ASIO backend, part 8

add control panel button
last commit unless it doesn't work somewhere

src/audio/abstract.cpp

@@ -45,6 +45,10 @@ void TAAudio::acceptDeviceStatus() {
   deviceStatus=TA_AUDIO_DEVICE_OK;
 }
 
+int TAAudio::specialCommand(TAAudioCommand which) {
+  return -1;
+}
+
 bool TAAudio::quit() {
   return true;
 }

src/audio/asio.cpp

@@ -319,6 +319,16 @@ void* TAAudioASIO::getContext() {
   return (void*)&driverInfo;
 }
 
+int TAAudioASIO::specialCommand(TAAudioCommand which) {
+  switch (which) {
+    case TA_AUDIO_CMD_SETUP:
+      if (ASIOControlPanel()==ASE_NotPresent) return 0;
+      return 1;
+      break;
+  }
+  return -1;
+}
+
 bool TAAudioASIO::quit() {
   if (!initialized) return false;
 

src/audio/asio.h

@@ -47,6 +47,7 @@ class TAAudioASIO: public TAAudio {
     String getFormatName(ASIOSampleType which);
 
     void* getContext();
+    int specialCommand(TAAudioCommand which);
     bool quit();
     bool setRun(bool run);
     bool init(TAAudioDesc& request, TAAudioDesc& response);

src/audio/taAudio.h

@@ -45,6 +45,11 @@ enum TAAudioDeviceStatus {
   TA_AUDIO_DEVICE_REMOVED
 };
 
+enum TAAudioCommand {
+  // open control panel for audio device
+  TA_AUDIO_CMD_SETUP=0
+};
+
 enum TAAudioFormat {
   TA_AUDIO_FORMAT_F32=0,
   TA_AUDIO_FORMAT_F64,
@@ -184,6 +189,7 @@ class TAAudio {
     void setCallback(void (*callback)(void*,float**,float**,int,int,unsigned int), void* user);
 
     virtual void* getContext();
+    virtual int specialCommand(TAAudioCommand which);
     virtual bool quit();
     virtual bool setRun(bool run);
     virtual std::vector<String> listAudioDevices();