[libcamera-devel] [PATCH v2] apps: Share common source between applications

Kieran Bingham kieran.bingham at ideasonboard.com
Mon Oct 24 21:56:56 CEST 2022


Quoting Laurent Pinchart via libcamera-devel (2022-10-20 23:10:26)
> Multiple source files in the src/apps/cam/ directory are used by cam,
> qcam and lc-compliance. They are compiled separately for each
> application. Move them to a new src/apps/common/ directory and compile
> them in a static library to decrease the number of compilation
> operations.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
> Changes since v1:
> 
> - Move common code to src/apps/common/
> ---
>  src/apps/cam/camera_session.cpp             |  5 ++--
>  src/apps/cam/camera_session.h               |  2 +-
>  src/apps/cam/drm.cpp                        |  2 +-
>  src/apps/cam/file_sink.cpp                  |  5 ++--
>  src/apps/cam/main.cpp                       |  7 +++---
>  src/apps/cam/meson.build                    | 14 ++---------
>  src/apps/cam/sdl_sink.cpp                   |  5 ++--
>  src/apps/cam/sdl_texture.h                  |  2 +-
>  src/apps/{cam => common}/dng_writer.cpp     |  0
>  src/apps/{cam => common}/dng_writer.h       |  0
>  src/apps/{cam => common}/event_loop.cpp     |  0
>  src/apps/{cam => common}/event_loop.h       |  0
>  src/apps/{cam => common}/image.cpp          |  0
>  src/apps/{cam => common}/image.h            |  0
>  src/apps/common/meson.build                 | 26 +++++++++++++++++++++
>  src/apps/{cam => common}/options.cpp        |  0
>  src/apps/{cam => common}/options.h          |  0
>  src/apps/{cam => common}/stream_options.cpp |  0
>  src/apps/{cam => common}/stream_options.h   |  0
>  src/apps/lc-compliance/main.cpp             |  3 ++-
>  src/apps/lc-compliance/meson.build          |  3 +--
>  src/apps/lc-compliance/simple_capture.h     |  2 +-
>  src/apps/meson.build                        |  2 ++
>  src/apps/qcam/format_converter.cpp          |  2 +-
>  src/apps/qcam/main.cpp                      |  5 ++--
>  src/apps/qcam/main_window.cpp               |  4 ++--
>  src/apps/qcam/main_window.h                 |  2 +-
>  src/apps/qcam/meson.build                   | 13 ++---------
>  src/apps/qcam/viewfinder_gl.cpp             |  2 +-
>  src/apps/qcam/viewfinder_qt.cpp             |  2 +-
>  30 files changed, 61 insertions(+), 47 deletions(-)
>  rename src/apps/{cam => common}/dng_writer.cpp (100%)
>  rename src/apps/{cam => common}/dng_writer.h (100%)
>  rename src/apps/{cam => common}/event_loop.cpp (100%)
>  rename src/apps/{cam => common}/event_loop.h (100%)
>  rename src/apps/{cam => common}/image.cpp (100%)
>  rename src/apps/{cam => common}/image.h (100%)
>  create mode 100644 src/apps/common/meson.build
>  rename src/apps/{cam => common}/options.cpp (100%)
>  rename src/apps/{cam => common}/options.h (100%)
>  rename src/apps/{cam => common}/stream_options.cpp (100%)
>  rename src/apps/{cam => common}/stream_options.h (100%)
> 
> diff --git a/src/apps/cam/camera_session.cpp b/src/apps/cam/camera_session.cpp
> index 6b409c983b86..8fcec6304d66 100644
> --- a/src/apps/cam/camera_session.cpp
> +++ b/src/apps/cam/camera_session.cpp
> @@ -13,9 +13,11 @@
>  #include <libcamera/control_ids.h>
>  #include <libcamera/property_ids.h>
>  
> +#include "../common/event_loop.h"
> +#include "../common/stream_options.h"
> +

I still dislike the includes from a relative parent path.

