689 lines
21 KiB
C++
689 lines
21 KiB
C++
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//--------------------------------------------------------------------------------------
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// File: WAVFileReader.cpp
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//
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// Functions for loading WAV audio files
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248929
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//-------------------------------------------------------------------------------------
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#include "pch.h"
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#include "PlatformHelpers.h"
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#include "WAVFileReader.h"
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using namespace DirectX;
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namespace
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{
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//--------------------------------------------------------------------------------------
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// .WAV files
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//--------------------------------------------------------------------------------------
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const uint32_t FOURCC_RIFF_TAG = 'FFIR';
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const uint32_t FOURCC_FORMAT_TAG = ' tmf';
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const uint32_t FOURCC_DATA_TAG = 'atad';
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const uint32_t FOURCC_WAVE_FILE_TAG = 'EVAW';
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const uint32_t FOURCC_XWMA_FILE_TAG = 'AMWX';
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const uint32_t FOURCC_DLS_SAMPLE = 'pmsw';
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const uint32_t FOURCC_MIDI_SAMPLE = 'lpms';
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const uint32_t FOURCC_XWMA_DPDS = 'sdpd';
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const uint32_t FOURCC_XMA_SEEK = 'kees';
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#pragma pack(push,1)
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struct RIFFChunk
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{
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uint32_t tag;
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uint32_t size;
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};
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struct RIFFChunkHeader
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{
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uint32_t tag;
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uint32_t size;
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uint32_t riff;
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};
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struct DLSLoop
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{
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static const uint32_t LOOP_TYPE_FORWARD = 0x00000000;
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static const uint32_t LOOP_TYPE_RELEASE = 0x00000001;
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uint32_t size;
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uint32_t loopType;
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uint32_t loopStart;
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uint32_t loopLength;
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};
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struct RIFFDLSSample
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{
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static const uint32_t OPTIONS_NOTRUNCATION = 0x00000001;
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static const uint32_t OPTIONS_NOCOMPRESSION = 0x00000002;
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uint32_t size;
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uint16_t unityNote;
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int16_t fineTune;
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int32_t gain;
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uint32_t options;
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uint32_t loopCount;
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};
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struct MIDILoop
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{
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static const uint32_t LOOP_TYPE_FORWARD = 0x00000000;
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static const uint32_t LOOP_TYPE_ALTERNATING = 0x00000001;
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static const uint32_t LOOP_TYPE_BACKWARD = 0x00000002;
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uint32_t cuePointId;
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uint32_t type;
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uint32_t start;
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uint32_t end;
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uint32_t fraction;
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uint32_t playCount;
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};
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struct RIFFMIDISample
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{
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uint32_t manufacturerId;
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uint32_t productId;
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uint32_t samplePeriod;
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uint32_t unityNode;
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uint32_t pitchFraction;
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uint32_t SMPTEFormat;
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uint32_t SMPTEOffset;
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uint32_t loopCount;
