cinelerra-5.1/cinelerra/pluginlv2.C

   1 #ifdef HAVE_LV2
   2
   3 #include "bctrace.h"
   4 #include "bcwindowbase.h"
   5 #include "pluginlv2.h"
   6 #include "samples.h"
   7
   8 #include <sys/shm.h>
   9 #include <sys/mman.h>
  10
  11 PluginLV2::PluginLV2()
  12 {
  13         shm_bfr = 0;
  14         use_shm = 1;
  15         shmid = -1;
  16         in_buffers = 0;   iport = 0;
  17         out_buffers = 0;  oport = 0;
  18         nb_inputs = 0;
  19         nb_outputs = 0;
  20         max_bufsz = 0;
  21         ui_features = 0;
  22
  23         world = 0;
  24         lilv = 0;
  25         lilv_uis = 0;
  26         inst = 0;
  27         sinst = 0;
  28         ui_host = 0;
  29
  30         lv2_InputPort = 0;
  31         lv2_OutputPort = 0;
  32         lv2_AudioPort = 0;
  33         lv2_ControlPort = 0;
  34         lv2_CVPort = 0;
  35         lv2_Optional = 0;
  36         atom_AtomPort = 0;
  37         atom_Sequence = 0;
  38         powerOf2BlockLength = 0;
  39         fixedBlockLength = 0;
  40         boundedBlockLength = 0;
  41         seq_out = 0;
  42 }
  43
  44 PluginLV2::~PluginLV2()
  45 {
  46         reset_lv2();
  47         if( world )     lilv_world_free(world);
  48 }
  49
  50 void PluginLV2::reset_lv2()
  51 {
  52         if( inst ) lilv_instance_deactivate(inst);
  53         lilv_instance_free(inst);             inst = 0;
  54         lilv_uis_free(lilv_uis);              lilv_uis = 0;
  55
  56         lilv_node_free(lv2_InputPort);        lv2_InputPort = 0;
  57         lilv_node_free(lv2_OutputPort);       lv2_OutputPort = 0;
  58         lilv_node_free(lv2_AudioPort);        lv2_AudioPort = 0;
  59         lilv_node_free(lv2_ControlPort);      lv2_ControlPort = 0;
  60         lilv_node_free(lv2_CVPort);           lv2_CVPort = 0;
  61
  62         lilv_node_free(lv2_Optional);         lv2_Optional = 0;
  63         lilv_node_free(atom_AtomPort);        atom_AtomPort = 0;
  64         lilv_node_free(atom_Sequence);        atom_Sequence = 0;
  65         lilv_node_free(boundedBlockLength);   boundedBlockLength = 0;
  66         lilv_node_free(fixedBlockLength);     fixedBlockLength = 0;
  67         lilv_node_free(powerOf2BlockLength);  powerOf2BlockLength = 0;
  68
  69         delete [] (char *)seq_out;            seq_out = 0;
  70         uri_table.remove_all_objects();
  71         features.remove_all_objects();        ui_features = 0;
  72         del_buffer();
  73 }
  74
  75
  76 int PluginLV2::load_lv2(const char *path, char *title)
  77 {
  78         if( !world ) {
  79                 world = lilv_world_new();
  80                 if( !world ) {
  81                         printf("lv2: lilv_world_new failed\n");
  82                         return 1;
  83                 }
  84                 lilv_world_load_all(world);
  85         }
  86
  87         LilvNode *uri = lilv_new_uri(world, path);
  88         if( !uri ) {
  89                 printf("lv2: lilv_new_uri(%s) failed\n", path);
  90                 return 1;
  91         }
  92
  93         const LilvPlugins *all_plugins = lilv_world_get_all_plugins(world);
  94         lilv = lilv_plugins_get_by_uri(all_plugins, uri);
  95         lilv_node_free(uri);
  96         if( !lilv ) {
  97                 printf("lv2: lilv_plugins_get_by_uriPlugin(%s) failed\n", path);
  98                 return 1;
  99         }
 100
 101         if( title ) {
 102                 LilvNode *name = lilv_plugin_get_name(lilv);
 103                 const char *nm = lilv_node_as_string(name);
 104                 sprintf(title, "L2_%s", nm);
 105                 lilv_node_free(name);
 106         }
 107         return 0;
