1 files changed, 136 insertions, 0 deletions
diff --git a/gfx/2d/dw-extra.h b/gfx/2d/dw-extra.h
new file mode 100644
index 0000000000..c32173a714
--- /dev/null
+++ b/gfx/2d/dw-extra.h
@@ -0,0 +1,136 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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/. */
+
+/*
+ * New DirectWrite interfaces based on Win10 Fall Creators Update versions
+ * of dwrite_3.h and dcommon.h (from SDK 10.0.17061.0). This particular
+ * subset of declarations is intended to be just sufficient to compile the
+ * Gecko DirectWrite font code; it omits many other new interfaces, etc.
+ */
+
+#ifndef DWRITE_EXTRA_H
+#define DWRITE_EXTRA_H
+
+#pragma once
+
+interface IDWriteFontResource;
+interface IDWriteFontFaceReference1;
+
+enum DWRITE_GLYPH_IMAGE_FORMATS {
+  DWRITE_GLYPH_IMAGE_FORMATS_NONE = 0x00000000,
+  DWRITE_GLYPH_IMAGE_FORMATS_TRUETYPE = 0x00000001,
+  DWRITE_GLYPH_IMAGE_FORMATS_CFF = 0x00000002,
+  DWRITE_GLYPH_IMAGE_FORMATS_COLR = 0x00000004,
+  DWRITE_GLYPH_IMAGE_FORMATS_SVG = 0x00000008,
+  DWRITE_GLYPH_IMAGE_FORMATS_PNG = 0x00000010,
+  DWRITE_GLYPH_IMAGE_FORMATS_JPEG = 0x00000020,
+  DWRITE_GLYPH_IMAGE_FORMATS_TIFF = 0x00000040,
+  DWRITE_GLYPH_IMAGE_FORMATS_PREMULTIPLIED_B8G8R8A8 = 0x00000080,
+};
+
+#ifdef DEFINE_ENUM_FLAG_OPERATORS
+DEFINE_ENUM_FLAG_OPERATORS(DWRITE_GLYPH_IMAGE_FORMATS);
+#endif
+
+#define DWRITE_MAKE_FONT_AXIS_TAG(a, b, c, d) \
+  (static_cast<DWRITE_FONT_AXIS_TAG>(DWRITE_MAKE_OPENTYPE_TAG(a, b, c, d)))
+
+enum DWRITE_FONT_AXIS_TAG : UINT32 {
+  DWRITE_FONT_AXIS_TAG_WEIGHT = DWRITE_MAKE_FONT_AXIS_TAG('w', 'g', 'h', 't'),
+  DWRITE_FONT_AXIS_TAG_WIDTH = DWRITE_MAKE_FONT_AXIS_TAG('w', 'd', 't', 'h'),
+  DWRITE_FONT_AXIS_TAG_SLANT = DWRITE_MAKE_FONT_AXIS_TAG('s', 'l', 'n', 't'),
+  DWRITE_FONT_AXIS_TAG_OPTICAL_SIZE =
+      DWRITE_MAKE_FONT_AXIS_TAG('o', 'p', 's', 'z'),
+  DWRITE_FONT_AXIS_TAG_ITALIC = DWRITE_MAKE_FONT_AXIS_TAG('i', 't', 'a', 'l'),
+};
+
+enum DWRITE_FONT_AXIS_ATTRIBUTES {
+  DWRITE_FONT_AXIS_ATTRIBUTES_NONE = 0x0000,
+  DWRITE_FONT_AXIS_ATTRIBUTES_VARIABLE = 0x0001,
+  DWRITE_FONT_AXIS_ATTRIBUTES_HIDDEN = 0x0002,
+};
+
+struct DWRITE_FONT_AXIS_VALUE {
+  DWRITE_FONT_AXIS_TAG axisTag;
+  FLOAT value;
+};
+
+struct DWRITE_FONT_AXIS_RANGE {
+  DWRITE_FONT_AXIS_TAG axisTag;
+  FLOAT minValue;
+  FLOAT maxValue;
+};
+
+struct DWRITE_GLYPH_IMAGE_DATA {
+  const void* imageData;
+  UINT32 imageDataSize;
+  UINT32 uniqueDataId;
+  UINT32 pixelsPerEm;
+  D2D1_SIZE_U pixelSize;
+  D2D1_POINT_2L horizontalLeftOrigin;
+  D2D1_POINT_2L horizontalRightOrigin;
+  D2D1_POINT_2L verticalTopOrigin;
+  D2D1_POINT_2L verticalBottomOrigin;
+};
+
+interface DWRITE_DECLARE_INTERFACE("27F2A904-4EB8-441D-9678-0563F53E3E2F")
