Fix incorrect assert in Osd::DrawContext
Fix incorrect assert in Osd::DrawContext

c64kernal/OpenSubdiv,jcowles/OpenSubdiv,takahito-tejima/OpenSubdiv,c64kernal/OpenSubdiv,c64kernal/OpenSubdiv,shengfuintel/OpenSubdiv,poljere/OpenSubdiv,jcowles/OpenSubdiv,nyotis/OpenSubdiv,anshuarya/OpenSubdiv,shengfuintel/OpenSubdiv,xldeveloper/OpenSubdiv,poljere/OpenSubdiv,takahito-tejima/OpenSubdiv,lookup1980/OpenSubdiv,poljere/OpenSubdiv,jcowles/OpenSubdiv,xldeveloper/OpenSubdiv,lookup1980/OpenSubdiv,anshuarya/OpenSubdiv,shengfuintel/OpenSubdiv,takahito-tejima/OpenSubdiv,anshuarya/OpenSubdiv,nyotis/OpenSubdiv,lookup1980/OpenSubdiv,xldeveloper/OpenSubdiv,nyotis/OpenSubdiv