Lv2 midi rollback

cmake/LV2Config.cmake

@@ -1,5 +1,5 @@
 # This option is for MIDI CC support in absence of host midi:binding support
-option(SFIZZ_LV2_PSA "Enable plugin-side MIDI automations" OFF)
+option(SFIZZ_LV2_PSA "Enable plugin-side MIDI automations" ON)
 
 # Configuration for this plugin
 # TODO: generate version from git
@@ -57,6 +57,10 @@ function(sfizz_lv2_generate_controllers_ttl FILE)
 ")
     math(EXPR _j "${SFIZZ_NUM_CCS}-1")
     foreach(_i RANGE "${_j}")
+        if(_i LESS 128 AND SFIZZ_LV2_PSA)
+            continue() # Don't generate automation parameters for CCs with plugin-side automation
+        endif()
+
         string_left_pad(_i "${_i}" 3 0)
         file(APPEND "${FILE}" "
 sfizz:cc${_i}

cmake/SfizzConfig.cmake

@@ -159,6 +159,7 @@ Release asserts:               ${SFIZZ_RELEASE_ASSERTS}
 
 Install prefix:                ${CMAKE_INSTALL_PREFIX}
 LV2 destination directory:     ${LV2PLUGIN_INSTALL_DIR}
+LV2 plugin-side CC automation  ${SFIZZ_LV2_PSA}
 
 Compiler CXX debug flags:      ${CMAKE_CXX_FLAGS_DEBUG}
 Compiler CXX release flags:    ${CMAKE_CXX_FLAGS_RELEASE}

plugins/lv2/CMakeLists.txt

@@ -35,7 +35,9 @@ endif()
 
 if(SFIZZ_LV2_PSA)
     target_compile_definitions(${LV2PLUGIN_PRJ_NAME} PRIVATE "SFIZZ_LV2_PSA=1")
-    target_compile_definitions(${LV2PLUGIN_PRJ_NAME}_ui PRIVATE "SFIZZ_LV2_PSA=1")
+    if(SFIZZ_LV2_UI)
+        target_compile_definitions(${LV2PLUGIN_PRJ_NAME}_ui PRIVATE "SFIZZ_LV2_PSA=1")
+    endif()
 endif()
 
 # Explicitely strip all symbols on Linux but lv2_descriptor()

plugins/lv2/sfizz.cpp

@@ -644,7 +644,6 @@ instantiate(const LV2_Descriptor *descriptor,
 
     self->ccmap = sfizz_lv2_ccmap_create(self->map);
     self->cc_current = new float[sfz::config::numCCs]();
-    self->ccauto = new absl::optional<float>[sfz::config::numCCs];
 
     self->synth = sfizz_create_synth();
     self->client = sfizz_create_client(self);
@@ -678,7 +677,6 @@ cleanup(LV2_Handle instance)
     spin_mutex_destroy(self->synth_mutex);
     sfizz_delete_client(self->client);
     sfizz_free(self->synth);
-    delete[] self->ccauto;
     delete[] self->cc_current;
     sfizz_lv2_ccmap_free(self->ccmap);
     delete self;
@@ -806,7 +804,6 @@ sfizz_lv2_handle_atom_object(sfizz_plugin_t *self, int delay, const LV2_Atom_Obj
             float value = *(const float *)LV2_ATOM_BODY_CONST(atom);
             sfizz_automate_hdcc(self->synth, delay, cc, value);
             self->cc_current[cc] = value;
-            self->ccauto[cc] = absl::nullopt;
         }
     }
     else if (key == self->sfizz_sfz_file_uri)
@@ -874,15 +871,6 @@ sfizz_lv2_process_midi_event(sfizz_plugin_t *self, const LV2_Atom_Event *ev)
             unsigned cc = msg[1];
             float value = float(msg[2]) * (1.0f / 127.0f);
 
-            // Send
-            if (sfizz_is_sustain_or_sostenuto(self, cc)) {
-                sfizz_automate_hdcc(self->synth,
-                                    (int)ev->time.frames,
-                                    (int)cc,
-                                    value);
-                break;
-            }
-
 // Note(jpc) CC must be mapped by host, not handled here.
 //           See LV2 midi:binding.
 #if defined(SFIZZ_LV2_PSA)
@@ -894,9 +882,6 @@ sfizz_lv2_process_midi_event(sfizz_plugin_t *self, const LV2_Atom_Event *ev)
                                         (int)ev->time.frames,
                                         (int)cc,
                                         value);
-                    self->cc_current[cc] = value;
-                    self->ccauto[cc] = value;
-                    self->have_ccauto = true;
                 }
                 break;
             case LV2_MIDI_CTL_ALL_NOTES_OFF:
@@ -1249,18 +1234,6 @@ run(LV2_Handle instance, uint32_t sample_count)
         self->midnam->update(self->midnam->handle);
     }
 
