Mercurial > hg > dmlib

annotate dmtimeline.c @ 320:fc79b57d4646

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Add in unfinished timeline code.
author Matti Hamalainen <ccr@tnsp.org>
date Sun, 14 Oct 2012 14:24:11 +0300
parents
children f2b65aa474c9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
320
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1 #include "dmtimeline.h"
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2
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3
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4 DMEffect *dmEffects = NULL;
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5 int ndmEffects = 0, ndmEffectsAlloc = 0;
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6 void **dmEffectData = NULL;
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7
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8
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9 int dmRegisterEffect(const DMEffect *ef)
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10 {
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11 if (ef == NULL)
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12 return DMERR_NULLPTR;
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13
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14 // Allocate more space for effects
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15 if (ndmEffects + 1 >= ndmEffectsAlloc)
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16 {
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17 ndmEffectsAlloc += 16;
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18 dmEffects = dmRealloc(dmEffects, sizeof(DMEffect) * ndmEffectsAlloc);
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19 if (dmEffects == NULL)
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20 {
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21 dmError("Could not expand effects structure.\n");
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22 return DMERR_INIT_FAIL;
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23 }
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24
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25 dmEffectData = dmRealloc(dmEffectData, sizeof(void *) * ndmEffectsAlloc);
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26 if (dmEffectData == NULL)
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27 {
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28 dmError("Could not expand effects data structure.\n");
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29 return DMERR_INIT_FAIL;
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30 }
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31 }
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32
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33 // Copy effects structure
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34 memcpy(dmEffects + ndmEffects, ef, sizeof(DMEffect));
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35 dmEffectData[ndmEffects] = NULL;
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36
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37 ndmEffects++;
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38
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39 return DMERR_OK;
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40 }
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41
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42
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43 int dmInitializeEffects()
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44 {
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45 int i, res;
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46 for (i = 0; i < ndmEffects; i++)
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47 {
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48 if (dmEffects[i].init != NULL &&
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49 (res = dmEffects[i].init(&dmEffectData[i])) != DMERR_OK)
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50 return res;
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51 }
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52
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53 return DMERR_OK;
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54 }
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55
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56
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57 void dmShutdownEffects()
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58 {
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59 int i;
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60 for (i = 0; i < ndmEffects; i++)
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61 {
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62 if (dmEffects[i].shutdown != NULL)
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63 dmEffects[i].shutdown(dmEffectData[i]);
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64 }
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65 }
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66
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67
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68 DMEffect *dmFindEffect(const char *name, const int nparams)
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69 {
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70 int i;
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71 for (i = 0; i < ndmEffects; i++)
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72 {
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73 if (strcmp(dmEffects[i].name, name) == 0 &&
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74 dmEffects[i].nparams == nparams)
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75 return &dmEffects[i];
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76 }
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77 return NULL;
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78 }
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79
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80
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81 int dmLoadFloatValue(DMResource *res, DMFloat *val)
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82 {
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83 char tmp[DT_FLOAT_STORE_SIZE + 1];
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84 if (dmf_read_str(res, (Uint8 *) tmp, DT_FLOAT_STORE_SIZE) != DT_FLOAT_STORE_SIZE)
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85 return DMERR_FREAD;
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86
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87 tmp[DT_FLOAT_STORE_SIZE] = 0;
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88 *val = atof(tmp);
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89 return DMERR_OK;
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90 }
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91
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92
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93 int dmLoadTimelinePoints(DMResource *res, DMTimelinePoints *points)
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94 {
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95
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96 return DMERR_OK;
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97 }
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98
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99
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100 int dmLoadTimelineEventParam(DMResource *res, DMTimelineEventParam *param)
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101 {
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102 DMFTimelineEventParam hdr;
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103 int err;
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104 Uint16 len;
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105 Uint32 tmp32;
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106
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107 if (dmf_read_str(res, (Uint8 *) &hdr.name, sizeof(hdr.name)) != sizeof(hdr.name))
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108 return DMERR_FREAD;
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109 hdr.name[sizeof(hdr.name) - 1] = 0;
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110
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111 if (!dmf_read_le32(res, &hdr.type))
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112 return DMERR_FREAD;
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113
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114 param->name = dm_strdup(hdr.name);
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115 param->type = hdr.type;
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116
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117 switch (hdr.type)
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118 {
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119 case EFPT_POINTS:
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120 break;
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121
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122 case EFPT_INT:
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123 if (!dmf_read_le32(res, &tmp32))
