diff options
Diffstat (limited to 'code/win32/win_snd.c')
-rwxr-xr-x | code/win32/win_snd.c | 776 |
1 files changed, 388 insertions, 388 deletions
diff --git a/code/win32/win_snd.c b/code/win32/win_snd.c index 224d06d..084ed44 100755 --- a/code/win32/win_snd.c +++ b/code/win32/win_snd.c @@ -1,388 +1,388 @@ -/*
-===========================================================================
-Copyright (C) 1999-2005 Id Software, Inc.
-
-This file is part of Quake III Arena source code.
-
-Quake III Arena source code is free software; you can redistribute it
-and/or modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation; either version 2 of the License,
-or (at your option) any later version.
-
-Quake III Arena source code is distributed in the hope that it will be
-useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with Foobar; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-===========================================================================
-*/
-#include <float.h>
-
-#include "../client/snd_local.h"
-#include "win_local.h"
-
-HRESULT (WINAPI *pDirectSoundCreate)(GUID FAR *lpGUID, LPDIRECTSOUND FAR *lplpDS, IUnknown FAR *pUnkOuter);
-#define iDirectSoundCreate(a,b,c) pDirectSoundCreate(a,b,c)
-
-#define SECONDARY_BUFFER_SIZE 0x10000
-
-
-static qboolean dsound_init;
-static int sample16;
-static DWORD gSndBufSize;
-static DWORD locksize;
-static LPDIRECTSOUND pDS;
-static LPDIRECTSOUNDBUFFER pDSBuf, pDSPBuf;
-static HINSTANCE hInstDS;
-
-
-static const char *DSoundError( int error ) {
- switch ( error ) {
- case DSERR_BUFFERLOST:
- return "DSERR_BUFFERLOST";
- case DSERR_INVALIDCALL:
- return "DSERR_INVALIDCALLS";
- case DSERR_INVALIDPARAM:
- return "DSERR_INVALIDPARAM";
- case DSERR_PRIOLEVELNEEDED:
- return "DSERR_PRIOLEVELNEEDED";
- }
-
- return "unknown";
-}
-
-/*
-==================
-SNDDMA_Shutdown
-==================
-*/
-void SNDDMA_Shutdown( void ) {
- Com_DPrintf( "Shutting down sound system\n" );
-
- if ( pDS ) {
- Com_DPrintf( "Destroying DS buffers\n" );
- if ( pDS )
- {
- Com_DPrintf( "...setting NORMAL coop level\n" );
- pDS->lpVtbl->SetCooperativeLevel( pDS, g_wv.hWnd, DSSCL_PRIORITY );
- }
-
- if ( pDSBuf )
- {
- Com_DPrintf( "...stopping and releasing sound buffer\n" );
- pDSBuf->lpVtbl->Stop( pDSBuf );
- pDSBuf->lpVtbl->Release( pDSBuf );
- }
-
- // only release primary buffer if it's not also the mixing buffer we just released
- if ( pDSPBuf && ( pDSBuf != pDSPBuf ) )
- {
- Com_DPrintf( "...releasing primary buffer\n" );
- pDSPBuf->lpVtbl->Release( pDSPBuf );
- }
- pDSBuf = NULL;
- pDSPBuf = NULL;
-
- dma.buffer = NULL;
-
- Com_DPrintf( "...releasing DS object\n" );
- pDS->lpVtbl->Release( pDS );
- }
-
- if ( hInstDS ) {
- Com_DPrintf( "...freeing DSOUND.DLL\n" );
- FreeLibrary( hInstDS );
- hInstDS = NULL;
- }
-
- pDS = NULL;
- pDSBuf = NULL;
- pDSPBuf = NULL;
- dsound_init = qfalse;
- memset ((void *)&dma, 0, sizeof (dma));
- CoUninitialize( );
-}
-
-/*
-==================
-SNDDMA_Init
-
-Initialize direct sound
-Returns false if failed
-==================
-*/
-qboolean SNDDMA_Init(void) {
-
- memset ((void *)&dma, 0, sizeof (dma));
