Try as I might... no sound. LWJGL2.9 works, of course.

My init code:
String defaultDeviceName = alcGetString(0, ALC_DEFAULT_DEVICE_SPECIFIER);
LOGGER.finer(() -> "Default OpenAL device: " + defaultDeviceName);
long device = alcOpenDevice(defaultDeviceName);
if (device == 0L) {
throw new IllegalStateException("Can't open device " + defaultDeviceName);
}
int[] attributes = {0};
long context = alcCreateContext(device, attributes);
if (!alcMakeContextCurrent(context)) {
throw new IllegalStateException("Context cannot be made current");
}
alcCapabilities = createCapabilities(device);
alCapabilities = createCapabilities(alcCapabilities);

Prints "Default OpenAL device: OpenAL Soft", as expected. No errors seem to be raised with alGetError (and why should they - the rest of my code is unchanged from 2.9)

Cas

Hey Cas,

A few things to try:

1. Pass NULL to alcOpenDevice:

alcOpenDevice((ByteBuffer)null)
2. Print the list of the available devices with:

List<String> devices = ALUtil.getStringList(NULL, ALC_ALL_DEVICES_SPECIFIER)
and use one of those names with alcOpenDevice.

3. Enable OpenAL Soft's logging by setting the ALSOFT_LOGLEVEL=3 environment variable. More info here. Anything interesting in the output?

4. Use the OpenAL Soft shared library that comes with LWJGL 2. You can do that easily with -Dorg.lwjgl.openal.libname=<path_to_OpenAL64.dll>. Does that resolve the issue?

Firstly the AL debug output goes like this:

AL lib: (II) alc_initconfig: Initializing library v1.19.1-0da960c HEAD
AL lib: (II) alc_initconfig: Supported backends: wasapi, dsound, winmm, null, wave
AL lib: (II) ReadALConfig: Loading config C:\Users\foo\AppData\Roaming\alsoft.ini...
AL lib: (II) GetProcBinary: Got path: C:\Program Files\Java\zulu11.2.3-jdk11.0.1-win_x64\bin
AL lib: (II) ReadALConfig: Loading config C:\Program Files\Java\zulu11.2.3-jdk11.0.1-win_x64\bin\alsoft.ini...
AL lib: (II) GetConfigValue: Key disable-cpu-exts not found
AL lib: (II) FillCPUCaps: Detected max CPUID function: 0xd (ext. 0x80000008)
AL lib: (II) FillCPUCaps: Vendor ID: ""
AL lib: (II) FillCPUCaps: Name: "Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz"
AL lib: (II) FillCPUCaps: Extensions: +SSE +SSE2 +SSE3 +SSE4.1
AL lib: (II) GetConfigValue: Key rt-prio not found
AL lib: (II) GetConfigValue: Key resampler not found
AL lib: (II) GetConfigValue: Key trap-al-error not found
AL lib: (II) GetConfigValue: Key trap-alc-error not found
AL lib: (II) GetConfigValue: Key reverb/boost not found
AL lib: (II) GetConfigValue: Key drivers not found
AL lib: (II) ALCwasapiProxy_messageHandler: Starting message thread
AL lib: (II) ALCwasapiProxy_messageHandler: Message thread initialization complete
AL lib: (II) ALCwasapiProxy_messageHandler: Starting message loop
AL lib: (II) alc_initconfig: Initialized backend "wasapi"
AL lib: (II) alc_initconfig: Added "wasapi" for playback
AL lib: (II) alc_initconfig: Added "wasapi" for capture
AL lib: (II) GetConfigValue: Key excludefx not found
AL lib: (II) GetConfigValue: Key default-reverb not found
AL lib: (II) GetConfigValue: Key channels not found
AL lib: (II) GetConfigValue: Key sample-type not found
AL lib: (II) GetConfigValue: Key frequency not found
AL lib: (II) GetConfigValue: Key periods not found
AL lib: (II) GetConfigValue: Key period_size not found
AL lib: (II) GetConfigValue: Key sources not found
AL lib: (II) GetConfigValue: Key slots not found
AL lib: (II) GetConfigValue: Key sends not found
AL lib: (II) ALCwasapiProxy_messageHandler: Got message "Open Device" (0x0400, lparam=00000176856784F8, wparam=00000076531FF120)
AL lib: (II) GetConfigValue: Key ambi-format not found
AL lib: (II) alcOpenDevice: Created device 000001768BB05A50, "OpenAL Soft on Speakers (High Definition Audio Device)"
AL lib: (II) GetConfigValue: Key hrtf not found
AL lib: (II) UpdateDeviceParams: Pre-reset: Stereo, Float, 44100hz, 1024 update size x3
AL lib: (II) ALCwasapiProxy_messageHandler: Got message "Reset Device" (0x0401, lparam=00000176856784F8, wparam=00000076531FF020)
AL lib: (II) UpdateDeviceParams: Post-reset: Stereo, Float, 48000hz, 960 update size x3
AL lib: (II) GetConfigValue: Key stereo-mode not found
AL lib: (II) aluInitRenderer: HRTF disabled
AL lib: (II) GetConfigValue: Key cf_level not found
AL lib: (II) aluInitRenderer: BS2B disabled
AL lib: (II) GetConfigValue: Key stereo-encoding not found
AL lib: (II) aluInitRenderer: UHJ disabled
AL lib: (II) UpdateDeviceParams: Channel config, Dry: 2, FOA: 0, Real: 0
AL lib: (II) UpdateDeviceParams: Allocating 2 channels, 16384 bytes
AL lib: (II) UpdateDeviceParams: Max sources: 256 (255 + 1), effect slots: 64, sends: 2
AL lib: (II) GetConfigValue: Key dither not found
AL lib: (II) GetConfigValue: Key dither-depth not found
AL lib: (II) UpdateDeviceParams: Dithering disabled
AL lib: (II) GetConfigValue: Key output-limiter not found
AL lib: (II) UpdateDeviceParams: Output limiter enabled
AL lib: (II) UpdateDeviceParams: Fixed device latency: 1000000ns
AL lib: (II) ALCwasapiProxy_messageHandler: Got message "Start Device" (0x0402, lparam=00000176856784F8, wparam=00000076531FF020)
AL lib: (II) GetConfigValue: Key volume-adjust not found
AL lib: (II) alcCreateContext: Created context 00000176FF514110

