- Refactor on platform implementation. See comment in interface/platform.h for more info

source/platform/interface/platform.cpp

@@ -16,18 +16,62 @@
 //  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 // =====================================================================================================================
 
-#include <cstdlib>
+#include <fennec/platform/interface/display.h>
 #include <fennec/platform/interface/platform.h>
 
 namespace fennec
 {
 
-string platform::get_environment_variable(const cstring& var) {
-	const char* val = getenv(var);
-	return string(val, strlen(val));
+template<typename CtorT>
+static constexpr void insert_driver(list<platform::driver<CtorT>>& list, CtorT ctor, int priority) {
+	using list_t = fennec::list<platform::driver<CtorT>>;
+	using iter_t = typename list_t::iterator;
+
+	iter_t it = list.begin();
+	while (it != list.end()) {
+		if (priority > it->priority) {
+			break;
+		}
+	}
+	list.insert(it, { priority, ctor });
 }
 
-platform::platform() {
+void platform::initialize() {
+	load_display();
 }
 
+void platform::shutdown() {
+	delete _display;
 }
+
+void platform::load_display() {
+	auto& globals = _get_globals();
+	for (auto it : globals.displays) {
+		_display = it.constructor(this);
+		if (_display != nullptr) {
+			return;
+		}
+	}
+}
+
+void platform::add_driver(display_ctor ctor, int priority) {
+	auto& globals = _get_globals();
+	insert_driver(globals.displays, ctor, priority);
+}
+
+void platform::add_driver(input_ctor ctor, int priority) {
+	auto& globals = _get_globals();
+	insert_driver(globals.inputs, ctor, priority);
+}
+
+void platform::add_driver(gfxctx_ctor ctor, int priority) {
+	auto& globals = _get_globals();
+	insert_driver(globals.graphics, ctor, priority);
+}
+
+platform::global_context& platform::_get_globals() {
+	static global_context ctx;
+	return ctx;
+}
+
+}