 108 }
 109
 110 int PluginLV2::init_lv2(PluginLV2ClientConfig &conf, int sample_rate)
 111 {
 112         reset_lv2();
 113
 114         lv2_AudioPort       = lilv_new_uri(world, LV2_CORE__AudioPort);
 115         lv2_ControlPort     = lilv_new_uri(world, LV2_CORE__ControlPort);
 116         lv2_CVPort          = lilv_new_uri(world, LV2_CORE__CVPort);
 117         lv2_InputPort       = lilv_new_uri(world, LV2_CORE__InputPort);
 118         lv2_OutputPort      = lilv_new_uri(world, LV2_CORE__OutputPort);
 119         lv2_Optional        = lilv_new_uri(world, LV2_CORE__connectionOptional);
 120         atom_AtomPort       = lilv_new_uri(world, LV2_ATOM__AtomPort);
 121         atom_Sequence       = lilv_new_uri(world, LV2_ATOM__Sequence);
 122         powerOf2BlockLength = lilv_new_uri(world, LV2_BUF_SIZE__powerOf2BlockLength);
 123         fixedBlockLength    = lilv_new_uri(world, LV2_BUF_SIZE__fixedBlockLength);
 124         boundedBlockLength  = lilv_new_uri(world, LV2_BUF_SIZE__boundedBlockLength);
 125         seq_out = (LV2_Atom_Sequence *) new char[sizeof(LV2_Atom_Sequence) + LV2_SEQ_SIZE];
 126
 127         conf.init_lv2(lilv, this);
 128         nb_inputs = nb_outputs = 0;
 129
 130         for( int i=0; i<conf.nb_ports; ++i ) {
 131                 const LilvPort *lp = lilv_plugin_get_port_by_index(lilv, i);
 132                 if( !lp ) continue;
 133                 int is_input = lilv_port_is_a(lilv, lp, lv2_InputPort);
 134                 if( !is_input && !lilv_port_is_a(lilv, lp, lv2_OutputPort) &&
 135                     !lilv_port_has_property(lilv, lp, lv2_Optional) ) {
 136                         printf("lv2: not input, not output, and not optional: %s\n", conf.names[i]);
 137                         continue;
 138                 }
 139                 if( is_input && lilv_port_is_a(lilv, lp, lv2_ControlPort) ) {
 140                         conf.append(new PluginLV2Client_Opt(&conf, i));
 141                         continue;
 142                 }
 143                 if( lilv_port_is_a(lilv, lp, lv2_AudioPort) ||
 144                     lilv_port_is_a(lilv, lp, lv2_CVPort ) ) {
 145                         if( is_input ) ++nb_inputs; else ++nb_outputs;
 146                         continue;
 147                 }
 148         }
 149
 150         map.handle = (void*)&uri_table;
 151         map.map = uri_table_map;
 152         features.append(new Lv2Feature(LV2_URID_MAP_URI, &map));
 153         unmap.handle = (void*)&uri_table;
 154         unmap.unmap  = uri_table_unmap;
 155         features.append(new Lv2Feature(LV2_URID_UNMAP_URI, &unmap));
 156         features.append(new Lv2Feature(LV2_BUF_SIZE__powerOf2BlockLength, 0));
 157         features.append(new Lv2Feature(LV2_BUF_SIZE__fixedBlockLength,    0));
 158         features.append(new Lv2Feature(LV2_BUF_SIZE__boundedBlockLength,  0));
 159         features.append(0);
 160
 161         if( sample_rate < 64 ) sample_rate = 64;
 162         inst = lilv_plugin_instantiate(lilv, sample_rate, features);
 163         if( !inst ) {
 164                 printf("lv2: lilv_plugin_instantiate failed\n");
 165                 return 1;
 166         }
 167
 168         lilv_instance_activate(inst);
 169 // not sure what to do with these
 170         max_bufsz = nb_inputs &&
 171                 (lilv_plugin_has_feature(lilv, powerOf2BlockLength) ||
 172                  lilv_plugin_has_feature(lilv, fixedBlockLength) ||
 173                  lilv_plugin_has_feature(lilv, boundedBlockLength)) ? 4096 : 0;
 174         return 0;
 175 }
 176
 177 LV2_URID PluginLV2::uri_table_map(LV2_URID_Map_Handle handle, const char *uri)
 178 {
