gecko-dev/gfx/2d/dw-extra.h
2018-02-26 21:21:01 +00:00

152 lines
5.5 KiB
C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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;
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 */