chore(fmod): add files from Chensne/DragonNest

lib/vst/AEffect.h

@@ -0,0 +1,197 @@
+//-------------------------------------------------------------------------------------------------------
+// VST Plug-Ins SDK
+// Version 1.0
+// © 2003, Steinberg Media Technologies, All Rights Reserved
+//-------------------------------------------------------------------------------------------------------
+
+#ifndef __AEffect__
+#define __AEffect__
+
+/*	to create an Audio Effect for power pc's, create a
+	code resource
+	file type: 'aPcs'
+	resource type: 'aEff'
+	ppc header: none (raw pef)
+
+	for windows, it's a .dll
+
+	the only symbol searched for is:
+	AEffect *main(float (*audioMaster)(AEffect *effect, long opcode, long index,
+		long value, void *ptr, float opt));
+*/
+
+#if CARBON
+#if PRAGMA_STRUCT_ALIGN || __MWERKS__
+	#pragma options align=mac68k
+#endif
+#else
+#if PRAGMA_ALIGN_SUPPORTED || __MWERKS__
+	#pragma options align=mac68k
+#endif
+#endif
+#if defined __BORLANDC__
+	#pragma -a8
+#elif defined(WIN32) || defined(__FLAT__) || defined CBUILDER
+	#pragma pack(push)
+	#pragma pack(8)
+	#define VSTCALLBACK __cdecl
+#else
+	#define VSTCALLBACK
+#endif
+
+
+//-------------------------------------------------
+// Misc. Definition
+//-------------------------------------------------
+
+typedef struct AEffect AEffect;
+typedef	long (VSTCALLBACK *audioMasterCallback)(AEffect *effect, long opcode, long index,
+		long value, void *ptr, float opt);
+
+// prototype for plug-in main
+// AEffect *main(audioMasterCallback audioMaster);
+
+// Four Character Constant
+#define CCONST(a, b, c, d) \
+	 ((((long)a) << 24) | (((long)b) << 16) | (((long)c) << 8) | (((long)d) << 0))
+
+// Magic Number
+#define kEffectMagic CCONST ('V', 's', 't', 'P')
+
+
+//-------------------------------------------------
+// AEffect Structure
+//-------------------------------------------------
+struct AEffect
+{
+	long magic;			// must be kEffectMagic ('VstP')
+
+	long (VSTCALLBACK *dispatcher)(AEffect *effect, long opCode, long index, long value,
+		void *ptr, float opt);
+	
+	void (VSTCALLBACK *process)(AEffect *effect, float **inputs, float **outputs, long sampleframes);
+	
+	void (VSTCALLBACK *setParameter)(AEffect *effect, long index, float parameter);
+	float (VSTCALLBACK *getParameter)(AEffect *effect, long index);
+
+	long numPrograms;   // number of Programs
+	long numParams;		// all programs are assumed to have numParams parameters
+	long numInputs;		// number of Audio Inputs
+	long numOutputs;	// number of Audio Outputs
+
+	long flags;			// see constants (Flags Bits)
+
+	long resvd1;		// reserved for Host, must be 0 (Dont use it)
+	long resvd2;		// reserved for Host, must be 0 (Dont use it)
+
+	long initialDelay;	// for algorithms which need input in the first place
+
+	long realQualities;	// number of realtime qualities (0: realtime)
+	long offQualities;	// number of offline qualities (0: realtime only)
+	float ioRatio;		// input samplerate to output samplerate ratio, not used yet
+	
+	void *object;		// for class access (see AudioEffect.hpp), MUST be 0 else!
