Source to src/m_misc.c


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//**************************************************************************
//**
//** m_misc.c : Heretic 2 : Raven Software, Corp.
//**
//** $RCSfile: m_misc.c,v $
//** $Revision: 1.18 $
//** $Date: 96/01/07 16:51:18 $
//** $Author: bgokey $
//**
//**************************************************************************

// HEADER FILES ------------------------------------------------------------

#ifdef __NeXT__
	#include <libc.h>
#else
	#include <sys/stat.h>
	#include <sys/types.h>
	#include <direct.h>
	#include <fcntl.h>
	#include <stdlib.h>
	#include <io.h>
	#include <conio.h>
#endif
#include <ctype.h>
#include "h2def.h"
#include "p_local.h"
#include "soundst.h"

// MACROS ------------------------------------------------------------------

#define MALLOC_CLIB 1
#define MALLOC_ZONE 2

// TYPES -------------------------------------------------------------------

// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------

// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------

// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------

static int ReadFile(char const *name, byte **buffer, int mallocType);

// EXTERNAL DATA DECLARATIONS ----------------------------------------------
extern char *SavePath;

// PUBLIC DATA DEFINITIONS -------------------------------------------------

int myargc;
char **myargv;

// PRIVATE DATA DEFINITIONS ------------------------------------------------

// CODE --------------------------------------------------------------------

//==========================================================================
//
// M_CheckParm
//
// Checks for the given parameter in the program's command line arguments.
// Returns the argument number (1 to argc-1) or 0 if not present.
//
//==========================================================================

int M_CheckParm(char *check)
{
	int i;

	for(i = 1; i < myargc; i++)
	{
		if(!strcasecmp(check, myargv[i]))
		{
			return i;
		}
	}
	return 0;
}

//==========================================================================
//
// M_ParmExists
//
// Returns true if the given parameter exists in the program's command
// line arguments, false if not.
//
//==========================================================================

boolean M_ParmExists(char *check)
{
	return M_CheckParm(check) != 0 ? true : false;
}

//==========================================================================
//
// M_ExtractFileBase
//
//==========================================================================

void M_ExtractFileBase(char *path, char *dest)
{
	char *src;
	int length;

	src = path+strlen(path)-1;

	// Back up until a \ or the start
	while(src != path && *(src-1) != '\\' && *(src-1) != '/')
	{
		src--;
	}

	// Copy up to eight characters
	memset(dest, 0, 8);
	length = 0;
	while(*src && *src != '.')
	{
		if(++length == 9)
		{
			I_Error("Filename base of %s > 8 chars", path);
		}
		*dest++ = toupper((int)*src++);
	}
}

/*
===============
=
= M_Random
=
= Returns a 0-255 number
=
===============
*/


// This is the new flat distribution table
unsigned char rndtable[256] = {
	201,  1,243, 19, 18, 42,183,203,101,123,154,137, 34,118, 10,216,
	135,246,  0,107,133,229, 35,113,177,211,110, 17,139, 84,251,235,
	182,166,161,230,143, 91, 24, 81, 22, 94,  7, 51,232,104,122,248,
	175,138,127,171,222,213, 44, 16,  9, 33, 88,102,170,150,136,114,
	 62,  3,142,237,  6,252,249, 56, 74, 30, 13, 21,180,199, 32,132,
	187,234, 78,210, 46,131,197,  8,206,244, 73,  4,236,178,195, 70,
	121, 97,167,217,103, 40,247,186,105, 39, 95,163, 99,149,253, 29,
	119, 83,254, 26,202, 65,130,155, 60, 64,184,106,221, 93,164,196,
	112,108,179,141, 54,109, 11,126, 75,165,191,227, 87,225,156, 15,
	 98,162,116, 79,169,140,190,205,168,194, 41,250, 27, 20, 14,241,
	 50,214, 72,192,220,233, 67,148, 96,185,176,181,215,207,172, 85,
	 89, 90,209,128,124,  2, 55,173, 66,152, 47,129, 59, 43,159,240,
	239, 12,189,212,144, 28,200, 77,219,198,134,228, 45, 92,125,151,
	  5, 53,255, 52, 68,245,160,158, 61, 86, 58, 82,117, 37,242,145,
	 69,188,115, 76, 63,100, 49,111,153, 80, 38, 57,174,224, 71,231,
	 23, 25, 48,218,120,147,208, 36,226,223,193,238,157,204,146, 31
};


