mdw@git.distorted.org.uk Git - mup/blob - mup/mup/globals.c

   1 /* Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006
   2  * by Arkkra Enterprises */
   3 /* All rights reserved */
   4 /*
   5  *      globals.c
   6  *
   7  *      This files defines all the global variables used in more than one
   8  *      file, except for ones that are used only by yacc and lex.
   9  */
  10
  11 #include "structs.h"
  12 #include "rational.h"
  13 #include "globals.h"
  14
  15 /*
  16  * Define the fixed SSV structures, which accumulate attributes of the
  17  * score, staffs, and voices.
  18  */
  19 struct SSV Score;
  20 struct SSV Staff[MAXSTAFFS];
  21 struct SSV Voice[MAXSTAFFS][MAXVOICES];
  22
  23 /*
  24  * Define command line requested staff and voice visibilities.  Each value is
  25  * YES or NO.
  26  */
  27 short Staff_vis[MAXSTAFFS + 1];
  28 short Voice_vis[MAXSTAFFS + 1][MAXVOICES + 1];
  29
  30 /*
  31  * Define head and tail cells of the main linked list set up by the parser.
  32  */
  33 struct MAINLL *Mainllhc_p;
  34 struct MAINLL *Mainlltc_p;
  35
  36 int Optch = OPTION_MARKER;      /* character for command line options */
  37 int Mupmate = NO;               /* was Mup called from Mupmate? */
  38 int Errorcount;         /* number of errors found so far */
  39 int Maxverses;          /* maximum number of verse numbers used in the song */
  40 short Meas_num = 1;     /* count measure numbers */
  41 int Preproc = NO;       /* was -E specified on command line? */
  42 int Ppcomments = NO;    /* was -C specified on command line? */
  43
  44 int Context = C_MUSIC;
  45 int Curr_family = BASE_TIMES;
  46 int Curr_font = FONT_TR;
  47 int Curr_size = DFLT_SIZE;
  48 int Got_some_data = NO;
  49 int Doing_tab_staff;    /* YES while parsing a line for a tab staff, else NO */
  50 int Doing_MIDI = NO;
  51 char *Curr_filename;
  52 char *Outfilename = "";
  53 int Vflag = NO;
  54 int Vcombused = NO;     /* was the voicecombine parameter ever used? */
  55 int CSBused = NO;       /* was cross staff beaming used in this song? */
  56 int CSSused = NO;       /* was cross staff stemming used in this song? */
  57 int CSSpass = NO;       /* YES while doing a special pass for cross staff stem*/
  58
  59 /*
  60  * Due to read ahead, we may already be on the following line when generating
  61  * an error message, so need to know when to compensate by subtracting
  62  * 1 from the current line number.
  63  */
  64 int Last_was_newline = NO;
  65
  66 /*
  67  * The following table lets you conveniently find the character name of any
  68  * note head type of form GF_NORMAL.  It is to be indexed like this:
  69  *      headchar = Hctab [ basictime > 2 ? 3 : basictime ];
  70  */
  71 unsigned char Hctab [] = {
  72         C_DBLWHOLE,     C_1N,   C_2N,   C_4N
  73 };
  74
  75 /*
  76  * This table is like Hctab, but for X notes.  Note that for half notes and
  77  * longer, we actually draw the note as a diamond instead of an X.
  78  */
  79 unsigned char Xhctab[] = {
  80         C_DWHDIAMOND,   C_DIAMOND,      C_DIAMOND,       C_XNOTE
  81 };
  82
  83 /*
  84  * This table is like Hctab, but for diamond shaped notes.
  85  */
  86 unsigned char Dhctab[] = {
  87         C_DWHDIAMOND,   C_DIAMOND,      C_DIAMOND,       C_FILLDIAMOND
  88 };
  89
  90 /*
  91  * The following table lets you conveniently find the character name of any
  92  * rest type, whole or shorter.  It is to be indexed by log2(basictime).
