1 files changed, 74 insertions, 0 deletions
diff --git a/tutorials/sndkit/dsp/str/str.h b/tutorials/sndkit/dsp/str/str.h
new file mode 100644
index 0000000..308d671
--- /dev/null
+++ b/tutorials/sndkit/dsp/str/str.h
@@ -0,0 +1,74 @@
+#define FALSE			0
+#define TRUE			1
+
+/* Default device for output */
+#define AUDIONAME		"/dev/dsp"
+
+#define ZCAT			"/usr/bin/zcat"
+
+/* Playback frequency in Hertz:
+ *
+ * 386SX  ->  8000 (or 4000)
+ * 386/25 -> 12000
+ * 486/50 -> 23000
+ */
+#define DEFAULT_DSP_SPEED	44100
+
+#define DSP_DEFAULT_STEREO	TRUE
+
+/* The default sample size can be 8 or 16 bits/sample */
+#define DSP_DEFAULT_SAMPLESIZE	8
+
+typedef struct
+{						/*************************************/
+  char *info;			/* Sample data as a series of bytes  */
+  unsigned int length;		/* Length of sample in bytes         */
+  int volume;			/* Default volume 0-64 (min-max)     */
+  unsigned int rep_start;	/* Byte offset of repeat start       */
+  unsigned int rep_end;		/* Byte offset of repeat end         */
+}
+Voice;				/*************************************/
+
+typedef struct
+{						/*************************************/
+  int period[64][4];		/* Period (pitch) of note        */
+  char sample[64][4];		/* Sample number to use          */
+  char effect[64][4];		/* Effect number (command)       */
+  unsigned char params[64][4];	/* Effect parameters             */
+}
+Pattern;			/*************************************/
+
+typedef struct
+{						/*************************************/
+  unsigned int pointer;		/* Current position in sample        */
+  unsigned int step;		/* Sample offset increment       */
+  int samp;			/* Number of sample currently used   */
+  int pitch;			/* Current pitch             */
+  int volume;			/* Volume of current note (0-64)     */
+  int doarp;			/* TRUE if doing arpeggio        */
+  int arp[3];			/*   The three notes in the arpeggio */
+  int doslide;			/* TRUE if doing slide           */
+  int slide;			/*   Slide speed and direction       */
+  int doporta;			/* TRUE if doing portamento      */
+  int pitchgoal;		/*   Pitch to reach          */
+  int portarate;		/*   Rate at which to approach pitch */
+  int dovib;			/* TRUE if doing vibrato         */
+  int vibspeed;			/*   Speed of vibrato 0-15 << 2      */
+  int vibamp;			/*   Amplitude 0-15          */
+  int viboffs;			/*   Current offset in sine wave     */
+  int doslidevol;		/* TRUE if doing volume slide        */
+  int volslide;			/*   Slide speed 0-64            */
+}
+Channel;			/*************************************/
+
+#define MIN(a, b)		((a) < (b) ? (a) : (b))
+#define MAX(a, b)		((a) > (b) ? (a) : (b))
+
+#define ABUF_SIZE		abuf_size
+
+#ifndef EXIT_SUCCESS
+#define EXIT_SUCCESS		0
+#endif
+#ifndef EXIT_FAILURE
+#define EXIT_FAILURE		1
+#endif