- typo fix, sorry
This commit is contained in:
mtabachenko
parent
59bac06efe
commit
98c0065807
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@ -1,208 +1,417 @@
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/* mic.cpp - this file is part of DeSmuME
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*
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* Copyright (C) 2009-2011 DeSmuME Team
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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Copyright (C) 2008-2009 DeSmuME team
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#ifndef WIN32
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with the this software. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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The NDS microphone produces 8-bit sound sampled at 16khz.
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The sound data must be read sample-by-sample through the
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ARM7 SPI device (touchscreen controller, channel 6).
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Note : I added these notes because the microphone isn't
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documented on GBATek.
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*/
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#include <stdlib.h>
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#include "mic.h"
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#include "NDSSystem.h"
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#include "../types.h"
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#include "../debug.h"
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#include "../mic.h"
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#include "../movie.h"
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#include "readwrite.h"
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#include <vector>
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#include <fstream>
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#define MIC_NULL_SAMPLE_VALUE 0
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#define MIC_MAX_BUFFER_SAMPLES 320
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#define MIC_BUFFER_SIZE (sizeof(u8) * MIC_MAX_BUFFER_SAMPLES)
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#define NUM_INTERNAL_NOISE_SAMPLES 32
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int MicDisplay;
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int SampleLoaded=0;
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static u8 *micSampleBuffer = NULL; // Pointer to the internal sample buffer.
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static u8 *micReadPosition = NULL; // Pointer to the read position of the internal sample buffer.
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static u8 *micWritePosition = NULL; // Pointer to the write position of the internal sample buffer.
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static unsigned int micBufferFillCount; // The number of readable samples in the internal sample buffer.
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#define MIC_CHECKERR(hr) if(hr != MMSYSERR_NOERROR) return FALSE;
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static void Mic_BufferClear(void)
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#define MIC_BUFSIZE 4096
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static BOOL Mic_Inited = FALSE;
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static u8 Mic_TempBuf[MIC_BUFSIZE];
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static u8 Mic_Buffer[2][MIC_BUFSIZE];
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static u16 Mic_BufPos;
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static u8 Mic_WriteBuf;
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static u8 Mic_PlayBuf;
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static int micReadSamplePos=0;
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static HWAVEIN waveIn;
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static WAVEHDR waveHdr;
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static int CALLBACK waveInProc(HWAVEIN wavein, UINT msg, DWORD instance, DWORD_PTR param1, DWORD_PTR param2)
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{
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if (micSampleBuffer == NULL) {
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return;
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}
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LPWAVEHDR lpWaveHdr;
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HRESULT hr;
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memset(micSampleBuffer, MIC_NULL_SAMPLE_VALUE, MIC_BUFFER_SIZE);
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micReadPosition = micSampleBuffer;
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micWritePosition = micSampleBuffer;
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micBufferFillCount = 0;
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}
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if(!Mic_Inited)
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return 1;
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BOOL Mic_Init(void)
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{
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BOOL result = FALSE;
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u8 *newBuffer = (u8 *)malloc(MIC_BUFFER_SIZE);
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if (newBuffer == NULL) {
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return result;
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}
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micSampleBuffer = newBuffer;
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Mic_BufferClear();
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result = TRUE;
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return result;
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}
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void Mic_DeInit(void)
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{
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free(micSampleBuffer);
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micSampleBuffer = NULL;
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}
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void Mic_Reset(void)
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{
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*micReadPosition = MIC_NULL_SAMPLE_VALUE;
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micWritePosition = micReadPosition;
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micBufferFillCount = 0;
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}
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static bool Mic_GetActivate(void)
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{
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return NDS_getFinalUserInput().mic.micButtonPressed;
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}
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static bool Mic_IsBufferFull(void)
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{
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return (micBufferFillCount >= MIC_MAX_BUFFER_SAMPLES);
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}
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static bool Mic_IsBufferEmpty(void)
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{
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return (micBufferFillCount == 0);
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}
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static u8 Mic_DefaultBufferRead(void)
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{
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u8 theSample = MIC_NULL_SAMPLE_VALUE;
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if (micSampleBuffer == NULL) {
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return theSample;
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}
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theSample = *micReadPosition;
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if (Mic_IsBufferEmpty()) {
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return theSample;
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}
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micReadPosition++;
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micBufferFillCount--;
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// Move the pointer back to start if we reach the end of the memory block.
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if (micReadPosition >= (micSampleBuffer + MIC_BUFFER_SIZE)) {
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micReadPosition = micSampleBuffer;
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}
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return theSample;
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}
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u8 Mic_ReadSample(void)
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{
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// All mic modes other than Physical must have the mic hotkey pressed in order
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// to work.
