Add Nintendo 64 port to trunk.

svn-id: r46773

4 files changed, 324 insertions, 0 deletions

diff --git a/backends/fs/n64/n64-fs-factory.cpp b/backends/fs/n64/n64-fs-factory.cpp
new file mode 100644
index 0000000000..7e314693b8
--- /dev/null
+++ b/backends/fs/n64/n64-fs-factory.cpp
@@ -0,0 +1,47 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#ifdef __N64__
+
+#include <n64utils.h>
+
+#include "backends/fs/n64/n64-fs-factory.h"
+#include "backends/fs/n64/n64-fs.cpp"
+
+AbstractFSNode *N64FilesystemFactory::makeRootFileNode() const {
+	return new N64FilesystemNode();
+}
+
+AbstractFSNode *N64FilesystemFactory::makeCurrentDirectoryFileNode() const {
+	char buf[MAXPATHLEN];
+	return romfs_getcwd(buf, MAXPATHLEN) ? new N64FilesystemNode(Common::String(buf), false) : NULL;
+}
+
+AbstractFSNode *N64FilesystemFactory::makeFileNodePath(const Common::String &path) const {
+	assert(!path.empty());
+	return new N64FilesystemNode(path, false);
+}
+
+#endif
+
diff --git a/backends/fs/n64/n64-fs-factory.h b/backends/fs/n64/n64-fs-factory.h
new file mode 100644
index 0000000000..915153c6f8
--- /dev/null
+++ b/backends/fs/n64/n64-fs-factory.h
@@ -0,0 +1,42 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#ifndef N64_FILESYSTEM_FACTORY_H
+#define N64_FILESYSTEM_FACTORY_H
+
+#include <romfs.h>
+#include "backends/fs/fs-factory.h"
+
+/**
+ * Creates N64FilesystemNode objects.
+ *
+ * Parts of this class are documented in the base interface class, FilesystemFactory.
+ */
+class N64FilesystemFactory : public FilesystemFactory {
+	virtual AbstractFSNode *makeRootFileNode() const;
+	virtual AbstractFSNode *makeCurrentDirectoryFileNode() const;
+	virtual AbstractFSNode *makeFileNodePath(const Common::String &path) const;
+};
+
+#endif /*N64_FILESYSTEM_FACTORY_H*/
diff --git a/backends/fs/n64/n64-fs.cpp b/backends/fs/n64/n64-fs.cpp
new file mode 100644
index 0000000000..514e3be02d
--- /dev/null
+++ b/backends/fs/n64/n64-fs.cpp
@@ -0,0 +1,213 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifdef __N64__
+
+#include "backends/fs/abstract-fs.h"
+#include "backends/fs/stdiostream.h"
+
+#include <sys/param.h>
+
+#include <unistd.h>
+
+#include <n64utils.h>
+
+#define	ROOT_PATH	"/"
+
+/**
+ * Implementation of the ScummVM file system API based on N64 Hkz romfs.
+ *
+ * Parts of this class are documented in the base interface class, AbstractFSNode.
+ */
+class N64FilesystemNode : public AbstractFSNode {
+protected:
+	Common::String _displayName;
+	Common::String _path;
+	bool _isDirectory;
+	bool _isValid;
+
+public:
+	/**
+	 * Creates a N64FilesystemNode with the root node as path.
+	 */
+	N64FilesystemNode();
+
+	/**
+	 * Creates a N64FilesystemNode for a given path.
+	 *
+	 * @param path Common::String with the path the new node should point to.
+	 * @param verify true if the isValid and isDirectory flags should be verified during the construction.
+	 */
+	N64FilesystemNode(const Common::String &p, bool verify = true);
+
+	virtual bool exists() const;
+	virtual Common::String getDisplayName() const {
+		return _displayName;
+	}
+	virtual Common::String getName() const {
+		return _displayName;
+	}
+	virtual Common::String getPath() const {
+		return _path;
+	}
+	virtual bool isDirectory() const {
+		return _isDirectory;
+	}
+	virtual bool isReadable() const;
+	virtual bool isWritable() const;
+
+	virtual AbstractFSNode *getChild(const Common::String &n) const;
+	virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
+	virtual AbstractFSNode *getParent() const;
+
+	virtual Common::SeekableReadStream *createReadStream();
+	virtual Common::WriteStream *createWriteStream();
+};
+
+N64FilesystemNode::N64FilesystemNode() {
+	_isDirectory = true;
+	_displayName = "Root";
+	_isValid = true;
+	_path = ROOT_PATH;
+}
+
+N64FilesystemNode::N64FilesystemNode(const Common::String &p, bool verify) {
+	assert(p.size() > 0);
+
+	_path = p;
