Mercurial > sdl-ios-xcode

annotate src/audio/mint/SDL_mintaudio_xbios.c @ 3821:18393b045759 SDL-ryan-multiple-audio-device

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Moved NAS audio driver to 1.3 API.
author Ryan C. Gordon <icculus@icculus.org>
date Sat, 07 Oct 2006 05:56:59 +0000
parents 1f156fd874fa
children 66fb40445587
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 /*
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25 MiNT audio driver
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26 using XBIOS functions (Falcon)
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27
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28 Patrice Mandin, Didier Méquignon
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29 */
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30
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31 #include <unistd.h>
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32 #include <support.h>
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33
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34 /* Mint includes */
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35 #include <mint/osbind.h>
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36 #include <mint/falcon.h>
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37 #include <mint/cookie.h>
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38
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39 #include "SDL_audio.h"
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40 #include "../SDL_audio_c.h"
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41 #include "../SDL_sysaudio.h"
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42
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43 #include "../../video/ataricommon/SDL_atarimxalloc_c.h"
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44
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45 #include "SDL_mintaudio.h"
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46 #include "SDL_mintaudio_dma8.h"
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47
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48 /*--- Defines ---*/
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49
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50 #define MINT_AUDIO_DRIVER_NAME "mint_xbios"
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51
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52 /* Debug print info */
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53 #define DEBUG_NAME "audio:xbios: "
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54 #if 0
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55 #define DEBUG_PRINT(what) \
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56 { \
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57 printf what; \
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58 }
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59 #else
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60 #define DEBUG_PRINT(what)
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61 #endif
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62
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63 static unsigned long cookie_snd = 0;
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64
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65 static int
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66 MINTXBIOS_Available(void)
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67 {
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68 unsigned long dummy = 0;
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69 /*SDL_MintAudio_mint_present = (Getcookie(C_MiNT, &dummy) == C_FOUND); */
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70 SDL_MintAudio_mint_present = SDL_FALSE;
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71
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72 /* We can't use XBIOS in interrupt with Magic, don't know about thread */
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73 if (Getcookie(C_MagX, &dummy) == C_FOUND) {
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74 return (0);
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75 }
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76
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77 /* Cookie _SND present ? if not, assume ST machine */
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78 if (Getcookie(C__SND, &cookie_snd) == C_NOTFOUND) {
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79 cookie_snd = SND_PSG;
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80 }
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81
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82 /* Check if we have 16 bits audio */
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83 if ((cookie_snd & SND_16BIT) == 0) {
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84 DEBUG_PRINT((DEBUG_NAME "no 16 bits sound\n"));
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85 return (0);
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86 }
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87
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88 /* Check if audio is lockable */
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89 if (Locksnd() != 1) {
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90 DEBUG_PRINT((DEBUG_NAME "audio locked by other application\n"));
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91 return (0);
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92 }
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93
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94 Unlocksnd();
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95
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96 DEBUG_PRINT((DEBUG_NAME "XBIOS audio available!\n"));
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97 return (1);
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98 }
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99
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100 static void
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101 MINTXBIOS_LockDevice(_THIS)
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102 {
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103 /* Stop replay */
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104 Buffoper(0);
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105 }
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106
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107 static void
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108 MINTXBIOS_UnlockDevice(_THIS)
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109 {
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110 /* Restart replay */
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111 Buffoper(SB_PLA_ENA | SB_PLA_RPT);
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112 }
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113
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114 static void
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115 MINTXBIOS_CloseDevice(_THIS)
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116 {
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117 if (this->hidden != NULL) {
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118 /* Stop replay */
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119 SDL_MintAudio_WaitThread();
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120 Buffoper(0);
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121
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122 if (!SDL_MintAudio_mint_present) {
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123 /* Uninstall interrupt */
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124 Jdisint(MFP_DMASOUND);
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125 }
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127 /* Wait if currently playing sound */
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128 while (SDL_MintAudio_mutex != 0) {}
