Every vga init implementation needs to cache the framebuffer state
to be able to fill the lb_framebuffer struct later on in the
fill_lb_framebuffer call. Showing the bootsplash afterwards
guarantees to have the same interface into all the vga drivers.
This is by far from ideal, as it only allows for a single driver at
compile-time and should be adapted in the future.
It was tested on the wip razer blade stealth using vgabios @ 1280x1024
and also in Qemu @ 1280x1024.
By default the qemu framebuffer will be initialized in 800x600@32.
This can be overwriten by configuration by setting
CONFIG_DRIVERS_EMULATION_QEMU_BOCHS_{X,Y}RES .
Change-Id: I4bec06d22423627e8f429c4b47e0dc9920f1464e
Signed-off-by: Johanna Schander <coreboot@mimoja.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34599
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
30 lines
933 B
C
30 lines
933 B
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2019 Johanna Schander <coreboot@mimoja.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __BOOTSPLASH_H__
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#define __BOOTSPLASH_H__
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#include <types.h>
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/**
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* Sets up the framebuffer with the bootsplash.jpg from cbfs.
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* Returns 0 on success
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* CB_ERR on cbfs errors
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* and >0 on jpeg errors.
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*/
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void set_bootsplash(unsigned char *framebuffer, unsigned int x_resolution,
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unsigned int y_resolution, unsigned int fb_resolution);
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#endif
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