aeffectx.h

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/*
 * aeffectx.h - simple header to allow VeSTige compilation and eventually work
 *
 * Copyright (c) 2006 Javier Serrano Polo <jasp00/at/users.sourceforge.net>
 * 
 * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program (see COPYING); if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 *
 */
#include <stdint.h>
#ifndef _AEFFECTX_H
#define _AEFFECTX_H

#define CCONST(a, b, c, d)( ( ( (int) a ) << 24 ) |             \
                                ( ( (int) b ) << 16 ) |         \
                                ( ( (int) c ) << 8 ) |          \
                                ( ( (int) d ) << 0 ) )

#define audioMasterAutomate 0
#define audioMasterVersion 1
#define audioMasterCurrentId 2
#define audioMasterIdle 3
#define audioMasterPinConnected 4
// unsupported? 5
#define audioMasterWantMidi 6
#define audioMasterGetTime 7
#define audioMasterProcessEvents 8
#define audioMasterSetTime 9
#define audioMasterTempoAt 10
#define audioMasterGetNumAutomatableParameters 11
#define audioMasterGetParameterQuantization 12
#define audioMasterIOChanged 13
#define audioMasterNeedIdle 14
#define audioMasterSizeWindow 15
#define audioMasterGetSampleRate 16
#define audioMasterGetBlockSize 17
#define audioMasterGetInputLatency 18
#define audioMasterGetOutputLatency 19
#define audioMasterGetPreviousPlug 20
#define audioMasterGetNextPlug 21
#define audioMasterWillReplaceOrAccumulate 22
#define audioMasterGetCurrentProcessLevel 23
#define audioMasterGetAutomationState 24
#define audioMasterOfflineStart 25
#define audioMasterOfflineRead 26
#define audioMasterOfflineWrite 27
#define audioMasterOfflineGetCurrentPass 28
#define audioMasterOfflineGetCurrentMetaPass 29
#define audioMasterSetOutputSampleRate 30
// unsupported? 31
#define audioMasterGetSpeakerArrangement 31 // deprecated in 2.4?
#define audioMasterGetVendorString 32
#define audioMasterGetProductString 33
#define audioMasterGetVendorVersion 34
#define audioMasterVendorSpecific 35
#define audioMasterSetIcon 36
#define audioMasterCanDo 37
#define audioMasterGetLanguage 38
#define audioMasterOpenWindow 39
#define audioMasterCloseWindow 40
#define audioMasterGetDirectory 41
#define audioMasterUpdateDisplay 42
#define audioMasterBeginEdit 43
#define audioMasterEndEdit 44
#define audioMasterOpenFileSelector 45
#define audioMasterCloseFileSelector 46 // currently unused
#define audioMasterEditFile 47 // currently unused
#define audioMasterGetChunkFile 48 // currently unused
#define audioMasterGetInputSpeakerArrangement 49 // currently unused

#define effFlagsHasEditor 1
#define effFlagsCanReplacing (1 << 4) // very likely
#define effFlagsIsSynth (1 << 8) // currently unused

#define effOpen 0
#define effClose 1 // currently unused
#define effSetProgram 2 // currently unused
#define effGetProgram 3 // currently unused
#define effGetProgramName 5 // currently unused
#define effGetParamName 8 // currently unused
#define effSetSampleRate 10
#define effSetBlockSize 11
#define effMainsChanged 12
#define effEditGetRect 13
#define effEditOpen 14
#define effEditClose 15
#define effEditIdle 19
#define effEditTop 20
#define effProcessEvents 25
// the next one from http://asseca.com/vst-24-specs/index.html
#define effGetPlugCategory 35
#define effGetEffectName 45
#define effGetVendorString 47
#define effGetProductString 48
#define effGetVendorVersion 49
#define effCanDo 51 // currently unused
/* from http://asseca.com/vst-24-specs/efIdle.html */
#define effIdle 53
/* from http://asseca.com/vst-24-specs/efGetParameterProperties.html */
#define effGetParameterProperties 56
#define effGetVstVersion 58 // currently unused
/* http://asseca.com/vst-24-specs/efShellGetNextPlugin.html */
#define effShellGetNextPlugin  70
/* The next two were gleaned from http://www.kvraudio.com/forum/printview.php?t=143587&start=0 */
#define effStartProcess 71
#define effStopProcess 72

#define effBeginSetProgram 67
#define effEndSetProgram 68

#ifdef WORDS_BIGENDIAN
// "VstP"
#define kEffectMagic 0x50747356
#else
// "PtsV"
#define kEffectMagic 0x56737450
#endif

#define kVstLangEnglish 1
#define kVstMidiType 1

struct RemoteVstPlugin;

#define kVstTransportPlaying (1 << 1)

#define kVstNanosValid (1 << 8)
#define kVstPpqPosValid (1 << 9)
#define kVstTempoValid (1 << 10)
#define kVstBarsValid (1 << 11)
#define kVstCyclePosValid (1 << 12)
#define kVstTimeSigValid (1 << 13)
#define kVstSmpteValid (1 << 14)
#define kVstClockValid (1 << 15)

struct _VstMidiEvent
{
        // 00
        int type;
        // 04
        int byteSize;
        // 08
        int deltaFrames;
        // 0c?
        int flags;
        // 10?
        int noteLength;
        // 14?
        int noteOffset;
        // 18
        char midiData[4];
        // 1c?
        char detune;
        // 1d?
        char noteOffVelocity;
        // 1e?
        char reserved1;
        // 1f?
        char reserved2;
};

typedef struct _VstMidiEvent VstMidiEvent;


struct _VstEvent
{
        char dump[sizeof (VstMidiEvent)];

