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https://github.com/DrBeef/Raze.git
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497 lines
12 KiB
C++
497 lines
12 KiB
C++
/*
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** i_sound.cpp
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** Stubs for sound interfaces.
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "oalsound.h"
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#include "i_module.h"
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#include "cmdlib.h"
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#include "c_dispatch.h"
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#include "i_music.h"
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#include "m_argv.h"
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#include "v_text.h"
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#include "c_cvars.h"
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#include "stats.h"
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#include <zmusic.h>
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EXTERN_CVAR (Float, snd_sfxvolume)
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EXTERN_CVAR(Float, snd_musicvolume)
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CUSTOM_CVAR(Int, snd_samplerate, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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{
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if (self != 0 && self != 8000 && self != 11025 && self != 22050 && self != 32000 && self != 44100 && self != 48000)
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{
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self = 0;
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return;
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}
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}
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CVAR(Int, snd_buffersize, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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CVAR(Int, snd_hrtf, -1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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#if !defined(NO_OPENAL)
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#define DEF_BACKEND "openal"
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#else
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#define DEF_BACKEND "null"
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#endif
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CVAR(String, snd_backend, DEF_BACKEND, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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// killough 2/21/98: optionally use varying pitched sounds
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CVAR (Bool, snd_pitched, false, CVAR_ARCHIVE)
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SoundRenderer *GSnd;
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bool nosound;
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bool nosfx;
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void I_CloseSound ();
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//
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// SFX API
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//
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//==========================================================================
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//
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// CVAR snd_mastervolume
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//
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// Maximum volume of all audio
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//==========================================================================
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CUSTOM_CVAR(Float, snd_mastervolume, 1.f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
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{
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if (self < 0.f)
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self = 0.f;
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else if (self > 1.f)
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self = 1.f;
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ChangeMusicSetting(zmusic_snd_mastervolume, nullptr, self);
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snd_sfxvolume->Callback();
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snd_musicvolume->Callback();
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}
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//==========================================================================
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//
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// CVAR snd_sfxvolume
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//
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// Maximum volume of a sound effect.
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//==========================================================================
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CUSTOM_CVAR (Float, snd_sfxvolume, 1.f, CVAR_ARCHIVE|CVAR_GLOBALCONFIG|CVAR_NOINITCALL)
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{
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if (self < 0.f)
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self = 0.f;
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else if (self > 1.f)
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self = 1.f;
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else if (GSnd != NULL)
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{
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GSnd->SetSfxVolume (self * snd_mastervolume);
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}
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}
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class MIDIStreamer;
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class NullSoundRenderer : public SoundRenderer
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{
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public:
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virtual bool IsNull() { return true; }
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void SetSfxVolume (float volume)
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{
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}
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void SetMusicVolume (float volume)
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{
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}
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SoundHandle LoadSound(uint8_t *sfxdata, int length)
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{
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SoundHandle retval = { NULL };
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return retval;
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}
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SoundHandle LoadSoundRaw(uint8_t *sfxdata, int length, int frequency, int channels, int bits, int loopstart, int loopend)
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{
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SoundHandle retval = { NULL };
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return retval;
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}
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void UnloadSound (SoundHandle sfx)
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{
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}
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unsigned int GetMSLength(SoundHandle sfx)
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{
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// Return something that isn't 0. This is only used by some
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// ambient sounds to specify a default minimum period.
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return 250;
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}
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unsigned int GetSampleLength(SoundHandle sfx)
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{
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return 0;
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}
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float GetOutputRate()
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{
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return 11025; // Lies!
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}
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void StopChannel(FISoundChannel *chan)
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{
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}
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void ChannelVolume(FISoundChannel *, float)
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{
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}
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void ChannelPitch(FISoundChannel *, float)
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{
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}
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// Streaming sounds.
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SoundStream *CreateStream (SoundStreamCallback callback, int buffbytes, int flags, int samplerate, void *userdata)
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{
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return NULL;
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}
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// Starts a sound.
