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5131 | clevermous | 1 | /* |
2 | Copyright (C) 1996-1997 Id Software, Inc. |
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3 | |||
4 | This program is free software; you can redistribute it and/or |
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5 | modify it under the terms of the GNU General Public License |
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6 | as published by the Free Software Foundation; either version 2 |
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7 | of the License, or (at your option) any later version. |
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8 | |||
9 | This program is distributed in the hope that it will be useful, |
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10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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12 | |||
13 | See the GNU General Public License for more details. |
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14 | |||
15 | You should have received a copy of the GNU General Public License |
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16 | along with this program; if not, write to the Free Software |
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17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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18 | |||
19 | */ |
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20 | // Quake is a trademark of Id Software, Inc., (c) 1996 Id Software, Inc. All |
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21 | // rights reserved. |
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22 | |||
23 | #include |
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24 | #include "quakedef.h" |
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25 | #include "dosisms.h" |
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26 | |||
27 | extern cvar_t bgmvolume; |
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28 | |||
29 | #define ADDRESS_MODE_HSG 0 |
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30 | #define ADDRESS_MODE_RED_BOOK 1 |
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31 | |||
32 | #define STATUS_ERROR_BIT 0x8000 |
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33 | #define STATUS_BUSY_BIT 0x0200 |
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34 | #define STATUS_DONE_BIT 0x0100 |
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35 | #define STATUS_ERROR_MASK 0x00ff |
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36 | |||
37 | #define ERROR_WRITE_PROTECT 0 |
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38 | #define ERROR_UNKNOWN_UNIT 1 |
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39 | #define ERROR_DRIVE_NOT_READY 2 |
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40 | #define ERROR_UNKNOWN_COMMAND 3 |
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41 | #define ERROR_CRC_ERROR 4 |
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42 | #define ERROR_BAD_REQUEST_LEN 5 |
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43 | #define ERROR_SEEK_ERROR 6 |
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44 | #define ERROR_UNKNOWN_MEDIA 7 |
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45 | #define ERROR_SECTOR_NOT_FOUND 8 |
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46 | #define ERROR_OUT_OF_PAPER 9 |
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47 | #define ERROR_WRITE_FAULT 10 |
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48 | #define ERROR_READ_FAULT 11 |
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49 | #define ERROR_GENERAL_FAILURE 12 |
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50 | #define ERROR_RESERVED_13 13 |
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51 | #define ERROR_RESERVED_14 14 |
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52 | #define ERROR_BAD_DISK_CHANGE 15 |
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53 | |||
54 | #define COMMAND_READ 3 |
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55 | #define COMMAND_WRITE 12 |
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56 | #define COMMAND_PLAY_AUDIO 132 |
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57 | #define COMMAND_STOP_AUDIO 133 |
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58 | #define COMMAND_RESUME_AUDIO 136 |
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59 | |||
60 | #define READ_REQUEST_AUDIO_CHANNEL_INFO 4 |
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61 | #define READ_REQUEST_DEVICE_STATUS 6 |
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62 | #define READ_REQUEST_MEDIA_CHANGE 9 |
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63 | #define READ_REQUEST_AUDIO_DISK_INFO 10 |
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64 | #define READ_REQUEST_AUDIO_TRACK_INFO 11 |
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65 | #define READ_REQUEST_AUDIO_STATUS 15 |
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66 | |||
67 | #define WRITE_REQUEST_EJECT 0 |
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68 | #define WRITE_REQUEST_RESET 2 |
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69 | #define WRITE_REQUEST_AUDIO_CHANNEL_INFO 3 |
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70 | |||
71 | #define STATUS_DOOR_OPEN 0x00000001 |
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72 | #define STATUS_DOOR_UNLOCKED 0x00000002 |
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73 | #define STATUS_RAW_SUPPORT 0x00000004 |
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74 | #define STATUS_READ_WRITE 0x00000008 |
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75 | #define STATUS_AUDIO_SUPPORT 0x00000010 |
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76 | #define STATUS_INTERLEAVE_SUPPORT 0x00000020 |
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77 | #define STATUS_BIT_6_RESERVED 0x00000040 |
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78 | #define STATUS_PREFETCH_SUPPORT 0x00000080 |
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79 | #define STATUS_AUDIO_MANIPLUATION_SUPPORT 0x00000100 |
