- initial import

git-svn-id: http://moon:8086/svn/software/trunk/projects/JaySynth@37 b431acfa-c32f-4a4a-93f1-934dc6c82436
2014-10-25 07:27:55 +00:00
commit 843c6e300c
75 changed files with 40248 additions and 0 deletions
@@ -0,0 +1,94 @@
+// --------------------------------------------------------------
+// --------------------------------------------------------------
+#ifndef _ENV_H_
+#define	_ENV_H_
+
+#include "synth_defs.h"
+
+#define ENV_TOL			((synth_float_t)(1E-4))
+#define ENV_KE			((synth_float_t)(1-exp(-1)))
+
+#define ENV_MIN_A		(0.001)		// s
+#define ENV_MIN_D		(0.005)		// s
+#define ENV_MIN_R		(0.005)		// s
+
+// --------------------------------------------------------------
+// Types
+// --------------------------------------------------------------
+enum
+{
+	ENV_PARAM2_A,
+	ENV_PARAM2_D,
+	ENV_PARAM2_S,
+	ENV_PARAM2_R,
+	ENV_PARAM2_END
+};
+
+enum
+{
+	env_state_idle = 0,
+	env_state_attack,
+	env_state_attack_retrigger,
+	env_state_decay,
+	env_state_sustain,
+	env_state_release
+};
+
+enum
+{
+	env_event_trigger = 0,
+	env_event_retrigger,
+	env_event_release,
+};
+
+typedef struct _senv_param_t
+{
+	synth_float_t Ta;
+	synth_float_t Td;
+	synth_float_t Vs;
+	synth_float_t Tr;
+
+} env_param_t;
+
+typedef struct _senvgen_t
+{
+	synth_float_t fs;
+	UINT32 bufsize;
+	UINT32 state;
+	env_param_t param;
+	synth_float_t k, s, sr, sf;
+	synth_float_t a_a, b_a;
+	synth_float_t a_d, b_d;
+	synth_float_t a_r, b_r;
+	synth_float_t *pOut;
+
+} envgen_t;
+
+// --------------------------------------------------------------
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+// --------------------------------------------------------------
+// Exported functions
+// --------------------------------------------------------------
+void ENV_Init(envgen_t *pObj, synth_float_t fs);
+void ENV_Free(envgen_t *pObj);
+void ENV_Reset(envgen_t *pObj);
+void ENV_SetBufsize(envgen_t *pObj, UINT32 size);
+void ENV_SetFS(envgen_t *pObj, synth_float_t fs);
+void ENV_Event(envgen_t *pObj, UINT32 type);
+void ENV_Param2Set(envgen_t *pObj, UINT32 type, synth_float_t value);
+UINT32 ENV_ParamGet(envgen_t *pObj, UINT32 type);
+
+INT32 ENV_IsIdle(envgen_t *pObj);
+INT32 ENV_IsStage(envgen_t *pObj, UINT32 stage_num);
+synth_float_t* ENV_ProcessDataV(envgen_t *pObj, UINT32 len);
+
+#if defined(__cplusplus)
+}
+
+#endif
+// --------------------------------------------------------------
+
+#endif // _ENV_H_