Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-6879279

PNG Reader: perfomance is not acceptable for 32 bit translucent images

    XMLWordPrintable

Details

    Description

      PNG reader seems to produce custom images for 32 bit translucent images.
      These are very inefficient to handle and image creation time is also high.

      Unfortunatelly it seems to be the only format to create 32 bit translucent images and
      they are used by many apps.

      In particular pietheory aplication for FX loads 8 of these images on startup.
      Simple experiment proved that we may observe up to 22% startup improvement if we fix this.

      Attachments

        Issue Links

          relates to

          Enhancement - null JDK-6797730 Umbrella: Applet startup performance improvements

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-6549882 PNG reader should load RGB[A] images in display-optimal format

          • P3 - Major loss of function.
          • Resolved

          Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2183443 PNG reader should load RGB[A] images in display-optimal format

          • P3 - Major loss of function.
          • Resolved

          Activity

            People

              jdv Jayathirth D V
              igor Igor Nekrestyanov (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

                Created:
                Updated:
                Imported:
                Indexed: