--- /dev/null
+/* scherzo - Music notation training
+ *
+ * pitch.h - Common structures and functions for pitches, etc.
+ *
+ * Copyright © 2010,2013 Carl Worth
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://www.gnu.org/licenses/ .
+ */
+
+#define PITCH_ACCIDENTAL_MASK 0x07
+#define PITCH_ACCIDENTAL_SHIFT 0
+
+typedef enum pitch_accidental
+{
+ PITCH_ACCIDENTAL_DOUBLE_FLAT,
+ PITCH_ACCIDENTAL_FLAT,
+ PITCH_ACCIDENTAL_NATURAL,
+ PITCH_ACCIDENTAL_SHARP,
+ PITCH_ACCIDENTAL_DOUBLE_SHARP
+} pitch_accidental_t;
+
+#define PITCH_ACCIDENTAL(pitch) (((pitch) & PITCH_ACCIDENTAL_MASK) >> PITCH_ACCIDENTAL_SHIFT)
+
+#define PITCH_NAME_MASK 0x38
+#define PITCH_NAME_SHIFT 3
+
+typedef enum pitch_name
+{
+ PITCH_NAME_C,
+ PITCH_NAME_D,
+ PITCH_NAME_E,
+ PITCH_NAME_F,
+ PITCH_NAME_G,
+ PITCH_NAME_A,
+ PITCH_NAME_B,
+} pitch_name_t;
+
+#define PITCH_NAME(pitch) (((pitch) & PITCH_NAME_MASK) >> PITCH_NAME_SHIFT)
+
+#define PITCH(name, accidental) (((name) << PITCH_NAME_SHIFT) | (accidental))
+
+#define PITCH_LITERAL(literal_name, literal_accidental) PITCH(PITCH_NAME_##literal_name, PITCH_ACCIDENTAL_##literal_accidental)
+
+typedef enum pitch
+{
+ PITCH_Cff = PITCH_LITERAL (C, DOUBLE_FLAT),
+ PITCH_Cf = PITCH_LITERAL (C, FLAT),
+ PITCH_C = PITCH_LITERAL (C, NATURAL),
+ PITCH_Cs = PITCH_LITERAL (C, SHARP),
+ PITCH_Css = PITCH_LITERAL (C, DOUBLE_SHARP),
+
+ PITCH_Dff = PITCH_LITERAL (D, DOUBLE_FLAT),
+ PITCH_Df = PITCH_LITERAL (D, FLAT),
+ PITCH_D = PITCH_LITERAL (D, NATURAL),
+ PITCH_Ds = PITCH_LITERAL (D, SHARP),
+ PITCH_Dss = PITCH_LITERAL (D, DOUBLE_SHARP),
+
+ PITCH_Eff = PITCH_LITERAL (E, DOUBLE_FLAT),
+ PITCH_Ef = PITCH_LITERAL (E, FLAT),
+ PITCH_E = PITCH_LITERAL (E, NATURAL),
+ PITCH_Es = PITCH_LITERAL (E, SHARP),
+ PITCH_Ess = PITCH_LITERAL (E, DOUBLE_SHARP),
+
+ PITCH_Fff = PITCH_LITERAL (F, DOUBLE_FLAT),
+ PITCH_Ff = PITCH_LITERAL (F, FLAT),
+ PITCH_F = PITCH_LITERAL (F, NATURAL),
+ PITCH_Fs = PITCH_LITERAL (F, SHARP),
+ PITCH_Fss = PITCH_LITERAL (F, DOUBLE_SHARP),
+
+ PITCH_Gff = PITCH_LITERAL (G, DOUBLE_FLAT),
+ PITCH_Gf = PITCH_LITERAL (G, FLAT),
+ PITCH_G = PITCH_LITERAL (G, NATURAL),
+ PITCH_Gs = PITCH_LITERAL (G, SHARP),
+ PITCH_Gss = PITCH_LITERAL (G, DOUBLE_SHARP),
+
+ PITCH_Aff = PITCH_LITERAL (A, DOUBLE_FLAT),
+ PITCH_Af = PITCH_LITERAL (A, FLAT),
+ PITCH_A = PITCH_LITERAL (A, NATURAL),
+ PITCH_As = PITCH_LITERAL (A, SHARP),
+ PITCH_Ass = PITCH_LITERAL (A, DOUBLE_SHARP),
+
+ PITCH_Bff = PITCH_LITERAL (B, DOUBLE_FLAT),
+ PITCH_Bf = PITCH_LITERAL (B, FLAT),
+ PITCH_B = PITCH_LITERAL (B, NATURAL),
+ PITCH_Bs = PITCH_LITERAL (B, SHARP),
+ PITCH_Bss = PITCH_LITERAL (B, DOUBLE_SHARP)
+} pitch_t;