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-rw-r--r--qmpmidiread.cpp239
1 files changed, 0 insertions, 239 deletions
diff --git a/qmpmidiread.cpp b/qmpmidiread.cpp
deleted file mode 100644
index fd2e0d9..0000000
--- a/qmpmidiread.cpp
+++ /dev/null
@@ -1,239 +0,0 @@
-//CLI Midi file player based on libfluidsynth
-//Midi file reading module
-//Written by Chris Xiong, 2015
-#include <cstdio>
-#include <cstring>
-#include <cstdlib>
-#include <cstdint>
-#include <cstdarg>
-#include <algorithm>
-#include "qmpmidiplay.hpp"
-const char* GM1SysX={"\xF0\x7E\x7F\x09\x01\xF7"};
-const char* GM2SysX={"\xF0\x7E\x7F\x09\x03\xF7"};
-const char* GSSysEx={"\xF0\x41\x10\x42\x12\x40\x00\x7F\x00\x41\xF7"};
-const char* XGSysEx={"\xF0\x43\x10\x4C\x00\x00\x7E\x00\xF7"};
-bool cmp(SEvent *a,SEvent *b){return a->time-b->time?a->time<b->time:a->iid<b->iid;}
-void CMidiFile::error(int fatal,const char* format,...)
-{
- va_list ap;
- va_start(ap,format);vfprintf(stderr,format,ap);va_end(ap);
- fprintf(stderr," at %#lx\n",ftell(f));
- if(fatal)throw 2;
-}
-uint32_t CMidiFile::readSW()
-{
- byteread+=2;
- uint32_t ret=0;
- for(int i=0;i<2;++i){ret<<=8;ret|=((uint32_t)fgetc(f))&0xFF;}
- return ret;
-}
-uint32_t CMidiFile::readDW()
-{
- byteread+=4;
- uint32_t ret=0;
- for(int i=0;i<4;++i){ret<<=8;ret|=((uint32_t)fgetc(f))&0xFF;}
- return ret;
-}
-uint32_t CMidiFile::readVL()
-{
- uint32_t ret=0,t,c=0;
- do
- {
- t=fgetc(f);
- if(++c>4)error(1,"E: Variable length type overflow.");
- ret<<=7;ret|=(t&0x7F);
- }while(t&0x80);
- byteread+=c;
- return ret;
-}
-int CMidiFile::eventReader()//returns 0 if End of Track encountered
-{
- uint32_t delta=readVL();curt+=delta;
- char type=fgetc(f);++byteread;uint32_t p1,p2;
- static char lasttype;
-retry:
- switch(type&0xF0)
- {
- case 0x80://Note Off
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,p2);
- break;
- case 0x90://Note On
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- if(p2)
- {
- ++notes;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,p2);
- }
- else
- eventList[eventc++]=new SEvent(curid,curt,(type&0x0F)|0x80,p1,p2);
- break;
- case 0xA0://Note Aftertouch
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,p2);
- break;
- case 0xB0://Controller Change
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,p2);
- break;
- case 0xC0://Patch Change
- p1=fgetc(f);++byteread;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,0);
- break;
- case 0xD0://Channel Aftertouch
- p1=fgetc(f);++byteread;
- eventList[eventc++]=new SEvent(curid,curt,type,p1,0);
- break;
- case 0xE0://Pitch wheel
- p1=fgetc(f);p2=fgetc(f);byteread+=2;
- eventList[eventc++]=new SEvent(curid,curt,type,(p1|(p2<<7))&0x3FFF,0);
- break;
- case 0xF0:
- if((type&0x0F)==0x0F)//Meta Event
- {
- char metatype=fgetc(f);++byteread;
- switch(metatype)
- {
- case 0x00://Sequence Number
- fgetc(f);fgetc(f);fgetc(f);
- byteread+=3;
- break;
- case 0x20://Channel Prefix
- fgetc(f);fgetc(f);byteread+=2;
- break;
- case 0x2F://End of Track
- fgetc(f);++byteread;
- return 0;
- break;
- case 0x51://Set Tempo
- p1=readDW();p1&=0x00FFFFFF;
- eventList[eventc++]=new SEvent(curid,curt,type,metatype,p1);
- break;
- case 0x54://SMTPE offset, not handled.
