Save&Restore soundfonts 16outs usage

source/backend/engine/CarlaEngine.cpp

@@ -1303,6 +1303,20 @@ bool CarlaEngine::loadFilename(const char* const filename)
     return false;
 }
 
+bool charEndsWith(const char* const str, const char* const suffix)
+{
+    if (str == nullptr || suffix == nullptr)
+        return false;
+
+    const size_t strLen(std::strlen(str));
+    const size_t suffixLen(std::strlen(suffix));
+
+    if (strLen < suffixLen)
+        return false;
+
+    return (std::strncmp(str + (strLen-suffixLen), suffix, suffixLen) == 0);
+}
+
 bool CarlaEngine::loadProject(const char* const filename)
 {
     CARLA_ASSERT(filename != nullptr);
@@ -1342,7 +1356,16 @@ bool CarlaEngine::loadProject(const char* const filename)
             const void* extraStuff = nullptr;
 
             if (std::strcmp(saveState.type, "DSSI") == 0)
+            {
                 extraStuff = findDSSIGUI(saveState.binary, saveState.label);
+            }
+            else if (std::strcmp(saveState.type, "SF2") == 0)
+            {
+                const char use16OutsSuffix[] = " (16 outs)";
+
+                if (charEndsWith(saveState.label, use16OutsSuffix))
+                    extraStuff = (void*)0x1; // non-null
+            }
 
             // TODO - proper find&load plugins
             if (addPlugin(getPluginTypeFromString(saveState.type), saveState.binary, saveState.name, saveState.label, extraStuff))

source/backend/plugin/FluidSynthPlugin.cpp

@@ -1571,6 +1571,9 @@ public:
         fFilename = filename;
         fLabel    = label;
 
+        if (kUses16Outs && ! fLabel.endsWith(" (16 outs)"))
+            fLabel += " (16 outs)";
+
         if (name != nullptr)
             fName = kData->engine->getUniquePluginName(name);
         else

source/backend/plugin/LinuxSamplerPlugin.cpp

@@ -1049,6 +1049,9 @@ public:
         fMaker    = info.Artists.c_str();
         fFilename = filename;
 
+        if (kUses16Outs && ! fLabel.endsWith(" (16 outs)"))
+            fLabel += " (16 outs)";
+
         if (name != nullptr)
             fName = kData->engine->getUniquePluginName(name);
         else

source/utils/CarlaString.hpp

@@ -178,6 +178,32 @@ public:
         return (buffer[pos] >= '0' && buffer[pos] <= '9');
     }
 
+    bool startsWith(const char* const prefix) const
+    {
+        if (prefix == nullptr)
+            return false;
+
+        const size_t prefixLen(std::strlen(prefix));
+
+        if (bufferLen < prefixLen)
+            return false;
+
+        return (std::strncmp(buffer + (bufferLen-prefixLen), prefix, prefixLen) == 0);
+    }
+
+    bool endsWith(const char* const suffix) const
+    {
+        if (suffix == nullptr)
+            return false;
+
+        const size_t suffixLen(std::strlen(suffix));
+
+        if (bufferLen < suffixLen)
+            return false;
+
+        return (std::strncmp(buffer + (bufferLen-suffixLen), suffix, suffixLen) == 0);
+    }
+
     void clear()
     {
         truncate(0);