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uint32_t samplerData;
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};
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#pragma pack(pop)
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static_assert( sizeof(RIFFChunk) == 8, "structure size mismatch");
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static_assert( sizeof(RIFFChunkHeader) == 12, "structure size mismatch");
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static_assert( sizeof(DLSLoop) == 16, "structure size mismatch");
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static_assert( sizeof(RIFFDLSSample) == 20, "structure size mismatch");
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static_assert( sizeof(MIDILoop) == 24, "structure size mismatch");
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static_assert( sizeof(RIFFMIDISample) == 36, "structure size mismatch");
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};
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//--------------------------------------------------------------------------------------
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static const RIFFChunk* FindChunk( _In_reads_bytes_(sizeBytes) const uint8_t* data, _In_ size_t sizeBytes, _In_ uint32_t tag )
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{
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if ( !data )
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return nullptr;
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const uint8_t* ptr = data;
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const uint8_t* end = data + sizeBytes;
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while ( end > ( ptr + sizeof(RIFFChunk) ) )
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{
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auto header = reinterpret_cast<const RIFFChunk*>( ptr );
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if ( header->tag == tag )
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return header;
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ptrdiff_t offset = header->size + sizeof(RIFFChunk);
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ptr += offset;
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}
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return nullptr;
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}
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//--------------------------------------------------------------------------------------
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static HRESULT WaveFindFormatAndData( _In_reads_bytes_(wavDataSize) const uint8_t* wavData, _In_ size_t wavDataSize,
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_Outptr_ const WAVEFORMATEX** pwfx, _Outptr_ const uint8_t** pdata, _Out_ uint32_t* dataSize,
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_Out_ bool& dpds, _Out_ bool& seek )
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{
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if ( !wavData || !pwfx )
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return E_POINTER;
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dpds = seek = false;
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if (wavDataSize < (sizeof(RIFFChunk)*2 + sizeof(uint32_t) + sizeof(WAVEFORMAT) ) )
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{
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return E_FAIL;
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}
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const uint8_t* wavEnd = wavData + wavDataSize;
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// Locate RIFF 'WAVE'
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auto riffChunk = FindChunk( wavData, wavDataSize, FOURCC_RIFF_TAG );
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if ( !riffChunk || riffChunk->size < 4 )
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{
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return E_FAIL;
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}
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auto riffHeader = reinterpret_cast<const RIFFChunkHeader*>( riffChunk );
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if ( riffHeader->riff != FOURCC_WAVE_FILE_TAG && riffHeader->riff != FOURCC_XWMA_FILE_TAG )
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{
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return E_FAIL;
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}
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// Locate 'fmt '
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auto ptr = reinterpret_cast<const uint8_t*>( riffHeader ) + sizeof(RIFFChunkHeader);
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if ( ( ptr + sizeof(RIFFChunk) ) > wavEnd )
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{
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return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
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}
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auto fmtChunk = FindChunk( ptr, riffHeader->size, FOURCC_FORMAT_TAG );
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if ( !fmtChunk || fmtChunk->size < sizeof(PCMWAVEFORMAT) )
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{
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return E_FAIL;
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}
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ptr = reinterpret_cast<const uint8_t*>( fmtChunk ) + sizeof( RIFFChunk );
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if ( ptr + fmtChunk->size > wavEnd )
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{
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return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
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}
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auto wf = reinterpret_cast<const WAVEFORMAT*>( ptr );
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// Validate WAVEFORMAT (focused on chunk size and format tag, not other data that XAUDIO2 will validate)
