etnaviv: implement resource_changed to invalidate internal resources derived from...

Implement the resource_changed pipe callback to invalidate internal
resources derived from imported buffers. This is needed to update the
texture for re-imported renderables.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

diff --git a/src/gallium/drivers/etnaviv/etnaviv_resource.c b/src/gallium/drivers/etnaviv/etnaviv_resource.c
index a8858c5a49e19ac1926598427a2bf0142c06d7a7..20ec8f85855a49550235f80cbd695c8d47a00fc1 100644 (file)
--- a/src/gallium/drivers/etnaviv/etnaviv_resource.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_resource.c
@@ -274,6 +274,18 @@ etna_resource_create(struct pipe_screen *pscreen,
    return etna_resource_alloc(pscreen, layout, templat);
 }
 
+static void
+etna_resource_changed(struct pipe_screen *pscreen, struct pipe_resource *prsc)
+{
+   struct etna_resource *res = etna_resource(prsc);
+
+   /* Make sure texture is older than the imported renderable buffer,
+    * so etna_update_sampler_source will copy the pixel data again.
+    */
+   if (res->texture)
+      etna_resource(res->texture)->seqno = res->seqno - 1;
+}
+
 static void
 etna_resource_destroy(struct pipe_screen *pscreen, struct pipe_resource *prsc)
 {
@@ -436,5 +448,6 @@ etna_resource_screen_init(struct pipe_screen *pscreen)
    pscreen->resource_create = etna_resource_create;
    pscreen->resource_from_handle = etna_resource_from_handle;
    pscreen->resource_get_handle = etna_resource_get_handle;
+   pscreen->resource_changed = etna_resource_changed;
    pscreen->resource_destroy = etna_resource_destroy;
 }