{"id":4134,"date":"2018-06-09T21:54:40","date_gmt":"2018-06-09T13:54:40","guid":{"rendered":"http:\/\/www.bookcard.net\/wordpress\/?p=4134"},"modified":"2018-06-10T00:28:30","modified_gmt":"2018-06-09T16:28:30","slug":"directsound3d","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/directsound3d\/","title":{"rendered":"DirectSound\u4e4b3D\u72fc\u568e"},"content":{"rendered":"
\"\"<\/a>
DirectSound\u4e4b3D\u72fc\u568e<\/figcaption><\/figure>\n

\u7d93\u591a\u65e5\u52aa\u529b\u7d42\u65bc\u53ef\u4ee5\u57283D\u7a7a\u9593\u4e2d\u6dfb\u52a0\u4e2d\u6dfb\u52a03D\u6548\u679c,\u6240\u5e36\u4f86\u6975\u5f37\u771f\u5be6\u611f\u6548\u679c\u6709\u6642\u6bd43D\u6e32\u67d3\u66f4\u597d.\u800c\u4e14x86\u548cx64\u5747\u6b63\u78ba\u904b\u884c.\u5728\u6f14\u793a\u7a0b\u5f0f\u4e2d.\u300e\u72fc\u568e\u300f\u653e\u7f6e\u65bc\u5c71\u5730\u4e2d\u5fc3.\u96a8\u8457\u6309\u65b9\u5411\u9375\u79fb\u52d5\u76f8\u6a5f\u8072\u97f3\u7522\u751f\u8b8a\u5316.\u55ae\u9019\u9ede\u5f88\u591a\u66f8\u672c\u4f8b\u7a0b\u5747\u4e0d\u6b63\u78ba. 3D\u72fc\u568e\u7a0b\u5f0f:\u4e0b\u8f09<\/a><\/p>\n

\u800cDirectSound\u5982\u4f55\u6a21\u64ec3D\u6548\u679c.3D\u5373\u6709xyz\u4e09\u8ef8\u7b1b\u5361\u723e\u5ea7\u6a19,\u4ee5\u6b64\u5b9a\u7fa9\u8072\u6e90\u548c\u807d\u8005\u4f4d\u7f6e\u3001\u901f\u5ea6\u3001\u65b9\u5411.\u8981\u6ce8\u610fZ\u8ef8\u662f\u6307\u5411\u5c4f\u5e55\u5167\u90e8.\u6240\u4ee53D\u6548\u679c\u9700\u55ae\u8072\u9053.<\/p>\n

typdef struct{<\/p>\n

IDirectSoundBuffer\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * buffer;\u00a0 \/\/ \u8f14\u52a9\u7de9\u5b58<\/p>\n

IDirectSound3DBuffer8\u00a0\u00a0\u00a0 * buffer3D;\/\/ 3D\u7de9\u5b58<\/p>\n

float x,y,z;\/\/ \u97f3\u6e903D\u4f4d\u7f6e<\/p>\n

PBYTE data;\/\/ \u97f3\u983b\u6578\u64da<\/p>\n

int size;\/\/ \u6240\u5360\u7a7a\u9593<\/p>\n

}SOUND3D;<\/p>\n

SOUND3D sound3D;<\/p>\n

\u800c\u4e00\u822c\u6211\u5730\u6709\u5de6\u53f3\u5169\u500b\u97f3\u7bb1,\u6700\u591a\u56db\u89d2\u56db\u500b\u97f3\u7bb1.\u8981\u6a21\u64ec3D\u611f\u77e5\u6548\u679c\u8981\u7d20\u5982\u4e0b:<\/p>\n

