Mercurial > sdl-ios-xcode

annotate src/audio/windx5/SDL_dx5audio.c @ 2049:5f6550e5184f

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Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 17 Oct 2006 09:15:21 +0000
parents 4ad1e863d100
children bbc89e09503f
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* Allow access to a raw mixing buffer */
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25
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26 #include "SDL_timer.h"
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27 #include "SDL_audio.h"
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28 #include "../SDL_audio_c.h"
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29 #include "SDL_dx5audio.h"
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30
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31 /* !!! FIXME: move this somewhere that other drivers can use it... */
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32 #if defined(_WIN32_WCE)
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33 #define WINDOWS_OS_NAME "Windows CE/PocketPC"
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34 #elif defined(WIN64)
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35 #define WINDOWS_OS_NAME "Win64"
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36 #else
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37 #define WINDOWS_OS_NAME "Win32"
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38 #endif
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39
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40 /* DirectX function pointers for audio */
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41 static HINSTANCE DSoundDLL = NULL;
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42 static HRESULT (WINAPI *DSoundCreate)(LPGUID,LPDIRECTSOUND*,LPUNKNOWN) = NULL;
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43
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44 static void
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45 DSOUND_Unload(void)
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46 {
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47 if (DSoundDLL != NULL) {
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48 FreeLibrary(DSoundDLL);
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49 }
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50
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51 DSoundCreate = NULL;
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52 DSoundDLL = NULL;
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53 }
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54
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55
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56 static int
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57 DSOUND_Load(void)
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58 {
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59 int loaded = 0;
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60
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61 DSOUND_Unload();
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62
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63 DSoundDLL = LoadLibrary(TEXT("DSOUND.DLL"));
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64 if (DSoundDLL == NULL) {
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65 SDL_SetError("DirectSound: failed to load DSOUND.DLL");
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66 } else {
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67 /* Now make sure we have DirectX 5 or better... */
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68 /* (DirectSoundCaptureCreate was added in DX5) */
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69 if (!GetProcAddress(DSoundDLL, TEXT("DirectSoundCaptureCreate"))) {
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70 SDL_SetError("DirectSound: System doesn't appear to have DX5.");
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71 } else {
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72 DSoundCreate = (void *) GetProcAddress(DSoundDLL,
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73 TEXT("DirectSoundCreate"));
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74 }
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75
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76 if (!DSoundCreate) {
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77 SDL_SetError("DirectSound: Failed to find DirectSoundCreate");
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78 } else {
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79 loaded = 1;
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80 }
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81 }
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82
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83 if (!loaded) {
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84 DSOUND_Unload();
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85 }
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86
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87 return loaded;
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88 }
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89
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90
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91 static void
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92 SetDSerror(const char *function, int code)
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93 {
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94 static const char *error;
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95 static char errbuf[1024];
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96
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97 errbuf[0] = 0;
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98 switch (code) {
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99 case E_NOINTERFACE:
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100 error = "Unsupported interface -- Is DirectX 5.0 or later installed?";
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101 break;
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102 case DSERR_ALLOCATED:
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103 error = "Audio device in use";
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104 break;
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105 case DSERR_BADFORMAT:
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106 error = "Unsupported audio format";
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107 break;
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108 case DSERR_BUFFERLOST:
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109 error = "Mixing buffer was lost";
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110 break;
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111 case DSERR_CONTROLUNAVAIL:
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112 error = "Control requested is not available";
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113 break;
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114 case DSERR_INVALIDCALL:
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115 error = "Invalid call for the current state";
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116 break;
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117 case DSERR_INVALIDPARAM:
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118 error = "Invalid parameter";
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119 break;
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120 case DSERR_NODRIVER:
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121 error = "No audio device found";
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122 break;
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123 case DSERR_OUTOFMEMORY:
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124 error = "Out of memory";
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125 break;
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126 case DSERR_PRIOLEVELNEEDED:
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127 error = "Caller doesn't have priority";
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128 break;
