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annotate src/audio/windx5/SDL_dx5audio.c @ 1731:875c3cf1a12c SDL-1.3

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SDL_PushEvent() calls the event filter code, and has a return value to tell whether or not the event was actually pushed. SDL_GetEventFilter() now returns an SDL_bool instead of the filter function.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 08 Jul 2006 20:07:08 +0000
parents 442248d4e738
children
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(DSoundDLL, TEXT("DirectSoundCaptureCreate")))
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92 dsound_ok = 0;
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93
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94 }
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95 /* Clean up.. */
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96 FreeLibrary(DSoundDLL);
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97 }
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98 return (dsound_ok);
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99 }
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100
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101 /* Functions for loading the DirectX functions dynamically */
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102 static HINSTANCE DSoundDLL = NULL;
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103
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104 static void
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105 DX5_Unload(void)
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106 {
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107 if (DSoundDLL != NULL) {
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108 FreeLibrary(DSoundDLL);
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109 DSoundCreate = NULL;
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110 DSoundDLL = NULL;
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111 }
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112 }
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113 static int
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114 DX5_Load(void)
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115 {
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116 int status;
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117
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118 DX5_Unload();
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119 DSoundDLL = LoadLibrary(TEXT("DSOUND.DLL"));
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120 if (DSoundDLL != NULL) {
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121 DSoundCreate = (void *) GetProcAddress(DSoundDLL,
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122 TEXT("DirectSoundCreate"));
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123 }
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124 if (DSoundDLL && DSoundCreate) {
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125 status = 0;
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126 } else {
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127 DX5_Unload();
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128 status = -1;
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129 }
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130 return status;
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131 }
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132
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133 static void
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134 Audio_DeleteDevice(SDL_AudioDevice * device)
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135 {
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136 DX5_Unload();
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137 SDL_free(device->hidden);
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138 SDL_free(device);
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139 }
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140
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141 static SDL_AudioDevice *
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142 Audio_CreateDevice(int devindex)
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143 {
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144 SDL_AudioDevice *this;
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145
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146 /* Load DirectX */
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147 if (DX5_Load() < 0) {
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148 return (NULL);
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149 }
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150
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151 /* Initialize all variables that we clean on shutdown */
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152 this = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
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153 if (this) {
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154 SDL_memset(this, 0, (sizeof *this));
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155 this->hidden = (struct SDL_PrivateAudioData *)
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156 SDL_malloc((sizeof *this->hidden));
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157 }
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158 if ((this == NULL) || (this->hidden == NULL)) {
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159 SDL_OutOfMemory();
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160 if (this) {
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161 SDL_free(this);
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162 }
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163 return (0);
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164 }
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165 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
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166
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167 /* Set the function pointers */
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168 this->OpenAudio = DX5_OpenAudio;
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169 this->ThreadInit = DX5_ThreadInit;
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170 this->WaitAudio = DX5_WaitAudio_BusyWait;
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171 this->PlayAudio = DX5_PlayAudio;
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172 this->GetAudioBuf = DX5_GetAudioBuf;
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173 this->WaitDone = DX5_WaitDone;
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174 this->CloseAudio = DX5_CloseAudio;
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175
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176 this->free = Audio_DeleteDevice;
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177
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178 return this;
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179 }
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180
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181 AudioBootStrap DSOUND_bootstrap = {
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182 "dsound", "Win95/98/2000 DirectSound",
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183 Audio_Available, Audio_CreateDevice
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184 };
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185
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186 static void
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187 SetDSerror(const char *function, int code)
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188 {
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189 static const char *error;
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190 static char errbuf[1024];
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191
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192 errbuf[0] = 0;
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193 switch (code) {
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194 case E_NOINTERFACE:
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195 error =
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196 "Unsupported interface\n-- Is DirectX 5.0 or later installed?";
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197 break;
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198 case DSERR_ALLOCATED:
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199 error = "Audio device in use";
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200 break;
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201 case DSERR_BADFORMAT:
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202 error = "Unsupported audio format";
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203 break;
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204 case DSERR_BUFFERLOST:
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205 error = "Mixing buffer was lost";
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206 break;
