2011/6/12 Mathias Fröhlich <mathias.froehl...@gmx.net>: > 0005-r600g-Make-use-of-PIPE_TRANSFER_DISCARD_WHOLE_RESOUR.patch: > This makes use of the DISCARD_WHOLE_RESOURCE flag for memory mappings.
That won't work. The old buffer may still be set as a vertex buffer/texture. If you replace the whole buffer like that, all the states in all existing pipe contexts where the old buffer is set in must be re-emitted as well (e.g. by marking them as dirty), which is unfun. A simplier way to implement the DISCARD flag is to create a temporary buffer for the new data and make the gpu copy it to the original one (like we do for textures). However we don't have accelerated copy_region for buffers yet. Marek _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
