bool VSTPresets::SaveFile(std::ostream &f, CVstPlugin &plugin, bool bank)
//-----------------------------------------------------------------------
{
if(!bank)
{
SaveProgram(f, plugin);
} else
{
bool writeChunk = plugin.ProgramsAreChunks();
ChunkHeader header;
header.chunkMagic = cMagic;
header.version = 2;
header.fxID = plugin.GetUID();
header.fxVersion = plugin.GetVersion();
// Write unfinished header... We need to update the size once we're done writing.
Write(header, f);
uint32 numProgs = std::max(plugin.GetNumPrograms(), VstInt32(1)), curProg = plugin.GetCurrentProgram();
WriteBE(numProgs, f);
WriteBE(curProg, f);
char reserved[124];
MemsetZero(reserved);
Write(reserved, f);
if(writeChunk)
{
char *chunk = nullptr;
uint32 chunkSize = mpt::saturate_cast<uint32>(plugin.Dispatch(effGetChunk, 0, 0, &chunk, 0));
if(chunkSize && chunk)
{
WriteBE(chunkSize, f);
f.write(chunk, chunkSize);
} else
{
// The plugin returned no chunk! Gracefully go back and save parameters instead...
writeChunk = false;
}
}
if(!writeChunk)
{
for(uint32 p = 0; p < numProgs; p++)
{
plugin.SetCurrentProgram(p);
SaveProgram(f, plugin);
}
plugin.SetCurrentProgram(curProg);
}
// Now we know the correct chunk size.
std::streamoff end = f.tellp();
header.byteSize = static_cast<VstInt32>(end - 8);
header.fxMagic = writeChunk ? chunkBankMagic : bankMagic;
header.ConvertEndianness();
f.seekp(0);
Write(header, f);
}
return true;
}
void VSTPresets::SaveProgram(std::ostream &f, CVstPlugin &plugin)
//---------------------------------------------------------------
{
bool writeChunk = plugin.ProgramsAreChunks();
ChunkHeader header;
header.chunkMagic = cMagic;
header.version = 1;
header.fxID = plugin.GetUID();
header.fxVersion = plugin.GetVersion();
// Write unfinished header... We need to update the size once we're done writing.
std::streamoff start = f.tellp();
Write(header, f);
const uint32 numParams = plugin.GetNumParameters();
WriteBE(numParams, f);
char name[MAX(kVstMaxProgNameLen + 1, 256)];
plugin.Dispatch(effGetProgramName, 0, 0, name, 0);
f.write(name, 28);
if(writeChunk)
{
char *chunk = nullptr;
uint32 chunkSize = mpt::saturate_cast<uint32>(plugin.Dispatch(effGetChunk, 1, 0, &chunk, 0));
if(chunkSize && chunk)
{
WriteBE(chunkSize, f);
f.write(chunk, chunkSize);
} else
{
// The plugin returned no chunk! Gracefully go back and save parameters instead...
writeChunk = false;
}
}
if(!writeChunk)
{
for(uint32 p = 0; p < numParams; p++)
{
WriteBE(plugin.GetParameter(p), f);
}
}
// Now we know the correct chunk size.
std::streamoff end = f.tellp();
header.byteSize = static_cast<VstInt32>(end - start - 8);
header.fxMagic = writeChunk ? chunkPresetMagic : fMagic;
header.ConvertEndianness();
f.seekp(start);
Write(header, f);
f.seekp(end);
}