notgne2/tuxpaint-pencil-sharpener
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WIP: Fill tool improvement related to antialiasing

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Fill tools do a better job at filling around
antialiased edges, and apply some blending.
(Blending does not yet occur with gradient tools.)
This commit is contained in:
Bill Kendrick 2021-03-07 01:00:53 -08:00
parent f40dc07f37
commit 3b5a0a1586
4 changed files with 158 additions and 49 deletions
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8
src/fill.h
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@ -4,7 +4,7 @@
Fill tool
Tux Paint - A simple drawing program for children.
Copyright (c) 2002-2019 by Bill Kendrick and others; see AUTHORS.txt
Copyright (c) 2002-2021 by Bill Kendrick and others; see AUTHORS.txt
bill@newbreedsoftware.com
http://www.tuxpaint.org/
@ -27,7 +27,7 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(See COPYING.txt)
Last updated: February 20, 2021
Last updated: March 7, 2021
$Id$
*/
@ -37,8 +37,8 @@
#include "SDL.h"
int would_flood_fill(SDL_Surface * canvas, Uint32 cur_colr, Uint32 old_colr);
void do_flood_fill(SDL_Surface * canvas, int x, int y, Uint32 cur_colr, Uint32 old_colr, int * x1, int * y1, int * x2, int * y2);
void simulate_flood_fill(SDL_Surface * canvas, int x, int y, Uint32 cur_colr, Uint32 old_colr, int * x1, int * y1, int * x2, int * y2, Uint8 * touched);
void do_flood_fill(SDL_Surface * screen, SDL_Surface * canvas, int x, int y, Uint32 cur_colr, Uint32 old_colr, int * x1, int * y1, int * x2, int * y2, Uint8 * touched);
void simulate_flood_fill(SDL_Surface * screen, SDL_Surface * canvas, int x, int y, Uint32 cur_colr, Uint32 old_colr, int * x1, int * y1, int * x2, int * y2, Uint8 * touched);
void draw_linear_gradient(SDL_Surface * canvas, SDL_Surface * last,
int x_left, int y_top, int x_right, int y_bottom,
int x1, int y1, int x2, int y2, Uint32 draw_color, Uint8 * touched);