/[svn]/libgig/trunk/src/gig.h
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revision 1199 by persson, Sun May 20 10:11:39 2007 UTC revision 3323 by schoenebeck, Thu Jul 20 22:09:54 2017 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   libgig - C++ cross-platform Gigasampler format file access library    *   *   libgig - C++ cross-platform Gigasampler format file access library    *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003-2007 by Christian Schoenebeck                      *   *   Copyright (C) 2003-2017 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  *
# Line 25  Line 25 
25  #define __GIG_H__  #define __GIG_H__
26    
27  #include "DLS.h"  #include "DLS.h"
28    #include <vector>
29    
30    #ifndef __has_feature
31    # define __has_feature(x) 0
32    #endif
33    #ifndef HAVE_RTTI
34    # if __GXX_RTTI || __has_feature(cxx_rtti) || _CPPRTTI
35    #  define HAVE_RTTI 1
36    # else
37    #  define HAVE_RTTI 0
38    # endif
39    #endif
40    #if HAVE_RTTI
41    # include <typeinfo>
42    #else
43    # warning No RTTI available!
44    #endif
45    
46  #if WORDS_BIGENDIAN  #if WORDS_BIGENDIAN
47  # define LIST_TYPE_3PRG 0x33707267  # define LIST_TYPE_3PRG 0x33707267
48  # define LIST_TYPE_3EWL 0x3365776C  # define LIST_TYPE_3EWL 0x3365776C
49  # define LIST_TYPE_3GRI 0x33677269  # define LIST_TYPE_3GRI 0x33677269
50  # define LIST_TYPE_3GNL 0x33676E6C  # define LIST_TYPE_3GNL 0x33676E6C
51  # define CHUNK_ID_SMPL  0x736D706C  # define LIST_TYPE_3LS  0x334c5320 // own gig format extension
52    # define LIST_TYPE_RTIS 0x52544953 // own gig format extension
53  # define CHUNK_ID_3GIX  0x33676978  # define CHUNK_ID_3GIX  0x33676978
54  # define CHUNK_ID_3EWA  0x33657761  # define CHUNK_ID_3EWA  0x33657761
55  # define CHUNK_ID_3LNK  0x336C6E6B  # define CHUNK_ID_3LNK  0x336C6E6B
# Line 40  Line 58 
58  # define CHUNK_ID_3GNM  0x33676E6D  # define CHUNK_ID_3GNM  0x33676E6D
59  # define CHUNK_ID_EINF  0x65696E66  # define CHUNK_ID_EINF  0x65696E66
60  # define CHUNK_ID_3CRC  0x33637263  # define CHUNK_ID_3CRC  0x33637263
61    # define CHUNK_ID_SCRI  0x53637269 // own gig format extension
62    # define CHUNK_ID_LSNM  0x4c534e4d // own gig format extension
63    # define CHUNK_ID_SCSL  0x5343534c // own gig format extension
64    # define CHUNK_ID_LSDE  0x4c534445 // own gig format extension
65  #else  // little endian  #else  // little endian
66  # define LIST_TYPE_3PRG 0x67727033  # define LIST_TYPE_3PRG 0x67727033
67  # define LIST_TYPE_3EWL 0x6C776533  # define LIST_TYPE_3EWL 0x6C776533
68  # define LIST_TYPE_3GRI 0x69726733  # define LIST_TYPE_3GRI 0x69726733
69  # define LIST_TYPE_3GNL 0x6C6E6733  # define LIST_TYPE_3GNL 0x6C6E6733
70  # define CHUNK_ID_SMPL  0x6C706D73  # define LIST_TYPE_3LS  0x20534c33 // own gig format extension
71    # define LIST_TYPE_RTIS 0x53495452 // own gig format extension
72  # define CHUNK_ID_3GIX  0x78696733  # define CHUNK_ID_3GIX  0x78696733
73  # define CHUNK_ID_3EWA  0x61776533  # define CHUNK_ID_3EWA  0x61776533
74  # define CHUNK_ID_3LNK  0x6B6E6C33  # define CHUNK_ID_3LNK  0x6B6E6C33
# Line 54  Line 77 
77  # define CHUNK_ID_3GNM  0x6D6E6733  # define CHUNK_ID_3GNM  0x6D6E6733
78  # define CHUNK_ID_EINF  0x666E6965  # define CHUNK_ID_EINF  0x666E6965
79  # define CHUNK_ID_3CRC  0x63726333  # define CHUNK_ID_3CRC  0x63726333
80    # define CHUNK_ID_SCRI  0x69726353 // own gig format extension
81    # define CHUNK_ID_LSNM  0x4d4e534c // own gig format extension
82    # define CHUNK_ID_SCSL  0x4c534353 // own gig format extension
83    # define CHUNK_ID_LSDE  0x4544534c // own gig format extension
84  #endif // WORDS_BIGENDIAN  #endif // WORDS_BIGENDIAN
85    
86  /** Gigasampler specific classes and definitions */  #ifndef GIG_DECLARE_ENUM
87    # define GIG_DECLARE_ENUM(type, ...) enum type { __VA_ARGS__ }
88    #endif
89    
90    // just symbol prototyping (since Serialization.h not included by default here)
91    namespace Serialization { class Archive; }
92    
93    /** Gigasampler/GigaStudio specific classes and definitions */
94  namespace gig {  namespace gig {
95    
96      typedef std::string String;      typedef std::string String;
97        typedef RIFF::progress_t progress_t;
98        typedef RIFF::file_offset_t file_offset_t;
99    
100      /** Lower and upper limit of a range. */      /** Lower and upper limit of a range. */
101      struct range_t {      struct range_t {
# Line 70  namespace gig { Line 106  namespace gig {
106      /** Pointer address and size of a buffer. */      /** Pointer address and size of a buffer. */
107      struct buffer_t {      struct buffer_t {
108          void*         pStart;            ///< Points to the beginning of the buffer.          void*         pStart;            ///< Points to the beginning of the buffer.
109          unsigned long Size;              ///< Size of the actual data in the buffer in bytes.          file_offset_t Size;              ///< Size of the actual data in the buffer in bytes.
110          unsigned long NullExtensionSize; ///< The buffer might be bigger than the actual data, if that's the case that unused space at the end of the buffer is filled with NULLs and NullExtensionSize reflects that unused buffer space in bytes. Those NULL extensions are mandatory for differential algorithms that have to take the following data words into account, thus have to access past the buffer's boundary. If you don't know what I'm talking about, just forget this variable. :)          file_offset_t NullExtensionSize; ///< The buffer might be bigger than the actual data, if that's the case that unused space at the end of the buffer is filled with NULLs and NullExtensionSize reflects that unused buffer space in bytes. Those NULL extensions are mandatory for differential algorithms that have to take the following data words into account, thus have to access past the buffer's boundary. If you don't know what I'm talking about, just forget this variable. :)
111          buffer_t() {          buffer_t() {
112              pStart            = NULL;              pStart            = NULL;
113              Size              = 0;              Size              = 0;
# Line 79  namespace gig { Line 115  namespace gig {
115          }          }
116      };      };
117    
118      /** Standard types of sample loops. */      /** Standard types of sample loops.
119      typedef enum {       *
120         * @see enumCount(), enumKey(), enumKeys(), enumValue()
121         */
122        GIG_DECLARE_ENUM(loop_type_t,
123          loop_type_normal        = 0x00000000,  ///< Loop forward (normal)          loop_type_normal        = 0x00000000,  ///< Loop forward (normal)
124          loop_type_bidirectional = 0x00000001,  ///< Alternating loop (forward/backward, also known as Ping Pong)          loop_type_bidirectional = 0x00000001,  ///< Alternating loop (forward/backward, also known as Ping Pong)
125          loop_type_backward      = 0x00000002   ///< Loop backward (reverse)          loop_type_backward      = 0x00000002   ///< Loop backward (reverse)
126      } loop_type_t;      );
127    
128      /** Society of Motion Pictures and Television E time format. */      /** Society of Motion Pictures and Television E time format.
129      typedef enum {       *
130         * @see enumCount(), enumKey(), enumKeys(), enumValue()
131         */
132        GIG_DECLARE_ENUM(smpte_format_t,
133          smpte_format_no_offset          = 0x00000000,  ///< no SMPTE offset          smpte_format_no_offset          = 0x00000000,  ///< no SMPTE offset
134          smpte_format_24_frames          = 0x00000018,  ///< 24 frames per second          smpte_format_24_frames          = 0x00000018,  ///< 24 frames per second
135          smpte_format_25_frames          = 0x00000019,  ///< 25 frames per second          smpte_format_25_frames          = 0x00000019,  ///< 25 frames per second
136          smpte_format_30_frames_dropping = 0x0000001D,  ///< 30 frames per second with frame dropping (30 drop)          smpte_format_30_frames_dropping = 0x0000001D,  ///< 30 frames per second with frame dropping (30 drop)
137          smpte_format_30_frames          = 0x0000001E   ///< 30 frames per second          smpte_format_30_frames          = 0x0000001E   ///< 30 frames per second
138      } smpte_format_t;      );
139    
140      /** Defines the shape of a function graph. */      /** Defines the shape of a function graph.
141      typedef enum {       *
142         * @see enumCount(), enumKey(), enumKeys(), enumValue()
143         */
144        GIG_DECLARE_ENUM(curve_type_t,
145          curve_type_nonlinear = 0,          curve_type_nonlinear = 0,
146          curve_type_linear    = 1,          curve_type_linear    = 1,
147          curve_type_special   = 2,          curve_type_special   = 2,
148          curve_type_unknown   = 0xffffffff          curve_type_unknown   = 0xffffffff
149      } curve_type_t;      );
150    
151      /** Dimensions allow to bypass one of the following controllers. */      /** Dimensions allow to bypass one of the following controllers.
152      typedef enum {       *
153         * @see enumCount(), enumKey(), enumKeys(), enumValue()
154         */
155        GIG_DECLARE_ENUM(dim_bypass_ctrl_t,
156          dim_bypass_ctrl_none,          dim_bypass_ctrl_none,
157          dim_bypass_ctrl_94,   ///< Effect 4 Depth (MIDI Controller 94)          dim_bypass_ctrl_94,   ///< Effect 4 Depth (MIDI Controller 94)
158          dim_bypass_ctrl_95    ///< Effect 5 Depth (MIDI Controller 95)          dim_bypass_ctrl_95    ///< Effect 5 Depth (MIDI Controller 95)
159      } dim_bypass_ctrl_t;      );
160    
161      /** Defines how LFO3 is controlled by. */      /** Defines how LFO3 is controlled by.
162      typedef enum {       *
163         * @see enumCount(), enumKey(), enumKeys(), enumValue()
164         */
165        GIG_DECLARE_ENUM(lfo3_ctrl_t,
166          lfo3_ctrl_internal            = 0x00, ///< Only internally controlled.          lfo3_ctrl_internal            = 0x00, ///< Only internally controlled.
167          lfo3_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.          lfo3_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.
168          lfo3_ctrl_aftertouch          = 0x02, ///< Only controlled by aftertouch controller.          lfo3_ctrl_aftertouch          = 0x02, ///< Only controlled by aftertouch controller.
169          lfo3_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.          lfo3_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.
170          lfo3_ctrl_internal_aftertouch = 0x04  ///< Controlled internally and by aftertouch controller.          lfo3_ctrl_internal_aftertouch = 0x04  ///< Controlled internally and by aftertouch controller.
171      } lfo3_ctrl_t;      );
172    
173      /** Defines how LFO2 is controlled by. */      /** Defines how LFO2 is controlled by.
