qcam: Replace MappedBuffer with Span<uint8_t>

The MappedBuffer structure is a custom container that binds a data
pointer with a length. This is exactly what Span is. Use it instead.

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>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/qcam/viewfinder_qt.cpp b/src/qcam/viewfinder_qt.cpp
index e436714c..efa1d412 100644
--- a/src/qcam/viewfinder_qt.cpp
+++ b/src/qcam/viewfinder_qt.cpp
@@ -78,14 +78,15 @@ int ViewFinderQt::setFormat(const libcamera::PixelFormat &format,
 	return 0;
 }
 
-void ViewFinderQt::render(libcamera::FrameBuffer *buffer, MappedBuffer *map)
+void ViewFinderQt::render(libcamera::FrameBuffer *buffer,
+			  libcamera::Span<uint8_t> mem)
 {
 	if (buffer->planes().size() != 1) {
 		qWarning() << "Multi-planar buffers are not supported";
 		return;
 	}
 
-	unsigned char *memory = static_cast<unsigned char *>(map->memory);
+	unsigned char *memory = mem.data();
 	size_t size = buffer->metadata().planes[0].bytesused;
 
 	{