void
PNGLINKAGEMODE wx_png_warning(png_structp png_ptr, png_const_charp message)
{
wxPNGInfoStruct *info = png_ptr ? WX_PNG_INFO(png_ptr) : NULL;
if ( !info || info->verbose )
wxLogWarning( wxString::FromAscii(message) );
}
// from pngerror.c
// so that the libpng doesn't send anything on stderr
static void
PNGLINKAGEMODE wx_PNG_error(png_structp png_ptr, png_const_charp message)
{
wx_PNG_warning(NULL, message);
// we're not using libpng built-in jump buffer (see comment before
// wxPNGInfoStruct above) so we have to return ourselves, otherwise libpng
// would just abort
longjmp(WX_PNG_INFO(png_ptr)->jmpbuf, 1);
}
static void PNGLINKAGEMODE wx_PNG_stream_writer( png_structp png_ptr, png_bytep data,
png_size_t length )
{
WX_PNG_INFO(png_ptr)->stream.out->Write(data, length);
}
static void PNGLINKAGEMODE wx_PNG_stream_reader( png_structp png_ptr, png_bytep data,
png_size_t length )
{
WX_PNG_INFO(png_ptr)->stream.in->Read(data, length);
}
