1 | /*
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2 | =============================================================================
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3 | ptread.c -- librarian - read patch functions
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4 | Version 5 -- 1988-11-18 -- D.N. Lynx Crowe
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5 | =============================================================================
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6 | */
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7 |
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8 | #define DEBUGRE 0
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9 | #define DEBUGSP 0
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10 |
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11 | #include "ram.h"
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12 |
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13 | #if DEBUGSP
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14 | short debugsp = 1;
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15 | #endif
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16 |
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17 | /* |
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18 |
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19 | */
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20 |
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21 | /*
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22 | =============================================================================
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23 | stashp() -- stash an incoming patch
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24 | =============================================================================
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25 | */
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26 |
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27 | int16_t stashp(void)
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28 | {
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29 | register int16_t c;
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30 | register uint16_t np, stim;
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31 |
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32 | c = findpte();
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33 |
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34 | if (c EQ 0) { /* old patch -- just update it */
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35 |
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36 | memcpyw(&patches[ptecpos].defnum, &ptebuf.defnum, 6);
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37 | patches[ptecpos].paspec |= PE_TBIT; /* define it */
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38 |
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39 | #if DEBUGSP
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40 | if (debugsw AND debugsp) {
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41 |
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42 | printf("stashp(): UPDATED\n");
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43 | SnapPTV("stashp");
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44 | }
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45 | #endif
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46 |
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47 | return(SUCCESS);
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48 | }
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49 |
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50 | /* allocate a patch entry and fill it in */
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51 |
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52 | if (0 EQ (ptecpos = pt_alc())) {
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53 |
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54 | #if DEBUGSP
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55 | if (debugsw AND debugsp)
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56 | printf("stashp(): patch table FULL\n");
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57 | #endif
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58 | return(FAILURE); /* no patch entries left */
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59 | }
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60 |
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61 | memcpyw(&patches[ptecpos].defnum, &ptebuf.defnum, 6);
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62 | patches[ptecpos].paspec |= PE_TBIT; /* define it */
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63 | stim = TRG_MASK & ptebuf.stmnum;
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64 |
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65 | if (c EQ 1) { /* new patch -- no STM entry yet */
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66 |
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67 | ptepred = 0;
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68 | stmptr[stim] = ptecpos;
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69 | }
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70 | /* |
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71 |
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72 | */
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73 | /* put patch in STM chain */
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74 |
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75 | if (ptepred) { /* predecessor exits */
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76 |
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77 | ptesucc = patches[ptepred].nextstm;
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78 |
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79 | patches[ptecpos].nextstm = ptesucc;
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80 | patches[ptecpos].prevstm = ptepred;
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81 |
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82 | patches[ptepred].nextstm = ptecpos;
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83 |
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84 | if (ptesucc)
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85 | patches[ptesucc].prevstm = ptecpos;
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86 |
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87 | } else { /* no predecessor */
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88 |
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89 | patches[ptecpos].prevstm = 0;
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90 |
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91 | if (c EQ -1) {
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92 |
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93 | ptesucc = stmptr[stim];
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94 |
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95 | patches[ptecpos].nextstm = ptesucc;
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96 |
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97 | patches[ptesucc].prevstm = ptecpos;
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98 |
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99 | stmptr[stim] = ptecpos;
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100 |
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101 | } else {
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102 |
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103 | patches[ptecpos].nextstm = 0;
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104 | }
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105 | }
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106 | /* |
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107 |
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108 | */
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109 | /* update DEF table */
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110 |
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111 | if (0 EQ (c = finddpe())) {
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112 |
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113 | #if DEBUGSP
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114 | if (debugsw AND debugsp) {
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115 |
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116 | printf("stashp(): defent already exists -- dpecpos = %d\n",
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117 | dpecpos);
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118 |
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119 | printf("stashp(): ENTERED\n");
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120 | SnapPTV("stashp");
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121 | }
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122 | #endif
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123 | return(SUCCESS); /* defent already exists */
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124 | }
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125 |
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126 | if (0 EQ (dpecpos = dt_alc())) {
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127 |
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128 | #if DEBUGSP
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129 | if (debugsw AND debugsp)
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130 | printf("stashp(): defent table FULL\n");
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131 | #endif
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132 | return(FAILURE); /* no defents left */
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133 | }
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134 |
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135 | defents[dpecpos].nextdef = 0;
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136 | defents[dpecpos].stm = ptebuf.stmnum;
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137 | defents[dpecpos].adspec = ptebuf.paspec;
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138 | defents[dpecpos].adsuba = ptebuf.pasuba;
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139 | defents[dpecpos].addat1 = ptebuf.padat1;
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140 |
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141 | np = TRG_MASK & ptebuf.defnum;
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142 |
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143 | if (c EQ 1) {
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144 |
