mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-11 21:31:30 +00:00
6db6f8f0e2
Man, those bits rot quickly. Must be stored with a rotfish.
539 lines
12 KiB
C
539 lines
12 KiB
C
/*
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snd_dx.c
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(description)
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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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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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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#define CINTERFACE
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#include "QF/cvar.h"
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#include "QF/qargs.h"
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#include "QF/sys.h"
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#include "snd_internal.h"
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#include "context_win.h"
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#define iDirectSoundCreate(a,b,c) pDirectSoundCreate(a,b,c)
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HRESULT (WINAPI * pDirectSoundCreate) (GUID FAR * lpGUID,
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LPDIRECTSOUND FAR * lplpDS,
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IUnknown FAR * pUnkOuter);
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// 64K is > 1 second at 16-bit, 22050 Hz
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#define WAV_BUFFERS 64
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#define WAV_MASK 0x3F
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#define WAV_BUFFER_SIZE 0x0400
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#define SECONDARY_BUFFER_SIZE 0x10000
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typedef enum { SIS_SUCCESS, SIS_FAILURE, SIS_NOTAVAIL } sndinitstat;
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static qboolean dsound_init;
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static qboolean snd_firsttime = true;
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static qboolean primary_format_set;
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static int sample16;
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/*
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Global variables. Must be visible to window-procedure function
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so it can unlock and free the data block after it has been played.
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*/
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static HANDLE hData;
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static HPSTR lpData;//, lpData2;
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static HGLOBAL hWaveHdr;
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static LPWAVEHDR lpWaveHdr;
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static HWAVEOUT hWaveOut;
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//static WAVEOUTCAPS wavecaps;
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static DWORD gSndBufSize;
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static MMTIME mmstarttime;
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static LPDIRECTSOUND pDS;
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static LPDIRECTSOUNDBUFFER pDSBuf, pDSPBuf;
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static HINSTANCE hInstDS;
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static sndinitstat SNDDMA_InitDirect (snd_t *snd);
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static cvar_t *snd_stereo;
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static cvar_t *snd_rate;
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static cvar_t *snd_bits;
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static DWORD *DSOUND_LockBuffer (snd_t *snd, qboolean lockit);
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static void
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SNDDMA_Init_Cvars (void)
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{
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snd_stereo = Cvar_Get ("snd_stereo", "1", CVAR_ROM, NULL,
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"sound stereo output");
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snd_rate = Cvar_Get ("snd_rate", "11025", CVAR_ROM, NULL,
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"sound playback rate. 0 is system default");
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snd_bits = Cvar_Get ("snd_bits", "16", CVAR_ROM, NULL,
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"sound sample depth. 0 is system default");
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}
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static void
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SNDDMA_BlockSound (snd_t *snd)
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{
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}
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static void
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SNDDMA_UnblockSound (snd_t *snd)
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{
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}
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static void
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FreeSound (void)
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{
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if (pDSBuf) {
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IDirectSoundBuffer_Stop (pDSBuf);
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IDirectSound_Release (pDSBuf);
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}
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// release primary buffer only if it's not also the mixing buffer we just released
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if (pDSPBuf && (pDSBuf != pDSPBuf)) {
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IDirectSound_Release (pDSPBuf);
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}
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if (pDS) {
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IDirectSound_SetCooperativeLevel (pDS, win_mainwindow, DSSCL_NORMAL);
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IDirectSound_Release (pDS);
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}
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pDS = NULL;
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pDSBuf = NULL;
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pDSPBuf = NULL;
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hWaveOut = 0;
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hData = 0;
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hWaveHdr = 0;
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lpData = NULL;
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lpWaveHdr = NULL;
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}
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/*
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SNDDMA_InitDirect
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Direct-Sound support
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*/
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static sndinitstat
