/**
* @brief Read a PNG file.
*
* @param fname filename (with path, but may lack extension)
* @param img pointer suitable to store the image data
*
* @return 0 (ok), -1 (color depth too low), -2 (not accessible),
* -5 (#pngRead() error) or -8 (#convert_ARGB() error)
*/
int bpRead(const char *fname, guiImage *img)
{
int r;
fname = fExist(fname);
if (!fname)
return -2;
r = pngRead(fname, img);
if (r != 0) {
mp_msg(MSGT_GPLAYER, MSGL_DBG2, "[bitmap] read error #%d: %s\n", r, fname);
return -5;
}
if (img->Bpp < 24) {
mp_msg(MSGT_GPLAYER, MSGL_DBG2, "[bitmap] bpp too low: %u\n", img->Bpp);
return -1;
}
if (!convert_ARGB(img))
return -8;
return 0;
}
int bpRead( char * fname, txSample * bf )
{
fname=fExist( fname );
if ( fname == NULL ) return -2;
if ( pngRead( fname,bf ) )
{
mp_dbg( MSGT_GPLAYER,MSGL_FATAL,"[bitmap] unknown file type ( %s )\n",fname );
return -5;
}
if ( bf->BPP < 24 )
{
mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[bitmap] Sorry, only 24 and 32 bpp bitmaps are supported.\n" );
return -1;
}
if ( conv24to32( bf ) ) return -8;
#ifdef WORDS_BIGENDIAN
swab(bf->Image, bf->Image, bf->ImageSize);
#endif
bgr2rgb( bf );
Normalize( bf );
return 0;
}
