normalize common filenames in VideoBackends/D3D

Source/Core/VideoBackends/D3D/D3DSwapChain.cpp

@@ -0,0 +1,52 @@
+// Copyright 2019 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "VideoBackends/D3D/D3DSwapChain.h"
+#include "VideoBackends/D3D/DXTexture.h"
+
+namespace DX11
+{
+SwapChain::SwapChain(const WindowSystemInfo& wsi, IDXGIFactory* dxgi_factory,
+                     ID3D11Device* d3d_device)
+    : D3DCommon::SwapChain(wsi, dxgi_factory, d3d_device)
+{
+}
+
+SwapChain::~SwapChain() = default;
+
+std::unique_ptr<SwapChain> SwapChain::Create(const WindowSystemInfo& wsi)
+{
+  std::unique_ptr<SwapChain> swap_chain =
+      std::make_unique<SwapChain>(wsi, D3D::dxgi_factory.Get(), D3D::device.Get());
+  if (!swap_chain->CreateSwapChain(WantsStereo()))
+    return nullptr;
+
+  return swap_chain;
+}
+
+bool SwapChain::CreateSwapChainBuffers()
+{
+  ComPtr<ID3D11Texture2D> texture;
+  HRESULT hr = m_swap_chain->GetBuffer(0, IID_PPV_ARGS(&texture));
+  CHECK(SUCCEEDED(hr), "Get swap chain buffer");
+  if (FAILED(hr))
+    return false;
+
+  m_texture = DXTexture::CreateAdopted(std::move(texture));
+  if (!m_texture)
+    return false;
+
+  m_framebuffer = DXFramebuffer::Create(m_texture.get(), nullptr);
+  if (!m_framebuffer)
+    return false;
+
+  return true;
+}
+
+void SwapChain::DestroySwapChainBuffers()
+{
+  m_framebuffer.reset();
+  m_texture.reset();
+}
+}  // namespace DX11