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Update README with instructions for using Emscripten.

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Dan Bagnell
2017-01-09 15:04:52 -05:00
parent 0c22f98142
commit 1d3fcb59cd
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readme.txt
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@@ -308,3 +308,12 @@ hasn't been tuned for max. quality yet.
supported when writing to .DDS, not .KTX. Also, only plain block by block
compression is supported when writing to ETC1, and .CRN does not support ETC1.
Compile to Javascript with Emscripten
-------------------------------------
Download and install Emscripten:
http://kripken.github.io/emscripten-site/docs/getting_started/downloads.html
From the root directory, run:
emcc -O3 emscripten/crn.cpp -I./inc -s EXPORTED_FUNCTIONS="['_malloc', '_free', '_crn_get_width', '_crn_get_height', '_crn_get_levels', '_crn_get_dxt_format', '_crn_get_bytes_per_block', '_crn_get_uncompressed_size', '_crn_decompress']" -s NO_EXIT_RUNTIME=1 -s NO_FILESYSTEM=1 -s ELIMINATE_DUPLICATE_FUNCTIONS=1 -s ALLOW_MEMORY_GROWTH=1 --memory-init-file 0 -o crunch.js