[fdo-trac] #735: Improve performance on GetGeometry

[FDO]

#735: Improve performance on GetGeometry
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   Reporter:  maland           |       Owner:  gregboone
       Type:  enhancement      |      Status:  new      
   Priority:  major            |   Milestone:  3.6.0    
  Component:  ArcSDE Provider  |     Version:  3.5.0    
   Severity:  3                |    Keywords:           
External_id:                   |  
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Comment(by oyvndi):

 The main perfomance killer turned out to be SDE's API, such as
 SE_shape_get_num_points().

 I removed all the existing buffer handling, including code inside macros
 (which makes debugging impossible). Instead I added the DynamicBuffer-
 class, which is a simple class that handles allocation, using templates.

 I also did related code cleanup, and the amount of code in total is now
 slightly reduced.

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Ticket URL: <http://trac.osgeo.org/fdo/ticket/735#comment:1>
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