Skia to printer?

[sha...@infograph.com]

Has anyone put thought into printing Skia output?  Like, maybe, a surface that outputs postscript, the way the pdf and svg surfaces do?

A coder could always print out raster bands and have Skia render raster data, but that tends to be intensive use of memory, bandwidth and time.

[Tom Hudson]

We use PDF for printing.

On Jun 8, 2016 7:55 PM, <sha...@infograph.com> wrote:

Has anyone put thought into printing Skia output?  Like, maybe, a surface that outputs postscript, the way the pdf and svg surfaces do?

A coder could always print out raster bands and have Skia render raster data, but that tends to be intensive use of memory, bandwidth and time.

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[sha...@infograph.com]

What platform?

[Hal Canary]

Chrome uses Skia→PDF→Pdfium→printer on all platforms.

We looked at writing a PS backend for Skia to talk directly to printers. It's feasible, but we'd also have to write a PCL backend to talk to printers that don't support PS.

If I understand the situation:

• On MacOS, you can print PDF directly.
  
• On most Linux desktops, the CUPS system will do the necessary conversions from PDF.
  
• On Windows, Chrome relies on Pdfium to convert to PDF→EPS.  This is less than optimal, and there are several unresolved issues with this process.  Windows (6.0+) accept XPS as print format. Therefore, we have the experimental SkXPS backend.

[sha...@infograph.com]

Thanks!  I will look into the SkXPS surface as well as the PDFium library.

[wst wst]

We are using SkiaSharp -with XPS printing. The SkiaSharp XPS handling is already great but could use some improvements! We've reported also some issues to the Microsoft team regarding XPS / .NET 5 so might only be getting better!

Op donderdag 9 juni 2016 om 17:02:46 UTC+2 schreef sha...@infograph.com: