MT32: Update Munt to 2.0.0

This changeset also removes unnecessary direct modifications to
Munt code to ease future updates. To update Munt in the future:

1. Replace all source files in the `softsynth/mt32` directory with
   new files from the upstream `mt32emu/src` directory;
2. Update `config.h` with the correct version number for the new
   version of Munt;
3. Update `module.mk` to match the list of sources given in
   `mt32emu/CMakeLists.txt libmt32emu_SOURCES`.

1 files changed, 73 insertions, 0 deletions

diff --git a/audio/softsynth/mt32/File.cpp b/audio/softsynth/mt32/File.cpp
new file mode 100644
index 0000000000..643019d0c2
--- /dev/null
+++ b/audio/softsynth/mt32/File.cpp
@@ -0,0 +1,73 @@
+/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher
+ * Copyright (C) 2011-2016 Dean Beeler, Jerome Fisher, Sergey V. Mikayev
+ *
+ *  This program 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 program 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.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <cstring>
+
+#include "internals.h"
+
+#include "File.h"
+#include "sha1/sha1.h"
+
+namespace MT32Emu {
+
+AbstractFile::AbstractFile() : sha1DigestCalculated(false), reserved(NULL) {
+	sha1Digest[0] = 0;
+}
+
+AbstractFile::AbstractFile(const SHA1Digest &useSHA1Digest) : sha1DigestCalculated(true), reserved(NULL) {
+	memcpy(sha1Digest, useSHA1Digest, sizeof(SHA1Digest) - 1);
+	sha1Digest[sizeof(SHA1Digest) - 1] = 0; // Ensure terminator char.
+}
+
+const File::SHA1Digest &AbstractFile::getSHA1() {
+	if (sha1DigestCalculated) {
+		return sha1Digest;
+	}
+	sha1DigestCalculated = true;
+
+	size_t size = getSize();
+	if (size == 0) {
+		return sha1Digest;
+	}
+
+	const Bit8u *data = getData();
+	if (data == NULL) {
+		return sha1Digest;
+	}
+
+	unsigned char fileDigest[20];
+
+	sha1::calc(data, (int)size, fileDigest);
+	sha1::toHexString(fileDigest, sha1Digest);
+	return sha1Digest;
+}
+
+ArrayFile::ArrayFile(const Bit8u *useData, size_t useSize) : data(useData), size(useSize)
+{}
+
+ArrayFile::ArrayFile(const Bit8u *useData, size_t useSize, const SHA1Digest &useSHA1Digest) : AbstractFile(useSHA1Digest), data(useData), size(useSize)
+{}
+
+size_t ArrayFile::getSize() {
+	return size;
+}
+
+const Bit8u *ArrayFile::getData() {
+	return data;
+}
+
+} // namespace MT32Emu