int
RemotePluginClient::getOutputCount()
{
writeOpcode(m_controlRequestFd, RemotePluginGetOutputCount);
m_numOutputs = readInt(m_controlResponseFd);
sizeShm();
return m_numOutputs;
}
void
RemotePluginClient::setBufferSize(int s)
{
if (s == m_bufferSize) return;
m_bufferSize = s;
sizeShm();
writeOpcode(&m_shmControl->ringBuffer, RemotePluginSetBufferSize);
writeInt(&m_shmControl->ringBuffer, s);
commitWrite(&m_shmControl->ringBuffer);
waitForServer();
}
void
RemotePluginServer::dispatchControlEvents()
{
RemotePluginOpcode opcode = RemotePluginNoOpcode;
static float *parameterBuffer = 0;
tryRead(m_controlRequestFd, &opcode, sizeof(RemotePluginOpcode));
switch (opcode) {
case RemotePluginGetVersion:
writeFloat(m_controlResponseFd, getVersion());
break;
case RemotePluginGetName:
writeString(m_controlResponseFd, getName());
break;
case RemotePluginGetMaker:
writeString(m_controlResponseFd, getMaker());
break;
case RemotePluginTerminate:
terminate();
break;
case RemotePluginGetInputCount:
m_numInputs = getInputCount();
writeInt(m_controlResponseFd, m_numInputs);
break;
case RemotePluginGetOutputCount:
m_numOutputs = getOutputCount();
writeInt(m_controlResponseFd, m_numOutputs);
break;
case RemotePluginGetParameterCount:
writeInt(m_controlResponseFd, getParameterCount());
break;
case RemotePluginGetParameterName:
writeString(m_controlResponseFd, getParameterName(readInt(m_controlRequestFd)));
break;
case RemotePluginGetParameter:
writeFloat(m_controlResponseFd, getParameter(readInt(m_controlRequestFd)));
break;
case RemotePluginGetParameterDefault:
writeFloat(m_controlResponseFd, getParameterDefault(readInt(m_controlRequestFd)));
break;
case RemotePluginGetParameters:
{
if (!parameterBuffer) {
parameterBuffer = new float[getParameterCount()];
}
int p0 = readInt(m_controlRequestFd);
int pn = readInt(m_controlRequestFd);
getParameters(p0, pn, parameterBuffer);
tryWrite(m_controlResponseFd, parameterBuffer, (pn - p0 + 1) * sizeof(float));
break;
}
case RemotePluginHasMIDIInput:
{
bool m = hasMIDIInput();
tryWrite(m_controlResponseFd, &m, sizeof(bool));
break;
}
case RemotePluginGetProgramCount:
writeInt(m_controlResponseFd, getProgramCount());
break;
case RemotePluginGetProgramName:
writeString(m_controlResponseFd, getProgramName(readInt(m_controlRequestFd)));
break;
case RemotePluginIsReady:
{
if (!m_shm) sizeShm();
bool b(isReady());
std::cerr << "isReady: returning " << b << std::endl;
tryWrite(m_controlResponseFd, &b, sizeof(bool));
}
case RemotePluginSetDebugLevel:
{
RemotePluginDebugLevel newLevel = m_debugLevel;
tryRead(m_controlRequestFd, &newLevel, sizeof(RemotePluginDebugLevel));
setDebugLevel(newLevel);
m_debugLevel = newLevel;
break;
}
case RemotePluginWarn:
{
bool b = warn(readString(m_controlRequestFd));
tryWrite(m_controlResponseFd, &b, sizeof(bool));
break;
}
case RemotePluginShowGUI:
{
showGUI(readString(m_controlRequestFd));
break;
}
case RemotePluginHideGUI:
{
hideGUI();
break;
}
//Deryabin Andrew: vst chunks support
case RemotePluginGetVSTChunk:
{
std::vector<char> chunk = getVSTChunk();
writeRaw(m_controlResponseFd, chunk);
break;
}
case RemotePluginSetVSTChunk:
{
std::vector<char> chunk = readRaw(m_controlRequestFd);
setVSTChunk(chunk);
break;
}
//Deryabin Andrew: vst chunks support: end code
case RemotePluginNoOpcode:
break;
case RemotePluginReset:
reset();
break;
default:
std::cerr << "WARNING: RemotePluginServer::dispatchControlEvents: unexpected opcode "
<< opcode << std::endl;
}
}
void
RemotePluginServer::dispatchProcessEvents()
{
RemotePluginOpcode opcode = RemotePluginNoOpcode;
tryRead(&m_shmControl->ringBuffer, &opcode, sizeof(RemotePluginOpcode));
// std::cerr << "read opcode: " << opcode << std::endl;
switch (opcode) {
case RemotePluginProcess:
{
if (m_bufferSize < 0) {
std::cerr << "ERROR: RemotePluginServer: buffer size must be set before process" << std::endl;
return;
}
if (m_numInputs < 0) {
std::cerr << "ERROR: RemotePluginServer: input count must be tested before process" << std::endl;
return;
}
if (m_numOutputs < 0) {
std::cerr << "ERROR: RemotePluginServer: output count must be tested before process" << std::endl;
return;
}
if (!m_shm) {
sizeShm();
if (!m_shm) {
std::cerr << "ERROR: RemotePluginServer: no shared memory region available" << std::endl;
return;
}
}
// std::cerr << "server process: entering" << std::endl;
size_t blocksz = m_bufferSize * sizeof(float);
for (int i = 0; i < m_numInputs; ++i) {
m_inputs[i] = (float *)(m_shm + i * blocksz);
}
for (int i = 0; i < m_numOutputs; ++i) {
m_outputs[i] = (float *)(m_shm + (i + m_numInputs) * blocksz);
}
process(m_inputs, m_outputs);
// std::cerr << "server process: written" << std::endl;
break;
}
case RemotePluginSetParameter:
{
int pn(readInt(&m_shmControl->ringBuffer));
setParameter(pn, readFloat(&m_shmControl->ringBuffer));
break;
}
case RemotePluginSetCurrentProgram:
setCurrentProgram(readInt(&m_shmControl->ringBuffer));
break;
case RemotePluginSendMIDIData:
{
int events = 0;
int *frameoffsets = 0;
unsigned char *data = readMIDIData(&m_shmControl->ringBuffer, &frameoffsets, events);
if (events && data && frameoffsets) {
// std::cerr << "RemotePluginServer::sendMIDIData(" << events << ")" << std::endl;
sendMIDIData(data, frameoffsets, events);
}
break;
}
case RemotePluginSetBufferSize:
{
int newSize = readInt(&m_shmControl->ringBuffer);
setBufferSize(newSize);
m_bufferSize = newSize;
break;
}
case RemotePluginSetSampleRate:
setSampleRate(readInt(&m_shmControl->ringBuffer));
break;
default:
std::cerr << "WARNING: RemotePluginServer::dispatchProcessEvents: unexpected opcode "
<< opcode << std::endl;
}
}
