[PATCH xf86-video-ati 2/2] Add support for ScreenPtr::SyncSharedPixmap

[Alexander.Deucher@xxxxxxx (Deucher, Alexander)]

> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Michel Dänzer
> Sent: Wednesday, August 31, 2016 4:56 AM
> To: amd-gfx at lists.freedesktop.org
> Subject: [PATCH xf86-video-ati 2/2] Add support for
> ScreenPtr::SyncSharedPixmap
> 
> From: Michel Dänzer <michel.daenzer at amd.com>
> 
> This allows deferring shared pixmap updates between different drivers.
> 
> Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>

For the series:
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
> 
> This change requires a corresponding xserver change adding the
> SyncSharedPixmap field. I'll only push it once the xserver change has
> landed.
> 
>  src/radeon_kms.c | 43
> ++++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 42 insertions(+), 1 deletion(-)
> 
> diff --git a/src/radeon_kms.c b/src/radeon_kms.c
> index 0c8996d..f43c30f 100644
> --- a/src/radeon_kms.c
> +++ b/src/radeon_kms.c
> @@ -485,6 +485,35 @@
> radeon_sync_shared_pixmap(PixmapDirtyUpdatePtr dirty)
>      }
>  }
> 
> +
> +#if HAS_SYNC_SHARED_PIXMAP
> +
> +static Bool
> +master_has_sync_shared_pixmap(ScrnInfoPtr scrn, PixmapDirtyUpdatePtr
> dirty)
> +{
> +    ScreenPtr master_screen = dirty->src->master_pixmap-
> >drawable.pScreen;
> +
> +    return master_screen->SyncSharedPixmap != NULL;
> +}
> +
> +static Bool
> +slave_has_sync_shared_pixmap(ScrnInfoPtr scrn, PixmapDirtyUpdatePtr
> dirty)
> +{
> +    ScreenPtr slave_screen = dirty->slave_dst->drawable.pScreen;
> +
> +    return slave_screen->SyncSharedPixmap != NULL;
> +}
> +
> +static void
> +call_sync_shared_pixmap(PixmapDirtyUpdatePtr dirty)
> +{
> +    ScreenPtr master_screen = dirty->src->master_pixmap-
> >drawable.pScreen;
> +
> +    master_screen->SyncSharedPixmap(dirty);
> +}
> +
> +#else /* !HAS_SYNC_SHARED_PIXMAP */
> +
>  static Bool
>  master_has_sync_shared_pixmap(ScrnInfoPtr scrn, PixmapDirtyUpdatePtr
> dirty)
>  {
> @@ -501,6 +530,15 @@ slave_has_sync_shared_pixmap(ScrnInfoPtr scrn,
> PixmapDirtyUpdatePtr dirty)
>      return slave_scrn->driverName == scrn->driverName;
>  }
> 
> +static void
> +call_sync_shared_pixmap(PixmapDirtyUpdatePtr dirty)
> +{
> +    radeon_sync_shared_pixmap(dirty);
> +}
> +
> +#endif /* HAS_SYNC_SHARED_PIXMAPS */
> +
> +
>  void
>  radeon_prime_scanout_update_handler(xf86CrtcPtr crtc, uint32_t frame,
> uint64_t usec,
>  				    void *event_data)
> @@ -518,7 +556,7 @@ radeon_prime_scanout_update_handler(xf86CrtcPtr
> crtc, uint32_t frame, uint64_t u
>  	    continue;
> 
>  	if (master_has_sync_shared_pixmap(scrn, dirty))
> -	    radeon_sync_shared_pixmap(dirty);
> +	    call_sync_shared_pixmap(dirty);
> 
>  	region = dirty_region(dirty);
>  	redisplay_dirty(dirty, region);
> @@ -2128,6 +2166,9 @@ Bool
> RADEONScreenInit_KMS(SCREEN_INIT_ARGS_DECL)
>  #ifdef RADEON_PIXMAP_SHARING
>      pScreen->StartPixmapTracking = PixmapStartDirtyTracking;
>      pScreen->StopPixmapTracking = PixmapStopDirtyTracking;
> +#if HAS_SYNC_SHARED_PIXMAP
> +    pScreen->SyncSharedPixmap = radeon_sync_shared_pixmap;
> +#endif
>  #endif
> 
>     if (!xf86CrtcScreenInit (pScreen))
> --
> 2.9.3
> 
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