- dsound_init = 0;
-
- CoInitialize(NULL);
-
- if ( !SNDDMA_InitDS () ) {
- return qfalse;
- }
-
- dsound_init = qtrue;
-
- Com_DPrintf("Completed successfully\n" );
-
- return qtrue;
-}
-
-#undef DEFINE_GUID
-
-#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
- EXTERN_C const GUID name \
- = { l, w1, w2, { b1, b2, b3, b4, b5, b6, b7, b8 } }
-
-// DirectSound Component GUID {47D4D946-62E8-11CF-93BC-444553540000}
-DEFINE_GUID(CLSID_DirectSound, 0x47d4d946, 0x62e8, 0x11cf, 0x93, 0xbc, 0x44, 0x45, 0x53, 0x54, 0x0, 0x0);
-
-// DirectSound 8.0 Component GUID {3901CC3F-84B5-4FA4-BA35-AA8172B8A09B}
-DEFINE_GUID(CLSID_DirectSound8, 0x3901cc3f, 0x84b5, 0x4fa4, 0xba, 0x35, 0xaa, 0x81, 0x72, 0xb8, 0xa0, 0x9b);
-
-DEFINE_GUID(IID_IDirectSound8, 0xC50A7E93, 0xF395, 0x4834, 0x9E, 0xF6, 0x7F, 0xA9, 0x9D, 0xE5, 0x09, 0x66);
-DEFINE_GUID(IID_IDirectSound, 0x279AFA83, 0x4981, 0x11CE, 0xA5, 0x21, 0x00, 0x20, 0xAF, 0x0B, 0xE5, 0x60);
-
-
-int SNDDMA_InitDS ()
-{
- HRESULT hresult;
- DSBUFFERDESC dsbuf;
- DSBCAPS dsbcaps;
- WAVEFORMATEX format;
- int use8;
-
- Com_Printf( "Initializing DirectSound\n");
-
- use8 = 1;
- // Create IDirectSound using the primary sound device
- if( FAILED( hresult = CoCreateInstance(&CLSID_DirectSound8, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectSound8, (void **)&pDS))) {
- use8 = 0;
- if( FAILED( hresult = CoCreateInstance(&CLSID_DirectSound, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectSound, (void **)&pDS))) {
- Com_Printf ("failed\n");
- SNDDMA_Shutdown ();
- return qfalse;
- }
- }
-
- hresult = pDS->lpVtbl->Initialize( pDS, NULL);
-
- Com_DPrintf( "ok\n" );
-
- Com_DPrintf("...setting DSSCL_PRIORITY coop level: " );
-
- if ( DS_OK != pDS->lpVtbl->SetCooperativeLevel( pDS, g_wv.hWnd, DSSCL_PRIORITY ) ) {
- Com_Printf ("failed\n");
- SNDDMA_Shutdown ();
- return qfalse;
- }
- Com_DPrintf("ok\n" );
-
-
- // create the secondary buffer we'll actually work with
- dma.channels = 2;
- dma.samplebits = 16;
-
-// if (s_khz->integer == 44)
-// dma.speed = 44100;
-// else if (s_khz->integer == 22)
-// dma.speed = 22050;
-// else
-// dma.speed = 11025;
-
- dma.speed = 22050;
- memset (&format, 0, sizeof(format));
- format.wFormatTag = WAVE_FORMAT_PCM;
- format.nChannels = dma.channels;
- format.wBitsPerSample = dma.samplebits;
- format.nSamplesPerSec = dma.speed;
- format.nBlockAlign = format.nChannels * format.wBitsPerSample / 8;
- format.cbSize = 0;
- format.nAvgBytesPerSec = format.nSamplesPerSec*format.nBlockAlign;
-
- memset (&dsbuf, 0, sizeof(dsbuf));
- dsbuf.dwSize = sizeof(DSBUFFERDESC);
-
- // Micah: take advantage of 2D hardware.if available.
- dsbuf.dwFlags = DSBCAPS_LOCHARDWARE;
- if (use8) {
- dsbuf.dwFlags |= DSBCAPS_GETCURRENTPOSITION2;
- }
- dsbuf.dwBufferBytes = SECONDARY_BUFFER_SIZE;
- dsbuf.lpwfxFormat = &format;
-
- memset(&dsbcaps, 0, sizeof(dsbcaps));
- dsbcaps.dwSize = sizeof(dsbcaps);
-
- Com_DPrintf( "...creating secondary buffer: " );
- if (DS_OK == pDS->lpVtbl->CreateSoundBuffer(pDS, &dsbuf, &pDSBuf, NULL)) {
- Com_Printf( "locked hardware. ok\n" );
- }
- else {
- // Couldn't get hardware, fallback to software.