-    if (self->have_ccauto)
-    {
-        for (unsigned cc = 0; cc < sfz::config::numCCs; ++cc) {
-            absl::optional<float> value = self->ccauto[cc];
-            if (value) {
-                sfizz_lv2_send_controller(self, self->patch_set_uri, cc, *value);
-                self->ccauto[cc] = absl::nullopt;
-            }
-        }
-        self->have_ccauto = false;
-    }
-
     spin_mutex_unlock(self->synth_mutex);
 
 #if defined(SFIZZ_LV2_UI)
@@ -1408,9 +1381,6 @@ sfizz_lv2_update_sfz_info(sfizz_plugin_t *self)
     const InstrumentDescription desc = parseDescriptionBlob(blob);
     for (unsigned cc = 0; cc < sfz::config::numCCs; ++cc) {
         if (desc.ccUsed.test(cc) && !desc.sustainOrSostenuto.test(cc)) {
-            // Mark all the used CCs for automation with default values
-            self->ccauto[cc] = desc.ccValue[cc];
-            self->have_ccauto = true;
             // Update the current CCs
             self->cc_current[cc] = desc.ccValue[cc];
         }
@@ -1579,9 +1549,6 @@ restore(LV2_Handle instance,
         if (value) {
             // Set CC in the synth
             sfizz_automate_hdcc(self->synth, 0, int(cc), *value);
-            // Mark CCs for automation with state values
-            self->ccauto[cc] = *value;
-            self->have_ccauto = true;
             // Update the current CCs
             self->cc_current[cc] = *value;
         }

plugins/lv2/sfizz_lv2_plugin.h

@@ -140,10 +140,6 @@ struct sfizz_plugin_t
     // updated by hdcc or file load
     float *cc_current {};
 
-    // CC queued for automation on next run(). (synchronized by `synth_mutex`)
-    absl::optional<float>* ccauto {};
-    volatile bool have_ccauto {};
-
     // Timing data
     int bar {};
     double bar_beat {};

plugins/lv2/sfizz_ui.cpp

@@ -761,6 +761,17 @@ void sfizz_ui_t::uiSendValue(EditId id, const EditValue& v)
     default:
         if (editIdIsCC(id)) {
             int cc = ccForEditId(id);
+#if defined(SFIZZ_LV2_PSA)
+            if (cc >= 0 && cc < 128) {
+                // Send MIDI message
+                uint8_t msg[3];
+                msg[0] = 0xB0;
+                msg[1] = static_cast<uint8_t>(cc);
+                msg[2] = static_cast<uint8_t>(v.to_float() * 127);
+                uiSendMIDI(msg, 3);
+                break;
+            }
+#endif
             LV2_URID urid = sfizz_lv2_ccmap_map(ccmap.get(), cc);
             sendController(urid, v.to_float());
         }

src/sfizz/Layer.cpp

@@ -179,7 +179,8 @@ bool Layer::registerCC(int ccNumber, float ccValue, float randValue) noexcept
 
         sequenceSwitched_ =
             ((sequenceCounter_++ % region.sequenceLength) == region.sequencePosition - 1);
-        if (isSwitchedOn())
+
+        if (isSwitchedOn() && (ccValue != midiState_.getCCValue(ccNumber)))
             return true;
     }
 

tests/SynthT.cpp

@@ -1983,10 +1983,10 @@ TEST_CASE("[Synth] Sequences also work on cc triggers")
     synth.cc(0, 61, 20);
     synth.renderBlock(buffer);
     REQUIRE( playingSamples(synth) == std::vector<std::string> { "*sine", "*saw" } );
-    synth.cc(0, 61, 20);
+    synth.cc(0, 61, 21);
     synth.renderBlock(buffer);
     REQUIRE( playingSamples(synth) == std::vector<std::string> { "*sine", "*saw" } );
-    synth.cc(0, 61, 20);
+    synth.cc(0, 61, 22);
     synth.renderBlock(buffer);
     REQUIRE( playingSamples(synth) == std::vector<std::string> { "*sine", "*saw", "*sine" } );
 }