Fl_RGB_Image *img_to_rgb(const char *file)
{
FILE *fp;
size_t len;
unsigned char bytes[8];
struct stat st;
if (!file || stat(file, &st) == -1 || st.st_size > IMGFILE_MAX) {
return NULL;
}
/* get filetype from extension */
if (HASEXT(file, ".svg")) {
if (st.st_size > SVG_MAX) {
return NULL;
}
Fl_SVG_Image *svg = new Fl_SVG_Image(file, NULL);
CHECK_IF_LOADED(svg)
return svg;
}
if (HASEXT(file, ".svgz") || HASEXT(file, ".svg.gz")) {
if (st.st_size > SVGZ_MAX) {
return NULL;
}
Fl_SVG_Image *svg = new Fl_SVG_Image(file, NULL);
CHECK_IF_LOADED(svg)
return svg;
}
if (HASEXT(file, ".xpm")) {
Fl_XPM_Image *xpm = new Fl_XPM_Image(file);
CHECK_IF_LOADED(xpm)
Fl_RGB_Image *rgb = new Fl_RGB_Image(xpm, Fl_Color(0));
delete xpm;
return rgb;
}
if (HASEXT(file, ".xbm")) {
Fl_XBM_Image *in = new Fl_XBM_Image(file);
CHECK_IF_LOADED(in)
Fl_Image_Surface *surf = new Fl_Image_Surface(in->w(), in->h());
if (!surf) {
delete in;
return NULL;
}
surf->set_current();
fl_color(FL_WHITE);
fl_rectf(0, 0, in->w(), in->h());
fl_color(FL_BLACK);
in->draw(0, 0);
Fl_RGB_Image *rgb = surf->image();
delete in;
delete surf;
return rgb;
}
/* get filetype from magic bytes */
if (!(fp = fopen(file, "r"))) {
return NULL;
}
len = fread(bytes, 1, sizeof(bytes), fp);
if (ferror(fp) || len < sizeof(bytes)) {
fclose(fp);
return NULL;
}
fclose(fp);
if (memcmp(bytes, "\211PNG\r\n\032\n", 8) == 0) {
Fl_PNG_Image *png = new Fl_PNG_Image(file);
CHECK_IF_LOADED(png)
return png;
}
bool Fl_GroupAniSwitch::generate_img( Fl_Group* src, Fl_RGB_Image* &dst )
{
if ( src != NULL )
{
Fl_Image_Surface* imgsurf = new Fl_Image_Surface( src->w(), src->h(), 0 );
if ( imgsurf != NULL )
{
imgsurf->set_current();
imgsurf->draw( src );
dst = imgsurf->image();
Fl_Display_Device::display_device()->set_current();
delete imgsurf;
if ( dst != NULL )
return true;
}
}
return false;
}