| 1 |
/* |
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* WavePlay.cs |
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* Copyright (c) 2009 kbinani |
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* |
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* This file is part of Boare.Lib.Media. |
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* |
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* Boare.Lib.Media is free software; you can redistribute it and/or |
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* modify it under the terms of the BSD License. |
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* |
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* Boare.Lib.Media 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. |
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*/ |
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using System; |
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using System.Runtime.InteropServices; |
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|
| 17 |
using bocoree; |
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|
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namespace Boare.Lib.Media { |
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|
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public delegate void FirstBufferWrittenCallback(); |
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|
| 23 |
public unsafe class WavePlay { |
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const int _NUM_BUF = 3; // バッファの数 |
| 25 |
int s_block_size; // 1個のバッファのサイズ(サンプル) |
| 26 |
int s_sample_rate; // サンプリングレート |
| 27 |
WAVEFORMATEX s_wave_formatx; // WAVEファイルヘッダ |
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//IntPtr s_ptr_wave_formatx; |
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IntPtr s_hwave_out; // WAVE再生デバイス |
| 30 |
|
| 31 |
WAVEHDR[] s_wave_header = new WAVEHDR[_NUM_BUF];// WAVEヘッダ |
| 32 |
IntPtr[] s_ptr_wave_header = new IntPtr[_NUM_BUF]; |
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|
| 34 |
uint*[] s_wave = new uint*[_NUM_BUF]; // バッファ |
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IntPtr[] s_ptr_wave = new IntPtr[_NUM_BUF]; |
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|
| 37 |
bool[] s_done = new bool[_NUM_BUF]; |
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int s_current_buffer; // 次回書き込むべきバッファのインデクス |
| 39 |
uint s_processed_count; // 初回はバッファを_NUM_BUF個全部埋めなければいけないので、最初の _NUM_BUF + 1 回はカウントを行う。そのためのカウンタ |
| 40 |
bool s_abort_required; // 再生の中断が要求された時立つフラグ |
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int s_buffer_loc; // 書き込み中のバッファ内の、現在位置 |
| 42 |
bool s_playing; // 再生中かどうかを表すフラグ |
| 43 |
int s_error_samples; // appendされた波形データの内、先頭のs_error_samples分を省く。通常の使い方なら常に0だが、vocaloid2 vstiで使う場合、プリセンド分を除いてwaveOutWriteしなければいけないので非0になる。 |
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int s_last_buffer; // 最後に再生されるバッファの番号。負値の場合、append_lastが未だ呼ばれていないことを意味する。 |
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FirstBufferWrittenCallback s_first_buffer_written_callback; // 最初のバッファが書き込まれたとき呼び出されるコールバック関数 |
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WaveReader[] s_wave_reader; |
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int s_num_wave_reader; // s_wave_readerの個数 |
| 48 |
float*[] s_another_wave_l; |
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IntPtr[] s_ptr_another_wave_l; |
| 50 |
float*[] s_another_wave_r; |
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IntPtr[] s_ptr_another_wave_r; |
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long s_wave_read_offset_samples; |
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float* s_wave_buffer_l; |
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IntPtr s_ptr_wave_buffer_l; |
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float* s_wave_buffer_r; |
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IntPtr s_ptr_wave_buffer_r; |
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|
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delegateWaveOutProc s_wave_callback; |
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|
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/// コールバック関数 |
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void wave_callback( IntPtr hwo, uint uMsg, uint dwInstance, uint dwParam1, uint dwParam2 ) { |