174      typedef enum {       *
175         * @see enumCount(), enumKey(), enumKeys(), enumValue()
176         */
177        GIG_DECLARE_ENUM(lfo2_ctrl_t,
178          lfo2_ctrl_internal            = 0x00, ///< Only internally controlled.          lfo2_ctrl_internal            = 0x00, ///< Only internally controlled.
179          lfo2_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.          lfo2_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.
180          lfo2_ctrl_foot                = 0x02, ///< Only controlled by external foot controller.          lfo2_ctrl_foot                = 0x02, ///< Only controlled by external foot controller.
181          lfo2_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.          lfo2_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.
182          lfo2_ctrl_internal_foot       = 0x04  ///< Controlled internally and by external foot controller.          lfo2_ctrl_internal_foot       = 0x04  ///< Controlled internally and by external foot controller.
183      } lfo2_ctrl_t;      );
184    
185      /** Defines how LFO1 is controlled by. */      /** Defines how LFO1 is controlled by.
186      typedef enum {       *
187         * @see enumCount(), enumKey(), enumKeys(), enumValue()
188         */
189        GIG_DECLARE_ENUM(lfo1_ctrl_t,
190          lfo1_ctrl_internal            = 0x00, ///< Only internally controlled.          lfo1_ctrl_internal            = 0x00, ///< Only internally controlled.
191          lfo1_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.          lfo1_ctrl_modwheel            = 0x01, ///< Only controlled by external modulation wheel.
192          lfo1_ctrl_breath              = 0x02, ///< Only controlled by external breath controller.          lfo1_ctrl_breath              = 0x02, ///< Only controlled by external breath controller.
193          lfo1_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.          lfo1_ctrl_internal_modwheel   = 0x03, ///< Controlled internally and by external modulation wheel.
194          lfo1_ctrl_internal_breath     = 0x04  ///< Controlled internally and by external breath controller.          lfo1_ctrl_internal_breath     = 0x04  ///< Controlled internally and by external breath controller.
195      } lfo1_ctrl_t;      );
196    
197      /** Defines how the filter cutoff frequency is controlled by. */      /** Defines how the filter cutoff frequency is controlled by.
198      typedef enum {       *
199         * @see enumCount(), enumKey(), enumKeys(), enumValue()
200         */
201        GIG_DECLARE_ENUM(vcf_cutoff_ctrl_t,
202          vcf_cutoff_ctrl_none         = 0x00,          vcf_cutoff_ctrl_none         = 0x00,
203          vcf_cutoff_ctrl_none2        = 0x01,  ///< The difference between none and none2 is unknown          vcf_cutoff_ctrl_none2        = 0x01,  ///< The difference between none and none2 is unknown
204          vcf_cutoff_ctrl_modwheel     = 0x81,  ///< Modulation Wheel (MIDI Controller 1)          vcf_cutoff_ctrl_modwheel     = 0x81,  ///< Modulation Wheel (MIDI Controller 1)
# Line 151  namespace gig { Line 211  namespace gig {
211          vcf_cutoff_ctrl_genpurpose7  = 0xd2,  ///< General Purpose Controller 7 (Button, MIDI Controller 82)          vcf_cutoff_ctrl_genpurpose7  = 0xd2,  ///< General Purpose Controller 7 (Button, MIDI Controller 82)
212          vcf_cutoff_ctrl_genpurpose8  = 0xd3,  ///< General Purpose Controller 8 (Button, MIDI Controller 83)          vcf_cutoff_ctrl_genpurpose8  = 0xd3,  ///< General Purpose Controller 8 (Button, MIDI Controller 83)
213          vcf_cutoff_ctrl_aftertouch   = 0x80   ///< Key Pressure          vcf_cutoff_ctrl_aftertouch   = 0x80   ///< Key Pressure
214      } vcf_cutoff_ctrl_t;      );
215    
216      /** Defines how the filter resonance is controlled by. */      /** Defines how the filter resonance is controlled by.
217      typedef enum {       *
218         * @see enumCount(), enumKey(), enumKeys(), enumValue()
219         */
220        GIG_DECLARE_ENUM(vcf_res_ctrl_t,
221          vcf_res_ctrl_none        = 0xffffffff,          vcf_res_ctrl_none        = 0xffffffff,
222          vcf_res_ctrl_genpurpose3 = 0,           ///< General Purpose Controller 3 (Slider, MIDI Controller 18)          vcf_res_ctrl_genpurpose3 = 0,           ///< General Purpose Controller 3 (Slider, MIDI Controller 18)
223          vcf_res_ctrl_genpurpose4 = 1,           ///< General Purpose Controller 4 (Slider, MIDI Controller 19)          vcf_res_ctrl_genpurpose4 = 1,           ///< General Purpose Controller 4 (Slider, MIDI Controller 19)
224          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)
225          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)
226      } vcf_res_ctrl_t;      );
227    
228      /**      /**
229       * Defines a controller that has a certain contrained influence on a       * Defines a controller that has a certain contrained influence on a
# Line 171  namespace gig { Line 234  namespace gig {
234       * attenuation_ctrl_t, eg1_ctrl_t or eg2_ctrl_t) in your code!       * attenuation_ctrl_t, eg1_ctrl_t or eg2_ctrl_t) in your code!
235       */       */
236      struct leverage_ctrl_t {      struct leverage_ctrl_t {
237          typedef enum {          /** Defines possible controllers.
238             *
239             * @see enumCount(), enumKey(), enumKeys(), enumValue()
240             */
241            GIG_DECLARE_ENUM(type_t,
242              type_none              = 0x00, ///< No controller defined              type_none              = 0x00, ///< No controller defined
243              type_channelaftertouch = 0x2f, ///< Channel Key Pressure              type_channelaftertouch = 0x2f, ///< Channel Key Pressure
244              type_velocity          = 0xff, ///< Key Velocity              type_velocity          = 0xff, ///< Key Velocity
245              type_controlchange     = 0xfe  ///< Ordinary MIDI control change controller, see field 'controller_number'              type_controlchange     = 0xfe  ///< Ordinary MIDI control change controller, see field 'controller_number'
246          } type_t;          );
247    
248          type_t type;              ///< Controller type          type_t type;              ///< Controller type
249          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
250    
251            void serialize(Serialization::Archive* archive);
252      };      };
253    
254      /**      /**
# Line 209  namespace gig { Line 278  namespace gig {
278       * dimension zones is always a power of two. All dimensions can have up       * dimension zones is always a power of two. All dimensions can have up
279       * to 32 zones (except the layer dimension with only up to 8 zones and       * to 32 zones (except the layer dimension with only up to 8 zones and
280       * the samplechannel dimension which currently allows only 2 zones).       * the samplechannel dimension which currently allows only 2 zones).
281         *
282         * @see enumCount(), enumKey(), enumKeys(), enumValue()
283       */       */
284      typedef enum {      GIG_DECLARE_ENUM(dimension_t,
285          dimension_none              = 0x00, ///< Dimension not in use.          dimension_none              = 0x00, ///< Dimension not in use.
286          dimension_samplechannel     = 0x80, ///< If used sample has more than one channel (thus is not mono).          dimension_samplechannel     = 0x80, ///< If used sample has more than one channel (thus is not mono).
287          dimension_layer             = 0x81, ///< For layering of up to 8 instruments (and eventually crossfading of 2 or 4 layers).          dimension_layer             = 0x81, ///< For layering of up to 8 instruments (and eventually crossfading of 2 or 4 layers).
# Line 245  namespace gig { Line 316  namespace gig {
316          dimension_effect3depth      = 0x5d, ///< Effect 3 Depth (MIDI Controller 93)          dimension_effect3depth      = 0x5d, ///< Effect 3 Depth (MIDI Controller 93)
317          dimension_effect4depth      = 0x5e, ///< Effect 4 Depth (MIDI Controller 94)          dimension_effect4depth      = 0x5e, ///< Effect 4 Depth (MIDI Controller 94)
318          dimension_effect5depth      = 0x5f  ///< Effect 5 Depth (MIDI Controller 95)          dimension_effect5depth      = 0x5f  ///< Effect 5 Depth (MIDI Controller 95)
319      } dimension_t;      );
320    
321      /**      /**
322       * Intended for internal usage: will be used to convert a dimension value       * Intended for internal usage: will be used to convert a dimension value
323       * into the corresponding dimension bit number.       * into the corresponding dimension bit number.
324         *
325         * @see enumCount(), enumKey(), enumKeys(), enumValue()
326       */       */
327      typedef enum {      GIG_DECLARE_ENUM(split_type_t,
328          split_type_normal,         ///< dimension value between 0-127          split_type_normal,         ///< dimension value between 0-127
329          split_type_bit             ///< dimension values are already the sought bit number          split_type_bit             ///< dimension values are already the sought bit number
330      } split_type_t;      );
331    
332      /** General dimension definition. */      /** General dimension definition. */
333      struct dimension_def_t {      struct dimension_def_t {
# Line 265  namespace gig { Line 338  namespace gig {
338          float        zone_size;  ///< Intended for internal usage: reflects the size of each zone (128/zones) for normal split types only, 0 otherwise.          float        zone_size;  ///< Intended for internal usage: reflects the size of each zone (128/zones) for normal split types only, 0 otherwise.
339      };      };
340    
341      /** Defines which frequencies are filtered by the VCF. */      /** Defines which frequencies are filtered by the VCF.
342      typedef enum {       *
343         * @see enumCount(), enumKey(), enumKeys(), enumValue()
344         */
345        GIG_DECLARE_ENUM(vcf_type_t,
346          vcf_type_lowpass      = 0x00,          vcf_type_lowpass      = 0x00,
347          vcf_type_lowpassturbo = 0xff, ///< More poles than normal lowpass          vcf_type_lowpassturbo = 0xff, ///< More poles than normal lowpass
348          vcf_type_bandpass     = 0x01,          vcf_type_bandpass     = 0x01,
349          vcf_type_highpass     = 0x02,          vcf_type_highpass     = 0x02,
350          vcf_type_bandreject   = 0x03          vcf_type_bandreject   = 0x03
351      } vcf_type_t;      );
352    
353      /**      /**
354       * Defines the envelope of a crossfade.       * Defines the envelope of a crossfade.
# Line 293  namespace gig { Line 369  namespace gig {
369          uint8_t out_start;  ///< Start position of fade out.          uint8_t out_start;  ///< Start position of fade out.
370          uint8_t out_end;    ///< End postition of fade out.          uint8_t out_end;    ///< End postition of fade out.
371          #endif // WORDS_BIGENDIAN          #endif // WORDS_BIGENDIAN
372    
373            void serialize(Serialization::Archive* archive);
374      };      };
375    
376      /** Reflects the current playback state for a sample. */      /** Reflects the current playback state for a sample. */
377      struct playback_state_t {      struct playback_state_t {
378          unsigned long position;          ///< Current position within the sample.          file_offset_t position;          ///< Current position within the sample.
379          bool          reverse;           ///< If playback direction is currently backwards (in case there is a pingpong or reverse loop defined).          bool          reverse;           ///< If playback direction is currently backwards (in case there is a pingpong or reverse loop defined).
380          unsigned long loop_cycles_left;  ///< How many times the loop has still to be passed, this value will be decremented with each loop cycle.          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.
381      };      };
382    
383      /**      /**
384       * @brief Used for indicating the progress of a certain task.       * Defines behavior options for envelope generators.
385       *       *
386       * The function pointer argument has to be supplied with a valid       * These options allow to override the precise default behavior of the
387       * function of the given signature which will then be called on       * envelope generators' state machines.
