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//
// copied from:
// https://hg.mozilla.org/mozilla-central/file/704f09a557a4dfc9057f1672b711789f64f74a82/gfx/2d/dw-extra.h
//
/* -*- 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 */
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