public byte* QUERY_get_memory_data(SNES_MEMORY id)
{
string name = QUERY_MemoryNameForId(id);
if (!SharedMemoryBlocks.ContainsKey(name)) return null;
var smb = SharedMemoryBlocks[name];
return (byte*)smb.Ptr;
}
bool Handle_SIG(eMessage msg)
{
switch (msg)
{
default:
return(false);
case eMessage.eMessage_SIG_video_refresh:
{
int width = comm->width;
int height = comm->height;
if (video_refresh != null)
{
video_refresh((int *)comm->ptr, width, height);
}
break;
}
case eMessage.eMessage_SIG_input_poll:
break;
case eMessage.eMessage_SIG_input_state:
{
int port = comm->port;
int device = comm->device;
int index = comm->index;
int id = (int)comm->id;
if (input_state != null)
{
comm->value = (uint)input_state(port, device, index, id);
}
break;
}
case eMessage.eMessage_SIG_input_notify:
{
if (input_notify != null)
{
input_notify(comm->index);
}
break;
}
case eMessage.eMessage_SIG_audio_flush:
{
uint nsamples = comm->size;
if (audio_sample != null)
{
ushort *audiobuffer = ((ushort *)comm->ptr);
for (uint i = 0; i < nsamples;)
{
ushort left = audiobuffer[i++];
ushort right = audiobuffer[i++];
audio_sample(left, right);
}
}
break;
}
case eMessage.eMessage_SIG_path_request:
{
int slot = comm->slot;
string hint = comm->GetAscii();
string ret = hint;
if (pathRequest != null)
{
hint = pathRequest(slot, hint);
}
SetAscii(hint);
break;
}
case eMessage.eMessage_SIG_trace_callback:
{
if (traceCallback != null)
{
traceCallback(comm->GetAscii());
}
break;
}
case eMessage.eMessage_SIG_allocSharedMemory:
{
var name = comm->GetAscii();
var size = comm->size;
if (SharedMemoryBlocks.ContainsKey(name))
{
throw new InvalidOperationException("Re-defined a shared memory block. Check bsnes init/shutdown code. Block name: " + name);
}
//try reusing existing block; dispose it if it exists and if the size doesnt match
SharedMemoryBlock smb = null;
if (DeallocatedMemoryBlocks.ContainsKey(name))
{
smb = DeallocatedMemoryBlocks[name];
DeallocatedMemoryBlocks.Remove(name);
if (smb.Size != size)
{
smb.Dispose();
smb = null;
}
}
//allocate a new block if we have to
if (smb == null)
{
smb = new SharedMemoryBlock();
smb.Name = name;
smb.Size = (int)size;
smb.BlockName = InstanceName + smb.Name;
smb.Allocate();
}
comm->ptr = smb.Ptr;
SharedMemoryBlocks[smb.Name] = smb;
CopyString(smb.BlockName);
break;
}
case eMessage.eMessage_SIG_freeSharedMemory:
{
foreach (var block in SharedMemoryBlocks.Values)
{
if (block.Ptr == comm->ptr)
{
DeallocatedMemoryBlocks[block.Name] = block;
SharedMemoryBlocks.Remove(block.Name);
break;
}
}
break;
}
} //switch(msg)
Message(eMessage.eMessage_Resume);
return(true);
}
bool Handle_SIG(eMessage msg)
{
switch (msg)
{
default:
return(false);
case eMessage.eMessage_SIG_video_refresh:
{
int width = brPipe.ReadInt32();
int height = brPipe.ReadInt32();
bwPipe.Write(0); //offset in mapped memory buffer
bwPipe.Flush();
brPipe.ReadBoolean(); //dummy synchronization
if (video_refresh != null)
{
video_refresh((int *)mmvaPtr, width, height);
}
break;
}
case eMessage.eMessage_SIG_input_poll:
break;
case eMessage.eMessage_SIG_input_state:
{
int port = brPipe.ReadInt32();
int device = brPipe.ReadInt32();
int index = brPipe.ReadInt32();
int id = brPipe.ReadInt32();
ushort ret = 0;
if (input_state != null)
{
ret = input_state(port, device, index, id);
}
bwPipe.Write(ret);
bwPipe.Flush();
break;
}
case eMessage.eMessage_SIG_input_notify:
{
int index = brPipe.ReadInt32();
if (input_notify != null)
{
input_notify(index);
}
break;
}
case eMessage.eMessage_SIG_audio_flush:
{
int nsamples = brPipe.ReadInt32();
bwPipe.Write(0); //location to store audio buffer in
bwPipe.Flush();
brPipe.ReadInt32(); //dummy synchronization
if (audio_sample != null)
{
ushort *audiobuffer = ((ushort *)mmvaPtr);
for (int i = 0; i < nsamples;)
{
ushort left = audiobuffer[i++];
ushort right = audiobuffer[i++];
audio_sample(left, right);
}
}
bwPipe.Write(0); //dummy synchronization
bwPipe.Flush();
brPipe.ReadInt32(); //dummy synchronization
break;
}
case eMessage.eMessage_SIG_path_request:
{
int slot = brPipe.ReadInt32();
string hint = ReadPipeString();
string ret = hint;
if (pathRequest != null)
{
hint = pathRequest(slot, hint);
}
WritePipeString(hint);
break;
}
case eMessage.eMessage_SIG_trace_callback:
{
var trace = ReadPipeString();
if (traceCallback != null)
{
traceCallback(trace);
}
break;
}
case eMessage.eMessage_SIG_allocSharedMemory:
{
var name = ReadPipeString();
var size = brPipe.ReadInt32();
if (SharedMemoryBlocks.ContainsKey(name))
{
throw new InvalidOperationException("Re-defined a shared memory block. Check bsnes init/shutdown code. Block name: " + name);
}
//try reusing existing block; dispose it if it exists and if the size doesnt match
SharedMemoryBlock smb = null;
if (DeallocatedMemoryBlocks.ContainsKey(name))
{
smb = DeallocatedMemoryBlocks[name];
DeallocatedMemoryBlocks.Remove(name);
if (smb.Size != size)
{
smb.Dispose();
smb = null;
}
}
//allocate a new block if we have to
if (smb == null)
{
smb = new SharedMemoryBlock();
smb.Name = name;
smb.Size = size;
smb.BlockName = InstanceName + smb.Name;
smb.Allocate();
}
SharedMemoryBlocks[smb.Name] = smb;
WritePipeString(smb.BlockName);
break;
}
case eMessage.eMessage_SIG_freeSharedMemory:
{
string name = ReadPipeString();
var smb = SharedMemoryBlocks[name];
DeallocatedMemoryBlocks[name] = smb;
SharedMemoryBlocks.Remove(name);
break;
}
} //switch(msg)
return(true);
}