/[svn]/libgig/trunk/src/gig.h
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revision 36 by schoenebeck, Wed Mar 10 21:34:28 2004 UTC revision 231 by schoenebeck, Sun Sep 5 00:46:28 2004 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   libgig - C++ cross-platform Gigasampler format file loader library    *   *   libgig - C++ cross-platform Gigasampler format file loader library    *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003 by Christian Schoenebeck                           *   *   Copyright (C) 2003, 2004 by Christian Schoenebeck                     *
6   *                         <cuse@users.sourceforge.net>                    *   *                               <cuse@users.sourceforge.net>              *
7   *                                                                         *   *                                                                         *
8   *   This library is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 63  Line 63 
63  #define GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(x)                  ((x >> 1) & 0x03)  #define GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(x)                  ((x >> 1) & 0x03)
64  #define GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(x)                   ((x >> 3) & 0x03)  #define GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(x)                   ((x >> 3) & 0x03)
65  #define GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(x)                 ((x >> 5) & 0x03)  #define GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(x)                 ((x >> 5) & 0x03)
66  //TODO: the transformation functions are not very accurate compared to the original ones  #define GIG_VELOCITY_TRANSFORM_NONLINEAR(x,dynamic,scale)       (-0.1666235937e0+0.5143775427e-4*x*x+0.5318278732e-1*dynamic*dynamic-0.3560390502e-4*scale*scale+0.4683631221e-2*x-0.9484386143e-1*dynamic+0.8030068910e-2*scale)
67  #define GIG_VELOCITY_TRANSFORM_NONLINEAR(x,dynamic,scale)       ((1.0-1.0/pow(x,1.0/(129.0-x))) * (1.0+scale/20.0) + (5.0-dynamic)*pow(x/300.0* (1.0+2.0*scale/128.0),2))  #define GIG_VELOCITY_TRANSFORM_LINEAR(x,dynamic,scale)          (((1.0+scale*3.0/128.0)/110.0)*x+dynamic/5.0+dynamic*scale)
68  #define GIG_VELOCITY_TRANSFORM_LINEAR(x,dynamic,scale)          ((1.0+scale*3.0/128.0)/110.0*x+(5.0-dynamic)/5.0+(5.0-dynamic)*scale)  #define GIG_VELOCITY_TRANSFORM_SPECIAL(x,dynamic,scale)         (-0.1630504921e0+0.5794551347e-4*x*x+0.8361491099e-2*dynamic*dynamic-0.4303475615e-5*scale*scale+0.2085522765e-2*x+0.1313747345e-1*dynamic+0.3220916836e-2*scale)
 #define GIG_VELOCITY_TRANSFORM_SPECIAL(x,dynamic,scale)         ((1.0+9.0*scale/129.0)*(1.0-1.0/pow(x,1.0/(129.0-x))+pow(3.0*x/pow(129,2),2)+pow((5.0-dynamic)*x/500.0,2)))  
69    
70  /** Gigasampler specific classes and definitions */  /** Gigasampler specific classes and definitions */
71  namespace gig {  namespace gig {
# Line 167  namespace gig { Line 166  namespace gig {
166          vcf_res_ctrl_genpurpose5 = 2,           ///< General Purpose Controller 5 (Button, MIDI Controller 80)          vcf_res_ctrl_genpurpose5 = 2,           ///< General Purpose Controller 5 (Button, MIDI Controller 80)
167          vcf_res_ctrl_genpurpose6 = 3            ///< General Purpose Controller 6 (Button, MIDI Controller 81)          vcf_res_ctrl_genpurpose6 = 3            ///< General Purpose Controller 6 (Button, MIDI Controller 81)
168      } vcf_res_ctrl_t;      } vcf_res_ctrl_t;
169        
170      /**      /**
171       * Defines a controller that has a certain contrained influence on a       * Defines a controller that has a certain contrained influence on a
172       * particular synthesis parameter (used to define attenuation controller,       * particular synthesis parameter (used to define attenuation controller,
# Line 183  namespace gig { Line 182  namespace gig {
182              type_velocity          = 0xff, ///< Key Velocity              type_velocity          = 0xff, ///< Key Velocity
183              type_controlchange     = 0xfe  ///< Ordinary MIDI control change controller, see field 'controller_number'              type_controlchange     = 0xfe  ///< Ordinary MIDI control change controller, see field 'controller_number'
184          } type_t;          } type_t;
185            
186          type_t type;              ///< Controller type          type_t type;              ///< Controller type
187          uint   controller_number; ///< MIDI controller number if this controller is a control change controller, 0 otherwise          uint   controller_number; ///< MIDI controller number if this controller is a control change controller, 0 otherwise
188      };      };
189        
190      /**      /**
191       * Defines controller influencing attenuation.       * Defines controller influencing attenuation.