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FISoundChannel *StartSound (SoundHandle sfx, float vol, int pitch, int chanflags, FISoundChannel *reuse_chan, float startTime)
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{
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return NULL;
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}
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FISoundChannel *StartSound3D (SoundHandle sfx, SoundListener *listener, float vol, FRolloffInfo *rolloff, float distscale, int pitch, int priority, const FVector3 &pos, const FVector3 &vel, int channum, int chanflags, FISoundChannel *reuse_chan, float startTime)
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{
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return NULL;
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}
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// Marks a channel's start time without actually playing it.
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void MarkStartTime (FISoundChannel *chan, float startTime)
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{
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}
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// Returns position of sound on this channel, in samples.
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unsigned int GetPosition(FISoundChannel *chan)
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{
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return 0;
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}
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// Gets a channel's audibility (real volume).
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float GetAudibility(FISoundChannel *chan)
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{
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return 0;
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}
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// Synchronizes following sound startups.
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void Sync (bool sync)
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{
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}
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// Pauses or resumes all sound effect channels.
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void SetSfxPaused (bool paused, int slot)
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{
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}
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// Pauses or resumes *every* channel, including environmental reverb.
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void SetInactive(SoundRenderer::EInactiveState inactive)
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{
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}
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// Updates the volume, separation, and pitch of a sound channel.
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void UpdateSoundParams3D (SoundListener *listener, FISoundChannel *chan, bool areasound, const FVector3 &pos, const FVector3 &vel)
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{
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}
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void UpdateListener (SoundListener *)
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{
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}
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void UpdateSounds ()
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{
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}
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bool IsValid ()
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{
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return true;
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}
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void PrintStatus ()
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{
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Printf("Null sound module active.\n");
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}
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void PrintDriversList ()
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{
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Printf("Null sound module uses no drivers.\n");
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}
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FString GatherStats ()
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{
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return "Null sound module has no stats.";
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}
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};
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void I_InitSound ()
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{
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FModule_SetProgDir(progdir);
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/* Get command line options: */
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nosound = !!Args->CheckParm ("-nosound");
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nosfx = !!Args->CheckParm ("-nosfx");
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GSnd = NULL;
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if (nosound)
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{
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GSnd = new NullSoundRenderer;
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return;
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}
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// Keep it simple: let everything except "null" init the sound.
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if (stricmp(snd_backend, "null") == 0)
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{
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GSnd = new NullSoundRenderer;
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}
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else
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{
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#ifndef NO_OPENAL
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if (IsOpenALPresent())
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{
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GSnd = new OpenALSoundRenderer;
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}
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#endif
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}
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if (!GSnd || !GSnd->IsValid ())
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{
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I_CloseSound();
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GSnd = new NullSoundRenderer;
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Printf (TEXTCOLOR_RED"Sound init failed. Using nosound.\n");
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}
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snd_sfxvolume->Callback ();
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}
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void I_CloseSound ()
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{
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// Free all loaded samples. Beware that the sound engine may already have been deleted.
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if (soundEngine) soundEngine->UnloadAllSounds();
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delete GSnd;
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GSnd = NULL;
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}
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const char *GetSampleTypeName(SampleType type)
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{
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switch(type)
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{
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case SampleType_UInt8: return "Unsigned 8-bit";
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case SampleType_Int16: return "Signed 16-bit";
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default: break;
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}
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return "(invalid sample type)";
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}
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const char *GetChannelConfigName(ChannelConfig chan)
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{
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switch(chan)
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{
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case ChannelConfig_Mono: return "Mono";
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case ChannelConfig_Stereo: return "Stereo";
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}
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return "(invalid channel config)";
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}
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SoundRenderer::SoundRenderer ()
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{
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}
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SoundRenderer::~SoundRenderer ()
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{
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}
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FString SoundRenderer::GatherStats ()
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{
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return "No stats for this sound renderer.";
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}
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void SoundRenderer::DrawWaveDebug(int mode)
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{
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}
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FString SoundStream::GetStats()
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{
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return "No stream stats available.";
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}
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//==========================================================================
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//
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// SoundRenderer :: LoadSoundVoc
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//
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//==========================================================================
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SoundHandle SoundRenderer::LoadSoundVoc(uint8_t *sfxdata, int length)
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{
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uint8_t * data = NULL;
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int len, frequency, channels, bits, loopstart, loopend;
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len = frequency = channels = bits = 0;
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loopstart = loopend = -1;
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do if (length > 26)
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{
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// First pass to parse data and validate the file
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if (strncmp ((const char *)sfxdata, "Creative Voice File", 19))
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break;
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int i = 26, blocktype = 0, blocksize = 0, codec = -1;
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bool noextra = true, okay = true;
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while (i < length)
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{
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// Read block header
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blocktype = sfxdata[i];
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if (blocktype == 0)
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break;
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blocksize = sfxdata[i+1] + (sfxdata[i+2]<<8) + (sfxdata[i+3]<<16);
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i += 4;
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if (i + blocksize > length)
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{
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//okay = false;
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break;
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}
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// Read block data
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switch (blocktype)
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{
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case 1: // Sound data
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if (/*noextra &*/ (codec == -1 || codec == sfxdata[i + 1])) // NAM contains a VOC where a valid data block follows an extra block.
