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annotate src/dmengine.c @ 845:1d3d220fb5cc

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Fix audio playback.
author Matti Hamalainen <ccr@tnsp.org>
date Tue, 21 Oct 2014 10:31:03 +0300
parents 1e5cf1144f36
children 05a3ee1ca964
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1 /*
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2 * dmlib
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3 * -- Demo engine / editor common code and definitions
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4 * Programmed and designed by Matti 'ccr' Hamalainen
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5 * (C) Copyright 2012-2013 Tecnic Software productions (TNSP)
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6 */
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7 #include "dmengine.h"
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8 #include "dmimage.h"
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9
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10
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11 #ifdef DM_USE_TREMOR
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12 #include <tremor/ivorbiscodec.h>
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13 #include <tremor/ivorbisfile.h>
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14 #endif
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15
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16
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17 DMEngineData engine;
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18 DMEffect *engineEffects = NULL;
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19 int nengineEffects = 0, nengineEffectsAlloc = 0;
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20
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21
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22 int engineRegisterEffect(const DMEffect *ef)
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23 {
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24 if (ef == NULL)
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25 return DMERR_NULLPTR;
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26
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27 // Allocate more space for effects
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28 if (nengineEffects + 1 >= nengineEffectsAlloc)
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29 {
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30 nengineEffectsAlloc += 16;
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31 engineEffects = dmRealloc(engineEffects, sizeof(DMEffect) * nengineEffectsAlloc);
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32 if (engineEffects == NULL)
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33 {
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34 dmError("Could not expand effects structure.\n");
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35 return DMERR_INIT_FAIL;
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36 }
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37 }
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38
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39 // Copy effects structure
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40 memcpy(engineEffects + nengineEffects, ef, sizeof(DMEffect));
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41 nengineEffects++;
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42
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43 return DMERR_OK;
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44 }
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45
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46
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47 int engineInitializeEffects(DMEngineData *engine)
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48 {
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49 int i, res;
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50
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51 dmFree(engine->effectData);
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52 engine->effectData = dmCalloc(nengineEffectsAlloc, sizeof(void *));
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53 if (engine->effectData == NULL)
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54 {
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55 dmError("Could not expand effects data structure.\n");
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56 return DMERR_INIT_FAIL;
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57 }
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58
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59 for (i = 0; i < nengineEffects; i++)
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60 {
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61 if (engineEffects[i].init != NULL &&
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62 (res = engineEffects[i].init(engine, &(engine->effectData[i]))) != DMERR_OK)
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63 return res;
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64 }
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65
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66 return DMERR_OK;
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67 }
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68
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69
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70 void engineShutdownEffects(DMEngineData *engine)
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71 {
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72 if (engine != NULL && engine->effectData != NULL)
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73 {
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74 int i;
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75 for (i = 0; i < nengineEffects; i++)
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76 {
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77 if (engineEffects[i].shutdown != NULL)
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78 engineEffects[i].shutdown(engine, engine->effectData[i]);
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79 }
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80 dmFree(engine->effectData);
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81 engine->effectData = NULL;
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82 }
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83 }
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84
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85
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86 DMEffect *engineFindEffect(const char *name, const int nparams)
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87 {
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88 int i;
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89 for (i = 0; i < nengineEffects; i++)
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90 {
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91 if (strcmp(engineEffects[i].name, name) == 0 &&
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92 engineEffects[i].nparams == nparams)
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93 return &engineEffects[i];
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94 }
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95 return NULL;
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96 }
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97
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98
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99 DMEffect *engineFindEffectByName(const char *name)
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100 {
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101 int i;
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102 for (i = 0; i < nengineEffects; i++)
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103 {
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104 if (strcmp(engineEffects[i].name, name) == 0)
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105 return &engineEffects[i];
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106 }
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107 return NULL;
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108 }
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109
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110
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111 static int engineResImageLoad(DMResource *res)
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112 {
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113 SDL_Surface *img = dmLoadImage(res);
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114 if (res != NULL)
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115 {
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116 res->resData = img;
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117 return DMERR_OK;
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118 }
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119 else
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120 return dmferror(res);
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121 }
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122
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123
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124 static void engineResImageFree(DMResource *res)
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125 {
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126 SDL_FreeSurface((SDL_Surface *)res->resData);
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127 }
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128
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129 static BOOL engineResImageProbe(DMResource *res, const char *fext)
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130 {
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131 (void) res;
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132 return fext != NULL && (strcasecmp(fext, ".jpg") == 0 || strcasecmp(fext, ".png") == 0);
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133 }
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134
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135
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136 #ifdef JSS_SUP_XM
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137 static int engineResXMModuleLoad(DMResource *res)
