def save(display_func, filename="screenshot.png"):
"""
"""
try:
import OpenGL.GL.EXT.framebuffer_object as fbo
except ImportError:
print 'You do not have the framebuffer extension on your video card'
print 'Cannot save figure'
return
x, y, w, h = gl.glGetIntegerv(gl.GL_VIEWPORT)
# Setup framebuffer
framebuffer = fbo.glGenFramebuffersEXT(1)
fbo.glBindFramebufferEXT(fbo.GL_FRAMEBUFFER_EXT, framebuffer)
# Setup depthbuffer
depthbuffer = fbo.glGenRenderbuffersEXT(1)
fbo.glBindRenderbufferEXT(fbo.GL_RENDERBUFFER_EXT, depthbuffer)
fbo.glRenderbufferStorageEXT(fbo.GL_RENDERBUFFER_EXT,
gl.GL_DEPTH_COMPONENT, w, h)
# Create texture to render to
data = np.zeros((w, h, 4), dtype=np.ubyte)
texture = gl.glGenTextures(1)
gl.glBindTexture(gl.GL_TEXTURE_2D, texture)
gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_LINEAR)
gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MIN_FILTER,
gl.GL_LINEAR)
gl.glTexImage2D(gl.GL_TEXTURE_2D, 0, gl.GL_RGBA, w, h, 0, gl.GL_RGBA,
gl.GL_UNSIGNED_BYTE, data)
fbo.glFramebufferTexture2DEXT(gl.GL_FRAMEBUFFER_EXT,
gl.GL_COLOR_ATTACHMENT0_EXT,
gl.GL_TEXTURE_2D, texture, 0)
fbo.glFramebufferRenderbufferEXT(gl.GL_FRAMEBUFFER_EXT,
gl.GL_DEPTH_ATTACHMENT_EXT,
gl.GL_RENDERBUFFER_EXT, depthbuffer)
status = fbo.glCheckFramebufferStatusEXT(fbo.GL_FRAMEBUFFER_EXT)
if status != fbo.GL_FRAMEBUFFER_COMPLETE_EXT:
raise (RuntimeError, 'Error in framebuffer activation')
display_func()
glut.glutSwapBuffers()
data = gl.glReadPixels(x, y, w, h, gl.GL_RGBA, gl.GL_UNSIGNED_BYTE)
from PIL import Image
image = Image.fromstring('RGBA', (w, h), data)
image = image.transpose(Image.FLIP_TOP_BOTTOM)
image.save(filename)
# Cleanup
fbo.glBindRenderbufferEXT(fbo.GL_RENDERBUFFER_EXT, 0)
fbo.glBindFramebufferEXT(fbo.GL_FRAMEBUFFER_EXT, 0)
gl.glDeleteTextures(texture)
fbo.glDeleteFramebuffersEXT([
framebuffer,
])
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 _setupFrameBuffer(self):
# Setup framebuffer
self.frameBuffer = FB.glGenFramebuffersEXT(1)
FB.glBindFramebufferEXT(FB.GL_FRAMEBUFFER_EXT, self.frameBuffer)
# Setup depthbuffer
self.depthBuffer = FB.glGenRenderbuffersEXT(1)
FB.glBindRenderbufferEXT (FB.GL_RENDERBUFFER_EXT,self.depthBuffer)
FB.glRenderbufferStorageEXT (FB.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT, int(self.size[0]), int(self.size[1]))
# Create texture to render to
self.frameTexture = c_uint(0)
GL.glGenTextures (1, self.frameTexture)
GL.glBindTexture (GL.GL_TEXTURE_2D, self.frameTexture)
GL.glTexParameteri (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR)
GL.glTexParameteri (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR)
GL.glTexImage2D (GL.GL_TEXTURE_2D, 0, GL.GL_RGBA32F_ARB, int(self.size[0]), int(self.size[1]), 0,
GL.GL_RGBA, GL.GL_FLOAT, None)
#attach texture to the frame buffer
FB.glFramebufferTexture2DEXT (FB.GL_FRAMEBUFFER_EXT, GL.GL_COLOR_ATTACHMENT0_EXT,
GL.GL_TEXTURE_2D, self.frameTexture, 0)
FB.glFramebufferRenderbufferEXT(FB.GL_FRAMEBUFFER_EXT, GL.GL_DEPTH_ATTACHMENT_EXT,
FB.GL_RENDERBUFFER_EXT, self.depthBuffer)
status = FB.glCheckFramebufferStatusEXT (FB.GL_FRAMEBUFFER_EXT)
if status != FB.GL_FRAMEBUFFER_COMPLETE_EXT:
logging.warning("Error in framebuffer activation")
return
GL.glDisable(GL.GL_TEXTURE_2D)
def __init__(self, name, rttype='cds', **kwargs):
"""Create a ``RenderTexture``. All keyword arguments are passed through to the
:meth:`.Texture2D.__init__` method.
