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#12 Optimization in AnimationTest
In MHP 1.0.2 and 1.0.3, the default compositing rule is
SRC_OVER as stated in the description of class
DVBGraphics in Annex U of the MHP specification. As
pointed out in the same section, this rule does not
give the highest performance.
In AnimationTest, the background is first drawn with
the default rule and then the rule is explicitly set to
SRC_OVER to paint the butterfly. This means that
SRC_OVER is always used. Performance would be better if
the rule was set to SRC to paint the background and to
SRC_OVER only to paint the butterfly on top of it.