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129 case DSERR_UNSUPPORTED:
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130 error = "Function not supported";
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131 break;
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132 default:
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133 SDL_snprintf(errbuf, SDL_arraysize(errbuf),
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134 "%s: Unknown DirectSound error: 0x%x", function, code);
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135 break;
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136 }
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137 if (!errbuf[0]) {
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138 SDL_snprintf(errbuf, SDL_arraysize(errbuf), "%s: %s", function,
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diff changeset
139 error);
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140 }
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141 SDL_SetError("%s", errbuf);
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142 return;
0
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143 }
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144
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145 /* DirectSound needs to be associated with a window */
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diff changeset
146 static HWND mainwin = NULL;
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147 /* */
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148
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149 void
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150 DSOUND_SoundFocus(HWND hwnd)
0
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151 {
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152 /* !!! FIXME: probably broken with multi-window support in SDL 1.3 ... */
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153 mainwin = hwnd;
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154 }
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155
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156 static void
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157 DSOUND_ThreadInit(_THIS)
0
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158 {
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159 SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST);
0
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160 }
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161
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162 static void
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163 DSOUND_WaitDevice(_THIS)
0
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164 {
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165 DWORD status = 0;
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166 DWORD cursor = 0;
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167 DWORD junk = 0;
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168 HRESULT result = DS_OK;
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169
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170 /* Semi-busy wait, since we have no way of getting play notification
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171 on a primary mixing buffer located in hardware (DirectX 5.0)
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172 */
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173 result = IDirectSoundBuffer_GetCurrentPosition(this->hidden->mixbuf,
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174 &junk, &cursor);
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175 if (result != DS_OK) {
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176 if (result == DSERR_BUFFERLOST) {
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177 IDirectSoundBuffer_Restore(this->hidden->mixbuf);
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178 }
0
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179 #ifdef DEBUG_SOUND
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180 SetDSerror("DirectSound GetCurrentPosition", result);
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181 #endif
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182 return;
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183 }
0
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184
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185 while ((cursor / this->hidden->mixlen) == this->hidden->lastchunk) {
1895
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186 /* FIXME: find out how much time is left and sleep that long */
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187 SDL_Delay(1);
0
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188
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diff changeset
189 /* Try to restore a lost sound buffer */
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190 IDirectSoundBuffer_GetStatus(this->hidden->mixbuf, &status);
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191 if ((status & DSBSTATUS_BUFFERLOST)) {
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192 IDirectSoundBuffer_Restore(this->hidden->mixbuf);
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193 IDirectSoundBuffer_GetStatus(this->hidden->mixbuf, &status);
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194 if ((status & DSBSTATUS_BUFFERLOST)) {
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195 break;
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diff changeset
196 }
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197 }
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198 if (!(status & DSBSTATUS_PLAYING)) {
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diff changeset
199 result = IDirectSoundBuffer_Play(this->hidden->mixbuf, 0, 0,
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diff changeset
200 DSBPLAY_LOOPING);
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201 if (result == DS_OK) {
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202 continue;
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203 }
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204 #ifdef DEBUG_SOUND
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205 SetDSerror("DirectSound Play", result);
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206 #endif
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207 return;
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208 }
0
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209
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210 /* Find out where we are playing */
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diff changeset
211 result = IDirectSoundBuffer_GetCurrentPosition(this->hidden->mixbuf,
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212 &junk, &cursor);
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213 if (result != DS_OK) {
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214 SetDSerror("DirectSound GetCurrentPosition", result);
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diff changeset
215 return;
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diff changeset
216 }
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217 }
0
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diff changeset
218 }
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diff changeset
219
1895
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diff changeset
220 static void
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diff changeset
221 DSOUND_PlayDevice(_THIS)
0
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diff changeset
222 {
1895
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diff changeset
223 /* Unlock the buffer, allowing it to play */
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diff changeset
224 if (this->hidden->locked_buf) {
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diff changeset
225 IDirectSoundBuffer_Unlock(this->hidden->mixbuf,
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diff changeset
226 this->hidden->locked_buf,
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diff changeset
227 this->hidden->mixlen, NULL, 0);
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228 }
0
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229
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diff changeset
230 }