- dsbuf.dwFlags = DSBCAPS_LOCSOFTWARE;
- if (use8) {
- dsbuf.dwFlags |= DSBCAPS_GETCURRENTPOSITION2;
- }
- if (DS_OK != pDS->lpVtbl->CreateSoundBuffer(pDS, &dsbuf, &pDSBuf, NULL)) {
- Com_Printf( "failed\n" );
- SNDDMA_Shutdown ();
- return qfalse;
- }
- Com_DPrintf( "forced to software. ok\n" );
- }
-
- // Make sure mixer is active
- if ( DS_OK != pDSBuf->lpVtbl->Play(pDSBuf, 0, 0, DSBPLAY_LOOPING) ) {
- Com_Printf ("*** Looped sound play failed ***\n");
- SNDDMA_Shutdown ();
- return qfalse;
- }
-
- // get the returned buffer size
- if ( DS_OK != pDSBuf->lpVtbl->GetCaps (pDSBuf, &dsbcaps) ) {
- Com_Printf ("*** GetCaps failed ***\n");
- SNDDMA_Shutdown ();
- return qfalse;
- }
-
- gSndBufSize = dsbcaps.dwBufferBytes;
-
- dma.channels = format.nChannels;
- dma.samplebits = format.wBitsPerSample;
- dma.speed = format.nSamplesPerSec;
- dma.samples = gSndBufSize/(dma.samplebits/8);
- dma.submission_chunk = 1;
- dma.buffer = NULL; // must be locked first
-
- sample16 = (dma.samplebits/8) - 1;
-
- SNDDMA_BeginPainting ();
- if (dma.buffer)
- memset(dma.buffer, 0, dma.samples * dma.samplebits/8);
- SNDDMA_Submit ();
- return 1;
-}
-/*
-==============
-SNDDMA_GetDMAPos
-
-return the current sample position (in mono samples read)
-inside the recirculating dma buffer, so the mixing code will know
-how many sample are required to fill it up.
-===============
-*/
-int SNDDMA_GetDMAPos( void ) {
- MMTIME mmtime;
- int s;
- DWORD dwWrite;
-
- if ( !dsound_init ) {
- return 0;
- }
-
- mmtime.wType = TIME_SAMPLES;
- pDSBuf->lpVtbl->GetCurrentPosition(pDSBuf, &mmtime.u.sample, &dwWrite);
-
- s = mmtime.u.sample;
-
- s >>= sample16;
-
- s &= (dma.samples-1);
-
- return s;
-}
-
-/*
-==============
-SNDDMA_BeginPainting
-
-Makes sure dma.buffer is valid
-===============
-*/
-void SNDDMA_BeginPainting( void ) {
- int reps;
- DWORD dwSize2;
- DWORD *pbuf, *pbuf2;
- HRESULT hresult;
- DWORD dwStatus;
-
- if ( !pDSBuf ) {
- return;
- }
-
- // if the buffer was lost or stopped, restore it and/or restart it
- if ( pDSBuf->lpVtbl->GetStatus (pDSBuf, &dwStatus) != DS_OK ) {
- Com_Printf ("Couldn't get sound buffer status\n");
- }
-
- if (dwStatus & DSBSTATUS_BUFFERLOST)
- pDSBuf->lpVtbl->Restore (pDSBuf);
-
- if (!(dwStatus & DSBSTATUS_PLAYING))
- pDSBuf->lpVtbl->Play(pDSBuf, 0, 0, DSBPLAY_LOOPING);
-
- // lock the dsound buffer
-
- reps = 0;
- dma.buffer = NULL;
-
- while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, &pbuf, &locksize,
- &pbuf2, &dwSize2, 0)) != DS_OK)
- {
- if (hresult != DSERR_BUFFERLOST)
- {
- Com_Printf( "SNDDMA_BeginPainting: Lock failed with error '%s'\n", DSoundError( hresult ) );
- S_Shutdown ();
- return;
- }
- else
- {
- pDSBuf->lpVtbl->Restore( pDSBuf );
- }
-
- if (++reps > 2)
- return;
- }
- dma.buffer = (unsigned char *)pbuf;
-}
-
-/*
-==============
-SNDDMA_Submit
-
-Send sound to device if buffer isn't really the dma buffer
-Also unlocks the dsound buffer
-===============
-*/
-void SNDDMA_Submit( void ) {
- // unlock the dsound buffer
- if ( pDSBuf ) {
- pDSBuf->lpVtbl->Unlock(pDSBuf, dma.buffer, locksize, NULL, 0);
- }
-}
-
-
-/*
-=================
-SNDDMA_Activate
-
-When we change windows we need to do this
