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Ingvar Stepanyan d1cff7d84e Consolidate C++ builds

Use a shared base image with fixed Emscripten version, autotools and optimisation flags for all C++ codecs.

Additionally, move build commands for codecs themselves to Makefile - they're already platform-specific, and Make allows for better caching and parallelisation that custom ad-hoc scripts.

This is essentially same as #777 but for C++.

2020-07-28 18:05:09 +01:00

example.html

Simplify memory management for other C++ codecs

2020-07-28 16:35:00 +01:00

imagequant.cpp

Switch vals to thread_locals

2020-07-28 16:35:00 +01:00

imagequant.d.ts

Simplify memory management for other C++ codecs

2020-07-28 16:35:00 +01:00

imagequant.js

Consolidate C++ builds

2020-07-28 18:05:09 +01:00

imagequant.wasm

Consolidate C++ builds

2020-07-28 18:05:09 +01:00

Makefile

Consolidate C++ builds

2020-07-28 18:05:09 +01:00

package-lock.json

Easter egg (#123 )

2018-08-06 12:42:23 +01:00

package.json

Consolidate C++ builds

2020-07-28 18:05:09 +01:00

README.md

Simplify memory management for other C++ codecs

2020-07-28 16:35:00 +01:00

README.md

ImageQuant

Source: https://github.com/ImageOptim/libimagequant
Version: v2.12.1

Dependencies

Docker

Example

See example.html

API

`int version()`

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

`RawImage quantize(std::string buffer, int image_width, int image_height, int numColors, float dithering)`

Quantizes the given images, using at most numColors, a value between 2 and 256. dithering is a value between 0 and 1 controlling the amount of dithering. RawImage is a class with 3 fields: buffer, width, and height.

`RawImage zx_quantize(std::string buffer, int image_width, int image_height, float dithering)`

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