openvr WIP

vr/vr_interface.h

@@ -0,0 +1,36 @@
+#pragma once
+#include "Camera.h"
+#include "Model3d.h"
+#include "Texture.h"
+
+class vr_interface
+{
+public:
+    enum eye_e {
+        eye_left,
+        eye_right
+    };
+
+    virtual viewport_proj_config get_proj_config(eye_e) = 0;
+    virtual glm::ivec2 get_target_size() = 0;
+    virtual void begin_frame() = 0;
+    virtual void submit(eye_e, opengl_texture*) = 0;
+    virtual std::vector<TModel3d*> get_render_models() = 0;
+    virtual void finish_frame() = 0;
+    virtual ~vr_interface() = 0;
+};
+
+class vr_interface_factory
+{
+public:
+    using create_method = std::unique_ptr<vr_interface>(*)();
+
+    bool register_backend(const std::string &backend, create_method func);
+    std::unique_ptr<vr_interface> create(const std::string &name);
+
+    static vr_interface_factory* get_instance();
+
+private:
+    std::unordered_map<std::string, create_method> backends;
+    static vr_interface_factory *instance;
+};