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#if DEBUG |
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Console.WriteLine( "WavePlay.wave_callback; uMsg=" + uMsg ); |
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#endif |
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if ( uMsg == windows.MM_WOM_DONE ) { |
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int index_done = 0; |
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WAVEHDR whdr = (WAVEHDR)Marshal.PtrToStructure( new IntPtr( dwParam1 ), typeof( WAVEHDR ) ); |
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int dwuser = whdr.dwUser.ToInt32(); |
| 69 |
if ( dwuser >= _NUM_BUF ) { |
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index_done = dwuser - _NUM_BUF; |
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} else { |
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index_done = dwuser; |
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} |
| 74 |
#if DEBUG |
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bocoree.debug.push_log( "dwuser=" + dwuser ); |
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bocoree.debug.push_log( "index_done=" + index_done ); |
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#endif |
| 78 |
s_done[index_done] = true; |
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if ( s_last_buffer == index_done ) { |
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s_playing = false; |
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} |
| 82 |
if ( dwuser >= _NUM_BUF ) { |
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s_wave_header[index_done].dwUser = new IntPtr( index_done ); |
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} |
| 85 |
#if DEBUG |
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bocoree.debug.push_log( "whdr.dwUser=" + whdr.dwUser.ToInt32() ); |
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bocoree.debug.push_log( "dwParam1=0x" + Convert.ToString( dwParam1, 16 ) + "; dwParam2=0x" + Convert.ToString( dwParam2, 16 ) ); |
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#endif |
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} |
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} |
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|
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void append_cor( float** a_data, uint length, double amp_left, double amp_right, bool is_last_mode ) { |
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#if DEBUG |
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|
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bocoree.debug.push_log( "append_cor *************************************************************" ); |
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bocoree.debug.push_log( " length=" + length ); |
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bocoree.debug.push_log( " s_hwave_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
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#endif |
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s_playing = true; |
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int jmax = (int)length; |
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int remain = 0; |
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IntPtr ptr_data = IntPtr.Zero; |
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IntPtr ptr_data0 = IntPtr.Zero; |
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IntPtr ptr_data1 = IntPtr.Zero; |
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ptr_data = Marshal.AllocHGlobal( sizeof( float* ) * 2 ); |
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float** data = (float**)ptr_data.ToPointer();// new float*[2]; |
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bool cleaning_required = false; |
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if ( s_error_samples > 0 ) { |
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if ( s_error_samples >= length ) { |
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s_error_samples -= (int)length; |
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return; |
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} |
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cleaning_required = true; |
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int actual_length = (int)length - s_error_samples; |
