ui.c - audio/dosmid - Rivoreo Source Code Repositories

 /*
  * User interface routines of DOSMid
  * Copyright (C) 2014-2016 Mateusz Viste
  */

 #include <dos.h>     /* REGS */
 #include <stdlib.h>  /* ultoa() */
 #include <stdio.h>   /* sprintf() */
 #include <string.h>  /* strlen() */

 #include "mem.h" /* MEM_XMS */
 #include "ui.h"  /* include self for control */
 #include "version.h"

 /* color scheme 0xBF00 (Background/Foreground/0/0): mono, color */
 const unsigned short COLOR_TUI[2]       = {0x0700u, 0x1700u};
 const unsigned short COLOR_NOTES[2]     = {0x0700u, 0x1E00u};
 const unsigned short COLOR_NOTES_HI[2]  = {0x0000u, 0x8000u}; /* a bit mask for highlighten columns */
 const unsigned short COLOR_TEXT[2]      = {0x0700u, 0x1700u};
 const unsigned short COLOR_TEMPO[2]     = {0x0700u, 0x1300u};
 const unsigned short COLOR_CHANS[2]     = {0x0700u, 0x1200u};
 const unsigned short COLOR_CHANS_DIS[2] = {0x0000u, 0x1800u};
 const unsigned short COLOR_PROGRESS1[2] = {0x7000u, 0x2000u}; /* elapsed time */
 const unsigned short COLOR_PROGRESS2[2] = {0x0700u, 0x8000u}; /* not yet elapsed */
 const unsigned short COLOR_ERRMSG[2]    = {0x7000u, 0x4700u};

 unsigned short far *screenptr = NULL;
 static int oldmode = 0;
 static int colorflag = 0;

 extern unsigned long MEM_TOTALLOC; /* total allocated memory from MEM.C */
 extern unsigned short MEM_MODE; /* memory mode (MEM_XMS or MEM_MALLOC) */

 /* prints a character on screen, at position [x,y]. charbyte is a 16bit
    value where higher 8 bits contain the attributes (colors) and lower
    8bits contain the actual character to draw. */
 static void ui_printchar(int y, int x, unsigned short charbyte) {
   screenptr[(y << 6) + (y << 4) + x] = charbyte;
 }

 static void ui_printstr(int y, int x, char *string, int staticlen, unsigned short attrib) {
   int xs;
   /* print out the string first */
   for (xs = 0; string[xs] != 0; xs++) ui_printchar(y, x++, string[xs] | attrib);
   /* if staticlen is provided, fill the rest with spaces */
   for (; xs < staticlen; xs++) ui_printchar(y, x++, ' ' | attrib);
 }

 void ui_init(void) {
   union REGS regs;
   /* remember the current mode */
   regs.h.ah = 0x0F; /* get current video mode */
   int86(0x10, &regs, &regs);
   oldmode = regs.h.al;
   /* set text mode 80x25 */
   regs.h.ah = 0x00;  /* set video mode */
   screenptr = MK_FP(0xB800, 0);
   colorflag = 0;
   switch (oldmode) {
     case 0: /* 40x25 BW */
     case 2: /* 80x25 BW */
       regs.h.al = 0x02;  /* 80x25 BW */
       break;
     case 7: /* 80x25 BW HGC */
       regs.h.al = 0x07;  /* 80x25 BW HGC */
       screenptr = MK_FP(0xB000, 0);
       break;
     default:
       colorflag = 1;
       regs.h.al = 0x03;  /* 80x25, 16 colors */
       break;
   }
   int86(0x10, &regs, &regs);
   /* disable blinking effect (enables the use of high-intensity backgrounds).
    * This doesn't change anything on DOSemu nor VBox, but DOSbox is unable to
    * display high intensity backgrounds otherwise. */
   regs.x.ax = 0x1003;  /* toggle intensity/blinking */
   regs.h.bl = 0;       /* enable intensive colors (1 would enable blinking) */
   regs.h.bh = 0;       /* to avoid problems on some adapters */
   int86(0x10, &regs, &regs);
 }

 void ui_close(void) {
   union REGS regs;
   regs.h.ah = 0x00;  /* set video mode */
   regs.h.al = oldmode;
   int86(0x10, &regs, &regs);
 }

 void ui_hidecursor(void) {
   union REGS regs;
   regs.h.ah = 0x01;
   regs.x.cx = 0x2000;
   int86(0x10, &regs, &regs);
 }

