1 /***********************************************************/
2 /*vstfx infofile - module to manage info files */
3 /*containing cached information about a plugin. e.g. its */
4 /*name, creator etc etc */
5 /***********************************************************/
21 #include <glib/gstdio.h>
23 #include "pbd/error.h"
25 #include "ardour/linux_vst_support.h"
27 #define MAX_STRING_LEN 256
29 static char* read_string(FILE *fp)
31 char buf[MAX_STRING_LEN];
33 if (!fgets( buf, MAX_STRING_LEN, fp )) {
37 if(strlen(buf) < MAX_STRING_LEN) {
39 buf[strlen(buf)-1] = 0;
48 load_vstfx_info_file (FILE* fp)
53 if ((info = (VSTInfo*) malloc (sizeof (VSTInfo))) == 0) {
57 if((info->name = read_string(fp)) == 0) goto error;
58 if((info->creator = read_string(fp)) == 0) goto error;
59 if(1 != fscanf(fp, "%d\n", &info->UniqueID)) goto error;
60 if((info->Category = read_string(fp)) == 0) goto error;
61 if(1 != fscanf(fp, "%d\n", &info->numInputs)) goto error;
62 if(1 != fscanf(fp, "%d\n", &info->numOutputs)) goto error;
63 if(1 != fscanf(fp, "%d\n", &info->numParams)) goto error;
64 if(1 != fscanf(fp, "%d\n", &info->wantMidi)) goto error;
65 if(1 != fscanf(fp, "%d\n", &info->hasEditor)) goto error;
66 if(1 != fscanf(fp, "%d\n", &info->canProcessReplacing)) goto error;
68 if((info->ParamNames = (char **) malloc(sizeof(char*)*info->numParams)) == 0) {
72 for (i=0; i<info->numParams; i++) {
73 if((info->ParamNames[i] = read_string(fp)) == 0) goto error;
76 if ((info->ParamLabels = (char **) malloc(sizeof(char*)*info->numParams)) == 0) {
80 for (i=0; i < info->numParams; i++) {
81 if((info->ParamLabels[i] = read_string(fp)) == 0) goto error;
92 save_vstfx_info_file (VSTInfo *info, FILE* fp)
97 vstfx_error("** ERROR ** VSTFXinfofile : info ptr is 0\n");
102 vstfx_error("** ERROR ** VSTFXinfofile : file ptr is 0\n");
106 fprintf( fp, "%s\n", info->name );
107 fprintf( fp, "%s\n", info->creator );
108 fprintf( fp, "%d\n", info->UniqueID );
109 fprintf( fp, "%s\n", info->Category );
110 fprintf( fp, "%d\n", info->numInputs );
111 fprintf( fp, "%d\n", info->numOutputs );
112 fprintf( fp, "%d\n", info->numParams );
113 fprintf( fp, "%d\n", info->wantMidi );
114 fprintf( fp, "%d\n", info->hasEditor );
115 fprintf( fp, "%d\n", info->canProcessReplacing );
117 for (i=0; i < info->numParams; i++) {
118 fprintf(fp, "%s\n", info->ParamNames[i]);
121 for (i=0; i < info->numParams; i++) {
122 fprintf(fp, "%s\n", info->ParamLabels[i]);
128 static char* vstfx_infofile_stat (char *dllpath, struct stat* statbuf, int personal)
136 if (strstr (dllpath, ".so" ) == 0) {
141 dir_path = g_build_filename (g_get_home_dir(), ".fst", NULL);
143 dir_path = g_path_get_dirname (dllpath);
146 base = g_path_get_basename (dllpath);
147 blen = strlen (base) + 2; // null char and '.'
148 basename = (char*) g_malloc (blen);
149 snprintf (basename, blen, ".%s.fsi", base);
152 path = g_build_filename (dir_path, basename, NULL);
158 if (g_file_test (path, GFileTest (G_FILE_TEST_EXISTS|G_FILE_TEST_IS_REGULAR))) {
160 /* info file exists in same location as the shared object, so
161 check if its current and up to date
167 if (stat (dllpath, &dllstat) == 0) {
168 if (stat(path, statbuf) == 0) {
169 if (dllstat.st_mtime <= statbuf->st_mtime) {
170 /* plugin is older than info file */
183 static FILE* vstfx_infofile_for_read (char* dllpath)
185 struct stat own_statbuf;
186 struct stat sys_statbuf;
190 own_info = vstfx_infofile_stat (dllpath, &own_statbuf, 1);
191 sys_info = vstfx_infofile_stat (dllpath, &sys_statbuf, 0);
195 if (own_statbuf.st_mtime <= sys_statbuf.st_mtime) {
196 /* system info file is newer, use it */
197 return fopen (sys_info, "r");
200 return fopen (own_info, "r");
207 static FILE* vstfx_infofile_create (char* dllpath, int personal)
215 if (strstr (dllpath, ".so" ) == 0) {
220 dir_path = g_build_filename (g_get_home_dir(), ".fst", NULL);
222 /* if the directory doesn't yet exist, try to create it */
224 if (!g_file_test (dir_path, G_FILE_TEST_IS_DIR)) {
225 if (g_mkdir (dir_path, 0700)) {
231 dir_path = g_path_get_dirname (dllpath);
234 base = g_path_get_basename (dllpath);
235 blen = strlen (base) + 2; // null char and '.'
