diff options
| author | Paul Kocialkowski <contact@paulk.fr> | 2017-07-23 16:05:47 +0300 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-08-03 20:37:07 +0000 |
| commit | d85e485c5892f2d96e8c5d10828c13af154a5481 (patch) | |
| tree | 38a90e1b5efaae53430068ba823ee95044262459 /payloads/libpayload/drivers/video/font.c | |
| parent | 1c0b603673a3132a1554905dbcfe95c8fadb501e (diff) | |
| download | coreboot-d85e485c5892f2d96e8c5d10828c13af154a5481.tar.xz | |
libpayload: video: Add support for font scaling with a factor
This introduces support for font scaling with a factor provided via
Kconfig. In practice, the font itself is not scaled at any point in
memory and only the logic to determine whether a pixel should be filled
or not is changed.
Thus, it should not significantly impact either the access time or
memory use.
Change-Id: Idff210617c9ec08c6034aef107cfdb34c7cdf029
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-on: https://review.coreboot.org/20709
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'payloads/libpayload/drivers/video/font.c')
| -rw-r--r-- | payloads/libpayload/drivers/video/font.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/payloads/libpayload/drivers/video/font.c b/payloads/libpayload/drivers/video/font.c index 59d476dacf..8758a9646e 100644 --- a/payloads/libpayload/drivers/video/font.c +++ b/payloads/libpayload/drivers/video/font.c @@ -27,14 +27,22 @@ * SUCH DAMAGE. */ +#include <libpayload.h> #include "font8x16.h" #include "font.h" +#define COLS_MIN 130 + int font_width; int font_height; +int font_scale; -void font_init(void) +void font_init(int width) { - font_width = FONT_WIDTH; - font_height = FONT_HEIGHT; + font_scale = CONFIG_LP_FONT_SCALE_FACTOR; + if (!font_scale) + font_scale = MAX(width / (FONT_WIDTH * COLS_MIN), 1); + + font_width = FONT_WIDTH * font_scale; + font_height = FONT_HEIGHT * font_scale; } |