 /* outputs an error message onscreen (title can be NULL) */
 void ui_puterrmsg(char *title, char *errmsg) {
   int x, y;
   int msglen, titlelen, maxlen;
   int xstart;
   msglen = strlen(errmsg);
   maxlen = msglen;
   if (title != NULL) {
     titlelen = strlen(title);
     if (titlelen > msglen) maxlen = titlelen;
   }
   xstart = 40 - (maxlen >> 1);
   /* draw a red 'box' first */
   for (y = 8; y < 13; y++) {
     for (x = maxlen + 3; x >= 0; x--) {
       ui_printchar(y, xstart + x - 2, ' ' | COLOR_ERRMSG[colorflag]);
     }
   }
   /* print out the title (if any), and the actual error string */
   if (title != NULL) ui_printstr(8, 40 - (titlelen >> 1), title, titlelen, COLOR_ERRMSG[colorflag]);
   ui_printstr(10, 40 - (msglen >> 1), errmsg, msglen, COLOR_ERRMSG[colorflag]);
 }

 /* draws the UI screen */
 void ui_draw(struct trackinfodata *trackinfo, unsigned short *refreshflags, unsigned short *refreshchans, char *devname, unsigned int mpuport, int onlpt, int volume) {
   #include "gm.h"  /* GM instruments names */
   int x, y;
   /* draw ascii graphic frames, etc */
   if (*refreshflags & UI_REFRESH_TUI) {
     int len;
     char buffer[32];
     for (x = 0; x < 80; x++) {
       ui_printchar(0, x, 205 | COLOR_TUI[colorflag]);
       ui_printchar(17, x, 205 | COLOR_TUI[colorflag]);
       ui_printchar(24, x, 205 | COLOR_TUI[colorflag]);
     }
     for (y = 1; y < 17; y++) ui_printchar(y, 15, 179 | COLOR_TUI[colorflag]);
     for (y = 18; y < 24; y++) {
       ui_printchar(y, 0, 186 | COLOR_TUI[colorflag]);
       ui_printchar(y, 79, 186 | COLOR_TUI[colorflag]);
     }
     ui_printchar(0, 15, 209 | COLOR_TUI[colorflag]);
     ui_printchar(17, 15, 207 | COLOR_TUI[colorflag]);
     ui_printchar(17, 0, 201 | COLOR_TUI[colorflag]);
     ui_printchar(17, 79, 187 | COLOR_TUI[colorflag]);
     ui_printchar(24, 0, 200 | COLOR_TUI[colorflag]);
     ui_printchar(24, 79, 188 | COLOR_TUI[colorflag]);
     ui_printstr(24, 79 - sizeof "[ DOSMid " PVER " ]", "[ DOSMid " PVER " ]", -1, COLOR_TUI[colorflag]);
     /* clear out the background on the 'messages' part of the screen */
     for (y = 18; y < 23; y++) {
       ui_printstr(y, 1, "", 78, COLOR_TEXT[colorflag]);
     }
     /* print static strings */