- fgetc(f);fgetc(f);fgetc(f);
- fgetc(f);fgetc(f);fgetc(f);
- byteread+=6;
- break;
- case 0x58://Time signature
- fgetc(f);++byteread;
- p1=readDW();
- eventList[eventc++]=new SEvent(curid,curt,type,metatype,p1);
- break;
- case 0x59://Key signature
- fgetc(f);++byteread;
- p1=readSW();
- eventList[eventc++]=new SEvent(curid,curt,type,metatype,p1);
- break;
- case 0x01:case 0x02:case 0x03:
- case 0x04:case 0x05:case 0x06:
- case 0x07:case 0x7F:default://text-like meta
- {
- uint32_t len=readVL(),c;char* str=NULL;
- if(len<=1024&&len>0)str=new char[len+8];
- for(c=0;c<len;++c)
- {
- ++byteread;if(str)str[c]=fgetc(f);else fgetc(f);
- }
- if(str)str[c]='\0';eventList[eventc++]=new SEvent(curid,curt,type,metatype,0,str);
- if(str&&metatype==0x03&&!title)
- {
- title=new char[len+8];
- strcpy(title,str);
- }
- if(str&&metatype==0x02&&!copyright)
- {
- copyright=new char[len+8];
- strcpy(copyright,str);
- }
- if(len<=1024&&len>0)delete[] str;
- }
- }
- }
- else if((type&0x0F)==0x00||(type&0x0F)==0x07)//SysEx
- {
- uint32_t len=readVL(),c;char* str=NULL;
- str=new char[len+8];
- if((type&0x0F)==0x00)
- {
- str[0]=0xF0;++len;
- for(c=1;c<len;++c){++byteread;str[c]=fgetc(f);}
- }
- else for(c=0;c<len;++c){++byteread;str[c]=fgetc(f);}
- eventList[eventc++]=new SEvent(curid,curt,type,len,0,str);
- if(!strcmp(str,GM1SysX))std=1;
- if(!strcmp(str,GM2SysX))std=2;
- if(!strcmp(str,GSSysEx))std=3;
- if(!strcmp(str,XGSysEx))std=4;
- }
- else error(0,"W: Unknown event type %#x",type);
- break;
- default:
- fseek(f,-1,SEEK_CUR);--byteread;type=lasttype;goto retry;
- }
- lasttype=type;++curid;
- return 1;
-}
-void CMidiFile::trackChunkReader()
-{
- int chnklen=readDW();byteread=0;curt=0;curid=0;
- while(/*byteread<chnklen&&*/eventReader());
- if(byteread<chnklen)
- {
- error(0,"W: Extra bytes after EOT event.");
- while(byteread<chnklen){fgetc(f);++byteread;}
- }
- /*if(byteread>chnklen)
- {
- error(1,"E: Read past end of track.");
- }*/
-}
-void CMidiFile::headerChunkReader()
-{
- int chnklen=readDW();byteread=0;
- if(chnklen<6)error(1,"E: Header chunk too short.");
- if(chnklen>6)error(0,"W: Header chunk length longer than expected. Ignoring extra bytes.");
- fmt=readSW();trk=readSW();divs=readSW();
- if(divs&0x8000)error(1,"E: SMTPE format is not supported.");
- for(;byteread<chnklen;++byteread){fgetc(f);}
-}
-int CMidiFile::chunkReader(int hdrXp)
-{
- char hdr[6];
- if(!fgets(hdr,5,f))error(1,"E: Unexpected EOF.");
- if(hdrXp)
- if(strncmp(hdr,"MThd",4)){error(1,"E: Wrong MIDI header.");throw;}
- else return headerChunkReader(),0;
- else
- if(strncmp(hdr,"MTrk",4))
- {
- error(0,"W: Wrong track chunk header. Ignoring the whole chunk.");
- for(int chnklen=readDW();chnklen>0;--chnklen)fgetc(f);return 0;
- }
- else return trackChunkReader(),1;
-}
-CMidiFile::CMidiFile(const char* fn)
-{
- title=copyright=NULL;notes=eventc=0;std=0;valid=1;
- try
- {
- if(!(f=fopen(fn,"rb")))throw (fprintf(stderr,"E: file %s doesn't exist!\n",fn),2);
- chunkReader(1);
- for(uint32_t i=0;i<trk;i+=chunkReader(0));
- fclose(f);
- std::sort(eventList,eventList+eventc,cmp);
- }
- catch(int){fprintf(stderr,"E: %s is not a supported file.\n",fn);valid=0;}
-}
-CMidiFile::~CMidiFile()
-{
- for(uint32_t i=0;i<eventc;++i)delete eventList[i];
- if(title)delete[] title;if(copyright)delete[] copyright;
-}
-const SEvent* CMidiFile::getEvent(uint32_t id){return id<eventc?eventList[id]:NULL;}
-uint32_t CMidiFile::getEventCount(){return eventc;}
-uint32_t CMidiFile::getDivision(){return divs;}
-uint32_t CMidiFile::getNoteCount(){return notes;}
-uint32_t CMidiFile::getStandard(){return std;}
-bool CMidiFile::isValid(){return valid;}
-const char* CMidiFile::getTitle(){return title;}
-const char* CMidiFile::getCopyright(){return copyright;}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 09:02:38 +0000