From 74ba01121a61bd02bc8f09abbf3fd04db3561ab0 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Mon, 9 May 2022 13:10:23 +0300 Subject: py: Add cam.py Add cam.py, which mimics the 'cam' tool. Four rendering backends are added: * null - Do nothing * kms - Use KMS with dmabufs * qt - SW render on a Qt window * qtgl - OpenGL render on a Qt window All the renderers handle only a few pixel formats, and especially the GL renderer is just a prototype. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart Signed-off-by: Kieran Bingham --- src/py/cam/cam_null.py | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/py/cam/cam_null.py (limited to 'src/py/cam/cam_null.py') diff --git a/src/py/cam/cam_null.py b/src/py/cam/cam_null.py new file mode 100644 index 00000000..a6da9671 --- /dev/null +++ b/src/py/cam/cam_null.py @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (C) 2022, Tomi Valkeinen + +import selectors +import sys + + +class NullRenderer: + def __init__(self, state): + self.state = state + + self.cm = state['cm'] + self.contexts = state['contexts'] + + self.running = False + + def setup(self): + pass + + def run(self): + print('Capturing...') + + self.running = True + + sel = selectors.DefaultSelector() + sel.register(self.cm.efd, selectors.EVENT_READ, self.readcam) + sel.register(sys.stdin, selectors.EVENT_READ, self.readkey) + + print('Press enter to exit') + + while self.running: + events = sel.select() + for key, mask in events: + callback = key.data + callback(key.fileobj) + + print('Exiting...') + + def readcam(self, fd): + self.running = self.state['event_handler'](self.state) + + def readkey(self, fileobj): + sys.stdin.readline() + self.running = False + + def request_handler(self, ctx, req): + self.state['request_prcessed'](ctx, req) -- cgit v1.2.1