+/*
+Copyright (C) 2003, 2010 - Wolfire Games
-#if USE_OPENAL
+This file is part of Lugaru.
+
+Lugaru 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 2 of the License, or
+(at your option) any later version.
+
+Lugaru 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 Lugaru. If not, see <http://www.gnu.org/licenses/>.
+*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include "MacCompatibility.h"
-#include "fmod.h"
-
-#include "AL/al.h"
-#include "AL/alc.h"
-
-#include "ogg/ogg.h"
-#include "vorbis/vorbisfile.h"
+#include "Quaternions.h"
+#include "openal_wrapper.h"
+#include "Sounds.h"
// NOTE:
// FMOD uses a Left Handed Coordinate system, OpenAL uses a Right Handed
// one...so we just need to flip the sign on the Z axis when appropriate.
-
#define DYNAMIC_LOAD_OPENAL 0
#if DYNAMIC_LOAD_OPENAL
return false;
*func = dlsym(aldlhandle, funcname);
- if (*func == NULL)
- {
+ if (*func == NULL) {
fprintf(stderr, "Failed to find OpenAL symbol \"%s\" in \"%s\"\n",
- funcname, libname);
+ funcname, libname);
return false;
}
return true;
static void unload_alsyms(void)
{
- #define AL_FUNC(t,ret,fn,params,call,rt) p##fn = NULL;
- #include "alstubs.h"
- #undef AL_FUNC
- if (aldlhandle)
- {
+#define AL_FUNC(t,ret,fn,params,call,rt) p##fn = NULL;
+#include "alstubs.h"
+#undef AL_FUNC
+ if (aldlhandle) {
dlclose(aldlhandle);
aldlhandle = NULL;
}
static bool lookup_all_alsyms(const char *libname)
{
- if (!aldlhandle)
- {
+ if (!aldlhandle) {
if ( (aldlhandle = dlopen(libname, RTLD_GLOBAL | RTLD_NOW)) == NULL )
return false;
}
bool retval = true;
- #define AL_FUNC(t,ret,fn,params,call,rt) \
+#define AL_FUNC(t,ret,fn,params,call,rt) \
if (!lookup_alsym(#fn, (void **) &p##fn, libname)) retval = false;
- #include "alstubs.h"
- #undef AL_FUNC
+#include "alstubs.h"
+#undef AL_FUNC
if (!retval)
unload_alsyms();
#define unload_alsyms()
#endif
-
-typedef struct
-{
+typedef struct {
ALuint sid;
- FSOUND_SAMPLE *sample;
+ OPENAL_SAMPLE *sample;
bool startpaused;
+ float position[3];
} OPENAL_Channels;
-typedef struct FSOUND_SAMPLE
-{
- char *name;
- ALuint bid; // buffer id.
- int mode;
- int is2d;
-} FSOUND_SAMPLE;
-
-typedef struct FSOUND_STREAM
-{
+typedef struct OPENAL_SAMPLE {
char *name;
ALuint bid; // buffer id.
