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/file_utils.h"
29 #include "ardour/debug.h"
30 #include "ardour/panner_manager.h"
31 #include "ardour/panner_search_path.h"
36 using namespace ARDOUR;
39 PannerManager* PannerManager::_instance = 0;
41 PannerManager::PannerManager ()
45 PannerManager::~PannerManager ()
47 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
53 PannerManager::instance ()
56 _instance = new PannerManager ();
63 PannerManager::discover_panners ()
65 vector<std::string> panner_modules;
67 Glib::PatternSpec so_extension_pattern("*.so");
68 Glib::PatternSpec dylib_extension_pattern("*.dylib");
70 find_matching_files_in_search_path (panner_search_path (),
71 so_extension_pattern, panner_modules);
73 find_matching_files_in_search_path (panner_search_path (),
74 dylib_extension_pattern, panner_modules);
76 DEBUG_TRACE (DEBUG::Panning, string_compose (_("looking for panners in %1"), panner_search_path().to_string()));
78 for (vector<std::string>::iterator i = panner_modules.begin(); i != panner_modules.end(); ++i) {
84 PannerManager::panner_discover (string path)
88 if ((pinfo = get_descriptor (path)) != 0) {
90 list<PannerInfo*>::iterator i;
92 for (i = panner_info.begin(); i != panner_info.end(); ++i) {
93 if (pinfo->descriptor.name == (*i)->descriptor.name) {
98 if (i == panner_info.end()) {
99 panner_info.push_back (pinfo);
100 DEBUG_TRACE (DEBUG::Panning, string_compose(_("Panner discovered: \"%1\" in %2"), pinfo->descriptor.name, path));
108 PannerManager::get_descriptor (string path)
111 PannerInfo* info = 0;
112 PanPluginDescriptor *descriptor = 0;
113 PanPluginDescriptor* (*dfunc)(void);
116 if ((module = dlopen (path.c_str(), RTLD_NOW)) == 0) {
117 error << string_compose(_("PannerManager: cannot load module \"%1\" (%2)"), path, dlerror()) << endmsg;
121 dfunc = (PanPluginDescriptor* (*)(void)) dlsym (module, "panner_descriptor");
123 if ((errstr = dlerror()) != 0) {
124 error << string_compose(_("PannerManager: module \"%1\" has no descriptor function."), path) << endmsg;
125 error << errstr << endmsg;
130 descriptor = dfunc();
132 info = new PannerInfo (*descriptor, module);
141 PannerManager::select_panner (ChanCount in, ChanCount out)
143 PanPluginDescriptor* d;
144 int32_t nin = in.n_audio();
145 int32_t nout = out.n_audio();
147 /* look for exact match first */
149 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
150 d = &(*p)->descriptor;
152 if (d->in == nin && d->out == nout) {
157 /* no exact match, look for good fit on inputs and variable on outputs */
159 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
160 d = &(*p)->descriptor;
162 if (d->in == nin && d->out == -1) {
167 /* no exact match, look for good fit on outputs and variable on inputs */
169 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
170 d = &(*p)->descriptor;
172 if (d->in == -1 && d->out == nout) {
177 /* no exact match, look for variable fit on inputs and outputs */
179 for (list<PannerInfo*>::iterator p = panner_info.begin(); p != panner_info.end(); ++p) {
180 d = &(*p)->descriptor;
182 if (d->in == -1 && d->out == -1) {
187 warning << string_compose (_("no panner discovered for in/out = %1/%2"), nin, nout) << endmsg;