void PictureBank::loadArchive( const std::string &filename, GfxEngine& engine )
{
std::cout << "reading image archive: " << filename << std::endl;
struct archive *a;
struct archive_entry *entry;
int rc;
a = archive_read_new();
archive_read_support_compression_all(a);
archive_read_support_format_all(a);
rc = archive_read_open_filename(a, filename.c_str(), 16384); // block size
if (rc != ARCHIVE_OK)
{
THROW("Cannot open archive " << filename);
}
SDL_Surface *surface;
SDL_RWops *rw;
const Uint32 bufferSize = 10000000; // allocated buffer
std::auto_ptr< Uint8 > buffer( new Uint8[ bufferSize ] );
if( buffer.get() == 0 )
THROW("Memory error, cannot allocate buffer size " << bufferSize);
std::string entryname;
Picture tmpPicture;
while( archive_read_next_header(a, &entry) == ARCHIVE_OK )
{
// for all entries in archive
entryname = archive_entry_pathname(entry);
if ((archive_entry_stat(entry)->st_mode & S_IFREG) == 0)
{
// not a regular file (maybe a directory). skip it.
continue;
}
if (archive_entry_stat(entry)->st_size >= bufferSize)
{
THROW("Cannot load archive: file is too big " << entryname << " in archive " << filename);
}
int size = archive_read_data(a, buffer.get(), bufferSize); // read data into buffer
rw = SDL_RWFromMem(buffer.get(), size);
surface = IMG_Load_RW(rw, 0);
SDL_SetAlpha( surface, 0, 0 );
tmpPicture.init( surface, Point() );
engine.loadPicture( tmpPicture );
setPicture( entryname, tmpPicture );
SDL_FreeRW(rw);
}
rc = archive_read_finish(a);
if (rc != ARCHIVE_OK)
{
THROW("Error while reading archive " << filename);
}
}
