1 files changed, 389 insertions, 0 deletions
diff --git a/src/win32/win_snd.c b/src/win32/win_snd.c
new file mode 100644
index 0000000..184c032
--- /dev/null
+++ b/src/win32/win_snd.c
@@ -0,0 +1,389 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous 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.
+
+Tremulous 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 Tremulous; 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) \
+        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, (LPVOID)&pbuf, &locksize, 
+								   (LPVOID)&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 ();
+	}
+}
+
+