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author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-03-23 02:34:36 +0200 |
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committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-03-24 10:34:08 +0200 |
commit | 5816c0c38e2a7dce1bcbf88f9fdcc330358eea8d (patch) | |
tree | adde4d8b21ea218f3d7e6500e8a9dc1fe6376600 /test/camera/configuration_default.cpp | |
parent | ac828f937e5426d48f996a29e70ff1a6ab5c85e6 (diff) |
qcam: viewfinder: Avoid memory copy when conversion isn't needed
If the frame buffer format is identical to the display format, the
viewfinder still invokes the converter to perform what is essentially a
slow memcpy(). Make it possible to skip that operation by creating a
QImage referencing the buffer memory instead. A reference to the frame
buffer is kept internally, and released when the next buffer is queued,
pushing the current one out.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'test/camera/configuration_default.cpp')
0 files changed, 0 insertions, 0 deletions