Is it possible to fix with the dependency or static library apps_lib
object? Or just something you didn't want to do?


Anyway, with or without that, grouping this makes sense.


Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>

>  #include "camera_session.h"
>  #include "capture_script.h"
> -#include "event_loop.h"
>  #include "file_sink.h"
>  #ifdef HAVE_KMS
>  #include "kms_sink.h"
> @@ -24,7 +26,6 @@
>  #ifdef HAVE_SDL
>  #include "sdl_sink.h"
>  #endif
> -#include "stream_options.h"
>  
>  using namespace libcamera;
>  
> diff --git a/src/apps/cam/camera_session.h b/src/apps/cam/camera_session.h
> index d562caae0794..0bab519f9efd 100644
> --- a/src/apps/cam/camera_session.h
> +++ b/src/apps/cam/camera_session.h
> @@ -21,7 +21,7 @@
>  #include <libcamera/request.h>
>  #include <libcamera/stream.h>
>  
> -#include "options.h"
> +#include "../common/options.h"
>  
>  class CaptureScript;
>  class FrameSink;
> diff --git a/src/apps/cam/drm.cpp b/src/apps/cam/drm.cpp
> index 2e4d7985245d..8779a7137f80 100644
> --- a/src/apps/cam/drm.cpp
> +++ b/src/apps/cam/drm.cpp
> @@ -24,7 +24,7 @@
>  
>  #include <libdrm/drm_mode.h>
>  
> -#include "event_loop.h"
> +#include "../common/event_loop.h"
>  
>  namespace DRM {
>  
> diff --git a/src/apps/cam/file_sink.cpp b/src/apps/cam/file_sink.cpp
> index 9d60c04e1cf4..4525fbada7c4 100644
> --- a/src/apps/cam/file_sink.cpp
> +++ b/src/apps/cam/file_sink.cpp
> @@ -15,9 +15,10 @@
>  
>  #include <libcamera/camera.h>
>  
> -#include "dng_writer.h"
> +#include "../common/dng_writer.h"
> +#include "../common/image.h"
> +
>  #include "file_sink.h"
> -#include "image.h"
>  
>  using namespace libcamera;
>  
> diff --git a/src/apps/cam/main.cpp b/src/apps/cam/main.cpp
> index d70130e2ab81..5d8a57bc14e5 100644
> --- a/src/apps/cam/main.cpp
> +++ b/src/apps/cam/main.cpp
> @@ -14,11 +14,12 @@
>  #include <libcamera/libcamera.h>
>  #include <libcamera/property_ids.h>
>  
> +#include "../common/event_loop.h"
> +#include "../common/options.h"
> +#include "../common/stream_options.h"
> +
>  #include "camera_session.h"
> -#include "event_loop.h"
>  #include "main.h"
> -#include "options.h"
> -#include "stream_options.h"
>  
>  using namespace libcamera;
>  
> diff --git a/src/apps/cam/meson.build b/src/apps/cam/meson.build
> index 297de64fbdd9..48c834ace71b 100644
> --- a/src/apps/cam/meson.build
> +++ b/src/apps/cam/meson.build
> @@ -10,16 +10,12 @@ cam_enabled = true
>  cam_sources = files([
>      'camera_session.cpp',
>      'capture_script.cpp',
> -    'event_loop.cpp',
>      'file_sink.cpp',
>      'frame_sink.cpp',
> -    'image.cpp',
>      'main.cpp',
> -    'options.cpp',
> -    'stream_options.cpp',
>  ])
>  
> -cam_cpp_args = []
> +cam_cpp_args = [apps_cpp_args]
>  
>  libdrm = dependency('libdrm', required : false)
>  libjpeg = dependency('libjpeg', required : false)
> @@ -49,14 +45,8 @@ if libsdl2.found()
>      endif
>  endif
>  
> -if libtiff.found()
> -    cam_cpp_args += ['-DHAVE_TIFF']
> -    cam_sources += files([
> -        'dng_writer.cpp',
> -    ])
> -endif
> -
>  cam  = executable('cam', cam_sources,
