def _update(self):
# We need to activate before we can add attachements
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self._handle)
# Attach any RenderBuffers or Textures
# Note that we only enable the object briefly to attach it.
# After that, the object does not need to be bound.
while self._pending_attachments:
attachment, object, level = self._pending_attachments.pop(0)
if object == 0:
gl.glFramebufferRenderbuffer(gl.GL_FRAMEBUFFER, attachment,
gl.GL_RENDERBUFFER, 0)
elif isinstance(object, RenderBuffer):
with object:
gl.glFramebufferRenderbuffer(gl.GL_FRAMEBUFFER, attachment,
gl.GL_RENDERBUFFER, object.handle)
elif isinstance(object, Texture2D):
# note that we use private variable _target from Texture
with object:
gl.glFramebufferTexture2D(gl.GL_FRAMEBUFFER, attachment,
object._target, object.handle, level)
else:
raise FrameBufferError('Invalid attachment. This should not happen.')
# Check
if True:
res = gl.glCheckFramebufferStatus(gl.GL_FRAMEBUFFER)
if res == gl.GL_FRAMEBUFFER_COMPLETE:
pass
elif res == 0:
raise FrameBufferError('Target not equal to GL_FRAMEBUFFER')
elif res == gl.GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
raise FrameBufferError('FrameBuffer attachments are incomplete.')
elif res == gl.GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
raise FrameBufferError('No valid attachments in the FrameBuffer.')
elif res == gl.GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS:
raise FrameBufferError('attachments do not have the same width and height.')
#elif res == gl.GL_FRAMEBUFFER_INCOMPLETE_FORMATS: # Not in our namespace?
# raise FrameBufferError('Internal format of attachment is not renderable.')
elif res == gl.GL_FRAMEBUFFER_UNSUPPORTED:
raise FrameBufferError('Combination of internal formats used by attachments is not supported.')
def _deactivate(self):
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, 0)
def _deactivate(self):
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, 0)
def _activate(self):
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self._handle)
def _activate(self):
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self._handle)