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SNDDMA_InitDirect (snd_t *snd)
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{
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int reps;
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DSBUFFERDESC dsbuf;
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DSBCAPS dsbcaps;
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DSCAPS dscaps;
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DWORD dwSize, dwWrite;
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HRESULT hresult;
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WAVEFORMATEX format, pformat;
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if (!snd_stereo->int_val) {
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snd->channels = 1;
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} else {
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snd->channels = 2;
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}
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snd->samplebits = snd_bits->int_val;
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snd->speed = snd_rate->int_val;
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memset (&format, 0, sizeof (format));
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format.wFormatTag = WAVE_FORMAT_PCM;
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format.nChannels = snd->channels;
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format.wBitsPerSample = snd->samplebits;
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format.nSamplesPerSec = snd->speed;
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format.nBlockAlign = format.nChannels * format.wBitsPerSample / 8;
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format.cbSize = 0;
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format.nAvgBytesPerSec = format.nSamplesPerSec * format.nBlockAlign;
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if (!hInstDS) {
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hInstDS = LoadLibrary ("dsound.dll");
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if (hInstDS == NULL) {
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Sys_Printf ("Couldn't load dsound.dll\n");
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return SIS_FAILURE;
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}
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pDirectSoundCreate =
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(void *) GetProcAddress (hInstDS, "DirectSoundCreate");
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if (!pDirectSoundCreate) {
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Sys_Printf ("Couldn't get DS proc addr\n");
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return SIS_FAILURE;
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}
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}
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while ((hresult = iDirectSoundCreate (NULL, &pDS, NULL)) != DS_OK) {
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if (hresult != DSERR_ALLOCATED) {
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Sys_Printf ("DirectSound create failed\n");
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return SIS_FAILURE;
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}
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Sys_Printf ("DirectSoundCreate failure\n"
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" hardware already in use\n");
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return SIS_NOTAVAIL;
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}
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dscaps.dwSize = sizeof (dscaps);
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if (DS_OK != IDirectSound_GetCaps (pDS, &dscaps)) {
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Sys_Printf ("Couldn't get DS caps\n");
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}
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if (dscaps.dwFlags & DSCAPS_EMULDRIVER) {
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Sys_Printf ("No DirectSound driver installed\n");
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FreeSound ();
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return SIS_FAILURE;
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}
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if (DS_OK !=
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IDirectSound_SetCooperativeLevel (pDS, win_mainwindow,
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DSSCL_EXCLUSIVE)) {
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Sys_Printf ("Set coop level failed\n");
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FreeSound ();
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return SIS_FAILURE;
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}
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// get access to the primary buffer, if possible, so we can set the
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// sound hardware format
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memset (&dsbuf, 0, sizeof (dsbuf));
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dsbuf.dwSize = sizeof (DSBUFFERDESC);
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dsbuf.dwFlags = DSBCAPS_PRIMARYBUFFER;
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dsbuf.dwBufferBytes = 0;
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dsbuf.lpwfxFormat = NULL;
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memset (&dsbcaps, 0, sizeof (dsbcaps));
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dsbcaps.dwSize = sizeof (dsbcaps);
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primary_format_set = false;
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if (!COM_CheckParm ("-snoforceformat")) {
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if (DS_OK ==
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IDirectSound_CreateSoundBuffer (pDS, &dsbuf, &pDSPBuf, NULL)) {
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pformat = format;
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if (DS_OK != IDirectSoundBuffer_SetFormat (pDSPBuf, &pformat)) {
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} else
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primary_format_set = true;
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}
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}
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if (!primary_format_set || !COM_CheckParm ("-primarysound")) {
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// create the secondary buffer we'll actually work with
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memset (&dsbuf, 0, sizeof (dsbuf));
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dsbuf.dwSize = sizeof (DSBUFFERDESC);
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dsbuf.dwFlags = DSBCAPS_CTRLFREQUENCY | DSBCAPS_LOCSOFTWARE;
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dsbuf.dwBufferBytes = SECONDARY_BUFFER_SIZE;
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dsbuf.lpwfxFormat = &format;
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memset (&dsbcaps, 0, sizeof (dsbcaps));
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dsbcaps.dwSize = sizeof (dsbcaps);
