[Mesa-dev] [Bug 27841] GLX extension to mark backbuffer purgeable after using glXCopySubBufferMESA

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27841

Ian Romanick <idr at freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |idr at freedesktop.org,
                   |                            |krh at bitplanet.net

--- Comment #1 from Ian Romanick <idr at freedesktop.org> 2010-04-26 11:42:48 PDT ---
There is a mechanism, but we have not implemented it in Mesa yet.  I think
GL_EXT_discard_framebuffer (link below), should suit your needs.  The intended
use is with framebuffer objects, but will purge the window backbuffer is the
current FBO is 0.

If this looks like the right tool, please change the bug subject to "Implement
GL_EXT_discard_framebuffer".

http://www.khronos.org/registry/gles/extensions/EXT/EXT_discard_framebuffer.txt

I'm adding Kristian to the CC list because he has done a lot of work in this
area.

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