     if(onlpt) len = sprintf(buffer, "%s port LPT%c", devname, onlpt + '0');
     else len = sprintf(buffer, "%s port %03Xh", devname, mpuport);
     x = 79 - len;
     ui_printstr(18, x, buffer, -1, COLOR_TEMPO[colorflag]);
     ui_printstr(19, x, "Volume", 6, COLOR_TEMPO[colorflag]);
     ui_printstr(20, x, "Format", 6, COLOR_TEMPO[colorflag]);
     ui_printstr(21, x, "Tracks", 6, COLOR_TEMPO[colorflag]);
     ui_printstr(22, x, "Tempo", 5, COLOR_TEMPO[colorflag]);
     ui_printstr(22, 50, MEM_MODE == MEM_XMS ? "XMS" : "MEM", 4, COLOR_TEMPO[colorflag]);
     ui_printstr(22, 54, "used", 9, COLOR_TEMPO[colorflag]);
   }
   /* print notes states on every channel */
   if (*refreshflags & UI_REFRESH_NOTES) {
     for (y = 0; y < 16; y++) {
       if ((*refreshchans & (1 << y)) == 0) continue; /* skip channels that haven't changed */
       for (x = 0; x < 64; x++) {
         int noteflag = 0;
         if (trackinfo->notestates[x << 1] & (1 << y)) noteflag = 2;
         if (trackinfo->notestates[1 + (x << 1)] & (1 << y)) noteflag |= 1;
         switch (noteflag) {
           case 0:
             ui_printchar(1 + y, 16 + x, ' ' | COLOR_NOTES[colorflag] | ((~x << 13) & COLOR_NOTES_HI[colorflag]));
             break;
           case 1:
             ui_printchar(1 + y, 16 + x, 0xde | COLOR_NOTES[colorflag] | ((~x << 13) & COLOR_NOTES_HI[colorflag]));
             break;
           case 2:
             ui_printchar(1 + y, 16 + x, 0xdd | COLOR_NOTES[colorflag] | ((~x << 13) & COLOR_NOTES_HI[colorflag]));
             break;
           case 3:
             ui_printchar(1 + y, 16 + x, 0xdb | COLOR_NOTES[colorflag] | ((~x << 13) & COLOR_NOTES_HI[colorflag]));
             break;
         }
       }
     }
     *refreshchans = 0;
   }
   /* filename and props (format, tracks) */
   if (*refreshflags & UI_REFRESH_FNAME) {
     char tempstr[4], *sptr;
     /* print filename (unless NULL - might happen early at playlist load) */
     if (trackinfo->filename != NULL) {
       ui_printstr(18, 50, trackinfo->filename, 12, COLOR_TEMPO[colorflag]);
     } else {
       ui_printstr(18, 50, "", 12, COLOR_TEMPO[colorflag]);
     }
     /* total allocated memory */
     sprintf(tempstr, "%luK", MEM_TOTALLOC >> 10);
     ui_printstr(22, 59, tempstr, 6, COLOR_TEMPO[colorflag]);

