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// jar_mod.h - v0.01 - public domain C0 - Joshua Reisenauer |
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// |
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// HISTORY: |
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// |
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// v0.01 2016-03-12 Setup |
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// |
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// |
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// USAGE: |
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// |
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// In ONE source file, put: |
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// |
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// #define JAR_MOD_IMPLEMENTATION |
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// #include "jar_mod.h" |
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// |
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// Other source files should just include jar_mod.h |
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// |
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// SAMPLE CODE: |
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// jar_mod_context_t modctx; |
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// short samplebuff[4096]; |
| 20 |
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// bool bufferFull = false; |
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// int intro_load(void) |
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// { |
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// jar_mod_init(&modctx); |
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// jar_mod_load_file(&modctx, "file.mod"); |
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// return 1; |
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// } |
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// int intro_unload(void) |
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// { |
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// jar_mod_unload(&modctx); |
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// return 1; |
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// } |
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// int intro_tick(long counter) |
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// { |
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// if(!bufferFull) |
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// { |
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// jar_mod_fillbuffer(&modctx, samplebuff, 4096, 0); |
| 37 |
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// bufferFull=true; |
| 38 |
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// } |
| 39 |
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// if(IsKeyDown(KEY_ENTER)) |
| 40 |
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// return 1; |
| 41 |
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// return 0; |
| 42 |
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// } |
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// |
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// |
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// LISCENSE: |
| 46 |
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// |
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// Written by: Jean-François DEL NERO (http://hxc2001.com/) <Email : jeanfrancoisdelnero <> free.fr> |
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// Adapted to jar_mod by: Joshua Adam Reisenauer <kd7tck@gmail.com> |
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// This program is free software. It comes without any warranty, to the |
| 50 |
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// extent permitted by applicable law. You can redistribute it and/or |
| 51 |
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// modify it under the terms of the Do What The Fuck You Want To Public |
| 52 |
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// License, Version 2, as published by Sam Hocevar. See |
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// http://sam.zoy.org/wtfpl/COPYING for more details. |
| 54 |
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/////////////////////////////////////////////////////////////////////////////////// |
| 55 |
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// HxCMOD Core API: |
| 56 |
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// ------------------------------------------- |
| 57 |
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// int jar_mod_init(jar_mod_context_t * modctx) |
| 58 |
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// |
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// - Initialize the jar_mod_context_t buffer. Must be called before doing anything else. |
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// Return 1 if success. 0 in case of error. |
| 61 |
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// ------------------------------------------- |
| 62 |
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// mulong jar_mod_load_file(jar_mod_context_t * modctx, const char* filename) |
| 63 |
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// |
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// - "Load" a MOD from file, context must already be initialized. |
| 65 |
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// Return size of file in bytes. |
| 66 |
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// ------------------------------------------- |
| 67 |
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// void jar_mod_fillbuffer( jar_mod_context_t * modctx, short * outbuffer, unsigned long nbsample, jar_mod_tracker_buffer_state * trkbuf ) |
| 68 |
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// |
| 69 |
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// - Generate and return the next samples chunk to outbuffer. |
| 70 |
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// nbsample specify the number of stereo 16bits samples you want. |
| 71 |
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// The output format is by default signed 48000Hz 16-bit Stereo PCM samples, otherwise it is changed with jar_mod_setcfg(). |
| 72 |
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// The output buffer size in bytes must be equal to ( nbsample * 2 * channels ). |
| 73 |
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// The optional trkbuf parameter can be used to get detailed status of the player. Put NULL/0 is unused. |
| 74 |
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// ------------------------------------------- |
| 75 |
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// void jar_mod_unload( jar_mod_context_t * modctx ) |
| 76 |
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// - "Unload" / clear the player status. |
| 77 |
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// ------------------------------------------- |
| 78 |
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/////////////////////////////////////////////////////////////////////////////////// |
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#ifndef INCLUDE_JAR_MOD_H |
| 82 |
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#define INCLUDE_JAR_MOD_H |
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| 84 |
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// Allow custom memory allocators |
| 85 |
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#ifndef JARMOD_MALLOC |
| 86 |
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#define JARMOD_MALLOC(sz) malloc(sz) |
| 87 |
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#endif |
| 88 |
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#ifndef JARMOD_FREE |
| 89 |
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#define JARMOD_FREE(p) free(p) |
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#endif |
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// Basic type |
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typedef unsigned char muchar; |
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typedef unsigned short muint; |
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typedef short mint; |
| 97 |
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typedef unsigned long mulong; |
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#define NUMMAXCHANNELS 32 |
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#define MAXNOTES 12*12 |
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#define DEFAULT_SAMPLE_RATE 48000 |
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// |
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// MOD file structures |
| 104 |
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// |
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| 106 |
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#pragma pack(1) |
| 107 |
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| 108 |
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typedef struct { |
| 109 |
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muchar name[22]; |
| 110 |
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muint length; |
| 111 |
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muchar finetune; |
| 112 |
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muchar volume; |
| 113 |
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muint reppnt; |
| 114 |
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muint replen; |