int mode;
int is2d;
-} FSOUND_STREAM;
+} OPENAL_SAMPLE;
static size_t num_channels = 0;
-static OPENAL_Channels *channels = NULL;
+static OPENAL_Channels *impl_channels = NULL;
static bool initialized = false;
+static float listener_position[3];
+static void set_channel_position(const int channel, const float x,
+ const float y, const float z)
+{
+ OPENAL_Channels *chan = &impl_channels[channel];
+
+ chan->position[0] = x;
+ chan->position[1] = y;
+ chan->position[2] = z;
+
+ OPENAL_SAMPLE *sptr = chan->sample;
+ if (sptr == NULL)
+ return;
-void F_API OPENAL_3D_Listener_SetAttributes(const float *pos, const float *vel, float fx, float fy, float fz, float tx, float ty, float tz)
+ const ALuint sid = chan->sid;
+ const bool no_attenuate = sptr->is2d;
+
+ if (no_attenuate) {
+ alSourcei(sid, AL_SOURCE_RELATIVE, AL_TRUE);
+ alSource3f(sid, AL_POSITION, 0.0f, 0.0f, 0.0f);
+ } else {
+ alSourcei(sid, AL_SOURCE_RELATIVE, AL_FALSE);
+ alSource3f(sid, AL_POSITION, x, y, z);
+ }
+}
+
+
+AL_API void OPENAL_3D_Listener_SetAttributes(const float *pos, const float *vel, float fx, float fy, float fz, float tx, float ty, float tz)
{
- if (!initialized) return;
- if (pos != NULL)
+ if (!initialized)
+ return;
+ if (pos != NULL) {
alListener3f(AL_POSITION, pos[0], pos[1], -pos[2]);
+ listener_position[0] = pos[0];
+ listener_position[1] = pos[1];
+ listener_position[2] = -pos[2];
+ }
+
ALfloat vec[6] = { fx, fy, -fz, tz, ty, -tz };
alListenerfv(AL_ORIENTATION, vec);
// we ignore velocity, since doppler's broken in the Linux AL at the moment...
+
+ // adjust existing positions...
+ for (int i = 0; i < num_channels; i++) {
+ const float *p = impl_channels[i].position;
+ set_channel_position(i, p[0], p[1], p[2]);
+ }
}
-signed char F_API OPENAL_3D_SetAttributes(int channel, const float *pos, const float *vel)
+AL_API signed char OPENAL_3D_SetAttributes(int channel, const float *pos, const float *vel)
{
- if (!initialized) return FALSE;
- if ((channel < 0) || (channel >= num_channels)) return FALSE;
+ if (!initialized)
+ return false;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
- if ((pos != NULL) && (!channels[channel].sample->is2d))
- alSource3f(channels[channel].sid, AL_POSITION, pos[0], pos[1], -pos[2]);
+ if (pos != NULL)
+ set_channel_position(channel, pos[0], pos[1], -pos[2]);
// we ignore velocity, since doppler's broken in the Linux AL at the moment...
- return TRUE;
+
+ return true;
}
-void F_API OPENAL_3D_SetDopplerFactor(float scale)
+AL_API signed char OPENAL_3D_SetAttributes_(int channel, const XYZ &pos, const float *vel)
{
- if (!initialized) return;
- // unimplemented...looks like init routines just call this with scale == 0.0f anyhow.
+ if (!initialized)
+ return false;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
+
+ set_channel_position(channel, pos.x, pos.y, -pos.z);
+
+ return true;
}
-signed char F_API OPENAL_Init(int mixrate, int maxsoftwarechannels, unsigned int flags)
+AL_API signed char OPENAL_Init(int mixrate, int maxsoftwarechannels, unsigned int flags)
{
- if (initialized) return FALSE;
- if (maxsoftwarechannels == 0) return FALSE;
+ if (initialized)
+ return false;
+ if (maxsoftwarechannels == 0)
+ return false;
if (flags != 0) // unsupported.
- return FALSE;
+ return false;
- if (!lookup_all_alsyms("./openal.so")) // !!! FIXME: linux specific lib name
- {
- if (!lookup_all_alsyms("openal.so.1")) // !!! FIXME: linux specific lib name
- {
+ if (!lookup_all_alsyms("./openal.so")) { // !!! FIXME: linux specific lib name
+ if (!lookup_all_alsyms("openal.so.1")) { // !!! FIXME: linux specific lib name
if (!lookup_all_alsyms("openal.so")) // !!! FIXME: linux specific lib name
- return FALSE;
+ return false;
}
}
ALCdevice *dev = alcOpenDevice(NULL);
if (!dev)
- return FALSE;
+ return false;
ALint caps[] = { ALC_FREQUENCY, mixrate, 0 };
ALCcontext *ctx = alcCreateContext(dev, caps);
- if (!ctx)
- {
+ if (!ctx) {
alcCloseDevice(dev);
- return FALSE;
+ return false;
}
alcMakeContextCurrent(ctx);
alcProcessContext(ctx);
- bool cmdline(const char *cmd);
- if (cmdline("openalinfo"))
- {
+ bool cmdline(const char * cmd);
+ if (cmdline("openalinfo")) {
printf("AL_VENDOR: %s\n", (char *) alGetString(AL_VENDOR));
printf("AL_RENDERER: %s\n", (char *) alGetString(AL_RENDERER));
printf("AL_VERSION: %s\n", (char *) alGetString(AL_VERSION));
}
num_channels = maxsoftwarechannels;
- channels = new OPENAL_Channels[maxsoftwarechannels];
- memset(channels, '\0', sizeof (OPENAL_Channels) * num_channels);
+ impl_channels = new OPENAL_Channels[maxsoftwarechannels];
+ memset(impl_channels, '\0', sizeof (OPENAL_Channels) * num_channels);
for (int i = 0; i < num_channels; i++)
- alGenSources(1, &channels[i].sid); // !!! FIXME: verify this didn't fail!
