1 files changed, 103 insertions, 0 deletions
diff --git a/gfx/2d/RadialGradientEffectD2D1.h b/gfx/2d/RadialGradientEffectD2D1.h
new file mode 100644
index 0000000000..a49671e6bd
--- /dev/null
+++ b/gfx/2d/RadialGradientEffectD2D1.h
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZILLA_GFX_RADIALGRADIENTEFFECTD2D1_H_
+#define MOZILLA_GFX_RADIALGRADIENTEFFECTD2D1_H_
+
+#include <d2d1_1.h>
+#include <d2d1effectauthor.h>
+#include <d2d1effecthelpers.h>
+
+#include "2D.h"
+#include "mozilla/Attributes.h"
+
+// {97143DC6-CBC4-4DD4-A8BA-13342B0BA46D}
+DEFINE_GUID(CLSID_RadialGradientEffect, 0x97143dc6, 0xcbc4, 0x4dd4, 0xa8, 0xba,
+            0x13, 0x34, 0x2b, 0xb, 0xa4, 0x6d);
+
+// Macro to keep our class nice and clean.
+#define SIMPLE_PROP(type, name)              \
+ public:                                     \
+  HRESULT Set##name(type a##name) {          \
+    m##name = a##name;                       \
+    return S_OK;                             \
+  }                                          \
+  type Get##name() const { return m##name; } \
+                                             \
+ private:                                    \
+  type m##name;
+
+namespace mozilla {
+namespace gfx {
+
+enum {
+  RADIAL_PROP_STOP_COLLECTION = 0,
+  RADIAL_PROP_CENTER_1,
+  RADIAL_PROP_CENTER_2,
+  RADIAL_PROP_RADIUS_1,
+  RADIAL_PROP_RADIUS_2,
+  RADIAL_PROP_TRANSFORM
+};
+
+class RadialGradientEffectD2D1 final : public ID2D1EffectImpl,
+                                       public ID2D1DrawTransform {
+ public:
+  // ID2D1EffectImpl
+  IFACEMETHODIMP Initialize(ID2D1EffectContext* pContextInternal,
+                            ID2D1TransformGraph* pTransformGraph);
+  IFACEMETHODIMP PrepareForRender(D2D1_CHANGE_TYPE changeType);
+  IFACEMETHODIMP SetGraph(ID2D1TransformGraph* pGraph);
+
+  // IUnknown
+  IFACEMETHODIMP_(ULONG) AddRef();
+  IFACEMETHODIMP_(ULONG) Release();
+  IFACEMETHODIMP QueryInterface(REFIID riid, void** ppOutput);
+
+  // ID2D1Transform
+  IFACEMETHODIMP MapInputRectsToOutputRect(
+      const D2D1_RECT_L* pInputRects, const D2D1_RECT_L* pInputOpaqueSubRects,
+      UINT32 inputRectCount, D2D1_RECT_L* pOutputRect,
+      D2D1_RECT_L* pOutputOpaqueSubRect);
+  IFACEMETHODIMP MapOutputRectToInputRects(const D2D1_RECT_L* pOutputRect,
+                                           D2D1_RECT_L* pInputRects,
+                                           UINT32 inputRectCount) const;
+  IFACEMETHODIMP MapInvalidRect(UINT32 inputIndex, D2D1_RECT_L invalidInputRect,
+                                D2D1_RECT_L* pInvalidOutputRect) const;
+
+  // ID2D1TransformNode
+  IFACEMETHODIMP_(UINT32) GetInputCount() const { return 1; }
+
+  // ID2D1DrawTransform
+  IFACEMETHODIMP SetDrawInfo(ID2D1DrawInfo* pDrawInfo);
+
+  static HRESULT Register(ID2D1Factory1* aFactory);
+  static void Unregister(ID2D1Factory1* aFactory);
+  static HRESULT __stdcall CreateEffect(IUnknown** aEffectImpl);
+
+  HRESULT SetStopCollection(IUnknown* aStopCollection);
+  IUnknown* GetStopCollection() const { return mStopCollection; }
+
+ private:
+  already_AddRefed<ID2D1ResourceTexture> CreateGradientTexture();
+
+  RadialGradientEffectD2D1();
+
+  uint32_t mRefCount;
+  RefPtr<ID2D1GradientStopCollection> mStopCollection;
+  RefPtr<ID2D1EffectContext> mEffectContext;
+  RefPtr<ID2D1DrawInfo> mDrawInfo;
+  SIMPLE_PROP(D2D1_VECTOR_2F, Center1);
+  SIMPLE_PROP(D2D1_VECTOR_2F, Center2);
+  SIMPLE_PROP(FLOAT, Radius1);
+  SIMPLE_PROP(FLOAT, Radius2);
+  SIMPLE_PROP(D2D_MATRIX_3X2_F, Transform);
+};
+
+}  // namespace gfx
+}  // namespace mozilla
+#undef SIMPLE_PROP
+
+#endif