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80 | #define STATUS_RED_BOOK_ADDRESS_SUPPORT 0x00000200 |
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81 | |||
82 | #define MEDIA_NOT_CHANGED 1 |
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83 | #define MEDIA_STATUS_UNKNOWN 0 |
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84 | #define MEDIA_CHANGED -1 |
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85 | |||
86 | #define AUDIO_CONTROL_MASK 0xd0 |
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87 | #define AUDIO_CONTROL_DATA_TRACK 0x40 |
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88 | #define AUDIO_CONTROL_AUDIO_2_TRACK 0x00 |
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89 | #define AUDIO_CONTROL_AUDIO_2P_TRACK 0x10 |
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90 | #define AUDIO_CONTROL_AUDIO_4_TRACK 0x80 |
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91 | #define AUDIO_CONTROL_AUDIO_4P_TRACK 0x90 |
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92 | |||
93 | #define AUDIO_STATUS_PAUSED 0x0001 |
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94 | |||
95 | #pragma pack(1) |
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96 | |||
97 | struct playAudioRequest |
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98 | { |
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99 | char addressingMode; |
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100 | int startLocation; |
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101 | int sectors; |
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102 | }; |
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103 | |||
104 | struct readRequest |
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105 | { |
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106 | char mediaDescriptor; |
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107 | short bufferOffset; |
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108 | short bufferSegment; |
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109 | short length; |
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110 | short startSector; |
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111 | int volumeID; |
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112 | }; |
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113 | |||
114 | struct writeRequest |
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115 | { |
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116 | char mediaDescriptor; |
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117 | short bufferOffset; |
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118 | short bufferSegment; |
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119 | short length; |
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120 | short startSector; |
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121 | int volumeID; |
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122 | }; |
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123 | |||
124 | struct cd_request |
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125 | { |
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126 | char headerLength; |
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127 | char unit; |
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128 | char command; |
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129 | short status; |
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130 | char reserved[8]; |
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131 | union |
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132 | { |
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133 | struct playAudioRequest playAudio; |
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134 | struct readRequest read; |
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135 | struct writeRequest write; |
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136 | } x; |
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137 | }; |
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138 | |||
139 | |||
140 | struct audioChannelInfo_s |
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141 | { |
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142 | char code; |
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143 | char channel0input; |
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144 | char channel0volume; |
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145 | char channel1input; |
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146 | char channel1volume; |
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147 | char channel2input; |
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148 | char channel2volume; |
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149 | char channel3input; |
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150 | char channel3volume; |
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151 | }; |
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152 | |||
153 | struct deviceStatus_s |
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154 | { |
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155 | char code; |
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156 | int status; |
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157 | }; |
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158 | |||
159 | struct mediaChange_s |
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160 | { |
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161 | char code; |
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162 | char status; |
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163 | }; |
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164 | |||
165 | struct audioDiskInfo_s |
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166 | { |
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167 | char code; |
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168 | char lowTrack; |
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169 | char highTrack; |