74212992fb08 Initial revision
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diff changeset
231
1895
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diff changeset
232 static Uint8 *
2049
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diff changeset
233 DSOUND_GetDeviceBuf(_THIS)
0
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diff changeset
234 {
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diff changeset
235 DWORD cursor = 0;
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diff changeset
236 DWORD junk = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
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diff changeset
237 HRESULT result = DS_OK;
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diff changeset
238 DWORD rawlen = 0;
0
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diff changeset
239
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diff changeset
240 /* Figure out which blocks to fill next */
2049
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diff changeset
241 this->hidden->locked_buf = NULL;
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diff changeset
242 result = IDirectSoundBuffer_GetCurrentPosition(this->hidden->mixbuf,
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diff changeset
243 &junk, &cursor);
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diff changeset
244 if (result == DSERR_BUFFERLOST) {
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diff changeset
245 IDirectSoundBuffer_Restore(this->hidden->mixbuf);
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diff changeset
246 result = IDirectSoundBuffer_GetCurrentPosition(this->hidden->mixbuf,
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diff changeset
247 &junk, &cursor);
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248 }
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249 if (result != DS_OK) {
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250 SetDSerror("DirectSound GetCurrentPosition", result);
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251 return (NULL);
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diff changeset
252 }
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diff changeset
253 cursor /= this->hidden->mixlen;
1877
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diff changeset
254 #ifdef DEBUG_SOUND
1895
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diff changeset
255 /* Detect audio dropouts */
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diff changeset
256 {
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diff changeset
257 DWORD spot = cursor;
2049
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diff changeset
258 if (spot < this->hidden->lastchunk) {
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parents: 2008
diff changeset
259 spot += this->hidden->num_buffers;
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260 }
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261 if (spot > this->hidden->lastchunk + 1) {
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262 fprintf(stderr, "Audio dropout, missed %d fragments\n",
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263 (spot - (this->hidden->lastchunk + 1)));
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264 }
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265 }
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266 #endif
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267 this->hidden->lastchunk = cursor;
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268 cursor = (cursor + 1) % this->hidden->num_buffers;
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269 cursor *= this->hidden->mixlen;
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270
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271 /* Lock the audio buffer */
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272 result = IDirectSoundBuffer_Lock(this->hidden->mixbuf, cursor,
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273 this->hidden->mixlen,
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274 (LPVOID *) &this->hidden->locked_buf,
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275 &rawlen, NULL, &junk, 0);
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276 if (result == DSERR_BUFFERLOST) {
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277 IDirectSoundBuffer_Restore(this->hidden->mixbuf);
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278 result = IDirectSoundBuffer_Lock(this->hidden->mixbuf, cursor,
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279 this->hidden->mixlen,
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280 (LPVOID *) &this->hidden->locked_buf,
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281 &rawlen, NULL, &junk, 0);
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282 }
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283 if (result != DS_OK) {
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284 SetDSerror("DirectSound Lock", result);
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285 return (NULL);
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286 }
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287 return (this->hidden->locked_buf);
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288 }
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289
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290 static void
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291 DSOUND_WaitDone(_THIS)
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292 {
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293 Uint8 *stream = DSOUND_GetDeviceBuf(this);
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294
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295 /* Wait for the playing chunk to finish */
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296 if (stream != NULL) {
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297 SDL_memset(stream, this->spec.silence, this->hidden->mixlen);
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298 DSOUND_PlayDevice(this);
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299 }
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300 DSOUND_WaitDevice(this);
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301
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diff changeset
302 /* Stop the looping sound buffer */
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303 IDirectSoundBuffer_Stop(this->hidden->mixbuf);
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304 }
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305
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diff changeset
306 static void
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307 DSOUND_CloseDevice(_THIS)
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308 {
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309 if (this->hidden != NULL) {
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310 if (this->hidden->sound != NULL) {
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311 if (this->hidden->mixbuf != NULL) {
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312 /* Clean up the audio buffer */
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313 IDirectSoundBuffer_Release(this->hidden->mixbuf);
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314 this->hidden->mixbuf = NULL;
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315 }
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diff changeset
316 IDirectSound_Release(this->hidden->sound);
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317 this->hidden->sound = NULL;
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318 }
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319
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320 SDL_free(this->hidden);
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321 this->hidden = NULL;
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322 }
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323 }
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324
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325 /* This function tries to create a secondary audio buffer, and returns the
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326 number of audio chunks available in the created buffer.
