ACCESS: Adding file loading

11 files changed, 305 insertions, 5 deletions

diff --git a/engines/access/access.cpp b/engines/access/access.cpp
index 3acd4c530a..25d9fcc99e 100644
--- a/engines/access/access.cpp
+++ b/engines/access/access.cpp
@@ -33,15 +33,19 @@ AccessEngine::AccessEngine(OSystem *syst, const AccessGameDescription *gameDesc)
 		_gameDescription(gameDesc), Engine(syst), _randomSource("Access") {
 	_debugger = nullptr;
 	_events = nullptr;
+	_files = nullptr;
 	_graphics = nullptr;
 	_screen = nullptr;
+	_sound = nullptr;
 }
 
 AccessEngine::~AccessEngine() {
 	delete _debugger;
 	delete _events;
+	delete _files;
 	delete _graphics;
 	delete _screen;
+	delete _sound;
 }
 
 void AccessEngine::initialize() {
@@ -52,8 +56,10 @@ void AccessEngine::initialize() {
 
 	_debugger = new Debugger(this);
 	_events = new EventsManager(this);
+	_files = new FileManager(this);
 	_graphics = new GraphicsManager(this);
 	_screen = new Screen(this);
+	_sound = new SoundManager(this);
 }
 
 Common::Error AccessEngine::run() {
diff --git a/engines/access/access.h b/engines/access/access.h
index 4676d73d1d..3386cd9e11 100644
--- a/engines/access/access.h
+++ b/engines/access/access.h
@@ -32,8 +32,10 @@
 #include "graphics/surface.h"
 #include "access/debugger.h"
 #include "access/events.h"
+#include "access/files.h"
 #include "access/graphics.h"
 #include "access/screen.h"
+#include "access/sound.h"
 
 /**
  * This is the namespace of the Access engine.
@@ -49,6 +51,11 @@ namespace Access {
 #define DEBUG_INTERMEDIATE 2
 #define DEBUG_DETAILED 3
 
+enum {
+	GType_Amazon = 1,
+	GType_MeanStreets = 2
+};
+
 enum AccessDebugChannels {
 	kDebugPath      = 1 << 0,
 	kDebugScripts	= 1 << 1,
@@ -86,8 +93,10 @@ protected:
 public:
 	Debugger *_debugger;
 	EventsManager *_events;
+	FileManager *_files;
 	GraphicsManager *_graphics;
 	Screen *_screen;
+	SoundManager *_sound;
 public:
 	AccessEngine(OSystem *syst, const AccessGameDescription *gameDesc);
 	virtual ~AccessEngine();
diff --git a/engines/access/amazon/amazon_game.cpp b/engines/access/amazon/amazon_game.cpp
index 37441411d6..53ddde9f68 100644
--- a/engines/access/amazon/amazon_game.cpp
+++ b/engines/access/amazon/amazon_game.cpp
@@ -35,6 +35,8 @@ void AmazonEngine::doTitle() {
 	_screen->forceFadeOut();
 	_events->hideCursor();
 
+	_sound->loadSound(98, 30);
+
 }
 
 } // End of namespace Amazon
diff --git a/engines/access/detection_tables.h b/engines/access/detection_tables.h
index 90304290f1..cbef1d3b63 100644
--- a/engines/access/detection_tables.h
+++ b/engines/access/detection_tables.h
@@ -22,11 +22,6 @@
 
