libcamera: Replace toString with operator<<() for geometry classes

Now that geometry classes implement the stream formatting operator<<(),
use it instead of the toString() function.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/android/camera_capabilities.cpp

@@ -487,7 +487,7 @@ int CameraCapabilities::initializeStreamConfigurations()
 	 * JPEG encoder requirements into account (alignment and aspect ratio).
 	 */
 	const Size maxRes = cfg.size;
-	LOG(HAL, Debug) << "Maximum supported resolution: " << maxRes.toString();
+	LOG(HAL, Debug) << "Maximum supported resolution: " << maxRes;
 
 	/*
 	 * Build the list of supported image resolutions.
@@ -729,7 +729,7 @@ int CameraCapabilities::initializeStreamConfigurations()
 
 	LOG(HAL, Debug) << "Collected stream configuration map: ";
 	for (const auto &entry : streamConfigurations_)
-		LOG(HAL, Debug) << "{ " << entry.resolution.toString() << " - "
+		LOG(HAL, Debug) << "{ " << entry.resolution << " - "
 				<< utils::hex(entry.androidFormat) << " }";
 
 	return 0;
@@ -1321,7 +1321,7 @@ int CameraCapabilities::initializeStaticMetadata()
 
 		LOG(HAL, Debug)
 			<< "Output Stream: " << utils::hex(entry.androidFormat)
-			<< " (" << entry.resolution.toString() << ")["
+			<< " (" << entry.resolution << ")["
 			<< entry.minFrameDurationNsec << "]"
 			<< "@" << fps;
 	}

src/android/camera_device.cpp

@@ -925,7 +925,7 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques
 		ss << i << " - (" << camera3Stream->width << "x"
 		   << camera3Stream->height << ")"
 		   << "[" << utils::hex(camera3Stream->format) << "] -> "
-		   << "(" << cameraStream->configuration().size.toString() << ")["
+		   << "(" << cameraStream->configuration().size << ")["
 		   << cameraStream->configuration().pixelFormat.toString() << "]";
 
 		/*

src/android/yuv/post_processor_yuv.cpp

@@ -34,8 +34,8 @@ int PostProcessorYuv::configure(const StreamConfiguration &inCfg,
 
 	if (inCfg.size < outCfg.size) {
 		LOG(YUV, Error) << "Up-scaling is not supported"
-				<< " (from " << inCfg.size.toString()
-				<< " to " << outCfg.size.toString() << ")";
+				<< " (from " << inCfg.size
+				<< " to " << outCfg.size << ")";
 		return -EINVAL;
 	}