chris@162: /**
chris@162:  * Copyright (c) 2014, 2015, Enzien Audio Ltd.
chris@162:  *
chris@162:  * Permission to use, copy, modify, and/or distribute this software for any
chris@162:  * purpose with or without fee is hereby granted, provided that the above
chris@162:  * copyright notice and this permission notice appear in all copies.
chris@162:  *
chris@162:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
chris@162:  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
chris@162:  * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
chris@162:  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
chris@162:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
chris@162:  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
chris@162:  * PERFORMANCE OF THIS SOFTWARE.
chris@162:  */
chris@162: 
chris@162: #ifndef _HEAVY_BASE_H_
chris@162: #define _HEAVY_BASE_H_
chris@162: 
chris@162: #include "MessageQueue.h"
chris@162: #include "Utils.h"
chris@162: 
chris@162: #define Base(_x) ((HvBase *) _x)
chris@162: 
chris@162: typedef struct HvBase {
chris@162:   int numInputChannels;
chris@162:   int numOutputChannels;
chris@162:   double sampleRate;
chris@162:   hv_uint32_t blockStartTimestamp;
chris@162:   unsigned int numBytes; // the total number of bytes allocated for this patch
chris@162:   void (*f_scheduleMessageForReceiver)(struct HvBase *const, const char *, HvMessage *);
chris@162:   struct HvTable *(*f_getTableForHash)(struct HvBase *const, hv_uint32_t);
chris@162:   MessageQueue mq;
chris@162:   void (*printHook)(double, const char *, const char *, void *);
chris@162:   void (*sendHook)(double, const char *, const HvMessage *const, void *);
chris@162:   char *basePath;
chris@162:   void *userData;
chris@162:   const char *name;
chris@162: } HvBase;
chris@162: 
chris@162: /**
chris@162:  * Schedule a message in the message queue according to its timestamp.
chris@162:  * The copy of the message added to the queue is returned.
chris@162:  */
chris@162: static inline HvMessage *ctx_scheduleMessage(HvBase *_c, const HvMessage *const m,
chris@162:     void (*sendMessage)(HvBase *, int, const HvMessage *), int outletIndex) {
chris@162:   return mq_addMessageByTimestamp(&_c->mq, (HvMessage *) m, outletIndex, sendMessage);
chris@162: }
chris@162: 
chris@162: static inline void ctx_scheduleMessageForReceiver(HvBase *const _c,
chris@162:     const char *name, HvMessage *m) {
chris@162:   _c->f_scheduleMessageForReceiver(_c, name, m);
chris@162: }
chris@162: 
chris@162: void ctx_scheduleMessageForReceiverV(HvBase *const _c, const char *name,
chris@162:     const hv_uint32_t timestamp, const char *format, ...);
chris@162: 
chris@162: void ctx_cancelMessage(HvBase *_c, HvMessage *m,
chris@162:     void (*sendMessage)(HvBase *, int, const HvMessage *));
chris@162: 
chris@162: static inline int ctx_millisecondsToSamples(HvBase *_c, float timeInMs) {
chris@162:   return (int) (timeInMs * _c->sampleRate / 1000.0);
chris@162: }
chris@162: 
chris@162: static inline double ctx_samplesToMilliseconds(HvBase *_c, int samples) {
chris@162:   return 1000.0 * samples / _c->sampleRate;
chris@162: }
chris@162: 
chris@162: static inline double ctx_getSampleRate(HvBase *_c) {
chris@162:   return _c->sampleRate;
chris@162: }
chris@162: 
chris@162: static inline int ctx_getNumInputChannels(HvBase *_c) {
chris@162:   return _c->numInputChannels;
chris@162: }
chris@162: 
chris@162: static inline int ctx_getNumOutputChannels(HvBase *_c) {
chris@162:   return _c->numOutputChannels;
chris@162: }
chris@162: 
chris@162: static inline const char *ctx_getName(HvBase *_c) {
chris@162:   return _c->name;
chris@162: }
chris@162: 
chris@162: /** Returns the first sample of the block. */
chris@162: static inline hv_uint32_t ctx_getBlockStartTimestamp(HvBase *_c) {
chris@162:   return _c->blockStartTimestamp;
chris@162: }
chris@162: 
chris@162: static inline void ctx_setPrintHook(HvBase *const _c, void (*f)(double,
chris@162:     const char *, const char *, void *)) {
chris@162:   _c->printHook = f;
chris@162: }
chris@162: 
chris@162: static inline void ctx_setSendHook(HvBase *const _c, void (*f)(double, const char *, const HvMessage *const, void *)) {
chris@162:   _c->sendHook = f;
chris@162: }
chris@162: 
chris@162: static inline void *ctx_getUserData(HvBase *const _c) {
chris@162:   return _c->userData;
chris@162: }
chris@162: 
chris@162: static inline void ctx_setUserData(HvBase *const _c, void *userData) {
chris@162:   _c->userData = userData;
chris@162: }
chris@162: 
chris@162: void ctx_setBasePath(HvBase *const _c, const char *basePath);
chris@162: 
chris@162: static inline const char *ctx_getBasePath(HvBase *const _c) {
chris@162:   return _c->basePath;
chris@162: }
chris@162: 
chris@162: static inline struct HvTable *ctx_getTableForHash(HvBase *const _c, hv_uint32_t h) {
chris@162:   return _c->f_getTableForHash(_c, h);
chris@162: }
chris@162: 
chris@162: static inline struct HvTable *ctx_getTableForName(HvBase *const _c, const char *tableName) {
chris@162:   return ctx_getTableForHash(_c, msg_symbolToHash(tableName));
chris@162: }
chris@162: 
chris@162: /** Returns the total number of bytes allocated for this patch. */
chris@162: static inline unsigned int ctx_getNumBytes(HvBase *_c) {
chris@162:   return _c->numBytes;
chris@162: }
chris@162: 
chris@162: #endif // _HEAVY_BASE_H_