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2020-11-17android: jpeg: Use LGPL-2.1 license for post_processor_jpeg.cppLaurent Pinchart
The JPEG post-processor is marked as licensed under GPL-2.0-or-later. This is an oversight and unvoluntary. License it under the LGPL-2.1-or-later as the rest of the camera HAL implementation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Umang Jain <email@uajain.com> Acked-by: Hirokazu Honda <hiroh@chromium.org>
2020-11-16ipa: raspberrypi: Use MappedFrameBuffer for the IPA buffersNaushir Patuck
Instead of directly mmaping/unmapping buffers passed to the IPA, use a MappedFrameBuffer. The latter is a cleaner interface, and avoid code duplication. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-11-16pipeline: raspberrypi: Use MappedFrameBuffer for embedded data buffersNaushir Patuck
Use a MappedFrameBuffer to mmap embedded data buffers for the pipeline handler to use in the cases where the sensor does not fill it in. This avoids the need to mmap and unmap on every frame. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-11-16libcamera: pipeline: simple: Reset format on capture side of converterLaurent Pinchart
When configuring the converter, the format is first set on the output side based on the format of the camera pipeline output, and then the format is set on the capture side to match the desired stream configuration. The format parameter passed to V4L2VideoDevice::setFormat() uses the same variable for both calls, which has the unwanted side effect of carrying plane configuration from the output side to the capture side of the converter. In particular, the stride or plane size requested on the capture side can become unnecessarily large when converting to a format with a lower number of bits per pixel (for instance converting YUYV to NV12). Fix this by resetting the format variable before using it to configure the capture side. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-11-15cam: Move request processing to main threadLaurent Pinchart
The request completion handler is invoked in the camera manager thread, which shouldn't be blocked for large amounts of time. As writing the frames to disk can be a time-consuming process, move request processing to the main thread by queueing an event to the event loop. 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>
2020-11-15cam: event_loop: Add deferred calls supportLaurent Pinchart
Add a deferred cals queue to the EventLoop class to support queuing calls from a different thread and processing them in the event loop's thread. 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>
2020-11-15libcamera: Move EventDispatcher to internal APILaurent Pinchart
There's no user of the EventDispatcher (and the related EventNotifier and Timer classes) outside of libcamera. Move those classes to the internal API. 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>
2020-11-15cam: Use libevent to implement event loopLaurent Pinchart
To prepare for removal of the EventDispatcher from the libcamera public API, switch to libevent to handle the event loop. 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>
2020-11-15test: Get event dispatcher from current threadLaurent Pinchart
Get the event dispatcher from the current thread instead of the camera manager. This prepares for the removal of CameraManager::eventDispatcher(). 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>
2020-11-13qcam: Clear the pool of free requests upon stopCapture()Paul Elder
To enable reusing Request objects, we kept a pool of free Requests. This pool was not cleared upon stopping capture, however, which caused a segfault when switching to another camera. Fix this by clearing the Request pool on stopCapture(). Fixes: c753223ad6b9 ("libcamera, android, cam, gstreamer, qcam, v4l2: Reuse Request") Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
2020-11-11libcamera: Update dep5 to specify license for mojoPaul Elder
Add licensing information for mojo in dep5. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-11-11README, meson: Add dependency on ply and jinja2 for IPA interface generationPaul Elder
Specify in the readme and meson file that we depend on python3-ply and python3-jinja2 for generating the IPA interface. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-11-11utils: ipc: import mojoPaul Elder
Import mojo from the Chromium repository, so that we can use it for generating code for the IPC mechanism. The commit from which this was taken is: a079161ec8c6907b883f9cb84fc8c4e7896cb1d0 "Add PPAPI constructs for sending focus object to PdfAccessibilityTree" This tree has been pruned to remove directories that didn't have any necessary code: - mojo/* except for mojo/public - mojo core, docs, and misc files - mojo/public/* except for mojo/public/{tools,LICENSE} - language bindings for IPC, tests, and some mojo internals - mojo/public/tools/{fuzzers,chrome_ipc} - mojo/public/tools/bindings/generators - code generation for other languages No files were modified. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-11-10libcamera: v4l2_device: Move start of frame detection to V4L2DeviceNiklas Söderlund
