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| author | caryclark <caryclark@google.com> | 2016-04-04 12:27:16 -0700 |
|---|---|---|
| committer | Commit bot <commit-bot@chromium.org> | 2016-04-04 12:27:17 -0700 |
| commit | f8a5ef3056619c1a8e7d1108ac3720c97ca8e67d (patch) | |
| tree | 8cdf3d66a50aa8a363631d62762b64f42d4258d7 /core/include | |
| parent | 221caf6f6f9810cbc0e0c4c50af9b036a052ae13 (diff) | |
| download | pdfium-f8a5ef3056619c1a8e7d1108ac3720c97ca8e67d.tar.xz | |
Support the device font cache
Reuse the Skia typeface on sucessive text draw calls.
This reduces the SKP size by 100x for some documents.
Note that this does not use a smart pointer for the
Skia typeface object. The downside of doing so is that
it requires all clients that include fx_font.h to also
have access to Skia.
In this specific case, it is preferable to have a
forward declared class to isolate Skia from the rest of PDFium.
R=dsinclair,tsepez@chromium.org
Review URL: https://codereview.chromium.org/1837113004
Diffstat (limited to 'core/include')
| -rw-r--r-- | core/include/fxge/fx_font.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/core/include/fxge/fx_font.h b/core/include/fxge/fx_font.h index c52e614e97..4e2b97e677 100644 --- a/core/include/fxge/fx_font.h +++ b/core/include/fxge/fx_font.h @@ -27,6 +27,12 @@ class CFX_SubstFont; class CTTFontDesc; class IFX_SystemFontInfo; +#ifdef _SKIA_SUPPORT_ +class SkTypeface; + +using CFX_TypeFace = SkTypeface; +#endif + #define FXFONT_FIXED_PITCH 0x01 #define FXFONT_SERIF 0x02 #define FXFONT_SYMBOLIC 0x04 @@ -452,6 +458,9 @@ class CFX_FontCache { CFX_FaceCache* GetCachedFace(CFX_Font* pFont); void ReleaseCachedFace(CFX_Font* pFont); void FreeCache(FX_BOOL bRelease = FALSE); +#ifdef _SKIA_SUPPORT_ + CFX_TypeFace* GetDeviceCache(CFX_Font* pFont); +#endif private: using CFX_FTCacheMap = std::map<FXFT_Face, CFX_CountedFaceCache*>; @@ -490,6 +499,10 @@ class CFX_FaceCache { uint32_t glyph_index, int dest_width); +#ifdef _SKIA_SUPPORT_ + CFX_TypeFace* GetDeviceCache(CFX_Font* pFont); +#endif + private: CFX_GlyphBitmap* RenderGlyph(CFX_Font* pFont, uint32_t glyph_index, @@ -516,6 +529,9 @@ class CFX_FaceCache { std::map<CFX_ByteString, CFX_SizeGlyphCache*> m_SizeMap; std::map<uint32_t, CFX_PathData*> m_PathMap; CFX_DIBitmap* m_pBitmap; +#ifdef _SKIA_SUPPORT_ + CFX_TypeFace* m_pTypeface; +#endif }; struct FXTEXT_GLYPHPOS { |