388       * progress changes. An equivalent progress_t structure will be passed       *
389       * back as argument to the callback function on each progress change.       * @b Note: These EG options are an extension to the original gig file
390       * The factor field of the supplied progress_t structure will then       * format, so these options are not available with the original
391       * reflect the current progress as value between 0.0 and 1.0. You might       * Gigasampler/GigaStudio software! Currently only LinuxSampler and gigedit
392       * want to use the custom field for data needed in your callback       * support these EG options!
393       * function.       *
394       */       * Adding these options to the original gig file format was necessary,
395      struct progress_t {       * because the precise state machine behavior of envelope generators of the
396          void (*callback)(progress_t*); ///< Callback function pointer which has to be assigned to a function for progress notification.       * gig format (and thus the default EG behavior if not explicitly overridden
397          float factor;                  ///< Reflects current progress as value between 0.0 and 1.0.       * here) deviates from common, expected behavior of envelope generators in
398          void* custom;                  ///< This pointer can be used for arbitrary data.       * general, if i.e. compared with EGs of hardware synthesizers. For example
399          float __range_min;             ///< Only for internal usage, do not modify!       * with the gig format, the attack and decay stages will be aborted as soon
400          float __range_max;             ///< Only for internal usage, do not modify!       * as a note-off is received. Most other EG implementations in the industry
401          progress_t();       * however always run the attack and decay stages to their full duration,
402      };       * even if an early note-off arrives. The latter behavior is intentionally
403         * implemented in most other products, because it is required to resemble
404      class CRC {       * percussive sounds in a realistic manner.
405      private:       */
406          uint32_t value;      struct eg_opt_t {
407          static const uint32_t* table;          bool AttackCancel;     ///< Whether the "attack" stage is cancelled when receiving a note-off (default: @c true).
408          static uint32_t* initTable();          bool AttackHoldCancel; ///< Whether the "attack hold" stage is cancelled when receiving a note-off (default: @c true).
409      public:          bool DecayCancel;      ///< Whether the "decay" stage is cancelled when receiving a note-off (default: @c true).
410          CRC() {          bool ReleaseCancel;    ///< Whether the "release" stage is cancelled when receiving a note-on (default: @c true).
411              reset();  
412          }          eg_opt_t();
413          void reset() {          void serialize(Serialization::Archive* archive);
             value = 0xffffffff;  
         }  
         void update(unsigned char* buf, int len) {  
             for (int i = 0 ; i < len ; i++) {  
                 value = table[(value ^ buf[i]) & 0xff] ^ (value >> 8);  
             }  
         }  
         uint32_t getValue() {  
             return value ^ 0xffffffff;  
         }  
414      };      };
415    
416      // just symbol prototyping      // just symbol prototyping
# Line 351  namespace gig { Line 419  namespace gig {
419      class Sample;      class Sample;
420      class Region;      class Region;
421      class Group;      class Group;
422        class Script;
423        class ScriptGroup;
424    
425      /** @brief Encapsulates articulation information of a dimension region.      /** @brief Encapsulates articulation informations of a dimension region.
426         *
427         * This is the most important data object of the Gigasampler / GigaStudio
428         * format. A DimensionRegion provides the link to the sample to be played
429         * and all required articulation informations to be interpreted for playing
430         * back the sample and processing it appropriately by the sampler software.
431         * Every Region of a Gigasampler Instrument has at least one dimension
432         * region (exactly then when the Region has no dimension defined). Many
433         * Regions though provide more than one DimensionRegion, which reflect
434         * different playing "cases". For example a different sample might be played
435         * if a certain pedal is pressed down, or if the note was triggered with
436         * different velocity.
437         *
438         * One instance of a DimensionRegion reflects exactly one particular case
439         * while playing an instrument (for instance "note between C3 and E3 was
440         * triggered AND note on velocity was between 20 and 42 AND modulation wheel
441         * controller is between 80 and 127). The DimensionRegion defines what to do
442         * under that one particular case, that is which sample to play back and how
443         * to play that sample back exactly and how to process it. So a
444         * DimensionRegion object is always linked to exactly one sample. It may
445         * however also link to no sample at all, for defining a "silence" case
446         * where nothing shall be played (for example when note on velocity was
447         * below 6).
448       *       *
449       *  Every Gigasampler Instrument has at least one dimension region       * Note that a DimensionRegion object only defines "what to do", but it does
450       *  (exactly then when it has no dimension defined).       * not define "when to do it". To actually resolve which DimensionRegion to
451         * pick under which situation, you need to refer to the DimensionRegions'
452         * parent Region object. The Region object contains the necessary
453         * "Dimension" definitions, which in turn define which DimensionRegion is
454         * associated with which playing case exactly.
455       *       *
456       *  Gigasampler provides three Envelope Generators and Low Frequency       * The Gigasampler/GigaStudio format defines 3 Envelope Generators and 3
457       *  Oscillators:       * Low Frequency Oscillators:
458       *       *
459       *  - EG1 and LFO1, both controlling sample amplitude       *  - EG1 and LFO1, both controlling sample amplitude
460       *  - EG2 and LFO2, both controlling filter cutoff frequency       *  - EG2 and LFO2, both controlling filter cutoff frequency
461       *  - EG3 and LFO3, both controlling sample pitch       *  - EG3 and LFO3, both controlling sample pitch
462         *
463         * Since the gig format was designed as extension to the DLS file format,
464         * this class is derived from the DLS::Sampler class. So also refer to
465         * DLS::Sampler for additional informations, class attributes and methods.
466       */       */
467      class DimensionRegion : protected DLS::Sampler {      class DimensionRegion : protected DLS::Sampler {
468          public:          public:
469              uint8_t            VelocityUpperLimit;            ///< Defines the upper velocity value limit of a velocity split (only if an user defined limit was set, thus a value not equal to 128/NumberOfSplits, else this value is 0). Only for gig2, otherwise the DimensionUpperLimts are used instead.              uint8_t            VelocityUpperLimit;            ///< Defines the upper velocity value limit of a velocity split (only if an user defined limit was set, thus a value not equal to 128/NumberOfSplits, else this value is 0). Only for gig2, for gig3 and above the DimensionUpperLimits are used instead.
470              Sample*            pSample;                       ///< Points to the Sample which is assigned to the dimension region.              Sample*            pSample;                       ///< Points to the Sample which is assigned to the dimension region.
471              // Sample Amplitude EG/LFO              // Sample Amplitude EG/LFO
472              uint16_t           EG1PreAttack;                  ///< Preattack value of the sample amplitude EG (0 - 1000 permille).              uint16_t           EG1PreAttack;                  ///< Preattack value of the sample amplitude EG (0 - 1000 permille).
# Line 418  namespace gig { Line 518  namespace gig {
518              // Filter              // Filter
519              bool               VCFEnabled;                    ///< If filter should be used.              bool               VCFEnabled;                    ///< If filter should be used.
520              vcf_type_t         VCFType;                       ///< Defines the general filter characteristic (lowpass, highpass, bandpass, etc.).              vcf_type_t         VCFType;                       ///< Defines the general filter characteristic (lowpass, highpass, bandpass, etc.).
521              vcf_cutoff_ctrl_t  VCFCutoffController;           ///< Specifies which external controller has influence on the filter cutoff frequency.              vcf_cutoff_ctrl_t  VCFCutoffController;           ///< Specifies which external controller has influence on the filter cutoff frequency. @deprecated Don't alter directly, use SetVCFCutoffController() instead!
522              bool               VCFCutoffControllerInvert;     ///< Inverts values coming from the defined cutoff controller              bool               VCFCutoffControllerInvert;     ///< Inverts values coming from the defined cutoff controller
523              uint8_t            VCFCutoff;                     ///< Max. cutoff frequency.              uint8_t            VCFCutoff;                     ///< Max. cutoff frequency.
524              curve_type_t       VCFVelocityCurve;              ///< Defines a transformation curve for the incoming velocity values, affecting the VCF.              curve_type_t       VCFVelocityCurve;              ///< Defines a transformation curve for the incoming velocity values, affecting the VCF. @deprecated Don't alter directly, use SetVCFVelocityCurve() instead!
525              uint8_t            VCFVelocityScale;              ///< (0-127) Amount velocity controls VCF cutoff frequency (only if no other VCF cutoff controller is defined, otherwise this is the minimum cutoff).              uint8_t            VCFVelocityScale;              ///< (0-127) Amount velocity controls VCF cutoff frequency (only if no other VCF cutoff controller is defined, otherwise this is the minimum cutoff). @deprecated Don't alter directly, use SetVCFVelocityScale() instead!
526              uint8_t            VCFVelocityDynamicRange;       ///< 0x04 = lowest, 0x00 = highest              uint8_t            VCFVelocityDynamicRange;       ///< 0x04 = lowest, 0x00 = highest . @deprecated Don't alter directly, use SetVCFVelocityDynamicRange() instead!
527              uint8_t            VCFResonance;                  ///< Firm internal filter resonance weight.              uint8_t            VCFResonance;                  ///< Firm internal filter resonance weight.
528              bool               VCFResonanceDynamic;           ///< If <i>true</i>: Increases the resonance Q according to changes of controllers that actually control the VCF cutoff frequency (EG2, ext. VCF MIDI controller).              bool               VCFResonanceDynamic;           ///< If <i>true</i>: Increases the resonance Q according to changes of controllers that actually control the VCF cutoff frequency (EG2, ext. VCF MIDI controller).
529              vcf_res_ctrl_t     VCFResonanceController;        ///< Specifies which external controller has influence on the filter resonance Q.              vcf_res_ctrl_t     VCFResonanceController;        ///< Specifies which external controller has influence on the filter resonance Q.
530              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.
531              uint8_t            VCFKeyboardTrackingBreakpoint; ///< See VCFKeyboardTracking (0 - 127).              uint8_t            VCFKeyboardTrackingBreakpoint; ///< See VCFKeyboardTracking (0 - 127).
532              // Key Velocity Transformations              // Key Velocity Transformations
533              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).              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). @deprecated Don't alter directly, use SetVelocityResponseCurve() instead!
534              uint8_t            VelocityResponseDepth;         ///< Dynamic range of velocity affecting amplitude (0 - 4) (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead).              uint8_t            VelocityResponseDepth;         ///< Dynamic range of velocity affecting amplitude (0 - 4) (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead). @deprecated Don't alter directly, use SetVelocityResponseDepth() instead!
535              uint8_t            VelocityResponseCurveScaling;  ///< 0 - 127 (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead)              uint8_t            VelocityResponseCurveScaling;  ///< 0 - 127 (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead). @deprecated Don't alter directly, use SetVelocityResponseCurveScaling() instead!
536              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. @deprecated Don't alter directly, use SetReleaseVelocityResponseCurve() instead!
537              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). @deprecated Don't alter directly, use SetReleaseVelocityResponseDepth() instead!
538              uint8_t            ReleaseTriggerDecay;           ///< 0 - 8              uint8_t            ReleaseTriggerDecay;           ///< 0 - 8
539              // Mix / Layer              // Mix / Layer
540              crossfade_t        Crossfade;              crossfade_t        Crossfade;
# Line 450  namespace gig { Line 550  namespace gig {
550              bool               MSDecode;                      ///< Gigastudio flag: defines if Mid Side Recordings should be decoded.              bool               MSDecode;                      ///< Gigastudio flag: defines if Mid Side Recordings should be decoded.
551              uint16_t           SampleStartOffset;             ///< Number of samples the sample start should be moved (0 - 2000).              uint16_t           SampleStartOffset;             ///< Number of samples the sample start should be moved (0 - 2000).
552              double             SampleAttenuation;             ///< Sample volume (calculated from DLS::Sampler::Gain)              double             SampleAttenuation;             ///< Sample volume (calculated from DLS::Sampler::Gain)
553              uint8_t            DimensionUpperLimits[8];       ///< gig3: defines the upper limit of the dimension values for this dimension region              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).
