notgne2/tuxpaint-pencil-sharpener
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Trying a newsprint effect in the "Cartoon" magic tool. Looks awful. :^/

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This commit is contained in:
William Kendrick 2005-10-22 20:53:26 +00:00
parent 65ef4f635e
commit 104fc0a9aa
1 changed files with 65 additions and 8 deletions
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73
src/tuxpaint.c
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@ -5940,18 +5940,19 @@ static void blit_magic(int x, int y, int button_down)
else if (cur_magic == MAGIC_CARTOON) else if (cur_magic == MAGIC_CARTOON)
{ {
float hue, sat, val; float hue, sat, val;
Uint32 color1, color2, color3, color4;
SDL_LockSurface(last); SDL_LockSurface(last);
SDL_LockSurface(canvas); SDL_LockSurface(canvas);
for (yy = y - 16; yy < y + 16; yy++) for (yy = ((y / 4) * 4) - 16; yy < ((y / 4) * 4) + 16; yy = yy + 4)
{ {
for (xx = x - 16; xx < x + 16; xx++) for (xx = ((x / 4) * 4) - 16; xx < ((x / 4) * 4) + 16; xx = xx + 4)
{ {
/* Get original color: */ /* Get original color: */
SDL_GetRGB(getpixel_last(last, xx, yy), last->format, SDL_GetRGB(getpixel_last(last, xx + 1, yy + 1),
&r, &g, &b); last->format, &r, &g, &b);
rgbtohsv(r, g, b, &hue, &sat, &val); rgbtohsv(r, g, b, &hue, &sat, &val);
@ -5959,7 +5960,8 @@ static void blit_magic(int x, int y, int button_down)
sat = 0; sat = 0;
else else
sat = 1.0; sat = 1.0;
#if 0
val = val - 0.5; val = val - 0.5;
val = val * 4; val = val * 4;
val = val + 0.5; val = val + 0.5;
@ -5970,12 +5972,67 @@ static void blit_magic(int x, int y, int button_down)
val = 1.0; val = 1.0;
val = floor(val * 10) / 10; val = floor(val * 10) / 10;
#endif
hue = floor(hue * 10) / 10; hue = floor(hue * 10) / 10;
hsvtorgb(hue, sat, val, &r, &g, &b); hsvtorgb(hue, sat, 0.5, &r, &g, &b);
putpixel(canvas, xx, yy, SDL_MapRGB(canvas->format, r, g, b)); if (val >= 1)
{
color1 = SDL_MapRGB(canvas->format, 255, 255, 255);
color2 = SDL_MapRGB(canvas->format, 255, 255, 255);
color3 = SDL_MapRGB(canvas->format, 255, 255, 255);
color4 = SDL_MapRGB(canvas->format, 255, 255, 255);
}
else if (val >= 0.75)
{
color1 = SDL_MapRGB(canvas->format, r, g, b);
color2 = SDL_MapRGB(canvas->format, 255, 255, 255);
color3 = SDL_MapRGB(canvas->format, 255, 255, 255);
color4 = SDL_MapRGB(canvas->format, 255, 255, 255);
}
else if (val >= 0.5)
{
color1 = SDL_MapRGB(canvas->format, r, g, b);
color2 = SDL_MapRGB(canvas->format, r, g, b);
color3 = SDL_MapRGB(canvas->format, 255, 255, 255);
color4 = SDL_MapRGB(canvas->format, 255, 255, 255);
}
else if (val >= 0.25)
{
color1 = SDL_MapRGB(canvas->format, r, g, b);
color2 = SDL_MapRGB(canvas->format, r, g, b);
color3 = SDL_MapRGB(canvas->format, r, g, b);
color4 = SDL_MapRGB(canvas->format, 255, 255, 255);
}
else
{
color1 = SDL_MapRGB(canvas->format, r, g, b);
color2 = SDL_MapRGB(canvas->format, r, g, b);
color3 = SDL_MapRGB(canvas->format, r, g, b);
color4 = SDL_MapRGB(canvas->format, r, g, b);
}
putpixel(canvas, xx - 1, yy - 1, color3);
putpixel(canvas, xx, yy - 1, color2);
putpixel(canvas, xx + 1, yy - 1, color3);
putpixel(canvas, xx + 2, yy - 1, color4);
putpixel(canvas, xx - 1, yy, color2);
putpixel(canvas, xx, yy, color1);
putpixel(canvas, xx + 1, yy, color2);
putpixel(canvas, xx + 2, yy, color4);
putpixel(canvas, xx - 1, yy + 1, color3);
putpixel(canvas, xx, yy + 1, color2);
putpixel(canvas, xx + 1, yy + 1, color3);
putpixel(canvas, xx + 2, yy + 1, color4);
putpixel(canvas, xx - 1, yy + 2, color4);
putpixel(canvas, xx, yy + 2, color4);
putpixel(canvas, xx + 1, yy + 2, color4);
putpixel(canvas, xx + 2, yy + 2, color4);
} }
} }