X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=tools%2Fbmp_logo.c;h=55f833fb9b8bbcb11c58e29430b193ff327e7ab8;hb=844e5b20f2691eccce9ac8f7e3732bbb5d0ac757;hp=47228d255b344a755790f7cfdcbe6e27246cea86;hpb=cb32ed1fc298875845f166d326a3f2704a0d5364;p=u-boot

diff --git a/tools/bmp_logo.c b/tools/bmp_logo.c
index 47228d255b..55f833fb9b 100644
--- a/tools/bmp_logo.c
+++ b/tools/bmp_logo.c
@@ -1,5 +1,10 @@
 #include "compiler.h"
 
+enum {
+	MODE_GEN_INFO,
+	MODE_GEN_DATA
+};
+
 typedef struct bitmap_s {		/* bitmap description */
 	uint16_t width;
 	uint16_t height;
@@ -9,6 +14,11 @@ typedef struct bitmap_s {		/* bitmap description */
 
 #define DEFAULT_CMAP_SIZE	16	/* size of default color map	*/
 
+void usage(const char *prog)
+{
+	fprintf(stderr, "Usage: %s [--gen-info|--gen-data] file\n", prog);
+}
+
 /*
  * Neutralize little endians.
  */
@@ -39,21 +49,52 @@ int error (char * msg, FILE *fp)
 	exit (EXIT_FAILURE);
 }
 
+void gen_info(bitmap_t *b, uint16_t n_colors)
+{
+	printf("/*\n"
+		" * Automatically generated by \"tools/bmp_logo\"\n"
+		" *\n"
+		" * DO NOT EDIT\n"
+		" *\n"
+		" */\n\n\n"
+		"#ifndef __BMP_LOGO_H__\n"
+		"#define __BMP_LOGO_H__\n\n"
+		"#define BMP_LOGO_WIDTH\t\t%d\n"
+		"#define BMP_LOGO_HEIGHT\t\t%d\n"
+		"#define BMP_LOGO_COLORS\t\t%d\n"
+		"#define BMP_LOGO_OFFSET\t\t%d\n\n"
+		"extern unsigned short bmp_logo_palette[];\n"
+		"extern unsigned char bmp_logo_bitmap[];\n\n"
+		"#endif /* __BMP_LOGO_H__ */\n",
+		b->width, b->height, n_colors,
+		DEFAULT_CMAP_SIZE);
+}
+
 int main (int argc, char *argv[])
 {
-	int	i, x;
+	int	mode, i, x;
 	FILE	*fp;
 	bitmap_t bmp;
 	bitmap_t *b = &bmp;
-	uint16_t data_offset, n_colors;
+	uint16_t data_offset, n_colors, hdr_size;
 
-	if (argc < 2) {
-		fprintf (stderr, "Usage: %s file\n", argv[0]);
+	if (argc < 3) {
+		usage(argv[0]);
 		exit (EXIT_FAILURE);
 	}
 
-	if ((fp = fopen (argv[1], "rb")) == NULL) {
-		perror (argv[1]);
+	if (!strcmp(argv[1], "--gen-info"))
+		mode = MODE_GEN_INFO;
+	else if (!strcmp(argv[1], "--gen-data"))
+		mode = MODE_GEN_DATA;
+	else {
+		usage(argv[0]);
+		exit(EXIT_FAILURE);
+	}
+
+	fp = fopen(argv[2], "rb");
+	if (!fp) {
+		perror(argv[2]);
 		exit (EXIT_FAILURE);
 	}
 
@@ -67,7 +108,12 @@ int main (int argc, char *argv[])
 	skip_bytes (fp, 8);
 	if (fread (&data_offset, sizeof (uint16_t), 1, fp) != 1)
 		error ("Couldn't read bitmap data offset", fp);
-	skip_bytes (fp, 6);
+	skip_bytes(fp, 2);
+	if (fread(&hdr_size,   sizeof(uint16_t), 1, fp) != 1)
+		error("Couldn't read bitmap header size", fp);
+	if (hdr_size < 40)
+		error("Invalid bitmap header", fp);
+	skip_bytes(fp, 2);
 	if (fread (&b->width,   sizeof (uint16_t), 1, fp) != 1)
 		error ("Couldn't read bitmap width", fp);
 	skip_bytes (fp, 2);
@@ -76,7 +122,7 @@ int main (int argc, char *argv[])
 	skip_bytes (fp, 22);
 	if (fread (&n_colors, sizeof (uint16_t), 1, fp) != 1)
 		error ("Couldn't read bitmap colors", fp);
-	skip_bytes (fp, 6);
+	skip_bytes(fp, hdr_size - 34);
 
 	/*
 	 * Repair endianess.
@@ -92,28 +138,26 @@ int main (int argc, char *argv[])
 		n_colors = 256 - DEFAULT_CMAP_SIZE;
 	}
 
-	printf ("/*\n"
+	if (mode == MODE_GEN_INFO) {
+		gen_info(b, n_colors);
+		goto out;
+	}
+
+	printf("/*\n"
 		" * Automatically generated by \"tools/bmp_logo\"\n"
 		" *\n"
 		" * DO NOT EDIT\n"
 		" *\n"
 		" */\n\n\n"
-		"#ifndef __BMP_LOGO_H__\n"
-		"#define __BMP_LOGO_H__\n\n"
-		"#define BMP_LOGO_WIDTH\t\t%d\n"
-		"#define BMP_LOGO_HEIGHT\t\t%d\n"
-		"#define BMP_LOGO_COLORS\t\t%d\n"
-		"#define BMP_LOGO_OFFSET\t\t%d\n"
-		"\n",
-		b->width, b->height, n_colors,
-		DEFAULT_CMAP_SIZE);
+		"#ifndef __BMP_LOGO_DATA_H__\n"
+		"#define __BMP_LOGO_DATA_H__\n\n");
 
 	/* allocate memory */
 	if ((b->data = (uint8_t *)malloc(b->width * b->height)) == NULL)
 		error ("Error allocating memory for file", fp);
 
 	/* read and print the palette information */
-	printf ("unsigned short bmp_logo_palette[] = {\n");
+	printf("unsigned short bmp_logo_palette[] = {\n");
 
 	for (i=0; i<n_colors; ++i) {
 		b->palette[(int)(i*3+2)] = fgetc(fp);
@@ -137,14 +181,13 @@ int main (int argc, char *argv[])
 	printf ("\n");
 	printf ("};\n");
 	printf ("\n");
-	printf ("unsigned char bmp_logo_bitmap[] = {\n");
+	printf("unsigned char bmp_logo_bitmap[] = {\n");
 	for (i=(b->height-1)*b->width; i>=0; i-=b->width) {
 		for (x = 0; x < b->width; x++) {
-			b->data[(uint16_t) i + x] = (uint8_t) fgetc (fp) \
+			b->data[i + x] = (uint8_t) fgetc(fp)
 						+ DEFAULT_CMAP_SIZE;
 		}
 	}
-	fclose (fp);
 
 	for (i=0; i<(b->height*b->width); ++i) {
 		if ((i%8) == 0)
@@ -156,8 +199,10 @@ int main (int argc, char *argv[])
 	}
 	printf ("\n"
 		"};\n\n"
-		"#endif /* __BMP_LOGO_H__ */\n"
+		"#endif /* __BMP_LOGO_DATA_H__ */\n"
 	);
 
-	return (0);
+out:
+	fclose(fp);
+	return 0;
 }