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switch( wf->wFormatTag )
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{
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case WAVE_FORMAT_PCM:
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case WAVE_FORMAT_IEEE_FLOAT:
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// Can be a PCMWAVEFORMAT (8 bytes) or WAVEFORMATEX (10 bytes)
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// We validiated chunk as at least sizeof(PCMWAVEFORMAT) above
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break;
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default:
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{
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if ( fmtChunk->size < sizeof(WAVEFORMATEX) )
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{
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return E_FAIL;
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}
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auto wfx = reinterpret_cast<const WAVEFORMATEX*>( ptr );
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if ( fmtChunk->size < ( sizeof(WAVEFORMATEX) + wfx->cbSize ) )
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{
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return E_FAIL;
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}
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switch( wfx->wFormatTag )
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{
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case WAVE_FORMAT_WMAUDIO2:
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case WAVE_FORMAT_WMAUDIO3:
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dpds = true;
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break;
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case 0x166 /*WAVE_FORMAT_XMA2*/: // XMA2 is supported by Xbox One
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if ( ( fmtChunk->size < 52 /*sizeof(XMA2WAVEFORMATEX)*/ ) || ( wfx->cbSize < 34 /*( sizeof(XMA2WAVEFORMATEX) - sizeof(WAVEFORMATEX) )*/ ) )
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{
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return E_FAIL;
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}
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seek = true;
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break;
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case WAVE_FORMAT_ADPCM:
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if ( ( fmtChunk->size < ( sizeof(WAVEFORMATEX) + 32 ) ) || ( wfx->cbSize < 32 /*MSADPCM_FORMAT_EXTRA_BYTES*/ ) )
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{
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return E_FAIL;
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}
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break;
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case WAVE_FORMAT_EXTENSIBLE:
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if ( ( fmtChunk->size < sizeof(WAVEFORMATEXTENSIBLE) ) || ( wfx->cbSize < ( sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX) ) ) )
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{
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return E_FAIL;
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}
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else
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{
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static const GUID s_wfexBase = {0x00000000, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71};
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auto wfex = reinterpret_cast<const WAVEFORMATEXTENSIBLE*>( ptr );
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if ( memcmp( reinterpret_cast<const BYTE*>(&wfex->SubFormat) + sizeof(DWORD),
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reinterpret_cast<const BYTE*>(&s_wfexBase) + sizeof(DWORD), sizeof(GUID) - sizeof(DWORD) ) != 0 )
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{
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return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
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}
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switch( wfex->SubFormat.Data1 )
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{
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case WAVE_FORMAT_PCM:
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case WAVE_FORMAT_IEEE_FLOAT:
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break;
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// MS-ADPCM and XMA2 are not supported as WAVEFORMATEXTENSIBLE
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case WAVE_FORMAT_WMAUDIO2:
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case WAVE_FORMAT_WMAUDIO3:
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dpds = true;
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break;
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default:
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return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
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}
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}
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break;
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default:
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return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
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}
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}
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}
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// Locate 'data'
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ptr = reinterpret_cast<const uint8_t*>( riffHeader ) + sizeof(RIFFChunkHeader);
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if ( ( ptr + sizeof(RIFFChunk) ) > wavEnd )
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{
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return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
