annotate playercode/load_uni.c @ 4:5d614bcc4287

Initial entry of mikmod into the CVS tree.
author darius
date Fri, 23 Jan 1998 16:05:08 +0000
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1 /*
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2
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3 Name: LOAD_UNI.C
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4
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5 Description:
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6 UNIMOD (mikmod's internal format) module loader.
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7 Currently only supports UniMOD 06 - the internal format for MikMod 3.0.
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8
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9 Portability:
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10 All systems - all compilers (hopefully)
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11
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12 */
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13
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14 #include <string.h>
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15 #include "mikmod.h"
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16
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17
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18 BOOL UNI_Test(void)
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19 {
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20 UBYTE id[4];
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21
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22 _mm_read_UBYTES(id,4,modfp);
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23 if(!memcmp(id, "UN06", 4)) return 1;
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24
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25 return 0;
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26 }
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27
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28
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29 BOOL UNI_Init(void)
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30 {
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31 return 1;
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32 }
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33
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34
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35 void UNI_Cleanup(void)
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36 {
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37 }
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38
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39
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40 UBYTE *TrkRead(void)
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41 {
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42 UBYTE *t;
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43 UWORD len;
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44
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45 len = _mm_read_M_UWORD(modfp);
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46 t = (UBYTE *)malloc(len);
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47 _mm_read_UBYTES(t,len,modfp);
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48
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49 return t;
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50 }
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51
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52
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53 BOOL UNI_Load(void)
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54 {
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55 int t,v,w;
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56 INSTRUMENT *i;
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57 SAMPLE *s;
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58
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59 // UNI format version 3.0 (#6)
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60
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61 of.modtype = strdup("MikMod UniFormat 3.0");
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62
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63 _mm_fseek(modfp,5,SEEK_SET); // skip the header
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64
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65 of.flags = _mm_read_M_UWORD(modfp);
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66 of.numchn = _mm_read_UBYTE(modfp);
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67 of.numvoices = _mm_read_UBYTE(modfp);
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68 of.numpos = _mm_read_M_UWORD(modfp);
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69 of.numpat = _mm_read_M_UWORD(modfp);
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70 of.numtrk = _mm_read_M_UWORD(modfp);
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71 of.numins = _mm_read_M_UWORD(modfp);
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72 of.numsmp = _mm_read_M_UWORD(modfp);
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73 of.reppos = _mm_read_M_UWORD(modfp);
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74 of.initspeed = _mm_read_UBYTE(modfp);
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75 of.inittempo = _mm_read_UBYTE(modfp);
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76 of.initvolume = _mm_read_UBYTE(modfp);
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77
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78 if(feof(modfp))
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79 { _mm_errno = MMERR_LOADING_HEADER;
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80 return 0;
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81 }
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82
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83 of.songname = StringRead(modfp);
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84 of.composer = StringRead(modfp);
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85 of.comment = StringRead(modfp);
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86
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87 if(feof(modfp))
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88 { _mm_errno = MMERR_LOADING_HEADER;
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89 return 0;
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90 }
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91
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92 if(!AllocSamples()) return 0;
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93 if(!AllocTracks()) return 0;
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94 if(!AllocPatterns()) return 0;
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95 if(!AllocPositions(of.numpos)) return 0;
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96
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97 _mm_read_UBYTES(of.positions,of.numpos,modfp);
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98 _mm_read_M_UWORDS(of.panning,of.numchn,modfp);
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99 _mm_read_UBYTES(of.chanvol,of.numchn,modfp);
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100
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101
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102 // Load sample headers
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103
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104 s = of.samples;
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105 for(v=0; v<of.numsmp; v++, s++)
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106 { s->flags = _mm_read_M_UWORD(modfp);
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107 s->speed = _mm_read_M_ULONG(modfp);
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108 s->volume = _mm_read_UBYTE(modfp);
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109 s->panning = _mm_read_M_UWORD(modfp);
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110 s->length = _mm_read_M_ULONG(modfp);
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111 s->loopstart = _mm_read_M_ULONG(modfp);
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112 s->loopend = _mm_read_M_ULONG(modfp);
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113 s->susbegin = _mm_read_M_ULONG(modfp);
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114 s->susend = _mm_read_M_ULONG(modfp);
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115
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116 s->globvol = _mm_read_UBYTE(modfp);
