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engines/director/lingo/xlibs/m/memoryxobj.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*************************************
+ *
+ * USED IN:
+ * Chop Suey (Win)
+ * Comedians (Mac)
+ *
+ *************************************/
+
+/*
+ * Memory is a Mac only XObject.
+ *
+ * Implemented as a no-op, since ScummVM doesn't need to handle memory clears.
+ *
+ *
+ * -- Memory XObject
+ * -- December 18th, 1992
+ * -- Written by Scott Kildall
+ * -- 1992 by Macromedia, Inc
+ * -- All rights reserved
+ * --
+ * I mNew
+ * X mClear
+ * X mCompact
+ * X mPurge
+ * I mAvailBytes
+ * I mAvailBlock
+ * I mStackSpace
+ * I mGetVM
+ * I mGetAddressing
+ * I mGetCache
+ * XI mSetCache
+ * I mGetPhysicalRAM
+ * I mGetMMU
+ * I mGetLogicalPage
+ * I mGetLogicalRAM
+ * I mGetLowMemory
+ */
+
+#include "director/director.h"
+#include "director/lingo/lingo.h"
+#include "director/lingo/lingo-object.h"
+#include "director/lingo/xlibs/m/memoryxobj.h"
+
+
+namespace Director {
+
+const char *const MemoryXObj::xlibName = "Memory";
+const XlibFileDesc MemoryXObj::fileNames[] = {
+	{ "Memory XObj",	nullptr },
+	{ "Memory",			nullptr },
+	{ nullptr,			nullptr },
+};
+
+static const MethodProto xlibMethods[] = {
+	{ "new",					MemoryXObj::m_new,			0,	0,	300 },	// D3
+	{ "Clear",					MemoryXObj::m_clear,		0,	0,	300 },	// D3
+	{ "Purge",					MemoryXObj::m_purge,		0,	0,	400 },	// D4
+	{ "GetVM",					MemoryXObj::m_getVM,		0,  0,  300 },  // D3
+	{ nullptr, nullptr, 0, 0, 0 }
+};
+
+void MemoryXObj::open(ObjectType type, const Common::Path &path) {
+	if (type == kXObj) {
+		MemoryXObject::initMethods(xlibMethods);
+		MemoryXObject *xobj = new MemoryXObject(kXObj);
+		g_lingo->exposeXObject(xlibName, xobj);
+	}
+}
+
+void MemoryXObj::close(ObjectType type) {
+	if (type == kXObj) {
+		MemoryXObject::cleanupMethods();
+		g_lingo->_globalvars[xlibName] = Datum();
+	}
+}
+
+
+MemoryXObject::MemoryXObject(ObjectType ObjectType) :Object<MemoryXObject>("Memory") {
+	_objType = ObjectType;
+}
+
+void MemoryXObj::m_new(int nargs) {
+	g_lingo->push(g_lingo->_state->me);
+}
+
+void MemoryXObj::m_clear(int nargs) {
+}
+
+void MemoryXObj::m_purge(int nargs) {
+}
+
+void MemoryXObj::m_getVM(int nargs) {
+	g_lingo->push(Datum(0)); // Chop Suey (Win) and Comedians (Mac) require Virtual Memory to be disabled
+}
+
+} // End of namespace Director