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}
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auto dataChunk = FindChunk( ptr, riffChunk->size, FOURCC_DATA_TAG );
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if ( !dataChunk || !dataChunk->size )
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{
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return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
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}
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ptr = reinterpret_cast<const uint8_t*>( dataChunk ) + sizeof( RIFFChunk );
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if ( ptr + dataChunk->size > wavEnd )
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{
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return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
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}
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*pwfx = reinterpret_cast<const WAVEFORMATEX*>( wf );
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*pdata = ptr;
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*dataSize = dataChunk->size;
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return S_OK;
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}
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//--------------------------------------------------------------------------------------
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static HRESULT WaveFindLoopInfo( _In_reads_bytes_(wavDataSize) const uint8_t* wavData, _In_ size_t wavDataSize,
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_Out_ uint32_t* pLoopStart, _Out_ uint32_t* pLoopLength )
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{
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if ( !wavData || !pLoopStart || !pLoopLength )
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return E_POINTER;
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if (wavDataSize < ( sizeof(RIFFChunk) + sizeof(uint32_t) ) )
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{
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return E_FAIL;
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}
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*pLoopStart = 0;
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*pLoopLength = 0;
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const uint8_t* wavEnd = wavData + wavDataSize;
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// Locate RIFF 'WAVE'
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auto riffChunk = FindChunk( wavData, wavDataSize, FOURCC_RIFF_TAG );
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if ( !riffChunk || riffChunk->size < 4 )
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{
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return E_FAIL;
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}
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auto riffHeader = reinterpret_cast<const RIFFChunkHeader*>( riffChunk );
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if ( riffHeader->riff == FOURCC_XWMA_FILE_TAG )
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{
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// xWMA files do not contain loop information
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return S_OK;
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}
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if ( riffHeader->riff != FOURCC_WAVE_FILE_TAG )
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{
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return E_FAIL;
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}
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// Locate 'wsmp' (DLS Chunk)
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auto ptr = reinterpret_cast<const uint8_t*>( riffHeader ) + sizeof(RIFFChunkHeader);
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if ( ( ptr + sizeof(RIFFChunk) ) > wavEnd )
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{
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return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
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}
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auto dlsChunk = FindChunk( ptr, riffChunk->size, FOURCC_DLS_SAMPLE );
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if ( dlsChunk )
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{
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ptr = reinterpret_cast<const uint8_t*>( dlsChunk ) + sizeof( RIFFChunk );
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if ( ptr + dlsChunk->size > wavEnd )
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{
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return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
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}
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if ( dlsChunk->size >= sizeof(RIFFDLSSample) )
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{
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auto dlsSample = reinterpret_cast<const RIFFDLSSample*>( ptr );
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if ( dlsChunk->size >= ( dlsSample->size + dlsSample->loopCount * sizeof(DLSLoop) ) )
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{
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auto loops = reinterpret_cast<const DLSLoop*>( ptr + dlsSample->size );
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for( uint32_t j = 0; j < dlsSample->loopCount; ++j )
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{
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if ( ( loops[j].loopType == DLSLoop::LOOP_TYPE_FORWARD || loops[j].loopType == DLSLoop::LOOP_TYPE_RELEASE ) )
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{
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// Return 'forward' loop
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*pLoopStart = loops[j].loopStart;
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*pLoopLength = loops[j].loopLength;
