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LibGfx: Add Painter::blit_filtered() and blit_brightened()

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blit_filtered() can be used to easily implement per-pixel filtered blit
functions. All you need to do is provide a callback that can compute
the Color for each pixel based on the original Color.
This commit is contained in:
Andreas Kling 2020-03-30 19:39:37 +02:00
parent fb2be5c404
commit 7976ef7a79
2 changed files with 20 additions and 3 deletions
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2
Libraries/LibGfx/Painter.h
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@ -56,6 +56,8 @@ public:
void draw_scaled_bitmap(const Rect& dst_rect, const Gfx::Bitmap&, const Rect& src_rect);
void blit(const Point&, const Gfx::Bitmap&, const Rect& src_rect, float opacity = 1.0f);
void blit_dimmed(const Point&, const Gfx::Bitmap&, const Rect& src_rect);
void blit_brightened(const Point&, const Gfx::Bitmap&, const Rect& src_rect);
void blit_filtered(const Point&, const Gfx::Bitmap&, const Rect& src_rect, Function<Color(Color)>);
void draw_tiled_bitmap(const Rect& dst_rect, const Gfx::Bitmap&);
void blit_offset(const Point&, const Gfx::Bitmap&, const Rect& src_rect, const Point&);
void blit_scaled(const Rect&, const Gfx::Bitmap&, const Rect&, float, float);