X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=lzma%2Fcommon%2Feasy_decoder_memusage.c;fp=lzma%2Fcommon%2Feasy_decoder_memusage.c;h=20bcd5b717588cc8e3e8f1985856ab1d7314e2a6;hb=32b8a6b26ed8843828e03e505d2256960bda0980;hp=0000000000000000000000000000000000000000;hpb=d48fc23a4bcf8ca3c406d6e8c8a6f8c6b0fa2f1e;p=zpackage

diff --git a/lzma/common/easy_decoder_memusage.c b/lzma/common/easy_decoder_memusage.c
new file mode 100644
index 0000000..20bcd5b
--- /dev/null
+++ b/lzma/common/easy_decoder_memusage.c
@@ -0,0 +1,24 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       easy_decoder_memusage.c
+/// \brief      Decoder memory usage calculation to match easy encoder presets
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "easy_preset.h"
+
+
+extern LZMA_API(uint64_t)
+lzma_easy_decoder_memusage(uint32_t preset)
+{
+	lzma_options_easy opt_easy;
+	if (lzma_easy_preset(&opt_easy, preset))
+		return UINT32_MAX;
+
+	return lzma_raw_decoder_memusage(opt_easy.filters);
+}