:arg name: Unique name for this texture
:arg rttype: ``RenderTexture`` configuration. If provided, must be
passed as a keyword argument. Valid values are:
- ``'c'``: Only a colour attachment is configured
- ``'cd'``: Colour and depth attachments are
configured
- ``'cds'`` : Colour, depth, and stencil attachments
are configured. This is the default.
.. note:: A rendering target must have been set for the GL context
before a frame buffer can be created ... in other words,
call ``context.SetCurrent`` before creating a
``RenderTexture``.
"""
if rttype not in ('c', 'cd', 'cds'):
raise ValueError('Invalid rttype: {}'.format(rttype))
texture2d.Texture2D.__init__(self,
name,
ndim=2,
nvals=4,
dtype=np.uint8,
**kwargs)
self.__frameBuffer = glfbo.glGenFramebuffersEXT(1)
self.__rttype = rttype
self.__renderBuffer = None
self.__depthTexture = None
self.__oldSize = None
self.__oldProjMat = None
self.__oldMVMat = None
self.__oldFrameBuffer = None
self.__oldRenderBuffer = None
# Use a single renderbuffer as
# the depth+stencil attachment
if rttype == 'cds':
self.__renderBuffer = glfbo.glGenRenderbuffersEXT(1)
# Or use a texture as the depth
# attachment (with no stencil attachment)
elif rttype == 'cd':
self.__depthTexture = texture2d.DepthTexture('{}_depth'.format(
self.name))
# We also need a shader program in
# case the creator is intending to
# use the depth information in draws.
self.__initShader()
log.debug('Created fbo %s [%s]', self.__frameBuffer, rttype)
def save(display_func, filename="screenshot.png"):
""" """
try:
import OpenGL.GL.EXT.framebuffer_object as fbo
except ImportError:
print 'You do not have the framebuffer extension on your video card'
print 'Cannot save figure'
return
x,y,w,h = gl.glGetIntegerv(gl.GL_VIEWPORT)
# Setup framebuffer
framebuffer = fbo.glGenFramebuffersEXT(1)
fbo.glBindFramebufferEXT( fbo.GL_FRAMEBUFFER_EXT, framebuffer)
# Setup depthbuffer
depthbuffer = fbo.glGenRenderbuffersEXT( 1 )
fbo.glBindRenderbufferEXT( fbo.GL_RENDERBUFFER_EXT, depthbuffer )
fbo.glRenderbufferStorageEXT( fbo.GL_RENDERBUFFER_EXT, gl.GL_DEPTH_COMPONENT, w, h)
# Create texture to render to
data = np.zeros((w,h,4), dtype=np.ubyte)
texture = gl.glGenTextures(1)
gl.glBindTexture( gl.GL_TEXTURE_2D, texture)
gl.glTexParameteri( gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER, gl.GL_LINEAR)
gl.glTexParameteri( gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MIN_FILTER, gl.GL_LINEAR)
gl.glTexImage2D( gl.GL_TEXTURE_2D, 0, gl.GL_RGBA, w, h, 0,
gl.GL_RGBA, gl.GL_UNSIGNED_BYTE, data)
fbo.glFramebufferTexture2DEXT( gl.GL_FRAMEBUFFER_EXT, gl.GL_COLOR_ATTACHMENT0_EXT,
gl.GL_TEXTURE_2D, texture, 0)
fbo.glFramebufferRenderbufferEXT( gl.GL_FRAMEBUFFER_EXT, gl.GL_DEPTH_ATTACHMENT_EXT,
gl.GL_RENDERBUFFER_EXT, depthbuffer)
status = fbo.glCheckFramebufferStatusEXT( fbo.GL_FRAMEBUFFER_EXT )
if status != fbo.GL_FRAMEBUFFER_COMPLETE_EXT:
raise(RuntimeError, 'Error in framebuffer activation')
display_func()
glut.glutSwapBuffers()
data = gl.glReadPixels (x,y,w,h, gl.GL_RGB, gl.GL_UNSIGNED_BYTE)
from PIL import Image
#from PIL.ImageCms import profileToProfile
#ADOBE_RGB_PROFILE = "AdobeRGB1998.icc"
#SRGB_PROFILE = "./sRGB.icc"
#RGB_PROFILE = "./RGB.icc"
image = Image.fromstring('RGB', (w,h), data)
#profileToProfile(image, RGB_PROFILE, ADOBE_RGB_PROFILE, inPlace=1)
image = image.transpose(Image.FLIP_TOP_BOTTOM)
