Mercurial > hg > dmlib
annotate src/dmengine.h @ 2294:7f6ba3b32f54
Cleanups.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Wed, 03 Jul 2019 10:28:43 +0300 |
| parents | 78a0f44aa8b5 |
| children | 9807ae37ad69 |
| rev | line source |
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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 |
| 863 | 5 * (C) Copyright 2012-2015 Tecnic Software productions (TNSP) |
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6 */ |
| 372 | 7 #ifndef DMENGINE_H |
| 8 #define DMENGINE_H | |
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9 |
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10 #include "dmlib.h" |
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11 #include <SDL_events.h> |
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12 #include <SDL_audio.h> |
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13 #include "dmres.h" |
| 368 | 14 #include "dmvecmat.h" |
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15 #include "dmcurves.h" |
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16 |
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17 #ifdef DM_USE_JSS |
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18 #include "jss.h" |
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19 #include "jssmod.h" |
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20 #include "jssmix.h" |
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21 #include "jssplr.h" |
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22 #endif |
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23 |
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24 |
| 317 | 25 #ifdef __cplusplus |
| 26 extern "C" { | |
| 27 #endif | |
| 28 | |
| 1153 | 29 // Video setup window size |
| 620 | 30 #define DM_VSETUP_WIDTH 640 |
| 31 #define DM_VSETUP_HEIGHT 480 | |
| 593 | 32 |
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33 |
| 593 | 34 // Video setup type |
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35 enum |
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36 { |
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37 DM_VSETUP_NONE = 0x00, // No video setup, just set window/screen to what demo specifies |
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38 DM_VSETUP_ASPECT = 0x01, // Only modes that match the optVidAspect aspect ratio are ok |
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39 DM_VSETUP_ANY = 0x02, // Any available mode is okay, the code can adapt |
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40 }; |
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41 |
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42 // Audio setup type |
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43 enum |
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44 { |
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45 DM_ASETUP_NONE = 0, |
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46 DM_ASETUP_JSS = 1, |
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47 DM_ASETUP_TREMOR = 2, |
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48 }; |
| 593 | 49 |
| 50 | |
| 317 | 51 |
| 368 | 52 #define DT_MAGIC_ID "SDMETLNE" |
| 53 #define DT_MAX_EFFECT_PARAMS 16 | |
| 54 #define DT_MAX_NAME_LENGTH 32 | |
| 55 #define DT_FLOAT_STORE_SIZE 16 | |
| 56 | |
| 57 | |
| 58 enum | |
| 59 { | |
| 60 EFIT_SET, // No interpolation, just "set" the value | |
| 61 EFIT_LINEAR, // Linear interpolation | |
| 62 EFIT_SMOOTH, // Smoothstep interpolation | |
| 63 }; | |
| 64 | |
| 65 enum | |
| 66 { | |
| 67 EFPT_INT, | |
| 68 EFPT_FLOAT, | |
| 69 EFPT_STRING, | |
| 70 EFPT_VECTOR, | |
| 71 EFPT_MATRIX, | |
| 72 }; | |
| 73 | |
| 74 | |
| 75 typedef struct | |
| 76 { | |
| 77 int type; // Interpolation type (EFIT_*) between this and next point | |
| 78 int time; // Offsets to event start, -1 == attach to event start, -2 = event end (if event) | |
| 79 | |
| 80 int vint; | |
| 81 DMFloat vfloat; | |
| 82 DMVector vector; | |
| 83 DMMatrix matrix; | |
| 84 } DMTimelinePoint; | |
| 85 | |
| 86 | |
| 87 typedef struct | |
| 88 { | |
| 89 int npoints, nallocated; | |
| 90 DMTimelinePoint *points; | |
| 91 } DMTimelinePoints; | |
| 92 | |
| 93 | |
| 94 typedef struct | |
| 95 { | |
| 96 char *name; // Name / description of the parameter | |
| 97 int type; // Type (EFPT_*) | |
| 98 | |
| 99 DMTimelinePoints pts; | |
| 100 char *vstr; | |
| 101 | |
| 102 // Current values (interpolated) | |
| 103 int vint; | |
| 104 DMFloat vfloat; | |
| 105 DMVector vvector; | |
| 106 DMMatrix vmatrix; | |
| 107 } DMTimelineEventParam; | |
| 108 | |
| 109 | |
| 110 typedef struct | |
| 111 { | |
| 112 char name[DT_MAX_NAME_LENGTH]; | |
| 113 Uint32 type; | |
| 114 } DMFTimelineEventParam; | |
| 115 | |
| 116 | |
| 117 struct DMEngineData; | |
| 118 | |
| 119 | |
