| 1 |
/* |
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MDEvent.c |
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Created by Toshi Nagata, 2000.11.23. |
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|
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Copyright (c) 2000-2016 Toshi Nagata. All rights reserved. |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation version 2 of the License. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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|
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#include "MDHeaders.h" |
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|
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#include <string.h> /* for memset() */ |
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#include <stdlib.h> /* for malloc(), realloc(), free() */ |
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#include <stdio.h> /* for sprintf() */ |
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#include <ctype.h> /* for isspace(), tolower() */ |
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|
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#ifdef __MWERKS__ |
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#pragma mark ====== Private definitions ====== |
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#endif |
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|
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struct MDMessage { |
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int32_t refCount; |
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int32_t length; |
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unsigned char msg[4]; /* variable length */ |
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}; |
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|
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/* ------------------------------------------------------------------- |
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MDEvent macros --- for private use only |
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------------------------------------------------------------------- */ |
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#define MDPrivateGetMessage(eventPtr) ((eventPtr)->u.message) |
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#define MDPrivateSetMessage(eventPtr, theMsg) ((eventPtr)->u.message = (theMsg)) |
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#define MDPrivateGetDataPtr(eventPtr) ((eventPtr)->u.dataptr) |
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#define MDPrivateSetDataPtr(eventPtr, theData) ((eventPtr)->u.dataptr = (theData)) |
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/* |
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#define MDPrivateGetObject(eventPtr) ((eventPtr)->u.objptr) |
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#define MDPrivateSetObject(eventPtr, theObj) ((eventPtr)->u.objptr = (theObj)) |
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*/ |
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|
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static unsigned char sIsNote60C4 = 0; |
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|
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/* -------------------------------------- |
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��� MDMessageRetain |
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-------------------------------------- */ |
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static void |
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MDMessageRetain(MDMessage *msgRef) |
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{ |
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msgRef->refCount++; |
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} |
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|
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/* -------------------------------------- |
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��� MDMessageRelease |
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-------------------------------------- */ |
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static void |
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MDMessageRelease(MDMessage *msgRef) |
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{ |
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msgRef->refCount--; |
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if (msgRef->refCount <= 0) |
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free(msgRef); |
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} |
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|
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/* -------------------------------------- |
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��� MDMessageReallocate |
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-------------------------------------- */ |
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static MDMessage * |
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MDMessageReallocate(MDMessage *msgRef, int32_t length) |
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{ |
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MDMessage *newMsg; |
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int32_t newLength; |
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|
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if (length < 4) |
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newLength = sizeof(*newMsg); |
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else |
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newLength = sizeof(*newMsg) - 4 + 1 + length; /* One extra byte for terminating null */ |
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|
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if (msgRef == NULL) |
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newMsg = (MDMessage *)malloc(newLength); |
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else if (msgRef->refCount == 1) |
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newMsg = (MDMessage *)realloc(msgRef, newLength); |
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else { |
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newMsg = (MDMessage *)malloc(newLength); |
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if (newMsg != NULL) { |
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int32_t minLength = (msgRef->length > length ? length : msgRef->length); |
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msgRef->refCount--; |
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memmove(newMsg->msg, msgRef->msg, minLength + 1); |
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} |
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} |
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if (newMsg != NULL) { |
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newMsg->length = length; |
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newMsg->msg[length] = 0; /* Null-terminate transparently */ |
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newMsg->refCount = 1; |
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return newMsg; |
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} else return NULL; |
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} |
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|
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#ifdef __MWERKS__ |
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#pragma mark ====== Initialization ====== |
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#endif |
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|
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/* -------------------------------------- |
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��� MDEventInit |
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-------------------------------------- */ |
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void |
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MDEventInit(MDEvent *eventRef) |
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{ |
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memset(eventRef, 0, sizeof(*eventRef)); |
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} |
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|
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/* -------------------------------------- |
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��� MDEventClear |
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-------------------------------------- */ |
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void |
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MDEventClear(MDEvent *eventRef) |
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{ |
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if (MDHasEventMessage(eventRef)) { |
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if (MDPrivateGetMessage(eventRef) != NULL) |
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MDMessageRelease(MDPrivateGetMessage(eventRef)); |
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} else if (MDHasEventData(eventRef)) { |
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if (MDPrivateGetDataPtr(eventRef) != NULL) |
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free(MDPrivateGetDataPtr(eventRef)); |
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/* } else if (MDHasEventObject(eventRef)) { |
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if (MDPrivateGetObject(eventRef) != NULL) |
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MDReleaseObject(MDPrivateGetObject(eventRef)); |
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*/ |
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} |
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MDEventInit(eventRef); |
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} |
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|
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/* -------------------------------------- |
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��� MDEventClear |
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-------------------------------------- */ |
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void |
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MDEventDefault(MDEvent *eventRef, int kind) |
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{ |
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int n; |
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unsigned char *ucp; |
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MDEventInit(eventRef); |
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MDSetKind(eventRef, kind); |
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switch (kind) { |
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case kMDEventTempo: |
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MDSetTempo(eventRef, 120.0f); break; |
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case kMDEventTimeSignature: |
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ucp = MDGetMetaDataPtr(eventRef); |
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ucp[0] = 4; ucp[1] = 2; ucp[2] = 24; ucp[3] = 8; break; |
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case kMDEventSysex: |
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case kMDEventSysexCont: |
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n = (kind == kMDEventSysex ? 1 : 0); |
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if (MDSetMessageLength(eventRef, n) < 0) |
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return; /* Out of memory */ |
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if (n == 1) { |
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static const unsigned char sF0 = 0xf0; |
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MDSetMessage(eventRef, &sF0); |
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} |
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break; |
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case kMDEventMetaMessage: |
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case kMDEventMetaText: |
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if (MDSetMessageLength(eventRef, 1) < 0) |
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return; /* Out of memory */ |
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MDSetMessage(eventRef, (const unsigned char *)""); /* null C-string */ |
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break; |
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case kMDEventNote: |
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MDSetData1(eventRef, 0x7f00); |
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MDSetDuration(eventRef, 1); |
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break; |
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} |
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} |
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|
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#ifdef __MWERKS__ |
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#pragma mark ====== Move/Copy ====== |
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#endif |
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|
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/* -------------------------------------- |
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��� MDEventCopy |
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-------------------------------------- */ |
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void |
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MDEventCopy(MDEvent *destRef, const MDEvent *sourceRef, int32_t count) |
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{ |
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if (destRef == sourceRef || count == 0) |
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return; |
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if (destRef < sourceRef) { |
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while (count-- > 0) { |
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*destRef = *sourceRef; |
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if (MDHasEventMessage(destRef)) |
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MDMessageRetain(MDPrivateGetMessage(destRef)); |
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destRef++; |
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sourceRef++; |
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} |
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} else { |
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destRef += count; |
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sourceRef += count; |
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while (count-- > 0) { |
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destRef--; |
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sourceRef--; |
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*destRef = *sourceRef; |
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if (MDHasEventMessage(destRef)) |
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MDMessageRetain(MDPrivateGetMessage(destRef)); |