 179         return ((PluginLV2UriTable *)handle)->map(uri);
 180 }
 181
 182 const char *PluginLV2::uri_table_unmap(LV2_URID_Map_Handle handle, LV2_URID urid)
 183 {
 184         return ((PluginLV2UriTable *)handle)->unmap(urid);
 185 }
 186
 187 void PluginLV2::connect_ports(PluginLV2ClientConfig &conf, int ports)
 188 {
 189         int ich = 0, och = 0;
 190         for( int i=0; i<conf.nb_ports; ++i ) {
 191                 const LilvPort *lp = lilv_plugin_get_port_by_index(lilv, i);
 192                 if( !lp ) continue;
 193                 int port = conf.ports[i];
 194                 if( !(port & ports) ) continue;
 195                 if( (port & PORTS_CONTROL) ) {
 196                         lilv_instance_connect_port(inst, i, &conf.ctls[i]);
 197                         continue;
 198                 }
 199                 if( (port & PORTS_AUDIO) ) {
 200                         if( (port & PORTS_INPUT) ) {
 201                                 lilv_instance_connect_port(inst, i, in_buffers[ich]);
 202                                 iport[ich++] = i;
 203                         }
 204                         else if( (port & PORTS_OUTPUT) ) {
 205                                 lilv_instance_connect_port(inst, i, out_buffers[och]);
 206                                 oport[och++] = i;
 207                         }
 208                         continue;
 209                 }
 210                 if( (port & PORTS_ATOM) ) {
 211                         if( (port & PORTS_INPUT) )
 212                                 lilv_instance_connect_port(inst, i, &seq_in);
 213                         else if( (port & PORTS_OUTPUT) )
 214                                 lilv_instance_connect_port(inst, i, seq_out);
 215                         continue;
 216                 }
 217         }
 218
 219         seq_in[0].atom.size = sizeof(LV2_Atom_Sequence_Body);
 220         seq_in[0].atom.type = uri_table.map(LV2_ATOM__Sequence);
 221         seq_in[1].atom.size = 0;
 222         seq_in[1].atom.type = 0;
 223         seq_out->atom.size  = LV2_SEQ_SIZE;
 224         seq_out->atom.type  = uri_table.map(LV2_ATOM__Chunk);
 225 }
 226
 227 void PluginLV2::del_buffer()
 228 {
 229         if( shmid >= 0 )
 230                 shm_buffer(-1);
 231
 232         delete [] in_buffers;  in_buffers = 0;
 233         delete [] out_buffers;  out_buffers = 0;
 234 }
 235
 236 void PluginLV2::new_buffer(int64_t sz)
 237 {
 238         uint8_t *bp = 0;
 239         if( use_shm ) {  // currently, always uses shm
 240                 shmid = shmget(IPC_PRIVATE, sz, IPC_CREAT | 0777);
 241                 if( shmid >= 0 ) {
 242                         bp = (unsigned char*)shmat(shmid, NULL, 0);
 243                         if( bp == (void *) -1 ) { perror("shmat"); bp = 0; }
 244                         shmctl(shmid, IPC_RMID, 0); // delete when last ref gone
 245                 }
 246                 else {
 247                         perror("PluginLV2::allocate_buffer: shmget failed\n");
 248                         BC_Trace::dump_shm_stats(stdout);
 249                 }
 250         }
 251
 252         shm_bfr = (shm_bfr_t *) bp;
 253         if( shm_bfr ) shm_bfr->sz = sz;
 254 }
 255
 256 shm_bfr_t *PluginLV2::shm_buffer(int shmid)
 257 {
 258         if( this->shmid != shmid ) {
 259                 if( this->shmid >= 0 ) {
 260                         shmdt(shm_bfr);  this->shmid = -1;
 261                         shm_bfr = 0;
 262                 }
 263                 if( shmid >= 0 ) {
 264                         shm_bfr = (shm_bfr_t *)shmat(shmid, NULL, 0);
 265                         if( shm_bfr == (void *)-1 ) { perror("shmat");  shm_bfr = 0; }
