buzz4j

Java bindings for HarfBuzz.

Usage

This library only implements a tiny subset of HarfBuzz API. I focused on the use-case for my own projects:

import dev.poire.buzz4j.HarfBuzz;

HarfBuzz.shapeString(fontPath, text);

Which gives you a list of glyph and their drawing position:

ShapeGlyph{
  int glyphId
  int advanceX
  int advanceY
  int offsetX
  int offsetY
}[]

Compile

There is a submodule for harfbuzz. Start by fetching the submodule sources with git submodule update.

Then, cd harfbuzz and follow the official instructions (meson recommended):

meson build --wrap-mode=default
meson compile -C build

The harfbuzz/build directory should have, at minimum:

src/harfbuzz.lib
src/harfbuzz.dll
subprojects/freetype-2.13.0/freetype-6.dll
subprojects/libpng-1.6.39/png16-16.dll

Now, back in the root directory, run tests and build a debug library:

./gradlew build

This will build a JAR in build/libs, but it is then recommended to build the shared library in release mode for distribution:

./gradlew assembleRelease

The build outputs for distribution are:

build/libs/buzz4j-1.0-SNAPSHOT.jar
buzz4jni/build/lib/main/release/buzz4j.dll

Keep in mind that you will need dependencies at runtime:

harfbuzz.dll
freetype-6.dll
png16-16.dll

License

MIT License. See LICENSE for details.