 namespace Access {
 
-enum {
-	GType_Amazon = 1,
-	GType_MeanStreets = 2
-};
-
 static const AccessGameDescription gameDescriptions[] = {
 	{
 		// Amazon Guadians of Eden - Floppy English
diff --git a/engines/access/files.cpp b/engines/access/files.cpp
new file mode 100644
index 0000000000..7da7574df2
--- /dev/null
+++ b/engines/access/files.cpp
@@ -0,0 +1,111 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, 0xwhose 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, 0xor (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, 0xwrite to the Free Software
+ * Foundation, 0xInc., 0x51 Franklin Street, 0xFifth Floor, 0xBoston, 0xMA 02110-1301, 0xUSA.
+ *
+ */
+
+#include "access/files.h"
+#include "access/resources.h"
+#include "access/access.h"
+
+namespace Access {
+
+FileManager::FileManager(AccessEngine *vm): _vm(vm) {
+	switch (vm->getGameID()) {
+	case GType_Amazon:
+		_filenames = &Amazon::FILENAMES[0];
+		break;
+	default:
+		error("Unknown game");
+	}
+
+	_fileNumber = -1;
+	_stream = nullptr;
+}
+
+FileManager::~FileManager() {
+	delete _stream;
+	_file.close();
+}
+
+void FileManager::loadFile(int fileNum, int subfile) {
+	setAppended(fileNum);
+	gotoAppended(subfile);
+
+	handleFile();
+}
+
+void FileManager::loadFile(const Common::String &filename) {
+	// Open up the file
+	_fileNumber = -1;
+	_file.close();
+	if (_file.open(filename))
+		error("Could not open file - %s", filename.c_str());
+
+	// Get a stream for the entire file
+	delete _stream;
+	_stream = _file.readStream(_file.size());
+
+	handleFile();
+}
+
+void FileManager::handleFile() {
+	char header[3];
+	_stream->read(&header[0], 3);
+
+	if (!strncmp(header, "BDE", 3))
+		// Decompress the resource
+		decompressFile();
+	else
+		// Not compressed, so move back to start of data
+		_stream->seek(0);
+}
+
+void FileManager::decompressFile() {
+	// TODO
+}
+
+void FileManager::setAppended(int fileNum) {
+	if (_fileNumber != fileNum) {
+		_fileNumber = fileNum;
+
+		_file.close();
+		if (!_file.open(_filenames[fileNum]))
+			error("Could not open file %s", _filenames[fileNum]);
+
+		// Read in the file index
+		_fileIndex.resize(50);
+		for (int i = 0; i < 50; ++i) {
+			_fileIndex[i]._offset = _file.readUint32LE();
+			_fileIndex[i]._nextOffset = _file.readUint32LE();
+		}
+	}
+}
+
+void FileManager::gotoAppended(int subfile) {
+	uint32 offset = _fileIndex[subfile]._offset;
+	uint32 size = _fileIndex[subfile]._nextOffset - offset;
+
+	_file.seek(offset);
+	delete _stream;
+	_stream = _file.readStream(size);
+}
+
+
+} // End of namespace Access
diff --git a/engines/access/files.h b/engines/access/files.h
new file mode 100644
index 0000000000..fcd24808a3
--- /dev/null
+++ b/engines/access/files.h
@@ -0,0 +1,76 @@
+/* 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.
+ *
+ */
+
+#ifndef ACCESS_FILES_H
+#define ACCESS_FILES_H
+
+#include "common/scummsys.h"
+#include "common/file.h"
+
+namespace Access {
+
+class AccessEngine;
+
+struct FileEntry {
+	uint32 _offset;
+	uint32 _nextOffset;
+};
+
+class FileManager {
+private:
+	AccessEngine *_vm;
+	const char * const *_filenames;
+
+	void handleFile();
+
+	void decompressFile();
+
+public:
+	int _fileNumber;
+	Common::File _file;
+	Common::SeekableReadStream *_stream;
+	Common::Array<FileEntry> _fileIndex;
+	uint32 _entryOffset;
+	uint32 _nextOffset;
+public:
+	FileManager(AccessEngine *vm);
+	~FileManager();
+
+	void loadFile(int fileNum, int subfile);
+
+	void loadFile(const Common::String &filename);
+
+	/**
+	 * Open up a sub-file container file
+	 */
+	void setAppended(int fileNum);
+
+
+	/**
+	 * Open up a sub-file resource within an alrady opened container file.
+	 */
+	void gotoAppended(int subfile);
+};
+
+} // End of namespace Access
+
+#endif /* ACCESS_FILES_H */
diff --git a/engines/access/module.mk b/engines/access/module.mk
index a4fb8646ba..7e23ede512 100644
--- a/engines/access/module.mk
+++ b/engines/access/module.mk
@@ -5,9 +5,11 @@ MODULE_OBJS := \
 	debugger.o \
 	detection.o \
 	events.o \
+	files.o \
 	graphics.o \
 	resources.o \
 	screen.o \
+	sound.o \
 	amazon\amazon_game.o
 
 # This module can be built as a plugin
diff --git a/engines/access/resources.cpp b/engines/access/resources.cpp
index cf8b491900..a47abf2b06 100644
--- a/engines/access/resources.cpp
+++ b/engines/access/resources.cpp
@@ -21,6 +21,7 @@
  */
 
