mirror of https://gitlab.freedesktop.org/mesa/mesa
56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
/*
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* Copyright 2021 Alyssa Rosenzweig
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* SPDX-License-Identifier: MIT
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*/
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#ifndef U_HEXDUMP_H
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#define U_HEXDUMP_H
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#include <stdio.h>
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#include <stdbool.h>
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static inline void
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u_hexdump(FILE *fp, const uint8_t *hex, size_t cnt, bool with_strings)
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{
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for (unsigned i = 0; i < cnt; ++i) {
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if ((i & 0xF) == 0)
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fprintf(fp, "%06X ", i);
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uint8_t v = hex[i];
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if (v == 0 && (i & 0xF) == 0) {
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/* Check if we're starting an aligned run of zeroes */
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unsigned zero_count = 0;
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for (unsigned j = i; j < cnt; ++j) {
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if (hex[j] == 0)
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zero_count++;
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else
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break;
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}
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if (zero_count >= 32) {
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fprintf(fp, "*\n");
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i += (zero_count & ~0xF) - 1;
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continue;
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}
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}
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fprintf(fp, "%02X ", hex[i]);
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if ((i & 0xF) == 0xF && with_strings) {
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fprintf(fp, " | ");
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for (unsigned j = i & ~0xF; j <= i; ++j) {
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uint8_t c = hex[j];
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fputc((c < 32 || c > 128) ? '.' : c, fp);
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}
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}
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if ((i & 0xF) == 0xF)
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fprintf(fp, "\n");
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}
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fprintf(fp, "\n");
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}
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#endif
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