int rndindex = 0;
int prndindex = 0;

int M_Random (void)
{
	rndindex = (rndindex+1)&0xff;
	return rndtable[rndindex];
}

void M_ClearRandom (void)
{
	rndindex = prndindex = 0;
}


void M_ClearBox (fixed_t *box)
{
	box[BOXTOP] = box[BOXRIGHT] = MININT;
	box[BOXBOTTOM] = box[BOXLEFT] = MAXINT;
}

void M_AddToBox (fixed_t *box, fixed_t x, fixed_t y)
{
	if (x<box[BOXLEFT])
		box[BOXLEFT] = x;
	else if (x>box[BOXRIGHT])
		box[BOXRIGHT] = x;
	if (y<box[BOXBOTTOM])
		box[BOXBOTTOM] = y;
	else if (y>box[BOXTOP])
		box[BOXTOP] = y;
}

/*
==================
=
= M_WriteFile
=
==================
*/

#ifndef O_BINARY
#define O_BINARY 0
#endif

boolean M_WriteFile (char const *name, void *source, int length)
{
	int handle, count;

	handle = open (name, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
	if (handle == -1)
		return false;
	count = write (handle, source, length);
	close (handle);

	if (count < length)
		return false;

	return true;
}

//==========================================================================
//
// M_ReadFile
//
// Read a file into a buffer allocated using Z_Malloc().
//
//==========================================================================

int M_ReadFile(char const *name, byte **buffer)
{
	return ReadFile(name, buffer, MALLOC_ZONE);
}

//==========================================================================
//
// M_ReadFileCLib
//
// Read a file into a buffer allocated using malloc().
//
//==========================================================================

int M_ReadFileCLib(char const *name, byte **buffer)
{
	return ReadFile(name, buffer, MALLOC_CLIB);
}

//==========================================================================
//
// ReadFile
//
//==========================================================================

static int ReadFile(char const *name, byte **buffer, int mallocType)
{
	int handle, count, length;
	struct stat fileinfo;
	byte *buf;

	handle = open(name, O_RDONLY|O_BINARY, 0666);
	if(handle == -1)
	{
		I_Error("Couldn't read file %s", name);
	}
	if(fstat(handle, &fileinfo) == -1)
	{
		I_Error("Couldn't read file %s", name);
	}
	length = fileinfo.st_size;
	if(mallocType == MALLOC_ZONE)
	{ // Use zone memory allocation
		buf = Z_Malloc(length, PU_STATIC, NULL);
	}
	else
	{ // Use c library memory allocation
		buf = malloc(length);
		if(buf == NULL)
		{
			I_Error("Couldn't malloc buffer %d for file %s.",
				length, name);
		}
	}
	count = read(handle, buf, length);
	close(handle);
	if(count < length)
	{
		I_Error("Couldn't read file %s", name);
	}
	*buffer = buf;
	return length;
}

//---------------------------------------------------------------------------
//
// PROC M_FindResponseFile
//
//---------------------------------------------------------------------------

#define MAXARGVS 100

void M_FindResponseFile(void)
{
	int i;

	for(i = 1; i < myargc; i++)
	{
		if(myargv[i][0] == '@')
		{
			FILE *handle;
			int size;
			int k;
			int index;
			int indexinfile;
			char *infile;
			char *file;
			char *moreargs[20];
			char *firstargv;

			// READ THE RESPONSE FILE INTO MEMORY
			handle = fopen(&myargv[i][1], "rb");
			if(!handle)
			{

				printf("\nNo such response file!");
				exit(1);
			}
			ST_Message("Found response file %s!\n",&myargv[i][1]);
			fseek (handle,0,SEEK_END);
			size = ftell(handle);
			fseek (handle,0,SEEK_SET);
			file = malloc (size);
			fread (file,size,1,handle);
			fclose (handle);