| 849 | 120 typedef struct _DMEffect |
| 368 | 121 { |
| 122 char * name; | |
| 123 int type; | |
| 849 | 124 |
| 1688 | 125 // init() - called at demo start/loading phase |
| 849 | 126 int (*init)(struct DMEngineData *, const struct _DMEffect *eff, void **data); |
| 1688 | 127 |
| 128 // shutdown() - called at demo shutdown | |
| 849 | 129 void (*shutdown)(struct DMEngineData *, const struct _DMEffect *eff, void *data); |
| 1688 | 130 |
| 131 // called to render a frame | |
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132 int (*render)(struct DMEngineData *, const struct _DMEffect *eff, void *data, const DMTimelineEventParam *params, const int time); |
| 368 | 133 |
| 134 int nparams; | |
| 135 DMTimelineEventParam params[DT_MAX_EFFECT_PARAMS]; | |
| 136 } DMEffect; | |
| 137 | |
| 138 | |
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139 #ifdef DM_USE_TIMELINE |
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140 |
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141 |
| 368 | 142 typedef struct |
| 143 { | |
| 144 Uint32 start, duration; | |
| 145 char effectName[DT_MAX_NAME_LENGTH]; | |
| 146 Uint32 nparams; | |
| 147 } DMFTimelineEvent; | |
| 148 | |
| 149 | |
| 150 typedef struct | |
| 151 { | |
| 152 int start, duration; | |
| 153 DMEffect *effect; | |
| 154 int nparams; | |
| 155 DMTimelineEventParam *params; | |
| 156 } DMTimelineEvent; | |
| 157 | |
| 158 | |
| 159 typedef struct | |
| 160 { | |
| 161 BOOL enabled; | |
| 162 DMTimelinePoints points; | |
| 163 } DMTimelineCurve; | |
| 164 | |
| 165 | |
| 166 typedef struct | |
| 167 { | |
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168 Uint32 index, layer; |
| 368 | 169 char name[DT_MAX_NAME_LENGTH]; |
| 170 Uint8 enabled; | |
| 171 Uint32 nevents; | |
| 172 } DMFTimelineTrack; | |
| 173 | |
| 174 | |
| 175 typedef struct | |
| 176 { | |
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177 int index; // Track index |
| 1153 | 178 int layer; // Render order / layer |
| 368 | 179 char *name; // Name of the timeline track |
| 180 BOOL enabled; // Enabled? | |
| 181 | |
| 182 int nevents, nallocated; // Number of events | |
| 183 DMTimelineEvent **events; // Events | |
| 184 | |
| 185 DMTimelineCurve composite; // Composite curve (transparency of the "layer") | |
| 186 } DMTimelineTrack; | |
| 187 | |
| 188 | |
| 189 typedef struct | |
| 190 { | |
| 191 char magic[8]; | |
| 192 char name[DT_MAX_NAME_LENGTH]; | |
| 193 Uint32 ntracks; | |
| 194 Uint32 duration; | |
| 195 } DMFTimeline; | |
| 196 | |
| 197 | |
| 198 typedef struct | |
| 199 { | |
| 200 char *name; | |
| 201 int ntracks, nallocated, duration; | |
| 202 DMTimelineTrack **tracks; | |
| 203 } DMTimeline; | |
| 204 | |
| 205 | |
| 206 typedef struct | |
| 207 { | |
| 208 DMTimelineTrack *track; | |
| 209 DMTimelineEvent *event; | |
| 210 } DMPreparedEvent; | |
| 211 | |
| 212 | |
| 213 typedef struct _DMPreparedEventGroup | |
| 214 { | |
| 215 int start, end, nevents, nallocated; | |
| 216 DMPreparedEvent *events; | |
| 217 | |
| 218 struct _DMPreparedEventGroup *next, *prev; | |
| 219 } DMPreparedEventGroup; | |
| 220 | |
| 221 | |
| 222 typedef struct | |
| 223 { | |
| 224 int duration, ngroups, pos; | |
| 225 DMPreparedEventGroup **groups; | |
| 226 } DMPreparedTimeline; | |
| 227 | |
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228 #endif |
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229 |
| 368 | 230 |
| 367 | 231 typedef struct DMEngineData |
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232 { |
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233 DMResourceLib *resources; |
| 368 | 234 void **effectData; |
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235 |
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236 #ifdef DM_USE_TIMELINE |
| 354 | 237 DMResource *timeline; |
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238 DMTimeline *tl; |
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239 DMPreparedTimeline *ptl; |
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240 #endif |
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241 |
| 361 | 242 int frameTime, frameCount, |
| 243 startTime, endTime, | |
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244 startTimeAudio, offsetTime, |
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245 pauseTime; |
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246 |
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247 BOOL pauseFlag, paused, exitFlag; |
| 361 | 248 |
| 1153 | 249 // Rendering |
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250 SDL_Window *window; |
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251 SDL_Renderer *renderer; |
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252 |
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253 // Software rendering |