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{
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frequency = 1000000 / (256 - sfxdata[i]);
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channels = 1;
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codec = sfxdata[i + 1];
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if (codec == 0)
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bits = 8;
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else if (codec == 4)
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bits = 16;
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else okay = false;
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len += blocksize - 2;
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}
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else okay = false;
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break;
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case 2: // Sound data continuation
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if (codec == -1)
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okay = false;
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len += blocksize;
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break;
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case 3: // Silence
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if (frequency == 1000000/(256 - sfxdata[i+2]))
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{
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int silength = 1 + sfxdata[i] + (sfxdata[i+1]<<8);
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if (codec == 0) // 8-bit unsigned PCM
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len += silength;
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else if (codec == 4) // 16-bit signed PCM
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len += silength<<1;
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else okay = false;
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} else okay = false;
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break;
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case 4: // Mark (ignored)
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case 5: // Text (ignored)
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break;
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case 6: // Repeat start
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loopstart = len;
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break;
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case 7: // Repeat end
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loopend = len;
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if (loopend < loopstart)
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okay = false;
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break;
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case 8: // Extra info
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noextra = false;
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if (codec == -1)
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{
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codec = sfxdata[i+2];
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channels = 1+sfxdata[i+3];
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frequency = 256000000/(channels * (65536 - (sfxdata[i]+(sfxdata[i+1]<<8))));
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} else okay = false;
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break;
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case 9: // Sound data in new format
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if (codec == -1)
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{
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frequency = sfxdata[i] + (sfxdata[i+1]<<8) + (sfxdata[i+2]<<16) + (sfxdata[i+3]<<24);
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bits = sfxdata[i+4];
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channels = sfxdata[i+5];
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codec = sfxdata[i+6] + (sfxdata[i+7]<<8);
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if (codec == 0)
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bits = 8;
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else if (codec == 4)
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bits = 16;
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else okay = false;
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len += blocksize - 12;
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} else okay = false;
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break;
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default: // Unknown block type
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okay = false;
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DPrintf (DMSG_ERROR, "Unknown VOC block type %i\n", blocktype);
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break;
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}
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// Move to next block
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i += blocksize;
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}
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// Second pass to write the data
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if (okay && len > 0)
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{
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data = new uint8_t[len];
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i = 26;
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int j = 0;
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while (i < length)
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{
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// Read block header again
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blocktype = sfxdata[i];
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if (blocktype == 0) break;
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blocksize = sfxdata[i+1] + (sfxdata[i+2]<<8) + (sfxdata[i+3]<<16);
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i += 4;
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switch (blocktype)
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{
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case 1: memcpy(data+j, sfxdata+i+2, blocksize-2 ); j += blocksize-2; break;
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case 2: memcpy(data+j, sfxdata+i, blocksize ); j += blocksize; break;
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case 9: memcpy(data+j, sfxdata+i+12, blocksize-12); j += blocksize-12; break;
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case 3:
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{
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int silength = 1 + sfxdata[i] + (sfxdata[i+1]<<8);
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if (bits == 8)
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{
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memset(data+j, 128, silength);
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j += silength;
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}
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else if (bits == -16)
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{
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memset(data+j, 0, silength<<1);
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j += silength<<1;
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}
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}
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break;
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default: break;
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}
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i += blocksize;
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}
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}
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} while (false);
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SoundHandle retval = LoadSoundRaw(data, len, frequency, channels, bits, loopstart, loopend);
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if (data) delete[] data;
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return retval;
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}
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