Commits on May 4, 2017

1. Handle gradients with multiple color stops at 0.0 or 1.0 …

   When a clamped gradient has multiple color stops at 0.0, the last one
   will fill GradientData[0]. When a clamped gradient has multiple color
   stops at 1.0, the first one will fill GradientData[N-1]. Both of these
   conditions will cause the area outside of the gradient to not be filled
   with the correct clamped color, which is the first or last gradient
   color stop.
   
   Filling the first or last color entry of GradientData with the first or
   last color stop isn't exactly correct either because the first or last
   color stop entry is only needed in this case for the range outside of
   [0, 1].
   
   This commit changes the GradientData so that the first color entry is
   used for offset < 0, the last color entry is used for offset >= 1, and
   the color entries in between are for the range in between. The first and
   last color entries are then filled with the correct colors for those
   ranges.

   

   eqrion committed May 4, 2017

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