[Piglit] [PATCH] fbo-clear-formats: Do one of the 4 clears unscissored.

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

Marek

On Sat, Oct 15, 2016 at 1:36 AM, Eric Anholt <eric at anholt.net> wrote:
> I was surprised to find through DEQP that 565 clearing was broken on
> vc4, but that was because fbo-clear-formats never hit the hardware
> clear path.  This gives us a little exposure for that path (enough to
> catch the bug) without changing our clear colors have unique values in
> each channel.
> ---
>  tests/fbo/fbo-clear-formats.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/tests/fbo/fbo-clear-formats.c b/tests/fbo/fbo-clear-formats.c
> index 4c9a391fe87e..8289182d6628 100644
> --- a/tests/fbo/fbo-clear-formats.c
> +++ b/tests/fbo/fbo-clear-formats.c
> @@ -102,12 +102,14 @@ do_rgba_clear(GLenum format, GLuint tex, int level, int size)
>                 return true;
>         }
>
> -       glEnable(GL_SCISSOR_TEST);
> -
> -       glScissor(0, 0, size / 2, size / 2);
> +       /* Do the first clear unscissored, to give a bit of exposure
> +        * to hardware fast-clearing paths on tiled renderers that
> +        * require unscissored clears.
> +        */
>         glClearColor(red[0], red[1], red[2], red[3]);
>         glClear(GL_COLOR_BUFFER_BIT);
>
> +       glEnable(GL_SCISSOR_TEST);
>         glScissor(size / 2, 0, size / 2, size / 2);
>         glClearColor(green[0], green[1], green[2], green[3]);
>         glClear(GL_COLOR_BUFFER_BIT);
> --
> 2.9.3
>
> _______________________________________________
> Piglit mailing list
> Piglit at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/piglit