int do_resol_adjust(int resol_x, int resol_y, struct image *img)
{
Log(LOG_DEBUG, "function:%s --- paralist{resol_x=%d,resol_y=%d}\n", __func__, resol_x, resol_y);
int screen_width = 0, screen_height = 0;
unsigned char * new_image = NULL, *new_alpha = NULL;
// get_led_size(CONF_PATH, &screen_width, &screen_height);
if (RESOL_SCREEN == resol_x && RESOL_SCREEN == resol_y) {
// fit to screen resolution
resol_x = screen_width;
resol_y = screen_height;
new_image = color_average_resize(img->rgb, img->width, img->height, resol_x, resol_y);
} else if ((0 < resol_x && 0 < resol_y)) {
// specific resolution
new_image = color_average_resize(img->rgb, img->width, img->height, resol_x, resol_y);
} else
// original resolution
return -1;
if (img->alpha)
new_alpha = alpha_resize(img->alpha, img->width, img->height, resol_x, resol_y);
free(img->rgb);
free(img->alpha);
img->rgb = new_image;
img->alpha = new_alpha;
img->width = resol_x;
img->height = resol_y;
return 0;
}
void scale_pic(unsigned char **buffer, int x1, int y1, int xstart, int ystart, int xsize, int ysize,
int *imx, int *imy, int *dxp, int *dyp, int *dxo, int *dyo, int alpha)
{
float xfact=0, yfact=0;
int txsize=0, tysize=0;
int txstart =xstart, tystart= ystart;
if (xsize > (ex-xstart)) txsize= (ex-xstart);
else txsize= xsize;
if (ysize > (ey-ystart)) tysize= (ey-ystart);
else tysize=ysize;
xfact= 1000*txsize/x1;
xfact= xfact/1000;
yfact= 1000*tysize/y1;
yfact= yfact/1000;
if ( xfact <= yfact)
{
*imx=(int)x1*xfact;
*imy=(int)y1*xfact;
}
else
{
*imx=(int)x1*yfact;
*imy=(int)y1*yfact;
}
if ((x1 != *imx) || (y1 != *imy))
*buffer=color_average_resize(*buffer,x1,y1,*imx,*imy,alpha);
*dxp=0;
*dyp=0;
*dxo=txstart;
*dyo=tystart;
}
int do_scale_adjust(int scale, struct image *img)
{
Log(LOG_DEBUG, "function:%s --- paralist{scale=%d}\n", __func__, scale);
if (SCALE_DEF != scale && scale >= SCALE_MIN && scale <= SCALE_MAX) {
int nx = 0, ny = 0;
unsigned char * new_image = NULL, *new_alpha = NULL;
nx = (int) img->width * scale / 100;
ny = (int) img->height * scale / 100;
new_image = color_average_resize(img->rgb, img->width, img->height, nx, ny);
if (img->alpha)
new_alpha = alpha_resize(img->alpha, img->width, img->height, nx, ny);
free(img->rgb);
free(img->alpha);
img->rgb = new_image;
img->alpha = new_alpha;
img->width = nx;
img->height = ny;
}
return 0;
}
static inline void do_fit_to_screen(struct image *i, int screen_width, int screen_height, int ignoreaspect, int cal)
{
if((i->width > screen_width) || (i->height > screen_height))
{
unsigned char * new_image, * new_alpha = NULL;
int nx_size = i->width, ny_size = i->height;
if(ignoreaspect)
{
if(i->width > screen_width)
nx_size = screen_width;
if(i->height > screen_height)
ny_size = screen_height;
}
else
{
if((i->height * screen_width / i->width) <= screen_height)
{
nx_size = screen_width;
ny_size = i->height * screen_width / i->width;
}
else
{
nx_size = i->width * screen_height / i->height;
ny_size = screen_height;
}
}
if(cal)
new_image = color_average_resize(i->rgb, i->width, i->height, nx_size, ny_size);
else
new_image = simple_resize(i->rgb, i->width, i->height, nx_size, ny_size);
if(i->alpha)
new_alpha = alpha_resize(i->alpha, i->width, i->height, nx_size, ny_size);
if(i->do_free)
{
free(i->alpha);
free(i->rgb);
}
i->rgb = new_image;
i->alpha = new_alpha;
i->do_free = 1;
i->width = nx_size;
i->height = ny_size;
}
}