			// KEEP ALL CMDLINE ARGS FOLLOWING @RESPONSEFILE ARG
			for (index = 0,k = i+1; k < myargc; k++)
				moreargs[index++] = myargv[k];
			
			firstargv = myargv[0];
			myargv = malloc(sizeof(char *)*MAXARGVS);
			memset(myargv,0,sizeof(char *)*MAXARGVS);
			myargv[0] = firstargv;
			
			infile = file;
			indexinfile = k = 0;
			indexinfile++;  // SKIP PAST ARGV[0] (KEEP IT)
			do
			{
				myargv[indexinfile++] = infile+k;
				while(k < size &&  

					((*(infile+k)>= ' '+1) && (*(infile+k)<='z')))
					k++;
				*(infile+k) = 0;
				while(k < size &&
					((*(infile+k)<= ' ') || (*(infile+k)>'z')))
					k++;
			} while(k < size);
			
			for (k = 0;k < index;k++)
				myargv[indexinfile++] = moreargs[k];
			myargc = indexinfile;
			// DISPLAY ARGS
			if(M_CheckParm("-debug"))
			{
				ST_Message("%d command-line args:\n", myargc);
				for(k = 1; k < myargc; k++)
				{
					ST_Message("%s\n", myargv[k]);
				}
			}
			break;
		}
	}
}

//---------------------------------------------------------------------------
//
// PROC M_ForceUppercase
//
// Change string to uppercase.
//
//---------------------------------------------------------------------------

void M_ForceUppercase(char *text)
{
	char c;

	while((c = *text) != 0)
	{
		if(c >= 'a' && c <= 'z')
		{
			*text++ = c-('a'-'A');
		}
		else
		{
			text++;
		}
	}
}

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

							DEFAULTS

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

int     usemouse;
int     usejoystick;

extern int key_right, key_left, key_up, key_down;
extern int key_strafeleft, key_straferight, key_jump;
extern int key_fire, key_use, key_strafe, key_speed;
extern int key_flyup, key_flydown, key_flycenter;
extern int key_lookup, key_lookdown, key_lookcenter;
extern int key_invleft, key_invright, key_useartifact;

extern int mousebfire;
extern int mousebstrafe;
extern int mousebforward;
extern int mousebjump;

extern int joybfire;
extern int joybstrafe;
extern int joybuse;
extern int joybspeed;
extern int joybjump;

extern boolean messageson;

extern  int     viewwidth, viewheight;

int mouseSensitivity;

extern  int screenblocks;

extern char *chat_macros[10];

typedef struct
{
	char    *name;
	int     *location;
	int     defaultvalue;
	int     scantranslate;      // PC scan code hack
	int     untranslated;       // lousy hack
} default_t;

#ifndef __NeXT__
extern int snd_Channels;
extern int snd_DesiredMusicDevice, snd_DesiredSfxDevice;
extern int snd_MusicDevice, // current music card # (index to dmxCodes)
	snd_SfxDevice; // current sfx card # (index to dmxCodes)

extern int     snd_SBport, snd_SBirq, snd_SBdma;       // sound blaster variables
extern int     snd_Mport;                              // midi variables
#endif

default_t defaults[] =
{
	{ "mouse_sensitivity", &mouseSensitivity, 5 },

#ifndef __NeXT__
	{ "sfx_volume", &snd_MaxVolume, 10},
	{ "music_volume", &snd_MusicVolume, 10},
#endif

#ifdef __WATCOMC__
#define SC_UPARROW              0x48
#define SC_DOWNARROW            0x50
#define SC_LEFTARROW            0x4b
#define SC_RIGHTARROW           0x4d
#define SC_RCTRL                0x1d
#define SC_RALT                 0x38
#define SC_RSHIFT               0x36
#define SC_SPACE                0x39
#define SC_COMMA                0x33
#define SC_PERIOD               0x34
#define SC_PAGEUP				0x49
#define SC_INSERT				0x52
#define SC_HOME					0x47
#define SC_PAGEDOWN				0x51
#define SC_DELETE				0x53
#define SC_END					0x4f
#define SC_ENTER				0x1c
#define SC_SLASH				0X35