> +                  link_with : apps_lib,
>                    dependencies : [
>                        libatomic,
>                        libcamera_public,
> diff --git a/src/apps/cam/sdl_sink.cpp b/src/apps/cam/sdl_sink.cpp
> index ee177227dbca..a2f4abc1ec8c 100644
> --- a/src/apps/cam/sdl_sink.cpp
> +++ b/src/apps/cam/sdl_sink.cpp
> @@ -19,8 +19,9 @@
>  #include <libcamera/camera.h>
>  #include <libcamera/formats.h>
>  
> -#include "event_loop.h"
> -#include "image.h"
> +#include "../common/event_loop.h"
> +#include "../common/image.h"
> +
>  #ifdef HAVE_LIBJPEG
>  #include "sdl_texture_mjpg.h"
>  #endif
> diff --git a/src/apps/cam/sdl_texture.h b/src/apps/cam/sdl_texture.h
> index 6ccd85eab390..3993dd46ece7 100644
> --- a/src/apps/cam/sdl_texture.h
> +++ b/src/apps/cam/sdl_texture.h
> @@ -11,7 +11,7 @@
>  
>  #include <SDL2/SDL.h>
>  
> -#include "image.h"
> +#include "../common/image.h"
>  
>  class SDLTexture
>  {
> diff --git a/src/apps/cam/dng_writer.cpp b/src/apps/common/dng_writer.cpp
> similarity index 100%
> rename from src/apps/cam/dng_writer.cpp
> rename to src/apps/common/dng_writer.cpp
> diff --git a/src/apps/cam/dng_writer.h b/src/apps/common/dng_writer.h
> similarity index 100%
> rename from src/apps/cam/dng_writer.h
> rename to src/apps/common/dng_writer.h
> diff --git a/src/apps/cam/event_loop.cpp b/src/apps/common/event_loop.cpp
> similarity index 100%
> rename from src/apps/cam/event_loop.cpp
> rename to src/apps/common/event_loop.cpp
> diff --git a/src/apps/cam/event_loop.h b/src/apps/common/event_loop.h
> similarity index 100%
> rename from src/apps/cam/event_loop.h
> rename to src/apps/common/event_loop.h
> diff --git a/src/apps/cam/image.cpp b/src/apps/common/image.cpp
> similarity index 100%
> rename from src/apps/cam/image.cpp
> rename to src/apps/common/image.cpp
> diff --git a/src/apps/cam/image.h b/src/apps/common/image.h
> similarity index 100%
> rename from src/apps/cam/image.h
> rename to src/apps/common/image.h
> diff --git a/src/apps/common/meson.build b/src/apps/common/meson.build
> new file mode 100644
> index 000000000000..479326cdacbf
> --- /dev/null
> +++ b/src/apps/common/meson.build
> @@ -0,0 +1,26 @@
> +# SPDX-License-Identifier: CC0-1.0
> +
> +apps_sources = files([
> +    'image.cpp',
> +    'options.cpp',
> +    'stream_options.cpp',
> +])
> +
> +apps_cpp_args = []
> +
> +if libevent.found()
> +    apps_sources += files([
> +        'event_loop.cpp',
> +    ])
> +endif
> +
> +if libtiff.found()
> +    apps_cpp_args += ['-DHAVE_TIFF']
> +    apps_sources += files([
> +        'dng_writer.cpp',
> +    ])
> +endif
> +
> +apps_lib = static_library('apps', apps_sources,
> +                          cpp_args : apps_cpp_args,
> +                          dependencies : [libcamera_public])
> diff --git a/src/apps/cam/options.cpp b/src/apps/common/options.cpp
> similarity index 100%
> rename from src/apps/cam/options.cpp
> rename to src/apps/common/options.cpp
> diff --git a/src/apps/cam/options.h b/src/apps/common/options.h
> similarity index 100%
> rename from src/apps/cam/options.h