| 115 |
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} sample; |
| 116 |
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| 117 |
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typedef struct { |
| 118 |
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muchar sampperiod; |
| 119 |
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muchar period; |
| 120 |
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muchar sampeffect; |
| 121 |
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muchar effect; |
| 122 |
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} note; |
| 123 |
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| 124 |
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typedef struct { |
| 125 |
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muchar title[20]; |
| 126 |
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sample samples[31]; |
| 127 |
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muchar length; // length of tablepos |
| 128 |
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muchar protracker; |
| 129 |
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muchar patterntable[128]; |
| 130 |
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muchar signature[4]; |
| 131 |
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muchar speed; |
| 132 |
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} module; |
| 133 |
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| 134 |
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#pragma pack() |
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| 136 |
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// |
| 137 |
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// HxCMod Internal structures |
| 138 |
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// |
| 139 |
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typedef struct { |
| 140 |
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char* sampdata; |
| 141 |
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muint sampnum; |
| 142 |
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muint length; |
| 143 |
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muint reppnt; |
| 144 |
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muint replen; |
| 145 |
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mulong samppos; |
| 146 |
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muint period; |
| 147 |
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muchar volume; |
| 148 |
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mulong ticks; |
| 149 |
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muchar effect; |
| 150 |
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muchar parameffect; |
| 151 |
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muint effect_code; |
| 152 |
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mint decalperiod; |
| 153 |
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mint portaspeed; |
| 154 |
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mint portaperiod; |
| 155 |
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mint vibraperiod; |
| 156 |
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mint Arpperiods[3]; |
| 157 |
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muchar ArpIndex; |
| 158 |
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mint oldk; |
| 159 |
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muchar volumeslide; |
| 160 |
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muchar vibraparam; |
| 161 |
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muchar vibrapointeur; |
| 162 |
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muchar finetune; |
| 163 |
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muchar cut_param; |
| 164 |
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muint patternloopcnt; |
| 165 |
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muint patternloopstartpoint; |
| 166 |
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} channel; |
| 167 |
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| 168 |
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typedef struct { |
| 169 |
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module song; |
| 170 |
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char* sampledata[31]; |
| 171 |
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note* patterndata[128]; |
| 172 |
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| 173 |
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mulong playrate; |
| 174 |
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muint tablepos; |
| 175 |
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muint patternpos; |
| 176 |
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muint patterndelay; |
| 177 |
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muint jump_loop_effect; |
| 178 |
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muchar bpm; |
| 179 |
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mulong patternticks; |
| 180 |
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mulong patterntickse; |
| 181 |
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mulong patternticksaim; |
| 182 |
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mulong sampleticksconst; |
| 183 |
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mulong samplenb; |
| 184 |
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channel channels[NUMMAXCHANNELS]; |
| 185 |
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muint number_of_channels; |
| 186 |
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muint fullperiod[MAXNOTES * 8]; |
| 187 |
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muint mod_loaded; |
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mint last_r_sample; |
| 189 |
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mint last_l_sample; |
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mint stereo; |
| 191 |
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mint stereo_separation; |
| 192 |
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mint bits; |
| 193 |
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mint filter; |
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| 195 |
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muchar *modfile; // the raw mod file |
| 196 |
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mulong modfilesize; |
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muint loopcount; |
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} jar_mod_context_t; |
| 199 |
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| 200 |
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// |
| 201 |
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// Player states structures |
| 202 |
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// |
| 203 |
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typedef struct track_state_ |
| 204 |
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{ |
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unsigned char instrument_number; |
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unsigned short cur_period; |
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unsigned char cur_volume; |
| 208 |
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unsigned short cur_effect; |
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unsigned short cur_parameffect; |
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}track_state; |
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typedef struct tracker_state_ |
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{ |
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int number_of_tracks; |
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int bpm; |
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int speed; |
| 217 |
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int cur_pattern; |
| 218 |
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int cur_pattern_pos; |
| 219 |
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int cur_pattern_table_pos; |
| 220 |
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unsigned int buf_index; |
| 221 |
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track_state tracks[32]; |
| 222 |
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}tracker_state; |
| 223 |
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| 224 |
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typedef struct tracker_state_instrument_ |
| 225 |
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{ |
| 226 |
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char name[22]; |
| 227 |
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int active; |
| 228 |
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}tracker_state_instrument; |
| 229 |
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| 230 |
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typedef struct jar_mod_tracker_buffer_state_ |
| 231 |
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{ |
| 232 |
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int nb_max_of_state; |
| 233 |
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int nb_of_state; |
| 234 |
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int cur_rd_index; |
| 235 |
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int sample_step; |
| 236 |
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char name[64]; |
| 237 |
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tracker_state_instrument instruments[31]; |
