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authorKieran Bingham <kieran.bingham@ideasonboard.com>2020-10-22 14:12:26 +0100
committerKieran Bingham <kieran.bingham@ideasonboard.com>2021-02-12 14:35:20 +0000
commit640f48d60399fe63f549f6cb5fa8623a6b6b2810 (patch)
tree3802132387aa0f9310e7d0efd5cde23a72e263a0 /src/qcam/assets/feathericons/chevrons-down.svg
parent83c5a2a7aa67b609bc5c14698b76b9eaee644d17 (diff)
libcamera: Utilise LIBCAMERA_DISABLE_COPY
Replace existing use cases where the copy constructor and copy assignment operator are deleted with the LIBCAMERA_DISABLE_COPY statement Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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generated by cgit v1.2.1 (git 2.18.0) at 2025-01-13 00:07:10 +0000
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# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2022, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

import pykms
import selectors
import sys


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

        self.cm = state.cm
        self.contexts = state.contexts
        self.running = False

        card = pykms.Card()

        res = pykms.ResourceManager(card)
        conn = res.reserve_connector()
        crtc = res.reserve_crtc(conn)
        mode = conn.get_default_mode()
        modeb = mode.to_blob(card)

        req = pykms.AtomicReq(card)
        req.add_connector(conn, crtc)
        req.add_crtc(crtc, modeb)
        r = req.commit_sync(allow_modeset=True)
        assert(r == 0)

        self.card = card
        self.resman = res
        self.crtc = crtc
        self.mode = mode

        self.bufqueue = []
        self.current = None
        self.next = None
        self.cam_2_drm = {}

    # KMS

    def close(self):
        req = pykms.AtomicReq(self.card)
        for s in self.streams:
            req.add_plane(s['plane'], None, None, dst=(0, 0, 0, 0))
        req.commit()

    def add_plane(self, req, stream, fb):
        s = next(s for s in self.streams if s['stream'] == stream)
        idx = s['idx']
        plane = s['plane']

        if idx % 2 == 0:
            x = 0
        else:
            x = self.mode.hdisplay - fb.width

        if idx // 2 == 0:
            y = 0
        else:
            y = self.mode.vdisplay - fb.height

        req.add_plane(plane, fb, self.crtc, dst=(x, y, fb.width, fb.height))

    def apply_request(self, drmreq):

        buffers = drmreq['camreq'].buffers

        req = pykms.AtomicReq(self.card)

        for stream, fb in buffers.items():
            drmfb = self.cam_2_drm.get(fb, None)
            self.add_plane(req, stream, drmfb)

        req.commit()

    def handle_page_flip(self, frame, time):
        old = self.current
        self.current = self.next

        if len(self.bufqueue) > 0:
            self.next = self.bufqueue.pop(0)
        else:
            self.next = None

        if self.next:
            drmreq = self.next

            self.apply_request(drmreq)

        if old:
            req = old['camreq']
            ctx = old['camctx']
            self.state.request_processed(ctx, req)

    def queue(self, drmreq):
        if not self.next:
            self.next = drmreq
            self.apply_request(drmreq)
        else:
            self.bufqueue.append(drmreq)

    # libcamera

    def setup(self):
        self.streams = []

        idx = 0
        for ctx in self.contexts:
            for stream in ctx.streams:

                cfg = stream.configuration
                fmt = cfg.pixel_format
                fmt = pykms.PixelFormat(fmt.fourcc)

                plane = self.resman.reserve_generic_plane(self.crtc, fmt)
                assert(plane is not None)

                self.streams.append({
                    'idx': idx,
                    'stream': stream,
                    'plane': plane,