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129
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130 /* Clear buffers */
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131 if (SDL_MintAudio_audiobuf[0]) {
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132 Mfree(SDL_MintAudio_audiobuf[0]);
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133 SDL_MintAudio_audiobuf[0] = SDL_MintAudio_audiobuf[1] = NULL;
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134 }
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135
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
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136 /* Unlock sound system */
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137 Unlocksnd();
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138
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
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diff changeset
139 SDL_free(this->hidden);
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140 this->hidden = NULL;
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141 }
644
594422ab8f9f Atari MiNT: added more audio drivers
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diff changeset
142 }
594422ab8f9f Atari MiNT: added more audio drivers
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parents:
diff changeset
143
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144 /* Falcon XBIOS implementation of Devconnect() is buggy with external clock */
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145 static void
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146 Devconnect2(int src, int dst, int sclk, int pre)
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147 {
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148 static const unsigned short MASK1[3] = { 0, 0x6000, 0 };
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149 static const unsigned short MASK2[4] = { 0xFFF0, 0xFF8F, 0xF0FF, 0x0FFF };
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150 static const unsigned short INDEX1[4] = { 1, 3, 5, 7 };
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151 static const unsigned short INDEX2[4] = { 0, 2, 4, 6 };
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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152 unsigned short sync_div, dev_ctrl, dest_ctrl;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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153 void *oldstack;
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154
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155 if (dst == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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156 return;
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157 }
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158
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159 oldstack = (void *) Super(0);
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160
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161 dev_ctrl = DMAAUDIO_IO.dev_ctrl;
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162 dest_ctrl = DMAAUDIO_IO.dest_ctrl;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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163 dev_ctrl &= MASK2[src];
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164
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165 if (src == ADC) {
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166 dev_ctrl |= MASK1[sclk];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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167 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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168 dev_ctrl |= (INDEX1[sclk] << (src << 4));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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169 }
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170
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171 if (dst & DMAREC) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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172 dest_ctrl &= 0xFFF0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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173 dest_ctrl |= INDEX1[src];
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174 }
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175
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176 if (dst & DSPRECV) {
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177 dest_ctrl &= 0xFF8F;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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178 dest_ctrl |= (INDEX1[src] << 4);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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179 }
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180
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181 if (dst & EXTOUT) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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182 dest_ctrl &= 0xF0FF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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183 dest_ctrl |= (INDEX1[src] << 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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184 }
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185
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186 if (dst & DAC) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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187 dev_ctrl &= 0x0FFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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188 dev_ctrl |= MASK1[sclk];
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189 dest_ctrl &= 0x0FFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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190 dest_ctrl |= (INDEX2[src] << 12);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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191 }
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192
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193 sync_div = DMAAUDIO_IO.sync_div;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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194 if (sclk == CLKEXT) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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195 pre <<= 8;
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196 sync_div &= 0xF0FF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
197 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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198 sync_div &= 0xFFF0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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199 }
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200 sync_div |= pre;
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201
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202 DMAAUDIO_IO.dev_ctrl = dev_ctrl;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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203 DMAAUDIO_IO.dest_ctrl = dest_ctrl;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
204 DMAAUDIO_IO.sync_div = sync_div;
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205
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diff changeset
206 Super(oldstack);
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207 }
185acc07127a Date: Fri, 29 Oct 2004 11:47:09 +0200
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208
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diff changeset
209 static void
3820
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diff changeset
210 MINTXBIOS_CheckExternalClock(_THIS)
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diff changeset
211 {
185acc07127a Date: Fri, 29 Oct 2004 11:47:09 +0200
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diff changeset
212 #define SIZE_BUF_CLOCK_MEASURE (44100/10)
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213