 #include "access/resources.h"
+#include "access/access.h"
 
 namespace Access {
 
@@ -47,6 +48,30 @@ const byte INITIAL_PALETTE[18 * 3] = {
 
 namespace Amazon {
 
+const char *const FILENAMES[] = {
+	"S00.AP", "S01.AP", "S02.AP", "R03.AP", "S04.AP", "S05.AP",
+	"S06.AP", "S07.AP", "S08.AP", "S09.AP", "S10.AP", "S11.AP",
+	"S12.AP", "S13.AP", "S14.AP", "S15.AP", "S16.AP", "S17.AP",
+	"S18.AP", "S19.AP", "S20.AP", "S21.AP", "S22.AP", "S23.AP",
+	"S24.AP", "S25.AP", "S26.AP", "S27.AP", "S28.AP", "S29.AP",
+	"S30.AP", "S31.AP", "S32.AP", "S33.AP", "S34.AP", "R35.AP",
+	"S36.AP", "S37.AP", "S38.AP", "S39.AP", "S40.AP", "C26.AP",
+	"S42.AP", "S01.AP", "S44.AP", "S45.AP", "S46.AP", "S47.AP",
+	"C36.AP", nullptr,  "S50.AP", nullptr,  nullptr,  "S53.AP",
+	"S54.AP", "S55.AP", "C35.AP", "S57.AP", "S58.AP", nullptr,
+	nullptr,  "S61.AP", nullptr,  nullptr,  "S64.AP", "C00.AP",
+	"C01.AP", "C06.AP", "C07.AP", "C08.AP", "C05.AP", "C09.AP",
+	"C12.AP", "C03.AP", "C13.AP", "C15.AP", "C14.AP", "C16.AP",
+	"C17.AP", "C19.AP", "C20.AP", "C21.AP", "C22.AP", "C23.AP",
+	"C24.AP", "C25.AP", "C29.AP", "C30.AP", "C32.AP", "C33.AP",
+	"C34.AP", "CREDITS.AP", "MIDIDRV.AP", "SUMMARY.AP", "DEAD.AP",
+	"EST.AP", "CHAPTER.AP", "MIDI.AP", "SOUND.AP", "INV.AP",
+	"NARATE01.AP", "NARATE02.AP", "NARATE03.AP", "NARATE04.AP",
+	"NARATE05.AP", "NARATE06.AP", "NARATE07.AP", "NARATE08.AP",
+	"NARATE09.AP", "NARATE10.AP", "NARATE11.AP", "NARATE12.AP",
+	"NARATE13.AP", "NARATE14.AP"
+};
+
 const byte *CURSORS[10] = {
 	MOUSE0, MOUSE1, MOUSE2, MOUSE3, CURSEYE, CURSHAND, CURSGET, CURSCLIMB, CURSTALK, CURSHELP
 };
diff --git a/engines/access/resources.h b/engines/access/resources.h
index 7bd2354c06..ba335cd0ec 100644
--- a/engines/access/resources.h
+++ b/engines/access/resources.h
@@ -31,6 +31,8 @@ extern const byte INITIAL_PALETTE[18 * 3];
 
 namespace Amazon {
 
+extern const char *const FILENAMES[];
+
 extern const byte MOUSE0[];
 extern const byte MOUSE1[];
 extern const byte MOUSE2[];
diff --git a/engines/access/sound.cpp b/engines/access/sound.cpp
new file mode 100644
index 0000000000..d04d915cc9
--- /dev/null
+++ b/engines/access/sound.cpp
@@ -0,0 +1,29 @@
+/* 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.
+ *
+ */
+
+#include "access/sound.h"
+
+namespace Access {
+
+SoundManager::SoundManager(AccessEngine *vm) : _vm(vm) {}
+
+} // End of namespace Access
diff --git a/engines/access/sound.h b/engines/access/sound.h
new file mode 100644
index 0000000000..e35e64795d
--- /dev/null
+++ b/engines/access/sound.h
@@ -0,0 +1,43 @@
+/* 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.
+ *
+ */
+
+#ifndef ACCESS_SOUND_H
+#define ACCESS_SOUND_H
+
+namespace Access {
+
+class AccessEngine;
+
+class SoundManager {
+private:
+	AccessEngine *_vm;
+public:
+	int _soundPriority;
+public:
+	SoundManager(AccessEngine *vm);
+
+	void loadSound(int fileNum, int subfile) {}
+};
+
+} // End of namespace Access
+
+#endif /* ACCESS_SOUND_H*/