1 files changed, 84 insertions, 0 deletions
diff --git a/flow/gsl/gsloscillator.h b/flow/gsl/gsloscillator.h
new file mode 100644
index 0000000..24223fc
--- /dev/null
+++ b/flow/gsl/gsloscillator.h
@@ -0,0 +1,84 @@
+/* GSL - Generic Sound Layer
+ * Copyright (C) 1999, 2000-2002 Tim Janik
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library 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 Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+#ifndef __GSL_OSCILLATOR_H__
+#define __GSL_OSCILLATOR_H__
+
+#include <gsl/gsldefs.h>
+#include <gsl/gslosctable.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/* --- structures --- */
+typedef struct
+{
+  GslOscTable	*table;
+  guint		 exponential_fm : 1;
+  gfloat	 fm_strength;		/* linear: 0..1, exponential: n_octaves */
+  gfloat	 self_fm_strength;	/* 0..1 */
+  gfloat	 phase;			/* -0.5..+0.5 */
+  gfloat	 cfreq;			/* for ifreq == NULL */
+  gfloat	 pulse_width;		/* 0..1 */
+  gfloat	 pulse_mod_strength;	/* 0..0.5 */
+  gint		 fine_tune;		/* -100..+100 */
+} GslOscConfig;
+typedef struct
+{
+  GslOscConfig	 config;
+  guint		 last_mode;
+  guint32	 cur_pos, last_pos;
+  gfloat	 last_sync_level;
+  gdouble	 last_freq_level;
+  gfloat	 last_pwm_level;
+  GslOscWave	 wave;
+  /* pwm */
+  guint32	 pwm_offset;
+  gfloat	 pwm_max, pwm_center;
+} GslOscData;
+
+
+/* --- Oscillator --- */
+void	gsl_osc_config		(GslOscData	*osc,
+				 GslOscConfig	*config);
+void	gsl_osc_process		(GslOscData	*osc,
+				 guint		 n_values,
+				 const gfloat	*ifreq,
+				 const gfloat	*imod,
+				 const gfloat	*isync,
+				 gfloat		*mono_out,
+				 gfloat		*sync_out);
+void	gsl_osc_process_pulse	(GslOscData	*osc,
+				 guint		 n_values,
+				 const gfloat	*ifreq,
+				 const gfloat	*imod,
+				 const gfloat	*isync,
+				 const gfloat	*ipwm,
+				 gfloat		*mono_out,
+				 gfloat		*sync_out);
+
+
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __GSL_OSCILLATOR_H__ */