     /* print format */
     switch ((trackinfo->fileformat << 1) | trackinfo->midiformat) {
       case FORMAT_MIDI << 1:
         sptr = "MID0";
         break;
       case (FORMAT_MIDI << 1) | 1:
         sptr = "MID1";
         break;
       case FORMAT_RMID << 1:
         sptr = "RMI0";
         break;
       case (FORMAT_RMID << 1) | 1:
         sptr = "RMI1";
         break;
       case FORMAT_MUS << 1:
         sptr = "MUS";
         break;
       default:
         sptr = "-";
         break;
     }
     ui_printstr(20, 75, sptr, 4, COLOR_TEMPO[colorflag]);
     /* print number of tracks */
     utoa(trackinfo->trackscount, tempstr, 10);
     ui_printstr(21, 75, tempstr, 4, COLOR_TEMPO[colorflag]);
   }
   /* tempo */
   if (*refreshflags & UI_REFRESH_TEMPO) {
     char tempstr[16];
     unsigned long miditempo;
     /* print tempo */
     if (trackinfo->tempo > 0) {
       miditempo = 60000000lu / trackinfo->tempo;
     } else {
       miditempo = 0;
     }
     ultoa(miditempo, tempstr, 10);
     /*strcat(tempstr, "bpm");*/
     ui_printstr(22, 75, tempstr, 4, COLOR_TEMPO[colorflag]);
   }
   /* volume */
   if (*refreshflags & UI_REFRESH_VOLUME) {
     char tempstr[8];
     sprintf(tempstr, "%d%%", volume);
     ui_printstr(19, 75, tempstr, 4, COLOR_TEMPO[colorflag]);
   }
   /* elapsed/total time */
   if (*refreshflags & UI_REFRESH_TIME) {
     char tempstr1[24];
     char tempstr2[16];
     unsigned long perc;
     unsigned int curcol;
     int rpos;
     if (trackinfo->totlen > 0) {
       perc = (trackinfo->elapsedsec * 100) / trackinfo->totlen;
     } else {
       perc = 0;
     }
     sprintf(tempstr1, " %lu:%02lu (%lu%%)     ", trackinfo->elapsedsec / 60, trackinfo->elapsedsec % 60, perc);
     rpos = 78 - sprintf(tempstr2, "%lu:%02lu ", trackinfo->totlen / 60, trackinfo->totlen % 60);
     /* draw the progress bar */
     if (trackinfo->totlen > 0) {
       perc = (trackinfo->elapsedsec * 78) / trackinfo->totlen;
     } else {
       perc = 0;
     }
     for (x = 0; x < 78; x++) {
       if (x < perc) {
         curcol = COLOR_PROGRESS1[colorflag];
       } else {
         curcol = COLOR_PROGRESS2[colorflag];
       }
       if (x < 15) {
         ui_printchar(23, 1 + x, tempstr1[x] | curcol);
       } else if (x >= rpos) {
         ui_printchar(23, 1 + x, tempstr2[x - rpos] | curcol);
       } else {
         ui_printchar(23, 1 + x, ' ' | curcol);
       }
     }
     /* if we have more title nodes than fits on screen, scroll them down now */
     if (trackinfo->titlescount > 5) *refreshflags |= UI_REFRESH_TITLECOPYR;
   }
   /* title and copyright notice */
   if (*refreshflags & UI_REFRESH_TITLECOPYR) {
     int scrolloffset = 0, i;
     if ((trackinfo->titlescount <= 5) || (trackinfo->elapsedsec < 8)) {
       /* simple case */
       for (i = 0; i < 5; i++) {
         ui_printstr(18 + i, 1, trackinfo->title[i], UI_TITLEMAXLEN, COLOR_TEXT[colorflag]);
       }
     } else { /* else scroll down one line every 2s */
       scrolloffset = (trackinfo->elapsedsec >> 1) % (trackinfo->titlescount + 4);
       scrolloffset -= 4;
       for (i = 0; i < 5; i++) {
         if ((i + scrolloffset >= 0) && (i + scrolloffset < trackinfo->titlescount)) {
           ui_printstr(18 + i, 1, trackinfo->title[i + scrolloffset], UI_TITLEMAXLEN, COLOR_TEXT[colorflag]);
         } else {
           ui_printstr(18 + i, 1, "", UI_TITLEMAXLEN, COLOR_TEXT[colorflag]);
         }
       }
     }
   }
   /* programs (patches) names */
   if (*refreshflags & UI_REFRESH_PROGS) {
     unsigned int color;
     for (y = 0; y < 16; y++) {
       color = COLOR_CHANS_DIS[colorflag];
       if (trackinfo->channelsusage & (1 << y)) color = COLOR_CHANS[colorflag];
       if (y == 9) {
         ui_printstr(y + 1, 0, "Percussion", 15, color);
       } else {
         ui_printstr(y + 1, 0, gmset[trackinfo->chanprogs[y]], 15, color);
       }
     }
   }
   /* all refreshed now */
   *refreshflags = 0;
 }


