[libcamera-devel] [RFC PATCH 06/14] android: Plumb AeEnable control

[Paul Elder]

Plumb the AeEnable control into the HAL for CONTROL_AE_AVAILABLE_MODES
for static metadata, and CONTROL_AE_MODE for result metadata.

Bug: https://bugs.libcamera.org/show_bug.cgi?id=42
Signed-off-by: Paul Elder <paul.elder at ideasonboard.com>
---
 src/android/camera_device.cpp | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
index 86f47e00..3446cdb6 100644
--- a/src/android/camera_device.cpp
+++ b/src/android/camera_device.cpp
@@ -10,6 +10,7 @@
 #include "camera_ops.h"
 #include "post_processor.h"
 
+#include <algorithm>
 #include <array>
 #include <cmath>
 #include <fstream>
@@ -877,9 +878,24 @@ const camera_metadata_t *CameraDevice::getStaticMetadata()
 	staticMetadata_->addEntry(ANDROID_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES,
 				  aeAvailableAntiBandingModes);
 
-	std::vector<uint8_t> aeAvailableModes = {
-		ANDROID_CONTROL_AE_MODE_ON,
-	};
+	std::vector<uint8_t> aeAvailableModes;
+	aeAvailableModes.reserve(2);
+	const auto &aeModesInfo = controlsInfo.find(&controls::AeEnable);
+	if (aeModesInfo != controlsInfo.end()) {
+		aeAvailableModes.push_back(aeModesInfo->second.min().get<bool>());
+		if (aeModesInfo->second.min() != aeModesInfo->second.max())
+			aeAvailableModes.push_back(aeModesInfo->second.max().get<bool>());
+	} else {
+		aeAvailableModes.push_back(ANDROID_CONTROL_AE_MODE_ON);
+	}
+
+	if (std::find(aeAvailableModes.begin(),
+		      aeAvailableModes.end(),
+		      ANDROID_CONTROL_AE_MODE_OFF) == aeAvailableModes.end()) {
+		fullSupport = false;
+		/* \todo Double check if this is the correct capability */
+		capabilities[ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR] = false;
+	}
 	staticMetadata_->addEntry(ANDROID_CONTROL_AE_AVAILABLE_MODES,
 				  aeAvailableModes);
 
@@ -2333,8 +2349,10 @@ CameraDevice::getResultMetadata(const Camera3RequestDescriptor &descriptor) cons
 	value = ANDROID_CONTROL_AE_LOCK_OFF;
 	resultMetadata->addEntry(ANDROID_CONTROL_AE_LOCK, value);
 
-	value = ANDROID_CONTROL_AE_MODE_ON;
-	resultMetadata->addEntry(ANDROID_CONTROL_AE_MODE, value);
+	if (metadata.contains(controls::AeEnable)) {
+		uint8_t aeMode = metadata.get<bool>(controls::AeEnable);
+		resultMetadata->addEntry(ANDROID_CONTROL_AE_MODE, aeMode);
+	}
 
 	if (settings.getEntry(ANDROID_CONTROL_AE_TARGET_FPS_RANGE, &entry))
 		/*
-- 
2.27.0