/[svn]/libgig/trunk/src/gig.h

Diff of /libgig/trunk/src/gig.h

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-revision 2922 by schoenebeck,
Wed May 18 18:04:49 2016 UTC
+revision 3324 by schoenebeck,
Fri Jul 21 13:05:39 2017 UTC
 Line 2
   *                                                                         *
   *   libgig - C++ cross-platform Gigasampler format file access library    *
   *                                                                         *
-  *   Copyright (C) 2003-2016 by Christian Schoenebeck                      *
+  *   Copyright (C) 2003-2017 by Christian Schoenebeck                      *
   *                              <cuse@users.sourceforge.net>               *
   *                                                                         *
   *   This library is free software; you can redistribute it and/or modify  *
 Line 27
  #include "DLS.h"
  #include <vector>
+ #ifndef __has_feature
+ # define __has_feature(x) 0
+ #endif
+ #ifndef HAVE_RTTI
+ # if __GXX_RTTI || __has_feature(cxx_rtti) || _CPPRTTI
+ #  define HAVE_RTTI 1
+ # else
+ #  define HAVE_RTTI 0
+ # endif
+ #endif
+ #if HAVE_RTTI
+ # include <typeinfo>
+ #else
+ # warning No RTTI available!
+ #endif
  #if WORDS_BIGENDIAN
  # define LIST_TYPE_3PRG 0x33707267
  # define LIST_TYPE_3EWL 0x3365776C
-Line 45
+Line 61
  # define CHUNK_ID_SCRI  0x53637269 // own gig format extension
  # define CHUNK_ID_LSNM  0x4c534e4d // own gig format extension
  # define CHUNK_ID_SCSL  0x5343534c // own gig format extension
+ # define CHUNK_ID_LSDE  0x4c534445 // own gig format extension
  #else  // little endian
  # define LIST_TYPE_3PRG 0x67727033
  # define LIST_TYPE_3EWL 0x6C776533
-Line 63
+Line 80
  # define CHUNK_ID_SCRI  0x69726353 // own gig format extension
  # define CHUNK_ID_LSNM  0x4d4e534c // own gig format extension
  # define CHUNK_ID_SCSL  0x4c534353 // own gig format extension
+ # define CHUNK_ID_LSDE  0x4544534c // own gig format extension
  #endif // WORDS_BIGENDIAN
+ #ifndef GIG_DECLARE_ENUM
+ # define GIG_DECLARE_ENUM(type, ...) enum type { __VA_ARGS__ }
+ #endif
+ // just symbol prototyping (since Serialization.h not included by default here)
+ namespace Serialization { class Archive; }
  /** Gigasampler/GigaStudio specific classes and definitions */
  namespace gig {
-Line 90 
 namespace gig {
+Line 115 
 namespace gig {
          }
      };
-     /** Standard types of sample loops. */
+     /** Standard types of sample loops.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(loop_type_t,
          loop_type_normal        = 0x00000000,  ///< Loop forward (normal)
          loop_type_bidirectional = 0x00000001,  ///< Alternating loop (forward/backward, also known as Ping Pong)
          loop_type_backward      = 0x00000002   ///< Loop backward (reverse)
-     } loop_type_t;
+     );
-     /** Society of Motion Pictures and Television E time format. */
+     /** Society of Motion Pictures and Television E time format.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(smpte_format_t,
          smpte_format_no_offset          = 0x00000000,  ///< no SMPTE offset
          smpte_format_24_frames          = 0x00000018,  ///< 24 frames per second
          smpte_format_25_frames          = 0x00000019,  ///< 25 frames per second
          smpte_format_30_frames_dropping = 0x0000001D,  ///< 30 frames per second with frame dropping (30 drop)
          smpte_format_30_frames          = 0x0000001E   ///< 30 frames per second
-     } smpte_format_t;
+     );
-     /** Defines the shape of a function graph. */
+     /** Defines the shape of a function graph.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(curve_type_t,
          curve_type_nonlinear = 0,
          curve_type_linear    = 1,
          curve_type_special   = 2,
          curve_type_unknown   = 0xffffffff
-     } curve_type_t;
+     );
-     /** Dimensions allow to bypass one of the following controllers. */
+     /** Dimensions allow to bypass one of the following controllers.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(dim_bypass_ctrl_t,
          dim_bypass_ctrl_none,
          dim_bypass_ctrl_94,   ///< Effect 4 Depth (MIDI Controller 94)
          dim_bypass_ctrl_95    ///< Effect 5 Depth (MIDI Controller 95)
-     } dim_bypass_ctrl_t;
+     );
-     /** Defines how LFO3 is controlled by. */
+     /** Defines how LFO3 is controlled by.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(lfo3_ctrl_t,
          lfo3_ctrl_internal            = 0x00, ///< Only internally controlled.
          lfo3_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.
          lfo3_ctrl_aftertouch          = 0x02, ///< Only controlled by aftertouch controller.
          lfo3_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.
          lfo3_ctrl_internal_aftertouch = 0x04  ///< Controlled internally and by aftertouch controller.
