Commit Graph

8 Commits

Author SHA1 Message Date
Laurent Pinchart
08a75925d8 libcamera: Rename pixelformats.{cpp,h} to pixel_format.{cpp,h}
The libcamera source files are named after class names, using
snake_case. pixelformats.h and pixelformats.cpp don't comply with that
rule. Fix them.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-06-06 00:25:04 +03:00
Laurent Pinchart
93e72b695e libcamera: Move internal headers to include/libcamera/internal/
The libcamera internal headers are located in src/libcamera/include/.
The directory is added to the compiler headers search path with a meson
include_directories() directive, and internal headers are included with
(e.g. for the internal semaphore.h header)

  #include "semaphore.h"

All was well, until libcxx decided to implement the C++20
synchronization library. The __threading_support header gained a

  #include <semaphore.h>

to include the pthread's semaphore support. As include_directories()
adds src/libcamera/include/ to the compiler search path with -I, the
internal semaphore.h is included instead of the pthread version.
Needless to say, the compiler isn't happy.

Three options have been considered to fix this issue:

- Use -iquote instead of -I. The -iquote option instructs gcc to only
  consider the header search path for headers included with the ""
  version. Meson unfortunately doesn't support this option.

- Rename the internal semaphore.h header. This was deemed to be the
  beginning of a long whack-a-mole game, where namespace clashes with
  system libraries would appear over time (possibly dependent on
  particular system configurations) and would need to be constantly
  fixed.

- Move the internal headers to another directory to create a unique
  namespace through path components. This causes lots of churn in all
  the existing source files through the all project.

The first option would be best, but isn't available to us due to missing
support in meson. Even if -iquote support was added, we would need to
fix the problem before a new version of meson containing the required
support would be released.

The third option is thus the only practical solution available. Bite the
bullet, and do it, moving headers to include/libcamera/internal/.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
2020-05-16 03:38:11 +03:00
Laurent Pinchart
81ac45ba68 libcamera: v4l2_pixelformat: Fix V4L2_PIX_FMT_SBGGR10P format
The V4L2_PIX_FMT_SBGGR10P format was misspecified as
V4L2_PIX_FMT_SBGGR10. Fix it.

Fixes: 00d639d951 ("libcamera: formats: Add support for 8-, 10- and 12-bit Bayer formats")
Reported-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-30 17:27:34 +03:00
Laurent Pinchart
00d639d951 libcamera: formats: Add support for 8-, 10- and 12-bit Bayer formats
Add the 8-, 10- and 12-but Bayer formats, in both unpacked and
MIPI-packed variants, to the format tables in PixelFormatInfo and
V4L2PixelFormat.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-30 16:37:17 +03:00
Laurent Pinchart
37332ad50b libcamera: formats: Expose PixelFormatInfo as an internal API
To prepare for storing more information about pixel formats in
PixelFormatInfo, move the class to formats.cpp and document it. The
pixel formats database is moved to the same file, and a new static
function is added to PixelFormatInfo to retrieve a PixelFormatInfo for a
PixelFormat.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-30 14:54:03 +03:00
Laurent Pinchart
dcabb8e354 libcamera: v4l2_pixelformat: Use maps to convert between DRM and V4L2
Replace the two big manual switch...case with maps. This should not just
improve efficiency when we will have a larger number of formats, but
also paves the way to storing more format information to create
additional helpers.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-30 14:49:00 +03:00
Laurent Pinchart
2bc657f47b libcamera: v4l2_pixelformat: Move DRM/V4L2 format conversion
Move the DRM/V4L2 format conversion code from V4L2VideoDevice to
V4L2PixelFormat. This is a more natural home for the code.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-30 14:46:12 +03:00
Laurent Pinchart
09044794b4 libcamera: v4l2_pixelformat: Move V4L2PixelFormat to a new file
Move the V4L2PixelFormat class to a new file to prepare for additional
changes that will make it grow. No functional modification is included.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-30 14:44:59 +03:00