From 69c590669acb39977d264c7c2103e0d2582b2e36 Mon Sep 17 00:00:00 2001
From: hackbard <hackbard@sage.physik.uni-augsburg.de>
Date: Wed, 12 Sep 2007 10:42:26 +0200
Subject: [PATCH] added a bitmap to betty lcd ram conversion tool

---
 betty/Makefile |  13 ++++-
 betty/bmp2b.c  | 135 +++++++++++++++++++++++++++++++++++++++++++++++++
 betty/readme   |   4 ++
 3 files changed, 150 insertions(+), 2 deletions(-)
 create mode 100644 betty/bmp2b.c

diff --git a/betty/Makefile b/betty/Makefile
index ad7c7d4..3807986 100644
--- a/betty/Makefile
+++ b/betty/Makefile
@@ -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 bmp2b
 CROSS_TARGET = fwbc.hex fwflash.hex betty.hex
 
 # betty deps
@@ -23,7 +23,16 @@ BETTY_DEPS = system.o uart.o buttons.o spi.o display.o flash.o functions.o
 #BETTY_DEPS += pffs.o
 
 # all projects
-all: $(HOST_TARGET) $(CROSS_TARGET)
+all: links $(HOST_TARGET) $(CROSS_TARGET)
+
+# bmp2b
+links:
+	ln -sfv ../../api/bmp/bmp.{c,h} .
+
+bmp.o: bmp.c
+	$(CC) -c $(CFLAGS) -o $@ $<
+
+bmp2b: bmp.o
 
 # arm code
 arm: arm_clean $(CROSS_TARGET)
diff --git a/betty/bmp2b.c b/betty/bmp2b.c
new file mode 100644
index 0000000..9baf3b5
--- /dev/null
+++ b/betty/bmp2b.c
@@ -0,0 +1,135 @@
+/*
+ * bmp2b.c - convert colored 24 bit bmp to the betty display ram format
+ *
+ * author: hackbard@hackdaworld.org
+ *
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "bmp.h"
+
+#define DX	128
+#define DY	160
+#define PM	(DY/8)
+
+#define BINARY	1
+#define CHAR	2
+
+int main(int argc,char **argv) {
+
+	int i,fd;
+	t_bmp src;
+	char in[128];
+	char out[128];
+	unsigned char stat;
+	unsigned char buf[2];
+	int page,col;
+	int b,pix;
+
+	stat=0;
+	for(i=1;i<argc;i++) {
+		if(argv[i][0]!='-')
+			continue;
+		switch(argv[i][1]) {
+			case 'i':
+				strncpy(in,argv[++i],128);
+				break;
+			case 'o':
+				strncpy(out,argv[++i],128);
+				break;
+			case 'b':
+				stat=BINARY;
+				break;
+			case 'c':
+				stat=CHAR;
+				break;
+			default:
+				printf("usage:\n\n");
+				printf("%s -i <bitmap> -o <out file> [-b/c]\n",
+				       argv[0]);
+				printf("\n");
+				printf("  -b: binary out\n");
+				printf("  -c: char array\n\n");
+				return -1;
+		}
+	}
+
+	/* the bitmap infile */
+	bmp_init(&src,1);
+	src.mode=READ;
+	strcpy(src.file,in);
+	bmp_read_file(&src);
+
+	if((src.width!=DX)|(src.height=!DY)) {
+		printf("wrong dimensions: %d %d (need: %d %d)\n",
+		       src.width,src.height,DX,DY);
+		return -1;
+	}
+
+	/* out file */
+	fd=open(out,O_WRONLY|O_CREAT);
+	if(fd<0) {
+		perror("open outfile");
+		return fd;
+	}
+
+	if(stat==CHAR)
+		dprintf(fd,"unsigned char default_logo[%d]={\n",DX*PM*2);
+
+	for(page=0;page<PM;page++) {
+		for(col=0;col<DX;col++) {
+			buf[0]=0;
+			buf[1]=0;
+			for(i=0;i<8;i++) {
+				pix=((page*8+i)*DX)+col;
+				b=src.map[pix].r+src.map[pix].g+src.map[pix].b;
+				b/=3;
+				if(b<=(0.25*255)) {
+					buf[0]|=(1<<i);
+					buf[1]|=(1<<i); // 1 1
+					continue;
+				}
+				if(b<=(0.5*255)) {
+					buf[0]|=(1<<i); // 1 0
+					continue;
+				}
+				if(b<=(0.75*255)) {
+					buf[1]|=(1<<i); // 0 1
+					continue;
+				}
+				// 0 0 .. do nothing!
+			}
+			if(stat==BINARY) {
+				i=write(fd,buf,2);
+				if(i<0) {
+					perror("bin write");
+					return i;
+				}
+				if(i!=2) {
+					printf("write failure\n");
+					return -1;
+				}
+			}
+			else if(stat==CHAR) {
+				dprintf(fd,"\t%02x,%02x%c\n",buf[0],buf[1],
+				        ((page+1==PM)&(col+1==DX))?' ':',');
+			}
+		}
+	}
+
+	if(stat==CHAR)
+		dprintf(fd,"};\n");
+
+	close(fd);
+	bmp_shutdown(&src);
+
+	return 0;
+}
+
diff --git a/betty/readme b/betty/readme
index 65c0bc2..c57ba8a 100644
--- a/betty/readme
+++ b/betty/readme
@@ -19,6 +19,10 @@ contents/todo:
 * fwflash.c - firmware handling the flash access
 
 * betty.c - replacement firmware for the betty tv remote
+            (follow the makefile + includes in betty.h to find more source!)
+
+* bmp2b.c - converts colored bmp images to a format according to the lcd ram
+            (you need my bmb api [my-projects/api])
 
 to be continued ...
 
-- 
2.39.2