-=================
-*/
-void SNDDMA_Activate( void ) {
- if ( !pDS ) {
- return;
- }
-
- if ( DS_OK != pDS->lpVtbl->SetCooperativeLevel( pDS, g_wv.hWnd, DSSCL_PRIORITY ) ) {
- Com_Printf ("sound SetCooperativeLevel failed\n");
- SNDDMA_Shutdown ();
- }
-}
-
-
+/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. + +This file is part of Quake III Arena source code. + +Quake III Arena source code is free software; you can redistribute it +and/or modify it under the terms of the GNU General Public License as +published by the Free Software Foundation; either version 2 of the License, +or (at your option) any later version. + +Quake III Arena source code is distributed in the hope that it will be +useful, but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with Foobar; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +#include <float.h> + +#include "../client/snd_local.h" +#include "win_local.h" + +HRESULT (WINAPI *pDirectSoundCreate)(GUID FAR *lpGUID, LPDIRECTSOUND FAR *lplpDS, IUnknown FAR *pUnkOuter); +#define iDirectSoundCreate(a,b,c) pDirectSoundCreate(a,b,c) + +#define SECONDARY_BUFFER_SIZE 0x10000 + + +static qboolean dsound_init; +static int sample16; +static DWORD gSndBufSize; +static DWORD locksize; +static LPDIRECTSOUND pDS; +static LPDIRECTSOUNDBUFFER pDSBuf, pDSPBuf; +static HINSTANCE hInstDS; + + +static const char *DSoundError( int error ) { + switch ( error ) { + case DSERR_BUFFERLOST: + return "DSERR_BUFFERLOST"; + case DSERR_INVALIDCALL: + return "DSERR_INVALIDCALLS"; + case DSERR_INVALIDPARAM: + return "DSERR_INVALIDPARAM"; + case DSERR_PRIOLEVELNEEDED: + return "DSERR_PRIOLEVELNEEDED"; + } + + return "unknown"; +} + +/* +================== +SNDDMA_Shutdown +================== +*/ +void SNDDMA_Shutdown( void ) { + Com_DPrintf( "Shutting down sound system\n" ); + + if ( pDS ) { + Com_DPrintf( "Destroying DS buffers\n" ); + if ( pDS ) + { + Com_DPrintf( "...setting NORMAL coop level\n" ); + pDS->lpVtbl->SetCooperativeLevel( pDS, g_wv.hWnd, DSSCL_PRIORITY ); + } + + if ( pDSBuf ) + { + Com_DPrintf( "...stopping and releasing sound buffer\n" ); + pDSBuf->lpVtbl->Stop( pDSBuf ); + pDSBuf->lpVtbl->Release( pDSBuf ); + } + + // only release primary buffer if it's not also the mixing buffer we just released + if ( pDSPBuf && ( pDSBuf != pDSPBuf ) ) + { + Com_DPrintf( "...releasing primary buffer\n" ); + pDSPBuf->lpVtbl->Release( pDSPBuf ); + } + pDSBuf = NULL; + pDSPBuf = NULL; + + dma.buffer = NULL; + + Com_DPrintf( "...releasing DS object\n" ); + pDS->lpVtbl->Release( pDS ); + } + + if ( hInstDS ) { + Com_DPrintf( "...freeing DSOUND.DLL\n" ); + FreeLibrary( hInstDS ); + hInstDS = NULL; + } + + pDS = NULL; + pDSBuf = NULL; + pDSPBuf = NULL; + dsound_init = qfalse; + memset ((void *)&dma, 0, sizeof (dma)); + CoUninitialize( ); +} + +/* +================== +SNDDMA_Init + +Initialize direct sound +Returns false if failed +================== +*/ +qboolean SNDDMA_Init(void) { + + memset ((void *)&dma, 0, sizeof (dma)); + dsound_init = 0; + + CoInitialize(NULL); + + if ( !SNDDMA_InitDS () ) { + return qfalse; + } + + dsound_init = qtrue; + + Com_DPrintf("Completed successfully\n" ); + + return qtrue; +} + +#undef