1 files changed, 55 insertions, 0 deletions
diff --git a/src/VBox/GuestHost/OpenGL/include/cr_dmx.h b/src/VBox/GuestHost/OpenGL/include/cr_dmx.h
new file mode 100644
index 00000000..4ae6456d
--- /dev/null
+++ b/src/VBox/GuestHost/OpenGL/include/cr_dmx.h
@@ -0,0 +1,55 @@
+/**
+ * DMX utility functions.
+ */
+
+#ifndef CR_DMX_H
+#define CR_DMX_H
+
+#include <X11/Xlib.h>
+#include <X11/extensions/dmxext.h>
+
+#include "cr_spu.h"
+#include "state/cr_statetypes.h"
+
+
+typedef struct {
+    GLXDrawable xwin;     /**< backend server's X window */
+    GLXDrawable xsubwin;  /**< child of xwin, clipped to screen bounds */
+    Display *dpy;         /**< DMX back-end server display */
+    CRrecti visrect;      /**< visible rect, in front-end screen coords */
+} CRDMXBackendWindowInfo;
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+extern int
+crDMXSupported(Display *dpy);
+
+extern CRDMXBackendWindowInfo *
+crDMXAllocBackendWindowInfo(unsigned int numBackendWindows);
+
+extern void
+crDMXFreeBackendWindowInfo(unsigned int numBackendWindows,
+													 CRDMXBackendWindowInfo *backendWindows);
+
+/* Given the DMX front-end display "dpy" and window "xwin", update the
+ * backend window information in "backendWindows".  If new subwindows are
+ * needed, and an OpenGL interface pointer is provided, use that interface
+ * and the subwindowVisBits to create new subwindows.
+ */
+extern GLboolean
+crDMXGetBackendWindowInfo(Display *dpy, GLXDrawable xwin, 
+													unsigned int numBackendWindows,
+													CRDMXBackendWindowInfo *backendWindows,
+													const crOpenGLInterface *openGlInterface,
+													GLint subwindowVisBits);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CR_DLM_H */