d85e485c58
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>
49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2017 Paul Kocialkowski <contact@paulk.fr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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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(int width)
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{
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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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