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170 | int leadOutStart; |
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171 | }; |
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172 | |||
173 | struct audioTrackInfo_s |
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174 | { |
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175 | char code; |
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176 | char track; |
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177 | int start; |
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178 | char control; |
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179 | }; |
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180 | |||
181 | struct audioStatus_s |
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182 | { |
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183 | char code; |
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184 | short status; |
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185 | int PRstartLocation; |
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186 | int PRendLocation; |
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187 | }; |
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188 | |||
189 | struct reset_s |
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190 | { |
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191 | char code; |
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192 | }; |
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193 | |||
194 | union readInfo_u |
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195 | { |
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196 | struct audioChannelInfo_s audioChannelInfo; |
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197 | struct deviceStatus_s deviceStatus; |
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198 | struct mediaChange_s mediaChange; |
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199 | struct audioDiskInfo_s audioDiskInfo; |
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200 | struct audioTrackInfo_s audioTrackInfo; |
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201 | struct audioStatus_s audioStatus; |
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202 | struct reset_s reset; |
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203 | }; |
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204 | |||
205 | #pragma pack() |
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206 | |||
207 | #define MAXIMUM_TRACKS 100 |
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208 | |||
209 | typedef struct |
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210 | { |
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211 | int start; |
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212 | int length; |
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213 | qboolean isData; |
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214 | } track_info; |
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215 | |||
216 | typedef struct |
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217 | { |
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218 | qboolean valid; |
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219 | int leadOutAddress; |
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220 | track_info track[MAXIMUM_TRACKS]; |
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221 | byte lowTrack; |
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222 | byte highTrack; |
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223 | } cd_info; |
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224 | |||
225 | static struct cd_request *cdRequest; |
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226 | static union readInfo_u *readInfo; |
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227 | static cd_info cd; |
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228 | |||
229 | static qboolean playing = false; |
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230 | static qboolean wasPlaying = false; |
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231 | static qboolean mediaCheck = false; |
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232 | static qboolean initialized = false; |
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233 | static qboolean enabled = true; |
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234 | static qboolean playLooping = false; |
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235 | static short cdRequestSegment; |
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236 | static short cdRequestOffset; |
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237 | static short readInfoSegment; |
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238 | static short readInfoOffset; |
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239 | static byte remap[256]; |
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240 | static byte cdrom; |
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241 | static byte playTrack; |
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242 | static byte cdvolume; |
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243 | |||
244 | |||
245 | static int RedBookToSector(int rb) |
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246 | { |
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247 | byte minute; |
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248 | byte second; |
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249 | byte frame; |
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250 | |||
251 | minute = (rb >> 16) & 0xff; |
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252 | second = (rb >> 8) & 0xff; |
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253 | frame = rb & 0xff; |
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254 | return minute * 60 * 75 + second * 75 + frame; |
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255 | } |
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256 | |||
257 | |||
258 | static void CDAudio_Reset(void) |
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259 | { |
