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1 files changed, 79 insertions, 0 deletions

diff --git a/src/graph/graph_manager.cpp b/src/graph/graph_manager.cpp
new file mode 100644
index 00000000..ecc60915
--- /dev/null
+++ b/src/graph/graph_manager.cpp
@@ -0,0 +1,79 @@
+#include "graph_manager.hpp"
+
+#include <d2d1_2.h>
+#include <d3d11.h>
+#include <dwrite.h>
+#include <dxgi1_2.h>
+#include <wrl/client.h>
+
+#include "application.hpp"
+#include "exception.hpp"
+#include "util/com_util.hpp"
+#include "window_render_target.hpp"
+
+namespace cru::graph {
+
+GraphManager* GraphManager::GetInstance() {
+  return Application::GetInstance()->ResolveSingleton<GraphManager>(
+      [](auto) { return new GraphManager{}; });
+}
+
+GraphManager::GraphManager() {
+  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;
+  ID3D11Device* d3d11_device;
+
+  ThrowIfFailed(D3D11CreateDevice(
+      nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, creation_flags,
+      feature_levels, ARRAYSIZE(feature_levels), D3D11_SDK_VERSION,
+      &d3d11_device, nullptr, &d3d11_device_context));
+  this->d3d11_device_ = util::CreateComSharedPtr(d3d11_device);
+
+  Microsoft::WRL::ComPtr<IDXGIDevice> dxgi_device;
+  ThrowIfFailed(d3d11_device_->QueryInterface(dxgi_device.GetAddressOf()));
+
+  ID2D1Factory1* d2d1_factory;
+  ThrowIfFailed(D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED,
+                                  IID_PPV_ARGS(&d2d1_factory)));
+  this->d2d1_factory_ = util::CreateComSharedPtr(d2d1_factory);
+
+  Microsoft::WRL::ComPtr<ID2D1Device> d2d1_device;
+
+  ThrowIfFailed(d2d1_factory_->CreateDevice(dxgi_device.Get(), &d2d1_device));
+
+  ID2D1DeviceContext* d2d1_device_context;
+  ThrowIfFailed(d2d1_device->CreateDeviceContext(
+      D2D1_DEVICE_CONTEXT_OPTIONS_NONE, &d2d1_device_context));
+  this->d2d1_device_context_ = util::CreateComSharedPtr(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));
+
+  IDXGIFactory2* dxgi_factory;
+  // Get the factory object that created the DXGI device.
+  ThrowIfFailed(dxgi_adapter->GetParent(IID_PPV_ARGS(&dxgi_factory)));
+  this->dxgi_factory_ = util::CreateComSharedPtr(dxgi_factory);
+
+  IDWriteFactory* dwrite_factory;
+  ThrowIfFailed(
+      DWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
+                          reinterpret_cast<IUnknown**>(&dwrite_factory)));
+  this->dwrite_factory_ = util::CreateComSharedPtr(dwrite_factory);
+
+  IDWriteFontCollection* font_collection;
+  ThrowIfFailed(dwrite_factory_->GetSystemFontCollection(&font_collection));
+  this->dwrite_system_font_collection_ =
+      util::CreateComSharedPtr(font_collection);
+}
+}  // namespace cru::graph