public virtual bool open(int block_size, int sample_rate)
{
dllHandle = win32.LoadLibraryExW(path, IntPtr.Zero, win32.LOAD_WITH_ALTERED_SEARCH_PATH);
if (dllHandle == IntPtr.Zero)
{
serr.println("vstidrv#open; dllHandle is null");
return(false);
}
mainProcPointer = win32.GetProcAddress(dllHandle, "main");
mainDelegate = (PVSTMAIN)Marshal.GetDelegateForFunctionPointer(mainProcPointer,
typeof(PVSTMAIN));
if (mainDelegate == null)
{
serr.println("vstidrv#open; mainDelegate is null");
return(false);
}
audioMaster = new audioMasterCallback(AudioMaster);
if (audioMaster == null)
{
serr.println("vstidrv#open; audioMaster is null");
return(false);
}
aEffectPointer = IntPtr.Zero;
try {
aEffectPointer = mainDelegate(audioMaster);
} catch (Exception ex) {
serr.println("vstidrv#open; ex=" + ex);
return(false);
}
if (aEffectPointer == IntPtr.Zero)
{
serr.println("vstidrv#open; aEffectPointer is null");
return(false);
}
blockSize = block_size;
sampleRate = sample_rate;
aEffect = new AEffectWrapper();
aEffect.aeffect = (AEffect)Marshal.PtrToStructure(aEffectPointer, typeof(AEffect));
aEffect.Dispatch(AEffectOpcodes.effOpen, 0, 0, IntPtr.Zero, 0);
int ret = aEffect.Dispatch(AEffectOpcodes.effSetSampleRate, 0, 0, IntPtr.Zero, (float)sampleRate);
#if DEBUG
sout.println("vstidrv#open; dll_path=" + path + "; ret for effSetSampleRate=" + ret);
#endif
aEffect.Dispatch(AEffectOpcodes.effSetBlockSize, 0, blockSize, IntPtr.Zero, 0);
// デフォルトのパラメータ値を取得
int num = aEffect.aeffect.numParams;
paramDefaults = new float[num];
for (int i = 0; i < num; i++)
{
paramDefaults[i] = aEffect.GetParameter(i);
}
return(true);
}
public virtual float getParameter(int index)
{
float ret = 0.0f;
try {
ret = aEffect.GetParameter(index);
} catch (Exception ex) {
serr.println("vstidrv#getParameter; ex=" + ex);
}
return(ret);
}