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engines/director/lingo/xlibs/a/aiff.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:
+ * Gahan Wilson's Ultimate Haunted House
+ *
+ *************************************/
+
+/*
+ * -- copyright 1994 by Byron Priess Multimedia, authored by MayoSmith and Lee
+ * aiff
+ * I      mNew                --Read Docs to avoid Hard Drive failure
+ * X      mDispose            --Disposes of XObject instance
+ * S      mName               --Returns the XObject name (Widget)
+ * I      mStatus             --Returns an integer status code
+ * SI     mError, code        --Returns an error string
+ * S      mLastError          --Returns last error string
+ * III    mAdd, arg1, arg2    --Returns arg1+arg2
+ * SSI    mFirst, str, nchars --Return the first nchars of string str
+ * V      mMul, f1, f2        --Returns f1*f2 as floating point
+ * X      mGlobals            --Sample code to Read & Modify globals
+ * X      mSymbols            --Sample code to work with Symbols
+ * X      mSendPerform        --Sample code to show SendPerform call
+ * X      mFactory            --Sample code to find Factory objects
+ * IS     mDuration, str      --Read Docs to avoid Hard Drive failure
+ */
+
+#include "common/macresman.h"
+#include "audio/decoders/aiff.h"
+#include "director/director.h"
+#include "director/lingo/lingo.h"
+#include "director/lingo/lingo-object.h"
+#include "director/lingo/xlibs/a/aiff.h"
+
+
+namespace Director {
+
+const char *const AiffXObj::xlibName = "aiff";
+const XlibFileDesc AiffXObj::fileNames[] = {
+	{ "AIFF",	nullptr },
+	{ nullptr,	nullptr },
+};
+
+static const MethodProto xlibMethods[] = {
+	{ "new",   		AiffXObj::m_new,					0,	0,	400 },	// D4
+	{ "Duration",   AiffXObj::m_duration,				1,	1,	400 },	// D4
+	{ nullptr, nullptr, 0, 0, 0 }
+};
+
+void AiffXObj::open(ObjectType type, const Common::Path &path) {
+	if (type == kXObj) {
+		AiffXObject::initMethods(xlibMethods);
+		AiffXObject *xobj = new AiffXObject(kXObj);
+		g_lingo->exposeXObject(xlibName, xobj);
+	}
+}
+
+void AiffXObj::close(ObjectType type) {
+	if (type == kXObj) {
+		AiffXObject::cleanupMethods();
+		g_lingo->_globalvars[xlibName] = Datum();
+	}
+}
+
+
+AiffXObject::AiffXObject(ObjectType ObjectType) :Object<AiffXObject>("Aiff") {
+	_objType = ObjectType;
+}
+
+void AiffXObj::m_new(int nargs) {
+	g_lingo->printSTUBWithArglist("AiffXObj::new", nargs);
+	g_lingo->push(g_lingo->_state->me);
+}
+
+void AiffXObj::m_duration(int nargs) {
+	Common::String filePath = g_lingo->pop().asString();
+
+	Common::SeekableReadStream *aiffStream = Common::MacResManager::openFileOrDataFork(findPath(filePath));
+	if (!aiffStream) {
+		warning("AiffXObj::m_duration: Failed to open %s", filePath.c_str());
+		g_lingo->push(0);
+		return;
+	}
+
+	Audio::AIFFHeader *aiffHeader = Audio::AIFFHeader::readAIFFHeader(aiffStream, DisposeAfterUse::NO);
+	if (!aiffHeader) {
+		warning("AiffXObj::m_duration: No AIFF header found for %s", filePath.c_str());
+		g_lingo->push(0);
+		delete aiffStream;
+		return;
+	}
+
+	int duration = (aiffHeader->getFrameCount() / (float)aiffHeader->getFrameRate()) * 60;
+
+	delete aiffHeader;
+	delete aiffStream;
+	g_lingo->push(Datum(duration));
+}
+
+} // End of namespace Director