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Current Path: /usr/src/contrib/xz/src/liblzma/lzma

usr / src / contrib / xz / src / liblzma / lzma /

📁 ..
📄 fastpos.h(3.9 KB)
📄 fastpos_table.c(33.16 KB)
📄 fastpos_tablegen.c(1.24 KB)
📄 lzma2_decoder.c(7.4 KB)
📄 lzma2_decoder.h(819 B)
📄 lzma2_encoder.c(10.25 KB)
📄 lzma2_encoder.h(1.16 KB)
📄 lzma_common.h(6.78 KB)
📄 lzma_decoder.c(26.68 KB)
📄 lzma_decoder.h(1.52 KB)
📄 lzma_encoder.c(18.08 KB)
📄 lzma_encoder.h(1.57 KB)
📄 lzma_encoder_optimum_fast.c(4.3 KB)
📄 lzma_encoder_optimum_normal.c(22.74 KB)
📄 lzma_encoder_presets.c(1.72 KB)
📄 lzma_encoder_private.h(3.82 KB)

Editing: fastpos_tablegen.c

///////////////////////////////////////////////////////////////////////////////
//
/// \file       fastpos_tablegen.c
/// \brief      Generates the lzma_fastpos[] lookup table
///
//  Authors:    Igor Pavlov
//              Lasse Collin
//
//  This file has been put into the public domain.
//  You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////

#include <inttypes.h>
#include <stdio.h>
#include "fastpos.h"

int
main(void)
{
	uint8_t fastpos[1 << FASTPOS_BITS];

const uint8_t fast_slots = 2 * FASTPOS_BITS;
	uint32_t c = 2;

fastpos[0] = 0;
	fastpos[1] = 1;

for (uint8_t slot_fast = 2; slot_fast < fast_slots; ++slot_fast) {
		const uint32_t k = 1 << ((slot_fast >> 1) - 1);
		for (uint32_t j = 0; j < k; ++j, ++c)
			fastpos[c] = slot_fast;
	}

printf("/* This file has been automatically generated "
			"by fastpos_tablegen.c. */\n\n"
			"#include \"common.h\"\n"
			"#include \"fastpos.h\"\n\n"
			"const uint8_t lzma_fastpos[1 << FASTPOS_BITS] = {");

for (size_t i = 0; i < (1 << FASTPOS_BITS); ++i) {
		if (i % 16 == 0)
			printf("\n\t");

printf("%3u", (unsigned int)(fastpos[i]));

if (i != (1 << FASTPOS_BITS) - 1)
			printf(",");
	}

printf("\n};\n");

return 0;
}

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Editing: fastpos_tablegen.c

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