The V4L2_EVENT_FRAME_SYNC event may occur on both V4L2 video-devices (V4L2VideoDevice) and sub-devices (V4L2Subdevice). Move the start of frame detection to the common base class of the two, V4L2Device. There is no functional change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-11-08libcamera: camera: Inherit from ExtensibleLaurent Pinchart
Use the d-pointer infrastructure offered by the Extensible class to replace the custom implementation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-08libcamera: camera_manager: Inherit from ExtensibleLaurent Pinchart
Use the d-pointer infrastructure offered by the Extensible class to replace the custom implementation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-08libcamera: Add a base class to implement the d-pointer design patternLaurent Pinchart
The d-pointer design patterns helps creating public classes that can be extended without breaking their ABI. To facilitate usage of the pattern in libcamera, create a base Extensible class with associated macros. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-11-08utils: checkstyle.py: Add d-pointer formatterLaurent Pinchart
Add a formatter to ensure consistent naming of 'd' and 'o' variables related to the d-pointer design pattern, as implemented by the Extensible class. The formatter also ensures that the pointer is always const. const-correctness issues related to the data pointed to will be caught by the compiler, and thus don't need to be checked here. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07gstreamer: libcamerasrc: Delete configuration before stopping camera managerLaurent Pinchart
When closing the libcamerasrc, the reference to camera is released and the camera manager is stopped. However, the camera configuration still exists at that point, and holds a reference to the camera. This leads to a warning from the device enumerator complaining that the media devices are still in use: [1:53:48.792327560] [408] ERROR DeviceEnumerator device_enumerator.cpp:165 Removing media device /dev/media1 while still in use [1:53:48.792354022] [408] ERROR DeviceEnumerator device_enumerator.cpp:165 Removing media device /dev/media0 while still in use A crash follows when the libcamerasrc is finalized, as deleting the camera configuration will then release the last reference to the camera, which attempts to delete the camera object with deleteLater() without an event dispatcher. Fix it by deleting the camera configuration before stopping the camera manager. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
2020-11-07libcamera: Drop unnecessary explicit initialization of V4L2DeviceFormatLaurent Pinchart
The V4L2DeviceFormat class now has default initializers for all members, explicit initialization isn't needed anymore. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07libcamera: v4l2_videodevice: Check plane count when setting formatLaurent Pinchart
When setting (or trying) a format with a multiplanar device, the V4L2VideoDevice::trySetFormatMeta() function iterates over all planes available in the V4L2DeviceFormat structure. The caller is responsible for setting the plane count, and failure to do so properly may result in memory corruption. This can lead to a crash way after the function returns, making the problem difficult to debug. As the issue is caused by a bug in the caller, use an assertion to catch it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-11-07libcamera: v4l2_videodevice: Zero-initialize planes in V4L2DeviceFormatLaurent Pinchart
The V4L2DeviceFormat class doesn't have a default constructor, neither does it specifies default member initializers for the plane-related members. This results in the planes array and planesCount members being uninitialized by default, leading to undefined behaviour if the user of the class doesn't initialize it explicitly. Most users initialize V4L2DeviceFormat instances, but some don't. We could fix them, but that would likely turn into a game of whack-a-mole. As there's no use case for instantiating a large number of V4L2DeviceFormat instances in a performance-critical code path, let's instead add default initializers to avoid future issues. While at it, define a type of the structures containing plane information, and use an std::array. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07qcam: viewfinder_gl: Add support for RGB formatsLaurent Pinchart