+ alGenSources(1, &impl_channels[i].sid); // !!! FIXME: verify this didn't fail!
initialized = true;
- return TRUE;
+ return true;
}
-void F_API OPENAL_Close()
+AL_API void OPENAL_Close()
{
- if (!initialized) return;
+ if (!initialized)
+ return;
ALCcontext *ctx = alcGetCurrentContext();
- if (ctx)
- {
- for (int i = 0; i < num_channels; i++)
- {
- alSourceStop(channels[i].sid);
- alSourcei(channels[i].sid, AL_BUFFER, 0);
- alDeleteSources(1, &channels[i].sid);
+ if (ctx) {
+ for (int i = 0; i < num_channels; i++) {
+ alSourceStop(impl_channels[i].sid);
+ alSourcei(impl_channels[i].sid, AL_BUFFER, 0);
+ alDeleteSources(1, &impl_channels[i].sid);
}
ALCdevice *dev = alcGetContextsDevice(ctx);
alcMakeContextCurrent(NULL);
}
num_channels = 0;
- delete[] channels;
- channels = NULL;
+ delete[] impl_channels;
+ impl_channels = NULL;
unload_alsyms();
initialized = false;
}
-FSOUND_SAMPLE *F_API OPENAL_GetCurrentSample(int channel)
+static OPENAL_SAMPLE *OPENAL_GetCurrentSample(int channel)
{
- if (!initialized) return NULL;
- if ((channel < 0) || (channel >= num_channels)) return NULL;
- return channels[channel].sample;
+ if (!initialized)
+ return NULL;
+ if ((channel < 0) || (channel >= num_channels))
+ return NULL;
+ return impl_channels[channel].sample;
}
-signed char F_API OPENAL_GetPaused(int channel)
+static signed char OPENAL_GetPaused(int channel)
{
- if (!initialized) return FALSE;
- if ((channel < 0) || (channel >= num_channels)) return FALSE;
- if (channels[channel].startpaused)
- return(TRUE);
+ if (!initialized)
+ return false;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
+ if (impl_channels[channel].startpaused)
+ return(true);
ALint state = 0;
- alGetSourceiv(channels[channel].sid, AL_SOURCE_STATE, &state);
- return((state == AL_PAUSED) ? TRUE : FALSE);
+ alGetSourceiv(impl_channels[channel].sid, AL_SOURCE_STATE, &state);
+ return((state == AL_PAUSED) ? true : false);
}
-unsigned int F_API OPENAL_GetLoopMode(int channel)
+static unsigned int OPENAL_GetLoopMode(int channel)
{
- if (!initialized) return 0;
- if ((channel < 0) || (channel >= num_channels)) return 0;
+ if (!initialized)
+ return 0;
+ if ((channel < 0) || (channel >= num_channels))
+ return 0;
ALint loop = 0;
- alGetSourceiv(channels[channel].sid, AL_LOOPING, &loop);
+ alGetSourceiv(impl_channels[channel].sid, AL_LOOPING, &loop);
if (loop)
- return(FSOUND_LOOP_NORMAL);
- return FSOUND_LOOP_OFF;
+ return(OPENAL_LOOP_NORMAL);
+ return OPENAL_LOOP_OFF;
}
-signed char F_API OPENAL_IsPlaying(int channel)
+static signed char OPENAL_IsPlaying(int channel)
{
- if (!initialized) return FALSE;
- if ((channel < 0) || (channel >= num_channels)) return FALSE;
+ if (!initialized)