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207 case DSERR_CONTROLUNAVAIL:
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208 error = "Control requested is not available";
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209 break;
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210 case DSERR_INVALIDCALL:
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211 error = "Invalid call for the current state";
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212 break;
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213 case DSERR_INVALIDPARAM:
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214 error = "Invalid parameter";
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215 break;
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216 case DSERR_NODRIVER:
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217 error = "No audio device found";
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218 break;
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219 case DSERR_OUTOFMEMORY:
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220 error = "Out of memory";
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221 break;
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222 case DSERR_PRIOLEVELNEEDED:
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223 error = "Caller doesn't have priority";
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224 break;
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225 case DSERR_UNSUPPORTED:
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226 error = "Function not supported";
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227 break;
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228 default:
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229 SDL_snprintf(errbuf, SDL_arraysize(errbuf),
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230 "%s: Unknown DirectSound error: 0x%x", function, code);
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231 break;
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232 }
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233 if (!errbuf[0]) {
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234 SDL_snprintf(errbuf, SDL_arraysize(errbuf), "%s: %s", function,
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235 error);
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236 }
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237 SDL_SetError("%s", errbuf);
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238 return;
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239 }
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240
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241 /* DirectSound needs to be associated with a window */
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242 static HWND mainwin = NULL;
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243 /* */
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244 void
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245 DX5_SoundFocus(HWND hwnd)
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246 {
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247 mainwin = hwnd;
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248 }
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249
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250 static void
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251 DX5_ThreadInit(_THIS)
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252 {
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253 SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST);
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254 }
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255
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256 static void
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257 DX5_WaitAudio_BusyWait(_THIS)
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258 {
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259 DWORD status;
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260 DWORD cursor, junk;
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261 HRESULT result;
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262
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263 /* Semi-busy wait, since we have no way of getting play notification
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264 on a primary mixing buffer located in hardware (DirectX 5.0)
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265 */
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266 result = IDirectSoundBuffer_GetCurrentPosition(mixbuf, &junk, &cursor);
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267 if (result != DS_OK) {
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268 if (result == DSERR_BUFFERLOST) {
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269 IDirectSoundBuffer_Restore(mixbuf);
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270 }
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271 #ifdef DEBUG_SOUND
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272 SetDSerror("DirectSound GetCurrentPosition", result);
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273 #endif
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274 return;
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275 }
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276
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277 while ((cursor / mixlen) == lastchunk) {
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278 /* FIXME: find out how much time is left and sleep that long */
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279 SDL_Delay(1);
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280
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281 /* Try to restore a lost sound buffer */
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282 IDirectSoundBuffer_GetStatus(mixbuf, &status);
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283 if ((status & DSBSTATUS_BUFFERLOST)) {
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284 IDirectSoundBuffer_Restore(mixbuf);
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285 IDirectSoundBuffer_GetStatus(mixbuf, &status);
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286 if ((status & DSBSTATUS_BUFFERLOST)) {
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287 break;
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288 }
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289 }
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290 if (!(status & DSBSTATUS_PLAYING)) {
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291 result = IDirectSoundBuffer_Play(mixbuf, 0, 0, DSBPLAY_LOOPING);
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292 if (result == DS_OK) {
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293 continue;
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294 }
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295 #ifdef DEBUG_SOUND
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296 SetDSerror("DirectSound Play", result);
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297 #endif
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298 return;
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299 }
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300
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301 /* Find out where we are playing */
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302 result = IDirectSoundBuffer_GetCurrentPosition(mixbuf,
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303 &junk, &cursor);
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304 if (result != DS_OK) {
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305 SetDSerror("DirectSound GetCurrentPosition", result);
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306 return;
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307 }
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308 }
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309 }
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310
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311 #ifdef USE_POSITION_NOTIFY
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312 static void
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313 DX6_WaitAudio_EventWait(_THIS)
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314 {
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315 DWORD status;
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316 HRESULT result;
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317
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318 /* Try to restore a lost sound buffer */
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319 IDirectSoundBuffer_GetStatus(mixbuf, &status);
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320 if ((status & DSBSTATUS_BUFFERLOST)) {
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321 IDirectSoundBuffer_Restore(mixbuf);
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322 IDirectSoundBuffer_GetStatus(mixbuf, &status);
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323 if ((status & DSBSTATUS_BUFFERLOST)) {
