scripts/pnmtologo: fix for plain PBM

PBM generated with current tools do not have a whitespace between the
digits. Therefore the pnmtologo tool fails to gernerate the required
C-Array for these images. This patch fixes that behaviour and can
handle both 'old style' and 'new style' PBM files.

Signed-off-by: Andreas Bießmann <andreas@biessmann.de>
Signed-off-by: Michal Marek <mmarek@suse.cz>

diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c
index 5c11312..68bb4ef 100644 (file)
--- a/scripts/pnmtologo.c
+++ b/scripts/pnmtologo.c
@@ -74,6 +74,7 @@ static unsigned int logo_height;
 static struct color **logo_data;
 static struct color logo_clut[MAX_LINUX_LOGO_COLORS];
 static unsigned int logo_clutsize;
+static int is_plain_pbm = 0;
 
 static void die(const char *fmt, ...)
     __attribute__ ((noreturn)) __attribute ((format (printf, 1, 2)));
@@ -103,6 +104,11 @@ static unsigned int get_number(FILE *fp)
     val = 0;
     while (isdigit(c)) {
        val = 10*val+c-'0';
+       /* some PBM are 'broken'; GiMP for example exports a PBM without space
+        * between the digits. This is Ok cause we know a PBM can only have a '1'
+        * or a '0' for the digit. */
+       if (is_plain_pbm)
+               break;
        c = fgetc(fp);
        if (c == EOF)
            die("%s: end of file\n", filename);
@@ -167,6 +173,7 @@ static void read_image(void)
     switch (magic) {
        case '1':
            /* Plain PBM */
+           is_plain_pbm = 1;
            for (i = 0; i < logo_height; i++)
                for (j = 0; j < logo_width; j++)
                    logo_data[i][j].red = logo_data[i][j].green =