+ return false;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
ALint state = 0;
- alGetSourceiv(channels[channel].sid, AL_SOURCE_STATE, &state);
- return((state == AL_PLAYING) ? TRUE : FALSE);
+ alGetSourceiv(impl_channels[channel].sid, AL_SOURCE_STATE, &state);
+ return((state == AL_PLAYING) ? true : false);
}
-int F_API OPENAL_PlaySoundEx(int channel, FSOUND_SAMPLE *sptr, FSOUND_DSPUNIT *dsp, signed char startpaused)
+static int OPENAL_PlaySoundEx(int channel, OPENAL_SAMPLE *sptr, OPENAL_DSPUNIT *dsp, signed char startpaused)
{
- if (!initialized) return -1;
- if (sptr == NULL) return -1;
- if (dsp != NULL) return -1;
- if (channel == FSOUND_FREE)
- {
- for (int i = 0; i < num_channels; i++)
- {
+ if (!initialized)
+ return -1;
+ if (sptr == NULL)
+ return -1;
+ if (dsp != NULL)
+ return -1;
+ if (channel == OPENAL_FREE) {
+ for (int i = 0; i < num_channels; i++) {
ALint state = 0;
- alGetSourceiv(channels[i].sid, AL_SOURCE_STATE, &state);
- if ((state != AL_PLAYING) && (state != AL_PAUSED))
- {
+ alGetSourceiv(impl_channels[i].sid, AL_SOURCE_STATE, &state);
+ if ((state != AL_PLAYING) && (state != AL_PAUSED)) {
channel = i;
break;
}
}
}
- if ((channel < 0) || (channel >= num_channels)) return -1;
- alSourceStop(channels[channel].sid);
- channels[channel].sample = sptr;
- alSourcei(channels[channel].sid, AL_BUFFER, sptr->bid);
- alSourcei(channels[channel].sid, AL_LOOPING, (sptr->mode == FSOUND_LOOP_OFF) ? AL_FALSE : AL_TRUE);
- alSourcei(channels[channel].sid, AL_SOURCE_RELATIVE, (sptr->is2d) ? AL_TRUE : AL_FALSE);
- alSource3f(channels[channel].sid, AL_POSITION, 0.0f, 0.0f, 0.0f);
+ if ((channel < 0) || (channel >= num_channels))
+ return -1;
+ alSourceStop(impl_channels[channel].sid);
+ impl_channels[channel].sample = sptr;
+ alSourcei(impl_channels[channel].sid, AL_BUFFER, sptr->bid);
+ alSourcei(impl_channels[channel].sid, AL_LOOPING, (sptr->mode == OPENAL_LOOP_OFF) ? AL_FALSE : AL_TRUE);
+ set_channel_position(channel, 0.0f, 0.0f, 0.0f);
- channels[channel].startpaused = ((startpaused) ? true : false);
+ impl_channels[channel].startpaused = ((startpaused) ? true : false);
if (!startpaused)
- alSourcePlay(channels[channel].sid);
+ alSourcePlay(impl_channels[channel].sid);
return channel;
}
static void *decode_to_pcm(const char *_fname, ALenum &format, ALsizei &size, ALuint &freq)
{
+#ifdef __POWERPC__
+ const int bigendian = 1;
+#else
+ const int bigendian = 0;
+#endif
+
// !!! FIXME: if it's not Ogg, we don't have a decoder. I'm lazy. :/
char *fname = (char *) alloca(strlen(_fname) + 16);
strcpy(fname, _fname);
char *ptr = strchr(fname, '.');
- if (ptr) *ptr = NULL;
+ if (ptr)
+ *ptr = '\0';
strcat(fname, ".ogg");
// just in case...