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254 SDL_Surface *screen; |
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255 SDL_Texture *texture; |
| 1153 | 256 |
| 257 // Events | |
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258 SDL_Event event; |
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259 |
| 1153 | 260 // Setup information |
| 593 | 261 int optVidWidth, optVidHeight, |
| 262 optVidDepth, optVFlags, | |
| 263 optVidAspect, optVidSetup; | |
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264 BOOL optVidNative; |
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265 |
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266 int optResFlags; |
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267 char *optPackFilename; |
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268 |
| 783 | 269 // Audio related |
| 754 | 270 SDL_AudioSpec optAfmt; |
| 271 int optAudioSetup; | |
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272 |
| 785 | 273 int audioStatus; // Current status of audio output (SDL_AUDIO_PLAYING, etc.) |
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274 DMMutex *audioStreamMutex; |
| 754 | 275 Uint8 * audioStreamBuf; |
| 785 | 276 size_t audioStreamLen; // Length in samples |
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277 Uint32 audioTimePos; // Approximate audio time (in milliseconds) |
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278 int audioSampleSize; // Size of one audio sample in bytes (incl. all channels) |
| 754 | 279 |
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280 // No-sound audio simulation thread stuff |
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281 SDL_Thread *audioSimThread; |
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282 Uint8 * audioSimBuf; |
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283 size_t audioSimBufSize; |
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284 BOOL audioSimDone; |
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285 int audioSimDelay; |
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286 |
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287 #ifdef DM_USE_JSS |
| 754 | 288 JSSMixer *jssDev; |
| 289 JSSPlayer *jssPlr; | |
| 290 int jssFormat; | |
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291 #endif |
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292 |
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293 #ifdef DM_USE_TREMOR |
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294 DMResource *audioRes; |
| 113 | 295 size_t audioPos; |
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296 #endif |
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297 |
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298 int (*demoInit)(struct DMEngineData *); |
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299 int (*demoInitPreVideo)(struct DMEngineData *); |
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300 int (*demoInitPostVideo)(struct DMEngineData *); |
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301 int (*demoRender)(struct DMEngineData *); |
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302 void (*demoShutdown)(struct DMEngineData *); |
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303 void (*demoQuit)(struct DMEngineData *); |
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304 } DMEngineData; |
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305 |
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306 |
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307 extern DMEffect *engineEffects; |
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308 extern int nengineEffects, nengineEffectsAlloc; |
| 368 | 309 |
| 310 | |
| 311 // Effect registration | |
| 312 int engineRegisterEffect(const DMEffect *ef); | |
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313 int engineInitializeEffects(DMEngineData *); |
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314 void engineShutdownEffects(DMEngineData *); |
| 368 | 315 DMEffect *engineFindEffect(const char *name, const int nparams); |
| 316 DMEffect *engineFindEffectByName(const char *name); | |
| 317 | |
| 318 | |
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319 #ifdef DM_USE_TIMELINE |
| 368 | 320 // Basic timeline handling |
| 321 int dmLoadTimeline(DMResource *res, DMTimeline **tl); | |
| 322 void dmFreeTimeline(DMTimeline *tl); | |
| 323 | |
| 324 void dmFreeTimelinePoints(DMTimelinePoints *points); | |
| 325 void dmFreeTimelineEventParam(DMTimelineEventParam *param); | |
| 326 void dmFreeTimelineEvent(DMTimelineEvent *event); | |
| 327 void dmFreeTimelineTrack(DMTimelineTrack *track); | |
| 328 | |
| 329 | |
| 330 // Execution related | |
| 331 int dmPrepareTimeline(DMTimeline *tl, DMPreparedTimeline *ptl); | |