554                eg_opt_t           EGOptions;                     ///< [gig extension]: Behavior options which should be used for all 3 envelope generators.
555    
556              // derived attributes from DLS::Sampler              // derived attributes from DLS::Sampler
557              DLS::Sampler::UnityNote;              using DLS::Sampler::UnityNote;
558              DLS::Sampler::FineTune;              using DLS::Sampler::FineTune;
559              DLS::Sampler::Gain;              using DLS::Sampler::Gain;
560              DLS::Sampler::SampleLoops;              using DLS::Sampler::SampleLoops;
561              DLS::Sampler::pSampleLoops;              using DLS::Sampler::pSampleLoops;
562    
563              // own methods              // own methods
564              double GetVelocityAttenuation(uint8_t MIDIKeyVelocity);              double GetVelocityAttenuation(uint8_t MIDIKeyVelocity);
565              double GetVelocityRelease(uint8_t MIDIKeyVelocity);              double GetVelocityRelease(uint8_t MIDIKeyVelocity);
566              double GetVelocityCutoff(uint8_t MIDIKeyVelocity);              double GetVelocityCutoff(uint8_t MIDIKeyVelocity);
567                void SetVelocityResponseCurve(curve_type_t curve);
568                void SetVelocityResponseDepth(uint8_t depth);
569                void SetVelocityResponseCurveScaling(uint8_t scaling);
570                void SetReleaseVelocityResponseCurve(curve_type_t curve);
571                void SetReleaseVelocityResponseDepth(uint8_t depth);
572                void SetVCFCutoffController(vcf_cutoff_ctrl_t controller);
573                void SetVCFVelocityCurve(curve_type_t curve);
574                void SetVCFVelocityDynamicRange(uint8_t range);
575                void SetVCFVelocityScale(uint8_t scaling);
576                Region* GetParent() const;
577              // derived methods              // derived methods
578              DLS::Sampler::AddSampleLoop;              using DLS::Sampler::AddSampleLoop;
579              DLS::Sampler::DeleteSampleLoop;              using DLS::Sampler::DeleteSampleLoop;
580              // overridden methods              // overridden methods
581              virtual void UpdateChunks();              virtual void SetGain(int32_t gain);
582                virtual void UpdateChunks(progress_t* pProgress);
583                virtual void CopyAssign(const DimensionRegion* orig);
584          protected:          protected:
585              uint8_t* VelocityTable; ///< For velocity dimensions with custom defined zone ranges only: used for fast converting from velocity MIDI value to dimension bit number.              uint8_t* VelocityTable; ///< For velocity dimensions with custom defined zone ranges only: used for fast converting from velocity MIDI value to dimension bit number.
586              DimensionRegion(RIFF::List* _3ewl);              DimensionRegion(Region* pParent, RIFF::List* _3ewl);
587                DimensionRegion(RIFF::List* _3ewl, const DimensionRegion& src);
588             ~DimensionRegion();             ~DimensionRegion();
589                void CopyAssign(const DimensionRegion* orig, const std::map<Sample*,Sample*>* mSamples);
590                void serialize(Serialization::Archive* archive);
591              friend class Region;              friend class Region;
592                friend class Serialization::Archive;
593          private:          private:
594              typedef enum { ///< Used to decode attenuation, EG1 and EG2 controller              typedef enum { ///< Used to decode attenuation, EG1 and EG2 controller
595                    // official leverage controllers as they were defined in the original Gigasampler/GigaStudio format:
596                  _lev_ctrl_none              = 0x00,                  _lev_ctrl_none              = 0x00,
597                  _lev_ctrl_modwheel          = 0x03, ///< Modulation Wheel (MIDI Controller 1)                  _lev_ctrl_modwheel          = 0x03, ///< Modulation Wheel (MIDI Controller 1)
598                  _lev_ctrl_breath            = 0x05, ///< Breath Controller (Coarse, MIDI Controller 2)                  _lev_ctrl_breath            = 0x05, ///< Breath Controller (Coarse, MIDI Controller 2)
# Line 500  namespace gig { Line 618  namespace gig {
618                  _lev_ctrl_effect4depth      = 0x2b, ///< Effect 4 Depth (MIDI Controller 94)                  _lev_ctrl_effect4depth      = 0x2b, ///< Effect 4 Depth (MIDI Controller 94)
619                  _lev_ctrl_effect5depth      = 0x2d, ///< Effect 5 Depth (MIDI Controller 95)                  _lev_ctrl_effect5depth      = 0x2d, ///< Effect 5 Depth (MIDI Controller 95)
620                  _lev_ctrl_channelaftertouch = 0x2f, ///< Channel Key Pressure                  _lev_ctrl_channelaftertouch = 0x2f, ///< Channel Key Pressure
621                  _lev_ctrl_velocity          = 0xff  ///< Key Velocity                  _lev_ctrl_velocity          = 0xff, ///< Key Velocity
622    
623                    // format extension (these controllers are so far only supported by LinuxSampler & gigedit) they will *NOT* work with Gigasampler/GigaStudio !
624                    // (the assigned values here are their official MIDI CC number plus the highest bit set):
625                    _lev_ctrl_CC3_EXT           = 0x83, ///< MIDI Controller 3 [gig format extension]
626    
627                    _lev_ctrl_CC6_EXT           = 0x86, ///< Data Entry MSB (MIDI Controller 6) [gig format extension]
628                    _lev_ctrl_CC7_EXT           = 0x87, ///< Channel Volume (MIDI Controller 7) [gig format extension]
629                    _lev_ctrl_CC8_EXT           = 0x88, ///< Balance (MIDI Controller 8) [gig format extension]
630                    _lev_ctrl_CC9_EXT           = 0x89, ///< MIDI Controller 9 [gig format extension]
631                    _lev_ctrl_CC10_EXT          = 0x8a, ///< Pan (MIDI Controller 10) [gig format extension]
632                    _lev_ctrl_CC11_EXT          = 0x8b, ///< Expression Controller (MIDI Controller 11) [gig format extension]
633    
634                    _lev_ctrl_CC14_EXT          = 0x8e, ///< MIDI Controller 14 [gig format extension]
635                    _lev_ctrl_CC15_EXT          = 0x8f, ///< MIDI Controller 15 [gig format extension]
636    
637                    _lev_ctrl_CC20_EXT          = 0x94, ///< MIDI Controller 20 [gig format extension]
638                    _lev_ctrl_CC21_EXT          = 0x95, ///< MIDI Controller 21 [gig format extension]
639                    _lev_ctrl_CC22_EXT          = 0x96, ///< MIDI Controller 22 [gig format extension]
640                    _lev_ctrl_CC23_EXT          = 0x97, ///< MIDI Controller 23 [gig format extension]
641                    _lev_ctrl_CC24_EXT          = 0x98, ///< MIDI Controller 24 [gig format extension]
642                    _lev_ctrl_CC25_EXT          = 0x99, ///< MIDI Controller 25 [gig format extension]
643                    _lev_ctrl_CC26_EXT          = 0x9a, ///< MIDI Controller 26 [gig format extension]
644                    _lev_ctrl_CC27_EXT          = 0x9b, ///< MIDI Controller 27 [gig format extension]
645                    _lev_ctrl_CC28_EXT          = 0x9c, ///< MIDI Controller 28 [gig format extension]
646                    _lev_ctrl_CC29_EXT          = 0x9d, ///< MIDI Controller 29 [gig format extension]
647                    _lev_ctrl_CC30_EXT          = 0x9e, ///< MIDI Controller 30 [gig format extension]
648                    _lev_ctrl_CC31_EXT          = 0x9f, ///< MIDI Controller 31 [gig format extension]
649    
650                    _lev_ctrl_CC68_EXT          = 0xc4, ///< Legato Footswitch (MIDI Controller 68) [gig format extension]
651                    _lev_ctrl_CC69_EXT          = 0xc5, ///< Hold 2 (MIDI Controller 69) [gig format extension]
652                    _lev_ctrl_CC70_EXT          = 0xc6, ///< Sound Ctrl. 1 - Sound Variation (MIDI Controller 70) [gig format extension]
653                    _lev_ctrl_CC71_EXT          = 0xc7, ///< Sound Ctrl. 2 - Timbre (MIDI Controller 71) [gig format extension]
654                    _lev_ctrl_CC72_EXT          = 0xc8, ///< Sound Ctrl. 3 - Release Time (MIDI Controller 72) [gig format extension]
655                    _lev_ctrl_CC73_EXT          = 0xc9, ///< Sound Ctrl. 4 - Attack Time (MIDI Controller 73) [gig format extension]
656                    _lev_ctrl_CC74_EXT          = 0xca, ///< Sound Ctrl. 5 - Brightness (MIDI Controller 74) [gig format extension]
657                    _lev_ctrl_CC75_EXT          = 0xcb, ///< Sound Ctrl. 6 - Decay Time (MIDI Controller 75) [gig format extension]
658                    _lev_ctrl_CC76_EXT          = 0xcc, ///< Sound Ctrl. 7 - Vibrato Rate (MIDI Controller 76) [gig format extension]
659                    _lev_ctrl_CC77_EXT          = 0xcd, ///< Sound Ctrl. 8 - Vibrato Depth (MIDI Controller 77) [gig format extension]
660                    _lev_ctrl_CC78_EXT          = 0xce, ///< Sound Ctrl. 9 - Vibrato Delay (MIDI Controller 78) [gig format extension]
661                    _lev_ctrl_CC79_EXT          = 0xcf, ///< Sound Ctrl. 10 (MIDI Controller 79) [gig format extension]
662    
663                    _lev_ctrl_CC84_EXT          = 0xd4, ///< Portamento Control (MIDI Controller 84) [gig format extension]
664                    _lev_ctrl_CC85_EXT          = 0xd5, ///< MIDI Controller 85 [gig format extension]
665                    _lev_ctrl_CC86_EXT          = 0xd6, ///< MIDI Controller 86 [gig format extension]
666                    _lev_ctrl_CC87_EXT          = 0xd7, ///< MIDI Controller 87 [gig format extension]
667    
668                    _lev_ctrl_CC89_EXT          = 0xd9, ///< MIDI Controller 89 [gig format extension]
669                    _lev_ctrl_CC90_EXT          = 0xda, ///< MIDI Controller 90 [gig format extension]
670    
671                    _lev_ctrl_CC96_EXT          = 0xe0, ///< Data Increment (MIDI Controller 96) [gig format extension]
672                    _lev_ctrl_CC97_EXT          = 0xe1, ///< Data Decrement (MIDI Controller 97) [gig format extension]
673    
674                    _lev_ctrl_CC102_EXT         = 0xe6, ///< MIDI Controller 102 [gig format extension]
675                    _lev_ctrl_CC103_EXT         = 0xe7, ///< MIDI Controller 103 [gig format extension]
676                    _lev_ctrl_CC104_EXT         = 0xe8, ///< MIDI Controller 104 [gig format extension]
677                    _lev_ctrl_CC105_EXT         = 0xe9, ///< MIDI Controller 105 [gig format extension]
678                    _lev_ctrl_CC106_EXT         = 0xea, ///< MIDI Controller 106 [gig format extension]
679                    _lev_ctrl_CC107_EXT         = 0xeb, ///< MIDI Controller 107 [gig format extension]
680                    _lev_ctrl_CC108_EXT         = 0xec, ///< MIDI Controller 108 [gig format extension]
681                    _lev_ctrl_CC109_EXT         = 0xed, ///< MIDI Controller 109 [gig format extension]
682                    _lev_ctrl_CC110_EXT         = 0xee, ///< MIDI Controller 110 [gig format extension]
683                    _lev_ctrl_CC111_EXT         = 0xef, ///< MIDI Controller 111 [gig format extension]
684                    _lev_ctrl_CC112_EXT         = 0xf0, ///< MIDI Controller 112 [gig format extension]
685                    _lev_ctrl_CC113_EXT         = 0xf1, ///< MIDI Controller 113 [gig format extension]
686                    _lev_ctrl_CC114_EXT         = 0xf2, ///< MIDI Controller 114 [gig format extension]
687                    _lev_ctrl_CC115_EXT         = 0xf3, ///< MIDI Controller 115 [gig format extension]
688                    _lev_ctrl_CC116_EXT         = 0xf4, ///< MIDI Controller 116 [gig format extension]
689                    _lev_ctrl_CC117_EXT         = 0xf5, ///< MIDI Controller 117 [gig format extension]
690                    _lev_ctrl_CC118_EXT         = 0xf6, ///< MIDI Controller 118 [gig format extension]
691                    _lev_ctrl_CC119_EXT         = 0xf7  ///< MIDI Controller 119 [gig format extension]
692              } _lev_ctrl_t;              } _lev_ctrl_t;
693              typedef std::map<uint32_t, double*> VelocityTableMap;              typedef std::map<uint32_t, double*> VelocityTableMap;
694    
695              static uint              Instances;                  ///< Number of DimensionRegion instances.              static size_t            Instances;                  ///< Number of DimensionRegion instances.