-     } lfo3_ctrl_t;
+     );
-     /** Defines how LFO2 is controlled by. */
+     /** Defines how LFO2 is controlled by.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(lfo2_ctrl_t,
          lfo2_ctrl_internal            = 0x00, ///< Only internally controlled.
          lfo2_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.
          lfo2_ctrl_foot                = 0x02, ///< Only controlled by external foot controller.
          lfo2_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.
          lfo2_ctrl_internal_foot       = 0x04  ///< Controlled internally and by external foot controller.
-     } lfo2_ctrl_t;
+     );
-     /** Defines how LFO1 is controlled by. */
+     /** Defines how LFO1 is controlled by.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(lfo1_ctrl_t,
          lfo1_ctrl_internal            = 0x00, ///< Only internally controlled.
          lfo1_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.
          lfo1_ctrl_breath              = 0x02, ///< Only controlled by external breath controller.
          lfo1_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.
          lfo1_ctrl_internal_breath     = 0x04  ///< Controlled internally and by external breath controller.
-     } lfo1_ctrl_t;
+     );
-     /** Defines how the filter cutoff frequency is controlled by. */
+     /** Defines how the filter cutoff frequency is controlled by.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(vcf_cutoff_ctrl_t,
          vcf_cutoff_ctrl_none         = 0x00,
          vcf_cutoff_ctrl_none2        = 0x01,  ///< The difference between none and none2 is unknown
          vcf_cutoff_ctrl_modwheel     = 0x81,  ///< Modulation Wheel (MIDI Controller 1)
-Line 162 
 namespace gig {
+Line 211 
 namespace gig {
          vcf_cutoff_ctrl_genpurpose7  = 0xd2,  ///< General Purpose Controller 7 (Button, MIDI Controller 82)
          vcf_cutoff_ctrl_genpurpose8  = 0xd3,  ///< General Purpose Controller 8 (Button, MIDI Controller 83)
          vcf_cutoff_ctrl_aftertouch   = 0x80   ///< Key Pressure
-     } vcf_cutoff_ctrl_t;
+     );
-     /** Defines how the filter resonance is controlled by. */
+     /** Defines how the filter resonance is controlled by.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(vcf_res_ctrl_t,
          vcf_res_ctrl_none        = 0xffffffff,
          vcf_res_ctrl_genpurpose3 = 0,           ///< General Purpose Controller 3 (Slider, MIDI Controller 18)
          vcf_res_ctrl_genpurpose4 = 1,           ///< General Purpose Controller 4 (Slider, MIDI Controller 19)
          vcf_res_ctrl_genpurpose5 = 2,           ///< General Purpose Controller 5 (Button, MIDI Controller 80)
          vcf_res_ctrl_genpurpose6 = 3            ///< General Purpose Controller 6 (Button, MIDI Controller 81)
-     } vcf_res_ctrl_t;
+     );
      /**
       * Defines a controller that has a certain contrained influence on a
-Line 182 
 namespace gig {
+Line 234 
 namespace gig {
       * attenuation_ctrl_t, eg1_ctrl_t or eg2_ctrl_t) in your code!
       */
      struct leverage_ctrl_t {
-         typedef enum {
+         /** Defines possible controllers.
+          *
+          * @see enumCount(), enumKey(), enumKeys(), enumValue()
+          */
+         GIG_DECLARE_ENUM(type_t,
              type_none              = 0x00, ///< No controller defined
              type_channelaftertouch = 0x2f, ///< Channel Key Pressure
              type_velocity          = 0xff, ///< Key Velocity
              type_controlchange     = 0xfe  ///< Ordinary MIDI control change controller, see field 'controller_number'
-         } type_t;
+         );
          type_t type;              ///< Controller type
          uint   controller_number; ///< MIDI controller number if this controller is a control change controller, 0 otherwise
+         void serialize(Serialization::Archive* archive);
      };
      /**
-Line 220 
 namespace gig {
+Line 278 
 namespace gig {
       * dimension zones is always a power of two. All dimensions can have up
       * to 32 zones (except the layer dimension with only up to 8 zones and
       * the samplechannel dimension which currently allows only 2 zones).
