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AWTGLCanvas: Synchronize paintGL() to avoid destroyContext while painting

This commit is contained in:
Elias Naur 2006-11-07 15:14:31 +00:00
parent 8164a4a00a
commit 9f3de4fd81
1 changed files with 32 additions and 30 deletions
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62
src/java/org/lwjgl/opengl/AWTGLCanvas.java
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@ -283,43 +283,45 @@ public class AWTGLCanvas extends Canvas implements Drawable, ComponentListener,
* be overridden to do GL operations.
*/
public final void paint(Graphics g) {
try {
if (peer_info == null) {
this.peer_info = implementation.createPeerInfo(this, pixel_format);
}
peer_info.lockAndGetHandle();
synchronized (SYNC_LOCK) {
try {
if (context == null) {
this.context = new Context(peer_info, drawable != null ? drawable.getContext() : null);
first_run = true;
if (peer_info == null) {
this.peer_info = implementation.createPeerInfo(this, pixel_format);
}
if (reentry_count == 0)
context.makeCurrent();
reentry_count++;
peer_info.lockAndGetHandle();
try {
if (update_context) {
context.update();
update_context = false;
if (context == null) {
this.context = new Context(peer_info, drawable != null ? drawable.getContext() : null);
first_run = true;
}
AWTCanvasInputImplementation current_input = awt_input;
if (current_input != null)
current_input.processInput(peer_info);
if (first_run) {
first_run = false;
initGL();
}
paintGL();
} finally {
reentry_count--;
if (reentry_count == 0)
Context.releaseCurrentContext();
context.makeCurrent();
reentry_count++;
try {
if (update_context) {
context.update();
update_context = false;
}
AWTCanvasInputImplementation current_input = awt_input;
if (current_input != null)
current_input.processInput(peer_info);
if (first_run) {
first_run = false;
initGL();
}
paintGL();
} finally {
reentry_count--;
if (reentry_count == 0)
Context.releaseCurrentContext();
}
} finally {
peer_info.unlock();
}
} finally {
peer_info.unlock();
} catch (LWJGLException e) {
throw new RuntimeException(e);
}
} catch (LWJGLException e) {
throw new RuntimeException(e);
}
}