12 files changed, 539 insertions, 0 deletions
diff --git a/include/cru/win/graphics/direct/Brush.hpp b/include/cru/win/graphics/direct/Brush.hpp
new file mode 100644
index 00000000..fbff83b5
--- /dev/null
+++ b/include/cru/win/graphics/direct/Brush.hpp
@@ -0,0 +1,39 @@
+#pragma once
+#include "ComResource.hpp"
+#include "Resource.hpp"
+
+#include "cru/platform/graphics/Brush.hpp"
+
+namespace cru::platform::graphics::win::direct {
+struct ID2DBrush : virtual IBrush {
+  virtual ID2D1Brush* GetD2DBrushInterface() const = 0;
+};
+
+class D2DSolidColorBrush : public DirectGraphResource,
+                           public virtual ISolidColorBrush,
+                           public virtual ID2DBrush,
+                           public virtual IComResource<ID2D1SolidColorBrush> {
+ public:
+  explicit D2DSolidColorBrush(DirectGraphFactory* factory);
+
+  CRU_DELETE_COPY(D2DSolidColorBrush)
+  CRU_DELETE_MOVE(D2DSolidColorBrush)
+
+  ~D2DSolidColorBrush() override = default;
+
+ public:
+  Color GetColor() override { return color_; }
+  void SetColor(const Color& color) override;
+
+  ID2D1Brush* GetD2DBrushInterface() const override { return brush_.Get(); }
+
+  ID2D1SolidColorBrush* GetComInterface() const override {
+    return brush_.Get();
+  }
+
+ private:
+  Color color_ = colors::black;
+
+  Microsoft::WRL::ComPtr<ID2D1SolidColorBrush> brush_;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/ComResource.hpp b/include/cru/win/graphics/direct/ComResource.hpp
new file mode 100644
index 00000000..34ea39ed
--- /dev/null
+++ b/include/cru/win/graphics/direct/ComResource.hpp
@@ -0,0 +1,11 @@
+#pragma once
+#include "../../WinPreConfig.hpp"
+
+#include "cru/common/Base.hpp"
+
+namespace cru::platform::graphics::win::direct {
+template <typename TInterface>
+struct IComResource : virtual Interface {
+  virtual TInterface* GetComInterface() const = 0;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/ConvertUtil.hpp b/include/cru/win/graphics/direct/ConvertUtil.hpp
new file mode 100644
index 00000000..0d8da8a1
--- /dev/null
+++ b/include/cru/win/graphics/direct/ConvertUtil.hpp
@@ -0,0 +1,107 @@
+#pragma once
+#include "../../WinPreConfig.hpp"
+
+#include "cru/platform/graphics/Base.hpp"
+
+namespace cru::platform::graphics::win::direct {
+inline D2D1_MATRIX_3X2_F Convert(const platform::Matrix& matrix) {
+  D2D1_MATRIX_3X2_F m;
+  m._11 = matrix.m11;
+  m._12 = matrix.m12;
+  m._21 = matrix.m21;
+  m._22 = matrix.m22;
+  m._31 = matrix.m31;
+  m._32 = matrix.m32;
+  return m;
+}
+
+inline D2D1_COLOR_F Convert(const Color& color) {
+  return D2D1::ColorF(color.red / 255.0f, color.green / 255.0f,
+                      color.blue / 255.0f, color.alpha / 255.0f);
+}
+
+inline D2D1_POINT_2F Convert(const Point& point) {
+  return D2D1::Point2F(point.x, point.y);
+}
+
+inline D2D1_RECT_F Convert(const Rect& rect) {
+  return D2D1::RectF(rect.left, rect.top, rect.left + rect.width,
+                     rect.top + rect.height);
+}
+
+inline D2D1_ROUNDED_RECT Convert(const RoundedRect& rounded_rect) {
+  return D2D1::RoundedRect(Convert(rounded_rect.rect), rounded_rect.radius_x,
+                           rounded_rect.radius_y);
+}
+
+inline D2D1_ELLIPSE Convert(const Ellipse& ellipse) {
+  return D2D1::Ellipse(Convert(ellipse.center), ellipse.radius_x,
+                       ellipse.radius_y);
+}
+
+inline platform::Matrix Convert(const D2D1_MATRIX_3X2_F& matrix) {
+  return platform::Matrix{matrix._11, matrix._12, matrix._21,
+                          matrix._22, matrix._31, matrix._32};
+}
+
+inline Color Convert(const D2D1_COLOR_F& color) {
+  auto floor = [](float n) { return static_cast<std::uint8_t>(n + 0.5f); };