> rename to src/apps/common/options.h
> diff --git a/src/apps/cam/stream_options.cpp b/src/apps/common/stream_options.cpp
> similarity index 100%
> rename from src/apps/cam/stream_options.cpp
> rename to src/apps/common/stream_options.cpp
> diff --git a/src/apps/cam/stream_options.h b/src/apps/common/stream_options.h
> similarity index 100%
> rename from src/apps/cam/stream_options.h
> rename to src/apps/common/stream_options.h
> diff --git a/src/apps/lc-compliance/main.cpp b/src/apps/lc-compliance/main.cpp
> index 7eb52ae4c094..74e0d4df461b 100644
> --- a/src/apps/lc-compliance/main.cpp
> +++ b/src/apps/lc-compliance/main.cpp
> @@ -14,8 +14,9 @@
>  
>  #include <libcamera/libcamera.h>
>  
> +#include "../common/options.h"
> +
>  #include "environment.h"
> -#include "../cam/options.h"
>  
>  using namespace libcamera;
>  
> diff --git a/src/apps/lc-compliance/meson.build b/src/apps/lc-compliance/meson.build
> index 05d622be0a40..51d9075ac30b 100644
> --- a/src/apps/lc-compliance/meson.build
> +++ b/src/apps/lc-compliance/meson.build
> @@ -11,8 +11,6 @@ endif
>  lc_compliance_enabled = true
>  
>  lc_compliance_sources = files([
> -    '../cam/event_loop.cpp',
> -    '../cam/options.cpp',
>      'environment.cpp',
>      'main.cpp',
>      'simple_capture.cpp',
> @@ -21,6 +19,7 @@ lc_compliance_sources = files([
>  
>  lc_compliance  = executable('lc-compliance', lc_compliance_sources,
>                              cpp_args : [ '-fexceptions' ],
> +                            link_with : apps_lib,
>                              dependencies : [
>                                  libatomic,
>                                  libcamera_public,
> diff --git a/src/apps/lc-compliance/simple_capture.h b/src/apps/lc-compliance/simple_capture.h
> index 9d31f7cb2e53..fd9d2a97fd8d 100644
> --- a/src/apps/lc-compliance/simple_capture.h
> +++ b/src/apps/lc-compliance/simple_capture.h
> @@ -11,7 +11,7 @@
>  
>  #include <libcamera/libcamera.h>
>  
> -#include "../cam/event_loop.h"
> +#include "../common/event_loop.h"
>  
>  class SimpleCapture
>  {
> diff --git a/src/apps/meson.build b/src/apps/meson.build
> index b722a8f110d8..099876356bd1 100644
> --- a/src/apps/meson.build
> +++ b/src/apps/meson.build
> @@ -12,6 +12,8 @@ endif
>  
>  libtiff = dependency('libtiff-4', required : false)
>  
> +subdir('common')
> +
>  subdir('lc-compliance')
>  
>  subdir('cam')
> diff --git a/src/apps/qcam/format_converter.cpp b/src/apps/qcam/format_converter.cpp
> index 9331da0ce7a3..de76b32c7ffd 100644
> --- a/src/apps/qcam/format_converter.cpp
> +++ b/src/apps/qcam/format_converter.cpp
> @@ -14,7 +14,7 @@
>  
>  #include <libcamera/formats.h>
>  
> -#include "../cam/image.h"
> +#include "../common/image.h"
>  
>  #define RGBSHIFT               8
>  #ifndef MAX
> diff --git a/src/apps/qcam/main.cpp b/src/apps/qcam/main.cpp
> index d3f01a85f1fb..36cb93a53701 100644
> --- a/src/apps/qcam/main.cpp
> +++ b/src/apps/qcam/main.cpp
> @@ -13,8 +13,9 @@
>  
>  #include <libcamera/camera_manager.h>
>  
> -#include "../cam/options.h"
> -#include "../cam/stream_options.h"
> +#include "../common/options.h"
