public static DSPPlugin LoadLibrary(string moduleFileName, IntPtr parentWindowHandle)
{
DSPPluginImpl plugin = new DSPPluginImpl();
Debug.WriteLine("Loading DSP Plugin: " + Path.GetFullPath(moduleFileName));
// LoadLibrary
IntPtr hModule = NativeMethods.LoadLibrary(Path.GetFullPath(moduleFileName));
if (hModule == IntPtr.Zero)
{
Debug.WriteLine(" - Failed to LoadLibrary.");
return(null);
}
// Get address of winampDSPGetHeader2()
var getHeader = NativeMethods.GetProcAddress <NativeMethods.winampDSPGetHeader2Delegate>(hModule, "winampDSPGetHeader2");
if (getHeader == null)
{
Debug.WriteLine(" - Failed to GetProcAddress(winampDSPGetHeader2). ");
NativeMethods.FreeLibrary(hModule);
return(null);
}
// Get winampDSPHeaderEx heder from winampDSPGetHeader2()
IntPtr pHeader = getHeader(parentWindowHandle);
if (pHeader == IntPtr.Zero)
{
Debug.WriteLine(" - Failed to winampDSPGetHeader2()");
NativeMethods.FreeLibrary(hModule);
return(null);
}
var header = NativeMethods.PtrToStructure <NativeMethods.winampDSPHeaderEx>(pHeader);
Debug.WriteLine(" + Plug-in: " + header.Description);
Debug.WriteLine(" + Header version: " + header.DspHeaderVersion);
// enumrate modules
List <DSPModule> modules = new List <DSPModule>();
var GetModule = NativeMethods.GetDelegateFromFunctionPtr <NativeMethods.GetModuleDelegate>(header.GetModule);
for (int i = 0; ; i++)
{
IntPtr p = GetModule(i);
if (p == IntPtr.Zero)
{
break;
}
Marshal.WriteIntPtr(new IntPtr(p.ToInt64() + 4), parentWindowHandle);
Marshal.WriteIntPtr(new IntPtr(p.ToInt64() + 8), hModule);
var module = DSPModuleImpl.FromModulePtr(p);
Debug.WriteLine(" + Module #" + (i + 1) + ": " + module.Description);
modules.Add(module);
}
plugin.Loaded = true;
plugin.ModuleHandle = hModule;
plugin.ModulePath = moduleFileName;
plugin.DspHeaderVersion = header.DspHeaderVersion;
plugin.Description = header.Description;
plugin.Modules = modules.AsReadOnly();
return(plugin);
}
/// <summary>
/// Load a plugin.
/// </summary>
/// <param name="dspPluginFileName"></param>
/// <param name="parentWindowHandle"></param>
/// <returns></returns>
public static DSPPlugin LoadDSPPlugin(string dspPluginFileName, IntPtr parentWindowHandle)
{
return(DSPPluginImpl.LoadLibrary(dspPluginFileName, parentWindowHandle));
}