 266                         this->shmid = shm_bfr ? shmid : -1;
 267                 }
 268         }
 269         return shm_bfr;
 270 }
 271
 272 void PluginLV2::init_buffer(int samples)
 273 {
 274         int64_t sz = sizeof(shm_bfr_t) +
 275                 sizeof(iport[0])*nb_inputs + sizeof(oport[0])*nb_outputs +
 276                 sizeof(*in_buffers[0]) *samples * nb_inputs +
 277                 sizeof(*out_buffers[0])*samples * nb_outputs;
 278
 279         if( shm_bfr ) {
 280                 if( shm_bfr->sz < sz ||
 281                     shm_bfr->nb_inputs != nb_inputs ||
 282                     shm_bfr->nb_outputs != nb_outputs )
 283                         del_buffer();
 284         }
 285
 286         if( !shm_bfr )
 287                 new_buffer(sz);
 288
 289         shm_bfr->samples = samples;
 290         shm_bfr->done = 0;
 291         shm_bfr->nb_inputs = nb_inputs;
 292         shm_bfr->nb_outputs = nb_outputs;
 293
 294         map_buffer();
 295 }
 296
 297 // shm_bfr layout:
 298 // struct shm_bfr {
 299 //   int64_t sz;
 300 //   int samples, done;
 301 //   int nb_inputs, nb_outputs;
 302 //   int iport[nb_inputs],
 303 //   float in_buffers[samples][nb_inputs];
 304 //   int oport[nb_outputs];
 305 //   float out_buffers[samples][nb_outputs];
 306 // };
 307
 308 void PluginLV2::map_buffer()
 309 {
 310         uint8_t *bp = (uint8_t *)(shm_bfr + 1);
 311
 312         nb_inputs = shm_bfr->nb_inputs;
 313         iport = (int *)bp;
 314         bp += sizeof(iport[0])*nb_inputs;
 315         in_buffers = new float*[nb_inputs];
 316         int samples = shm_bfr->samples;
 317         for(int i=0; i<nb_inputs; ++i ) {
 318                 in_buffers[i] = (float *)bp;
 319                 bp += sizeof(*in_buffers[0])*samples;
 320         }
 321
 322         nb_outputs = shm_bfr->nb_outputs;
 323         oport = (int *)bp;
 324         bp += sizeof(oport[0])*nb_outputs;
 325         out_buffers = new float*[nb_outputs];
 326         for( int i=0; i<nb_outputs; ++i ) {
 327                 out_buffers[i] = (float *)bp;
 328                 bp += sizeof(*out_buffers[0])*samples;
 329         }
 330 }
 331
 332
 333 #include "file.h"
 334 #include "pluginlv2ui.h"
 335
 336 PluginLV2ChildUI::PluginLV2ChildUI()
 337  : ForkChild()
 338 {
 339 }
 340
 341 PluginLV2ChildUI::~PluginLV2ChildUI()
 342 {
 343 }
 344
 345 void PluginLV2ChildUI::run()
 346 {
 347         ArrayList<char *> av;
 348         av.set_array_delete();
 349         char arg[BCTEXTLEN];
 350         const char *exec_path = File::get_cinlib_path();
 351         snprintf(arg, sizeof(arg), "%s/%s", exec_path, "lv2ui");
 352         av.append(cstrdup(arg));
 353         sprintf(arg, "%d", child_fd);
 354         av.append(cstrdup(arg));
 355         sprintf(arg, "%d", parent_fd);
 356         av.append(cstrdup(arg));
 357         sprintf(arg, "%d", ppid);
 358         av.append(cstrdup(arg));
 359         av.append(0);
 360         execv(av[0], &av.values[0]);
 361         fprintf(stderr, "execv failed: %s\n %m\n", av.values[0]);
 362         av.remove_all_objects();
 363         _exit(1);
 364 }
 365
 366
 367 PluginLV2UI::PluginLV2UI()
 368  : PluginLV2()
 369 {
 370         lilv_ui = 0;
 371         lilv_type = 0;
 372         uri_map = 0;
 373
 374         done = -1;
 375         running = 0;
 376         updates = 0;
 377         hidden = 1;
 378         title[0] = 0;
 379         child = 0;
 380
 381 // only gtk-2
 382         gtk_type = "http://lv2plug.in/ns/extensions/ui#GtkUI";
 383         top_level = 0;
 384 }
 385
 386 PluginLV2UI::~PluginLV2UI ()
 387 {
 388         reset_gui();
 389 }
 390
 391 #endif