+  return Color{floor(color.r * 255.0f), floor(color.g * 255.0f),
+               floor(color.b * 255.0f), floor(color.a * 255.0f)};
+}
+
+inline Point Convert(const D2D1_POINT_2F& point) {
+  return Point(point.x, point.y);
+}
+
+inline Rect Convert(const D2D1_RECT_F& rect) {
+  return Rect(rect.left, rect.top, rect.right - rect.left,
+              rect.bottom - rect.top);
+}
+
+inline RoundedRect Convert(const D2D1_ROUNDED_RECT& rounded_rect) {
+  return RoundedRect(Convert(rounded_rect.rect), rounded_rect.radiusX,
+                     rounded_rect.radiusY);
+}
+
+inline Ellipse Convert(const D2D1_ELLIPSE& ellipse) {
+  return Ellipse(Convert(ellipse.point), ellipse.radiusX, ellipse.radiusY);
+}
+
+inline bool operator==(const D2D1_POINT_2F& left, const D2D1_POINT_2F& right) {
+  return left.x == right.x && left.y == right.y;
+}
+
+inline bool operator!=(const D2D1_POINT_2F& left, const D2D1_POINT_2F& right) {
+  return !(left == right);
+}
+
+inline bool operator==(const D2D1_RECT_F& left, const D2D1_RECT_F& right) {
+  return left.left == right.left && left.top == right.top &&
+         left.right == right.right && left.bottom == right.bottom;
+}
+
+inline bool operator!=(const D2D1_RECT_F& left, const D2D1_RECT_F& right) {
+  return !(left == right);
+}
+
+inline bool operator==(const D2D1_ROUNDED_RECT& left,
+                       const D2D1_ROUNDED_RECT& right) {
+  return left.rect == right.rect && left.radiusX == right.radiusX &&
+         left.radiusY == right.radiusY;
+}
+
+inline bool operator!=(const D2D1_ROUNDED_RECT& left,
+                       const D2D1_ROUNDED_RECT& right) {
+  return !(left == right);
+}
+
+inline bool operator==(const D2D1_ELLIPSE& left, const D2D1_ELLIPSE& right) {
+  return left.point == right.point && left.radiusX == right.radiusX &&
+         left.radiusY == right.radiusY;
+}
+
+inline bool operator!=(const D2D1_ELLIPSE& left, const D2D1_ELLIPSE& right) {
+  return !(left == right);
+}
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/Exception.hpp b/include/cru/win/graphics/direct/Exception.hpp
new file mode 100644
index 00000000..72493f2f
--- /dev/null
+++ b/include/cru/win/graphics/direct/Exception.hpp
@@ -0,0 +1,7 @@
+#pragma once
+#include "../../Exception.hpp"
+
+namespace cru::platform::graphics::win::direct {
+using platform::win::HResultError;
+using platform::win::ThrowIfFailed;
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/Factory.hpp b/include/cru/win/graphics/direct/Factory.hpp
new file mode 100644
index 00000000..70f3ede1
--- /dev/null
+++ b/include/cru/win/graphics/direct/Factory.hpp
@@ -0,0 +1,58 @@
+#pragma once
+#include "Resource.hpp"
+
+#include "cru/platform/graphics/Factory.hpp"
+
+namespace cru::platform::graphics::win::direct {
+class DirectGraphFactory : public DirectResource, public virtual IGraphFactory {
+ public:
+  DirectGraphFactory();
+
+  CRU_DELETE_COPY(DirectGraphFactory)
+  CRU_DELETE_MOVE(DirectGraphFactory)
+
+  ~DirectGraphFactory() override;
+
+ public:
+  ID3D11Device* GetD3D11Device() const { return d3d11_device_.Get(); }
+  ID2D1Factory1* GetD2D1Factory() const { return d2d1_factory_.Get(); }
+  ID2D1Device* GetD2D1Device() const { return d2d1_device_.Get(); }
+  IDXGIFactory2* GetDxgiFactory() const { return dxgi_factory_.Get(); }
+  IDWriteFactory* GetDWriteFactory() const { return dwrite_factory_.Get(); }
+  IDWriteFontCollection* GetSystemFontCollection() const {
+    return dwrite_system_font_collection_.Get();
+  }
+
+ public:
+  Microsoft::WRL::ComPtr<ID2D1DeviceContext> CreateD2D1DeviceContext();
+
+  // This context should only be used to create graphic resources like brush.
+  // Because graphic resources can be shared if they are created in the same
+  // device.
