#include <stdlib.h>
#include <string.h>
+#include "Quaternions.h"
#include "openal_wrapper.h"
+#include "Sounds.h"
// NOTE:
// FMOD uses a Left Handed Coordinate system, OpenAL uses a Right Handed
ALuint bid; // buffer id.
int mode;
int is2d;
- float min_distance;
} OPENAL_SAMPLE;
-typedef struct OPENAL_STREAM
-{
- char *name;
- ALuint bid; // buffer id.
- int mode;
- int is2d;
-} OPENAL_STREAM;
-
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 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)
{
- OPENAL_Channels *chan = &channels[channel];
+ OPENAL_Channels *chan = &impl_channels[channel];
chan->position[0] = x;
chan->position[1] = y;
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)
{
// adjust existing positions...
for (int i = 0; i < num_channels; i++)
{
- const float *p = channels[i].position;
+ const float *p = impl_channels[i].position;
set_channel_position(i, p[0], p[1], p[2]);
}
}
return true;
}
-AL_API void 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;
}
AL_API signed char OPENAL_Init(int mixrate, int maxsoftwarechannels, unsigned int flags)
}
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;
{
for (int i = 0; i < num_channels; i++)
{
- alSourceStop(channels[i].sid);
- alSourcei(channels[i].sid, AL_BUFFER, 0);
- alDeleteSources(1, &channels[i].sid);
+ 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;
}
-AL_API OPENAL_SAMPLE *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;
+ return impl_channels[channel].sample;
}
-AL_API signed char 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)
+ if (impl_channels[channel].startpaused)
return(true);
ALint state = 0;
- alGetSourceiv(channels[channel].sid, AL_SOURCE_STATE, &state);
+ alGetSourceiv(impl_channels[channel].sid, AL_SOURCE_STATE, &state);
return((state == AL_PAUSED) ? true : false);
}
-AL_API unsigned int OPENAL_GetLoopMode(int channel)
+static 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);
+ alGetSourceiv(impl_channels[channel].sid, AL_LOOPING, &loop);
if (loop)
return(OPENAL_LOOP_NORMAL);
return OPENAL_LOOP_OFF;
}
-AL_API signed char OPENAL_IsPlaying(int channel)
+static signed char OPENAL_IsPlaying(int channel)
{
if (!initialized) return false;
if ((channel < 0) || (channel >= num_channels)) return false;
ALint state = 0;
- alGetSourceiv(channels[channel].sid, AL_SOURCE_STATE, &state);
+ alGetSourceiv(impl_channels[channel].sid, AL_SOURCE_STATE, &state);
return((state == AL_PLAYING) ? true : false);
}
-AL_API int OPENAL_PlaySoundEx(int channel, OPENAL_SAMPLE *sptr, OPENAL_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;
for (int i = 0; i < num_channels; i++)
{
ALint state = 0;
- alGetSourceiv(channels[i].sid, AL_SOURCE_STATE, &state);
+ alGetSourceiv(impl_channels[i].sid, AL_SOURCE_STATE, &state);
if ((state != AL_PLAYING) && (state != AL_PAUSED))
{
channel = i;
}
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 == OPENAL_LOOP_OFF) ? AL_FALSE : AL_TRUE);
+ 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;
}
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...
{
for (int i = 0; i < num_channels; i++)
{
- if (channels[i].sample == sptr)
+ if (impl_channels[i].sample == sptr)
{
- alSourceStop(channels[i].sid);
- alSourcei(channels[i].sid, AL_BUFFER, 0);
- channels[i].sample = NULL;
+ alSourceStop(impl_channels[i].sid);
+ alSourcei(impl_channels[i].sid, AL_BUFFER, 0);
+ impl_channels[i].sample = NULL;
}
}
alDeleteBuffers(1, &sptr->bid);
}
}
-AL_API signed char OPENAL_Sample_SetMode(OPENAL_SAMPLE *sptr, unsigned int mode)
+static signed char OPENAL_Sample_SetMode(OPENAL_SAMPLE *sptr, unsigned int mode)
{
if (!initialized) return false;
if ((mode != OPENAL_LOOP_NORMAL) && (mode != OPENAL_LOOP_OFF)) return false;
return true;
}
-AL_API signed char OPENAL_Sample_SetMinMaxDistance(OPENAL_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;
-}
-
AL_API signed char OPENAL_SetFrequency(int channel, int freq)
{
if (!initialized) return false;
if ((channel < 0) || (channel >= num_channels)) return false;
if (freq == 8012) // hack
- alSourcef(channels[channel].sid, AL_PITCH, 8012.0f / 44100.0f);
+ alSourcef(impl_channels[channel].sid, AL_PITCH, 8012.0f / 44100.0f);
else
- alSourcef(channels[channel].sid, AL_PITCH, 1.0f);
+ alSourcef(impl_channels[channel].sid, AL_PITCH, 1.0f);
return true;
}
if (vol < 0) vol = 0;
else if (vol > 255) vol = 255;
ALfloat gain = ((ALfloat) vol) / 255.0f;
- alSourcef(channels[channel].sid, AL_GAIN, gain);
+ alSourcef(impl_channels[channel].sid, AL_GAIN, gain);
return true;
}
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);
+ alSourcePause(impl_channels[channel].sid);
else if ((!paused) && (state == AL_PAUSED))
{
- alSourcePlay(channels[channel].sid);
- channels[channel].startpaused = false;
+ alSourcePlay(impl_channels[channel].sid);
+ impl_channels[channel].startpaused = false;
}
return true;
}
}
if ((channel < 0) || (channel >= num_channels)) return false;
- alSourceStop(channels[channel].sid);
- channels[channel].startpaused = false;
+ alSourceStop(impl_channels[channel].sid);
+ impl_channels[channel].startpaused = false;
return true;
}
-AL_API OPENAL_STREAM *OPENAL_Stream_Open(const char *name_or_data, unsigned int mode, int offset, int length)
-{
- return (OPENAL_STREAM *) OPENAL_Sample_Load(OPENAL_FREE, name_or_data, mode, offset, length);
-}
-
AL_API void OPENAL_Stream_Close(OPENAL_STREAM *stream)
{
OPENAL_Sample_Free((OPENAL_SAMPLE *) stream);
}
-AL_API OPENAL_SAMPLE *OPENAL_Stream_GetSample(OPENAL_STREAM *stream)
+static OPENAL_SAMPLE *OPENAL_Stream_GetSample(OPENAL_STREAM *stream)
{
if (!initialized) return NULL;
return (OPENAL_SAMPLE *) stream;
}
-AL_API int OPENAL_Stream_PlayEx(int channel, OPENAL_STREAM *stream, OPENAL_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, (OPENAL_SAMPLE *) stream, dsp, startpaused);
}
-AL_API signed char OPENAL_Stream_Stop(OPENAL_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 == (OPENAL_SAMPLE *) stream)
+ if (impl_channels[i].sample == (OPENAL_SAMPLE *) stream)
{
- alSourceStop(channels[i].sid);
- channels[i].startpaused = false;
+ alSourceStop(impl_channels[i].sid);
+ impl_channels[i].startpaused = false;
}
}
return true;
return true;
}
+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);
+ }
+}
+
#endif
projects / lugaru.git / blobdiff