[libcamera-devel] [PATCH] android: Cleanup libcamera namespace usage

Umang Jain umang.jain at ideasonboard.com
Fri Sep 3 10:40:03 CEST 2021


Hiro,


On 9/3/21 2:04 PM, Hirokazu Honda wrote:
> Hi Umang, thank you for the patch.
>
>
> On Fri, Sep 3, 2021 at 4:52 PM Umang Jain <umang.jain at ideasonboard.com> wrote:
>> Usually .cpp files are equipped with using namespace libcamera;
>> Hence, it is unnecessary mentioning the explicit namespace of
>> libcamera at certain places.
>>
>> While at it, a small typo in a comment was noticed and fixed as
>> part of this patch.
>>
>> Signed-off-by: Umang Jain <umang.jain at ideasonboard.com>
>> ---
>>   src/android/camera_capabilities.cpp      |  4 ++--
>>   src/android/camera_device.cpp            |  6 +++---
>>   src/android/camera_stream.cpp            |  4 ++--
>>   src/android/camera_worker.cpp            |  2 +-
>>   src/android/mm/cros_camera_buffer.cpp    |  6 +++---
>>   src/android/mm/generic_camera_buffer.cpp | 11 +++++------
> $ grep -l -r "libcamera::" --include \*.cpp
> camera_device.cpp
> camera_capabilities.cpp
> camera_worker.cpp
> camera_stream.cpp
> mm/generic_camera_buffer.cpp
> mm/cros_camera_buffer.cpp
> jpeg/encoder_libjpeg.cpp
> jpeg/thumbnailer.cpp
>
> There are also cases in jpeg directories.
> Could you apply this change to them?

Are you running this with the patch applied? :-)

With his patch applied here, I get:

[uajain at fedora android]$ grep -l -r "libcamera::" --include \*.cpp
camera_device.cpp
camera_worker.cpp
camera_stream.cpp
[uajain at fedora android]$ git grep -ni "libcamera::" | grep \.cpp
camera_device.cpp:54: * Reorder the configurations so that 
libcamera::Camera can accept them as much
camera_device.cpp:253: * The CameraDevice class wraps a 
libcamera::Camera instance, and implements
camera_device.cpp:315:     * If the libcamera::Camera provides those 
information as retrieved
camera_device.cpp:1250:     * will have to be passed to the 
libcamera::Camera and extracted
camera_device.cpp:1251:     * from libcamera::Request::metadata.
camera_stream.cpp:28: * camera framework to a 
libcamera::StreamConfiguration.
camera_stream.cpp:40: * the associated libcamera::Stream, including the 
creation of the encoder
camera_worker.cpp:23: * \brief Wrap a libcamera::Request associated with 
buffers and fences
camera_worker.cpp:27: * by the CameraWorker which queues it to the 
libcamera::Camera after handling

I don't think it would be wise to remove the `libcamera::` on comments. 
They probably have some "contextual" value