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324 return;
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325 }
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326 }
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327 if (!(status & DSBSTATUS_PLAYING)) {
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328 result = IDirectSoundBuffer_Play(mixbuf, 0, 0, DSBPLAY_LOOPING);
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329 if (result != DS_OK) {
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330 #ifdef DEBUG_SOUND
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331 SetDSerror("DirectSound Play", result);
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332 #endif
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333 return;
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334 }
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335 }
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336 WaitForSingleObject(audio_event, INFINITE);
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337 }
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338 #endif /* USE_POSITION_NOTIFY */
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339
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340 static void
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341 DX5_PlayAudio(_THIS)
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342 {
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343 /* Unlock the buffer, allowing it to play */
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344 if (locked_buf) {
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345 IDirectSoundBuffer_Unlock(mixbuf, locked_buf, mixlen, NULL, 0);
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346 }
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347
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348 }
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349
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350 static Uint8 *
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351 DX5_GetAudioBuf(_THIS)
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352 {
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353 DWORD cursor, junk;
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354 HRESULT result;
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355 DWORD rawlen;
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356
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357 /* Figure out which blocks to fill next */
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358 locked_buf = NULL;
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359 result = IDirectSoundBuffer_GetCurrentPosition(mixbuf, &junk, &cursor);
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360 if (result == DSERR_BUFFERLOST) {
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361 IDirectSoundBuffer_Restore(mixbuf);
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362 result = IDirectSoundBuffer_GetCurrentPosition(mixbuf,
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363 &junk, &cursor);
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364 }
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365 if (result != DS_OK) {
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366 SetDSerror("DirectSound GetCurrentPosition", result);
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367 return (NULL);
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368 }
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369 cursor /= mixlen;
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370 #ifdef DEBUG_SOUND
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371 /* Detect audio dropouts */
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372 {
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373 DWORD spot = cursor;
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374 if (spot < lastchunk) {
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375 spot += NUM_BUFFERS;
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376 }
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377 if (spot > lastchunk + 1) {
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378 fprintf(stderr, "Audio dropout, missed %d fragments\n",
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379 (spot - (lastchunk + 1)));
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380 }
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381 }
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382 #endif
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383 lastchunk = cursor;
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384 cursor = (cursor + 1) % NUM_BUFFERS;
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385 cursor *= mixlen;
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386
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387 /* Lock the audio buffer */
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388 result = IDirectSoundBuffer_Lock(mixbuf, cursor, mixlen,
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389 (LPVOID *) & locked_buf, &rawlen, NULL,
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390 &junk, 0);
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391 if (result == DSERR_BUFFERLOST) {
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392 IDirectSoundBuffer_Restore(mixbuf);
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393 result = IDirectSoundBuffer_Lock(mixbuf, cursor, mixlen,
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394 (LPVOID *) & locked_buf, &rawlen,
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395 NULL, &junk, 0);
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396 }
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397 if (result != DS_OK) {
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398 SetDSerror("DirectSound Lock", result);
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399 return (NULL);
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400 }
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401 return (locked_buf);
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402 }
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403
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404 static void
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405 DX5_WaitDone(_THIS)
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406 {
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407 Uint8 *stream;
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408
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409 /* Wait for the playing chunk to finish */
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410 stream = this->GetAudioBuf(this);
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411 if (stream != NULL) {
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412 SDL_memset(stream, silence, mixlen);
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413 this->PlayAudio(this);
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414 }
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415 this->WaitAudio(this);
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416
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417 /* Stop the looping sound buffer */
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418 IDirectSoundBuffer_Stop(mixbuf);
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419 }
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420
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421 static void
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422 DX5_CloseAudio(_THIS)
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423 {
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424 if (sound != NULL) {
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425 if (mixbuf != NULL) {
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426 /* Clean up the audio buffer */
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427 IDirectSoundBuffer_Release(mixbuf);
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428 mixbuf = NULL;
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429 }
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430 if (audio_event != NULL) {
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431 CloseHandle(audio_event);
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432 audio_event = NULL;
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433 }
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434 IDirectSound_Release(sound);
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435 sound = NULL;
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436 }
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437 }
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438
469
a1284fd544aa Removed unused function
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parents: 453
diff changeset
439 #ifdef USE_PRIMARY_BUFFER
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440 /* This function tries to create a primary audio buffer, and returns the
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diff changeset
441 number of audio chunks available in the created buffer.
