annotate src/audio/windx5/SDL_dx5audio.c @ 4322:a8e5b518e194 SDL-1.2

Forcibly disabled MMX mixers. Hopefully fixes Bugzilla #649.
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 12 Oct 2009 08:58:12 +0000
parents a1b03ba2fcd0
children
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 Audio_Available(void)
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52 {
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53 HINSTANCE DSoundDLL;
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54 int dsound_ok;
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55
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56 /* Version check DSOUND.DLL (Is DirectX okay?) */
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57 dsound_ok = 0;
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58 DSoundDLL = LoadLibrary(TEXT("DSOUND.DLL"));
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59 if ( DSoundDLL != NULL ) {
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60 /* We just use basic DirectSound, we're okay */
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61 /* Yay! */
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62 /* Unfortunately, the sound drivers on NT have
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63 higher latencies than the audio buffers used
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64 by many SDL applications, so there are gaps
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65 in the audio - it sounds terrible. Punt for now.
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66 */
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67 OSVERSIONINFO ver;
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68 ver.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
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69 GetVersionEx(&ver);
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70 switch (ver.dwPlatformId) {
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71 case VER_PLATFORM_WIN32_NT:
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72 if ( ver.dwMajorVersion > 4 ) {
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73 /* Win2K */
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74 dsound_ok = 1;
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75 } else {
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76 /* WinNT */
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77 dsound_ok = 0;
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78 }
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79 break;
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80 default:
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81 /* Win95 or Win98 */
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82 dsound_ok = 1;
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83 break;
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84 }
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85 /* Now check for DirectX 5 or better - otherwise
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86 * we will fail later in DX5_OpenAudio without a chance
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87 * to fall back to the DIB driver. */
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88 if (dsound_ok) {
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89 /* DirectSoundCaptureCreate was added in DX5 */
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90 if (!GetProcAddress(DSoundDLL, TEXT("DirectSoundCaptureCreate")))
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91 dsound_ok = 0;
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92
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93 }
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94 /* Clean up.. */
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95 FreeLibrary(DSoundDLL);
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96 }
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97 return(dsound_ok);
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98 }
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99
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100 /* Functions for loading the DirectX functions dynamically */
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101 static HINSTANCE DSoundDLL = NULL;
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102
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103 static void DX5_Unload(void)
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104 {
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105 if ( DSoundDLL != NULL ) {
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106 FreeLibrary(DSoundDLL);
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107 DSoundCreate = NULL;
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108 DSoundDLL = NULL;
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109 }
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110 }
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111 static int DX5_Load(void)
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112 {
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113 int status;
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114
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115 DX5_Unload();
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116 DSoundDLL = LoadLibrary(TEXT("DSOUND.DLL"));
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117 if ( DSoundDLL != NULL ) {
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118 DSoundCreate = (void *)GetProcAddress(DSoundDLL,
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119 TEXT("DirectSoundCreate"));
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120 }
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121 if ( DSoundDLL && DSoundCreate ) {
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122 status = 0;
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123 } else {
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124 DX5_Unload();
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125 status = -1;
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126 }
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127 return status;
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128 }
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129
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130 static void Audio_DeleteDevice(SDL_AudioDevice *device)
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131 {
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132 DX5_Unload();
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133 SDL_free(device->hidden);
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134 SDL_free(device);
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135 }
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136
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137 static SDL_AudioDevice *Audio_CreateDevice(int devindex)
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138 {
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139 SDL_AudioDevice *this;
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140
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141 /* Load DirectX */
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142 if ( DX5_Load() < 0 ) {
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143 return(NULL);
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144 }
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145
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146 /* Initialize all variables that we clean on shutdown */
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147 this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
