Added precomputed range coder probability price table.

1 files changed, 55 insertions, 0 deletions

diff --git a/src/liblzma/rangecoder/price_table_gen.c b/src/liblzma/rangecoder/price_table_gen.c
new file mode 100644
index 00000000..04703e4f
--- /dev/null
+++ b/src/liblzma/rangecoder/price_table_gen.c
@@ -0,0 +1,55 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       price_table_gen.c
+/// \brief      Probability price table generator
+///
+/// Compiling: gcc -std=c99 -o price_table_gen price_table_gen.c
+//
+//  Copyright (C) 2007 Lasse Collin
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2.1 of the License, or (at your option) any later version.
+//
+//  This library is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  Lesser General Public License for more details.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include <sys/types.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include "range_common.h"
+#include "price_table_init.c"
+
+
+int
+main(void)
+{
+	lzma_rc_init();
+
+	printf("/* This file has been automatically generated by "
+			"price_table_gen.c. */\n\n"
+			"#include \"range_encoder.h\"\n\n"
+			"const uint32_t lzma_rc_prob_prices["
+			"BIT_MODEL_TOTAL >> MOVE_REDUCING_BITS] = {");
+
+	const size_t array_size = sizeof(lzma_rc_prob_prices)
+			/ sizeof(lzma_rc_prob_prices[0]);
+	for (size_t i = 0; i < array_size; ++i) {
+		if (i % 8 == 0)
+			printf("\n\t");
+
+		printf("% 4" PRIu32, lzma_rc_prob_prices[i]);
+
+		if (i != array_size - 1)
+			printf(",");
+	}
+
+	printf("\n};\n");
+
+	return 0;
+}