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https://github.com/scp-fs2open/fs2open.github.com.git
synced 2026-11-07 22:56:30 -10:00
Goober5000
f4669db41c
Apply `const` to a whole bunch of functions. Also change a bunch of ints to bools.
124 lines
3.0 KiB
C++
124 lines
3.0 KiB
C++
/*
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* Copyright (C) Volition, Inc. 1999. All rights reserved.
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*
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* All source code herein is the property of Volition, Inc. You may not sell
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* or otherwise commercially exploit the source or things you created based on the
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* source.
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*
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*/
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#include "cmdline/cmdline.h"
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#include "globalincs/pstypes.h"
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#include "object/object.h"
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#include "sound/channel.h"
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#include "sound/ds.h"
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#include "sound/ds3d.h"
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#include "sound/openal.h"
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#include "sound/sound.h"
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// ---------------------------------------------------------------------------------------
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// ds3d_update_buffer()
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//
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// parameters: channel => identifies the 3D sound to update
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// min => the distance at which sound doesn't get any louder
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// max => the distance at which sound doesn't attenuate any further
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// pos => world position of sound
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// vel => velocity of the objects producing the sound
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//
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// returns: 0 => success
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// -1 => failure
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//
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//
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int ds3d_update_buffer(int channel_id, float min, float max, const vec3d *pos, const vec3d *vel)
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{
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if (Cmdline_no_3d_sound) {
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nprintf(("Sound", "Aborting ds3d_update_buffer due to Cmdline_no_3d_sound...\n"));
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return -1;
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}
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if (channel_id < 0) {
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return 0;
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}
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ALuint source_id = Channels[channel_id].source_id;
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ALfloat rolloff = 1.0f;
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if (pos) {
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OpenAL_ErrorPrint( alSource3f(source_id, AL_POSITION, pos->xyz.x, pos->xyz.y, -pos->xyz.z) );
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}
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if (vel) {
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OpenAL_ErrorPrint( alSource3f(source_id, AL_VELOCITY, vel->xyz.x, vel->xyz.y, vel->xyz.z) );
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//OpenAL_ErrorPrint( alDopplerFactor(1.0f) );
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} else {
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OpenAL_ErrorPrint( alSource3f(source_id, AL_VELOCITY, 0.0f, 0.0f, 0.0f) );
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OpenAL_ErrorPrint( alDopplerFactor(0.0f) );
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}
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if (max <= min) {
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rolloff = 0.0f;
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} else {
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#define MIN_GAIN 0.05f
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rolloff = (min / (min + (max - min))) / MIN_GAIN;
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if (rolloff < 0.0f) {
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rolloff = 0.0f;
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}
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}
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OpenAL_ErrorPrint( alSourcef(source_id, AL_ROLLOFF_FACTOR, rolloff) );
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OpenAL_ErrorPrint( alSourcef(source_id, AL_REFERENCE_DISTANCE, min) );
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OpenAL_ErrorPrint( alSourcef(source_id, AL_MAX_DISTANCE, max) );
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return 0;
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}
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// ---------------------------------------------------------------------------------------
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// ds3d_update_listener()
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//
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// returns: 0 => success
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// -1 => failure
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//
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int ds3d_update_listener(const vec3d *pos, const vec3d *vel, const matrix *orient)
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{
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if (!ds_initialized) {
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return -1;
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}
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if (Cmdline_no_3d_sound) {
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nprintf(("Sound", "Aborting ds3d_update_listener due to Cmdline_no_3d_sound...\n"));
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return -1;
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}
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if (pos) {
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OpenAL_ErrorPrint( alListener3f(AL_POSITION, pos->xyz.x, pos->xyz.y, -pos->xyz.z) );
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}
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if (vel) {
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OpenAL_ErrorPrint( alListener3f(AL_VELOCITY, vel->xyz.x, vel->xyz.y, vel->xyz.z) );
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}
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if (orient) {
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ALfloat alOrient[6];
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alOrient[0] = orient->vec.fvec.xyz.x;
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alOrient[1] = orient->vec.fvec.xyz.y;
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alOrient[2] = -orient->vec.fvec.xyz.z;
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alOrient[3] = orient->vec.uvec.xyz.x;
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alOrient[4] = orient->vec.uvec.xyz.y;
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alOrient[5] = -orient->vec.uvec.xyz.z;
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OpenAL_ErrorPrint( alListenerfv(AL_ORIENTATION, alOrient) );
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}
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return 0;
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}
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