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path: root/include/libcamera/framebuffer.h
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2021-09-07libcamera: framebuffer: Prevent modifying the number of metadata planesLaurent Pinchart
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>
2021-09-07libcamera: framebuffer: Move planes check to constructorLaurent Pinchart
The FrameBuffer::planes() function checks that planes are correctly initialized with an offset. This can be done at construction time instead, as the planes are constant. The backtrace generated by the assertion will show where the faulty frame buffer is created instead of where it is used, easing debugging. As the runtime overhead is reduced, there's no real need to drop the assertion in the future anymore, it can be useful to ensure that the planes are correctly populated by the caller. Drop the comment that calls for removing the check. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
2021-08-30libcamera: framebuffer: Add assertion to detect offset is unfilledHirokazu Honda
The offset variable is introduced to FrameBuffer::Plane. In order to detect that the plane is used while the offset is not set, this adds the assertion to FrameBuffer::planes(). It should be removed in the future. 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>
2021-08-30libcamera: framebuffer: Add offset to FrameBuffer::PlaneHirokazu Honda
This adds offset to FrameBuffer::Plane. It enables representing frame buffers that store planes in the same dmabuf at different offsets, as for instance required by the V4L2 NV12 pixel format. 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>
2021-07-12libcamera: framebuffer: Make FrameBuffer class ExtensibleLaurent Pinchart
Implement the D-Pointer design pattern in the FrameBuffer class to allow changing internal data without affecting the public ABI. Move the request_ field and the setRequest() function to the FrameBuffer::Private class. This allows hiding the setRequest() function from the public API, removing one todo item. More fields may be moved later. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-07-11libcamera: buffer: Rename buffer.h to framebuffer.hLaurent Pinchart
libcamera names header files based on the classes they define. The buffer.h file is an exception. Rename it to framebuffer.h. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>