void TCOD_image_blit_2x(TCOD_image_t image, TCOD_console_t con, int dx, int dy, int sx, int sy, int w, int h) {
TCOD_color_t grid[4];
TCOD_color_t cols[2];
int nbCols;
int width,height,ascii,cx,cy;
TCOD_console_data_t *dat = con ? (TCOD_console_data_t *)(con) : TCOD_ctx.root;
image_data_t *img=(image_data_t *)image;
int maxx,maxy;
TCOD_IFNOT(image != NULL && dat != NULL) return;
TCOD_image_get_size(image,&width,&height);
if ( w == -1 ) w=width;
if ( h == -1 ) h=height;
/* check that the sx,sy/w,h rectangle is inside the image */
TCOD_ASSERT(sx >= 0 && sy >= 0 && sx+w <= width && sy+h <= height);
TCOD_IFNOT(w > 0 && h > 0) return;
sx=MAX(0,sx);
sy=MAX(0,sy);
w = MIN(w,width-sx);
h = MIN(h,height-sy);
maxx=dx+w/2 <= dat->w ? w : (dat->w-dx)*2;
maxy=dy+h/2 <= dat->h ? h : (dat->h-dy)*2;
/* check that the image is not blitted outside the console */
TCOD_IFNOT(dx+maxx/2 >= 0 && dy+maxy/2 >= 0 && dx < dat->w && dy < dat->h) return;
maxx+=sx;
maxy+=sy;
for (cx=sx; cx < maxx; cx += 2) {
for (cy=sy; cy < maxy; cy += 2) {
/* get the 2x2 super pixel colors from the image */
int conx=dx+(cx-sx)/2;
int cony=dy+(cy-sy)/2;
TCOD_color_t consoleBack=TCOD_console_get_char_background(con,conx,cony);
grid[0]=TCOD_image_get_pixel(image,cx,cy);
if ( img->has_key_color && grid[0].r == img->key_color.r && grid[0].g == img->key_color.g && grid[0].b == img->key_color.b)
grid[0]=consoleBack;
if ( cx < maxx-1 ) {
grid[1]=TCOD_image_get_pixel(image,cx+1,cy);
if ( img->has_key_color && grid[1].r == img->key_color.r && grid[1].g == img->key_color.g && grid[1].b == img->key_color.b)
grid[1]=consoleBack;
} else grid[1]=consoleBack;
if ( cy < maxy-1 ) {
grid[2]=TCOD_image_get_pixel(image,cx,cy+1);
if ( img->has_key_color && grid[2].r == img->key_color.r && grid[2].g == img->key_color.g && grid[2].b == img->key_color.b)
grid[2]=consoleBack;
} else grid[2]=consoleBack;
if ( cx < maxx-1 && cy < maxy-1 ) {
grid[3]=TCOD_image_get_pixel(image,cx+1,cy+1);
if ( img->has_key_color && grid[3].r == img->key_color.r && grid[3].g == img->key_color.g && grid[3].b == img->key_color.b)
grid[3]=consoleBack;
} else grid[3]=consoleBack;
/* analyse color, posterize, get pattern */
getPattern(grid,cols,&nbCols,&ascii);
if ( nbCols == 1 ) {
/* single color */
TCOD_console_set_char_background(con,conx,cony,cols[0],TCOD_BKGND_SET);
TCOD_console_set_char(con,conx,cony,' ');
} else {
if ( ascii >= 0 ) {
TCOD_console_set_default_background(con,cols[0]);
TCOD_console_set_default_foreground(con,cols[1]);
TCOD_console_put_char(con,conx,cony,ascii,TCOD_BKGND_SET);
} else {
/* negative ascii code means we need to invert back/fore colors */
TCOD_console_set_default_background(con,cols[1]);
TCOD_console_set_default_foreground(con,cols[0]);
TCOD_console_put_char(con,conx,cony,-ascii,TCOD_BKGND_SET);
}
}
}
}
}
colornum_t TCOD_console_get_char_background_wrapper(TCOD_console_t con,
int x, int y)
{
return color_to_int(TCOD_console_get_char_background (con, x, y));
}
TCODColor TCODConsole::getCharBackground(int x, int y) const {
return TCOD_console_get_char_background(data,x,y);
}
