| Age | Commit message (Collapse) | Author |
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Add support for color space to the StreamKeyValueParser, allowing
selection of a color space on the command line.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The libcamera public API uses 'stride' to refer to the line stride.
Rename the SDLTexture::pitch_ member variable for consistency.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The KMS sink currently displays the frame buffer on the top-left corner
of the screen, resulting in either a black area on the bottom and right
sides (if the frame buffer is smaller than the display resolution) of in
a restricted field of view (if the frame buffer is larger than the
display resolution). Improve this by scaling the frame buffer to full
screen if supported, and aligning the crop rectangle to the frame buffer
center if the field of view needs to be restricted.
The implementation test for possible composition options, from best to
worst. The tests are performed when the camera is started, as testing
atomic commits requires access to frame buffer objects, which are not
available at configure time. Changing this would require either a large
refactoring of the cam application to provide frame buffers earlier, or
extending the KMS API to support testing commits with dummy buffer
objects. Both are candidates for later development.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The drmRequest is KMSSink::processRequest() is created as a naked
pointer, passed to the constructor of the KMSSink::Request object that
stores it in a std::unique_ptr<>, and used later in the function. The
current implementation is safe, but could be prone to both memory leaks
and use-after-free bugs if modified. Improve it by replacing the naked
pointer with a std::unique_ptr<>.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Test-only commits are used to test a commit without applying any
modification to the device. This will be used by the KMS sink to test
feature support.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The SDL_UpdateNVTexture() function, used for NV12 texture support, has
been introduced in SDL2 2.0.16. Compiling against older SDL versions
fails with
../src/cam/sdl_texture_yuv.cpp: In member function ‘virtual void SDLTextureNV12::update(const std::vector<libcamera::Span<const unsigned char> >&)’:
../src/cam/sdl_texture_yuv.cpp:19:2: error: ‘SDL_UpdateNVTexture’ was not declared in this scope; did you mean ‘SDL_UpdateYUVTexture’?
19 | SDL_UpdateNVTexture(ptr_, &rect_, data[0].data(), pitch_,
| ^~~~~~~~~~~~~~~~~~~
| SDL_UpdateYUVTexture
Fix it with conditional compilation based on the SDL version.
Fixes: 7b8df9fe6b3e ("cam: sdl_sink: Add NV12 texture support")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
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Extend the SDL sink with support for NV12 textures, useful on platforms
that don't support packed YUYV formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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In order to prepare for NV12 support, implement support for multi-planar
formats in the SDL sink. This mainly consists in passing a vector of
plane data to the SDLTexture::update() function instead of a single
value.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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In preparation for the addition of NV12 support in the SDL sink, rename
the sdl_texture_yuyv.{cpp,h} files to just "yuv". Separate
sdl_texture_nv12.{cpp,h} files could be added instead, but given how
short the implementation will be, grouping all YUV formats in a single
file is better.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The line stride of the texture is currently hardcoded based on the image
width, which may not match the real stride. Use the stride value from
the stream configuration instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The SDLTexture::update() function isn't meant to modify the data it
receives. Make the Span type const to ensure this at compile time. While
at it, pass the Span by value instead of reference, as a Span is only a
pointer and size, which will fit in registers and will avoid pointer
dereferences in the callee.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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We were using the libjpeg functionality of SDL2_image only, instead just
use libjpeg directly to reduce our dependancy count, it is a more
commonly available library.
Signed-off-by: Eric Curtin <ecurtin@redhat.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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s/Raspberry Pi (Trading) Limited/Raspberry Pi Ltd/ to reflect the new
Raspberry Pi entity name.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Now that the ControlList::get() function returns an instance of
std::optional<>, we can replace the ControlList::contains() calls with a
nullopt check on the return value of get(). This avoids double lookups
of controls through the code base.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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Previously, ControlList::get<T>() would use default constructed objects to
indicate that a ControlList does not have the requested Control. This has
several disadvantages: 1) It requires types to be default constructible,
2) it does not differentiate between a default constructed object and an
object that happens to have the same state as a default constructed object.
std::optional<T> additionally stores the information if the object is valid
or not, and therefore is more expressive than a default constructed object.