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148 if ( this ) {
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149 SDL_memset(this, 0, (sizeof *this));
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150 this->hidden = (struct SDL_PrivateAudioData *)
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151 SDL_malloc((sizeof *this->hidden));
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152 }
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153 if ( (this == NULL) || (this->hidden == NULL) ) {
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154 SDL_OutOfMemory();
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155 if ( this ) {
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156 SDL_free(this);
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157 }
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158 return(0);
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159 }
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160 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
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161
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162 /* Set the function pointers */
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163 this->OpenAudio = DX5_OpenAudio;
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164 this->ThreadInit = DX5_ThreadInit;
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parents:
diff changeset
165 this->WaitAudio = DX5_WaitAudio_BusyWait;
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parents:
diff changeset
166 this->PlayAudio = DX5_PlayAudio;
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parents:
diff changeset
167 this->GetAudioBuf = DX5_GetAudioBuf;
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parents:
diff changeset
168 this->WaitDone = DX5_WaitDone;
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parents:
diff changeset
169 this->CloseAudio = DX5_CloseAudio;
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parents:
diff changeset
170
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diff changeset
171 this->free = Audio_DeleteDevice;
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parents:
diff changeset
172
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parents:
diff changeset
173 return this;
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parents:
diff changeset
174 }
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parents:
diff changeset
175
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parents:
diff changeset
176 AudioBootStrap DSOUND_bootstrap = {
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parents:
diff changeset
177 "dsound", "Win95/98/2000 DirectSound",
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parents:
diff changeset
178 Audio_Available, Audio_CreateDevice
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parents:
diff changeset
179 };
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parents:
diff changeset
180
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parents:
diff changeset
181 static void SetDSerror(const char *function, int code)
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parents:
diff changeset
182 {
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diff changeset
183 static const char *error;
453
a6fa62b1be09 Updated for embedded Visual C++ 4.0
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parents: 375
diff changeset
184 static char errbuf[1024];
0
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diff changeset
185
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diff changeset
186 errbuf[0] = 0;
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parents:
diff changeset
187 switch (code) {
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parents:
diff changeset
188 case E_NOINTERFACE:
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parents:
diff changeset
189 error =
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diff changeset
190 "Unsupported interface\n-- Is DirectX 5.0 or later installed?";
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parents:
diff changeset
191 break;
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parents:
diff changeset
192 case DSERR_ALLOCATED:
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parents:
diff changeset
193 error = "Audio device in use";
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parents:
diff changeset
194 break;
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parents:
diff changeset
195 case DSERR_BADFORMAT:
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parents:
diff changeset
196 error = "Unsupported audio format";
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diff changeset
197 break;
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parents:
diff changeset
198 case DSERR_BUFFERLOST:
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diff changeset
199 error = "Mixing buffer was lost";
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parents:
diff changeset
200 break;
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parents:
diff changeset
201 case DSERR_CONTROLUNAVAIL:
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parents:
diff changeset
202 error = "Control requested is not available";
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parents:
diff changeset
203 break;
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parents:
diff changeset
204 case DSERR_INVALIDCALL:
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parents:
diff changeset
205 error = "Invalid call for the current state";
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parents:
diff changeset
206 break;
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parents:
diff changeset
207 case DSERR_INVALIDPARAM:
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parents:
diff changeset
208 error = "Invalid parameter";
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parents:
diff changeset
209 break;
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parents:
diff changeset
210 case DSERR_NODRIVER:
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parents:
diff changeset
211 error = "No audio device found";
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parents:
diff changeset
212 break;
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parents:
diff changeset
213 case DSERR_OUTOFMEMORY:
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diff changeset
214 error = "Out of memory";
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parents:
diff changeset
215 break;
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parents:
diff changeset
216 case DSERR_PRIOLEVELNEEDED:
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parents:
diff changeset
217 error = "Caller doesn't have priority";
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parents:
diff changeset
218 break;
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parents:
diff changeset
219 case DSERR_UNSUPPORTED:
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parents:
diff changeset
220 error = "Function not supported";
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
221 break;
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parents:
diff changeset
222 default:
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
223 SDL_snprintf(errbuf, SDL_arraysize(errbuf),
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
224 "%s: Unknown DirectSound error: 0x%x",
0
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parents:
diff changeset
225 function, code);
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parents:
diff changeset
226 break;
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parents:
