libcamera/pinchartl/libcamera.git - Laurent Pinchart's clone of libcamera

Age	Commit message (Expand)	Author
2019-04-09	libcamera: Switch to CameraConfiguration	Niklas Söderlund
2019-04-05	libcamera: camera: Add support for stream usages	Niklas Söderlund
2019-04-04	test: camera: Remove streams argument from configurationValid()	Niklas Söderlund
2019-03-14	test: camera: Add capture test	Niklas Söderlund

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# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2022, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

from helpers import mfb_to_rgb
from PyQt5 import QtCore, QtGui, QtWidgets
import libcamera as libcam
import libcamera.utils
import sys


# Loading MJPEG to a QPixmap produces corrupt JPEG data warnings. Ignore these.
def qt_message_handler(msg_type, msg_log_context, msg_string):
    if msg_string.startswith("Corrupt JPEG data"):
        return

    # For some reason qInstallMessageHandler returns None, so we won't
    # call the old handler
    if old_msg_handler is not None:
        old_msg_handler(msg_type, msg_log_context, msg_string)
    else:
        print(msg_string)


old_msg_handler = QtCore.qInstallMessageHandler(qt_message_handler)


def rgb_to_pix(rgb):
    w = rgb.shape[1]
    h = rgb.shape[0]
    qim = QtGui.QImage(rgb, w, h, QtGui.QImage.Format.Format_RGB888)
    pix = QtGui.QPixmap.fromImage(qim)
    return pix


class QtRenderer:
    def __init__(self, state):
        self.state = state

        self.cm = state.cm
        self.contexts = state.contexts

    def setup(self):
        self.app = QtWidgets.QApplication([])

        windows = []

        for ctx in self.contexts:
            for stream in ctx.streams:
                window = MainWindow(ctx, stream)
                window.show()
                windows.append(window)

        self.windows = windows

        buf_mmap_map = {}

        for ctx in self.contexts:
            for stream in ctx.streams:
                for buf in ctx.allocator.buffers(stream):
                    mfb = libcamera.utils.MappedFrameBuffer(buf).mmap()
                    buf_mmap_map[buf] = mfb