Basics of instrument loading in place.

Source/InstrumentLoader.h

@@ -0,0 +1,11 @@
+#pragma once
+#include "PluginProcessor.h"
+
+// Just specifies the interfaces for instrument loaders.
+
+class InstrumentLoader
+{
+public:
+	virtual void loadInstrumentData(int n, const unsigned char* data, JuceOplvstiAudioProcessor *proc) = 0;
+	virtual String getExtension() = 0;
+};

Source/PluginGui.cpp

@@ -1411,7 +1411,7 @@ void PluginGui::buttonClicked (Button* buttonThatWasClicked)
     bool PluginGui::isInterestedInFileDrag (const StringArray& files)
     {
 		// TODO: check extensions?
-        return true;
+        return 1 == files.size();
     }
 
     void PluginGui::fileDragEnter (const StringArray& files, int x, int y)
@@ -1432,6 +1432,9 @@ void PluginGui::buttonClicked (Button* buttonThatWasClicked)
 
     void PluginGui::filesDropped (const StringArray& files, int x, int y)
     {
+		if (isInterestedInFileDrag(files)) {
+			processor->loadInstrumentFromFile(files[0]);
+		}
         //message = "files dropped: " + files.joinIntoString ("\n");
 
         //somethingIsBeingDraggedOver = false;

Source/PluginProcessor.cpp

@@ -2,6 +2,7 @@
 #include "PluginGui.h"
 #include "EnumFloatParameter.h"
 #include "IntFloatParameter.h"
+#include "SbiLoader.h"
 
 //==============================================================================
 JuceOplvstiAudioProcessor::JuceOplvstiAudioProcessor()
@@ -11,7 +12,6 @@ JuceOplvstiAudioProcessor::JuceOplvstiAudioProcessor()
 	Opl = new Hiopl(44100);	// 1 second at 44100
 	Opl->SetSampleRate(44100);
 	Opl->EnableWaveformControl();
-	//Opl->EnableOpl3Mode();
 
 	// Initialize parameters
 
@@ -460,6 +460,37 @@ void JuceOplvstiAudioProcessor::setParameter (int index, float newValue)
 	}
 }
 
+void JuceOplvstiAudioProcessor::loadInstrumentFromFile(String filename)
+{
+	FILE* f = fopen(filename.toUTF8(), "rb");
+	unsigned char buf[MAX_INSTRUMENT_FILE_SIZE_BYTES];
+	int n = fread(buf, 1, MAX_INSTRUMENT_FILE_SIZE_BYTES, f);
+	SbiLoader* loader = new SbiLoader();
+	loader->loadInstrumentData(n, buf, this);
+	fclose(f);
+}
+
+void JuceOplvstiAudioProcessor::setParametersByRegister(int register_base, int op, uint8 value)
+{
+	register_base &= 0xF0;
+	switch (register_base) {
+	case 0x20:
+		break;
+	case 0x40:
+		break;
+	case 0x60:
+		break;
+	case 0x80:
+		break;
+	case 0xC0:
+		break;
+	case 0xE0:
+		break;
+	default:
+		break;
+	}
+}
+
 const String JuceOplvstiAudioProcessor::getParameterName (int index)
 {
 	return params[index]->getName();
@@ -482,12 +513,12 @@ const String JuceOplvstiAudioProcessor::getOutputChannelName (int channelIndex)
 
 bool JuceOplvstiAudioProcessor::isInputChannelStereoPair (int index) const
 {
-    return true;
+    return false;
 }
 
 bool JuceOplvstiAudioProcessor::isOutputChannelStereoPair (int index) const
 {
-    return true;
+    return false;
 }
 
 bool JuceOplvstiAudioProcessor::acceptsMidi() const

Source/PluginProcessor.h

@@ -1,9 +1,8 @@
 /*
   ==============================================================================
 
-    This file was auto-generated!
+    This file was initially auto-generated by the Introjucer.
-
+	Now it is safe to edit.
-    It contains the basic startup code for a Juce application.
 
   ==============================================================================
 */
@@ -40,6 +39,8 @@ public:
     //==============================================================================
     const String getName() const;
 
+    static const int JuceOplvstiAudioProcessor::MAX_INSTRUMENT_FILE_SIZE_BYTES = 1024;
+	
 	int getNumParameters();
 
     float getParameter (int index);
@@ -48,6 +49,8 @@ public:
 	void setIntParameter (String name, int newValue);
 	int getIntParameter (String name);
 	int getEnumParameter (String name);
+	void loadInstrumentFromFile(String filename);
+	void setParametersByRegister(int register_base, int op, uint8 value);
 
     const String getParameterName (int index);
     const String getParameterText (int index);
@@ -87,5 +90,4 @@ private:
     //==============================================================================
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (JuceOplvstiAudioProcessor)
 };
-
 #endif  // PLUGINPROCESSOR_H_INCLUDED

Source/SbiLoader.cpp

@@ -0,0 +1,34 @@
+#include "SbiLoader.h"
+
+
+SbiLoader::SbiLoader(void)
+{
+}
+
+void SbiLoader::loadInstrumentData(int n, const unsigned char* data, JuceOplvstiAudioProcessor *proc)
+{
+	if (strncmp("SBI", (const char*)data, 3)) {
+		data += 40;
+		proc->setParametersByRegister(0x20, 0, data[0]);
+		proc->setParametersByRegister(0x20, 1, data[1]);
+		proc->setParametersByRegister(0x40, 0, data[2]);
+		proc->setParametersByRegister(0x40, 1, data[3]);
+		proc->setParametersByRegister(0x60, 0, data[4]);
+		proc->setParametersByRegister(0x60, 1, data[5]);
+		proc->setParametersByRegister(0x80, 0, data[6]);
+		proc->setParametersByRegister(0x80, 1, data[7]);
+		proc->setParametersByRegister(0xE0, 0, data[8]);
+		proc->setParametersByRegister(0xE0, 1, data[9]);
+		proc->setParametersByRegister(0xC0, 1, data[10]);
+	} // else throw "Invalid header";
+}
+
+String SbiLoader::getExtension()
+{
+	return String("sbi");
+}
+
+SbiLoader::~SbiLoader(void)
+{
+}
+

Source/SbiLoader.h

@@ -0,0 +1,13 @@
+#pragma once
+#include "c:\code\juceoplvsti\source\instrumentloader.h"
+class SbiLoader :
+	public InstrumentLoader
+{
+public:
+	SbiLoader(void);
+	virtual ~SbiLoader(void);
+
+	void loadInstrumentData(int n, const unsigned char* data, JuceOplvstiAudioProcessor *proc);
+	String getExtension();
+};
+

Source/hiopl.cpp

@@ -82,10 +82,6 @@ void Hiopl::EnableWaveformControl() {
 	_WriteReg(0x01, 0x20);
 }
 
-void Hiopl::EnableOpl3Mode() {
-	_WriteReg(0x105, 0x1);
-}
-
 void Hiopl::SetWaveform(int ch, int osc, Waveform wave) {
 	int offset = this->_GetOffset(ch, osc);
 	_WriteReg(0xe0+offset, (Bit8u)wave, 0x7);