public byte[] GetSZXData()
{
byte[] szxData = null;
using (MemoryStream ms = new MemoryStream(1000)) {
using (BinaryWriter r = new BinaryWriter(ms)) {
byte[] buf;
ZXST_Block block = new ZXST_Block();
buf = ByteUtililty.RawSerialize(header); //header is filled in by the callee machine
r.Write(buf);
block.Id = GetUIntFromString("CRTR");
block.Size = (uint)Marshal.SizeOf(creator);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(creator);
r.Write(buf);
block.Id = GetUIntFromString("Z80R");
block.Size = (uint)Marshal.SizeOf(z80Regs);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(z80Regs);
r.Write(buf);
block.Id = GetUIntFromString("SPCR");
block.Size = (uint)Marshal.SizeOf(specRegs);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(specRegs);
r.Write(buf);
block.Id = GetUIntFromString("KEYB");
block.Size = (uint)Marshal.SizeOf(keyboard);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(keyboard);
r.Write(buf);
if (paletteLoaded)
{
block.Id = GetUIntFromString("PLTT");
block.Size = (uint)Marshal.SizeOf(palette);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(palette);
r.Write(buf);
}
if (header.MachineId > (byte)ZXTYPE.ZXSTMID_48K)
{
block.Id = GetUIntFromString("AY\0\0");
block.Size = (uint)Marshal.SizeOf(ayState);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(ayState);
r.Write(buf);
byte[] ram = new byte[16384];
for (int f = 0; f < 8; f++)
{
ZXST_RAMPage ramPage = new ZXST_RAMPage();
ramPage.chPageNo = (byte)f;
ramPage.wFlags = 0; //not compressed
block.Id = GetUIntFromString("RAMP");
block.Size = (uint)(Marshal.SizeOf(ramPage) + 16384);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(ramPage);
r.Write(buf);
for (int g = 0; g < 8192; g++)
{
ram[g] = (byte)(RAM_BANK[f * 2][g] & 0xff);
ram[g + 8192] = (byte)(RAM_BANK[f * 2 + 1][g] & 0xff);
}
r.Write(ram);
}
}
else //48k
{
byte[] ram = new byte[16384];
//page 0
ZXST_RAMPage ramPage = new ZXST_RAMPage();
ramPage.chPageNo = 0;
ramPage.wFlags = 0; //not compressed
block.Id = GetUIntFromString("RAMP");
block.Size = (uint)(Marshal.SizeOf(ramPage) + 16384);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(ramPage);
r.Write(buf);
for (int g = 0; g < 8192; g++)
{
//me am angry.. poda thendi... saree vangi tharamattaaai?? poda! nonsense! style moonji..madiyan changu..malayalam ariyatha
//Lol! That's my wife cursing me for spending my time on this crap instead of her. Such a sweetie pie!
ram[g] = (byte)(RAM_BANK[0][g] & 0xff);
ram[g + 8192] = (byte)(RAM_BANK[1][g] & 0xff);
}
r.Write(ram);
//page 2
ramPage.chPageNo = 2;
ramPage.wFlags = 0; //not compressed
//ramPage.chData = new byte[16384];
// Array.Copy(RAM_BANK[2 * 2], 0, ramPage.chData, 0, 8192);
//Array.Copy(RAM_BANK[2 * 2 + 1], 0, ramPage.chData, 8192, 8192);
block.Id = GetUIntFromString("RAMP");
block.Size = (uint)(Marshal.SizeOf(ramPage) + 16384);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(ramPage);
r.Write(buf);
for (int g = 0; g < 8192; g++)
{
ram[g] = (byte)(RAM_BANK[ramPage.chPageNo * 2][g] & 0xff);
ram[g + 8192] = (byte)(RAM_BANK[ramPage.chPageNo * 2 + 1][g] & 0xff);
}
r.Write(ram);
//page 5
ramPage.chPageNo = 5;
ramPage.wFlags = 0; //not compressed
block.Id = GetUIntFromString("RAMP");
block.Size = (uint)(Marshal.SizeOf(ramPage) + 16384);
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(ramPage);
r.Write(buf);
for (int g = 0; g < 8192; g++)
{
ram[g] = (byte)(RAM_BANK[ramPage.chPageNo * 2][g] & 0xff);
ram[g + 8192] = (byte)(RAM_BANK[ramPage.chPageNo * 2 + 1][g] & 0xff);
}
r.Write(ram);
}
if (InsertTape)
{
tape = new ZXST_Tape();
block.Id = GetUIntFromString("TAPE");
char[] ext = System.IO.Path.GetExtension(externalTapeFile).ToLower().ToCharArray();
tape.fileExtension = new char[16];
for (int f = 1; f < ext.Length; f++)
{
tape.fileExtension[f - 1] = ext[f];
}
externalTapeFile = externalTapeFile + char.MinValue; //add a null terminator
tape.flags = 0;
tape.currentBlockNo = 0;
tape.compressedSize = externalTapeFile.Length;
tape.uncompressedSize = externalTapeFile.Length;
block.Size = (uint)Marshal.SizeOf(tape) + (uint)tape.uncompressedSize;
buf = ByteUtililty.RawSerialize(block);
r.Write(buf);
buf = ByteUtililty.RawSerialize(tape);
r.Write(buf);
char[] tapeName = externalTapeFile.ToCharArray();
r.Write(tapeName);
}
}
szxData = ms.ToArray();
}
return(szxData);
}
public bool LoadSZX(Stream fs)
{
for (int f = 0; f < 16; f++)
{
RAM_BANK[f] = new byte[8192];
}
using (BinaryReader r = new BinaryReader(fs)) {
int bytesToRead = (int)fs.Length;
byte[] buffer = new byte[bytesToRead];
int bytesRead = r.Read(buffer, 0, bytesToRead);
if (bytesRead == 0)
{
return(false); //something bad happened!
