aboutsummaryrefslogtreecommitdiffstats
path: root/code/win32/win_snd.c
blob: f3f7c507f9fdae4da9ea0da203087f7d899d067b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
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) \
        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 ();
	}
}