add new sound code

2002-12-13 08:33:25 +00:00
parent 2d3f6381f5
commit 3cbb03e273
12 changed files with 944 additions and 0 deletions
@@ -0,0 +1,52 @@
+#include "../../stdafx.h"
+#include "DSoundHelpers.h"
+
+/* Stuff shared between the two DirectSound drivers. */
+static IDirectSoundBuffer8 *CreateBuf(IDirectSound8 *ds8, WAVEFORMATEX *wavefmt, Uint32 buffersize, bool Hardware)
+{
+	/* Try to create the secondary buffer */
+	DSBUFFERDESC format;
+	memset(&format, 0, sizeof(format));
+	format.dwSize = sizeof(format);
+	format.dwFlags = DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_GLOBALFOCUS;
+	if(Hardware)
+		format.dwFlags |= DSBCAPS_LOCHARDWARE;
+	format.dwBufferBytes = buffersize;
+	format.dwReserved = 0;
+	format.lpwfxFormat = wavefmt;
+
+	IDirectSoundBuffer *sndbuf_buf;
+	HRESULT hr = ds8->CreateSoundBuffer(&format, &sndbuf_buf, NULL);
+	if (FAILED(hr))
+		throw "CreateSoundBuffer failed";
+
+	IDirectSoundBuffer8 *buf;
+	sndbuf_buf->QueryInterface(IID_IDirectSoundBuffer8, (LPVOID*) &buf);
+
+	return buf;
+}
+
+IDirectSoundBuffer8 *CreateBuf(IDirectSound8 *ds8, 
+							  int channels, int samplerate, int bits,
+							  Uint32 buffersize, bool Hardware)
+{
+	WAVEFORMATEX waveformat;
+	memset(&waveformat, 0, sizeof(waveformat));
+	waveformat.cbSize = sizeof(waveformat);
+	waveformat.wFormatTag = WAVE_FORMAT_PCM;
+
+	int bytes = bits/8;
+	waveformat.wBitsPerSample = WORD(bits);
+	waveformat.nChannels = WORD(channels);
+	waveformat.nSamplesPerSec = DWORD(samplerate);
+	waveformat.nBlockAlign = WORD(bytes*channels);
+	waveformat.nAvgBytesPerSec = samplerate * bytes*channels;
+
+	return CreateBuf(ds8, &waveformat, buffersize, Hardware);
+}
+
+/*
+ * Copyright (c) 2002 by the person(s) listed below.  All rights reserved.
+ *
+ * Glenn Maynard
+ */