bootsplash.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <cbfs.h>
#include <vbe.h>
#include <console/console.h>
#include <endian.h>
#include <bootsplash.h>
#include <stdlib.h>
 
#include "jpeg.h"
 
 
void set_bootsplash(unsigned char *framebuffer, unsigned int x_resolution,
                    unsigned int y_resolution, unsigned int fb_resolution)
{
        printk(BIOS_INFO, "Setting up bootsplash in %dx%d@%d\n", x_resolution, y_resolution,
               fb_resolution);
        struct jpeg_decdata *decdata;
        unsigned char *jpeg = cbfs_map("bootsplash.jpg", NULL);
        if (!jpeg) {
                printk(BIOS_ERR, "Could not find bootsplash.jpg\n");
                return;
        }
 
        int image_width, image_height;
        jpeg_fetch_size(jpeg, &image_width, &image_height);
 
        printk(BIOS_DEBUG, "Bootsplash image resolution: %dx%d\n", image_width, image_height);
 
        decdata = malloc(sizeof(*decdata));
        int ret = jpeg_decode(jpeg, framebuffer, x_resolution, y_resolution, fb_resolution,
                              decdata);
        cbfs_unmap(jpeg);
        if (ret != 0) {
                printk(BIOS_ERR, "Bootsplash could not be decoded. jpeg_decode returned %d.\n",
                       ret);
                return;
        }
        printk(BIOS_INFO, "Bootsplash loaded\n");
}