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#if DEBUG |
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bocoree.debug.push_log( " actual_length=" + actual_length ); |
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#endif |
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ptr_data0 = Marshal.AllocHGlobal( sizeof( float ) * actual_length ); |
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ptr_data1 = Marshal.AllocHGlobal( sizeof( float ) * actual_length ); |
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data[0] = (float*)ptr_data0.ToPointer(); |
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data[1] = (float*)ptr_data1.ToPointer(); |
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for ( int i = 0; i < actual_length; i++ ) { |
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data[0][i] = a_data[0][i + s_error_samples]; |
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data[1][i] = a_data[1][i + s_error_samples]; |
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} |
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s_error_samples = 0; |
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length = (uint)actual_length; |
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jmax = (int)length; |
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} else { |
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data = a_data; |
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} |
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|
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if ( length + s_buffer_loc >= s_block_size ) { |
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jmax = s_block_size - s_buffer_loc; |
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remain = (int)length - (int)jmax; |
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} |
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float aright = (float)amp_right; |
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float aleft = (float)amp_left; |
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|
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for ( int j = 0; j < jmax; j++ ) { |
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s_wave_buffer_l[j + s_buffer_loc] = data[1][j]; |
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s_wave_buffer_r[j + s_buffer_loc] = data[0][j]; |
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} |
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s_buffer_loc += jmax; |
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|
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if ( s_buffer_loc >= s_block_size ) { |
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// バッファー充填完了．バッファーを転送し、waveOutWriteが書き込めるタイミングまで待機 |
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#if DEBUG |
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bocoree.debug.push_log( "append_cor; waiting(1) " + s_current_buffer + "..." ); |
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#endif |
| 151 |
while ( true ) { |
| 152 |
if ( s_abort_required ) { |
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s_abort_required = false; |
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goto clean_and_exit; |
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} |
| 156 |
if ( s_done[s_current_buffer] ) { |
| 157 |
break; |
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} |
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} |
| 160 |
#if DEBUG |
| 161 |
bocoree.debug.push_log( "append_cor; ...exit" ); |
| 162 |
#endif |
| 163 |
|
| 164 |
s_processed_count++; |
| 165 |
mix( (int)s_processed_count, aleft, aright ); |
| 166 |
|
| 167 |
if ( s_processed_count == _NUM_BUF ) { |
| 168 |
s_done[0] = false; |
| 169 |
#if DEBUG |
| 170 |
bocoree.debug.push_log( "calling waveOutWrite...; s_hawve_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
| 171 |
#endif |
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uint ret = windows.waveOutWrite( s_hwave_out, ref s_wave_header[0], (uint)sizeof( WAVEHDR ) ); |
| 173 |
#if DEBUG |
| 174 |
bocoree.debug.push_log( "...done; ret=" + ret ); |
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#endif |
| 176 |
#if DEBUG |
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bocoree.debug.push_log( "(s_first_buffer_wirtten_callback==null)=" + (s_first_buffer_written_callback == null) ); |
