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https://issues.apache.org/jira/browse/PDFBOX-2117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Petr Slaby updated PDFBOX-2117:
-------------------------------
Attachment: AxialShading1.patch
Attached a modified version of the patch with synchronization of lookup table
access in DeviceXXX.
> AxialShadingContext is slow
> ---------------------------
>
> Key: PDFBOX-2117
> URL: https://issues.apache.org/jira/browse/PDFBOX-2117
> Project: PDFBox
> Issue Type: Improvement
> Reporter: Petr Slaby
> Attachments: AxialShading.patch, AxialShading1.patch,
> Shading2Function2text.pdf, asy-shade.pdf, color_gradient.pdf,
> shading_pattern.pdf
>
>
> AxialShadingContext#getRaster() is on top of profiler hot spots in documents
> that use an axial shading. Inside it, the slowest part is calling
> PDColorSpaceRGB#toRGB() and PDFunctionType3#eval() (in this order).
>
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