[AD] [ alleg-Bugs-3367185 ] al_draw_rectangle misses bottom-left corner pixel

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Bugs item #3367185, was opened at 2011-07-14 12:00
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Category: Addons
Group: 5.1
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: https://www.google.com/accounts ()
Assigned to: Nobody/Anonymous (nobody)
Summary: al_draw_rectangle misses bottom-left corner pixel

Initial Comment:
When the thickness is negative, the implementation on DirectX misses 1 pixel on the bottom-left corner of the rectangle.
This is because the ALLEGRO_PRIM_LINE_LOOP is simulated by adding final closing line to the vertex buffer, but it is drawn in opposite direction. 

To fix, the direction of final closing line must be from bottom to up, i.e. from last point in buffer to first one. 

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