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} |
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} |
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} |
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|
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/* -------------------------------------- |
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��� MDEventMove |
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-------------------------------------- */ |
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void |
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MDEventMove(MDEvent *destRef, MDEvent *sourceRef, int32_t count) |
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{ |
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if (destRef == sourceRef || count == 0) |
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return; |
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if (destRef < sourceRef) { |
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while (count-- > 0) { |
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*destRef = *sourceRef; |
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MDEventInit(sourceRef); |
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destRef++; |
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sourceRef++; |
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} |
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} else { |
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destRef += count; |
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sourceRef += count; |
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while (count-- > 0) { |
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destRef--; |
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sourceRef--; |
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*destRef = *sourceRef; |
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MDEventInit(sourceRef); |
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} |
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} |
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} |
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|
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#ifdef __MWERKS__ |
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#pragma mark ====== Message-type event manipulation ====== |
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#endif |
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|
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/* -------------------------------------- |
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��� MDGetMessageLength |
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-------------------------------------- */ |
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int32_t |
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MDGetMessageLength(const MDEvent *eventRef) |
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{ |
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if (MDHasEventMessage(eventRef)) { |
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if (MDPrivateGetMessage(eventRef) == NULL) |
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return 0; |
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else return (MDPrivateGetMessage(eventRef)->length); |
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} else return -1; |
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} |
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|
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/* -------------------------------------- |
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��� MDGetMessage |
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-------------------------------------- */ |
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int32_t |
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MDGetMessage(const MDEvent *eventRef, unsigned char *outBuffer) |
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{ |
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if (MDHasEventMessage(eventRef)) { |
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MDMessage *message = MDPrivateGetMessage(eventRef); |
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if (message == NULL) |
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return 0; |
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memmove(outBuffer, message->msg, message->length); |
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return message->length; |
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} else return -1; |
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} |
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|
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/* -------------------------------------- |
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��� MDGetMessagePartial |
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-------------------------------------- */ |
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int32_t |
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MDGetMessagePartial(const MDEvent *eventRef, unsigned char *outBuffer, int32_t inOffset, int32_t inLength) |
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{ |
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if (MDHasEventMessage(eventRef)) { |
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MDMessage *message = MDPrivateGetMessage(eventRef); |
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if (message == NULL) |
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return 0; |
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if (inOffset + inLength > message->length) |
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inLength = message->length - inOffset; |
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memmove(outBuffer, message->msg + inOffset, inLength); |
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return inLength; |
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} else return -1; |
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} |
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|
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/* -------------------------------------- |
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��� MDGetMessageConstPtr |
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-------------------------------------- */ |
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const unsigned char * |
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MDGetMessageConstPtr(const MDEvent *eventRef, int32_t *outLength) |
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{ |
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if (MDHasEventMessage(eventRef)) { |
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MDMessage *message = MDPrivateGetMessage(eventRef); |
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if (outLength != NULL) |
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*outLength = message->length; |
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return message->msg; |
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} else return NULL; |
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} |
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|
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/* -------------------------------------- |
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��� MDGetMessagePtr |
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-------------------------------------- */ |
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unsigned char * |