696              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).
697              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.
698              double*                  pVelocityReleaseTable;      ///< Points to the velocity table corresponding to the release velocity parameters of this DimensionRegion              double*                  pVelocityReleaseTable;      ///< Points to the velocity table corresponding to the release velocity parameters of this DimensionRegion
699              double*                  pVelocityCutoffTable;       ///< Points to the velocity table corresponding to the filter velocity parameters of this DimensionRegion              double*                  pVelocityCutoffTable;       ///< Points to the velocity table corresponding to the filter velocity parameters of this DimensionRegion
700                Region*                  pRegion;
701    
702              leverage_ctrl_t DecodeLeverageController(_lev_ctrl_t EncodedController);              leverage_ctrl_t DecodeLeverageController(_lev_ctrl_t EncodedController);
703              _lev_ctrl_t     EncodeLeverageController(leverage_ctrl_t DecodedController);              _lev_ctrl_t     EncodeLeverageController(leverage_ctrl_t DecodedController);
704                double* GetReleaseVelocityTable(curve_type_t releaseVelocityResponseCurve, uint8_t releaseVelocityResponseDepth);
705                double* GetCutoffVelocityTable(curve_type_t vcfVelocityCurve, uint8_t vcfVelocityDynamicRange, uint8_t vcfVelocityScale, vcf_cutoff_ctrl_t vcfCutoffController);
706              double* GetVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling);              double* GetVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling);
707              double* CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling);              double* CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling);
708      };      };
709    
710      /** @brief Encapsulates sample waves used for playback.      /** @brief Encapsulates sample waves of Gigasampler/GigaStudio files used for playback.
711         *
712         * This class provides access to the actual audio sample data of a
713         * Gigasampler/GigaStudio file. Along to the actual sample data, it also
714         * provides access to the sample's meta informations like bit depth,
715         * sample rate, encoding type, but also loop informations. The latter may be
716         * used by instruments for resembling sounds with arbitary note lengths.
717       *       *
718       * In case you created a new sample with File::AddSample(), you should       * In case you created a new sample with File::AddSample(), you should
719       * first update all attributes with the desired meta informations       * first update all attributes with the desired meta informations
# Line 530  namespace gig { Line 727  namespace gig {
727       * retrieved from the respective DimensionRegon instead from the Sample       * retrieved from the respective DimensionRegon instead from the Sample
728       * itself. This was made for allowing different loop definitions for the       * itself. This was made for allowing different loop definitions for the
729       * same sample under different conditions.       * same sample under different conditions.
730         *
731         * Since the gig format was designed as extension to the DLS file format,
732         * this class is derived from the DLS::Sample class. So also refer to
733         * DLS::Sample for additional informations, class attributes and methods.
734       */       */
735      class Sample : public DLS::Sample {      class Sample : public DLS::Sample {
736          public:          public:
# Line 554  namespace gig { Line 755  namespace gig {
755    
756              // own methods              // own methods
757              buffer_t      LoadSampleData();              buffer_t      LoadSampleData();
758              buffer_t      LoadSampleData(unsigned long SampleCount);              buffer_t      LoadSampleData(file_offset_t SampleCount);
759              buffer_t      LoadSampleDataWithNullSamplesExtension(uint NullSamplesCount);              buffer_t      LoadSampleDataWithNullSamplesExtension(uint NullSamplesCount);
760              buffer_t      LoadSampleDataWithNullSamplesExtension(unsigned long SampleCount, uint NullSamplesCount);              buffer_t      LoadSampleDataWithNullSamplesExtension(file_offset_t SampleCount, uint NullSamplesCount);
761              buffer_t      GetCache();              buffer_t      GetCache();
762              // own static methods              // own static methods
763              static buffer_t CreateDecompressionBuffer(unsigned long MaxReadSize);              static buffer_t CreateDecompressionBuffer(file_offset_t MaxReadSize);
764              static void     DestroyDecompressionBuffer(buffer_t& DecompressionBuffer);              static void     DestroyDecompressionBuffer(buffer_t& DecompressionBuffer);
765              // overridden methods              // overridden methods
766              void          ReleaseSampleData();              void          ReleaseSampleData();
767              void          Resize(int iNewSize);              void          Resize(file_offset_t NewSize);
768              unsigned long SetPos(unsigned long SampleCount, RIFF::stream_whence_t Whence = RIFF::stream_start);              file_offset_t SetPos(file_offset_t SampleCount, RIFF::stream_whence_t Whence = RIFF::stream_start);
769              unsigned long GetPos();              file_offset_t GetPos() const;
770              unsigned long Read(void* pBuffer, unsigned long SampleCount, buffer_t* pExternalDecompressionBuffer = NULL);              file_offset_t Read(void* pBuffer, file_offset_t SampleCount, buffer_t* pExternalDecompressionBuffer = NULL);
771              unsigned long ReadAndLoop(void* pBuffer, unsigned long SampleCount, playback_state_t* pPlaybackState, DimensionRegion* pDimRgn, buffer_t* pExternalDecompressionBuffer = NULL);              file_offset_t ReadAndLoop(void* pBuffer, file_offset_t SampleCount, playback_state_t* pPlaybackState, DimensionRegion* pDimRgn, buffer_t* pExternalDecompressionBuffer = NULL);
772              unsigned long Write(void* pBuffer, unsigned long SampleCount);              file_offset_t Write(void* pBuffer, file_offset_t SampleCount);
773              Group*        GetGroup() const;              Group*        GetGroup() const;
774              virtual void  UpdateChunks();              virtual void  UpdateChunks(progress_t* pProgress);
775                void CopyAssignMeta(const Sample* orig);
776                void CopyAssignWave(const Sample* orig);
777                uint32_t GetWaveDataCRC32Checksum();
778                bool VerifyWaveData(uint32_t* pActually = NULL);
779          protected:          protected:
780              static unsigned int  Instances;               ///< Number of instances of class Sample.              static size_t        Instances;               ///< Number of instances of class Sample.
781              static buffer_t      InternalDecompressionBuffer; ///< Buffer used for decompression as well as for truncation of 24 Bit -> 16 Bit samples.              static buffer_t      InternalDecompressionBuffer; ///< Buffer used for decompression as well as for truncation of 24 Bit -> 16 Bit samples.
782              Group*               pGroup;                  ///< pointer to the Group this sample belongs to (always not-NULL)              Group*               pGroup;                  ///< pointer to the Group this sample belongs to (always not-NULL)
783              unsigned long        FrameOffset;             ///< Current offset (sample points) in current sample frame (for decompression only).              file_offset_t        FrameOffset;             ///< Current offset (sample points) in current sample frame (for decompression only).
784              unsigned long*       FrameTable;              ///< For positioning within compressed samples only: stores the offset values for each frame.              file_offset_t*       FrameTable;              ///< For positioning within compressed samples only: stores the offset values for each frame.
785              unsigned long        SamplePos;               ///< For compressed samples only: stores the current position (in sample points).              file_offset_t        SamplePos;               ///< For compressed samples only: stores the current position (in sample points).
786              unsigned long        SamplesInLastFrame;      ///< For compressed samples only: length of the last sample frame.              file_offset_t        SamplesInLastFrame;      ///< For compressed samples only: length of the last sample frame.
787              unsigned long        WorstCaseFrameSize;      ///< For compressed samples only: size (in bytes) of the largest possible sample frame.              file_offset_t        WorstCaseFrameSize;      ///< For compressed samples only: size (in bytes) of the largest possible sample frame.
788              unsigned long        SamplesPerFrame;         ///< For compressed samples only: number of samples in a full sample frame.              file_offset_t        SamplesPerFrame;         ///< For compressed samples only: number of samples in a full sample frame.
789              buffer_t             RAMCache;                ///< Buffers samples (already uncompressed) in RAM.              buffer_t             RAMCache;                ///< Buffers samples (already uncompressed) in RAM.
790              unsigned long        FileNo;                  ///< File number (> 0 when sample is stored in an extension file, 0 when it's in the gig)              unsigned long        FileNo;                  ///< File number (> 0 when sample is stored in an extension file, 0 when it's in the gig)
791              RIFF::Chunk*         pCk3gix;              RIFF::Chunk*         pCk3gix;
792              RIFF::Chunk*         pCkSmpl;              RIFF::Chunk*         pCkSmpl;
793              CRC                  crc;              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().
794    
795              Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset, unsigned long fileNo = 0);              Sample(File* pFile, RIFF::List* waveList, file_offset_t WavePoolOffset, unsigned long fileNo = 0, int index = -1);
796             ~Sample();             ~Sample();
797                uint32_t CalculateWaveDataChecksum();
798    
799              // Guess size (in bytes) of a compressed sample              // Guess size (in bytes) of a compressed sample
800              inline unsigned long GuessSize(unsigned long samples) {              inline file_offset_t GuessSize(file_offset_t samples) {
801                  // 16 bit: assume all frames are compressed - 1 byte                  // 16 bit: assume all frames are compressed - 1 byte
802                  // per sample and 5 bytes header per 2048 samples                  // per sample and 5 bytes header per 2048 samples
803    
804                  // 24 bit: assume next best compression rate - 1.5                  // 24 bit: assume next best compression rate - 1.5
805                  // bytes per sample and 13 bytes header per 256                  // bytes per sample and 13 bytes header per 256
806                  // samples                  // samples
807                  const unsigned long size =                  const file_offset_t size =
808                      BitDepth == 24 ? samples + (samples >> 1) + (samples >> 8) * 13                      BitDepth == 24 ? samples + (samples >> 1) + (samples >> 8) * 13
809                                     : samples + (samples >> 10) * 5;                                     : samples + (samples >> 10) * 5;
810                  // Double for stereo and add one worst case sample                  // Double for stereo and add one worst case sample
# Line 608  namespace gig { Line 814  namespace gig {
814    
815              // Worst case amount of sample points that can be read with the              // Worst case amount of sample points that can be read with the
816              // given decompression buffer.              // given decompression buffer.
