On Mon, Apr 29, 2013 at 2:52 PM, Dave Airlie <airl...@gmail.com> wrote: > I've been playing with a gallium driver, and started looking at some > wierd gears behaviour, > > The vbo code maps the buffer with GL_MAP_FLUSH_EXPLICIT_BIT which to > me requires that at some point > we call ctx->Driver.FlushMappedBufferRange. Now the code attempts to > call it in vbo_exec_vtx_unmap > but from what I can see the length is always 0 in there and so we > never get called. > > GLsizeiptr length = (exec->vtx.buffer_ptr - exec->vtx.buffer_map) * > sizeof(float); > > but I can not see buffer_ptr != buffer_map when we hit this code, I'm > a bit lost at this point, maybe someone else might know more.
Okay maybe I'm missing something, I'm just tracing gears with softpipe and realised the map/unmap pairs occur due to the Material calls but they don't actually seem to modify the VBOs. Dave. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
