diff options
Diffstat (limited to 'libs/ardour/linux_vst_info_file.cc')
-rw-r--r-- | libs/ardour/linux_vst_info_file.cc | 427 |
1 files changed, 0 insertions, 427 deletions
diff --git a/libs/ardour/linux_vst_info_file.cc b/libs/ardour/linux_vst_info_file.cc deleted file mode 100644 index 581bcca87f..0000000000 --- a/libs/ardour/linux_vst_info_file.cc +++ /dev/null @@ -1,427 +0,0 @@ -/* - Copyright (C) 2012 Paul Davis - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ - -/** @file libs/ardour/vst_info_file.cc - * @brief Code to manage info files containing cached information about a plugin. - * e.g. its name, creator etc. - */ - -#include <iostream> -#include <cassert> - -#include <sys/types.h> -#include <sys/stat.h> -#include <unistd.h> -#include <errno.h> - -#include <stdlib.h> -#include <stddef.h> -#include <stdio.h> -#include <string.h> -#include <libgen.h> - -#include <glib.h> -#include <glib/gstdio.h> -#include <glibmm.h> - -#include "pbd/error.h" - -#include "ardour/linux_vst_support.h" - -#define MAX_STRING_LEN 256 - -using namespace std; - -static char * -read_string (FILE *fp) -{ - char buf[MAX_STRING_LEN]; - - if (!fgets (buf, MAX_STRING_LEN, fp)) { - return 0; - } - - if (strlen(buf) < MAX_STRING_LEN) { - if (strlen (buf)) { - buf[strlen(buf)-1] = 0; - } - return strdup (buf); - } else { - return 0; - } -} - -/** Read an integer value from a line in fp into n, - * @return true on failure, false on success. - */ -static bool -read_int (FILE* fp, int* n) -{ - char buf[MAX_STRING_LEN]; - - char* p = fgets (buf, MAX_STRING_LEN, fp); - if (p == 0) { - return true; - } - - return (sscanf (p, "%d", n) != 1); -} - -static VSTInfo * -load_vstfx_info_file (FILE* fp) -{ - VSTInfo *info; - - if ((info = (VSTInfo*) malloc (sizeof (VSTInfo))) == 0) { - return 0; - } - - if ((info->name = read_string(fp)) == 0) goto error; - if ((info->creator = read_string(fp)) == 0) goto error; - if (read_int (fp, &info->UniqueID)) goto error; - if ((info->Category = read_string(fp)) == 0) goto error; - if (read_int (fp, &info->numInputs)) goto error; - if (read_int (fp, &info->numOutputs)) goto error; - if (read_int (fp, &info->numParams)) goto error; - if (read_int (fp, &info->wantMidi)) goto error; - if (read_int (fp, &info->hasEditor)) goto error; - if (read_int (fp, &info->canProcessReplacing)) goto error; - - if ((info->ParamNames = (char **) malloc(sizeof(char*)*info->numParams)) == 0) { - goto error; - } - - for (int i = 0; i < info->numParams; ++i) { - if ((info->ParamNames[i] = read_string(fp)) == 0) goto error; - } - - if ((info->ParamLabels = (char **) malloc(sizeof(char*)*info->numParams)) == 0) { - goto error; - } - - for (int i = 0; i < info->numParams; ++i) { - if ((info->ParamLabels[i] = read_string(fp)) == 0) goto error; - } - - return info; - - error: - free (info); - return 0; -} - -static int -save_vstfx_info_file (VSTInfo *info, FILE* fp) -{ - assert (info); - assert (fp); - - fprintf (fp, "%s\n", info->name); - fprintf (fp, "%s\n", info->creator); - fprintf (fp, "%d\n", info->UniqueID); - fprintf (fp, "%s\n", info->Category); - fprintf (fp, "%d\n", info->numInputs); - fprintf (fp, "%d\n", info->numOutputs); - fprintf (fp, "%d\n", info->numParams); - fprintf (fp, "%d\n", info->wantMidi); - fprintf (fp, "%d\n", info->hasEditor); - fprintf (fp, "%d\n", info->canProcessReplacing); - - for (int i = 0; i < info->numParams; i++) { - fprintf (fp, "%s\n", info->ParamNames[i]); - } - - for (int i = 0; i < info->numParams; i++) { - fprintf (fp, "%s\n", info->ParamLabels[i]); - } - - return 0; -} - -static string -vstfx_infofile_path (char* dllpath, int personal) -{ - string dir; - if (personal) { - dir = Glib::build_filename (Glib::get_home_dir (), ".fst"); - - /* If the directory doesn't exist, try to create it */ - if (!Glib::file_test (dir, Glib::FILE_TEST_IS_DIR)) { - if (g_mkdir (dir.c_str (), 0700)) { - return 0; - } - } - - } else { - dir = Glib::path_get_dirname (std::string(dllpath)); - } - - stringstream s; - s << "." << Glib::path_get_basename (dllpath) << ".fsi"; - return Glib::build_filename (dir, s.str ()); -} - -static char * -vstfx_infofile_stat (char *dllpath, struct stat* statbuf, int personal) -{ - if (strstr (dllpath, ".so" ) == 0) { - return 0; - } - - string const path = vstfx_infofile_path (dllpath, personal); - - if (Glib::file_test (path, Glib::FileTest (Glib::FILE_TEST_EXISTS | Glib::FILE_TEST_IS_REGULAR))) { - - /* info file exists in same location as the shared object, so - check if its current and up to date - */ - - - struct stat dllstat; - - if (stat (dllpath, &dllstat) == 0) { - if (stat (path.c_str(), statbuf) == 0) { - if (dllstat.st_mtime <= statbuf->st_mtime) { - /* plugin is older than info file */ - return strdup (path.c_str ()); - } - } - } - } - - return 0; -} - - -static FILE * -vstfx_infofile_for_read (char* dllpath) -{ - struct stat own_statbuf; - struct stat sys_statbuf; - FILE *rv = NULL; - - char* own_info = vstfx_infofile_stat (dllpath, &own_statbuf, 1); - char* sys_info = vstfx_infofile_stat (dllpath, &sys_statbuf, 0); - - if (own_info) { - if (sys_info) { - if (own_statbuf.st_mtime <= sys_statbuf.st_mtime) { - /* system info file is newer, use it */ - rv = g_fopen (sys_info, "rb"); - } - } else { - rv = g_fopen (own_info, "rb"); - } - } - free(own_info); - free(sys_info); - - return rv; -} - -static FILE * -vstfx_infofile_create (char* dllpath, int personal) -{ - if (strstr (dllpath, ".so" ) == 0) { - return 0; - } - - string const path = vstfx_infofile_path (dllpath, personal); - return fopen (path.c_str(), "w"); -} - -static FILE * -vstfx_infofile_for_write (char* dllpath) -{ - FILE* f; - - if ((f = vstfx_infofile_create (dllpath, 0)) == 0) { - f = vstfx_infofile_create (dllpath, 1); - } - - return f; -} - -static -int vstfx_can_midi (VSTState* vstfx) -{ - AEffect* plugin = vstfx->plugin; - - int const vst_version = plugin->dispatcher (plugin, effGetVstVersion, 0, 0, 0, 0.0f); - - if (vst_version >= 2) { - /* should we send it VST events (i.e. MIDI) */ - - if ((plugin->flags & effFlagsIsSynth) || (plugin->dispatcher (plugin, effCanDo, 0, 0,(void*) "receiveVstEvents", 0.0f) > 0)) { - return -1; - } - } - - return false; -} - -static VSTInfo * -vstfx_info_from_plugin (VSTState* vstfx) -{ - assert (vstfx); - - VSTInfo* info = (VSTInfo*) malloc (sizeof (VSTInfo)); - if (!info) { - return 0; - } - - /*We need to init the creator because some plugins - fail to implement getVendorString, and so won't stuff the - string with any name*/ - - char creator[65] = "Unknown\0"; - - AEffect* plugin = vstfx->plugin; - - info->name = strdup (vstfx->handle->name); - - /*If the plugin doesn't bother to implement GetVendorString we will - have pre-stuffed the string with 'Unkown' */ - - plugin->dispatcher (plugin, effGetVendorString, 0, 0, creator, 0); - - /*Some plugins DO implement GetVendorString, but DON'T put a name in it - so if its just a zero length string we replace it with 'Unknown' */ - - if (strlen(creator) == 0) { - info->creator = strdup ("Unknown"); - } else { - info->creator = strdup (creator); - } - - info->UniqueID = plugin->uniqueID; - - info->Category = strdup("None"); /* XXX */ - info->numInputs = plugin->numInputs; - info->numOutputs = plugin->numOutputs; - info->numParams = plugin->numParams; - info->wantMidi = vstfx_can_midi(vstfx); - info->hasEditor = plugin->flags & effFlagsHasEditor ? true : false; - info->canProcessReplacing = plugin->flags & effFlagsCanReplacing ? true : false; - info->ParamNames = (char **) malloc(sizeof(char*)*info->numParams); - info->ParamLabels = (char **) malloc(sizeof(char*)*info->numParams); - - for (int i = 0; i < info->numParams; ++i) { - char name[64]; - char label[64]; - - /* Not all plugins give parameters labels as well as names */ - - strcpy (name, "No Name"); - strcpy (label, "No Label"); - - plugin->dispatcher (plugin, effGetParamName, i, 0, name, 0); - info->ParamNames[i] = strdup(name); - - //NOTE: 'effGetParamLabel' is no longer defined in vestige headers - //plugin->dispatcher (plugin, effGetParamLabel, i, 0, label, 0); - info->ParamLabels[i] = strdup(label); - } - return info; -} - -/* A simple 'dummy' audiomaster callback which should be ok, - we will only be instantiating the plugin in order to get its info -*/ - -static intptr_t -simple_master_callback (AEffect *, int32_t opcode, int32_t, intptr_t, void *, float) -{ - if (opcode == audioMasterVersion) { - return 2; - } else { - return 0; - } -} - -/** Try to get plugin info - first by looking for a .fsi cache of the - data, and if that doesn't exist, load the plugin, get its data and - then cache it for future ref -*/ - -VSTInfo * -vstfx_get_info (char* dllpath) -{ - FILE* infofile; - VSTHandle* h; - VSTState* vstfx; - - if ((infofile = vstfx_infofile_for_read (dllpath)) != 0) { - VSTInfo *info; - info = load_vstfx_info_file (infofile); - fclose (infofile); - if (info == 0) { - PBD::warning << "Cannot get LinuxVST information form " << dllpath << ": info file load failed." << endmsg; - } - return info; - } - - if (!(h = vstfx_load(dllpath))) { - PBD::warning << "Cannot get LinuxVST information from " << dllpath << ": load failed." << endmsg; - return 0; - } - - if (!(vstfx = vstfx_instantiate(h, simple_master_callback, 0))) { - vstfx_unload(h); - PBD::warning << "Cannot get LinuxVST information from " << dllpath << ": instantiation failed." << endmsg; - return 0; - } - - infofile = vstfx_infofile_for_write (dllpath); - - if (!infofile) { - vstfx_close(vstfx); - vstfx_unload(h); - PBD::warning << "Cannot get LinuxVST information from " << dllpath << ": cannot create new FST info file." << endmsg; - return 0; - } - - VSTInfo* info = vstfx_info_from_plugin (vstfx); - - save_vstfx_info_file (info, infofile); - fclose (infofile); - - vstfx_close (vstfx); - vstfx_unload (h); - - return info; -} - -void -vstfx_free_info (VSTInfo *info) -{ - for (int i = 0; i < info->numParams; i++) { - free (info->ParamNames[i]); - free (info->ParamLabels[i]); - } - - free (info->name); - free (info->creator); - free (info->Category); - free (info->ParamNames); - free (info->ParamLabels); - free (info); -} - - |