diff changeset
227 }
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parents:
diff changeset
228 if ( ! errbuf[0] ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
229 SDL_snprintf(errbuf, SDL_arraysize(errbuf), "%s: %s", function, error);
0
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parents:
diff changeset
230 }
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parents:
diff changeset
231 SDL_SetError("%s", errbuf);
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parents:
diff changeset
232 return;
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parents:
diff changeset
233 }
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parents:
diff changeset
234
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parents:
diff changeset
235 /* DirectSound needs to be associated with a window */
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parents:
diff changeset
236 static HWND mainwin = NULL;
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parents:
diff changeset
237 /* */
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parents:
diff changeset
238 void DX5_SoundFocus(HWND hwnd)
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parents:
diff changeset
239 {
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parents:
diff changeset
240 mainwin = hwnd;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
241 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243 static void DX5_ThreadInit(_THIS)
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parents:
diff changeset
244 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245 SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
246 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 static void DX5_WaitAudio_BusyWait(_THIS)
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parents:
diff changeset
249 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
250 DWORD status;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
251 DWORD cursor, junk;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
252 HRESULT result;
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parents:
diff changeset
253
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 /* Semi-busy wait, since we have no way of getting play notification
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 on a primary mixing buffer located in hardware (DirectX 5.0)
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parents:
diff changeset
256 */
1877
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
257 result = IDirectSoundBuffer_GetCurrentPosition(mixbuf, &junk, &cursor);
0
74212992fb08 Initial revision
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parents:
diff changeset
258 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
259 if ( result == DSERR_BUFFERLOST ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
260 IDirectSoundBuffer_Restore(mixbuf);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
261 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
262 #ifdef DEBUG_SOUND
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 SetDSerror("DirectSound GetCurrentPosition", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 #endif
74212992fb08 Initial revision
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parents:
diff changeset
265 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267
1877
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
268 while ( (cursor/mixlen) == lastchunk ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 /* FIXME: find out how much time is left and sleep that long */
1877
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
270 SDL_Delay(1);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 /* Try to restore a lost sound buffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 IDirectSoundBuffer_GetStatus(mixbuf, &status);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 if ( (status&DSBSTATUS_BUFFERLOST) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 IDirectSoundBuffer_Restore(mixbuf);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 IDirectSoundBuffer_GetStatus(mixbuf, &status);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 if ( (status&DSBSTATUS_BUFFERLOST) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 if ( ! (status&DSBSTATUS_PLAYING) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 result = IDirectSoundBuffer_Play(mixbuf, 0, 0, DSBPLAY_LOOPING);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
283 if ( result == DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284 continue;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 #ifdef DEBUG_SOUND
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287 SetDSerror("DirectSound Play", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 /* Find out where we are playing */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 result = IDirectSoundBuffer_GetCurrentPosition(mixbuf,
1877
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
294 &junk, &cursor);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 SetDSerror("DirectSound GetCurrentPosition", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302 #ifdef USE_POSITION_NOTIFY
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 static void DX6_WaitAudio_EventWait(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305 DWORD status;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 HRESULT result;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 /* Try to restore a lost sound buffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 IDirectSoundBuffer_GetStatus(mixbuf, &status);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 if ( (status&DSBSTATUS_BUFFERLOST) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 IDirectSoundBuffer_Restore(mixbuf);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 IDirectSoundBuffer_GetStatus(mixbuf, &status);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 if ( (status&DSBSTATUS_BUFFERLOST) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
315 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
316 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 if ( ! (status&DSBSTATUS_PLAYING) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
318 result = IDirectSoundBuffer_Play(mixbuf, 0, 0, DSBPLAY_LOOPING);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
319 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320 #ifdef DEBUG_SOUND
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
321 SetDSerror("DirectSound Play", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
323 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
324 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
326 WaitForSingleObject(audio_event, INFINITE);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
327 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
328 #endif /* USE_POSITION_NOTIFY */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
329
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
330 static void DX5_PlayAudio(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
331 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
332 /* Unlock the buffer, allowing it to play */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333 if ( locked_buf ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
334 IDirectSoundBuffer_Unlock(mixbuf, locked_buf, mixlen, NULL, 0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
335 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336
74212992fb08 Initial revision
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337 }
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parents:
diff changeset
338
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parents:
diff changeset
339 static Uint8 *DX5_GetAudioBuf(_THIS)
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340 {
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diff changeset
341 DWORD cursor, junk;
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parents:
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342 HRESULT result;
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parents:
diff changeset
343 DWORD rawlen;
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parents:
diff changeset
344
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diff changeset
345 /* Figure out which blocks to fill next */
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346 locked_buf = NULL;
1877
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parents: 1402
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347 result = IDirectSoundBuffer_GetCurrentPosition(mixbuf, &junk, &cursor);
0
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diff changeset
348 if ( result == DSERR_BUFFERLOST ) {
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diff changeset
349 IDirectSoundBuffer_Restore(mixbuf);
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350 result = IDirectSoundBuffer_GetCurrentPosition(mixbuf,
1877
9b02a5b97f79 Fixed bug #69
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parents: 1402
diff changeset
351 &junk, &cursor);
0
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diff changeset
352 }
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parents:
diff changeset
353 if ( result != DS_OK ) {
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diff changeset
354 SetDSerror("DirectSound GetCurrentPosition", result);
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parents:
diff changeset
355 return(NULL);
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parents:
diff changeset
356 }
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parents:
diff changeset
357 cursor /= mixlen;
1877
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parents: 1402
diff changeset
358 #ifdef DEBUG_SOUND
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parents: 1402
diff changeset
359 /* Detect audio dropouts */
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parents: 1402
diff changeset
360 { DWORD spot = cursor;
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parents: 1402
diff changeset
361 if ( spot < lastchunk ) {
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parents: 1402
diff changeset
362 spot += NUM_BUFFERS;
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parents: 1402
diff changeset
363 }
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
364 if ( spot > lastchunk+1 ) {
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
365 fprintf(stderr, "Audio dropout, missed %d fragments\n",
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
366 (spot - (lastchunk+1)));
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parents: 1402
diff changeset
367 }
9b02a5b97f79 Fixed bug #69
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parents: 1402
diff changeset
368 }
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
369 #endif
9b02a5b97f79 Fixed bug #69
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parents: 1402
diff changeset
370 lastchunk = cursor;
0
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diff changeset
371 cursor = (cursor+1)%NUM_BUFFERS;
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parents:
diff changeset
372 cursor *= mixlen;
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373
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diff changeset
374 /* Lock the audio buffer */
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375 result = IDirectSoundBuffer_Lock(mixbuf, cursor, mixlen,
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376 (LPVOID *)&locked_buf, &rawlen, NULL, &junk, 0);
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parents:
diff changeset
377 if ( result == DSERR_BUFFERLOST ) {
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parents:
diff changeset
378 IDirectSoundBuffer_Restore(mixbuf);
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parents:
diff changeset
379 result = IDirectSoundBuffer_Lock(mixbuf, cursor, mixlen,
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parents:
diff changeset
380 (LPVOID *)&locked_buf, &rawlen, NULL, &junk, 0);
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parents:
diff changeset
381 }
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parents:
diff changeset
382 if ( result != DS_OK ) {
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parents:
diff changeset
383 SetDSerror("DirectSound Lock", result);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
384 return(NULL);
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parents:
diff changeset
385 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 return(locked_buf);
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parents:
diff changeset
387 }
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parents:
diff changeset
388
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parents:
diff changeset
389 static void DX5_WaitDone(_THIS)
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parents:
diff changeset
390 {
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diff changeset
391 Uint8 *stream;
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parents:
diff changeset
392
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parents:
diff changeset
393 /* Wait for the playing chunk to finish */
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parents:
diff changeset
394 stream = this->GetAudioBuf(this);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395 if ( stream != NULL ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
396 SDL_memset(stream, silence, mixlen);
0
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parents:
diff changeset
397 this->PlayAudio(this);
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parents:
diff changeset
398 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399 this->WaitAudio(this);
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parents:
diff changeset
400
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 /* Stop the looping sound buffer */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 IDirectSoundBuffer_Stop(mixbuf);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 static void DX5_CloseAudio(_THIS)
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407 if ( sound != NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
408 if ( mixbuf != NULL ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 /* Clean up the audio buffer */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410 IDirectSoundBuffer_Release(mixbuf);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 mixbuf = NULL;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413 if ( audio_event != NULL ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414 CloseHandle(audio_event);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415 audio_event = NULL;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
417 IDirectSound_Release(sound);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 sound = NULL;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
421
469
a1284fd544aa Removed unused function
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
422 #ifdef USE_PRIMARY_BUFFER
0
74212992fb08 Initial revision
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parents:
diff changeset
423 /* This function tries to create a primary audio buffer, and returns the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
424 number of audio chunks available in the created buffer.