>
> Thanks,
> -Hiro
>>   6 files changed, 16 insertions(+), 17 deletions(-)
>>
>> diff --git a/src/android/camera_capabilities.cpp b/src/android/camera_capabilities.cpp
>> index c16e755f..e92bca42 100644
>> --- a/src/android/camera_capabilities.cpp
>> +++ b/src/android/camera_capabilities.cpp
>> @@ -378,7 +378,7 @@ void CameraCapabilities::computeHwLevel(
>>          hwLevel_ = hwLevel;
>>   }
>>
>> -int CameraCapabilities::initialize(std::shared_ptr<libcamera::Camera> camera,
>> +int CameraCapabilities::initialize(std::shared_ptr<Camera> camera,
>>                                     int orientation, int facing)
>>   {
>>          camera_ = camera;
>> @@ -429,7 +429,7 @@ CameraCapabilities::initializeYUVResolutions(const PixelFormat &pixelFormat,
>>   }
>>
>>   std::vector<Size>
>> -CameraCapabilities::initializeRawResolutions(const libcamera::PixelFormat &pixelFormat)
>> +CameraCapabilities::initializeRawResolutions(const PixelFormat &pixelFormat)
>>   {
>>          std::unique_ptr<CameraConfiguration> cameraConfig =
>>                  camera_->generateConfiguration({ StreamRole::Raw });
>> diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
>> index 8ca76719..d782067e 100644
>> --- a/src/android/camera_device.cpp
>> +++ b/src/android/camera_device.cpp
>> @@ -746,8 +746,8 @@ int CameraDevice::configureStreams(camera3_stream_configuration_t *stream_list)
>>   }
>>
>>   FrameBuffer *CameraDevice::createFrameBuffer(const buffer_handle_t camera3buffer,
>> -                                            libcamera::PixelFormat pixelFormat,
>> -                                            const libcamera::Size &size)
>> +                                            PixelFormat pixelFormat,
>> +                                            const Size &size)
>>   {
>>          FileDescriptor fd;
>>          /*
>> @@ -1140,7 +1140,7 @@ void CameraDevice::requestComplete(Request *request)
>>          if (!resultMetadata) {
>>                  notifyError(descriptor.frameNumber_, nullptr, CAMERA3_MSG_ERROR_RESULT);
>>
>> -               /* The camera framework expects an empy metadata pack on error. */
>> +               /* The camera framework expects an empty metadata pack on error. */
>>                  resultMetadata = std::make_unique<CameraMetadata>(0, 0);
>>          }
>>
>> diff --git a/src/android/camera_stream.cpp b/src/android/camera_stream.cpp
>> index 01909ec7..0f5ae947 100644
>> --- a/src/android/camera_stream.cpp
>> +++ b/src/android/camera_stream.cpp
>> @@ -98,7 +98,7 @@ int CameraStream::configure()
>>          return 0;
>>   }
>>
>> -int CameraStream::process(const libcamera::FrameBuffer &source,
>> +int CameraStream::process(const FrameBuffer &source,
>>                            buffer_handle_t camera3Dest,
>>                            const CameraMetadata &requestMetadata,
>>                            CameraMetadata *resultMetadata)
>> @@ -139,7 +139,7 @@ FrameBuffer *CameraStream::getBuffer()
>>          return buffer;
>>   }
>>
>> -void CameraStream::putBuffer(libcamera::FrameBuffer *buffer)
>> +void CameraStream::putBuffer(FrameBuffer *buffer)
>>   {
>>          if (!allocator_)
>>                  return;
>> diff --git a/src/android/camera_worker.cpp b/src/android/camera_worker.cpp
>> index 98dddd9e..91313183 100644
>> --- a/src/android/camera_worker.cpp
>> +++ b/src/android/camera_worker.cpp
>> @@ -27,7 +27,7 @@ LOG_DECLARE_CATEGORY(HAL)
>>    * by the CameraWorker which queues it to the libcamera::Camera after handling
>>    * fences.
>>    */
>> -CaptureRequest::CaptureRequest(libcamera::Camera *camera)
>> +CaptureRequest::CaptureRequest(Camera *camera)
>>          : camera_(camera)
>>   {
>>          request_ = camera_->createRequest(reinterpret_cast<uint64_t>(this));
>> diff --git a/src/android/mm/cros_camera_buffer.cpp b/src/android/mm/cros_camera_buffer.cpp
>> index 44993379..ec45e04c 100644
>> --- a/src/android/mm/cros_camera_buffer.cpp
>> +++ b/src/android/mm/cros_camera_buffer.cpp
>> @@ -21,7 +21,7 @@ class CameraBuffer::Private : public Extensible::Private
>>
>>   public:
>>          Private(CameraBuffer *cameraBuffer, buffer_handle_t camera3Buffer,
>> -               libcamera::PixelFormat pixelFormat, const libcamera::Size &size,
>> +               PixelFormat pixelFormat, const Size &size,
>>                  int flags);
>>          ~Private();
>>
>> @@ -53,8 +53,8 @@ private:
>>
>>   CameraBuffer::Private::Private([[maybe_unused]] CameraBuffer *cameraBuffer,
>>                                 buffer_handle_t camera3Buffer,
>> -                              [[maybe_unused]] libcamera::PixelFormat pixelFormat,
>> -                              [[maybe_unused]] const libcamera::Size &size,
>> +                              [[maybe_unused]] PixelFormat pixelFormat,
>> +                              [[maybe_unused]] const Size &size,
>>                                 [[maybe_unused]] int flags)
>>          : handle_(camera3Buffer), numPlanes_(0), mapped_(false),
>>            registered_(false)
>> diff --git a/src/android/mm/generic_camera_buffer.cpp b/src/android/mm/generic_camera_buffer.cpp
>> index 22efc4d4..27a30e2d 100644
>> --- a/src/android/mm/generic_camera_buffer.cpp
>> +++ b/src/android/mm/generic_camera_buffer.cpp
>> @@ -20,14 +20,13 @@ using namespace libcamera;
>>   LOG_DECLARE_CATEGORY(HAL)
>>
>>   class CameraBuffer::Private : public Extensible::Private,
>> -                             public libcamera::MappedBuffer
>> +                             public MappedBuffer
>>   {
>>          LIBCAMERA_DECLARE_PUBLIC(CameraBuffer)
>>
>>   public:
>>          Private(CameraBuffer *cameraBuffer, buffer_handle_t camera3Buffer,
>> -               libcamera::PixelFormat pixelFormat, const libcamera::Size &size,
>> -               int flags);
>> +               PixelFormat pixelFormat, const Size &size, int flags);
>>          ~Private();
>>
>>          unsigned int numPlanes() const;
>> @@ -58,13 +57,13 @@ private:
>>
>>   CameraBuffer::Private::Private([[maybe_unused]] CameraBuffer *cameraBuffer,
>>                                 buffer_handle_t camera3Buffer,
>> -                              libcamera::PixelFormat pixelFormat,
>> -                              const libcamera::Size &size, int flags)
>> +                              PixelFormat pixelFormat,
>> +                              const Size &size, int flags)
>>          : fd_(-1), flags_(flags), bufferLength_(-1), mapped_(false)
>>   {
>>          error_ = 0;
>>
>> -       const auto &info = libcamera::PixelFormatInfo::info(pixelFormat);
>> +       const auto &info = PixelFormatInfo::info(pixelFormat);
>>          if (!info.isValid()) {
>>                  error_ = -EINVAL;
>>                  LOG(HAL, Error) << "Invalid pixel format: "
>> --
>> 2.31.0
>>


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