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
       */
-     typedef enum {
+     GIG_DECLARE_ENUM(dimension_t,
          dimension_none              = 0x00, ///< Dimension not in use.
          dimension_samplechannel     = 0x80, ///< If used sample has more than one channel (thus is not mono).
          dimension_layer             = 0x81, ///< For layering of up to 8 instruments (and eventually crossfading of 2 or 4 layers).
-Line 256 
 namespace gig {
+Line 316 
 namespace gig {
          dimension_effect3depth      = 0x5d, ///< Effect 3 Depth (MIDI Controller 93)
          dimension_effect4depth      = 0x5e, ///< Effect 4 Depth (MIDI Controller 94)
          dimension_effect5depth      = 0x5f  ///< Effect 5 Depth (MIDI Controller 95)
-     } dimension_t;
+     );
      /**
       * Intended for internal usage: will be used to convert a dimension value
       * into the corresponding dimension bit number.
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
       */
-     typedef enum {
+     GIG_DECLARE_ENUM(split_type_t,
          split_type_normal,         ///< dimension value between 0-127
          split_type_bit             ///< dimension values are already the sought bit number
-     } split_type_t;
+     );
      /** General dimension definition. */
      struct dimension_def_t {
-Line 276 
 namespace gig {
+Line 338 
 namespace gig {
          float        zone_size;  ///< Intended for internal usage: reflects the size of each zone (128/zones) for normal split types only, 0 otherwise.
      };
-     /** Defines which frequencies are filtered by the VCF. */
+     /** Defines which frequencies are filtered by the VCF.
-     typedef enum {
+      *
+      * @see enumCount(), enumKey(), enumKeys(), enumValue()
+      */
+     GIG_DECLARE_ENUM(vcf_type_t,
          vcf_type_lowpass      = 0x00,
          vcf_type_lowpassturbo = 0xff, ///< More poles than normal lowpass
          vcf_type_bandpass     = 0x01,
          vcf_type_highpass     = 0x02,
          vcf_type_bandreject   = 0x03
-     } vcf_type_t;
+     );
      /**
       * Defines the envelope of a crossfade.
-Line 304 
 namespace gig {
+Line 369 
 namespace gig {
          uint8_t out_start;  ///< Start position of fade out.
          uint8_t out_end;    ///< End postition of fade out.
          #endif // WORDS_BIGENDIAN
+         void serialize(Serialization::Archive* archive);
      };
      /** Reflects the current playback state for a sample. */
-Line 313 
 namespace gig {
+Line 380 
 namespace gig {
          file_offset_t loop_cycles_left;  ///< How many times the loop has still to be passed, this value will be decremented with each loop cycle.
      };
+     /**
+      * Defines behavior options for envelope generators (gig format extension).
+      *
+      * These options allow to override the precise default behavior of the
+      * envelope generators' state machines.
+      *
+      * @b Note: These EG options are an extension to the original gig file
+      * format, so these options are not available with the original
+      * Gigasampler/GigaStudio software! Currently only LinuxSampler and gigedit
+      * support these EG options!
+      *
+      * Adding these options to the original gig file format was necessary,
+      * because the precise state machine behavior of envelope generators of the
+      * gig format (and thus the default EG behavior if not explicitly overridden
+      * here) deviates from common, expected behavior of envelope generators in
+      * general, if i.e. compared with EGs of hardware synthesizers. For example
+      * with the gig format, the attack and decay stages will be aborted as soon
+      * as a note-off is received. Most other EG implementations in the industry
+      * however always run the attack and decay stages to their full duration,
+      * even if an early note-off arrives. The latter behavior is intentionally
+      * implemented in most other products, because it is required to resemble
+      * percussive sounds in a realistic manner.
+      */
+     struct eg_opt_t {
+         bool AttackCancel;     ///< Whether the "attack" stage is cancelled when receiving a note-off (default: @c true).
+         bool AttackHoldCancel; ///< Whether the "attack hold" stage is cancelled when receiving a note-off (default: @c true).
+         bool Decay1Cancel;     ///< Whether the "decay 1" stage is cancelled when receiving a note-off (default: @c true).
+         bool Decay2Cancel;     ///< Whether the "decay 2" stage is cancelled when receiving a note-off (default: @c true).
+         bool ReleaseCancel;    ///< Whether the "release" stage is cancelled when receiving a note-on (default: @c true).
+         eg_opt_t();
+         void serialize(Serialization::Archive* archive);
+     };
      // just symbol prototyping
      class File;
      class Instrument;
-Line 451 
 namespace gig {
+Line 552 
 namespace gig {
              uint16_t           SampleStartOffset;             ///< Number of samples the sample start should be moved (0 - 2000).
              double             SampleAttenuation;             ///< Sample volume (calculated from DLS::Sampler::Gain)
              uint8_t            DimensionUpperLimits[8];       ///< gig3: defines the upper limit of the dimension values for this dimension region. In case you wondered why this is defined on DimensionRegion level and not on Region level: the zone sizes (upper limits) of the velocity dimension can indeed differ in the individual dimension regions, depending on which zones of the other dimension types are currently selected. So this is exceptional for the velocity dimension only. All other dimension types have the same dimension zone sizes for every single DimensionRegion (of the sample Region).
