--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/winutils/include/SDL_mixer.h Sat Jan 14 05:03:21 2012 +0100
@@ -0,0 +1,584 @@
+/*
+ SDL_mixer: An audio mixer library based on the SDL library
+ Copyright (C) 1997-2004 Sam Lantinga
+
+ 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; if not, write to the Free
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+
+/* $Id: SDL_mixer.h,v 1.30 2004/01/04 17:37:04 slouken Exp $ */
+
+#ifndef _SDL_MIXER_H
+#define _SDL_MIXER_H
+
+#include "SDL_types.h"
+#include "SDL_rwops.h"
+#include "SDL_audio.h"
+#include "SDL_byteorder.h"
+#include "SDL_version.h"
+#include "begin_code.h"
+
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL
+*/
+#define SDL_MIXER_MAJOR_VERSION 1
+#define SDL_MIXER_MINOR_VERSION 2
+#define SDL_MIXER_PATCHLEVEL 6
+
+/* This macro can be used to fill a version structure with the compile-time
+ * version of the SDL_mixer library.
+ */
+#define SDL_MIXER_VERSION(X) \
+{ \
+ (X)->major = SDL_MIXER_MAJOR_VERSION; \
+ (X)->minor = SDL_MIXER_MINOR_VERSION; \
+ (X)->patch = SDL_MIXER_PATCHLEVEL; \
+}
+
+/* Backwards compatibility */
+#define MIX_MAJOR_VERSION SDL_MIXER_MAJOR_VERSION
+#define MIX_MINOR_VERSION SDL_MIXER_MINOR_VERSION
+#define MIX_PATCHLEVEL SDL_MIXER_PATCHLEVEL
+#define MIX_VERSION(X) SDL_MIXER_VERSION(X)
+
+/* This function gets the version of the dynamically linked SDL_mixer library.
+ it should NOT be used to fill a version structure, instead you should
+ use the SDL_MIXER_VERSION() macro.
+ */
+extern DECLSPEC const SDL_version * SDLCALL Mix_Linked_Version(void);
+
+
+/* The default mixer has 8 simultaneous mixing channels */
+#ifndef MIX_CHANNELS
+#define MIX_CHANNELS 8
+#endif
+
+/* Good default values for a PC soundcard */
+#define MIX_DEFAULT_FREQUENCY 22050
+#if SDL_BYTEORDER == SDL_LIL_ENDIAN
+#define MIX_DEFAULT_FORMAT AUDIO_S16LSB
+#else
+#define MIX_DEFAULT_FORMAT AUDIO_S16MSB
+#endif
+#define MIX_DEFAULT_CHANNELS 2
+#define MIX_MAX_VOLUME 128 /* Volume of a chunk */
+
+/* The internal format for an audio chunk */
+typedef struct {
+ int allocated;
+ Uint8 *abuf;
+ Uint32 alen;
+ Uint8 volume; /* Per-sample volume, 0-128 */
+} Mix_Chunk;
+
+/* The different fading types supported */
+typedef enum {
+ MIX_NO_FADING,
+ MIX_FADING_OUT,
+ MIX_FADING_IN
+} Mix_Fading;
+
+typedef enum {
+ MUS_NONE,
+ MUS_CMD,
+ MUS_WAV,
+ MUS_MOD,
+ MUS_MID,
+ MUS_OGG,
+ MUS_MP3
+} Mix_MusicType;
+
+/* The internal format for a music chunk interpreted via mikmod */
+typedef struct _Mix_Music Mix_Music;
+
+/* Open the mixer with a certain audio format */
+extern DECLSPEC int SDLCALL Mix_OpenAudio(int frequency, Uint16 format, int channels,
+ int chunksize);
+
+/* Dynamically change the number of channels managed by the mixer.
+ If decreasing the number of channels, the upper channels are
+ stopped.
+ This function returns the new number of allocated channels.