Signed-off-by: Christian Rauch <Rauch.Christian@gmx.de>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The SDL_PixelFormatEnum type has been introduced in libsdl by
1a4c0d4e17e6 ("Fixed bug 4377 - SDL_PIXELFORMAT enum is anonymous, which
prevents its use in a templated function") which is only available after
release 2.0.10 of the library.
Debian 10 ships libsdl at version 2.0.9 and building cam with sdl
support there fails with error:
./src/cam/sdl_texture.h:27:8: error: ‘SDL_PixelFormatEnum’ does not name
a type; did you mean ‘SDL_PixelFormat’?
Fix that by using the base type uint32_t in place of
SDL_PixelFormatEnum.
Reported-by: https://buildbot.libcamera.org/#/builders/6/builds/355
Fixes: 11554a259f4e ("cam: sdl_sink: Add SDL sink with initial YUYV support")
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
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There is a limitation that requires input and output to be pixel
for pixel identical in terms of height and width. Remove this
limitation to enable more hardware that doesn't match. Just start
drawing from top left 0, 0 corner.
Signed-off-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Eric Curtin <ecurtin@redhat.com>
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Existing code is hardcoded to card0. Since recent fedora upgrades, we
have noticed on more than one machine that card1 is present as the
lowest numbered device, could theoretically be higher. This technique
tries every file starting with card and continue only when we have
successfully opened one. These devices with card1 as the lowest device
were simply failing when they do not see a /dev/dri/card0 file present.
Reported-by: Ian Mullins <imullins@redhat.com>
Tested-by: Ian Mullins <imullins@redhat.com>
Signed-off-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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So we have at least two supported capturing pixel formats (although
many possible output pixel formats thanks to SDL conversion). MJPG
support only built in if SDL2_image is available, provides
decompression.
Signed-off-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This adds more portability to existing cam sinks. You can pass a
YUYV camera buffer and SDL will handle the pixel buffer conversion
to the display. This allows cam reference implementation to display
images on VMs, Mac M1, Raspberry Pi, etc. This also enables cam
reference implementation, to run as a desktop application in Wayland or
X11. SDL also has support for Android and ChromeOS which has not been
tested. Also tested on simpledrm Raspberry Pi 4 framebuffer
successfully where existing kms sink did not work. Can also be used as
kmsdrm sink. Only supports one camera stream at present.
Signed-off-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Extend the EventLoop class to support periodic timer events. This can be
used to run tasks periodically, such as handling the event loop of SDL.
Signed-off-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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With the addition of addTimerEvent, the naming of addEvent is specific
to the management of an fd, while the naming is generic.
Update the name to make the naming scheme consistent in specifying the
type of event to be added.
Signed-off-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a "--script" option to the cam test application to allow specify a
capture script to be used to drive the capture session. Add to the
CameraSession class a script parser instance, created conditionally to
the OptCaptureScript option.
If the script parser has been created, use it at queueRequest time to
retrieve the list of controls that has to be associated with a Request,
and populate Request::controls() with it before queueing it to the
Camera.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The CameraSession::processRequest() frame completion handler currently
re-queues completed requests by calling Camera::queueRequests()
explicitely.
In order to maintain the CameraSession::queuedRequest_ counter up to
date with the actual number of queued requests, call the
CameraSession::queueRequest() instead of operating the Camera directly.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a parser class to the cam test application to control the capture
operations through a yaml script.
The capture script currently allow to specify a list of controls and
their associated values to be applied per-frame.
Also add a trivial capture script example to showcase the intended
script structure.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Now that format classes implement the stream formatting operator<<(),
use it instead of the toString() function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Now that geometry classes implement the stream formatting operator<<(),
use it instead of the toString() function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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One if...endif block is incorrectly indented. Fix it.
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>
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Use structured bindings range-based for loops for better readability.
Signed-off-by: Nejc Galof <galof.nejc@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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When searching for a suitable pipeline, we mistakenly only break from
the inner loop. This results in the last suitable output being selected.
Pick the first one instead.
Fixes: 1de0f90dd432 ("cam: kms_sink: Print display pipelineconfiguration")
Signed-off-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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For consistency with UniqueFD, rename the fd() function to get().
