1 files changed, 59 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/globals.cpp b/intern/cycles/kernel/osl/globals.cpp
new file mode 100644
index 00000000000..92b91182178
--- /dev/null
+++ b/intern/cycles/kernel/osl/globals.cpp
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
+
+#include <OSL/oslexec.h>
+
+#include "kernel/device/cpu/compat.h"
+#include "kernel/device/cpu/globals.h"
+
+#include "kernel/types.h"
+
+#include "kernel/osl/globals.h"
+#include "kernel/osl/services.h"
+
+CCL_NAMESPACE_BEGIN
+
+void OSLGlobals::thread_init(KernelGlobalsCPU *kg, OSLGlobals *osl_globals)
+{
+  /* no osl used? */
+  if (!osl_globals->use) {
+    kg->osl = NULL;
+    return;
+  }
+
+  /* Per thread kernel data init. */
+  kg->osl = osl_globals;
+
+  OSL::ShadingSystem *ss = kg->osl->ss;
+  OSLThreadData *tdata = new OSLThreadData();
+
+  memset((void *)&tdata->globals, 0, sizeof(OSL::ShaderGlobals));
+  tdata->globals.tracedata = &tdata->tracedata;
+  tdata->osl_thread_info = ss->create_thread_info();
+  tdata->context = ss->get_context(tdata->osl_thread_info);
+
+  tdata->oiio_thread_info = osl_globals->ts->get_perthread_info();
+
+  kg->osl_ss = (OSLShadingSystem *)ss;
+  kg->osl_tdata = tdata;
+}
+
+void OSLGlobals::thread_free(KernelGlobalsCPU *kg)
+{
+  if (!kg->osl)
+    return;
+
+  OSL::ShadingSystem *ss = (OSL::ShadingSystem *)kg->osl_ss;
+  OSLThreadData *tdata = kg->osl_tdata;
+  ss->release_context(tdata->context);
+
+  ss->destroy_thread_info(tdata->osl_thread_info);
+
+  delete tdata;
+
+  kg->osl = NULL;
+  kg->osl_ss = NULL;
+  kg->osl_tdata = NULL;
+}
+
+CCL_NAMESPACE_END