+ */
+extern DECLSPEC int SDLCALL Mix_AllocateChannels(int numchans);
+
+/* Find out what the actual audio device parameters are.
+ This function returns 1 if the audio has been opened, 0 otherwise.
+ */
+extern DECLSPEC int SDLCALL Mix_QuerySpec(int *frequency,Uint16 *format,int *channels);
+
+/* Load a wave file or a music (.mod .s3m .it .xm) file */
+extern DECLSPEC Mix_Chunk * SDLCALL Mix_LoadWAV_RW(SDL_RWops *src, int freesrc);
+#define Mix_LoadWAV(file) Mix_LoadWAV_RW(SDL_RWFromFile(file, "rb"), 1)
+extern DECLSPEC Mix_Music * SDLCALL Mix_LoadMUS(const char *file);
+
+#ifdef USE_RWOPS /* This hasn't been hooked into music.c yet */
+/* Load a music file from an SDL_RWop object (MikMod-specific currently)
+ Matt Campbell (matt@campbellhome.dhs.org) April 2000 */
+extern DECLSPEC Mix_Music * SDLCALL Mix_LoadMUS_RW(SDL_RWops *rw);
+#endif
+
+/* Load a wave file of the mixer format from a memory buffer */
+extern DECLSPEC Mix_Chunk * SDLCALL Mix_QuickLoad_WAV(Uint8 *mem);
+
+/* Load raw audio data of the mixer format from a memory buffer */
+extern DECLSPEC Mix_Chunk * SDLCALL Mix_QuickLoad_RAW(Uint8 *mem, Uint32 len);
+
+/* Free an audio chunk previously loaded */
+extern DECLSPEC void SDLCALL Mix_FreeChunk(Mix_Chunk *chunk);
+extern DECLSPEC void SDLCALL Mix_FreeMusic(Mix_Music *music);
+
+/* Find out the music format of a mixer music, or the currently playing
+ music, if 'music' is NULL.
+*/
+extern DECLSPEC Mix_MusicType SDLCALL Mix_GetMusicType(const Mix_Music *music);
+
+/* Set a function that is called after all mixing is performed.
+ This can be used to provide real-time visual display of the audio stream
+ or add a custom mixer filter for the stream data.
+*/
+extern DECLSPEC void SDLCALL Mix_SetPostMix(void (*mix_func)
+ (void *udata, Uint8 *stream, int len), void *arg);
+
+/* Add your own music player or additional mixer function.
+ If 'mix_func' is NULL, the default music player is re-enabled.
+ */
+extern DECLSPEC void SDLCALL Mix_HookMusic(void (*mix_func)
+ (void *udata, Uint8 *stream, int len), void *arg);
+
+/* Add your own callback when the music has finished playing.
+ This callback is only called if the music finishes naturally.
+ */
+extern DECLSPEC void SDLCALL Mix_HookMusicFinished(void (*music_finished)(void));
+
+/* Get a pointer to the user data for the current music hook */
+extern DECLSPEC void * SDLCALL Mix_GetMusicHookData(void);
+
+/*
+ * Add your own callback when a channel has finished playing. NULL
+ * to disable callback. The callback may be called from the mixer's audio
+ * callback or it could be called as a result of Mix_HaltChannel(), etc.
+ * do not call SDL_LockAudio() from this callback; you will either be
+ * inside the audio callback, or SDL_mixer will explicitly lock the audio
+ * before calling your callback.
+ */
+extern DECLSPEC void SDLCALL Mix_ChannelFinished(void (*channel_finished)(int channel));
+
+
+/* Special Effects API by ryan c. gordon. (icculus@linuxgames.com) */
+
+#define MIX_CHANNEL_POST -2
+
+/* This is the format of a special effect callback:
+ *
+ * myeffect(int chan, void *stream, int len, void *udata);
+ *
+ * (chan) is the channel number that your effect is affecting. (stream) is
+ * the buffer of data to work upon. (len) is the size of (stream), and
+ * (udata) is a user-defined bit of data, which you pass as the last arg of
+ * Mix_RegisterEffect(), and is passed back unmolested to your callback.
