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annotate src/audio/windx5/SDL_dx5audio.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents d910939febfa
children 4da1ee79c9af
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 /* Define this if you want to use DirectX 6 DirectSoundNotify interface */
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32 //#define USE_POSITION_NOTIFY
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33
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34 /* DirectX function pointers for audio */
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35 HRESULT (WINAPI * DSoundCreate) (LPGUID, LPDIRECTSOUND *, LPUNKNOWN);
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36
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37 /* Audio driver functions */
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38 static int DX5_OpenAudio (_THIS, SDL_AudioSpec * spec);
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39 static void DX5_ThreadInit (_THIS);
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40 static void DX5_WaitAudio_BusyWait (_THIS);
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41 #ifdef USE_POSITION_NOTIFY
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42 static void DX6_WaitAudio_EventWait (_THIS);
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43 #endif
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44 static void DX5_PlayAudio (_THIS);
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45 static Uint8 *DX5_GetAudioBuf (_THIS);
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46 static void DX5_WaitDone (_THIS);
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47 static void DX5_CloseAudio (_THIS);
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48
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49 /* Audio driver bootstrap functions */
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50
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51 static int
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52 Audio_Available (void)
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53 {
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54 HINSTANCE DSoundDLL;
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55 int dsound_ok;
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56
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57 /* Version check DSOUND.DLL (Is DirectX okay?) */
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58 dsound_ok = 0;
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59 DSoundDLL = LoadLibrary (TEXT ("DSOUND.DLL"));
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60 if (DSoundDLL != NULL) {
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61 /* We just use basic DirectSound, we're okay */
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62 /* Yay! */
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63 /* Unfortunately, the sound drivers on NT have
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64 higher latencies than the audio buffers used
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65 by many SDL applications, so there are gaps
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66 in the audio - it sounds terrible. Punt for now.
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67 */
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68 OSVERSIONINFO ver;
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69 ver.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
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70 GetVersionEx (&ver);
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71 switch (ver.dwPlatformId) {
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72 case VER_PLATFORM_WIN32_NT:
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73 if (ver.dwMajorVersion > 4) {
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74 /* Win2K */
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75 dsound_ok = 1;
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76 } else {
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77 /* WinNT */
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78 dsound_ok = 0;
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79 }
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80 break;
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81 default:
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82 /* Win95 or Win98 */
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83 dsound_ok = 1;
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84 break;
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85 }
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86 /* Now check for DirectX 5 or better - otherwise
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87 * we will fail later in DX5_OpenAudio without a chance
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88 * to fall back to the DIB driver. */
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89 if (dsound_ok) {
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90 /* DirectSoundCaptureCreate was added in DX5 */
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91 if (!GetProcAddress
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92 (DSoundDLL, TEXT ("DirectSoundCaptureCreate")))
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93 dsound_ok = 0;
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94
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95 }
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96 /* Clean up.. */
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97 FreeLibrary (DSoundDLL);
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98 }
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99 return (dsound_ok);
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100 }
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101
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102 /* Functions for loading the DirectX functions dynamically */
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103 static HINSTANCE DSoundDLL = NULL;
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104
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105 static void
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106 DX5_Unload (void)
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107 {
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108 if (DSoundDLL != NULL) {
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109 FreeLibrary (DSoundDLL);
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110 DSoundCreate = NULL;
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111 DSoundDLL = NULL;
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112 }
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113 }
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114 static int
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115 DX5_Load (void)
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116 {
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117 int status;
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118
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119 DX5_Unload ();
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120 DSoundDLL = LoadLibrary (TEXT ("DSOUND.DLL"));
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121 if (DSoundDLL != NULL) {
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122 DSoundCreate = (void *) GetProcAddress (DSoundDLL,
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123 TEXT ("DirectSoundCreate"));
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124 }
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125 if (DSoundDLL && DSoundCreate) {
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126 status = 0;
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127 } else {
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128 DX5_Unload ();
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129 status = -1;