+  ID2D1DeviceContext* GetDefaultD2D1DeviceContext() {
+    return d2d1_device_context_.Get();
+  }
+
+ public:
+  std::unique_ptr<ISolidColorBrush> CreateSolidColorBrush() override;
+
+  std::unique_ptr<IGeometryBuilder> CreateGeometryBuilder() override;
+
+  std::unique_ptr<IFont> CreateFont(std::u16string font_family,
+                                    float font_size) override;
+
+  std::unique_ptr<ITextLayout> CreateTextLayout(std::shared_ptr<IFont> font,
+                                                std::u16string text) override;
+
+ private:
+  Microsoft::WRL::ComPtr<ID3D11Device> d3d11_device_;
+  // ID2D1Factory1 is a interface only available in Windows 8 and Windows 7 with
+  // update. It is d2d v1.1.
+  Microsoft::WRL::ComPtr<ID2D1Factory1> d2d1_factory_;
+  Microsoft::WRL::ComPtr<ID2D1Device> d2d1_device_;
+  Microsoft::WRL::ComPtr<ID2D1DeviceContext> d2d1_device_context_;
+  Microsoft::WRL::ComPtr<IDXGIFactory2> dxgi_factory_;
+  Microsoft::WRL::ComPtr<IDWriteFactory> dwrite_factory_;
+  Microsoft::WRL::ComPtr<IDWriteFontCollection> dwrite_system_font_collection_;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/Font.hpp b/include/cru/win/graphics/direct/Font.hpp
new file mode 100644
index 00000000..fd3921a3
--- /dev/null
+++ b/include/cru/win/graphics/direct/Font.hpp
@@ -0,0 +1,33 @@
+#pragma once
+#include "ComResource.hpp"
+#include "Resource.hpp"
+
+#include "cru/platform/graphics/Font.hpp"
+
+#include <string_view>
+
+namespace cru::platform::graphics::win::direct {
+class DWriteFont : public DirectGraphResource,
+                   public virtual IFont,
+                   public virtual IComResource<IDWriteTextFormat> {
+ public:
+  DWriteFont(DirectGraphFactory* factory, std::u16string font_family,
+             float font_size);
+
+  CRU_DELETE_COPY(DWriteFont)
+  CRU_DELETE_MOVE(DWriteFont)
+
+  ~DWriteFont() override = default;
+
+ public:
+  IDWriteTextFormat* GetComInterface() const override {
+    return text_format_.Get();
+  }
+
+  float GetFontSize() override;
+
+ private:
+  std::u16string font_family_;
+  Microsoft::WRL::ComPtr<IDWriteTextFormat> text_format_;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/Geometry.hpp b/include/cru/win/graphics/direct/Geometry.hpp
new file mode 100644
index 00000000..edfec590
--- /dev/null
+++ b/include/cru/win/graphics/direct/Geometry.hpp
@@ -0,0 +1,57 @@
+#pragma once
+#include "ComResource.hpp"
+#include "Resource.hpp"
+
+#include "cru/platform/graphics/Geometry.hpp"
+
+namespace cru::platform::graphics::win::direct {
+class D2DGeometryBuilder : public DirectGraphResource,
+                           public virtual IGeometryBuilder {
+ public:
+  explicit D2DGeometryBuilder(DirectGraphFactory* factory);
+
+  CRU_DELETE_COPY(D2DGeometryBuilder)
+  CRU_DELETE_MOVE(D2DGeometryBuilder)
+
+  ~D2DGeometryBuilder() override = default;
+
+ public:
+  void BeginFigure(const Point& point) override;
+  void LineTo(const Point& point) override;
+  void QuadraticBezierTo(const Point& control_point,
+                         const Point& end_point) override;
+  void CloseFigure(bool close) override;
+
+  std::unique_ptr<IGeometry> Build() override;
+
+ private:
+  bool IsValid() { return geometry_ != nullptr; }
+  void CheckValidation();
+
+ private:
+  Microsoft::WRL::ComPtr<ID2D1PathGeometry> geometry_;
+  Microsoft::WRL::ComPtr<ID2D1GeometrySink> geometry_sink_;
+};
+
+class D2DGeometry : public DirectGraphResource,