- #undef fopen
+#undef fopen
FILE *io = fopen(fname, "rb");
if (io == NULL)
return NULL;
ALubyte *retval = NULL;
- #if 0 // untested, so disable this!
+#if 0 // untested, so disable this!
// Can we just feed it to the AL compressed?
- if (alIsExtensionPresent((const ALubyte *) "AL_EXT_vorbis"))
- {
+ if (alIsExtensionPresent((const ALubyte *) "AL_EXT_vorbis")) {
format = alGetEnumValue((const ALubyte *) "AL_FORMAT_VORBIS_EXT");
freq = 44100;
fseek(io, 0, SEEK_END);
retval = (ALubyte *) malloc(size);
size_t rc = fread(retval, size, 1, io);
fclose(io);
- if (rc != 1)
- {
+ if (rc != 1) {
free(retval);
return NULL;
}
return retval;
}
- #endif
+#endif
// Uncompress and feed to the AL.
OggVorbis_File vf;
memset(&vf, '\0', sizeof (vf));
- if (ov_open(io, &vf, NULL, 0) == 0)
- {
+ if (ov_open(io, &vf, NULL, 0) == 0) {
int bitstream = 0;
vorbis_info *info = ov_info(&vf, -1);
size = 0;
format = (info->channels == 1) ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16;
freq = info->rate;
- if ((info->channels != 1) && (info->channels != 2))
- {
+ if ((info->channels != 1) && (info->channels != 2)) {
ov_clear(&vf);
return NULL;
}
long rc = 0;
size_t allocated = 64 * 1024;
retval = (ALubyte *) malloc(allocated);
- while ( (rc = ov_read(&vf, buf, sizeof (buf), 0, 2, 1, &bitstream)) != 0 )
- {
- if (rc > 0)
- {
+ while ( (rc = ov_read(&vf, buf, sizeof (buf), bigendian, 2, 1, &bitstream)) != 0 ) {
+ if (rc > 0) {
size += rc;
- if (size >= allocated)
- {
+ if (size >= allocated) {
allocated *= 2;
ALubyte *tmp = (ALubyte *) realloc(retval, allocated);
- if (tmp == NULL)
- {
+ if (tmp == NULL) {
free(retval);
retval = NULL;
break;
}
-FSOUND_SAMPLE * F_API OPENAL_Sample_Load(int index, const char *name_or_data, unsigned int mode, int offset, int length)
+AL_API OPENAL_SAMPLE *OPENAL_Sample_Load(int index, const char *name_or_data, unsigned int mode, int offset, int length)
{
- if (!initialized) return NULL;
- if (index != FSOUND_FREE) return NULL; // this is all the game does...
- if (offset != 0) return NULL; // this is all the game does...
- if (length != 0) return NULL; // this is all the game does...
- if ((mode != FSOUND_HW3D) && (mode != FSOUND_2D)) return NULL; // this is all the game does...
-
- FSOUND_SAMPLE *retval = NULL;
+ if (!initialized)
+ return NULL;
+ if (index != OPENAL_FREE)
+ return NULL; // this is all the game does...
+ if (offset != 0)
+ return NULL; // this is all the game does...
+ if (length != 0)
+ return NULL; // this is all the game does...
+ if ((mode != OPENAL_HW3D) && (mode != OPENAL_2D))
+ return NULL; // this is all the game does...