236 basename = (char*) g_malloc (blen);
237 snprintf (basename, blen, ".%s.fsi", base);
240 path = g_build_filename (dir_path, basename, NULL);
245 FILE* f = fopen (path, "w");
251 static FILE* vstfx_infofile_for_write (char* dllpath)
255 if ((f = vstfx_infofile_create (dllpath, 0)) == 0) {
256 f = vstfx_infofile_create (dllpath, 1);
263 int vstfx_can_midi (VSTState* vstfx)
265 AEffect *plugin = vstfx->plugin;
267 int vst_version = plugin->dispatcher (plugin, effGetVstVersion, 0, 0, 0, 0.0f);
269 if (vst_version >= 2)
271 /* should we send it VST events (i.e. MIDI) */
273 if ((plugin->flags & effFlagsIsSynth) || (plugin->dispatcher (plugin, effCanDo, 0, 0,(void*) "receiveVstEvents", 0.0f) > 0))
280 vstfx_info_from_plugin (VSTState* vstfx)
282 VSTInfo* info = (VSTInfo*) malloc (sizeof (VSTInfo));
287 /*We need to init the creator because some plugins
288 fail to implement getVendorString, and so won't stuff the
289 string with any name*/
291 char creator[65] = "Unknown\0";
295 vstfx_error( "** ERROR ** VSTFXinfofile : vstfx ptr is 0\n" );
302 plugin = vstfx->plugin;
304 info->name = strdup(vstfx->handle->name );
306 /*If the plugin doesn't bother to implement GetVendorString we will
307 have pre-stuffed the string with 'Unkown' */
309 plugin->dispatcher (plugin, effGetVendorString, 0, 0, creator, 0);
311 /*Some plugins DO implement GetVendorString, but DON'T put a name in it
312 so if its just a zero length string we replace it with 'Unknown' */
314 if (strlen(creator) == 0) {
315 info->creator = strdup("Unknown");
317 info->creator = strdup (creator);
320 info->UniqueID = plugin->uniqueID;
322 info->Category = strdup("None"); // FIXME:
323 info->numInputs = plugin->numInputs;
324 info->numOutputs = plugin->numOutputs;
325 info->numParams = plugin->numParams;
326 info->wantMidi = vstfx_can_midi(vstfx);
327 info->hasEditor = plugin->flags & effFlagsHasEditor ? true : false;
328 info->canProcessReplacing = plugin->flags & effFlagsCanReplacing ? true : false;
329 info->ParamNames = (char **) malloc(sizeof(char*)*info->numParams);
330 info->ParamLabels = (char **) malloc(sizeof(char*)*info->numParams);
332 for(i=0; i < info->numParams; i++) {
336 /*Not all plugins give parameters labels as well as names*/
338 strcpy(name, "No Name");
339 strcpy(label, "No Label");
341 plugin->dispatcher (plugin, effGetParamName, i, 0, name, 0);
342 info->ParamNames[i] = strdup(name);
344 //NOTE: 'effGetParamLabel' is no longer defined in vestige headers
345 //plugin->dispatcher (plugin, effGetParamLabel, i, 0, label, 0);
346 info->ParamLabels[i] = strdup(label);
351 /* A simple 'dummy' audiomaster callback which should be ok,
352 we will only be instantiating the plugin in order to get its info*/
355 simple_master_callback (AEffect *, int32_t opcode, int32_t, intptr_t, void *, float)
357 if (opcode == audioMasterVersion)
363 /*Try to get plugin info - first by looking for a .fsi cache of the
364 data, and if that doesn't exist, load the plugin, get its data and
365 then cache it for future ref*/
368 vstfx_get_info (char* dllpath)
375 if ((infofile = vstfx_infofile_for_read (dllpath)) != 0) {
377 info = load_vstfx_info_file (infofile);
382 if(!(h = vstfx_load(dllpath))) {
383 PBD::warning << "Cannot get LinuxVST information from " << dllpath << ": load failed." << endmsg;
387 if(!(vstfx = vstfx_instantiate(h, simple_master_callback, 0))) {
389 PBD::warning << "Cannot get LinuxVST information from " << dllpath << ": instantiation failed." << endmsg;
393 infofile = vstfx_infofile_for_write (dllpath);
398 PBD::warning << "Cannot get LinuxVST information from " << dllpath << ": cannot create new FST info file." << endmsg;
402 info = vstfx_info_from_plugin(vstfx);
404 save_vstfx_info_file(info, infofile);
414 vstfx_free_info (VSTInfo *info)
416 for (int i = 0; i < info->numParams; i++) {
417 free (info->ParamNames[i]);
418 free (info->ParamLabels[i]);
422 free (info->creator);
423 free (info->Category);