[libcamera-devel] [PATCH v2 1/4] libcamera: rkisp1: Generate config using main path

[Jacopo Mondi]

The generateConfiguration() implementation in the Rockchip RkISP1
pipeline handler uses by default the self path (if available) for
the Viewfinder and VideoRecording StreamRoles.

The validate() implementation, at the contrary, prefers using the main
path, when available, for all streams.

As the self-path is limited in output resolution to 1920x1920,
generating a configuration using the self path limits the maximum
stream size to 1920x1920, while higher resolutions can be obtained by
using the main path.

Align the generateConfiguration() implementation to the validate() one
by using the main path by default if available.

Bug: https://bugs.libcamera.org/show_bug.cgi?id=180
Reported-by: libcamera at luigi311.com
Signed-off-by: Jacopo Mondi <jacopo.mondi at ideasonboard.com>
---
 src/libcamera/pipeline/rkisp1/rkisp1.cpp | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
index 8a30fe061d04..569fb8ecb629 100644
--- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
+++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
@@ -630,23 +630,19 @@ PipelineHandlerRkISP1::generateConfiguration(Camera *camera,
 	 * first stream and use it for all streams.
 	 */
 	std::optional<ColorSpace> colorSpace;
-
 	bool mainPathAvailable = true;
-	bool selfPathAvailable = data->selfPath_;
 
 	for (const StreamRole role : roles) {
-		bool useMainPath;
+		bool useMainPath = mainPathAvailable;
 
 		switch (role) {
 		case StreamRole::StillCapture:
-			useMainPath = mainPathAvailable;
 			/* JPEG encoders typically expect sYCC. */
 			if (!colorSpace)
 				colorSpace = ColorSpace::Sycc;
 			break;
 
 		case StreamRole::Viewfinder:
-			useMainPath = !selfPathAvailable;
 			/*
 			 * sYCC is the YCbCr encoding of sRGB, which is commonly
 			 * used by displays.
@@ -656,7 +652,6 @@ PipelineHandlerRkISP1::generateConfiguration(Camera *camera,
 			break;
 
 		case StreamRole::VideoRecording:
-			useMainPath = !selfPathAvailable;
 			/* Rec. 709 is a good default for HD video recording. */
 			if (!colorSpace)
 				colorSpace = ColorSpace::Rec709;
@@ -669,7 +664,6 @@ PipelineHandlerRkISP1::generateConfiguration(Camera *camera,
 				return nullptr;
 			}
 
-			useMainPath = true;
 			colorSpace = ColorSpace::Raw;
 			break;
 
@@ -686,7 +680,6 @@ PipelineHandlerRkISP1::generateConfiguration(Camera *camera,
 			mainPathAvailable = false;
 		} else {
 			path = data->selfPath_;
-			selfPathAvailable = false;
 		}
 
 		StreamConfiguration cfg =
-- 
2.39.0