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diff changeset
214 unsigned long cookie_snd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
215 char *buffer;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
216 int i, j;
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217
1895
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diff changeset
218 /* DSP present with its GPIO port ? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
219 if (Getcookie(C__SND, &cookie_snd) == C_NOTFOUND) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
220 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
221 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
222 if ((cookie_snd & SND_DSP) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1412
diff changeset
223 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
224 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
225
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
226 buffer = Atari_SysMalloc(SIZE_BUF_CLOCK_MEASURE, MX_STRAM);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1412
diff changeset
227 if (buffer == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
228 DEBUG_PRINT((DEBUG_NAME "Not enough memory for the measure\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
229 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
230 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
231 SDL_memset(buffer, 0, SIZE_BUF_CLOCK_MEASURE);
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232
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diff changeset
233 Buffoper(0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
234 Settracks(0, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
235 Setmontracks(0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
236 Setmode(MONO8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
237 Jdisint(MFP_TIMERA);
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diff changeset
238
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
239 for (i = 0; i < 2; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
240 Gpio(GPIO_SET, 7); /* DSP port gpio outputs */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1412
diff changeset
241 Gpio(GPIO_WRITE, 2 + i); /* 22.5792/24.576 MHz for 44.1/48KHz */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
242 Devconnect2(DMAPLAY, DAC, CLKEXT, CLK50K); /* Matrix and clock source */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
243 Setbuffer(0, buffer, buffer + SIZE_BUF_CLOCK_MEASURE); /* Set buffer */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
244 Xbtimer(XB_TIMERA, 5, 38, SDL_MintAudio_XbiosInterruptMeasureClock); /* delay mode timer A, prediv /64, 1KHz */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
245 Jenabint(MFP_TIMERA);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1412
diff changeset
246 SDL_MintAudio_clocktics = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1412
diff changeset
247 Buffoper(SB_PLA_ENA);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
248 usleep(110000);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
249
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
250 if ((Buffoper(-1) & 1) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
251 if (SDL_MintAudio_clocktics) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
252 unsigned long khz;
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diff changeset
253
1895
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diff changeset
254 khz =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
255 ((SIZE_BUF_CLOCK_MEASURE /
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
256 SDL_MintAudio_clocktics) + 1) & 0xFFFFFFFE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
257 DEBUG_PRINT((DEBUG_NAME "measure %d: freq=%lu KHz\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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258 i + 1, khz));
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259
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260 if (khz == 44) {
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261 for (j = 1; j < 4; j++) {
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262 SDL_MintAudio_AddFrequency(this,
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263 MASTERCLOCK_44K
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264 /
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265 (MASTERPREDIV_FALCON
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266 * (1 << j)),
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267 MASTERCLOCK_44K,
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268 (1 << j) - 1, 2 + i);
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269 }
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270 } else if (khz == 48) {
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271 for (j = 1; j < 4; j++) {
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272 SDL_MintAudio_AddFrequency(this,
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273 MASTERCLOCK_48K
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274 /
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275 (MASTERPREDIV_FALCON
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276 * (1 << j)),
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277 MASTERCLOCK_48K,
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278 (1 << j) - 1, 2 + i);
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279 }
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280 }
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281 } else {
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282 DEBUG_PRINT((DEBUG_NAME "No measure\n"));
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283 }
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284 } else {
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285 DEBUG_PRINT((DEBUG_NAME "No SDMA clock\n"));
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286 }
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287
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288 Buffoper(0); /* stop */
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289 Jdisint(MFP_TIMERA); /* Uninstall interrupt */
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290 }
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291
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292 Mfree(buffer);
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293 }
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294
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295 static int
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296 MINTXBIOS_CheckAudio(_THIS)
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297 {
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298 int i;
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299 Uint32 extclock;
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300
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301 DEBUG_PRINT((DEBUG_NAME "asked: %d bits, ",
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302 SDL_AUDIO_BITSIZE(this->spec.format)));
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303 DEBUG_PRINT(("float=%d, ", SDL_AUDIO_ISFLOAT(this->spec.format)));
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304 DEBUG_PRINT(("signed=%d, ", SDL_AUDIO_ISSIGNED(this->spec.format)));
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305 DEBUG_PRINT(("big endian=%d, ", SDL_AUDIO_ISBIGENDIAN(this->spec.format)));
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306 DEBUG_PRINT(("channels=%d, ", this->spec.channels));
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307 DEBUG_PRINT(("freq=%d\n", this->spec.freq));
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308
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309 this->spec.format |= SDL_AUDIO_MASK_SIGNED; /* Audio is always signed */
2005
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported
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310
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311 /* clamp out int32/float32 */
