2 terminatorX - realtime audio scratching software
3 Copyright (C) 1999, 2000 Alexander König
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 Description: Header to tX_vtt.cc
23 08 Dec 1999 - added audiofile support
39 #include "tX_vttgui.h"
43 #include "tX_audiofile.h"
44 #include "tX_seqpar.h"
46 #include "tX_ladspa.h"
52 #define EC_MAX_BUFFER 256000
54 #define CONTROL_NOTHING 0
55 #define CONTROL_SCRATCH 1
56 #define CONTROL_VOLUME 2
57 #define CONTROL_CUTOFF 3
58 #define CONTROL_FEEDBACK 4
60 #define NEED_FADE_OUT 0
61 #define NEED_FADE_IN 1
63 #define SAMPLE_MAX 32760.0
64 #define SAMPLE_BORDER 30000.0
71 static int vtt_amount;
72 static list <vtt_class *> main_list;
73 static list <vtt_class *> render_list;
75 static f_prec *mix_buffer;
76 static f_prec *mix_buffer_end;
78 static int16_t *mix_out_buffer;
79 static f_prec mix_max_l;
80 static f_prec mix_max_r;
81 static int samples_in_mix_buffer;
82 static pthread_mutex_t render_lock;
83 static pthread_mutex_t main_lock;
85 static f_prec master_volume;
86 static f_prec res_master_volume;
87 static f_prec vol_channel_adjust;
89 static f_prec saturate_fac;
90 static int do_saturate;
92 static vtt_class * sync_master;
93 static int master_triggered;
94 static int master_triggered_at;
95 static vtt_class * focused_vtt;
101 /* main object vars */
102 char name[256]; // Turntable's name
103 char filename[PATH_MAX]; // The corresponding audiofile
121 int16_t *buffer; // Actual audio data
122 int samples_in_buffer; // No. of samples in audio data
125 f_prec *output_buffer;
126 f_prec *end_of_outputbuffer;
127 f_prec samples_in_outputbuffer;
128 f_prec inv_samples_in_outputbuffer;
130 /* main playback vars */
131 f_prec rel_volume; // The (user-selected) relative volume
132 f_prec res_volume; // The resulting volume
136 f_prec rel_pitch; // The (user-selected) relative pitch
140 f_prec pan; // The logical pan value -1 left, 0 center, 1 right
141 f_prec res_volume_left;
142 f_prec res_volume_right;
164 /* input control vars */
168 /* seq par mapping for x/y axis */
187 f_prec ec_buffer[EC_MAX_BUFFER];
188 f_prec *ec_output_buffer;
193 f_prec ec_res_length;
196 f_prec ec_volume_left;
197 f_prec ec_volume_right;
199 /* sequenceable parameters */
200 tX_seqpar_vtt_speed sp_speed;
201 tX_seqpar_vtt_volume sp_volume;
202 tX_seqpar_vtt_pitch sp_pitch;
203 tX_seqpar_vtt_pan sp_pan;
204 tX_seqpar_vtt_trigger sp_trigger;
205 tX_seqpar_vtt_loop sp_loop;
206 tX_seqpar_vtt_sync_client sp_sync_client;
207 tX_seqpar_vtt_sync_cycles sp_sync_cycles;
208 tX_seqpar_vtt_lp_enable sp_lp_enable;
209 tX_seqpar_vtt_lp_gain sp_lp_gain;
210 tX_seqpar_vtt_lp_reso sp_lp_reso;
211 tX_seqpar_vtt_lp_freq sp_lp_freq;
212 tX_seqpar_vtt_ec_enable sp_ec_enable;
213 tX_seqpar_vtt_ec_length sp_ec_length;
214 tX_seqpar_vtt_ec_feedback sp_ec_feedback;
215 tX_seqpar_vtt_ec_pan sp_ec_pan;
216 tX_seqpar_vtt_mute sp_mute;
217 tX_seqpar_spin sp_spin;
219 tx_audiofile *audiofile;
221 list <vtt_fx *> fx_list;
228 /* Parameter setup methods */
229 void set_name(char *);
231 void set_file_data(char *, int16_t *, int);
233 int set_output_buffer_size(int);
235 void set_volume(f_prec);
236 void recalc_volume();
238 void set_pan(f_prec);
240 void set_pitch(f_prec);
243 void set_autotrigger(int);
248 void set_controls(int, int);
249 void set_y_input_parameter(tX_seqpar *);
250 void set_x_input_parameter(tX_seqpar *);
252 void lp_set_enable(int);
253 void lp_set_gain(f_prec);
254 void lp_set_reso(f_prec);
255 void lp_set_freq(f_prec);
256 void lp_setup(f_prec, f_prec, f_prec);
258 void ec_set_enable(int);
259 void ec_set_length(f_prec);
260 void ec_set_feedback(f_prec);
261 void ec_set_pan(f_prec);
262 void ec_clear_buffer();
264 void set_sync_master(int);
265 void set_sync_client(int, int);
266 void set_sync_client_ug(int, int); // and update gui
268 void set_scratch(int);
269 void xy_input(f_prec, f_prec);
270 void handle_input(int, f_prec);
272 vtt_fx_ladspa * add_effect(LADSPA_Plugin *);
276 void forward_turntable();
278 static int16_t *render_all_turntables();
279 static void forward_all_turntables();
281 static int set_mix_buffer_size(int);
282 static void set_master_volume(f_prec);
283 static void set_master_pitch(f_prec);
284 static void enable_saturate(int);
285 static void focus_no(int);
286 static void focus_next();
287 static void unfocus();
299 static int load_all_10(FILE *, char *fname); /* fname is for display only*/
300 static int load_all_11(FILE *, char *fname); /* fname is for display only*/
301 static int load_all_12(FILE *, char *fname); /* fname is for display only*/
302 static int load_all_13(FILE *, char *fname); /* fname is for display only*/
303 static int save_all(FILE *);
304 int load_file(char *name);
306 void render_scratch();
310 void effect_up(vtt_fx *effect);
311 void effect_down(vtt_fx *effect);
312 void effect_remove(vtt_fx_ladspa *effect);