Add support for 24-bit and 32-bit RGB formats. The fragment samples the texture and reorders the components, using a pattern set through the RGB_PATTERN macro. The pattern stores the shader vec4 element indices (named {r, g, b, a} by convention, for elements 0 to 3) to be extracted from the texture samples, when interpreted by OpenGL as RGBA. Note that, as textures are created with GL_UNSIGNED_BYTE, the RGBA order corresponds to bytes in memory, while the libcamera formats are named based on the components order in a 32-bit word stored in memory in little endian format. An alternative to manual reordering in the shader would be to set the texture swizzling mask. This is however not available in OpenGL ES before version 3.0, which we don't mandate at the moment. Only the BGR888 and RGB888 formats have been tested, with the vimc pipeline handler. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07qcam: viewfinder_gl: Store textures in an arrayLaurent Pinchart
In preparation for RGB formats support, store the three Y, U and V textures in an array. This makes the code more generic, and will avoid referring to an RGB texture as textureY_. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07qcam: viewfinder_gl: Rename yuvData_ to data_Laurent Pinchart
In preparation for RGB formats support, rename the pointer to image data from yuvData_ to data_. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07qcam: viewfinder_gl: Rename YUV.vert to identity.vertLaurent Pinchart
In preparation for RGB formats support, rename the identity vertex shader from YUV.vert to identity.vert. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07qcam: viewfinder_gl: Remove unneeded castsLaurent Pinchart
There's no need to cast the yuvData_ unsigned char pointer to a char pointer before performing pointer arithmetics. Drop the unneeded casts. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07qcam: viewfinder_gl: Keep fragment shader when format doesn't changeLaurent Pinchart
When ViewFinderGL::setFormat() is called, the fragment shader is deleted and recreated for the new format. This results in unnecessary shader recompilation if only the size is changed and the pixel format remains the same. Keep the existing shader in that case. The null test for fragmentShader_ can be removed, as if the shader program is linked, the fragment shader is guaranteed to exist. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-11-07qcam: viewfinder_gl: Fix fragment shader rebuild when setting formatLaurent Pinchart
When setting a new format, the existing fragment shader is deleted and a new shader should be created. However, the shader pointer isn't set to nullptr after deleting it, resulting in the deleter shader being reused. Fix it by managing shader pointers with std::unique_ptr<> to prevent similar bugs from happening in the future. 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>
2020-11-05tracepoints: Add SPDX headers and copyright noticesPaul Elder
Add SPDX headers and copyright notices to the tracepoints definition files. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-11-03Documentation: tracing: Add tracing guidePaul Elder
Add guide for tracepoints, including how to define and use them. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-11-03utils: tracepoints: Add simple statistics scriptPaul Elder
Add a script that scans a trace for IPA call tracepoints, and returns statistics on the time taken for IPA calls. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-11-03libcamera: request: Add tracepointsPaul Elder
Add and use tracepoints in Request. Requests are core to libcamera operation, thus detecting delays in their processing is important, and serves as a good usage example of tracepoints. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-11-03libcamera: tracing: Implement tracing infrastructurePaul Elder
Implement tracing infrastructure in libcamera. It takes .tp files, as required by lttng, and generates a tracepoint header and C file, as lttng requires. meson is updated accordingly to get it to compile with the rest of libcamera. Update the documentation accordingly. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-11-02utils: hooks: pre-push: Reject commits with a Change-IdLaurent Pinchart
We're not using gerrit, so let's prevent Change-Id tags creeping in unadvertently. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-30libcamera: ipa_manager: Fix typo in descriptionSebastian Fricke
The class IPAManager has no method ipaCreate, but the method createIPA. s/pipeline handlers call the IPAManager::ipaCreate() /pipeline handlers call the IPAManager::createIPA() Signed-off-by: Sebastian Fricke <sebastian.fricke.linux@gmail.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-28android: jpeg: post_processor_jpeg: Embed thumbnail into Exif metadataUmang Jain
Embed a Jpeg-encoded thumbnail into Exif metadata using the Thumbnailer class that got introduced. Introduce a helper function in Exif class for setting the thumbnail data. Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> [Kieran: Add todo comment, and Compression enum] Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-28android: jpeg: Introduce a simple image thumbnailerUmang Jain
