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fbo: allow the fbo to be used with our own texture

This commit is contained in:
Mathieu Virbel 2011-01-12 23:04:48 +01:00
parent ab08219398
commit 150b5bc952
1 changed files with 7 additions and 5 deletions
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12
kivy/graphics/fbo.pyx
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@ -103,6 +103,8 @@ cdef class Fbo(RenderContext):
and will be automatically restored when the framebuffer released. and will be automatically restored when the framebuffer released.
`with_depthbuffer`: bool, default to True `with_depthbuffer`: bool, default to True
If True, the framebuffer will be allocated with a Z buffer. If True, the framebuffer will be allocated with a Z buffer.
`texture`: :class:`~kivy.graphics.texture.Texture`, default to None
If None, a default texture will be created.
''' '''
def __init__(self, *args, **kwargs): def __init__(self, *args, **kwargs):
RenderContext.__init__(self, *args, **kwargs) RenderContext.__init__(self, *args, **kwargs)
@ -119,15 +121,14 @@ cdef class Fbo(RenderContext):
self._depthbuffer_attached = int(kwargs.get('with_depthbuffer')) self._depthbuffer_attached = int(kwargs.get('with_depthbuffer'))
self._push_viewport = int(kwargs.get('push_viewport')) self._push_viewport = int(kwargs.get('push_viewport'))
self._is_bound = 0 self._is_bound = 0
self._texture = None self._texture = kwargs.get('texture', None)
self.create_fbo() self.create_fbo()
cdef delete_fbo(self): cdef delete_fbo(self):
# care on this case, if the deletion happen in another thread than main # care on this case, if the deletion happen in another thread than main
# thread, we are lost :) # thread, we are lost :)
if self._texture: self._texture = None
self._texture = None
self._depthbuffer_attached = 0 self._depthbuffer_attached = 0
if self._buffer_id != -1: if self._buffer_id != -1:
glDeleteFramebuffers(1, &self._buffer_id) glDeleteFramebuffers(1, &self._buffer_id)
@ -141,7 +142,8 @@ cdef class Fbo(RenderContext):
cdef int status cdef int status
# create texture # create texture
self._texture = Texture.create(size=(self._width, self._height)) if self._texture is None:
self._texture = Texture.create(size=(self._width, self._height))
# create framebuffer # create framebuffer
glGenFramebuffers(1, &f_id) glGenFramebuffers(1, &f_id)
@ -161,7 +163,7 @@ cdef class Fbo(RenderContext):
# attach the framebuffer to our texture # attach the framebuffer to our texture
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D, self._texture.id, 0) self._texture._target, self._texture._id, 0)
# check the status of the framebuffer # check the status of the framebuffer
status = glCheckFramebufferStatus(GL_FRAMEBUFFER) status = glCheckFramebufferStatus(GL_FRAMEBUFFER)