92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
/*
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* Copyright (C) 2004 Christopher John Purnell
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* cjp@lost.org.uk
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "alc_speaker.h"
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#include "al_vector.h"
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static AL_speaker _alcDefaultSpeakers[_ALC_NUM_SPEAKERS] =
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{
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{ 127.5f, { -1.0f, 0.0f, 0.0f } }, /* Front Left */
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{ 127.5f, { 1.0f, 0.0f, 0.0f } }, /* Front Right */
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{ 0.0f, { 0.0f, 0.0f, 0.0f } }, /* Rear Left */
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{ 0.0f, { 0.0f, 0.0f, 0.0f } }, /* Rear Right */
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{ 0.0f, { 0.0f, 0.0f, 0.0f } }, /* Center */
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{ 0.0f, { 0.0f, 0.0f, 0.0f } }, /* LFE */
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{ 0.0f, { 0.0f, 0.0f, 0.0f } }, /* Side Left */
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{ 0.0f, { 0.0f, 0.0f, 0.0f } } /* Side Right */
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};
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ALvoid _alcLoadSpeakers(AL_speaker *speakers)
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{
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char *s, buf[1024];
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FILE *fp;
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ALuint i;
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ALfloat gain;
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ALfloat pos[3];
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memcpy(speakers, _alcDefaultSpeakers, sizeof(_alcDefaultSpeakers));
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if (!(s = getenv("HOME")))
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{
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return;
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}
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sprintf(buf, "%s/.openal-speakers", s);
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if (!(fp = fopen(buf, "r")))
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{
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return;
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}
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while (fgets(buf, 1024, fp))
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{
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if ((s = strchr(buf, '#')))
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{
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*s = '\0';
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}
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if (sscanf(buf, "%u: %f %f %f %f", &i, &gain,
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pos + 0, pos + 1, pos + 2) == 5)
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{
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if (i >= _ALC_NUM_SPEAKERS)
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{
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continue;
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}
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if (gain < 0.0)
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{
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gain = 0.0;
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}
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else if (gain > 1.0)
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{
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gain = 1.0;
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}
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speakers[i].gain = gain * 127.5;
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_alVectorNormalize(speakers[i].position, pos);
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}
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}
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fclose(fp);
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}
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