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
425 */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426 static int CreatePrimary(LPDIRECTSOUND sndObj, HWND focus,
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parents:
diff changeset
427 LPDIRECTSOUNDBUFFER *sndbuf, WAVEFORMATEX *wavefmt, Uint32 chunksize)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
428 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
429 HRESULT result;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
430 DSBUFFERDESC format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
431 DSBCAPS caps;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
432 int numchunks;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
433
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
434 /* Try to set primary mixing privileges */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
435 result = IDirectSound_SetCooperativeLevel(sndObj, focus,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
436 DSSCL_WRITEPRIMARY);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
437 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
438 #ifdef DEBUG_SOUND
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
439 SetDSerror("DirectSound SetCooperativeLevel", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
440 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
441 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
442 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
443
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
444 /* Try to create the primary buffer */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
445 SDL_memset(&format, 0, sizeof(format));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
446 format.dwSize = sizeof(format);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
447 format.dwFlags=(DSBCAPS_PRIMARYBUFFER|DSBCAPS_GETCURRENTPOSITION2);
217
add626b825bb Use the sticky focus flag so audio isn't muted when application is switched.
Sam Lantinga <slouken@libsdl.org>
parents: 118
diff changeset
448 format.dwFlags |= DSBCAPS_STICKYFOCUS;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
449 #ifdef USE_POSITION_NOTIFY
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
450 format.dwFlags |= DSBCAPS_CTRLPOSITIONNOTIFY;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
451 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
452 result = IDirectSound_CreateSoundBuffer(sndObj, &format, sndbuf, NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
453 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
454 #ifdef DEBUG_SOUND
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
455 SetDSerror("DirectSound CreateSoundBuffer", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
456 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
457 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
458 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
459
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
460 /* Check the size of the fragment buffer */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
461 SDL_memset(&caps, 0, sizeof(caps));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
462 caps.dwSize = sizeof(caps);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
463 result = IDirectSoundBuffer_GetCaps(*sndbuf, &caps);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
464 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
465 #ifdef DEBUG_SOUND
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
466 SetDSerror("DirectSound GetCaps", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
467 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
468 IDirectSoundBuffer_Release(*sndbuf);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
469 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
470 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
471 if ( (chunksize > caps.dwBufferBytes) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
472 ((caps.dwBufferBytes%chunksize) != 0) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
473 /* The primary buffer size is not a multiple of 'chunksize'
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
474 -- this hopefully doesn't happen when 'chunksize' is a
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
475 power of 2.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
476 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
477 IDirectSoundBuffer_Release(*sndbuf);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
478 SDL_SetError(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
479 "Primary buffer size is: %d, cannot break it into chunks of %d bytes\n",
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
480 caps.dwBufferBytes, chunksize);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
481 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
483 numchunks = (caps.dwBufferBytes/chunksize);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
484
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
485 /* Set the primary audio format */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
486 result = IDirectSoundBuffer_SetFormat(*sndbuf, wavefmt);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
487 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
488 #ifdef DEBUG_SOUND
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
489 SetDSerror("DirectSound SetFormat", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
490 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
491 IDirectSoundBuffer_Release(*sndbuf);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
492 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
493 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
494 return(numchunks);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
495 }
469
a1284fd544aa Removed unused function
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
496 #endif /* USE_PRIMARY_BUFFER */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
497
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
498 /* This function tries to create a secondary audio buffer, and returns the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
499 number of audio chunks available in the created buffer.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
500 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
501 static int CreateSecondary(LPDIRECTSOUND sndObj, HWND focus,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
502 LPDIRECTSOUNDBUFFER *sndbuf, WAVEFORMATEX *wavefmt, Uint32 chunksize)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
503 {
1877
9b02a5b97f79 Fixed bug #69
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
504 const int numchunks = 8;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
505 HRESULT result;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
506 DSBUFFERDESC format;
118
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
507 LPVOID pvAudioPtr1, pvAudioPtr2;
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
508 DWORD dwAudioBytes1, dwAudioBytes2;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
509
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
510 /* Try to set primary mixing privileges */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
511 if ( focus ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
512 result = IDirectSound_SetCooperativeLevel(sndObj,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
513 focus, DSSCL_PRIORITY);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
514 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
515 result = IDirectSound_SetCooperativeLevel(sndObj,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
516 GetDesktopWindow(), DSSCL_NORMAL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
517 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
519 #ifdef DEBUG_SOUND
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520 SetDSerror("DirectSound SetCooperativeLevel", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525 /* Try to create the secondary buffer */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
526 SDL_memset(&format, 0, sizeof(format));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
527 format.dwSize = sizeof(format);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528 format.dwFlags = DSBCAPS_GETCURRENTPOSITION2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
529 #ifdef USE_POSITION_NOTIFY
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
530 format.dwFlags |= DSBCAPS_CTRLPOSITIONNOTIFY;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
531 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
532 if ( ! focus ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
533 format.dwFlags |= DSBCAPS_GLOBALFOCUS;
217
add626b825bb Use the sticky focus flag so audio isn't muted when application is switched.