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if (DS_OK !=
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IDirectSound_CreateSoundBuffer (pDS, &dsbuf, &pDSBuf, NULL)) {
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Sys_Printf ("DS:CreateSoundBuffer Failed");
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FreeSound ();
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return SIS_FAILURE;
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}
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snd->channels = format.nChannels;
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snd->samplebits = format.wBitsPerSample;
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snd->speed = format.nSamplesPerSec;
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if (DS_OK != IDirectSound_GetCaps (pDSBuf, &dsbcaps)) {
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Sys_Printf ("DS:GetCaps failed\n");
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FreeSound ();
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return SIS_FAILURE;
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}
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} else {
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if (DS_OK !=
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IDirectSound_SetCooperativeLevel (pDS, win_mainwindow,
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DSSCL_WRITEPRIMARY)) {
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Sys_Printf ("Set coop level failed\n");
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FreeSound ();
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return SIS_FAILURE;
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}
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if (DS_OK != IDirectSound_GetCaps (pDSPBuf, &dsbcaps)) {
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Sys_Printf ("DS:GetCaps failed\n");
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return SIS_FAILURE;
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}
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pDSBuf = pDSPBuf;
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}
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// Make sure mixer is active
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IDirectSoundBuffer_Play (pDSBuf, 0, 0, DSBPLAY_LOOPING);
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gSndBufSize = dsbcaps.dwBufferBytes;
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// initialize the buffer
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reps = 0;
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while ((hresult = IDirectSoundBuffer_Lock (pDSBuf, 0, gSndBufSize,
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(LPVOID *)(char *)&lpData, &dwSize, NULL, NULL, 0)) != DS_OK) {
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if (hresult != DSERR_BUFFERLOST) {
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Sys_Printf ("SNDDMA_InitDirect: DS::Lock Sound Buffer Failed\n");
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FreeSound ();
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return SIS_FAILURE;
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}
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if (++reps > 10000) {
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Sys_Printf ("SNDDMA_InitDirect: DS: couldn't restore buffer\n");
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FreeSound ();
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return SIS_FAILURE;
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}
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}
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memset (lpData, 0, dwSize);
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// lpData[4] = lpData[5] = 0x7f; // force a pop for debugging
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IDirectSoundBuffer_Unlock (pDSBuf, lpData, dwSize, NULL, 0);
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/* we don't want anyone to access the buffer directly w/o locking it
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first. */
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// lpData = NULL;
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IDirectSoundBuffer_Stop (pDSBuf);
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IDirectSoundBuffer_GetCurrentPosition (pDSBuf, &mmstarttime.u.sample,
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&dwWrite);
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IDirectSoundBuffer_Play (pDSBuf, 0, 0, DSBPLAY_LOOPING);
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snd->frames = gSndBufSize / (snd->samplebits / 8) / snd->channels;
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snd->framepos = 0;
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snd->submission_chunk = 1;
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snd->buffer = (byte *) lpData;
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sample16 = (snd->samplebits / 8) - 1;
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dsound_init = true;
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return SIS_SUCCESS;
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}
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/*
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SNDDMA_Init
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Try to find a sound device to mix for.
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Returns false if nothing is found.
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*/
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static int
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SNDDMA_Init (snd_t *snd)
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{
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sndinitstat stat;
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int ret = 0;
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stat = SIS_FAILURE; // assume DirectSound won't
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// initialize
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/* Init DirectSound */
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if (snd_firsttime) {
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snd_firsttime = false;
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stat = SNDDMA_InitDirect (snd);
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if ((ret = (stat == SIS_SUCCESS))) {
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Sys_Printf ("DirectSound initialized\n");
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} else {
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Sys_Printf ("DirectSound failed to init\n");
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}
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}
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return ret;
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}
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/*
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SNDDMA_GetDMAPos
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return the current sample position (in mono samples read)
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inside the recirculating dma buffer, so the mixing code will know
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how many sample are required to fill it up.
