notgne2/tuxpaint-pencil-sharpener
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Implemented 'Tint' magic tool.

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This commit is contained in:
William Kendrick 2004-12-11 11:54:02 +00:00
parent e1e6ce35e5
commit 97f5d7b02b
1 changed files with 41 additions and 1 deletions
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42
src/tuxpaint.c
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@ -4030,6 +4030,12 @@ static void magic_draw(int x1, int y1, int x2, int y2, int button_down)
else if (cur_magic == MAGIC_RAINBOW)
playsound(0, SND_RAINBOW, 0);
/* FIXME: Need sounds for:
Smudge
Darken
Tint
Cartoon */
/* FIXME: Arbitrary? */
@ -4248,7 +4254,7 @@ static void blit_magic(int x, int y, int button_down)
{
for (xx = x - 16; xx < x + 16; xx++)
{
/* Get average color around here: */
/* Get original color: */
SDL_GetRGB(getpixel(last, xx, yy), last->format,
&r, &g, &b);
@ -4270,6 +4276,40 @@ static void blit_magic(int x, int y, int button_down)
}
}
SDL_UnlockSurface(canvas);
SDL_UnlockSurface(last);
}
else if (cur_magic == MAGIC_TINT)
{
double rd = sRGB_to_linear_table[color_hexes[cur_color][0]];
double gd = sRGB_to_linear_table[color_hexes[cur_color][1]];
double bd = sRGB_to_linear_table[color_hexes[cur_color][2]];
double old;
SDL_LockSurface(last);
SDL_LockSurface(canvas);
for (yy = y - 16; yy < y + 16; yy++)
{
for (xx = x - 16; xx < x + 16; xx++)
{
/* Get original pixel: */
SDL_GetRGB(getpixel(last, xx, yy), last->format,
&r, &g, &b);
old = sRGB_to_linear_table[r] * 0.2126 +
sRGB_to_linear_table[g] * 0.7152 +
sRGB_to_linear_table[b] * 0.0722;
putpixel(canvas, xx, yy,
SDL_MapRGB(canvas->format,
linear_to_sRGB(rd * old),
linear_to_sRGB(gd * old),
linear_to_sRGB(bd * old)));
}
}
SDL_UnlockSurface(canvas);
SDL_UnlockSurface(last);
}