+	_displayName = lastPathComponent(_path, '/');
+	_isValid = true;
+	_isDirectory = true;
+
+	// Check if it's a dir
+	ROMFILE *tmpfd = romfs_open(p.c_str(), "r");
+	if (tmpfd) {
+		_isDirectory = (tmpfd->type == 0 || tmpfd->type == 1);
+		romfs_close(tmpfd);
+	}
+}
+
+bool N64FilesystemNode::exists() const {
+	int ret = -1;
+
+	ret = romfs_access(_path.c_str(), F_OK);
+
+	return ret == 0;
+}
+
+bool N64FilesystemNode::isReadable() const {
+	int ret = -1;
+
+	ret = romfs_access(_path.c_str(), R_OK);
+
+	return ret == 0;
+}
+
+// We can't write on ROMFS!
+bool N64FilesystemNode::isWritable() const {
+	return false;
+}
+
+
+AbstractFSNode *N64FilesystemNode::getChild(const Common::String &n) const {
+	// FIXME: Pretty lame implementation! We do no error checking to speak
+	// of, do not check if this is a special node, etc.
+	assert(_isDirectory);
+
+	Common::String newPath(_path);
+	if (_path.lastChar() != '/')
+		newPath += '/';
+	newPath += n;
+
+	return new N64FilesystemNode(newPath, true);
+}
+
+bool N64FilesystemNode::getChildren(AbstractFSList &myList, ListMode mode, bool hidden) const {
+	assert(_isDirectory);
+	ROMDIR *dirp = romfs_opendir(_path.c_str());
+	romfs_dirent *dp;
+
+	if (dirp == NULL)
+		return false;
+
+	// loop over dir entries using readdir
+	while ((dp = romfs_readdir(dirp)) != NULL) {
+		// Skip 'invisible' files if necessary
+		if (dp->entryname[0] == '.' && !hidden) {
+			free(dp);
+			continue;
+		}
+		// Skip '.' and '..' to avoid cycles
+		if ((dp->entryname[0] == '.' && dp->entryname[1] == 0) || (dp->entryname[0] == '.' && dp->entryname[1] == '.')) {
+			free(dp);
+			continue;
+		}
+
+		// Start with a clone of this node, with the correct path set
+		N64FilesystemNode entry(*this);
+		entry._displayName = dp->entryname;
+		if (_path.lastChar() != '/')
+			entry._path += '/';
+		entry._path += entry._displayName;
+
+		// Force validity for now...
+		entry._isValid = 1;
+
+		entry._isDirectory = (dp->type == 0 || dp->type == 1);
+
+		// Honor the chosen mode
+		if ((mode == Common::FSNode::kListFilesOnly && entry._isDirectory) ||
+		        (mode == Common::FSNode::kListDirectoriesOnly && !entry._isDirectory)) {
+
+			free(dp);
+			continue;
+		}
+
+		myList.push_back(new N64FilesystemNode(entry));
+
+		free(dp);
+	}
+	romfs_closedir(dirp);
+
+	return true;
+}
+
+AbstractFSNode *N64FilesystemNode::getParent() const {
+	if (_path == ROOT_PATH)
+		return 0;
+
+	const char *start = _path.c_str();
+	const char *end = lastPathComponent(_path, '/');
+
+	return new N64FilesystemNode(Common::String(start, end - start), false);
+}
+
+Common::SeekableReadStream *N64FilesystemNode::createReadStream() {
+	return StdioStream::makeFromPath(getPath(), false);
+}
+
+Common::WriteStream *N64FilesystemNode::createWriteStream() {
+	return StdioStream::makeFromPath(getPath(), true);
+}
+
+#endif //#ifdef __N64__
+
diff --git a/backends/fs/stdiostream.cpp b/backends/fs/stdiostream.cpp
index 8845d796c6..73796a31ea 100644
--- a/backends/fs/stdiostream.cpp
+++ b/backends/fs/stdiostream.cpp
@@ -25,6 +25,28 @@
 
 #include "backends/fs/stdiostream.h"
 
+#ifdef __N64__
+	#include <romfs.h> 
+
+	#undef feof
+	#undef clearerr
+	#undef ferror
+
+	#undef FILE
+	#define FILE ROMFILE
+
+	#define fopen(name, mode)					romfs_open(name, mode)
+	#define fclose(handle)						romfs_close(handle)
+	#define fread(ptr, size, items, file)		romfs_read(ptr, size, items, file)
+	#define fwrite(ptr, size, items, file)		romfs_write(ptr, size, items, file)
+	#define feof(handle)						romfs_eof(handle)
+	#define ftell(handle)						romfs_tell(handle)
+	#define fseek(handle, offset, whence)		romfs_seek(handle, offset, whence)
+	#define clearerr(handle)					romfs_clearerr(handle)
+	#define fflush(file)						romfs_flush(file)
+	#define ferror(handle)						romfs_error(handle)
+#endif
+
 StdioStream::StdioStream(void *handle) : _handle(handle) {
 	assert(handle);
 }