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138 {
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139 return jssLoadXM(res, (JSSModule **) &(res->resData), FALSE);
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140 }
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141
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142 static void engineResXMModuleFree(DMResource *res)
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143 {
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144 jssFreeModule((JSSModule *) res->resData);
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145 }
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146
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147 static BOOL engineResXMModuleProbe(DMResource *res, const char *fext)
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148 {
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149 (void) res;
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150 return fext != NULL && strcasecmp(fext, ".xm") == 0;
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151 }
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152 #endif
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153
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154
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155 #ifdef JSS_SUP_JSSMOD
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156 static int engineResJSSModuleLoad(DMResource *res)
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157 {
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158 return jssLoadJSSMOD(res, (JSSModule **) &(res->resData), FALSE);
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159 }
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160
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161 static void engineResJSSModuleFree(DMResource *res)
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162 {
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163 jssFreeModule((JSSModule *) res->resData);
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164 }
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165
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166 static BOOL engineResJSSModuleProbe(DMResource *res, const char *fext)
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167 {
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168 (void) res;
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169 return fext != NULL &&
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170 (strcasecmp(fext, ".jss") == 0 || strcasecmp(fext, ".jmod") == 0);
342
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171 }
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172 #endif
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173
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174
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175 #ifdef DM_USE_TREMOR
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176 static size_t vorbisFileRead(void *ptr, size_t size, size_t nmemb, void *datasource)
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177 {
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178 return dmfread(ptr, size, nmemb, (DMResource *) datasource);
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179 }
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180
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181 static int vorbisFileSeek(void *datasource, ogg_int64_t offset, int whence)
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182 {
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183 return dmfseek((DMResource *) datasource, offset, whence);
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184 }
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185
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186 static int vorbisFileClose(void *datasource)
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187 {
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188 (void) datasource;
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189 return 0;
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190 }
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191
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192 static long vorbisFileTell(void *datasource)
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193 {
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194 return dmftell((DMResource *) datasource);
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195 }
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196
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197
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198 static ov_callbacks vorbisFileCBS =
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199 {
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200 vorbisFileRead,
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201 vorbisFileSeek,
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202 vorbisFileClose,
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203 vorbisFileTell
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204 };
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205
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206 static int engineResVorbisLoad(DMResource *res)
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207 {
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208 OggVorbis_File vf;
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209
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210 dmMsg(1, "vorbisfile '%s', %d bytes resource loading\n",
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211 res->filename, res->rawSize);
342
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212
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213 if (ov_open_callbacks(res, &vf, NULL, 0, vorbisFileCBS) < 0)
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214 return DMERR_FOPEN;
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215
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216 res->resSize = ov_pcm_total(&vf, -1) * 2 * 2;
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217 if ((res->resData = dmMalloc(res->resSize + 16)) == NULL)
342
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218 {
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219 ov_clear(&vf);
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220 return DMERR_MALLOC;
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221 }
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222
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223 dmMsg(1, "rdataSize=%d bytes?\n", res->resSize);
342
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224
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225 BOOL eof = FALSE;
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226 int left = res->resSize;
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227 char *ptr = res->resData;
342
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228 int current_section;
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229 while (!eof && left > 0)
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230 {
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231 int ret = ov_read(&vf, ptr, left > 4096 ? 4096 : left, &current_section);
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232 if (ret == 0)
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233 eof = TRUE;
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234 else
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235 if (ret < 0)
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236 {
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237 ov_clear(&vf);
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238 return DMERR_INVALID_DATA;
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239 }
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240 else
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241 {
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242 left -= ret;
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243 ptr += ret;
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244 }
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245 }
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246
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247 ov_clear(&vf);
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248 return DMERR_OK;
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249 }
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250
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251 static void engineResVorbisFree(DMResource *res)
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252 {
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253 dmFree(res->resData);
342
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254 }
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255
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256 static BOOL engineResVorbisProbe(DMResource *res, const char *fext)
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257 {
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258 (void) res;
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259 return fext != NULL && (strcasecmp(fext, ".ogg") == 0);
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260 }
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261 #endif
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262
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263
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264 static DMResourceDataOps engineResOps[] =
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265 {
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266 {
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267 engineResImageProbe,
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268 engineResImageLoad,
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269 engineResImageFree
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270 },
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271
779
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272 #ifdef JSS_SUP_JSSMOD
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273 {
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274 engineResJSSModuleProbe,
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275 engineResJSSModuleLoad,
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276 engineResJSSModuleFree
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277 },
954b1b392c8b Restore old note frequency calculation for now.
