diff options
Diffstat (limited to 'drivers/video/fb_draw.h')
| -rw-r--r-- | drivers/video/fb_draw.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/video/fb_draw.h b/drivers/video/fb_draw.h index 04c01faaf77..4ba0e0b1f16 100644 --- a/drivers/video/fb_draw.h +++ b/drivers/video/fb_draw.h @@ -15,6 +15,20 @@ comp(unsigned long a, unsigned long b, unsigned long mask) return ((a ^ b) & mask) ^ b; } +/* if framebuffer has alpha channel, mask in the appropriate + * bit(s) to make the specified color opaque + */ +static inline unsigned long +solid_color(struct fb_info *p, unsigned long color) +{ + if (p->var.transp.length > 0) { + u32 mask = (1 << p->var.transp.length) - 1; + mask <<= p->var.transp.offset; + color |= mask; + } + return color; +} + /* * Create a pattern with the given pixel's color */ |