get_or_rasterize() [1/2]

const GlyphMetrics * MayaFlux::Portal::Text::GlyphAtlas::get_or_rasterize

(

FT_UInt

glyph_index

)

Return metrics for a glyph, rasterizing it into the atlas if needed.

Parameters

glyph_index

FT_UInt glyph index (from FT_Get_Char_Index).

Returns

Pointer to cached GlyphMetrics, or nullptr if rasterization fails.

Definition at line 16 of file GlyphAtlas.cpp.

{
    auto it = m_cache.find(glyph_index);
    if (it != m_cache.end()) {
        return &it->second;
    }
 
    if (!rasterize(glyph_index)) {
        return nullptr;
    }
 
    return &m_cache.at(glyph_index);
}

References m_cache, and rasterize().

Referenced by get_or_rasterize(), and MayaFlux::Portal::Text::lay_out().

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