[libcamera-devel] [PATCH v2 1/3] apps: qcam: Port to Qt 6

[Kieran Bingham]

Quoting Kieran Bingham (2024-04-17 21:26:24)
> Quoting Neal Gompa (2024-04-17 20:58:16)
> > On Wed, Apr 17, 2024 at 11:42 AM Laurent Pinchart
> > <laurent.pinchart at ideasonboard.com> wrote:
> > >
> > > On Tue, Apr 16, 2024 at 07:14:35PM +0100, Kieran Bingham wrote:
> > > > Quoting Neal Gompa via libcamera-devel (2024-01-21 22:39:53)
> > > > > Open source Qt 5 has been effectively end of life since the release
> > > > > of Qt 6, and Qt 6 has current LTS releases now.
> > > > >
> > > > > This change ports qcam to Qt 6.2 and drops some of the baggage related
> > > > > to Qt 5 that is no longer applicable.
> > > >
> > > > With Ubuntu 24.04 release 'imminent' (as well as the next libcamera-0.3
> > > > after I can merge the softISP) I believe it's time to merge this patch.
> > >
> > > Unless I'm mistaken, Ubuntu will still ship Qt5, so there's no urgency.
> > > I'm not opposed to this patch though (once fixed), as Qt6 seems to be
> > > available everywhere.
> > >
> > 
> > This patch isn't broken. I just was able to build it on Ubuntu 24.04
> > just fine: https://download.opensuse.org/repositories/home:/Pharaoh_Atem:/libcamera/xUbuntu_24.04/amd64/
> 
> I don't think the patch is broken, Just that there must be some
> additional dependency required which may have been implicitly installed
> in your case, but seems not to have been in my case. 
> 
> I'm not going to merge a patch that will prevent me from using qcam
> until I know how to correctly build it again.

"""
for qcam: [optional]
        libtiff-dev qt6-base-dev qt6-tools-dev-tools
"""
kbingham at Monstersaurus:~/iob/libcamera/libcamera$ sudo apt install libtiff-dev qt6-base-dev qt6-tools-dev-tools
[sudo] password for kbingham:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
qt6-tools-dev-tools is already the newest version (6.2.4-1).
libtiff-dev is already the newest version (4.3.0-6ubuntu0.8).
libtiff-dev set to manually installed.
qt6-base-dev is already the newest version (6.2.4+dfsg-2ubuntu1.1).


Then:

================================================================================
kbingham at Monstersaurus:~/iob/libcamera/libcamera$ meson setup qt6-test -Dqcam=enabled
The Meson build system
Version: 1.4.0
Source dir: /home/kbingham/iob/libcamera/libcamera
Build dir: /home/kbingham/iob/libcamera/libcamera/qt6-test
Build type: native build
WARNING: failed to process netrc file: ~/.netrc access too permissive: access permissions must restrict access to only the owner (/home/kbingham/.netrc, line 3).
Project name: libcamera
Project version: 0.2.0
C compiler for the host machine: ccache cc (gcc 11.4.0 "cc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0")
C linker for the host machine: cc ld.bfd 2.38
C++ compiler for the host machine: ccache c++ (gcc 11.4.0 "c++ (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0")
C++ linker for the host machine: c++ ld.bfd 2.38
Host machine cpu family: x86_64
Host machine cpu: x86_64
Header "unistd.h" has symbol "issetugid" : NO
Header "locale.h" has symbol "locale_t" : YES
Header "stdlib.h" has symbol "secure_getenv" : YES
Compiler for C supports arguments -Wno-c99-designator: NO
Found pkg-config: YES (/usr/bin/pkg-config) 0.29.2
Run-time dependency lttng-ust found: YES 2.13.1
Program ./parser.py found: YES (/home/kbingham/iob/libcamera/libcamera/utils/ipc/./parser.py)
Program ./generate.py found: YES (/home/kbingham/iob/libcamera/libcamera/utils/ipc/./generate.py)
Program ./extract-docs.py found: YES (/home/kbingham/iob/libcamera/libcamera/utils/ipc/./extract-docs.py)
Program ./gen-tp-header.py found: YES (/home/kbingham/iob/libcamera/libcamera/utils/tracepoints/./gen-tp-header.py)
Configuring version.h using configuration
Program openssl found: YES (/usr/bin/openssl)
Library atomic found: YES
Run-time dependency threads found: YES
Run-time dependency libdw found: YES 0.186
Run-time dependency libunwind found: YES 1.3.2
Header "execinfo.h" has symbol "backtrace" : YES
Checking for function "dlopen" : YES
Run-time dependency libudev found: YES 249
Run-time dependency yaml-0.1 found: YES 0.2.2
Run-time dependency gnutls found: YES 3.7.3
Dependency libexif skipped: feature android disabled
Dependency libjpeg skipped: feature android disabled
Run-time dependency libevent_pthreads found: YES 2.1.12-stable
Run-time dependency libtiff-4 found: YES 4.3.0
Run-time dependency GTest found: YES 1.11.0
Run-time dependency libdrm found: YES 2.4.113
Run-time dependency libjpeg found: YES 2.1.2
Run-time dependency sdl2 found: YES 2.0.20
Run-time dependency qt6 (modules: Core, Gui, OpenGL, OpenGLWidgets, Widgets) found: NO (tried pkgconfig)

src/apps/qcam/meson.build:4:10: ERROR: Dependency "qt6" not found, tried pkgconfig

A full log can be found at /home/kbingham/iob/libcamera/libcamera/qt6-test/meson-logs/meson-log.txt
================================================================================

I wonder if the modules have been implicitly installed, or used before
and now need to be explicitly listed as a dependency.


---
Regards

Kieran




> --
> Kieran
> 
> 
> > 
> > The build dependencies I used were the ones in the readme.
> > 
> > You can see for yourself in the "debbuild" conditional for
> > buildrequires: https://build.opensuse.org/projects/home:Pharaoh_Atem:libcamera/packages/libcamera/files/libcamera.spec?expand=1
> > 
> > 
> > 
> > -- 
> > 真実はいつも一つ！/ Always, there's only one truth!