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147 lines
3.5 KiB
C
147 lines
3.5 KiB
C
/* MikMod sound library
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(c) 1998, 1999, 2000 Miodrag Vallat and others - see file AUTHORS for
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complete list.
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This library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of
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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. See the
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GNU Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA.
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*/
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/*==============================================================================
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Driver for output on gp32 platform
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Originally from mikplay32 source by aj0 - http://www.cs.vu.nl/~cvwalta/
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http://www.cs.vu.nl/~cvwalta/downloads/mikplay_src.rar
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http://web.archive.org/web/20031018223157/http://www.cs.vu.nl/~cvwalta/?option=articles/gp32
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Altered from mikplay source by aj0 for Mr.Mirkos SDK replacement
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and updated to mikmod 3.2.0 --- PEA (www.gp32.co.nz), March 2005
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http://www.pea.co.nz/gp32/downloads.php
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http://web.archive.org/web/20050830081635/http://www.pea.co.nz/gp32/downloads.php
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http://dl.openhandhelds.org/cgi-bin/gp32.cgi?0,0,0,0,46,632
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==============================================================================*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef DRV_GP32
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#ifndef GP32
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#define GP32 1
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#endif
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#include <stddef.h>
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#define size_t size_t
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#include <gp32.h>
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#include "mikmod_internals.h"
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#define GP32_buffersize 2048
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#define GP32_ringsize (GP32_buffersize*2)
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static SBYTE *GP32_buffer = NULL;
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static BOOL GP32_IsThere(void) {
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return 1;
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}
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static int GP32_Init(void) {
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md_mode = DMODE_STEREO | DMODE_16BITS | DMODE_SOFT_MUSIC | DMODE_SOFT_SNDFX;
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md_mixfreq = 44100;
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gp_initSound(44100, 16, GP32_ringsize); /* 44k sound, 16bpp, 2x4k buffers */
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GP32_buffer = (SBYTE *) MikMod_malloc(GP32_buffersize); /* Half of the 8k ringbuffer */
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if (!GP32_buffer) return 1;
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gp_clearRingbuffer();
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return VC_Init();
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}
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static void GP32_Stop(void) {
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gp_clearRingbuffer();
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}
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static void GP32_Restart(void) {
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/* No restart yet */
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}
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static void GP32_Exit(void) {
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gp_clearRingbuffer();
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MikMod_free(GP32_buffer);
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GP32_buffer=NULL;
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VC_Exit();
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}
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static void GP32_Update(void) {
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unsigned long bytesread;
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#ifdef GP32_DEBUG
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/* gp_debug( 1, "Read bytes" );*/
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#endif
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bytesread = VC_WriteBytes(GP32_buffer, GP32_buffersize);
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#ifdef GP32_DEBUG
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/* gp_debug(1, "Read %d bytes", bytesread);*/
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#endif
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if (!bytesread) return; /* exit if a whole buffer hasn't been read */
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gp_addRingsegment((unsigned short*)GP32_buffer);
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}
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static void GP32_PlayStop(void) {
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gp_clearRingbuffer();
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VC_PlayStop();
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}
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MIKMODAPI MDRIVER drv_gp32={
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NULL,
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"GP32 SDK Audio v0.2",
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"GP32 SDK Audio driver v0.2",
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0,255,
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"gp32",
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NULL,
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NULL,
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GP32_IsThere,
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VC_SampleLoad,
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VC_SampleUnload,
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VC_SampleSpace,
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VC_SampleLength,
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GP32_Init,
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GP32_Exit,
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NULL,
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VC_SetNumVoices,
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VC_PlayStart,
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GP32_PlayStop,
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GP32_Update,
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NULL,
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VC_VoiceSetVolume,
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VC_VoiceGetVolume,
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VC_VoiceSetFrequency,
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VC_VoiceGetFrequency,
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VC_VoiceSetPanning,
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VC_VoiceGetPanning,
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VC_VoicePlay,
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VC_VoiceStop,
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VC_VoiceStopped,
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VC_VoiceGetPosition,
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VC_VoiceRealVolume
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};
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#else
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#include "mikmod_internals.h"
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MISSING(drv_gp32);
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#endif
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/* ex:set ts=4: */
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