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indent mosaic.c

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This commit is contained in:
Bill Kendrick 2017-10-15 11:48:02 -07:00
parent 18be491419
commit bd18815216
1 changed files with 237 additions and 225 deletions
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462
magic/src/mosaic.c
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@ -45,29 +45,22 @@
#define gettext_noop(String) String #define gettext_noop(String) String
#endif #endif
static void mosaic_noise_pixel(void * ptr, SDL_Surface * canvas, int noise_AMOUNT, int x, int y); static void mosaic_noise_pixel(void *ptr, SDL_Surface * canvas, int noise_AMOUNT, int x, int y);
static void mosaic_blur_pixel(void * ptr, SDL_Surface * canvas, SDL_Surface * last, int x, int y); static void mosaic_blur_pixel(void *ptr, SDL_Surface * canvas, SDL_Surface * last, int x, int y);
static void mosaic_sharpen_pixel(void * ptr, SDL_Surface * canvas, SDL_Surface * last, int x, int y); static void mosaic_sharpen_pixel(void *ptr, SDL_Surface * canvas, SDL_Surface * last, int x, int y);
static void reset_mosaic_blured(SDL_Surface * canvas); static void reset_mosaic_blured(SDL_Surface * canvas);
/* Prototypes */ /* Prototypes */
Uint32 mosaic_api_version(void); Uint32 mosaic_api_version(void);
int mosaic_init(magic_api *); int mosaic_init(magic_api *);
int mosaic_get_tool_count(magic_api *); int mosaic_get_tool_count(magic_api *);
SDL_Surface * mosaic_get_icon(magic_api *, int); SDL_Surface *mosaic_get_icon(magic_api *, int);
char * mosaic_get_name(magic_api *, int); char *mosaic_get_name(magic_api *, int);
char * mosaic_get_description(magic_api *, int, int); char *mosaic_get_description(magic_api *, int, int);
void mosaic_paint(void *, int, SDL_Surface *, void mosaic_paint(void *, int, SDL_Surface *, SDL_Surface *, int, int);
SDL_Surface *, int, int); void mosaic_drag(magic_api *, int, SDL_Surface *, SDL_Surface *, int, int, int, int, SDL_Rect *);
void mosaic_drag(magic_api *, int, SDL_Surface *, void mosaic_click(magic_api *, int, int, SDL_Surface *, SDL_Surface *, int, int, SDL_Rect *);
SDL_Surface *, int, int, int, int, void mosaic_release(magic_api *, int, SDL_Surface *, SDL_Surface *, int, int, SDL_Rect *);
SDL_Rect *);
void mosaic_click(magic_api *, int, int,
SDL_Surface *, SDL_Surface *,
int, int, SDL_Rect *);
void mosaic_release(magic_api *, int,
SDL_Surface *, SDL_Surface *,
int, int, SDL_Rect *);
void mosaic_shutdown(magic_api *); void mosaic_shutdown(magic_api *);
void mosaic_set_color(magic_api *, Uint8, Uint8, Uint8); void mosaic_set_color(magic_api *, Uint8, Uint8, Uint8);
int mosaic_requires_colors(magic_api *, int); int mosaic_requires_colors(magic_api *, int);
@ -75,155 +68,169 @@ void mosaic_switchin(magic_api *, int, int, SDL_Surface *);
void mosaic_switchout(magic_api *, int, int, SDL_Surface *); void mosaic_switchout(magic_api *, int, int, SDL_Surface *);
int mosaic_modes(magic_api *, int); int mosaic_modes(magic_api *, int);
