libcamera: rkisp1: Add support for Transform

Add support for Transform to the RkISP1 pipeline handler.

The pipeline rotates using the sensor's V/H flips, hence use the
CameraSensor helpers to handle transformation requests from
applications.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
index 5bdb4d25..5f22a29d 100644
--- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
+++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
@@ -25,6 +25,7 @@
 #include <libcamera/framebuffer.h>
 #include <libcamera/request.h>
 #include <libcamera/stream.h>
+#include <libcamera/transform.h>
 
 #include <libcamera/ipa/core_ipa_interface.h>
 #include <libcamera/ipa/rkisp1_ipa_interface.h>
@@ -470,17 +471,17 @@ CameraConfiguration::Status RkISP1CameraConfiguration::validate()
 
 	status = validateColorSpaces(ColorSpaceFlag::StreamsShareColorSpace);
 
-	if (transform != Transform::Identity) {
-		transform = Transform::Identity;
-		status = Adjusted;
-	}
-
 	/* Cap the number of entries to the available streams. */
 	if (config_.size() > pathCount) {
 		config_.resize(pathCount);
 		status = Adjusted;
 	}
 
+	Transform requestedTransform = transform;
+	Transform combined = sensor->validateTransform(&transform);
+	if (transform != requestedTransform)
+		status = Adjusted;
+
 	/*
 	 * Simultaneous capture of raw and processed streams isn't possible. If
 	 * there is any raw stream, cap the number of streams to one.
@@ -590,6 +591,8 @@ CameraConfiguration::Status RkISP1CameraConfiguration::validate()
 	if (sensorFormat_.size.isNull())
 		sensorFormat_.size = sensor->resolution();
 
+	sensorFormat_.transform = combined;
+
 	return status;
 }