Automatic scanning of plugins added

SpiralSynthModularInfo.C

@@ -16,14 +16,19 @@
  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
 
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <dlfcn.h>
+
 #include "SpiralSynthModularInfo.h"
 #include "SpiralSynthPluginLocation.h"
 #include "FL/fl_draw.h"
 
 string SpiralInfo::LOCALE      = "EN";
-int    SpiralInfo::BUFSIZE     = 512;	
-int    SpiralInfo::FRAGSIZE    = 256;	
-int    SpiralInfo::FRAGCOUNT   = 8;	
+int    SpiralInfo::BUFSIZE     = 512;
+int    SpiralInfo::FRAGSIZE    = 256;
+int    SpiralInfo::FRAGCOUNT   = 8;
 int    SpiralInfo::SAMPLERATE  = 44100;
 long   SpiralInfo::MAXSAMPLE   = 32767;
 float  SpiralInfo::VALUECONV   = 1.0f/MAXSAMPLE;
@@ -55,43 +60,44 @@ SpiralSynthModularInfo* SpiralSynthModularInfo::Get()
 	{
 		m_SpiralSynthModularInfo = new SpiralSynthModularInfo;
 	}
-	
+
 	return m_SpiralSynthModularInfo;
 }
 
 SpiralSynthModularInfo::SpiralSynthModularInfo()
-{	
+{
 	BGIMG="None";
-	
+
 	// default plugins + path, check these before dist...
 	// this is one of the two plugin lists, th other is in
-	// the SpiralSound/Plugins/PluginList.txt for the 
+	// the SpiralSound/Plugins/PluginList.txt for the
 	// configure/make/install scripts
-	
+
 	PLUGIN_PATH = PLUGIN_PATH_LOCATION;
 
-	PLUGINVEC.push_back("OutputPlugin.so");	
-	PLUGINVEC.push_back("DiskWriterPlugin.so");	
-	PLUGINVEC.push_back("ScopePlugin.so");	
-	PLUGINVEC.push_back("MidiPlugin.so");	
-	PLUGINVEC.push_back("KeyboardPlugin.so");	
-	PLUGINVEC.push_back("ControllerPlugin.so");	
-	PLUGINVEC.push_back("MatrixPlugin.so");	
-	PLUGINVEC.push_back("SeqSelectorPlugin.so");	
-	PLUGINVEC.push_back("SequencerPlugin.so");	
+#ifdef SSM_EXPLICIT_PLUGIN_LIST
+	PLUGINVEC.push_back("OutputPlugin.so");
+	PLUGINVEC.push_back("DiskWriterPlugin.so");
+	PLUGINVEC.push_back("ScopePlugin.so");
+	PLUGINVEC.push_back("MidiPlugin.so");
+	PLUGINVEC.push_back("KeyboardPlugin.so");
+	PLUGINVEC.push_back("ControllerPlugin.so");
+	PLUGINVEC.push_back("MatrixPlugin.so");
+	PLUGINVEC.push_back("SeqSelectorPlugin.so");
+	PLUGINVEC.push_back("SequencerPlugin.so");
 	PLUGINVEC.push_back("PoshSamplerPlugin.so");
-	PLUGINVEC.push_back("WaveTablePlugin.so");	
-	PLUGINVEC.push_back("OscillatorPlugin.so");	
+	PLUGINVEC.push_back("WaveTablePlugin.so");
+	PLUGINVEC.push_back("OscillatorPlugin.so");
 	PLUGINVEC.push_back("LFOPlugin.so");
 	PLUGINVEC.push_back("NoisePlugin.so");
-	PLUGINVEC.push_back("EnvelopePlugin.so");	
+	PLUGINVEC.push_back("EnvelopePlugin.so");
 	PLUGINVEC.push_back("SampleHoldPlugin.so");
-	PLUGINVEC.push_back("NoteSnapPlugin.so");	
-	PLUGINVEC.push_back("MixerPlugin.so");	
-	PLUGINVEC.push_back("StereoMixerPlugin.so");	
-	PLUGINVEC.push_back("AmpPlugin.so");	
-	PLUGINVEC.push_back("RingModPlugin.so");	
-	PLUGINVEC.push_back("FilterPlugin.so");	
+	PLUGINVEC.push_back("NoteSnapPlugin.so");
+	PLUGINVEC.push_back("MixerPlugin.so");
+	PLUGINVEC.push_back("StereoMixerPlugin.so");
+	PLUGINVEC.push_back("AmpPlugin.so");
+	PLUGINVEC.push_back("RingModPlugin.so");
+	PLUGINVEC.push_back("FilterPlugin.so");
 	PLUGINVEC.push_back("SVFilterPlugin.so");	
 	PLUGINVEC.push_back("MoogFilterPlugin.so");	
 	PLUGINVEC.push_back("FormantPlugin.so");
@@ -111,13 +117,57 @@ SpiralSynthModularInfo::SpiralSynthModularInfo()
 	PLUGINVEC.push_back("SwitchPlugin.so");
 	PLUGINVEC.push_back("BeatMatchPlugin.so");
 	PLUGINVEC.push_back("LogicPlugin.so");
+#else
+	// Scan plugin path for plugins.
+	DIR *dp;
+	struct dirent *ep;
+	struct stat sb;
+	void *handle;
+	string fullpath;
+	const char *path = PLUGIN_PATH.c_str();
+
+	dp = opendir(path);
+	if (!dp) {
+		cerr << "WARNING: Could not open path " << path << endl;
+	} else {
+		while ((ep = readdir(dp))) {
+
+		// Need full path
+			fullpath = path;
+			fullpath.append(ep->d_name);
+
+		// Stat file to get type
+			if (!stat(fullpath.c_str(), &sb)) {
+
+			// We only want regular files
+				if (S_ISREG(sb.st_mode)) {
+
+				// We're not fussed about resolving symbols yet, since we are just
+				// checking if it's a DLL.
+					handle = dlopen(fullpath.c_str(), RTLD_LAZY);
+
+					if (!handle) {
+						cerr << "WARNING: File " << path << ep->d_name
+							<< " could not be examined" << endl;
+						cerr << "dlerror() output:" << endl;
+						cerr << dlerror() << endl;
+					} else {
+
+					// It's a DLL. Add name to list
+						PLUGINVEC.push_back(ep->d_name);
+					}
+				}
+			}
+		}
+	}
+#endif
 }
 
 void SpiralSynthModularInfo::StreamInPrefs(istream &s)
 {
 	// call base class
 	SpiralInfo::StreamInPrefs(s);
-	
+
 	char temp[256];
 	s>>temp>>temp;
 	s>>temp>>temp>>GUICOL_Tool;