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442 */
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443 static int
1668
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444 CreatePrimary(LPDIRECTSOUND sndObj, HWND focus,
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diff changeset
445 LPDIRECTSOUNDBUFFER * sndbuf, WAVEFORMATEX * wavefmt,
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446 Uint32 chunksize)
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447 {
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448 HRESULT result;
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449 DSBUFFERDESC format;
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450 DSBCAPS caps;
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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451 int numchunks;
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452
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453 /* Try to set primary mixing privileges */
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454 result = IDirectSound_SetCooperativeLevel(sndObj, focus,
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diff changeset
455 DSSCL_WRITEPRIMARY);
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456 if (result != DS_OK) {
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diff changeset
457 #ifdef DEBUG_SOUND
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458 SetDSerror("DirectSound SetCooperativeLevel", result);
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diff changeset
459 #endif
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460 return (-1);
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461 }
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462
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463 /* Try to create the primary buffer */
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464 SDL_memset(&format, 0, sizeof(format));
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465 format.dwSize = sizeof(format);
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466 format.dwFlags = (DSBCAPS_PRIMARYBUFFER | DSBCAPS_GETCURRENTPOSITION2);
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467 format.dwFlags |= DSBCAPS_STICKYFOCUS;
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468 #ifdef USE_POSITION_NOTIFY
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diff changeset
469 format.dwFlags |= DSBCAPS_CTRLPOSITIONNOTIFY;
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diff changeset
470 #endif
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471 result = IDirectSound_CreateSoundBuffer(sndObj, &format, sndbuf, NULL);
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472 if (result != DS_OK) {
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diff changeset
473 #ifdef DEBUG_SOUND
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474 SetDSerror("DirectSound CreateSoundBuffer", result);
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diff changeset
475 #endif
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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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476 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
477 }
0
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diff changeset
478
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479 /* Check the size of the fragment buffer */
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diff changeset
480 SDL_memset(&caps, 0, sizeof(caps));
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481 caps.dwSize = sizeof(caps);
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482 result = IDirectSoundBuffer_GetCaps(*sndbuf, &caps);
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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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483 if (result != DS_OK) {
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diff changeset
484 #ifdef DEBUG_SOUND
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485 SetDSerror("DirectSound GetCaps", result);
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diff changeset
486 #endif
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487 IDirectSoundBuffer_Release(*sndbuf);
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488 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
489 }
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 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
491 ((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
492 /* 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
493 -- 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
494 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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diff changeset
495 */
1668
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diff changeset
496 IDirectSoundBuffer_Release(*sndbuf);
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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
497 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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diff changeset
498 ("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.
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diff changeset
499 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
500 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
501 }
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
502 numchunks = (caps.dwBufferBytes / chunksize);
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diff changeset
503
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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
504 /* Set the primary audio format */
1668
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diff changeset
505 result = IDirectSoundBuffer_SetFormat(*sndbuf, wavefmt);
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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
506 if (result != DS_OK) {
0
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diff changeset
507 #ifdef DEBUG_SOUND
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diff changeset
508 SetDSerror("DirectSound SetFormat", result);
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diff changeset
509 #endif
1668
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diff changeset
510 IDirectSoundBuffer_Release(*sndbuf);
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
511 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
512 }
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
513 return (numchunks);
0
74212992fb08 Initial revision
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parents:
diff changeset
514 }
469
a1284fd544aa Removed unused function
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parents: 453
diff changeset
515 #endif /* USE_PRIMARY_BUFFER */
0
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diff changeset
516
74212992fb08 Initial revision
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diff changeset
517 /* This function tries to create a secondary audio buffer, and returns the
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parents:
diff changeset
518 number of audio chunks available in the created buffer.