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130 }
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131 return status;
0
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132 }
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133
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134 static void
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135 Audio_DeleteDevice (SDL_AudioDevice * device)
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136 {
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137 DX5_Unload ();
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138 SDL_free (device->hidden);
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139 SDL_free (device);
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140 }
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141
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142 static SDL_AudioDevice *
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143 Audio_CreateDevice (int devindex)
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144 {
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145 SDL_AudioDevice *this;
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146
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147 /* Load DirectX */
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148 if (DX5_Load () < 0) {
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149 return (NULL);
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150 }
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151
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152 /* Initialize all variables that we clean on shutdown */
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153 this = (SDL_AudioDevice *) SDL_malloc (sizeof (SDL_AudioDevice));
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154 if (this) {
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155 SDL_memset (this, 0, (sizeof *this));
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156 this->hidden = (struct SDL_PrivateAudioData *)
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157 SDL_malloc ((sizeof *this->hidden));
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158 }
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159 if ((this == NULL) || (this->hidden == NULL)) {
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160 SDL_OutOfMemory ();
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161 if (this) {
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162 SDL_free (this);
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163 }
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164 return (0);
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165 }
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166 SDL_memset (this->hidden, 0, (sizeof *this->hidden));
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167
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168 /* Set the function pointers */
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169 this->OpenAudio = DX5_OpenAudio;
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170 this->ThreadInit = DX5_ThreadInit;
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171 this->WaitAudio = DX5_WaitAudio_BusyWait;
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172 this->PlayAudio = DX5_PlayAudio;
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173 this->GetAudioBuf = DX5_GetAudioBuf;
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174 this->WaitDone = DX5_WaitDone;
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175 this->CloseAudio = DX5_CloseAudio;
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176
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177 this->free = Audio_DeleteDevice;
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178
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179 return this;
0
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180 }
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181
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182 AudioBootStrap DSOUND_bootstrap = {
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183 "dsound", "Win95/98/2000 DirectSound",
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184 Audio_Available, Audio_CreateDevice
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185 };
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186
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187 static void
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188 SetDSerror (const char *function, int code)
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189 {
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190 static const char *error;
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191 static char errbuf[1024];
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192
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193 errbuf[0] = 0;
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194 switch (code) {
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195 case E_NOINTERFACE:
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196 error =
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197 "Unsupported interface\n-- Is DirectX 5.0 or later installed?";
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198 break;
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199 case DSERR_ALLOCATED:
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200 error = "Audio device in use";
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201 break;
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202 case DSERR_BADFORMAT:
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203 error = "Unsupported audio format";
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204 break;
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205 case DSERR_BUFFERLOST:
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206 error = "Mixing buffer was lost";
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207 break;
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208 case DSERR_CONTROLUNAVAIL:
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209 error = "Control requested is not available";
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210 break;
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211 case DSERR_INVALIDCALL:
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212 error = "Invalid call for the current state";
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213 break;
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214 case DSERR_INVALIDPARAM:
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215 error = "Invalid parameter";
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216 break;
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217 case DSERR_NODRIVER:
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218 error = "No audio device found";
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219 break;
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220 case DSERR_OUTOFMEMORY:
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221 error = "Out of memory";
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222 break;
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223 case DSERR_PRIOLEVELNEEDED:
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224 error = "Caller doesn't have priority";
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225 break;
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226 case DSERR_UNSUPPORTED:
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227 error = "Function not supported";
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228 break;
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229 default:
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230 SDL_snprintf (errbuf, SDL_arraysize (errbuf),
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231 "%s: Unknown DirectSound error: 0x%x", function, code);