 /* waits for a keypress and return it. Returns 0 for extended keystroke, then
    function must be called again to return scan code. */
 int getkey(void) {
   union REGS regs;
   int res;
   regs.h.ah = 0x08;
   int86(0x21, &regs, &regs);
   res = regs.h.al;
   if (res == 0) { /* extended key - poll again */
     regs.h.ah = 0x08;
     int86(0x21, &regs, &regs);
     res = regs.h.al | 0x100;
   }
   return(res);
 }


 /* poll the keyboard, and return the next input key if any, or -1 */
 int getkey_ifany(void) {
   union REGS regs;
   regs.h.ah = 0x0B;
   int86(0x21, &regs, &regs);
   if (regs.h.al == 0xFF) {
     return(getkey());
   } else {
     return(-1);
   }
 }
	/*
	* User interface routines of DOSMid
	* Copyright (C) 2014-2016 Mateusz Viste
	*/

	#include <dos.h> /* REGS */
	#include <stdlib.h> /* ultoa() */
	#include <stdio.h> /* sprintf() */
	#include <string.h> /* strlen() */

	#include "mem.h" /* MEM_XMS */
	#include "ui.h" /* include self for control */
	#include "version.h"

	/* color scheme 0xBF00 (Background/Foreground/0/0): mono, color */
	const unsigned short COLOR_TUI[2] = {0x0700u, 0x1700u};
	const unsigned short COLOR_NOTES[2] = {0x0700u, 0x1E00u};
	const unsigned short COLOR_NOTES_HI[2] = {0x0000u, 0x8000u}; /* a bit mask for highlighten columns */
	const unsigned short COLOR_TEXT[2] = {0x0700u, 0x1700u};
	const unsigned short COLOR_TEMPO[2] = {0x0700u, 0x1300u};
	const unsigned short COLOR_CHANS[2] = {0x0700u, 0x1200u};
	const unsigned short COLOR_CHANS_DIS[2] = {0x0000u, 0x1800u};
	const unsigned short COLOR_PROGRESS1[2] = {0x7000u, 0x2000u}; /* elapsed time */
	const unsigned short COLOR_PROGRESS2[2] = {0x0700u, 0x8000u}; /* not yet elapsed */
	const unsigned short COLOR_ERRMSG[2] = {0x7000u, 0x4700u};

	unsigned short far *screenptr = NULL;
	static int oldmode = 0;
	static int colorflag = 0;

	extern unsigned long MEM_TOTALLOC; /* total allocated memory from MEM.C */
	extern unsigned short MEM_MODE; /* memory mode (MEM_XMS or MEM_MALLOC) */

	/* prints a character on screen, at position [x,y]. charbyte is a 16bit
	value where higher 8 bits contain the attributes (colors) and lower
	8bits contain the actual character to draw. */
	static void ui_printchar(int y, int x, unsigned short charbyte) {
	screenptr[(y << 6) + (y << 4) + x] = charbyte;
	}

	static void ui_printstr(int y, int x, char *string, int staticlen, unsigned short attrib) {
	int xs;
	/* print out the string first */
	for (xs = 0; string[xs] != 0; xs++) ui_printchar(y, x++, string[xs] \| attrib);
	/* if staticlen is provided, fill the rest with spaces */
	for (; xs < staticlen; xs++) ui_printchar(y, x++, ' ' \| attrib);
	}

	void ui_init(void) {
	union REGS regs;
	/* remember the current mode */
	regs.h.ah = 0x0F; /* get current video mode */
	int86(0x10, &regs, &regs);
	oldmode = regs.h.al;
	/* set text mode 80x25 */
	regs.h.ah = 0x00; /* set video mode */
	screenptr = MK_FP(0xB800, 0);
	colorflag = 0;
	switch (oldmode) {
	case 0: /* 40x25 BW */
	case 2: /* 80x25 BW */
	regs.h.al = 0x02; /* 80x25 BW */
	break;
	case 7: /* 80x25 BW HGC */
	regs.h.al = 0x07; /* 80x25 BW HGC */
	screenptr = MK_FP(0xB000, 0);
	break;
	default:
	colorflag = 1;
	regs.h.al = 0x03; /* 80x25, 16 colors */
	break;
	}
	int86(0x10, &regs, &regs);
	/* disable blinking effect (enables the use of high-intensity backgrounds).
	* This doesn't change anything on DOSemu nor VBox, but DOSbox is unable to
	* display high intensity backgrounds otherwise. */
	regs.x.ax = 0x1003; /* toggle intensity/blinking */
	regs.h.bl = 0; /* enable intensive colors (1 would enable blinking) */
	regs.h.bh = 0; /* to avoid problems on some adapters */
	int86(0x10, &regs, &regs);
	}

	void ui_close(void) {
	union REGS regs;
	regs.h.ah = 0x00; /* set video mode */
	regs.h.al = oldmode;
	int86(0x10, &regs, &regs);
	}

	void ui_hidecursor(void) {
	union REGS regs;
	regs.h.ah = 0x01;
	regs.x.cx = 0x2000;
	int86(0x10, &regs, &regs);
	}