image.save (filename)
# Cleanup
fbo.glBindRenderbufferEXT( fbo.GL_RENDERBUFFER_EXT, 0 )
fbo.glBindFramebufferEXT( fbo.GL_FRAMEBUFFER_EXT, 0 )
gl.glDeleteTextures( texture )
fbo.glDeleteFramebuffersEXT( [framebuffer,] )
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 main(path=None):
glutInit(sys.argv)
if sys.platform == 'darwin':
if not path:
path = dialog()
if not path:
sys.exit(0)
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE)
glutInitWindowPosition(0, 0)
glutInitWindowSize(730, 650)
win = glutCreateWindow(b'MIDI Player')
(width, height, img) = read_image('mixer.ppm')
glPixelStorei(GL_UNPACK_ALIGNMENT, 1)
rbo = c_uint(int(glGenRenderbuffersEXT(1)))
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rbo)
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, width, height)
fbo = c_uint(int(glGenFramebuffersEXT(1)))
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, fbo)
glFramebufferRenderbufferEXT(GL_READ_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_RENDERBUFFER_EXT, rbo)
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, fbo)
glClear(GL_COLOR_BUFFER_BIT)
glDrawPixels(width, height, GL_RGB, GL_UNSIGNED_BYTE, img)
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0)
player = Player(win, path, width, height)
glutDisplayFunc(player.display_func)
glutKeyboardFunc(player.keyboard_func)
glutMouseFunc(player.mouse_func)
glutMotionFunc(player.motion_func)
glutIdleFunc(player.process_events)
submenus = []
for instrument in range(128):
if instrument % 8 == 0:
submenus.append([families[instrument // 8],
glutCreateMenu(player.change_instrument)])
glutAddMenuEntry(instruments[instrument].encode('ascii'), instrument)
glutCreateMenu(player.change_instrument)
for family, submenu in submenus:
glutAddSubMenu(family.encode('ascii'), submenu)
glutAttachMenu(GLUT_RIGHT_BUTTON)
glutMainLoop()
def save(self, filename):
'''
'''
try:
import OpenGL.GL.EXT.framebuffer_object as fbo
except ImportError:
print 'You do not have the framebuffer extension on your video card'
print 'Cannot save figure'
return
w,h = self.window.width, self.window.height
# Setup framebuffer
framebuffer = fbo.glGenFramebuffersEXT(1)
fbo.glBindFramebufferEXT( fbo.GL_FRAMEBUFFER_EXT, framebuffer)
# Setup depthbuffer
depthbuffer = fbo.glGenRenderbuffersEXT( 1 )
fbo.glBindRenderbufferEXT( fbo.GL_RENDERBUFFER_EXT, depthbuffer )
fbo.glRenderbufferStorageEXT( fbo.GL_RENDERBUFFER_EXT, gl.GL_DEPTH_COMPONENT, w, h)
# Create texture to render to
data = np.zeros((w,h,4), dtype=np.ubyte)
texture = gl.glGenTextures(1)
gl.glBindTexture( gl.GL_TEXTURE_2D, texture)
gl.glTexParameteri( gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER, gl.GL_LINEAR)
gl.glTexParameteri( gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MIN_FILTER, gl.GL_LINEAR)
gl.glTexImage2D( gl.GL_TEXTURE_2D, 0, gl.GL_RGBA, w, h, 0,
gl.GL_RGBA, gl.GL_UNSIGNED_BYTE, data)
fbo.glFramebufferTexture2DEXT( gl.GL_FRAMEBUFFER_EXT, gl.GL_COLOR_ATTACHMENT0_EXT,
gl.GL_TEXTURE_2D, texture, 0)
fbo.glFramebufferRenderbufferEXT( gl.GL_FRAMEBUFFER_EXT, gl.GL_DEPTH_ATTACHMENT_EXT,
gl.GL_RENDERBUFFER_EXT, depthbuffer)
status = fbo.glCheckFramebufferStatusEXT( fbo.GL_FRAMEBUFFER_EXT )
if status != fbo.GL_FRAMEBUFFER_COMPLETE_EXT:
raise(RuntimeError, 'Error in framebuffer activation')
self.redraw()
self.window.refresh()