  93  */
  94 unsigned char Resttab[] = {
  95         C_LL1REST, C_LL2REST, C_4REST, C_8REST, C_16REST, C_32REST, C_64REST,
  96         C_128REST, C_256REST,
  97 };
  98
  99 /*
 100  * The following table tells how many letters up from C each note is.  It is
 101  * to be indexed by (noteletter - 'a').
 102  */
 103 int Letshift[] = { 5, 6, 0, 1, 2, 3, 4, };
 104                 /* a  b  c  d  e  f  g */
 105
 106 /* the note letters in the order of the circle of fifths */
 107 char Circle[] = "fcgdaeb";
 108
 109 /* internal accidental letters */
 110 char Acclets[] = "B&n#x";
 111
 112 /* external accidental symbols */
 113 char *Acctostr[] = { "&&", "&", "", "#", "x" };
 114
 115 /*
 116  * Define strings for pedstyle = pedstar ("Ped." and the star).
 117  */
 118 char Ped_start[] = { FONT_ZI, 18, 'P', 'e', 'd', '.', '\0' };
 119 char Ped_stop[] =  { FONT_ZD, 14, 'j', '\0' };
 120
 121 /*
 122  * Define the string info for standard guitar tuning.  Note that the octaves
 123  * are for how it should be printed; the actual sound is an octave lower.
 124  * When outputting MIDI, we check whether the tablature staff is using this
 125  * default array, and if so, automatically transpose down by 12 halfsteps.
 126  */
 127 struct STRINGINFO Guitar[DEFTABLINES] = {
 128         { 'e', '\0', 0, 5 },
 129         { 'b', '\0', 0, 4 },
 130         { 'g', '\0', 0, 4 },
 131         { 'd', '\0', 0, 4 },
 132         { 'a', '\0', 0, 3 },
 133         { 'e', '\0', 1, 3 },
 134 };
 135
 136 /*
 137  * These arrays are used to keep track of things while adjusting the pitches
 138  * of notes to account for octave marks. They are indexed by staff number,
 139  * so element 0 of each array is unused. Octave mark related transposition
 140  * is done both in MIDI code and trantab code.
 141  */
 142 int Octave_adjust[MAXSTAFFS+1]; /* how many octaves to adjust due to
 143                                  * user-specified octave marks */
 144 int Octave_bars[MAXSTAFFS+1];   /* how many bar lines to cross with
 145                                  * current Octave_adjust (if Octave_adjust is
 146                                  * zero, this variable is meaningless) */
 147 float Octave_count[MAXSTAFFS+1];/* number of counts into measure that
 148                                  * Octave_adjust applies in measure after
 149                                  * Octave_bars have gone by. (if Octave_adjust
 150                                  * is zero, this variable is meaningless */
 151 /*
 152  * Define fixed location variables.  For all of these, only the absolute
 153  * coordinates are used.
 154  */
 155 float _Page     [NUMCTYPE];     /* whole page */
 156 float _Win      [NUMCTYPE];     /* middle (music) window */
 157 float _Cur      [NUMCTYPE];     /* current position */
 158
 159 /*
 160  * Define the structures for headers and footers.
 161  */
 162 struct BLOCKHEAD Header;        /* first page header */
 163 struct BLOCKHEAD Footer;        /* first page footer */
 164 struct BLOCKHEAD Header2;       /* later page header */
 165 struct BLOCKHEAD Footer2;       /* later page footer */
 166
 167 /*
 168  * used by print phase to keep track of current staff locations
 169  */
 170 float *Score_location_p;        /* score coord from FEED struct */
 171 float Staffs_y[MAXSTAFFS + 1];  /* absolute Y of the staffs of a score */
 172
 173 /*
 174  * While constructing a GRPSYL list of groups or lyrics, or a list of STUFF,
 175  * any of which could be being defining for multiple staffs at once and/or more
 176  * than one vno, keep a pointer to the list of staffs and vnos being defined.
