SF.net SVN: matplotlib: [3784] trunk/matplotlib/src/_backend_agg.cpp

[<md...@us...>]

Revision: 3784
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=3784&view=rev
Author:   mdboom
Date:     2007-09-05 07:03:09 -0700 (Wed, 05 Sep 2007)

Log Message:
-----------
Fix over-allocation of alpha-channel buffer.  (Reduces memory usage
with Agg by ~25%

Modified Paths:
--------------
    trunk/matplotlib/src/_backend_agg.cpp

Modified: trunk/matplotlib/src/_backend_agg.cpp
===================================================================
--- trunk/matplotlib/src/_backend_agg.cpp	2007-09-05 14:02:22 UTC (rev 3783)
+++ trunk/matplotlib/src/_backend_agg.cpp	2007-09-05 14:03:09 UTC (rev 3784)
@@ -247,7 +247,7 @@
   renderingBuffer = new agg::rendering_buffer;
   renderingBuffer->attach(pixBuffer, width, height, stride);
   
-  alphaBuffer = new agg::int8u[NUMBYTES];
+  alphaBuffer = new agg::int8u[width*height];
   alphaMaskRenderingBuffer = new agg::rendering_buffer;
   alphaMaskRenderingBuffer->attach(alphaBuffer, width, height, stride);
   alphaMask = new alpha_mask_type(*alphaMaskRenderingBuffer);


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