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MDGetMessagePtr(MDEvent *eventRef, int32_t *outLength) |
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{ |
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if (MDHasEventMessage(eventRef)) { |
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MDMessage *message = MDPrivateGetMessage(eventRef); |
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if (outLength != NULL) |
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*outLength = message->length; |
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if (message->refCount > 1) { |
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/* This is a copy message, so we need to allocate new memory */ |
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message = MDMessageReallocate(message, message->length); |
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if (message == NULL) |
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return NULL; /* out of memory */ |
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MDPrivateSetMessage(eventRef, message); |
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} |
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return message->msg; |
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} else return NULL; |
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} |
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|
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/* -------------------------------------- |
| 319 |
��� MDSetMessageLength |
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-------------------------------------- */ |
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int32_t |
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MDSetMessageLength(MDEvent *eventRef, int32_t inLength) |
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{ |
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if (MDHasEventMessage(eventRef)) { |
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MDMessage *message; |
| 326 |
message = MDMessageReallocate(MDPrivateGetMessage(eventRef), inLength); |
| 327 |
if (message != NULL) { |
| 328 |
MDPrivateSetMessage(eventRef, message); |
| 329 |
return inLength; |
| 330 |
} else return -1; /* out of memory */ |
| 331 |
} |
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return 0; |
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} |
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|
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/* -------------------------------------- |
| 336 |
��� MDCopyMessage |
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-------------------------------------- */ |
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void |
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MDCopyMessage(MDEvent *destRef, MDEvent *srcRef) |
| 340 |
{ |
| 341 |
if (MDHasEventMessage(destRef) && MDHasEventMessage(srcRef)) { |
| 342 |
MDMessage *message = MDPrivateGetMessage(srcRef); |
| 343 |
MDMessageRetain(message); |
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MDMessageRelease(MDPrivateGetMessage(destRef)); |
| 345 |
MDPrivateSetMessage(destRef, message); |
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} |
| 347 |
} |
| 348 |
|
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/* -------------------------------------- |
| 350 |
��� MDSetMessage |
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-------------------------------------- */ |
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int32_t |
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MDSetMessage(MDEvent *eventRef, const unsigned char *inBuffer) |
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{ |
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if (MDHasEventMessage(eventRef)) { |
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MDMessage *message = MDPrivateGetMessage(eventRef); |
| 357 |
if (message != NULL) { |
| 358 |
if (message->refCount > 1) { |
| 359 |
/* This is a copy message, so we need to allocate new memory */ |
| 360 |
message = MDMessageReallocate(message, message->length); |
| 361 |
if (message == NULL) |
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return -1; /* out of memory */ |
| 363 |
MDPrivateSetMessage(eventRef, message); |
| 364 |
} |
| 365 |
memmove(message->msg, inBuffer, message->length); |
| 366 |
return message->length; |
| 367 |
} |
| 368 |
} |
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return 0; |
| 370 |
} |
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|
| 372 |
/* -------------------------------------- |
| 373 |
��� MDSetMessagePartial |
| 374 |
-------------------------------------- */ |
| 375 |
int32_t |
| 376 |
MDSetMessagePartial(MDEvent *eventRef, const unsigned char *inBuffer, int32_t inOffset, int32_t inLength) |
| 377 |
{ |
| 378 |
if (MDHasEventMessage(eventRef)) { |
| 379 |
MDMessage *message = MDPrivateGetMessage(eventRef); |
| 380 |
if (message == NULL) |
| 381 |
return 0; |
| 382 |
if (inOffset < 0) |
| 383 |
inOffset = 0; |
| 384 |
if (inOffset + inLength > message->length) |
| 385 |
inLength = message->length - inOffset; |
| 386 |
if (message->refCount > 1) { |
| 387 |
/* This is a copy message, so we need to allocate new memory */ |
| 388 |
message = MDMessageReallocate(message, message->length); |
| 389 |
if (message == NULL) |
| 390 |
return -1; /* out of memory */ |
| 391 |
MDPrivateSetMessage(eventRef, message); |
| 392 |
} |
| 393 |
memmove(message->msg + inOffset, inBuffer, inLength); |
| 394 |
return message->length; |
| 395 |
} |
| 396 |
return 0; |
| 397 |
} |
| 398 |
|
| 399 |
#ifdef __MWERKS__ |
| 400 |
#pragma mark ====== Display data ====== |
| 401 |
#endif |
| 402 |
|
| 403 |
/* -------------------------------------- |
| 404 |
��� MDEventNoteNumberToNoteName |
| 405 |
-------------------------------------- */ |
| 406 |
void |
| 407 |
MDEventNoteNumberToNoteName(unsigned char inNumber, char *outName) |
| 408 |
{ |
| 409 |
static char *note_name[] = |
| 410 |
{"C", "C#", "D", "D#", "E", "F", |
| 411 |
"F#", "G", "G#", "A", "A#", "B"}; |
| 412 |
snprintf(outName, 5, "%s%d", note_name[inNumber % 12], |
| 413 |
(inNumber / 12) - 1 - (sIsNote60C4 ? 0 : 1)); |
| 414 |
} |
| 415 |
|
| 416 |
int |
| 417 |
MDEventNoteNameToNoteNumber(const char *p) |
| 418 |
{ |
| 419 |
int n, code; |
| 420 |
if (isdigit(*p)) { |
| 421 |
/* Note number */ |
| 422 |
code = atoi(p); |
| 423 |
} else { |
| 424 |
static unsigned char table[] = { 9, 11, 0, 2, 4, 5, 7 }; |
| 425 |
if (*p >= 'A' && *p <= 'G') |
| 426 |
code = table[*p++ - 'A']; |
| 427 |
else if (*p >= 'a' && *p <= 'g') |
| 428 |
code = table[*p++ - 'a']; |
| 429 |
else return -1; |
| 430 |
if (*p == '#') { |
| 431 |
code++; |
| 432 |
p++; |
| 433 |
} else if (*p == 'b') { |
| 434 |
code--; |
| 435 |
p++; |
| 436 |
} |
| 437 |
n = atoi(p); |
| 438 |
code += (n + (sIsNote60C4 ? 0 : 1) + 1) * 12; |
| 439 |
} |
| 440 |
return code; |
| 441 |
} |
| 442 |
|
| 443 |
/* -------------------------------------- |
| 444 |
��� MDEventStaffToNote |
| 445 |
-------------------------------------- */ |
| 446 |
int |
| 447 |
MDEventStaffIndexToNoteNumber(int staff) |
| 448 |
{ |
| 449 |
static signed char sOffset[] = {0, 4, 7, 11, 14, 17, 21, 24}; |
| 450 |
if (staff >= 0) { |
| 451 |
return 60 + (staff / 7) * 24 + sOffset[staff % 7]; |
| 452 |
} else { |
| 453 |
staff = -staff; |
| 454 |
return 60 - ((staff / 7 + 1) * 24 - sOffset[7 - staff % 7]); |
| 455 |
} |
| 456 |
} |
| 457 |
|
| 458 |
typedef struct DictRecord { |
| 459 |
signed char kind; |
| 460 |
signed char code; |
| 461 |
const char *text; |
| 462 |
const char *abbtext; |
| 463 |
} DictRecord; |
| 464 |
|
| 465 |
#define ArraySize(array) (sizeof(array) / sizeof(array[0])) |
| 466 |
|
