Clarify doc

1 files changed, 42 insertions, 0 deletions

diff --git a/src/llr/light.c b/src/llr/light.c
new file mode 100644
index 0000000..168f16a
--- /dev/null
+++ b/src/llr/light.c
@@ -0,0 +1,42 @@
+#include "../scene/light_impl.h"
+
+#include "../scene/node_impl.h"
+#include "../scene/scene_memory.h"
+
+#include <error.h>
+
+static void make_environment_light(
+    Light* light, const EnvironmentLightDesc* desc) {
+  assert(light);
+  assert(desc);
+  light->type                        = EnvironmentLightType;
+  light->environment.environment_map = desc->environment_map;
+}
+
+Light* gfx_make_light(const LightDesc* desc) {
+  assert(desc);
+
+  Light* light = mem_alloc_light();
+
+  switch (desc->type) {
+  case EnvironmentLightType:
+    make_environment_light(light, &desc->light.environment);
+    break;
+  default:
+    log_error("Unhandled light type");
+    gfx_destroy_light(&light);
+    return 0;
+  }
+
+  return light;
+}
+
+void gfx_destroy_light(Light** light) {
+  assert(light);
+  if (*light) {
+    if ((*light)->parent.val) {
+      gfx_del_node((*light)->parent);
+    }
+    mem_free_light(light);
+  }
+}