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if (CommonSettings.micMode != TCommonSettings::Physical && !Mic_GetActivate()) {
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return MIC_NULL_SAMPLE_VALUE;
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}
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return Mic_DefaultBufferRead();
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}
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static void Mic_DefaultBufferWrite(u8 theSample)
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{
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if (micSampleBuffer == NULL || Mic_IsBufferFull()) {
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return;
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}
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*micWritePosition = theSample;
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micWritePosition++;
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micBufferFillCount++;
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// Move the pointer back to start if we reach the end of the memory block.
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if (micWritePosition >= (micSampleBuffer + MIC_BUFFER_SIZE)) {
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micWritePosition = micSampleBuffer;
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}
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}
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static u8 Mic_GenerateInternalNoiseSample(void)
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{
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const u8 noiseSample[NUM_INTERNAL_NOISE_SAMPLES] =
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if(msg == WIM_DATA)
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{
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0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF5, 0xFF, 0xFF, 0xFF, 0xFF, 0x8E, 0xFF,
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0xF4, 0xE1, 0xBF, 0x9A, 0x71, 0x58, 0x5B, 0x5F, 0x62, 0xC2, 0x25, 0x05, 0x01, 0x01, 0x01, 0x01
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};
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static unsigned int i = 0;
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lpWaveHdr = (LPWAVEHDR)param1;
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if (++i >= NUM_INTERNAL_NOISE_SAMPLES) {
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i = 0;
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memcpy(Mic_Buffer[Mic_WriteBuf], lpWaveHdr->lpData, MIC_BUFSIZE);
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Mic_WriteBuf ^= 1;
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hr = waveInAddBuffer(waveIn, lpWaveHdr, sizeof(WAVEHDR));
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if(hr != MMSYSERR_NOERROR)
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return 1;
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}
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return noiseSample[i];
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return 0;
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}
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static u8 Mic_GenerateWhiteNoiseSample(void)
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{
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return (u8)(rand() & 0xFF);
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}
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static char* samplebuffer = NULL;
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static int samplebuffersize = 0;
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static FILE* fp = NULL;
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static u8 Mic_GenerateNullSample(void)
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{
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return MIC_NULL_SAMPLE_VALUE;
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}
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EMUFILE_MEMORY newWavData;
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void Mic_DoNoise(BOOL noise)
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static bool dataChunk(EMUFILE* inf)
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{
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u8 (*generator) (void) = NULL;
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bool found = false;
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if (micSampleBuffer == NULL) {
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return;
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// seek to just after the RIFF header
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inf->fseek(12,SEEK_SET);
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// search for a format chunk
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for (;;) {
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char chunk_id[4];
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u32 chunk_length;
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if(inf->eof()) return found;
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if(inf->fread(chunk_id, 4) != 4) return found;
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if(!read32le(&chunk_length, inf)) return found;
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// if we found a data chunk, excellent!
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if (memcmp(chunk_id, "data", 4) == 0) {
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found = true;
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u8* temp = new u8[chunk_length];
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if(inf->fread(temp,chunk_length) != chunk_length) {
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delete[] temp;
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return false;
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}
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newWavData.fwrite(temp,chunk_length);
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delete[] temp;
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chunk_length = 0;
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}
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inf->fseek(chunk_length,SEEK_CUR);
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}
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if (!noise) {
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generator = &Mic_GenerateNullSample;
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} else if (CommonSettings.micMode == TCommonSettings::InternalNoise) {
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generator = &Mic_GenerateInternalNoiseSample;
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} else if (CommonSettings.micMode == TCommonSettings::Random) {
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generator = &Mic_GenerateWhiteNoiseSample;
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}
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if (generator == NULL) {
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return;
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}
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while (micBufferFillCount < MIC_MAX_BUFFER_SAMPLES) {
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Mic_DefaultBufferWrite(generator());
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}
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return found;
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}
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void mic_savestate(EMUFILE* os)
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static bool formatChunk(EMUFILE* inf)
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{
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write32le(-1,os);
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// seek to just after the RIFF header
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inf->fseek(12,SEEK_SET);
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// search for a format chunk
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for (;;) {
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char chunk_id[4];
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u32 chunk_length;
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inf->fread(chunk_id, 4);
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if(!read32le(&chunk_length, inf)) return false;
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// if we found a format chunk, excellent!
