Keith Whitwell [2011-03-21 18:43]: > On Mon, 2011-03-21 at 19:28 +0100, Tilman Sauerbeck wrote: > > Signed-off-by: Tilman Sauerbeck <til...@code-monkey.de> > > --- > > > > update_samplers() showed up in a profile of Heroes of Newerth; > > this patch pushes it down the profile by ~3%. > > > > Does this seem plausible? > > > > src/mesa/state_tracker/st_atom_sampler.c | 5 +++-- > > 1 files changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/src/mesa/state_tracker/st_atom_sampler.c > > b/src/mesa/state_tracker/st_atom_sampler.c > > index 474cbd5..4374ac1 100644 > > --- a/src/mesa/state_tracker/st_atom_sampler.c > > +++ b/src/mesa/state_tracker/st_atom_sampler.c > > @@ -129,12 +129,13 @@ update_samplers(struct st_context *st) > > > > st->state.num_samplers = 0; > > > > + memset(st->state.samplers, 0, st->ctx->Const.MaxTextureImageUnits * > > + sizeof(struct pipe_sampler_state)); > > + > > At a glance, could the memset be moved up another couple of lines and > changed to: > > memset(st->state.samplers, 0, st->state.num_samplers * sizeof(struct > pipe_sampler_state));
I wondered about this, too. Consider the case where the sampler state is undefined when update_samplers() is called though -- then we might end up with partially uninitialized samplers, no? Regards, Tilman -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?
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