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232 break;
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233 }
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234 if (!errbuf[0]) {
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235 SDL_snprintf (errbuf, SDL_arraysize (errbuf), "%s: %s", function,
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diff changeset
236 error);
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237 }
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238 SDL_SetError ("%s", errbuf);
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239 return;
0
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240 }
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diff changeset
241
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diff changeset
242 /* DirectSound needs to be associated with a window */
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diff changeset
243 static HWND mainwin = NULL;
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diff changeset
244 /* */
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diff changeset
245 void
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246 DX5_SoundFocus (HWND hwnd)
0
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247 {
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diff changeset
248 mainwin = hwnd;
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diff changeset
249 }
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diff changeset
250
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diff changeset
251 static void
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252 DX5_ThreadInit (_THIS)
0
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253 {
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254 SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_HIGHEST);
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255 }
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256
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257 static void
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258 DX5_WaitAudio_BusyWait (_THIS)
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259 {
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260 DWORD status;
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261 DWORD cursor, junk;
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262 HRESULT result;
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263
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264 /* Semi-busy wait, since we have no way of getting play notification
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265 on a primary mixing buffer located in hardware (DirectX 5.0)
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266 */
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267 result = IDirectSoundBuffer_GetCurrentPosition (mixbuf, &cursor, &junk);
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268 if (result != DS_OK) {
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269 if (result == DSERR_BUFFERLOST) {
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270 IDirectSoundBuffer_Restore (mixbuf);
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271 }
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272 #ifdef DEBUG_SOUND
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273 SetDSerror ("DirectSound GetCurrentPosition", result);
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274 #endif
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275 return;
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276 }
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277 cursor /= mixlen;
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278
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279 while (cursor == playing) {
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280 /* FIXME: find out how much time is left and sleep that long */
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281 SDL_Delay (10);
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282
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283 /* Try to restore a lost sound buffer */
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284 IDirectSoundBuffer_GetStatus (mixbuf, &status);
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285 if ((status & DSBSTATUS_BUFFERLOST)) {
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286 IDirectSoundBuffer_Restore (mixbuf);
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287 IDirectSoundBuffer_GetStatus (mixbuf, &status);
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288 if ((status & DSBSTATUS_BUFFERLOST)) {
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289 break;
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290 }
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291 }
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292 if (!(status & DSBSTATUS_PLAYING)) {
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293 result = IDirectSoundBuffer_Play (mixbuf, 0, 0, DSBPLAY_LOOPING);
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294 if (result == DS_OK) {
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295 continue;
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296 }
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297 #ifdef DEBUG_SOUND
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298 SetDSerror ("DirectSound Play", result);
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299 #endif
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300 return;
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301 }
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302
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303 /* Find out where we are playing */
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304 result = IDirectSoundBuffer_GetCurrentPosition (mixbuf,
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305 &cursor, &junk);
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306 if (result != DS_OK) {
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307 SetDSerror ("DirectSound GetCurrentPosition", result);
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308 return;
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309 }
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310 cursor /= mixlen;
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311 }
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312 }
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313
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314 #ifdef USE_POSITION_NOTIFY
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315 static void
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316 DX6_WaitAudio_EventWait (_THIS)
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317 {
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318 DWORD status;
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319 HRESULT result;
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320
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321 /* Try to restore a lost sound buffer */
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322 IDirectSoundBuffer_GetStatus (mixbuf, &status);
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323 if ((status & DSBSTATUS_BUFFERLOST)) {
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324 IDirectSoundBuffer_Restore (mixbuf);
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325 IDirectSoundBuffer_GetStatus (mixbuf, &status);
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326 if ((status & DSBSTATUS_BUFFERLOST)) {
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327 return;
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328 }
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329 }
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330 if (!(status & DSBSTATUS_PLAYING)) {
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331 result = IDirectSoundBuffer_Play (mixbuf, 0, 0, DSBPLAY_LOOPING);
