Method getBitmap

core/platform/linux/Device-linux.cpp:432–540

    }

    bool getBitmap(const char* text, const FontDefinition& textDefinition, Device::TextAlign eAlignMask)
    {
        if (libError)
        {
            return false;
        }

        FT_Face face;
        std::string fontfile = getFontFile(textDefinition._fontName.c_str());
        if (FT_New_Face(library, fontfile.c_str(), 0, &face))
        {
            // no valid font found use default
            if (FT_New_Face(library, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", 0, &face))
            {
                return false;
            }
        }

        // select utf8 charmap
        if (FT_Select_Charmap(face, FT_ENCODING_UNICODE))
        {
            FT_Done_Face(face);
            return false;
        }

        if (FT_Set_Pixel_Sizes(face, textDefinition._fontSize, textDefinition._fontSize))
        {
            FT_Done_Face(face);
            return false;
        }

        if (divideString(face, text, textDefinition._dimensions.width, textDefinition._dimensions.height) == false)
        {
            FT_Done_Face(face);
            return false;
        }

        // compute the final line width
        iMaxLineWidth = MAX(iMaxLineWidth, textDefinition._dimensions.width);

        // compute the final line height
        int lineHeight = face->size->metrics.height >> 6;
        int txtHeight  = (lineHeight * textLines.size());
        iMaxLineHeight = MAX(txtHeight, textDefinition._dimensions.height);

        _data = (unsigned char*)malloc(sizeof(unsigned char) * (iMaxLineWidth * iMaxLineHeight * 4));
        memset(_data, 0, iMaxLineWidth * iMaxLineHeight * 4);

        int iCurYCursor = computeLineStartY(face, eAlignMask, txtHeight, iMaxLineHeight);

        int lineCount = textLines.size();

        auto&& textColor = Color4B(textDefinition._fontFillColor, textDefinition._fontAlpha);
        for (int line = 0; line < lineCount; line++)
        {
            int iCurXCursor = computeLineStart(face, eAlignMask, line);

            int glyphCount = textLines.at(line).glyphs.size();