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145 | dpepred = 0;
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146 | defptr[np] = dpecpos;
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147 | }
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148 | /* |
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149 |
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150 | */
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151 | if (dpepred) {
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152 |
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153 | dpesucc = defents[dpepred].nextdef;
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154 | defents[dpecpos].nextdef = dpesucc;
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155 | defents[dpepred].nextdef = dpecpos;
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156 |
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157 | } else {
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158 |
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159 | if (c EQ -1) {
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160 |
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161 | dpesucc = defptr[np];
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162 | defents[dpecpos].nextdef = dpesucc;
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163 | defptr[np] = dpecpos;
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164 |
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165 | } else {
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166 |
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167 | defents[dpecpos].nextdef = 0;
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168 | }
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169 | }
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170 |
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171 | #if DEBUGSP
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172 | if (debugsw AND debugsp) {
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173 |
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174 | printf("stashp(): new defent created -- dpecpos = %d\n",
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175 | dpecpos);
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176 |
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177 | printf("stashp(): ENTERED\n");
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178 | SnapPTV("stashp");
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179 | }
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180 | #endif
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181 | return(SUCCESS);
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182 | }
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183 |
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184 | /* |
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185 |
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186 | */
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187 |
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188 | /*
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189 | =============================================================================
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190 | ptioerr() -- put up an I/O error message
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191 | =============================================================================
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192 | */
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193 |
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194 | void ptioerr(void)
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195 | {
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196 | int8_t erms[40];
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197 |
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198 | clrlsel();
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199 |
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200 | sprintf(erms, " errno = %d", errno);
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201 |
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202 | ldermsg("Couldn't read", " the patch table", erms,
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203 | LD_EMCF, LD_EMCB);
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204 | }
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205 |
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206 | /*
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207 | =============================================================================
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208 | nopatch() -- give an error message after running out of space
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209 | =============================================================================
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210 | */
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211 |
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212 | void nopatch(void)
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213 | {
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214 | clrlsel();
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215 |
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216 | ldermsg("Couldn't read", " the patch table.", " Ran out of space",
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217 | LD_EMCF, LD_EMCB);
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218 | }
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219 |
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220 | /* |
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221 |
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222 | */
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223 |
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224 | /*
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225 | =============================================================================
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226 | ptread() -- read a patch
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227 | =============================================================================
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228 | */
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229 |
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230 | int16_t ptread(FILE *fp)
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231 | {
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232 | register int16_t go;
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233 | int8_t cb;
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234 |
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235 | go = TRUE;
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236 |
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237 | ldwmsg(" Busy -- please stand by", (int8_t *)NULL, " Reading patches",
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238 | LCFBX10, LCBBX10);
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239 |
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240 | for (;;) {
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241 |
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242 | voidpb(); /* clear the patch buffer */
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243 |
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244 | ptecpos = ptepred = ptesucc = 0;
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245 |
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246 | #if DEBUGRE
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247 | if (debugsw AND debugre)
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248 | printf("ptread(): reading\n");
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249 | #endif
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250 | if (rd_ec(fp, &cb, 1L)) { /* get control byte */
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251 |
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252 | ptioerr();
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253 | return(FAILURE);
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254 | }
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255 |
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256 | if (0 EQ cb) /* if it's 0, we're done */
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257 | break;
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258 |
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259 | ptebuf.paspec = PE_TBIT | (PE_SPEC & cb);
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260 |
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261 | if (rd_ec(fp, &ptebuf.defnum, 4L)) /* DEF and STM */
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262 | return(FAILURE);
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263 | /* |
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264 |
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265 | */
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266 | switch (cb) {
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267 |
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268 | case PA_KEY:
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269 | case PA_TRG:
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270 |
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271 | if (rd_ec(fp, &ptebuf.pasuba, 2L))
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272 | return(FAILURE);
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273 |
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274 | if (rd_ec(fp, (int8_t *)&ptebuf.padat2 + 1, 1L))
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275 | return(FAILURE);
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276 |
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277 | break;
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278 |
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279 | case PA_PLS:
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280 | case PA_SCTL:
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281 |
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282 | if (rd_ec(fp, (int8_t *)&ptebuf.pasuba + 1, 1L))
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283 | return(FAILURE);
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284 |
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285 | if (rd_ec(fp, (int8_t *)&ptebuf.padat2 + 1, 1L))
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286 | return(FAILURE);
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287 |
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288 | break;
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289 |
