deflate_source(source const& src, bool compress, bool pull = true)
: octet_reader(src)
, pull(pull)
, compress(compress)
{
str.zalloc = 0;
str.zfree = 0;
str.opaque = 0;
if (compress)
mz_deflateInit(&str, MZ_DEFAULT_COMPRESSION);
else
mz_inflateInit(&str);
str.avail_in = 0;
str.avail_out = 0;
prepare_out();
}
static int lmz_deflator_init(lua_State* L) {
int level = luaL_optint(L, 1, MZ_DEFAULT_COMPRESSION);
if (level < MZ_DEFAULT_COMPRESSION || level > MZ_BEST_COMPRESSION) {
luaL_error(L, "Compression level must be between -1 and 9");
}
lmz_stream_t* stream = lua_newuserdata(L, sizeof(*stream));
mz_streamp miniz_stream = &(stream->stream);
luaL_getmetatable(L, "miniz_deflator");
lua_setmetatable(L, -2);
memset(miniz_stream, 0, sizeof(*miniz_stream));
int status = mz_deflateInit(miniz_stream, level);
if (status != MZ_OK) {
const char* msg = mz_error(status);
if (msg) {
luaL_error(L, "Problem initializing stream: %s", msg);
} else {
luaL_error(L, "Problem initializing stream");
}
}
stream->mode = 0;
return 1;
}
