def destroy(self):
"""Must be called when this ``RenderTexture`` is no longer needed.
Destroys the frame buffer and render buffer, and calls
:meth:`.Texture2D.destroy`.
"""
texture.Texture2D.destroy(self)
log.debug('Deleting FBO{} [{}]'.format(self.__frameBuffer,
self.__rttype))
glfbo.glDeleteFramebuffersEXT(gltypes.GLuint(self.__frameBuffer))
if self.__renderBuffer is not None:
rb = gltypes.GLuint(self.__renderBuffer)
glfbo.glDeleteRenderbuffersEXT(1, rb)
if self.__depthTexture is not None:
self.__depthTexture.destroy()
self.__frameBuffer = None
self.__renderBuffer = None
self.__depthTexture = None
self.__oldFrameBuffer = None
self.__oldRenderBuffer = None
def __init__(self, width, height, drawFunc):
tex = GL.glGenTextures(1)
GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA8, width, height, 0, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, None)
self.enabled = False
self._texID = tex
if FBO.glGenFramebuffersEXT:
buf = FBO.glGenFramebuffersEXT(1)
FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, buf)
depthbuffer = FBO.glGenRenderbuffersEXT(1)
FBO.glBindRenderbufferEXT(FBO.GL_RENDERBUFFER_EXT, depthbuffer)
FBO.glRenderbufferStorageEXT(FBO.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT, width, height)
FBO.glFramebufferRenderbufferEXT(FBO.GL_FRAMEBUFFER_EXT, FBO.GL_DEPTH_ATTACHMENT_EXT, FBO.GL_RENDERBUFFER_EXT, depthbuffer)
FBO.glFramebufferTexture2DEXT(FBO.GL_FRAMEBUFFER_EXT, FBO.GL_COLOR_ATTACHMENT0_EXT, GL.GL_TEXTURE_2D, tex, 0)
status = FBO.glCheckFramebufferStatusEXT(FBO.GL_FRAMEBUFFER_EXT)
if status != FBO.GL_FRAMEBUFFER_COMPLETE_EXT:
print "glCheckFramebufferStatusEXT", status
self.enabled = False
return
FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, buf)
GL.glPushAttrib(GL.GL_VIEWPORT_BIT)
GL.glViewport(0, 0, width, height)
drawFunc()
GL.glPopAttrib()
FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, 0)
FBO.glDeleteFramebuffersEXT(1, [buf])
FBO.glDeleteRenderbuffersEXT(1, [depthbuffer])
self.enabled = True
def __init__(self, width, height, drawFunc):
tex = GL.glGenTextures(1)
GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA8, width, height, 0, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, None)
self.enabled = False
self._texID = tex
if bool(FBO.glGenFramebuffersEXT):
buf = FBO.glGenFramebuffersEXT(1)
depthbuffer = FBO.glGenRenderbuffersEXT(1)
FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, buf)
FBO.glBindRenderbufferEXT(FBO.GL_RENDERBUFFER_EXT, depthbuffer)
FBO.glRenderbufferStorageEXT(FBO.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT, width, height)
FBO.glFramebufferRenderbufferEXT(FBO.GL_FRAMEBUFFER_EXT, FBO.GL_DEPTH_ATTACHMENT_EXT, FBO.GL_RENDERBUFFER_EXT, depthbuffer)
FBO.glFramebufferTexture2DEXT(FBO.GL_FRAMEBUFFER_EXT, FBO.GL_COLOR_ATTACHMENT0_EXT, GL.GL_TEXTURE_2D, tex, 0)
status = FBO.glCheckFramebufferStatusEXT(FBO.GL_FRAMEBUFFER_EXT)
if status != FBO.GL_FRAMEBUFFER_COMPLETE_EXT:
print "glCheckFramebufferStatusEXT", status
self.enabled = False
return
FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, buf)
with gl.glPushAttrib(GL.GL_VIEWPORT_BIT):
GL.glViewport(0, 0, width, height)
drawFunc()
FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, 0)
FBO.glDeleteFramebuffersEXT(1, [buf])
FBO.glDeleteRenderbuffersEXT(1, [depthbuffer])
self.enabled = True
else:
GL.glReadBuffer(GL.GL_BACK)
if bool(window_pos.glWindowPos2dARB):
pixels = GL.glReadPixels(0, 0, width, height, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE)
GL.glPushAttrib(GL.GL_VIEWPORT_BIT | GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_TEST | GL.GL_STENCIL_BUFFER_BIT)
GL.glDisable(GL.GL_STENCIL_TEST)
GL.glViewport(0, 0, width, height)
GL.glScissor(0, 0, width, height)
with gl.glEnable(GL.GL_SCISSOR_TEST):
drawFunc()
GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
GL.glReadBuffer(GL.GL_BACK)
GL.glCopyTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0, 0, 0, width, height)
if bool(window_pos.glWindowPos2dARB):
window_pos.glWindowPos2dARB(0,0)
GL.glDrawPixels(width, height, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, pixels)
GL.glPopAttrib()
def __del__(self):
# if application is closed, symbol may be not available anymore
# so, prevent failure, instead of having an exception !
if not bool(glDeleteRenderbuffersEXT):
return
# XXX deletion of framebuffer failed with PyOpenGL 3.0.0
# Closed bug : http://sourceforge.net/tracker/index.php?func=detail&aid=2727274&group_id=5988&atid=105988
# So, we must test the version, and use numpy array instead.
if OpenGLversion <= (3, 0, 1) and have_numpy:
glDeleteFramebuffersEXT(1, numpy.array(self.framebuffer))
if self.with_depthbuffer:
glDeleteRenderbuffersEXT(1, numpy.array(self.depthbuffer))
else:
# XXX Should work, but not tested.
glDeleteFramebuffersEXT(1, self.framebuffer)
if self.with_depthbuffer:
glDeleteRenderbuffersEXT(1, self.depthbuffer)
def __del__(self):
# if application is closed, symbol may be not available anymore
# so, prevent failure, instead of having an exception !
if not bool(glDeleteRenderbuffersEXT):
return
# XXX deletion of framebuffer failed with PyOpenGL 3.0.0
# Closed bug : http://sourceforge.net/tracker/index.php?func=detail&aid=2727274&group_id=5988&atid=105988
# So, we must test the version, and use numpy array instead.
if OpenGLversion <= (3, 0, 1) and have_numpy:
glDeleteFramebuffersEXT(1, numpy.array(self.framebuffer))
if self.with_depthbuffer:
glDeleteRenderbuffersEXT(1, numpy.array(self.depthbuffer))
else:
# XXX Should work, but not tested.
glDeleteFramebuffersEXT(1, self.framebuffer)
if self.with_depthbuffer:
glDeleteRenderbuffersEXT(1, self.depthbuffer)