	{ "key_right", &key_right, SC_RIGHTARROW, 1 },
	{ "key_left", &key_left, SC_LEFTARROW, 1 },
	{ "key_up", &key_up, SC_UPARROW, 1 },
	{ "key_down", &key_down, SC_DOWNARROW, 1 },
	{ "key_strafeleft", &key_strafeleft, SC_COMMA, 1 },
	{ "key_straferight", &key_straferight, SC_PERIOD, 1 },
	{ "key_jump", &key_jump, SC_SLASH, 1},
	{ "key_flyup", &key_flyup, SC_PAGEUP, 1 },
	{ "key_flydown", &key_flydown, SC_INSERT, 1 },
	{ "key_flycenter", &key_flycenter, SC_HOME, 1 },
	{ "key_lookup", &key_lookup, SC_PAGEDOWN, 1 },
	{ "key_lookdown", &key_lookdown, SC_DELETE, 1 },
	{ "key_lookcenter", &key_lookcenter, SC_END, 1 },
	{ "key_invleft", &key_invleft, 0x1a, 1 },
	{ "key_invright", &key_invright, 0x1b, 1 },
	{ "key_useartifact", &key_useartifact, SC_ENTER, 1 },

	{ "key_fire", &key_fire, SC_RCTRL, 1 },
	{ "key_use", &key_use, SC_SPACE, 1 },
	{ "key_strafe", &key_strafe, SC_RALT, 1 },
	{ "key_speed", &key_speed, SC_RSHIFT, 1 },
#endif

#ifdef __NeXT__
	{ "key_right", &key_right, KEY_RIGHTARROW },
	{ "key_left", &key_left, KEY_LEFTARROW },
	{ "key_up", &key_up, KEY_UPARROW },
	{ "key_down", &key_down, KEY_DOWNARROW },
	{ "key_strafeleft", &key_strafeleft, ',' },
	{ "key_straferight", &key_straferight, '.' },
	{ "key_jump", &key_jump, '/'},
	{ "key_flyup", &key_flyup, 'u' },
	{ "key_flydown", &key_flydown, 'j' },
	{ "key_flycenter", &key_flycenter, 'k' },
	{ "key_lookup", &key_lookup, 'm' },
	{ "key_lookdown", &key_lookdown, 'b' },
	{ "key_lookcenter", &key_lookcenter, 'n' },
	{ "key_invleft", &key_invleft, '[' },
	{ "key_invright", &key_invright, ']' },
	{ "key_useartifact", &key_useartifact, 13 },

	{ "key_fire", &key_fire, ' ', 1 },
	{ "key_use", &key_use, 'x', 1 },
	{ "key_strafe", &key_strafe, 'c', 1 },
	{ "key_speed", &key_speed, 'z', 1 },
#endif

	{ "use_mouse", &usemouse, 1 },
	{ "mouseb_fire", &mousebfire, 0 },
	{ "mouseb_strafe", &mousebstrafe, 1 },
	{ "mouseb_forward", &mousebforward, 2 },
	{ "mouseb_jump", &mousebjump, -1 },

	{ "use_joystick", &usejoystick, 0 },
	{ "joyb_fire", &joybfire, 0 },
	{ "joyb_strafe", &joybstrafe, 1 },
	{ "joyb_use", &joybuse, 3 },
	{ "joyb_speed", &joybspeed, 2 },
	{ "joyb_jump", &joybjump, -1 },

	{ "screenblocks", &screenblocks, 10 },

#ifndef __NeXT__
	{ "snd_channels", &snd_Channels, 3 },
	{ "snd_musicdevice", &snd_DesiredMusicDevice, 0 },
	{ "snd_sfxdevice", &snd_DesiredSfxDevice, 0 },
	{ "snd_sbport", &snd_SBport, 544 },
	{ "snd_sbirq", &snd_SBirq, -1 },
	{ "snd_sbdma", &snd_SBdma, -1 },
	{ "snd_mport", &snd_Mport, -1 },
#endif

	{ "usegamma", &usegamma, 0 },

#ifdef __NeXT__
	#define DEFAULT_SAVEPATH		"hexndata/"
#endif
#ifdef __WATCOMC__
	#define DEFAULT_SAVEPATH		"hexndata\\"
#endif
	{ "savedir", (int *) &SavePath, (int) DEFAULT_SAVEPATH },

