| /* |
| * Copyright 2006-2012 The Android Open Source Project |
| * Copyright 2012 Mozilla Foundation |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKFONTHOST_FREETYPE_COMMON_H_ |
| #define SKFONTHOST_FREETYPE_COMMON_H_ |
| |
| #include "SkGlyph.h" |
| #include "SkScalerContext.h" |
| #include <ft2build.h> |
| #include FT_FREETYPE_H |
| |
| #ifdef SK_DEBUG |
| #define SkASSERT_CONTINUE(pred) \ |
| do { \ |
| if (!(pred)) \ |
| SkDebugf("file %s:%d: assert failed '" #pred "'\n", __FILE__, __LINE__); \ |
| } while (false) |
| #else |
| #define SkASSERT_CONTINUE(pred) |
| #endif |
| |
| |
| class SkScalerContext_FreeType_Base : public SkScalerContext { |
| public: |
| // See http://freetype.sourceforge.net/freetype2/docs/reference/ft2-bitmap_handling.html#FT_Bitmap_Embolden |
| // This value was chosen by eyeballing the result in Firefox and trying to match it. |
| static const FT_Pos kBitmapEmboldenStrength = 1 << 6; |
| |
| SkScalerContext_FreeType_Base(const SkDescriptor *desc) |
| : SkScalerContext(desc) |
| {} |
| |
| protected: |
| void generateGlyphImage(FT_Face face, const SkGlyph& glyph); |
| void generateGlyphPath(FT_Face face, const SkGlyph& glyph, SkPath* path); |
| void emboldenOutline(FT_Face face, FT_Outline* outline); |
| }; |
| |
| #endif // SKFONTHOST_FREETYPE_COMMON_H_ |