+
+ OPENAL_SAMPLE *retval = NULL;
ALuint bufferName = 0;
ALenum format = AL_NONE;
ALsizei size = 0;
ALuint bid = 0;
alGetError();
alGenBuffers(1, &bid);
- if (alGetError() == AL_NO_ERROR)
- {
+ if (alGetError() == AL_NO_ERROR) {
alBufferData(bid, format, data, size, frequency);
- retval = new FSOUND_SAMPLE;
+ retval = new OPENAL_SAMPLE;
retval->bid = bid;
- retval->mode = FSOUND_LOOP_OFF;
- retval->is2d = (mode == FSOUND_2D);
+ retval->mode = OPENAL_LOOP_OFF;
+ retval->is2d = (mode == OPENAL_2D);
retval->name = new char[strlen(name_or_data) + 1];
if (retval->name)
strcpy(retval->name, name_or_data);
return(retval);
}
-void F_API OPENAL_Sample_Free(FSOUND_SAMPLE *sptr)
+AL_API void OPENAL_Sample_Free(OPENAL_SAMPLE *sptr)
{
- if (!initialized) return;
- if (sptr)
- {
- for (int i = 0; i < num_channels; i++)
- {
- if (channels[i].sample == sptr)
- {
- alSourceStop(channels[i].sid);
- alSourcei(channels[i].sid, AL_BUFFER, 0);
- channels[i].sample = NULL;
+ if (!initialized)
+ return;
+ if (sptr) {
+ for (int i = 0; i < num_channels; i++) {
+ if (impl_channels[i].sample == sptr) {
+ alSourceStop(impl_channels[i].sid);
+ alSourcei(impl_channels[i].sid, AL_BUFFER, 0);
+ impl_channels[i].sample = NULL;
}
}
alDeleteBuffers(1, &sptr->bid);
}
}
-signed char F_API OPENAL_Sample_SetMode(FSOUND_SAMPLE *sptr, unsigned int mode)
+static signed char OPENAL_Sample_SetMode(OPENAL_SAMPLE *sptr, unsigned int mode)
{
- if (!initialized) return FALSE;
- if ((mode != FSOUND_LOOP_NORMAL) && (mode != FSOUND_LOOP_OFF)) return FALSE;
- if (!sptr) return FALSE;
+ if (!initialized)
+ return false;
+ if ((mode != OPENAL_LOOP_NORMAL) && (mode != OPENAL_LOOP_OFF))
+ return false;
+ if (!sptr)
+ return false;
sptr->mode = mode;
- return TRUE;
-}
-
-signed char F_API OPENAL_Sample_SetMinMaxDistance(FSOUND_SAMPLE *sptr, float min, float max)
-{
- if (!initialized) return FALSE;
- if (sptr == NULL) return FALSE;
- // !!! FIXME: write me
- return 0;
+ return true;
}
-signed char F_API OPENAL_SetFrequency(int channel, int freq)
+AL_API signed char OPENAL_SetFrequency(int channel, int freq)
{
- if (!initialized) return FALSE;
- if (channel == FSOUND_ALL)
- {
+ if (!initialized)
+ return false;
+ if (channel == OPENAL_ALL) {
for (int i = 0; i < num_channels; i++)
OPENAL_SetFrequency(i, freq);
- return TRUE;
+ return true;
}
- if ((channel < 0) || (channel >= num_channels)) return FALSE;
- if (freq == 8012) // hack
- alSourcef(channels[channel].sid, AL_PITCH, 8012.0f / 44100.0f);
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
+ if (freq == 8012)
+ // hack
+ alSourcef(impl_channels[channel].sid, AL_PITCH, 8012.0f / 44100.0f);
else
- alSourcef(channels[channel].sid, AL_PITCH, 1.0f);
- return TRUE;
+ alSourcef(impl_channels[channel].sid, AL_PITCH, 1.0f);
+ return true;
}
-signed char F_API OPENAL_SetVolume(int channel, int vol)
+AL_API signed char OPENAL_SetVolume(int channel, int vol)
{
- if (!initialized) return FALSE;
+ if (!initialized)
+ return false;
- if (channel == FSOUND_ALL)
- {
+ if (channel == OPENAL_ALL) {
for (int i = 0; i < num_channels; i++)
OPENAL_SetVolume(i, vol);
