/// <summary>
/// Picks a ROM through a <see cref="SaveFileDialog"/> if not specified (or forced) and patch multi_midway.asm.
/// </summary>
private void PatchRom(bool saveAs = false)
{
try
{
// Similar as in ExportAsmTable(): Compress the tables first.
CompressTable();
// Now we save the midway points with a fixed name.
Midway.ExportAsm(midways, new FileStream(directory + MmpAsm, FileMode.Create));
UnsavedChanges = false;
}
catch
{
MessageBox.Show("Cannot create multi_midway_table.asm. Please check the file's permission or whether it's already in use.", "Cannot create " + MmpAsm, MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (Asar.init())
{
Asar.reset();
if (string.IsNullOrEmpty(romName) || saveAs)
{
if (patchRomDialog.ShowDialog() != DialogResult.OK)
{
return;
}
romName = patchRomDialog.FileName;
}
try
{
// Remember that Asar expects headerless ROMs.
// The code seperates the raw data from the header.
byte[] fullRom = File.ReadAllBytes(patchRomDialog.FileName);
int lHeader = fullRom.Length & 0x7fff;
byte[] header = new byte[lHeader];
byte[] rom = new byte[fullRom.Length - lHeader];
Array.Copy(fullRom, 0, header, 0, lHeader);
Array.Copy(fullRom, lHeader, rom, 0, fullRom.Length - lHeader);
// Patching starts...
if (Asar.patch(directory + "multi_midway.asm", ref rom))
{
try
{
// Now it's time to merge them back.
fullRom = new byte[rom.Length + lHeader];
Array.Copy(header, 0, fullRom, 0, lHeader);
Array.Copy(rom, 0, fullRom, lHeader, rom.Length);
File.WriteAllBytes(patchRomDialog.FileName, fullRom);
}
catch (IOException ex)
{
MessageBox.Show("An error appeared when patching Multiple Midway Points: " + ex.Message, "ROM couldn't be written", MessageBoxButtons.OK, MessageBoxIcon.Error);
Asar.close();
return;
}
StringBuilder warningBuilder = new StringBuilder();
foreach (var warning in Asar.getwarnings())
{
warningBuilder.AppendLine(warning.Fullerrdata);
}
string warnings = warningBuilder.ToString();
string fullWarning = !string.IsNullOrEmpty(warnings) ? "The following warnings appeared:\n" + warnings : "";
using (LongMessage message = new LongMessage("Multiple Midway Points has been inserted successfully. It uses " + Asar.getprints()[0] + " bytes of freespace.\n" + fullWarning, "Patching successful"))
{
message.ShowDialog(this);
}
}
else
{
MessageBox.Show("An error appeared when patching Multiple Midway Points. See mmp.log for more information.", "ROM couldn't be patched", MessageBoxButtons.OK, MessageBoxIcon.Error);
using (FileStream stream = new FileStream("mmp.log", FileMode.Create))
{
using (StreamWriter writer = new StreamWriter(stream))
{
foreach (var warning in Asar.getwarnings())
{
writer.WriteLine(warning.Fullerrdata);
}
foreach (var error in Asar.geterrors())
{
writer.WriteLine(error.Fullerrdata);
}
}
}
}
}
catch (IOException ex)
{
MessageBox.Show("An error appeared when patching Multiple Midway Points: " + ex.Message, "ROM couldn't be opened", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
finally
{
Asar.close();
}
}
else
{
MessageBox.Show("Asar couldn't be started. (Perhaps asar.dll is missing or a wrong version is used?)", "Couldn't open Asar", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}