[PDFBOX-3860] TilingPaint.getImage() should return an ARGB-Typed-Image

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.6
• Fix Version/s: 2.0.7, 3.0.0 PDFBox
• Component/s: Rendering
• Labels: optimization
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 09/Jul/17 16:07
• Updated: 21/Jul/17 04:40
• Resolved: 09/Jul/17 16:17

Description

TilingPaint.getImage() has this:

        ColorSpace outputCS = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        ColorModel cm = new ComponentColorModel(outputCS, true, false,
                Transparency.TRANSLUCENT, DataBuffer.TYPE_BYTE);

        WritableRaster raster = cm.createCompatibleWritableRaster(rasterWidth, rasterHeight);
        BufferedImage image = new BufferedImage(cm, raster, false, null);

This is the same problem as in PDFBOX-3854. I have a confidential file ("bicycle", p134) with many patterns, and changing the code to return BufferedImage.TYPE_INT_ARGB brings rendering from 70 secs to 26 secs.

Issue Links

• relates to: PDFBOX-3854 PDDeviceRGB.toRGBImage should return a RGB-Typed-Image