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Fix red/blue tint for black/white colors (fix #1125)

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This commit is contained in:
David Capello 2016-05-10 13:19:16 -03:00
parent c12100dedb
commit 736f63132b
1 changed files with 2 additions and 2 deletions
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4
src/doc/blend_funcs.cpp
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@ -144,14 +144,14 @@ color_t rgba_blender_neg_bw(color_t backdrop, color_t src, int opacity)
color_t rgba_blender_red_tint(color_t backdrop, color_t src, int opacity) color_t rgba_blender_red_tint(color_t backdrop, color_t src, int opacity)
{ {
int v = rgba_luma(src); int v = rgba_luma(src);
src = rgba(v, 0, 0, rgba_geta(src)); src = rgba((255+v)/2, v/2, v/2, rgba_geta(src));
return rgba_blender_normal(backdrop, src, opacity); return rgba_blender_normal(backdrop, src, opacity);
} }
color_t rgba_blender_blue_tint(color_t backdrop, color_t src, int opacity) color_t rgba_blender_blue_tint(color_t backdrop, color_t src, int opacity)
{ {
int v = rgba_luma(src); int v = rgba_luma(src);
src = rgba(0, 0, v, rgba_geta(src)); src = rgba(v/2, v/2, (255+v)/2, rgba_geta(src));
return rgba_blender_normal(backdrop, src, opacity); return rgba_blender_normal(backdrop, src, opacity);
} }