dri3: use invalidate.

This doesn't change anything to the intel DRI3 implementation,
but enables the gallium implementation to use dri2.stamp instead
of relying on the stamp shared with the st backend.

Signed-off-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/glx/dri3_glx.c b/src/glx/dri3_glx.c
index edad014b2e8..9d2a40f9a55 100644
--- a/src/glx/dri3_glx.c
+++ b/src/glx/dri3_glx.c
@@ -1308,9 +1308,14 @@ static const __DRIimageLoaderExtension imageLoaderExtension = {
    .flushFrontBuffer    = dri3_flush_front_buffer,
 };
 
+const __DRIuseInvalidateExtension dri3UseInvalidate = {
+   .base = { __DRI_USE_INVALIDATE, 1 }
+};
+
 static const __DRIextension *loader_extensions[] = {
    &imageLoaderExtension.base,
    &systemTimeExtension.base,
+   &dri3UseInvalidate.base,
    NULL
 };
 
@@ -1384,6 +1389,8 @@ dri3_swap_buffers(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor,
          ++(*priv->stamp);
    }
 
+   (*psc->f->invalidate)(priv->driDrawable);
+
    return ret;
 }