From 362d5c63842bf9e3a16de41515f5b76e867d6452 Mon Sep 17 00:00:00 2001
From: hackbard <hackbard@sage.physik.uni-augsburg.de>
Date: Thu, 13 Sep 2007 13:50:27 +0200
Subject: [PATCH] added font2b code to convert linux console fonts to lcd ram
 layout

---
 betty/Makefile |  6 ++--
 betty/font2b.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++
 betty/readme   |  4 +++
 3 files changed, 100 insertions(+), 3 deletions(-)
 create mode 100644 betty/font2b.c

diff --git a/betty/Makefile b/betty/Makefile
index cfe49bf..f6d465f 100644
--- a/betty/Makefile
+++ b/betty/Makefile
@@ -1,6 +1,6 @@
 # native builds
 CC = gcc
-CFLAGS = -Wall
+CFLAGS = -Wall -I/usr/src/linux/include
 
 # cross build
 ARCH = arm-elf
@@ -15,7 +15,7 @@ CROSS_RAM_LDFLAGS = -Tlpc2220_ram.ld -nostartfiles -nostdlib
 CROSS_ROM_LDFLAGS = -Tlpc2220_rom.ld -nostartfiles -nostdlib
 
 # build objects
-HOST_TARGET = lpcload fwdump
+HOST_TARGET = lpcload fwdump font2b
 CROSS_TARGET = fwbc.hex fwflash.hex betty.hex
 
 # betty deps
@@ -25,7 +25,7 @@ BETTY_DEPS = system.o uart.o buttons.o spi.o display.o flash.o functions.o
 # all projects
 all: $(HOST_TARGET) $(CROSS_TARGET)
 
-# bmp2b
+# bmp2b / font2b
 links:
 	ln -sfv ../../api/bmp/bmp.{c,h} .
 
diff --git a/betty/font2b.c b/betty/font2b.c
new file mode 100644
index 0000000..6c1af61
--- /dev/null
+++ b/betty/font2b.c
@@ -0,0 +1,93 @@
+/*
+ * font2b.c - convert linux console 8x8 font data to betty lcd ram layout
+ *
+ * author: hackbard@hackdaworld.org
+ *
+ * usage:
+ *
+ * first you have to adjust this file two times (see comments!)
+ * don't forget to rebuild.
+ * 
+ * ./font2b > default_font.h
+ *
+ * ONLY 8x8 FONTS SUPPORTED!
+ *
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+// put your font data here!
+#include "/usr/src/linux/drivers/video/console/font_pearl_8x8.c"
+
+#define CHAR 1
+#define BINARY 2
+
+int main(int argc,char **argv) {
+
+	unsigned char *font_data;
+	int font,col,row;
+	unsigned char buf;
+	unsigned char stat;
+	int fd=0;
+
+	// adjust the font data pointer here!
+	font_data=(unsigned char *)fontdata_pearl8x8;
+
+	stat=CHAR;
+	if(argc==2) {
+		fd=open(argv[1],O_WRONLY);
+		if(fd<0) {
+			perror("file open");
+			return fd;
+		}
+		stat=BINARY;
+	}
+
+	if(stat==CHAR)
+		printf("const unsigned char default_font[%d]={\n",256*8*2);
+
+	for(font=0;font<=0xff;font++) {
+
+		/* print the font number */
+		printf("\t/* %d 0x%02x",font,font);
+		if((font>0x1f)&(font<0x7f))
+			printf(" %c */\n",font);
+		else
+			printf(" */\n");
+
+		/* print the array content of the font */
+		for(col=0;col<8;col++) {
+			buf=0;
+			for(row=0;row<8;row++)
+				buf|=(font_data[font*8+row]&(1<<(7-col)));
+			if(stat==CHAR) {
+				if(!(col%4))
+					printf("\t");
+				printf("0x%02x,0x%02x",buf,buf);
+				if((font!=0xff)|(col!=7))
+					printf(",");
+				if(col==3)
+					printf("\n");
+			}
+			else {
+				write(fd,&buf,1);
+				write(fd,&buf,1);
+			}
+		}
+		if(stat==CHAR)
+			printf("\n");
+	}
+
+	/* end */
+	if(stat==CHAR)
+		printf("};\n");
+	else
+		close(fd);
+
+	return 0;
+}
diff --git a/betty/readme b/betty/readme
index c57ba8a..26c715a 100644
--- a/betty/readme
+++ b/betty/readme
@@ -24,6 +24,10 @@ contents/todo:
 * bmp2b.c - converts colored bmp images to a format according to the lcd ram
             (you need my bmb api [my-projects/api])
 
+* font2b.c - converts linux console fonts (only 8x8!) to the lcd ram format
+             you need to adjust the source or have the kernel source in
+	     /usr/src/linux.
+
 to be continued ...
 
 important:
-- 
2.39.2