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 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.
-This program is distributed in the hope that it will be useful,
+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.
+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 this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+along with Lugaru. If not, see <http://www.gnu.org/licenses/>.
*/
-#if USE_OPENAL
-
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include "Quaternions.h"
#include "openal_wrapper.h"
#include "Sounds.h"
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;
OPENAL_SAMPLE *sample;
bool startpaused;
float position[3];
} OPENAL_Channels;
-typedef struct OPENAL_SAMPLE
-{
+typedef struct OPENAL_SAMPLE {
char *name;
ALuint bid; // buffer id.
int mode;
const ALuint sid = chan->sid;
const bool no_attenuate = sptr->is2d;
- if (no_attenuate)
- {
+ if (no_attenuate) {
alSourcei(sid, AL_SOURCE_RELATIVE, AL_TRUE);
alSource3f(sid, AL_POSITION, 0.0f, 0.0f, 0.0f);
- }
- else
- {
+ } 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];
// 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++)
- {
+ 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]);
}
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)
set_channel_position(channel, pos[0], pos[1], -pos[2]);
return true;
}
+AL_API signed char OPENAL_3D_SetAttributes_(int channel, const XYZ &pos, const float *vel)
+{
+ 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)
{
- if (initialized) return false;
- if (maxsoftwarechannels == 0) return false;
+ if (initialized)
+ return false;
+ if (maxsoftwarechannels == 0)
+ return false;
if (flags != 0) // unsupported.
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;
}
ALint caps[] = { ALC_FREQUENCY, mixrate, 0 };
ALCcontext *ctx = alcCreateContext(dev, caps);
- if (!ctx)
- {
+ if (!ctx) {
alcCloseDevice(dev);
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));
AL_API void OPENAL_Close()
{
- if (!initialized) return;
+ if (!initialized)
+ return;
ALCcontext *ctx = alcGetCurrentContext();
- if (ctx)
- {
- for (int i = 0; i < num_channels; i++)
- {
+ 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);
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;
+ if (!initialized)
+ return NULL;
+ if ((channel < 0) || (channel >= num_channels))
+ return NULL;
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 (!initialized)
+ return false;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
if (impl_channels[channel].startpaused)
return(true);
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;
+ if (!initialized)
+ return 0;
+ if ((channel < 0) || (channel >= num_channels))
+ return 0;
ALint loop = 0;
alGetSourceiv(impl_channels[channel].sid, AL_LOOPING, &loop);
if (loop)
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;
+ if (!initialized)
+ return false;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
ALint state = 0;
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;
- if (dsp != NULL) return -1;
- if (channel == OPENAL_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(impl_channels[i].sid, AL_SOURCE_STATE, &state);
- if ((state != AL_PLAYING) && (state != AL_PAUSED))
- {
+ if ((state != AL_PLAYING) && (state != AL_PAUSED)) {
channel = i;
break;
}
}
}
- if ((channel < 0) || (channel >= num_channels)) return -1;
+ 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);
char *fname = (char *) alloca(strlen(_fname) + 16);
strcpy(fname, _fname);
char *ptr = strchr(fname, '.');
- if (ptr) *ptr = '\0';
+ 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), bigendian, 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;
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 != 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...
+ 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;
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 OPENAL_SAMPLE;
retval->bid = bid;
AL_API void OPENAL_Sample_Free(OPENAL_SAMPLE *sptr)
{
- if (!initialized) return;
- if (sptr)
- {
- for (int i = 0; i < num_channels; i++)
- {
- if (impl_channels[i].sample == sptr)
- {
+ 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;
}
}
-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;
- 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;
}
AL_API signed char OPENAL_SetFrequency(int channel, int freq)
{
- if (!initialized) return false;
- if (channel == OPENAL_ALL)
- {
+ if (!initialized)
+ return false;
+ if (channel == OPENAL_ALL) {
for (int i = 0; i < num_channels; i++)
OPENAL_SetFrequency(i, freq);
return true;
}
- if ((channel < 0) || (channel >= num_channels)) return false;
- if (freq == 8012) // hack
+ 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(impl_channels[channel].sid, AL_PITCH, 1.0f);
AL_API signed char OPENAL_SetVolume(int channel, int vol)
{
- if (!initialized) return false;
+ if (!initialized)
+ return false;
- if (channel == OPENAL_ALL)
- {
+ if (channel == OPENAL_ALL) {
for (int i = 0; i < num_channels; i++)
OPENAL_SetVolume(i, vol);
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(impl_channels[channel].sid, AL_GAIN, gain);
return true;
AL_API signed char OPENAL_SetPaused(int channel, signed char paused)
{
- if (!initialized) return false;
+ if (!initialized)
+ return false;
- if (channel == OPENAL_ALL)
- {
+ if (channel == OPENAL_ALL) {
for (int i = 0; i < num_channels; i++)
OPENAL_SetPaused(i, paused);
return true;
}
- if ((channel < 0) || (channel >= num_channels)) return false;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
ALint state = 0;
if (impl_channels[channel].startpaused)
if ((paused) && (state == AL_PLAYING))
alSourcePause(impl_channels[channel].sid);
- else if ((!paused) && (state == AL_PAUSED))
- {
+ else if ((!paused) && (state == AL_PAUSED)) {
alSourcePlay(impl_channels[channel].sid);
impl_channels[channel].startpaused = false;
}
AL_API void OPENAL_SetSFXMasterVolume(int volume)
{
- if (!initialized) return;
+ if (!initialized)
+ return;
ALfloat gain = ((ALfloat) volume) / 255.0f;
alListenerf(AL_GAIN, gain);
}
AL_API signed char OPENAL_StopSound(int channel)
{
- if (!initialized) return false;
+ if (!initialized)
+ return false;
- if (channel == OPENAL_ALL)
- {
+ if (channel == OPENAL_ALL) {
for (int i = 0; i < num_channels; i++)
OPENAL_StopSound(i);
return true;
}
- if ((channel < 0) || (channel >= num_channels)) return false;
+ if ((channel < 0) || (channel >= num_channels))
+ return false;
alSourceStop(impl_channels[channel].sid);
impl_channels[channel].startpaused = false;
return true;
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;
+ 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 (impl_channels[i].sample == (OPENAL_SAMPLE *) stream)
- {
+ 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;
}
AL_API void OPENAL_Update()
{
- if (!initialized) return;
+ if (!initialized)
+ return;
alcProcessContext(alcGetCurrentContext());
}
return true;
}
-extern int channels[100];
-extern OPENAL_STREAM * strm[20];
+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);
- }
+ 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
+ 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