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332 if (result != DS_OK) {
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333 #ifdef DEBUG_SOUND
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334 SetDSerror ("DirectSound Play", result);
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335 #endif
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336 return;
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337 }
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338 }
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339 WaitForSingleObject (audio_event, INFINITE);
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340 }
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341 #endif /* USE_POSITION_NOTIFY */
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342
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343 static void
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344 DX5_PlayAudio (_THIS)
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345 {
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346 /* Unlock the buffer, allowing it to play */
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347 if (locked_buf) {
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348 IDirectSoundBuffer_Unlock (mixbuf, locked_buf, mixlen, NULL, 0);
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349 }
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350
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351 }
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352
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353 static Uint8 *
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354 DX5_GetAudioBuf (_THIS)
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355 {
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356 DWORD cursor, junk;
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357 HRESULT result;
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358 DWORD rawlen;
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359
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360 /* Figure out which blocks to fill next */
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361 locked_buf = NULL;
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362 result = IDirectSoundBuffer_GetCurrentPosition (mixbuf, &cursor, &junk);
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363 if (result == DSERR_BUFFERLOST) {
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364 IDirectSoundBuffer_Restore (mixbuf);
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365 result = IDirectSoundBuffer_GetCurrentPosition (mixbuf,
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366 &cursor, &junk);
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367 }
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368 if (result != DS_OK) {
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369 SetDSerror ("DirectSound GetCurrentPosition", result);
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370 return (NULL);
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371 }
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372 cursor /= mixlen;
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373 playing = cursor;
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374 cursor = (cursor + 1) % NUM_BUFFERS;
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375 cursor *= mixlen;
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376
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377 /* Lock the audio buffer */
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378 result = IDirectSoundBuffer_Lock (mixbuf, cursor, mixlen,
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379 (LPVOID *) & locked_buf, &rawlen, NULL,
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380 &junk, 0);
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381 if (result == DSERR_BUFFERLOST) {
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382 IDirectSoundBuffer_Restore (mixbuf);
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383 result = IDirectSoundBuffer_Lock (mixbuf, cursor, mixlen,
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diff changeset
384 (LPVOID *) & locked_buf, &rawlen,
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385 NULL, &junk, 0);
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386 }
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387 if (result != DS_OK) {
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388 SetDSerror ("DirectSound Lock", result);
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389 return (NULL);
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390 }
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391 return (locked_buf);
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392 }
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393
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394 static void
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395 DX5_WaitDone (_THIS)
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396 {
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397 Uint8 *stream;
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398
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399 /* Wait for the playing chunk to finish */
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400 stream = this->GetAudioBuf (this);
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401 if (stream != NULL) {
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402 SDL_memset (stream, silence, mixlen);
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403 this->PlayAudio (this);
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404 }
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405 this->WaitAudio (this);
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406
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407 /* Stop the looping sound buffer */
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408 IDirectSoundBuffer_Stop (mixbuf);
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409 }
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diff changeset
410
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diff changeset
411 static void
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412 DX5_CloseAudio (_THIS)
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413 {
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414 if (sound != NULL) {
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diff changeset
415 if (mixbuf != NULL) {
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416 /* Clean up the audio buffer */
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417 IDirectSoundBuffer_Release (mixbuf);
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418 mixbuf = NULL;
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419 }
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diff changeset
420 if (audio_event != NULL) {
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diff changeset
421 CloseHandle (audio_event);
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diff changeset
422 audio_event = NULL;
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423 }
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diff changeset
424 IDirectSound_Release (sound);
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diff changeset
425 sound = NULL;
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426 }
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diff changeset
427 }
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diff changeset
428
469
a1284fd544aa Removed unused function
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parents: 453
diff changeset
429 #ifdef USE_PRIMARY_BUFFER
0
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diff changeset
430 /* This function tries to create a primary audio buffer, and returns the
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diff changeset
431 number of audio chunks available in the created buffer.