	/* outputs an error message onscreen (title can be NULL) */
	void ui_puterrmsg(char title, char errmsg) {
	int x, y;
	int msglen, titlelen, maxlen;
	int xstart;
	msglen = strlen(errmsg);
	maxlen = msglen;
	if (title != NULL) {
	titlelen = strlen(title);
	if (titlelen > msglen) maxlen = titlelen;
	}
	xstart = 40 - (maxlen >> 1);
	/* draw a red 'box' first */
	for (y = 8; y < 13; y++) {
	for (x = maxlen + 3; x >= 0; x--) {
	ui_printchar(y, xstart + x - 2, ' ' \| COLOR_ERRMSG[colorflag]);
	}
	}
	/* print out the title (if any), and the actual error string */
	if (title != NULL) ui_printstr(8, 40 - (titlelen >> 1), title, titlelen, COLOR_ERRMSG[colorflag]);
	ui_printstr(10, 40 - (msglen >> 1), errmsg, msglen, COLOR_ERRMSG[colorflag]);
	}

	/* draws the UI screen */
	void ui_draw(struct trackinfodata trackinfo, unsigned short refreshflags, unsigned short refreshchans, char devname, unsigned int mpuport, int onlpt, int volume) {
	#include "gm.h" /* GM instruments names */
	int x, y;
	/* draw ascii graphic frames, etc */
	if (*refreshflags & UI_REFRESH_TUI) {
	int len;
	char buffer[32];
	for (x = 0; x < 80; x++) {
	ui_printchar(0, x, 205 \| COLOR_TUI[colorflag]);
	ui_printchar(17, x, 205 \| COLOR_TUI[colorflag]);
	ui_printchar(24, x, 205 \| COLOR_TUI[colorflag]);
	}
	for (y = 1; y < 17; y++) ui_printchar(y, 15, 179 \| COLOR_TUI[colorflag]);
	for (y = 18; y < 24; y++) {
	ui_printchar(y, 0, 186 \| COLOR_TUI[colorflag]);
	ui_printchar(y, 79, 186 \| COLOR_TUI[colorflag]);
	}
	ui_printchar(0, 15, 209 \| COLOR_TUI[colorflag]);
	ui_printchar(17, 15, 207 \| COLOR_TUI[colorflag]);
	ui_printchar(17, 0, 201 \| COLOR_TUI[colorflag]);
	ui_printchar(17, 79, 187 \| COLOR_TUI[colorflag]);
	ui_printchar(24, 0, 200 \| COLOR_TUI[colorflag]);
	ui_printchar(24, 79, 188 \| COLOR_TUI[colorflag]);
	ui_printstr(24, 79 - sizeof "[ DOSMid " PVER " ]", "[ DOSMid " PVER " ]", -1, COLOR_TUI[colorflag]);
	/* clear out the background on the 'messages' part of the screen */
	for (y = 18; y < 23; y++) {
	ui_printstr(y, 1, "", 78, COLOR_TEXT[colorflag]);