    \n
  1. \u97ff\u5ea6:\u7576\u8072\u6e90\u9010\u6f38\u9060\u96e2\u807d\u8005,\u8072\u6e90\u6703\u9010\u6f38\u8870\u6e1b<\/li>\n
  2. \u5169\u8033\u8072\u97ff\u5dee:\u82e5\u8072\u6e90\u4f4d\u65bc\u807d\u8005\u53f3\u5074,\u5247\u53f3\u8033\u807d\u5230\u8072\u97ff\u6bd4\u5de6\u8033\u97ff.<\/li>\n
  3. \u5169\u8033\u6642\u9593\u5dee:\u82e5\u8072\u6e90\u4f4d\u65bc\u807d\u8005\u53f3\u5074,\u5247\u53f3\u8033\u6bd4\u5de6\u8033\u65e9\u807d\u5230\u4e00\u6beb\u79d2.<\/li>\n
  4. \u5169\u8033\u671d\u5411:\u82e5\u8072\u6e90\u5728\u524d\u908a\u5247\u6bd4\u5f8c\u908a\u97ff<\/li>\n
  5. \u8072\u97f3\u6700\u5927\u8ddd\u96e2:\u5927\u65bc\u6b64\u8ddd\u96e2\u8072\u97f3\u4e0d\u518d\u8870\u6e1b.\u9ed8\u8a8d\u70baDS3D_DEFAULTMAXDISTANCE(109<\/sup> m)<\/li>\n
  6. \u8072\u97f3\u6700\u5c0f\u8ddd\u96e2:\u5927\u65bc\u6b64\u8ddd\u96e2\u8072\u97f3\u4e0d\u518d\u905e\u589e.\u9ed8\u8a8d\u70baDS3D_DEFAULTMINDISTANCE(1m)<\/li>\n
  7. \u9ed8\u8a8d\u6a21\u5f0f: DS3DMODE_NORMAL\u4f7f\u75283D\u5ea7\u6a19\u8a2d\u5b9a\u97f3\u6e90\u4f4d\u7f6e<\/li>\n
  8. \u982d\u90e8\u6a21\u5f0f: DS3DMODE_HEADRELATIVE.\u53ef\u4ee5\u8a2d\u5b9a\u97f3\u6e90\u4f4d\u7f6e,\u4f46\u76e3\u807d\u4f4d\u7f6e\u7e3d\u70ba(0,0,0)<\/li>\n
  9. \u7981\u75283D\u6a21\u5f0f:DS3DMODE_DISABLE \u7981\u75283D\u8072\u97f3<\/li>\n<\/ol>\n

    \u300eWAV\u6578\u64da\u8f09\u5165<\/a>\u300f\u5f8c\u4ea4\u8207DirectSound\u4ee3\u78bc\u5982\u4e0b:<\/p>\n

    1.\u5275\u5efa\u8072\u5361\u63a5\u53e3,NULL\u70ba\u8207\u9ed8\u8a8d\u8072\u5361\u93c8\u63a5<\/p>\n

    IDirectSound8 * direct_sound3D = NULL;\/\/ \u9ed8\u8a8d\u8072\u5361\u63a5\u53e3<\/p>\n

    DirectSoundCreate8(NULL,&direct_sound3D,NULL);<\/p>\n

    2.\u8a2d\u7f6e\u70ba\u512a\u5148\u7b49\u7d1a,\u5141\u8a31\u8a2d\u5b9a\u4e3b\u7de9\u5b58\u97f3\u983b\u6578\u64da\u683c\u5f0f\u4e26\u7372\u53d6IDirectSound3DListener8\u63a5\u53e3<\/p>\n

    direct_sound3D->SetCooperativeLevel(hWnd, DSSCL_PRIORITY);\/\/ \u512a\u5148\u7d1a\u5225<\/p>\n

    3.\u521d\u59cb\u5316Directsound\u4e3b\u7de9\u5b58,\u4e3b\u7de9\u5b58\u4ee3\u8868\u8072\u5361,\u4e26\u8a2d\u7f6e\u683c\u5f0f<\/p>\n

    DSBUFFERDESC buffer;\/\/ \u7de9\u5b58\u683c\u5f0f\u63cf\u8ff0<\/p>\n

    ZeroMemory(&buffer, sizeof(DSBUFFERDESC));\/\/ \u6e05\u96f6<\/p>\n

    buffer.dwSize = sizeof(DSBUFFERDESC);\/\/ \u6240\u5360\u7a7a\u9593<\/p>\n

    buffer.dwFlags = DSBCAPS_CTRL3D | DSBCAPS_PRIMARYBUFFER;\/\/3D\u7de9\u5b58\u4e26\u4f7f\u7528\u8072\u5361\u7de9\u5b58<\/p>\n

