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| author | Victoria Lease <violets@google.com> | 2012-07-26 15:50:40 -0700 |
|---|---|---|
| committer | Victoria Lease <violets@google.com> | 2012-07-26 15:52:24 -0700 |
| commit | d1280a29424e20a876a4995ff1446d57aac0289d (patch) | |
| tree | 50e18099a6e5cf9562f535de599d9b0e8316db66 | |
| parent | b4fad178c792687c50683880bcfaf507d54b30ca (diff) | |
| download | external_skia-d1280a29424e20a876a4995ff1446d57aac0289d.zip external_skia-d1280a29424e20a876a4995ff1446d57aac0289d.tar.gz external_skia-d1280a29424e20a876a4995ff1446d57aac0289d.tar.bz2 | |
Reduce embolden effect.
Certain CJK glyphs become essentially unreadable when emboldened at
sizes used by common apps like News/Weather. Reducing embolden
strength slightly makes these glyphs much more readable without
sacrificing bold/normal weight differentiation.
Bug: 6712857
Change-Id: Iec1c478171e33751be1cddbaae6a8ec30bb6cbab
| -rw-r--r-- | src/ports/SkFontHost_FreeType.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/ports/SkFontHost_FreeType.cpp b/src/ports/SkFontHost_FreeType.cpp index da00d51..6aa2120 100644 --- a/src/ports/SkFontHost_FreeType.cpp +++ b/src/ports/SkFontHost_FreeType.cpp @@ -63,6 +63,16 @@ #define SK_GAMMA_EXPONENT 2.2 #endif +// hand-tuned value to reduce outline embolden strength +#ifndef SK_OUTLINE_EMBOLDEN_DIVISOR + #ifdef SK_BUILD_FOR_ANDROID + #define SK_OUTLINE_EMBOLDEN_DIVISOR 34 + #else + #define SK_OUTLINE_EMBOLDEN_DIVISOR 24 + #endif +#endif + + #ifdef SK_DEBUG #define SkASSERT_CONTINUE(pred) \ do { \ @@ -892,7 +902,7 @@ FT_Error SkScalerContext_FreeType::setupSize() { void SkScalerContext_FreeType::emboldenOutline(FT_Outline* outline) { FT_Pos strength; strength = FT_MulFix(fFace->units_per_EM, fFace->size->metrics.y_scale) - / 24; + / SK_OUTLINE_EMBOLDEN_DIVISOR; FT_Outline_Embolden(outline, strength); } |