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diff changeset
278 #endif
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279
342
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280 #ifdef JSS_SUP_XM
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281 {
779
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282 engineResXMModuleProbe,
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283 engineResXMModuleLoad,
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284 engineResXMModuleFree
342
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285 },
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diff changeset
286 #endif
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287
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288 #ifdef DM_USE_TREMOR
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289 {
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290 engineResVorbisProbe,
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291 engineResVorbisLoad,
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292 engineResVorbisFree
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parents:
diff changeset
293 },
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parents:
diff changeset
294 #endif
779
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diff changeset
295
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
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diff changeset
296 };
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297
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diff changeset
298 static const int nengineResOps = sizeof(engineResOps) / sizeof(engineResOps[0]);
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299
c6ec970dc3cf Separate some demo engine parts to two different modules.
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diff changeset
300
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diff changeset
301 int engineClassifier(DMResource *res)
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
302 {
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
303 int i;
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
304 char *fext;
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
305
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
306 if (res == NULL)
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
307 return DMERR_NULLPTR;
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
308
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
309 fext = strrchr(res->filename, '.');
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
310 for (i = 0; i < nengineResOps; i++)
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
311 {
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
312 DMResourceDataOps *rops = &engineResOps[i];
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
313 if (rops->probe != NULL && rops->probe(res, fext))
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
314 {
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
315 res->rops = rops;
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
316 return DMERR_OK;
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
317 }
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
318 }
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
319
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
320 return DMERR_OK;
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
321 }
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
322
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
323
366
38e10b5f4e09 Work towards base engine re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
324 void *engineGetResource(DMEngineData *eng, const char *name)
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
325 {
366
38e10b5f4e09 Work towards base engine re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
326 DMResource *res;
38e10b5f4e09 Work towards base engine re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
327 if (eng != NULL &&
721
bb14d7907eb2 Rename many pack & resource handling functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 642
diff changeset
328 (res = dmResourceFind(eng->resources, name)) != NULL &&
bb14d7907eb2 Rename many pack & resource handling functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 642
diff changeset
329 res->resData != NULL)
bb14d7907eb2 Rename many pack & resource handling functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 642
diff changeset
330 return res->resData;
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
331 else
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
332 {
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
333 dmError("Could not find resource '%s'.\n", name);
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
334 return NULL;
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
335 }
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
336 }
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
337
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
338
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
339 #ifdef DM_USE_JSS
366
38e10b5f4e09 Work towards base engine re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
340 void engineGetJSSInfo(DMEngineData *eng, BOOL *playing, int *order, JSSPattern **pat, int *npattern, int *row)
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
341 {
763
ad512e54c689 Fix 10L in engine base code.
Matti Hamalainen <ccr@tnsp.org>
parents: 721
diff changeset
342 JSS_LOCK(eng->jssPlr);
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
343
787
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
344 *playing = eng->jssPlr->isPlaying;
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
345 *row = eng->jssPlr->row;
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
346 *pat = eng->jssPlr->pattern;
763
ad512e54c689 Fix 10L in engine base code.
Matti Hamalainen <ccr@tnsp.org>
parents: 721
diff changeset
347 *npattern = eng->jssPlr->npattern;
787
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
348 *order = eng->jssPlr->order;
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
349
763
ad512e54c689 Fix 10L in engine base code.
Matti Hamalainen <ccr@tnsp.org>
parents: 721
diff changeset
350 JSS_UNLOCK(eng->jssPlr);
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
351 }
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
352
785
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
353
366
38e10b5f4e09 Work towards base engine re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
354 void engineGetJSSChannelInfo(DMEngineData *eng, const int channel, int *ninst, int *nextInst, int *freq, int *note)
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
355 {
763
ad512e54c689 Fix 10L in engine base code.
Matti Hamalainen <ccr@tnsp.org>
parents: 721
diff changeset
356 JSS_LOCK(eng->jssPlr);
787
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
357
763
ad512e54c689 Fix 10L in engine base code.