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if (memcmp(chunk_id, "fmt ", 4) == 0 && chunk_length >= 16) {
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// read format chunk
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u16 format_tag;
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u16 channel_count;
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u32 samples_per_second;
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//u32 bytes_per_second = read32_le(chunk + 8);
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//u16 block_align = read16_le(chunk + 12);
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u16 bits_per_sample;
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if(read16le(&format_tag,inf)!=1) return false;
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if(read16le(&channel_count,inf)!=1) return false;
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if(read32le(&samples_per_second,inf)!=1) return false;
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inf->fseek(6,SEEK_CUR);
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if(read16le(&bits_per_sample,inf)!=1) return false;
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chunk_length -= 16;
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// format_tag must be 1 (WAVE_FORMAT_PCM)
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// we only support mono 8bit
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if (format_tag != 1 ||
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channel_count != 1 ||
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bits_per_sample != 8) {
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MessageBox(0,"not a valid RIFF WAVE file; must be 8bit mono pcm",0,0);
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return false;
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}
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return true;
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}
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inf->fseek(chunk_length,SEEK_CUR);
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}
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return false;
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}
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bool mic_loadstate(EMUFILE* is, int size)
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bool LoadSample(const char *name)
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{
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is->fseek(size, SEEK_CUR);
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SampleLoaded = 0;
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if(!name) return true;
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EMUFILE_FILE inf(name,"rb");
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if(inf.fail()) return false;
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//wav reading code adapted from AUDIERE (LGPL)
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// read the RIFF header
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u8 riff_id[4];
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u32 riff_length;
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u8 riff_datatype[4];
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inf.fread(riff_id, 4);
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read32le(&riff_length,&inf);
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inf.fread(riff_datatype, 4);
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if (inf.size() < 12 ||
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memcmp(riff_id, "RIFF", 4) != 0 ||
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riff_length == 0 ||
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memcmp(riff_datatype, "WAVE", 4) != 0) {
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MessageBox(0,"not a valid RIFF WAVE file",0,0);
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return false;
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}
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if (!formatChunk(&inf))
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return false;
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if(!dataChunk(&inf)) {
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MessageBox(0,"not a valid WAVE file. some unknown problem.",0,0);
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return false;
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}
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delete[] samplebuffer;
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samplebuffersize = (int)newWavData.size();
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samplebuffer = new char[samplebuffersize];
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memcpy(samplebuffer,newWavData.buf(),samplebuffersize);
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new(&newWavData) EMUFILE_MEMORY();
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SampleLoaded=1;
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return true;
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}
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BOOL Mic_DeInit_Physical()
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{
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if(!Mic_Inited)
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return TRUE;
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INFO("win32 microphone DEinit OK\n");
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Mic_Inited = FALSE;
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waveInReset(waveIn);
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waveInClose(waveIn);
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return TRUE;
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}
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#endif
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BOOL Mic_Init_Physical()
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{
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if(Mic_Inited)
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return TRUE;
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Mic_Inited = FALSE;
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HRESULT hr;
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WAVEFORMATEX wfx;
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memset(Mic_TempBuf, 0x80, MIC_BUFSIZE);
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memset(Mic_Buffer[0], 0x80, MIC_BUFSIZE);
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memset(Mic_Buffer[1], 0x80, MIC_BUFSIZE);
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Mic_BufPos = 0;
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Mic_WriteBuf = 0;
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Mic_PlayBuf = 1;
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memset(&wfx, 0, sizeof(wfx));
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wfx.cbSize = 0;
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wfx.wFormatTag = WAVE_FORMAT_PCM;
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wfx.nChannels = 1;
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wfx.nSamplesPerSec = 16000;
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wfx.nBlockAlign = 1;
