Working

bertos/gfx/font.h

@@ -0,0 +1,77 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief Font 8x6 IBM-PC 8bit
+ *
+ *
+ * \author Stefano Fedrigo <aleph@develer.com>
+ *
+ */
+
+#ifndef GFX_FONT_H
+#define GFX_FONT_H
+
+#include <cfg/compiler.h>  /* uint8_t */
+#include <cpu/pgm.h>     /* PROGMEM */
+
+typedef struct Font
+{
+	/**
+	 * Pointer to glyph data.
+	 *
+	 * Data is an array of at most 256 glyphs packed together.
+	 * Raster format must be the same of the bitmap.
+	 */
+	const pgm_uint8_t *glyph;
+
+	uint8_t width;     /**< Pixel width of character cell. */
+	uint8_t height;    /**< Pixel height of character cell. */
+
+	uint8_t first;     /**< First encoded character in glyph array. */
+	uint8_t last;      /**< Last encoded character in glyph array (inclusive). */
+
+	/** Array of glyph offsets in bytes. NULL for fixed-width fonts. */
+	const pgm_uint16_t *offset;
+	const pgm_uint8_t  *widths;
+
+} Font;
+
+
+/** Return true if glyph \a c is available in \a font. */
+#define FONT_HAS_GLYPH(font, c) ((c) >= (font)->first && (c) <= (font)->last)
+
+
+/** The default font. */
+#define default_font font_luBS14
+extern const struct Font default_font;
+
+#endif /* GFX_FONT_H */