Sam Lantinga <slouken@libsdl.org>
parents: 118
diff changeset
534 } else {
add626b825bb Use the sticky focus flag so audio isn't muted when application is switched.
Sam Lantinga <slouken@libsdl.org>
parents: 118
diff changeset
535 format.dwFlags |= DSBCAPS_STICKYFOCUS;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
536 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
537 format.dwBufferBytes = numchunks*chunksize;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
538 if ( (format.dwBufferBytes < DSBSIZE_MIN) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
539 (format.dwBufferBytes > DSBSIZE_MAX) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
540 SDL_SetError("Sound buffer size must be between %d and %d",
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
541 DSBSIZE_MIN/numchunks, DSBSIZE_MAX/numchunks);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
542 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
543 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
544 format.dwReserved = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
545 format.lpwfxFormat = wavefmt;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
546 result = IDirectSound_CreateSoundBuffer(sndObj, &format, sndbuf, NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
547 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
548 SetDSerror("DirectSound CreateSoundBuffer", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
549 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
550 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
551 IDirectSoundBuffer_SetFormat(*sndbuf, wavefmt);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
552
118
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
553 /* Silence the initial audio buffer */
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
554 result = IDirectSoundBuffer_Lock(*sndbuf, 0, format.dwBufferBytes,
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
555 (LPVOID *)&pvAudioPtr1, &dwAudioBytes1,
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
556 (LPVOID *)&pvAudioPtr2, &dwAudioBytes2,
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
557 DSBLOCK_ENTIREBUFFER);
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
558 if ( result == DS_OK ) {
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
559 if ( wavefmt->wBitsPerSample == 8 ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
560 SDL_memset(pvAudioPtr1, 0x80, dwAudioBytes1);
118
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
561 } else {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
562 SDL_memset(pvAudioPtr1, 0x00, dwAudioBytes1);
118
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
563 }
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
564 IDirectSoundBuffer_Unlock(*sndbuf,
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
565 (LPVOID)pvAudioPtr1, dwAudioBytes1,
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
566 (LPVOID)pvAudioPtr2, dwAudioBytes2);
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
567 }
7c47e511459d Fix noise when starting audio under DX5 (thanks Jesse!)
