mirror of https://github.com/nzp-team/glquake.git
97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/*
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Copyright (C) 2017 Felipe Izzo
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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.
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See the GNU General Public License for more details.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <3ds.h>
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#include "quakedef.h"
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#define SAMPLE_RATE 22050
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#define NUM_SAMPLES 2048
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#define SAMPLE_SIZE 4
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#define BUFFER_SIZE NUM_SAMPLES*SAMPLE_SIZE
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static int sound_initialized = 0;
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static byte *audio_buffer;
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static ndspWaveBuf wave_buf;
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qboolean SNDDMA_Init(void)
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{
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sound_initialized = 0;
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if(ndspInit() != 0) {
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return false;
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}
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audio_buffer = linearAlloc(BUFFER_SIZE);
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ndspSetOutputMode(NDSP_OUTPUT_STEREO);
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ndspChnReset(0);
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ndspChnWaveBufClear(0);
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ndspChnSetInterp(0, NDSP_INTERP_LINEAR);
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ndspChnSetRate(0, (float)SAMPLE_RATE);
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ndspChnSetFormat(0, NDSP_FORMAT_STEREO_PCM16);
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memset(&wave_buf, 0, sizeof(wave_buf));
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wave_buf.data_vaddr = audio_buffer;
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wave_buf.nsamples = BUFFER_SIZE / 4;
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wave_buf.looping = 1;
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shm = &sn;
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shm->splitbuffer = 0;
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shm->samplebits = 16;
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shm->speed = SAMPLE_RATE;
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shm->channels = 2;
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shm->samples = BUFFER_SIZE / 2;
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shm->samplepos = 0;
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shm->submission_chunk = 1;
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shm->buffer = audio_buffer;
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ndspChnWaveBufAdd(0, &wave_buf);
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sound_initialized = 1;
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return true;
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}
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int SNDDMA_GetDMAPos(void)
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{
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if(!sound_initialized)
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return 0;
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shm->samplepos = ndspChnGetSamplePos(0) / (shm->samplebits / 8);
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return shm->samplepos;
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}
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void SNDDMA_Shutdown(void)
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{
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if(!sound_initialized)
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return;
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ndspChnWaveBufClear(0);
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ndspExit();
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linearFree(audio_buffer);
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sound_initialized = 0;
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}
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void SNDDMA_Submit(void)
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{
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} |