	{ "messageson", (int *) &messageson, 1 },

	{ "chatmacro0", (int *) &chat_macros[0], (int) HUSTR_CHATMACRO0 },
	{ "chatmacro1", (int *) &chat_macros[1], (int) HUSTR_CHATMACRO1 },
	{ "chatmacro2", (int *) &chat_macros[2], (int) HUSTR_CHATMACRO2 },
	{ "chatmacro3", (int *) &chat_macros[3], (int) HUSTR_CHATMACRO3 },
	{ "chatmacro4", (int *) &chat_macros[4], (int) HUSTR_CHATMACRO4 },
	{ "chatmacro5", (int *) &chat_macros[5], (int) HUSTR_CHATMACRO5 },
	{ "chatmacro6", (int *) &chat_macros[6], (int) HUSTR_CHATMACRO6 },
	{ "chatmacro7", (int *) &chat_macros[7], (int) HUSTR_CHATMACRO7 },
	{ "chatmacro8", (int *) &chat_macros[8], (int) HUSTR_CHATMACRO8 },
	{ "chatmacro9", (int *) &chat_macros[9], (int) HUSTR_CHATMACRO9 }
};

int numdefaults;
char defaultfile[128];

/*
==============
=
= M_SaveDefaults
=
==============
*/

void M_SaveDefaults (void)
{
	int     i,v;
	FILE    *f;

	f = fopen (defaultfile, "w");
	if (!f)
		return;         // can't write the file, but don't complain

	for (i=0 ; i<numdefaults ; i++)
	{
#ifdef __WATCOMC__
		if (defaults[i].scantranslate)
			defaults[i].location = &defaults[i].untranslated;
#endif
		if (defaults[i].defaultvalue > -0xfff
		  && defaults[i].defaultvalue < 0xfff)
		{
			v = *defaults[i].location;
			fprintf (f,"%s\t\t%i\n",defaults[i].name,v);
		} else {
			fprintf (f,"%s\t\t\"%s\"\n",defaults[i].name,
			  * (char **) (defaults[i].location));
		}
	}

	fclose (f);
}

//==========================================================================
//
// M_LoadDefaults
//
//==========================================================================

extern byte scantokey[128];

void M_LoadDefaults(char *fileName)
{
	int i;
	int len;
	FILE *f;
	char def[80];
	char strparm[100];
	char *newstring;
	int parm;
	boolean isstring;

	// Set everything to base values
	numdefaults = sizeof(defaults)/sizeof(defaults[0]);
	for(i = 0; i < numdefaults; i++)
	{
		*defaults[i].location = defaults[i].defaultvalue;
	}

	// Check for a custom config file
	i = M_CheckParm("-config");
	if(i && i < myargc-1)
	{
		strcpy(defaultfile, myargv[i+1]);
		ST_Message("config file: %s\n", defaultfile);
	}
	else if(cdrom)
	{
		sprintf(defaultfile, "c:\\hexndata\\%s", fileName);
	}
	else
	{
		strcpy(defaultfile, fileName);
	}

	// Scan the config file
	f = fopen(defaultfile, "r");
	if(f)
	{
		while(!feof(f))
		{
			isstring = false;
			if(fscanf(f, "%79s %[^\n]\n", def, strparm) == 2)
			{
				if(strparm[0] == '"')
				{
					 // Get a string default
					 isstring = true;
					 len = strlen(strparm);
					 newstring = (char *)malloc(len);
					 if (newstring == NULL) I_Error("can't malloc newstring");
					 strparm[len-1] = 0;
					 strcpy(newstring, strparm+1);
				}
				else if(strparm[0] == '0' && strparm[1] == 'x')
				{
					sscanf(strparm+2, "%x", &parm);
				}
				else
				{
					sscanf(strparm, "%i", &parm);
				}
				for(i = 0; i < numdefaults; i++)
				{
					if(!strcmp(def, defaults[i].name))
					{
						if(!isstring)
						{
							*defaults[i].location = parm;
						}
						else
						{
							*defaults[i].location = (int)newstring;
						}
						break;
					}
				}
			}
		}

		fclose (f);
	}

#ifdef __WATCOMC__
	// Translate the key scancodes
	for(i = 0; i < numdefaults; i++)
	{
		if(defaults[i].scantranslate)
		{
			parm = *defaults[i].location;
			defaults[i].untranslated = parm;
			*defaults[i].location = scantokey[parm];
		}
	}
#endif
}