static const int mosaic_AMOUNT= 300; static const int mosaic_AMOUNT = 300;
static const int mosaic_RADIUS = 16; static const int mosaic_RADIUS = 16;
static const double mosaic_SHARPEN = 1.0; static const double mosaic_SHARPEN = 1.0;
static int randnoise ATTRIBUTE_UNUSED; static int randnoise ATTRIBUTE_UNUSED;
Uint8 * mosaic_blured; Uint8 *mosaic_blured;
enum { enum
TOOL_MOSAIC, {
mosaic_NUM_TOOLS TOOL_MOSAIC,
mosaic_NUM_TOOLS
}; };
static Mix_Chunk * mosaic_snd_effect[mosaic_NUM_TOOLS]; static Mix_Chunk *mosaic_snd_effect[mosaic_NUM_TOOLS];
static SDL_Surface * canvas_noise; static SDL_Surface *canvas_noise;
static SDL_Surface * canvas_blur; static SDL_Surface *canvas_blur;
static SDL_Surface * canvas_sharp; static SDL_Surface *canvas_sharp;
const char * mosaic_snd_filenames[mosaic_NUM_TOOLS] = { const char *mosaic_snd_filenames[mosaic_NUM_TOOLS] = {
"mosaic.ogg", /* FIXME */ "mosaic.ogg", /* FIXME */
}; };
const char * mosaic_icon_filenames[mosaic_NUM_TOOLS] = {
const char *mosaic_icon_filenames[mosaic_NUM_TOOLS] = {
"mosaic.png", "mosaic.png",
}; };
const char * mosaic_names[mosaic_NUM_TOOLS] = {
const char *mosaic_names[mosaic_NUM_TOOLS] = {
gettext_noop("Mosaic"), gettext_noop("Mosaic"),
}; };
const char * mosaic_descs[mosaic_NUM_TOOLS][2] = {
const char *mosaic_descs[mosaic_NUM_TOOLS][2] = {
{gettext_noop("Click and drag the mouse to add a mosaic effect to parts of your picture."), {gettext_noop("Click and drag the mouse to add a mosaic effect to parts of your picture."),
gettext_noop("Click to add a mosaic effect to your entire picture."),}, gettext_noop("Click to add a mosaic effect to your entire picture."),},
}; };
Uint32 mosaic_api_version(void) { return(TP_MAGIC_API_VERSION); } Uint32 mosaic_api_version(void)
{
return (TP_MAGIC_API_VERSION);
}
//Load sounds //Load sounds
int mosaic_init(magic_api * api){ int mosaic_init(magic_api * api)
{
int i; int i;
char fname[1024]; char fname[1024];
for (i = 0; i < mosaic_NUM_TOOLS; i++){ for (i = 0; i < mosaic_NUM_TOOLS; i++)
snprintf(fname, sizeof(fname), "%s/sounds/magic/%s", api->data_directory, mosaic_snd_filenames[i]); {
mosaic_snd_effect[i] = Mix_LoadWAV(fname); snprintf(fname, sizeof(fname), "%s/sounds/magic/%s", api->data_directory, mosaic_snd_filenames[i]);
} mosaic_snd_effect[i] = Mix_LoadWAV(fname);
}
return(1); return (1);
} }
int mosaic_get_tool_count(magic_api * api ATTRIBUTE_UNUSED){ int mosaic_get_tool_count(magic_api * api ATTRIBUTE_UNUSED)
return(mosaic_NUM_TOOLS); {
return (mosaic_NUM_TOOLS);
} }
// Load our icons: // Load our icons:
SDL_Surface * mosaic_get_icon(magic_api * api, int which){ SDL_Surface *mosaic_get_icon(magic_api * api, int which)
{
char fname[1024]; char fname[1024];
snprintf(fname, sizeof(fname), "%simages/magic/%s", api->data_directory, mosaic_icon_filenames[which]); snprintf(fname, sizeof(fname), "%simages/magic/%s", api->data_directory, mosaic_icon_filenames[which]);
return(IMG_Load(fname)); return (IMG_Load(fname));
} }
// Return our names, localized: // Return our names, localized:
char * mosaic_get_name(magic_api * api ATTRIBUTE_UNUSED, int which){ char *mosaic_get_name(magic_api * api ATTRIBUTE_UNUSED, int which)
return(strdup(gettext_noop(mosaic_names[which]))); {
return (strdup(gettext_noop(mosaic_names[which])));
} }
// Return our descriptions, localized: // Return our descriptions, localized:
char * mosaic_get_description(magic_api * api ATTRIBUTE_UNUSED, char *mosaic_get_description(magic_api * api ATTRIBUTE_UNUSED, int which, int mode)
int which, int mode){ {
return(strdup(gettext_noop(mosaic_descs[which][mode-1]))); return (strdup(gettext_noop(mosaic_descs[which][mode - 1])));
} }
//Calculates the grey scale value for a rgb pixel //Calculates the grey scale value for a rgb pixel
static int mosaic_grey(Uint8 r1,Uint8 g1,Uint8 b1){ static int mosaic_grey(Uint8 r1, Uint8 g1, Uint8 b1)
return 0.3*r1+.59*g1+0.11*b1; {
return 0.3 * r1 + .59 * g1 + 0.11 * b1;
} }
// Do the effect for the full image // Do the effect for the full image
static void do_mosaic_full(void * ptr, SDL_Surface * canvas, static void do_mosaic_full(void *ptr, SDL_Surface * canvas,
SDL_Surface * last ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED){ SDL_Surface * last ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
{
magic_api * api = (magic_api *) ptr; magic_api *api = (magic_api *) ptr;
int x, y;
Uint32 amask = ~(canvas->format->Rmask | canvas->format->Gmask | canvas->format->Bmask);
SDL_Surface *mosaic_temp = SDL_CreateRGBSurface(SDL_SWSURFACE,
canvas->w,
canvas->h,
canvas->format->BitsPerPixel,
canvas->format->Rmask,
canvas->format->Gmask,
canvas->format->Bmask, amask);
int x,y;
Uint32 amask = ~(canvas->format->Rmask |
canvas->format->Gmask |
canvas->format->Bmask);
SDL_Surface * mosaic_temp =
SDL_CreateRGBSurface(SDL_SWSURFACE,
canvas->w,
canvas->h,
canvas->format->BitsPerPixel,
canvas->format->Rmask,
canvas->format->Gmask,
canvas->format->Bmask, amask);
api->update_progress_bar(); api->update_progress_bar();
for (y = 0; y < canvas->h; y++){ for (y = 0; y < canvas->h; y++)
{
for (x=0; x < canvas->w; x++){ for (x = 0; x < canvas->w; x++)
mosaic_blur_pixel(api, mosaic_temp, canvas_noise, x, y); {
mosaic_blur_pixel(api, mosaic_temp, canvas_noise, x, y);
}
} }
}
api->update_progress_bar(); api->update_progress_bar();
for (y = 0; y < canvas->h; y++){ for (y = 0; y < canvas->h; y++)
for (x=0; x < canvas->w; x++){ {
mosaic_sharpen_pixel(api, canvas, mosaic_temp, x, y); for (x = 0; x < canvas->w; x++)
{
mosaic_sharpen_pixel(api, canvas, mosaic_temp, x, y);
}
} }
}
SDL_FreeSurface(mosaic_temp); SDL_FreeSurface(mosaic_temp);
} }
/* Paint the brush, noise is yet done at switchin, /* Paint the brush, noise is yet done at switchin,
blurs 2 pixels around the brush in order to get sharpen well done.*/ blurs 2 pixels around the brush in order to get sharpen well done.*/
void mosaic_paint(void * ptr_to_api, int which ATTRIBUTE_UNUSED, void mosaic_paint(void *ptr_to_api, int which ATTRIBUTE_UNUSED,
SDL_Surface * canvas, SDL_Surface * last ATTRIBUTE_UNUSED, SDL_Surface * canvas, SDL_Surface * last ATTRIBUTE_UNUSED, int x, int y)
