libcamera: base: utils: Implement hex() for 8-bit and 16-bit values

The utils::hex() function is implemented for 32-bit and 64-bit integers,
but not for 8-bit and 16-bit. This causes a link error (possibly at
runtime for IPA modules due to lazy linking) when trying to print 8-bit
or 16-bit integers. Implement additional specializations to fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/include/libcamera/base/utils.h b/include/libcamera/base/utils.h
index 4ae02dc9..734ff81e 100644
--- a/include/libcamera/base/utils.h
+++ b/include/libcamera/base/utils.h
@@ -91,6 +91,30 @@ _hex hex(T value, unsigned int width = 0);
 
 #ifndef __DOXYGEN__
 template<>
+inline _hex hex<int8_t>(int8_t value, unsigned int width)
+{
+	return { static_cast<uint64_t>(value), width ? width : 2 };
+}
+
+template<>
+inline _hex hex<uint8_t>(uint8_t value, unsigned int width)
+{
+	return { static_cast<uint64_t>(value), width ? width : 2 };
+}
+
+template<>
+inline _hex hex<int16_t>(int16_t value, unsigned int width)
+{
+	return { static_cast<uint64_t>(value), width ? width : 4 };
+}
+
+template<>
+inline _hex hex<uint16_t>(uint16_t value, unsigned int width)
+{
+	return { static_cast<uint64_t>(value), width ? width : 4 };
+}
+
+template<>
 inline _hex hex<int32_t>(int32_t value, unsigned int width)
 {
 	return { static_cast<uint64_t>(value), width ? width : 8 };