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wfx.nAvgBytesPerSec = 16000;
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wfx.wBitsPerSample = 8;
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hr = waveInOpen(&waveIn, WAVE_MAPPER, &wfx, (DWORD_PTR)waveInProc, 0, CALLBACK_FUNCTION);
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MIC_CHECKERR(hr)
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memset(&waveHdr, 0, sizeof(waveHdr));
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waveHdr.lpData = (LPSTR)Mic_TempBuf;
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waveHdr.dwBufferLength = MIC_BUFSIZE;
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hr = waveInPrepareHeader(waveIn, &waveHdr, sizeof(WAVEHDR));
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MIC_CHECKERR(hr)
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hr = waveInAddBuffer(waveIn, &waveHdr, sizeof(WAVEHDR));
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MIC_CHECKERR(hr)
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hr = waveInStart(waveIn);
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MIC_CHECKERR(hr)
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Mic_Inited = TRUE;
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INFO("win32 microphone init OK\n");
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return TRUE;
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}
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BOOL Mic_Init() {
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micReadSamplePos = 0;
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return TRUE;
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}
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void Mic_Reset()
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{
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micReadSamplePos = 0;
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if(!Mic_Inited)
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return;
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//reset physical
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memset(Mic_TempBuf, 0x80, MIC_BUFSIZE);
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memset(Mic_Buffer[0], 0x80, MIC_BUFSIZE);
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memset(Mic_Buffer[1], 0x80, MIC_BUFSIZE);
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Mic_BufPos = 0;
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Mic_WriteBuf = 0;
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Mic_PlayBuf = 1;
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}
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void Mic_DeInit()
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{
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}
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static const u8 random[32] =
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{
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0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF5, 0xFF, 0xFF, 0xFF, 0xFF, 0x8E, 0xFF,
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0xF4, 0xE1, 0xBF, 0x9A, 0x71, 0x58, 0x5B, 0x5F, 0x62, 0xC2, 0x25, 0x05, 0x01, 0x01, 0x01, 0x01,
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} ;
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u8 Mic_ReadSample()
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{
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u8 ret;
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u8 tmp;
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if(CommonSettings.micMode == TCommonSettings::Physical)
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{
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if(movieMode == MOVIEMODE_INACTIVE)
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{
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//normal mic behavior
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tmp = (u8)Mic_Buffer[Mic_PlayBuf][Mic_BufPos >> 1];
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}
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else
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{
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//since we're not recording Mic_Buffer to the movie, use silence
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tmp = 0x80;
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}
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}
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else
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{
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if(NDS_getFinalUserInput().mic.micButtonPressed)
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{
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if(SampleLoaded)
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{
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//use a sample
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//TODO: what if a movie is active?
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// for now I'm going to hope that if anybody records a movie with a sample loaded,
|
||||
// either they know what they're doing and plan to distribute the sample,
|
||||
// or they're playing a game where it doesn't even matter or they never press the mic button.
|
||||
tmp = samplebuffer[micReadSamplePos >> 1];
|
||||
micReadSamplePos++;
|
||||
if(micReadSamplePos == samplebuffersize*2)
|
||||
micReadSamplePos=0;
|
||||
}
|
||||
else
|
||||
{
|
||||
//use the "random" values
|
||||
if(CommonSettings.micMode == TCommonSettings::InternalNoise)
|
||||
tmp = random[micReadSamplePos >> 1];
|
||||
else tmp = rand();
|
||||
micReadSamplePos++;
|
||||
if(micReadSamplePos == ARRAY_SIZE(random)*2)
|
||||
micReadSamplePos=0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
tmp = 0x80;
|
||||
|
||||
//reset mic button buffer pos if not pressed
|
||||
micReadSamplePos=0;
|
||||
}
|
||||
}
|
||||
|
||||
if(Mic_BufPos & 0x1)
|
||||
{
|
||||
ret = ((tmp & 0x1) << 7);
|
||||
}
|
||||
else
|
||||
{
|
||||
ret = ((tmp & 0xFE) >> 1);
|
||||
}
|
||||
|
||||
MicDisplay = tmp;
|
||||
|
||||
Mic_BufPos++;
|
||||
if(Mic_BufPos >= (MIC_BUFSIZE << 1))
|
||||
{
|
||||
Mic_BufPos = 0;
|
||||
Mic_PlayBuf ^= 1;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
// maybe a bit paranoid...
|
||||
void mic_savestate(EMUFILE* os)
|
||||
{
|
||||
//version
|
||||
write32le(1,os);
|
||||
assert(MIC_BUFSIZE == 4096); // else needs new version
|
||||
|
||||
os->fwrite((char*)Mic_Buffer[0], MIC_BUFSIZE);
|
||||
os->fwrite((char*)Mic_Buffer[1], MIC_BUFSIZE);
|
||||
write16le(Mic_BufPos,os);
|
||||
write8le(Mic_WriteBuf,os); // seems OK to save...
|
||||
write8le(Mic_PlayBuf,os);
|
||||
write32le(micReadSamplePos,os);
|
||||
}
|
||||
bool mic_loadstate(EMUFILE* is, int size)
|
||||
{
|
||||
u32 version;
|
||||
if(read32le(&version,is) != 1) return false;
|
||||
if(version > 1 || version == 0) { is->fseek(size-4, SEEK_CUR); return true; }
|
||||
|
||||
is->fread((char*)Mic_Buffer[0], MIC_BUFSIZE);
|
||||
is->fread((char*)Mic_Buffer[1], MIC_BUFSIZE);
|
||||
read16le(&Mic_BufPos,is);
|
||||
read8le(&Mic_WriteBuf,is);
|
||||
read8le(&Mic_PlayBuf,is);
|
||||
read32le(&micReadSamplePos,is);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue