From 09c1b081baa215874545eaa35b081be06fea25b6 Mon Sep 17 00:00:00 2001
From: Christian Rauch <Rauch.Christian@gmx.de>
Date: Tue, 2 Aug 2022 23:03:24 +0200
Subject: libcamera: controls: Generate and use fixed-sized Span types

Define Span types explicitly as either variable- or fixed-sized. This
introduces a new convention for defining Span dimensions in the property
and control value definitions and generates Span types as variable-sized
Span<T> or as fixed-sized Span<T,N>.

Signed-off-by: Christian Rauch <Rauch.Christian@gmx.de>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 src/ipa/raspberrypi/raspberrypi.cpp | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

(limited to 'src/ipa/raspberrypi')

diff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp
index 6befdd71..69c73f8c 100644
--- a/src/ipa/raspberrypi/raspberrypi.cpp
+++ b/src/ipa/raspberrypi/raspberrypi.cpp
@@ -567,18 +567,19 @@ void IPARPi::reportMetadata()
 
 	AwbStatus *awbStatus = rpiMetadata_.getLocked<AwbStatus>("awb.status");
 	if (awbStatus) {
-		libcameraMetadata_.set(controls::ColourGains, { static_cast<float>(awbStatus->gainR),
-								static_cast<float>(awbStatus->gainB) });
+		libcameraMetadata_.set(controls::ColourGains,
+				       Span<const float, 2>({ static_cast<float>(awbStatus->gainR),
+							      static_cast<float>(awbStatus->gainB) }));
 		libcameraMetadata_.set(controls::ColourTemperature, awbStatus->temperatureK);
 	}
 
 	BlackLevelStatus *blackLevelStatus = rpiMetadata_.getLocked<BlackLevelStatus>("black_level.status");
 	if (blackLevelStatus)
 		libcameraMetadata_.set(controls::SensorBlackLevels,
-				       { static_cast<int32_t>(blackLevelStatus->blackLevelR),
-					 static_cast<int32_t>(blackLevelStatus->blackLevelG),
-					 static_cast<int32_t>(blackLevelStatus->blackLevelG),
-					 static_cast<int32_t>(blackLevelStatus->blackLevelB) });
+				       Span<const int32_t, 4>({ static_cast<int32_t>(blackLevelStatus->blackLevelR),
+								static_cast<int32_t>(blackLevelStatus->blackLevelG),
+								static_cast<int32_t>(blackLevelStatus->blackLevelG),
+								static_cast<int32_t>(blackLevelStatus->blackLevelB) }));
 
 	FocusStatus *focusStatus = rpiMetadata_.getLocked<FocusStatus>("focus.status");
 	if (focusStatus && focusStatus->num == 12) {
@@ -883,7 +884,7 @@ void IPARPi::queueRequest(const ControlList &controls)
 			if (gains[0] != 0.0f && gains[1] != 0.0f)
 				/* A gain of 0.0f will switch back to auto mode. */
 				libcameraMetadata_.set(controls::ColourGains,
-						       { gains[0], gains[1] });
+						       Span<const float, 2>({ gains[0], gains[1] }));
 			break;
 		}
 
@@ -1167,8 +1168,8 @@ void IPARPi::applyFrameDurations(Duration minFrameDuration, Duration maxFrameDur
 
 	/* Return the validated limits via metadata. */
 	libcameraMetadata_.set(controls::FrameDurationLimits,
-			       { static_cast<int64_t>(minFrameDuration_.get<std::micro>()),
-				 static_cast<int64_t>(maxFrameDuration_.get<std::micro>()) });
+			       Span<const int64_t, 2>({ static_cast<int64_t>(minFrameDuration_.get<std::micro>()),
+							static_cast<int64_t>(maxFrameDuration_.get<std::micro>()) }));
 
 	/*
 	 * Calculate the maximum exposure time possible for the AGC to use.
-- 
cgit v1.2.1