diff options
Diffstat (limited to 'w3mimg/fb/fb.c')
| -rw-r--r-- | w3mimg/fb/fb.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/w3mimg/fb/fb.c b/w3mimg/fb/fb.c index c936784..954525a 100644 --- a/w3mimg/fb/fb.c +++ b/w3mimg/fb/fb.c @@ -1,4 +1,4 @@ -/* $Id: fb.c,v 1.9 2002/10/31 09:36:22 ukai Exp $ */ +/* $Id: fb.c,v 1.10 2003/07/07 15:48:17 ukai Exp $ */ /************************************************************************** fb.c 0.3 Copyright (C) 2002, hito **************************************************************************/ @@ -365,6 +365,30 @@ fb_height(void) return vscinfo.yres; } +int +fb_clear(int x, int y, int w, int h, int r, int g, int b) +{ + unsigned long bg; + int i, offset_fb; + + if (is_open != TRUE || x > fb_width() || y > fb_height()) + return 1; + if (x + w > fb_width()) + w = fb_width() - x; + if (y + h > fb_height()) + h = fb_height() - y; + + offset_fb = fscinfo.line_length * y + pixel_size * x; + bg = ((r >> (CHAR_BIT - vscinfo.red.length)) << vscinfo.red.offset) + + ((g >> (CHAR_BIT - vscinfo.green.length)) << vscinfo.green.offset) + + ((b >> (CHAR_BIT - vscinfo.blue.length)) << vscinfo.blue.offset); + for (i = 0; i < h; i++) { + memcpy(buf + offset_fb, bg, pixel_size * w); + offset_fb += fscinfo.line_length; + } + return 0; +} + /********* static functions **************/ static int |