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327 */
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328 static int
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329 CreateSecondary(_THIS, HWND focus, WAVEFORMATEX *wavefmt)
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330 {
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331 LPDIRECTSOUND sndObj = this->hidden->sound;
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332 LPDIRECTSOUNDBUFFER *sndbuf = this->hidden->mixbuf;
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333 Uint32 chunksize = this->spec.size;
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334 const int numchunks = 8;
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335 HRESULT result = DS_OK;
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336 DSBUFFERDESC format;
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337 LPVOID pvAudioPtr1, pvAudioPtr2;
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338 DWORD dwAudioBytes1, dwAudioBytes2;
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339
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340 /* Try to set primary mixing privileges */
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341 if (focus) {
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342 result = IDirectSound_SetCooperativeLevel(sndObj,
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343 focus, DSSCL_PRIORITY);
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344 } else {
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345 result = IDirectSound_SetCooperativeLevel(sndObj,
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346 GetDesktopWindow(),
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347 DSSCL_NORMAL);
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348 }
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349 if (result != DS_OK) {
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350 SetDSerror("DirectSound SetCooperativeLevel", result);
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351 return (-1);
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352 }
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353
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354 /* Try to create the secondary buffer */
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355 SDL_memset(&format, 0, sizeof(format));
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356 format.dwSize = sizeof(format);
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357 format.dwFlags = DSBCAPS_GETCURRENTPOSITION2;
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358 if (!focus) {
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359 format.dwFlags |= DSBCAPS_GLOBALFOCUS;
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360 } else {
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361 format.dwFlags |= DSBCAPS_STICKYFOCUS;
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362 }
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363 format.dwBufferBytes = numchunks * chunksize;
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364 if ((format.dwBufferBytes < DSBSIZE_MIN) ||
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365 (format.dwBufferBytes > DSBSIZE_MAX)) {
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366 SDL_SetError("Sound buffer size must be between %d and %d",
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367 DSBSIZE_MIN / numchunks, DSBSIZE_MAX / numchunks);
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368 return (-1);
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369 }
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370 format.dwReserved = 0;
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371 format.lpwfxFormat = wavefmt;
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372 result = IDirectSound_CreateSoundBuffer(sndObj, &format, sndbuf, NULL);
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373 if (result != DS_OK) {
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374 SetDSerror("DirectSound CreateSoundBuffer", result);
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375 return (-1);
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diff changeset
376 }
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377 IDirectSoundBuffer_SetFormat(*sndbuf, wavefmt);
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378
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379 /* Silence the initial audio buffer */
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380 result = IDirectSoundBuffer_Lock(*sndbuf, 0, format.dwBufferBytes,
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381 (LPVOID *) & pvAudioPtr1, &dwAudioBytes1,
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382 (LPVOID *) & pvAudioPtr2, &dwAudioBytes2,
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diff changeset
383 DSBLOCK_ENTIREBUFFER);
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parents: 1877
diff changeset
384 if (result == DS_OK) {
2049
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Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
385 SDL_memset(pvAudioPtr1, this->spec.silence, dwAudioBytes1);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1877
diff changeset
386 IDirectSoundBuffer_Unlock(*sndbuf,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1877
diff changeset
387 (LPVOID) pvAudioPtr1, dwAudioBytes1,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
388 (LPVOID) pvAudioPtr2, dwAudioBytes2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
389 }
118
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
390
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
391 /* We're ready to go */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1877
diff changeset
392 return (numchunks);
0
74212992fb08 Initial revision
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parents:
diff changeset
393 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
395 static int
2049
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Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
396 DSOUND_OpenDevice(_THIS, const char *devname, int iscapture)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
398 HRESULT result;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
399 WAVEFORMATEX waveformat;
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
400 int valid_format = 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
401 SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
403 /* !!! FIXME: handle devname */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
404 /* !!! FIXME: handle iscapture */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
405
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
406 /* Initialize all variables that we clean on shutdown */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
407 this->hidden = (struct SDL_PrivateAudioData *)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
408 SDL_malloc((sizeof *this->hidden));
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
409 if (this->hidden == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
410 SDL_OutOfMemory();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
411 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
412 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
413 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
414
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
415 while ((!valid_format) && (test_format)) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
416 switch (test_format) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
417 case AUDIO_U8:
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
418 case AUDIO_S16:
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
419 case AUDIO_S32:
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
