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blurAll merged into blur as a full-image mode.

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William Kendrick 2008-07-10 20:39:36 +00:00
parent c04be7b7d0
commit 8d44381a1d
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magic/src/blurAll.c
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/*
blurAll.c
blurAll, Blur the whole image
Tux Paint - A simple drawing program for children.
FIXME: Credits
Copyright (c) 2002-2008 by Bill Kendrick and others; see AUTHORS.txt
bill@newbreedsoftware.com
http://www.tuxpaint.org/
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(See COPYING.txt)
Last updated: July 8, 2008
$Id$
*/
#include <stdio.h>
#include <string.h>
#include <libintl.h>
#include "tp_magic_api.h"
#include "SDL_image.h"
#include "SDL_mixer.h"
#include <math.h>
#include <limits.h>
#ifndef gettext_noop
#define gettext_noop(String) String
#endif
enum {
TOOL_BLURALL,
blurAll_NUM_TOOLS
};
static Mix_Chunk * blurAll_snd_effect[blurAll_NUM_TOOLS];
const char *blurAll_snd_filenames[blurAll_NUM_TOOLS] = {
"flip.wav",
};
const char * blurAll_icon_filenames[blurAll_NUM_TOOLS] = {
"flip.png",
};
const char * blurAll_names[blurAll_NUM_TOOLS] = {
gettext_noop("Blur All"),
};
const char * blurAll_descs[blurAll_NUM_TOOLS] = {
gettext_noop("Click to blur the whole image."),
};
Uint32 blurAll_api_version(void) { return(TP_MAGIC_API_VERSION); }
//Load sounds
int blurAll_init(magic_api * api){
int i;
char fname[1024];
for (i = 0; i < blurAll_NUM_TOOLS; i++){
snprintf(fname, sizeof(fname), "%s/sounds/magic/%s", api->data_directory, blurAll_snd_filenames[i]);
blurAll_snd_effect[i] = Mix_LoadWAV(fname);
}
return(1);
}
int blurAll_get_tool_count(magic_api * api){
return(blurAll_NUM_TOOLS);
}
// Load our icons:
SDL_Surface * blurAll_get_icon(magic_api * api, int which){
char fname[1024];
snprintf(fname, sizeof(fname), "%simages/magic/%s", api->data_directory, blurAll_icon_filenames[which]);
return(IMG_Load(fname));
}
// Return our names, localized:
char * blurAll_get_name(magic_api * api, int which){
return(strdup(gettext(blurAll_names[which])));
}
// Return our descriptions, localized:
char * blurAll_get_description(magic_api * api, int which, int mode){
return(strdup(gettext(blurAll_descs[which])));
}
// Do the effect:
static void do_blurAll(void * ptr,SDL_Surface * canvas, SDL_Surface * last, int which){
magic_api * api = (magic_api *) ptr;
int x,y;
int i,j;
Uint8 temp[3];
double blurValue[3];
//5x5 gaussiann weighting window
const int weight[5][5] = { {1,4,7,4,1},
{4,16,26,16,4},
{7,26,41,26,7},
{4,16,26,16,4},
{1,4,7,4,1}};
for (y = 0; y < last->h; y++){
for (x=0; x < last->w; x++){
int k;
//zero the holder for the new value
for (k =0;k<3;k++){
blurValue[k] =0;
}
for (i=-2;i<3;i++){
for (j=-2;j<3;j++){
//Add the pixels around the current one wieghted
SDL_GetRGB(api->getpixel(last, x + i, y + j), last->format, &temp[0], &temp[1], &temp[2]);
for (k =0;k<3;k++){
blurValue[k] += temp[k]* weight[i+2][j+2];
}
}
}
for (k =0;k<3;k++){
blurValue[k] /=273;
}
api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, blurValue[0], blurValue[1], blurValue[2]));
}
}
}
// Affect the canvas on drag:
void blurAll_drag(magic_api * api, int which, SDL_Surface * canvas,
SDL_Surface * last, int ox, int oy, int x, int y,
SDL_Rect * update_rect){
// No-op
}
// Affect the canvas on click:
void blurAll_click(magic_api * api, int which, int mode,
SDL_Surface * canvas, SDL_Surface * last,
int x, int y, SDL_Rect * update_rect){
update_rect->x = 0;
update_rect->y = 0;
update_rect->w = canvas->w;
update_rect->h = canvas->h;
do_blurAll(api, canvas, last, which);
api->playsound(blurAll_snd_effect[which], 128, 255);
}
// Affect the canvas on release:
void blurAll_release(magic_api * api, int which,
SDL_Surface * canvas, SDL_Surface * last,
int x, int y, SDL_Rect * update_rect)
{
}
// No setup happened:
void blurAll_shutdown(magic_api * api)
{
//Clean up sounds
int i;
for(i=0; i<blurAll_NUM_TOOLS; i++){
if(blurAll_snd_effect[i] != NULL){
Mix_FreeChunk(blurAll_snd_effect[i]);
}
}
}
// Record the color from Tux Paint:
void blurAll_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)
{
}
// Use colors:
int blurAll_requires_colors(magic_api * api, int which)
{
return 0;
}
void blurAll_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas)
{
}
void blurAll_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas)
{
}
int blurAll_modes(magic_api * api, int which)
{
return(MODE_FULLSCREEN); /* FIXME - Can also be turned into a painted effect */ /* FIXME: Merge with blur */
}