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Converted Blocks, Chalk, Drip, Blur, Bricks, Cartoon, Drip, Fill, Grass,

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Rainbow, Smudge and Tint Magic tools to plugins.
This commit is contained in:
William Kendrick 2007-07-06 19:35:32 +00:00
parent 535220e921
commit 2d4eee798f
10 changed files with 1793 additions and 0 deletions
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178
magic/src/cartoon.c Normal file
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#include <stdio.h>
#include <string.h>
#include <libintl.h>
#include <math.h>
#include "tp_magic_api.h"
#include "SDL_image.h"
#include "SDL_mixer.h"
/* Our globals: */
Mix_Chunk * cartoon_snd;
#define OUTLINE_THRESH 48
// No setup required:
int cartoon_init(magic_api * api)
{
char fname[1024];
snprintf(fname, sizeof(fname), "%s/sounds/magic/cartoon.wav",
api->data_directory);
cartoon_snd = Mix_LoadWAV(fname);
return(1);
}
// We have multiple tools:
int cartoon_get_tool_count(magic_api * api)
{
return(1);
}
// Load our icons:
SDL_Surface * cartoon_get_icon(magic_api * api, int which)
{
char fname[1024];
snprintf(fname, sizeof(fname), "%s/images/magic/cartoon.png",
api->data_directory);
return(IMG_Load(fname));
}
// Return our names, localized:
char * cartoon_get_name(magic_api * api, int which)
{
return(strdup(gettext("Cartoon")));
}
// Return our descriptions, localized:
char * cartoon_get_description(magic_api * api, int which)
{
return(strdup(gettext(
"Click and move the mouse around to turn the picture into a cartoon.")));
}
// Do the effect:
void do_cartoon(void * ptr, int which, SDL_Surface * canvas, SDL_Surface * last,
int x, int y)
{
magic_api * api = (magic_api *) ptr;
int xx, yy;
Uint8 r1, g1, b1, r2, g2, b2;
Uint8 r, g, b;
float hue, sat, val;
/* First, convert colors to more cartoony ones: */
for (yy = y - 16; yy < y + 16; yy = yy + 1)
{
for (xx = x - 16; xx < x + 16; xx = xx + 1)
{
if (api->in_circle(xx - x, yy - y, 16))
{
/* Get original color: */
SDL_GetRGB(api->getpixel(last, xx, yy), last->format, &r, &g, &b);
api->rgbtohsv(r, g, b, &hue, &sat, &val);
val = val - 0.5;
val = val * 4;
val = val + 0.5;
if (val < 0)
val = 0;
else if (val > 1.0)
val = 1.0;
val = floor(val * 4) / 4;
hue = floor(hue * 4) / 4;
sat = floor(sat * 4) / 4;
api->hsvtorgb(hue, sat, val, &r, &g, &b);
api->putpixel(canvas, xx, yy, SDL_MapRGB(canvas->format, r, g, b));
}
}
}
/* Then, draw dark outlines where there's a large contrast change */
for (yy = y - 16; yy < y + 16; yy++)
{
for (xx = x - 16; xx < x + 16; xx++)
{
if (api->in_circle(xx - x, yy - y, 16))
{
/* Get original color: */
SDL_GetRGB(api->getpixel(last, xx, yy), last->format, &r, &g, &b);
SDL_GetRGB(api->getpixel(last, xx + 1, yy),
last->format, &r1, &g1, &b1);
SDL_GetRGB(api->getpixel(last, xx + 1, yy + 1),
last->format, &r2, &g2, &b2);
if (abs(((r + g + b) / 3) - (r1 + g1 + b1) / 3) > OUTLINE_THRESH
|| abs(((r + g + b) / 3) - (r2 + g2 + b2) / 3) >
OUTLINE_THRESH || abs(r - r1) > OUTLINE_THRESH
|| abs(g - g1) > OUTLINE_THRESH
|| abs(b - b1) > OUTLINE_THRESH
|| abs(r - r2) > OUTLINE_THRESH
|| abs(g - g2) > OUTLINE_THRESH
|| abs(b - b2) > OUTLINE_THRESH)
{
api->putpixel(canvas, xx - 1, yy,
SDL_MapRGB(canvas->format, 0, 0, 0));
api->putpixel(canvas, xx, yy - 1,
SDL_MapRGB(canvas->format, 0, 0, 0));
api->putpixel(canvas, xx - 1, yy - 1,
SDL_MapRGB(canvas->format, 0, 0, 0));
}
}
}
}
}
// Affect the canvas on drag:
void cartoon_drag(magic_api * api, int which, SDL_Surface * canvas,
SDL_Surface * last, int ox, int oy, int x, int y)
{
api->line(which, canvas, last, ox, oy, x, y, 1, do_cartoon);
api->playsound(cartoon_snd, (x * 255) / canvas->w, 255);
}
// Affect the canvas on click:
void cartoon_click(magic_api * api, int which,
SDL_Surface * canvas, SDL_Surface * last,
int x, int y)
{
cartoon_drag(api, which, canvas, last, x, y, x, y);
}
// No setup happened:
void cartoon_shutdown(magic_api * api)
{
if (cartoon_snd != NULL)
Mix_FreeChunk(cartoon_snd);
}
// Record the color from Tux Paint:
void cartoon_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)
{
}
// Use colors:
int cartoon_requires_colors(magic_api * api, int which)
{
return 0;
}