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| author | Sven Gothel <[email protected]> | 2014-02-13 21:32:36 +0100 |
|---|---|---|
| committer | Sven Gothel <[email protected]> | 2014-02-13 21:32:36 +0100 |
| commit | 908ebd99d1eb57ce773a1fdd67c76886da86b9e6 (patch) | |
| tree | b453b2beb3abc60acaabd87b2f2a5eb4d200302d /src/jogl/classes/jogamp/opengl/awt | |
| parent | 8be9d9b5bd71854f4da15294b47125a8a4975e31 (diff) | |
Bug 975 - GLJPanel's OffscreenDrawable shall not double swap (custom swap by GLEventListener using [AWT]GLReadBufferUtil)
When utilizing [AWT]GLReadBufferUtil it is usually desired to read from the front-buffer
instead the back-buffer. The latter may not be defined, e.g. when using MSAA.
A GLEventListener utilizing [AWT]GLReadBufferUtil,
must perform the drawable.swapBuffers() to be able to read from the front-buffer.
Usually GLAutoDrawable.setAutoSwapBuffer(false) should be called here,
to avoid a double swap - however GLJPanel does not support toggling auto-swap
since it requires to control swap for it's own read-pixels.
Remedy for GLJPanel:
- GLJPanel issues helper.setAutoSwapBufferMode(false) - immutable
- Enable GLJPanel.swapBuffer() if initializes
This was previously disabled.
- GLJPanel's OffscreenBackend listens to surfaceUpdated,
to be notified whether postGL needs to swap buffer
or the drawable.swapBuffer() was already called between preGL and postGL.
See unit tests adding/removing a snapshot GLEventListener
performing swapBuffers() and setting auto-swap accordingly.
Diffstat (limited to 'src/jogl/classes/jogamp/opengl/awt')
0 files changed, 0 insertions, 0 deletions