ecere/gfx/Surface: Fixed PaletteGradient() ignoring alpha

diff --git a/ecere/src/gfx/Surface.ec b/ecere/src/gfx/Surface.ec
index ca04ea7..bc13065 100644 (file)
--- a/ecere/src/gfx/Surface.ec
+++ b/ecere/src/gfx/Surface.ec
@@ -43,21 +43,25 @@ public void PaletteGradient(ColorAlpha * palette, int numColors, ColorKey * keys
       {
          float scale = ease((percent - key->percent) / (nextKey->percent - key->percent),
             smoothness, smoothness);
+         int ca = key->color.a;
          int cr = key->color.color.r;
          int cg = key->color.color.g;
          int cb = key->color.color.b;
+         int na = nextKey->color.color.r;
          int nr = nextKey->color.color.r;
          int ng = nextKey->color.color.g;
          int nb = nextKey->color.color.b;
+         int a = (int)(ca + (na - ca) * scale);
          int r = (int)(cr + (nr - cr) * scale);
          int g = (int)(cg + (ng - cg) * scale);
          int b = (int)(cb + (nb - cb) * scale);
 
+         a = Max(Min(r, 255),0);
          r = Max(Min(r, 255),0);
          g = Max(Min(g, 255),0);
          b = Max(Min(b, 255),0);
 
-         newColor = Color { (byte)r, (byte)g, (byte)b };
+         newColor = ColorAlpha { (byte)a, { (byte)r, (byte)g, (byte)b } };
       }
       else if(key)
          newColor = key ? key->color : 0;