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290 | /* |
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291 |
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292 | */
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293 | case PA_LED:
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294 |
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295 | if (rd_ec(fp, (int8_t *)&ptebuf.pasuba + 1, 1L))
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296 | return(FAILURE);
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297 |
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298 | if (rd_ec(fp, &ptebuf.padat1, 1L))
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299 | return(FAILURE);
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300 |
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301 | break;
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302 |
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303 | case PA_SLIN:
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304 |
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305 | if (rd_ec(fp, (int8_t *)&ptebuf.pasuba + 1, 1L))
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306 | return(FAILURE);
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307 |
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308 | if (rd_ec(fp, &ptebuf.padat1, 2L))
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309 | return(FAILURE);
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310 |
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311 | break;
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312 |
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313 | case PA_TUNE:
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314 |
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315 | if (rd_ec(fp, (int8_t *)&ptebuf.padat1 + 1, 1L))
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316 | return(FAILURE);
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317 |
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318 | break;
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319 | /* |
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320 |
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321 | */
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322 | case PA_RSET:
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323 | case PA_RADD:
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324 |
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325 | if (rd_ec(fp, (int8_t *)&ptebuf.pasuba + 1, 1L))
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326 | return(FAILURE);
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327 |
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328 | if (rd_ec(fp, (int8_t *)&ptebuf.padat1 + 1, 1L))
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329 | return(FAILURE);
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330 |
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331 | if (rd_ec(fp, (int8_t *)&ptebuf.padat2 + 1, 1L))
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332 | return(FAILURE);
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333 |
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334 | break;
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335 |
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336 | case PA_INST:
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337 | case PA_WAVA:
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338 | case PA_WAVB:
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339 | case PA_CNFG:
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340 |
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341 | if (rd_ec(fp, &ptebuf.pasuba, 1L))
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342 | return(FAILURE);
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343 |
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344 | if (rd_ec(fp, (int8_t *)&ptebuf.padat1 + 1, 1L))
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345 | return(FAILURE);
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346 |
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347 | break;
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348 |
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349 | case PA_OSC:
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350 | case PA_INDX:
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351 | case PA_FREQ:
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352 |
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353 | if (rd_ec(fp, &ptebuf.pasuba, 2L))
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354 | return(FAILURE);
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355 |
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356 | if (rd_ec(fp, (int8_t *)&ptebuf.padat1 + 1, 1L))
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357 | return(FAILURE);
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358 |
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359 | if (rd_ec(fp, &ptebuf.padat2, 2L))
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360 | return(FAILURE);
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361 |
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362 | break;
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363 | /* |
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364 |
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365 | */
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366 | case PA_LEVL:
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367 | case PA_FILT:
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368 | case PA_FILQ:
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369 | case PA_LOCN:
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370 | case PA_DYNM:
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371 |
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372 | if (rd_ec(fp, &ptebuf.pasuba, 1L))
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373 | return(FAILURE);
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374 |
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375 | if (rd_ec(fp, (int8_t *)&ptebuf.padat1 + 1, 1L))
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376 | return(FAILURE);
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377 |
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378 | if (rd_ec(fp, &ptebuf.padat2, 2L))
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379 | return(FAILURE);
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380 |
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381 | break;
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382 |
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383 | case PA_AUX:
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384 | case PA_RATE:
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385 | case PA_INTN:
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386 | case PA_DPTH:
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387 |
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388 | if (rd_ec(fp, (int8_t *)&ptebuf.padat1 + 1, 1L))
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389 | return(FAILURE);
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390 |
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391 | if (rd_ec(fp, &ptebuf.padat2, 2L))
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392 | return(FAILURE);
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393 |
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394 | break;
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395 |
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396 | case PA_VOUT:
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397 |
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398 | if (rd_ec(fp, (int8_t *)&ptebuf.pasuba + 1, 1L))
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399 | return(FAILURE);
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400 |
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401 | if (rd_ec(fp, (int8_t *)&ptebuf.padat1 + 1, 1L))
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402 | return(FAILURE);
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403 |
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404 | if (rd_ec(fp, &ptebuf.padat2, 2L))
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405 | return(FAILURE);
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406 |
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407 | break;
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408 | /* |
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409 |
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410 | */
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411 | default:
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412 |
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413 | return(FAILURE);
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414 | }
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415 |
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416 | #if DEBUGRE
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417 | if (debugsw AND debugre)
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418 | printf("\n\n");
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419 | #endif
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420 |
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421 | if (stashp()) { /* stash the patch */
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422 |
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423 | nopatch();
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424 | ptecpos = 0;
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425 | voidpb();
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426 | return(FAILURE);
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427 | }
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428 | }
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429 |
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430 | #if DEBUGRE
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431 | if (debugsw AND debugre)
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432 | printf("ptread(): terminator read -- end of patch file\n");
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433 | #endif
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434 |
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435 | ptecpos = 0;
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436 | voidpb();
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437 | return(SUCCESS);
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438 | }
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439 |
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