DEFINE_GUID + +#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \ + EXTERN_C const GUID name \ + = { l, w1, w2, { b1, b2, b3, b4, b5, b6, b7, b8 } } + +// DirectSound Component GUID {47D4D946-62E8-11CF-93BC-444553540000} +DEFINE_GUID(CLSID_DirectSound, 0x47d4d946, 0x62e8, 0x11cf, 0x93, 0xbc, 0x44, 0x45, 0x53, 0x54, 0x0, 0x0); + +// DirectSound 8.0 Component GUID {3901CC3F-84B5-4FA4-BA35-AA8172B8A09B} +DEFINE_GUID(CLSID_DirectSound8, 0x3901cc3f, 0x84b5, 0x4fa4, 0xba, 0x35, 0xaa, 0x81, 0x72, 0xb8, 0xa0, 0x9b); + +DEFINE_GUID(IID_IDirectSound8, 0xC50A7E93, 0xF395, 0x4834, 0x9E, 0xF6, 0x7F, 0xA9, 0x9D, 0xE5, 0x09, 0x66); +DEFINE_GUID(IID_IDirectSound, 0x279AFA83, 0x4981, 0x11CE, 0xA5, 0x21, 0x00, 0x20, 0xAF, 0x0B, 0xE5, 0x60); + + +int SNDDMA_InitDS () +{ + HRESULT hresult; + DSBUFFERDESC dsbuf; + DSBCAPS dsbcaps; + WAVEFORMATEX format; + int use8; + + Com_Printf( "Initializing DirectSound\n"); + + use8 = 1; + // Create IDirectSound using the primary sound device + if( FAILED( hresult = CoCreateInstance(&CLSID_DirectSound8, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectSound8, (void **)&pDS))) { + use8 = 0; + if( FAILED( hresult = CoCreateInstance(&CLSID_DirectSound, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectSound, (void **)&pDS))) { + Com_Printf ("failed\n"); + SNDDMA_Shutdown (); + return qfalse; + } + } + + hresult = pDS->lpVtbl->Initialize( pDS, NULL); + + Com_DPrintf( "ok\n" ); + + Com_DPrintf("...setting DSSCL_PRIORITY coop level: " ); + + if ( DS_OK != pDS->lpVtbl->SetCooperativeLevel( pDS, g_wv.hWnd, DSSCL_PRIORITY ) ) { + Com_Printf ("failed\n"); + SNDDMA_Shutdown (); + return qfalse; + } + Com_DPrintf("ok\n" ); + + + // create the secondary buffer we'll actually work with + dma.channels = 2; + dma.samplebits = 16; + +// if (s_khz->integer == 44) +// dma.speed = 44100; +// else if (s_khz->integer == 22) +// dma.speed = 22050; +// else +// dma.speed = 11025; + + dma.speed = 22050; + memset (&format, 0, sizeof(format)); + format.wFormatTag = WAVE_FORMAT_PCM; + format.nChannels = dma.channels; + format.wBitsPerSample = dma.samplebits; + format.nSamplesPerSec = dma.speed; + format.nBlockAlign = format.nChannels * format.wBitsPerSample / 8; + format.cbSize = 0; + format.nAvgBytesPerSec = format.nSamplesPerSec*format.nBlockAlign; + + memset (&dsbuf, 0, sizeof(dsbuf)); + dsbuf.dwSize = sizeof(DSBUFFERDESC); + + // Micah: take advantage of 2D hardware.if available. + dsbuf.dwFlags = DSBCAPS_LOCHARDWARE; + if (use8) { + dsbuf.dwFlags |= DSBCAPS_GETCURRENTPOSITION2; + } + dsbuf.dwBufferBytes = SECONDARY_BUFFER_SIZE; + dsbuf.lpwfxFormat = &format; + + memset(&dsbcaps, 0, sizeof(dsbcaps)); + dsbcaps.dwSize = sizeof(dsbcaps); + + Com_DPrintf( "...creating secondary buffer: " ); + if (DS_OK == pDS->lpVtbl->CreateSoundBuffer(pDS, &dsbuf, &pDSBuf, NULL)) { + Com_Printf( "locked hardware. ok\n" ); + } + else { + // Couldn't get hardware, fallback to software. + dsbuf.dwFlags = DSBCAPS_LOCSOFTWARE; + if (use8) { + dsbuf.dwFlags |= DSBCAPS_GETCURRENTPOSITION2; + } + if (DS_OK != pDS->lpVtbl->CreateSoundBuffer(pDS, &dsbuf, &pDSBuf, NULL)) { + Com_Printf( "failed\n" ); + SNDDMA_Shutdown (); + return qfalse; + } + Com_DPrintf( "forced