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117 s->vibflags = _mm_read_UBYTE(modfp);
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118 s->vibtype = _mm_read_UBYTE(modfp);
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119 s->vibsweep = _mm_read_UBYTE(modfp);
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120 s->vibdepth = _mm_read_UBYTE(modfp);
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121 s->vibrate = _mm_read_UBYTE(modfp);
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122 s->samplename = StringRead(modfp);
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123
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124 if(feof(modfp))
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125 { _mm_errno = MMERR_LOADING_HEADER;
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126 return 0;
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127 }
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128 }
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129
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130 // Load instruments
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131
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132 if(of.flags & UF_INST)
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133 { if(!AllocInstruments()) return 0;
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134 i = of.instruments;
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135
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136 for(v=0; v<of.numins; v++, i++)
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137 { i->flags = _mm_read_UBYTE(modfp);
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138 i->nnatype = _mm_read_UBYTE(modfp);
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139 i->dca = _mm_read_UBYTE(modfp);
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140 i->dct = _mm_read_UBYTE(modfp);
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141 i->globvol = _mm_read_UBYTE(modfp);
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142 i->panning = _mm_read_M_UWORD(modfp);
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143 i->pitpansep = _mm_read_UBYTE(modfp);
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144 i->pitpancenter = _mm_read_UBYTE(modfp);
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145 i->rvolvar = _mm_read_UBYTE(modfp);
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146 i->rpanvar = _mm_read_UBYTE(modfp);
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147
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148 i->volfade = _mm_read_M_UWORD(modfp);
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149
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150 i->volflg = _mm_read_UBYTE(modfp);
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151 i->volpts = _mm_read_UBYTE(modfp);
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152 i->volsusbeg = _mm_read_UBYTE(modfp);
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153 i->volsusend = _mm_read_UBYTE(modfp);
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154 i->volbeg = _mm_read_UBYTE(modfp);
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155 i->volend = _mm_read_UBYTE(modfp);
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156
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157 for(w=0; w<i->volpts; w++)
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158 { i->volenv[w].pos = _mm_read_M_SWORD(modfp);
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159 i->volenv[w].val = _mm_read_M_SWORD(modfp);
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160 }
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161
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162 i->panflg = _mm_read_UBYTE(modfp);
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163 i->panpts = _mm_read_UBYTE(modfp);
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164 i->pansusbeg = _mm_read_UBYTE(modfp);
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165 i->pansusend = _mm_read_UBYTE(modfp);
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166 i->panbeg = _mm_read_UBYTE(modfp);
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167 i->panend = _mm_read_UBYTE(modfp);
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168
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169 for(w=0; w<i->panpts; w++)
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170 { i->panenv[w].pos = _mm_read_M_SWORD(modfp);
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171 i->panenv[w].val = _mm_read_M_SWORD(modfp);
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172 }
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173
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174 i->pitflg = _mm_read_UBYTE(modfp);
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175 i->pitpts = _mm_read_UBYTE(modfp);
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176 i->pitsusbeg = _mm_read_UBYTE(modfp);
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177 i->pitsusend = _mm_read_UBYTE(modfp);
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178 i->pitbeg = _mm_read_UBYTE(modfp);
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179 i->pitend = _mm_read_UBYTE(modfp);
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180
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181 for(w=0; w<i->pitpts; w++)
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182 { i->pitenv[w].pos = _mm_read_M_SWORD(modfp);
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183 i->pitenv[w].val = _mm_read_M_SWORD(modfp);
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184 }
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185
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186 _mm_read_UBYTES(i->samplenumber, 120, modfp);
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187 _mm_read_UBYTES(i->samplenote, 120, modfp);
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188
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189 i->insname = StringRead(modfp);
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190
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191 if(feof(modfp))
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192 { _mm_errno = MMERR_LOADING_HEADER;
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193 return 0;
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194 }
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195 }
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196 }
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197
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198 // Read patterns
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199
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200 _mm_read_M_UWORDS(of.pattrows,of.numpat,modfp);
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201 _mm_read_M_UWORDS(of.patterns,of.numpat*of.numchn,modfp);
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202
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203 // Read tracks
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204
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205 for(t=0; t<of.numtrk; t++)
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206 of.tracks[t] = TrkRead();
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207
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208 return 1;
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209 }
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210
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211
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212 CHAR *UNI_LoadTitle(void)
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213 {
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214 _mm_fseek(modfp,24,SEEK_SET);
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215 return(StringRead(modfp));
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216 }
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217
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218
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219 MLOADER load_uni =
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220 { NULL,
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221 "UNI",
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222 "Portable UniFormat 3.0 Loader",
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223 UNI_Init,
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224 UNI_Test,
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225 UNI_Load,
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226 UNI_Cleanup,
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227 UNI_LoadTitle
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228 };
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229