Add vdpau.h stub

Author: TApplencourt

backends/cuda/include/vdpau/vdpau.h

@@ -0,0 +1,15 @@
+/* Stub for VDPAU types used by CUDA interop headers. */
+#ifndef THAPI_VDPAU_STUB_H
+#define THAPI_VDPAU_STUB_H
+
+#include <stdint.h>
+
+typedef int32_t VdpStatus;
+typedef uint32_t VdpFuncId;
+typedef uint32_t VdpDevice;
+typedef VdpStatus VdpGetProcAddress(VdpDevice device, VdpFuncId function_id,
+                                    void **function_pointer);
+typedef uint32_t VdpVideoSurface;
+typedef uint32_t VdpOutputSurface;
+
+#endif