1 files changed, 111 insertions, 0 deletions
diff --git a/src/libixion/module.cpp b/src/libixion/module.cpp
new file mode 100644
index 0000000..b6a4dff
--- /dev/null
+++ b/src/libixion/module.cpp
@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "ixion/module.hpp"
+#include "ixion/info.hpp"
+#include "ixion/compute_engine.hpp"
+#include <sstream>
+#include <vector>
+#include <boost/filesystem.hpp>
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <dlfcn.h>
+#endif
+
+namespace fs = boost::filesystem;
+
+namespace ixion { namespace draft {
+
+namespace {
+
+const char* mod_names[] = { "vulkan" };
+
+std::string get_module_prefix()
+{
+    std::ostringstream os;
+    os << "ixion-" << get_api_version_major() << "." << get_api_version_minor() << "-";
+    return os.str();
+}
+
+typedef module_def* (*fp_register_module_type)(void);
+
+void register_module(void* mod_handler, std::string_view mod_name, fp_register_module_type fp_register_module)
+{
+    if (!fp_register_module)
+        return;
+
+    module_def* md = fp_register_module();
+    compute_engine::add_class(
+        mod_handler, mod_name, md->create_compute_engine, md->destroy_compute_engine);
+}
+
+} // anonymous namespace
+
+#ifdef _WIN32
+
+void init_modules()
+{
+    std::string mod_prefix = get_module_prefix();
+
+    for (const char* mod_name : mod_names)
+    {
+        std::ostringstream os;
+        os << mod_prefix << mod_name << ".dll";
+
+        std::string modfile_name = os.str();
+
+        HMODULE hdl = LoadLibrary(modfile_name.c_str());
+        if (!hdl)
+            continue;
+
+        fp_register_module_type fp_register_module;
+        *(void**)(&fp_register_module) =
+            reinterpret_cast<void **>(GetProcAddress(hdl, "register_module"));
+
+        register_module(hdl, mod_name, fp_register_module);
+    }
+}
+
+void unload_module(void* handler)
+{
+    FreeLibrary((HMODULE)handler);
+}
+
+#else
+
+void init_modules()
+{
+    std::string mod_prefix = get_module_prefix();
+
+    for (const char* mod_name : mod_names)
+    {
+        std::ostringstream os;
+        os << mod_prefix << mod_name << ".so";
+
+        void* hdl = dlopen(os.str().data(), RTLD_NOW | RTLD_GLOBAL);
+        if (!hdl)
+            continue;
+
+        fp_register_module_type fp_register_module;
+        *(void**)(&fp_register_module) = dlsym(hdl, "register_module");
+
+        register_module(hdl, mod_name, fp_register_module);
+    }
+}
+
+void unload_module(void* handler)
+{
+    dlclose(handler);
+}
+
+#endif
+
+}}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */