demos: check return value from vkQueueWaitSemaphore

diff --git a/demos/cube.c b/demos/cube.c
index 12de7f5..8a2b223 100644 (file)
--- a/demos/cube.c
+++ b/demos/cube.c
@@ -622,7 +622,8 @@ static void demo_draw(struct demo *demo)
     // that the image won't be rendered to until the presentation
     // engine has fully released ownership to the application, and it is
     // okay to render to the image.
-    vkQueueWaitSemaphore(demo->queue, presentCompleteSemaphore);
+    err = vkQueueWaitSemaphore(demo->queue, presentCompleteSemaphore);
+    assert(!err);
 
 // FIXME/TODO: DEAL WITH VK_IMAGE_LAYOUT_PRESENT_SOURCE_KHR
     err = vkQueueSubmit(demo->queue, 1, &demo->buffers[demo->current_buffer].cmd,

diff --git a/demos/tri.c b/demos/tri.c
index ef9ff42..a749f42 100644 (file)
--- a/demos/tri.c
+++ b/demos/tri.c
@@ -441,7 +441,8 @@ static void demo_draw(struct demo *demo)
     // that the image won't be rendered to until the presentation
     // engine has fully released ownership to the application, and it is
     // okay to render to the image.
-    vkQueueWaitSemaphore(demo->queue, presentCompleteSemaphore);
+    err = vkQueueWaitSemaphore(demo->queue, presentCompleteSemaphore);
+    assert(!err);
 
 // FIXME/TODO: DEAL WITH VK_IMAGE_LAYOUT_PRESENT_SOURCE_KHR
     demo_draw_build_cmd(demo);