diff options
| author | Davide Morelli <morellid@users.sourceforge.net> | 2005-11-29 18:04:09 +0000 |
|---|---|---|
| committer | Davide Morelli <morellid@users.sourceforge.net> | 2005-11-29 18:04:09 +0000 |
| commit | 8911ddbc575c4714c5ac294dd32bbd9ab4278a2d (patch) | |
| tree | a02a04e2ab02abc133a5c96b70788f9da9fb48c0 /common.h | |
| parent | eb9ef05774af20edb43118182834c18a4ac70707 (diff) | |
adding shared functions
svn path=/trunk/externals/frankenstein/; revision=4081
Diffstat (limited to 'common.h')
| -rwxr-xr-x | common.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/common.h b/common.h new file mode 100755 index 0000000..07b15e1 --- /dev/null +++ b/common.h @@ -0,0 +1,81 @@ +// here i put common data structures and functions
+
+// --------- theme notation
+
+// data structures
+
+typedef struct _note
+{
+ unsigned short int played; // 0 if is a rest, 1 if played
+ unsigned short int chord; // 0 if is not a chord (strong) note, 1 if it is
+ unsigned short int diatonic; // 0 if is a note not belonging to this tonality
+ int interval; // semitones from prefious note
+} t_note;
+
+typedef struct _duration
+{
+ int numerator; // like in music notation: in a 1/4 note the numerator is 1
+ int denominator; // like in music notation: in a 1/4 note the denominator is 4
+} t_duration;
+
+typedef struct _note_event
+{
+ unsigned short int voice;
+ t_note note;
+ t_duration duration;
+ struct t_note_event *previous; // this is a list, link to the previous element
+ struct t_note_event *next; // this is a list, link to the next element
+} t_note_event;
+
+// manipolation functions
+
+// TODO:
+// - from data structures to lists of numbers and vice versa
+// - from a (voice, rest, duration) representation to (voice, start, duration) and viceversa
+
+// --------- rhythm notation
+
+// data structures
+
+typedef struct _rhythm_event
+{
+ unsigned short int voice;
+ t_duration duration;
+ struct t_rhythm_event *previous; // this is a list, link to the previous element
+ struct t_rhythm_event *next; // this is a list, link to the next element
+} t_rhythm_event;
+
+// rhythms memory graph
+
+/*
+// list implementation
+// this implements a graph that stores the memory of the current rhythm sub-elements
+// list of links
+typedef struct _rhythm_memory_arc
+{
+ float weight;
+ struct t_rhythm_memory_node *to_node; // the target of this link (arc)
+ struct t_rhythm_memory_arc *next_arc; // next link in the list
+} t_rhythm_memory_arc;
+// graph node
+typedef struct _rhythm_memory_node
+{
+ t_duration duration;
+ struct t_rhythm_memory_arc *arcs; // the list of arcs to other nodes
+} t_rhythm_memory_node;
+*/
+// with a table
+// simpler and most of all non recursive when searching nodes!
+#define num_possible_denominators 11
+unsigned short int possible_denominators[] = {1,2,3,4,6,8,12,16,18,24,32};
+// functions needed to fill and use the memory table
+t_duration int2duration(int n);
+unsigned short int duration2int(t_duration dur);
+int possible_durations();
+
+// manipolation functions
+
+// TODO:
+// - from data structures to lists of numbers and vice versa
+// - from a (voice, duration) representation to (voice, start, duration) and viceversa
+
|