From 00d3edd7d3ad289c7137063051d3d43a8e09b6b2 Mon Sep 17 00:00:00 2001
From: Bas Schouten <bschouten@mozilla.com>
Date: Sun, 14 Sep 2014 23:51:27 +0200
Subject: [PATCH] Bug 1046550 - Part 1: Add content device to
 gfxWindowsPlatform. r=mattwoodrow

---
 gfx/thebes/gfxWindowsPlatform.cpp | 106 ++++++++++++++++++++----------
 gfx/thebes/gfxWindowsPlatform.h   |   3 +
 2 files changed, 76 insertions(+), 33 deletions(-)

diff --git a/gfx/thebes/gfxWindowsPlatform.cpp b/gfx/thebes/gfxWindowsPlatform.cpp
index 2c44930c9794..ae83f45c8cbb 100644
--- a/gfx/thebes/gfxWindowsPlatform.cpp
+++ b/gfx/thebes/gfxWindowsPlatform.cpp
@@ -1366,43 +1366,23 @@ gfxWindowsPlatform::GetD3D11Device()
     return mD3D11Device;
   }
 
-  mD3D11DeviceInitialized = true;
-
-  nsModuleHandle d3d11Module(LoadLibrarySystem32(L"d3d11.dll"));
-  decltype(D3D11CreateDevice)* d3d11CreateDevice = (decltype(D3D11CreateDevice)*)
-    GetProcAddress(d3d11Module, "D3D11CreateDevice");
-
-  if (!d3d11CreateDevice) {
-    return nullptr;
-  }
-
-  nsTArray<D3D_FEATURE_LEVEL> featureLevels;
-  if (IsWin8OrLater()) {
-    featureLevels.AppendElement(D3D_FEATURE_LEVEL_11_1);
-  }
-  featureLevels.AppendElement(D3D_FEATURE_LEVEL_11_0);
-  featureLevels.AppendElement(D3D_FEATURE_LEVEL_10_1);
-  featureLevels.AppendElement(D3D_FEATURE_LEVEL_10_0);
-  featureLevels.AppendElement(D3D_FEATURE_LEVEL_9_3);
-
-  RefPtr<IDXGIAdapter1> adapter = GetDXGIAdapter();
-
-  if (!adapter) {
-    return nullptr;
-  }
-
-  HRESULT hr = d3d11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, nullptr,
-                                 D3D11_CREATE_DEVICE_BGRA_SUPPORT,
-                                 featureLevels.Elements(), featureLevels.Length(),
-                                 D3D11_SDK_VERSION, byRef(mD3D11Device), nullptr, nullptr);
-
-  // We leak these everywhere and we need them our entire runtime anyway, let's
-  // leak it here as well.
-  d3d11Module.disown();
+  InitD3D11Devices();
 
   return mD3D11Device;
 }
 
+ID3D11Device*
+gfxWindowsPlatform::GetD3D11ContentDevice()
+{
+  if (mD3D11DeviceInitialized) {
+    return mD3D11ContentDevice;
+  }
+
+  InitD3D11Devices();
+
+  return mD3D11ContentDevice;
+}
+
 ReadbackManagerD3D11*
 gfxWindowsPlatform::GetReadbackManager()
 {
@@ -1487,3 +1467,63 @@ gfxWindowsPlatform::GetDXGIAdapter()
 
   return mAdapter;
 }
+
+void
+gfxWindowsPlatform::InitD3D11Devices()
+{
+  mD3D11DeviceInitialized = true;
+
+  nsModuleHandle d3d11Module(LoadLibrarySystem32(L"d3d11.dll"));
+  decltype(D3D11CreateDevice)* d3d11CreateDevice = (decltype(D3D11CreateDevice)*)
+    GetProcAddress(d3d11Module, "D3D11CreateDevice");
+
+  if (!d3d11CreateDevice) {
+    return;
+  }
+
+  nsTArray<D3D_FEATURE_LEVEL> featureLevels;
+  if (IsWin8OrLater()) {
+    featureLevels.AppendElement(D3D_FEATURE_LEVEL_11_1);
+  }
+  featureLevels.AppendElement(D3D_FEATURE_LEVEL_11_0);
+  featureLevels.AppendElement(D3D_FEATURE_LEVEL_10_1);
+  featureLevels.AppendElement(D3D_FEATURE_LEVEL_10_0);
+  featureLevels.AppendElement(D3D_FEATURE_LEVEL_9_3);
+
+  RefPtr<IDXGIAdapter1> adapter = GetDXGIAdapter();
+
+  if (!adapter) {
+    return;
+  }
+
+  HRESULT hr;
+
+  hr = d3d11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, nullptr,
+                         D3D11_CREATE_DEVICE_BGRA_SUPPORT,
+                         featureLevels.Elements(), featureLevels.Length(),
+                         D3D11_SDK_VERSION, byRef(mD3D11Device), nullptr, nullptr);
+
+  if (FAILED(hr)) {
+    return;
+  }
+
+#ifdef USE_D2D1_1
+  if (Factory::SupportsD2D1()) {
+    hr = d3d11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, nullptr,
+                           D3D11_CREATE_DEVICE_BGRA_SUPPORT,
+                           featureLevels.Elements(), featureLevels.Length(),
+                           D3D11_SDK_VERSION, byRef(mD3D11ContentDevice), nullptr, nullptr);
+
+    if (FAILED(hr)) {
+      mD3D11Device = nullptr;
+      return;
+    }
+
+    Factory::SetDirect3D11Device(mD3D11ContentDevice);
+  }
+#endif
+
+  // We leak these everywhere and we need them our entire runtime anyway, let's
+  // leak it here as well.
+  d3d11Module.disown();
+}
\ No newline at end of file
diff --git a/gfx/thebes/gfxWindowsPlatform.h b/gfx/thebes/gfxWindowsPlatform.h
index bc3a8e2c360f..ec7658104264 100644
--- a/gfx/thebes/gfxWindowsPlatform.h
+++ b/gfx/thebes/gfxWindowsPlatform.h
@@ -261,6 +261,7 @@ public:
     ID3D10Device1 *GetD3D10Device() { return mD2DDevice ? cairo_d2d_device_get_device(mD2DDevice) : nullptr; }
 #endif
     ID3D11Device *GetD3D11Device();
+    ID3D11Device *GetD3D11ContentDevice();
 
     mozilla::layers::ReadbackManagerD3D11* GetReadbackManager();
 
@@ -274,6 +275,7 @@ protected:
 
 private:
     void Init();
+    void InitD3D11Devices();
     IDXGIAdapter1 *GetDXGIAdapter();
 
     bool mUseDirectWrite;
@@ -291,6 +293,7 @@ private:
     mozilla::RefPtr<IDXGIAdapter1> mAdapter;
     nsRefPtr<mozilla::layers::DeviceManagerD3D9> mDeviceManager;
     mozilla::RefPtr<ID3D11Device> mD3D11Device;
+    mozilla::RefPtr<ID3D11Device> mD3D11ContentDevice;
     bool mD3D11DeviceInitialized;
     mozilla::RefPtr<mozilla::layers::ReadbackManagerD3D11> mD3D11ReadbackManager;