	}
	/* print static strings */
	if(onlpt) len = sprintf(buffer, "%s port LPT%c", devname, onlpt + '0');
	else len = sprintf(buffer, "%s port %03Xh", devname, mpuport);
	x = 79 - len;
	ui_printstr(18, x, buffer, -1, COLOR_TEMPO[colorflag]);
	ui_printstr(19, x, "Volume", 6, COLOR_TEMPO[colorflag]);
	ui_printstr(20, x, "Format", 6, COLOR_TEMPO[colorflag]);
	ui_printstr(21, x, "Tracks", 6, COLOR_TEMPO[colorflag]);
	ui_printstr(22, x, "Tempo", 5, COLOR_TEMPO[colorflag]);
	ui_printstr(22, 50, MEM_MODE == MEM_XMS ? "XMS" : "MEM", 4, COLOR_TEMPO[colorflag]);
	ui_printstr(22, 54, "used", 9, COLOR_TEMPO[colorflag]);
	}
	/* print notes states on every channel */
	if (*refreshflags & UI_REFRESH_NOTES) {
	for (y = 0; y < 16; y++) {
	if ((refreshchans & (1 << y)) == 0) continue; / skip channels that haven't changed */
	for (x = 0; x < 64; x++) {
	int noteflag = 0;
	if (trackinfo->notestates[x << 1] & (1 << y)) noteflag = 2;
	if (trackinfo->notestates[1 + (x << 1)] & (1 << y)) noteflag \|= 1;
	switch (noteflag) {
	case 0:
	ui_printchar(1 + y, 16 + x, ' ' \| COLOR_NOTES[colorflag] \| ((~x << 13) & COLOR_NOTES_HI[colorflag]));
	break;
	case 1:
	ui_printchar(1 + y, 16 + x, 0xde \| COLOR_NOTES[colorflag] \| ((~x << 13) & COLOR_NOTES_HI[colorflag]));
	break;
	case 2:
	ui_printchar(1 + y, 16 + x, 0xdd \| COLOR_NOTES[colorflag] \| ((~x << 13) & COLOR_NOTES_HI[colorflag]));
	break;
	case 3:
	ui_printchar(1 + y, 16 + x, 0xdb \| COLOR_NOTES[colorflag] \| ((~x << 13) & COLOR_NOTES_HI[colorflag]));
	break;
	}
	}
	}
	*refreshchans = 0;
	}
	/* filename and props (format, tracks) */
	if (*refreshflags & UI_REFRESH_FNAME) {
	char tempstr[4], *sptr;
	/* print filename (unless NULL - might happen early at playlist load) */
	if (trackinfo->filename != NULL) {
	ui_printstr(18, 50, trackinfo->filename, 12, COLOR_TEMPO[colorflag]);
	} else {
	ui_printstr(18, 50, "", 12, COLOR_TEMPO[colorflag]);
	}
	/* total allocated memory */
	sprintf(tempstr, "%luK", MEM_TOTALLOC >> 10);
	ui_printstr(22, 59, tempstr, 6, COLOR_TEMPO[colorflag]);