817              inline unsigned long WorstCaseMaxSamples(buffer_t* pDecompressionBuffer) {              inline file_offset_t WorstCaseMaxSamples(buffer_t* pDecompressionBuffer) {
818                  return (unsigned long) ((float)pDecompressionBuffer->Size / (float)WorstCaseFrameSize * (float)SamplesPerFrame);                  return (file_offset_t) ((float)pDecompressionBuffer->Size / (float)WorstCaseFrameSize * (float)SamplesPerFrame);
819              }              }
820          private:          private:
821              void ScanCompressedSample();              void ScanCompressedSample();
# Line 619  namespace gig { Line 825  namespace gig {
825      };      };
826    
827      // TODO: <3dnl> list not used yet - not important though (just contains optional descriptions for the dimensions)      // TODO: <3dnl> list not used yet - not important though (just contains optional descriptions for the dimensions)
828      /** Defines <i>Region</i> information of an <i>Instrument</i>. */      /** @brief Defines Region information of a Gigasampler/GigaStudio instrument.
829         *
830         * A Region reflects a consecutive area (key range) on the keyboard. The
831         * individual regions in the gig format may not overlap with other regions
832         * (of the same instrument that is). Further, in the gig format a Region is
833         * merely a container for DimensionRegions (a.k.a. "Cases"). The Region
834         * itself does not provide the sample mapping or articulation informations
835         * used, even though the data structures of regions indeed provide such
836         * informations. The latter is however just of historical nature, because
837         * the gig file format was derived from the DLS file format.
838         *
839         * Each Region consists of at least one or more DimensionRegions. The actual
840         * amount of DimensionRegions depends on which kind of "dimensions" are
841         * defined for this region, and on the split / zone amount for each of those
842         * dimensions.
843         *
844         * Since the gig format was designed as extension to the DLS file format,
845         * this class is derived from the DLS::Region class. So also refer to
846         * DLS::Region for additional informations, class attributes and methods.
847         */
848      class Region : public DLS::Region {      class Region : public DLS::Region {
849          public:          public:
850              unsigned int            Dimensions;               ///< Number of defined dimensions, do not alter!              unsigned int            Dimensions;               ///< Number of defined dimensions, do not alter!
# Line 628  namespace gig { Line 853  namespace gig {
853              DimensionRegion*        pDimensionRegions[256];   ///< Pointer array to the 32 (gig2) or 256 (gig3) possible dimension regions (reflects NULL for dimension regions not in use). Avoid to access the array directly and better use GetDimensionRegionByValue() instead, but of course in some cases it makes sense to use the array (e.g. iterating through all DimensionRegions). Use AddDimension() and DeleteDimension() to create a new dimension or delete an existing one (which will create or delete the respective dimension region(s) automatically).              DimensionRegion*        pDimensionRegions[256];   ///< Pointer array to the 32 (gig2) or 256 (gig3) possible dimension regions (reflects NULL for dimension regions not in use). Avoid to access the array directly and better use GetDimensionRegionByValue() instead, but of course in some cases it makes sense to use the array (e.g. iterating through all DimensionRegions). Use AddDimension() and DeleteDimension() to create a new dimension or delete an existing one (which will create or delete the respective dimension region(s) automatically).
854              unsigned int            Layers;                   ///< Amount of defined layers (1 - 32). A value of 1 actually means no layering, a value > 1 means there is Layer dimension. The same information can of course also be obtained by accessing pDimensionDefinitions. Do not alter this value!              unsigned int            Layers;                   ///< Amount of defined layers (1 - 32). A value of 1 actually means no layering, a value > 1 means there is Layer dimension. The same information can of course also be obtained by accessing pDimensionDefinitions. Do not alter this value!
855    
856                // own methods
857              DimensionRegion* GetDimensionRegionByValue(const uint DimValues[8]);              DimensionRegion* GetDimensionRegionByValue(const uint DimValues[8]);
858              DimensionRegion* GetDimensionRegionByBit(const uint8_t DimBits[8]);              DimensionRegion* GetDimensionRegionByBit(const uint8_t DimBits[8]);
859                int              GetDimensionRegionIndexByValue(const uint DimValues[8]);
860              Sample*          GetSample();              Sample*          GetSample();
861              void             AddDimension(dimension_def_t* pDimDef);              void             AddDimension(dimension_def_t* pDimDef);
862              void             DeleteDimension(dimension_def_t* pDimDef);              void             DeleteDimension(dimension_def_t* pDimDef);
863              virtual void     UpdateChunks();              dimension_def_t* GetDimensionDefinition(dimension_t type);
864                void             DeleteDimensionZone(dimension_t type, int zone);
865                void             SplitDimensionZone(dimension_t type, int zone);
866                void             SetDimensionType(dimension_t oldType, dimension_t newType);
867                // overridden methods
868                virtual void     SetKeyRange(uint16_t Low, uint16_t High);
869                virtual void     UpdateChunks(progress_t* pProgress);
870                virtual void     CopyAssign(const Region* orig);
871          protected:          protected:
872              Region(Instrument* pInstrument, RIFF::List* rgnList);              Region(Instrument* pInstrument, RIFF::List* rgnList);
873              void LoadDimensionRegions(RIFF::List* rgn);              void LoadDimensionRegions(RIFF::List* rgn);
874              void UpdateVelocityTable();              void UpdateVelocityTable();
875              Sample* GetSampleFromWavePool(unsigned int WavePoolTableIndex, progress_t* pProgress = NULL);              Sample* GetSampleFromWavePool(unsigned int WavePoolTableIndex, progress_t* pProgress = NULL);
876                void CopyAssign(const Region* orig, const std::map<Sample*,Sample*>* mSamples);
877                DimensionRegion* GetDimensionRegionByBit(const std::map<dimension_t,int>& DimCase);
878             ~Region();             ~Region();
879              friend class Instrument;              friend class Instrument;
880      };      };
881    
882      /** Provides all neccessary information for the synthesis of an <i>Instrument</i>. */      /** @brief Abstract base class for all MIDI rules.
883         *
884         * Note: Instead of using MIDI rules, we recommend you using real-time
885         * instrument scripts instead. Read about the reasons below.
886         *
887         * MIDI Rules (also called "iMIDI rules" or "intelligent MIDI rules") were
888         * introduced with GigaStudio 4 as an attempt to increase the power of
889         * potential user controls over sounds. At that point other samplers already
890         * supported certain powerful user control features, which were not possible
891         * with GigaStudio yet. For example triggering new notes by MIDI CC
892         * controller.
893         *
894         * Such extended features however were usually implemented by other samplers
895         * by requiring the sound designer to write an instrument script which the
896         * designer would then bundle with the respective instrument file. Such
897         * scripts are essentially text files, using a very specific programming
898         * language for the purpose of controlling the sampler in real-time. Since
899         * however musicians are not typically keen to writing such cumbersome
900         * script files, the GigaStudio designers decided to implement such extended
901         * features completely without instrument scripts. Instead they created a
902         * set of rules, which could be defined and altered conveniently by mouse
903         * clicks in GSt's instrument editor application. The downside of this
904         * overall approach however, was that those MIDI rules were very limited in
905         * practice. As sound designer you easily came across the possiblities such
906         * MIDI rules were able to offer.
907         *
908         * Due to such severe use case constraints, support for MIDI rules is quite
909         * limited in libgig. At the moment only the "Control Trigger", "Alternator"
910         * and the "Legato" MIDI rules are supported by libgig. Consequently the
911         * graphical instrument editor application gigedit just supports the
912         * "Control Trigger" and "Legato" MIDI rules, and LinuxSampler even does not
913         * support any MIDI rule type at all and LinuxSampler probably will not
914         * support MIDI rules in future either.
915         *
916         * Instead of using MIDI rules, we introduced real-time instrument scripts
917         * as extension to the original GigaStudio file format. This script based
918         * solution is much more powerful than MIDI rules and is already supported
919         * by libgig, gigedit and LinuxSampler.
920         *
921         * @deprecated Just provided for backward compatiblity, use Script for new
922         *             instruments instead.
923         */
924        class MidiRule {
925            public:
926                virtual ~MidiRule() { }
927            protected:
928                virtual void UpdateChunks(uint8_t* pData) const = 0;
929                friend class Instrument;
930        };
931    
932        /** @brief MIDI rule for triggering notes by control change events.
933         *
934         * A "Control Trigger MIDI rule" allows to trigger new notes by sending MIDI
935         * control change events to the sampler.
936         *
937         * Note: "Control Trigger" MIDI rules are only supported by gigedit, but not
938         * by LinuxSampler. We recommend you using real-time instrument scripts
939         * instead. Read more about the details and reasons for this in the
940         * description of the MidiRule base class.
941         *
942         * @deprecated Just provided for backward compatiblity, use Script for new
943         *             instruments instead. See description of MidiRule for details.
944         */
945        class MidiRuleCtrlTrigger : public MidiRule {
946            public:
947                uint8_t ControllerNumber;   ///< MIDI controller number.
948                uint8_t Triggers;           ///< Number of triggers.
949                struct trigger_t {
950                    uint8_t TriggerPoint;   ///< The CC value to pass for the note to be triggered.
951                    bool    Descending;     ///< If the change in CC value should be downwards.
952                    uint8_t VelSensitivity; ///< How sensitive the velocity should be to the speed of the controller change.
953                    uint8_t Key;            ///< Key to trigger.
954                    bool    NoteOff;        ///< If a note off should be triggered instead of a note on.
955                    uint8_t Velocity;       ///< Velocity of the note to trigger. 255 means that velocity should depend on the speed of the controller change.
956                    bool    OverridePedal;  ///< If a note off should be triggered even if the sustain pedal is down.
957                } pTriggers[32];
958    
959            protected:
960                MidiRuleCtrlTrigger(RIFF::Chunk* _3ewg);
961                MidiRuleCtrlTrigger();
962                void UpdateChunks(uint8_t* pData) const;
963                friend class Instrument;
964        };
965    
966        /** @brief MIDI rule for instruments with legato samples.
967         *
968         * A "Legato MIDI rule" allows playing instruments resembling the legato
969         * playing technique. In the past such legato articulations were tried to be
970         * simulated by pitching the samples of the instrument. However since
971         * usually a high amount of pitch is needed for legatos, this always sounded
972         * very artificial and unrealistic. The "Legato MIDI rule" thus uses another
973         * approach. Instead of pitching the samples, it allows the sound designer
974         * to bundle separate, additional samples for the individual legato
975         * situations and the legato rules defined which samples to be played in
976         * which situation.
977         *
978         * Note: "Legato MIDI rules" are only supported by gigedit, but not
979         * by LinuxSampler. We recommend you using real-time instrument scripts
980         * instead. Read more about the details and reasons for this in the
981         * description of the MidiRule base class.
982         *
983         * @deprecated Just provided for backward compatiblity, use Script for new
984         *             instruments instead. See description of MidiRule for details.
985         */
986        class MidiRuleLegato : public MidiRule {
987            public:
988                uint8_t LegatoSamples;     ///< Number of legato samples per key in each direction (always 12)
989                bool BypassUseController;  ///< If a controller should be used to bypass the sustain note
990                uint8_t BypassKey;         ///< Key to be used to bypass the sustain note
991                uint8_t BypassController;  ///< Controller to be used to bypass the sustain note
992                uint16_t ThresholdTime;    ///< Maximum time (ms) between two notes that should be played legato
993                uint16_t ReleaseTime;      ///< Release time
994                range_t KeyRange;          ///< Key range for legato notes
995                uint8_t ReleaseTriggerKey; ///< Key triggering release samples
996                uint8_t AltSustain1Key;    ///< Key triggering alternate sustain samples
997                uint8_t AltSustain2Key;    ///< Key triggering a second set of alternate sustain samples
998    
999            protected:
1000                MidiRuleLegato(RIFF::Chunk* _3ewg);
1001                MidiRuleLegato();
1002                void UpdateChunks(uint8_t* pData) const;
1003                friend class Instrument;
1004        };
1005    
1006        /** @brief MIDI rule to automatically cycle through specified sequences of different articulations.