| 238 |
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tracker_state * track_state_buf; |
| 239 |
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}jar_mod_tracker_buffer_state; |
| 240 |
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| 241 |
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#ifdef __cplusplus |
| 242 |
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extern "C" { |
| 243 |
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#endif |
| 244 |
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| 245 |
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bool jar_mod_init(jar_mod_context_t * modctx); |
| 246 |
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bool jar_mod_setcfg(jar_mod_context_t * modctx, int samplerate, int bits, int stereo, int stereo_separation, int filter); |
| 247 |
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void jar_mod_fillbuffer(jar_mod_context_t * modctx, short * outbuffer, unsigned long nbsample, jar_mod_tracker_buffer_state * trkbuf); |
| 248 |
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void jar_mod_unload(jar_mod_context_t * modctx); |
| 249 |
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mulong jar_mod_load_file(jar_mod_context_t * modctx, const char* filename); |
| 250 |
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mulong jar_mod_current_samples(jar_mod_context_t * modctx); |
| 251 |
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mulong jar_mod_max_samples(jar_mod_context_t * modctx); |
| 252 |
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void jar_mod_seek_start(jar_mod_context_t * ctx); |
| 253 |
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| 254 |
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#ifdef __cplusplus |
| 255 |
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} |
| 256 |
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#endif |
| 257 |
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//-------------------------------------------------------------------- |
| 258 |
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| 259 |
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| 260 |
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| 261 |
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//------------------------------------------------------------------------------- |
| 262 |
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#ifdef JAR_MOD_IMPLEMENTATION |
| 263 |
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| 264 |
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#include <stdio.h> |
| 265 |
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#include <stdlib.h> |
| 266 |
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//#include <stdbool.h> |
| 267 |
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| 268 |
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// Effects list |
| 269 |
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#define EFFECT_ARPEGGIO 0x0 // Supported |
| 270 |
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#define EFFECT_PORTAMENTO_UP 0x1 // Supported |
| 271 |
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#define EFFECT_PORTAMENTO_DOWN 0x2 // Supported |
| 272 |
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#define EFFECT_TONE_PORTAMENTO 0x3 // Supported |
| 273 |
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#define EFFECT_VIBRATO 0x4 // Supported |
| 274 |
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#define EFFECT_VOLSLIDE_TONEPORTA 0x5 // Supported |
| 275 |
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#define EFFECT_VOLSLIDE_VIBRATO 0x6 // Supported |
| 276 |
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#define EFFECT_VOLSLIDE_TREMOLO 0x7 // - TO BE DONE - |
| 277 |
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#define EFFECT_SET_PANNING 0x8 // - TO BE DONE - |
| 278 |
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#define EFFECT_SET_OFFSET 0x9 // Supported |
| 279 |
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#define EFFECT_VOLUME_SLIDE 0xA // Supported |
| 280 |
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#define EFFECT_JUMP_POSITION 0xB // Supported |
| 281 |
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#define EFFECT_SET_VOLUME 0xC // Supported |
| 282 |
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#define EFFECT_PATTERN_BREAK 0xD // Supported |
| 283 |
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| 284 |
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#define EFFECT_EXTENDED 0xE |
| 285 |
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#define EFFECT_E_FINE_PORTA_UP 0x1 // Supported |
| 286 |
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#define EFFECT_E_FINE_PORTA_DOWN 0x2 // Supported |
| 287 |
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#define EFFECT_E_GLISSANDO_CTRL 0x3 // - TO BE DONE - |
| 288 |
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#define EFFECT_E_VIBRATO_WAVEFORM 0x4 // - TO BE DONE - |
| 289 |
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#define EFFECT_E_SET_FINETUNE 0x5 // - TO BE DONE - |
| 290 |
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#define EFFECT_E_PATTERN_LOOP 0x6 // Supported |
| 291 |
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#define EFFECT_E_TREMOLO_WAVEFORM 0x7 // - TO BE DONE - |
| 292 |
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#define EFFECT_E_SET_PANNING_2 0x8 // - TO BE DONE - |
| 293 |
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#define EFFECT_E_RETRIGGER_NOTE 0x9 // - TO BE DONE - |
| 294 |
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#define EFFECT_E_FINE_VOLSLIDE_UP 0xA // Supported |
| 295 |
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#define EFFECT_E_FINE_VOLSLIDE_DOWN 0xB // Supported |
| 296 |
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#define EFFECT_E_NOTE_CUT 0xC // Supported |
| 297 |
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#define EFFECT_E_NOTE_DELAY 0xD // - TO BE DONE - |
| 298 |
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#define EFFECT_E_PATTERN_DELAY 0xE // Supported |
| 299 |
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#define EFFECT_E_INVERT_LOOP 0xF // - TO BE DONE - |
| 300 |
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#define EFFECT_SET_SPEED 0xF0 // Supported |
| 301 |
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#define EFFECT_SET_TEMPO 0xF2 // Supported |
| 302 |
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| 303 |
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#define PERIOD_TABLE_LENGTH MAXNOTES |
| 304 |
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#define FULL_PERIOD_TABLE_LENGTH ( PERIOD_TABLE_LENGTH * 8 ) |
| 305 |
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|
| 306 |
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static const short periodtable[]= |
| 307 |
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{ |
| 308 |
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27392, 25856, 24384, 23040, 21696, 20480, 19328, 18240, 17216, 16256, 15360, 14496, |
| 309 |
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13696, 12928, 12192, 11520, 10848, 10240, 9664, 9120, 8606, 8128, 7680, 7248, |
| 310 |
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6848, 6464, 6096, 5760, 5424, 5120, 4832, 4560, 4304, 4064, 3840, 3624, |
| 311 |
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3424, 3232, 3048, 2880, 2712, 2560, 2416, 2280, 2152, 2032, 1920, 1812, |
| 312 |
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1712, 1616, 1524, 1440, 1356, 1280, 1208, 1140, 1076, 1016, 960, 906, |
| 313 |
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856, 808, 762, 720, 678, 640, 604, 570, 538, 508, 480, 453, |
| 314 |
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428, 404, 381, 360, 339, 320, 302, 285, 269, 254, 240, 226, |
| 315 |
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214, 202, 190, 180, 170, 160, 151, 143, 135, 127, 120, 113, |
| 316 |
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107, 101, 95, 90, 85, 80, 75, 71, 67, 63, 60, 56, |
| 317 |
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53, 50, 47, 45, 42, 40, 37, 35, 33, 31, 30, 28, |
| 318 |
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27, 25, 24, 22, 21, 20, 19, 18, 17, 16, 15, 14, |
| 319 |
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13, 13, 12, 11, 11, 10, 9, 9, 8, 8, 7, 7 |
| 320 |
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}; |
| 321 |
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| 322 |
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static const short sintable[]={ |
| 323 |
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0, 24, 49, 74, 97, 120, 141,161, |
| 324 |
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180, 197, 212, 224, 235, 244, 250,253, |
| 325 |
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255, 253, 250, 244, 235, 224, 212,197, |
| 326 |
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180, 161, 141, 120, 97, 74, 49, 24 |
| 327 |
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}; |
| 328 |
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|
| 329 |
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typedef struct modtype_ |
| 330 |
|
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{ |
| 331 |
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unsigned char signature[5]; |
| 332 |
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int numberofchannels; |
