...

1 files changed, 47 insertions, 0 deletions

diff --git a/include/cru/win/native/WindowRenderTarget.hpp b/include/cru/win/native/WindowRenderTarget.hpp
new file mode 100644
index 00000000..83ac1e03
--- /dev/null
+++ b/include/cru/win/native/WindowRenderTarget.hpp
@@ -0,0 +1,47 @@
+#pragma once
+#include "Base.hpp"
+
+namespace cru::platform::graph::win::direct {
+class DirectGraphFactory;
+}
+
+namespace cru::platform::native::win {
+// Represents a window render target.
+class WindowRenderTarget : public Object {
+ public:
+  WindowRenderTarget(graph::win::direct::DirectGraphFactory* factory,
+                     HWND hwnd);
+
+  CRU_DELETE_COPY(WindowRenderTarget)
+  CRU_DELETE_MOVE(WindowRenderTarget)
+
+  ~WindowRenderTarget() override = default;
+
+ public:
+  graph::win::direct::DirectGraphFactory* GetDirectFactory() const {
+    return factory_;
+  }
+
+  ID2D1DeviceContext* GetD2D1DeviceContext() {
+    return d2d1_device_context_.Get();
+  }
+
+  // Resize the underlying buffer.
+  void ResizeBuffer(int width, int height);
+
+  // Set this render target as the d2d device context's target.
+  void SetAsTarget();
+
+  // Present the data of the underlying buffer to the window.
+  void Present();
+
+ private:
+  void CreateTargetBitmap();
+
+ private:
+  graph::win::direct::DirectGraphFactory* factory_;
+  Microsoft::WRL::ComPtr<ID2D1DeviceContext> d2d1_device_context_;
+  Microsoft::WRL::ComPtr<IDXGISwapChain1> dxgi_swap_chain_;
+  Microsoft::WRL::ComPtr<ID2D1Bitmap1> target_bitmap_;
+};
+}  // namespace cru::platform::native::win