x,y,w,h = self.viewport
data = gl.glReadPixels (x,y,w, h, gl.GL_RGBA, gl.GL_UNSIGNED_BYTE)
from PIL import Image
image = Image.fromstring('RGBA', (w,h), data)
image = image.transpose(Image.FLIP_TOP_BOTTOM)
image.save (filename)
# Cleanup
fbo.glBindRenderbufferEXT( fbo.GL_RENDERBUFFER_EXT, 0 )
fbo.glBindFramebufferEXT( fbo.GL_FRAMEBUFFER_EXT, 0 )
gl.glDeleteTextures( texture )
fbo.glDeleteFramebuffersEXT( [framebuffer,] )
def createFBO(size=None):
""" Offscreen rendering
Save an offscreen rendering of size (w,h) to filename.
"""
def round2(n):
""" Get nearest power of two superior to n """
f = 1
while f < n:
f *= 2
return f
if size == None:
size = (512, 512)
w = round2(size[0])
h = round2(size[1])
# Setup framebuffer
frameBuffer = FB.glGenFramebuffersEXT(1)
FB.glBindFramebufferEXT(FB.GL_FRAMEBUFFER_EXT, frameBuffer)
# Setup depthbuffer
depthBuffer = FB.glGenRenderbuffersEXT(1)
FB.glBindRenderbufferEXT(FB.GL_RENDERBUFFER_EXT, depthBuffer)
FB.glRenderbufferStorageEXT(FB.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT,
w, h)
# Create texture to render to
texture = GL.glGenTextures(1)
GL.glBindTexture(GL.GL_TEXTURE_2D, texture)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER,
GL.GL_LINEAR)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER,
GL.GL_LINEAR)
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA32F_ARB, w, h, 0,
GL.GL_RGBA, GL.GL_FLOAT, None)
#attach texture to the frame buffer
FB.glFramebufferTexture2DEXT(FB.GL_FRAMEBUFFER_EXT,
GL.GL_COLOR_ATTACHMENT0_EXT, GL.GL_TEXTURE_2D,
texture, 0)
FB.glFramebufferRenderbufferEXT(FB.GL_FRAMEBUFFER_EXT,
GL.GL_DEPTH_ATTACHMENT_EXT,
FB.GL_RENDERBUFFER_EXT, depthBuffer)
status = FB.glCheckFramebufferStatusEXT(FB.GL_FRAMEBUFFER_EXT)
if status != FB.GL_FRAMEBUFFER_COMPLETE_EXT:
print "Error in framebuffer activation"
return
GL.glDisable(GL.GL_TEXTURE_2D)
return frameBuffer, texture, depthBuffer
def __init__(self, **kwargs):
super(HardwareFbo, self).__init__(**kwargs)
self.framebuffer = None
self.depthbuffer = None
set_texture(self.texture)
self.framebuffer = glGenFramebuffersEXT(1)
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, self.framebuffer)
if self.framebuffer == 0:
raise "Failed to initialize framebuffer"
if self.with_depthbuffer:
self.depthbuffer = glGenRenderbuffersEXT(1)
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, self.depthbuffer)
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, self.realsize[0], self.realsize[1])
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0)
glFramebufferRenderbufferEXT(
GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, self.depthbuffer
)
glFramebufferTexture2DEXT(
GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, get_texture_id(self.texture), 0
)
# check the fbo status
status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT)
if status != GL_FRAMEBUFFER_COMPLETE_EXT:
pymt.pymt_logger.error("Fbo: Error in framebuffer activation")
pymt.pymt_logger.error(
"Fbo: Details: HardwareFbo size=%s, realsize=%s, format=GL_RGBA" % (str(self.size), str(self.realsize))
)
if status in HardwareFbo.gl_fbo_errors:
pymt.pymt_logger.error("Fbo: Details: %s (%d)" % (HardwareFbo.gl_fbo_errors[status], status))
else:
pymt.pymt_logger.error("Fbo: Details: Unknown error (%d)" % status)
pymt.pymt_logger.error("Fbo: ")
pymt.pymt_logger.error("Fbo: You cannot use Hardware FBO.")