+                    public virtual IGeometry,
+                    public IComResource<ID2D1Geometry> {
+ public:
+  D2DGeometry(DirectGraphFactory* factory,
+              Microsoft::WRL::ComPtr<ID2D1PathGeometry> geometry);
+
+  CRU_DELETE_COPY(D2DGeometry)
+  CRU_DELETE_MOVE(D2DGeometry)
+
+  ~D2DGeometry() override = default;
+
+ public:
+  ID2D1Geometry* GetComInterface() const override { return geometry_.Get(); }
+
+ public:
+  bool FillContains(const Point& point) override;
+
+ private:
+  Microsoft::WRL::ComPtr<ID2D1PathGeometry> geometry_;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/Painter.hpp b/include/cru/win/graphics/direct/Painter.hpp
new file mode 100644
index 00000000..93c768e7
--- /dev/null
+++ b/include/cru/win/graphics/direct/Painter.hpp
@@ -0,0 +1,60 @@
+#pragma once
+#include "ComResource.hpp"
+#include "Resource.hpp"
+
+#include "cru/platform/graphics/Painter.hpp"
+
+#include <vector>
+
+namespace cru::platform::graphics::win::direct {
+class D2DPainter : public DirectResource,
+                   public virtual IPainter,
+                   public virtual IComResource<ID2D1RenderTarget> {
+ public:
+  explicit D2DPainter(ID2D1RenderTarget* render_target);
+
+  CRU_DELETE_COPY(D2DPainter)
+  CRU_DELETE_MOVE(D2DPainter)
+
+  ~D2DPainter() override = default;
+
+ public:
+  ID2D1RenderTarget* GetComInterface() const override { return render_target_; }
+
+ public:
+  Matrix GetTransform() override;
+  void SetTransform(const platform::Matrix& matrix) override;
+
+  void Clear(const Color& color) override;
+
+  void StrokeRectangle(const Rect& rectangle, IBrush* brush,
+                       float width) override;
+  void FillRectangle(const Rect& rectangle, IBrush* brush) override;
+
+  void StrokeGeometry(IGeometry* geometry, IBrush* brush, float width) override;
+  void FillGeometry(IGeometry* geometry, IBrush* brush) override;
+
+  void DrawText(const Point& offset, ITextLayout* text_layout,
+                IBrush* brush) override;
+
+  void PushLayer(const Rect& bounds) override;
+
+  void PopLayer() override;
+
+  void EndDraw() override final;
+
+ protected:
+  virtual void DoEndDraw() = 0;
+
+ private:
+  bool IsValid() { return is_drawing_; }
+  void CheckValidation();
+
+ private:
+  ID2D1RenderTarget* render_target_;
+
+  std::vector<Microsoft::WRL::ComPtr<ID2D1Layer>> layers_;
+
+  bool is_drawing_ = true;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/Resource.hpp b/include/cru/win/graphics/direct/Resource.hpp
new file mode 100644
index 00000000..f60f373e
--- /dev/null
+++ b/include/cru/win/graphics/direct/Resource.hpp
@@ -0,0 +1,49 @@
+#pragma once
+#include "../../WinPreConfig.hpp"
+
+#include "cru/platform/graphics/Resource.hpp"
+
+#include <string_view>
+
+namespace cru::platform::graphics::win::direct {
+class DirectGraphFactory;
+
+class DirectResource : public Object, public virtual INativeResource {
+ public:
+  static constexpr std::u16string_view k_platform_id = u"Windows Direct";
+
+ protected:
+  DirectResource() = default;
+
+ public:
+  CRU_DELETE_COPY(DirectResource)
+  CRU_DELETE_MOVE(DirectResource)
+
+  ~DirectResource() override = default;
+
+ public:
+  std::u16string_view GetPlatformId() const final { return k_platform_id; }
+};
+
+class DirectGraphResource : public DirectResource,
+                            public virtual IGraphResource {
+ protected:
+  // Param factory can't be null.
