The utils::hex() function is defined as a function template that has
implementations for integer arguments only. When given a different
argument type, the compiler will not catch the issue, but linking will
fail:
src/libcamera/libcamera.so.p/camera_sensor.cpp.o: in function `libcamera::CameraSensor::validateSensorDriver()':
camera_sensor.cpp:(.text+0x1e6b): undefined reference to `libcamera::utils::_hex libcamera::utils::hex<libcamera::ControlId const*>(libcamera::ControlId const*, unsigned int)'
Move the failure to compilation time by enabling the function for
integer arguments only. This provides better diagnostics:
../../src/libcamera/camera_sensor.cpp: In member function ‘int libcamera::CameraSensor::validateSensorDriver()’:
../../src/libcamera/camera_sensor.cpp:199:77: error: no matching function for call to ‘hex(const libcamera::ControlId*&)’
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Headers which must not be exposed as part of the public libcamera API
should include base/private.h.
Any interface which includes the private.h header will only be able to
build if the libcamera_private dependency is used (or the
libcamera_base_private dependency directly).
Build targets which are intended to use the private API's will use the
libcamera_private to handle the automatic definition of the inclusion
guard.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Move the functionality for the following components to the new
base support library:
- BoundMethod
- EventDispatcher
- EventDispatcherPoll
- Log
- Message
- Object
- Signal
- Semaphore
- Thread
- Timer
While it would be preferable to see these split to move one component
per commit, these components are all interdependent upon each other,
which leaves us with one big change performing the move for all of them.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
The libcamera-base.so will feature internal support functionality
that is utilised by libcamera, and can be shared in other places.
This new library provides a layer beneath libcamera which provides
common abstractions to internal objects.
A pkg-config file is generated and named libcamera-base.pc which allows
components such as external IPA modules to link directly to this library
if they need. Normal applications will reference this library through
the Requires: statement provided by the libcamera.pc package
configuration, and linkage will be handled automatically through the
pkg-config mechanisms.
No code is moved to this library yet, this patch only introduces the
framework, construction and linkage.
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
