[Mesa-dev] [PATCH 08/10] i965: Rename pixel_scoreboard_clear to last_render_target for clarity.
eric at anholt.net
Tue Oct 11 18:04:47 PDT 2011
On Mon, 10 Oct 2011 16:31:51 -0700, Kenneth Graunke <kenneth at whitecape.org> wrote:
> Finding this bit in the documentation proved challenging. It wasn't in
> the SEND instruction's message descriptor section, nor the data port
> message descriptor section. It turns out to be part of the Render
> Target Write message's control bits, and in the documentation is named
> "Last Render Target Select".
> Shaders that use Multiple Render Targets should set this bit on the last
> RT write, but not on any prior ones.
> The GPU does update the Pixel Scoreboard appropriately, but doesn't
> document this bit as directly causing a scoreboard clear.
> Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Back in my day, the docs called it the pixel scoreboard clear bit.
Reviewed-by: Eric Anholt <eric at anholt.net>
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