| 467 |
static const DictRecord sEventKindTable[] = { |
| 468 |
{ kMDEventTempo, -1, "@Tempo", "@t" }, |
| 469 |
{ kMDEventTimeSignature, -1, "@Meter", "@m" }, |
| 470 |
{ kMDEventKey, -1, "@Key", "@k" }, |
| 471 |
{ kMDEventSMPTE, -1, "@SMPTE", "@sm" }, |
| 472 |
{ kMDEventPortNumber, -1, "@Port", "@p" }, |
| 473 |
{ kMDEventProgram, -1, "+Program", "+p" }, |
| 474 |
{ kMDEventPitchBend, -1, "+Pitchbend", "+b" }, |
| 475 |
{ kMDEventChanPres, -1, "+ChanPres", "+c" }, |
| 476 |
/* { kMDEventKeyPres, -1, "+KeyPres", "+k" }, */ |
| 477 |
{ kMDEventSysex, -1, "#Sysex", "#" }, |
| 478 |
{ kMDEventSysexCont, -1, "#Sysex", "#" }, |
| 479 |
{ kMDEventMetaText, 2, "@Copyright", "@c" }, |
| 480 |
{ kMDEventMetaText, 3, "@Sequence", "@s" }, |
| 481 |
{ kMDEventMetaText, 4, "@Instrument", "@i" }, |
| 482 |
{ kMDEventMetaText, 5, "@Lyric", "@l" }, |
| 483 |
{ kMDEventMetaText, 6, "@Marker", "@mk" }, |
| 484 |
{ kMDEventMetaText, 7, "@Cue", "@cu" }, |
| 485 |
{ kMDEventMetaText, 8, "@Program", "@pr" }, |
| 486 |
{ kMDEventMetaText, 9, "@Device", "@dv" }, |
| 487 |
{ kMDEventMetaText, 1, "@Text", "@tx" }, |
| 488 |
{ kMDEventControl, 0, "*BankSelMSB", "*b" }, |
| 489 |
{ kMDEventControl, 1, "*Modulation", "*m" }, |
| 490 |
{ kMDEventControl, 5, "*PortaTime", "*pt" }, |
| 491 |
{ kMDEventControl, 6, "*DataEntryMSB", "*d" }, |
| 492 |
{ kMDEventControl, 7, "*Volume", "*v" }, |
| 493 |
{ kMDEventControl, 10, "*Pan", "*p" }, |
| 494 |
{ kMDEventControl, 11, "*Expression", "*e" }, |
| 495 |
{ kMDEventControl, 32, "*BankSelLSB", "*bl" }, |
| 496 |
{ kMDEventControl, 38, "*DataEntryLSB", "*dl" }, |
| 497 |
{ kMDEventControl, 64, "*Hold", "*h" }, |
| 498 |
{ kMDEventControl, 65, "*Portamento", "*pp" }, |
| 499 |
{ kMDEventControl, 66, "*Sostenuto", "*sp" }, |
| 500 |
{ kMDEventControl, 67, "*Soft", "*sf" }, |
| 501 |
{ kMDEventControl, 71, "*Resonance", "*r" }, |
| 502 |
{ kMDEventControl, 72, "*Release", "*rl" }, |
| 503 |
{ kMDEventControl, 73, "*Attack", "*at" }, |
| 504 |
{ kMDEventControl, 74, "*Cutoff", "*ct" }, |
| 505 |
{ kMDEventControl, 84, "*PortaCont", "*pc" }, |
| 506 |
{ kMDEventControl, 91, "*Reverb", "*rv" }, |
| 507 |
{ kMDEventControl, 93, "*Chorus", "*ch" }, |
| 508 |
{ kMDEventControl, 94, "*VariEffect", "*ve" }, |
| 509 |
{ kMDEventControl, 96, "*DataInc", "*+" }, |
| 510 |
{ kMDEventControl, 97, "*DataDec", "*-" }, |
| 511 |
{ kMDEventControl, 98, "*NRPNLSB", "*nl" }, |
| 512 |
{ kMDEventControl, 99, "*NRPNMSB", "*nm" }, |
| 513 |
{ kMDEventControl, 100, "*RPNLSB", "*rp" }, |
| 514 |
{ kMDEventControl, 101, "*RPNMSB", "*rm" }, |
| 515 |
{ kMDEventControl, 120, "*AllSoundsOff", "*ao" }, |
| 516 |
{ kMDEventControl, 121, "*ResetAllConts", "*rs" }, |
| 517 |
{ kMDEventControl, 123, "*AllNotesOff", "*an" }, |
| 518 |
{ kMDEventControl, 124, "*OmniOff", "*oo" }, |
| 519 |
{ kMDEventControl, 125, "*OmniOn", "*on" }, |
| 520 |
{ kMDEventControl, 126, "*Mono", "*mo" }, |
| 521 |
{ kMDEventControl, 127, "*Poly", "*po" } |
| 522 |
}; |
| 523 |
|
| 524 |
static const char *sMeta = "@Meta"; |
| 525 |
static const char *sText = "@Text"; |
| 526 |
static const char *sControl = "*Control"; |
| 527 |
|
| 528 |
static const char *sKeyTable[] = { |
| 529 |
"Cb", "Ab", "Gb", "Eb", "Db", "Bb", "Ab", "F", "Eb", "C", "Bb", "G", "F", "D", |
| 530 |
"C", "A", |
| 531 |
"G", "E", "D", "B", "A", "F#", "E", "C#", "B", "G#", "F#", "D#", "C#", "A#" |
| 532 |
}; |
| 533 |
static const char *sMajorMinor[] = { "major", "minor" }; |
| 534 |
|
| 535 |
static const char *sUnknown = "<Unknown>"; |
| 536 |
|
| 537 |
/* -------------------------------------- |
| 538 |
��� MDEventToKindString |
| 539 |
-------------------------------------- */ |
| 540 |
int32_t |
| 541 |
MDEventToKindString(const MDEvent *eref, char *buf, int32_t length) |
| 542 |
{ |
| 543 |
int kind = MDGetKind(eref); |
| 544 |
int code = MDGetCode(eref); |
| 545 |
int n; |
| 546 |
char temp[24]; |
| 547 |
for (n = ArraySize(sEventKindTable) - 1; n >= 0; n--) { |
| 548 |
if (sEventKindTable[n].kind == kind |
| 549 |
&& (sEventKindTable[n].code == -1 || sEventKindTable[n].code == code)) { |
| 550 |
if (kind == kMDEventControl) { |
| 551 |
snprintf(buf, length, "%s(%d)", sEventKindTable[n].text, code); |
| 552 |
} else { |
| 553 |
strncpy(buf, sEventKindTable[n].text, length - 1); |
| 554 |
buf[length - 1] = 0; |
| 555 |
} |
| 556 |
break; |
| 557 |
} |
| 558 |
} |
| 559 |
if (n < 0) { |
| 560 |
switch (kind) { |
| 561 |
case kMDEventMetaText: |
| 562 |
snprintf(buf, length, "%s(%d)", sText, code); |
| 563 |
break; |
| 564 |
case kMDEventMetaMessage: |
| 565 |
snprintf(buf, length, "%s(%d)", sMeta, (int)MDGetCode(eref)); |
| 566 |
break; |
| 567 |
case kMDEventNote: |
| 568 |
case kMDEventInternalNoteOn: |
| 569 |
case kMDEventInternalNoteOff: |
| 570 |
MDEventNoteNumberToNoteName(MDGetCode(eref), temp); |
| 571 |
snprintf(buf, length, "%-3s(%d)", temp, (int)MDGetCode(eref)); |
| 572 |
if (kind != kMDEventNote) { |
| 573 |
size_t len = strlen(buf); |
| 574 |
if (len < length) { |
| 575 |
buf[len++] = (kind == kMDEventInternalNoteOn ? '*' : '!'); |
| 576 |
buf[len] = 0; |
| 577 |
} |
| 578 |
} |
| 579 |
break; |
| 580 |
case kMDEventKeyPres: |
| 581 |
MDEventNoteNumberToNoteName(MDGetCode(eref), temp); |
| 582 |
snprintf(buf, length, ">%-3s(%d)", temp, (int)MDGetCode(eref)); |
| 583 |
break; |
| 584 |
case kMDEventControl: |
| 585 |
snprintf(buf, length, "%s(%d)", sControl, code); |
| 586 |
break; |
| 587 |
case kMDEventNull: |
| 588 |
buf[0] = 0; |
| 589 |
break; |
| 590 |
default: |
| 591 |
snprintf(buf, length, "%s(%d)", sUnknown, (int)kind); |
| 592 |
break; |
| 593 |
} |
| 594 |
} |
| 595 |
return (int)strlen(buf); |
| 596 |
} |
| 597 |
|
| 598 |
static char *sMetronomeBeatModifier[] = { "", ".", "t", "*" }; |
| 599 |
|
| 600 |
/* -------------------------------------- |
| 601 |
��� MDEventToDataString |
| 602 |
-------------------------------------- */ |
| 603 |
int32_t |
| 604 |
MDEventToDataString(const MDEvent *eref, char *buf, int32_t length) |
| 605 |
{ |
| 606 |
const unsigned char *ptr; |
| 607 |
const MDSMPTERecord *smp; |
| 608 |
int32_t n, n1; |
| 609 |
int d1, d2; |
| 610 |
|
| 611 |
switch (MDGetKind(eref)) { |
| 612 |
case kMDEventTempo: |
| 613 |
n = sprintf(buf, "%.2f", MDGetTempo(eref)); |
| 614 |
break; |
| 615 |
case kMDEventTimeSignature: |
| 616 |
ptr = MDGetMetaDataPtr(eref); |
| 617 |
d1 = (1 << (int)ptr[1]); |
| 618 |
d2 = 96 / d1; |
| 619 |
if (ptr[2] == d2) { |
| 620 |
n = sprintf(buf, "%d/%d", (int)ptr[0], d1); |
| 621 |
} else { |
| 622 |
int d3, dot; |
| 623 |
switch (ptr[2]) { |
| 624 |
case 96: case 48: case 24: case 12: case 6: case 3: |
| 625 |
d3 = 96 / ptr[2]; /* normal notes */ |
| 626 |
dot = 0; |
| 627 |
break; |
| 628 |
case 144: case 72: case 36: case 18: case 9: |
| 629 |
d3 = 144 / ptr[2]; /* dotted notes */ |
| 630 |
dot = 1; |
| 631 |
break; |
| 632 |
case 64: case 32: case 16: case 8: case 4: case 2: case 1: |
| 633 |
d3 = 64 / ptr[2]; /* triplets */ |
| 634 |
dot = 2; |
| 635 |
break; |
| 636 |
default: |
| 637 |
d3 = ptr[2]; |
| 638 |
dot = 3; |
| 639 |
break; |
| 640 |
} |
| 641 |
n = sprintf(buf, "%d/%d (%d%s)", (int)ptr[0], d1, d3, sMetronomeBeatModifier[dot]); |
| 642 |
} |
| 643 |
break; |
| 644 |
case kMDEventKey: |
| 645 |
ptr = MDGetMetaDataPtr(eref); |
| 646 |
d2 = (ptr[1] & 1); |
| 647 |
d1 = ((signed char)ptr[0] + 7) * 2 + d2; |
| 648 |
if (d1 >= 0 && d1 < ArraySize(sKeyTable)) |
| 649 |
n = sprintf(buf, "%s %s", sKeyTable[d1], sMajorMinor[d2]); |
| 650 |
else |
| 651 |
n = sprintf(buf, "%s", sUnknown); |
| 652 |
break; |
| 653 |
case kMDEventSMPTE: |
| 654 |
smp = MDGetSMPTERecordPtr(eref); |
| 655 |
n = sprintf(buf, "%02d:%02d:%02d:%02d.%02d", |
| 656 |
(int)smp->hour, (int)smp->min, (int)smp->sec, (int)smp->frame, (int)smp->subframe); |
