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author | Eugene Sandulenko | 2010-07-29 19:54:54 +0000 |
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committer | Eugene Sandulenko | 2010-10-12 21:47:06 +0000 |
commit | 221fc150c6418c3eda949c149b3f6997f06ee341 (patch) | |
tree | e80611aeb87658484a3869ef7b9507cca138f4b5 /engines/sword25/util/lua/lzio.h | |
parent | 1af6e17b0e96cdb934c828a0fe09c1a035d1e000 (diff) | |
download | scummvm-rg350-221fc150c6418c3eda949c149b3f6997f06ee341.tar.gz scummvm-rg350-221fc150c6418c3eda949c149b3f6997f06ee341.tar.bz2 scummvm-rg350-221fc150c6418c3eda949c149b3f6997f06ee341.zip |
SWORD25: Moving Lua one level up
svn-id: r53178
Diffstat (limited to 'engines/sword25/util/lua/lzio.h')
-rwxr-xr-x | engines/sword25/util/lua/lzio.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/engines/sword25/util/lua/lzio.h b/engines/sword25/util/lua/lzio.h new file mode 100755 index 0000000000..51d695d8c1 --- /dev/null +++ b/engines/sword25/util/lua/lzio.h @@ -0,0 +1,67 @@ +/* +** $Id: lzio.h,v 1.21.1.1 2007/12/27 13:02:25 roberto Exp $ +** Buffered streams +** See Copyright Notice in lua.h +*/ + + +#ifndef lzio_h +#define lzio_h + +#include "lua.h" + +#include "lmem.h" + + +#define EOZ (-1) /* end of stream */ + +typedef struct Zio ZIO; + +#define char2int(c) cast(int, cast(unsigned char, (c))) + +#define zgetc(z) (((z)->n--)>0 ? char2int(*(z)->p++) : luaZ_fill(z)) + +typedef struct Mbuffer { + char *buffer; + size_t n; + size_t buffsize; +} Mbuffer; + +#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0) + +#define luaZ_buffer(buff) ((buff)->buffer) +#define luaZ_sizebuffer(buff) ((buff)->buffsize) +#define luaZ_bufflen(buff) ((buff)->n) + +#define luaZ_resetbuffer(buff) ((buff)->n = 0) + + +#define luaZ_resizebuffer(L, buff, size) \ + (luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \ + (buff)->buffsize = size) + +#define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0) + + +LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n); +LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader, + void *data); +LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */ +LUAI_FUNC int luaZ_lookahead (ZIO *z); + + + +/* --------- Private Part ------------------ */ + +struct Zio { + size_t n; /* bytes still unread */ + const char *p; /* current position in buffer */ + lua_Reader reader; + void* data; /* additional data */ + lua_State *L; /* Lua state (for reader) */ +}; + + +LUAI_FUNC int luaZ_fill (ZIO *z); + +#endif |