On Sun, Sep 04, 2016 at 06:50:46PM +0300, Giulio Camuffo wrote:
> If the transform on a view is only a translation we can trivially
> set the opaque region for it so to optimize the rendering.
Makes sense.
Reviewed-by: Jonas Ådahl <jad...@gmail.com>
> ---
> libweston/compositor.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/libweston/compositor.c b/libweston/compositor.c
> index 47907bb..8c3872d 100644
> --- a/libweston/compositor.c
> +++ b/libweston/compositor.c
> @@ -1192,6 +1192,15 @@ weston_view_update_transform_enable(struct weston_view
> *view)
> return -1;
> }
>
> + if (view->alpha == 1.0 &&
> + matrix->type == WESTON_MATRIX_TRANSFORM_TRANSLATE) {
> + pixman_region32_copy(&view->transform.opaque,
> + &view->surface->opaque);
> + pixman_region32_translate(&view->transform.opaque,
> + matrix->d[12],
> + matrix->d[13]);
> + }
> +
> pixman_region32_init_rect(&surfregion, 0, 0,
> view->surface->width, view->surface->height);
> if (view->geometry.scissor_enabled)
> --
> 2.9.3
>
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