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260 | cdRequest->headerLength = 13; |
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261 | cdRequest->unit = 0; |
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262 | cdRequest->command = COMMAND_WRITE; |
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263 | cdRequest->status = 0; |
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264 | |||
265 | cdRequest->x.write.mediaDescriptor = 0; |
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266 | cdRequest->x.write.bufferOffset = readInfoOffset; |
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267 | cdRequest->x.write.bufferSegment = readInfoSegment; |
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268 | cdRequest->x.write.length = sizeof(struct reset_s); |
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269 | cdRequest->x.write.startSector = 0; |
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270 | cdRequest->x.write.volumeID = 0; |
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271 | |||
272 | readInfo->reset.code = WRITE_REQUEST_RESET; |
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273 | |||
274 | regs.x.ax = 0x1510; |
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275 | regs.x.cx = cdrom; |
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276 | regs.x.es = cdRequestSegment; |
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277 | regs.x.bx = cdRequestOffset; |
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278 | dos_int86 (0x2f); |
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279 | } |
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280 | |||
281 | |||
282 | static void CDAudio_Eject(void) |
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283 | { |
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284 | cdRequest->headerLength = 13; |
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285 | cdRequest->unit = 0; |
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286 | cdRequest->command = COMMAND_WRITE; |
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287 | cdRequest->status = 0; |
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288 | |||
289 | cdRequest->x.write.mediaDescriptor = 0; |
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290 | cdRequest->x.write.bufferOffset = readInfoOffset; |
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291 | cdRequest->x.write.bufferSegment = readInfoSegment; |
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292 | cdRequest->x.write.length = sizeof(struct reset_s); |
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293 | cdRequest->x.write.startSector = 0; |
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294 | cdRequest->x.write.volumeID = 0; |
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295 | |||
296 | readInfo->reset.code = WRITE_REQUEST_EJECT; |
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297 | |||
298 | regs.x.ax = 0x1510; |
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299 | regs.x.cx = cdrom; |
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300 | regs.x.es = cdRequestSegment; |
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301 | regs.x.bx = cdRequestOffset; |
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302 | dos_int86 (0x2f); |
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303 | } |
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304 | |||
305 | |||
306 | static int CDAudio_GetAudioTrackInfo(byte track, int *start) |
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307 | { |
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308 | byte control; |
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309 | |||
310 | cdRequest->headerLength = 13; |
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311 | cdRequest->unit = 0; |
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312 | cdRequest->command = COMMAND_READ; |
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313 | cdRequest->status = 0; |
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314 | |||
315 | cdRequest->x.read.mediaDescriptor = 0; |
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316 | cdRequest->x.read.bufferOffset = readInfoOffset; |
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317 | cdRequest->x.read.bufferSegment = readInfoSegment; |
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318 | cdRequest->x.read.length = sizeof(struct audioTrackInfo_s); |
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319 | cdRequest->x.read.startSector = 0; |
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320 | cdRequest->x.read.volumeID = 0; |
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321 | |||
322 | readInfo->audioTrackInfo.code = READ_REQUEST_AUDIO_TRACK_INFO; |
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323 | readInfo->audioTrackInfo.track = track; |
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324 | |||
325 | regs.x.ax = 0x1510; |
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326 | regs.x.cx = cdrom; |
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327 | regs.x.es = cdRequestSegment; |
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328 | regs.x.bx = cdRequestOffset; |
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329 | dos_int86 (0x2f); |
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330 | |||
331 | if (cdRequest->status & STATUS_ERROR_BIT) |
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332 | { |
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333 | Con_DPrintf("CDAudio_GetAudioTrackInfo %04x\n", cdRequest->status & 0xffff); |
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334 | return -1; |
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335 | } |
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336 | |||
337 | *start = readInfo->audioTrackInfo.start; |
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338 | control = readInfo->audioTrackInfo.control & AUDIO_CONTROL_MASK; |
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339 | return (control & AUDIO_CONTROL_DATA_TRACK); |
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340 | } |
