[libcamera-devel] [PATCH v4 04/10] android: camera_device: Break out size calculation

[Jacopo Mondi]

As the RAW stream sizes needs to be calculated differently from the
processed one, break out the procedure to calculate the processed
(RGB/YUV) resolutions from initializeStreamConfigurations() in order to
prepare for RAW sizes calculation.

Reviewed-by: Hirokazu Honda <hiroh at chromium.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund at ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
---
 src/android/camera_device.cpp | 42 ++++++++++++++++++++++++-----------
 src/android/camera_device.h   |  5 +++++
 2 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
index d3a53c948ea8..0386287dc39d 100644
--- a/src/android/camera_device.cpp
+++ b/src/android/camera_device.cpp
@@ -289,6 +289,31 @@ int CameraDevice::initialize()
 	return ret;
 }
 
+std::vector<Size> CameraDevice::getYUVResolutions(CameraConfiguration *cameraConfig,
+						  const PixelFormat &pixelFormat,
+						  const std::vector<Size> &resolutions)
+{
+	std::vector<Size> supportedResolutions;
+
+	StreamConfiguration &cfg = cameraConfig->at(0);
+	for (const Size &res : resolutions) {
+		cfg.pixelFormat = pixelFormat;
+		cfg.size = res;
+
+		CameraConfiguration::Status status = cameraConfig->validate();
+		if (status != CameraConfiguration::Valid) {
+			LOG(HAL, Debug) << cfg.toString() << " not supported";
+			continue;
+		}
+
+		LOG(HAL, Debug) << cfg.toString() << " supported";
+
+		supportedResolutions.push_back(res);
+	}
+
+	return supportedResolutions;
+}
+
 /*
  * Initialize the format conversion map to translate from Android format
  * identifier to libcamera pixel formats and fill in the list of supported
@@ -433,19 +458,10 @@ int CameraDevice::initializeStreamConfigurations()
 				<< camera3Format.name << " to "
 				<< mappedFormat.toString();
 
-		for (const Size &res : cameraResolutions) {
-			cfg.pixelFormat = mappedFormat;
-			cfg.size = res;
-
-			CameraConfiguration::Status status = cameraConfig->validate();
-			if (status != CameraConfiguration::Valid) {
-				LOG(HAL, Debug) << cfg.toString()
-						<< " not supported";
-				continue;
-			}
-
-			LOG(HAL, Debug) << cfg.toString() << " supported";
-
+		std::vector<Size> resolutions = getYUVResolutions(cameraConfig.get(),
+								  mappedFormat,
+								  cameraResolutions);
+		for (const Size &res : resolutions) {
 			streamConfigurations_.push_back({ res, androidFormat });
 
 			/*
diff --git a/src/android/camera_device.h b/src/android/camera_device.h
index 3934f194f1b5..1ff43327bab1 100644
--- a/src/android/camera_device.h
+++ b/src/android/camera_device.h
@@ -93,6 +93,11 @@ private:
 	};
 
 	int initializeStreamConfigurations();
+	std::vector<libcamera::Size>
+	getYUVResolutions(libcamera::CameraConfiguration *cameraConfig,
+			  const libcamera::PixelFormat &pixelFormat,
+			  const std::vector<libcamera::Size> &resolutions);
+
 	std::tuple<uint32_t, uint32_t> calculateStaticMetadataSize();
 	libcamera::FrameBuffer *createFrameBuffer(const buffer_handle_t camera3buffer);
 	void notifyShutter(uint32_t frameNumber, uint64_t timestamp);
-- 
2.28.0