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312 if (SDL_AUDIO_BITSIZE(this->spec.format) >= 16) {
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313 this->spec.format = AUDIO_S16MSB; /* Audio is always big endian */
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314 this->spec.channels = 2; /* 16 bits always stereo */
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315 } else if (this->spec.channels > 2) {
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316 this->spec.channels = 2; /* no more than stereo! */
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317 }
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318
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319 MINTAUDIO_freqcount = 0;
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320
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321 /* Add external clocks if present */
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322 MINTXBIOS_CheckExternalClock(this);
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323
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324 /* Standard clocks */
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325 for (i = 1; i < 12; i++) {
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326 /* Remove unusable Falcon codec predivisors */
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327 if ((i == 6) || (i == 8) || (i == 10)) {
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328 continue;
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329 }
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330 SDL_MintAudio_AddFrequency(this,
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331 MASTERCLOCK_FALCON1 /
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332 (MASTERPREDIV_FALCON * (i + 1)),
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333 MASTERCLOCK_FALCON1, i, -1);
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334 }
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335
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336 #if 1
1895
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337 for (i = 0; i < MINTAUDIO_freqcount; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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338 DEBUG_PRINT((DEBUG_NAME "freq %d: %lu Hz, clock %lu, prediv %d\n",
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339 i, MINTAUDIO_frequencies[i].frequency,
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340 MINTAUDIO_frequencies[i].masterclock,
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341 MINTAUDIO_frequencies[i].predivisor));
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342 }
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343 #endif
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344
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345 MINTAUDIO_numfreq = SDL_MintAudio_SearchFrequency(this, this->spec.freq);
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346 this->spec.freq = MINTAUDIO_frequencies[MINTAUDIO_numfreq].frequency;
644
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347
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348 DEBUG_PRINT((DEBUG_NAME "obtained: %d bits, ",
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349 SDL_AUDIO_BITSIZE(this->spec.format)));
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350 DEBUG_PRINT(("float=%d, ", SDL_AUDIO_ISFLOAT(this->spec.format)));
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351 DEBUG_PRINT(("signed=%d, ", SDL_AUDIO_ISSIGNED(this->spec.format)));
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352 DEBUG_PRINT(("big endian=%d, ", SDL_AUDIO_ISBIGENDIAN(this->spec.format)));
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353 DEBUG_PRINT(("channels=%d, ", this->spec.channels));
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354 DEBUG_PRINT(("freq=%d\n", this->spec.freq));
644
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355
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356 return 0;
644
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357 }
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diff changeset
358
1895
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359 static void
3820
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360 MINTXBIOS_InitAudio(_THIS)
644
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361 {
1895
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362 int channels_mode, dmaclock, prediv;
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363 void *buffer;
644
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364
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365 /* Stop currently playing sound */
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366 SDL_MintAudio_quit_thread = SDL_FALSE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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367 SDL_MintAudio_thread_finished = SDL_TRUE;
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368 SDL_MintAudio_WaitThread();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
369 Buffoper(0);
644
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370
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371 /* Set replay tracks */
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372 Settracks(0, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
373 Setmontracks(0);
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diff changeset
374
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
375 /* Select replay format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
376 channels_mode = STEREO16;
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377 switch (SDL_AUDIO_BITSIZE(this->spec.format)) {
1895
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diff changeset
378 case 8:
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Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
379 if (this->spec.channels == 2) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
380 channels_mode = STEREO8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
381 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
382 channels_mode = MONO8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
383 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
384 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
385 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
386 if (Setmode(channels_mode) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
387 DEBUG_PRINT((DEBUG_NAME "Setmode() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
388 }
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
389
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
390 dmaclock = MINTAUDIO_frequencies[MINTAUDIO_numfreq].masterclock;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
391 prediv = MINTAUDIO_frequencies[MINTAUDIO_numfreq].predivisor;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
392 if (MINTAUDIO_frequencies[MINTAUDIO_numfreq].gpio_bits != -1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
393 Gpio(GPIO_SET, 7); /* DSP port gpio outputs */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
394 Gpio(GPIO_WRITE, MINTAUDIO_frequencies[MINTAUDIO_numfreq].gpio_bits);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
395 Devconnect2(DMAPLAY, DAC | EXTOUT, CLKEXT, prediv);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
396 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
397 Devconnect2(DMAPLAY, DAC, CLK25M, prediv);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
398 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
399
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
400 /* Set buffer */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
401 buffer = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf];
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
402 if (Setbuffer(0, buffer, buffer + this->spec.size) < 0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
403 DEBUG_PRINT((DEBUG_NAME "Setbuffer() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
404 }