74212992fb08 Initial revision
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diff changeset
519 */
1662
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diff changeset
520 static int
1668
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diff changeset
521 CreateSecondary(LPDIRECTSOUND sndObj, HWND focus,
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diff changeset
522 LPDIRECTSOUNDBUFFER * sndbuf, WAVEFORMATEX * wavefmt,
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diff changeset
523 Uint32 chunksize)
0
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diff changeset
524 {
1701
442248d4e738 Merged DirectSound dropout fix from SDL 1.2
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parents: 1668
diff changeset
525 const int numchunks = 8;
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
526 HRESULT result;
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
527 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
528 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
529 DWORD dwAudioBytes1, dwAudioBytes2;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
530
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
531 /* 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
532 if (focus) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
533 result = IDirectSound_SetCooperativeLevel(sndObj,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
534 focus, DSSCL_PRIORITY);
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
535 } else {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
536 result = IDirectSound_SetCooperativeLevel(sndObj,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
537 GetDesktopWindow(),
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
538 DSSCL_NORMAL);
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
539 }
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 if (result != DS_OK) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
541 #ifdef DEBUG_SOUND
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
542 SetDSerror("DirectSound SetCooperativeLevel", result);
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 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
545 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
546
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
547 /* Try to create the secondary buffer */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
548 SDL_memset(&format, 0, sizeof(format));
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
549 format.dwSize = sizeof(format);
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
550 format.dwFlags = DSBCAPS_GETCURRENTPOSITION2;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
551 #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
552 format.dwFlags |= DSBCAPS_CTRLPOSITIONNOTIFY;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
553 #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
554 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
555 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
556 } 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
557 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
558 }
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 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
560 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
561 (format.dwBufferBytes > DSBSIZE_MAX)) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
562 SDL_SetError("Sound buffer size must be between %d and %d",
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
563 DSBSIZE_MIN / numchunks, DSBSIZE_MAX / numchunks);
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
564 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
565 }
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 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
567 format.lpwfxFormat = wavefmt;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
568 result = IDirectSound_CreateSoundBuffer(sndObj, &format, sndbuf, NULL);
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
569 if (result != DS_OK) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
570 SetDSerror("DirectSound CreateSoundBuffer", result);
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
571 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
572 }
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
573 IDirectSoundBuffer_SetFormat(*sndbuf, wavefmt);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
574
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
575 /* Silence the initial audio buffer */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
576 result = IDirectSoundBuffer_Lock(*sndbuf, 0, format.dwBufferBytes,
1701
442248d4e738 Merged DirectSound dropout fix from SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
577 (LPVOID *) & pvAudioPtr1, &dwAudioBytes1,
442248d4e738 Merged DirectSound dropout fix from SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
578 (LPVOID *) & pvAudioPtr2, &dwAudioBytes2,
442248d4e738 Merged DirectSound dropout fix from SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
579 DSBLOCK_ENTIREBUFFER);
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
580 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
581 if (wavefmt->wBitsPerSample == 8) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
582 SDL_memset(pvAudioPtr1, 0x80, dwAudioBytes1);
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
583 } else {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
584 SDL_memset(pvAudioPtr1, 0x00, dwAudioBytes1);
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
585 }
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
586 IDirectSoundBuffer_Unlock(*sndbuf,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
587 (LPVOID) pvAudioPtr1, dwAudioBytes1,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
588 (LPVOID) pvAudioPtr2, dwAudioBytes2);
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
589 }
118
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
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 /* 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
592 return (numchunks);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
593 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
594
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
595 /* This function tries to set position notify events on the mixing buffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
596 #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
597 static int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
598 CreateAudioEvent(_THIS)
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 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
601 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
602 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
603 HRESULT result;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
604
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
605 /* 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
606 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
607 notify = NULL;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
608
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
609 /* Query for the interface */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
610 result = IDirectSoundBuffer_QueryInterface(mixbuf,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
611 &IID_IDirectSoundNotify,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
612 (void *) &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
613 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
614 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
615 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
616
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
617 /* Allocate the notify structures */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
618 notify_positions = (DSBPOSITIONNOTIFY *) SDL_malloc(NUM_BUFFERS *
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
619 sizeof
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
620 (*notify_positions));
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
621 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
622 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
623 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
624
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
625 /* Create the notify event */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
626 audio_event = CreateEvent(NULL, FALSE, FALSE, NULL);
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
627 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
628 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
629 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
630
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
631 /* 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
632 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
633 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
634 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
635 }
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
636 result = IDirectSoundNotify_SetNotificationPositions(notify,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
637 NUM_BUFFERS,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
638 notify_positions);
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
639 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
640 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
641 }
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 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
643 if (notify != NULL) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
644 IDirectSoundNotify_Release(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
645 }
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
646 return (retval);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
647 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
648 #endif /* USE_POSITION_NOTIFY */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
649
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
650 static int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
651 DX5_OpenAudio(_THIS, SDL_AudioSpec * spec)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
652 {
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
653 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
654 WAVEFORMATEX waveformat;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
655
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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parents: 1402
diff changeset
656 /* Set basic WAVE format parameters */
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diff changeset
657 SDL_memset(&waveformat, 0, sizeof(waveformat));
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658 waveformat.wFormatTag = WAVE_FORMAT_PCM;
0
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659
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660 /* 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.
