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#ifndef _AL_H
#define _AL_H
#if defined(__APPLE__)
#include "al.h"
#include "alc.h"
#else
#include <AL/al.h>
#include <AL/alc.h>
#endif // defined(__APPLE__)
#include <string>
const char* openal_error_string(int get_alc = 0);
bool openal_init_device(SCP_string *playback, SCP_string *capture);
ALenum openal_get_format(ALint bits, ALint n_channels);
struct OpenALInformation {
uint32_t version_major = 0;
uint32_t version_minor = 0;
SCP_string default_playback_device{};
SCP_string default_capture_device{};
SCP_vector<SCP_string> playback_devices;
SCP_vector<SCP_string> capture_devices;
SCP_vector<std::pair<SCP_string, bool>> efx_support;
};
OpenALInformation openal_get_platform_information();
int openal_find_playback_device_by_name(const SCP_string& device);
int openal_find_capture_device_by_name(const SCP_string& device);
// if an error occurs after executing 'x' then do 'y'
#define OpenAL_ErrorCheck( x, y ) do { \
x; \
const char *error_text = openal_error_string(0); \
if ( error_text != NULL ) { \
nprintf(("Warning", "SOUND: %s:%d - OpenAL error = '%s'\n", __FILE__, __LINE__, error_text)); \
y; \
} \
} while (false);
// like OpenAL_ErrorCheck() except that it gives the error message from x but does nothing about it
#define OpenAL_ErrorPrint( x ) do { \
x; \
const char *error_text = openal_error_string(0); \
if ( error_text != NULL ) { \
nprintf(("Sound", "OpenAL ERROR: \"%s\" in %s, line %i\n", error_text, __FILE__, __LINE__)); \
} \
} while (0);
// same as the above two, but looks for ALC errors instead of standard AL errors
#define OpenAL_C_ErrorCheck( x, y ) do { \
x; \
const char *error_text = openal_error_string(1); \
if ( error_text != NULL ) { \
nprintf(("Warning", "SOUND: %s:%d - OpenAL error = '%s'\n", __FILE__, __LINE__, error_text)); \
y; \
} \
} while (0);
// like OpenAL_ErrorCheck() except that it gives the error message from x but does nothing about it
#define OpenAL_C_ErrorPrint( x ) do { \
x; \
const char *error_text = openal_error_string(1); \
if ( error_text != NULL ) { \
nprintf(("Sound", "OpenAL ERROR: \"%s\" in %s, line %i\n", error_text, __FILE__, __LINE__)); \
} \
} while (0);
#ifndef AL_BYTE_LOKI
// in case it's not defined by older/other drivers
#define AL_BYTE_LOKI 0x100C
#endif
// not define by older OpenAL versions
#ifndef AL_BYTE_OFFSET
#define AL_BYTE_OFFSET 0x1026
#endif
#ifndef ALC_EXT_EFX
#define ALC_EXT_EFX 1
#define AL_FILTER_TYPE 0x8001
#define AL_EFFECT_TYPE 0x8001
#define AL_FILTER_NULL 0x0000
#define AL_FILTER_LOWPASS 0x0001
#define AL_EFFECT_NULL 0x0000
#define AL_EFFECT_EAXREVERB 0x8000
#define AL_EFFECT_REVERB 0x0001
#define AL_EFFECT_ECHO 0x0004
#define ALC_EFX_MAJOR_VERSION 0x20001
#define ALC_EFX_MINOR_VERSION 0x20002
#define ALC_MAX_AUXILIARY_SENDS 0x20003
#define AL_AUXILIARY_SEND_FILTER 0x20006
#define AL_EAXREVERB_DENSITY 0x0001
#define AL_EAXREVERB_DIFFUSION 0x0002
#define AL_EAXREVERB_GAIN 0x0003
#define AL_EAXREVERB_GAINHF 0x0004
#define AL_EAXREVERB_GAINLF 0x0005
#define AL_EAXREVERB_DECAY_TIME 0x0006
#define AL_EAXREVERB_DECAY_HFRATIO 0x0007
#define AL_EAXREVERB_DECAY_LFRATIO 0x0008
#define AL_EAXREVERB_REFLECTIONS_GAIN 0x0009
#define AL_EAXREVERB_REFLECTIONS_DELAY 0x000A
#define AL_EAXREVERB_REFLECTIONS_PAN 0x000B
#define AL_EAXREVERB_LATE_REVERB_GAIN 0x000C
#define AL_EAXREVERB_LATE_REVERB_DELAY 0x000D
#define AL_EAXREVERB_LATE_REVERB_PAN 0x000E
#define AL_EAXREVERB_ECHO_TIME 0x000F
#define AL_EAXREVERB_ECHO_DEPTH 0x0010
#define AL_EAXREVERB_MODULATION_TIME 0x0011
#define AL_EAXREVERB_MODULATION_DEPTH 0x0012
#define AL_EAXREVERB_AIR_ABSORPTION_GAINHF 0x0013
#define AL_EAXREVERB_HFREFERENCE 0x0014
#define AL_EAXREVERB_LFREFERENCE 0x0015
#define AL_EAXREVERB_ROOM_ROLLOFF_FACTOR 0x0016
#define AL_EAXREVERB_DECAY_HFLIMIT 0x0017
#define AL_EFFECTSLOT_NULL 0x0000
#define AL_EFFECTSLOT_EFFECT 0x0001
#endif
#ifndef AL_EXT_float32
#define AL_EXT_float32 1
#define AL_FORMAT_MONO_FLOAT32 0x10010
#define AL_FORMAT_STEREO_FLOAT32 0x10011
#endif
#endif // _AL_H
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