| 333 |
|
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}modtype; |
| 334 |
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|
| 335 |
|
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modtype modlist[]= |
| 336 |
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{ |
| 337 |
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{ "M!K!",4}, |
| 338 |
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{ "M.K.",4}, |
| 339 |
|
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{ "FLT4",4}, |
| 340 |
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{ "FLT8",8}, |
| 341 |
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{ "4CHN",4}, |
| 342 |
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{ "6CHN",6}, |
| 343 |
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{ "8CHN",8}, |
| 344 |
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{ "10CH",10}, |
| 345 |
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{ "12CH",12}, |
| 346 |
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{ "14CH",14}, |
| 347 |
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{ "16CH",16}, |
| 348 |
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{ "18CH",18}, |
| 349 |
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{ "20CH",20}, |
| 350 |
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{ "22CH",22}, |
| 351 |
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{ "24CH",24}, |
| 352 |
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{ "26CH",26}, |
| 353 |
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{ "28CH",28}, |
| 354 |
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{ "30CH",30}, |
| 355 |
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{ "32CH",32}, |
| 356 |
|
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{ "",0} |
| 357 |
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}; |
| 358 |
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| 359 |
|
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/////////////////////////////////////////////////////////////////////////////////// |
| 360 |
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|
| 361 |
|
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static void memcopy( void * dest, void *source, unsigned long size ) |
| 362 |
|
|
{ |
| 363 |
|
|
unsigned long i; |
| 364 |
|
|
unsigned char * d,*s; |
| 365 |
|
|
|
| 366 |
|
|
d=(unsigned char*)dest; |
| 367 |
|
|
s=(unsigned char*)source; |
| 368 |
|
✗ |
for(i=0;i<size;i++) |
| 369 |
|
|
{ |
| 370 |
|
✗ |
d[i]=s[i]; |
| 371 |
|
|
} |
| 372 |
|
|
} |
| 373 |
|
|
|
| 374 |
|
|
static void memclear( void * dest, unsigned char value, unsigned long size ) |
| 375 |
|
|
{ |
| 376 |
|
|
unsigned long i; |
| 377 |
|
|
unsigned char * d; |
| 378 |
|
|
|
| 379 |
|
|
d=(unsigned char*)dest; |
| 380 |
|
✗ |
for(i=0;i<size;i++) |
| 381 |
|
|
{ |
| 382 |
|
✗ |
d[i]=value; |
| 383 |
|
|
} |
| 384 |
|
|
} |
| 385 |
|
|
|
| 386 |
|
|
static int memcompare( unsigned char * buf1, unsigned char * buf2, unsigned int size ) |
| 387 |
|
|
{ |
| 388 |
|
|
unsigned int i; |
| 389 |
|
|
|
| 390 |
|
|
i = 0; |
| 391 |
|
|
|
| 392 |
|
✗ |
while(i<size) |
| 393 |
|
|
{ |
| 394 |
|
✗ |
if(buf1[i] != buf2[i]) |
| 395 |
|
|
{ |
| 396 |
|
|
return 0; |
| 397 |
|
|
} |
| 398 |
|
✗ |
i++; |
| 399 |
|
|
} |
| 400 |
|
|
|
| 401 |
|
|
return 1; |
| 402 |
|
|
} |
| 403 |
|
|
|
| 404 |
|
|
static int getnote( jar_mod_context_t * mod, unsigned short period, int finetune ) |
| 405 |
|
|
{ |
| 406 |
|
|
int i; |
| 407 |
|
|
|
| 408 |
|
✗ |
for(i = 0; i < FULL_PERIOD_TABLE_LENGTH; i++) |
| 409 |
|
|
{ |
| 410 |
|
✗ |
if(period >= mod->fullperiod[i]) |
| 411 |
|
|
{ |
| 412 |
|
|
return i; |
| 413 |
|
|
} |
| 414 |
|
|
} |
| 415 |
|
|
|
| 416 |
|
|
return MAXNOTES; |
| 417 |
|
|
} |
| 418 |
|
|
|
| 419 |
|
✗ |
static void worknote( note * nptr, channel * cptr, char t, jar_mod_context_t * mod ) |
| 420 |
|
|
{ |
| 421 |
|
|
muint sample, period, effect, operiod; |
| 422 |
|
|
muint curnote, arpnote; |
| 423 |
|
|
|
| 424 |
|
✗ |
sample = (nptr->sampperiod & 0xF0) | (nptr->sampeffect >> 4); |
| 425 |
|
✗ |
period = ((nptr->sampperiod & 0xF) << 8) | nptr->period; |
| 426 |
|
✗ |
effect = ((nptr->sampeffect & 0xF) << 8) | nptr->effect; |
| 427 |
|
|
|
| 428 |
|
✗ |
operiod = cptr->period; |
| 429 |
|
|
|
| 430 |
|
✗ |
if ( period || sample ) |
| 431 |
|
|
{ |
| 432 |
|
✗ |
if( sample && sample < 32 ) |
| 433 |
|
|
{ |
| 434 |
|
✗ |
cptr->sampnum = sample - 1; |
| 435 |
|
|
} |
| 436 |
|
|
|
| 437 |
|
|
if( period || sample ) |
| 438 |
|
|
{ |
| 439 |
|
✗ |
cptr->sampdata = (char *) mod->sampledata[cptr->sampnum]; |
| 440 |
|
✗ |
cptr->length = mod->song.samples[cptr->sampnum].length; |
| 441 |
|
✗ |
cptr->reppnt = mod->song.samples[cptr->sampnum].reppnt; |
| 442 |
|
✗ |
cptr->replen = mod->song.samples[cptr->sampnum].replen; |
| 443 |
|
|
|
| 444 |
|
✗ |
cptr->finetune = (mod->song.samples[cptr->sampnum].finetune)&0xF; |
| 445 |
|
|
|
| 446 |
|
✗ |
if(effect>>8!=4 && effect>>8!=6) |
| 447 |
|
|
{ |
| 448 |
|
✗ |
cptr->vibraperiod=0; |
| 449 |
|
✗ |
cptr->vibrapointeur=0; |
| 450 |
|
|
} |
| 451 |
|
|
} |
| 452 |
|
|
|
| 453 |
|
✗ |
if( (sample != 0) && ( (effect>>8) != EFFECT_VOLSLIDE_TONEPORTA ) ) |
| 454 |
|
|
{ |
| 455 |
|
✗ |
cptr->volume = mod->song.samples[cptr->sampnum].volume; |
| 456 |
|
✗ |
cptr->volumeslide = 0; |
| 457 |
|
|
} |
| 458 |
|
|
|
| 459 |
|
✗ |
if( ( (effect>>8) != EFFECT_TONE_PORTAMENTO && (effect>>8)!=EFFECT_VOLSLIDE_TONEPORTA) ) |
| 460 |
|
|
{ |
| 461 |
|
✗ |
if (period!=0) |
| 462 |
|
✗ |
cptr->samppos = 0; |
| 463 |
|
|
} |
| 464 |
|
|
|
| 465 |
|
✗ |
cptr->decalperiod = 0; |
| 466 |
|
✗ |
if( period ) |
| 467 |
|
|
{ |
| 468 |
|
✗ |
if(cptr->finetune) |
| 469 |
|
|
{ |
| 470 |
|
✗ |
if( cptr->finetune <= 7 ) |
| 471 |
|
|
{ |
| 472 |
|
✗ |
period = mod->fullperiod[getnote(mod,period,0) + cptr->finetune]; |
| 473 |
|
|
} |
| 474 |
|
|
else |
| 475 |
|
|
{ |
| 476 |
|
✗ |
period = mod->fullperiod[getnote(mod,period,0) - (16 - (cptr->finetune)) ]; |
| 477 |
|
|
} |
| 478 |
|
|
} |
| 479 |
|
|
|
| 480 |
|
✗ |
cptr->period = period; |
| 481 |
|
|
} |
| 482 |
|
|
|
| 483 |
|
|
} |
| 484 |
|
|
|
| 485 |
|
✗ |
cptr->effect = 0; |
| 486 |
|
✗ |
cptr->parameffect = 0; |
| 487 |
|
✗ |
cptr->effect_code = effect; |
| 488 |
|
|
|
| 489 |
|
✗ |
switch (effect >> 8) |
| 490 |
|
|
{ |
| 491 |
|
✗ |
case EFFECT_ARPEGGIO: |
| 492 |
|
|
/* |
| 493 |
|
|
[0]: Arpeggio |
| 494 |
|
|
Where [0][x][y] means "play note, note+x semitones, note+y |
| 495 |
|
|
semitones, then return to original note". The fluctuations are |
| 496 |
|
|
carried out evenly spaced in one pattern division. They are usually |
| 497 |
|
|
used to simulate chords, but this doesn't work too well. They are |
| 498 |
|
|
also used to produce heavy vibrato. A major chord is when x=4, y=7. |
| 499 |
|
|
A minor chord is when x=3, y=7. |
| 500 |
|
|
*/ |
| 501 |
|
|
|
| 502 |
|
✗ |
if(effect&0xff) |
| 503 |
|
|
{ |
| 504 |
|
|
cptr->effect = EFFECT_ARPEGGIO; |
| 505 |
|
✗ |
cptr->parameffect = effect&0xff; |
| 506 |
|
|
|
| 507 |
|
✗ |
cptr->ArpIndex = 0; |
| 508 |
|
|
|
| 509 |
|
✗ |
curnote = getnote(mod,cptr->period,cptr->finetune); |
| 510 |
|
|
|
| 511 |
|
✗ |
cptr->Arpperiods[0] = cptr->period; |
| 512 |
|
|
|
| 513 |
|
✗ |
arpnote = curnote + (((cptr->parameffect>>4)&0xF)*8); |
| 514 |
|
|
if( arpnote >= FULL_PERIOD_TABLE_LENGTH ) |
| 515 |
|
|
arpnote = FULL_PERIOD_TABLE_LENGTH - 1; |
| 516 |
|
|
|
| 517 |
|
✗ |
cptr->Arpperiods[1] = mod->fullperiod[arpnote]; |
| 518 |
|
|
|
| 519 |
|
✗ |
arpnote = curnote + (((cptr->parameffect)&0xF)*8); |
| 520 |
|
|
if( arpnote >= FULL_PERIOD_TABLE_LENGTH ) |
| 521 |
|
|
arpnote = FULL_PERIOD_TABLE_LENGTH - 1; |
| 522 |
|
|
|
| 523 |
|
✗ |
cptr->Arpperiods[2] = mod->fullperiod[arpnote]; |
| 524 |
|
|
} |
| 525 |
|
|
break; |
| 526 |
|
|
|
| 527 |
|
✗ |
case EFFECT_PORTAMENTO_UP: |
| 528 |
|
|
/* |
| 529 |
|
|
[1]: Slide up |
| 530 |
|
|
Where [1][x][y] means "smoothly decrease the period of current |
| 531 |
|
|
sample by x*16+y after each tick in the division". The |
| 532 |
|
|
ticks/division are set with the 'set speed' effect (see below). If |
| 533 |
|
|
the period of the note being played is z, then the final period |
| 534 |
|
|
will be z - (x*16 + y)*(ticks - 1). As the slide rate depends on |
| 535 |
|
|
the speed, changing the speed will change the slide. You cannot |
| 536 |
|
|
slide beyond the note B3 (period 113). |
| 537 |
|
|
*/ |
| 538 |
|
|
|
| 539 |
|
✗ |
cptr->effect = EFFECT_PORTAMENTO_UP; |
| 540 |
|
✗ |
cptr->parameffect = effect&0xff; |
| 541 |
|
✗ |
break; |
| 542 |
|
|
|
| 543 |
|
✗ |
case EFFECT_PORTAMENTO_DOWN: |
| 544 |
|
|
/* |
| 545 |
|
|
[2]: Slide down |
| 546 |
|
|
Where [2][x][y] means "smoothly increase the period of current |
| 547 |
|
|
sample by x*16+y after each tick in the division". Similar to [1], |
| 548 |
|
|
but lowers the pitch. You cannot slide beyond the note C1 (period |
| 549 |
|
|
856). |
| 550 |
|
|
*/ |
| 551 |
|
|
|
| 552 |
|
✗ |
cptr->effect = EFFECT_PORTAMENTO_DOWN; |
| 553 |
|
✗ |
cptr->parameffect = effect&0xff; |
| 554 |
|
✗ |
break; |
| 555 |
|
|
|
| 556 |
|
✗ |
case EFFECT_TONE_PORTAMENTO: |
| 557 |
|
|
/* |
| 558 |
|
|
[3]: Slide to note |
| 559 |
|
|
Where [3][x][y] means "smoothly change the period of current sample |
| 560 |
|
|
by x*16+y after each tick in the division, never sliding beyond |
| 561 |
|
|
current period". The period-length in this channel's division is a |
| 562 |
|
|
parameter to this effect, and hence is not played. Sliding to a |
| 563 |
|
|
note is similar to effects [1] and [2], but the slide will not go |
| 564 |