| 332 void dmFreePreparedTimelineData(DMPreparedTimeline *ptl); | |
| 333 | |
| 334 int dmSeekTimeline(DMPreparedTimeline *tl, int time); | |
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335 int dmExecuteTimeline(DMPreparedTimeline *tl, DMEngineData *engine, int time); |
| 368 | 336 |
| 337 | |
| 338 // Editing/saving related functions | |
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339 int dmCopyTimelinePoints(const DMTimelinePoints *src, DMTimelinePoints *dst); |
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340 int dmCopyTimelineEventParam(const DMTimelineEventParam *src, DMTimelineEventParam *dst); |
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341 int dmCopyTimelineEvent(const DMTimelineEvent *src, DMTimelineEvent **pdst); |
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342 int dmCopyTimelineCurve(const DMTimelineCurve *src, DMTimelineCurve *dst); |
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343 int dmCopyTimelineTrack(const DMTimelineTrack *src, DMTimelineTrack **pdst); |
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344 int dmCopyTimeline(const DMTimeline *src, DMTimeline **pdst); |
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345 |
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346 int dmSaveTimeline(DMResource *res, const DMTimeline *tl); |
| 368 | 347 |
| 348 int dmTimelineNew(DMTimeline **tl, const char *name); | |
| 349 int dmTimelineAddTrack(DMTimeline *tl, DMTimelineTrack **track, const char *name); | |
| 350 int dmTimelineTrackAddEvent(DMTimelineTrack *track, int start, int duration, DMTimelineEvent **pev); | |
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351 int dmTimelineEventSetEffect(DMTimelineEvent *event, DMEffect *ef); |
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352 int dmTimelineEventSetEffectByIndex(DMTimelineEvent *event, const int index); |
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353 int dmTimelineEventSetEffectByName(DMTimelineEvent *event, const char *name); |
| 368 | 354 |
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355 #endif // DM_USE_TIMELINE |
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356 |
| 368 | 357 |
| 358 // Resource helpers | |
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359 #define engineGetResImage(eng, x, name) \ |
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360 do { \ |
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361 if ((x = (SDL_Surface *) engineGetResource(eng, name)) == NULL) \ |
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362 return DMERR_INIT_FAIL; \ |
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363 } while (0) |
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364 |
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365 #define engineGetResModule(eng, x, name) \ |
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366 do { \ |
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367 if ((x = (JSSModule *) engineGetResource(eng, name)) == NULL) \ |
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368 return DMERR_INIT_FAIL; \ |
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369 } while (0) |
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370 |
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371 #define engineFindResource(eng, name) dmResourceFind((eng)->resources, name) |
| 367 | 372 |
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373 |
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374 int engineClassifier(DMResource *res); |
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375 void * engineGetResource(DMEngineData *eng, const char *name); |
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376 int engineGetTime(DMEngineData *eng, int t); |
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377 int engineGetTimeDTi(DMEngineData *eng); |
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378 int engineGetTick(DMEngineData *eng); |
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379 float engineGetTimeDT(DMEngineData *eng); |
| 368 | 380 |
| 846 | 381 int engineInitAudioParts(DMEngineData *engine); |
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382 void engineAudioCallback(void *userdata, Uint8 *stream, int len); |
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383 void enginePauseAudio(DMEngineData *engine, int status); |
| 593 | 384 int engineGetVideoAspect(int width, int height); |
| 385 | |
| 386 | |
| 368 | 387 // Implemented in actual demo code |
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388 int demoPreInit(DMEngineData *eng); |
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389 |
| 317 | 390 |
| 391 #ifdef __cplusplus | |
| 392 } | |
| 393 #endif | |
| 394 | |
| 372 | 395 #endif // DMENGINE_H |