1007         *
1008         * The instrument must be using the smartmidi dimension.
1009         *
1010         * Note: "Alternator" MIDI rules are neither supported by gigedit nor by
1011         * LinuxSampler. We recommend you using real-time instrument scripts
1012         * instead. Read more about the details and reasons for this in the
1013         * description of the MidiRule base class.
1014         *
1015         * @deprecated Just provided for backward compatiblity, use Script for new
1016         *             instruments instead. See description of MidiRule for details.
1017         */
1018        class MidiRuleAlternator : public MidiRule {
1019            public:
1020                uint8_t Articulations;     ///< Number of articulations in the instrument
1021                String pArticulations[32]; ///< Names of the articulations
1022    
1023                range_t PlayRange;         ///< Key range of the playable keys in the instrument
1024    
1025                uint8_t Patterns;          ///< Number of alternator patterns
1026                struct pattern_t {
1027                    String Name;           ///< Name of the pattern
1028                    int Size;              ///< Number of steps in the pattern
1029                    const uint8_t& operator[](int i) const { /// Articulation to play
1030                        return data[i];
1031                    }
1032                    uint8_t& operator[](int i) {
1033                        return data[i];
1034                    }
1035                private:
1036                    uint8_t data[32];
1037                } pPatterns[32];           ///< A pattern is a sequence of articulation numbers
1038    
1039                typedef enum {
1040                    selector_none,
1041                    selector_key_switch,
1042                    selector_controller
1043                } selector_t;
1044                selector_t Selector;       ///< Method by which pattern is chosen
1045                range_t KeySwitchRange;    ///< Key range for key switch selector
1046                uint8_t Controller;        ///< CC number for controller selector
1047    
1048                bool Polyphonic;           ///< If alternator should step forward only when all notes are off
1049                bool Chained;              ///< If all patterns should be chained together
1050    
1051            protected:
1052                MidiRuleAlternator(RIFF::Chunk* _3ewg);
1053                MidiRuleAlternator();
1054                void UpdateChunks(uint8_t* pData) const;
1055                friend class Instrument;
1056        };
1057    
1058        /** @brief A MIDI rule not yet implemented by libgig.
1059         *
1060         * This class is currently used as a place holder by libgig for MIDI rule
1061         * types which are not supported by libgig yet.
1062         *
1063         * Note: Support for missing MIDI rule types are probably never added to
1064         * libgig. We recommend you using real-time instrument scripts instead.
1065         * Read more about the details and reasons for this in the description of
1066         * the MidiRule base class.
1067         *
1068         * @deprecated Just provided for backward compatiblity, use Script for new
1069         *             instruments instead. See description of MidiRule for details.
1070         */
1071        class MidiRuleUnknown : public MidiRule {
1072            protected:
1073                MidiRuleUnknown() { }
1074                void UpdateChunks(uint8_t* pData) const { }
1075                friend class Instrument;
1076        };
1077    
1078        /** @brief Real-time instrument script (gig format extension).
1079         *
1080         * Real-time instrument scripts are user supplied small programs which can
1081         * be used by instrument designers to create custom behaviors and features
1082         * not available in the stock sampler engine. Features which might be very
1083         * exotic or specific for the respective instrument.
1084         *
1085         * This is an extension of the GigaStudio format, thus a feature which was
1086         * not available in the GigaStudio 4 software. It is currently only
1087         * supported by LinuxSampler and gigedit. Scripts will not load with the
1088         * original GigaStudio software.
1089         *
1090         * You find more informations about Instrument Scripts on the LinuxSampler
1091         * documentation site:
1092         *
1093         * - <a href="http://doc.linuxsampler.org/Instrument_Scripts/">About Instrument Scripts in General</a>
1094         * - <a href="http://doc.linuxsampler.org/Instrument_Scripts/NKSP_Language">Introduction to the NKSP Script Language</a>
1095         * - <a href="http://doc.linuxsampler.org/Instrument_Scripts/NKSP_Language/Reference/">NKSP Reference Manual</a>
1096         * - <a href="http://doc.linuxsampler.org/Gigedit/Managing_Scripts">Using Instrument Scripts with Gigedit</a>
1097         */
1098        class Script {
1099            public:
1100                enum Encoding_t {
1101                    ENCODING_ASCII = 0 ///< Standard 8 bit US ASCII character encoding (default).
1102                };
1103                enum Compression_t {
1104                    COMPRESSION_NONE = 0 ///< Is not compressed at all (default).
1105                };
1106                enum Language_t {
1107                    LANGUAGE_NKSP = 0 ///< NKSP stands for "Is Not KSP" (default). Refer to the <a href="http://doc.linuxsampler.org/Instrument_Scripts/NKSP_Language/Reference/">NKSP Reference Manual</a> for details about this script language.
1108                };
1109    
1110                String         Name;        ///< Arbitrary name of the script, which may be displayed i.e. in an instrument editor.
1111                Compression_t  Compression; ///< Whether the script was/should be compressed, and if so, which compression algorithm shall be used.
1112                Encoding_t     Encoding;    ///< Format the script's source code text is encoded with.
1113                Language_t     Language;    ///< Programming language and dialect the script is written in.
1114                bool           Bypass;      ///< Global bypass: if enabled, this script shall not be executed by the sampler for any instrument.
1115    
1116                String GetScriptAsText();
1117                void   SetScriptAsText(const String& text);
1118                void   SetGroup(ScriptGroup* pGroup);
1119                ScriptGroup* GetGroup() const;
1120                void   CopyAssign(const Script* orig);
1121            protected:
1122                Script(ScriptGroup* group, RIFF::Chunk* ckScri);
1123                virtual ~Script();
1124                void UpdateChunks(progress_t* pProgress);
1125                void RemoveAllScriptReferences();
1126                friend class ScriptGroup;
1127                friend class Instrument;
1128            private:
1129                ScriptGroup*          pGroup;
1130                RIFF::Chunk*          pChunk; ///< 'Scri' chunk
1131                std::vector<uint8_t>  data;
1132                uint32_t              crc; ///< CRC-32 checksum of the raw script data
1133        };
1134    
1135        /** @brief Group of instrument scripts (gig format extension).
1136         *
1137         * This class is simply used to sort a bunch of real-time instrument scripts
1138         * into individual groups. This allows instrument designers and script
1139         * developers to keep scripts in a certain order while working with a larger
1140         * amount of scripts in an instrument editor.
1141         *
1142         * This is an extension of the GigaStudio format, thus a feature which was
1143         * not available in the GigaStudio 4 software. It is currently only
1144         * supported by LinuxSampler and gigedit.
1145         */
1146        class ScriptGroup {
1147            public:
1148                String   Name; ///< Name of this script group. For example to be displayed in an instrument editor.
1149    
1150                Script*  GetScript(uint index);
1151                Script*  AddScript();
1152                void     DeleteScript(Script* pScript);
1153            protected:
1154                ScriptGroup(File* file, RIFF::List* lstRTIS);
1155                virtual ~ScriptGroup();
1156                void LoadScripts();
1157                void UpdateChunks(progress_t* pProgress);
1158                friend class Script;
1159                friend class File;
1160            private:
1161                File*                pFile;
1162                RIFF::List*          pList; ///< 'RTIS' list chunk
1163                std::list<Script*>*  pScripts;
1164        };
1165    
1166        /** @brief Provides access to a Gigasampler/GigaStudio instrument.
1167         *
1168         * This class provides access to Gigasampler/GigaStudio instruments
1169         * contained in .gig files. A gig instrument is merely a set of keyboard
1170         * ranges (called Region), plus some additional global informations about
1171         * the instrument. The major part of the actual instrument definition used
1172         * for the synthesis of the instrument is contained in the respective Region
1173         * object (or actually in the respective DimensionRegion object being, see
1174         * description of Region for details).
1175         *
1176         * Since the gig format was designed as extension to the DLS file format,
1177         * this class is derived from the DLS::Instrument class. So also refer to
1178         * DLS::Instrument for additional informations, class attributes and
1179         * methods.
1180         */
1181      class Instrument : protected DLS::Instrument {      class Instrument : protected DLS::Instrument {
1182          public:          public:
1183              // derived attributes from DLS::Resource              // derived attributes from DLS::Resource
1184              DLS::Resource::pInfo;              using DLS::Resource::pInfo;
1185              DLS::Resource::pDLSID;              using DLS::Resource::pDLSID;
1186              // derived attributes from DLS::Instrument              // derived attributes from DLS::Instrument
1187              DLS::Instrument::IsDrum;              using DLS::Instrument::IsDrum;
1188              DLS::Instrument::MIDIBank;              using DLS::Instrument::MIDIBank;
1189              DLS::Instrument::MIDIBankCoarse;              using DLS::Instrument::MIDIBankCoarse;
1190              DLS::Instrument::MIDIBankFine;              using DLS::Instrument::MIDIBankFine;
1191              DLS::Instrument::MIDIProgram;              using DLS::Instrument::MIDIProgram;
1192              DLS::Instrument::Regions;              using DLS::Instrument::Regions;
1193              // own attributes              // own attributes
1194              int32_t   Attenuation;       ///< in dB              int32_t   Attenuation;       ///< in dB
1195              uint16_t  EffectSend;              uint16_t  EffectSend;
# Line 666  namespace gig { Line 1200  namespace gig {
1200    
1201    
1202              // derived methods from DLS::Resource              // derived methods from DLS::Resource
1203              DLS::Resource::GetParent;              using DLS::Resource::GetParent;
             // derived methods from DLS::Instrument  
             DLS::Instrument::MoveRegion;  
1204              // overridden methods              // overridden methods
1205              Region*   GetFirstRegion();              Region*   GetFirstRegion();
1206              Region*   GetNextRegion();              Region*   GetNextRegion();
1207              Region*   AddRegion();              Region*   AddRegion();
1208              void      DeleteRegion(Region* pRegion);              void      DeleteRegion(Region* pRegion);
1209              virtual void UpdateChunks();              void      MoveTo(Instrument* dst);
1210                virtual void UpdateChunks(progress_t* pProgress);
1211                virtual void CopyAssign(const Instrument* orig);
1212              // own methods              // own methods
1213              Region*   GetRegion(unsigned int Key);              Region*   GetRegion(unsigned int Key);
1214                MidiRule* GetMidiRule(int i);
1215                MidiRuleCtrlTrigger* AddMidiRuleCtrlTrigger();
1216                MidiRuleLegato*      AddMidiRuleLegato();
1217                MidiRuleAlternator*  AddMidiRuleAlternator();
1218                void      DeleteMidiRule(int i);
1219                // real-time instrument script methods
1220                Script*   GetScriptOfSlot(uint index);
1221                void      AddScriptSlot(Script* pScript, bool bypass = false);
1222                void      SwapScriptSlots(uint index1, uint index2);
1223                void      RemoveScriptSlot(uint index);
1224                void      RemoveScript(Script* pScript);
1225                uint      ScriptSlotCount() const;
1226                bool      IsScriptSlotBypassed(uint index);
1227                void      SetScriptSlotBypassed(uint index, bool bBypass);
1228          protected:          protected:
1229              Region*   RegionKeyTable[128]; ///< fast lookup for the corresponding Region of a MIDI key              Region*   RegionKeyTable[128]; ///< fast lookup for the corresponding Region of a MIDI key
1230    
1231              Instrument(File* pFile, RIFF::List* insList, progress_t* pProgress = NULL);              Instrument(File* pFile, RIFF::List* insList, progress_t* pProgress = NULL);
1232             ~Instrument();             ~Instrument();
1233                void CopyAssign(const Instrument* orig, const std::map<Sample*,Sample*>* mSamples);
1234              void UpdateRegionKeyTable();              void UpdateRegionKeyTable();
1235                void LoadScripts();
1236                void UpdateScriptFileOffsets();
1237              friend class File;              friend class File;
1238                friend class Region; // so Region can call UpdateRegionKeyTable()
1239            private:
1240                struct _ScriptPooolEntry {
1241                    uint32_t fileOffset;
1242                    bool     bypass;
1243                };
1244                struct _ScriptPooolRef {
1245                    Script*  script;
1246                    bool     bypass;
1247                };
1248                MidiRule** pMidiRules;
1249                std::vector<_ScriptPooolEntry> scriptPoolFileOffsets;
1250                std::vector<_ScriptPooolRef>* pScriptRefs;
1251      };      };
1252    
1253      /** @brief Group of Gigasampler objects      /** @brief Group of Gigasampler samples
1254       *       *
1255       * Groups help to organize a huge collection of Gigasampler objects.       * Groups help to organize a huge collection of Gigasampler samples.