> +#include "../common/stream_options.h"
> +
>  #include "main_window.h"
>  #include "message_handler.h"
>  
> diff --git a/src/apps/qcam/main_window.cpp b/src/apps/qcam/main_window.cpp
> index f553ccb01805..fb2db4aad511 100644
> --- a/src/apps/qcam/main_window.cpp
> +++ b/src/apps/qcam/main_window.cpp
> @@ -26,8 +26,8 @@
>  #include <QToolButton>
>  #include <QtDebug>
>  
> -#include "../cam/dng_writer.h"
> -#include "../cam/image.h"
> +#include "../common/dng_writer.h"
> +#include "../common/image.h"
>  
>  #include "cam_select_dialog.h"
>  #ifndef QT_NO_OPENGL
> diff --git a/src/apps/qcam/main_window.h b/src/apps/qcam/main_window.h
> index 95b64124336f..2e3e1b5c83c2 100644
> --- a/src/apps/qcam/main_window.h
> +++ b/src/apps/qcam/main_window.h
> @@ -27,7 +27,7 @@
>  #include <QQueue>
>  #include <QTimer>
>  
> -#include "../cam/stream_options.h"
> +#include "../common/stream_options.h"
>  
>  #include "viewfinder.h"
>  
> diff --git a/src/apps/qcam/meson.build b/src/apps/qcam/meson.build
> index e298101e2c43..eb0712d91351 100644
> --- a/src/apps/qcam/meson.build
> +++ b/src/apps/qcam/meson.build
> @@ -15,9 +15,6 @@ endif
>  qcam_enabled = true
>  
>  qcam_sources = files([
> -    '../cam/image.cpp',
> -    '../cam/options.cpp',
> -    '../cam/stream_options.cpp',
>      'cam_select_dialog.cpp',
>      'format_converter.cpp',
>      'main.cpp',
> @@ -36,14 +33,7 @@ qcam_resources = files([
>      'assets/feathericons/feathericons.qrc',
>  ])
>  
> -qt5_cpp_args = ['-DQT_NO_KEYWORDS']
> -
> -if libtiff.found()
> -    qt5_cpp_args += ['-DHAVE_TIFF']
> -    qcam_sources += files([
> -        '../cam/dng_writer.cpp',
> -    ])
> -endif
> +qt5_cpp_args = [apps_cpp_args, '-DQT_NO_KEYWORDS']
>  
>  if cxx.has_header_symbol('QOpenGLWidget', 'QOpenGLWidget',
>                           dependencies : qt5_dep, args : '-fPIC')
> @@ -73,6 +63,7 @@ resources = qt5.preprocess(moc_headers: qcam_moc_headers,
>  
>  qcam  = executable('qcam', qcam_sources, resources,
>                     install : true,
> +                   link_with : apps_lib,
>                     dependencies : [
>                         libatomic,
>                         libcamera_public,
> diff --git a/src/apps/qcam/viewfinder_gl.cpp b/src/apps/qcam/viewfinder_gl.cpp
> index 38ddad58e09e..f83b99ad6272 100644
> --- a/src/apps/qcam/viewfinder_gl.cpp
> +++ b/src/apps/qcam/viewfinder_gl.cpp
> @@ -16,7 +16,7 @@
>  
>  #include <libcamera/formats.h>
>  
> -#include "../cam/image.h"
> +#include "../common/image.h"
>  
>  static const QList<libcamera::PixelFormat> supportedFormats{
>         /* YUV - packed (single plane) */
> diff --git a/src/apps/qcam/viewfinder_qt.cpp b/src/apps/qcam/viewfinder_qt.cpp
> index c20fd6bc8fc2..a7482bea6afd 100644
> --- a/src/apps/qcam/viewfinder_qt.cpp
> +++ b/src/apps/qcam/viewfinder_qt.cpp
> @@ -20,7 +20,7 @@
>  #include <QPainter>
>  #include <QtDebug>
>  
> -#include "../cam/image.h"
> +#include "../common/image.h"
>  
>  #include "format_converter.h"
>  
> -- 
> Regards,
> 
> Laurent Pinchart
>


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