int x, int y)
{ {
int i, j, pix_row_pos; int i, j, pix_row_pos;
magic_api * api = (magic_api *) ptr_to_api; magic_api *api = (magic_api *) ptr_to_api;
for (j = max(0, y - mosaic_RADIUS - 2); j < min(canvas->h, y + mosaic_RADIUS + 2); j++) for (j = max(0, y - mosaic_RADIUS - 2); j < min(canvas->h, y + mosaic_RADIUS + 2); j++)
{ {
pix_row_pos = j * canvas->w; pix_row_pos = j * canvas->w;
for (i = max(0, x - mosaic_RADIUS - 2); i < min(canvas->w, x + mosaic_RADIUS + 2); i++) for (i = max(0, x - mosaic_RADIUS - 2); i < min(canvas->w, x + mosaic_RADIUS + 2); i++)
if( !mosaic_blured[pix_row_pos + i] && if (!mosaic_blured[pix_row_pos + i] && api->in_circle(i - x, j - y, mosaic_RADIUS + 2))
api->in_circle(i - x,j - y, mosaic_RADIUS + 2)) {
{ mosaic_blur_pixel(api, canvas_blur, canvas_noise, i, j);
mosaic_blur_pixel(api, canvas_blur, canvas_noise, i, j); mosaic_blured[pix_row_pos + i] = 1; /* Track what are yet blured */
mosaic_blured[pix_row_pos + i] = 1; /* Track what are yet blured */ }
}
} }
for (i = x - mosaic_RADIUS; i < x + mosaic_RADIUS; i++) for (i = x - mosaic_RADIUS; i < x + mosaic_RADIUS; i++)
for (j=y - mosaic_RADIUS; j < y + mosaic_RADIUS; j++) for (j = y - mosaic_RADIUS; j < y + mosaic_RADIUS; j++)
if (api->in_circle(i - x, j - y, mosaic_RADIUS)) if (api->in_circle(i - x, j - y, mosaic_RADIUS))
if( !api->touched(i, j)) if (!api->touched(i, j))
{ {
mosaic_sharpen_pixel(api, canvas_sharp, canvas_blur, i, j); mosaic_sharpen_pixel(api, canvas_sharp, canvas_blur, i, j);
api->putpixel(canvas, i, j, api->getpixel(canvas_sharp, i, j)); api->putpixel(canvas, i, j, api->getpixel(canvas_sharp, i, j));
} }
} }
// Affect the canvas on drag: // Affect the canvas on drag:
void mosaic_drag(magic_api * api, int which, SDL_Surface * canvas, void mosaic_drag(magic_api * api, int which, SDL_Surface * canvas,
SDL_Surface * last, int ox, int oy, int x, int y, SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect)
SDL_Rect * update_rect){ {
api->line(api, which, canvas, last, ox, oy, x, y, 1, mosaic_paint); api->line(api, which, canvas, last, ox, oy, x, y, 1, mosaic_paint);
update_rect->x = min(ox, x) - mosaic_RADIUS; update_rect->x = min(ox, x) - mosaic_RADIUS;
@ -236,8 +243,8 @@ void mosaic_drag(magic_api * api, int which, SDL_Surface * canvas,
// Affect the canvas on click: // Affect the canvas on click:
void mosaic_click(magic_api * api, int which, int mode, void mosaic_click(magic_api * api, int which, int mode,
SDL_Surface * canvas, SDL_Surface * last, SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect)
int x, int y, SDL_Rect * update_rect){ {
if (mode == MODE_FULLSCREEN) if (mode == MODE_FULLSCREEN)
{ {
@ -246,7 +253,7 @@ void mosaic_click(magic_api * api, int which, int mode,
update_rect->w = canvas->w; update_rect->w = canvas->w;
update_rect->h = canvas->h; update_rect->h = canvas->h;
do_mosaic_full(api, canvas_noise, last, which); do_mosaic_full(api, canvas_noise, last, which);