 177  * Once we gather an entire line of input, the GRPSYL list or STUFF list is
 178  * cloned for each staff being defined, and the information is moved to be
 179  * associated with the appropriate STAFF structs.
 180  */
 181 struct RANGELIST *Staffrange_p;
 182 struct RANGELIST *Vnorange_p;
 183
 184 /*
 185  * During parse phase, this keeps track of the place (PL_ABOVE, PL_BELOW,
 186  * or PL_BETWEEN) of the current thing being collected (groups, lyrics,
 187  * or stuff).
 188  */
 189 short Place;
 190
 191 /*
 192  * Snapshot of the state of pedals at the beginning of endings.
 193  * The zeroth element of the array is used as a flag. If it is YES,
 194  * the rest of the array contains the pedal state for each staff,
 195  * YES for pedal on, NO for off. If the zeroth element is NO,
 196  * the rest of the array is meaningless.
 197  */
 198 short Ped_snapshot[MAXSTAFFS + 1];
 199
 200 /* table to give a quick mapping from staff number to STAFF struct */
 201 struct MAINLL *Staffmap_p[MAXSTAFFS + 1];
 202
 203 /* pointer to beginning of all the STAFF structs in current measure */
 204 struct MAINLL *List_of_staffs_p;
 205
 206 struct SVRANGELIST *Svrangelist_p;
 207
 208 /* beginning of the list of GRPSYL structs currently being built */
 209 struct GRPSYL *Curr_gs_list_p;
 210
 211 /* If 0, no multirest in current measure yet.
 212  * If 1, got a multirest.
 213  * If 2, got both a multirest and music data */
 214 short Got_multirest;
 215
 216 /* YES if input contained at least one group in the current measure */
 217 short Got_group;
 218
 219 short Pagenum;                  /* which page we are currently printing */
 220 int Last_pagenum;               /* page number of the final page */
 221
 222 /* set to YES if given font is used somewhere */
 223 short Font_used[MAXFONTS];
 224
 225 /* items used when chord grids are to be printed at the end of the song */
 226 struct ATEND_INFO Atend_info;
 227
 228 /*
 229  * Define a variable for a staff's staffscale, and other variables which are
 230  * staffscale times the corresponding macro symbol in all caps.  This is to
 231  * avoid recalculating these all the time.  These variables are for use in
 232  * files where a main function loops over staffs, and calls a tree of
 233  * subroutines for each staff.  The main function should set these variables
 234  * for the current staff, and from there on the code can use them.  Early in
 235  * Mup they are initialized to their default values by doing initstructs()
 236  * and set_staffscale(0), so that everywhere before the point where staff
 237  * scaling begins (in restsyl.c) they are set to these default values, and
 238  * code before there can call utilities that use these symbols and no scaling
 239  * will result.
 240  */
 241 float Staffscale;       /* for this staff */
 242 float Stdpad;           /* STDPAD on this staff */
 243 float Stepsize;         /* STEPSIZE on this staff */
 244 float Flagsep;          /* FLAGSEP on this staff */
 245 float Smflagsep;        /* SMFLAGSEP on this staff */
 246 float Tupheight;        /* TUPHEIGHT on this staff */
 247
 248 /* define rational number constants that may be useful in multiple files */
 249 RATIONAL Zero = {0,1};
 250 RATIONAL One_fourth = {1,4};
 251 RATIONAL One_third = {1,3};
 252 RATIONAL One_half = {1,2};
 253 RATIONAL Two_thirds = {2,3};
 254 RATIONAL Three_fourths = {3,4};
 255 RATIONAL One = {1,1};
 256 RATIONAL Two = {2,1};
 257 RATIONAL Three = {3,1};
 258 RATIONAL Four = {4,1};
 259
 260 /*
 261  * Define something longer than the longest possible measure.  See the comment
 262  * by the #define for MAXTSLEN.
 263  */
 264 RATIONAL Maxtime = {(MAXTSLEN - 3) * 99 + 1, 1};
 265
 266 int Debuglevel;                 /* bitmap of what message classes to print */