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return S_OK;
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}
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}
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}
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}
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}
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// Locate 'smpl' (Sample Chunk)
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auto midiChunk = FindChunk( ptr, riffChunk->size, FOURCC_MIDI_SAMPLE );
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if ( midiChunk )
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{
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ptr = reinterpret_cast<const uint8_t*>( midiChunk ) + sizeof( RIFFChunk );
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if ( ptr + midiChunk->size > wavEnd )
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{
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return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
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}
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if ( midiChunk->size >= sizeof(RIFFMIDISample) )
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{
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auto midiSample = reinterpret_cast<const RIFFMIDISample*>( ptr );
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if ( midiChunk->size >= ( sizeof(RIFFMIDISample) + midiSample->loopCount * sizeof(MIDILoop) ) )
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{
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auto loops = reinterpret_cast<const MIDILoop*>( ptr + sizeof(RIFFMIDISample) );
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for( uint32_t j = 0; j < midiSample->loopCount; ++j )
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{
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if ( loops[j].type == MIDILoop::LOOP_TYPE_FORWARD )
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{
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// Return 'forward' loop
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*pLoopStart = loops[j].start;
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*pLoopLength = loops[j].end + loops[j].start + 1;
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return S_OK;
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}
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}
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}
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}
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}
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return S_OK;
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}
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//--------------------------------------------------------------------------------------
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static HRESULT WaveFindTable( _In_reads_bytes_(wavDataSize) const uint8_t* wavData, _In_ size_t wavDataSize, _In_ uint32_t tag,
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_Outptr_result_maybenull_ const uint32_t** pData, _Out_ uint32_t* dataCount )
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{
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if ( !wavData || !pData || !dataCount )
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return E_POINTER;
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if (wavDataSize < ( sizeof(RIFFChunk) + sizeof(uint32_t) ) )
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{
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return E_FAIL;
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}
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*pData = nullptr;
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*dataCount = 0;
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const uint8_t* wavEnd = wavData + wavDataSize;
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// Locate RIFF 'WAVE'
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auto riffChunk = FindChunk( wavData, wavDataSize, FOURCC_RIFF_TAG );
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if ( !riffChunk || riffChunk->size < 4 )
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{
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return E_FAIL;
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}
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||
|
auto riffHeader = reinterpret_cast<const RIFFChunkHeader*>( riffChunk );
|
||
|
if ( riffHeader->riff != FOURCC_WAVE_FILE_TAG && riffHeader->riff != FOURCC_XWMA_FILE_TAG )
|
||
|
{
|
||
|
return E_FAIL;
|
||
|
}
|
||
|
|
||
|
// Locate tag
|
||
|
auto ptr = reinterpret_cast<const uint8_t*>( riffHeader ) + sizeof(RIFFChunkHeader);
|
||
|
if ( ( ptr + sizeof(RIFFChunk) ) > wavEnd )
|
||
|
{
|
||
|
return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
|
||
|
}
|
||
|
|
||
|
auto tableChunk = FindChunk( ptr, riffChunk->size, tag );
|
||
|
if ( tableChunk )
|
||
|
{
|
||
|
ptr = reinterpret_cast<const uint8_t*>( tableChunk ) + sizeof( RIFFChunk );
|
||
|
if ( ptr + tableChunk->size > wavEnd )
|
||
|
{
|
||
|
return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
|
||
|
}
|
||
|
|
||
|
if ( ( tableChunk->size % sizeof(uint32_t) ) != 0 )
|
||
|
{
|
||
|
return E_FAIL;
|
||
|
}
|
||
|
|
||
|
*pData = reinterpret_cast<const uint32_t*>( ptr );
|
||
|
*dataCount = tableChunk->size / 4;
|
||
|
}
|
||
|
|
||
|
return S_OK;
|
||
|
}
|
||
|
|
||
|
|
||
|
//--------------------------------------------------------------------------------------
|
||
|
static HRESULT LoadAudioFromFile( _In_z_ const wchar_t* szFileName, _Inout_ std::unique_ptr<uint8_t[]>& wavData, _Out_ DWORD* bytesRead )
|
||
|
{
|
||
|
if ( !szFileName )
|
||
|
return E_INVALIDARG;
|
||
|
|
||
|
// open the file
|
||
|
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
|
||
|
ScopedHandle hFile( safe_handle( CreateFile2( szFileName,
|
||
|
GENERIC_READ,
|
||
|
FILE_SHARE_READ,
|
||
|
OPEN_EXISTING,
|
||
|
nullptr ) ) );
|
||
|
#else
|
||
|
ScopedHandle hFile( safe_handle( CreateFileW( szFileName,