SDL_BlitSurface(canvas_noise, NULL, canvas, NULL); SDL_BlitSurface(canvas_noise, NULL, canvas, NULL);
api->playsound(mosaic_snd_effect[which], 128, 255); api->playsound(mosaic_snd_effect[which], 128, 255);
} }
@ -256,195 +263,200 @@ void mosaic_click(magic_api * api, int which, int mode,
} }
// Affect the canvas on release: // Affect the canvas on release:
void mosaic_release(magic_api * api ATTRIBUTE_UNUSED, void mosaic_release(magic_api * api ATTRIBUTE_UNUSED,
int which ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,
SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED,
SDL_Surface * last ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED,
int x ATTRIBUTE_UNUSED, int y ATTRIBUTE_UNUSED, int x ATTRIBUTE_UNUSED, int y ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
SDL_Rect * update_rect ATTRIBUTE_UNUSED)
{ {
} }
// No setup happened: // No setup happened:
void mosaic_shutdown(magic_api * api ATTRIBUTE_UNUSED) void mosaic_shutdown(magic_api * api ATTRIBUTE_UNUSED)
{ {
//Clean up sounds //Clean up sounds
int i; int i;
for(i=0; i<mosaic_NUM_TOOLS; i++){
if(mosaic_snd_effect[i] != NULL){ for (i = 0; i < mosaic_NUM_TOOLS; i++)
Mix_FreeChunk(mosaic_snd_effect[i]); {
} if (mosaic_snd_effect[i] != NULL)
} {
Mix_FreeChunk(mosaic_snd_effect[i]);
}
}
} }
// Record the color from Tux Paint: // Record the color from Tux Paint:
void mosaic_set_color(magic_api * api ATTRIBUTE_UNUSED, void mosaic_set_color(magic_api * api ATTRIBUTE_UNUSED,
Uint8 r ATTRIBUTE_UNUSED, Uint8 g ATTRIBUTE_UNUSED, Uint8 r ATTRIBUTE_UNUSED, Uint8 g ATTRIBUTE_UNUSED, Uint8 b ATTRIBUTE_UNUSED)
Uint8 b ATTRIBUTE_UNUSED)
{ {
} }
// Use colors: // Use colors:
int mosaic_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int mosaic_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
int which ATTRIBUTE_UNUSED)
{ {
return 0; return 0;
} }
//Add noise to a pixel //Add noise to a pixel
static void mosaic_noise_pixel(void * ptr, SDL_Surface * canvas, int noise_AMOUNT, int x, int y){ static void mosaic_noise_pixel(void *ptr, SDL_Surface * canvas, int noise_AMOUNT, int x, int y)
magic_api * api = (magic_api *) ptr; {
magic_api *api = (magic_api *) ptr;
Uint8 temp[3]; Uint8 temp[3];
double temp2[3]; double temp2[3];
int k; int k;
SDL_GetRGB(api->getpixel(canvas,x, y), canvas->format, &temp[0], &temp[1], &temp[2]); SDL_GetRGB(api->getpixel(canvas, x, y), canvas->format, &temp[0], &temp[1], &temp[2]);
for (k =0;k<3;k++){ for (k = 0; k < 3; k++)
temp2[k] = clamp(0.0, (int)temp[k] - (rand()%noise_AMOUNT) + noise_AMOUNT/2.0, 255.0); {
} temp2[k] = clamp(0.0, (int)temp[k] - (rand() % noise_AMOUNT) + noise_AMOUNT / 2.0, 255.0);
}
api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, temp2[0], temp2[1], temp2[2])); api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, temp2[0], temp2[1], temp2[2]));
} }
//Blur a pixel //Blur a pixel
static void mosaic_blur_pixel(void * ptr, SDL_Surface * canvas, SDL_Surface * last, int x, int y){ static void mosaic_blur_pixel(void *ptr, SDL_Surface * canvas, SDL_Surface * last, int x, int y)