+    IDWriteFontFace4 : public IDWriteFontFace3 {
+  STDMETHOD_(DWRITE_GLYPH_IMAGE_FORMATS, GetGlyphImageFormats)() PURE;
+  STDMETHOD(GetGlyphImageFormats)
+  (UINT16 glyphId, UINT32 pixelsPerEmFirst, UINT32 pixelsPerEmLast,
+   _Out_ DWRITE_GLYPH_IMAGE_FORMATS * glyphImageFormats) PURE;
+  STDMETHOD(GetGlyphImageData)
+  (_In_ UINT16 glyphId, UINT32 pixelsPerEm,
+   DWRITE_GLYPH_IMAGE_FORMATS glyphImageFormat,
+   _Out_ DWRITE_GLYPH_IMAGE_DATA * glyphData,
+   _Outptr_result_maybenull_ void** glyphDataContext) PURE;
+  STDMETHOD_(void, ReleaseGlyphImageData)(void* glyphDataContext) PURE;
+};
+
+interface DWRITE_DECLARE_INTERFACE("98EFF3A5-B667-479A-B145-E2FA5B9FDC29")
+    IDWriteFontFace5 : public IDWriteFontFace4 {
+  STDMETHOD_(UINT32, GetFontAxisValueCount)() PURE;
+  STDMETHOD(GetFontAxisValues)
+  (_Out_writes_(fontAxisValueCount) DWRITE_FONT_AXIS_VALUE * fontAxisValues,
+   UINT32 fontAxisValueCount) PURE;
+  STDMETHOD_(BOOL, HasVariations)() PURE;
+  STDMETHOD(GetFontResource)
+  (_COM_Outptr_ IDWriteFontResource * *fontResource) PURE;
+  STDMETHOD_(BOOL, Equals)(IDWriteFontFace * fontFace) PURE;
+};
+
+interface DWRITE_DECLARE_INTERFACE("1F803A76-6871-48E8-987F-B975551C50F2")
+    IDWriteFontResource : public IUnknown {
+  STDMETHOD(GetFontFile)(_COM_Outptr_ IDWriteFontFile * *fontFile) PURE;
+  STDMETHOD_(UINT32, GetFontFaceIndex)() PURE;
+  STDMETHOD_(UINT32, GetFontAxisCount)() PURE;
+  STDMETHOD(GetDefaultFontAxisValues)
+  (_Out_writes_(fontAxisValueCount) DWRITE_FONT_AXIS_VALUE * fontAxisValues,
+   UINT32 fontAxisValueCount) PURE;
+  STDMETHOD(GetFontAxisRanges)
+  (_Out_writes_(fontAxisRangeCount) DWRITE_FONT_AXIS_RANGE * fontAxisRanges,
+   UINT32 fontAxisRangeCount) PURE;
+  STDMETHOD_(DWRITE_FONT_AXIS_ATTRIBUTES, GetFontAxisAttributes)
+  (UINT32 axisIndex) PURE;
+  STDMETHOD(GetAxisNames)
+  (UINT32 axisIndex, _COM_Outptr_ IDWriteLocalizedStrings * *names) PURE;
+  STDMETHOD_(UINT32, GetAxisValueNameCount)(UINT32 axisIndex) PURE;
+  STDMETHOD(GetAxisValueNames)
+  (UINT32 axisIndex, UINT32 axisValueIndex,
+   _Out_ DWRITE_FONT_AXIS_RANGE * fontAxisRange,
+   _COM_Outptr_ IDWriteLocalizedStrings * *names) PURE;
+  STDMETHOD_(BOOL, HasVariations)() PURE;
+  STDMETHOD(CreateFontFace)
+  (DWRITE_FONT_SIMULATIONS fontSimulations,
+   _In_reads_(fontAxisValueCount) DWRITE_FONT_AXIS_VALUE const* fontAxisValues,
+   UINT32 fontAxisValueCount, _COM_Outptr_ IDWriteFontFace5** fontFace) PURE;
+  STDMETHOD(CreateFontFaceReference)
+  (DWRITE_FONT_SIMULATIONS fontSimulations,
+   _In_reads_(fontAxisValueCount) DWRITE_FONT_AXIS_VALUE const* fontAxisValues,
+   UINT32 fontAxisValueCount,
+   _COM_Outptr_ IDWriteFontFaceReference1** fontFaceReference) PURE;
+};
+
+#endif /* DWRITE_EXTRA_H */