| 657 |
break; |
| 658 |
case kMDEventPortNumber: |
| 659 |
case kMDEventProgram: |
| 660 |
case kMDEventPitchBend: |
| 661 |
case kMDEventChanPres: |
| 662 |
case kMDEventControl: |
| 663 |
case kMDEventKeyPres: |
| 664 |
n = sprintf(buf, "%6d", (int)MDGetData1(eref)); |
| 665 |
break; |
| 666 |
case kMDEventMetaText: |
| 667 |
ptr = MDGetMessageConstPtr(eref, &n); |
| 668 |
if (n >= length) |
| 669 |
n = length - 1; |
| 670 |
strncpy(buf, (const char *)ptr, n); |
| 671 |
buf[n] = 0; |
| 672 |
break; |
| 673 |
case kMDEventMetaMessage: |
| 674 |
case kMDEventSysex: |
| 675 |
case kMDEventSysexCont: |
| 676 |
ptr = MDGetMessageConstPtr(eref, &n1); |
| 677 |
if (MDGetKind(eref) == kMDEventSysex && n1 >= 8 && ptr[1] == 0x41) { |
| 678 |
/* Does have Roland check-sum? */ |
| 679 |
d1 = 0; |
| 680 |
for (n = 5; n < n1 - 1; n++) |
| 681 |
d1 += ptr[n]; |
| 682 |
d1 = ((d1 & 0x7f) == 0); |
| 683 |
} else d1 = 0; |
| 684 |
n = 0; |
| 685 |
while (n < length - 3 && n1 > 0) { |
| 686 |
if (d1 && n1 == 2) |
| 687 |
n += sprintf(buf + n, "cs "); |
| 688 |
else |
| 689 |
n += sprintf(buf + n, "%02X ", (int)(*ptr)); |
| 690 |
ptr++; |
| 691 |
n1--; |
| 692 |
} |
| 693 |
if (n >= 1) |
| 694 |
n--; |
| 695 |
buf[n] = 0; |
| 696 |
break; |
| 697 |
case kMDEventNote: |
| 698 |
d1 = MDGetNoteOnVelocity(eref); |
| 699 |
d2 = MDGetNoteOffVelocity(eref); |
| 700 |
/* d1 = ((MDGetData1(eref) >> 8) & 0xff); |
| 701 |
d2 = (MDGetData1(eref) & 0xff); */ |
| 702 |
if (d2 != 0) |
| 703 |
n = sprintf(buf, "%6d /%3d", d1, d2); |
| 704 |
else |
| 705 |
n = sprintf(buf, "%6d", d1); |
| 706 |
break; |
| 707 |
case kMDEventNull: |
| 708 |
buf[0] = 0; |
| 709 |
n = 0; |
| 710 |
break; |
| 711 |
default: |
| 712 |
n = sprintf(buf, "%s", sUnknown); |
| 713 |
break; |
| 714 |
} |
| 715 |
return n; |
| 716 |
} |
| 717 |
|
| 718 |
/* -------------------------------------- |
| 719 |
��� MDEventToGTString |
| 720 |
-------------------------------------- */ |
| 721 |
int32_t |
| 722 |
MDEventToGTString(const MDEvent *eref, char *buf, int32_t length) |
| 723 |
{ |
| 724 |
int32_t n; |
| 725 |
/* char temp1[24]; */ |
| 726 |
MDTickType duration; |
| 727 |
|
| 728 |
switch (MDGetKind(eref)) { |
| 729 |
case kMDEventNote: |
| 730 |
duration = MDGetDuration(eref); |
| 731 |
n = sprintf(buf, "%6d", (int32_t)(duration)); |
| 732 |
break; |
| 733 |
default: |
| 734 |
buf[0] = 0; |
| 735 |
n = 0; |
| 736 |
break; |
| 737 |
} |
| 738 |
return n; |
| 739 |
} |
| 740 |
|
| 741 |
/* -------------------------------------- |
| 742 |
��� MDEventMatchTable |
| 743 |
-------------------------------------- */ |
| 744 |
static int |
| 745 |
MDEventMatchTable(const char *buf, const DictRecord *dp, int max) |
| 746 |
{ |
| 747 |
/* Match the string with the table */ |
| 748 |
const char *p, *q; |
| 749 |
int n; |
| 750 |
|
| 751 |
/* Look up the full name table first */ |
| 752 |
for (n = 0; n < max; n++) { |
| 753 |
p = buf; |
| 754 |
q = dp[n].text; |
| 755 |
while (*p != 0 && *q != 0) { |
| 756 |
if (tolower(*p) != tolower(*q)) |
| 757 |
break; |
| 758 |
p++; |
| 759 |
q++; |
| 760 |
} |
| 761 |
if (*p == 0 || *q == 0) |
| 762 |
return n; /* Found */ |
| 763 |
} |
| 764 |
|
| 765 |
/* Then the abbreviation table */ |
| 766 |
for (n = 0; n < max; n++) { |
| 767 |
p = buf; |
| 768 |
q = dp[n].abbtext; |
| 769 |
while (*p != 0 && *q != 0) { |
| 770 |
if (tolower(*p) != tolower(*q)) |
| 771 |
break; |
| 772 |
p++; |
| 773 |
q++; |
| 774 |
} |
| 775 |
if (*p == 0 || *q == 0) |
| 776 |
return n; /* Found */ |
| 777 |
} |
| 778 |
|
| 779 |
return -1; /* not found */ |
| 780 |
} |
| 781 |
|
| 782 |
/* -------------------------------------- |
| 783 |
��� MDEventKindStringToEvent |
| 784 |
-------------------------------------- */ |
| 785 |
MDEventFieldCode |
| 786 |
MDEventKindStringToEvent(const char *buf, MDEventFieldData *epout) |
| 787 |
{ |
| 788 |
char temp[64], *p; |
| 789 |
int n, kind, code; |
| 790 |
|
| 791 |
/* Return value */ |
| 792 |
kind = -1; |
| 793 |
code = -1; |
| 794 |
|
| 795 |
/* Copy the string with conversion to lower characters */ |
| 796 |
for (n = 0, p = temp; n < 63 && buf[n] != 0; n++) { |
| 797 |
if (!isspace(buf[n])) |
| 798 |
*p++ = tolower(buf[n]); |
| 799 |
} |
| 800 |
*p = 0; |
| 801 |
|
| 802 |
if (temp[0] == 0) { |
| 803 |
kind = kMDEventNull; |
| 804 |
code = 0; |
| 805 |
} else if (temp[0] == '@') { |
| 806 |
/* Meta event */ |
| 807 |
n = MDEventMatchTable(temp, sEventKindTable, ArraySize(sEventKindTable)); |
| 808 |
if (n >= 0) { |
| 809 |
kind = sEventKindTable[n].kind; |
| 810 |
code = sEventKindTable[n].code; |
| 811 |
} else { |
| 812 |
if (sscanf(temp, "@text(%d)", &n) == 1) { |
| 813 |
code = n; |
| 814 |
} else if (sscanf(temp, "@meta(%d)", &n) == 1) { |
| 815 |
code = n; |
| 816 |
} else if (sscanf(temp, "@%d", &n) == 1) { |
| 817 |
code = n; |
| 818 |
} else return kMDEventFieldNone; |
| 819 |
if (code >= 1 && code <= 16) { |
| 820 |
kind = kMDEventMetaText; |
| 821 |
} else kind = kMDEventMetaMessage; |
| 822 |
} |
| 823 |
if (kind == kMDMetaEndOfTrack) |
| 824 |
return kMDEventFieldNone; /* invalid */ |
| 825 |
} else if (temp[0] == '#') { |
| 826 |
/* Sysex */ |
| 827 |
kind = kMDEventSysex; |
| 828 |
} else if (temp[0] == '*') { |
| 829 |
/* Control change */ |
| 830 |
kind = kMDEventControl; |
| 831 |
n = MDEventMatchTable(temp, sEventKindTable, ArraySize(sEventKindTable)); |
| 832 |
if (n >= 0) { |
| 833 |
code = sEventKindTable[n].code; |
| 834 |
} else { |
| 835 |
if (sscanf(temp, "*%d", &code) != 1) |
| 836 |
return kMDEventFieldNone; |
| 837 |
} |
| 838 |
epout->ucValue[0] = kind; |
| 839 |
epout->ucValue[1] = code; |
| 840 |
return kMDEventFieldKindAndCode; |
| 841 |
} else if (temp[0] == '+') { |
| 842 |
/* Other special controllers */ |
| 843 |
n = MDEventMatchTable(temp, sEventKindTable, ArraySize(sEventKindTable)); |
| 844 |
if (n >= 0) { |
| 845 |
kind = sEventKindTable[n].kind; |
| 846 |
} |
| 847 |
} else { |
| 848 |
/* Notes */ |
| 849 |
kind = kMDEventNote; |
| 850 |
p = temp; |
| 851 |
if (*p == '>') { |
| 852 |
/* Key pressure */ |
| 853 |
kind = kMDEventKeyPres; |
| 854 |
p++; |
| 855 |
} |
| 856 |
code = MDEventNoteNameToNoteNumber(p); |
| 857 |
if (code < 0) |
| 858 |
return kMDEventFieldNone; |
| 859 |
} |
| 860 |
if (kind >= 0) { |
| 861 |
epout->ucValue[0] = kind; |
| 862 |
epout->ucValue[1] = (code >= 0 ? code : 0); |
| 863 |
return kMDEventFieldKindAndCode; |
| 864 |
} |
| 865 |
return kMDEventFieldNone; |
| 866 |
} |
| 867 |
|
| 868 |
/* -------------------------------------- |
| 869 |
��� MDEventGTStringToEvent |
| 870 |
-------------------------------------- */ |
| 871 |
MDEventFieldCode |
| 872 |
MDEventGTStringToEvent(const MDEvent *epin, const char *buf, MDEventFieldData *epout) |
| 873 |
{ |
| 874 |
return kMDEventFieldNone; |
| 875 |
} |
| 876 |
|
| 877 |
/* -------------------------------------- |
| 878 |
��� MDEventDataStringToEvent |
| 879 |
-------------------------------------- */ |
| 880 |
MDEventFieldCode |
| 881 |
MDEventDataStringToEvent(const MDEvent *epin, const char *buf, MDEventFieldData *epout) |
| 882 |
{ |
| 883 |
unsigned char *ptr; |
| 884 |
int32_t n; |
| 885 |
int d0, d1, d2, d3, d4; |
| 886 |
double dbl; |
| 887 |
char temp[64]; |
| 888 |
|
| 889 |
epout->whole = 0; |
| 890 |
switch (MDGetKind(epin)) { |
| 891 |
case kMDEventTempo: |
| 892 |
dbl = atof(buf); |
| 893 |
if (dbl == 0.0) |
| 894 |
return kMDEventFieldNone; |
| 895 |
epout->floatValue = (float)dbl; |
| 896 |
return kMDEventFieldTempo; |
| 897 |
case kMDEventTimeSignature: |
| 898 |
if (sscanf(buf, "%d/%d%n", &d1, &d2, &d3) == 2) { |
| 899 |
if (32 % d2 != 0) |
| 900 |
break; /* Invalid note name */ |
| 901 |
switch (d2) { |
| 902 |
case 1: d4 = 0; break; |
