Mouse cursor disappearing after changing it multiple times

tonihele · July 23, 2016, 11:34am

Mouse cursor disappearing after changing it multiple times. When you do it often enough and there is no way to get it back. We are using the same JmeCursor object instance. And setting it simply with com.jme3.input.InputManager inputManager.setMouseCursor().

We are changing it often depending on what the user interaction is. I wonder if the problem is the same as:

tonihele · July 23, 2016, 11:37am

I also tested with LWJGL 3. And the same problem exists. The problem is present in both JME 3.0 and 3.1.

tonihele · July 23, 2016, 11:42am

Woah, a stack appeared after awhile:

Jul 23, 2016 2:41:14 PM com.jme3.input.lwjgl.LwjglMouseInput setNativeCursor
SEVERE: null
org.lwjgl.LWJGLException: Could not allocate DIB section.
    at org.lwjgl.opengl.WindowsDisplay.nCreateCursor(Native Method)
    at org.lwjgl.opengl.WindowsDisplay.doCreateCursor(WindowsDisplay.java:721)
    at org.lwjgl.opengl.WindowsDisplay.createCursor(WindowsDisplay.java:717)
    at org.lwjgl.input.Cursor.createCursors(Cursor.java:207)
    at org.lwjgl.input.Cursor.<init>(Cursor.java:107)
    at com.jme3.input.lwjgl.LwjglMouseInput.setNativeCursor(LwjglMouseInput.java:158)
    at com.jme3.input.InputManager.setMouseCursor(InputManager.java:421)
    at toniarts.openkeeper.view.PlayerInteractionState.setCursor(PlayerInteractionState.java:549)
    at toniarts.openkeeper.view.PlayerInteractionState.onMouseMotionEvent(PlayerInteractionState.java:252)
    at com.jme3.input.InputManager.processQueue(InputManager.java:827)
    at com.jme3.input.InputManager.update(InputManager.java:907)
    at com.jme3.app.LegacyApplication.update(LegacyApplication.java:725)
    at com.jme3.app.SimpleApplication.update(SimpleApplication.java:227)
    at com.jme3.system.lwjgl.LwjglAbstractDisplay.runLoop(LwjglAbstractDisplay.java:151)
    at com.jme3.system.lwjgl.LwjglDisplay.runLoop(LwjglDisplay.java:193)
    at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:232)
    at java.lang.Thread.run(Thread.java:745)

tonihele · July 23, 2016, 11:51am

When the stacks start to appear the application is completely frozen. Before that only the cursor disappears which is a major inconvenience but the app remains usable otherwise.

tonihele · July 25, 2016, 9:22am

Should I open a GitHub issue on this?

pspeed · July 25, 2016, 2:09pm

It does look exactly related to the bug you mention in the first post.

tonihele · July 26, 2016, 8:30am

I took that as an approval

Momoko_Fan · July 27, 2016, 3:12pm

Are you sure you can reproduce it in LWJGL3?

Because it does use the caching:

github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-lwjgl3/src/main/java/com/jme3/input/lwjgl/GlfwMouseInput.java#L228-L235


    }
});
glfwSetMouseButtonCallback(window, mouseButtonCallback = new GLFWMouseButtonCallback() {
    @Override
    public void invoke(final long window, final int button, final int action, final int mods) {
        onMouseButton(window, button, action, mods);
    }

tonihele · July 27, 2016, 3:47pm

From build.gradle:

jmonkeyengine_version = '[3.1,)'
compile "org.jmonkeyengine:jme3-lwjgl3:$jmonkeyengine_version"

Hmm, you are right. Last time I tried I was sure I was using LWJGL3 too. Maybe I blew the testing then. Now when I tried, the cursor didn’t disappear. But all of our cursors were flipped and in weird palette (+ animated cursor doesn’t work). I don’t remember this from my previous tests.