    4.\u5275\u5efa\u9ed8\u8a8d\u8072\u5361\u7de9\u5b58\u63a5\u53e3<\/p>\n

    IDirectSoundBuffer * DirectSound3D_Buffer = NULL;<\/p>\n

    direct_sound3D->CreateSoundBuffer(&buffer, &DirectSound3D_Buffer, NULL);<\/p>\n

    5.\u7372\u53d63D\u7a7a\u9593\u300e\u807d\u8005\u300f<\/p>\n

    IDirectSound3DListener8\u00a0 * DirectSound3D_Listener;\/\/ 3D\u807d\u8005<\/p>\n

    DirectSound3D_Buffer->QueryInterface(IID_IDirectSound3DListener, (VOID**)&DirectSound3D_Listener);<\/p>\n

    6.\u8a2d\u7f6e\u7de9\u5b58\u6578\u64da\u683c\u5f0f<\/p>\n

    WAVEFORMATEX format;\/\/\u7de9\u5b58\u683c\u5f0f\u63cf\u6558<\/p>\n

    memset(&format, 0, sizeof(WAVEFORMATEX));<\/p>\n

    format.cbSize = 0;\/\/\u7e3d\u662f0.<\/p>\n

    format.wFormatTag = WAVE_FORMAT_PCM;\u00a0 \/\/\u8108\u885d\u7de8\u78bc\u683c\u5f0f<\/p>\n

    format.nChannels = 1;\u00a0\u00a0 \/\/(\u8072\u9053\u6578\u76ee)1\u70ba\u55ae\u8072\u9053\u56de\u653e<\/p>\n

    format.nSamplesPerSec = 11025;\/\/(\u6bcf\u79d2\u7684\u6a23\u672c)\u7e3d\u662f\u9019\u500b\u901f\u5ea6<\/p>\n

    format.wBitsPerSample = 8;\/\/\u8072\u97f3\u70ba8Bit<\/p>\n

    format.nBlockAlign = 1;\/\/\u5b57\u7bc0\u5c0d\u9f4a,\u55ae\u8072\u90538bit\u53601byte.\u96d9\u8072\u905316bit\u53604yte.<\/p>\n

    format.nAvgBytesPerSec = format.nSamplesPerSec * format.nBlockAlign; \/\/\u6bcf\u79d2\u64ad\u653e\u5b57\u7bc0\u6578<\/p>\n

    DirectSound3D_Buffer->SetFormat(&format); \/\/\u8a2d\u7f6e\u4e3b\u7de9\u5b58\u97f3\u983b\u683c\u5f0f<\/p>\n

    7.\u73fe\u5728\u5efa\u7acb\u8f14\u52a9\u8072\u97f3\u7de9\u5b58<\/p>\n

    DSBUFFERDESC desc;\/\/ \u7de9\u5b58\u683c\u5f0f\u63cf\u6558<\/p>\n

    memset(&desc,0,sizeof(DSBUFFERDESC));<\/p>\n

    desc.dwSize = sizeof(DSBUFFERDESC);\/\/dsbd\u7684\u5927\u5c0f<\/p>\n

    desc.dwFlags = DSBCAPS_CTRL3D |\/\/ \u8acb\u6c423D BUFFER<\/p>\n

    DSBCAPS_CTRLVOLUME | \/\/ \u7de9\u5b58\u64c1\u6709\u97f3\u91cf\u63a7\u5236\u529f\u80fd<\/p>\n

    DSBCAPS_CTRLFREQUENCY | \/\/ \u7de9\u5b58\u64c1\u6709\u983b\u7387\u63a7\u5236\u529f\u80fd<\/p>\n

    DSBCAPS_GLOBALFOCUS |<\/p>\n

    DSBCAPS_CTRLPOSITIONNOTIFY |\u00a0 \/\/ 3D\u4f4d\u7f6e<\/p>\n

    DSBCAPS_GETCURRENTPOSITION2; \/\/ \u64ad\u653e\u4f4d\u7f6e<\/p>\n

    desc.dwBufferBytes = sound3D->size;\/\/\u8072\u97f3\u6578\u64da\u7684\u5927\u5c0f.<\/p>\n

    desc.guid3DAlgorithm = DS3DALG_DEFAULT;\/\/ \u4e3b\u7de9\u6c96\u5340\u5728 DSBCAPS_CTRL3D \u6a21\u5f0f\u4e0b\u53ef\u4ee5\u555f\u7528\u9019\u500b\u9078\u9805<\/p>\n

    desc.lpwfxFormat = &format;\/\/ \u7de9\u5b58\u6578\u64da\u683c\u5f0f<\/p>\n

    8.\u5275\u5efa\u8f14\u52a9\u8072\u97f3\u7de9\u885d\u5668<\/p>\n

    direct_sound3D->CreateSoundBuffer(&desc, &sound3D->buffer, NULL);<\/p>\n

    9.\u7372\u53d63D\u7a7a\u9593\u7de9\u5b58<\/p>\n

    sound3D->buffer->QueryInterface(IID_IDirectSound3DBuffer, (VOID**)&sound3D->buffer3D);<\/p>\n