|
|
beyond the given period, and the direction is implied by that |
| 565 |
|
|
period. If x and y are both 0, then the old slide will continue. |
| 566 |
|
|
*/ |
| 567 |
|
|
|
| 568 |
|
✗ |
cptr->effect = EFFECT_TONE_PORTAMENTO; |
| 569 |
|
✗ |
if( (effect&0xff) != 0 ) |
| 570 |
|
|
{ |
| 571 |
|
✗ |
cptr->portaspeed = (short)(effect&0xff); |
| 572 |
|
|
} |
| 573 |
|
|
|
| 574 |
|
✗ |
if(period!=0) |
| 575 |
|
|
{ |
| 576 |
|
✗ |
cptr->portaperiod = period; |
| 577 |
|
✗ |
cptr->period = operiod; |
| 578 |
|
|
} |
| 579 |
|
|
break; |
| 580 |
|
|
|
| 581 |
|
✗ |
case EFFECT_VIBRATO: |
| 582 |
|
|
/* |
| 583 |
|
|
[4]: Vibrato |
| 584 |
|
|
Where [4][x][y] means "oscillate the sample pitch using a |
| 585 |
|
|
particular waveform with amplitude y/16 semitones, such that (x * |
| 586 |
|
|
ticks)/64 cycles occur in the division". The waveform is set using |
| 587 |
|
|
effect [14][4]. By placing vibrato effects on consecutive |
| 588 |
|
|
divisions, the vibrato effect can be maintained. If either x or y |
| 589 |
|
|
are 0, then the old vibrato values will be used. |
| 590 |
|
|
*/ |
| 591 |
|
|
|
| 592 |
|
✗ |
cptr->effect = EFFECT_VIBRATO; |
| 593 |
|
✗ |
if( ( effect & 0x0F ) != 0 ) // Depth continue or change ? |
| 594 |
|
✗ |
cptr->vibraparam = (cptr->vibraparam & 0xF0) | ( effect & 0x0F ); |
| 595 |
|
✗ |
if( ( effect & 0xF0 ) != 0 ) // Speed continue or change ? |
| 596 |
|
✗ |
cptr->vibraparam = (cptr->vibraparam & 0x0F) | ( effect & 0xF0 ); |
| 597 |
|
|
|
| 598 |
|
|
break; |
| 599 |
|
|
|
| 600 |
|
✗ |
case EFFECT_VOLSLIDE_TONEPORTA: |
| 601 |
|
|
/* |
| 602 |
|
|
[5]: Continue 'Slide to note', but also do Volume slide |
| 603 |
|
|
Where [5][x][y] means "either slide the volume up x*(ticks - 1) or |
| 604 |
|
|
slide the volume down y*(ticks - 1), at the same time as continuing |
| 605 |
|
|
the last 'Slide to note'". It is illegal for both x and y to be |
| 606 |
|
|
non-zero. You cannot slide outside the volume range 0..64. The |
| 607 |
|
|
period-length in this channel's division is a parameter to this |
| 608 |
|
|
effect, and hence is not played. |
| 609 |
|
|
*/ |
| 610 |
|
|
|
| 611 |
|
✗ |
if( period != 0 ) |
| 612 |
|
|
{ |
| 613 |
|
✗ |
cptr->portaperiod = period; |
| 614 |
|
✗ |
cptr->period = operiod; |
| 615 |
|
|
} |
| 616 |
|
|
|
| 617 |
|
✗ |
cptr->effect = EFFECT_VOLSLIDE_TONEPORTA; |
| 618 |
|
✗ |
if( ( effect & 0xFF ) != 0 ) |
| 619 |
|
✗ |
cptr->volumeslide = ( effect & 0xFF ); |
| 620 |
|
|
|
| 621 |
|
|
break; |
| 622 |
|
|
|
| 623 |
|
✗ |
case EFFECT_VOLSLIDE_VIBRATO: |
| 624 |
|
|
/* |
| 625 |
|
|
[6]: Continue 'Vibrato', but also do Volume slide |
| 626 |
|
|
Where [6][x][y] means "either slide the volume up x*(ticks - 1) or |
| 627 |
|
|
slide the volume down y*(ticks - 1), at the same time as continuing |
| 628 |
|
|
the last 'Vibrato'". It is illegal for both x and y to be non-zero. |
| 629 |
|
|
You cannot slide outside the volume range 0..64. |
| 630 |
|
|
*/ |
| 631 |
|
|
|
| 632 |
|
✗ |
cptr->effect = EFFECT_VOLSLIDE_VIBRATO; |
| 633 |
|
✗ |
if( (effect & 0xFF) != 0 ) |
| 634 |
|
✗ |
cptr->volumeslide = (effect & 0xFF); |
| 635 |
|
|
break; |
| 636 |
|
|
|
| 637 |
|
✗ |
case EFFECT_SET_OFFSET: |
| 638 |
|
|
/* |
| 639 |
|
|
[9]: Set sample offset |
| 640 |
|
|
Where [9][x][y] means "play the sample from offset x*4096 + y*256". |
| 641 |
|
|
The offset is measured in words. If no sample is given, yet one is |
| 642 |
|
|
still playing on this channel, it should be retriggered to the new |
| 643 |
|
|
offset using the current volume. |
| 644 |
|
|
*/ |
| 645 |
|
|
|
| 646 |
|
✗ |
cptr->samppos = ((effect>>4) * 4096) + ((effect&0xF)*256); |
| 647 |
|
|
|
| 648 |
|
✗ |
break; |
| 649 |
|
|
|
| 650 |
|
✗ |
case EFFECT_VOLUME_SLIDE: |
| 651 |
|
|
/* |
| 652 |
|
|
[10]: Volume slide |
| 653 |
|
|
Where [10][x][y] means "either slide the volume up x*(ticks - 1) or |
| 654 |
|
|
slide the volume down y*(ticks - 1)". If both x and y are non-zero, |
| 655 |
|
|
then the y value is ignored (assumed to be 0). You cannot slide |
| 656 |
|
|
outside the volume range 0..64. |
| 657 |
|
|
*/ |
| 658 |
|
|
|
| 659 |
|
✗ |
cptr->effect = EFFECT_VOLUME_SLIDE; |
| 660 |
|
✗ |
cptr->volumeslide = (effect & 0xFF); |
| 661 |
|
✗ |
break; |
| 662 |
|
|
|
| 663 |
|
✗ |
case EFFECT_JUMP_POSITION: |
| 664 |
|
|
/* |
| 665 |
|
|
[11]: Position Jump |
| 666 |
|
|
Where [11][x][y] means "stop the pattern after this division, and |
| 667 |
|
|
continue the song at song-position x*16+y". This shifts the |
| 668 |
|
|
'pattern-cursor' in the pattern table (see above). Legal values for |
| 669 |
|
|
x*16+y are from 0 to 127. |
| 670 |
|
|
*/ |
| 671 |
|
|
|
| 672 |
|
✗ |
mod->tablepos = (effect & 0xFF); |
| 673 |
|
✗ |
if(mod->tablepos >= mod->song.length) |
| 674 |
|
|
{ |
| 675 |
|
✗ |
mod->tablepos = 0; |
| 676 |
|
|
} |
| 677 |
|
✗ |
mod->patternpos = 0; |
| 678 |
|
✗ |
mod->jump_loop_effect = 1; |
| 679 |
|
|
|
| 680 |
|
✗ |
break; |
| 681 |
|
|
|
| 682 |
|
✗ |
case EFFECT_SET_VOLUME: |
| 683 |
|
|
/* |
| 684 |
|
|
[12]: Set volume |
| 685 |
|
|
Where [12][x][y] means "set current sample's volume to x*16+y". |
| 686 |
|
|
Legal volumes are 0..64. |
| 687 |
|
|
*/ |
| 688 |
|
|
|
| 689 |
|
✗ |
cptr->volume = (effect & 0xFF); |
| 690 |
|
✗ |
break; |
| 691 |
|
|
|
| 692 |
|
✗ |
case EFFECT_PATTERN_BREAK: |
| 693 |
|
|
/* |
| 694 |
|
|
[13]: Pattern Break |
| 695 |
|
|
Where [13][x][y] means "stop the pattern after this division, and |
| 696 |
|
|
continue the song at the next pattern at division x*10+y" (the 10 |
| 697 |
|
|
is not a typo). Legal divisions are from 0 to 63 (note Protracker |
| 698 |
|
|
exception above). |
| 699 |
|
|
*/ |
| 700 |
|
|
|
| 701 |
|
✗ |
mod->patternpos = ( ((effect>>4)&0xF)*10 + (effect&0xF) ) * mod->number_of_channels; |
| 702 |
|
✗ |
mod->jump_loop_effect = 1; |
| 703 |
|
✗ |
mod->tablepos++; |
| 704 |
|
✗ |
if(mod->tablepos >= mod->song.length) |
| 705 |
|
|
{ |
| 706 |
|
✗ |
mod->tablepos = 0; |
| 707 |
|
|
} |
| 708 |
|
|
|
| 709 |
|
|
break; |
| 710 |
|
|
|
| 711 |
|
✗ |
case EFFECT_EXTENDED: |
| 712 |
|
✗ |
switch( (effect>>4) & 0xF ) |
| 713 |
|
|
{ |
| 714 |
|
✗ |
case EFFECT_E_FINE_PORTA_UP: |
| 715 |
|
|
/* |
| 716 |
|
|
[14][1]: Fineslide up |
| 717 |
|
|
Where [14][1][x] means "decrement the period of the current sample |
| 718 |
|
|
by x". The incrementing takes place at the beginning of the |
| 719 |
|
|
division, and hence there is no actual sliding. You cannot slide |
| 720 |
|
|
beyond the note B3 (period 113). |
| 721 |
|
|
*/ |
| 722 |
|
|
|
| 723 |
|
✗ |
cptr->period -= (effect & 0xF); |
| 724 |
|
✗ |
if( cptr->period < 113 ) |
| 725 |
|
✗ |
cptr->period = 113; |
| 726 |
|
|
break; |
| 727 |
|
|
|
| 728 |
|
✗ |
case EFFECT_E_FINE_PORTA_DOWN: |
| 729 |
|
|
/* |
| 730 |
|
|
[14][2]: Fineslide down |
| 731 |
|
|
Where [14][2][x] means "increment the period of the current sample |
| 732 |
|
|
by x". Similar to [14][1] but shifts the pitch down. You cannot |
| 733 |
|
|
slide beyond the note C1 (period 856). |
| 734 |
|
|
*/ |
| 735 |
|
|
|
| 736 |
|
✗ |
cptr->period += (effect & 0xF); |
| 737 |
|
✗ |
if( cptr->period > 856 ) |
| 738 |
|
✗ |
cptr->period = 856; |
| 739 |
|
|
break; |
| 740 |
|
|
|
| 741 |
|
✗ |
case EFFECT_E_FINE_VOLSLIDE_UP: |
| 742 |
|
|
/* |
| 743 |
|
|
[14][10]: Fine volume slide up |
| 744 |
|
|
Where [14][10][x] means "increment the volume of the current sample |
| 745 |
|
|
by x". The incrementing takes place at the beginning of the |
| 746 |
|
|
division, and hence there is no sliding. You cannot slide beyond |
| 747 |
|
|
volume 64. |
| 748 |
|
|
*/ |
| 749 |
|
|
|
| 750 |
|
✗ |
cptr->volume += (effect & 0xF); |
| 751 |
|
✗ |
if( cptr->volume>64 ) |
| 752 |
|
✗ |
cptr->volume = 64; |
| 753 |
|
|
break; |
| 754 |
|
|
|
| 755 |
|
✗ |
case EFFECT_E_FINE_VOLSLIDE_DOWN: |
| 756 |
|
|
/* |
| 757 |
|
|
[14][11]: Fine volume slide down |
| 758 |
|
|
Where [14][11][x] means "decrement the volume of the current sample |
| 759 |
|
|
by x". Similar to [14][10] but lowers volume. You cannot slide |
| 760 |
|
|
beyond volume 0. |
| 761 |
|
|
*/ |
| 762 |
|
|
|
| 763 |
|
✗ |
cptr->volume -= (effect & 0xF); |
| 764 |
|
✗ |
if( cptr->volume > 200 ) |
| 765 |
|
✗ |
cptr->volume = 0; |
| 766 |
|
|
break; |
| 767 |
|
|
|
| 768 |
|
✗ |
case EFFECT_E_PATTERN_LOOP: |
| 769 |
|
|
/* |
| 770 |
|
|
[14][6]: Loop pattern |
| 771 |
|
|
Where [14][6][x] means "set the start of a loop to this division if |
| 772 |
|
|
x is 0, otherwise after this division, jump back to the start of a |
| 773 |
|
|
loop and play it another x times before continuing". If the start |
| 774 |
|
|
of the loop was not set, it will default to the start of the |
| 775 |
|
|
current pattern. Hence 'loop pattern' cannot be performed across |
| 776 |
|
|
multiple patterns. Note that loops do not support nesting, and you |
| 777 |
|
|
may generate an infinite loop if you try to nest 'loop pattern's. |
| 778 |
|
|
*/ |
| 779 |
|
|
|
| 780 |
|
✗ |
if( effect & 0xF ) |
| 781 |
|
|
{ |
| 782 |
|
✗ |
if( cptr->patternloopcnt ) |
| 783 |
|
|
{ |
| 784 |
|
✗ |
cptr->patternloopcnt--; |
| 785 |
|
✗ |
if( cptr->patternloopcnt ) |
| 786 |
|
|
{ |
| 787 |
|
✗ |
mod->patternpos = cptr->patternloopstartpoint; |
| 788 |
|
✗ |
mod->jump_loop_effect = 1; |
| 789 |
|
|
} |
| 790 |
|
|
else |
| 791 |
|
|
{ |
| 792 |
|
✗ |
cptr->patternloopstartpoint = mod->patternpos ; |
| 793 |
|
|
} |
| 794 |
|
|
} |
| 795 |
|
|
else |
| 796 |
|
|
{ |
| 797 |
|
✗ |
cptr->patternloopcnt = (effect & 0xF); |
| 798 |
|
✗ |
mod->patternpos = cptr->patternloopstartpoint; |
| 799 |
|
✗ |
mod->jump_loop_effect = 1; |
| 800 |
|
|
} |
| 801 |
|
|
} |
| 802 |
|
|