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#endif |
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if ( s_first_buffer_written_callback != null ) { |
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#if DEBUG |
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bocoree.debug.push_log( "append_cor; calling s_first_buffer_written_callback" ); |
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#endif |
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s_first_buffer_written_callback(); |
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} |
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for ( int buffer_index = 1; buffer_index < _NUM_BUF; buffer_index++ ) { |
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s_done[buffer_index] = false; |
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#if DEBUG |
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bocoree.debug.push_log( "calling waveOutWrite...; s_hawve_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
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#endif |
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uint ret2 = windows.waveOutWrite( s_hwave_out, ref s_wave_header[buffer_index], (uint)sizeof( WAVEHDR ) ); |
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#if DEBUG |
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bocoree.debug.push_log( "...done; ret2=" + ret2 ); |
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#endif |
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} |
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s_current_buffer = _NUM_BUF - 1; |
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} else if ( s_processed_count > _NUM_BUF ) { |
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s_done[s_current_buffer] = false; |
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#if DEBUG |
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bocoree.debug.push_log( "calling waveOutWrite...; s_hawve_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
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#endif |
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uint ret3 = windows.waveOutWrite( s_hwave_out, ref s_wave_header[s_current_buffer], (uint)sizeof( WAVEHDR ) ); |
| 202 |
#if DEBUG |
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bocoree.debug.push_log( "...done; ret3=" + ret3 ); |
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#endif |
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} |
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s_current_buffer++; |
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if ( s_current_buffer >= _NUM_BUF ) { |
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s_current_buffer = 0; |
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} |
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|
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s_buffer_loc = 0; |
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} |
| 213 |
|
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if ( remain > 0 ) { |
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for ( int j = jmax; j < length; j++ ) { |
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s_wave_buffer_l[j - jmax] = data[1][j]; |
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s_wave_buffer_r[j - jmax] = data[0][j]; |
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} |
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if ( is_last_mode ) { |
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for ( int j = (int)length - jmax; j < s_block_size; j++ ) { |
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s_wave_buffer_l[j] = 0.0f; |
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s_wave_buffer_r[j] = 0.0f; |
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} |
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} |
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s_buffer_loc = remain; |
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} |
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|
| 228 |
if ( is_last_mode ) { |
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if ( s_processed_count < _NUM_BUF ) { |
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// _NUM_BUFブロック分のデータを未だ全て受信していない場合。バッファが未だひとつも書き込まれていないので |
