99eee16a13
In the JPEG decoder, use `bytes_per_line` instead of `width` for address calculations, to allow for bigger framebuffers. When calling jpeg_decode(), add an offset to the framebuffer address so the picture gets centered. Change-Id: I0174bdccfaad425e708a5fa50bcb28a1b98a23f7 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/76424 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@gmail.com> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Subrata Banik <subratabanik@google.com>
37 lines
780 B
C
37 lines
780 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <stdlib.h>
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#include <stdio.h>
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#include "jpeg.h"
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const int depth = 16;
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int main(int argc, char **argv)
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{
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FILE *f = fopen(argv[1], "rb");
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unsigned long len;
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if (!f)
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return 1;
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if (fseek(f, 0, SEEK_END) != 0)
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return 1;
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len = ftell(f);
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if (fseek(f, 0, SEEK_SET) != 0)
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return 1;
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char *buf = malloc(len);
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struct jpeg_decdata *decdata = malloc(sizeof(*decdata));
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if (fread(buf, len, 1, f) != 1)
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return 1;
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fclose(f);
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int width;
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int height;
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jpeg_fetch_size(buf, &width, &height);
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//printf("width: %d, height: %d\n", width, height);
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char *pic = malloc(depth / 8 * width * height);
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int ret = jpeg_decode(buf, pic, width, height, width * depth / 8, depth, decdata);
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//printf("ret: %x\n", ret);
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return ret;
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}
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