi(com_argv[i+1]);
	else
	vid.conwidth = 640;

	vid.conwidth &= 0xfff8; // make it a multiple of eight

	if (vid.conwidth < 320)
	vid.conwidth = 320;

	// pick a conheight that matches with correct aspect
	vid.conheight = vid.conwidth*3 / 4;

	if ((i = COM_CheckParm("-conheight")) != 0)
	vid.conheight = Q_atoi(com_argv[i+1]);
	if (vid.conheight < 200)
	vid.conheight = 200;

	fc = fxMesaCreateContext(0, findres(&width, &height), GR_REFRESH_75Hz,
	attribs);
	if (!fc)
	Sys_Error("Unable to create 3DFX context.\n");

	InitSig(); // trap evil signals

	scr_width = width;
	scr_height = height;

	fxMesaMakeCurrent(fc);

	if (vid.conheight > height)
	vid.conheight = height;
	if (vid.conwidth > width)
	vid.conwidth = width;
	vid.width = vid.conwidth;
	vid.height = vid.conheight;

	vid.aspect = ((float)vid.height / (float)vid.width) *
	(320.0 / 240.0);
	vid.numpages = 2;

	GL_Init();

	sprintf (gldir, "%s/glquake", com_gamedir);
	Sys_mkdir (gldir);

	Check_Gamma(palette);
	VID_SetPalette(palette);

	// Check for 3DFX Extensions and initialize them.
	VID_Init8bitPalette();

	Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);

	vid.recalc_refdef = 1; // force a surface cache flush
	}

	void Sys_SendKeyEvents(void)
	{
	if (UseKeyboard)
	while (keyboard_update());
	}

	void Force_CenterView_f (void)
	{
	cl.viewangles[PITCH] = 0;
	}


	void mousehandler(int buttonstate, int dx, int dy)
	{
	mouse_buttonstate = buttonstate;
	mx += dx;
	my += dy;
	}

	void IN_Init(void)
	{

	int mtype;
	char *mousedev;
	int mouserate;

	if (UseMouse)
	{

	Cvar_RegisterVariable (&mouse_button_commands[0]);
	Cvar_RegisterVariable (&mouse_button_commands[1]);
	Cvar_RegisterVariable (&mouse_button_commands[2]);
	Cmd_AddCommand ("force_centerview", Force_CenterView_f);

	mouse_buttons = 3;

	mtype = vga_getmousetype();

	mousedev = "/dev/mouse";
	if (getenv("MOUSEDEV")) mousedev = getenv("MOUSEDEV");
	if (COM_CheckParm("-mdev"))
	mousedev = com_argv[COM_CheckParm("-mdev")+1];

	mouserate = 1200;
	if (getenv("MOUSERATE")) mouserate = atoi(getenv("MOUSERATE"));
	if (COM_CheckParm("-mrate"))
	mouserate = atoi(com_argv[COM_CheckParm("-mrate")+1]);

	if (mouse_init(mousedev, mtype, mouserate))
	{
	Con_Printf("No mouse found\n");
	UseMouse = 0;
	}
	else
	mouse_seteventhandler(mousehandler);

	}

	}

	void IN_Shutdown(void)
	{
	if (UseMouse)
	mouse_close();
	}

	/*
	===========
	IN_Commands
	===========
	*/
	void IN_Commands (void)
	{
	if (UseMouse && cls.state != ca_dedicated)
	{
	// poll mouse values
	while (mouse_update())
	;

	// perform button actions
	if ((mouse_buttonstate & MOUSE_LEFTBUTTON) &&
	!(mouse_oldbuttonstate & MOUSE_LEFTBUTTON))
	Key_Event (K_MOUSE1, true);
	else if (!(mouse_buttonstate & MOUSE_LEFTBUTTON) &&
	(mouse_oldbuttonstate & MOUSE_LEFTBUTTON))
	Key_Event (K_MOUSE1, false);

	if ((mouse_buttonstate & MOUSE_RIGHTBUTTON) &&
	!(mouse_oldbuttonstate & MOUSE_RIGHTBUTTON))
	Key_Event (K_MOUSE2, true);
	else if (!(mouse_buttonstate & MOUSE_RIGHTBUTTON) &&
	(mouse_oldbuttonstate & MOUSE_RIGHTBUTTON))
	Key_Event (K_MOUSE2, false);

	if ((mouse_buttonstate & MOUSE_MIDDLEBUTTON) &&
	!(mouse_oldbuttonstate & MOUSE_MIDDLEBUTTON))
	Key_Event (K_MOUSE3, true);
	else if (!(mouse_buttonstate & MOUSE_MIDDLEBUTTON) &&
	(mouse_oldbuttonstate & MOUSE_MIDDLEBUTTON))
	Key_Event (K_MOUSE3, false);

	mouse_oldbuttonstate = mouse_buttonstate;
	}
	}

	/*
	===========
	IN_Move
	===========
	*/
	void IN_MouseMove (usercmd_t *cmd)
	{
	if (!UseMouse)
	return;

	// poll mouse values
	while (mouse_update())
	;

	if (m_filter.value)
	{
	mouse_x = (mx + old_mouse_x) * 0.5;
	mouse_y = (my + old_mouse_y) * 0.5;
	}
	else
	{
	mouse_x = mx;
	mouse_y = my;
	}
	old_mouse_x = mx;
	old_mouse_y = my;
	mx = my = 0; // clear for next update

	mouse_x *= sensitivity.value;
	mouse_y *= sensitivity.value;

	// add mouse X/Y movement to cmd
	if ( (in_strafe.state & 1) \|\| (lookstrafe.value && (in_mlook.state & 1) ))
	cmd->sidemove += m_side.value * mouse_x;
	else
	cl.viewangles[YAW] -= m_yaw.value * mouse_x;

	if (in_mlook.state & 1)
	V_StopPitchDrift ();

	if ( (in_mlook.state & 1) && !(in_strafe.state & 1))
	{
	cl.viewangles[PITCH] += m_pitch.value * mouse_y;
	if (cl.viewangles[PITCH] > 80)
	cl.viewangles[PITCH] = 80;
	if (cl.viewangles[PITCH] < -70)
	cl.viewangles[PITCH] = -70;
	}
	else
	{
	if ((in_strafe.state & 1) && noclip_anglehack)
	cmd->upmove -= m_forward.value * mouse_y;
	else
	cmd->forwardmove -= m_forward.value * mouse_y;
	}
	}

	void IN_Move (usercmd_t *cmd)
	{
	IN_MouseMove(cmd);
	}