};

typedef struct _VstEvent VstEvent;

struct _VstEvents
{
        // 00
        int numEvents;
        // 04
        void *reserved;
        // 08
        VstEvent * events[];
};

/* constants from http://www.rawmaterialsoftware.com/juceforum/viewtopic.php?t=3740&sid=183f74631fee71a493316735e2b9f28b */

enum Vestige2StringConstants
{
        VestigeMaxNameLen       = 64,
        VestigeMaxLabelLen      = 64,
        VestigeMaxShortLabelLen = 8,
        VestigeMaxCategLabelLen = 24,
        VestigeMaxFileNameLen   = 100
};


/* constants from http://asseca.com/vst-24-specs/efGetPlugCategory.html */

enum VstPlugCategory
{
        kPlugCategUnknown = 0,
        kPlugCategEffect,
        kPlugCategSynth,
        kPlugCategAnalysis,
        kPlugCategMastering,
        kPlugCategSpacializer,
        kPlugCategRoomFx,
        kPlugSurroundFx,
        kPlugCategRestoration,
        kPlugCategOfflineProcess,
        kPlugCategShell,
        kPlugCategGenerator,
        kPlugCategMaxCount
};

typedef struct _VstEvents VstEvents;

/* this struct taken from http://asseca.com/vst-24-specs/efGetParameterProperties.html */
struct _VstParameterProperties
{
        float stepFloat;              /* float step */
        float smallStepFloat;         /* small float step */
        float largeStepFloat;         /* large float step */
        char label[VestigeMaxLabelLen];  /* parameter label */
        int32_t flags;               /* @see VstParameterFlags */
        int32_t minInteger;          /* integer minimum */
        int32_t maxInteger;          /* integer maximum */
        int32_t stepInteger;         /* integer step */
        int32_t largeStepInteger;    /* large integer step */
        char shortLabel[VestigeMaxShortLabelLen]; /* short label, recommended: 6 + delimiter */
        int16_t displayIndex;        /* index where this parameter should be displayed (starting with 0) */
        int16_t category;            /* 0: no category, else group index + 1 */
        int16_t numParametersInCategory; /* number of parameters in category */
        int16_t reserved;            /* zero */
        char categoryLabel[VestigeMaxCategLabelLen]; /* category label, e.g. "Osc 1"  */
        char future[16];              /* reserved for future use */
};

typedef struct _VstParameterProperties VstParameterProperties;

/* this enum taken from http://asseca.com/vst-24-specs/efGetParameterProperties.html */
enum VstParameterFlags
{
        kVstParameterIsSwitch                = 1 << 0,  /* parameter is a switch (on/off) */
        kVstParameterUsesIntegerMinMax       = 1 << 1,  /* minInteger, maxInteger valid */
        kVstParameterUsesFloatStep           = 1 << 2,  /* stepFloat, smallStepFloat, largeStepFloat valid */
        kVstParameterUsesIntStep             = 1 << 3,  /* stepInteger, largeStepInteger valid */
        kVstParameterSupportsDisplayIndex    = 1 << 4,  /* displayIndex valid */
        kVstParameterSupportsDisplayCategory = 1 << 5,  /* category, etc. valid */
        kVstParameterCanRamp                 = 1 << 6   /* set if parameter value can ramp up/down */
};

struct _AEffect
{
        // Never use virtual functions!!!
        // 00-03
        int magic;
        // dispatcher 04-07
        intptr_t (* dispatcher) (struct _AEffect *, int, int, intptr_t, void *, float);
        // process, quite sure 08-0b
        void (* process) (struct _AEffect *, float **, float **, int);
        // setParameter 0c-0f
        void (* setParameter) (struct _AEffect *, int, float);
        // getParameter 10-13
        float (* getParameter) (struct _AEffect *, int);
        // programs 14-17
        int numPrograms;
        // Params 18-1b
        int numParams;
        // Input 1c-1f
        int numInputs;
        // Output 20-23
        int numOutputs;
        // flags 24-27
        int flags;
        // Fill somewhere 28-2b
        void *ptr1;
        void *ptr2;
        // Zeroes 2c-2f 30-33 34-37 38-3b
        char empty3[4 + 4 + 4];
        // 1.0f 3c-3f
        float unkown_float;
        // An object? pointer 40-43
        void *ptr3;
        // Zeroes 44-47
        void *user;
        // Id 48-4b
        int32_t uniqueID;
        // Don't know 4c-4f
        char unknown1[4];
        // processReplacing 50-53
        void (* processReplacing) (struct _AEffect *, float **, float **, int);
};

typedef struct _AEffect AEffect;

typedef struct _VstTimeInfo
{
    /* info from online documentation of VST provided by Steinberg */

    double samplePos;
    double sampleRate;
    double nanoSeconds;
    double ppqPos;
    double tempo;
    double barStartPos;
    double cycleStartPos;
    double cycleEndPos;
    int32_t   timeSigNumerator;
    int32_t   timeSigDenominator;
    int32_t   smpteOffset;
    int32_t   smpteFrameRate;
    int32_t   samplesToNextClock;
    int32_t   flags;

} VstTimeInfo;

typedef intptr_t (* audioMasterCallback) (AEffect *, int32_t, int32_t, intptr_t, void *, float);

#endif