else // Start point |
| 803 |
|
|
{ |
| 804 |
|
✗ |
cptr->patternloopstartpoint = mod->patternpos; |
| 805 |
|
|
} |
| 806 |
|
|
|
| 807 |
|
|
break; |
| 808 |
|
|
|
| 809 |
|
✗ |
case EFFECT_E_PATTERN_DELAY: |
| 810 |
|
|
/* |
| 811 |
|
|
[14][14]: Delay pattern |
| 812 |
|
|
Where [14][14][x] means "after this division there will be a delay |
| 813 |
|
|
equivalent to the time taken to play x divisions after which the |
| 814 |
|
|
pattern will be resumed". The delay only relates to the |
| 815 |
|
|
interpreting of new divisions, and all effects and previous notes |
| 816 |
|
|
continue during delay. |
| 817 |
|
|
*/ |
| 818 |
|
|
|
| 819 |
|
✗ |
mod->patterndelay = (effect & 0xF); |
| 820 |
|
✗ |
break; |
| 821 |
|
|
|
| 822 |
|
✗ |
case EFFECT_E_NOTE_CUT: |
| 823 |
|
|
/* |
| 824 |
|
|
[14][12]: Cut sample |
| 825 |
|
|
Where [14][12][x] means "after the current sample has been played |
| 826 |
|
|
for x ticks in this division, its volume will be set to 0". This |
| 827 |
|
|
implies that if x is 0, then you will not hear any of the sample. |
| 828 |
|
|
If you wish to insert "silence" in a pattern, it is better to use a |
| 829 |
|
|
"silence"-sample (see above) due to the lack of proper support for |
| 830 |
|
|
this effect. |
| 831 |
|
|
*/ |
| 832 |
|
✗ |
cptr->effect = EFFECT_E_NOTE_CUT; |
| 833 |
|
✗ |
cptr->cut_param = (effect & 0xF); |
| 834 |
|
✗ |
if(!cptr->cut_param) |
| 835 |
|
✗ |
cptr->volume = 0; |
| 836 |
|
|
break; |
| 837 |
|
|
|
| 838 |
|
|
default: |
| 839 |
|
|
|
| 840 |
|
|
break; |
| 841 |
|
|
} |
| 842 |
|
|
break; |
| 843 |
|
|
|
| 844 |
|
✗ |
case 0xF: |
| 845 |
|
|
/* |
| 846 |
|
|
[15]: Set speed |
| 847 |
|
|
Where [15][x][y] means "set speed to x*16+y". Though it is nowhere |
| 848 |
|
|
near that simple. Let z = x*16+y. Depending on what values z takes, |
| 849 |
|
|
different units of speed are set, there being two: ticks/division |
| 850 |
|
|
and beats/minute (though this one is only a label and not strictly |
| 851 |
|
|
true). If z=0, then what should technically happen is that the |
| 852 |
|
|
module stops, but in practice it is treated as if z=1, because |
| 853 |
|
|
there is already a method for stopping the module (running out of |
| 854 |
|
|
patterns). If z<=32, then it means "set ticks/division to z" |
| 855 |
|
|
otherwise it means "set beats/minute to z" (convention says that |
| 856 |
|
|
this should read "If z<32.." but there are some composers out there |
| 857 |
|
|
that defy conventions). Default values are 6 ticks/division, and |
| 858 |
|
|
125 beats/minute (4 divisions = 1 beat). The beats/minute tag is |
| 859 |
|
|
only meaningful for 6 ticks/division. To get a more accurate view |
| 860 |
|
|
of how things work, use the following formula: |
| 861 |
|
|
24 * beats/minute |
| 862 |
|
|
divisions/minute = ----------------- |
| 863 |
|
|
ticks/division |
| 864 |
|
|
Hence divisions/minute range from 24.75 to 6120, eg. to get a value |
| 865 |
|
|
of 2000 divisions/minute use 3 ticks/division and 250 beats/minute. |
| 866 |
|
|
If multiple "set speed" effects are performed in a single division, |
| 867 |
|
|
the ones on higher-numbered channels take precedence over the ones |
| 868 |
|
|
on lower-numbered channels. This effect has a large number of |
| 869 |
|
|
different implementations, but the one described here has the |
| 870 |
|
|
widest usage. |
| 871 |
|
|
*/ |
| 872 |
|
|
|
| 873 |
|
✗ |
if( (effect&0xFF) < 0x21 ) |
| 874 |
|
|
{ |
| 875 |
|
✗ |
if( effect&0xFF ) |
| 876 |
|
|
{ |
| 877 |
|
✗ |
mod->song.speed = effect&0xFF; |
| 878 |
|
✗ |
mod->patternticksaim = (long)mod->song.speed * ((mod->playrate * 5 ) / (((long)2 * (long)mod->bpm))); |
| 879 |
|
|
} |
| 880 |
|
|
} |
| 881 |
|
|
|
| 882 |
|
✗ |
if( (effect&0xFF) >= 0x21 ) |
| 883 |
|
|
{ |
| 884 |
|
|
/// HZ = 2 * BPM / 5 |
| 885 |
|
✗ |
mod->bpm = effect&0xFF; |
| 886 |
|
✗ |
mod->patternticksaim = (long)mod->song.speed * ((mod->playrate * 5 ) / (((long)2 * (long)mod->bpm))); |
| 887 |
|
|
} |
| 888 |
|
|
|
| 889 |
|
|
break; |
| 890 |
|
|
|
| 891 |
|
|
default: |
| 892 |
|
|
// Unsupported effect |
| 893 |
|
|
break; |
| 894 |
|
|
|
| 895 |
|
|
} |
| 896 |
|
|
|
| 897 |
|
|
} |
| 898 |
|
|
|
| 899 |
|
✗ |
static void workeffect( note * nptr, channel * cptr ) |
| 900 |
|
|
{ |
| 901 |
|
✗ |
switch(cptr->effect) |
| 902 |
|
|
{ |
| 903 |
|
✗ |
case EFFECT_ARPEGGIO: |
| 904 |
|
|
|
| 905 |
|
✗ |
if( cptr->parameffect ) |
| 906 |
|
|
{ |
| 907 |
|
✗ |
cptr->decalperiod = cptr->period - cptr->Arpperiods[cptr->ArpIndex]; |
| 908 |
|
|
|
| 909 |
|
✗ |
cptr->ArpIndex++; |
| 910 |
|
✗ |
if( cptr->ArpIndex>2 ) |
| 911 |
|
✗ |
cptr->ArpIndex = 0; |
| 912 |
|
|
} |
| 913 |
|
|
break; |
| 914 |
|
|
|
| 915 |
|
✗ |
case EFFECT_PORTAMENTO_UP: |
| 916 |
|
|
|
| 917 |
|
✗ |
if(cptr->period) |
| 918 |
|
|
{ |
| 919 |
|
✗ |
cptr->period -= cptr->parameffect; |
| 920 |
|
|
|
| 921 |
|
✗ |
if( cptr->period < 113 || cptr->period > 20000 ) |
| 922 |
|
✗ |
cptr->period = 113; |
| 923 |
|
|
} |
| 924 |
|
|
|
| 925 |
|
|
break; |
| 926 |
|
|
|
| 927 |
|
✗ |
case EFFECT_PORTAMENTO_DOWN: |
| 928 |
|
|
|
| 929 |
|
✗ |
if(cptr->period) |
| 930 |
|
|
{ |
| 931 |
|
✗ |
cptr->period += cptr->parameffect; |
| 932 |
|
|
|
| 933 |
|
✗ |
if( cptr->period > 20000 ) |
| 934 |
|
✗ |
cptr->period = 20000; |
| 935 |
|
|
} |
| 936 |
|
|
|
| 937 |
|
|
break; |
| 938 |
|
|
|
| 939 |
|
✗ |
case EFFECT_VOLSLIDE_TONEPORTA: |
| 940 |
|
|
case EFFECT_TONE_PORTAMENTO: |
| 941 |
|
|
|
| 942 |
|
✗ |
if( cptr->period && ( cptr->period != cptr->portaperiod ) && cptr->portaperiod ) |
| 943 |
|
|
{ |
| 944 |
|
✗ |
if( cptr->period > cptr->portaperiod ) |
| 945 |
|
|
{ |
| 946 |
|
✗ |
if( cptr->period - cptr->portaperiod >= cptr->portaspeed ) |
| 947 |
|
|
{ |
| 948 |
|
✗ |
cptr->period -= cptr->portaspeed; |
| 949 |
|
|
} |
| 950 |
|
|
else |
| 951 |
|
|
{ |
| 952 |
|
✗ |
cptr->period = cptr->portaperiod; |
| 953 |
|
|
} |
| 954 |
|
|
} |
| 955 |
|
|
else |
| 956 |
|
|
{ |
| 957 |
|
✗ |
if( cptr->portaperiod - cptr->period >= cptr->portaspeed ) |
| 958 |
|
|
{ |
| 959 |
|
✗ |
cptr->period += cptr->portaspeed; |
| 960 |
|
|
} |
| 961 |
|
|
else |
| 962 |
|
|
{ |
| 963 |
|
✗ |
cptr->period = cptr->portaperiod; |
| 964 |
|
|
} |
| 965 |
|
|
} |
| 966 |
|
|
|
| 967 |
|
✗ |
if( cptr->period == cptr->portaperiod ) |
| 968 |
|
|
{ |
| 969 |
|
|
// If the slide is over, don't let it to be retriggered. |
| 970 |
|
✗ |
cptr->portaperiod = 0; |
| 971 |
|
|
} |
| 972 |
|
|
} |
| 973 |
|
|
|
| 974 |
|
✗ |
if( cptr->effect == EFFECT_VOLSLIDE_TONEPORTA ) |
| 975 |
|
|
{ |
| 976 |
|
✗ |
if( cptr->volumeslide > 0x0F ) |
| 977 |
|
|
{ |
| 978 |
|
✗ |
cptr->volume = cptr->volume + (cptr->volumeslide>>4); |
| 979 |
|
|
|
| 980 |
|
✗ |
if(cptr->volume>63) |
| 981 |
|
✗ |
cptr->volume = 63; |
| 982 |
|
|
} |
| 983 |
|
|
else |
| 984 |
|
|
{ |
| 985 |
|
✗ |
cptr->volume = cptr->volume - (cptr->volumeslide); |
| 986 |
|
|
|
| 987 |
|
✗ |
if(cptr->volume>63) |
| 988 |
|
✗ |
cptr->volume=0; |
| 989 |
|
|
} |
| 990 |
|
|
} |
| 991 |
|
|
break; |
| 992 |
|
|
|
| 993 |
|
✗ |
case EFFECT_VOLSLIDE_VIBRATO: |
| 994 |
|
|
case EFFECT_VIBRATO: |
| 995 |
|
|
|
| 996 |
|
✗ |
cptr->vibraperiod = ( (cptr->vibraparam&0xF) * sintable[cptr->vibrapointeur&0x1F] )>>7; |
| 997 |
|
|
|
| 998 |
|
✗ |
if( cptr->vibrapointeur > 31 ) |
| 999 |
|
✗ |
cptr->vibraperiod = -cptr->vibraperiod; |
| 1000 |
|
|
|
| 1001 |
|
✗ |
cptr->vibrapointeur = (cptr->vibrapointeur+(((cptr->vibraparam>>4))&0xf)) & 0x3F; |
| 1002 |
|
|
|
| 1003 |
|
✗ |
if( cptr->effect == EFFECT_VOLSLIDE_VIBRATO ) |
| 1004 |
|
|
{ |
| 1005 |
|
✗ |
if( cptr->volumeslide > 0xF ) |
| 1006 |
|
|
{ |
| 1007 |
|
✗ |
cptr->volume = cptr->volume+(cptr->volumeslide>>4); |
| 1008 |
|
|
|
| 1009 |
|
✗ |
if( cptr->volume > 64 ) |
| 1010 |
|
✗ |
cptr->volume = 64; |
| 1011 |
|
|
} |
| 1012 |
|
|
else |
| 1013 |
|
|
{ |
| 1014 |
|
✗ |
cptr->volume = cptr->volume - cptr->volumeslide; |
| 1015 |
|
|
|
| 1016 |
|
✗ |
if( cptr->volume > 64 ) |
| 1017 |
|
✗ |
cptr->volume = 0; |
| 1018 |
|
|
} |
| 1019 |
|
|
} |
| 1020 |
|
|
|
| 1021 |
|
|
break; |
| 1022 |
|
|
|
| 1023 |
|
✗ |
case EFFECT_VOLUME_SLIDE: |
| 1024 |
|
|
|
| 1025 |
|
✗ |
if( cptr->volumeslide > 0xF ) |
| 1026 |
|
|
{ |
| 1027 |
|
✗ |
cptr->volume += (cptr->volumeslide>>4); |
| 1028 |
|
|
|
| 1029 |
|
✗ |
if( cptr->volume > 64 ) |
| 1030 |
|
✗ |
cptr->volume = 64; |
| 1031 |
|
|
} |
| 1032 |
|
|
else |
| 1033 |
|
|
{ |
| 1034 |
|
✗ |
cptr->volume -= (cptr->volumeslide&0xf); |
| 1035 |
|
|
|
| 1036 |
|
✗ |
if( cptr->volume > 64 ) |
| 1037 |
|
✗ |
cptr->volume = 0; |
| 1038 |
|
|
} |
| 1039 |
|
|
break; |
| 1040 |
|
|
|
| 1041 |
|
✗ |
case EFFECT_E_NOTE_CUT: |
| 1042 |
|
✗ |
if(cptr->cut_param) |
| 1043 |
|
✗ |
cptr->cut_param--; |
| 1044 |
|
|
|
| 1045 |
|
✗ |
if(!cptr->cut_param) |
| 1046 |
|
✗ |
cptr->volume = 0; |
| 1047 |
|
|
break; |
| 1048 |
|
|
|
| 1049 |
|
|
default: |
| 1050 |
|
|
break; |
| 1051 |
|
|
|
| 1052 |
|
|
} |
| 1053 |
|
|
|
| 1054 |
|
|
} |
| 1055 |
|
|
|
| 1056 |
|
|
/////////////////////////////////////////////////////////////////////////////////// |
| 1057 |
|
✗ |
bool jar_mod_init(jar_mod_context_t * modctx) |
| 1058 |
|
|
{ |
| 1059 |
|
|
muint i,j; |
| 1060 |
|
|
|
| 1061 |
|
✗ |
if( modctx ) |
| 1062 |
|
|
{ |
| 1063 |
|
|
memclear(modctx, 0, sizeof(jar_mod_context_t)); |
| 1064 |
|
✗ |
modctx->playrate = DEFAULT_SAMPLE_RATE; |
| 1065 |
|
✗ |
modctx->stereo = 1; |
| 1066 |
|
✗ |
modctx->stereo_separation = 1; |
| 1067 |
|
✗ |
modctx->bits = 16; |
| 1068 |
|
✗ |
modctx->filter = 1; |
| 1069 |
|
|
|
| 1070 |
|
✗ |
for(i=0; i < PERIOD_TABLE_LENGTH - 1; i++) |
| 1071 |
|
|
{ |
| 1072 |
|
✗ |
for(j=0; j < 8; j++) |