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341 | |||
342 | |||
343 | static int CDAudio_GetAudioDiskInfo(void) |
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344 | { |
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345 | int n; |
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346 | |||
347 | cdRequest->headerLength = 13; |
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348 | cdRequest->unit = 0; |
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349 | cdRequest->command = COMMAND_READ; |
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350 | cdRequest->status = 0; |
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351 | |||
352 | cdRequest->x.read.mediaDescriptor = 0; |
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353 | cdRequest->x.read.bufferOffset = readInfoOffset; |
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354 | cdRequest->x.read.bufferSegment = readInfoSegment; |
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355 | cdRequest->x.read.length = sizeof(struct audioDiskInfo_s); |
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356 | cdRequest->x.read.startSector = 0; |
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357 | cdRequest->x.read.volumeID = 0; |
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358 | |||
359 | readInfo->audioDiskInfo.code = READ_REQUEST_AUDIO_DISK_INFO; |
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360 | |||
361 | regs.x.ax = 0x1510; |
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362 | regs.x.cx = cdrom; |
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363 | regs.x.es = cdRequestSegment; |
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364 | regs.x.bx = cdRequestOffset; |
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365 | dos_int86 (0x2f); |
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366 | |||
367 | if (cdRequest->status & STATUS_ERROR_BIT) |
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368 | { |
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369 | Con_DPrintf("CDAudio_GetAudioDiskInfo %04x\n", cdRequest->status & 0xffff); |
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370 | return -1; |
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371 | } |
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372 | |||
373 | cd.valid = true; |
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374 | cd.lowTrack = readInfo->audioDiskInfo.lowTrack; |
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375 | cd.highTrack = readInfo->audioDiskInfo.highTrack; |
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376 | cd.leadOutAddress = readInfo->audioDiskInfo.leadOutStart; |
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377 | |||
378 | for (n = cd.lowTrack; n <= cd.highTrack; n++) |
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379 | { |
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380 | cd.track[n].isData = CDAudio_GetAudioTrackInfo (n, &cd.track[n].start); |
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381 | if (n > cd.lowTrack) |
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382 | { |
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383 | cd.track[n-1].length = RedBookToSector(cd.track[n].start) - RedBookToSector(cd.track[n-1].start); |
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384 | if (n == cd.highTrack) |
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385 | cd.track[n].length = RedBookToSector(cd.leadOutAddress) - RedBookToSector(cd.track[n].start); |
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386 | } |
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387 | } |
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388 | |||
389 | return 0; |
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390 | } |
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391 | |||
392 | |||
393 | static int CDAudio_GetAudioStatus(void) |
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394 | { |
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395 | cdRequest->headerLength = 13; |
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396 | cdRequest->unit = 0; |
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397 | cdRequest->command = COMMAND_READ; |
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398 | cdRequest->status = 0; |
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399 | |||
400 | cdRequest->x.read.mediaDescriptor = 0; |
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401 | cdRequest->x.read.bufferOffset = readInfoOffset; |
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402 | cdRequest->x.read.bufferSegment = readInfoSegment; |
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403 | cdRequest->x.read.length = sizeof(struct audioStatus_s); |
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404 | cdRequest->x.read.startSector = 0; |
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405 | cdRequest->x.read.volumeID = 0; |
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406 | |||
407 | readInfo->audioDiskInfo.code = READ_REQUEST_AUDIO_STATUS; |
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408 | |||
409 | regs.x.ax = 0x1510; |
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410 | regs.x.cx = cdrom; |
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411 | regs.x.es = cdRequestSegment; |
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412 | regs.x.bx = cdRequestOffset; |
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413 | dos_int86 (0x2f); |
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414 | |||
415 | if (cdRequest->status & STATUS_ERROR_BIT) |
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416 | return -1; |
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417 | return 0; |
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418 | } |
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419 | |||
420 | |||
421 | static int CDAudio_MediaChange(void) |
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422 | { |
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423 | cdRequest->headerLength = 13; |
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424 | cdRequest->unit = 0; |