+  explicit DirectGraphResource(DirectGraphFactory* factory);
+
+ public:
+  CRU_DELETE_COPY(DirectGraphResource)
+  CRU_DELETE_MOVE(DirectGraphResource)
+
+  ~DirectGraphResource() override = default;
+
+ public:
+  IGraphFactory* GetGraphFactory() final;
+
+ public:
+  DirectGraphFactory* GetDirectFactory() const { return factory_; }
+
+ private:
+  DirectGraphFactory* factory_;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/TextLayout.hpp b/include/cru/win/graphics/direct/TextLayout.hpp
new file mode 100644
index 00000000..3320431f
--- /dev/null
+++ b/include/cru/win/graphics/direct/TextLayout.hpp
@@ -0,0 +1,55 @@
+#pragma once
+#include "ComResource.hpp"
+#include "Resource.hpp"
+
+#include "cru/platform/graphics/TextLayout.hpp"
+
+#include <limits>
+#include <memory>
+
+namespace cru::platform::graphics::win::direct {
+class DWriteFont;
+
+class DWriteTextLayout : public DirectGraphResource,
+                         public virtual ITextLayout,
+                         public virtual IComResource<IDWriteTextLayout> {
+ public:
+  DWriteTextLayout(DirectGraphFactory* factory, std::shared_ptr<IFont> font,
+                   std::u16string text);
+
+  CRU_DELETE_COPY(DWriteTextLayout)
+  CRU_DELETE_MOVE(DWriteTextLayout)
+
+  ~DWriteTextLayout() override;
+
+ public:
+  IDWriteTextLayout* GetComInterface() const override {
+    return text_layout_.Get();
+  }
+
+ public:
+  std::u16string GetText() override;
+  std::u16string_view GetTextView() override;
+  void SetText(std::u16string new_text) override;
+
+  std::shared_ptr<IFont> GetFont() override;
+  void SetFont(std::shared_ptr<IFont> font) override;
+
+  void SetMaxWidth(float max_width) override;
+  void SetMaxHeight(float max_height) override;
+
+  Rect GetTextBounds() override;
+  // Return empty vector if text_range.count is 0. Text range could be in
+  // reverse direction, it should be normalized first in implementation.
+  std::vector<Rect> TextRangeRect(const TextRange& text_range) override;
+  Point TextSinglePoint(Index position, bool trailing) override;
+  TextHitTestResult HitTest(const Point& point) override;
+
+ private:
+  std::u16string text_;
+  std::shared_ptr<DWriteFont> font_;
+  float max_width_ = std::numeric_limits<float>::max();
+  float max_height_ = std::numeric_limits<float>::max();
+  Microsoft::WRL::ComPtr<IDWriteTextLayout> text_layout_;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/WindowPainter.hpp b/include/cru/win/graphics/direct/WindowPainter.hpp
new file mode 100644
index 00000000..b5faf7b5
--- /dev/null
+++ b/include/cru/win/graphics/direct/WindowPainter.hpp
@@ -0,0 +1,21 @@
+#pragma once
+#include "Painter.hpp"
+#include "WindowRenderTarget.hpp"
+
+namespace cru::platform::graphics::win::direct {
+class D2DWindowPainter : public graphics::win::direct::D2DPainter {
+ public:
+  explicit D2DWindowPainter(D2DWindowRenderTarget* window);
+
+  CRU_DELETE_COPY(D2DWindowPainter)
+  CRU_DELETE_MOVE(D2DWindowPainter)
+
+  ~D2DWindowPainter() override;
+
+ protected:
+  void DoEndDraw() override;
+
+ private:
+  D2DWindowRenderTarget* render_target_;
+};
+}  // namespace cru::platform::graphics::win::direct
diff --git a/include/cru/win/graphics/direct/WindowRenderTarget.hpp b/include/cru/win/graphics/direct/WindowRenderTarget.hpp
new file mode 100644
index 00000000..75b1bf20
--- /dev/null
+++ b/include/cru/win/graphics/direct/WindowRenderTarget.hpp
@@ -0,0 +1,42 @@
+#pragma once
+#include "Factory.hpp"
+
+namespace cru::platform::graphics::win::direct {
+// Represents a window render target.
+class D2DWindowRenderTarget : public Object {
+ public:
+  D2DWindowRenderTarget(gsl::not_null<DirectGraphFactory*> factory, HWND hwnd);
+
+  CRU_DELETE_COPY(D2DWindowRenderTarget)
+  CRU_DELETE_MOVE(D2DWindowRenderTarget)
+
+  ~D2DWindowRenderTarget() override = default;
+
+ public:
+  graphics::win::direct::DirectGraphFactory* GetDirectFactory() const {
+    return factory_;
+  }
+
+  ID2D1DeviceContext* GetD2D1DeviceContext() {
+    return d2d1_device_context_.Get();
+  }
+
+  void SetDpi(float x, float y);
+
+  // Resize the underlying buffer.
+  void ResizeBuffer(int width, int height);
+
+  // Present the data of the underlying buffer to the window.
+  void Present();
+
+ private:
+  void CreateTargetBitmap();
+
+ private:
+  DirectGraphFactory* factory_;
+  HWND hwnd_;
+  Microsoft::WRL::ComPtr<ID2D1DeviceContext> d2d1_device_context_;
+  Microsoft::WRL::ComPtr<IDXGISwapChain1> dxgi_swap_chain_;
+  Microsoft::WRL::ComPtr<ID2D1Bitmap1> target_bitmap_;
+};
+}  // namespace cru::platform::graphics::win::direct