	/* print format */
	switch ((trackinfo->fileformat << 1) \| trackinfo->midiformat) {
	case FORMAT_MIDI << 1:
	sptr = "MID0";
	break;
	case (FORMAT_MIDI << 1) \| 1:
	sptr = "MID1";
	break;
	case FORMAT_RMID << 1:
	sptr = "RMI0";
	break;
	case (FORMAT_RMID << 1) \| 1:
	sptr = "RMI1";
	break;
	case FORMAT_MUS << 1:
	sptr = "MUS";
	break;
	default:
	sptr = "-";
	break;
	}
	ui_printstr(20, 75, sptr, 4, COLOR_TEMPO[colorflag]);
	/* print number of tracks */
	utoa(trackinfo->trackscount, tempstr, 10);
	ui_printstr(21, 75, tempstr, 4, COLOR_TEMPO[colorflag]);
	}
	/* tempo */
	if (*refreshflags & UI_REFRESH_TEMPO) {
	char tempstr[16];
	unsigned long miditempo;
	/* print tempo */
	if (trackinfo->tempo > 0) {
	miditempo = 60000000lu / trackinfo->tempo;
	} else {
	miditempo = 0;
	}
	ultoa(miditempo, tempstr, 10);
	/strcat(tempstr, "bpm");/
	ui_printstr(22, 75, tempstr, 4, COLOR_TEMPO[colorflag]);
	}
	/* volume */
	if (*refreshflags & UI_REFRESH_VOLUME) {
	char tempstr[8];
	sprintf(tempstr, "%d%%", volume);
	ui_printstr(19, 75, tempstr, 4, COLOR_TEMPO[colorflag]);
	}
	/* elapsed/total time */
	if (*refreshflags & UI_REFRESH_TIME) {
	char tempstr1[24];
	char tempstr2[16];
	unsigned long perc;
	unsigned int curcol;
	int rpos;
	if (trackinfo->totlen > 0) {
	perc = (trackinfo->elapsedsec * 100) / trackinfo->totlen;
	} else {
	perc = 0;
	}
	sprintf(tempstr1, " %lu:%02lu (%lu%%) ", trackinfo->elapsedsec / 60, trackinfo->elapsedsec % 60, perc);
	rpos = 78 - sprintf(tempstr2, "%lu:%02lu ", trackinfo->totlen / 60, trackinfo->totlen % 60);
	/* draw the progress bar */
	if (trackinfo->totlen > 0) {
	perc = (trackinfo->elapsedsec * 78) / trackinfo->totlen;
	} else {
	perc = 0;
	}
	for (x = 0; x < 78; x++) {
	if (x < perc) {
	curcol = COLOR_PROGRESS1[colorflag];
	} else {
	curcol = COLOR_PROGRESS2[colorflag];
	}
	if (x < 15) {
	ui_printchar(23, 1 + x, tempstr1[x] \| curcol);
	} else if (x >= rpos) {
	ui_printchar(23, 1 + x, tempstr2[x - rpos] \| curcol);
	} else {
	ui_printchar(23, 1 + x, ' ' \| curcol);
	}
	}
	/* if we have more title nodes than fits on screen, scroll them down now */
	if (trackinfo->titlescount > 5) *refreshflags \|= UI_REFRESH_TITLECOPYR;
	}
	/* title and copyright notice */
	if (*refreshflags & UI_REFRESH_TITLECOPYR) {
	int scrolloffset = 0, i;
	if ((trackinfo->titlescount <= 5) \|\| (trackinfo->elapsedsec < 8)) {
	/* simple case */
	for (i = 0; i < 5; i++) {
	ui_printstr(18 + i, 1, trackinfo->title[i], UI_TITLEMAXLEN, COLOR_TEXT[colorflag]);
	}
	} else { /* else scroll down one line every 2s */
	scrolloffset = (trackinfo->elapsedsec >> 1) % (trackinfo->titlescount + 4);
	scrolloffset -= 4;
	for (i = 0; i < 5; i++) {
	if ((i + scrolloffset >= 0) && (i + scrolloffset < trackinfo->titlescount)) {
	ui_printstr(18 + i, 1, trackinfo->title[i + scrolloffset], UI_TITLEMAXLEN, COLOR_TEXT[colorflag]);
	} else {
	ui_printstr(18 + i, 1, "", UI_TITLEMAXLEN, COLOR_TEXT[colorflag]);
	}
	}
	}
	}
	/* programs (patches) names */
	if (*refreshflags & UI_REFRESH_PROGS) {
	unsigned int color;
	for (y = 0; y < 16; y++) {
	color = COLOR_CHANS_DIS[colorflag];
	if (trackinfo->channelsusage & (1 << y)) color = COLOR_CHANS[colorflag];
	if (y == 9) {
	ui_printstr(y + 1, 0, "Percussion", 15, color);
	} else {
	ui_printstr(y + 1, 0, gmset[trackinfo->chanprogs[y]], 15, color);
	}
	}
	}
	/* all refreshed now */
	*refreshflags = 0;
	}


	/* waits for a keypress and return it. Returns 0 for extended keystroke, then
	function must be called again to return scan code. */
	int getkey(void) {
	union REGS regs;
	int res;
	regs.h.ah = 0x08;
	int86(0x21, &regs, &regs);
	res = regs.h.al;
	if (res == 0) { /* extended key - poll again */
	regs.h.ah = 0x08;
	int86(0x21, &regs, &regs);
	res = regs.h.al \| 0x100;
	}
	return(res);
	}


	/* poll the keyboard, and return the next input key if any, or -1 */
	int getkey_ifany(void) {
	union REGS regs;
	regs.h.ah = 0x0B;
	int86(0x21, &regs, &regs);
	if (regs.h.al == 0xFF) {
	return(getkey());
	} else {
	return(-1);
	}
	}