egl: Implement __DRI_BACKGROUND_CALLABLE

v2: (Timothy Arceri) use C99 initializers.

Acked-by: Timothy Arceri <[email protected]>
Acked-by: Marek Olšák <[email protected]>
Tested-by: Dieter Nützel <[email protected]>
Tested-by: Mike Lothian <[email protected]>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 4bab6f1c5e2..2cab7d00c1f 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -83,6 +83,21 @@
 #define DRM_FORMAT_GR1616        fourcc_code('G', 'R', '3', '2') /* [31:0] R:G 16:16 little endian */
 #endif
 
+static void
+dri_set_background_context(void *loaderPrivate)
+{
+   _EGLContext *ctx = _eglGetCurrentContext();
+   _EGLThreadInfo *t = _eglGetCurrentThread();
+
+   _eglBindContextToThread(ctx, t);
+}
+
+const __DRIbackgroundCallableExtension background_callable_extension = {
+   .base = { __DRI_BACKGROUND_CALLABLE, 1 },
+
+   .setBackgroundContext = dri_set_background_context,
+};
+
 const __DRIuseInvalidateExtension use_invalidate = {
    .base = { __DRI_USE_INVALIDATE, 1 }
 };