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*/
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static int
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SNDDMA_GetDMAPos (snd_t *snd)
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{
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int s = 0;
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DWORD dwWrite;
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MMTIME mmtime;
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unsigned long *pbuf;
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pbuf = DSOUND_LockBuffer (snd, true);
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if (!pbuf) {
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Sys_Printf ("DSOUND_LockBuffer fails!\n");
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return -1;
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}
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snd->buffer = (unsigned char *) pbuf;
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mmtime.wType = TIME_SAMPLES;
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IDirectSoundBuffer_GetCurrentPosition (pDSBuf, &mmtime.u.sample,
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&dwWrite);
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s = mmtime.u.sample - mmstarttime.u.sample;
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s >>= sample16;
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s /= snd->channels;
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s %= snd->frames;
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snd->framepos = s;
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return snd->framepos;
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}
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/*
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SNDDMA_Submit
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Send sound to device if buffer isn't really the dma buffer
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*/
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static void
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SNDDMA_Submit (snd_t *snd)
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{
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DSOUND_LockBuffer (snd, false);
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}
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static void
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SNDDMA_shutdown (snd_t *snd)
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{
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FreeSound ();
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}
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static DWORD *
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DSOUND_LockBuffer (snd_t *snd, qboolean lockit)
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{
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int reps;
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static DWORD dwSize;
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static DWORD dwSize2;
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static DWORD *pbuf1;
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static DWORD *pbuf2;
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HRESULT hresult;
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if (!pDSBuf)
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return NULL;
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if (lockit) {
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reps = 0;
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while ((hresult = IDirectSoundBuffer_Lock
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(pDSBuf, 0, gSndBufSize, (LPVOID *)(char *) &pbuf1, &dwSize,
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(LPVOID *)(char *) &pbuf2, &dwSize2, 0)) != DS_OK) {
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if (hresult != DSERR_BUFFERLOST) {
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Sys_Printf
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("S_TransferStereo16: DS::Lock Sound Buffer Failed\n");
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SNDDMA_shutdown (snd);
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SNDDMA_Init (snd);
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return NULL;
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}
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if (++reps > 10000) {
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Sys_Printf
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("S_TransferStereo16: DS: couldn't restore buffer\n");
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SNDDMA_shutdown (snd);
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SNDDMA_Init (snd);
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return NULL;
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}
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}
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} else {
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IDirectSoundBuffer_Unlock (pDSBuf, pbuf1, dwSize, NULL, 0);
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pbuf1 = NULL;
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pbuf2 = NULL;
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dwSize = 0;
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dwSize2 = 0;
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}
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return (pbuf1);
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}
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static void __attribute__((used)) //FIXME make it true
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DSOUND_ClearBuffer (snd_t *snd, int clear)
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{
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DWORD *pData;
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// FIXME: this should be called with 2nd pbuf2 = NULL, dwsize =0
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pData = DSOUND_LockBuffer (snd, true);
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memset (pData, clear, snd->frames * snd->channels * snd->samplebits / 8);
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DSOUND_LockBuffer (snd, false);
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}
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static void __attribute__((used)) //FIXME make it true
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DSOUND_Restore (void)
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{
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// if the buffer was lost or stopped, restore it and/or restart it
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DWORD dwStatus;
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if (!pDSBuf)
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return;
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if (IDirectSoundBuffer_GetStatus (pDSBuf, &dwStatus) != DS_OK)
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Sys_Printf ("Couldn't get sound buffer status\n");
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if (dwStatus & DSBSTATUS_BUFFERLOST)
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IDirectSoundBuffer_Restore (pDSBuf);
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if (!(dwStatus & DSBSTATUS_PLAYING))
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IDirectSoundBuffer_Play (pDSBuf, 0, 0, DSBPLAY_LOOPING);
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return;
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}
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static snd_output_data_t plugin_info_snd_output_data = {
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};
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static snd_output_funcs_t plugin_info_snd_output_funcs = {
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.init = SNDDMA_Init,
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.shutdown = SNDDMA_shutdown,
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.get_dma_pos = SNDDMA_GetDMAPos,
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.submit = SNDDMA_Submit,
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.block_sound = SNDDMA_BlockSound,
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.unblock_sound = SNDDMA_UnblockSound,
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};
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static general_data_t plugin_info_general_data = {
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};
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static general_funcs_t plugin_info_general_funcs = {
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.init = SNDDMA_Init_Cvars,
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};
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static plugin_data_t plugin_info_data = {
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.general = &plugin_info_general_data,
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.snd_output = &plugin_info_snd_output_data,
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};
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static plugin_funcs_t plugin_info_funcs = {
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.general = &plugin_info_general_funcs,
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.snd_output = &plugin_info_snd_output_funcs,
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};
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static plugin_t plugin_info = {
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.type = qfp_snd_output,
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.api_version = QFPLUGIN_VERSION,
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.plugin_version = "0.1",
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.description = "Windows DirectX output",
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.copyright = "Copyright (C) 1996-1997 id Software, Inc.\n"
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"Copyright (C) 1999,2000,2001,2002,2003 contributors of the "
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"QuakeForge project\n"
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"Please see the file \"AUTHORS\" for a list of contributors",
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.functions = &plugin_info_funcs,
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.data = &plugin_info_data,
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};
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PLUGIN_INFO(snd_output, dx)
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{
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return &plugin_info;
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}
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