Add an AWT toolkit and a sound mixer for Haiku

[duncanmcqueen]

Summary

This pull request adds an AWT toolkit and a sound mixer for Haiku. It needs the Haiku host fixes #73, #74 and #75 (they replace #60); please merge those first. This branch still contains the old commits of #60; I will rebase it when those pull requests are merged.

• gnu.java.awt.peer.haiku: an AWT toolkit. Windows, menus, file panels, cursors, the clipboard (text, pictures, files and other MIME data), drag and drop, printing (through the Haiku print server), input methods, minimize and zoom, modal and always-on-top windows are native Haiku parts. The other widgets use the Swing peers (gnu.java.awt.peer.swing). Haiku's font engine measures and draws the text, so the text looks like the text of other Haiku applications.
• gnu.javax.sound.sampled.haiku: a javax.sound.sampled mixer. It has Clip and SourceDataLine lines that play through the Haiku media server.
• native/jni/haiku-peer: libhaikupeer (C++, links with -lbe -ltracker -lmedia -ltranslation). include/Makefile.am makes its JNI headers.
• configure: --enable-haiku-peer. It is on by default when the host is Haiku. Then HaikuToolkit is the default toolkit and the Haiku mixer is in the MixerProvider list. On other hosts nothing changes.

Some parts work fully only with the fixes in the related pull requests: drag and drop (#69, #70, #71, #72), Frame.setState() (#66), PrinterJob (#67), canDisplay() (#68), and the build fixes (#62, #63, #64). With Kaffe, the Thread fix in #65 is necessary for any program to start (Kaffe makes the main Thread object without a constructor).

Tests

On Haiku R1/beta6 x86_64 with Kaffe 1.1.10 (interpreter): AWT widget tests, Swing, the JDK 1.0/1.1 demo applets, the clipboard in both directions with other applications, drag and drop with the file manager and a text editor, printing to the Haiku "Preview" printer, simulated input method sessions, sound clips and streams (timing checked), and modal dialogs. I built this branch alone on Haiku; it builds. I tested the programs above with all five pull requests together.

The project page has screenshots: https://duncanmcqueen.github.io/bekaffe/

AI assistance

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[duncanmcqueen]

I added a commit: Haiku peer: draw shapes and images with native code.

On Kaffe's interpreter, per-pixel Java code is very slow. The new file native/jni/haiku-peer/gnu_java_awt_peer_haiku_HaikuRaster.cpp draws the usual cases directly in the int[] pixels of the image: rectangles, 1-pixel lines, paths (with or without anti-aliasing), thin outlines, solid colours and linear gradients, images through any affine transform, and copyArea. Other cases (clips that are not rectangles, texture paints, other composite rules) use the Java code of AbstractGraphics2D as before.

Measured on Haiku with Kaffe (microseconds per operation, before / after):

Operation	Before	After
fillRect 100x100	1065	30
fillOval 100x100	7350	530
line, width 4	42100	310
gradient fill	160600	250
translucent image 100x100	16730	170
scaled image	327720	560
rotated image	2965950	200
copyArea 200x100	207620	60

The full build passes check_jni_methods.sh. The widget tests and the JDK 1.0/1.1 demo applets show correct output. This commit does not have a Signed-off-by line yet; the owner will add it.

🤖 Generated with Claude Code