|
||
|
GENERIC_READ,
|
||
|
FILE_SHARE_READ,
|
||
|
nullptr,
|
||
|
OPEN_EXISTING,
|
||
|
FILE_ATTRIBUTE_NORMAL,
|
||
|
nullptr ) ) );
|
||
|
#endif
|
||
|
|
||
|
if ( !hFile )
|
||
|
{
|
||
|
return HRESULT_FROM_WIN32( GetLastError() );
|
||
|
}
|
||
|
|
||
|
// Get the file size
|
||
|
LARGE_INTEGER FileSize = { 0 };
|
||
|
|
||
|
#if (_WIN32_WINNT >= _WIN32_WINNT_VISTA)
|
||
|
FILE_STANDARD_INFO fileInfo;
|
||
|
if ( !GetFileInformationByHandleEx( hFile.get(), FileStandardInfo, &fileInfo, sizeof(fileInfo) ) )
|
||
|
{
|
||
|
return HRESULT_FROM_WIN32( GetLastError() );
|
||
|
}
|
||
|
FileSize = fileInfo.EndOfFile;
|
||
|
#else
|
||
|
GetFileSizeEx( hFile.get(), &FileSize );
|
||
|
#endif
|
||
|
|
||
|
// File is too big for 32-bit allocation, so reject read
|
||
|
if (FileSize.HighPart > 0)
|
||
|
{
|
||
|
return E_FAIL;
|
||
|
}
|
||
|
|
||
|
// Need at least enough data to have a valid minimal WAV file
|
||
|
if (FileSize.LowPart < ( sizeof(RIFFChunk)*2 + sizeof(DWORD) + sizeof(WAVEFORMAT) ) )
|
||
|
{
|
||
|
return E_FAIL;
|
||
|
}
|
||
|
|
||
|
// create enough space for the file data
|
||
|
wavData.reset( new (std::nothrow) uint8_t[ FileSize.LowPart ] );
|
||
|
if (!wavData)
|
||
|
{
|
||
|
return E_OUTOFMEMORY;
|
||
|
}
|
||
|
|
||
|
// read the data in
|
||
|
if (!ReadFile( hFile.get(),
|
||
|
wavData.get(),
|
||
|
FileSize.LowPart,
|
||
|
bytesRead,
|
||
|
nullptr
|
||
|
))
|
||
|
{
|
||
|
return HRESULT_FROM_WIN32( GetLastError() );
|
||
|
}
|
||
|
|
||
|
return (*bytesRead < FileSize.LowPart) ? E_FAIL : S_OK;
|
||
|
}
|
||
|
|
||
|
|
||
|
//--------------------------------------------------------------------------------------
|
||
|
_Use_decl_annotations_
|
||
|
HRESULT DirectX::LoadWAVAudioInMemory( const uint8_t* wavData,
|
||
|
size_t wavDataSize,
|
||
|
const WAVEFORMATEX** wfx,
|
||
|
const uint8_t** startAudio,
|
||
|
uint32_t* audioBytes )
|
||
|
{
|
||
|
if ( !wavData || !wfx || !startAudio || !audioBytes )
|
||
|
return E_INVALIDARG;
|
||
|
|
||
|
*wfx = nullptr;
|
||
|
*startAudio = nullptr;
|
||
|
*audioBytes = 0;
|
||
|
|
||
|
// Need at least enough data to have a valid minimal WAV file
|
||
|
if (wavDataSize < (sizeof(RIFFChunk)*2 + sizeof(DWORD) + sizeof(WAVEFORMAT) ) )
|
||
|
{
|
||
|
return E_FAIL;
|
||
|
}
|
||
|
|
||
|
bool dpds, seek;
|
||
|
HRESULT hr = WaveFindFormatAndData( wavData, wavDataSize, wfx, startAudio, audioBytes, dpds, seek );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
|
||
|
return (dpds || seek) ? E_FAIL : S_OK;
|
||
|
}
|
||
|
|
||
|
|
||
|
//--------------------------------------------------------------------------------------
|
||
|
_Use_decl_annotations_
|
||
|
HRESULT DirectX::LoadWAVAudioFromFile( const wchar_t* szFileName,
|
||
|
std::unique_ptr<uint8_t[]>& wavData,
|
||
|
const WAVEFORMATEX** wfx,
|
||
|
const uint8_t** startAudio,
|
||
|
uint32_t* audioBytes )
|
||
|
{
|
||
|
if ( !szFileName || !wfx || !startAudio || !audioBytes )
|
||
|
return E_INVALIDARG;
|
||
|
|
||
|
*wfx = nullptr;
|
||
|
*startAudio = nullptr;
|
||
|
*audioBytes = 0;
|
||
|
|
||
|
DWORD bytesRead = 0;
|
||
|
HRESULT hr = LoadAudioFromFile( szFileName, wavData, &bytesRead );
|
||
|
if ( FAILED(hr) )
|
||
|
{
|
||
|
return hr;
|
||
|
}
|
||
|
|
||
|
bool dpds, seek;
|
||
|
hr = WaveFindFormatAndData( wavData.get(), bytesRead, wfx, startAudio, audioBytes, dpds, seek );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
|
||
|
return (dpds || seek) ? E_FAIL : S_OK;
|
||
|
}
|
||
|
|
||
|
|
||
|
//--------------------------------------------------------------------------------------
|
||
|
_Use_decl_annotations_
|
||
|
HRESULT DirectX::LoadWAVAudioInMemoryEx( const uint8_t* wavData, size_t wavDataSize, DirectX::WAVData& result )
|
||
|
{
|
||
|
if ( !wavData )
|
||
|
return E_INVALIDARG;
|
||
|
|
||
|
memset( &result, 0, sizeof(result) );
|
||
|
|
||
|
// Need at least enough data to have a valid minimal WAV file
|
||
|
if (wavDataSize < (sizeof(RIFFChunk)*2 + sizeof(DWORD) + sizeof(WAVEFORMAT) ) )
|
||
|
{
|
||
|
return E_FAIL;
|
||
|
}
|
||
|
|
||
|
bool dpds, seek;
|
||
|
HRESULT hr = WaveFindFormatAndData( wavData, wavDataSize, &result.wfx, &result.startAudio, &result.audioBytes, dpds, seek );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
|
||
|
hr = WaveFindLoopInfo( wavData, wavDataSize, &result.loopStart, &result.loopLength );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
|
||
|
if ( dpds )
|
||
|
{
|
||
|
hr = WaveFindTable( wavData, wavDataSize, FOURCC_XWMA_DPDS, &result.seek, &result.seekCount );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
}
|
||
|
else if ( seek )
|
||
|
{
|
||
|
hr = WaveFindTable( wavData, wavDataSize, FOURCC_XMA_SEEK, &result.seek, &result.seekCount );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
}
|
||
|
|
||
|
return S_OK;
|
||
|
}
|
||
|
|
||
|
|
||
|
//--------------------------------------------------------------------------------------
|
||
|
_Use_decl_annotations_
|
||
|
HRESULT DirectX::LoadWAVAudioFromFileEx( const wchar_t* szFileName, std::unique_ptr<uint8_t[]>& wavData, DirectX::WAVData& result )
|
||
|
{
|
||
|
if ( !szFileName )
|
||
|
return E_INVALIDARG;
|
||
|
|
||
|
memset( &result, 0, sizeof(result) );
|
||
|
|
||
|
DWORD bytesRead = 0;
|
||
|
HRESULT hr = LoadAudioFromFile( szFileName, wavData, &bytesRead );
|
||
|
if ( FAILED(hr) )
|
||
|
{
|
||
|
return hr;
|
||
|
}
|
||
|
|
||
|
bool dpds, seek;
|
||
|
hr = WaveFindFormatAndData( wavData.get(), bytesRead, &result.wfx, &result.startAudio, &result.audioBytes, dpds, seek );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
|
||
|
hr = WaveFindLoopInfo( wavData.get(), bytesRead, &result.loopStart, &result.loopLength );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
|
||
|
if ( dpds )
|
||
|
{
|
||
|
hr = WaveFindTable( wavData.get(), bytesRead, FOURCC_XWMA_DPDS, &result.seek, &result.seekCount );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
}
|
||
|
else if ( seek )
|
||
|
{
|
||
|
hr = WaveFindTable( wavData.get(), bytesRead, FOURCC_XMA_SEEK, &result.seek, &result.seekCount );
|
||
|
if ( FAILED(hr) )
|
||
|
return hr;
|
||
|
}
|
||
|
|
||
|
return S_OK;
|
||
|
}
|
||
|
|