}
GCHandle pinnedBuffer = GCHandle.Alloc(buffer, GCHandleType.Pinned);
//Read in the szx header to begin proceedings
header = (ZXST_Header)Marshal.PtrToStructure(pinnedBuffer.AddrOfPinnedObject(),
typeof(ZXST_Header));
if (header.MajorVersion != 1)
{
pinnedBuffer.Free();
return(false);
}
string formatName = GetID(header.Magic);
int bufferCounter = Marshal.SizeOf(header);
while (bufferCounter < bytesRead)
{
//Read the block info
ZXST_Block block = (ZXST_Block)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_Block));
bufferCounter += Marshal.SizeOf(block);
string blockID = GetID(block.Id);
switch (blockID)
{
case "SPCR":
//Read the ZXST_SpecRegs structure
specRegs = (ZXST_SpecRegs)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_SpecRegs));
break;
case "Z80R":
//Read the ZXST_SpecRegs structure
z80Regs = (ZXST_Z80Regs)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_Z80Regs));
break;
case "KEYB":
//Read the ZXST_SpecRegs structure
keyboard = (ZXST_Keyboard)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_Keyboard));
break;
case "AY\0\0":
ayState = (ZXST_AYState)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_AYState));
break;
case "+3\0\0":
plus3Disk = (ZXST_Plus3Disk)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_Plus3Disk));
numDrivesPresent = plus3Disk.numDrives;
plus3DiskFile = new ZXST_DiskFile[plus3Disk.numDrives];
externalDisk = new String[plus3Disk.numDrives];
InsertDisk = new bool[plus3Disk.numDrives];
break;
case "DSK\0":
ZXST_DiskFile df = (ZXST_DiskFile)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_DiskFile));
plus3DiskFile[df.driveNum] = df;
InsertDisk[df.driveNum] = true;
int offset2 = bufferCounter + Marshal.SizeOf(df);
char[] file = new char[df.uncompressedSize];
Array.Copy(buffer, offset2, file, 0, df.uncompressedSize); //leave out the \0 terminator
externalDisk[df.driveNum] = new String(file);
break;
case "TAPE":
tape = (ZXST_Tape)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_Tape));
InsertTape = true;
//Embedded tape file
if ((tape.flags & 1) != 0)
{
int offset = bufferCounter + Marshal.SizeOf(tape);
//Compressed?
if ((tape.flags & 2) != 0)
{
MemoryStream compressedData = new MemoryStream(buffer, offset, tape.compressedSize);
MemoryStream uncompressedData = new MemoryStream();
using (ZInputStream zipStream = new ZInputStream(compressedData)) {
byte[] tempBuffer = new byte[2048];
int bytesUnzipped = 0;
while ((bytesUnzipped = zipStream.read(tempBuffer, 0, 2048)) > 0)
{
uncompressedData.Write(tempBuffer, 0, bytesUnzipped);
}
embeddedTapeData = uncompressedData.ToArray();
compressedData.Close();
uncompressedData.Close();
}
}
else
{
embeddedTapeData = new byte[tape.compressedSize];
Array.Copy(buffer, offset, embeddedTapeData, 0, tape.compressedSize);
}
}
else //external tape file
{
int offset = bufferCounter + Marshal.SizeOf(tape);
char[] file2 = new char[tape.compressedSize - 1];
Array.Copy(buffer, offset, file2, 0, tape.compressedSize - 1); //leave out the \0 terminator
externalTapeFile = new String(file2);
}
break;
case "RAMP":
//Read the ZXST_SpecRegs structure
ZXST_RAMPage ramPages = (ZXST_RAMPage)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_RAMPage));
if (ramPages.wFlags == ZXSTRF_COMPRESSED)
{
int offset = bufferCounter + Marshal.SizeOf(ramPages);
int compressedSize = ((int)block.Size - (Marshal.SizeOf(ramPages)));// - Marshal.SizeOf(block) - 1 ));
MemoryStream compressedData = new MemoryStream(buffer, offset, compressedSize);
MemoryStream uncompressedData = new MemoryStream();
using (ZInputStream zipStream = new ZInputStream(compressedData)) {
byte[] tempBuffer = new byte[2048];
int bytesUnzipped = 0;
while ((bytesUnzipped = zipStream.read(tempBuffer, 0, 2048)) > 0)
{
uncompressedData.Write(tempBuffer, 0, bytesUnzipped);
}
byte[] pageData = uncompressedData.ToArray();
{
Array.Copy(pageData, 0, RAM_BANK[ramPages.chPageNo * 2], 0, 8192);
Array.Copy(pageData, 0 + 8192, RAM_BANK[ramPages.chPageNo * 2 + 1], 0, 8192);
}
compressedData.Close();
uncompressedData.Close();
}
}
else
{
int bufferOffset = bufferCounter + Marshal.SizeOf(ramPages);
{
Array.Copy(buffer, bufferOffset, RAM_BANK[ramPages.chPageNo * 2], 0, 8192);
Array.Copy(buffer, bufferOffset + 8192, RAM_BANK[ramPages.chPageNo * 2 + 1], 0, 8192);
}
}
break;
case "PLTT":
palette = (ZXST_PaletteBlock)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, bufferCounter),
typeof(ZXST_PaletteBlock));
paletteLoaded = true;
break;
default: //unrecognised block, so skip to next
break;
}
bufferCounter += (int)block.Size; //Move to next block
}
pinnedBuffer.Free();
return(true);
}
}