magic_api * api = (magic_api *) ptr; {
int i,j,k; magic_api *api = (magic_api *) ptr;
Uint8 temp[3]; int i, j, k;
Uint8 temp[3];
double blurValue[3]; double blurValue[3];
//5x5 gaussiann weighting window //5x5 gaussiann weighting window
const int weight[5][5] = { {1,4,7,4,1}, const int weight[5][5] = { {1, 4, 7, 4, 1},
{4,16,26,16,4}, {4, 16, 26, 16, 4},
{7,26,41,26,7}, {7, 26, 41, 26, 7},
{4,16,26,16,4}, {4, 16, 26, 16, 4},
{1,4,7,4,1}}; {1, 4, 7, 4, 1}
};
for (k =0;k<3;k++){ for (k = 0; k < 3; k++)
blurValue[k] = 0; {
} 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++){ for (i = -2; i < 3; i++)
blurValue[k] /= 273; {
} for (j = -2; j < 3; j++)
api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, blurValue[0], blurValue[1], blurValue[2])); {
//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]));
} }
//Sharpen a pixel //Sharpen a pixel
static void mosaic_sharpen_pixel(void * ptr, static void mosaic_sharpen_pixel(void *ptr, SDL_Surface * canvas, SDL_Surface * last, int x, int y)
SDL_Surface * canvas, SDL_Surface * last, {
int x, int y){
magic_api * api = (magic_api *) ptr; magic_api *api = (magic_api *) ptr;
Uint8 r1, g1, b1; Uint8 r1, g1, b1;
int grey; int grey;
int i,j; int i, j;
double sobel_1=0,sobel_2=0; double sobel_1 = 0, sobel_2 = 0;
double temp; double temp;
//Sobel weighting masks //Sobel weighting masks
const int sobel_weights_1[3][3] = { {1,2,1}, const int sobel_weights_1[3][3] = { {1, 2, 1},
{0,0,0}, {0, 0, 0},
{-1,-2,-1}}; {-1, -2, -1}
const int sobel_weights_2[3][3] = { {-1,0,1}, };
{-2,0,2}, const int sobel_weights_2[3][3] = { {-1, 0, 1},
{-1,0,1}}; {-2, 0, 2},
{-1, 0, 1}
};
sobel_1=0; sobel_1 = 0;
sobel_2=0; sobel_2 = 0;
for (i=-1;i<2;i++){ for (i = -1; i < 2; i++)
for(j=-1; j<2; j++){ {
//No need to check if inside canvas, getpixel does it for us. for (j = -1; j < 2; j++)
SDL_GetRGB(api->getpixel(last, x+i, y+j), last->format, &r1, &g1, &b1); {
grey = mosaic_grey(r1,g1,b1); //No need to check if inside canvas, getpixel does it for us.
sobel_1 += grey * sobel_weights_1[i+1][j+1]; SDL_GetRGB(api->getpixel(last, x + i, y + j), last->format, &r1, &g1, &b1);
sobel_2 += grey * sobel_weights_2[i+1][j+1]; grey = mosaic_grey(r1, g1, b1);
} sobel_1 += grey * sobel_weights_1[i + 1][j + 1];
} sobel_2 += grey * sobel_weights_2[i + 1][j + 1];
}
temp = sqrt(sobel_1*sobel_1 + sobel_2*sobel_2); }
temp = (temp/1443)*255.0;
temp = sqrt(sobel_1 * sobel_1 + sobel_2 * sobel_2);
temp = (temp / 1443) * 255.0;
SDL_GetRGB(api->getpixel(last, x, y), last->format, &r1, &g1, &b1); SDL_GetRGB(api->getpixel(last, x, y), last->format, &r1, &g1, &b1);
api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, clamp(0.0, r1 + mosaic_SHARPEN * temp, 255.0), api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, clamp(0.0, r1 + mosaic_SHARPEN * temp, 255.0),
clamp(0.0, g1 + mosaic_SHARPEN * temp, 255.0), clamp(0.0, g1 + mosaic_SHARPEN * temp, 255.0),
clamp(0.0, b1 + mosaic_SHARPEN * temp, 255.0))); clamp(0.0, b1 + mosaic_SHARPEN * temp, 255.0)));
} }