- return TRUE;
+ return true;
}
- if ((channel < 0) || (channel >= num_channels)) return FALSE;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
- if (vol < 0) vol = 0;
- else if (vol > 255) vol = 255;
+ if (vol < 0)
+ vol = 0;
+ else if (vol > 255)
+ vol = 255;
ALfloat gain = ((ALfloat) vol) / 255.0f;
- alSourcef(channels[channel].sid, AL_GAIN, gain);
- return TRUE;
+ alSourcef(impl_channels[channel].sid, AL_GAIN, gain);
+ return true;
}
-signed char F_API OPENAL_SetPaused(int channel, signed char paused)
+AL_API signed char OPENAL_SetPaused(int channel, signed char paused)
{
- if (!initialized) return FALSE;
+ if (!initialized)
+ return false;
- if (channel == FSOUND_ALL)
- {
+ if (channel == OPENAL_ALL) {
for (int i = 0; i < num_channels; i++)
OPENAL_SetPaused(i, paused);
- return TRUE;
+ return true;
}
- if ((channel < 0) || (channel >= num_channels)) return FALSE;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
ALint state = 0;
- if (channels[channel].startpaused)
+ if (impl_channels[channel].startpaused)
state = AL_PAUSED;
else
- alGetSourceiv(channels[channel].sid, AL_SOURCE_STATE, &state);
+ alGetSourceiv(impl_channels[channel].sid, AL_SOURCE_STATE, &state);
if ((paused) && (state == AL_PLAYING))
- alSourcePause(channels[channel].sid);
- else if ((!paused) && (state == AL_PAUSED))
- {
- alSourcePlay(channels[channel].sid);
- channels[channel].startpaused = false;
+ alSourcePause(impl_channels[channel].sid);
+ else if ((!paused) && (state == AL_PAUSED)) {
+ alSourcePlay(impl_channels[channel].sid);
+ impl_channels[channel].startpaused = false;
}
- return TRUE;
+ return true;
}
-void F_API OPENAL_SetSFXMasterVolume(int volume)
+AL_API void OPENAL_SetSFXMasterVolume(int volume)
{
- if (!initialized) return;
+ if (!initialized)
+ return;
ALfloat gain = ((ALfloat) volume) / 255.0f;
alListenerf(AL_GAIN, gain);
}
-signed char F_API OPENAL_StopSound(int channel)
+AL_API signed char OPENAL_StopSound(int channel)
{
- if (!initialized) return FALSE;
+ if (!initialized)
+ return false;
- if (channel == FSOUND_ALL)
- {
+ if (channel == OPENAL_ALL) {
for (int i = 0; i < num_channels; i++)
OPENAL_StopSound(i);
- return TRUE;
+ return true;
}
- if ((channel < 0) || (channel >= num_channels)) return FALSE;
- alSourceStop(channels[channel].sid);
- channels[channel].startpaused = false;
- return TRUE;
-}
-
-FSOUND_STREAM * F_API OPENAL_Stream_Open(const char *name_or_data, unsigned int mode, int offset, int length)
-{
- return (FSOUND_STREAM *) OPENAL_Sample_Load(FSOUND_FREE, name_or_data, mode, offset, length);
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
+ alSourceStop(impl_channels[channel].sid);
+ impl_channels[channel].startpaused = false;
+ return true;
}
-signed char F_API OPENAL_Stream_Close(FSOUND_STREAM *stream)
+AL_API void OPENAL_Stream_Close(OPENAL_STREAM *stream)
{
- OPENAL_Sample_Free((FSOUND_SAMPLE *) stream);
+ OPENAL_Sample_Free((OPENAL_SAMPLE *) stream);
}
-FSOUND_SAMPLE * F_API OPENAL_Stream_GetSample(FSOUND_STREAM *stream)
+static OPENAL_SAMPLE *OPENAL_Stream_GetSample(OPENAL_STREAM *stream)
{
- if (!initialized) return NULL;
