fix serialization of woz data

apple/diskii.cpp

@@ -49,8 +49,6 @@ DiskII::~DiskII()
 
 bool DiskII::Serialize(int8_t fd)
 {
-  return false;
-
   g_filemanager->writeByte(fd, DISKIIMAGIC);
 
   g_filemanager->writeByte(fd, readWriteLatch);
@@ -110,11 +108,18 @@ bool DiskII::Serialize(int8_t fd)
     
     if (disk[i]) {
       g_filemanager->writeByte(fd, 1);
+      // FIXME: this ONLY works for builds using the filemanager to read
+      // the disk image, so it's broken until we port Woz to do that!
+      const char *fn = disk[i]->diskName();
+      for (int j=0; j<strlen(fn); j++) {
+	g_filemanager->writeByte(fd, fn[j]);
+      }
+      g_filemanager->writeByte(fd, 0);
+      if (!disk[i]->Serialize(fd))
+	return false;
     } else {
       g_filemanager->writeByte(fd, 0);
     }
-    if (!disk[i]->Serialize(fd))
-      return false;
   }
   
   g_filemanager->writeByte(fd, DISKIIMAGIC);
@@ -167,6 +172,24 @@ bool DiskII::Deserialize(int8_t fd)
       delete disk[i];
     if (g_filemanager->readByte(fd) == 1) {
       disk[i] = new WozSerializer();
+      char buf[MAXPATH];
+      char c;
+      int ptr = 0;
+      while ( (c = g_filemanager->readByte(fd) != 0) ) {
+	buf[ptr++] = c;
+      }
+      buf[ptr] = 0;
+      if (buf[0]) {
+#ifdef TEENSYDUINO
+	disk[i]->readFile(buf, false, T_AUTO); // FIXME error checking    
+#else
+	disk[i]->readFile(buf, true, T_AUTO); // FIXME error checking     
+#endif
+      } else {
+	// ERROR: there's a disk but we don't have the path to its image?
+	return false;
+      }
+      
       if (!disk[i]->Deserialize(fd))
 	return false;
     } else {

apple/woz-serializer.cpp

@@ -1,18 +1,76 @@
 #include "woz-serializer.h"
+#include "globals.h"
+
+#define WOZMAGIC 0xD5
 
 WozSerializer::WozSerializer() : Woz(0,0)
 {
 }
 
+const char *WozSerializer::diskName()
+{
+  if (fd != -1) {
+    return g_filemanager->fileName(fd);
+  }
+  return "";
+}
+
 bool WozSerializer::Serialize(int8_t fd)
 {
-  // ***
-  return false;
+  // FIXME: if trackDirty is set, we MUST flush first before exiting!
+  
+  g_filemanager->writeByte(fd, WOZMAGIC);
+
+  // We need the internal state about data but not much else
+  g_filemanager->writeByte(fd,
+			   (trackPointer >> 24) & 0xFF);
+  g_filemanager->writeByte(fd,
+			   (trackPointer >> 16) & 0xFF);
+  g_filemanager->writeByte(fd,
+			   (trackPointer >>  8) & 0xFF);
+  g_filemanager->writeByte(fd,
+			   (trackPointer      ) & 0xFF);
+  
+  g_filemanager->writeByte(fd,
+			   (trackBitCounter >> 24) & 0xFF);
+  g_filemanager->writeByte(fd,
+			   (trackBitCounter >> 16) & 0xFF);
+  g_filemanager->writeByte(fd,
+			   (trackBitCounter >>  8) & 0xFF);
+  g_filemanager->writeByte(fd,
+			   (trackBitCounter      ) & 0xFF);
+
+  g_filemanager->writeByte(fd, trackByte);
+  g_filemanager->writeByte(fd, trackBitIdx);
+  g_filemanager->writeByte(fd, trackLoopCounter);
+  
+  g_filemanager->writeByte(fd, WOZMAGIC);
+  return true;
 }
 
 bool WozSerializer::Deserialize(int8_t fd)
 {
-  // ***
-  return false;
+  // Before deserializing, the caller has to re-load the right disk image!
+  if (g_filemanager->readByte(fd) != WOZMAGIC)
+    return false;
+  
+  trackPointer = g_filemanager->readByte(fd);
+  trackPointer <<= 8; trackPointer |= g_filemanager->readByte(fd);
+  trackPointer <<= 8; trackPointer |= g_filemanager->readByte(fd);
+  trackPointer <<= 8; trackPointer |= g_filemanager->readByte(fd);
+
+  trackBitCounter = g_filemanager->readByte(fd);
+  trackBitCounter <<= 8; trackBitCounter  |= g_filemanager->readByte(fd);
+  trackBitCounter <<= 8; trackBitCounter  |= g_filemanager->readByte(fd);
+  trackBitCounter <<= 8; trackBitCounter  |= g_filemanager->readByte(fd);
+  
+  trackByte = g_filemanager->readByte(fd);
+  trackBitIdx = g_filemanager->readByte(fd);
+  trackLoopCounter = g_filemanager->readByte(fd);
+  
+  if (g_filemanager->readByte(fd) != WOZMAGIC)
+    return false;
+  
+  return true;
 }
 

apple/woz-serializer.h

@@ -5,6 +5,7 @@
 class WozSerializer: public virtual Woz {
 public:
   WozSerializer();
+  const char *diskName();
 
  public:
   bool Serialize(int8_t fd);

apple/woz.h

@@ -100,7 +100,6 @@ class Woz {
   void _initInfo();
 
  private:
-  int fd;
   uint8_t imageType;
   
   bool verbose;
@@ -114,11 +113,15 @@ class Woz {
   trackInfo tracks[160];
 
   // cursor for track enumeration
+protected:
+  int fd;
+  
   uint32_t trackPointer;
   uint32_t trackBitCounter;
   uint8_t trackByte;
   uint8_t trackBitIdx;
   uint8_t trackLoopCounter;
+private:
   char *metaData;
   uint8_t randData, randPtr;
 };