+ * Your effect changes the contents of (stream) based on whatever parameters
+ * are significant, or just leaves it be, if you prefer. You can do whatever
+ * you like to the buffer, though, and it will continue in its changed state
+ * down the mixing pipeline, through any other effect functions, then finally
+ * to be mixed with the rest of the channels and music for the final output
+ * stream.
+ *
+ * DO NOT EVER call SDL_LockAudio() from your callback function!
+ */
+typedef void (*Mix_EffectFunc_t)(int chan, void *stream, int len, void *udata);
+
+/*
+ * This is a callback that signifies that a channel has finished all its
+ * loops and has completed playback. This gets called if the buffer
+ * plays out normally, or if you call Mix_HaltChannel(), implicitly stop
+ * a channel via Mix_AllocateChannels(), or unregister a callback while
+ * it's still playing.
+ *
+ * DO NOT EVER call SDL_LockAudio() from your callback function!
+ */
+typedef void (*Mix_EffectDone_t)(int chan, void *udata);
+
+
+/* Register a special effect function. At mixing time, the channel data is
+ * copied into a buffer and passed through each registered effect function.
+ * After it passes through all the functions, it is mixed into the final
+ * output stream. The copy to buffer is performed once, then each effect
+ * function performs on the output of the previous effect. Understand that
+ * this extra copy to a buffer is not performed if there are no effects
+ * registered for a given chunk, which saves CPU cycles, and any given
+ * effect will be extra cycles, too, so it is crucial that your code run
+ * fast. Also note that the data that your function is given is in the
+ * format of the sound device, and not the format you gave to Mix_OpenAudio(),
+ * although they may in reality be the same. This is an unfortunate but
+ * necessary speed concern. Use Mix_QuerySpec() to determine if you can
+ * handle the data before you register your effect, and take appropriate
+ * actions.
+ * You may also specify a callback (Mix_EffectDone_t) that is called when
+ * the channel finishes playing. This gives you a more fine-grained control
+ * than Mix_ChannelFinished(), in case you need to free effect-specific
+ * resources, etc. If you don't need this, you can specify NULL.
+ * You may set the callbacks before or after calling Mix_PlayChannel().
+ * Things like Mix_SetPanning() are just internal special effect functions,
+ * so if you are using that, you've already incurred the overhead of a copy
+ * to a separate buffer, and that these effects will be in the queue with
+ * any functions you've registered. The list of registered effects for a
+ * channel is reset when a chunk finishes playing, so you need to explicitly
+ * set them with each call to Mix_PlayChannel*().
+ * You may also register a special effect function that is to be run after
+ * final mixing occurs. The rules for these callbacks are identical to those
+ * in Mix_RegisterEffect, but they are run after all the channels and the
+ * music have been mixed into a single stream, whereas channel-specific
+ * effects run on a given channel before any other mixing occurs. These
+ * global effect callbacks are call "posteffects". Posteffects only have
+ * their Mix_EffectDone_t function called when they are unregistered (since
+ * the main output stream is never "done" in the same sense as a channel).
+ * You must unregister them manually when you've had enough. Your callback
+ * will be told that the channel being mixed is (MIX_CHANNEL_POST) if the
+ * processing is considered a posteffect.
+ *
+ * After all these effects have finished processing, the callback registered
+ * through Mix_SetPostMix() runs, and then the stream goes to the audio
+ * device.
+ *
+ * DO NOT EVER call SDL_LockAudio() from your callback function!
+ *
+ * returns zero if error (no such channel), nonzero if added.
+ * Error messages can be retrieved from Mix_GetError().
+ */
+extern DECLSPEC int SDLCALL Mix_RegisterEffect(int chan, Mix_EffectFunc_t f,
+ Mix_EffectDone_t d, void *arg);
+
+
+/* You may not need to call this explicitly, unless you need to stop an
+ * effect from processing in the middle of a chunk's playback.
