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| author | Einar Johan Trøan Sømåen | 2012-07-21 18:19:07 +0200 |
|---|---|---|
| committer | Einar Johan Trøan Sømåen | 2012-07-21 19:15:33 +0200 |
| commit | 5683f076331d2831eb4720b65bb53e8d01ca33ee (patch) | |
| tree | 4357d989476643db887d5f5a95f6fd165afd0514 /engines/wintermute/base/file/base_disk_file.cpp | |
| parent | 0622b2c5b8260c0f0c01122d6fbc5e10013d1613 (diff) | |
| download | scummvm-rg350-5683f076331d2831eb4720b65bb53e8d01ca33ee.tar.gz scummvm-rg350-5683f076331d2831eb4720b65bb53e8d01ca33ee.tar.bz2 scummvm-rg350-5683f076331d2831eb4720b65bb53e8d01ca33ee.zip | |
WINTERMUTE: Rename CamelCased filenames to prefixed_under_score-filenames
This is mostly a lead-up to namespacing the Ad/Base folders, and then
possibly removing the prefixes from the files, it also has the added
benefit of getting rid of the odd case-typos that makes for issues
on platforms that don't ignore case.
Diffstat (limited to 'engines/wintermute/base/file/base_disk_file.cpp')
| -rw-r--r-- | engines/wintermute/base/file/base_disk_file.cpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/engines/wintermute/base/file/base_disk_file.cpp b/engines/wintermute/base/file/base_disk_file.cpp new file mode 100644 index 0000000000..99bf9cff3f --- /dev/null +++ b/engines/wintermute/base/file/base_disk_file.cpp @@ -0,0 +1,131 @@ +/* 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.
+ *
+ */
+
+/*
+ * This file is based on WME Lite.
+ * http://dead-code.org/redir.php?target=wmelite
+ * Copyright (c) 2011 Jan Nedoma
+ */
+
+#include "engines/wintermute/dcgf.h"
+#include "engines/wintermute/base/base_game.h"
+#include "engines/wintermute/wintypes.h"
+#include "engines/wintermute/base/file/BPkgFile.h"
+#include "engines/wintermute/base/file/base_disk_file.h"
+#include "engines/wintermute/base/base_file_manager.h"
+#include "common/stream.h"
+#include "common/memstream.h"
+#include "common/file.h"
+#include "common/zlib.h"
+
+namespace WinterMute {
+
+void correctSlashes(char *fileName) {
+ for (size_t i = 0; i < strlen(fileName); i++) {
+ if (fileName[i] == '\\') fileName[i] = '/';
+ }
+}
+
+Common::SeekableReadStream *openDiskFile(const Common::String &filename, CBFileManager *fileManager) {
+ char fullPath[MAX_PATH_LENGTH];
+ uint32 prefixSize = 0;
+ Common::SeekableReadStream *file = NULL;
+
+ for (uint32 i = 0; i < fileManager->_singlePaths.size(); i++) {
+ sprintf(fullPath, "%s%s", fileManager->_singlePaths[i], filename.c_str());
+ correctSlashes(fullPath);
+ Common::File *tempFile = new Common::File();
+ if (tempFile->open(fullPath)) {
+ file = tempFile;
+ } else {
+ delete tempFile;
+ }
+ }
+
+ // if we didn't find it in search paths, try to open directly
+ if (!file) {
+ strcpy(fullPath, filename.c_str());
+ correctSlashes(fullPath);
+
+ Common::File *tempFile = new Common::File();
+ if (tempFile->open(fullPath)) {
+ file = tempFile;
+ } else {
+ delete tempFile;
+ }
+ }
+
+ if (file) {
+ uint32 magic1, magic2;
+ magic1 = file->readUint32LE();
+ magic2 = file->readUint32LE();
+
+ bool compressed = false;
+ if (magic1 == DCGF_MAGIC && magic2 == COMPRESSED_FILE_MAGIC) compressed = true;
+
+ if (compressed) {
+ uint32 DataOffset, CompSize, UncompSize;
+ DataOffset = file->readUint32LE();
+ CompSize = file->readUint32LE();
+ UncompSize = file->readUint32LE();
+
+ byte *CompBuffer = new byte[CompSize];
+ if (!CompBuffer) {
+ error("Error allocating memory for compressed file '%s'", filename.c_str());
+ delete file;
+ return NULL;
+ }
+
+ byte *data = new byte[UncompSize];
+ if (!data) {
+ error("Error allocating buffer for file '%s'", filename.c_str());
+ delete [] CompBuffer;
+ delete file;
+ return NULL;
+ }
+ file->seek(DataOffset + prefixSize, SEEK_SET);
+ file->read(CompBuffer, CompSize);
+
+ if (Common::uncompress(data, (unsigned long *)&UncompSize, CompBuffer, CompSize) != true) {
+ error("Error uncompressing file '%s'", filename.c_str());
+ delete [] CompBuffer;
+ delete file;
+ return NULL;
+ }
+
+ delete [] CompBuffer;
+
+ return new Common::MemoryReadStream(data, UncompSize, DisposeAfterUse::YES);
+ delete file;
+ file = NULL;
+ } else {
+ file->seek(0, SEEK_SET);
+ return file;
+ }
+
+ return file;
+
+ }
+ return NULL;
+}
+
+} // end of namespace WinterMute
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