1256       * Groups are not concerned at all for the synthesis, but they help       * Groups are not concerned at all for the synthesis, but they help
1257       * sound library developers when working on complex instruments with an       * sound library developers when working on complex instruments with an
1258       * instrument editor (as long as that instrument editor supports it ;-).       * instrument editor (as long as that instrument editor supports it ;-).
1259       *       *
      * At the moment, it seems as only samples can be grouped together in  
      * the Gigasampler format yet. If this is false in the meantime, please  
      * tell us !  
      *  
1260       * A sample is always assigned to exactly one Group. This also means       * A sample is always assigned to exactly one Group. This also means
1261       * there is always at least one Group in a .gig file, no matter if you       * there is always at least one Group in a .gig file, no matter if you
1262       * created one yet or not.       * created one yet or not.
# Line 711  namespace gig { Line 1271  namespace gig {
1271          protected:          protected:
1272              Group(File* file, RIFF::Chunk* ck3gnm);              Group(File* file, RIFF::Chunk* ck3gnm);
1273              virtual ~Group();              virtual ~Group();
1274              virtual void UpdateChunks();              virtual void UpdateChunks(progress_t* pProgress);
1275              void MoveAll();              void MoveAll();
1276              friend class File;              friend class File;
1277          private:          private:
1278              File*        pFile;              File*        pFile;
1279              RIFF::Chunk* pNameChunk;              RIFF::Chunk* pNameChunk; ///< '3gnm' chunk
1280      };      };
1281    
1282      /** Parses Gigasampler files and provides abstract access to the data. */      /** @brief Provides convenient access to Gigasampler/GigaStudio .gig files.
1283         *
1284         * This is the entry class for accesing a Gigasampler/GigaStudio (.gig) file
1285         * with libgig. It allows you to open existing .gig files, modifying them
1286         * and saving them persistently either under the same file name or under a
1287         * different location.
1288         *
1289         * A .gig file is merely a monolithic file. That means samples and the
1290         * defintion of the virtual instruments are contained in the same file. A
1291         * .gig file contains an arbitrary amount of samples, and an arbitrary
1292         * amount of instruments which are referencing those samples. It is also
1293         * possible to store samples in .gig files not being referenced by any
1294         * instrument. This is not an error from the file format's point of view and
1295         * it is actually often used in practice during the design phase of new gig
1296         * instruments.
1297         *
1298         * So on toplevel of the gig file format you have:
1299         *
1300         * - A set of samples (see Sample).
1301         * - A set of virtual instruments (see Instrument).
1302         *
1303         * And as extension to the original GigaStudio format, we added:
1304         *
1305         * - Real-time instrument scripts (see Script).
1306         *
1307         * Note that the latter however is only supported by libgig, gigedit and
1308         * LinuxSampler. Scripts are not supported by the original GigaStudio
1309         * software.
1310         *
1311         * All released Gigasampler/GigaStudio file format versions are supported
1312         * (so from first Gigasampler version up to including GigaStudio 4).
1313         *
1314         * Since the gig format was designed as extension to the DLS file format,
1315         * this class is derived from the DLS::File class. So also refer to
1316         * DLS::File for additional informations, class attributes and methods.
1317         */
1318      class File : protected DLS::File {      class File : protected DLS::File {
1319          public:          public:
1320              static const DLS::version_t VERSION_2;              static const DLS::version_t VERSION_2;
1321              static const DLS::version_t VERSION_3;              static const DLS::version_t VERSION_3;
1322    
1323              // derived attributes from DLS::Resource              // derived attributes from DLS::Resource
1324              DLS::Resource::pInfo;              using DLS::Resource::pInfo;
1325              DLS::Resource::pDLSID;              using DLS::Resource::pDLSID;
1326              // derived attributes from DLS::File              // derived attributes from DLS::File
1327              DLS::File::pVersion;              using DLS::File::pVersion;
1328              DLS::File::Instruments;              using DLS::File::Instruments;
1329    
1330              // derived methods from DLS::Resource              // derived methods from DLS::Resource
1331              DLS::Resource::GetParent;              using DLS::Resource::GetParent;
1332              // derived methods from DLS::File              // derived methods from DLS::File
1333              DLS::File::Save;              using DLS::File::Save;
1334                using DLS::File::GetFileName;
1335                using DLS::File::SetFileName;
1336              // overridden  methods              // overridden  methods
1337              File();              File();
1338              File(RIFF::File* pRIFF);              File(RIFF::File* pRIFF);
1339              Sample*     GetFirstSample(progress_t* pProgress = NULL); ///< Returns a pointer to the first <i>Sample</i> object of the file, <i>NULL</i> otherwise.              Sample*     GetFirstSample(progress_t* pProgress = NULL); ///< Returns a pointer to the first <i>Sample</i> object of the file, <i>NULL</i> otherwise.
1340              Sample*     GetNextSample();      ///< Returns a pointer to the next <i>Sample</i> object of the file, <i>NULL</i> otherwise.              Sample*     GetNextSample();      ///< Returns a pointer to the next <i>Sample</i> object of the file, <i>NULL</i> otherwise.
1341                Sample*     GetSample(uint index);
1342              Sample*     AddSample();              Sample*     AddSample();
1343              void        DeleteSample(Sample* pSample);              void        DeleteSample(Sample* pSample);
1344              Instrument* GetFirstInstrument(); ///< Returns a pointer to the first <i>Instrument</i> object of the file, <i>NULL</i> otherwise.              Instrument* GetFirstInstrument(); ///< Returns a pointer to the first <i>Instrument</i> object of the file, <i>NULL</i> otherwise.
1345              Instrument* GetNextInstrument();  ///< Returns a pointer to the next <i>Instrument</i> object of the file, <i>NULL</i> otherwise.              Instrument* GetNextInstrument();  ///< Returns a pointer to the next <i>Instrument</i> object of the file, <i>NULL</i> otherwise.
1346              Instrument* GetInstrument(uint index, progress_t* pProgress = NULL);              Instrument* GetInstrument(uint index, progress_t* pProgress = NULL);
1347              Instrument* AddInstrument();              Instrument* AddInstrument();
1348                Instrument* AddDuplicateInstrument(const Instrument* orig);
1349              void        DeleteInstrument(Instrument* pInstrument);              void        DeleteInstrument(Instrument* pInstrument);
1350              Group*      GetFirstGroup(); ///< Returns a pointer to the first <i>Group</i> object of the file, <i>NULL</i> otherwise.              Group*      GetFirstGroup(); ///< Returns a pointer to the first <i>Group</i> object of the file, <i>NULL</i> otherwise.
1351              Group*      GetNextGroup();  ///< Returns a pointer to the next <i>Group</i> object of the file, <i>NULL</i> otherwise.              Group*      GetNextGroup();  ///< Returns a pointer to the next <i>Group</i> object of the file, <i>NULL</i> otherwise.
1352              Group*      GetGroup(uint index);              Group*      GetGroup(uint index);
1353                Group*      GetGroup(String name);
1354              Group*      AddGroup();              Group*      AddGroup();
1355              void        DeleteGroup(Group* pGroup);              void        DeleteGroup(Group* pGroup);
1356              void        DeleteGroupOnly(Group* pGroup);              void        DeleteGroupOnly(Group* pGroup);
1357                void        SetAutoLoad(bool b);
1358                bool        GetAutoLoad();
1359                void        AddContentOf(File* pFile);
1360                ScriptGroup* GetScriptGroup(uint index);
1361                ScriptGroup* GetScriptGroup(const String& name);
1362                ScriptGroup* AddScriptGroup();
1363                void        DeleteScriptGroup(ScriptGroup* pGroup);
1364              virtual    ~File();              virtual    ~File();
1365              virtual void UpdateChunks();              virtual void UpdateChunks(progress_t* pProgress);
1366          protected:          protected:
1367              // overridden protected methods from DLS::File              // overridden protected methods from DLS::File
1368              virtual void LoadSamples();              virtual void LoadSamples();
1369              virtual void LoadInstruments();              virtual void LoadInstruments();
1370              virtual void LoadGroups();              virtual void LoadGroups();
1371                virtual void UpdateFileOffsets();
1372              // own protected methods              // own protected methods
1373              virtual void LoadSamples(progress_t* pProgress);              virtual void LoadSamples(progress_t* pProgress);
1374              virtual void LoadInstruments(progress_t* pProgress);              virtual void LoadInstruments(progress_t* pProgress);
1375                virtual void LoadScriptGroups();
1376              void SetSampleChecksum(Sample* pSample, uint32_t crc);              void SetSampleChecksum(Sample* pSample, uint32_t crc);
1377                uint32_t GetSampleChecksum(Sample* pSample);
1378                uint32_t GetSampleChecksumByIndex(int index);
1379                bool VerifySampleChecksumTable();
1380                bool RebuildSampleChecksumTable();
1381                int  GetWaveTableIndexOf(gig::Sample* pSample);
1382              friend class Region;              friend class Region;
1383              friend class Sample;              friend class Sample;
1384                friend class Instrument;
1385              friend class Group; // so Group can access protected member pRIFF              friend class Group; // so Group can access protected member pRIFF
1386                friend class ScriptGroup; // so ScriptGroup can access protected member pRIFF
1387          private:          private:
             static const DLS::Info::FixedStringLength FixedStringLengths[];  
1388              std::list<Group*>*          pGroups;              std::list<Group*>*          pGroups;
1389              std::list<Group*>::iterator GroupsIterator;              std::list<Group*>::iterator GroupsIterator;
1390                bool                        bAutoLoad;
1391                std::list<ScriptGroup*>*    pScriptGroups;
1392      };      };
1393    
1394      /**      /**
# Line 784  namespace gig { Line 1401  namespace gig {
1401       */       */
1402      class Exception : public DLS::Exception {      class Exception : public DLS::Exception {
1403          public:          public:
1404              Exception(String Message);              Exception(String format, ...);
1405                Exception(String format, va_list arg);
1406              void PrintMessage();              void PrintMessage();
1407            protected:
1408                Exception();
1409      };      };
1410    
1411    #if HAVE_RTTI
1412        size_t enumCount(const std::type_info& type);
1413        const char* enumKey(const std::type_info& type, size_t value);
1414        bool        enumKey(const std::type_info& type, String key);
1415        const char** enumKeys(const std::type_info& type);
1416    #endif // HAVE_RTTI
1417        size_t enumCount(String typeName);
1418        const char* enumKey(String typeName, size_t value);
1419        bool        enumKey(String typeName, String key);
1420        const char** enumKeys(String typeName);
1421        size_t enumValue(String key);
1422    
1423      String libraryName();      String libraryName();
1424      String libraryVersion();      String libraryVersion();
1425    

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