Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-
#if USE_OPENAL
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#ifdef _WIN32
-#include <malloc.h>
-#endif
-
-#include "MacCompatibility.h"
-#include "fmod.h"
-
-#include "al.h"
-#include "alc.h"
-
-#include "ogg/ogg.h"
-#include "vorbis/vorbisfile.h"
+#include "openal_wrapper.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
#define unload_alsyms()
#endif
-
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;
- float min_distance;
-} 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 bool initialized = false;
static float listener_position[3];
-
-static inline bool source_too_close(const int channel)
-{
- const OPENAL_Channels *chan = &channels[channel];
- const float *pos = chan->position;
- const float distance = sqrtf(powf((pos[0] - listener_position[0]), 2.0f) +
- powf((pos[1] - listener_position[1]), 2.0f) +
- powf((pos[2] - listener_position[2]), 2.0f));
- return (distance <= chan->sample->min_distance);
-}
-
-
static void set_channel_position(const int channel, const float x,
const float y, const float z)
{
chan->position[1] = y;
chan->position[2] = z;
- FSOUND_SAMPLE *sptr = chan->sample;
+ OPENAL_SAMPLE *sptr = chan->sample;
if (sptr == NULL)
return;
const ALuint sid = chan->sid;
- const bool no_attenuate = ((sptr->is2d) || (source_too_close(channel)));
+ const bool no_attenuate = sptr->is2d;
if (no_attenuate)
{
}
-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)
+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)
}
}
-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;
return true;
}
-void F_API OPENAL_3D_SetDopplerFactor(float scale)
+AL_API void OPENAL_3D_SetDopplerFactor(float scale)
{
if (!initialized) return;
// unimplemented...looks like init routines just call this with scale == 0.0f anyhow.
}
-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;
return true;
}
-void F_API OPENAL_Close()
+AL_API void OPENAL_Close()
{
if (!initialized) return;
initialized = false;
}
-FSOUND_SAMPLE *F_API OPENAL_GetCurrentSample(int channel)
+AL_API OPENAL_SAMPLE *OPENAL_GetCurrentSample(int channel)
{
if (!initialized) return NULL;
if ((channel < 0) || (channel >= num_channels)) return NULL;
return channels[channel].sample;
}
-signed char F_API OPENAL_GetPaused(int channel)
+AL_API signed char OPENAL_GetPaused(int channel)
{
if (!initialized) return false;
if ((channel < 0) || (channel >= num_channels)) return false;
return((state == AL_PAUSED) ? true : false);
}
-unsigned int F_API OPENAL_GetLoopMode(int channel)
+AL_API unsigned int OPENAL_GetLoopMode(int channel)
{
if (!initialized) return 0;
if ((channel < 0) || (channel >= num_channels)) return 0;
ALint loop = 0;
alGetSourceiv(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)
+AL_API signed char OPENAL_IsPlaying(int channel)
{
if (!initialized) return false;
if ((channel < 0) || (channel >= num_channels)) return false;
return((state == AL_PLAYING) ? true : false);
}
-int F_API OPENAL_PlaySoundEx(int channel, FSOUND_SAMPLE *sptr, FSOUND_DSPUNIT *dsp, signed char startpaused)
+AL_API 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)
+ if (channel == OPENAL_FREE)
{
for (int i = 0; i < num_channels; i++)
{
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_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);
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...
}
-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 (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 != FSOUND_HW3D) && (mode != FSOUND_2D)) return NULL; // this is all the game does...
+ if ((mode != OPENAL_HW3D) && (mode != OPENAL_2D)) return NULL; // this is all the game does...
- FSOUND_SAMPLE *retval = NULL;
+ OPENAL_SAMPLE *retval = NULL;
ALuint bufferName = 0;
ALenum format = AL_NONE;
ALsizei size = 0;
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)
}
}
-signed char F_API OPENAL_Sample_SetMode(FSOUND_SAMPLE *sptr, unsigned int mode)
+AL_API 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 ((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 mindist, float maxdist)
-{
- if (!initialized) return false;
- if (sptr == NULL) return false;
- sptr->min_distance = mindist;
- // we ignore maxdist. It's not really important to this game, and the
- // FMOD docs suggest that it's worthless anyhow.
-
- // recalc sources to see if we need to adjust attenuation.
- for (int i = 0; i < num_channels; i++)
- {
- if (channels[i].sample == sptr)
- {
- const float *p = channels[i].position;
- set_channel_position(i, p[0], p[1], p[2]);
- }
- }
-
- return 0;
-}
-
-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 (channel == OPENAL_ALL)
{
for (int i = 0; i < num_channels; i++)
OPENAL_SetFrequency(i, freq);
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 (channel == FSOUND_ALL)
+ if (channel == OPENAL_ALL)
{
for (int i = 0; i < num_channels; i++)
OPENAL_SetVolume(i, vol);
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 (channel == FSOUND_ALL)
+ if (channel == OPENAL_ALL)
{
for (int i = 0; i < num_channels; i++)
OPENAL_SetPaused(i, paused);
return true;
}
-void F_API OPENAL_SetSFXMasterVolume(int volume)
+AL_API void OPENAL_SetSFXMasterVolume(int volume)
{
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 (channel == FSOUND_ALL)
+ if (channel == OPENAL_ALL)
{
for (int i = 0; i < num_channels; i++)
OPENAL_StopSound(i);
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);
-}
-
-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)
+AL_API OPENAL_SAMPLE *OPENAL_Stream_GetSample(OPENAL_STREAM *stream)
{
if (!initialized) return NULL;
- return (FSOUND_SAMPLE *) stream;
+ return (OPENAL_SAMPLE *) stream;
}
-int F_API OPENAL_Stream_PlayEx(int channel, FSOUND_STREAM *stream, FSOUND_DSPUNIT *dsp, signed char startpaused)
+AL_API 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)
+AL_API 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)
+ if (channels[i].sample == (OPENAL_SAMPLE *) stream)
{
alSourceStop(channels[i].sid);
channels[i].startpaused = false;
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;
alcProcessContext(alcGetCurrentContext());
}
-signed char F_API OPENAL_SetOutput(int outputtype)
+AL_API signed char OPENAL_SetOutput(int outputtype)
{
return true;
}
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