ensure that Lua DSP scripts are configured (even with 0 channels)

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

diff --git a/libs/ardour/vst_plugin.cc b/libs/ardour/vst_plugin.cc
index daf096e80ea204c1a7248a1b5fb06efe054d91a8..c9a214c0be6a69e49de6863f512dc17c949fe11a 100644 (file)
--- a/libs/ardour/vst_plugin.cc
+++ b/libs/ardour/vst_plugin.cc
@@ -18,7 +18,7 @@
 */
 
 #include <glib.h>
-#include <glib/gstdio.h>
+#include "pbd/gstdio_compat.h"
 
 #include <glibmm/fileutils.h>
 #include <glibmm/miscutils.h>
@@ -33,7 +33,7 @@
 #include "ardour/filesystem_paths.h"
 #include "ardour/audio_buffer.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 using namespace std;
 using namespace PBD;
@@ -44,8 +44,27 @@ VSTPlugin::VSTPlugin (AudioEngine& engine, Session& session, VSTHandle* handle)
        , _handle (handle)
        , _state (0)
        , _plugin (0)
+       , _pi (0)
+       , _num (0)
+       , _transport_frame (0)
+       , _transport_speed (0.f)
 {
+       memset (&_timeInfo, 0, sizeof(_timeInfo));
+}
 
+VSTPlugin::VSTPlugin (const VSTPlugin& other)
+       : Plugin (other)
+       , _handle (other._handle)
+       , _state (other._state)
+       , _plugin (other._plugin)
+       , _pi (other._pi)
+       , _num (other._num)
+       , _midi_out_buf (other._midi_out_buf)
+       , _transport_frame (0)
+       , _transport_speed (0.f)
+       , _parameter_defaults (other._parameter_defaults)
+{
+       memset (&_timeInfo, 0, sizeof(_timeInfo));
 }
 
 VSTPlugin::~VSTPlugin ()
@@ -87,9 +106,9 @@ VSTPlugin::set_block_size (pframes_t nframes)
 }
 
 float
-VSTPlugin::default_value (uint32_t)
+VSTPlugin::default_value (uint32_t which)
 {
-       return 0;
+       return _parameter_defaults[which];
 }
 
 float
@@ -149,8 +168,12 @@ int
 VSTPlugin::set_chunk (gchar const * data, bool single)
 {
        gsize size = 0;
+       int r = 0;
        guchar* raw_data = g_base64_decode (data, &size);
-       int const r = _plugin->dispatcher (_plugin, 24 /* effSetChunk */, single ? 1 : 0, size, raw_data, 0);
+       {
+               Glib::Threads::Mutex::Lock lm (_lock);
+               r = _plugin->dispatcher (_plugin, 24 /* effSetChunk */, single ? 1 : 0, size, raw_data, 0);
+       }
        g_free (raw_data);
        return r;
 }
@@ -158,7 +181,7 @@ VSTPlugin::set_chunk (gchar const * data, bool single)
 void
 VSTPlugin::add_state (XMLNode* root) const
 {
-       LocaleGuard lg (X_("C"));
+       LocaleGuard lg;
 
        if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
 
@@ -195,7 +218,7 @@ VSTPlugin::add_state (XMLNode* root) const
 int
 VSTPlugin::set_state (const XMLNode& node, int version)
 {
-       LocaleGuard lg (X_("C"));
+       LocaleGuard lg;
        int ret = -1;
 
        if (node.name() != state_node_name()) {
@@ -319,6 +342,9 @@ VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc)
                desc.sr_dependent = false;
        }
 
+       desc.normal = get_parameter (which);
+       _parameter_defaults[which] = desc.normal;
+
        return 0;
 }
 
@@ -375,7 +401,7 @@ VSTPlugin::load_user_preset (PresetRecord r)
        XMLNode* root = t->root ();
 
        for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
-               XMLProperty* label = (*i)->property (X_("label"));
+               XMLProperty const * label = (*i)->property (X_("label"));
 
                assert (label);
 
@@ -409,8 +435,8 @@ VSTPlugin::load_user_preset (PresetRecord r)
 
                        for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
                                if ((*j)->name() == X_("Parameter")) {
-                                               XMLProperty* index = (*j)->property (X_("index"));
-                                               XMLProperty* value = (*j)->property (X_("value"));
+                                               XMLProperty const * index = (*j)->property (X_("index"));
+                                               XMLProperty const * value = (*j)->property (X_("value"));
 
                                                assert (index);
                                                assert (value);
@@ -510,7 +536,11 @@ VSTPlugin::signal_latency () const
                return _user_latency;
        }
 
+#if ( defined(__x86_64__) || defined(_M_X64) )
+       return *((int32_t *) (((char *) &_plugin->flags) + 24)); /* initialDelay */
+#else
        return *((int32_t *) (((char *) &_plugin->flags) + 12)); /* initialDelay */
+#endif
 }
 
 set<Evoral::Parameter>
@@ -527,10 +557,25 @@ VSTPlugin::automatable () const
 
 int
 VSTPlugin::connect_and_run (BufferSet& bufs,
+               framepos_t start, framepos_t end, double speed,
                ChanMapping in_map, ChanMapping out_map,
                pframes_t nframes, framecnt_t offset)
 {
-       Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset);
+       Plugin::connect_and_run(bufs, start, end, speed, in_map, out_map, nframes, offset);
+
+       Glib::Threads::Mutex::Lock lm (_state_lock, Glib::Threads::TRY_LOCK);
+       if (!lm.locked()) {
+               /* by convention 'effSetChunk' should not be called while processing
+                * http://www.reaper.fm/sdk/vst/vst_ext.php
+                *
+                * All VSTs don't use in-place, PluginInsert::connect_and_run()
+                * does clear output buffers, so we can just return.
+                */
+               return 0;
+       }
+
+       _transport_frame = start;
+       _transport_speed = speed;
 
        ChanCount bufs_count;
        bufs_count.set(DataType::AUDIO, 1);
@@ -569,8 +614,8 @@ VSTPlugin::connect_and_run (BufferSet& bufs,
                bool      valid = false;
                index = out_map.get(DataType::AUDIO, out_index++, &valid);
                outs[i] = (valid)
-                                       ? bufs.get_audio(index).data(offset)
-                                       : scratch_bufs.get_audio(0).data(offset);
+                       ? bufs.get_audio(index).data(offset)
+                       : scratch_bufs.get_audio(0).data(offset);
        }
 
        if (bufs.count().n_midi() > 0) {
@@ -674,7 +719,7 @@ VSTPlugin::find_presets ()
 
        int const vst_version = _plugin->dispatcher (_plugin, effGetVstVersion, 0, 0, NULL, 0);
        for (int i = 0; i < _plugin->numPrograms; ++i) {
-               PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id (), i), "", -1, false);
+               PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id (), i), "", false);
 
                if (vst_version >= 2) {
                        char buf[256];
@@ -698,13 +743,13 @@ VSTPlugin::find_presets ()
                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"));
+                       XMLProperty const * uri = (*i)->property (X_("uri"));
+                       XMLProperty const * label = (*i)->property (X_("label"));
 
                        assert (uri);
                        assert (label);
 
-                       PresetRecord r (uri->value(), label->value(), -1, true);
+                       PresetRecord r (uri->value(), label->value(), true);
                        _presets.insert (make_pair (r.uri, r));
                }
        }