+	void *user;			// user access
+
+	long uniqueID;		// pls choose 4 character as unique as possible. (register it at Steinberg Web)
+						// this is used to identify an effect for save+load
+	long version;		// (example 1100 for version 1.1.0.0)
+
+	void (VSTCALLBACK *processReplacing)(AEffect *effect, float **inputs, float **outputs, long sampleframes);
+
+	char future[60];	// pls zero
+};
+
+//-------------------------------------------------
+// Flags Bits
+//-------------------------------------------------
+
+#define effFlagsHasEditor		1	// if set, is expected to react to editor messages
+#define effFlagsHasClip			2	// return > 1. in getVu() if clipped
+#define effFlagsHasVu			4	// return vu value in getVu(); > 1. means clipped
+#define effFlagsCanMono			8	// if numInputs == 2, makes sense to be used for mono in
+#define effFlagsCanReplacing	16	// supports in place output (processReplacing() exsists)
+#define effFlagsProgramChunks	32	// program data are handled in formatless chunks
+
+//-------------------------------------------------
+// Dispatcher OpCodes
+//-------------------------------------------------
+
+enum
+{
+	effOpen = 0,		// initialise
+	effClose,			// exit, release all memory and other resources!
+
+	effSetProgram,		// program no in <value>
+	effGetProgram,		// return current program no.
+	effSetProgramName,	// user changed program name (max 24 char + 0) to as passed in string 
+	effGetProgramName,	// stuff program name (max 24 char + 0) into string 
+
+	effGetParamLabel,	// stuff parameter <index> label (max 8 char + 0) into string
+						// (examples: sec, dB, type)
+	effGetParamDisplay,	// stuff parameter <index> textual representation into string
+						// (examples: 0.5, -3, PLATE)
+	effGetParamName,	// stuff parameter <index> label (max 8 char + 0) into string
+						// (examples: Time, Gain, RoomType) 
+	effGetVu,			// called if (flags & (effFlagsHasClip | effFlagsHasVu))
+
+	// system
+	effSetSampleRate,	// in opt (float value in Hz; for example 44100.0Hz)
+	effSetBlockSize,	// in value (this is the maximun size of an audio block,
+						// pls check sampleframes in process call)
+	effMainsChanged,	// the user has switched the 'power on' button to
+						// value (0 off, else on). This only switches audio
+						// processing; you should flush delay buffers etc.
+	
+	// editor
+	effEditGetRect,		// stuff rect (top, left, bottom, right) into ptr
+	effEditOpen,		// system dependant Window pointer in ptr
+	effEditClose,		// no arguments
+	effEditDraw,		// draw method, ptr points to rect (MAC Only)
+	effEditMouse,		// index: x, value: y (MAC Only)
+	effEditKey,			// system keycode in value
+	effEditIdle,		// no arguments. Be gentle!
+	effEditTop,			// window has topped, no arguments
+	effEditSleep,		// window goes to background
+	
+	effIdentify,		// returns 'NvEf'
+	effGetChunk,		// host requests pointer to chunk into (void**)ptr, byteSize returned
+	effSetChunk,		// plug-in receives saved chunk, byteSize passed
+ 
+	effNumOpcodes		
+};
+
+//-------------------------------------------------
+// AudioMaster OpCodes
+//-------------------------------------------------
+
+enum
+{
+	audioMasterAutomate = 0,		// index, value, returns 0
+	audioMasterVersion,				// VST Version supported (for example 2200 for VST 2.2)
+	audioMasterCurrentId,			// Returns the unique id of a plug that's currently
+									// loading
+	audioMasterIdle,				// Call application idle routine (this will
+									// call effEditIdle for all open editors too) 
+	audioMasterPinConnected			// Inquire if an input or output is beeing connected;
+									// index enumerates input or output counting from zero,
+									// value is 0 for input and != 0 otherwise. note: the
+									// return value is 0 for <true> such that older versions
+									// will always return true.	
+};
+
+#if CARBON
+#if PRAGMA_STRUCT_ALIGN || __MWERKS__
+	#pragma options align=reset
+#endif
+#else
+#if PRAGMA_ALIGN_SUPPORTED || __MWERKS__
+	#pragma options align=reset
+#elif defined(WIN32) || defined(__FLAT__)
+	#pragma pack(pop)
+#elif defined __BORLANDC__
+	#pragma -a-
+#endif
+#endif
+
+#endif	// __AEffect__