Add Chromium-only Blender WebEngine parity work

blender-5.2.0/intern/cycles/app/opengl/window.h

@@ -0,0 +1,36 @@
+/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: Apache-2.0 */
+
+#pragma once
+
+/* Functions to display a simple OpenGL window using SDL, simplified to the
+ * bare minimum we need to reduce boilerplate code in tests apps. */
+
+CCL_NAMESPACE_BEGIN
+
+using WindowInitFunc = void (*)();
+using WindowExitFunc = void (*)();
+using WindowResizeFunc = void (*)(int, int);
+using WindowDisplayFunc = void (*)();
+using WindowKeyboardFunc = void (*)(unsigned char);
+using WindowMotionFunc = void (*)(int, int, int);
+
+void window_main_loop(const char *title,
+                      const int width,
+                      const int height,
+                      WindowInitFunc initf,
+                      WindowExitFunc exitf,
+                      WindowResizeFunc resize,
+                      WindowDisplayFunc display,
+                      WindowKeyboardFunc keyboard,
+                      WindowMotionFunc motion);
+
+void window_display_info(const char *info);
+void window_display_help();
+void window_redraw();
+
+bool window_opengl_context_enable();
+void window_opengl_context_disable();
+
+CCL_NAMESPACE_END