to software. ok\n" ); + } + + // Make sure mixer is active + if ( DS_OK != pDSBuf->lpVtbl->Play(pDSBuf, 0, 0, DSBPLAY_LOOPING) ) { + Com_Printf ("*** Looped sound play failed ***\n"); + SNDDMA_Shutdown (); + return qfalse; + } + + // get the returned buffer size + if ( DS_OK != pDSBuf->lpVtbl->GetCaps (pDSBuf, &dsbcaps) ) { + Com_Printf ("*** GetCaps failed ***\n"); + SNDDMA_Shutdown (); + return qfalse; + } + + gSndBufSize = dsbcaps.dwBufferBytes; + + dma.channels = format.nChannels; + dma.samplebits = format.wBitsPerSample; + dma.speed = format.nSamplesPerSec; + dma.samples = gSndBufSize/(dma.samplebits/8); + dma.submission_chunk = 1; + dma.buffer = NULL; // must be locked first + + sample16 = (dma.samplebits/8) - 1; + + SNDDMA_BeginPainting (); + if (dma.buffer) + memset(dma.buffer, 0, dma.samples * dma.samplebits/8); + SNDDMA_Submit (); + return 1; +} +/* +============== +SNDDMA_GetDMAPos + +return the current sample position (in mono samples read) +inside the recirculating dma buffer, so the mixing code will know +how many sample are required to fill it up. +=============== +*/ +int SNDDMA_GetDMAPos( void ) { + MMTIME mmtime; + int s; + DWORD dwWrite; + + if ( !dsound_init ) { + return 0; + } + + mmtime.wType = TIME_SAMPLES; + pDSBuf->lpVtbl->GetCurrentPosition(pDSBuf, &mmtime.u.sample, &dwWrite); + + s = mmtime.u.sample; + + s >>= sample16; + + s &= (dma.samples-1); + + return s; +} + +/* +============== +SNDDMA_BeginPainting + +Makes sure dma.buffer is valid +=============== +*/ +void SNDDMA_BeginPainting( void ) { + int reps; + DWORD dwSize2; + DWORD *pbuf, *pbuf2; + HRESULT hresult; + DWORD dwStatus; + + if ( !pDSBuf ) { + return; + } + + // if the buffer was lost or stopped, restore it and/or restart it + if ( pDSBuf->lpVtbl->GetStatus (pDSBuf, &dwStatus) != DS_OK ) { + Com_Printf ("Couldn't get sound buffer status\n"); + } + + if (dwStatus & DSBSTATUS_BUFFERLOST) + pDSBuf->lpVtbl->Restore (pDSBuf); + + if (!(dwStatus & DSBSTATUS_PLAYING)) + pDSBuf->lpVtbl->Play(pDSBuf, 0, 0, DSBPLAY_LOOPING); + + // lock the dsound buffer + + reps = 0; + dma.buffer = NULL; + + while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, &pbuf, &locksize, + &pbuf2, &dwSize2, 0)) != DS_OK) + { + if (hresult != DSERR_BUFFERLOST) + { + Com_Printf( "SNDDMA_BeginPainting: Lock failed with error '%s'\n", DSoundError( hresult ) ); + S_Shutdown (); + return; + } + else + { + pDSBuf->lpVtbl->Restore( pDSBuf ); + } + + if (++reps > 2) + return; + } + dma.buffer = (unsigned char *)pbuf; +} + +/* +============== +SNDDMA_Submit + +Send sound to device if buffer isn't really the dma buffer +Also unlocks the dsound buffer +=============== +*/ +void SNDDMA_Submit( void ) { + // unlock the dsound buffer + if ( pDSBuf ) { + pDSBuf->lpVtbl->Unlock(pDSBuf, dma.buffer, locksize, NULL, 0); + } +} + + +/* +================= +SNDDMA_Activate + +When we change windows we need to do this +================= +*/ +void SNDDMA_Activate( void ) { + if ( !pDS ) { + return; + } + + if ( DS_OK != pDS->lpVtbl->SetCooperativeLevel( pDS, g_wv.hWnd, DSSCL_PRIORITY ) ) { + Com_Printf ("sound SetCooperativeLevel failed\n"); + SNDDMA_Shutdown (); + } +} + + |