From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 lib/fonts/fonts.c | 153 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 lib/fonts/fonts.c

(limited to 'lib/fonts/fonts.c')

diff --git a/lib/fonts/fonts.c b/lib/fonts/fonts.c
new file mode 100644
index 0000000000..9738664386
--- /dev/null
+++ b/lib/fonts/fonts.c
@@ -0,0 +1,153 @@
+/*
+ * `Soft' font definitions
+ *
+ *    Created 1995 by Geert Uytterhoeven
+ *    Rewritten 1998 by Martin Mares <mj@ucw.cz>
+ *
+ *	2001 - Documented with DocBook
+ *	- Brad Douglas <brad@neruo.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#if defined(__mc68000__)
+#include <asm/setup.h>
+#endif
+#include <linux/font.h>
+
+static const struct font_desc *fonts[] = {
+#ifdef CONFIG_FONT_8x8
+	&font_vga_8x8,
+#endif
+#ifdef CONFIG_FONT_8x16
+	&font_vga_8x16,
+#endif
+#ifdef CONFIG_FONT_6x11
+	&font_vga_6x11,
+#endif
+#ifdef CONFIG_FONT_7x14
+	&font_7x14,
+#endif
+#ifdef CONFIG_FONT_SUN8x16
+	&font_sun_8x16,
+#endif
+#ifdef CONFIG_FONT_SUN12x22
+	&font_sun_12x22,
+#endif
+#ifdef CONFIG_FONT_10x18
+	&font_10x18,
+#endif
+#ifdef CONFIG_FONT_ACORN_8x8
+	&font_acorn_8x8,
+#endif
+#ifdef CONFIG_FONT_PEARL_8x8
+	&font_pearl_8x8,
+#endif
+#ifdef CONFIG_FONT_MINI_4x6
+	&font_mini_4x6,
+#endif
+#ifdef CONFIG_FONT_6x10
+	&font_6x10,
+#endif
+#ifdef CONFIG_FONT_TER16x32
+	&font_ter_16x32,
+#endif
+#ifdef CONFIG_FONT_6x8
+	&font_6x8,
+#endif
+};
+
+#define num_fonts ARRAY_SIZE(fonts)
+
+#ifdef NO_FONTS
+#error No fonts configured.
+#endif
+
+
+/**
+ *	find_font - find a font
+ *	@name: string name of a font
+ *
+ *	Find a specified font with string name @name.
+ *
+ *	Returns %NULL if no font found, or a pointer to the
+ *	specified font.
+ *
+ */
+const struct font_desc *find_font(const char *name)
+{
+	unsigned int i;
+
+	BUILD_BUG_ON(!num_fonts);
+	for (i = 0; i < num_fonts; i++)
+		if (!strcmp(fonts[i]->name, name))
+			return fonts[i];
+	return NULL;
+}
+EXPORT_SYMBOL(find_font);
+
+
+/**
+ *	get_default_font - get default font
+ *	@xres: screen size of X
+ *	@yres: screen size of Y
+ *      @font_w: bit array of supported widths (1 - 32)
+ *      @font_h: bit array of supported heights (1 - 32)
+ *
+ *	Get the default font for a specified screen size.
+ *	Dimensions are in pixels.
+ *
+ *	Returns %NULL if no font is found, or a pointer to the
+ *	chosen font.
+ *
+ */
+const struct font_desc *get_default_font(int xres, int yres, u32 font_w,
+					 u32 font_h)
+{
+	int i, c, cc, res;
+	const struct font_desc *f, *g;
+
+	g = NULL;
+	cc = -10000;
+	for (i = 0; i < num_fonts; i++) {
+		f = fonts[i];
+		c = f->pref;
+#if defined(__mc68000__)
+#ifdef CONFIG_FONT_PEARL_8x8
+		if (MACH_IS_AMIGA && f->idx == PEARL8x8_IDX)
+			c = 100;
+#endif
+#ifdef CONFIG_FONT_6x11
+		if (MACH_IS_MAC && xres < 640 && f->idx == VGA6x11_IDX)
+			c = 100;
+#endif
+#endif
+		if ((yres < 400) == (f->height <= 8))
+			c += 1000;
+
+		/* prefer a bigger font for high resolution */
+		res = (xres / f->width) * (yres / f->height) / 1000;
+		if (res > 20)
+			c += 20 - res;
+
+		if ((font_w & (1U << (f->width - 1))) &&
+		    (font_h & (1U << (f->height - 1))))
+			c += 1000;
+
+		if (c > cc) {
+			cc = c;
+			g = f;
+		}
+	}
+	return g;
+}
+EXPORT_SYMBOL(get_default_font);
+
+MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>");
+MODULE_DESCRIPTION("Console Fonts");
+MODULE_LICENSE("GPL");
-- 
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