pymt.pymt_logger.error("Fbo: Please change the configuration to use Software FBO.")
pymt.pymt_logger.error("Fbo: You can use the pymt-config tools, or edit the configuration to set:")
pymt.pymt_logger.error("Fbo: ")
pymt.pymt_logger.error("Fbo: [graphics]")
pymt.pymt_logger.error("Fbo: fbo = software")
pymt.pymt_logger.error("Fbo: ")
raise UnsupportedFboException()
# unbind framebuffer
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0)
def __init__(self, **kwargs):
super(HardwareFbo, self).__init__(**kwargs)
self.framebuffer = None
self.depthbuffer = None
set_texture(self.texture)
self.framebuffer = glGenFramebuffersEXT(1)
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, self.framebuffer)
if self.framebuffer == 0:
raise 'Failed to initialize framebuffer'
if self.with_depthbuffer:
self.depthbuffer = glGenRenderbuffersEXT(1)
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, self.depthbuffer)
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT,
self.realsize[0], self.realsize[1])
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0)
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT, self.depthbuffer)
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
GL_TEXTURE_2D, get_texture_id(self.texture), 0)
# check the fbo status
status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT)
if status != GL_FRAMEBUFFER_COMPLETE_EXT:
pymt.pymt_logger.error('Fbo: Error in framebuffer activation')
pymt.pymt_logger.error('Fbo: Details: HardwareFbo size=%s, realsize=%s, format=GL_RGBA' % (
str(self.size), str(self.realsize)))
if status in HardwareFbo.gl_fbo_errors:
pymt.pymt_logger.error('Fbo: Details: %s (%d)' % (HardwareFbo.gl_fbo_errors[status], status))
else:
pymt.pymt_logger.error('Fbo: Details: Unknown error (%d)' % status)
pymt.pymt_logger.error('Fbo: ')
pymt.pymt_logger.error('Fbo: You cannot use Hardware FBO.')
pymt.pymt_logger.error('Fbo: Please change the configuration to use Software FBO.')
pymt.pymt_logger.error('Fbo: You can use the pymt-config tools, or edit the configuration to set:')
pymt.pymt_logger.error('Fbo: ')
pymt.pymt_logger.error('Fbo: [graphics]')
pymt.pymt_logger.error('Fbo: fbo = software')
pymt.pymt_logger.error('Fbo: ')
raise UnsupportedFboException()
# unbind framebuffer
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0)
def createFBO(size=None):
""" Offscreen rendering
Save an offscreen rendering of size (w,h) to filename.
"""
def round2 (n):
""" Get nearest power of two superior to n """
f = 1
while f<n:
f*= 2
return f
if size == None:
size = (512,512)
w = round2 (size[0])
h = round2 (size[1])
# Setup framebuffer
frameBuffer = FB.glGenFramebuffersEXT(1)
FB.glBindFramebufferEXT(FB.GL_FRAMEBUFFER_EXT, frameBuffer)
# Setup depthbuffer
depthBuffer = FB.glGenRenderbuffersEXT(1)
FB.glBindRenderbufferEXT (FB.GL_RENDERBUFFER_EXT,depthBuffer)
FB.glRenderbufferStorageEXT (FB.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT, w, h)
# Create texture to render to
texture = GL.glGenTextures (1)
GL.glBindTexture (GL.GL_TEXTURE_2D, texture)
GL.glTexParameteri (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR)
GL.glTexParameteri (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR)
GL.glTexImage2D (GL.GL_TEXTURE_2D, 0, GL.GL_RGBA32F_ARB, w, h, 0,