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diff changeset
432 */
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433 static int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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434 CreatePrimary (LPDIRECTSOUND sndObj, HWND focus,
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435 LPDIRECTSOUNDBUFFER * sndbuf, WAVEFORMATEX * wavefmt,
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436 Uint32 chunksize)
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diff changeset
437 {
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diff changeset
438 HRESULT result;
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439 DSBUFFERDESC format;
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440 DSBCAPS caps;
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441 int numchunks;
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diff changeset
442
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diff changeset
443 /* Try to set primary mixing privileges */
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444 result = IDirectSound_SetCooperativeLevel (sndObj, focus,
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445 DSSCL_WRITEPRIMARY);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
446 if (result != DS_OK) {
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diff changeset
447 #ifdef DEBUG_SOUND
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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448 SetDSerror ("DirectSound SetCooperativeLevel", result);
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diff changeset
449 #endif
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450 return (-1);
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diff changeset
451 }
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diff changeset
452
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diff changeset
453 /* Try to create the primary buffer */
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diff changeset
454 SDL_memset (&format, 0, sizeof (format));
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diff changeset
455 format.dwSize = sizeof (format);
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456 format.dwFlags = (DSBCAPS_PRIMARYBUFFER | DSBCAPS_GETCURRENTPOSITION2);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
457 format.dwFlags |= DSBCAPS_STICKYFOCUS;
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diff changeset
458 #ifdef USE_POSITION_NOTIFY
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diff changeset
459 format.dwFlags |= DSBCAPS_CTRLPOSITIONNOTIFY;
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diff changeset
460 #endif
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diff changeset
461 result = IDirectSound_CreateSoundBuffer (sndObj, &format, sndbuf, NULL);
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diff changeset
462 if (result != DS_OK) {
0
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diff changeset
463 #ifdef DEBUG_SOUND
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
464 SetDSerror ("DirectSound CreateSoundBuffer", result);
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diff changeset
465 #endif
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diff changeset
466 return (-1);
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diff changeset
467 }
0
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diff changeset
468
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diff changeset
469 /* Check the size of the fragment buffer */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
470 SDL_memset (&caps, 0, sizeof (caps));
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diff changeset
471 caps.dwSize = sizeof (caps);
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diff changeset
472 result = IDirectSoundBuffer_GetCaps (*sndbuf, &caps);
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diff changeset
473 if (result != DS_OK) {
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diff changeset
474 #ifdef DEBUG_SOUND
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diff changeset
475 SetDSerror ("DirectSound GetCaps", result);
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diff changeset
476 #endif
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diff changeset
477 IDirectSoundBuffer_Release (*sndbuf);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
478 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
479 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
480 if ((chunksize > caps.dwBufferBytes) ||
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
481 ((caps.dwBufferBytes % chunksize) != 0)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
482 /* The primary buffer size is not a multiple of 'chunksize'
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
483 -- this hopefully doesn't happen when 'chunksize' is a
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
484 power of 2.
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1402
diff changeset
485 */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
486 IDirectSoundBuffer_Release (*sndbuf);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
487 SDL_SetError
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1402
diff changeset
488 ("Primary buffer size is: %d, cannot break it into chunks of %d bytes\n",
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
489 caps.dwBufferBytes, chunksize);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
490 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
491 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
492 numchunks = (caps.dwBufferBytes / chunksize);
0
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parents:
diff changeset
493
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
494 /* Set the primary audio format */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
495 result = IDirectSoundBuffer_SetFormat (*sndbuf, wavefmt);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
496 if (result != DS_OK) {
0
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diff changeset
497 #ifdef DEBUG_SOUND
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
498 SetDSerror ("DirectSound SetFormat", result);
0
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parents:
diff changeset
499 #endif
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
500 IDirectSoundBuffer_Release (*sndbuf);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
501 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
502 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
503 return (numchunks);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
504 }
469
a1284fd544aa Removed unused function
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
505 #endif /* USE_PRIMARY_BUFFER */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
506
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
507 /* This function tries to create a secondary audio buffer, and returns the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
508 number of audio chunks available in the created buffer.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
509 */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
510 static int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
511 CreateSecondary (LPDIRECTSOUND sndObj, HWND focus,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
512 LPDIRECTSOUNDBUFFER * sndbuf, WAVEFORMATEX * wavefmt,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
513 Uint32 chunksize)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
514 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
515 const int numchunks = 2;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
516 HRESULT result;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
517 DSBUFFERDESC format;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
518 LPVOID pvAudioPtr1, pvAudioPtr2;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
519 DWORD dwAudioBytes1, dwAudioBytes2;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
521 /* Try to set primary mixing privileges */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
