src/lib/bootsplash.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <cbfs.h>
   4 #include <vbe.h>
   5 #include <console/console.h>
   6 #include <endian.h>
   7 #include <bootsplash.h>
   8 #include <stdlib.h>
   9
  10 #include "jpeg.h"
  11
  12
  13 void set_bootsplash(unsigned char *framebuffer, unsigned int x_resolution,
  14                     unsigned int y_resolution, unsigned int fb_resolution)
  15 {
  16         printk(BIOS_INFO, "Setting up bootsplash in %dx%d@%d\n", x_resolution, y_resolution,
  17                fb_resolution);
  18         struct jpeg_decdata *decdata;
  19         unsigned char *jpeg = cbfs_map("bootsplash.jpg", NULL);
  20         if (!jpeg) {
  21                 printk(BIOS_ERR, "Could not find bootsplash.jpg\n");
  22                 return;
  23         }
  24
  25         int image_width, image_height;
  26         jpeg_fetch_size(jpeg, &image_width, &image_height);
  27
  28         printk(BIOS_DEBUG, "Bootsplash image resolution: %dx%d\n", image_width, image_height);
  29
  30         decdata = malloc(sizeof(*decdata));
  31         int ret = jpeg_decode(jpeg, framebuffer, x_resolution, y_resolution, fb_resolution,
  32                               decdata);
  33         cbfs_unmap(jpeg);
  34         if (ret != 0) {
  35                 printk(BIOS_ERR, "Bootsplash could not be decoded. jpeg_decode returned %d.\n",
  36                        ret);
  37                 return;
  38         }
  39         printk(BIOS_INFO, "Bootsplash loaded\n");
  40 }