From cf7eafca1fbc9aae495d7b7d7e1fb4bc92e6819f Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Wed, 6 Apr 2016 09:46:52 +0800
Subject: Sometimes Naïve!
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---
 qmpmidiread.cpp | 239 --------------------------------------------------------
 1 file changed, 239 deletions(-)
 delete mode 100644 qmpmidiread.cpp

(limited to 'qmpmidiread.cpp')

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;}
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