vulkan/bvh: Add some debug helpers

Reviewed-by: Natalie Vock <natalie.vock@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36965>

src/vulkan/runtime/bvh/meson.build

@@ -48,6 +48,7 @@ vk_bvh_includes = files(
   'vk_build_helpers.h',
   'vk_build_interface.h',
   'vk_bvh.h',
+  'vk_debug.h',
 )
 
 vk_glsl_shader_extensions = [

src/vulkan/runtime/bvh/vk_debug.h

@@ -0,0 +1,19 @@
+
+#ifndef BVH_VK_DEBUG_H
+#define BVH_VK_DEBUG_H
+
+#ifndef NDEBUG
+
+#extension GL_EXT_debug_printf : enable
+
+#define printf debugPrintfEXT
+#define assert(expr, message) do { if (!(expr)) printf(message); } while (false)
+
+#else
+
+#define printf
+#define assert(expr, message)
+
+#endif
+
+#endif