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

						SCREEN SHOTS

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


typedef struct
{
	char    manufacturer;
	char    version;
	char    encoding;
	char    bits_per_pixel;
	unsigned short  xmin,ymin,xmax,ymax;
	unsigned short  hres,vres;
	unsigned char   palette[48];
	char    reserved;
	char    color_planes;
	unsigned short  bytes_per_line;
	unsigned short  palette_type;
	char    filler[58];
	unsigned char   data;           // unbounded
} pcx_t;

/*
==============
=
= WritePCXfile
=
==============
*/

void WritePCXfile (char *filename, byte *data, int width, int height, byte *palette)
{
	int     i, length;
	pcx_t   *pcx;
	byte        *pack;
	
	pcx = Z_Malloc (width*height*2+1000, PU_STATIC, NULL);

	pcx->manufacturer = 0x0a;   // PCX id
	pcx->version = 5;           // 256 color
	pcx->encoding = 1;      // uncompressed
	pcx->bits_per_pixel = 8;        // 256 color
	pcx->xmin = 0;
	pcx->ymin = 0;
	pcx->xmax = SHORT(width-1);
	pcx->ymax = SHORT(height-1);
	pcx->hres = SHORT(width);
	pcx->vres = SHORT(height);
	memset (pcx->palette,0,sizeof(pcx->palette));
	pcx->color_planes = 1;      // chunky image
	pcx->bytes_per_line = SHORT(width);
	pcx->palette_type = SHORT(2);       // not a grey scale
	memset (pcx->filler,0,sizeof(pcx->filler));

//
// pack the image
//
	pack = &pcx->data;

	for (i=0 ; i<width*height ; i++)
		if ( (*data & 0xc0) != 0xc0)
			*pack++ = *data++;
		else
		{
			*pack++ = 0xc1;
			*pack++ = *data++;
		}

//
// write the palette
//
	*pack++ = 0x0c; // palette ID byte
	for (i=0 ; i<768 ; i++)
		*pack++ = *palette++;

//
// write output file
//
	length = pack - (byte *)pcx;
	M_WriteFile (filename, pcx, length);

	Z_Free (pcx);
}


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

/*
==================
=
= M_ScreenShot
=
==================
*/

void M_ScreenShot (void)
{
	int     i;
	byte    *linear;
	char    lbmname[12];
	byte *pal;

#ifdef _WATCOMC_
	extern  byte *pcscreen;
#endif
//
// munge planar buffer to linear
//
#ifdef _WATCOMC_
	linear = pcscreen;
#else
	linear = screen;
#endif
//
// find a file name to save it to
//
	strcpy(lbmname,"HEXEN00.pcx");

	for (i=0 ; i<=99 ; i++)
	{
		lbmname[5] = i/10 + '0';
		lbmname[6] = i%10 + '0';
		if (access(lbmname,0) == -1)
			break;  // file doesn't exist
	}
	if (i==100)
		I_Error ("M_ScreenShot: Couldn't create a PCX");

//
// save the pcx file
//
#ifdef __WATCOMC__
	pal = (byte *)Z_Malloc(768, PU_STATIC, NULL);
	outp(0x3c7, 0);
	for(i = 0; i < 768; i++)
	{
		*(pal+i) = inp(0x3c9)<<2;
	}
#else
	pal = (byte *)W_CacheLumpName("PLAYPAL", PU_CACHE);
#endif

	WritePCXfile (lbmname, linear, SCREENWIDTH, SCREENHEIGHT
		, pal);

	P_SetMessage(&players[consoleplayer], "SCREEN SHOT", false);
#ifdef __WATCOMC__
	Z_Free(pal);
#endif
}