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// 0番のブロックから順に書き込む |
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s_processed_count++; |
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mix( (int)s_processed_count, aleft, aright ); |
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s_done[0] = false; |
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#if DEBUG |
| 236 |
bocoree.debug.push_log( "calling waveOutWrite...; s_hawve_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
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#endif |
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uint ret35 = windows.waveOutWrite( s_hwave_out, ref s_wave_header[0], (uint)sizeof( WAVEHDR ) ); |
| 239 |
#if DEBUG |
| 240 |
bocoree.debug.push_log( "...done; ret35=" + ret35 ); |
| 241 |
bocoree.debug.push_log( "(s_first_buffer_written_callback==null)=" + (s_first_buffer_written_callback == null) ); |
| 242 |
#endif |
| 243 |
if ( s_first_buffer_written_callback != null ) { |
| 244 |
#if DEBUG |
| 245 |
bocoree.debug.push_log( "append_cor; calling s_first_buffer_written_callback" ); |
| 246 |
#endif |
| 247 |
s_first_buffer_written_callback(); |
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} |
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for ( int i = 1; i < _NUM_BUF - 1; i++ ) { |
| 250 |
s_processed_count++; |
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mix( (int)s_processed_count, aleft, aright ); |
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s_done[i] = false; |
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#if DEBUG |
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bocoree.debug.push_log( "calling waveOutWrite...; s_hawve_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
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#endif |
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uint ret36 = windows.waveOutWrite( s_hwave_out, ref s_wave_header[i], (uint)sizeof( WAVEHDR ) ); |
| 257 |
#if DEBUG |
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bocoree.debug.push_log( "...done; ret36=" + ret36 ); |
| 259 |
#endif |
| 260 |
} |
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} |
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ulong zero = MAKELONG( 0, 0 ); |
| 263 |
for ( int j = s_buffer_loc; j < s_block_size; j++ ) { |
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s_wave_buffer_l[j] = 0.0f; |
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s_wave_buffer_r[j] = 0.0f; |
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} |
| 267 |
#if DEBUG |
| 268 |
bocoree.debug.push_log( "append_cor; waiting(3) " + s_current_buffer + "..." ); |
| 269 |
#endif |
| 270 |
while ( !s_done[s_current_buffer] ) { |
| 271 |
if ( s_abort_required ) { |
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s_abort_required = false; |
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goto clean_and_exit; |
| 274 |
} |
| 275 |
} |
| 276 |
#if DEBUG |
| 277 |
bocoree.debug.push_log( "append_cor; ...exit" ); |
| 278 |
#endif |
| 279 |
s_processed_count++; |
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mix( (int)s_processed_count, aleft, aright ); |
| 281 |
s_done[s_current_buffer] = false; |
| 282 |
#if DEBUG |
| 283 |
bocoree.debug.push_log( "calling waveOutWrite...; s_hawve_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
| 284 |
#endif |
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uint ret4 = windows.waveOutWrite( s_hwave_out, ref s_wave_header[s_current_buffer], (uint)sizeof( WAVEHDR ) ); |
| 286 |
#if DEBUG |
| 287 |
bocoree.debug.push_log( "...done; ret4=" + ret4 ); |
| 288 |
#endif |
| 289 |
} |
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clean_and_exit: |
| 291 |
if ( is_last_mode ) { |
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s_last_buffer = s_current_buffer; |
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} |
| 294 |
if ( cleaning_required ) { |
| 295 |
Marshal.FreeHGlobal( ptr_data0 ); //delete [] data[0]; |
| 296 |
Marshal.FreeHGlobal( ptr_data1 ); //delete [] data[1]; |
| 297 |
Marshal.FreeHGlobal( ptr_data ); //delete [] data; |
| 298 |
} |
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} |
| 300 |
|
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void mix( int processed_count, float amp_left, float amp_right ) { |
| 302 |
