[PDFBOX-4844] Pass resourceCache to patterns

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.19
• Fix Version/s: 2.0.20, 3.0.0 PDFBox
• Component/s: Rendering
• Labels: optimization
• External issue URL: https://bugs.ghostscript.com/show_bug.cgi?id=702386
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 24/May/20 09:30
• Updated: 15/Jun/20 04:54
• Resolved: 24/May/20 10:07

Description

The attached file has many patterns and renders extremely slowly. The remark by Ray Johnston in the attached ghostscript (mentioning that the patterns were using only 2 images) made me have a deeper look - it turns out we don't pass our resource cache to tiling patterns.

Before change: 88 seconds
After change: 20 seconds