[Mono-bugs] [Bug 666245] New: libgdiplus - fast copy path optimisations

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https://bugzilla.novell.com/show_bug.cgi?id=666245

https://bugzilla.novell.com/show_bug.cgi?id=666245#c0


           Summary: libgdiplus - fast copy path optimisations
    Classification: Mono
           Product: Mono: Runtime
           Version: 2.8.x
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: P5 - None
         Component: io-layer
        AssignedTo: lupus at novell.com
        ReportedBy: alexander.stohr at gmx.de
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


Created an attachment (id=409594)
 --> (http://bugzilla.novell.com/attachment.cgi?id=409594)
patch for accelerating mono by implementing a fast path for same-buffer image
copy operations

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13)
Gecko/20101203 SUSE/3.6.13-0.2.1 Firefox/3.6.13

mono copying between identical bitmap encodings is slow

Reproducible: Always

Steps to Reproduce:
1. run a mono application that uses its own bitmaps and puts them to the screen
2.
3.
Actual Results:  
slow

Expected Results:  
faster

this is only a base implementation - more fast path accelerations are possible.

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