+ * Posteffects are never implicitly unregistered as they are for channels,
+ * but they may be explicitly unregistered through this function by
+ * specifying MIX_CHANNEL_POST for a channel.
+ * returns zero if error (no such channel or effect), nonzero if removed.
+ * Error messages can be retrieved from Mix_GetError().
+ */
+extern DECLSPEC int SDLCALL Mix_UnregisterEffect(int channel, Mix_EffectFunc_t f);
+
+
+/* You may not need to call this explicitly, unless you need to stop all
+ * effects from processing in the middle of a chunk's playback. Note that
+ * this will also shut off some internal effect processing, since
+ * Mix_SetPanning() and others may use this API under the hood. This is
+ * called internally when a channel completes playback.
+ * Posteffects are never implicitly unregistered as they are for channels,
+ * but they may be explicitly unregistered through this function by
+ * specifying MIX_CHANNEL_POST for a channel.
+ * returns zero if error (no such channel), nonzero if all effects removed.
+ * Error messages can be retrieved from Mix_GetError().
+ */
+extern DECLSPEC int SDLCALL Mix_UnregisterAllEffects(int channel);
+
+
+#define MIX_EFFECTSMAXSPEED "MIX_EFFECTSMAXSPEED"
+
+/*
+ * These are the internally-defined mixing effects. They use the same API that
+ * effects defined in the application use, but are provided here as a
+ * convenience. Some effects can reduce their quality or use more memory in
+ * the name of speed; to enable this, make sure the environment variable
+ * MIX_EFFECTSMAXSPEED (see above) is defined before you call
+ * Mix_OpenAudio().
+ */
+
+
+/* Set the panning of a channel. The left and right channels are specified
+ * as integers between 0 and 255, quietest to loudest, respectively.
+ *
+ * Technically, this is just individual volume control for a sample with
+ * two (stereo) channels, so it can be used for more than just panning.
+ * If you want real panning, call it like this:
+ *
+ * Mix_SetPanning(channel, left, 255 - left);
+ *
+ * ...which isn't so hard.
+ *
+ * Setting (channel) to MIX_CHANNEL_POST registers this as a posteffect, and
+ * the panning will be done to the final mixed stream before passing it on
+ * to the audio device.
+ *
+ * This uses the Mix_RegisterEffect() API internally, and returns without
+ * registering the effect function if the audio device is not configured
+ * for stereo output. Setting both (left) and (right) to 255 causes this
+ * effect to be unregistered, since that is the data's normal state.
+ *
+ * returns zero if error (no such channel or Mix_RegisterEffect() fails),
+ * nonzero if panning effect enabled. Note that an audio device in mono
+ * mode is a no-op, but this call will return successful in that case.
+ * Error messages can be retrieved from Mix_GetError().
+ */
+extern DECLSPEC int SDLCALL Mix_SetPanning(int channel, Uint8 left, Uint8 right);
+
+
+/* Set the position of a channel. (angle) is an integer from 0 to 360, that
+ * specifies the location of the sound in relation to the listener. (angle)
+ * will be reduced as neccesary (540 becomes 180 degrees, -100 becomes 260).
+ * Angle 0 is due north, and rotates clockwise as the value increases.
+ * For efficiency, the precision of this effect may be limited (angles 1
+ * through 7 might all produce the same effect, 8 through 15 are equal, etc).
+ * (distance) is an integer between 0 and 255 that specifies the space
+ * between the sound and the listener. The larger the number, the further
+ * away the sound is. Using 255 does not guarantee that the channel will be
+ * culled from the mixing process or be completely silent. For efficiency,
+ * the precision of this effect may be limited (distance 0 through 5 might
+ * all produce the same effect, 6 through 10 are equal, etc). Setting (angle)
+ * and (distance) to 0 unregisters this effect, since the data would be
+ * unchanged.
