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OpenTTD
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Filter using Zlib compression. More...
Public Member Functions | |
| ZlibSaveFilter (SaveFilter *chain, byte compression_level) | |
| Initialise this filter. | |
| ~ZlibSaveFilter () | |
| Clean up what we allocated. | |
| void | WriteLoop (byte *p, size_t len, int mode) |
| Helper loop for writing the data. | |
| void | Write (byte *buf, size_t size) |
| Write a given number of bytes into the savegame. | |
| void | Finish () |
| Prepare everything to finish writing the savegame. | |
Public Member Functions inherited from SaveFilter | |
| SaveFilter (SaveFilter *chain) | |
| Initialise this filter. | |
| virtual | ~SaveFilter () |
| Make sure the writers are properly closed. | |
Data Fields | |
| z_stream | z |
| Stream state we are writing to. | |
Data Fields inherited from SaveFilter | |
| SaveFilter * | chain |
| Chained to the (savegame) filters. | |
Filter using Zlib compression.
Definition at line 2142 of file saveload.cpp.
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inline |
Initialise this filter.
| chain | The next filter in this chain. |
| compression_level | The requested level of compression. |
Definition at line 2150 of file saveload.cpp.
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inline |
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inlinevirtual |
Write a given number of bytes into the savegame.
| buf | The bytes to write. |
| len | The number of bytes to write. |
Implements SaveFilter.
Definition at line 2197 of file saveload.cpp.
References WriteLoop().
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inline |
Helper loop for writing the data.
| p | The bytes to write. |
| len | Amount of bytes to write. |
| mode | Mode for deflate. |
For the poor next soul who sees many valgrind warnings of the "Conditional jump or move depends on uninitialised value(s)" kind: According to the author of zlib it is not a bug and it won't be fixed. http://groups.google.com/group/comp.compression/browse_thread/thread/b154b8def8c2a3ef/cdf9b8729ce17ee2 [Mark Adler, Feb 24 2004, 'zlib-1.2.1 valgrind warnings' in the newsgroup comp.compression]
Definition at line 2168 of file saveload.cpp.
References SaveFilter::chain, MEMORY_CHUNK_SIZE, SlError(), SaveFilter::Write(), and z.
1.8.1.2