diff options
Diffstat (limited to 'portaudio/src/os/win/pa_win_waveformat.c')
| -rw-r--r-- | portaudio/src/os/win/pa_win_waveformat.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/portaudio/src/os/win/pa_win_waveformat.c b/portaudio/src/os/win/pa_win_waveformat.c deleted file mode 100644 index 0436a39..0000000 --- a/portaudio/src/os/win/pa_win_waveformat.c +++ /dev/null @@ -1,163 +0,0 @@ -/* - * PortAudio Portable Real-Time Audio Library - * Windows WAVEFORMAT* data structure utilities - * portaudio.h should be included before this file. - * - * Copyright (c) 2007 Ross Bencina - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files - * (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, - * publish, distribute, sublicense, and/or sell copies of the Software, - * and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF - * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * The text above constitutes the entire PortAudio license; however, - * the PortAudio community also makes the following non-binding requests: - * - * Any person wishing to distribute modifications to the Software is - * requested to send the modifications to the original developer so that - * they can be incorporated into the canonical version. It is also - * requested that these non-binding requests be included along with the - * license above. - */ - -#include <windows.h> -#include <mmsystem.h> -#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP) - #include <mmreg.h> /* for WAVEFORMATEX */ -#endif - -#include "portaudio.h" -#include "pa_win_waveformat.h" - - -#if !defined(WAVE_FORMAT_EXTENSIBLE) -#define WAVE_FORMAT_EXTENSIBLE 0xFFFE -#endif - - -static GUID pawin_ksDataFormatSubtypeGuidBase = - { (USHORT)(WAVE_FORMAT_PCM), 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }; - - -int PaWin_SampleFormatToLinearWaveFormatTag( PaSampleFormat sampleFormat ) -{ - if( sampleFormat == paFloat32 ) - return PAWIN_WAVE_FORMAT_IEEE_FLOAT; - - return PAWIN_WAVE_FORMAT_PCM; -} - - -void PaWin_InitializeWaveFormatEx( PaWinWaveFormat *waveFormat, - int numChannels, PaSampleFormat sampleFormat, int waveFormatTag, double sampleRate ) -{ - WAVEFORMATEX *waveFormatEx = (WAVEFORMATEX*)waveFormat; - int bytesPerSample = Pa_GetSampleSize(sampleFormat); - unsigned long bytesPerFrame = numChannels * bytesPerSample; - - waveFormatEx->wFormatTag = waveFormatTag; - waveFormatEx->nChannels = (WORD)numChannels; - waveFormatEx->nSamplesPerSec = (DWORD)sampleRate; - waveFormatEx->nAvgBytesPerSec = waveFormatEx->nSamplesPerSec * bytesPerFrame; - waveFormatEx->nBlockAlign = (WORD)bytesPerFrame; - waveFormatEx->wBitsPerSample = bytesPerSample * 8; - waveFormatEx->cbSize = 0; -} - - -void PaWin_InitializeWaveFormatExtensible( PaWinWaveFormat *waveFormat, - int numChannels, PaSampleFormat sampleFormat, int waveFormatTag, double sampleRate, - PaWinWaveFormatChannelMask channelMask ) -{ - WAVEFORMATEX *waveFormatEx = (WAVEFORMATEX*)waveFormat; - int bytesPerSample = Pa_GetSampleSize(sampleFormat); - unsigned long bytesPerFrame = numChannels * bytesPerSample; - GUID guid; - - waveFormatEx->wFormatTag = WAVE_FORMAT_EXTENSIBLE; - waveFormatEx->nChannels = (WORD)numChannels; - waveFormatEx->nSamplesPerSec = (DWORD)sampleRate; - waveFormatEx->nAvgBytesPerSec = waveFormatEx->nSamplesPerSec * bytesPerFrame; - waveFormatEx->nBlockAlign = (WORD)bytesPerFrame; - waveFormatEx->wBitsPerSample = bytesPerSample * 8; - waveFormatEx->cbSize = 22; - - memcpy(&waveFormat->fields[PAWIN_INDEXOF_WVALIDBITSPERSAMPLE], - &waveFormatEx->wBitsPerSample, sizeof(WORD)); - - memcpy(&waveFormat->fields[PAWIN_INDEXOF_DWCHANNELMASK], - &channelMask, sizeof(DWORD)); - - guid = pawin_ksDataFormatSubtypeGuidBase; - guid.Data1 = (USHORT)waveFormatTag; - memcpy(&waveFormat->fields[PAWIN_INDEXOF_SUBFORMAT], &guid, sizeof(GUID)); -} - -PaWinWaveFormatChannelMask PaWin_DefaultChannelMask( int numChannels ) -{ - switch( numChannels ){ - case 1: - return PAWIN_SPEAKER_MONO; - case 2: - return PAWIN_SPEAKER_STEREO; - case 3: - return PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_FRONT_RIGHT; - case 4: - return PAWIN_SPEAKER_QUAD; - case 5: - return PAWIN_SPEAKER_QUAD | PAWIN_SPEAKER_FRONT_CENTER; - case 6: - /* The meaning of the PAWIN_SPEAKER_5POINT1 flag has changed over time: - http://msdn2.microsoft.com/en-us/library/aa474707.aspx - We use PAWIN_SPEAKER_5POINT1 (not PAWIN_SPEAKER_5POINT1_SURROUND) - because on some cards (eg Audigy) PAWIN_SPEAKER_5POINT1_SURROUND - results in a virtual mixdown placing the rear output in the - front _and_ rear speakers. - */ - return PAWIN_SPEAKER_5POINT1; - /* case 7: */ - case 8: - /* RoBi: PAWIN_SPEAKER_7POINT1_SURROUND fits normal surround sound setups better than PAWIN_SPEAKER_7POINT1, f.i. NVidia HDMI Audio - output is silent on channels 5&6 with NVidia drivers, and channel 7&8 with Microsoft HD Audio driver using PAWIN_SPEAKER_7POINT1. - With PAWIN_SPEAKER_7POINT1_SURROUND both setups work OK. */ - return PAWIN_SPEAKER_7POINT1_SURROUND; - } - - /* Apparently some Audigy drivers will output silence - if the direct-out constant (0) is used. So this is not ideal. - - RoBi 2012-12-19: Also, NVidia driver seem to output garbage instead. Again not very ideal. - */ - return PAWIN_SPEAKER_DIRECTOUT; - - /* Note that Alec Rogers proposed the following as an alternate method to - generate the default channel mask, however it doesn't seem to be an improvement - over the above, since some drivers will matrix outputs mapping to non-present - speakers across multiple physical speakers. - - if(nChannels==1) { - pwfFormat->dwChannelMask = SPEAKER_FRONT_CENTER; - } - else { - pwfFormat->dwChannelMask = 0; - for(i=0; i<nChannels; i++) - pwfFormat->dwChannelMask = (pwfFormat->dwChannelMask << 1) | 0x1; - } - */ -} |