1 files changed, 113 insertions, 0 deletions
diff --git a/src/win/graph/direct/graph_factory.cpp b/src/win/graph/direct/graph_factory.cpp
new file mode 100644
index 00000000..2f2bb7a5
--- /dev/null
+++ b/src/win/graph/direct/graph_factory.cpp
@@ -0,0 +1,113 @@
+#include "cru/win/graph/direct/graph_factory.hpp"
+
+#include "cru/win/graph/direct/brush.hpp"
+#include "cru/win/graph/direct/exception.hpp"
+#include "cru/win/graph/direct/font.hpp"
+#include "cru/win/graph/direct/geometry.hpp"
+#include "cru/win/graph/direct/text_layout.hpp"
+
+#include <cassert>
+#include <cstdlib>
+#include <utility>
+
+namespace cru::platform::graph::win::direct {
+namespace {
+DirectGraphFactory* instance = nullptr;
+}
+}  // namespace cru::platform::graph::win::direct
+
+namespace cru::platform::graph {
+void GraphFactoryAutoDeleteExitHandler() {
+  const auto i =
+      ::cru::platform::graph::win::direct::instance;  // avoid long namespace
+                                                      // prefix
+  if (i == nullptr) return;
+  if (i->IsAutoDelete()) delete i;
+}
+
+GraphFactory* GraphFactory::CreateInstance() {
+  auto& i = ::cru::platform::graph::win::direct::instance;  // avoid long
+                                                            // namespace prefix
+  assert(i == nullptr);
+  i = new ::cru::platform::graph::win::direct::DirectGraphFactory();
+  std::atexit(&GraphFactoryAutoDeleteExitHandler);
+  return i;
+}
+
+GraphFactory* GraphFactory::GetInstance() {
+  return ::cru::platform::graph::win::direct::instance;
+}
+}  // namespace cru::platform::graph
+
+namespace cru::platform::graph::win::direct {
+DirectGraphFactory* DirectGraphFactory::GetInstance() { return instance; }
+
+DirectGraphFactory::DirectGraphFactory() {
+  UINT creation_flags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
+
+#ifdef CRU_DEBUG
+  creation_flags |= D3D11_CREATE_DEVICE_DEBUG;
+#endif
+
+  const D3D_FEATURE_LEVEL feature_levels[] = {
+      D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_1,
+      D3D_FEATURE_LEVEL_10_0, D3D_FEATURE_LEVEL_9_3,  D3D_FEATURE_LEVEL_9_2,
+      D3D_FEATURE_LEVEL_9_1};
+
+  Microsoft::WRL::ComPtr<ID3D11DeviceContext> d3d11_device_context;
+
+  ThrowIfFailed(D3D11CreateDevice(
+      nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, creation_flags,
+      feature_levels, ARRAYSIZE(feature_levels), D3D11_SDK_VERSION,
+      &d3d11_device_, nullptr, &d3d11_device_context));
+
+  Microsoft::WRL::ComPtr<IDXGIDevice> dxgi_device;
+  ThrowIfFailed(d3d11_device_->QueryInterface(dxgi_device.GetAddressOf()));
+
+  ThrowIfFailed(D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED,
+                                  IID_PPV_ARGS(&d2d1_factory_)));
+
+  Microsoft::WRL::ComPtr<ID2D1Device> d2d1_device;
+
+  ThrowIfFailed(d2d1_factory_->CreateDevice(dxgi_device.Get(), &d2d1_device));
+
+  ThrowIfFailed(d2d1_device->CreateDeviceContext(
+      D2D1_DEVICE_CONTEXT_OPTIONS_NONE, &d2d1_device_context_));
+
+  // Identify the physical adapter (GPU or card) this device is runs on.
+  Microsoft::WRL::ComPtr<IDXGIAdapter> dxgi_adapter;
+  ThrowIfFailed(dxgi_device->GetAdapter(&dxgi_adapter));
+
+  // Get the factory object that created the DXGI device.
+  ThrowIfFailed(dxgi_adapter->GetParent(IID_PPV_ARGS(&dxgi_factory_)));
+
+  ThrowIfFailed(DWriteCreateFactory(
+      DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
+      reinterpret_cast<IUnknown**>(dwrite_factory_.GetAddressOf())));
+
+  ThrowIfFailed(dwrite_factory_->GetSystemFontCollection(
+      &dwrite_system_font_collection_));
+}
+
+DirectGraphFactory::~DirectGraphFactory() { instance = nullptr; }
+
+D2DSolidColorBrush* DirectGraphFactory::CreateSolidColorBrush() {
+  return new D2DSolidColorBrush(this);
+}
+
+platform::graph::IGeometryBuilder* WinGraphFactory::CreateGeometryBuilder() {
+  return new WinGeometryBuilder(this);
+}
+
+platform::graph::IFontDescriptor* WinGraphFactory::CreateFontDescriptor(
+    const std::wstring_view& font_family, float font_size) {
+  return new WinFontDescriptor(this, font_family, font_size);
+}
+
+platform::graph::ITextLayout* WinGraphFactory::CreateTextLayout(
+    std::shared_ptr<platform::graph::IFontDescriptor> font, std::wstring text) {
+  const auto f = std::dynamic_pointer_cast<WinFontDescriptor>(font);
+  assert(f);
+  return new WinTextLayout(this, std::move(f), std::move(text));
+}
+}  // namespace cru::platform::graph::win::direct