From 6c32ee7a11ef95584e6208abac167d728e0f24ee Mon Sep 17 00:00:00 2001
From: Daveo <daveo@localhost>
Date: Wed, 4 Apr 2001 12:38:57 +0000
Subject: [PATCH]

---
 source/fileio/cdfile.cpp | 36 ++++++++++++++++++++++++++++++++++++
 source/fileio/cdfile.h   |  1 +
 source/fileio/fileio.cpp | 23 +++++++++++++++++++++++
 source/fileio/fileio.h   | 17 +++++++++++++++++
 4 files changed, 77 insertions(+)

diff --git a/source/fileio/cdfile.cpp b/source/fileio/cdfile.cpp
index d9018a03e..8c0507486 100644
--- a/source/fileio/cdfile.cpp
+++ b/source/fileio/cdfile.cpp
@@ -46,6 +46,42 @@ int		Error=0;
 		BigLump->Sector+=Count;
 }
 
+
+/*****************************************************************************/
+void	CCDFileIO::ReadAsync(sASyncQueue &File)
+{
+u8		Com=CdlModeSpeed;
+static	int Error=0;
+/*
+		switch(File.Status)
+		{
+		case BLStatusReady:
+			CdIntToPos(File.Sector+FileStart,&CdPos);
+	    	CdControlF(CdlSetloc, (u8*)&CdPos);	// Set CD Pos
+			File.Status=BLStatusOpen;
+			break;
+		case BLStatusOpen:
+			if (CdReadSync(1,0) > 0) return;
+	    	CdControlB(CdlSetmode, &Com,0);
+			CdRead(File.Length, (u32*)File.Dst, CdlModeSpeed);
+			File.Status=BLStatusRead;
+			break;
+		case BLStatusRead:
+			if (CdReadSync(1,0) > 0) return;
+			File.Status=BLStatusOffline;
+
+			break;
+		}
+*/
+
+			CdIntToPos(File.Sector+FileStart,&CdPos);
+	    	CdControlB(CdlSetloc, (u8*)&CdPos, 0);	// Set CD Pos
+	    	CdControlB(CdlSetmode, &Com, 0);
+			Error=CdRead(File.Length, (u32*)File.Dst, CdlModeSpeed);
+			if (Error!=0) File.Status=BLStatusOffline;
+
+}
+
 /*****************************************************************************/
 void 	CCDFileIO::Close()
 {
diff --git a/source/fileio/cdfile.h b/source/fileio/cdfile.h
index ab751fb95..b2fe8d658 100644
--- a/source/fileio/cdfile.h
+++ b/source/fileio/cdfile.h
@@ -16,6 +16,7 @@ public:
 
 	void 		Open();
 	void 		Read(u32 Length,void *Buffer);
+	void		ReadAsync(sASyncQueue &File);
 	void 		Close();
 
 private:
diff --git a/source/fileio/fileio.cpp b/source/fileio/fileio.cpp
index 914688e2c..d9861f45d 100644
--- a/source/fileio/fileio.cpp
+++ b/source/fileio/fileio.cpp
@@ -23,6 +23,8 @@ CLOFileIO	*CFileIO::FileIO;
 int			CFileIO::FilePosList[FILEPOS_MAX];
 
 sFAT		*CFileIO::MainFAT=0;
+sASyncQueue	CFileIO::ASyncQueue;
+bool		CFileIO::ASyncFlag;
 
 /*****************************************************************************/
 sDataBank	CFileIO::DataBank[DATABANK_MAX]=
@@ -77,6 +79,8 @@ int		FATSize=FileEquate_MAX*sizeof(sFAT);
 		for (int Bank=0;Bank<DATABANK_MAX; Bank++) DataBank[Bank].Data=0;
 //		loadDataBank(DATABANK_SYSTEM);
 //		CurrentDataBank=DATABANK_MAX;
+		ASyncQueue.Status=BLStatusOffline;
+		ASyncFlag=false;
 }
 
 /*****************************************************************************/
@@ -335,6 +339,25 @@ int	CFileIO::GetReadLeft()
 {
 	return(BigLump.LengthLeft);
 }
+
+/*****************************************************************************/
+void	CFileIO::AddASyncFile(FileEquate file,u8 *Dst)
+{
+		ASyncQueue.Sector = getFileSector(file);
+		ASyncQueue.Length = getFileSize(file )/2048;
+		ASyncQueue.Dst=Dst;
+		ASyncQueue.Status=BLStatusReady;
+}
+
+/*****************************************************************************/
+void	CFileIO::LoadASyncFiles()
+{
+		if (ASyncQueue.Status!=BLStatusOffline && ASyncFlag)
+		{
+			FileIO->ReadAsync(ASyncQueue);
+		}
+}
+
 /*****************************************************************************/
 /*** Data Banks **************************************************************/
 /*****************************************************************************/
diff --git a/source/fileio/fileio.h b/source/fileio/fileio.h
index 7321a1f70..b1d8d60ae 100644
--- a/source/fileio/fileio.h
+++ b/source/fileio/fileio.h
@@ -76,6 +76,15 @@ struct	sDataBank
 	sFAT		*Data;
 };
 
+/*****************************************************************************/
+struct	sASyncQueue
+{
+		int			Sector;
+		int			Length;
+		u8			*Dst;
+		int			Status;
+};
+
 /*****************************************************************************/
 class CLOFileIO;
 class CFileIO
@@ -110,6 +119,11 @@ static	void		FindAllFilePos();
 static	void		GetAllFilePos();
 static	int			GetReadLeft();
 
+// Fake ASync Que Stuff
+static	void		EnableASync(bool f)		{ASyncFlag=f;}
+static	void		AddASyncFile(FileEquate file,u8 *Dst);
+static	void		LoadASyncFiles();
+
 private:
 static	void   		CheckChunk();
 
@@ -121,6 +135,8 @@ static	sDataBank		DataBank[DATABANK_MAX];
 static	DataBankEquate	CurrentDataBank;
 
 static	sFAT		*MainFAT;
+static	sASyncQueue	ASyncQueue;
+static	bool		ASyncFlag;
 };
 
 /*****************************************************************************/
@@ -129,6 +145,7 @@ class CLOFileIO
 public:
 	virtual void 	Open()=0;
 	virtual void	Read(u32 Length,void *Buffer)=0;
+	virtual	void	ReadAsync(sASyncQueue &File){};
 	virtual void 	Close()=0;
 };