abort if configuration fails

[ardour.git] / libs / ardour / lxvst_plugin.cc

diff --git a/libs/ardour/lxvst_plugin.cc b/libs/ardour/lxvst_plugin.cc
index c3074d65adb72e6502aaa55905d528b412de3c0c..2c50144f26f24e8acace6c494f77de5165ec12a0 100644 (file)
--- a/libs/ardour/lxvst_plugin.cc
+++ b/libs/ardour/lxvst_plugin.cc
@@ -17,6 +17,10 @@
 
 */
 
+#include <glibmm/fileutils.h>
+#include <glibmm/miscutils.h>
+
+#include "ardour/filesystem_paths.h"
 #include "ardour/linux_vst_support.h"
 #include "ardour/session.h"
 #include "ardour/lxvst_plugin.h"
@@ -62,7 +66,7 @@ LXVSTPlugin::~LXVSTPlugin ()
        vstfx_close (_state);
 }
 
-PluginPtr 
+PluginPtr
 LXVSTPluginInfo::load (Session& session)
 {
        try {
@@ -94,6 +98,70 @@ LXVSTPluginInfo::load (Session& session)
        }
 }
 
+std::vector<Plugin::PresetRecord>
+LXVSTPluginInfo::get_presets (bool user_only) const
+{
+       std::vector<Plugin::PresetRecord> p;
+#ifndef NO_PLUGIN_STATE
+       if (!Config->get_use_lxvst()) {
+               return p;
+       }
+
+       if (!user_only) {
+               // TODO - cache, instantiating the plugin can be heavy
+               /* Built-in presets */
+               VSTHandle* handle = vstfx_load(path.c_str());
+               Session::vst_current_loading_id = atoi (unique_id);
+               AEffect* plugin = handle->main_entry (Session::vst_callback);
+               Session::vst_current_loading_id = 0;
+
+               plugin->dispatcher (plugin, effOpen, 0, 0, 0, 0); // :(
+               int const vst_version = plugin->dispatcher (plugin, effGetVstVersion, 0, 0, NULL, 0);
+
+               for (int i = 0; i < plugin->numPrograms; ++i) {
+                       Plugin::PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id, i), "", false);
+                       if (vst_version >= 2) {
+                               char buf[256];
+                               if (plugin->dispatcher (plugin, 29, i, 0, buf, 0) == 1) {
+                                       r.label = buf;
+                               } else {
+                                       r.label = string_compose (_("Preset %1"), i);
+                               }
+                       } else {
+                               r.label = string_compose (_("Preset %1"), i);
+                       }
+                       p.push_back (r);
+               }
+
+               plugin->dispatcher (plugin, effMainsChanged, 0, 0, 0, 0);
+               plugin->dispatcher (plugin, effClose, 0, 0, 0, 0); // :(
+
+               if (handle->plugincnt) {
+                       handle->plugincnt--;
+               }
+               vstfx_unload (handle);
+       }
+
+       /* user presets */
+       XMLTree* t = new XMLTree;
+       std::string pf = Glib::build_filename (ARDOUR::user_config_directory (), "presets", string_compose ("vst-%1", unique_id));
+       if (Glib::file_test (pf, Glib::FILE_TEST_EXISTS)) {
+               t->set_filename (pf);
+               if (t->read ()) { // TODO read names only. skip parsing the actual data
+                       XMLNode* root = t->root ();
+                       for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
+                               XMLProperty* uri = (*i)->property (X_("uri"));
+                               XMLProperty* label = (*i)->property (X_("label"));
+                               p.push_back (Plugin::PresetRecord (uri->value(), label->value(), true));
+                       }
+               }
+       }
+       delete t;
+#endif
+
+       return p;
+}
+
 LXVSTPluginInfo::LXVSTPluginInfo()
 {
        type = ARDOUR::LXVST;