522 if (focus) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
523 result = IDirectSound_SetCooperativeLevel (sndObj,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
524 focus, DSSCL_PRIORITY);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
525 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
526 result = IDirectSound_SetCooperativeLevel (sndObj,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
527 GetDesktopWindow (),
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
528 DSSCL_NORMAL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
529 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
530 if (result != DS_OK) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
531 #ifdef DEBUG_SOUND
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
532 SetDSerror ("DirectSound SetCooperativeLevel", result);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
533 #endif
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
534 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
535 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
536
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
537 /* Try to create the secondary buffer */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
538 SDL_memset (&format, 0, sizeof (format));
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
539 format.dwSize = sizeof (format);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
540 format.dwFlags = DSBCAPS_GETCURRENTPOSITION2;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
541 #ifdef USE_POSITION_NOTIFY
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
542 format.dwFlags |= DSBCAPS_CTRLPOSITIONNOTIFY;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
543 #endif
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
544 if (!focus) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
545 format.dwFlags |= DSBCAPS_GLOBALFOCUS;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
546 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
547 format.dwFlags |= DSBCAPS_STICKYFOCUS;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
548 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
549 format.dwBufferBytes = numchunks * chunksize;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
550 if ((format.dwBufferBytes < DSBSIZE_MIN) ||
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
551 (format.dwBufferBytes > DSBSIZE_MAX)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
552 SDL_SetError ("Sound buffer size must be between %d and %d",
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
553 DSBSIZE_MIN / numchunks, DSBSIZE_MAX / numchunks);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
554 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
555 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
556 format.dwReserved = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
557 format.lpwfxFormat = wavefmt;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
558 result = IDirectSound_CreateSoundBuffer (sndObj, &format, sndbuf, NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
559 if (result != DS_OK) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
560 SetDSerror ("DirectSound CreateSoundBuffer", result);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
561 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
562 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
563 IDirectSoundBuffer_SetFormat (*sndbuf, wavefmt);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
564
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
565 /* Silence the initial audio buffer */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
566 result = IDirectSoundBuffer_Lock (*sndbuf, 0, format.dwBufferBytes,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
567 (LPVOID *) & pvAudioPtr1,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
568 &dwAudioBytes1,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
569 (LPVOID *) & pvAudioPtr2,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
570 &dwAudioBytes2, DSBLOCK_ENTIREBUFFER);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
571 if (result == DS_OK) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
572 if (wavefmt->wBitsPerSample == 8) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
573 SDL_memset (pvAudioPtr1, 0x80, dwAudioBytes1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
574 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
575 SDL_memset (pvAudioPtr1, 0x00, dwAudioBytes1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
576 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
577 IDirectSoundBuffer_Unlock (*sndbuf,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
578 (LPVOID) pvAudioPtr1, dwAudioBytes1,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
579 (LPVOID) pvAudioPtr2, dwAudioBytes2);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
580 }
118
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
581
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
582 /* We're ready to go */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
583 return (numchunks);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
584 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
585
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
586 /* This function tries to set position notify events on the mixing buffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
587 #ifdef USE_POSITION_NOTIFY
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
588 static int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
589 CreateAudioEvent (_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
590 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
591 LPDIRECTSOUNDNOTIFY notify;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
592 DSBPOSITIONNOTIFY *notify_positions;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
593 int i, retval;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
594 HRESULT result;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
595
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
596 /* Default to fail on exit */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
597 retval = -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
598 notify = NULL;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
599
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
600 /* Query for the interface */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
601 result = IDirectSoundBuffer_QueryInterface (mixbuf,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
602 &IID_IDirectSoundNotify,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
603 (void *) &notify);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
604 if (result != DS_OK) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
605 goto done;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
606 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
607
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
608 /* Allocate the notify structures */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
609 notify_positions = (DSBPOSITIONNOTIFY *) SDL_malloc (NUM_BUFFERS *
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
610 sizeof
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
611 (*notify_positions));
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
612 if (notify_positions == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
613 goto done;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
614 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
615
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
616 /* Create the notify event */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
617 audio_event = CreateEvent (NULL, FALSE, FALSE, NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
618 if (audio_event == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
619 goto done;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
620 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
621
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
622 /* Set up the notify structures */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
623 for (i = 0; i < NUM_BUFFERS; ++i) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
