gl_vidlinux.c

quake1 dos源代码最新版本

		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));
}

// 2001-09-18 New cvar system by Maddes (Init)  start
/*
===================
VID_Init_Cvars
===================
*/
void VID_Init_Cvars (void)
{
	vid_mode = Cvar_Get ("vid_mode", "5", CVAR_ORIGINAL);
	vid_redrawfull = Cvar_Get ("vid_redrawfull", "0", CVAR_ORIGINAL);
	vid_waitforrefresh = Cvar_Get ("vid_waitforrefresh", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	gl_ztrick = Cvar_Get ("gl_ztrick", "1", CVAR_ORIGINAL);
}
// 2001-09-18 New cvar system by Maddes (Init)  end

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

	Init_KBD();

// 2001-09-18 New cvar system by Maddes (Init)  start
/*
	vid_mode = Cvar_Get ("vid_mode", "5", CVAR_ORIGINAL);
	vid_redrawfull = Cvar_Get ("vid_redrawfull", "0", CVAR_ORIGINAL);
	vid_waitforrefresh = Cvar_Get ("vid_waitforrefresh", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	m_filter = Cvar_Get ("m_filter", "1", CVAR_ORIGINAL);		// 2001-09-18 New cvar system by Maddes (Is this correct?)
	gl_ztrick = Cvar_Get ("gl_ztrick", "1", CVAR_ORIGINAL);
*/
// 2001-09-18 New cvar system by Maddes (Init)  end

	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;
}

// 2001-09-18 New cvar system by Maddes (Init)  start
/*
===================
IN_Init_Cvars
===================
*/
void IN_Init_Cvars (void)
{
	m_filter = Cvar_Get ("m_filter", "1", CVAR_ORIGINAL);		// 2001-09-18 New cvar system by Maddes (Is this correct?)
}
// 2001-09-18 New cvar system by Maddes (Init)  end

void IN_Init(void)
{

	int mtype;
	char *mousedev;
	int mouserate;

	if (UseMouse)
	{
		mouse_button_commands[0] = Cvar_Get ("mouse1", "+attack", CVAR_ORIGINAL);
		mouse_button_commands[1] = Cvar_Get ("mouse2", "+strafe", CVAR_ORIGINAL);
		mouse_button_commands[2] = Cvar_Get ("mouse3", "+forward", CVAR_ORIGINAL);
		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) ^ ((int)m_look->value & 1)) ))	// 2001-12-16 M_LOOK cvar by Heffo/Maddes
		cmd->sidemove += m_side->value * mouse_x;
	else
		cl.viewangles[YAW] -= m_yaw->value * mouse_x;

	if ((in_mlook.state & 1) ^ ((int)m_look->value & 1))	// 2001-12-16 M_LOOK cvar by Heffo/Maddes
		V_StopPitchDrift ();

	if ( ((in_mlook.state & 1) ^ ((int)m_look->value & 1)) && !(in_strafe.state & 1))	// 2001-12-16 M_LOOK cvar by Heffo/Maddes
	{
		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);
}