    10.\u628a\u6578\u64da\u5beb\u5165\u8072\u97f3\u8f14\u52a9\u7de9\u5b58,\u8f14\u52a9(\u4e8c\u7d1a)\u8072\u97f3\u7de9\u5b58\u662f\u81ea\u5faa\u74b0<\/p>\n

    UCHAR\u00a0 audio_ptr_1 = NULL,<\/em>audio_ptr_2 = NULL; \/\/\u6307\u5411\u7de9\u5b58\u7b2c\u4e00\u8207\u7b2c\u4e8c\u90e8\u5206<\/p>\n

    DWORD\u00a0\u00a0 audio_len_1 = 0, audio_len_2 = 0;\u00a0 \/\/\u7b2c\u4e00\u8207\u7b2c\u4e8c\u7de9\u5b58\u9577\u5ea6<\/p>\n

    11.\u9396\u4f4f\u7a7a\u9593<\/p>\n

    sound3D->buffer->Lock(0,\/\/\u5beb\u5165\u6307\u91dd\u6307\u5411\u4f4d\u7f6e<\/p>\n

    sound3D->size,\/\/\u8981\u9396\u5b9a\u7a7a\u9593\u5927\u5c0f.<\/p>\n

    (void **)&audio_ptr_1,\/\/\u7b2c\u4e00\u500b\u90e8\u5206\u958b\u59cb\u5730\u5740.<\/p>\n

    &audio_len_1,\/\/\u7b2c\u4e00\u500b\u90e8\u5206\u9577\u5ea6<\/p>\n

    (void **)&audio_ptr_2,\/\/\u7b2c\u4e8c\u500b\u90e8\u5206\u958b\u59cb\u5730\u5740.<\/p>\n

    &audio_len_2,\/\/\u7b2c\u4e8c\u500b\u90e8\u5206\u9577\u5ea6<\/p>\n

    DSBLOCK_FROMWRITECURS );<\/p>\n

    11.\u8907\u88fd\u6578\u64da\u5230\u8072\u97f3\u7de9\u6c96\u5b58\u5132\u5668,\u62f7\u8c9d\u5230\u5713\u5f62\u7de9\u6c96\u5b58\u5132\u5668\u7684\u7b2c\u4e00\u6bb5\u4e2d<\/p>\n

    memcpy(audio_ptr_1, sound3D->data, audio_len_1);<\/p>\n

    12.\u62f7\u8c9d\u5230\u5713\u5f62\u7de9\u6c96\u5b58\u5132\u5668\u7684\u7b2c\u4e8c\u6bb5\u4e2d<\/p>\n

    memcpy(audio_ptr_2, (sound3D->data + audio_len_1), audio_len_2);<\/p>\n

    13.\u89e3\u9396<\/p>\n

    sound3D->buffer->Unlock(audio_ptr_1, audio_len_1,audio_ptr_2, audio_len_2);<\/p>\n

    14.\u8a2d\u7f6e\u97f3\u6e903D\u4f4d\u7f6e\u8207\u8ddd\u96e2<\/p>\n

    DS3DBUFFER\u00a0 param;<\/p>\n

    memset(&param, 0, sizeof(DS3DBUFFER));<\/p>\n

    param.dwSize = sizeof(DS3DBUFFER);<\/p>\n

    sound3D->buffer3D->GetAllParameters(&param);<\/p>\n

    param.flMaxDistance = sound3D->max;\/\/ \u8072\u97f3\u6700\u5927\u8ddd\u96e2 DS3D_DEFAULTMAXDISTANCE<\/p>\n

    param.flMinDistance = sound3D->min;\/\/ \u8072\u97f3\u6700\u5c0f\u8ddd\u96e2 DS3D_DEFAULTMINDISTANCE<\/p>\n