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425 | cdRequest->command = COMMAND_READ; |
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426 | cdRequest->status = 0; |
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427 | |||
428 | cdRequest->x.read.mediaDescriptor = 0; |
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429 | cdRequest->x.read.bufferOffset = readInfoOffset; |
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430 | cdRequest->x.read.bufferSegment = readInfoSegment; |
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431 | cdRequest->x.read.length = sizeof(struct mediaChange_s); |
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432 | cdRequest->x.read.startSector = 0; |
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433 | cdRequest->x.read.volumeID = 0; |
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434 | |||
435 | readInfo->mediaChange.code = READ_REQUEST_MEDIA_CHANGE; |
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436 | |||
437 | regs.x.ax = 0x1510; |
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438 | regs.x.cx = cdrom; |
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439 | regs.x.es = cdRequestSegment; |
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440 | regs.x.bx = cdRequestOffset; |
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441 | dos_int86 (0x2f); |
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442 | |||
443 | return readInfo->mediaChange.status; |
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444 | } |
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445 | |||
446 | |||
447 | // we set the volume to 0 first and then to the desired volume |
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448 | // some cd-rom drivers seem to need it done this way |
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449 | void CDAudio_SetVolume (byte volume) |
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450 | { |
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451 | if (!initialized || !enabled) |
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452 | return; |
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453 | |||
454 | cdRequest->headerLength = 13; |
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455 | cdRequest->unit = 0; |
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456 | cdRequest->command = COMMAND_WRITE; |
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457 | cdRequest->status = 0; |
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458 | |||
459 | cdRequest->x.read.mediaDescriptor = 0; |
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460 | cdRequest->x.read.bufferOffset = readInfoOffset; |
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461 | cdRequest->x.read.bufferSegment = readInfoSegment; |
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462 | cdRequest->x.read.length = sizeof(struct audioChannelInfo_s); |
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463 | cdRequest->x.read.startSector = 0; |
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464 | cdRequest->x.read.volumeID = 0; |
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465 | |||
466 | readInfo->audioChannelInfo.code = WRITE_REQUEST_AUDIO_CHANNEL_INFO; |
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467 | readInfo->audioChannelInfo.channel0input = 0; |
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468 | readInfo->audioChannelInfo.channel0volume = 0; |
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469 | readInfo->audioChannelInfo.channel1input = 1; |
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470 | readInfo->audioChannelInfo.channel1volume = 0; |
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471 | readInfo->audioChannelInfo.channel2input = 2; |
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472 | readInfo->audioChannelInfo.channel2volume = 0; |
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473 | readInfo->audioChannelInfo.channel3input = 3; |
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474 | readInfo->audioChannelInfo.channel3volume = 0; |
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475 | |||
476 | regs.x.ax = 0x1510; |
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477 | regs.x.cx = cdrom; |
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478 | regs.x.es = cdRequestSegment; |
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479 | regs.x.bx = cdRequestOffset; |
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480 | dos_int86 (0x2f); |
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481 | |||
482 | readInfo->audioChannelInfo.channel0volume = volume; |
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483 | readInfo->audioChannelInfo.channel1volume = volume; |
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484 | |||
485 | regs.x.ax = 0x1510; |
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486 | regs.x.cx = cdrom; |
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487 | regs.x.es = cdRequestSegment; |
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488 | regs.x.bx = cdRequestOffset; |
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489 | dos_int86 (0x2f); |
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490 | |||
491 | cdvolume = volume; |
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492 | } |
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493 | |||
494 | |||
495 | void CDAudio_Play(byte track, qboolean looping) |
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496 | { |
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497 | int volume; |
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498 | |||
499 | if (!initialized || !enabled) |
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500 | return; |
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501 | |||
502 | if (!cd.valid) |
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503 | return; |
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504 | |||
505 | track = remap[track]; |
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506 | |||
507 | if (playing) |