420 this->spec.format = test_format;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
421 valid_format = 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
422 break;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
423 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
424 test_format = SDL_NextAudioFormat();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
425 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
426
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
427 if (!valid_format) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
428 DSOUND_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
429 SDL_SetError("DirectSound: Unsupported audio format");
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
430 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
431 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
432
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
433 SDL_memset(&waveformat, 0, sizeof(waveformat));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
434 waveformat.wFormatTag = WAVE_FORMAT_PCM;
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
435 waveformat.wBitsPerSample = SDL_AUDIO_BITSIZE(this->spec.format);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
436 waveformat.nChannels = this->spec.channels;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
437 waveformat.nSamplesPerSec = this->spec.freq;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
438 waveformat.nBlockAlign =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
439 waveformat.nChannels * (waveformat.wBitsPerSample / 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
440 waveformat.nAvgBytesPerSec =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
441 waveformat.nSamplesPerSec * waveformat.nBlockAlign;
0
74212992fb08 Initial revision
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parents:
diff changeset
442
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1877
diff changeset
443 /* Update the fragment size as size in bytes */
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
444 SDL_CalculateAudioSpec(&this->spec);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1877
diff changeset
446 /* Open the audio device */
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
447 result = DSoundCreate(NULL, &this->hidden->sound, NULL);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1877
diff changeset
448 if (result != DS_OK) {
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
449 DSOUND_CloseDevice(this);
1895
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parents: 1877
diff changeset
450 SetDSerror("DirectSoundCreate", result);
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
451 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
452 }
0
74212992fb08 Initial revision
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parents:
diff changeset
453
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
454 /* Create the audio buffer to which we write */
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
455 this->hidden->num_buffers = CreateSecondary(this, mainwin, &waveformat);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
456 if (this->hidden->num_buffers < 0) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
457 DSOUND_CloseDevice(this);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
458 return 0;
1895
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parents: 1877
diff changeset
459 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
460
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
461 /* The buffer will auto-start playing in DSOUND_WaitDevice() */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
462 this->hidden->mixlen = this->spec.size;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
463
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
464 return 1; /* good to go. */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
465 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
466
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
467
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
468 static void
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
469 DSOUND_Deinitialize(void)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
470 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
471 DSOUND_Unload();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
472 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
473
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
474
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
475 static int
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
476 DSOUND_Init(SDL_AudioDriverImpl *impl)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
477 {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
478 OSVERSIONINFO ver;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
479
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
480 /*
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
481 * Unfortunately, the sound drivers on NT have higher latencies than the
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
482 * audio buffers used by many SDL applications, so there are gaps in the
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
483 * audio - it sounds terrible. Punt for now.
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
484 */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
485 SDL_memset(&ver, '\0', sizeof (OSVERSIONINFO));
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
486 ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
487 GetVersionEx(&ver);
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
488 if (ver.dwPlatformId == VER_PLATFORM_WIN32_NT)
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
489 if (ver.dwMajorVersion <= 4) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
490 return 0; /* NT4.0 or earlier. Disable dsound support. */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
491 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
492 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
493
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
494 if (!DSOUND_Load()) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
495 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
496 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
497
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
498 /* Set the function pointers */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
499 impl->OpenDevice = DSOUND_OpenDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
500 impl->PlayDevice = DSOUND_PlayDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
501 impl->WaitDevice = DSOUND_WaitDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
502 impl->WaitDone = DSOUND_WaitDone;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
503 impl->ThreadInit = DSOUND_ThreadInit;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
504 impl->GetDeviceBuf = DSOUND_GetDeviceBuf;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
505 impl->CloseDevice = DSOUND_CloseDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
506 impl->Deinitialize = DSOUND_Deinitialize;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
507 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
508
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
509 return 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
510 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
511
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
512 AudioBootStrap DSOUND_bootstrap = {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
513 "dsound", WINDOWS_OS_NAME "DirectSound", DSOUND_Init, 0
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
514 };
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2008
diff changeset
515
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1877
diff changeset
516 /* vi: set ts=4 sw=4 expandtab: */