| 903 |
case 2: d4 = 1; break; |
| 904 |
case 4: d4 = 2; break; |
| 905 |
case 8: d4 = 3; break; |
| 906 |
case 16: d4 = 4; break; |
| 907 |
case 32: d4 = 5; break; |
| 908 |
} |
| 909 |
d1 = (d1 & 0x7f); |
| 910 |
if (d1 != 0) { |
| 911 |
char cc; |
| 912 |
epout->ucValue[0] = d1; |
| 913 |
epout->ucValue[1] = d4; |
| 914 |
if (sscanf(buf + d3, " (%d%c", &d1, &cc) == 2) { |
| 915 |
if (d1 == 0) |
| 916 |
break; /* Invalid */ |
| 917 |
if (cc == ')') { |
| 918 |
/* Normal note */ |
| 919 |
if (32 % d1 != 0) |
| 920 |
break; /* Invalid note name */ |
| 921 |
d1 = 96 / d1; |
| 922 |
} else if (cc == sMetronomeBeatModifier[1][0]) { |
| 923 |
if (16 % d1 != 0) |
| 924 |
break; /* Invalid note name */ |
| 925 |
d1 = 144 / d1; |
| 926 |
} else if (cc == sMetronomeBeatModifier[2][0]) { |
| 927 |
if (64 % d1 != 0) |
| 928 |
break; /* Invalid note name */ |
| 929 |
d1 = 64 / d1; |
| 930 |
} else if (cc != sMetronomeBeatModifier[3][0]) |
| 931 |
break; /* Invalid format */ |
| 932 |
} else d1 = 96 / d2; |
| 933 |
if (d1 == 0) |
| 934 |
d1 = 1; |
| 935 |
epout->ucValue[2] = d1; |
| 936 |
epout->ucValue[3] = 8; |
| 937 |
return kMDEventFieldMetaData; |
| 938 |
} |
| 939 |
} |
| 940 |
break; |
| 941 |
case kMDEventKey: |
| 942 |
if (sscanf(buf, "%2s %3s", temp, temp + 4) == 2) { |
| 943 |
temp[0] = toupper(temp[0]); |
| 944 |
for (d2 = 0; d2 < 2; d2++) { |
| 945 |
if (strncmp(temp + 4, sMajorMinor[d2], 3) == 0) |
| 946 |
break; |
| 947 |
} |
| 948 |
if (d2 >= 2) |
| 949 |
d2 = 0; /* Assume it is major */ |
| 950 |
for (d1 = 0; d1 < ArraySize(sKeyTable) / 2; d1++) { |
| 951 |
if (strcmp(temp, sKeyTable[d1 * 2 + d2]) == 0) { |
| 952 |
/* found */ |
| 953 |
epout->ucValue[0] = d1 - 7; |
| 954 |
epout->ucValue[1] = d2; |
| 955 |
return kMDEventFieldMetaData; |
| 956 |
} |
| 957 |
} |
| 958 |
} |
| 959 |
break; |
| 960 |
case kMDEventSMPTE: |
| 961 |
if (sscanf(buf, "%d:%d:%d:%d.%d", &d0, &d1, &d2, &d3, &d4) == 5) { |
| 962 |
epout->smpte.hour = d0; |
| 963 |
epout->smpte.min = d1; |
| 964 |
epout->smpte.sec = d2; |
| 965 |
epout->smpte.frame = d3; |
| 966 |
epout->smpte.subframe = d4; |
| 967 |
return kMDEventFieldSMPTE; |
| 968 |
} |
| 969 |
break; |
| 970 |
case kMDEventPortNumber: |
| 971 |
case kMDEventProgram: |
| 972 |
case kMDEventPitchBend: |
| 973 |
case kMDEventChanPres: |
| 974 |
case kMDEventKeyPres: |
| 975 |
case kMDEventControl: |
| 976 |
if (sscanf(buf, "%d", &d1) == 1) { |
| 977 |
epout->intValue = d1; |
| 978 |
return kMDEventFieldData; |
| 979 |
} |
| 980 |
break; |
| 981 |
case kMDEventMetaText: |
| 982 |
n = (int)strlen(buf) + 1; |
| 983 |
ptr = (unsigned char *)malloc(n + sizeof(int32_t)); |
| 984 |
if (ptr != NULL) { |
| 985 |
*((int32_t *)ptr) = n; |
| 986 |
strcpy((char *)(ptr + sizeof(int32_t)), buf); |
| 987 |
epout->binaryData = ptr; |
| 988 |
return kMDEventFieldBinaryData; |
| 989 |
} |
| 990 |
break; |
| 991 |
case kMDEventMetaMessage: |
| 992 |
case kMDEventSysex: |
| 993 |
case kMDEventSysexCont: |
| 994 |
d0 = 16; |
| 995 |
epout->binaryData = (unsigned char *)malloc(d0); |
| 996 |
ptr = (unsigned char *)buf; /* Save the initial pointer */ |
| 997 |
d1 = sizeof(int32_t); |
| 998 |
while (*buf != 0) { |
| 999 |
while (*buf != 0 && isspace(*buf)) |
| 1000 |
buf++; |
| 1001 |
if (*buf == 0) |
| 1002 |
break; |
| 1003 |
if (*buf == 'c' && buf[1] == 's') { |
| 1004 |
/* Roland check-sum */ |
| 1005 |
d2 = 0; |
| 1006 |
for (d3 = 5 + sizeof(int32_t); d3 < d1; d3++) |
| 1007 |
d2 += epout->binaryData[d3]; |
| 1008 |
d2 = (0x80 - (d2 & 0x7f)) & 0x7f; |
| 1009 |
buf += 2; |
| 1010 |
} else if (sscanf(buf, "%2x%n", &d2, &d3) == 1) { |
| 1011 |
buf += d3; /* Next position */ |
| 1012 |
} else if (*buf == '#') { |
| 1013 |
buf++; |
| 1014 |
if (sscanf(buf, "%d%n", &d2, &d3) == 1) { |
| 1015 |
buf += d3; |
| 1016 |
} else goto bad_sysex; |
| 1017 |
} else goto bad_sysex; |
| 1018 |
epout->binaryData[d1] = d2; |
| 1019 |
d1++; |
| 1020 |
if (d1 == d0) { |
| 1021 |
d0 *= 2; |
| 1022 |
epout->binaryData = (unsigned char *)realloc(epout->binaryData, d0); |
| 1023 |
} |
| 1024 |
} |
| 1025 |
*((int32_t *)(epout->binaryData)) = d1 - sizeof(int32_t); |
| 1026 |
return kMDEventFieldBinaryData; |
| 1027 |
bad_sysex: |
| 1028 |
free(epout->binaryData); |
| 1029 |
epout->intValue = (int32_t)(buf - (char *)ptr); |
| 1030 |
return kMDEventFieldInvalid; |
| 1031 |
|
| 1032 |
case kMDEventNote: |
| 1033 |
d0 = sscanf(buf, "%d / %d", &d1, &d2); |
| 1034 |
if (d0 >= 1) { |
| 1035 |
if (d0 == 1) |
| 1036 |
d2 = 0; |
| 1037 |
epout->ucValue[0] = d1; |
| 1038 |
epout->ucValue[1] = d2; |
| 1039 |
return kMDEventFieldVelocities; |
| 1040 |
} |
| 1041 |
break; |
| 1042 |
} |
| 1043 |
return kMDEventFieldNone; |
| 1044 |
} |
| 1045 |
|
| 1046 |
/* -------------------------------------- |
| 1047 |
��� MDEventToMIDIMessage |
| 1048 |
-------------------------------------- */ |
| 1049 |
int |
| 1050 |
MDEventToMIDIMessage(const MDEvent *eventRef, unsigned char *buf) |
| 1051 |
{ |
| 1052 |
switch (MDGetKind(eventRef)) { |
| 1053 |
case kMDEventProgram: |
| 1054 |
buf[0] = kMDEventSMFProgram + MDGetChannel(eventRef); |
| 1055 |
buf[1] = MDGetData1(eventRef); |
| 1056 |
return 2; |
| 1057 |
case kMDEventNote: |
| 1058 |
buf[0] = kMDEventSMFNoteOn + MDGetChannel(eventRef); |
| 1059 |
buf[1] = MDGetCode(eventRef); |
| 1060 |
buf[2] = MDGetNoteOnVelocity(eventRef); |
| 1061 |
return 3; |
| 1062 |
case kMDEventInternalNoteOff: |
| 1063 |
buf[0] = kMDEventSMFNoteOff + MDGetChannel(eventRef); |
| 1064 |
buf[1] = MDGetCode(eventRef); |
| 1065 |
buf[2] = MDGetNoteOffVelocity(eventRef); |
| 1066 |
return 3; |
| 1067 |
case kMDEventControl: |
| 1068 |
buf[0] = kMDEventSMFControl + MDGetChannel(eventRef); |
| 1069 |
buf[1] = MDGetCode(eventRef); |
| 1070 |
buf[2] = MDGetData1(eventRef); |
| 1071 |
return 3; |
| 1072 |
/* |
| 1073 |
case kMDEventRPNControl: |
| 1074 |
buf[0] = 0xb0 + MDGetChannel(eventRef); |
| 1075 |
buf[1] = 6; |
| 1076 |
buf[2] = MDGetData2(eventRef); |
| 1077 |
return 3; |
| 1078 |
case kMDEventRPNFine: |
| 1079 |
buf[0] = 0xb0 + MDGetChannel(eventRef); |
| 1080 |
buf[1] = 38; |
| 1081 |
buf[2] = MDGetData2(eventRef); |
| 1082 |
return 3; |
| 1083 |
case kMDEventRPNInc: |
| 1084 |
return 0; |
| 1085 |
*/ |
| 1086 |
case kMDEventPitchBend: |
| 1087 |
buf[0] = kMDEventSMFPitchBend + MDGetChannel(eventRef); |
| 1088 |
buf[1] = MDGetData1(eventRef) & 0x7f; |
| 1089 |
buf[2] = ((MDGetData1(eventRef) + 8192) >> 7) & 0x7f; |
| 1090 |
return 3; |
| 1091 |
case kMDEventChanPres: |
| 1092 |
buf[0] = kMDEventSMFChannelPressure + MDGetChannel(eventRef); |
| 1093 |
buf[1] = MDGetData1(eventRef); |
| 1094 |
return 2; |
| 1095 |
case kMDEventKeyPres: |
| 1096 |
buf[0] = kMDEventSMFKeyPressure + MDGetChannel(eventRef); |
| 1097 |
buf[1] = MDGetCode(eventRef); |
| 1098 |
buf[2] = MDGetData1(eventRef); |
| 1099 |
return 3; |
| 1100 |
default: |
| 1101 |
return 0; |
| 1102 |
} |
| 1103 |
} |
| 1104 |
|
| 1105 |
/* -------------------------------------- |
| 1106 |
��� MDEventFromMIDIMessage |
| 1107 |
-------------------------------------- */ |
| 1108 |
MDStatus |
| 1109 |
MDEventFromMIDIMessage(MDEvent *eventRef, unsigned char firstByte, unsigned char lastStatusByte, int (*getCharFunc)(void *), void *funcArgument, unsigned char *outStatusByte) |
| 1110 |
{ |
| 1111 |
MDStatus result = kMDNoError; |
| 1112 |
int data1, data2; |
| 1113 |
unsigned char ch; /* MIDI channel */ |
| 1114 |
|
| 1115 |
/* Get the status byte */ |
| 1116 |
if (firstByte < 0x80) { |
| 1117 |
/* running status */ |
| 1118 |
data1 = firstByte; |
| 1119 |
firstByte = lastStatusByte; |
| 1120 |
} else { |
| 1121 |
data1 = (*getCharFunc)(funcArgument); |
| 1122 |
if (data1 < 0) |
| 1123 |
return kMDErrorUnexpectedEOF; |
| 1124 |
} |
| 1125 |
|
| 1126 |
