2 Copyright (C) 2011 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <glibmm/pattern.h>
23 #include <glibmm/fileutils.h>
25 #include "pbd/error.h"
26 #include "pbd/compose.h"
27 #include "pbd/pathscanner.h"
28 #include "pbd/stl_delete.h"
30 #include "ardour/debug.h"
31 #include "ardour/panner_manager.h"
32 #include "ardour/panner_search_path.h"
37 using namespace ARDOUR;
40 PannerManager* PannerManager::_instance = 0;
42 PannerManager::PannerManager ()
46 PannerManager::~PannerManager ()
48 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
54 PannerManager::instance ()
57 _instance = new PannerManager ();
63 static bool panner_filter (const string& str, void */*arg*/)
66 return str[0] != '.' && (str.length() > 6 && str.find (".dylib") == (str.length() - 6));
68 return str[0] != '.' && (str.length() > 3 && str.find (".so") == (str.length() - 3));
73 PannerManager::discover_panners ()
76 std::vector<std::string *> *panner_modules;
77 std::string search_path = panner_search_path().to_string();
79 DEBUG_TRACE (DEBUG::Panning, string_compose (_("looking for panners in %1\n"), search_path));
81 panner_modules = scanner (search_path, panner_filter, 0, false, true, 1, true);
83 for (vector<std::string *>::iterator i = panner_modules->begin(); i != panner_modules->end(); ++i) {
84 panner_discover (**i);
86 vector_delete (panner_modules);
90 PannerManager::panner_discover (string path)
94 if ((pinfo = get_descriptor (path)) != 0) {
96 list<PannerInfo*>::iterator i;
98 for (i = panner_info.begin(); i != panner_info.end(); ++i) {
99 if (pinfo->descriptor.name == (*i)->descriptor.name) {
104 if (i == panner_info.end()) {
105 panner_info.push_back (pinfo);
106 DEBUG_TRACE (DEBUG::Panning, string_compose(_("Panner discovered: \"%1\" in %2\n"), pinfo->descriptor.name, path));
114 PannerManager::get_descriptor (string path)
117 PannerInfo* info = 0;
118 PanPluginDescriptor *descriptor = 0;
119 PanPluginDescriptor* (*dfunc)(void);
122 if ((module = dlopen (path.c_str(), RTLD_NOW)) == 0) {
123 error << string_compose(_("PannerManager: cannot load module \"%1\" (%2)"), path, dlerror()) << endmsg;
127 dfunc = (PanPluginDescriptor* (*)(void)) dlsym (module, "panner_descriptor");
129 if ((errstr = dlerror()) != 0) {
130 error << string_compose(_("PannerManager: module \"%1\" has no descriptor function."), path) << endmsg;
131 error << errstr << endmsg;
136 descriptor = dfunc();
138 info = new PannerInfo (*descriptor, module);
147 PannerManager::select_panner (ChanCount in, ChanCount out, std::string const uri)
149 PanPluginDescriptor* d;
150 int32_t nin = in.n_audio();
151 int32_t nout = out.n_audio();
153 /* look for user-preference -- check if channels match */
154 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
155 d = &(*p)->descriptor;
156 if (d->panner_uri != uri) continue;
157 if (d->in != nin && d->in != -1) continue;
158 if (d->out != nout && d->out != -1) continue;
162 /* look for exact match first */
164 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
165 d = &(*p)->descriptor;
167 if (d->in == nin && d->out == nout) {
172 /* no exact match, look for good fit on inputs and variable on outputs */
174 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
175 d = &(*p)->descriptor;
177 if (d->in == nin && d->out == -1) {
182 /* no exact match, look for good fit on outputs and variable on inputs */
184 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
185 d = &(*p)->descriptor;
187 if (d->in == -1 && d->out == nout) {
192 /* no exact match, look for variable fit on inputs and outputs */
194 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
195 d = &(*p)->descriptor;
197 if (d->in == -1 && d->out == -1) {
202 warning << string_compose (_("no panner discovered for in/out = %1/%2"), nin, nout) << endmsg;
208 PannerManager::get_by_uri (std::string uri)
210 PannerInfo* pi = NULL;
211 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
212 if ((*p)->descriptor.panner_uri != uri) continue;