def __init__(self, type, source):
self.shader = gl2.glCreateShader(type)
if self.shader == 0:
raise Exception("unable to create shader")
source_ptr = ctypes.c_char_p(source)
source_ptr = ctypes.cast(ctypes.pointer(source_ptr), ctypes.POINTER(ctypes.POINTER(ctypes.c_char)))
gl2.glShaderSource(self.shader, 1, source_ptr, None)
gl2.glCompileShader(self.shader)
compiled = ctypes.c_int()
gl2.glGetShaderiv(self.shader, gl2.GL_COMPILE_STATUS, ctypes.byref(compiled))
if not compiled:
info_len = ctypes.c_int()
gl2.glGetShaderiv(self.shader, gl2.GL_INFO_LOG_LENGTH, ctypes.byref(info_len))
if info_len.value > 0:
info = ctypes.create_string_buffer(info_len.value)
gl2.glGetShaderInfoLog(self.shader, info_len, None, info)
gl2.glDeleteShader(self.shader)
raise Exception(info.value)
def __del__(self): gl2.glDeleteShader(self.shader)
