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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>
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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>
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The shader supports all 4 packed 8-bit YUV variants.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Use macros to select the U and V pattern, to avoid code duplication
between the two semi-planar shaders.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Rename shader files to prepare for packed YUYV support:
- The NV prefix isn't a good match for packed (or for 3-planar) formats,
replace it with a YUV prefix
- Use .frag and .vert extensions to differentiate between fragment and
vertex shaders
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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There's no need to prefix files in the local directory with './'. Drop
it.
While at it, add indentation to make the *.qrc files more readable.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add OpenGL fragment and vertex shaders to convert two- and tri-planar
YUV formats to RGB. This will be used to accelerate YUV image rendering.
Signed-off-by: Show Liu <show.liu@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Specify the license of the Feather icons files in the .reuse/dep5 file.
Technically speaking the SVG format supports comments, SPDX could thus
be used, but that would be impractical both due to the large number of
files, and the fact that they would then diverge from the upstream
project.
We can remove the README.md file, as it now only contains redundant or
incorrect information: the license and project URL are contained in the
DEP5 file, and the comment related to generation of the GRC file is
outdated as the file is now manually edited to only include the icons
that we need.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add missing SPDX headers to miscellaneous small files. Use CC0-1.0 for
meson.build, .gitignore and the small include/linux/README, and licenses
matching the corresponding component for other files.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add a toolbar button that captures RAW data to disk. The button is only
enabled if the camera is configured to provide a raw stream to the
application.
Only when the capture action is triggered will a request with a raw
buffer be queued to the camera.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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When stopping capture, display an icon instead of the last frame. This
is required to be able to release the last buffer when the viewfinder
operators in zero-copy mode.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Implement a save image button on the toolbar which will take a current
viewfinder image and present the user with a QFileDialog to allow them
to choose where to save the image.
Utilise the QImageWriter to perform the output task.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Provide Quit, Play, Stop icons.
Create a Qt resource to compile icons into the binary and present them
on the toolbar.
Update the Quit button with a 'cross', and implement Play/Stop buttons.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Provide simple clean icons from https://feathericons.com/
(https://github.com/feathericons/feather)
These are provided under the MIT license.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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