Added noise and mosaic magic tools
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Andrew Corcoran
parent
774c076406
commit
4c71ecdba1
4 changed files with 513 additions and 84 deletions
235
magic/src/mosaic.c
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235
magic/src/mosaic.c
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/*
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mosaic.c
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mosaic, Add a mosaic effect to the image using a combination of other tools.
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Requires the mosaicAll sharpen and noise tools.
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Tux Paint - A simple drawing program for children.
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Copyright (c) 2002-2007 by Bill Kendrick and others; see AUTHORS.txt
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bill@newbreedsoftware.com
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http://www.tuxpaint.org/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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(See COPYING.txt)
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Last updated: June 6, 2008
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$Id$
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*/
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#include <stdio.h>
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#include <string.h>
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#include <libintl.h>
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#include "tp_magic_api.h"
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#include "SDL_image.h"
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#include "SDL_mixer.h"
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#include <math.h>
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#include <limits.h>
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#include <time.h>
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#include "noise.c"
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#include "sharpen.c"
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#include "blur.c"
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#ifndef gettext_noop
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#define gettext_noop(String) String
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#endif
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double mosaic_AMOUNT= 30.0;
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const int mosaic_RADIUS = 16;
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enum {
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TOOL_MOSAIC,
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mosaic_NUM_TOOLS
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};
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static Mix_Chunk * mosaic_snd_effect[mosaic_NUM_TOOLS];
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const char * mosaic_snd_filenames[mosaic_NUM_TOOLS] = {
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"flip.wav",
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};
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const char * mosaic_icon_filenames[mosaic_NUM_TOOLS] = {
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"flip.png",
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};
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const char * mosaic_names[mosaic_NUM_TOOLS] = {
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gettext_noop("Mosaic"),
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};
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const char * mosaic_descs[mosaic_NUM_TOOLS] = {
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gettext_noop("Click to add a mosaic effect to the image."),
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};
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Uint32 mosaic_api_version(void) { return(TP_MAGIC_API_VERSION); }
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//Load sounds
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int mosaic_init(magic_api * api){
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int i;
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char fname[1024];
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for (i = 0; i < mosaic_NUM_TOOLS; i++){
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snprintf(fname, sizeof(fname), "%s/sounds/magic/%s", api->data_directory, mosaic_snd_filenames[i]);
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mosaic_snd_effect[i] = Mix_LoadWAV(fname);
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}
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sharpen_init(api);
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return(1);
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}
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int mosaic_get_tool_count(magic_api * api){
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return(mosaic_NUM_TOOLS);
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}
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// Load our icons:
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SDL_Surface * mosaic_get_icon(magic_api * api, int which){
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char fname[1024];
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snprintf(fname, sizeof(fname), "%simages/magic/%s", api->data_directory, mosaic_icon_filenames[which]);
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return(IMG_Load(fname));
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}
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// Return our names, localized:
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char * mosaic_get_name(magic_api * api, int which){
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return(strdup(gettext(mosaic_names[which])));
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}
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// Return our descriptions, localized:
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char * mosaic_get_description(magic_api * api, int which){
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return(strdup(gettext(mosaic_descs[which])));
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}
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//Do the effect for one pixel
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static void do_mosaic_pixel(void * ptr, int which,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y){
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magic_api * api = (magic_api *) ptr;
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int i;
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for (i=0;i<3;i++){
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do_noise_pixel(ptr, 0, canvas, last, x, y);
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}
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do_blur_pixel(ptr, 0, canvas, last, x, y);
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do_sharpen_pixel(ptr, 1, canvas, canvas, x, y);
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}
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// Do the effect for the full image
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static void do_mosaic_full(void * ptr, SDL_Surface * canvas, SDL_Surface * last, int which){
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magic_api * api = (magic_api *) ptr;
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int x,y;
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for (y = 0; y < last->h; y++){
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for (x=0; x < last->w; x++){
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do_mosaic_pixel(ptr, which, canvas, last, x, y);
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}
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}
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}
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//do the effect for the brush
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static void do_mosaic_brush(void * ptr, int which, SDL_Surface * canvas, SDL_Surface * last, int x, int y){
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int xx, yy;
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magic_api * api = (magic_api *) ptr;
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for (yy = y - mosaic_RADIUS; yy < y + mosaic_RADIUS; yy++)
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{
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for (xx = x - mosaic_RADIUS; xx < x + mosaic_RADIUS; xx++)
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{
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if (api->in_circle(xx - x, yy - y, mosaic_RADIUS) &&
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!api->touched(xx, yy))
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{
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do_mosaic_pixel(api, which, canvas, last, xx, yy);
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}
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}
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}
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}
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// Affect the canvas on drag:
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void mosaic_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, int ox, int oy, int x, int y,
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SDL_Rect * update_rect){
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api->line((void *) api, which, canvas, last, ox, oy, x, y, 1, do_mosaic_brush);
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api->playsound(mosaic_snd_effect[which], (x * 255) / canvas->w, 255);
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if (ox > x) { int tmp = ox; ox = x; x = tmp; }
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if (oy > y) { int tmp = oy; oy = y; y = tmp; }
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update_rect->x = ox - mosaic_RADIUS;
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update_rect->y = oy - mosaic_RADIUS;
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update_rect->w = (x + mosaic_RADIUS) - update_rect->x;
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update_rect->h = (y + mosaic_RADIUS) - update_rect->y;
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}
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// Affect the canvas on click:
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void mosaic_click(magic_api * api, int which, int mode,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect){
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if (mode == MODE_PAINT){
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mosaic_drag(api, which, canvas, last, x, y, x, y, update_rect);
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}
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else{
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update_rect->x = 0;
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update_rect->y = 0;
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update_rect->w = canvas->w;
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update_rect->h = canvas->h;
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do_mosaic_full(api, canvas, last, which);
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api->playsound(mosaic_snd_effect[which], 128, 255);
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}
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}
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// Affect the canvas on release:
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void mosaic_release(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect)
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{
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}
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// No setup happened:
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void mosaic_shutdown(magic_api * api)
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{
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//Clean up sounds
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int i;
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for(i=0; i<mosaic_NUM_TOOLS; i++){
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if(mosaic_snd_effect[i] != NULL){
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Mix_FreeChunk(mosaic_snd_effect[i]);
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}
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}
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sharpen_shutdown(api);
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}
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// Record the color from Tux Paint:
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void mosaic_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)
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{
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}
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// Use colors:
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int mosaic_requires_colors(magic_api * api, int which)
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{
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return 0;
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}
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void mosaic_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas)
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{
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}
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void mosaic_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas)
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{
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}
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int mosaic_modes(magic_api * api, int which)
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{
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return(MODE_FULLSCREEN|MODE_PAINT);
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}
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