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
568
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
569 /* We're ready to go */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
570 return(numchunks);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
571 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
572
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
573 /* This function tries to set position notify events on the mixing buffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
574 #ifdef USE_POSITION_NOTIFY
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
575 static int CreateAudioEvent(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
576 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
577 LPDIRECTSOUNDNOTIFY notify;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
578 DSBPOSITIONNOTIFY *notify_positions;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
579 int i, retval;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
580 HRESULT result;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
581
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
582 /* Default to fail on exit */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
583 retval = -1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
584 notify = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
585
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
586 /* Query for the interface */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
587 result = IDirectSoundBuffer_QueryInterface(mixbuf,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
588 &IID_IDirectSoundNotify, (void *)&notify);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
589 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
590 goto done;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
591 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
592
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
593 /* Allocate the notify structures */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
594 notify_positions = (DSBPOSITIONNOTIFY *)SDL_malloc(NUM_BUFFERS*
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
595 sizeof(*notify_positions));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
596 if ( notify_positions == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
597 goto done;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
598 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
599
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
600 /* Create the notify event */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
601 audio_event = CreateEvent(NULL, FALSE, FALSE, NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
602 if ( audio_event == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
603 goto done;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
604 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
605
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
606 /* Set up the notify structures */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
607 for ( i=0; i<NUM_BUFFERS; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
608 notify_positions[i].dwOffset = i*mixlen;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
609 notify_positions[i].hEventNotify = audio_event;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
610 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
611 result = IDirectSoundNotify_SetNotificationPositions(notify,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
612 NUM_BUFFERS, notify_positions);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
613 if ( result == DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
614 retval = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
615 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
616 done:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
617 if ( notify != NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
618 IDirectSoundNotify_Release(notify);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
619 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
620 return(retval);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
621 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
622 #endif /* USE_POSITION_NOTIFY */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
623
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
624 static int DX5_OpenAudio(_THIS, SDL_AudioSpec *spec)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
625 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
626 HRESULT result;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
627 WAVEFORMATEX waveformat;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
628
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
629 /* Set basic WAVE format parameters */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
630 SDL_memset(&waveformat, 0, sizeof(waveformat));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
631 waveformat.wFormatTag = WAVE_FORMAT_PCM;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
632
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
633 /* Determine the audio parameters from the AudioSpec */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
634 switch ( spec->format & 0xFF ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
635 case 8:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
636 /* Unsigned 8 bit audio data */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
637 spec->format = AUDIO_U8;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
638 silence = 0x80;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
639 waveformat.wBitsPerSample = 8;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
640 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
641 case 16:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
642 /* Signed 16 bit audio data */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
643 spec->format = AUDIO_S16;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
644 silence = 0x00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
645 waveformat.wBitsPerSample = 16;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
646 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
647 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
648 SDL_SetError("Unsupported audio format");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
649 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
650 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
651 waveformat.nChannels = spec->channels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
652 waveformat.nSamplesPerSec = spec->freq;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
653 waveformat.nBlockAlign =
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
654 waveformat.nChannels * (waveformat.wBitsPerSample/8);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
655 waveformat.nAvgBytesPerSec =
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
656 waveformat.nSamplesPerSec * waveformat.nBlockAlign;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
657
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
658 /* Update the fragment size as size in bytes */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
659 SDL_CalculateAudioSpec(spec);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
660
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
661 /* Open the audio device */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
662 result = DSoundCreate(NULL, &sound, NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
663 if ( result != DS_OK ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
664 SetDSerror("DirectSoundCreate", result);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
665 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
666 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
667
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
668 /* Create the audio buffer to which we write */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
669 NUM_BUFFERS = -1;
375
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670 #ifdef USE_PRIMARY_BUFFER
0
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671 if ( mainwin ) {
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672 NUM_BUFFERS = CreatePrimary(sound, mainwin, &mixbuf,
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673 &waveformat, spec->size);
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674 }
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675 #endif /* USE_PRIMARY_BUFFER */
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676 if ( NUM_BUFFERS < 0 ) {
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677 NUM_BUFFERS = CreateSecondary(sound, mainwin, &mixbuf,
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678 &waveformat, spec->size);
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679 if ( NUM_BUFFERS < 0 ) {
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680 return(-1);
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681 }
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682 #ifdef DEBUG_SOUND
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683 fprintf(stderr, "Using secondary audio buffer\n");
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684 #endif
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685 }
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686 #ifdef DEBUG_SOUND
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687 else
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688 fprintf(stderr, "Using primary audio buffer\n");
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689 #endif
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690
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691 /* The buffer will auto-start playing in DX5_WaitAudio() */
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692 lastchunk = 0;
0
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693 mixlen = spec->size;
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694
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695 #ifdef USE_POSITION_NOTIFY
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696 /* See if we can use DirectX 6 event notification */
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697 if ( CreateAudioEvent(this) == 0 ) {
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698 this->WaitAudio = DX6_WaitAudio_EventWait;
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699 } else {
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700 this->WaitAudio = DX5_WaitAudio_BusyWait;
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701 }
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702 #endif
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703 return(0);
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704 }
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705