gfx/2d/dw-extra.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 /*
   7  * New DirectWrite interfaces based on Win10 Fall Creators Update versions
   8  * of dwrite_3.h and dcommon.h (from SDK 10.0.17061.0). This particular
   9  * subset of declarations is intended to be just sufficient to compile the
  10  * Gecko DirectWrite font code; it omits many other new interfaces, etc.
  11  */
  12
  13 #ifndef DWRITE_EXTRA_H
  14 #define DWRITE_EXTRA_H
  15
  16 #pragma once
  17
  18 interface IDWriteFontResource;
  19 interface IDWriteFontFaceReference1;
  20
  21 enum DWRITE_GLYPH_IMAGE_FORMATS {
  22   DWRITE_GLYPH_IMAGE_FORMATS_NONE = 0x00000000,
  23   DWRITE_GLYPH_IMAGE_FORMATS_TRUETYPE = 0x00000001,
  24   DWRITE_GLYPH_IMAGE_FORMATS_CFF = 0x00000002,
  25   DWRITE_GLYPH_IMAGE_FORMATS_COLR = 0x00000004,
  26   DWRITE_GLYPH_IMAGE_FORMATS_SVG = 0x00000008,
  27   DWRITE_GLYPH_IMAGE_FORMATS_PNG = 0x00000010,
  28   DWRITE_GLYPH_IMAGE_FORMATS_JPEG = 0x00000020,
  29   DWRITE_GLYPH_IMAGE_FORMATS_TIFF = 0x00000040,
  30   DWRITE_GLYPH_IMAGE_FORMATS_PREMULTIPLIED_B8G8R8A8 = 0x00000080,
  31 };
  32
  33 #ifdef DEFINE_ENUM_FLAG_OPERATORS
  34 DEFINE_ENUM_FLAG_OPERATORS(DWRITE_GLYPH_IMAGE_FORMATS);
  35 #endif
  36
  37 #define DWRITE_MAKE_FONT_AXIS_TAG(a, b, c, d) \
  38   (static_cast<DWRITE_FONT_AXIS_TAG>(DWRITE_MAKE_OPENTYPE_TAG(a, b, c, d)))
  39
  40 enum DWRITE_FONT_AXIS_TAG : UINT32 {
  41   DWRITE_FONT_AXIS_TAG_WEIGHT = DWRITE_MAKE_FONT_AXIS_TAG('w', 'g', 'h', 't'),
  42   DWRITE_FONT_AXIS_TAG_WIDTH = DWRITE_MAKE_FONT_AXIS_TAG('w', 'd', 't', 'h'),
  43   DWRITE_FONT_AXIS_TAG_SLANT = DWRITE_MAKE_FONT_AXIS_TAG('s', 'l', 'n', 't'),
  44   DWRITE_FONT_AXIS_TAG_OPTICAL_SIZE =
  45       DWRITE_MAKE_FONT_AXIS_TAG('o', 'p', 's', 'z'),
  46   DWRITE_FONT_AXIS_TAG_ITALIC = DWRITE_MAKE_FONT_AXIS_TAG('i', 't', 'a', 'l'),
  47 };
  48
  49 enum DWRITE_FONT_AXIS_ATTRIBUTES {
  50   DWRITE_FONT_AXIS_ATTRIBUTES_NONE = 0x0000,
  51   DWRITE_FONT_AXIS_ATTRIBUTES_VARIABLE = 0x0001,
  52   DWRITE_FONT_AXIS_ATTRIBUTES_HIDDEN = 0x0002,
  53 };
  54
  55 struct DWRITE_FONT_AXIS_VALUE {
  56   DWRITE_FONT_AXIS_TAG axisTag;
  57   FLOAT value;
  58 };
  59
  60 struct DWRITE_FONT_AXIS_RANGE {
  61   DWRITE_FONT_AXIS_TAG axisTag;
  62   FLOAT minValue;
  63   FLOAT maxValue;
  64 };
  65
  66 struct DWRITE_GLYPH_IMAGE_DATA {
  67   const void* imageData;
  68   UINT32 imageDataSize;
  69   UINT32 uniqueDataId;
  70   UINT32 pixelsPerEm;
  71   D2D1_SIZE_U pixelSize;
  72   D2D1_POINT_2L horizontalLeftOrigin;
  73   D2D1_POINT_2L horizontalRightOrigin;
  74   D2D1_POINT_2L verticalTopOrigin;
  75   D2D1_POINT_2L verticalBottomOrigin;
  76 };
  77
  78 interface DWRITE_DECLARE_INTERFACE("27F2A904-4EB8-441D-9678-0563F53E3E2F")
  79     IDWriteFontFace4 : public IDWriteFontFace3 {
  80   STDMETHOD_(DWRITE_GLYPH_IMAGE_FORMATS, GetGlyphImageFormats)() PURE;
  81   STDMETHOD(GetGlyphImageFormats)
  82   (UINT16 glyphId, UINT32 pixelsPerEmFirst, UINT32 pixelsPerEmLast,
  83    _Out_ DWRITE_GLYPH_IMAGE_FORMATS* glyphImageFormats) PURE;
  84   STDMETHOD(GetGlyphImageData)
  85   (_In_ UINT16 glyphId, UINT32 pixelsPerEm,
  86    DWRITE_GLYPH_IMAGE_FORMATS glyphImageFormat,
  87    _Out_ DWRITE_GLYPH_IMAGE_DATA* glyphData,
  88    _Outptr_result_maybenull_ void** glyphDataContext) PURE;
  89   STDMETHOD_(void, ReleaseGlyphImageData)(void* glyphDataContext) PURE;
  90 };
  91
  92 interface DWRITE_DECLARE_INTERFACE("98EFF3A5-B667-479A-B145-E2FA5B9FDC29")
  93     IDWriteFontFace5 : public IDWriteFontFace4 {
  94   STDMETHOD_(UINT32, GetFontAxisValueCount)() PURE;
  95   STDMETHOD(GetFontAxisValues)
  96   (_Out_writes_(fontAxisValueCount) DWRITE_FONT_AXIS_VALUE* fontAxisValues,
  97    UINT32 fontAxisValueCount) PURE;
  98   STDMETHOD_(BOOL, HasVariations)() PURE;
  99   STDMETHOD(GetFontResource)
 100   (_COM_Outptr_ IDWriteFontResource** fontResource) PURE;
 101   STDMETHOD_(BOOL, Equals)(IDWriteFontFace* fontFace) PURE;
 102 };
 103
 104 interface DWRITE_DECLARE_INTERFACE("1F803A76-6871-48E8-987F-B975551C50F2")
 105     IDWriteFontResource : public IUnknown {
 106   STDMETHOD(GetFontFile)(_COM_Outptr_ IDWriteFontFile** fontFile) PURE;
 107   STDMETHOD_(UINT32, GetFontFaceIndex)() PURE;
 108   STDMETHOD_(UINT32, GetFontAxisCount)() PURE;
 109   STDMETHOD(GetDefaultFontAxisValues)
 110   (_Out_writes_(fontAxisValueCount) DWRITE_FONT_AXIS_VALUE* fontAxisValues,
 111    UINT32 fontAxisValueCount) PURE;
 112   STDMETHOD(GetFontAxisRanges)
 113   (_Out_writes_(fontAxisRangeCount) DWRITE_FONT_AXIS_RANGE* fontAxisRanges,
 114    UINT32 fontAxisRangeCount) PURE;
 115   STDMETHOD_(DWRITE_FONT_AXIS_ATTRIBUTES, GetFontAxisAttributes)
 116   (UINT32 axisIndex) PURE;
 117   STDMETHOD(GetAxisNames)
 118   (UINT32 axisIndex, _COM_Outptr_ IDWriteLocalizedStrings** names) PURE;
 119   STDMETHOD_(UINT32, GetAxisValueNameCount)(UINT32 axisIndex) PURE;
 120   STDMETHOD(GetAxisValueNames)
 121   (UINT32 axisIndex, UINT32 axisValueIndex,
 122    _Out_ DWRITE_FONT_AXIS_RANGE* fontAxisRange,
 123    _COM_Outptr_ IDWriteLocalizedStrings** names) PURE;
 124   STDMETHOD_(BOOL, HasVariations)() PURE;
 125   STDMETHOD(CreateFontFace)
 126   (DWRITE_FONT_SIMULATIONS fontSimulations,
 127    _In_reads_(fontAxisValueCount) DWRITE_FONT_AXIS_VALUE const* fontAxisValues,
 128    UINT32 fontAxisValueCount, _COM_Outptr_ IDWriteFontFace5** fontFace) PURE;
 129   STDMETHOD(CreateFontFaceReference)
 130   (DWRITE_FONT_SIMULATIONS fontSimulations,
 131    _In_reads_(fontAxisValueCount) DWRITE_FONT_AXIS_VALUE const* fontAxisValues,
 132    UINT32 fontAxisValueCount,
 133    _COM_Outptr_ IDWriteFontFaceReference1** fontFaceReference) PURE;
 134 };
 135
 136 #endif /* DWRITE_EXTRA_H */