Implement LV2_STATE__freePath

Signed-off-by: falkTX <falktx@falktx.com>

source/backend/plugin/CarlaPluginLV2.cpp

@@ -161,6 +161,7 @@ enum CarlaLv2Features {
     kFeatureIdResizePort,
     kFeatureIdRtMemPool,
     kFeatureIdRtMemPoolOld,
+    kFeatureIdStateFreePath,
     kFeatureIdStateMakePath,
     kFeatureIdStateMapPath,
     kFeatureIdStrictBounds,
@@ -718,6 +719,9 @@ public:
         if (fFeatures[kFeatureIdLogs] != nullptr && fFeatures[kFeatureIdLogs]->data != nullptr)
             delete (LV2_Log_Log*)fFeatures[kFeatureIdLogs]->data;
 
+        if (fFeatures[kFeatureIdStateFreePath] != nullptr && fFeatures[kFeatureIdStateFreePath]->data != nullptr)
+            delete (LV2_State_Free_Path*)fFeatures[kFeatureIdStateFreePath]->data;
+
         if (fFeatures[kFeatureIdStateMakePath] != nullptr && fFeatures[kFeatureIdStateMakePath]->data != nullptr)
             delete (LV2_State_Make_Path*)fFeatures[kFeatureIdStateMakePath]->data;
 
@@ -5902,6 +5906,10 @@ public:
         logFt->printf            = carla_lv2_log_printf;
         logFt->vprintf           = carla_lv2_log_vprintf;
 
+        LV2_State_Free_Path* const stateFreePathFt = new LV2_State_Free_Path;
+        stateFreePathFt->handle                    = this;
+        stateFreePathFt->free_path                 = carla_lv2_state_free_path;
+
         LV2_State_Make_Path* const stateMakePathFt = new LV2_State_Make_Path;
         stateMakePathFt->handle                    = this;
         stateMakePathFt->path                      = carla_lv2_state_make_path;
@@ -5996,6 +6004,9 @@ public:
         fFeatures[kFeatureIdRtMemPoolOld]->URI  = LV2_RTSAFE_MEMORY_POOL_DEPRECATED_URI;
         fFeatures[kFeatureIdRtMemPoolOld]->data = rtMemPoolOldFt;
 
+        fFeatures[kFeatureIdStateFreePath]->URI  = LV2_STATE__freePath;
+        fFeatures[kFeatureIdStateFreePath]->data = stateFreePathFt;
+
         fFeatures[kFeatureIdStateMakePath]->URI  = LV2_STATE__makePath;
         fFeatures[kFeatureIdStateMakePath]->data = stateMakePathFt;
 
@@ -6836,6 +6847,14 @@ private:
     // -------------------------------------------------------------------
     // State Feature
 
+    static void carla_lv2_state_free_path(LV2_State_Free_Path_Handle handle, char* path)
+    {
+        CARLA_SAFE_ASSERT_RETURN(handle != nullptr,);
+        carla_debug("carla_lv2_state_free_path(%p, \"%s\")", handle, path);
+
+        std::free(path);
+    }
+
     static char* carla_lv2_state_make_path(LV2_State_Make_Path_Handle handle, const char* path)
     {
         CARLA_SAFE_ASSERT_RETURN(handle != nullptr, nullptr);

source/bridges-ui/CarlaBridgeFormatLV2.cpp

@@ -113,6 +113,7 @@ enum CarlaLv2Features {
     kFeatureIdLogs = 0,
     kFeatureIdOptions,
     kFeatureIdPrograms,
+    kFeatureIdStateFreePath,
     kFeatureIdStateMakePath,
     kFeatureIdStateMapPath,
     kFeatureIdUriMap,
@@ -248,6 +249,10 @@ public:
         logFt->printf            = carla_lv2_log_printf;
         logFt->vprintf           = carla_lv2_log_vprintf;
 
+        LV2_State_Free_Path* const stateFreePathFt = new LV2_State_Free_Path;
+        stateFreePathFt->handle                    = this;
+        stateFreePathFt->free_path                 = carla_lv2_state_free_path;
+
         LV2_State_Make_Path* const stateMakePathFt = new LV2_State_Make_Path;
         stateMakePathFt->handle                    = this;
         stateMakePathFt->path                      = carla_lv2_state_make_path;
@@ -300,6 +305,9 @@ public:
         fFeatures[kFeatureIdPrograms]->URI   = LV2_PROGRAMS__Host;
         fFeatures[kFeatureIdPrograms]->data  = programsFt;
 
+        fFeatures[kFeatureIdStateFreePath]->URI  = LV2_STATE__freePath;
+        fFeatures[kFeatureIdStateFreePath]->data = stateFreePathFt;
+
         fFeatures[kFeatureIdStateMakePath]->URI  = LV2_STATE__makePath;
         fFeatures[kFeatureIdStateMakePath]->data = stateMakePathFt;
 
@@ -366,6 +374,7 @@ public:
         fRdfUiDescriptor = nullptr;
 
         delete (LV2_Log_Log*)fFeatures[kFeatureIdLogs]->data;
+        delete (LV2_State_Free_Path*)fFeatures[kFeatureIdStateFreePath]->data;
         delete (LV2_State_Make_Path*)fFeatures[kFeatureIdStateMakePath]->data;
         delete (LV2_State_Map_Path*)fFeatures[kFeatureIdStateMapPath]->data;
         delete (LV2_Programs_Host*)fFeatures[kFeatureIdPrograms]->data;
@@ -971,6 +980,14 @@ private:
     // ----------------------------------------------------------------------------------------------------------------
     // State Feature
 
+    static void carla_lv2_state_free_path(LV2_State_Free_Path_Handle handle, char* path)
+    {
+        CARLA_SAFE_ASSERT_RETURN(handle != nullptr,);
+        carla_debug("carla_lv2_state_free_path(%p, \"%s\")", handle, path);
+
+        std::free(path);
+    }
+
     static char* carla_lv2_state_make_path(LV2_State_Make_Path_Handle handle, const char* path)
     {
         CARLA_SAFE_ASSERT_RETURN(handle != nullptr, nullptr);

source/utils/CarlaLv2Utils.hpp

@@ -3072,6 +3072,8 @@ bool is_lv2_feature_supported(const LV2_URI uri) noexcept
         return true;
     if (std::strcmp(uri, LV2_RTSAFE_MEMORY_POOL_DEPRECATED_URI) == 0)
         return true;
+    if (std::strcmp(uri, LV2_STATE__freePath) == 0)
+        return true;
     if (std::strcmp(uri, LV2_STATE__loadDefaultState) == 0)
         return true;
     if (std::strcmp(uri, LV2_STATE__makePath) == 0)