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-rw-r--r--debug/memusage.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/debug/memusage.c b/debug/memusage.c
new file mode 100644
index 0000000..bd72b5a
--- /dev/null
+++ b/debug/memusage.c
@@ -0,0 +1,51 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file memusage.c
+/// \brief Calculates memory usage using lzma_memory_usage()
+//
+// Author: Lasse Collin
+//
+// This file has been put into the public domain.
+// You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "sysdefs.h"
+#include "lzma.h"
+#include <stdio.h>
+
+int
+main(void)
+{
+ lzma_options_lzma lzma = {
+ .dict_size = (1U << 30) + (1U << 29),
+ .lc = 3,
+ .lp = 0,
+ .pb = 2,
+ .preset_dict = NULL,
+ .preset_dict_size = 0,
+ .mode = LZMA_MODE_NORMAL,
+ .nice_len = 48,
+ .mf = LZMA_MF_BT4,
+ .depth = 0,
+ };
+
+/*
+ lzma_options_filter filters[] = {
+ { LZMA_FILTER_LZMA1,
+ (lzma_options_lzma *)&lzma_preset_lzma[6 - 1] },
+ { UINT64_MAX, NULL }
+ };
+*/
+ lzma_filter filters[] = {
+ { LZMA_FILTER_LZMA1, &lzma },
+ { UINT64_MAX, NULL }
+ };
+
+ printf("Encoder: %10" PRIu64 " B\n",
+ lzma_raw_encoder_memusage(filters));
+ printf("Decoder: %10" PRIu64 " B\n",
+ lzma_raw_decoder_memusage(filters));
+
+ return 0;
+}