int current_buffer = (processed_count - 1) % _NUM_BUF; |
| 303 |
for ( int k = 0; k < s_num_wave_reader; k++ ) { |
| 304 |
s_wave_reader[k].Read( s_block_size * (processed_count - 1) + (int)s_wave_read_offset_samples, |
| 305 |
s_block_size, |
| 306 |
out s_ptr_another_wave_l[k], |
| 307 |
out s_ptr_another_wave_r[k] ); |
| 308 |
} |
| 309 |
for ( int i = 0; i < s_block_size; i++ ) { |
| 310 |
float l = s_wave_buffer_l[i] * amp_left; |
| 311 |
float r = s_wave_buffer_r[i] * amp_right; |
| 312 |
for ( int k = 0; k < s_num_wave_reader; k++ ) { |
| 313 |
l += s_another_wave_l[k][i]; |
| 314 |
r += s_another_wave_r[k][i]; |
| 315 |
} |
| 316 |
s_wave[current_buffer][i] = MAKELONG( (ushort)(r * 32768.0f), (ushort)(l * 32768.0f) ); |
| 317 |
} |
| 318 |
} |
| 319 |
|
| 320 |
string util_get_errmsg( uint msg ) { |
| 321 |
//IntPtr ptr_err = Marshal.AllocHGlobal( sizeof( byte ) * 260 ); |
| 322 |
//byte* err = (byte*)ptr_err.ToPointer(); |
| 323 |
//System.Text.StringBuilder sb = new System.Text.StringBuilder( 260 ); |
| 324 |
string ret = ""; |
| 325 |
windows.mciGetErrorStringA( msg, ret, 260 ); |
| 326 |
/*int len = 260; |
| 327 |
for ( int i = 1; i < 260; i++ ) { |
| 328 |
if ( err[i] == '\0' ) { |
| 329 |
len = i - 1; |
| 330 |
break; |
| 331 |
} |
| 332 |
}*/ |
| 333 |
//string ret = new string( err ); |
| 334 |
//string ret = sb.ToString(); |
| 335 |
//Marshal.FreeHGlobal( ptr_err ); |
| 336 |
return ret; |
| 337 |
} |
| 338 |
|
| 339 |
private WavePlay() { |
| 340 |
} |
| 341 |
|
| 342 |
/// 初期化関数 |
| 343 |
public WavePlay( int block_size, int sample_rate ) { |
| 344 |
#if DEBUG |
| 345 |
Console.WriteLine( "waveplay..ctor" ); |
| 346 |
#endif |
| 347 |
s_block_size = block_size; |
| 348 |
s_sample_rate = sample_rate; |
| 349 |
|
| 350 |
//s_ptr_wave_formatx = Marshal.AllocHGlobal( sizeof( WAVEFORMATEX ) ); |
| 351 |
s_wave_formatx = new WAVEFORMATEX(); |
| 352 |
//Marshal.PtrToStructure( s_ptr_wave_formatx, s_wave_formatx ); |
| 353 |
s_wave_formatx.cbSize = (ushort)sizeof( WAVEFORMATEX ); |
| 354 |
#if DEBUG |
| 355 |
Console.WriteLine( " s_wave_fomratx.cbSize=" + s_wave_formatx.cbSize ); |
| 356 |
Console.WriteLine( " sizeof( WAVEHDR )=" + sizeof( WAVEHDR ) ); |
| 357 |
#endif |
| 358 |
s_wave_formatx.wFormatTag = windows.WAVE_FORMAT_PCM; |
| 359 |
s_wave_formatx.nChannels = 2; |
| 360 |
s_wave_formatx.wBitsPerSample = 16; |
| 361 |
s_wave_formatx.nBlockAlign = (ushort)(s_wave_formatx.nChannels * s_wave_formatx.wBitsPerSample / 8); |
| 362 |
s_wave_formatx.nSamplesPerSec = (uint)s_sample_rate; |
| 363 |
s_wave_formatx.nAvgBytesPerSec = s_wave_formatx.nSamplesPerSec * s_wave_formatx.nBlockAlign; |
| 364 |
|
| 365 |
s_wave_callback = new delegateWaveOutProc( wave_callback ); |
| 366 |
s_hwave_out = IntPtr.Zero; |
| 367 |
Console.WriteLine( " calling waveOutOpen..." ); |
| 368 |
uint ret = windows.waveOutOpen( ref s_hwave_out, |
| 369 |
windows.WAVE_MAPPER, |
| 370 |
ref s_wave_formatx, |
| 371 |
s_wave_callback, |
| 372 |
IntPtr.Zero, |
| 373 |
(uint)windows.CALLBACK_FUNCTION ); |
| 374 |
Console.WriteLine( " ...done; ret=" + ret ); |
| 375 |
#if DEBUG |
| 376 |
bocoree.debug.push_log( " s_hwave_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
| 377 |
#endif |
| 378 |
|
| 379 |
for ( int k = 0; k < _NUM_BUF; k++ ) { |
| 380 |
s_ptr_wave[k] = Marshal.AllocHGlobal( sizeof( uint ) * s_block_size ); |
| 381 |
s_wave[k] = (uint*)s_ptr_wave[k];// = (ulong*)calloc( sizeof( ulong ), s_block_size ); |
| 382 |
s_ptr_wave_header[k] = Marshal.AllocHGlobal( sizeof( WAVEHDR ) ); |
| 383 |
s_wave_header[k] = (WAVEHDR)Marshal.PtrToStructure( s_ptr_wave_header[k], typeof( WAVEHDR ) ); |
| 384 |
s_wave_header[k].lpData = s_ptr_wave[k]; |
| 385 |
s_wave_header[k].dwBufferLength = (uint)(sizeof( uint ) * s_block_size); |
| 386 |
s_wave_header[k].dwFlags = windows.WHDR_BEGINLOOP | windows.WHDR_ENDLOOP; |
| 387 |
s_wave_header[k].dwLoops = 1; |
| 388 |
|
| 389 |
#if DEBUG |
| 390 |
Console.WriteLine( "calling waveOutPrepareHeader..." ); |
| 391 |
#endif |
| 392 |
uint ret2 = windows.waveOutPrepareHeader( s_hwave_out, ref s_wave_header[k], (uint)sizeof( WAVEHDR ) ); |
| 393 |
#if DEBUG |
| 394 |
Console.WriteLine( "...done; ret2=" + ret2 ); |
| 395 |
#endif |
| 396 |
s_wave_header[k].dwUser = new IntPtr( k ); |
| 397 |
} |
| 398 |
#if DEBUG |
| 399 |
bocoree.debug.push_log( " exit waveplay..ctor; s_hwave_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
