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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitce4a32fe52ef09d8f5ff1dd22c001110902b60a2 (patch)
tree5ac38a06f3dde268dc7927dc155896926aaf7012 /libkmid/libkmid.h
downloadtdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.tar.gz
tdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/* libkmid.h - class KMidSimpleAPI that makes it easy to use libkmid
+ and a C wrapper.
+ This file is part of LibKMid 0.9.5
+ Copyright (C) 2000 Antonio Larrosa Jimenez
+ LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+ Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
+
+***************************************************************************/
+#ifndef _LIBKMID_H
+#define _LIBKMID_H
+
+#ifdef __cplusplus
+
+#include <kdelibs_export.h>
+
+/**
+ * Simple API covering most of the uses of libkmid.
+ *
+ * You can use the members of this class in pure C applications, just by using
+ * the same name as the corresponding function member.
+ *
+ * Suppose you're developing a game and you want to play some background music
+ * while the user is playing. You only have to call :
+ *
+ * @li kMidInit();
+ * @li kMidLoad("RideOfTheValkyries.mid");
+ * @li kMidPlay();
+ *
+ * When the user decides to quit the game, use
+ *
+ * @li kMidStop();
+ * @li kMidDestruct();
+ *
+ * to stop the music and release the memory allocated by libkmid.
+ *
+ * @short A very simple API around the rest of libkmid.
+ * @version 0.9.5 17/01/2000
+ * @author Antonio Larrosa Jimenez <larrosa@kde.org>
+ */
+class KMID_EXPORT KMidSimpleAPI
+{
+ private:
+ class KMidSimpleAPIPrivate;
+ KMidSimpleAPIPrivate *d;
+
+ public:
+
+ /**
+ * Initializes libkmid. Creates the DeviceManager object, and initializes
+ * some variables that will be used later.
+ *
+ * @return 0 if OK, and a positive number when there's any error (for
+ * example, because the /dev/sequencer device couldn't be opened, be it
+ * because it was already opened by another application, or because the
+ * sound card wasn't configured)
+ */
+ static int kMidInit(void);
+
+ /**
+ * Loads a song that will be played with the next call to kMidPlay().
+ */
+ static int kMidLoad(const char *filename);
+
+ /**
+ * Plays the song currently loaded with kMidLoad().
+ * kMidPlay forks in order to play the song in a different process, it
+ * exits inmediately, so that the application can follow the normal
+ * execution flow while the sone is played.
+ *
+ * If loop is 0 the song is played once and then the child process
+ * finishes. If loop is 1, the song is played repeatedly until
+ * kMidStop() is called. You can call kMidStop() anytime you want
+ * (also if loop is 0) to stop the song and kill the child process.
+ *
+ * @see kMidStop
+ * @see kMidIsPlaying
+ */
+ static int kMidPlay(int loop=0);
+
+ /**
+ * Stops playing a song inmediatly. It doesn't return until the child
+ * process that is playing the song is terminated.
+ *
+ * @see kMidPlay
+ */
+ static int kMidStop(void);
+
+ /**
+ * Releases the memory allocated by libkmid. To continue playing, you must
+ * first make a(nother) call to kMidInit().
+ */
+ static void kMidDestruct(void);
+
+ /**
+ * Returns 1 if the library is playing a song, and 0 if it's not.
+ * @see kMidPlay
+ */
+ static int kMidIsPlaying(void);
+
+ /**
+ * Returns the number of MIDI devices ( MIDI ports + synthesizers )
+ * @see DeviceManager::midiPorts
+ * @see DeviceManager::synthDevices
+ * @see kMidName
+ * @see kMidType
+ */
+ static int kMidDevices(void);
+
+ /**
+ * Returns the name of the i-th device . In case libkmid wasn't yet
+ * initialized ( see kMidInit() ), the return value is NULL, and in
+ * case the parameter has a value out of the valid range
+ * ( see kMidDevices() ) it returns an empty string.
+ *
+ * @see kMidDevices
+ * @see kMidType
+ */
+ static const char *kMidName(int i);
+
+ /**
+ * Returns the type of the i-th device . In case libkmid wasn't yet
+ * initialized ( see kMidInit() ), the return value is NULL, and in
+ * case the parameter has a value out of the valid range
+ * ( see kMidDevices() ) it returns an empty string.
+ *
+ * @see kMidDevices
+ * @see kMidName
+ */
+ static const char *kMidType(int i);
+
+ /**
+ * Sets the MIDI device to use when playing a song.
+ * @see kMidDevices
+ * @see kMidName
+ * @see DeviceManager
+ */
+ static void kMidSetDevice(int i);
+
+ /**
+ * Sets the Midi Mapper to use. Most of the users won't need a midi mapper,
+ * but there're still non-General Midi synthesizers out there, and people
+ * with one of those will get much better sound quality by using a MIDI
+ * mapper.
+ *
+ * Please have a look at KMid's documentation for more information
+ * about MIDI mappers and how to write a MIDI mapper for your keyboard.
+ */
+ static void kMidSetMidiMapper(const char *mapfilename);
+
+ /**
+ * Returns the version number of libkmid, i.e. "0.9.5" or "1.0 Beta"
+ */
+ static const char *kMidVersion(void);
+
+ /**
+ * Returns the copyright notice that applications using libkmid should print
+ * to the user in an about box or somewhere visible.
+ * I.e.
+ *
+ * "LibKMid 0.9.5 (C) 1997-2000 Antonio Larrosa Jimenez <larrosa@kde.org>. Spain"
+ */
+ static const char *kMidCopyright(void);
+
+};
+
+
+
+extern "C" {
+
+#else
+#define KMID_EXPORT
+#endif
+
+
+KMID_EXPORT int kMidInit(void);
+KMID_EXPORT int kMidLoad(const char *filename);
+KMID_EXPORT int kMidPlay(void);
+KMID_EXPORT int kMidStop(void);
+KMID_EXPORT void kMidDestruct(void);
+KMID_EXPORT int kMidIsPlaying(void);
+KMID_EXPORT int kMidDevices(void);
+KMID_EXPORT const char * kMidName(int i);
+KMID_EXPORT const char * kMidType(int i);
+KMID_EXPORT void kMidSetDevice(int i);
+KMID_EXPORT void kMidSetMidiMapper(const char *mapfilename);
+KMID_EXPORT const char * kMidVersion(void);
+KMID_EXPORT const char * kMidCopyright(void);
+
+
+
+#ifdef __cplusplus
+
+}
+
+/**
+ * @internal
+ */
+extern struct kMidData
+{
+ class DeviceManager *midi;
+ class MidiPlayer *player;
+ class MidiMapper *map;
+ struct PlayerController *pctl;
+ int pctlsmID;
+ int pid;
+} kMid;
+#endif
+
+
+#endif