/* Get the MD track number */ |
| 1127 |
ch = (firstByte & 0x0f); /* MIDI channel */ |
| 1128 |
MDSetChannel(eventRef, ch); |
| 1129 |
|
| 1130 |
switch (firstByte & 0xf0) { |
| 1131 |
case kMDEventSMFNoteOff: |
| 1132 |
case kMDEventSMFNoteOn: |
| 1133 |
data2 = (*getCharFunc)(funcArgument); |
| 1134 |
if (data2 < 0) { |
| 1135 |
result = kMDErrorUnexpectedEOF; |
| 1136 |
break; |
| 1137 |
} |
| 1138 |
data2 &= 0xff; |
| 1139 |
if ((firstByte & 0xf0) == kMDEventSMFNoteOn && data2 != 0) { |
| 1140 |
/* Note on */ |
| 1141 |
MDSetKind(eventRef, kMDEventInternalNoteOn); |
| 1142 |
MDSetCode(eventRef, data1); |
| 1143 |
MDSetNoteOnVelocity(eventRef, data2); |
| 1144 |
MDSetNoteOffVelocity(eventRef, 0); |
| 1145 |
MDSetDuration(eventRef, 0); |
| 1146 |
} else { |
| 1147 |
/* Note off */ |
| 1148 |
MDSetKind(eventRef, kMDEventInternalNoteOff); |
| 1149 |
MDSetCode(eventRef, data1); |
| 1150 |
MDSetNoteOnVelocity(eventRef, 0); |
| 1151 |
MDSetNoteOffVelocity(eventRef, data2); |
| 1152 |
} |
| 1153 |
break; |
| 1154 |
case kMDEventSMFKeyPressure: |
| 1155 |
data2 = (*getCharFunc)(funcArgument); |
| 1156 |
if (data2 < 0) { |
| 1157 |
result = kMDErrorUnexpectedEOF; |
| 1158 |
break; |
| 1159 |
} |
| 1160 |
MDSetKind(eventRef, kMDEventKeyPres); |
| 1161 |
MDSetCode(eventRef, data1); |
| 1162 |
MDSetData1(eventRef, data2); |
| 1163 |
break; |
| 1164 |
case kMDEventSMFControl: |
| 1165 |
data2 = (*getCharFunc)(funcArgument); |
| 1166 |
if (data2 < 0) { |
| 1167 |
result = kMDErrorUnexpectedEOF; |
| 1168 |
break; |
| 1169 |
} |
| 1170 |
MDSetKind(eventRef, kMDEventControl); |
| 1171 |
MDSetCode(eventRef, data1); |
| 1172 |
MDSetData1(eventRef, data2); |
| 1173 |
break; |
| 1174 |
case kMDEventSMFProgram: |
| 1175 |
MDSetKind(eventRef, kMDEventProgram); |
| 1176 |
MDSetData1(eventRef, data1); |
| 1177 |
break; |
| 1178 |
case kMDEventSMFChannelPressure: |
| 1179 |
MDSetKind(eventRef, kMDEventChanPres); |
| 1180 |
MDSetData1(eventRef, data1); |
| 1181 |
break; |
| 1182 |
case kMDEventSMFPitchBend: |
| 1183 |
data2 = (*getCharFunc)(funcArgument); |
| 1184 |
if (data2 < 0) { |
| 1185 |
result = kMDErrorUnexpectedEOF; |
| 1186 |
break; |
| 1187 |
} |
| 1188 |
MDSetKind(eventRef, kMDEventPitchBend); |
| 1189 |
MDSetData1(eventRef, ((data1 & 0x7f) + ((data2 & 0x7f) << 7)) - 8192); |
| 1190 |
break; |
| 1191 |
default: |
| 1192 |
result = kMDErrorUnknownChannelEvent; |
| 1193 |
break; |
| 1194 |
} /* end switch */ |
| 1195 |
|
| 1196 |
if (outStatusByte != NULL) |
| 1197 |
*outStatusByte = firstByte; |
| 1198 |
|
| 1199 |
return result; |
| 1200 |
|
| 1201 |
} |
| 1202 |
|
| 1203 |
/* -------------------------------------- |
| 1204 |
��� MDEventParseTimeSignature |
| 1205 |
-------------------------------------- */ |
| 1206 |
int |
| 1207 |
MDEventParseTimeSignature(const MDEvent *eptr, int32_t timebase, int32_t *outTickPerBeat, int32_t *outBeatPerMeasure) |
| 1208 |
{ |
| 1209 |
const unsigned char *p; |
| 1210 |
if (eptr != NULL && MDGetKind(eptr) == kMDEventTimeSignature) { |
| 1211 |
p = MDGetMetaDataPtr(eptr); |
| 1212 |
if (p[1] >= 31) |
| 1213 |
*outTickPerBeat = timebase; // ��������������������� |
| 1214 |
else |
| 1215 |
*outTickPerBeat = (int32_t)(timebase * 4 / (1L << p[1])); |
| 1216 |
*outBeatPerMeasure = p[0]; |
| 1217 |
return 1; |
| 1218 |
} else { |
| 1219 |
*outBeatPerMeasure = 4; |
| 1220 |
*outTickPerBeat = timebase; |
| 1221 |
return 0; |
| 1222 |
} |
| 1223 |
} |
| 1224 |
|
| 1225 |
/* ------------------------------------------ |
| 1226 |
��� MDEventCalculateMetronomeBarAndBeat |
| 1227 |
------------------------------------------ */ |
| 1228 |
int |
| 1229 |
MDEventCalculateMetronomeBarAndBeat(const MDEvent *eptr, int32_t timebase, int32_t *outTickPerMeasure, int32_t *outTickPerMetronomeBeat) |
| 1230 |
{ |
| 1231 |
if (eptr != NULL && MDGetKind(eptr) == kMDEventTimeSignature) { |
| 1232 |
const unsigned char *p = MDGetMetaDataPtr(eptr); |
| 1233 |
*outTickPerMetronomeBeat = timebase * p[2] / 24; |
| 1234 |
if (p[1] < 31) |
| 1235 |
*outTickPerMeasure = (timebase * 4 / (1 << p[1])) * p[0]; |
| 1236 |
else *outTickPerMeasure = timebase; |
| 1237 |
return 1; |
| 1238 |
} else { |
| 1239 |
*outTickPerMetronomeBeat = timebase; |
| 1240 |
*outTickPerMeasure = timebase * 4; |
| 1241 |
return 0; |
| 1242 |
} |
| 1243 |
} |
| 1244 |
|
| 1245 |
/* -------------------------------------- |
| 1246 |
��� MDEventToString |
| 1247 |
-------------------------------------- */ |
| 1248 |
char * |
| 1249 |
MDEventToString(const MDEvent *eptr, char *buf, int32_t bufsize) |
| 1250 |
{ |
| 1251 |
char *p; |
| 1252 |
int32_t n = 0; |
| 1253 |
p = buf; |
| 1254 |
n = snprintf(buf, bufsize, "%d", (int32_t)MDGetTick(eptr)); |
| 1255 |
if (n > bufsize - 5) |
| 1256 |
return buf; |
| 1257 |
buf[n++] = '\t'; |
| 1258 |
n += MDEventToKindString(eptr, buf + n, bufsize - n); |
| 1259 |
if (n > bufsize - 5) |
| 1260 |
return buf; |
| 1261 |
buf[n++] = '\t'; |
| 1262 |
n += MDEventToDataString(eptr, buf + n, bufsize - n); |
| 1263 |
if (n > bufsize - 5) |
| 1264 |
return buf; |
| 1265 |
buf[n++] = '\t'; |
| 1266 |
n += MDEventToGTString(eptr, buf + n, bufsize - n); |
| 1267 |
return buf; |
| 1268 |
} |
| 1269 |
|
| 1270 |
/* -------------------------------------- |
| 1271 |
��� MDEventParseTickString |
| 1272 |
-------------------------------------- */ |
| 1273 |
int |
| 1274 |
MDEventParseTickString(const char *s, int32_t *bar, int32_t *beat, int32_t *tick) |
| 1275 |
{ |
| 1276 |
int n; |
| 1277 |
int d1, d2, d3; |
| 1278 |
n = sscanf(s, "%d%*[^-0-9]%d%*[^-0-9]%d", &d1, &d2, &d3); |
| 1279 |
switch (n) { |
| 1280 |
case 1: d2 = 1; d3 = 0; break; |
| 1281 |
case 2: d3 = 0; break; |
| 1282 |
case 3: break; |
| 1283 |
default: return 0; |
| 1284 |
} |
| 1285 |
if (bar != NULL) |
| 1286 |
*bar = d1; |
| 1287 |
if (beat != NULL) |
| 1288 |
*beat = d2; |
| 1289 |
if (tick != NULL) |
| 1290 |
*tick = d3; |
| 1291 |
return 3; |
| 1292 |
} |
| 1293 |
|
| 1294 |
int |
| 1295 |
MDEventSMFMetaNumberToEventKind(int smfMetaNumber) |
| 1296 |
{ |
| 1297 |
int kind; |
| 1298 |
if (smfMetaNumber > 0 && smfMetaNumber < 16) { |
| 1299 |
kind = kMDEventMetaText; |
| 1300 |
} else { |
| 1301 |
switch (smfMetaNumber) { |
| 1302 |
case kMDMetaPortNumber: |
| 1303 |
kind = kMDEventPortNumber; break; |
| 1304 |
case kMDMetaTempo: |
| 1305 |
kind = kMDEventTempo; break; |
| 1306 |
case kMDMetaSMPTE: |
| 1307 |
kind = kMDEventSMPTE; break; |
| 1308 |
case kMDMetaTimeSignature: |
| 1309 |
kind = kMDEventTimeSignature; break; |
| 1310 |
case kMDMetaKey: |
| 1311 |
kind = kMDEventKey; break; |
| 1312 |
default: |
| 1313 |
kind = kMDEventMetaMessage; break; |
| 1314 |
} |
| 1315 |
} |
| 1316 |
return kind; |
| 1317 |
} |
| 1318 |
|
| 1319 |
int |
| 1320 |
MDEventMetaKindCodeToSMFMetaNumber(int kind, int code) |
| 1321 |
{ |
| 1322 |
switch (kind) { |
| 1323 |
case kMDEventPortNumber: return kMDMetaPortNumber; |
| 1324 |
case kMDEventTempo: return kMDMetaTempo; |
| 1325 |
case kMDEventSMPTE: return kMDMetaSMPTE; |
| 1326 |
case kMDEventTimeSignature: return kMDMetaTimeSignature; |
| 1327 |
case kMDEventKey: return kMDMetaKey; |
| 1328 |
case kMDEventMeta: return code; |
| 1329 |
case kMDEventMetaMessage: return code; |
| 1330 |
case kMDEventMetaText: return code; |
| 1331 |
default: return -1; |
| 1332 |
} |
| 1333 |
} |
| 1334 |
|
| 1335 |
int |
| 1336 |
MDEventIsEventAllowableInConductorTrack(const MDEvent *eptr) |
| 1337 |
{ |
| 1338 |
return MDIsMetaEvent(eptr); |
| 1339 |
} |
| 1340 |
|
| 1341 |
int |
| 1342 |
MDEventIsEventAllowableInNonConductorTrack(const MDEvent *eptr) |
| 1343 |
{ |
| 1344 |
return (eptr->kind != kMDEventTempo && eptr->kind != kMDEventTimeSignature); |
| 1345 |
} |
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