diff options
Diffstat (limited to 'common.h')
| -rwxr-xr-x | common.h | 96 |
1 files changed, 95 insertions, 1 deletions
@@ -129,6 +129,89 @@ struct t_rhythm_memory_representation // define a return value to express "rhythm not found in this representation"
#define INVALID_RHYTHM 65535
+// chords data structure
+// tells you how many durations there // how can a chord be?
+#define TYPES_NUM 17 // keep me updated
+typedef enum {
+ kMaj=0,
+ kMin=1,
+ kDim=2,
+ kAug=3,
+ kDom7=4,
+ kMaj7=5,
+ kMin7=6,
+ kMinMaj7=7,
+ kDim7=8,
+ kHalfDim7=9,
+ //pland adding 9ths 30.11.05 and beyond
+ kDomb9=10,
+ kMaj9=11,
+ kDom9=12,
+ kMin9=13,
+ kHalfDim9=14,
+ kMinMaj9=15,
+ kDimMaj9=16
+ } chord_type_t;
+
+// how many tones do we have in our octave?
+#define TONES_NUM 12 // keep me updated
+typedef enum {
+ I=0,
+ Id=1,
+ II=2,
+ IId=3,
+ III=4,
+ IV=5,
+ IVd=6,
+ V=7,
+ Vd=8,
+ VI=9,
+ VId=10,
+ VII=11
+ } chord_tone_t;
+
+// how many nodes does this graph have?
+// for now TYPES_NUM*TONES_NUM
+// when we introduce modulation
+// we'll have more
+#define NODES_NUM TYPES_NUM*TONES_NUM
+
+// this defines a chord in a tonality
+typedef struct _chord
+{
+ chord_type_t mode;
+ chord_tone_t note;
+} chord_t;
+
+// enumeration of absolute notes
+// i'll need this when parsing strings like "C major"
+typedef enum {
+ C=0,
+ Db=1,
+ D=2,
+ Eb=3,
+ E=4,
+ F=5,
+ Gb=6,
+ G=7,
+ Ab=8,
+ A=9,
+ Bb=10,
+ B=11
+ } abs_note_t;
+
+// enumeration of modes
+// i'll start with minor and major only
+// but we could add phrigian, doric, misolidian ,e tc...
+#define MODES_NUM 2
+typedef enum {
+ MAJOR=0,
+ MINOR=1 } modes_t;
+
+#define MODULATIONS_NUM MODES_NUM*TONES_NUM
+
+
+
// ------------------------------------------------ functions
// ----------- rhythm manipolation functions
@@ -139,7 +222,7 @@ t_duration int2duration(int n); // converts from duration to integer: used to know this duration
// what corresponds in terms table index
unsigned short int duration2int(t_duration dur);
-// tells you how many durations there are
+
int possible_durations();
// converts from float (0-1) to duration. it performs quantization
@@ -287,3 +370,14 @@ void concatenateNote(t_note_event *currentEvent, unsigned short int voice, float // used to free the memory allocated by this list
void freeNotes(t_note_event *currentEvent);
+
+
+
+// ------------- function for string manipulation (from string to chords)
+
+// tries to find out absolute tones names in this string
+abs_note_t from_string_to_abs_tone(const char *substr);
+chord_type_t from_string_to_type(const char *substr);
+modes_t from_string_to_mode(const char *substr);
+chord_type_t string2mode(const char *substr);
+abs_note_t string2note(const char *substr);
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