2411a45b07
tumble is a somewhat rustic utility that takes jpeg pictures OR 1 bit tiff b&w pictures and creates a pdf out of them, see the README for more details okay jca@
23 lines
588 B
Plaintext
23 lines
588 B
Plaintext
$OpenBSD: patch-bitblt_g4_c,v 1.1.1.1 2020/04/25 14:02:14 espie Exp $
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Index: bitblt_g4.c
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--- bitblt_g4.c.orig
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+++ bitblt_g4.c
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@@ -215,6 +215,7 @@ static uint32_t g4_find_pixel (uint8_t *buf,
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return (width);
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}
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+#define absdiff(a, b) ((a) < (b) ? (b)-(a) : (a) - (b))
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static void g4_encode_row (struct bit_buffer *buf,
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uint32_t width,
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@@ -253,7 +254,7 @@ static void g4_encode_row (struct bit_buffer *buf,
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fprintf (stderr, "pass\n");
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#endif
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}
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- else if (abs (a1 - b1) <= 3)
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+ else if (absdiff(a1, b1) <= 3)
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{
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/* vertical mode */
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write_bits (buf,
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