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>
This commit is contained in:
committed by
Martin Roth
parent
1c0b603673
commit
d85e485c58
@@ -27,14 +27,22 @@
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* SUCH DAMAGE.
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*/
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#include <libpayload.h>
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#include "font8x16.h"
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#include "font.h"
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#define COLS_MIN 130
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int font_width;
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int font_height;
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int font_scale;
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void font_init(void)
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void font_init(int width)
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{
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font_width = FONT_WIDTH;
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font_height = FONT_HEIGHT;
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font_scale = CONFIG_LP_FONT_SCALE_FACTOR;
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if (!font_scale)
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font_scale = MAX(width / (FONT_WIDTH * COLS_MIN), 1);
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font_width = FONT_WIDTH * font_scale;
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font_height = FONT_HEIGHT * font_scale;
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}
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