Matti Hamalainen <ccr@tnsp.org>
parents: 721
diff changeset
358 JSSPlayerChannel *chn = &(eng->jssPlr->channels[channel]);
787
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
359 *ninst = chn->ninstrument;
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
360 *nextInst = chn->nextInstrument;
787
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
361 *freq = chn->freq;
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
362 *note = chn->note;
e8153e8a948e Merged.
Matti Hamalainen <ccr@tnsp.org>
parents: 785
diff changeset
363
763
ad512e54c689 Fix 10L in engine base code.
Matti Hamalainen <ccr@tnsp.org>
parents: 721
diff changeset
364 JSS_UNLOCK(eng->jssPlr);
342
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
365 }
c6ec970dc3cf Separate some demo engine parts to two different modules.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
366 #endif
367
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
367
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
368
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
369 int engineGetTick(DMEngineData *engine)
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
370 {
390
a7ee3567f718 Remove adjustTime variable, it is not needed anymore.
Matti Hamalainen <ccr@tnsp.org>
parents: 369
diff changeset
371 return engine->frameTime - engine->startTime;
367
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
372 }
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
373
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
374
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
375 float engineGetTimeDT(DMEngineData *engine)
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
376 {
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
377 return (float) engineGetTick(engine) / 1000.0f;
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
378 }
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
379
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
380
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
381 int engineGetTimeDTi(DMEngineData *engine)
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
382 {
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
383 return (float) engineGetTick(engine) / 1000;
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
384 }
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
385
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
386
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
387 int engineGetTime(DMEngineData *engine, int t)
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
388 {
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
389 return engineGetTick(engine) - (1000 * t);
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
390 }
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
391
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
392
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
393 int engineGetDT(DMEngineData *engine, int t)
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
394 {
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
395 return engineGetTime(engine, t) / 1000;
9875c65029af Work towards re-entrancy.
Matti Hamalainen <ccr@tnsp.org>
parents: 366
diff changeset
396 }
784
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
397
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
398
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
399 void engineAudioCallback(void *userdata, Uint8 *stream, int len)
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
400 {
845
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
401 DMEngineData *engine = (DMEngineData *) userdata;
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
402
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
403 if (engine == NULL)
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
404 return;
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
405
845
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
406 dmMutexLock(engine->audioStreamMutex);
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
407 engine->audioStreamBuf = stream;
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
408 engine->audioStreamLen = len / engine->audioSampleSize;
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
409 engine->audioTimePos += (1000 * engine->audioStreamLen) / engine->optAfmt.freq;
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
410
845
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
411 if (engine->paused)
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
412 {
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
413 memset(stream, 0, len);
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
414 }
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
415 else
845
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
416 switch (engine->optAudioSetup)
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
417 {
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
418 #ifdef DM_USE_JSS
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
419 case DM_ASETUP_JSS:
845
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
420 if (engine->jssDev != NULL)
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
421 jvmRenderAudio(engine->jssDev, stream, len / engine->audioSampleSize);
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
422 break;
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
423 #endif
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
424 #ifdef DM_USE_TREMOR
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
425 case DM_ASETUP_TREMOR:
845
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
426 if (engine->audioPos + len >= engine->audioRes->resSize)
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
427 engine->exitFlag = TRUE;
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
428 else
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
429 {
845
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
430 memcpy(stream, engine->audioRes->resData + engine->audioPos, len);
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
431 engine->audioPos += len;
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
432 }
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
433 break;
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
434 #endif
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
435
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
436 default:
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
437 break;
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
438 }
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
439
845
1d3d220fb5cc Fix audio playback.
Matti Hamalainen <ccr@tnsp.org>
parents: 812
diff changeset
440 dmMutexUnlock(engine->audioStreamMutex);
791
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
441 }
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
442
7ea8775b265a Move audio callback code to dmengine.
Matti Hamalainen <ccr@tnsp.org>
parents: 787
diff changeset
443
785
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
444 void enginePauseAudio(int status)
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
445 {
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
446 if (status)
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
447 engine.audioStatus = SDL_AUDIO_PAUSED;
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
448 else
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
449 engine.audioStatus = SDL_AUDIO_PLAYING;
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
450
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
451 SDL_PauseAudio(status);
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
452 }
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
453
dbf5772690a8 Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 784
diff changeset
454
784
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
455 int engineGetVideoAspect(int width, int height)
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
456 {
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
457 if (width > 0 && height > 0)
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
458 return (width * 1000) / height;
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
459 else
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
460 return 1;
35b881454ea2 Move a function implementation.
Matti Hamalainen <ccr@tnsp.org>
parents: 779
diff changeset
461 }