Which to my mind looks like everything is good.

Cas

Also hampering my testing, I'm getting a ton of native crashes. It crashes 50% of the time, sometimes with a Hotspot error log, sometimes with bizarro VM corruption like being unable to find classes, sometimes just aborting without any explanation. I don't think this is related to the sound but it's hard to isolate. Here's an example:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffb7f52b9c3, pid=1292, tid=20772
#
# JRE version: OpenJDK Runtime Environment (11.0.1+13) (build 11.0.1+13-LTS)
# Java VM: OpenJDK 64-Bit Server VM (11.0.1+13-LTS, mixed mode, tiered, compressed oops, g1 gc, windows-amd64)
# Problematic frame:
# C  [CoreMessaging.dll+0xb9c3]
#
# No core dump will be written. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Projects\Battledroid\hs_err_pid1292.log
#
# If you would like to submit a bug report, please visit:
#   http://www.azulsystems.com/support/
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

Cas:)

FWIW the hotspot log referred to there contains this:

Command Line: -Djava.util.logging.config.file=C:\Projects\Resources\logging.properties -ea --illegal-access=permit -Xss1m -Djava.library.path=C:\Projects\Common11\lib\windows64;C:\Projects\Steam11\lib\windows -XX:MaxDirectMemorySize=1024m -Xmx1024m -Xms256m -XX:MaxGCPauseMillis=1 -Dorg.lwjgl.util.NoChecks=false -Dspgl3.game.Launcher.resources=resources-steam.dat -Dspgl3.game.Game.gameResource=game.steam -Dnet.puppygames.steam.Steam.DEBUG=true -Djava.util.logging.config.file=C:\Projects\Battledroid\src-client/logging.properties -Dnet.puppygames.common.threading.TaskGraphBuilder.check=truex -Dfile.encoding=Cp1252 spgl3.game.Launcher

Host: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz, 8 cores, 15G,  Windows 10 , 64 bit Build 17134 (10.0.17134.556)
Time: Sat Feb 16 13:25:56 2019 GMT Standard Time elapsed time: 4 seconds (0d 0h 0m 4s)

---------------  T H R E A D  ---------------

Current thread (0x00000210f6fcd800):  JavaThread "main" [_thread_in_native, id=20772, stack(0x000000f809800000,0x000000f809900000)]

