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Posted to commits@harmony.apache.org by "Igor V. Stolyarov (JIRA)" <ji...@apache.org> on 2007/09/17 09:14:32 UTC
[jira] Created: (HARMONY-4801) [classlib][awt] Performance
improvement for java.awt.Color.ColorPaintContext
[classlib][awt] Performance improvement for java.awt.Color.ColorPaintContext
----------------------------------------------------------------------------
Key: HARMONY-4801
URL: https://issues.apache.org/jira/browse/HARMONY-4801
Project: Harmony
Issue Type: Improvement
Reporter: Igor V. Stolyarov
I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost because processing of Opaque Images more then 3 times faster then Transparen Images.
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[jira] Closed: (HARMONY-4801) [classlib][awt] Performance
improvement for java.awt.Color.ColorPaintContext
Posted by "Alexei Zakharov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexei Zakharov closed HARMONY-4801.
------------------------------------
Fix was verified by Igor. Issue closed.
> [classlib][awt] Performance improvement for java.awt.Color.ColorPaintContext
> ----------------------------------------------------------------------------
>
> Key: HARMONY-4801
> URL: https://issues.apache.org/jira/browse/HARMONY-4801
> Project: Harmony
> Issue Type: Improvement
> Reporter: Igor V. Stolyarov
> Assignee: Alexei Zakharov
> Attachments: H-4801.patch
>
>
> I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost on BufferedImage fill opatations because processing of Opaque Images more than 3 times faster than Transparen Images.
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[jira] Resolved: (HARMONY-4801) [classlib][awt] Performance
improvement for java.awt.Color.ColorPaintContext
Posted by "Alexei Zakharov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexei Zakharov resolved HARMONY-4801.
--------------------------------------
Resolution: Fixed
Thank for the fix Igor. It was committed at the revision 576299. Please verify.
> [classlib][awt] Performance improvement for java.awt.Color.ColorPaintContext
> ----------------------------------------------------------------------------
>
> Key: HARMONY-4801
> URL: https://issues.apache.org/jira/browse/HARMONY-4801
> Project: Harmony
> Issue Type: Improvement
> Reporter: Igor V. Stolyarov
> Assignee: Alexei Zakharov
> Attachments: H-4801.patch
>
>
> I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost on BufferedImage fill opatations because processing of Opaque Images more than 3 times faster than Transparen Images.
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[jira] Updated: (HARMONY-4801) [classlib][awt] Performance
improvement for java.awt.Color.ColorPaintContext
Posted by "Igor V. Stolyarov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Igor V. Stolyarov updated HARMONY-4801:
---------------------------------------
Description: I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost on BufferedImage fill opatations because processing of Opaque Images more than 3 times faster than Transparen Images. (was: I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost because processing of Opaque Images more then 3 times faster then Transparen Images.)
> [classlib][awt] Performance improvement for java.awt.Color.ColorPaintContext
> ----------------------------------------------------------------------------
>
> Key: HARMONY-4801
> URL: https://issues.apache.org/jira/browse/HARMONY-4801
> Project: Harmony
> Issue Type: Improvement
> Reporter: Igor V. Stolyarov
> Attachments: H-4801.patch
>
>
> I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost on BufferedImage fill opatations because processing of Opaque Images more than 3 times faster than Transparen Images.
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[jira] Assigned: (HARMONY-4801) [classlib][awt] Performance
improvement for java.awt.Color.ColorPaintContext
Posted by "Alexei Zakharov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexei Zakharov reassigned HARMONY-4801:
----------------------------------------
Assignee: Alexei Zakharov
> [classlib][awt] Performance improvement for java.awt.Color.ColorPaintContext
> ----------------------------------------------------------------------------
>
> Key: HARMONY-4801
> URL: https://issues.apache.org/jira/browse/HARMONY-4801
> Project: Harmony
> Issue Type: Improvement
> Reporter: Igor V. Stolyarov
> Assignee: Alexei Zakharov
> Attachments: H-4801.patch
>
>
> I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost on BufferedImage fill opatations because processing of Opaque Images more than 3 times faster than Transparen Images.
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[jira] Updated: (HARMONY-4801) [classlib][awt] Performance
improvement for java.awt.Color.ColorPaintContext
Posted by "Igor V. Stolyarov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Igor V. Stolyarov updated HARMONY-4801:
---------------------------------------
Attachment: H-4801.patch
Fix attached.
> [classlib][awt] Performance improvement for java.awt.Color.ColorPaintContext
> ----------------------------------------------------------------------------
>
> Key: HARMONY-4801
> URL: https://issues.apache.org/jira/browse/HARMONY-4801
> Project: Harmony
> Issue Type: Improvement
> Reporter: Igor V. Stolyarov
> Attachments: H-4801.patch
>
>
> I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost because processing of Opaque Images more then 3 times faster then Transparen Images.
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[jira] Commented: (HARMONY-4801) [classlib][awt] Performance
improvement for java.awt.Color.ColorPaintContext
Posted by "Igor V. Stolyarov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-4801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12529055 ]
Igor V. Stolyarov commented on HARMONY-4801:
--------------------------------------------
Works for me.
Thank you Alexei.
> [classlib][awt] Performance improvement for java.awt.Color.ColorPaintContext
> ----------------------------------------------------------------------------
>
> Key: HARMONY-4801
> URL: https://issues.apache.org/jira/browse/HARMONY-4801
> Project: Harmony
> Issue Type: Improvement
> Reporter: Igor V. Stolyarov
> Assignee: Alexei Zakharov
> Attachments: H-4801.patch
>
>
> I would like suggest performance improvement for java.awt.Color.ColorPaintContext. According to Spec in method createPaintContext of Paint interface ColorModel parameter is used only as hint. If the application does not prefer a specific ColorModel, the null ColorModel argument will give the Paint implementation full leeway in using the most efficient ColorModel it prefers for its raster processing. Now Harmony create defaultRGB ColorModel which is not convenient in most cases. I suggest using defaultRGB ColorModel only for Colors which have tansparency different from OPAQUE and DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF) for OPAQUE colors. It should give significant boost on BufferedImage fill opatations because processing of Opaque Images more than 3 times faster than Transparen Images.
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