Signed-off-by: Lionel Landwerlin <[email protected]>
---
src/egl/drivers/dri2/platform_drm.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/egl/drivers/dri2/platform_drm.c
b/src/egl/drivers/dri2/platform_drm.c
index 70bd7d4..f6b9c3a 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -418,6 +418,14 @@ dri2_drm_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp,
_EGLSurface *draw)
for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++)
if (dri2_surf->color_buffers[i].age > 0)
dri2_surf->color_buffers[i].age++;
+
+ /* Make sure we have a back buffer in case we're swapping without
+ * ever rendering. */
+ if (get_back_bo(dri2_surf) < 0) {
+ _eglError(EGL_BAD_ALLOC, "dri2_swap_buffers");
+ return EGL_FALSE;
+ }
+
dri2_surf->current = dri2_surf->back;
dri2_surf->current->age = 1;
dri2_surf->back = NULL;
--
2.1.1
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