+ *
+ * If you need more precise positional audio, consider using OpenAL for
+ * spatialized effects instead of SDL_mixer. This is only meant to be a
+ * basic effect for simple "3D" games.
+ *
+ * If the audio device is configured for mono output, then you won't get
+ * any effectiveness from the angle; however, distance attenuation on the
+ * channel will still occur. While this effect will function with stereo
+ * voices, it makes more sense to use voices with only one channel of sound,
+ * so when they are mixed through this effect, the positioning will sound
+ * correct. You can convert them to mono through SDL before giving them to
+ * the mixer in the first place if you like.
+ *
+ * Setting (channel) to MIX_CHANNEL_POST registers this as a posteffect, and
+ * the positioning will be done to the final mixed stream before passing it
+ * on to the audio device.
+ *
+ * This is a convenience wrapper over Mix_SetDistance() and Mix_SetPanning().
+ *
+ * returns zero if error (no such channel or Mix_RegisterEffect() fails),
+ * nonzero if position effect is enabled.
+ * Error messages can be retrieved from Mix_GetError().
+ */
+extern DECLSPEC int SDLCALL Mix_SetPosition(int channel, Sint16 angle, Uint8 distance);
+
+
+/* Set the "distance" of a channel. (distance) is an integer from 0 to 255
+ * that specifies the location of the sound in relation to the listener.
+ * Distance 0 is overlapping the listener, and 255 is as far away as possible
+ * A distance of 255 does not guarantee silence; in such a case, you might
+ * want to try changing the chunk's volume, or just cull the sample from the
+ * mixing process with Mix_HaltChannel().
+ * For efficiency, the precision of this effect may be limited (distances 1
+ * through 7 might all produce the same effect, 8 through 15 are equal, etc).
+ * (distance) is an integer between 0 and 255 that specifies the space
+ * between the sound and the listener. The larger the number, the further
+ * away the sound is.
+ * Setting (distance) to 0 unregisters this effect, since the data would be
+ * unchanged.
+ * If you need more precise positional audio, consider using OpenAL for
+ * spatialized effects instead of SDL_mixer. This is only meant to be a
+ * basic effect for simple "3D" games.
+ *
+ * Setting (channel) to MIX_CHANNEL_POST registers this as a posteffect, and
+ * the distance attenuation will be done to the final mixed stream before
+ * passing it on to the audio device.
+ *
+ * This uses the Mix_RegisterEffect() API internally.
+ *
+ * returns zero if error (no such channel or Mix_RegisterEffect() fails),
+ * nonzero if position effect is enabled.
+ * Error messages can be retrieved from Mix_GetError().
+ */
+extern DECLSPEC int SDLCALL Mix_SetDistance(int channel, Uint8 distance);
+
+
+/*
+ * !!! FIXME : Haven't implemented, since the effect goes past the
+ * end of the sound buffer. Will have to think about this.
+ * --ryan.
+ */
+#if 0
+/* Causes an echo effect to be mixed into a sound. (echo) is the amount
+ * of echo to mix. 0 is no echo, 255 is infinite (and probably not
+ * what you want).
+ *
+ * Setting (channel) to MIX_CHANNEL_POST registers this as a posteffect, and
+ * the reverbing will be done to the final mixed stream before passing it on
+ * to the audio device.
+ *
+ * This uses the Mix_RegisterEffect() API internally. If you specify an echo
+ * of zero, the effect is unregistered, as the data is already in that state.
+ *
+ * returns zero if error (no such channel or Mix_RegisterEffect() fails),
+ * nonzero if reversing effect is enabled.
+ * Error messages can be retrieved from Mix_GetError().
+ */
+extern no_parse_DECLSPEC int SDLCALL Mix_SetReverb(int channel, Uint8 echo);
+#endif
+
+/* Causes a channel to reverse its stereo. This is handy if the user has his
+ * speakers hooked up backwards, or you would like to have a minor bit of
+ * psychedelia in your sound code. :) Calling this function with (flip)
+ * set to non-zero reverses the chunks's usual channels. If (flip) is zero,
+ * the effect is unregistered.