void mosaic_switchin(magic_api * api, int which ATTRIBUTE_UNUSED, void mosaic_switchin(magic_api * api, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas)
int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas)
{ {
int y, x; int y, x;
Uint32 amask; Uint32 amask;
mosaic_blured = (Uint8 *) malloc(sizeof(Uint8) * (canvas->w * canvas->h)); mosaic_blured = (Uint8 *) malloc(sizeof(Uint8) * (canvas->w * canvas->h));
if (mosaic_blured == NULL) if (mosaic_blured == NULL)
{ {
fprintf(stderr, "\nError: Can't build drawing touch mask!\n"); fprintf(stderr, "\nError: Can't build drawing touch mask!\n");
exit(1); exit(1);
}
amask = ~(canvas->format->Rmask |
canvas->format->Gmask |
canvas->format->Bmask);
canvas_noise = SDL_CreateRGBSurface(SDL_SWSURFACE,
canvas->w,
canvas->h,
canvas->format->BitsPerPixel,
canvas->format->Rmask,
canvas->format->Gmask,
canvas->format->Bmask, amask);
SDL_BlitSurface(canvas, NULL, canvas_noise, NULL);
for (y = 0; y < canvas->h; y++){
for (x=0; x < canvas->w; x++){
mosaic_noise_pixel(api, canvas_noise, mosaic_AMOUNT, x, y);
} }
}
canvas_blur = SDL_CreateRGBSurface(SDL_SWSURFACE, amask = ~(canvas->format->Rmask | canvas->format->Gmask | canvas->format->Bmask);
canvas->w,
canvas->h,
canvas->format->BitsPerPixel,
canvas->format->Rmask,
canvas->format->Gmask,
canvas->format->Bmask, amask);
canvas_sharp = SDL_CreateRGBSurface(SDL_SWSURFACE, canvas_noise = SDL_CreateRGBSurface(SDL_SWSURFACE,
canvas->w, canvas->w,
canvas->h, canvas->h,
canvas->format->BitsPerPixel, canvas->format->BitsPerPixel,
canvas->format->Rmask, canvas->format->Rmask, canvas->format->Gmask, canvas->format->Bmask, amask);
canvas->format->Gmask,
canvas->format->Bmask, amask); SDL_BlitSurface(canvas, NULL, canvas_noise, NULL);
reset_mosaic_blured(canvas);
for (y = 0; y < canvas->h; y++)
{
for (x = 0; x < canvas->w; x++)
{
mosaic_noise_pixel(api, canvas_noise, mosaic_AMOUNT, x, y);
}
}
canvas_blur = SDL_CreateRGBSurface(SDL_SWSURFACE,
canvas->w,
canvas->h,
canvas->format->BitsPerPixel,
canvas->format->Rmask, canvas->format->Gmask, canvas->format->Bmask, amask);
canvas_sharp = SDL_CreateRGBSurface(SDL_SWSURFACE,
canvas->w,
canvas->h,
canvas->format->BitsPerPixel,
canvas->format->Rmask, canvas->format->Gmask, canvas->format->Bmask, amask);
reset_mosaic_blured(canvas);
} }
void mosaic_switchout(magic_api * api ATTRIBUTE_UNUSED, void mosaic_switchout(magic_api * api ATTRIBUTE_UNUSED,
int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
SDL_Surface * canvas ATTRIBUTE_UNUSED)
{ {
SDL_FreeSurface(canvas_noise); SDL_FreeSurface(canvas_noise);
SDL_FreeSurface(canvas_blur); SDL_FreeSurface(canvas_blur);
SDL_FreeSurface(canvas_sharp); SDL_FreeSurface(canvas_sharp);
free (mosaic_blured); free(mosaic_blured);
} }
int mosaic_modes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED) int mosaic_modes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
{ {
return(MODE_PAINT|MODE_FULLSCREEN); return (MODE_PAINT | MODE_FULLSCREEN);
} }
void reset_mosaic_blured(SDL_Surface * canvas) void reset_mosaic_blured(SDL_Surface * canvas)