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| author | Antonino A. Daplas <adaplas@gmail.com> | 2007-05-08 09:39:11 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 20:15:31 +0200 |
| commit | 2d2699d984924890f6dac8cf51c3b6311f56816c (patch) | |
| tree | bd8f50392ac6918589c6069177b89172f2263916 /drivers/video/console/fbcon.c | |
| parent | fbdev: advertise limitation of drawing engine (diff) | |
| download | linux-2d2699d984924890f6dac8cf51c3b6311f56816c.tar.xz linux-2d2699d984924890f6dac8cf51c3b6311f56816c.zip | |
fbcon: font setting should check limitation of driver
fbcon_set_font() will now check if the new font dimensions can be drawn by the
driver (by checking pixmap.blit_x and blit_y). Similarly, add 2 new
parameters to get_default_font(), font_w and font_h, to further aid in the
font selection process.
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/console/fbcon.c')
| -rw-r--r-- | drivers/video/console/fbcon.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 19dfdfbd4341..c71a88d531cd 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -988,7 +988,9 @@ static const char *fbcon_startup(void) if (!p->fontdata) { if (!fontname[0] || !(font = find_font(fontname))) font = get_default_font(info->var.xres, - info->var.yres); + info->var.yres, + info->pixmap.blit_x, + info->pixmap.blit_y); vc->vc_font.width = font->width; vc->vc_font.height = font->height; vc->vc_font.data = (void *)(p->fontdata = font->data); @@ -1108,7 +1110,9 @@ static void fbcon_init(struct vc_data *vc, int init) if (!fontname[0] || !(font = find_font(fontname))) font = get_default_font(info->var.xres, - info->var.yres); + info->var.yres, + info->pixmap.blit_x, + info->pixmap.blit_y); vc->vc_font.width = font->width; vc->vc_font.height = font->height; vc->vc_font.data = (void *)(p->fontdata = font->data); @@ -2495,6 +2499,7 @@ static int fbcon_copy_font(struct vc_data *vc, int con) static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigned flags) { + struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; unsigned charcount = font->charcount; int w = font->width; int h = font->height; @@ -2508,6 +2513,11 @@ static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigne if (charcount != 256 && charcount != 512) return -EINVAL; + /* Make sure drawing engine can handle the font */ + if (!(info->pixmap.blit_x & (1 << (font->width - 1))) || + !(info->pixmap.blit_y & (1 << (font->height - 1)))) + return -EINVAL; + size = h * pitch * charcount; new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER); @@ -2552,7 +2562,8 @@ static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font, cha const struct font_desc *f; if (!name) - f = get_default_font(info->var.xres, info->var.yres); + f = get_default_font(info->var.xres, info->var.yres, + info->pixmap.blit_x, info->pixmap.blit_y); else if (!(f = find_font(name))) return -ENOENT; |