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#include "nw4r/snd/snd_WaveFile.h"
/* Original source:
* kiwi515/ogws
* src/nw4r/snd/snd_WaveFile.cpp
*/
/*******************************************************************************
* headers
*/
#include "common.h"
#include "nw4r/snd/snd_AxVoice.h"
#include "nw4r/snd/snd_Channel.h"
#include "nw4r/snd/snd_global.h"
#include "nw4r/ut/ut_algorithm.h" // ut::AddOffsetToPtr
#include "nw4r/ut/ut_binaryFileFormat.h"
#include "nw4r/NW4RAssert.hpp"
/*******************************************************************************
* functions
*/
namespace nw4r { namespace snd { namespace detail {
WaveFileReader::WaveFileReader(WaveFile::FileHeader const *waveFileHeader) :
mWaveInfo (nullptr)
{
NW4RAssert_Line(42, waveFileHeader->fileHeader.signature
== WaveFile::SIGNATURE_FILE);
WaveFile::InfoBlock const *infoBlock =
static_cast<WaveFile::InfoBlock const *>(ut::AddOffsetToPtr(
waveFileHeader, waveFileHeader->infoChunkOffset));
if (!infoBlock)
return;
NW4RAssert_Line(48, infoBlock->blockHeader.kind
== WaveFile::SIGNATURE_INFO_BLOCK);
mWaveInfo = &infoBlock->waveInfo;
}
WaveFileReader::WaveFileReader(WaveFile::WaveInfo const *waveInfo) :
mWaveInfo (waveInfo)
{
}
bool WaveFileReader::ReadWaveInfo(WaveInfo *waveData,
void const *waveDataOffsetOrigin) const
{
NW4RAssertPointerNonnull_Line(79, mWaveInfo);
SampleFormat sampleFormat =
GetSampleFormatFromWaveFileFormat(mWaveInfo->format);
waveData->sampleFormat = sampleFormat;
waveData->numChannels = mWaveInfo->numChannels;
waveData->sampleRate =
(mWaveInfo->sampleRate24 << 16) + mWaveInfo->sampleRate;
waveData->loopFlag = mWaveInfo->loopFlag;
waveData->loopStart = AxVoice::GetSampleByDspAddress(
nullptr, mWaveInfo->loopStart, sampleFormat);
waveData->loopEnd = AxVoice::GetSampleByDspAddress(
nullptr, mWaveInfo->loopEnd, sampleFormat) + 1;
u32 const *channelInfoOffset = static_cast<u32 const *>(
ut::AddOffsetToPtr(mWaveInfo, mWaveInfo->channelInfoTableOffset));
for (int channelIndex = 0; channelIndex < mWaveInfo->numChannels;
channelIndex++)
{
if (channelIndex >= Channel::CHANNEL_MAX)
continue;
ChannelParam &channelParam = waveData->channelParam[channelIndex];
WaveFile::WaveChannelInfo const *waveChannelInfo =
static_cast<WaveFile::WaveChannelInfo const *>(
ut::AddOffsetToPtr(mWaveInfo, channelInfoOffset[channelIndex]));
if (waveChannelInfo->adpcmOffset)
{
WaveFile::AdpcmParamSet const *adpcmParamSet =
static_cast<WaveFile::AdpcmParamSet const *>(ut::AddOffsetToPtr(
mWaveInfo, waveChannelInfo->adpcmOffset));
channelParam.adpcmParam = adpcmParamSet->adpcmParam;
channelParam.adpcmLoopParam = adpcmParamSet->adpcmLoopParam;
}
channelParam.dataAddr = const_cast<void *>(
GetWaveDataAddress(waveChannelInfo, waveDataOffsetOrigin));
}
return true;
}
void const *WaveFileReader::GetWaveDataAddress(
WaveFile::WaveChannelInfo const *waveChannelInfo,
void const *waveDataOffsetOrigin) const
{
NW4RAssertPointerNonnull_Line(128, mWaveInfo);
NW4RAssertPointerNonnull_Line(129, waveChannelInfo);
void const *waveDataAddress = nullptr;
bool offsetIsDataBlock = waveDataOffsetOrigin == nullptr;
if (!waveDataOffsetOrigin)
waveDataOffsetOrigin = mWaveInfo;
// TODO: InstInfo::WaveDataLocation::WaveDataLocationType?
switch (mWaveInfo->dataLocationType)
{
case 0:
waveDataAddress =
ut::AddOffsetToPtr(waveDataOffsetOrigin, mWaveInfo->dataLocation);
// TODO: sizeof(InstInfo::WaveDataLocation)?
if (offsetIsDataBlock)
waveDataAddress = ut::AddOffsetToPtr(waveDataAddress, 8);
break;
case 1:
waveDataAddress =
reinterpret_cast<void const *>(mWaveInfo->dataLocation);
break;
default:
return nullptr;
}
waveDataAddress = ut::AddOffsetToPtr(
waveDataAddress, waveChannelInfo->channelDataOffset);
return waveDataAddress;
}
SampleFormat WaveFileReader::GetSampleFormatFromWaveFileFormat(u8 format)
{
switch (format)
{
case 2:
return SAMPLE_FORMAT_DSP_ADPCM;
case 1:
return SAMPLE_FORMAT_PCM_S16;
case 0:
return SAMPLE_FORMAT_PCM_S8;
default:
NW4RPanicMessage_Line(167, "Unknown wave data format %d", format);
return SAMPLE_FORMAT_DSP_ADPCM;
}
}
}}} // namespace nw4r::snd::detail
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