bungeman | 51daa25 | 2014-06-05 13:38:45 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #ifndef SkScalarContext_win_dw_DEFINED |
| 9 | #define SkScalarContext_win_dw_DEFINED |
| 10 | |
| 11 | #include "SkScalar.h" |
| 12 | #include "SkScalerContext.h" |
| 13 | #include "SkTypeface_win_dw.h" |
| 14 | #include "SkTypes.h" |
| 15 | |
| 16 | #include <dwrite.h> |
| 17 | |
| 18 | struct SkGlyph; |
| 19 | class SkDescriptor; |
| 20 | |
| 21 | class SkScalerContext_DW : public SkScalerContext { |
| 22 | public: |
| 23 | SkScalerContext_DW(DWriteFontTypeface*, const SkDescriptor* desc); |
| 24 | virtual ~SkScalerContext_DW(); |
| 25 | |
| 26 | protected: |
| 27 | virtual unsigned generateGlyphCount() SK_OVERRIDE; |
| 28 | virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; |
| 29 | virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; |
| 30 | virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; |
| 31 | virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; |
| 32 | virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; |
bungeman | 4107806 | 2014-07-07 08:16:37 -0700 | [diff] [blame] | 33 | virtual void generateFontMetrics(SkPaint::FontMetrics*) SK_OVERRIDE; |
bungeman | 51daa25 | 2014-06-05 13:38:45 -0700 | [diff] [blame] | 34 | |
| 35 | private: |
Ben Wagner | b2f7fce | 2014-08-27 19:17:41 -0400 | [diff] [blame^] | 36 | const void* drawDWMask(const SkGlyph& glyph, |
| 37 | DWRITE_RENDERING_MODE renderingMode, |
| 38 | DWRITE_TEXTURE_TYPE textureType); |
| 39 | |
| 40 | void getBoundingBox(SkGlyph* glyph, |
| 41 | DWRITE_RENDERING_MODE renderingMode, |
| 42 | DWRITE_TEXTURE_TYPE textureType, |
| 43 | RECT* bbox); |
bungeman | 51daa25 | 2014-06-05 13:38:45 -0700 | [diff] [blame] | 44 | |
| 45 | SkTDArray<uint8_t> fBits; |
| 46 | /** The total matrix without the text height scale. */ |
| 47 | SkMatrix fSkXform; |
| 48 | /** The total matrix without the text height scale. */ |
| 49 | DWRITE_MATRIX fXform; |
| 50 | /** The non-rotational part of total matrix without the text height scale. |
| 51 | * This is used to find the magnitude of gdi compatible advances. |
| 52 | */ |
| 53 | DWRITE_MATRIX fGsA; |
| 54 | /** The inverse of the rotational part of the total matrix. |
| 55 | * This is used to find the direction of gdi compatible advances. |
| 56 | */ |
| 57 | SkMatrix fG_inv; |
| 58 | /** The text size to render with. */ |
| 59 | SkScalar fTextSizeRender; |
| 60 | /** The text size to measure with. */ |
| 61 | SkScalar fTextSizeMeasure; |
| 62 | SkAutoTUnref<DWriteFontTypeface> fTypeface; |
| 63 | int fGlyphCount; |
| 64 | DWRITE_RENDERING_MODE fRenderingMode; |
| 65 | DWRITE_TEXTURE_TYPE fTextureType; |
| 66 | DWRITE_MEASURING_MODE fMeasuringMode; |
| 67 | }; |
| 68 | |
| 69 | #endif |