Renaming UniqueFD::get() to fd() would have been another option, but was
rejected to keep as close as possible to the std::shared_ptr<> and
std::unique_ptr<> APIs.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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Remove the verbose #ifndef/#define/#endif pattern for maintaining
header idempotency, and replace it with a simple #pragma once.
This simplifies the headers, and prevents redundant changes when
header files get moved.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
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"using namespace" in a header file propagates the namespace to
the files including the header file. So it should be avoided.
This removes "using namespace" in stream_options.h
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The camera session keeps requeuing requests until the capture limit is
reached. This causes more request than the limit to complete, as there's
a queue of requests in flight. When capturing from multiple cameras
concurrently, this results in the captureDone signal being emitted for
every request completion after the limit is reached, instead of once per
camera session when reaching the limit.
Fix this by simply dropping any request that completes after the limit
is reached. We could instead avoid requeuing more requests than needed
to reach the limit, but that may cause request starvation in pipelines,
which are currently not handled consistently (or correctly).
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The FileSink class constructs stream names internally the same way that
the CameraSession does, except that it fails to add the camera name.
This results in files being written without the camera name.
This could be fixed in FileSink, but we would still duplicate code to
construct stream names. Pass the stream names map from CameraSession to
FileSink instead, and store it internally.
Fixes: 02001fecb0f5 ("cam: Turn BufferWriter into a FrameSink")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The streamName_ map contains names for all streams, rename it to
streamNames_ to make this more explicit.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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It can be useful, for diagnosis purpose, to know what plane and CRTC the
KMS sink auto-selects. Print the display pipeline configuration at start
time.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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When creating a DRM frame buffer, the dmabufs for the planes are
imported as GEM objects. For multi-planar formats, all planes may use
the same dmabuf, which results in multiple imports. This doesn't cause
any issue at import time, as DRM detects this situation and returns the
same GEM object. However, when destroying the frame buffer, the same GEM
object ends up being closed multiple times, which generates an error.
Fix this by avoiding multiple imports of the same dmabuf for the same
frame buffer. While the issue may theoretically occur with identical
dmabufs for different frame buffers, this is quite unlikely and is thus
not addressed.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Now that libcamera supports per-plane offsets, pass the values to
drmModeAddFB2(). The KMS sink in cam is now capable of rendering
multi-planar formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The stride is not always identical for all planes for multi-planar
formats. Semi-planar YUV formats without horizontal subsampling often
have a chroma stride equal to twice the luma stride, and tri-planar YUV
formats with a 1/2 horizontal subsampling often have a chroma stride
equal to half the luma stride. This isn't correctly taken into account
when creating a DRM frame buffer, as the same stride is set for all
planes.
libcamera doesn't report per-plane stride values yet, but uses chroma
strides that match the above description for all currently supported
platforms. Calculation the chrome strides appropriately in the KMSSink
class, and pass them to DRM::createFrameBuffer().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Replace the manual implementation of frame buffer mapping with the Image
class to improve code sharing.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The new Image class represents a multi-planar image with direct access
to pixel data. It currently duplicates the function of the
MappedFrameBuffer class which is internal to libcamera, and will serve
as a design playground to improve the API until it is considered ready
to be made part of the libcamera public API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The number of metadata planes should always match the number of frame
buffer planes. Enforce this by making the vector private and providing
accessor functions.
As this changes the public API, update all in-tree users accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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This fixes the way of mapping FrameBuffer in FrameSink by
using offset.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Use the KMSSink class to display the viewfinder stream, if any, through
DRM/KMS. The output connector is selected through the new -D/--display
argument.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Not all display controllers support enabling the display without any
active plane. Delay display enabling to the first frame.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add a KMSSink class to display framebuffers through the DRM/KMS API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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To prepare for viewfinder operation through the DRM/KMS API, add a set
of helper classes that encapsulate the libdrm functions.
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>
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Rename the BufferWriter class to FileSink to establish a common naming
scheme for all sinks.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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Make the BufferWriter class inherit from FrameSink, and use the
FrameSink API to manage it. This makes the code more generic, and will
allow usage of other sinks.
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>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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