1 files changed, 62 insertions, 0 deletions
diff --git a/src/apps/qcam/format_converter.h b/src/apps/qcam/format_converter.h
new file mode 100644
index 00000000..37dbfae2
--- /dev/null
+++ b/src/apps/qcam/format_converter.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * format_convert.h - qcam - Convert buffer to RGB
+ */
+
+#pragma once
+
+#include <stddef.h>
+
+#include <QSize>
+
+#include <libcamera/pixel_format.h>
+
+class Image;
+class QImage;
+
+class FormatConverter
+{
+public:
+	int configure(const libcamera::PixelFormat &format, const QSize &size,
+		      unsigned int stride);
+
+	void convert(const Image *src, size_t size, QImage *dst);
+
+private:
+	enum FormatFamily {
+		MJPEG,
+		RGB,
+		YUVPacked,
+		YUVPlanar,
+		YUVSemiPlanar,
+	};
+
+	void convertRGB(const Image *src, unsigned char *dst);
+	void convertYUVPacked(const Image *src, unsigned char *dst);
+	void convertYUVPlanar(const Image *src, unsigned char *dst);
+	void convertYUVSemiPlanar(const Image *src, unsigned char *dst);
+
+	libcamera::PixelFormat format_;
+	unsigned int width_;
+	unsigned int height_;
+	unsigned int stride_;
+
+	enum FormatFamily formatFamily_;
+
+	/* NV parameters */
+	unsigned int horzSubSample_;
+	unsigned int vertSubSample_;
+	bool nvSwap_;
+
+	/* RGB parameters */
+	unsigned int bpp_;
+	unsigned int r_pos_;
+	unsigned int g_pos_;
+	unsigned int b_pos_;
+
+	/* YUV parameters */
+	unsigned int y_pos_;
+	unsigned int cb_pos_;
+};