GL.GL_RGBA, GL.GL_FLOAT, None)
#attach texture to the frame buffer
FB.glFramebufferTexture2DEXT (FB.GL_FRAMEBUFFER_EXT, GL.GL_COLOR_ATTACHMENT0_EXT,
GL.GL_TEXTURE_2D, texture, 0);
FB.glFramebufferRenderbufferEXT(FB.GL_FRAMEBUFFER_EXT, GL.GL_DEPTH_ATTACHMENT_EXT,
FB.GL_RENDERBUFFER_EXT, depthBuffer);
status = FB.glCheckFramebufferStatusEXT (FB.GL_FRAMEBUFFER_EXT);
if status != FB.GL_FRAMEBUFFER_COMPLETE_EXT:
print "Error in framebuffer activation"
return
GL.glDisable(GL.GL_TEXTURE_2D);
return frameBuffer, texture, depthBuffer
def createFBO(size):
""" Offscreen rendering
"""
w = size[0]
h = size[1]
# Setup framebuffer
frameBuffer = FB.glGenFramebuffersEXT(1)
FB.glBindFramebufferEXT(FB.GL_FRAMEBUFFER_EXT, frameBuffer)
# Setup depthbuffer
depthBuffer = FB.glGenRenderbuffersEXT(1)
FB.glBindRenderbufferEXT(FB.GL_RENDERBUFFER_EXT, depthBuffer)
FB.glRenderbufferStorageEXT(FB.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT,
w, h)
# Create texture to render to
GL.glEnable(GL.GL_TEXTURE_2D)
texture = GL.glGenTextures(1)
GL.glBindTexture(GL.GL_TEXTURE_2D, texture)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER,
GL.GL_LINEAR)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER,
GL.GL_LINEAR)
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA32F_ARB, w, h, 0,
GL.GL_RGBA, GL.GL_FLOAT, None)
#attach texture to the frame buffer
FB.glFramebufferTexture2DEXT(FB.GL_FRAMEBUFFER_EXT,
GL.GL_COLOR_ATTACHMENT0_EXT, GL.GL_TEXTURE_2D,
texture, 0)
FB.glFramebufferRenderbufferEXT(FB.GL_FRAMEBUFFER_EXT,
GL.GL_DEPTH_ATTACHMENT_EXT,
FB.GL_RENDERBUFFER_EXT, depthBuffer)
status = FB.glCheckFramebufferStatusEXT(FB.GL_FRAMEBUFFER_EXT)
if status != FB.GL_FRAMEBUFFER_COMPLETE_EXT:
print "Error in framebuffer activation"
return
GL.glBindTexture(GL.GL_TEXTURE_2D, 0) #unbind that name to the target
GL.glDisable(GL.GL_TEXTURE_2D)
return frameBuffer, texture, depthBuffer
def createFBO(size):
""" Offscreen rendering
"""
w = size[0]
h = size[1]
# Setup framebuffer
frameBuffer = FB.glGenFramebuffersEXT(1)
FB.glBindFramebufferEXT(FB.GL_FRAMEBUFFER_EXT, frameBuffer)
# Setup depthbuffer
depthBuffer = FB.glGenRenderbuffersEXT(1)
FB.glBindRenderbufferEXT (FB.GL_RENDERBUFFER_EXT,depthBuffer)
FB.glRenderbufferStorageEXT (FB.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT, w, h)
# Create texture to render to
GL.glEnable(GL.GL_TEXTURE_2D)
texture = GL.glGenTextures (1)
GL.glBindTexture (GL.GL_TEXTURE_2D, texture)
GL.glTexParameteri (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR)
GL.glTexParameteri (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR)
GL.glTexImage2D (GL.GL_TEXTURE_2D, 0, GL.GL_RGBA32F_ARB, w, h, 0,
GL.GL_RGBA, GL.GL_FLOAT, None)
#attach texture to the frame buffer
FB.glFramebufferTexture2DEXT (FB.GL_FRAMEBUFFER_EXT, GL.GL_COLOR_ATTACHMENT0_EXT,
GL.GL_TEXTURE_2D, texture, 0);
FB.glFramebufferRenderbufferEXT(FB.GL_FRAMEBUFFER_EXT, GL.GL_DEPTH_ATTACHMENT_EXT,
FB.GL_RENDERBUFFER_EXT, depthBuffer);
status = FB.glCheckFramebufferStatusEXT (FB.GL_FRAMEBUFFER_EXT);
if status != FB.GL_FRAMEBUFFER_COMPLETE_EXT:
print "Error in framebuffer activation"
return
GL.glBindTexture(GL.GL_TEXTURE_2D, 0)#unbind that name to the target
GL.glDisable(GL.GL_TEXTURE_2D)
return frameBuffer, texture, depthBuffer