From 3067203325a8bd7831e24c71fdc4322cde03c715 Mon Sep 17 00:00:00 2001 From: Kieran Bingham Date: Tue, 15 Mar 2022 16:11:34 +0000 Subject: ipa: ipu3: af: Use geometry classes to perform grid centering Use our geometry classes for Rectangle, Size and Point to identify the region of interest for the autofocus, and center it on the BDS output. This will facilitate custom ROI being passed in through controls at a later time. Reviewed-by: Laurent Pinchart Reviewed-by: Jean-Michel Hautbois Tested-by: Jean-Michel Hautbois Tested-by: Kate Hsuan Signed-off-by: Kieran Bingham --- src/ipa/ipu3/algorithms/af.cpp | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) (limited to 'src') diff --git a/src/ipa/ipu3/algorithms/af.cpp b/src/ipa/ipu3/algorithms/af.cpp index 2902f2d5..b96078f5 100644 --- a/src/ipa/ipu3/algorithms/af.cpp +++ b/src/ipa/ipu3/algorithms/af.cpp @@ -160,16 +160,23 @@ int Af::configure(IPAContext &context, const IPAConfigInfo &configInfo) grid.height_per_slice = kAfDefaultHeightPerSlice; - /* x_start and y start are default to BDS center */ - grid.x_start = (configInfo.bdsOutputSize.width / 2) - - (((grid.width << grid.block_width_log2) / 2)); - grid.y_start = (configInfo.bdsOutputSize.height / 2) - - (((grid.height << grid.block_height_log2) / 2)); + /* Position the AF grid in the center of the BDS output. */ + Rectangle bds(configInfo.bdsOutputSize); + Size gridSize(grid.width << grid.block_width_log2, + grid.height << grid.block_height_log2); + + /* + * \todo - Support request metadata + * - Set the ROI based on any input controls in the request + * - Return the AF ROI as metadata in the Request + */ + Rectangle roi = gridSize.centeredTo(bds.center()); + Point start = roi.topLeft(); /* x_start and y_start should be even */ - grid.x_start = (grid.x_start / 2) * 2; - grid.y_start = (grid.y_start / 2) * 2; - grid.y_start = grid.y_start | IPU3_UAPI_GRID_Y_START_EN; + grid.x_start = utils::alignDown(start.x, 2); + grid.y_start = utils::alignDown(start.y, 2); + grid.y_start |= IPU3_UAPI_GRID_Y_START_EN; /* Initial max focus step */ maxStep_ = kMaxFocusSteps; -- cgit v1.2.1