glbase.py 文件源码

def update(self, name, ub):
        PyBuffer_FromMemory = ctypes.pythonapi.PyBuffer_FromMemory
        ubo = self.UBs[name].ubo
        #print "using ubo handle %s" % ubo
        gl.glBindBuffer(gl.GL_UNIFORM_BUFFER, ubo)
        vp = gl.glMapBuffer(gl.GL_UNIFORM_BUFFER, gl.GL_WRITE_ONLY)
        #buffer = PyBuffer_FromMemory(
        #    ctypes.c_void_p(vp), vbo.size
        #)

        to_p = ctypes.c_void_p(vp)
        from_p = ctypes.c_void_p(ub.listy.ctypes.data)
        #print to_p, from_p
        ctypes.memmove(to_p,
                       from_p,
                       ub.record_byte_size*len(ub.listy))
        gl.glUnmapBuffer(gl.GL_UNIFORM_BUFFER)