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diff --git a/lib/libutee/tui/font.h b/lib/libutee/tui/font.h
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+++ b/lib/libutee/tui/font.h
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+/*
+ * Copyright (c) 2016, Linaro Limited
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __FONT_H
+#define __FONT_H
+
+#include <types_ext.h>
+#include "image.h"
+
+struct font_letter {
+	const unsigned char *blob;
+	unsigned int blob_size;
+	unsigned int width;
+};
+
+struct font {
+	unsigned int first;
+	unsigned int last;
+	const struct font_letter *letters;
+	unsigned int height;
+	unsigned int max_width;
+};
+
+bool font_set_fonts(const struct font *regular, const struct font *bold);
+
+bool font_check_text_format(const char *text, size_t *width, size_t *height,
+			size_t *last_index);
+
+size_t font_get_max_field_length(size_t width);
+
+size_t font_get_max_field_width(size_t num_letters);
+
+size_t font_get_text_height(void);
+
+bool font_render_text(struct image *image, size_t xpos, size_t ypos,
+			const char *text, uint32_t color);
+
+#endif /*__FONT_H*/