+             eg_opt_t           EGOptions;                     ///< [gig extension]: Behavior options which should be used for all 3 envelope generators.
              // derived attributes from DLS::Sampler
              using DLS::Sampler::UnityNote;
-Line 486 
 namespace gig {
+Line 588 
 namespace gig {
              DimensionRegion(RIFF::List* _3ewl, const DimensionRegion& src);
             ~DimensionRegion();
              void CopyAssign(const DimensionRegion* orig, const std::map<Sample*,Sample*>* mSamples);
+             void serialize(Serialization::Archive* archive);
              friend class Region;
+             friend class Serialization::Archive;
          private:
              typedef enum { ///< Used to decode attenuation, EG1 and EG2 controller
                  // official leverage controllers as they were defined in the original Gigasampler/GigaStudio format:
-Line 671 
 namespace gig {
+Line 775 
 namespace gig {
              virtual void  UpdateChunks(progress_t* pProgress);
              void CopyAssignMeta(const Sample* orig);
              void CopyAssignWave(const Sample* orig);
+             uint32_t GetWaveDataCRC32Checksum();
+             bool VerifyWaveData(uint32_t* pActually = NULL);
          protected:
              static size_t        Instances;               ///< Number of instances of class Sample.
              static buffer_t      InternalDecompressionBuffer; ///< Buffer used for decompression as well as for truncation of 24 Bit -> 16 Bit samples.
-Line 685 
 namespace gig {
+Line 791 
 namespace gig {
              unsigned long        FileNo;                  ///< File number (> 0 when sample is stored in an extension file, 0 when it's in the gig)
              RIFF::Chunk*         pCk3gix;
              RIFF::Chunk*         pCkSmpl;
-             uint32_t             crc;                     ///< CRC-32 checksum of the raw sample data
+             uint32_t             crc;                     ///< Reflects CRC-32 checksum of the raw sample data at the last time when the sample's raw wave form data has been modified consciously by the user by calling Write().
-             Sample(File* pFile, RIFF::List* waveList, file_offset_t WavePoolOffset, unsigned long fileNo = 0);
+             Sample(File* pFile, RIFF::List* waveList, file_offset_t WavePoolOffset, unsigned long fileNo = 0, int index = -1);
             ~Sample();
+             uint32_t CalculateWaveDataChecksum();
              // Guess size (in bytes) of a compressed sample
              inline file_offset_t GuessSize(file_offset_t samples) {
-Line 1011 
 namespace gig {
+Line 1118 
 namespace gig {
              void   SetScriptAsText(const String& text);
              void   SetGroup(ScriptGroup* pGroup);
              ScriptGroup* GetGroup() const;
+             void   CopyAssign(const Script* orig);
          protected:
              Script(ScriptGroup* group, RIFF::Chunk* ckScri);
              virtual ~Script();
-Line 1267 
 namespace gig {
+Line 1375 
 namespace gig {
              virtual void LoadInstruments(progress_t* pProgress);
              virtual void LoadScriptGroups();
              void SetSampleChecksum(Sample* pSample, uint32_t crc);
+             uint32_t GetSampleChecksum(Sample* pSample);
+             uint32_t GetSampleChecksumByIndex(int index);
+             bool VerifySampleChecksumTable();
+             bool RebuildSampleChecksumTable();
+             int  GetWaveTableIndexOf(gig::Sample* pSample);
              friend class Region;
              friend class Sample;
              friend class Instrument;
-Line 1289 
 namespace gig {
+Line 1402 
 namespace gig {
       */
      class Exception : public DLS::Exception {
          public:
-             Exception(String Message);
+             Exception(String format, ...);
+             Exception(String format, va_list arg);
              void PrintMessage();
+         protected:
+             Exception();
      };
+ #if HAVE_RTTI
+     size_t enumCount(const std::type_info& type);
+     const char* enumKey(const std::type_info& type, size_t value);
+     bool        enumKey(const std::type_info& type, String key);
+     const char** enumKeys(const std::type_info& type);
+ #endif // HAVE_RTTI
+     size_t enumCount(String typeName);
+     const char* enumKey(String typeName, size_t value);
+     bool        enumKey(String typeName, String key);
+     const char** enumKeys(String typeName);
+     size_t enumValue(String key);
      String libraryName();
      String libraryVersion();

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