+ *
+ * This uses the Mix_RegisterEffect() API internally, and thus is probably
+ * more CPU intensive than having the user just plug in his speakers
+ * correctly. Mix_SetReverseStereo() returns without registering the effect
+ * function if the audio device is not configured for stereo output.
+ *
+ * If you specify MIX_CHANNEL_POST for (channel), then this the effect is used
+ * on the final mixed stream before sending it on to the audio device (a
+ * posteffect).
+ *
+ * returns zero if error (no such channel or Mix_RegisterEffect() fails),
+ * nonzero if reversing effect is enabled. Note that an audio device in mono
+ * mode is a no-op, but this call will return successful in that case.
+ * Error messages can be retrieved from Mix_GetError().
+ */
+extern DECLSPEC int SDLCALL Mix_SetReverseStereo(int channel, int flip);
+
+/* end of effects API. --ryan. */
+
+
+/* Reserve the first channels (0 -> n-1) for the application, i.e. don't allocate
+ them dynamically to the next sample if requested with a -1 value below.
+ Returns the number of reserved channels.
+ */
+extern DECLSPEC int SDLCALL Mix_ReserveChannels(int num);
+
+/* Channel grouping functions */
+
+/* Attach a tag to a channel. A tag can be assigned to several mixer
+ channels, to form groups of channels.
+ If 'tag' is -1, the tag is removed (actually -1 is the tag used to
+ represent the group of all the channels).
+ Returns true if everything was OK.
+ */
+extern DECLSPEC int SDLCALL Mix_GroupChannel(int which, int tag);
+/* Assign several consecutive channels to a group */
+extern DECLSPEC int SDLCALL Mix_GroupChannels(int from, int to, int tag);
+/* Finds the first available channel in a group of channels,
+ returning -1 if none are available.
+ */
+extern DECLSPEC int SDLCALL Mix_GroupAvailable(int tag);
+/* Returns the number of channels in a group. This is also a subtle
+ way to get the total number of channels when 'tag' is -1
+ */
+extern DECLSPEC int SDLCALL Mix_GroupCount(int tag);
+/* Finds the "oldest" sample playing in a group of channels */
+extern DECLSPEC int SDLCALL Mix_GroupOldest(int tag);
+/* Finds the "most recent" (i.e. last) sample playing in a group of channels */
+extern DECLSPEC int SDLCALL Mix_GroupNewer(int tag);
+
+/* Play an audio chunk on a specific channel.
+ If the specified channel is -1, play on the first free channel.
+ If 'loops' is greater than zero, loop the sound that many times.
+ If 'loops' is -1, loop inifinitely (~65000 times).
+ Returns which channel was used to play the sound.
+*/
+#define Mix_PlayChannel(channel,chunk,loops) Mix_PlayChannelTimed(channel,chunk,loops,-1)
+/* The same as above, but the sound is played at most 'ticks' milliseconds */
+extern DECLSPEC int SDLCALL Mix_PlayChannelTimed(int channel, Mix_Chunk *chunk, int loops, int ticks);
+extern DECLSPEC int SDLCALL Mix_PlayMusic(Mix_Music *music, int loops);
+
+/* Fade in music or a channel over "ms" milliseconds, same semantics as the "Play" functions */
+extern DECLSPEC int SDLCALL Mix_FadeInMusic(Mix_Music *music, int loops, int ms);
+extern DECLSPEC int SDLCALL Mix_FadeInMusicPos(Mix_Music *music, int loops, int ms, double position);
+#define Mix_FadeInChannel(channel,chunk,loops,ms) Mix_FadeInChannelTimed(channel,chunk,loops,ms,-1)
+extern DECLSPEC int SDLCALL Mix_FadeInChannelTimed(int channel, Mix_Chunk *chunk, int loops, int ms, int ticks);
+
+/* Set the volume in the range of 0-128 of a specific channel or chunk.