Stack: [0x000000f809800000,0x000000f809900000],  sp=0x000000f8098fe630,  free space=1017k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  [CoreMessaging.dll+0xb9c3]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  org.lwjgl.system.JNI.invokeV(J)V+0
j  org.lwjgl.glfw.GLFW.glfwPollEvents()V+8
j  spgl3.game.Display.processMessages()V+6
j  spgl3.game.Display.update()V+3
j  bots.client.Splash$1.execute()V+54
j  spgl3.opengl.AbstractRenderer.build()Lspgl3/sprites/GeometryData;+117
j  spgl3.opengl.GLRenderer.render()V+1
j  bots.client.Splash.update(II)V+385
j  spgl3.game.Game.init(Ljava/util/Properties;Ljava/io/InputStream;)V+802
j  spgl3.game.Launcher.main([Ljava/lang/String;)V+247
v  ~StubRoutines::call_stub

siginfo: EXCEPTION_ACCESS_VIOLATION (0xc0000005), reading address 0x00007ffb00000050

Cas

- Does it always crash in glfwPollEvents()?
- Does it always crash in CoreMessaging.dll?
- Does it always crash relatively early in the game execution? I.e. while loading stuff in background threads or while JIT compilation is still happening.
- Do you launch the game from Eclipse? Does it crash when launching from the cli?

- Not always; it crashes in all sorts of totally random ways, in the manner of something clobbering memory randomly. VM crashes happen a lot but quite often it's in glfwPollEvents at the time. Might just be coincidence.
- See above
- Yes. Even running single-threaded.
- Yes, from Eclipse. Not tried CLI - will try that next.
- Also, sound mysteriously just started working 10 minutes ago. Didn't change anything. Stability however is still awful.

Cas

No difference from the CLI. Crashes similarly.

This minimal test code works fine, without crashing, which probably exonerates my display handling class that wraps GLFW:
package spgl3.game;

import java.io.File;
import javax.imageio.ImageIO;
import org.lwjgl.glfw.GLFWErrorCallback;
import spgl3.ui.Input;

class DisplayTest {

static GLFWErrorCallback errorCallback;

public static void main(String[] args) throws Exception {

errorCallback = GLFWErrorCallback.createPrint(System.err);
Display.setTitle("Display Test");
Display.setIcon(ImageIO.read(new File("C:\\Projects\\Battledroid\\src-client\\bd_icon.png")));
Display.create();
Input.init();
Mouse.setVisible(true);
while (!Display.isCloseRequested()) {
Display.update();
Display.sync(60);

Input.receive(new InputEventReceiver() {
@Override
public InputEventAction onMouseButtonEvent(MouseButtonEvent event) {
return InputEventAction.CONSUME;
}

@Override
public InputEventAction onMouseEnteredEvent(MouseEnteredEvent event) {
return InputEventAction.CONSUME;
}

@Override
public InputEventAction onMouseWheelEvent(MouseWheelEvent event) {
return InputEventAction.CONSUME;
}

@Override
public InputEventAction onMouseMovedEvent(MouseMovedEvent event) {
return InputEventAction.CONSUME;
}

@Override
public InputEventAction onKeyTypedEvent(KeyTypedEvent event) {
System.out.print(event.getCharacter());
return InputEventAction.CONSUME;
}

@Override
public InputEventAction onKeyEvent(KeyEvent event) {
return InputEventAction.CONSUME;
}
});
}

Input.cleanup();
Display.cleanup();
}

}

Cas

Sounds similar to http://forum.lwjgl.org/index.php?topic=6871.0, which is still without explanation. Could you please try some of the possible workarounds mentioned there? (e.g. running with -XX:-CriticalJNINatives and/or -Xcomp, running with parallel instead of G1GC)

-Xcomp : same symptoms
-XX:-CriticalJNINatives : same symptoms

Also, sound mysteriously stopped working again

Cas

Tried -Xint too, so that rules out the compiler and probably therefore the JRE itself.

Cas

Same problem with LWJGL3.2.0.

Cas

Ok, LWJGL 3.1.6 is fine, in as much as I've just run everything 10 times and not had a single crash whereas 3.2.x would crash 80% of the time.
Still no sound tho'

What changed between 3.1.6 and 3.2.0?

Cas

LOL, ignore me about the sound, I'd turned down the bloody volume to take a call. Sound is now fine, LWJGL is now fine, seems you have a massive memory crapping problem in 3.2.x though and I can't even begin to imagine how to start diagnosing it.

Ca s:)

I've reviewed all changes that went into 3.2.0, nothing stands out. Some things that might help:

- Which LWJGL bindings do you use? I'm guessing the core + GLFW, OpenGL and OpenAL only so far?
- Is there an unusual number of string encoding/decoding happening around the time it crashes?
- Are there multiple OpenGL contexts in use when it crashes?
- Would it be possible to produce a trace of LWJGL methods that Battledroid calls?
- A way to test this locally would be very useful. Could we work out a way for me to try a cut-down Battledroid build that reproduces the crash?