| 400 |
#endif |
| 401 |
} |
| 402 |
|
| 403 |
/// 波形データをバッファに追加する。バッファが再生中などの理由で即座に書き込めない場合、バッファが書き込み可能となるまで待機させられる |
| 404 |
public void append( float** data, uint length, double amp_left, double amp_right ) { |
| 405 |
append_cor( data, length, amp_left, amp_right, false ); |
| 406 |
} |
| 407 |
|
| 408 |
public void flush_and_exit( double amp_left, double amp_right ) { |
| 409 |
append_cor( (float**)0, 0, amp_left, amp_right, true ); |
| 410 |
} |
| 411 |
|
| 412 |
/// 再生中断を要求する |
| 413 |
public void abort() { |
| 414 |
s_abort_required = true; |
| 415 |
reset(); |
| 416 |
for ( int k = 0; k < _NUM_BUF; k++ ) { |
| 417 |
if ( s_ptr_wave[k] != IntPtr.Zero ) { |
| 418 |
for ( int i = 0; i < s_block_size; i++ ) { |
| 419 |
s_wave[k][i] = 0; |
| 420 |
} |
| 421 |
//memset( s_wave[k], 0, s_block_size * sizeof( ulong ) ); |
| 422 |
} |
| 423 |
} |
| 424 |
s_buffer_loc = 0; |
| 425 |
s_current_buffer = 0; |
| 426 |
s_processed_count = 0; |
| 427 |
} |
| 428 |
|
| 429 |
/// 現在の再生位置を取得する。再生中でない場合負の値となる。 |
| 430 |
public float get_play_time() { |
| 431 |
#if DEBUG |
| 432 |
bocoree.debug.push_log( "WavePlay.get_play_time" ); |
| 433 |
#endif |
| 434 |
if ( s_playing ) { |
| 435 |
MMTIME mmt = new MMTIME(); |
| 436 |
mmt.cb = (uint)sizeof( MMTIME ); |
| 437 |
mmt.wType = windows.TIME_MS; |
| 438 |
uint ret = windows.waveOutGetPosition( s_hwave_out, ref mmt, (uint)sizeof( MMTIME ) ); |
| 439 |
#if DEBUG |
| 440 |
bocoree.debug.push_log( " ret=" + ret ); |
| 441 |
#endif |
| 442 |
float ms = 0.0f; |
| 443 |
switch ( mmt.wType ) { |
| 444 |
case windows.TIME_MS: |
| 445 |
return mmt.ms * 0.001f; |
| 446 |
case windows.TIME_SAMPLES: |
| 447 |
return (float)mmt.sample / (float)s_wave_formatx.nSamplesPerSec; |
| 448 |
case windows.TIME_BYTES: |
| 449 |
return (float)mmt.cb / (float)s_wave_formatx.nAvgBytesPerSec; |
| 450 |
default: |
| 451 |
return -1.0f; |
| 452 |
} |
| 453 |
} else { |
| 454 |
return -1.0f; |
| 455 |
} |
| 456 |
} |
| 457 |
|
| 458 |
/// リセットする。abort関数でも呼び出される。 |
| 459 |
public void reset() { |
| 460 |
s_playing = false; |
| 461 |
if ( s_hwave_out.ToInt32() != 0 ) { |
| 462 |
for ( int k = 0; k < _NUM_BUF; k++ ) { |
| 463 |
s_wave_header[k].dwUser = new IntPtr( _NUM_BUF + k ); |
| 464 |
} |
| 465 |
windows.waveOutReset( s_hwave_out ); |
| 466 |
uint zero = MAKELONG( 0, 0 ); |
| 467 |
for ( int k = 0; k < _NUM_BUF; k++ ) { |
| 468 |
for ( int i = 0; i < s_block_size; i++ ) { |
| 469 |
s_wave[k][i] = zero; |
| 470 |
} |
| 471 |
} |
| 472 |
} |
| 473 |
for ( int i = 0; i < s_num_wave_reader; i++ ) { |
| 474 |
s_wave_reader[i].Close(); |
| 475 |
} |
| 476 |
} |
| 477 |
|
| 478 |
/// 再生のための準備を行う。この関数を呼び出した後は、バッファが再生開始されるまでget_play_timeの戻り値は0となる（負値にならない）。 |
| 479 |
/// 戻り値は、filesに指定されたファイルの内、最も再生時間の長いwaveファイルの、合計サンプル数 |
| 480 |
public int on_your_mark( string[] files, long wave_read_offset_samples ) { |
| 481 |
#if DEBUG |
| 482 |
bocoree.debug.push_log( "on_your_mark; s_hwave_out=0x" + Convert.ToString( s_hwave_out.ToInt32(), 16 ) ); |
| 483 |
#endif |
| 484 |
int num_files = files.Length; |
| 485 |
reset(); |
| 486 |
s_wave_read_offset_samples = wave_read_offset_samples; |
| 487 |
for ( int k = 0; k < _NUM_BUF; k++ ) { |
| 488 |
s_wave_header[k].dwUser = new IntPtr( k ); |
| 489 |
s_done[k] = true; |
| 490 |
} |
| 491 |
s_abort_required = false; |
| 492 |
s_buffer_loc = 0; |
| 493 |
s_current_buffer = 0; |
| 494 |
s_processed_count = 0; |
| 495 |
s_playing = true; |
| 496 |
s_last_buffer = -1; |
| 497 |
|
| 498 |
if ( (int)s_ptr_wave_buffer_l.ToPointer() == 0 ) { |
| 499 |
s_ptr_wave_buffer_l = Marshal.AllocHGlobal( sizeof( float ) * s_block_size );// s_wave_buffer_l = new float[s_block_size]; |
| 500 |
s_wave_buffer_l = (float*)s_ptr_wave_buffer_l.ToPointer(); |
| 501 |
} |
| 502 |
if ( (int)s_ptr_wave_buffer_r.ToPointer() == 0 ) { |
| 503 |
s_ptr_wave_buffer_r = Marshal.AllocHGlobal( sizeof( float ) * s_block_size ); //s_wave_buffer_r = new float[s_block_size]; |
| 504 |
s_wave_buffer_r = (float*)s_ptr_wave_buffer_r.ToPointer(); |
| 505 |
} |
| 506 |
|
| 507 |
if ( s_wave_reader != null ) { |
| 508 |
for ( int i = 0; i < s_num_wave_reader; i++ ) { |
| 509 |
s_wave_reader[i].Close(); |
| 510 |
} |
| 511 |
//delete [] s_wave_reader; |
| 512 |
} |
| 513 |
s_wave_reader = new WaveReader[num_files]; |
| 514 |
|
| 515 |
if ( s_another_wave_l != null ) { |