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diff changeset
661 switch (spec->format & 0xFF) {
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parents: 1402
diff changeset
662 case 8:
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
663 /* 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.
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parents: 1402
diff changeset
664 spec->format = AUDIO_U8;
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665 silence = 0x80;
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diff changeset
666 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.
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parents: 1402
diff changeset
667 break;
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parents: 1402
diff changeset
668 case 16:
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
669 /* Signed 16 bit audio data */
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670 spec->format = AUDIO_S16;
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parents: 1402
diff changeset
671 silence = 0x00;
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672 waveformat.wBitsPerSample = 16;
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parents: 1402
diff changeset
673 break;
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674 default:
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675 SDL_SetError("Unsupported audio format");
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676 return (-1);
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677 }
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678 waveformat.nChannels = spec->channels;
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diff changeset
679 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.
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parents: 1402
diff changeset
680 waveformat.nBlockAlign =
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parents: 1402
diff changeset
681 waveformat.nChannels * (waveformat.wBitsPerSample / 8);
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parents: 1402
diff changeset
682 waveformat.nAvgBytesPerSec =
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
683 waveformat.nSamplesPerSec * waveformat.nBlockAlign;
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74212992fb08 Initial revision
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diff changeset
684
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
685 /* Update the fragment size as size in bytes */
1668
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diff changeset
686 SDL_CalculateAudioSpec(spec);
0
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diff changeset
687
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diff changeset
688 /* Open the audio device */
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689 result = DSoundCreate(NULL, &sound, NULL);
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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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parents: 1402
diff changeset
690 if (result != DS_OK) {
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diff changeset
691 SetDSerror("DirectSoundCreate", result);
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diff changeset
692 return (-1);
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parents: 1402
diff changeset
693 }
0
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parents:
diff changeset
694
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diff changeset
695 /* 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
696 NUM_BUFFERS = -1;
375
17976f0f503f Use secondary audio buffers to avoid problems on various soundcards
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
697 #ifdef USE_PRIMARY_BUFFER
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diff changeset
698 if (mainwin) {
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diff changeset
699 NUM_BUFFERS = CreatePrimary(sound, mainwin, &mixbuf,
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diff changeset
700 &waveformat, spec->size);
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701 }
375
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diff changeset
702 #endif /* USE_PRIMARY_BUFFER */
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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
703 if (NUM_BUFFERS < 0) {
1668
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diff changeset
704 NUM_BUFFERS = CreateSecondary(sound, mainwin, &mixbuf,
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parents: 1662
diff changeset
705 &waveformat, spec->size);
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
706 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
707 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>
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diff changeset
708 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
709 #ifdef DEBUG_SOUND
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parents: 1662
diff changeset
710 fprintf(stderr, "Using secondary audio buffer\n");
0
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parents:
diff changeset
711 #endif
1662
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Sam Lantinga <slouken@libsdl.org>
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712 }
0
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parents:
diff changeset
713 #ifdef DEBUG_SOUND
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diff changeset
714 else
1668
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diff changeset
715 fprintf(stderr, "Using primary audio buffer\n");
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74212992fb08 Initial revision
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parents:
diff changeset
716 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
717
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
718 /* The buffer will auto-start playing in DX5_WaitAudio() */
1701
442248d4e738 Merged DirectSound dropout fix from SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
719 lastchunk = 0;
1662
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
720 mixlen = spec->size;
0
74212992fb08 Initial revision
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parents:
diff changeset
721
74212992fb08 Initial revision
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parents:
diff changeset
722 #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
723 /* See if we can use DirectX 6 event notification */
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parents: 1662
diff changeset
724 if (CreateAudioEvent(this) == 0) {
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
725 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
726 } 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
727 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
728 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
729 #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
730 return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
731 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
732
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
733 /* vi: set ts=4 sw=4 expandtab: */