def setup_capture(window):
ww, wh = window.get_geometry()[2:4]
capture = None
if USE_NVFBC:
try:
if USE_NVFBC_CUDA:
capture = NvFBC_CUDACapture()
else:
capture = NvFBC_SysCapture()
capture.init_context(ww, wh)
image = capture.get_image(0, 0, ww, wh)
assert image
except Exception as e:
log("get_image() NvFBC test failed", exc_info=True)
log("not using %s: %s", capture, e)
capture = None
if not capture and XImage.has_XShm() and USE_XSHM:
capture = XImageCapture(get_xwindow(window))
if not capture:
capture = GTKImageCapture(window)
log("setup_capture(%s)=%s", window, capture)
return capture
def get_image(self, x, y, width, height):
image = None
if not self.capture:
ww, wh = self.get_geometry()[2:4]
if USE_NVFBC:
try:
if USE_NVFBC_CUDA:
self.capture = NvFBC_CUDACapture()
else:
self.capture = NvFBC_SysCapture()
self.capture.init_context(ww, wh)
image = self.capture.get_image(x, y, width, height)
except Exception as e:
log("get_image() NvFBC test failed", exc_info=True)
log("not using %s: %s", self.capture, e)
self.capture = None
if not self.capture and XImage.has_XShm() and USE_XSHM:
self.capture = XImageCapture(get_xwindow(self.window))
if not self.capture:
self.capture = GTKImageCapture(self)
log("shadow image capture=%s", self.capture)
return image or self.capture.get_image(x, y, width, height)