Added possibility to define built-in R3D factory

Author: sadko4u

CHANGELOG

@@ -3,6 +3,7 @@
 *******************************************************************************
 
 === 0.5.4 ===
+* Added possibility to define built-in R3D factory.
 
 === 0.5.3 ===
 * Updated build scripts that now use tags without prefixes first.

include/lsp-plug.in/r3d/builtin.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
+ *           (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
+ *
+ * This file is part of lsp-r3d-base-lib
+ * Created on: 8 окт. 2020 г.
+ *
+ * lsp-r3d-base-lib is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * lsp-r3d-base-lib is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with lsp-r3d-base-lib. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef LSP_PLUG_IN_R3D_REGISTER_H_
+#define LSP_PLUG_IN_R3D_REGISTER_H_
+
+#include <lsp-plug.in/r3d/factory.h>
+
+namespace lsp
+{
+    namespace r3d
+    {
+        /**
+         * This class allows to register built-in factory
+         */
+        class LSP_SYMBOL_HIDDEN Factory
+        {
+            private:
+                Factory & operator = (const Factory &);
+
+            private:
+                static Factory *pList;
+
+                factory_t      *pFactory;
+                Factory        *pNext;
+
+            public:
+                explicit Factory(factory_t *factory);
+                ~Factory();
+
+            public:
+                static inline Factory      *list() { return pList;  }
+                inline Factory             *next() { return pNext;  }
+        };
+
+        /**
+         * Macro for simplifying definition of factory export
+         */
+        #define BUILTIN_FACTORY(symbol, factory)   \
+            LSP_SYMBOL_HIDDEN \
+            ::lsp::r3d::Factory symbol(factory)
+    }
+}
+
+#endif /* LSP_PLUG_IN_R3D_REGISTER_H_ */

src/main/builtin.cpp

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
+ *           (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
+ *
+ * This file is part of lsp-r3d-base-lib
+ * Created on: 8 окт. 2020 г.
+ *
+ * lsp-r3d-base-lib is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * lsp-r3d-base-lib is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with lsp-r3d-base-lib. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <lsp-plug.in/r3d/builtin.h>
+
+namespace lsp
+{
+    namespace r3d
+    {
+        Factory *Factory::pList = NULL;
+
+        Factory::Factory(factory_t *factory)
+        {
+            pFactory    = factory;
+            pNext       = pList;
+
+            pList       = this;
+        }
+
+        Factory::~Factory()
+        {
+            pFactory    = NULL;
+            pNext       = NULL;
+
+            if (pList == this)
+                pList = NULL;
+        }
+    }
+}
+
+