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Ingvar Stepanyan 27ae47117e Leverage make -j to parallelise C++ builds

We've been running each Make command in a single thread, resulting in fairly slow builds for C++ codecs.

This change instead runs all `make` invocations with `-j` defaulting to number of cores (retrieved via `nproc`).

On my machine Docker uses a VM configured to 4 cores out of 8 available. This change brings total build time for C++ codecs down from 10m28s to 7m5s (~3.5 minutes difference).

Note (1): I've converted imagequant builds to use built-in `make` as well to leverage this parallelisation and future-proof build script.
Note (2): we don't need to do the same for Rust, since Cargo parallelises builds by default.

2020-05-01 16:42:41 +01:00

..

build.sh

Leverage make -j to parallelise C++ builds

2020-05-01 16:42:41 +01:00

example.html

Make WebP decoder use memory views (#145 )

2018-08-21 13:29:53 +01:00

package-lock.json

Decoder for webp

2018-06-13 23:40:24 +01:00

package.json

Switch to Emscripten upstream

2020-05-01 15:00:10 +01:00

README.md

Update libwebp to 1.0.2 (#439 )

2019-02-05 15:45:03 +00:00

webp_dec.cpp

Make WebP decoder use memory views (#145 )

2018-08-21 13:29:53 +01:00

webp_dec.d.ts

Make WebP decoder use memory views (#145 )

2018-08-21 13:29:53 +01:00

webp_dec.js

Switch to Emscripten upstream

2020-05-01 15:00:10 +01:00

webp_dec.wasm

Switch to Emscripten upstream

2020-05-01 15:00:10 +01:00

README.md

WebP decoder

Source: https://github.com/webmproject/libwebp
Version: v1.0.2

Example

See example.html

API

`int version()`

Returns the version of libwebp as a number. va.b.c is encoded as 0x0a0b0c

`RawImage decode(std::string buffer)`

Decodes the given webp buffer into raw RGBA. RawImage is a class with 3 fields: buffer, width, and height.

`void free_result()`

Frees the result created by decode().