noiseplug/win/main.cpp

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2012-07-31 21:43:34 +02:00
#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
#include <Windows.h>
#include <MMSystem.h>
void fill(char *data)
{
for (int i = 0; i < 4096; i++)
{
data[i] = (i & (i & 512 ? 7 : 3)) << 3;
}
}
static const WAVEFORMATEX fmt = {
WAVE_FORMAT_PCM, 1, 8000, 8000, 1, 8, 0
};
int main(int argc, char *argv[])
{
HWAVEOUT out;
HRESULT rc = waveOutOpen(&out, WAVE_MAPPER, &fmt, NULL, NULL, CALLBACK_NULL);
if (rc != MMSYSERR_NOERROR)
{
printf("error %d on open\n");
exit(1);
}
WAVEHDR bufs[2] = {
{ (char *)malloc(4096), 4096 },
{ (char *)malloc(4096), 4096 },
};
int i = 0;
fill(bufs[i].lpData);
bufs[i].dwFlags = WHDR_PREPARED;
waveOutPrepareHeader(out, bufs + i, sizeof(WAVEHDR));
waveOutWrite(out, bufs + i, sizeof(WAVEHDR));
i ^= 1;
while (!(GetAsyncKeyState(VK_ESCAPE) & 1))
{
fill(bufs[i].lpData);
bufs[i].dwFlags = WHDR_PREPARED;
waveOutPrepareHeader(out, bufs + i, sizeof(WAVEHDR));
waveOutWrite(out, bufs + i, sizeof(WAVEHDR));
i ^= 1;
while (waveOutUnprepareHeader(out, bufs + i, sizeof(WAVEHDR)) == WAVERR_STILLPLAYING);
}
}