624 notify_positions[i].dwOffset = i * mixlen;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
625 notify_positions[i].hEventNotify = audio_event;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
626 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
627 result = IDirectSoundNotify_SetNotificationPositions (notify,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
628 NUM_BUFFERS,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
629 notify_positions);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
630 if (result == DS_OK) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
631 retval = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
632 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
633 done:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
634 if (notify != NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
635 IDirectSoundNotify_Release (notify);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
636 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
637 return (retval);
0
74212992fb08 Initial revision
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parents:
diff changeset
638 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
639 #endif /* USE_POSITION_NOTIFY */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
640
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
641 static int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
642 DX5_OpenAudio (_THIS, SDL_AudioSpec * spec)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
643 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
644 HRESULT result;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
645 WAVEFORMATEX waveformat;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
646
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
647 /* Set basic WAVE format parameters */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
648 SDL_memset (&waveformat, 0, sizeof (waveformat));
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
649 waveformat.wFormatTag = WAVE_FORMAT_PCM;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
650
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
651 /* Determine the audio parameters from the AudioSpec */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
652 switch (spec->format & 0xFF) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
653 case 8:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
654 /* Unsigned 8 bit audio data */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
655 spec->format = AUDIO_U8;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
656 silence = 0x80;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
657 waveformat.wBitsPerSample = 8;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
658 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
659 case 16:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
660 /* Signed 16 bit audio data */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
661 spec->format = AUDIO_S16;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
662 silence = 0x00;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
663 waveformat.wBitsPerSample = 16;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
664 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
665 default:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
666 SDL_SetError ("Unsupported audio format");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
667 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
668 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
669 waveformat.nChannels = spec->channels;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
670 waveformat.nSamplesPerSec = spec->freq;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
671 waveformat.nBlockAlign =
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
672 waveformat.nChannels * (waveformat.wBitsPerSample / 8);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
673 waveformat.nAvgBytesPerSec =
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
674 waveformat.nSamplesPerSec * waveformat.nBlockAlign;
0
74212992fb08 Initial revision
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parents:
diff changeset
675
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
676 /* Update the fragment size as size in bytes */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
677 SDL_CalculateAudioSpec (spec);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
678
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
679 /* Open the audio device */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
680 result = DSoundCreate (NULL, &sound, NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
681 if (result != DS_OK) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
682 SetDSerror ("DirectSoundCreate", result);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
683 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
684 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
685
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
686 /* Create the audio buffer to which we write */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
687 NUM_BUFFERS = -1;
375
17976f0f503f Use secondary audio buffers to avoid problems on various soundcards
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
688 #ifdef USE_PRIMARY_BUFFER
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
689 if (mainwin) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
690 NUM_BUFFERS = CreatePrimary (sound, mainwin, &mixbuf,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
691 &waveformat, spec->size);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
692 }
375
17976f0f503f Use secondary audio buffers to avoid problems on various soundcards
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
693 #endif /* USE_PRIMARY_BUFFER */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
694 if (NUM_BUFFERS < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
695 NUM_BUFFERS = CreateSecondary (sound, mainwin, &mixbuf,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
696 &waveformat, spec->size);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
697 if (NUM_BUFFERS < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
698 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
699 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
700 #ifdef DEBUG_SOUND
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
701 fprintf (stderr, "Using secondary audio buffer\n");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
702 #endif
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
703 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
704 #ifdef DEBUG_SOUND
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
705 else
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
706 fprintf (stderr, "Using primary audio buffer\n");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
707 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
708
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
709 /* The buffer will auto-start playing in DX5_WaitAudio() */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
710 playing = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
711 mixlen = spec->size;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
712
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
713 #ifdef USE_POSITION_NOTIFY
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
714 /* See if we can use DirectX 6 event notification */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
715 if (CreateAudioEvent (this) == 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
716 this->WaitAudio = DX6_WaitAudio_EventWait;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
717 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
718 this->WaitAudio = DX5_WaitAudio_BusyWait;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
719 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
720 #endif
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
721 return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
722 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
723
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
724 /* vi: set ts=4 sw=4 expandtab: */