+ If the specified channel is -1, set volume for all channels.
+ Returns the original volume.
+ If the specified volume is -1, just return the current volume.
+*/
+extern DECLSPEC int SDLCALL Mix_Volume(int channel, int volume);
+extern DECLSPEC int SDLCALL Mix_VolumeChunk(Mix_Chunk *chunk, int volume);
+extern DECLSPEC int SDLCALL Mix_VolumeMusic(int volume);
+
+/* Halt playing of a particular channel */
+extern DECLSPEC int SDLCALL Mix_HaltChannel(int channel);
+extern DECLSPEC int SDLCALL Mix_HaltGroup(int tag);
+extern DECLSPEC int SDLCALL Mix_HaltMusic(void);
+
+/* Change the expiration delay for a particular channel.
+ The sample will stop playing after the 'ticks' milliseconds have elapsed,
+ or remove the expiration if 'ticks' is -1
+*/
+extern DECLSPEC int SDLCALL Mix_ExpireChannel(int channel, int ticks);
+
+/* Halt a channel, fading it out progressively till it's silent
+ The ms parameter indicates the number of milliseconds the fading
+ will take.
+ */
+extern DECLSPEC int SDLCALL Mix_FadeOutChannel(int which, int ms);
+extern DECLSPEC int SDLCALL Mix_FadeOutGroup(int tag, int ms);
+extern DECLSPEC int SDLCALL Mix_FadeOutMusic(int ms);
+
+/* Query the fading status of a channel */
+extern DECLSPEC Mix_Fading SDLCALL Mix_FadingMusic(void);
+extern DECLSPEC Mix_Fading SDLCALL Mix_FadingChannel(int which);
+
+/* Pause/Resume a particular channel */
+extern DECLSPEC void SDLCALL Mix_Pause(int channel);
+extern DECLSPEC void SDLCALL Mix_Resume(int channel);
+extern DECLSPEC int SDLCALL Mix_Paused(int channel);
+
+/* Pause/Resume the music stream */
+extern DECLSPEC void SDLCALL Mix_PauseMusic(void);
+extern DECLSPEC void SDLCALL Mix_ResumeMusic(void);
+extern DECLSPEC void SDLCALL Mix_RewindMusic(void);
+extern DECLSPEC int SDLCALL Mix_PausedMusic(void);
+
+/* Set the current position in the music stream.
+ This returns 0 if successful, or -1 if it failed or isn't implemented.
+ This function is only implemented for MOD music formats (set pattern
+ order number) and for OGG music (set position in seconds), at the
+ moment.
+*/
+extern DECLSPEC int SDLCALL Mix_SetMusicPosition(double position);
+
+/* Check the status of a specific channel.
+ If the specified channel is -1, check all channels.
+*/
+extern DECLSPEC int SDLCALL Mix_Playing(int channel);
+extern DECLSPEC int SDLCALL Mix_PlayingMusic(void);
+
+/* Stop music and set external music playback command */
+extern DECLSPEC int SDLCALL Mix_SetMusicCMD(const char *command);
+
+/* Synchro value is set by MikMod from modules while playing */
+extern DECLSPEC int SDLCALL Mix_SetSynchroValue(int value);
+extern DECLSPEC int SDLCALL Mix_GetSynchroValue(void);
+
+/* Get the Mix_Chunk currently associated with a mixer channel
+ Returns NULL if it's an invalid channel, or there's no chunk associated.
+*/
+extern DECLSPEC Mix_Chunk * SDLCALL Mix_GetChunk(int channel);
+
+/* Close the mixer, halting all playing audio */
+extern DECLSPEC void SDLCALL Mix_CloseAudio(void);
+
+/* We'll use SDL for reporting errors */
+#define Mix_SetError SDL_SetError
+#define Mix_GetError SDL_GetError
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_MIXER_H */