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(svn r25493) -Codechange: support for the safer variant of ICU's getFontTable

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rubidium
2013-06-27 21:21:47 +00:00
parent 6f359bc1f0
commit 0c14a586bd
4 changed files with 24 additions and 11 deletions
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23
src/fontcache.cpp
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@@ -77,7 +77,7 @@ public:
virtual uint GetGlyphWidth(GlyphID key);
virtual bool GetDrawGlyphShadow();
virtual GlyphID MapCharToGlyph(WChar key) { return SPRITE_GLYPH | key; }
virtual const void *GetFontTable(uint32 tag) { return NULL; }
virtual const void *GetFontTable(uint32 tag, size_t &length) { length = 0; return NULL; }
};
/**
@@ -191,7 +191,8 @@ class FreeTypeFontCache : public FontCache {
private:
FT_Face face; ///< The font face associated with this font.
SmallMap<uint32, const void*> font_tables; ///< Cached font tables.
typedef SmallMap<uint32, SmallPair<size_t, const void*>> FontTable; ///< Table with font table cache
FontTable font_tables; ///< Cached font tables.
/** Container for information about a glyph. */
struct GlyphEntry {
@@ -229,7 +230,7 @@ public:
virtual uint GetGlyphWidth(GlyphID key);
virtual bool GetDrawGlyphShadow();
virtual GlyphID MapCharToGlyph(WChar key);
virtual const void *GetFontTable(uint32 tag);
virtual const void *GetFontTable(uint32 tag, size_t &length);
};
FT_Library _library = NULL;
@@ -363,8 +364,8 @@ FreeTypeFontCache::~FreeTypeFontCache()
FT_Done_Face(this->face);
this->ClearFontCache();
for (SmallPair<uint32, const void *> *iter = this->font_tables.Begin(); iter != this->font_tables.End(); iter++) {
free(iter->second);
for (FontTable::iterator iter = this->font_tables.Begin(); iter != this->font_tables.End(); iter++) {
free(iter->second.second);
}
}
@@ -552,10 +553,13 @@ GlyphID FreeTypeFontCache::MapCharToGlyph(WChar key)
return FT_Get_Char_Index(this->face, key);
}
const void *FreeTypeFontCache::GetFontTable(uint32 tag)
const void *FreeTypeFontCache::GetFontTable(uint32 tag, size_t &length)
{
const SmallPair<uint32, const void *> *iter = this->font_tables.Find(tag);
if (iter != this->font_tables.End()) return iter->second;
const FontTable::iterator iter = this->font_tables.Find(tag);
if (iter != this->font_tables.End()) {
length = iter->second.first;
return iter->second.second;
}
FT_ULong len = 0;
FT_Byte *result = NULL;
@@ -566,8 +570,9 @@ const void *FreeTypeFontCache::GetFontTable(uint32 tag)
result = MallocT<FT_Byte>(len);
FT_Load_Sfnt_Table(this->face, tag, 0, result, &len);
}
length = len;
this->font_tables.Insert(tag, result);
this->font_tables.Insert(tag, SmallPair<size_t, const void *>(length, result));
return result;
}