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. Dave. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