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508 | { |
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509 | if (playTrack == track) |
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510 | return; |
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511 | CDAudio_Stop(); |
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512 | } |
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513 | |||
514 | playLooping = looping; |
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515 | |||
516 | if (track < cd.lowTrack || track > cd.highTrack) |
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517 | { |
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518 | Con_DPrintf("CDAudio_Play: Bad track number %u.\n", track); |
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519 | return; |
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520 | } |
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521 | |||
522 | playTrack = track; |
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523 | |||
524 | if (cd.track[track].isData) |
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525 | { |
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526 | Con_DPrintf("CDAudio_Play: Can not play data.\n"); |
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527 | return; |
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528 | } |
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529 | |||
530 | volume = (int)(bgmvolume.value * 255.0); |
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531 | if (volume < 0) |
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532 | { |
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533 | Cvar_SetValue ("bgmvolume", 0.0); |
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534 | volume = 0; |
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535 | } |
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536 | else if (volume > 255) |
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537 | { |
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538 | Cvar_SetValue ("bgmvolume", 1.0); |
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539 | volume = 255; |
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540 | } |
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541 | CDAudio_SetVolume (volume); |
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542 | |||
543 | cdRequest->headerLength = 13; |
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544 | cdRequest->unit = 0; |
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545 | cdRequest->command = COMMAND_PLAY_AUDIO; |
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546 | cdRequest->status = 0; |
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547 | |||
548 | cdRequest->x.playAudio.addressingMode = ADDRESS_MODE_RED_BOOK; |
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549 | cdRequest->x.playAudio.startLocation = cd.track[track].start; |
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550 | cdRequest->x.playAudio.sectors = cd.track[track].length; |
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551 | |||
552 | regs.x.ax = 0x1510; |
||
553 | regs.x.cx = cdrom; |
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554 | regs.x.es = cdRequestSegment; |
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555 | regs.x.bx = cdRequestOffset; |
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556 | dos_int86 (0x2f); |
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557 | |||
558 | if (cdRequest->status & STATUS_ERROR_BIT) |
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559 | { |
||
560 | Con_DPrintf("CDAudio_Play: track %u failed\n", track); |
||
561 | cd.valid = false; |
||
562 | playing = false; |
||
563 | return; |
||
564 | } |
||
565 | |||
566 | playing = true; |
||
567 | } |
||
568 | |||
569 | |||
570 | void CDAudio_Stop(void) |
||
571 | { |
||
572 | if (!initialized || !enabled) |
||
573 | return; |
||
574 | |||
575 | cdRequest->headerLength = 13; |
||
576 | cdRequest->unit = 0; |
||
577 | cdRequest->command = COMMAND_STOP_AUDIO; |
||
578 | cdRequest->status = 0; |
||
579 | |||
580 | regs.x.ax = 0x1510; |
||
581 | regs.x.cx = cdrom; |
||
582 | regs.x.es = cdRequestSegment; |
||
583 | regs.x.bx = cdRequestOffset; |
||
584 | dos_int86 (0x2f); |
||
585 | |||
586 | wasPlaying = playing; |
||
587 | playing = false; |
||
588 | } |
||
589 | |||
590 | |||
591 | void CDAudio_Pause(void) |
||
592 | { |
||
593 | CDAudio_Stop(); |
||
594 | } |
||
595 | |||
596 | |||
597 | void CDAudio_Resume(void) |
||
598 | { |
||
599 | if (!initialized || !enabled) |
||
600 | return; |
||
601 | |||
602 | if (!cd.valid) |
||
603 | return; |
||
604 | |||
605 | if (!wasPlaying) |
||
606 | return; |
||
607 | |||
608 | cdRequest->headerLength = 13; |
||
609 | cdRequest->unit = 0; |
||
610 | cdRequest->command = COMMAND_RESUME_AUDIO; |
||
611 | cdRequest->status = 0; |
||
612 | |||
613 | regs.x.ax = 0x1510; |
||
614 | regs.x.cx = cdrom; |
||
615 | regs.x.es = cdRequestSegment; |
||
616 | regs.x.bx = cdRequestOffset; |
||
617 | dos_int86 (0x2f); |
||
618 | |||
619 | playing = true; |
||
620 | } |
||
621 | |||
622 | |||
623 | static void CD_f (void) |
||
624 | { |
||
625 | char *command; |
||
626 | int ret; |
||
627 | int n; |
||
628 | int startAddress; |
||
629 | |||
630 | if (Cmd_Argc() < 2) |
||
631 | return; |
||
632 | |||
633 | command = Cmd_Argv (1); |
||
634 | |||
635 | if (Q_strcasecmp(command, "on") == 0) |
||
636 | { |
||
637 | enabled = true; |
||
638 | return; |
||
639 | } |
||
640 | |||
641 | if (Q_strcasecmp(command, "off") == 0) |
||
642 | { |
||
643 | if (playing) |
||
644 | CDAudio_Stop(); |
||
645 | enabled = false; |
||
646 | return; |
||
647 | } |
||
648 | |||
649 | if (Q_strcasecmp(command, "reset") == 0) |
||
650 | { |
||
651 | enabled = true; |
||
652 | if (playing) |
||
653 | CDAudio_Stop(); |
||
654 | for (n = 0; n < 256; n++) |
||
655 | remap[n] = n; |
||
656 | CDAudio_Reset(); |
||
657 | CDAudio_GetAudioDiskInfo(); |
||
658 | return; |
||
659 | } |
||
660 | |||
661 | if (Q_strcasecmp(command, "remap") == 0) |
||
662 | { |
||
663 | ret = Cmd_Argc() - 2; |
||
664 | if (ret <= 0) |
||
665 | { |
||
666 | for (n = 1; n < 256; n++) |