    param.vPosition.x = x; \/\/\u97f3\u6e903D\u4f4d\u7f6e<\/p>\n

    param.vPosition.y = y;<\/p>\n

    param.vPosition.z = -z;\/\/ Z\u8ef8\u53cd\u8f49<\/p>\n

    param.dwMode = DS3DMODE_NORMAL;\/\/ \u9ed8\u8a8d,\u4f7f\u75283D\u5ea7\u6a19\u8a2d\u5b9a\u97f3\u6e90\u4f4d\u7f6e\u548c<\/p>\n

    sound3D->buffer3D->SetAllParameters(&param, DS3D_IMMEDIATE);\/\/ \u7acb\u5373\u8a2d\u5b9a<\/p>\n

    15.\u6b63\u78ba\u8a2d\u7f6e\u97f3\u6e90\u56e0\u5b50\u82073D\u807d\u8005\u4f4d\u7f6e,\u95dc\u9375\u90e8\u5206\u662f\u4e0d\u8981\u8a2d\u7f6eDS3DMODE_HEADRELATIVE(\u982d\u90e8\u6a21\u5f0f)<\/p>\n

    DS3DLISTENER\u00a0 param;<\/p>\n

    memset(&param, 0, sizeof(DS3DLISTENER));<\/p>\n

    param.dwSize = sizeof(DS3DLISTENER);<\/p>\n

    DirectSound3D_Listener->GetAllParameters(&param);<\/p>\n

    param.flDopplerFactor = 0; \/\/\u591a\u8b5c\u52d2\u983b\u79fb,\u4e00\u822c\u8a2d\u70ba0<\/p>\n

    param.flRolloffFactor = 0.1f; \/\/ \u8870\u6e1b\u7387,\u6b64\u76f4\u8d8a\u5927\u8870\u6e1b\u8d8a\u5feb.\u4e00\u822c\u8a2d\u70ba0.1f~0.5f<\/p>\n

    param.vPosition.x = x; \/\/\u807d\u80053D\u4f4d\u7f6e<\/p>\n

    param.vPosition.y = y;<\/p>\n

    param.vPosition.z = -z;<\/p>\n

    DirectSound3D_Listener->SetAllParameters(&param, DS3D_IMMEDIATE);<\/p>\n

    16.\u5faa\u74b0\u64ad\u653e\u97f3\u983b\u6578\u64da<\/p>\n

    sound3D->buffer->Play(0,0,DSBPLAY_LOOPING);<\/p>\n

    17.\u55ae\u6b21\u64ad\u653e<\/p>\n

    sound3D->buffer->Play(0, 0, 0);<\/p>\n

    18.\u505c\u6b62\u97f3\u983b\u64ad\u653e<\/p>\n

    sound3D->buffer->Stop();<\/p>\n

    19.\u91cb\u653eDirectSound3D<\/p>\n

    sound3D->buffer3D->Release();\/\/ \u91cb\u653e3D\u7de9\u5b58<\/p>\n

    sound3D->buffer->Release();\/\/ \u91cb\u653e\u8f14\u52a9\u7de9\u5b58<\/p>\n

    DirectSound3D_Buffer->Release(); \/\/ \u91cb\u653e\u8072\u5361\u4e3b\u7de9\u5b58<\/p>\n

    direct_sound3D->Release();\/\/ \u91cb\u653e\u8072\u5361<\/p>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    \u7d93\u591a\u65e5\u52aa\u529b\u7d42\u65bc\u53ef\u4ee5\u57283D\u7a7a\u9593\u4e2d\u6dfb\u52a0\u4e2d\u6dfb\u52a03D\u6548\u679c,\u6240\u5e36\u4f86\u6975\u5f37\u771f\u5be6\u611f\u6548\u679c\u6709\u6642\u6bd43D\u6e32\u67d3\u66f4\u597d.\u800c\u4e14x86\u548cx64\u5747 … <\/p>\n

    \u7e7c\u7e8c\u95b1\u8b80 DirectSound\u4e4b3D\u72fc\u568e<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[50],"class_list":["post-4134","post","type-post","status-publish","format-standard","hentry","category-windows","tag-opengl","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/comments?post=4134"}],"version-history":[{"count":2,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4134\/revisions"}],"predecessor-version":[{"id":4141,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4134\/revisions\/4141"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=4134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=4134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=4134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}