- return (FSOUND_SAMPLE *) stream;
+ if (!initialized)
+ return NULL;
+ return (OPENAL_SAMPLE *) stream;
}
-int F_API OPENAL_Stream_PlayEx(int channel, FSOUND_STREAM *stream, FSOUND_DSPUNIT *dsp, signed char startpaused)
+static int OPENAL_Stream_PlayEx(int channel, OPENAL_STREAM *stream, OPENAL_DSPUNIT *dsp, signed char startpaused)
{
- return OPENAL_PlaySoundEx(channel, (FSOUND_SAMPLE *) stream, dsp, startpaused);
+ return OPENAL_PlaySoundEx(channel, (OPENAL_SAMPLE *) stream, dsp, startpaused);
}
-signed char F_API OPENAL_Stream_Stop(FSOUND_STREAM *stream)
+static signed char OPENAL_Stream_Stop(OPENAL_STREAM *stream)
{
- if (!initialized) return FALSE;
- for (int i = 0; i < num_channels; i++)
- {
- if (channels[i].sample == (FSOUND_SAMPLE *) stream)
- {
- alSourceStop(channels[i].sid);
- channels[i].startpaused = false;
+ if (!initialized)
+ return false;
+ for (int i = 0; i < num_channels; i++) {
+ if (impl_channels[i].sample == (OPENAL_SAMPLE *) stream) {
+ alSourceStop(impl_channels[i].sid);
+ impl_channels[i].startpaused = false;
}
}
- return TRUE;
+ return true;
}
-signed char F_API OPENAL_Stream_SetMode(FSOUND_STREAM *stream, unsigned int mode)
+AL_API signed char OPENAL_Stream_SetMode(OPENAL_STREAM *stream, unsigned int mode)
{
- return OPENAL_Sample_SetMode((FSOUND_SAMPLE *) stream, mode);
+ return OPENAL_Sample_SetMode((OPENAL_SAMPLE *) stream, mode);
}
-void F_API OPENAL_Update()
+AL_API void OPENAL_Update()
{
- if (!initialized) return;
+ if (!initialized)
+ return;
alcProcessContext(alcGetCurrentContext());
}
-signed char F_API OPENAL_SetOutput(int outputtype)
+AL_API signed char OPENAL_SetOutput(int outputtype)
{
- return TRUE;
+ return true;
}
-#endif
+extern int channels[];
+extern "C" void PlaySoundEx(int chan, OPENAL_SAMPLE *sptr, OPENAL_DSPUNIT *dsp, signed char startpaused)
+{
+ const OPENAL_SAMPLE * currSample = OPENAL_GetCurrentSample(channels[chan]);
+ if (currSample && currSample == samp[chan]) {
+ if (OPENAL_GetPaused(channels[chan])) {
+ OPENAL_StopSound(channels[chan]);
+ channels[chan] = OPENAL_FREE;
+ } else if (OPENAL_IsPlaying(channels[chan])) {
+ int loop_mode = OPENAL_GetLoopMode(channels[chan]);
+ if (loop_mode & OPENAL_LOOP_OFF) {
+ channels[chan] = OPENAL_FREE;
+ }
+ }
+ } else {
+ channels[chan] = OPENAL_FREE;
+ }
+
+ channels[chan] = OPENAL_PlaySoundEx(channels[chan], sptr, dsp, startpaused);
+ if (channels[chan] < 0) {
+ channels[chan] = OPENAL_PlaySoundEx(OPENAL_FREE, sptr, dsp, startpaused);
+ }
+}
+
+extern "C" void PlayStreamEx(int chan, OPENAL_STREAM *sptr, OPENAL_DSPUNIT *dsp, signed char startpaused)
+{
+ const OPENAL_SAMPLE * currSample = OPENAL_GetCurrentSample(channels[chan]);
+ if (currSample && currSample == OPENAL_Stream_GetSample(sptr)) {
+ OPENAL_StopSound(channels[chan]);
+ OPENAL_Stream_Stop(sptr);
+ } else {
+ OPENAL_Stream_Stop(sptr);
+ channels[chan] = OPENAL_FREE;
+ }
+
+ channels[chan] = OPENAL_Stream_PlayEx(channels[chan], sptr, dsp, startpaused);
+ if (channels[chan] < 0) {
+ channels[chan] = OPENAL_Stream_PlayEx(OPENAL_FREE, sptr, dsp, startpaused);
+ }
+}
projects / lugaru.git / blobdiff