192       *       *
193       * @see leverage_ctrl_t       * @see leverage_ctrl_t
194       */       */
195      typedef leverage_ctrl_t attenuation_ctrl_t;      typedef leverage_ctrl_t attenuation_ctrl_t;
196        
197      /**      /**
198       * Defines controller influencing envelope generator 1.       * Defines controller influencing envelope generator 1.
199       *       *
200       * @see leverage_ctrl_t       * @see leverage_ctrl_t
201       */       */
202      typedef leverage_ctrl_t eg1_ctrl_t;      typedef leverage_ctrl_t eg1_ctrl_t;
203        
204      /**      /**
205       * Defines controller influencing envelope generator 2.       * Defines controller influencing envelope generator 2.
206       *       *
# Line 382  namespace gig { Line 381  namespace gig {
381              bool               VCFKeyboardTracking;           ///< If <i>true</i>: VCF cutoff frequence will be dependend to the note key position relative to the defined breakpoint value.              bool               VCFKeyboardTracking;           ///< If <i>true</i>: VCF cutoff frequence will be dependend to the note key position relative to the defined breakpoint value.
382              uint8_t            VCFKeyboardTrackingBreakpoint; ///< See VCFKeyboardTracking (0 - 127).              uint8_t            VCFKeyboardTrackingBreakpoint; ///< See VCFKeyboardTracking (0 - 127).
383              // Key Velocity Transformations              // Key Velocity Transformations
384              curve_type_t       VelocityResponseCurve;         ///< Defines a transformation curve to the incoming velocity values affecting amplitude.              curve_type_t       VelocityResponseCurve;         ///< Defines a transformation curve to the incoming velocity values affecting amplitude (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead).
385              uint8_t            VelocityResponseDepth;         ///< Dynamic range of velocity affecting amplitude (0 - 4).              uint8_t            VelocityResponseDepth;         ///< Dynamic range of velocity affecting amplitude (0 - 4) (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead).
386              uint8_t            VelocityResponseCurveScaling;  ///< 0 - 127              uint8_t            VelocityResponseCurveScaling;  ///< 0 - 127 (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead)
387              curve_type_t       ReleaseVelocityResponseCurve;  ///< Defines a transformation curve to the incoming release veloctiy values affecting envelope times.              curve_type_t       ReleaseVelocityResponseCurve;  ///< Defines a transformation curve to the incoming release veloctiy values affecting envelope times.
388              uint8_t            ReleaseVelocityResponseDepth;  ///< Dynamic range of release velocity affecting envelope time (0 - 4).              uint8_t            ReleaseVelocityResponseDepth;  ///< Dynamic range of release velocity affecting envelope time (0 - 4).
389              uint8_t            ReleaseTriggerDecay;           ///< 0 - 8              uint8_t            ReleaseTriggerDecay;           ///< 0 - 8
# Line 442  namespace gig { Line 441  namespace gig {
441                  _lev_ctrl_effect5depth      = 0x2d, ///< Effect 5 Depth (MIDI Controller 95)                  _lev_ctrl_effect5depth      = 0x2d, ///< Effect 5 Depth (MIDI Controller 95)
442                  _lev_ctrl_channelaftertouch = 0x2f, ///< Channel Key Pressure                  _lev_ctrl_channelaftertouch = 0x2f, ///< Channel Key Pressure
443                  _lev_ctrl_velocity          = 0xff  ///< Key Velocity                  _lev_ctrl_velocity          = 0xff  ///< Key Velocity
444              } _lev_ctrl_t;                      } _lev_ctrl_t;
445              typedef std::map<uint32_t, double*> VelocityTableMap;              typedef std::map<uint32_t, double*> VelocityTableMap;
446    
447              static uint              Instances;                  ///< Number of DimensionRegion instances.              static uint              Instances;                  ///< Number of DimensionRegion instances.
448              static VelocityTableMap* pVelocityTables;            ///< Contains the tables corresponding to the various velocity parameters (VelocityResponseCurve and VelocityResponseDepth).              static VelocityTableMap* pVelocityTables;            ///< Contains the tables corresponding to the various velocity parameters (VelocityResponseCurve and VelocityResponseDepth).
449              double*                  pVelocityAttenuationTable;  ///< Points to the velocity table corresponding to the velocity parameters of this DimensionRegion.              double*                  pVelocityAttenuationTable;  ///< Points to the velocity table corresponding to the velocity parameters of this DimensionRegion.
450                
451              leverage_ctrl_t DecodeLeverageController(_lev_ctrl_t EncodedController);              leverage_ctrl_t DecodeLeverageController(_lev_ctrl_t EncodedController);
452      };      };
453    
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