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Add zstd compression support (#12515)

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20kdc 2022-09-28 14:06:14 +01:00 • committed by GitHub
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5 changed files with 95 additions and 13 deletions
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19
doc/client_lua_api.txt
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@ -897,14 +897,19 @@ Call these functions only at load time!
* Compress a string of data.
* `method` is a string identifying the compression method to be used.
* Supported compression methods:
* Deflate (zlib): `"deflate"`
* `...` indicates method-specific arguments. Currently defined arguments are:
* Deflate: `level` - Compression level, `0`-`9` or `nil`.
* Deflate (zlib): `"deflate"`
* Zstandard: `"zstd"`
* `...` indicates method-specific arguments. Currently defined arguments
are:
* Deflate: `level` - Compression level, `0`-`9` or `nil`.
* Zstandard: `level` - Compression level. Integer or `nil`. Default `3`.
Note any supported Zstandard compression level could be used here,
but these are subject to change between Zstandard versions.
* `minetest.decompress(compressed_data, method, ...)`: returns data
* Decompress a string of data (using ZLib).
* See documentation on `minetest.compress()` for supported compression methods.
* currently supported.
* `...` indicates method-specific arguments. Currently, no methods use this.
* Decompress a string of data using the algorithm specified by `method`.
* See documentation on `minetest.compress()` for supported compression
methods.
* `...` indicates method-specific arguments. Currently, no methods use this
* `minetest.rgba(red, green, blue[, alpha])`: returns a string
* Each argument is a 8 Bit unsigned integer
* Returns the ColorString from rgb or rgba values