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
405
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
406 if (SDL_MintAudio_mint_present) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
407 SDL_MintAudio_thread_pid = tfork(SDL_MintAudio_Thread, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
408 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
409 /* Install interrupt */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
410 Jdisint(MFP_DMASOUND);
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2027
diff changeset
411 /*Xbtimer(XB_TIMERA, 8, 1, SDL_MintAudio_XbiosInterrupt); */
2022
649e9ac39f74 Disable MiNT thread usage and use hw access for updating DMA audio pointers
Patrice Mandin <patmandin@gmail.com>
parents: 2005
diff changeset
412 Xbtimer(XB_TIMERA, 8, 1, SDL_MintAudio_Dma8Interrupt);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
413 Jenabint(MFP_DMASOUND);
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
414
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
415 if (Setinterrupt(SI_TIMERA, SI_PLAY) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
416 DEBUG_PRINT((DEBUG_NAME "Setinterrupt() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
417 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
418 }
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
419
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
420 /* Go */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
421 Buffoper(SB_PLA_ENA | SB_PLA_RPT);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
422 DEBUG_PRINT((DEBUG_NAME "hardware initialized\n"));
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
423 }
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
424
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
425 static int
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
426 MINTXBIOS_OpenDevice(_THIS, const char *devname, int iscapture)
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
427 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
428 /* Lock sound system */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
429 if (Locksnd() != 1) {
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
430 SDL_SetError("MINTXBIOS_OpenAudio: Audio system already in use");
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
431 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
432 }
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
433
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
434 SDL_MintAudio_device = this;
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
435
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
436 /* Check audio capabilities */
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
437 if (MINTXBIOS_CheckAudio(this) == -1) {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
438 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
439 }
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
440
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
441 /* Initialize all variables that we clean on shutdown */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
442 this->hidden = (struct SDL_PrivateAudioData *)
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
443 SDL_malloc((sizeof *this->hidden));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
444 if (this->hidden == NULL) {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
445 SDL_OutOfMemory();
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
446 return 0;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
447 }
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
448 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
449
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
450 SDL_CalculateAudioSpec(&this->spec);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
451
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
452 /* Allocate memory for audio buffers in DMA-able RAM */
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
453 DEBUG_PRINT((DEBUG_NAME "buffer size=%d\n", this->spec.size));
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
454
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
455 SDL_MintAudio_audiobuf[0] = Atari_SysMalloc(this->spec.size * 2, MX_STRAM);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
456 if (SDL_MintAudio_audiobuf[0] == NULL) {
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
457 SDL_free(this->hidden);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
458 this->hidden = NULL;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
459 SDL_OutOfMemory();
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
460 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
461 }
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
462 SDL_MintAudio_audiobuf[1] = SDL_MintAudio_audiobuf[0] + this->spec.size;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
463 SDL_MintAudio_numbuf = 0;
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
464 SDL_memset(SDL_MintAudio_audiobuf[0],this->spec.silence,this->spec.size*2);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
465 SDL_MintAudio_audiosize = this->spec.size;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
466 SDL_MintAudio_mutex = 0;
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
467
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
468 DEBUG_PRINT((DEBUG_NAME "buffer 0 at 0x%08x\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
469 SDL_MintAudio_audiobuf[0]));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
470 DEBUG_PRINT((DEBUG_NAME "buffer 1 at 0x%08x\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
471 SDL_MintAudio_audiobuf[1]));
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
472
2027
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 2022
diff changeset
473 SDL_MintAudio_CheckFpu();
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 2022
diff changeset
474
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
475 /* Setup audio hardware */
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
476 MINTXBIOS_InitAudio(this);
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
477
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
478 return 1; /* good to go. */
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
479 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
480
3820
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
481 static int
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
482 MINTXBIOS_Init(SDL_AudioDriverImpl *impl)
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
483 {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
484 /* Set the function pointers */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
485 impl->OpenDevice = MINTXBIOS_OpenDevice;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
486 impl->CloseDevice = MINTXBIOS_CloseDevice;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
487 impl->LockAudio = MINTXBIOS_LockAudio;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
488 impl->UnlockAudio = MINTXBIOS_UnlockAudio;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
489 impl->OnlyHasDefaultOutputDevice = 1;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
490 impl->ProvidesOwnCallbackThread = 1;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
491 impl->SkipMixerLock = 1;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
492
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
493 return 1;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
494 }
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
495
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
496 AudioBootStrap MINTAUDIO_XBIOS_bootstrap = {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
497 MINT_AUDIO_DRIVER_NAME, "MiNT XBIOS audio driver",
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
498 MINTXBIOS_Available, MINTXBIOS_Init, 0
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
499 };
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
500
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1412
diff changeset
501 /* vi: set ts=4 sw=4 expandtab: */