From 1c4d4801850559d6f919eef5c2ffbaf7675dbc46 Mon Sep 17 00:00:00 2001 From: Christian Rauch Date: Tue, 5 Jul 2022 10:55:48 +0100 Subject: libcamera: controls: Use std::optional to handle invalid control values Previously, ControlList::get() would use default constructed objects to indicate that a ControlList does not have the requested Control. This has several disadvantages: 1) It requires types to be default constructible, 2) it does not differentiate between a default constructed object and an object that happens to have the same state as a default constructed object. std::optional additionally stores the information if the object is valid or not, and therefore is more expressive than a default constructed object. Signed-off-by: Christian Rauch Reviewed-by: Jacopo Mondi Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- src/android/camera_capabilities.cpp | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'src/android/camera_capabilities.cpp') diff --git a/src/android/camera_capabilities.cpp b/src/android/camera_capabilities.cpp index 6f197eb8..5304b2da 100644 --- a/src/android/camera_capabilities.cpp +++ b/src/android/camera_capabilities.cpp @@ -1042,7 +1042,7 @@ int CameraCapabilities::initializeStaticMetadata() /* Sensor static metadata. */ std::array pixelArraySize; { - const Size &size = properties.get(properties::PixelArraySize); + const Size &size = properties.get(properties::PixelArraySize).value_or(Size{}); pixelArraySize[0] = size.width; pixelArraySize[1] = size.height; staticMetadata_->addEntry(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE, @@ -1050,10 +1050,10 @@ int CameraCapabilities::initializeStaticMetadata() } if (properties.contains(properties::UnitCellSize)) { - const Size &cellSize = properties.get(properties::UnitCellSize); + const auto &cellSize = properties.get(properties::UnitCellSize); std::array physicalSize{ - cellSize.width * pixelArraySize[0] / 1e6f, - cellSize.height * pixelArraySize[1] / 1e6f + cellSize->width * pixelArraySize[0] / 1e6f, + cellSize->height * pixelArraySize[1] / 1e6f }; staticMetadata_->addEntry(ANDROID_SENSOR_INFO_PHYSICAL_SIZE, physicalSize); @@ -1061,7 +1061,7 @@ int CameraCapabilities::initializeStaticMetadata() { const Span &rects = - properties.get(properties::PixelArrayActiveAreas); + properties.get(properties::PixelArrayActiveAreas).value_or(Span{}); std::vector data{ static_cast(rects[0].x), static_cast(rects[0].y), @@ -1080,7 +1080,7 @@ int CameraCapabilities::initializeStaticMetadata() /* Report the color filter arrangement if the camera reports it. */ if (properties.contains(properties::draft::ColorFilterArrangement)) { - uint8_t filterArr = properties.get(properties::draft::ColorFilterArrangement); + uint8_t filterArr = *properties.get(properties::draft::ColorFilterArrangement); staticMetadata_->addEntry(ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT, filterArr); } -- cgit v1.2.1