Add a basic image Thumbnailer class for the frames being captured. Currently, the thumbnailer can scale NV12 frames. It shall be used to generate a thumbnail image for EXIF metadata, in the subsequent commit. Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-28android: jpeg: encoder_libjpeg: Allow encoding raw frame bytesUmang Jain
Allow encoding frames which are directly handed over to the encoder via a span or vector i.e. a raw frame bytes. Introduce an overloaded EncoderLibJpeg::encode() with libcamera::Span source parameter to achieve this functionality. This makes the libjpeg-encoder a bit flexible for use case such as compressing a thumbnail generated for Exif. Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-28android: camera_device: Mark toPixelFormat() a const functionHirokazu Honda
CameraDevice::toPixelFormat() doesn't change the state of the CameraDevice. Marks it a const function so that it can be called in const functions. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-28android: camera_device: Fix crash of accessing a missing map elementHirokazu Honda
std::map::at() searches std::map by the given key. The commit e1f9fdb8a5bd ("android: camera_device: Remove shadowing FrameBuffer usage") uses it with 0 to intend to accessing the first element of the map, but actually access the element whose key is nullptr. This causes the crash because the map doesn't have the element with nullptr. This fixes the issue by replacing the std::map::at() operation by std::map::begin(). Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> [Kieran: Updated commit message] Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-28libcamera: v4l2_device: Remove unused set of retNiklas Söderlund
The last assignment of the ret variable in getControls() is not consumed so it's unnecessary to set it. This likely originates from a similar code flow in setControls() where the ret variable is later consumed. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-28libcamera: camera_manager: Make CameraManager::Private::mutex_ mutableLaurent Pinchart
The mutex_ stored in the CameraManager::Private class is used to protect members that may need to be accessed from const functions. Make it mutable to allow this. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2020-10-28libcamera: span: Provide and use helper variable templates for type traitsLaurent Pinchart
Following the C++17 practice, provide is_array_v<T> and is_span_v<T> helper variable templates as shorter versions of is_array<T>::value and is_span<T>::value, and use them through the code. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-28libcamera: Use helper variable template for type traitsLaurent Pinchart
C++17 introduces helper variable templates for type traits, allowing shortening std::is_foo<T>::value to std::is_foo_v<T>. Use them through the code base. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-27libcamera: pipeline: simple: Only connect created convertersKieran Bingham
If converter_->open() fails, the code deletes the converter_ but then happily goes on, and at the very next lines will use converter_ to connect the bufferReady signal. Ensure the converter is only connected when successfully opened by extending the conditional and connecting in an else scope instead. Reported-by: Tomi Valkeinen <tomi.valkeinen@iki.fi> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-27pipeline: raspberrypi: return an error if setFormat() failsTomi Valkeinen
The method calls setFormat(), stores the return value, but then does not do anything with the return value. I presume it is meant to fail and return the error. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@iki.fi> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-27Add .clang-tidyTomi Valkeinen
Having .clang-tidy file will give us a 'clang-tidy' meson build target, so doing a full clang-tidy run can be done just by: ninja -C build clang-tidy I did not look at if more checks should be enabled or not. I disabled clang-diagnostic-c99-designator as that feature was used in the code, and I see no harm with the feature. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@iki.fi> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-27libcamera: pipeline: raspberrypi: Implementation of digital zoomDavid Plowman
During configure() we update the ScalerCropMaximum to the correct value for this camera mode and work out the minimum crop size allowed by the ISP. Whenever a new ScalerCrop request is received we check it's valid and apply it to the ISP V4L2 device. When the IPA returns its metadata to us we add the ScalerCrop information, rescaled to sensor native pixels. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-27test: geometry: Add unit tests for new geometry helper functionsDavid Plowman
Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>