libcamera: Use PixelFormat instead of unsigned int where appropriate

Use the PixelFormat instead of unsigned int where a pixel format is to
be used. PixelFormat is defined as an unsigned int but is about to be
turned into a class to add functionality.

There is no functional change in this patch.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/cam/main.cpp

@@ -303,7 +303,7 @@ int CamApp::infoConfiguration()
 		std::cout << index << ": " << cfg.toString() << std::endl;
 
 		const StreamFormats &formats = cfg.formats();
-		for (unsigned int pixelformat : formats.pixelformats()) {
+		for (PixelFormat pixelformat : formats.pixelformats()) {
 			std::cout << " * Pixelformat: 0x" << std::hex
 				  << std::setw(8) << pixelformat << " "
 				  << formats.range(pixelformat).toString()

src/gstreamer/gstlibcamera-utils.cpp

@@ -79,16 +79,16 @@ gst_libcamera_stream_formats_to_caps(const StreamFormats &formats)
 {
 	GstCaps *caps = gst_caps_new_empty();
 
-	for (unsigned int fourcc : formats.pixelformats()) {
+	for (PixelFormat pixelformat : formats.pixelformats()) {
-		g_autoptr(GstStructure) bare_s = bare_structure_from_fourcc(fourcc);
+		g_autoptr(GstStructure) bare_s = bare_structure_from_fourcc(pixelformat);
 
 		if (!bare_s) {
 			GST_WARNING("Unsupported DRM format %" GST_FOURCC_FORMAT,
-				    GST_FOURCC_ARGS(fourcc));
+				    GST_FOURCC_ARGS(pixelformat));
 			continue;
 		}
 
-		for (const Size &size : formats.sizes(fourcc)) {
+		for (const Size &size : formats.sizes(pixelformat)) {
 			GstStructure *s = gst_structure_copy(bare_s);
 			gst_structure_set(s,
 					  "width", G_TYPE_INT, size.width,
@@ -97,7 +97,7 @@ gst_libcamera_stream_formats_to_caps(const StreamFormats &formats)
 			gst_caps_append_structure(caps, s);
 		}
 
-		const SizeRange &range = formats.range(fourcc);
+		const SizeRange &range = formats.range(pixelformat);
 		if (range.hStep && range.vStep) {
 			GstStructure *s = gst_structure_copy(bare_s);
 			GValue val = G_VALUE_INIT;

src/libcamera/pipeline/ipu3/ipu3.cpp

@@ -349,7 +349,7 @@ CameraConfiguration::Status IPU3CameraConfiguration::validate()
 
 	for (unsigned int i = 0; i < config_.size(); ++i) {
 		StreamConfiguration &cfg = config_[i];
-		const unsigned int pixelFormat = cfg.pixelFormat;
+		const PixelFormat pixelFormat = cfg.pixelFormat;
 		const Size size = cfg.size;
 		const IPU3Stream *stream;
 

src/libcamera/pipeline/rkisp1/rkisp1.cpp

@@ -433,7 +433,7 @@ RkISP1CameraConfiguration::RkISP1CameraConfiguration(Camera *camera,
 
 CameraConfiguration::Status RkISP1CameraConfiguration::validate()
 {
-	static const std::array<unsigned int, 8> formats{
+	static const std::array<PixelFormat, 8> formats{
 		DRM_FORMAT_YUYV,
 		DRM_FORMAT_YVYU,
 		DRM_FORMAT_VYUY,

src/libcamera/pipeline/uvcvideo.cpp

@@ -107,10 +107,10 @@ CameraConfiguration::Status UVCCameraConfiguration::validate()
 
 	StreamConfiguration &cfg = config_[0];
 	const StreamFormats &formats = cfg.formats();
-	const unsigned int pixelFormat = cfg.pixelFormat;
+	const PixelFormat pixelFormat = cfg.pixelFormat;
 	const Size size = cfg.size;
 
-	const std::vector<unsigned int> pixelFormats = formats.pixelformats();
+	const std::vector<PixelFormat> pixelFormats = formats.pixelformats();
 	auto iter = std::find(pixelFormats.begin(), pixelFormats.end(), pixelFormat);
 	if (iter == pixelFormats.end()) {
 		cfg.pixelFormat = pixelFormats.front();

src/libcamera/pipeline/vimc.cpp

@@ -106,7 +106,7 @@ private:
 
 namespace {
 
-constexpr std::array<unsigned int, 3> pixelformats{
+constexpr std::array<PixelFormat, 3> pixelformats{
 	DRM_FORMAT_RGB888,
 	DRM_FORMAT_BGR888,
 	DRM_FORMAT_BGRA8888,
@@ -177,7 +177,7 @@ CameraConfiguration *PipelineHandlerVimc::generateConfiguration(Camera *camera,
 
 	ImageFormats formats;
 
-	for (unsigned int pixelformat : pixelformats) {
+	for (PixelFormat pixelformat : pixelformats) {
 		/* The scaler hardcodes a x3 scale-up ratio. */
 		std::vector<SizeRange> sizes{
 			SizeRange{ 48, 48, 4096, 2160 }

src/qcam/format_converter.cpp

@@ -27,7 +27,7 @@
 #define CLIP(x)			CLAMP(x,0,255)
 #endif
 
-int FormatConverter::configure(unsigned int format, unsigned int width,
+int FormatConverter::configure(libcamera::PixelFormat format, unsigned int width,
 			       unsigned int height)
 {
 	switch (format) {

src/qcam/format_converter.h

@@ -9,12 +9,14 @@
 
 #include <stddef.h>
 
+#include <libcamera/pixelformats.h>
+
 class QImage;
 
 class FormatConverter
 {
 public:
-	int configure(unsigned int format, unsigned int width,
+	int configure(libcamera::PixelFormat format, unsigned int width,
 		      unsigned int height);
 
 	void convert(const unsigned char *src, size_t size, QImage *dst);
@@ -31,7 +33,7 @@ private:
 	void convertRGB(const unsigned char *src, unsigned char *dst);
 	void convertYUV(const unsigned char *src, unsigned char *dst);
 
-	unsigned int format_;
+	libcamera::PixelFormat format_;
 	unsigned int width_;
 	unsigned int height_;
 

src/qcam/viewfinder.cpp

@@ -44,7 +44,7 @@ QImage ViewFinder::getCurrentImage()
 	return image_->copy();
 }
 
-int ViewFinder::setFormat(unsigned int format, unsigned int width,
+int ViewFinder::setFormat(libcamera::PixelFormat format, unsigned int width,
 			  unsigned int height)
 {
 	int ret;

src/qcam/viewfinder.h

@@ -10,6 +10,8 @@
 #include <QMutex>
 #include <QWidget>
 
+#include <libcamera/pixelformats.h>
+
 #include "format_converter.h"
 
 class QImage;
@@ -20,7 +22,7 @@ public:
 	ViewFinder(QWidget *parent);
 	~ViewFinder();
 
-	int setFormat(unsigned int format, unsigned int width,
+	int setFormat(libcamera::PixelFormat format, unsigned int width,
 		      unsigned int height);
 	void display(const unsigned char *rgb, size_t size);
 
@@ -31,7 +33,7 @@ protected:
 	QSize sizeHint() const override;
 
 private:
-	unsigned int format_;
+	libcamera::PixelFormat format_;
 	unsigned int width_;
 	unsigned int height_;