qcam: Use QSize through the code base

Qt has a QSize class to store sizes. Use it to replace width and height
where applicable.

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

src/qcam/format_converter.cpp

@@ -26,7 +26,7 @@
 #endif
 
 int FormatConverter::configure(const libcamera::PixelFormat &format,
-			       unsigned int width, unsigned int height)
+			       const QSize &size)
 {
 	switch (format) {
 	case DRM_FORMAT_NV12:
@@ -139,8 +139,8 @@ int FormatConverter::configure(const libcamera::PixelFormat &format,
 	};
 
 	format_ = format;
-	width_ = width;
+	width_ = size.width();
-	height_ = height;
+	height_ = size.height();
 
 	return 0;
 }

src/qcam/format_converter.h

@@ -9,6 +9,8 @@
 
 #include <stddef.h>
 
+#include <QSize>
+
 #include <libcamera/pixelformats.h>
 
 class QImage;
@@ -16,8 +18,7 @@ class QImage;
 class FormatConverter
 {
 public:
-	int configure(const libcamera::PixelFormat &format, unsigned int width,
+	int configure(const libcamera::PixelFormat &format, const QSize &size);
-		      unsigned int height);
 
 	void convert(const unsigned char *src, size_t size, QImage *dst);
 

src/qcam/main_window.cpp

@@ -232,8 +232,8 @@ int MainWindow::startCapture()
 	}
 
 	Stream *stream = cfg.stream();
-	ret = viewfinder_->setFormat(cfg.pixelFormat, cfg.size.width,
+	ret = viewfinder_->setFormat(cfg.pixelFormat,
-				     cfg.size.height);
+				     QSize(cfg.size.width, cfg.size.height));
 	if (ret < 0) {
 		std::cout << "Failed to set viewfinder format" << std::endl;
 		return ret;

src/qcam/viewfinder.cpp

@@ -15,7 +15,7 @@
 #include "format_converter.h"
 
 ViewFinder::ViewFinder(QWidget *parent)
-	: QWidget(parent), format_(0), width_(0), height_(0), image_(nullptr)
+	: QWidget(parent), format_(0), image_(nullptr)
 {
 }
 
@@ -46,20 +46,19 @@ QImage ViewFinder::getCurrentImage()
 }
 
 int ViewFinder::setFormat(const libcamera::PixelFormat &format,
-			  unsigned int width, unsigned int height)
+			  const QSize &size)
 {
 	int ret;
 
-	ret = converter_.configure(format, width, height);
+	ret = converter_.configure(format, size);
 	if (ret < 0)
 		return ret;
 
 	format_ = format;
-	width_ = width;
+	size_ = size;
-	height_ = height;
 
 	delete image_;
-	image_ = new QImage(width, height, QImage::Format_RGB32);
+	image_ = new QImage(size_, QImage::Format_RGB32);
 
 	updateGeometry();
 	return 0;
@@ -73,5 +72,5 @@ void ViewFinder::paintEvent(QPaintEvent *)
 
 QSize ViewFinder::sizeHint() const
 {
-	return image_ ? image_->size() : QSize(640, 480);
+	return size_.isValid() ? size_ : QSize(640, 480);
 }

src/qcam/viewfinder.h

@@ -8,6 +8,7 @@
 #define __QCAM_VIEWFINDER_H__
 
 #include <QMutex>
+#include <QSize>
 #include <QWidget>
 
 #include <libcamera/pixelformats.h>
@@ -22,8 +23,7 @@ public:
 	ViewFinder(QWidget *parent);
 	~ViewFinder();
 
-	int setFormat(const libcamera::PixelFormat &format, unsigned int width,
+	int setFormat(const libcamera::PixelFormat &format, const QSize &size);
-		      unsigned int height);
 	void display(const unsigned char *rgb, size_t size);
 
 	QImage getCurrentImage();
@@ -33,12 +33,11 @@ protected:
 	QSize sizeHint() const override;
 
 private:
-	libcamera::PixelFormat format_;
-	unsigned int width_;
-	unsigned int height_;
-
 	FormatConverter converter_;
 
+	libcamera::PixelFormat format_;
+	QSize size_;
+
 	QImage *image_;
 	QMutex mutex_; /* Prevent concurrent access to image_ */
 };