| 1073 |
|
|
{ |
| 1074 |
|
✗ |
modctx->fullperiod[(i*8) + j] = periodtable[i] - ((( periodtable[i] - periodtable[i+1] ) / 8) * j); |
| 1075 |
|
|
} |
| 1076 |
|
|
} |
| 1077 |
|
|
|
| 1078 |
|
|
return 1; |
| 1079 |
|
|
} |
| 1080 |
|
|
|
| 1081 |
|
|
return 0; |
| 1082 |
|
|
} |
| 1083 |
|
|
|
| 1084 |
|
✗ |
bool jar_mod_setcfg(jar_mod_context_t * modctx, int samplerate, int bits, int stereo, int stereo_separation, int filter) |
| 1085 |
|
|
{ |
| 1086 |
|
✗ |
if( modctx ) |
| 1087 |
|
|
{ |
| 1088 |
|
✗ |
modctx->playrate = samplerate; |
| 1089 |
|
|
|
| 1090 |
|
✗ |
if( stereo ) |
| 1091 |
|
✗ |
modctx->stereo = 1; |
| 1092 |
|
|
else |
| 1093 |
|
✗ |
modctx->stereo = 0; |
| 1094 |
|
|
|
| 1095 |
|
✗ |
if(stereo_separation < 4) |
| 1096 |
|
|
{ |
| 1097 |
|
✗ |
modctx->stereo_separation = stereo_separation; |
| 1098 |
|
|
} |
| 1099 |
|
|
|
| 1100 |
|
✗ |
if( bits == 8 || bits == 16 ) |
| 1101 |
|
✗ |
modctx->bits = bits; |
| 1102 |
|
|
else |
| 1103 |
|
✗ |
modctx->bits = 16; |
| 1104 |
|
|
|
| 1105 |
|
✗ |
if( filter ) |
| 1106 |
|
✗ |
modctx->filter = 1; |
| 1107 |
|
|
else |
| 1108 |
|
✗ |
modctx->filter = 0; |
| 1109 |
|
|
|
| 1110 |
|
✗ |
return 1; |
| 1111 |
|
|
} |
| 1112 |
|
|
|
| 1113 |
|
|
return 0; |
| 1114 |
|
|
} |
| 1115 |
|
|
|
| 1116 |
|
|
// make certain that mod_data stays in memory while playing |
| 1117 |
|
✗ |
static bool jar_mod_load( jar_mod_context_t * modctx, void * mod_data, int mod_data_size ) |
| 1118 |
|
|
{ |
| 1119 |
|
|
muint i, max; |
| 1120 |
|
|
unsigned short t; |
| 1121 |
|
|
sample *sptr; |
| 1122 |
|
|
unsigned char * modmemory,* endmodmemory; |
| 1123 |
|
|
|
| 1124 |
|
|
modmemory = (unsigned char *)mod_data; |
| 1125 |
|
✗ |
endmodmemory = modmemory + mod_data_size; |
| 1126 |
|
|
|
| 1127 |
|
|
|
| 1128 |
|
|
|
| 1129 |
|
✗ |
if(modmemory) |
| 1130 |
|
|
{ |
| 1131 |
|
✗ |
if( modctx ) |
| 1132 |
|
|
{ |
| 1133 |
|
✗ |
memcopy(&(modctx->song.title),modmemory,1084); |
| 1134 |
|
|
|
| 1135 |
|
|
i = 0; |
| 1136 |
|
✗ |
modctx->number_of_channels = 0; |
| 1137 |
|
✗ |
while(modlist[i].numberofchannels) |
| 1138 |
|
|
{ |
| 1139 |
|
✗ |
if(memcompare(modctx->song.signature,modlist[i].signature,4)) |
| 1140 |
|
|
{ |
| 1141 |
|
✗ |
modctx->number_of_channels = modlist[i].numberofchannels; |
| 1142 |
|
|
} |
| 1143 |
|
|
|
| 1144 |
|
✗ |
i++; |
| 1145 |
|
|
} |
| 1146 |
|
|
|
| 1147 |
|
✗ |
if( !modctx->number_of_channels ) |
| 1148 |
|
|
{ |
| 1149 |
|
|
// 15 Samples modules support |
| 1150 |
|
|
// Shift the whole datas to make it look likes a standard 4 channels mod. |
| 1151 |
|
✗ |
memcopy(&(modctx->song.signature), "M.K.", 4); |
| 1152 |
|
✗ |
memcopy(&(modctx->song.length), &(modctx->song.samples[15]), 130); |
| 1153 |
|
|
memclear(&(modctx->song.samples[15]), 0, 480); |
| 1154 |
|
✗ |
modmemory += 600; |
| 1155 |
|
✗ |
modctx->number_of_channels = 4; |
| 1156 |
|
|
} |
| 1157 |
|
|
else |
| 1158 |
|
|
{ |
| 1159 |
|
✗ |
modmemory += 1084; |
| 1160 |
|
|
} |
| 1161 |
|
|
|
| 1162 |
|
✗ |
if( modmemory >= endmodmemory ) |
| 1163 |
|
|
return 0; // End passed ? - Probably a bad file ! |
| 1164 |
|
|
|
| 1165 |
|
|
// Patterns loading |
| 1166 |
|
✗ |
for (i = max = 0; i < 128; i++) |
| 1167 |
|
|
{ |
| 1168 |
|
✗ |
while (max <= modctx->song.patterntable[i]) |
| 1169 |
|
|
{ |
| 1170 |
|
✗ |
modctx->patterndata[max] = (note*)modmemory; |
| 1171 |
|
✗ |
modmemory += (256*modctx->number_of_channels); |
| 1172 |
|
✗ |
max++; |
| 1173 |
|
|
|
| 1174 |
|
✗ |
if( modmemory >= endmodmemory ) |
| 1175 |
|
|
return 0; // End passed ? - Probably a bad file ! |
| 1176 |
|
|
} |
| 1177 |
|
|
} |
| 1178 |
|
|
|
| 1179 |
|
✗ |
for (i = 0; i < 31; i++) |
| 1180 |
|
✗ |
modctx->sampledata[i]=0; |
| 1181 |
|
|
|
| 1182 |
|
|
// Samples loading |
| 1183 |
|
✗ |
for (i = 0, sptr = modctx->song.samples; i <31; i++, sptr++) |
| 1184 |
|
|
{ |
| 1185 |
|
✗ |
t= (sptr->length &0xFF00)>>8 | (sptr->length &0xFF)<<8; |
| 1186 |
|
✗ |
sptr->length = t*2; |
| 1187 |
|
|
|
| 1188 |
|
✗ |
t= (sptr->reppnt &0xFF00)>>8 | (sptr->reppnt &0xFF)<<8; |
| 1189 |
|
✗ |
sptr->reppnt = t*2; |
| 1190 |
|
|
|
| 1191 |
|
✗ |
t= (sptr->replen &0xFF00)>>8 | (sptr->replen &0xFF)<<8; |
| 1192 |
|
✗ |
sptr->replen = t*2; |
| 1193 |
|
|
|
| 1194 |
|
|
|
| 1195 |
|
✗ |
if (sptr->length == 0) continue; |
| 1196 |
|
|
|
| 1197 |
|
✗ |
modctx->sampledata[i] = (char*)modmemory; |
| 1198 |
|
✗ |
modmemory += sptr->length; |
| 1199 |
|
|
|
| 1200 |
|
✗ |
if (sptr->replen + sptr->reppnt > sptr->length) |
| 1201 |
|
✗ |
sptr->replen = sptr->length - sptr->reppnt; |
| 1202 |
|
|
|
| 1203 |
|
✗ |
if( modmemory > endmodmemory ) |
| 1204 |
|
|
return 0; // End passed ? - Probably a bad file ! |
| 1205 |
|
|
} |
| 1206 |
|
|
|
| 1207 |
|
|
// States init |
| 1208 |
|
|
|
| 1209 |
|
✗ |
modctx->tablepos = 0; |
| 1210 |
|
✗ |
modctx->patternpos = 0; |
| 1211 |
|
✗ |
modctx->song.speed = 6; |
| 1212 |
|
✗ |
modctx->bpm = 125; |
| 1213 |
|
✗ |
modctx->samplenb = 0; |
| 1214 |
|
|
|
| 1215 |
|
✗ |
modctx->patternticks = (((long)modctx->song.speed * modctx->playrate * 5)/ (2 * modctx->bpm)) + 1; |
| 1216 |
|
✗ |
modctx->patternticksaim = ((long)modctx->song.speed * modctx->playrate * 5) / (2 * modctx->bpm); |
| 1217 |
|
|
|
| 1218 |
|
✗ |
modctx->sampleticksconst = 3546894UL / modctx->playrate; //8448*428/playrate; |
| 1219 |
|
|
|
| 1220 |
|
✗ |
for(i=0; i < modctx->number_of_channels; i++) |
| 1221 |
|
|
{ |
| 1222 |
|
✗ |
modctx->channels[i].volume = 0; |
| 1223 |
|
✗ |
modctx->channels[i].period = 0; |
| 1224 |
|
|
} |
| 1225 |
|
|
|
| 1226 |
|
✗ |
modctx->mod_loaded = 1; |
| 1227 |
|
|
|
| 1228 |
|
✗ |
return 1; |
| 1229 |
|
|
} |
| 1230 |
|
|
} |
| 1231 |
|
|
|
| 1232 |
|
|
return 0; |
| 1233 |
|
|
} |
| 1234 |
|
|
|
| 1235 |
|
✗ |
void jar_mod_fillbuffer( jar_mod_context_t * modctx, short * outbuffer, unsigned long nbsample, jar_mod_tracker_buffer_state * trkbuf ) |
| 1236 |
|
|
{ |
| 1237 |
|
|
unsigned long i, j; |
| 1238 |
|
|
unsigned long k; |
| 1239 |
|
|
unsigned char c; |
| 1240 |
|
|
unsigned int state_remaining_steps; |
| 1241 |
|
|
int l,r; |
| 1242 |
|
|
int ll,lr; |
| 1243 |
|
|
int tl,tr; |
| 1244 |
|
|
short finalperiod; |
| 1245 |
|
|
note *nptr; |
| 1246 |
|
|
channel *cptr; |
| 1247 |
|
|
|
| 1248 |
|
✗ |
if( modctx && outbuffer ) |
| 1249 |
|
|
{ |
| 1250 |
|
✗ |
if(modctx->mod_loaded) |
| 1251 |
|
|
{ |
| 1252 |
|
|
state_remaining_steps = 0; |
| 1253 |
|
|
|
| 1254 |
|
✗ |
if( trkbuf ) |
| 1255 |
|
|
{ |
| 1256 |
|
✗ |
trkbuf->cur_rd_index = 0; |
| 1257 |
|
|
|
| 1258 |
|
✗ |
memcopy(trkbuf->name,modctx->song.title,sizeof(modctx->song.title)); |
| 1259 |
|
|
|
| 1260 |
|
✗ |
for(i=0;i<31;i++) |
| 1261 |
|
|
{ |
| 1262 |
|
✗ |
memcopy(trkbuf->instruments[i].name,modctx->song.samples[i].name,sizeof(trkbuf->instruments[i].name)); |
| 1263 |
|
|
} |
| 1264 |
|
|
} |
| 1265 |
|
|
|
| 1266 |
|
✗ |
ll = modctx->last_l_sample; |
| 1267 |
|
✗ |
lr = modctx->last_r_sample; |
| 1268 |
|
|
|
| 1269 |
|
✗ |
for (i = 0; i < nbsample; i++) |
| 1270 |
|
|
{ |
| 1271 |
|
|
//--------------------------------------- |
| 1272 |
|
✗ |
if( modctx->patternticks++ > modctx->patternticksaim ) |
| 1273 |
|
|
{ |
| 1274 |
|
✗ |
if( !modctx->patterndelay ) |
| 1275 |
|
|
{ |
| 1276 |
|
✗ |
nptr = modctx->patterndata[modctx->song.patterntable[modctx->tablepos]]; |
| 1277 |
|
✗ |
nptr = nptr + modctx->patternpos; |
| 1278 |
|
✗ |
cptr = modctx->channels; |
| 1279 |
|
|
|
| 1280 |
|
✗ |
modctx->patternticks = 0; |
| 1281 |
|
✗ |
modctx->patterntickse = 0; |
| 1282 |
|
|
|
| 1283 |
|
✗ |
for(c=0;c<modctx->number_of_channels;c++) |
| 1284 |
|
|
{ |
| 1285 |
|
✗ |
worknote((note*)(nptr+c), (channel*)(cptr+c),(char)(c+1),modctx); |
| 1286 |
|
|
} |
| 1287 |
|
|
|
| 1288 |
|
✗ |
if( !modctx->jump_loop_effect ) |
| 1289 |
|
✗ |
modctx->patternpos += modctx->number_of_channels; |
| 1290 |
|
|
else |
| 1291 |
|
✗ |
modctx->jump_loop_effect = 0; |
| 1292 |
|
|
|
| 1293 |
|
✗ |
if( modctx->patternpos == 64*modctx->number_of_channels ) |
| 1294 |
|
|
{ |
| 1295 |
|
✗ |
modctx->tablepos++; |
| 1296 |
|
✗ |
modctx->patternpos = 0; |
| 1297 |
|
✗ |
if(modctx->tablepos >= modctx->song.length) |
| 1298 |
|
|
{ |
| 1299 |
|
✗ |
modctx->tablepos = 0; |
| 1300 |
|
✗ |
modctx->loopcount++; // count next loop |
| 1301 |
|
|
} |
| 1302 |
|
|
} |
| 1303 |
|
|
} |
| 1304 |
|
|
else |
| 1305 |
|
|
{ |
| 1306 |
|
✗ |
modctx->patterndelay--; |
| 1307 |
|
✗ |
modctx->patternticks = 0; |
| 1308 |
|
✗ |
modctx->patterntickse = 0; |
| 1309 |
|
|
} |
| 1310 |
|
|
|
| 1311 |
|
|
} |
| 1312 |
|
|
|
| 1313 |
|
✗ |
if( modctx->patterntickse++ > (modctx->patternticksaim/modctx->song.speed) ) |
| 1314 |
|
|
{ |
| 1315 |
|
✗ |
nptr = modctx->patterndata[modctx->song.patterntable[modctx->tablepos]]; |
| 1316 |
|
✗ |
nptr = nptr + modctx->patternpos; |
| 1317 |
|
✗ |
cptr = modctx->channels; |
| 1318 |
|
|
|
| 1319 |
|
✗ |
for(c=0;c<modctx->number_of_channels;c++) |
| 1320 |
|
|
{ |
| 1321 |
|
✗ |
workeffect(nptr+c, cptr+c); |
| 1322 |
|
|
} |
| 1323 |
|
|
|
| 1324 |
|
✗ |
modctx->patterntickse = 0; |
| 1325 |
|
|
} |
| 1326 |
|
|
|
| 1327 |
|
|
//--------------------------------------- |
| 1328 |
|
|
|
| 1329 |
|
✗ |
if( trkbuf && !state_remaining_steps ) |
| 1330 |
|
|
{ |
| 1331 |
|
✗ |
if( trkbuf->nb_of_state < trkbuf->nb_max_of_state ) |
| 1332 |
|
|
{ |
| 1333 |
|
✗ |
memclear(&trkbuf->track_state_buf[trkbuf->nb_of_state], 0, sizeof(tracker_state)); |
| 1334 |
|
|
} |
| 1335 |
|
|
} |
| 1336 |
|
|
|
| 1337 |
|
|
l=0; |
| 1338 |
|
|
r=0; |
| 1339 |
|
|
|
| 1340 |
|
✗ |
for(j =0, cptr = modctx->channels; j < modctx->number_of_channels ; j++, cptr++) |
| 1341 |
|
|
{ |
| 1342 |
|
✗ |
if( cptr->period != 0 ) |
| 1343 |
|
|