||
667 | if (remap[n] != n) |
||
668 | Con_Printf(" %u -> %u\n", n, remap[n]); |
||
669 | return; |
||
670 | } |
||
671 | for (n = 1; n <= ret; n++) |
||
672 | remap[n] = Q_atoi(Cmd_Argv (n+1)); |
||
673 | return; |
||
674 | } |
||
675 | |||
676 | if (!cd.valid) |
||
677 | { |
||
678 | Con_Printf("No CD in player.\n"); |
||
679 | return; |
||
680 | } |
||
681 | |||
682 | if (Q_strcasecmp(command, "play") == 0) |
||
683 | { |
||
684 | CDAudio_Play(Q_atoi(Cmd_Argv (2)), false); |
||
685 | return; |
||
686 | } |
||
687 | |||
688 | if (Q_strcasecmp(command, "loop") == 0) |
||
689 | { |
||
690 | CDAudio_Play(Q_atoi(Cmd_Argv (2)), true); |
||
691 | return; |
||
692 | } |
||
693 | |||
694 | if (Q_strcasecmp(command, "stop") == 0) |
||
695 | { |
||
696 | CDAudio_Stop(); |
||
697 | return; |
||
698 | } |
||
699 | |||
700 | if (Q_strcasecmp(command, "pause") == 0) |
||
701 | { |
||
702 | CDAudio_Pause(); |
||
703 | return; |
||
704 | } |
||
705 | |||
706 | if (Q_strcasecmp(command, "resume") == 0) |
||
707 | { |
||
708 | CDAudio_Resume(); |
||
709 | return; |
||
710 | } |
||
711 | |||
712 | if (Q_strcasecmp(command, "eject") == 0) |
||
713 | { |
||
714 | if (playing) |
||
715 | CDAudio_Stop(); |
||
716 | CDAudio_Eject(); |
||
717 | cd.valid = false; |
||
718 | return; |
||
719 | } |
||
720 | |||
721 | if (Q_strcasecmp(command, "info") == 0) |
||
722 | { |
||
723 | Con_Printf("%u tracks\n", cd.highTrack - cd.lowTrack + 1); |
||
724 | for (n = cd.lowTrack; n <= cd.highTrack; n++) |
||
725 | { |
||
726 | ret = CDAudio_GetAudioTrackInfo (n, &startAddress); |
||
727 | Con_Printf("Track %2u: %s at %2u:%02u\n", n, ret ? "data " : "music", (startAddress >> 16) & 0xff, (startAddress >> 8) & 0xff); |
||
728 | } |
||
729 | if (playing) |
||
730 | Con_Printf("Currently %s track %u\n", playLooping ? "looping" : "playing", playTrack); |
||
731 | Con_Printf("Volume is %u\n", cdvolume); |
||
732 | CDAudio_MediaChange(); |
||
733 | Con_Printf("Status %04x\n", cdRequest->status & 0xffff); |
||
734 | return; |
||
735 | } |
||
736 | } |
||
737 | |||
738 | |||
739 | void CDAudio_Update(void) |
||
740 | { |
||
741 | int ret; |
||
742 | int newVolume; |
||
743 | static double lastUpdate; |
||
744 | |||
745 | if (!initialized || !enabled) |
||
746 | return; |
||
747 | |||
748 | if ((realtime - lastUpdate) < 0.25) |
||
749 | return; |
||
750 | lastUpdate = realtime; |
||
751 | |||
752 | if (mediaCheck) |
||
753 | { |
||
754 | static double lastCheck; |
||
755 | |||
756 | if ((realtime - lastCheck) < 5.0) |
||
757 | return; |
||
758 | lastCheck = realtime; |
||
759 | |||
760 | ret = CDAudio_MediaChange(); |
||
761 | if (ret == MEDIA_CHANGED) |
||
762 | { |
||
763 | Con_DPrintf("CDAudio: media changed\n"); |
||
764 | playing = false; |
||
765 | wasPlaying = false; |
||
766 | cd.valid = false; |
||
767 | CDAudio_GetAudioDiskInfo(); |
||
768 | return; |
||
769 | } |
||
770 | } |
||
771 | |||
772 | newVolume = (int)(bgmvolume.value * 255.0); |
||
773 | if (newVolume != cdvolume) |
||
774 | { |
||
775 | if (newVolume < 0) |
||
776 | { |
||
777 | Cvar_SetValue ("bgmvolume", 0.0); |
||
778 | newVolume = 0; |
||
779 | } |
||
780 | else if (newVolume > 255) |
||
781 | { |
||
782 | Cvar_SetValue ("bgmvolume", 1.0); |
||
783 | newVolume = 255; |
||
784 | } |
||
785 | CDAudio_SetVolume (newVolume); |
||
786 | } |
||
787 | |||
788 | if (playing) |
||
789 | { |
||
790 | CDAudio_GetAudioStatus(); |
||
791 | if ((cdRequest->status & STATUS_BUSY_BIT) == 0) |
||
792 | { |
||
793 | playing = false; |
||
794 | if (playLooping) |
||
795 | CDAudio_Play(playTrack, true); |
||
796 | } |
||
797 | } |
||
798 | } |
||
799 | |||
800 | |||
801 | int CDAudio_Init(void) |
||
802 | { |
||
803 | char *memory; |
||
804 | int n; |
||
805 | |||
806 | if (cls.state == ca_dedicated) |
||
807 | return -1; |
||
808 | |||
809 | if (COM_CheckParm("-nocdaudio")) |
||
810 | return -1; |
||
811 | |||
812 | if (COM_CheckParm("-cdmediacheck")) |
||
813 | mediaCheck = true; |
||
814 | |||
815 | regs.x.ax = 0x1500; |
||
816 | regs.x.bx = 0; |
||
817 | dos_int86 (0x2f); |
||
818 | if (regs.x.bx == 0) |
||
819 | { |
||
820 | Con_NotifyBox ( |
||
821 | "MSCDEX not loaded, music is\n" |
||
822 | "disabled. Use \"-nocdaudio\" if you\n" |
||
823 | "wish to avoid this message in the\n" |
||
824 | "future. See README.TXT for help.\n" |
||
825 | ); |
||
826 | return -1; |
||
827 | } |
||
828 | if (regs.x.bx > 1) |
||
829 | Con_DPrintf("CDAudio_Init: First CD-ROM drive will be used\n"); |
||
830 | cdrom = regs.x.cx; |
||
831 | |||
832 | regs.x.ax = 0x150c; |
||
833 | regs.x.bx = 0; |
||
834 | dos_int86 (0x2f); |
||
835 | if (regs.x.bx == 0) |
||
836 | { |
||
837 | Con_NotifyBox ( |
||
838 | "MSCDEX version 2.00 or later\n" |
||
839 | "required for music. See README.TXT\n" |
||
840 | "for help.\n" |
||
841 | ); |
||
842 | Con_DPrintf("CDAudio_Init: MSCDEX version 2.00 or later required.\n"); |
||
843 | return -1; |
||
844 | } |
||
845 | |||
846 | memory = dos_getmemory(sizeof(struct cd_request |
||
847 | ) + sizeof(union readInfo_u)); |
||
848 | if (memory == NULL) |
||
849 | { |
||
850 | Con_DPrintf("CDAudio_Init: Unable to allocate low memory.\n"); |
||
851 | return -1; |
||
852 | } |
||
853 | |||
854 | cdRequest = (struct cd_request *)memory; |
||
855 | cdRequestSegment = ptr2real(cdRequest) >> 4; |
||
856 | cdRequestOffset = ptr2real(cdRequest) & 0xf; |
||
857 | |||
858 | readInfo = (union readInfo_u *)(memory + sizeof(struct cd_request)); |
||
859 | readInfoSegment = ptr2real(readInfo) >> 4; |
||
860 | readInfoOffset = ptr2real(readInfo) & 0xf; |
||
861 | |||
862 | for (n = 0; n < 256; n++) |
||
863 | remap[n] = n; |
||
864 | initialized = true; |
||
865 | |||
866 | CDAudio_SetVolume (255); |
||
867 | if (CDAudio_GetAudioDiskInfo()) |
||
868 | { |
||
869 | Con_Printf("CDAudio_Init: No CD in player.\n"); |
||
870 | enabled = false; |
||
871 | } |
||
872 | |||
873 | Cmd_AddCommand ("cd", CD_f); |
||
874 | |||
875 | Con_Printf("CD Audio Initialized\n"); |
||
876 | |||
877 | return 0; |
||
878 | } |
||
879 | |||
880 | |||
881 | void CDAudio_Shutdown(void) |
||
882 | { |
||
883 | if (!initialized) |
||
884 | return; |
||
885 | CDAudio_Stop(); |
||
886 | }>>>>=>=>>=>>>>>=> |