Add Os Bridge into test framework

tests/gfx/include/os-ctx.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <palladium>
+
+enum class Driver {
+  Unknown = 0,
+  OpenGL2 = 1,
+  OpenGL3 = 2,
+  DirectX9 = 3,
+  Citro3D = 4,
+};
+
+namespace PD {
+class OsCtx {
+ public:
+  OsCtx(Driver d) : pDriver(d) {}
+  virtual ~OsCtx() {}
+
+  virtual void Init() {}
+  virtual void Deinit() {}
+  virtual bool Mainloop() { return false; }
+  virtual void ClearViewPort() {}
+  virtual void SwapBuffers() {}
+  PD::fvec2 SizeTranslate(PD::fvec2 in) {
+    return fvec2(in.x * pViewPort.x, in.y * pViewPort.y);
+  }
+
+ protected:
+  PD::ivec2 pViewPort;
+  const Driver pDriver;
+};
+}  // namespace PD

tests/gfx/include/os/desktopos.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <os-ctx.hpp>
+
+namespace PD {
+class DesktopOS : public PD::OsCtx {
+ public:
+  DesktopOS(Driver d = Driver::OpenGL3) : PD::OsCtx(d) {}
+  ~DesktopOS() {}
+
+  void Init() override;
+  void Deinit() override;
+  bool Mainloop() override;
+  void ClearViewPort() override;
+  void SwapBuffers() override;
+
+ private:
+  struct Impl;
+  Impl* impl = nullptr;
+};
+}  // namespace PD

tests/gfx/include/os/horizon-ctr.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <os-ctx.hpp>
+
+namespace PD {
+class HorizonCtr : public PD::OsCtx {
+ public:
+  HorizonCtr(Driver d = Driver::Citro3D) : PD::OsCtx(d) {}
+  ~HorizonCtr() {}
+
+  void Init() override;
+  void Deinit() override;
+  bool Mainloop() override;
+  void ClearViewPort() override;
+  void SwapBuffers() override;
+
+ private:
+  struct Impl;
+  Impl* impl = nullptr;
+};
+}  // namespace PD

tests/gfx/include/os/horizon-nx.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <os-ctx.hpp>
+
+namespace PD {
+class HorizonNX : public PD::OsCtx {
+ public:
+  HorizonNX(Driver d = Driver::OpenGL3) : PD::OsCtx(d) {}
+  ~HorizonNX() {}
+
+  void Init() override;
+  void Deinit() override;
+  bool Mainloop() override;
+  void ClearViewPort() override;
+  void SwapBuffers() override;
+
+ private:
+  struct Impl;
+  Impl* impl = nullptr;
+};
+}  // namespace PD