From fab528e574994c74a17862300bbf63abd0061704 Mon Sep 17 00:00:00 2001 From: Teruaki Kawashima Date: Sun, 16 Aug 2009 14:57:15 +0000 Subject: pluginlib_bmp: fix bug that bitmap isn't saved correctly if width is not a multiple of 4. optimize a bit. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22346 a1c6a512-1295-4272-9138-f99709370657 --- apps/plugins/lib/pluginlib_bmp.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'apps/plugins/lib') diff --git a/apps/plugins/lib/pluginlib_bmp.c b/apps/plugins/lib/pluginlib_bmp.c index 00c8cbbec0..8520a8b17f 100644 --- a/apps/plugins/lib/pluginlib_bmp.c +++ b/apps/plugins/lib/pluginlib_bmp.c @@ -35,8 +35,8 @@ */ int save_bmp_file( char* filename, struct bitmap *bm ) { - /* I'm not really sure about this one :) */ - int line_width = bm->width*3+((bm->width*3)%4?4-((bm->width*3)%4):0); + int line_width = (bm->width*3+3) & ~3; + int padsize = line_width - bm->width*3; const unsigned char header[] = { @@ -77,10 +77,10 @@ int save_bmp_file( char* filename, struct bitmap *bm ) }; rb->write( fh, c, 3 ); } - for( x = 0; x < 3*bm->width - line_width; x++ ) + if(padsize != 0) { - unsigned char c = 0; - rb->write( fh, &c, 1 ); + unsigned int c = 0; /* padsize is at most 3. */ + rb->write( fh, &c, padsize ); } } rb->close( fh ); -- cgit v1.2.3