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124 return DMERR_FREAD;
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125 param->vint = tmp32;
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126 break;
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127
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128 case EFPT_FLOAT:
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129 if ((err = dmLoadFloatValue(res, &param->vfloat)) != DMERR_OK)
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130 return err;
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131 break;
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132
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133 case EFPT_STRING:
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134 if (!dmf_read_le16(res, &len))
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135 return DMERR_FREAD;
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136
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137 param->vstr = dmMalloc((unsigned int)len + 1);
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138 if (dmf_read_str(res, (Uint8 *) param->vstr, len) != len)
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139 return DMERR_FREAD;
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140
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141 param->vstr[len] = 0;
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142 break;
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143 }
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144
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145 return DMERR_OK;
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146 }
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147
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148
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149 int dmLoadTimelineEvent(DMResource *res, DMTimelineEvent **pevent)
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150 {
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151 int param;
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152 DMFTimelineEvent hdr;
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153 DMTimelineEvent *event;
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154 if ((*pevent = event = dmMalloc0(sizeof(DMTimelineEvent))) == NULL)
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155 return DMERR_MALLOC;
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156
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157 // Get basic event data
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158 if (!dmf_read_le32(res, &hdr.startTime))
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159 return DMERR_FREAD;
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160 if (!dmf_read_le32(res, &hdr.duration))
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161 return DMERR_FREAD;
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diff changeset
162 if (dmf_read_str(res, (Uint8 *) &hdr.effectName, sizeof(hdr.effectName)) != sizeof(hdr.effectName))
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
163 return DMERR_FREAD;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
164 hdr.effectName[sizeof(hdr.effectName) - 1] = 0;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
165 if (!dmf_read_le32(res, &hdr.nparams))
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
166 return DMERR_FREAD;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
167
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
168 if (hdr.nparams > DT_MAX_EFFECT_PARAMS)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
169 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
170 dmError("Invalid number of parameters, %d > %d ('%s' @ %d:%d)\n",
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
171 hdr.nparams, DT_MAX_EFFECT_PARAMS, hdr.effectName, hdr.startTime, hdr.duration);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
172 return DMERR_INVALID_DATA;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
173 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
174
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
175 event->startTime = hdr.startTime;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
176 event->duration = hdr.duration;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
177 event->nparams = hdr.nparams;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
178 event->effect = dmFindEffect(hdr.effectName, hdr.nparams);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
179 if (event->effect == NULL)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
180 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
181 dmError("No matching registered effect found for '%s'.\n", hdr.effectName);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
182 return DMERR_INVALID_DATA;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
183 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
184
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
185 event->params = dmCalloc(event->nparams, sizeof(DMTimelineEventParam));
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
186 if (event->params == NULL)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
187 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
188 dmError("Could not allocate memory for timeline event parameters.\n");
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
189 return DMERR_MALLOC;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
190 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
191
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
192 for (param = 0; param < event->nparams; param++)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
193 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
194 int err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
195 if ((err = dmLoadTimelineEventParam(res, &(event->params[param]))) != DMERR_OK)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
196 return err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
197 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
198
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
199 return DMERR_OK;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
200 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
201
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
202
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
203 int dmLoadTimelineCurve(DMResource *res, DMTimelineCurve *curve)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
204 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
205 int err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
206
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
207 curve->enabled = dmfgetc(res);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
208 if ((err = dmLoadTimelinePoints(res, &(curve->points))) != DMERR_OK)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
209 return err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
210
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
211 return DMERR_OK;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
212 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
213
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
214
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
215 int dmLoadTimelineTrack(DMResource *res, DMTimelineTrack **ptrack)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
216 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
217 int event, err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
218 DMFTimelineTrack hdr;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
219 DMTimelineTrack *track;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
220 if ((*ptrack = track = dmMalloc0(sizeof(DMTimelineTrack))) == NULL)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
221 return DMERR_MALLOC;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
222
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
223 if (dmf_read_str(res, (Uint8 *) &hdr.name, sizeof(hdr.name)) != sizeof(hdr.name))
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
224 return DMERR_FREAD;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
225
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
226 hdr.enabled = dmfgetc(res);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
227 if (!dmf_read_le32(res, &hdr.nevents))
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
228 return DMERR_FREAD;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
229
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
230 if (hdr.nevents >= 4096)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
231 return DMERR_INVALID_DATA;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
232
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
233 if ((track->events = dmCalloc(hdr.nevents, sizeof(DMTimelineEvent *))) == NULL)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
234 return DMERR_MALLOC;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
235
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
236 hdr.name[sizeof(hdr.name) - 1] = 0;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
237 track->name = dm_strdup(hdr.name);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
238 track->enabled = hdr.enabled;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
239 track->nevents = hdr.nevents;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
240
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