| 516 |
for ( int i = 0; i < s_num_wave_reader; i++ ) { |
| 517 |
Marshal.FreeHGlobal( s_ptr_another_wave_l[i] );// delete [] s_another_wave_l[i]; |
| 518 |
} |
| 519 |
//delete [] s_another_wave_l; |
| 520 |
} |
| 521 |
if ( s_another_wave_r != null ) { |
| 522 |
for ( int i = 0; i < s_num_wave_reader; i++ ) { |
| 523 |
Marshal.FreeHGlobal( s_ptr_another_wave_r[i] ); //delete [] s_another_wave_r[i]; |
| 524 |
} |
| 525 |
//delete [] s_another_wave_r; |
| 526 |
} |
| 527 |
s_another_wave_l = new float*[num_files]; |
| 528 |
s_another_wave_r = new float*[num_files]; |
| 529 |
int max_samples = 0; |
| 530 |
for ( int i = 0; i < num_files; i++ ) { |
| 531 |
// waveファイルヘッダを読込む |
| 532 |
/*int len = files[i].Length; |
| 533 |
wchar_t *name = new wchar_t[len + 1]; |
| 534 |
array<wchar_t> ^buf = files[i]->ToCharArray(); |
| 535 |
for( int k = 0; k < len; k++ ){ |
| 536 |
name[k] = buf[k]; |
| 537 |
} |
| 538 |
name[len] = '\0';*/ |
| 539 |
s_wave_reader[i].Open( files[i] ); |
| 540 |
int samples = s_wave_reader[i].TotalSamples; |
| 541 |
if ( samples > max_samples ) { |
| 542 |
max_samples = samples; |
| 543 |
} |
| 544 |
//delete [] name; |
| 545 |
|
| 546 |
// バッファを用意 |
| 547 |
s_ptr_another_wave_l[i] = Marshal.AllocHGlobal( sizeof( float ) * s_block_size ); |
| 548 |
s_another_wave_l[i] = (float*)s_ptr_another_wave_l[i].ToPointer(); |
| 549 |
s_ptr_another_wave_r[i] = Marshal.AllocHGlobal( sizeof( float ) * s_block_size ); |
| 550 |
s_another_wave_r[i] = (float*)s_ptr_another_wave_r[i].ToPointer(); |
| 551 |
//s_another_wave_l[i] = new float[s_block_size]; |
| 552 |
//s_another_wave_r[i] = new float[s_block_size]; |
| 553 |
} |
| 554 |
s_num_wave_reader = num_files; |
| 555 |
return max_samples; |
| 556 |
} |
| 557 |
|
| 558 |
public void set_error_samples( int error_samples ) { |
| 559 |
s_error_samples = error_samples; |
| 560 |
} |
| 561 |
|
| 562 |
/// コールバック関数を設定する |
| 563 |
public void set_first_buffer_written_callback( FirstBufferWrittenCallback proc ) { |
| 564 |
s_first_buffer_written_callback = proc; |
| 565 |
} |
| 566 |
|
| 567 |
public void terminate() { |
| 568 |
if ( s_hwave_out.ToInt32() != 0 ) { |
| 569 |
windows.waveOutReset( s_hwave_out ); |
| 570 |
#if DEBUG |
| 571 |
bocoree.debug.push_log( "waveplay::terminate; waveOutReset" ); |
| 572 |
#endif |
| 573 |
for ( int k = 0; k < _NUM_BUF; k++ ) { |
| 574 |
windows.waveOutUnprepareHeader( s_hwave_out, ref s_wave_header[k], (uint)sizeof( WAVEHDR ) ); |
| 575 |
} |
| 576 |
windows.waveOutClose( s_hwave_out ); |
| 577 |
} |
| 578 |
for ( int i = 0; i < _NUM_BUF; i++ ) { |
| 579 |
if ( s_ptr_wave[i].ToInt32() != 0 ) { |
| 580 |
Marshal.FreeHGlobal( s_ptr_wave[i] ); //delete [] s_wave[i]; |
| 581 |
} |
| 582 |
} |
| 583 |
} |
| 584 |
|
| 585 |
/// 現在再生中かどうかを取得する |
| 586 |
public bool is_alive() { |
| 587 |
return s_playing; |
| 588 |
} |
| 589 |
|
| 590 |
/// ブロックサイズを変更します |
| 591 |
public bool change_block_size( int block_size ) { |
| 592 |
if ( s_playing ) { |
| 593 |
return false; |
| 594 |
} |
| 595 |
if ( block_size <= 0 ) { |
| 596 |
return false; |
| 597 |
} |
| 598 |
|
| 599 |
for ( int k = 0; k < _NUM_BUF; k++ ) { |
| 600 |
if ( s_ptr_wave[k].ToInt32() != 0 ) { |
| 601 |
Marshal.FreeHGlobal( s_ptr_wave[k] );// delete [] s_wave[k]; |
| 602 |
} |
| 603 |
s_ptr_wave[k] = Marshal.AllocHGlobal( sizeof( uint ) * block_size ); |
| 604 |
s_wave[k] = (uint*)s_ptr_wave[k].ToPointer();// calloc( sizeof( ulong ), block_size ); |
| 605 |
s_wave_header[k].lpData = s_ptr_wave[k]; |
| 606 |
s_wave_header[k].dwBufferLength = (uint)(sizeof( uint ) * block_size); |
| 607 |
} |
| 608 |
|
| 609 |
// s_wave_buffer_l, s_wave_buffer_rは、NULLならばon_your_markで初期化されるので、開放だけやっておけばOK |
| 610 |
if ( s_ptr_wave_buffer_l.ToInt32() != 0 ) { |
| 611 |
Marshal.FreeHGlobal( s_ptr_wave_buffer_l ); //delete [] s_wave_buffer_l; |
| 612 |
} |
| 613 |
if ( s_ptr_wave_buffer_r.ToInt32() != 0 ) { |
| 614 |
Marshal.FreeHGlobal( s_ptr_wave_buffer_r ); //delete[] s_wave_buffer_r; |
| 615 |
} |
| 616 |
// s_another_wave_l, s_another_wave_rは、on_your_markで全自動で初期化されるので特に操作の必要なし |
| 617 |
s_block_size = block_size; |
| 618 |
return true; |
| 619 |
} |
| 620 |
|
| 621 |
uint MAKELONG( ushort a, ushort b ) { |
| 622 |
return (uint)(a & 0xffff) | (uint)((b & 0xffff) << 16); |
| 623 |
} |
| 624 |
} |
| 625 |
|
| 626 |
} |
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