{ |
| 1344 |
|
✗ |
finalperiod = cptr->period - cptr->decalperiod - cptr->vibraperiod; |
| 1345 |
|
✗ |
if( finalperiod ) |
| 1346 |
|
|
{ |
| 1347 |
|
✗ |
cptr->samppos += ( (modctx->sampleticksconst<<10) / finalperiod ); |
| 1348 |
|
|
} |
| 1349 |
|
|
|
| 1350 |
|
✗ |
cptr->ticks++; |
| 1351 |
|
|
|
| 1352 |
|
✗ |
if( cptr->replen<=2 ) |
| 1353 |
|
|
{ |
| 1354 |
|
✗ |
if( (cptr->samppos>>10) >= (cptr->length) ) |
| 1355 |
|
|
{ |
| 1356 |
|
✗ |
cptr->length = 0; |
| 1357 |
|
✗ |
cptr->reppnt = 0; |
| 1358 |
|
|
|
| 1359 |
|
|
if( cptr->length ) |
| 1360 |
|
|
cptr->samppos = cptr->samppos % (((unsigned long)cptr->length)<<10); |
| 1361 |
|
|
else |
| 1362 |
|
✗ |
cptr->samppos = 0; |
| 1363 |
|
|
} |
| 1364 |
|
|
} |
| 1365 |
|
|
else |
| 1366 |
|
|
{ |
| 1367 |
|
✗ |
if( (cptr->samppos>>10) >= (unsigned long)(cptr->replen+cptr->reppnt) ) |
| 1368 |
|
|
{ |
| 1369 |
|
✗ |
cptr->samppos = ((unsigned long)(cptr->reppnt)<<10) + (cptr->samppos % ((unsigned long)(cptr->replen+cptr->reppnt)<<10)); |
| 1370 |
|
|
} |
| 1371 |
|
|
} |
| 1372 |
|
|
|
| 1373 |
|
✗ |
k = cptr->samppos >> 10; |
| 1374 |
|
|
|
| 1375 |
|
✗ |
if( cptr->sampdata!=0 && ( ((j&3)==1) || ((j&3)==2) ) ) |
| 1376 |
|
|
{ |
| 1377 |
|
✗ |
r += ( cptr->sampdata[k] * cptr->volume ); |
| 1378 |
|
|
} |
| 1379 |
|
|
|
| 1380 |
|
✗ |
if( cptr->sampdata!=0 && ( ((j&3)==0) || ((j&3)==3) ) ) |
| 1381 |
|
|
{ |
| 1382 |
|
✗ |
l += ( cptr->sampdata[k] * cptr->volume ); |
| 1383 |
|
|
} |
| 1384 |
|
|
|
| 1385 |
|
✗ |
if( trkbuf && !state_remaining_steps ) |
| 1386 |
|
|
{ |
| 1387 |
|
✗ |
if( trkbuf->nb_of_state < trkbuf->nb_max_of_state ) |
| 1388 |
|
|
{ |
| 1389 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].number_of_tracks = modctx->number_of_channels; |
| 1390 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].buf_index = i; |
| 1391 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].cur_pattern = modctx->song.patterntable[modctx->tablepos]; |
| 1392 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].cur_pattern_pos = modctx->patternpos / modctx->number_of_channels; |
| 1393 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].cur_pattern_table_pos = modctx->tablepos; |
| 1394 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].bpm = modctx->bpm; |
| 1395 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].speed = modctx->song.speed; |
| 1396 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].tracks[j].cur_effect = cptr->effect_code; |
| 1397 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].tracks[j].cur_parameffect = cptr->parameffect; |
| 1398 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].tracks[j].cur_period = finalperiod; |
| 1399 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].tracks[j].cur_volume = cptr->volume; |
| 1400 |
|
✗ |
trkbuf->track_state_buf[trkbuf->nb_of_state].tracks[j].instrument_number = (unsigned char)cptr->sampnum; |
| 1401 |
|
|
} |
| 1402 |
|
|
} |
| 1403 |
|
|
} |
| 1404 |
|
|
} |
| 1405 |
|
|
|
| 1406 |
|
✗ |
if( trkbuf && !state_remaining_steps ) |
| 1407 |
|
|
{ |
| 1408 |
|
✗ |
state_remaining_steps = trkbuf->sample_step; |
| 1409 |
|
|
|
| 1410 |
|
✗ |
if(trkbuf->nb_of_state < trkbuf->nb_max_of_state) |
| 1411 |
|
✗ |
trkbuf->nb_of_state++; |
| 1412 |
|
|
} |
| 1413 |
|
|
else |
| 1414 |
|
|
{ |
| 1415 |
|
✗ |
state_remaining_steps--; |
| 1416 |
|
|
} |
| 1417 |
|
|
|
| 1418 |
|
✗ |
tl = (short)l; |
| 1419 |
|
✗ |
tr = (short)r; |
| 1420 |
|
|
|
| 1421 |
|
✗ |
if ( modctx->filter ) |
| 1422 |
|
|
{ |
| 1423 |
|
|
// Filter |
| 1424 |
|
✗ |
l = (l+ll)>>1; |
| 1425 |
|
✗ |
r = (r+lr)>>1; |
| 1426 |
|
|
} |
| 1427 |
|
|
|
| 1428 |
|
✗ |
if ( modctx->stereo_separation == 1 ) |
| 1429 |
|
|
{ |
| 1430 |
|
|
// Left & Right Stereo panning |
| 1431 |
|
✗ |
l = (l+(r>>1)); |
| 1432 |
|
✗ |
r = (r+(l>>1)); |
| 1433 |
|
|
} |
| 1434 |
|
|
|
| 1435 |
|
|
// Level limitation |
| 1436 |
|
|
if( l > 32767 ) l = 32767; |
| 1437 |
|
|
if( l < -32768 ) l = -32768; |
| 1438 |
|
|
if( r > 32767 ) r = 32767; |
| 1439 |
|
|
if( r < -32768 ) r = -32768; |
| 1440 |
|
|
|
| 1441 |
|
|
// Store the final sample. |
| 1442 |
|
✗ |
outbuffer[(i*2)] = l; |
| 1443 |
|
✗ |
outbuffer[(i*2)+1] = r; |
| 1444 |
|
|
|
| 1445 |
|
|
ll = tl; |
| 1446 |
|
|
lr = tr; |
| 1447 |
|
|
|
| 1448 |
|
|
} |
| 1449 |
|
|
|
| 1450 |
|
✗ |
modctx->last_l_sample = ll; |
| 1451 |
|
✗ |
modctx->last_r_sample = lr; |
| 1452 |
|
|
|
| 1453 |
|
✗ |
modctx->samplenb = modctx->samplenb+nbsample; |
| 1454 |
|
|
} |
| 1455 |
|
|
else |
| 1456 |
|
|
{ |
| 1457 |
|
✗ |
for (i = 0; i < nbsample; i++) |
| 1458 |
|
|
{ |
| 1459 |
|
|
// Mod not loaded. Return blank buffer. |
| 1460 |
|
✗ |
outbuffer[(i*2)] = 0; |
| 1461 |
|
✗ |
outbuffer[(i*2)+1] = 0; |
| 1462 |
|
|
} |
| 1463 |
|
|
|
| 1464 |
|
✗ |
if(trkbuf) |
| 1465 |
|
|
{ |
| 1466 |
|
✗ |
trkbuf->nb_of_state = 0; |
| 1467 |
|
✗ |
trkbuf->cur_rd_index = 0; |
| 1468 |
|
✗ |
trkbuf->name[0] = 0; |
| 1469 |
|
✗ |
memclear(trkbuf->track_state_buf, 0, sizeof(tracker_state) * trkbuf->nb_max_of_state); |
| 1470 |
|
✗ |
memclear(trkbuf->instruments, 0, sizeof(trkbuf->instruments)); |
| 1471 |
|
|
} |
| 1472 |
|
|
} |
| 1473 |
|
|
} |
| 1474 |
|
|
} |
| 1475 |
|
|
|
| 1476 |
|
|
//resets internals for mod context |
| 1477 |
|
✗ |
static bool jar_mod_reset( jar_mod_context_t * modctx) |
| 1478 |
|
|
{ |
| 1479 |
|
✗ |
if(modctx) |
| 1480 |
|
|
{ |
| 1481 |
|
✗ |
memclear(&modctx->song, 0, sizeof(modctx->song)); |
| 1482 |
|
✗ |
memclear(&modctx->sampledata, 0, sizeof(modctx->sampledata)); |
| 1483 |
|
✗ |
memclear(&modctx->patterndata, 0, sizeof(modctx->patterndata)); |
| 1484 |
|
✗ |
modctx->tablepos = 0; |
| 1485 |
|
✗ |
modctx->patternpos = 0; |
| 1486 |
|
✗ |
modctx->patterndelay = 0; |
| 1487 |
|
✗ |
modctx->jump_loop_effect = 0; |
| 1488 |
|
✗ |
modctx->bpm = 0; |
| 1489 |
|
✗ |
modctx->patternticks = 0; |
| 1490 |
|
✗ |
modctx->patterntickse = 0; |
| 1491 |
|
✗ |
modctx->patternticksaim = 0; |
| 1492 |
|
✗ |
modctx->sampleticksconst = 0; |
| 1493 |
|
✗ |
modctx->samplenb = 0; |
| 1494 |
|
✗ |
memclear(modctx->channels, 0, sizeof(modctx->channels)); |
| 1495 |
|
✗ |
modctx->number_of_channels = 0; |
| 1496 |
|
✗ |
modctx->mod_loaded = 0; |
| 1497 |
|
✗ |
modctx->last_r_sample = 0; |
| 1498 |
|
✗ |
modctx->last_l_sample = 0; |
| 1499 |
|
|
|
| 1500 |
|
✗ |
return jar_mod_init(modctx); |
| 1501 |
|
|
} |
| 1502 |
|
|
return 0; |
| 1503 |
|
|
} |
| 1504 |
|
|
|
| 1505 |
|
✗ |
void jar_mod_unload( jar_mod_context_t * modctx) |
| 1506 |
|
|
{ |
| 1507 |
|
✗ |
if(modctx) |
| 1508 |
|
|
{ |
| 1509 |
|
✗ |
if(modctx->modfile) |
| 1510 |
|
|
{ |
| 1511 |
|
✗ |
JARMOD_FREE(modctx->modfile); |
| 1512 |
|
✗ |
modctx->modfile = 0; |
| 1513 |
|
✗ |
modctx->modfilesize = 0; |
| 1514 |
|
✗ |
modctx->loopcount = 0; |
| 1515 |
|
|
} |
| 1516 |
|
✗ |
jar_mod_reset(modctx); |
| 1517 |
|
|
} |
| 1518 |
|
|
} |
| 1519 |
|
|
|
| 1520 |
|
✗ |
mulong jar_mod_load_file(jar_mod_context_t * modctx, const char* filename) |
| 1521 |
|
|
{ |
| 1522 |
|
|
mulong fsize = 0; |
| 1523 |
|
✗ |
if(modctx->modfile) |
| 1524 |
|
|
{ |
| 1525 |
|
✗ |
JARMOD_FREE(modctx->modfile); |
| 1526 |
|
✗ |
modctx->modfile = 0; |
| 1527 |
|
|
} |
| 1528 |
|
|
|
| 1529 |
|
✗ |
FILE *f = fopen(filename, "rb"); |
| 1530 |
|
✗ |
if(f) |
| 1531 |
|
|
{ |
| 1532 |
|
✗ |
fseek(f,0,SEEK_END); |
| 1533 |
|
✗ |
fsize = ftell(f); |
| 1534 |
|
✗ |
fseek(f,0,SEEK_SET); |
| 1535 |
|
|
|
| 1536 |
|
✗ |
if(fsize && fsize < 32*1024*1024) |
| 1537 |
|
|
{ |
| 1538 |
|
✗ |
modctx->modfile = JARMOD_MALLOC(fsize); |
| 1539 |
|
✗ |
modctx->modfilesize = fsize; |
| 1540 |
|
|
memset(modctx->modfile, 0, fsize); |
| 1541 |
|
|
fread(modctx->modfile, fsize, 1, f); |
| 1542 |
|
✗ |
fclose(f); |
| 1543 |
|
|
|
| 1544 |
|
✗ |
if(!jar_mod_load(modctx, (void*)modctx->modfile, fsize)) fsize = 0; |
| 1545 |
|
|
} else fsize = 0; |
| 1546 |
|
|
} |
| 1547 |
|
✗ |
return fsize; |
| 1548 |
|
|
} |
| 1549 |
|
|
|
| 1550 |
|
✗ |
mulong jar_mod_current_samples(jar_mod_context_t * modctx) |
| 1551 |
|
|
{ |
| 1552 |
|
✗ |
if(modctx) |
| 1553 |
|
✗ |
return modctx->samplenb; |
| 1554 |
|
|
|
| 1555 |
|
|
return 0; |
| 1556 |
|
|
} |
| 1557 |
|
|
|
| 1558 |
|
|
// Works, however it is very slow, this data should be cached to ensure it is run only once per file |
| 1559 |
|
✗ |
mulong jar_mod_max_samples(jar_mod_context_t * ctx) |
| 1560 |
|
|
{ |
| 1561 |
|
|
mint buff[2]; |
| 1562 |
|
|
mulong len; |
| 1563 |
|
✗ |
mulong lastcount = ctx->loopcount; |
| 1564 |
|
|
|
| 1565 |
|
✗ |
while(ctx->loopcount <= lastcount) |
| 1566 |
|
✗ |
jar_mod_fillbuffer(ctx, buff, 1, 0); |
| 1567 |
|
|
|
| 1568 |
|
✗ |
len = ctx->samplenb; |
| 1569 |
|
✗ |
jar_mod_seek_start(ctx); |
| 1570 |
|
|
|
| 1571 |
|
✗ |
return len; |
| 1572 |
|
|
} |
| 1573 |
|
|
|
| 1574 |
|
|
// move seek_val to sample index, 0 -> jar_mod_max_samples is the range |
| 1575 |
|
✗ |
void jar_mod_seek_start(jar_mod_context_t * ctx) |
| 1576 |
|
|
{ |
| 1577 |
|
✗ |
if(ctx && ctx->modfile) |
| 1578 |
|
|
{ |
| 1579 |
|
|
muchar* ftmp = ctx->modfile; |
| 1580 |
|
✗ |
mulong stmp = ctx->modfilesize; |
| 1581 |
|
✗ |
muint lcnt = ctx->loopcount; |
| 1582 |
|
|
|
| 1583 |
|
✗ |
if(jar_mod_reset(ctx)){ |
| 1584 |
|
✗ |
jar_mod_load(ctx, ftmp, stmp); |
| 1585 |
|
✗ |
ctx->modfile = ftmp; |
| 1586 |
|
✗ |
ctx->modfilesize = stmp; |
| 1587 |
|
✗ |
ctx->loopcount = lcnt; |
| 1588 |
|
|
} |
| 1589 |
|
|
} |
| 1590 |
|
|
} |
| 1591 |
|
|
|
| 1592 |
|
|
#endif // end of JAR_MOD_IMPLEMENTATION |
| 1593 |
|
|
//------------------------------------------------------------------------------- |
| 1594 |
|
|
|
| 1595 |
|
|
|
| 1596 |
|
|
#endif //end of header file |
| 1597 |
|
|
|