Add reserved parameter to xglEnumerateLayers for layer usage
This parameter can be used by layer for getting GPA and gpu info queries.
Also add xglEnumerateLayers() to Basic layer, to show example of only
supporting a particular GPU.
diff --git a/tests/init.cpp b/tests/init.cpp
index edab764..a4b5842 100644
--- a/tests/init.cpp
+++ b/tests/init.cpp
@@ -129,7 +129,7 @@
for (int i = 0; i < 16; i++)
layers[i] = &layer_buf[i][0];
- err = xglEnumerateLayers(objs[0], 16, 256, (XGL_CHAR * const *) layers, &layer_count);
+ err = xglEnumerateLayers(objs[0], 16, 256, (XGL_CHAR * const *) layers, &layer_count, NULL);
ASSERT_XGL_SUCCESS(err);
for (int i = 0; i < layer_count; i++) {
printf("Enumerated layers: %s ", layers[i]);