241 for (event = 0; event < track->nevents; event++)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
242 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
243 if ((err = dmLoadTimelineEvent(res, &(track->events[event]))) != DMERR_OK)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
244 return err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
245 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
246
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
247 if ((err = dmLoadTimelineCurve(res, &(track->composite))) != DMERR_OK)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
248 return err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
249
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
250 return DMERR_OK;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
251 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
252
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
253
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
254 int dmLoadTimeline(DMResource *res, DMTimeline **ptl)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
255 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
256 int track, err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
257 DMFTimeline hdr;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
258 DMTimeline *tl;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
259 if ((*ptl = tl = dmMalloc0(sizeof(DMTimeline))) == NULL)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
260 return DMERR_MALLOC;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
261
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
262 // Read and check header
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
263 if (dmf_read_str(res, (Uint8 *) &hdr.magic, sizeof(hdr.magic)) != sizeof(hdr.magic))
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
264 return DMERR_FREAD;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
265
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
266 if (memcmp(hdr.magic, "SDMETLNE", sizeof(hdr.magic)) != 0)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
267 return DMERR_INVALID_DATA;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
268
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
269 if (dmf_read_str(res, (Uint8 *) &hdr.name, sizeof(hdr.name)) != sizeof(hdr.name))
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
270 return DMERR_FREAD;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
271
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
272 if (!dmf_read_le32(res, &hdr.ntracks))
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
273 return DMERR_FREAD;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
274
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
275 if (!dmf_read_le32(res, &hdr.duration))
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
276 return DMERR_FREAD;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
277
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
278 if (hdr.ntracks >= 64)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
279 return DMERR_INVALID_DATA;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
280
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
281 // Allocate track pointers
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
282 tl->tracks = (DMTimelineTrack **) dmCalloc(hdr.ntracks, sizeof(DMTimelineTrack *));
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
283 if (tl->tracks == NULL)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
284 return DMERR_MALLOC;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
285
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
286 // Copy rest
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
287 hdr.name[sizeof(hdr.name) - 1] = 0;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
288 tl->name = dm_strdup(hdr.name);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
289 tl->duration = hdr.duration;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
290 tl->ntracks = hdr.ntracks;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
291
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
292 // Read tracks
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
293 for (track = 0; track < tl->ntracks; track++)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
294 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
295 if ((err = dmLoadTimelineTrack(res, &(tl->tracks[track]))) != DMERR_OK)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
296 return err;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
297 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
298
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
299 return DMERR_OK;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
300 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
301
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
302
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
303 void dmFreeTimelinePoints(DMTimelinePoints *points)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
304 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
305 dmFree(points->points);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
306 points->points = NULL;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
307 points->npoints = points->nallocated = 0;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
308 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
309
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
310
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
311 void dmFreeTimelineTrack(DMTimelineTrack *track)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
312 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
313 if (track != NULL)
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
314 {
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
315 dmFree(track->name);
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
316 track->name = NULL;
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
317 dmFreeTimelinePoints(&(track->composite.points));
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
318 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
319 }
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
320
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
321
fc79b57d4646 Add in unfinished timeline code.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
322 void dmFreeTimeline(DMTimeline *tl)
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323 {
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324 if (tl != NULL)
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325 {
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326 int i;
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327 for (i = 0; i < tl->ntracks; i++)
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328 dmFreeTimelineTrack(tl->tracks[i]);
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329
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330 dmFree(tl->tracks);
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331 dmFree(tl->name);
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332 dmFree(tl->pevents);
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333 }
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334 }
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335
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336
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337 /* Prepare a loaded timeline for execution. Creates the "stacked" structure
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338 * of timeline data for efficient rendering.
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339 */
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340 int dmPrepareTimeline(DMTimeline *tl)
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341 {
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342 return DMERR_OK;
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343 }
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344
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345
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346 /* Seeks to specified position in the timeline. The execution function
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347 * only handles monotonously increasing time, going backwards will not work
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348 * there correctly, thus to seek freely this function must be used.
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349 */
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350 int dmSeekTimeline(DMTimeline *tl, int time)
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351 {
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352 return DMERR_OK;
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353 }
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354
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355
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356 /* "Executes", or rather renders a frame on the specified timeline position.
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357 */
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358 int dmExecuteTimeline(DMTimeline *tl, SDL_Surface *screen, int time)
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359 {
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360 return DMERR_OK;
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361 }