10 void regscr_testa(void);
11 void regscr_testb(void);
13 static void proc_screen_script(struct demoscreen *scr, struct ts_node *node);
14 static void proc_track(struct ts_node *node, const char *pname);
15 static long io_read(void *buf, size_t bytes, void *uptr);
18 int dsys_init(const char *fname)
21 struct ts_io io = {0};
22 struct ts_node *ts, *tsnode;
23 struct demoscreen *scr;
25 memset(&dsys, 0, sizeof dsys);
26 if(!(dsys.trackmap = rb_create(RB_KEY_STRING))) {
29 dsys.track = darr_alloc(0, sizeof *dsys.track);
30 dsys.value = darr_alloc(0, sizeof *dsys.value);
35 for(i=0; i<dsys.num_screens; i++) {
36 if(dsys.screens[i]->init() == -1) {
37 fprintf(stderr, "failed to initialize demo screen: %s\n", dsys.screens[i]->name);
42 if(!fname || !(io.data = ass_fopen(fname, "rb"))) {
43 dsys_run_screen(dsys.screens[0]);
48 if(!(ts = ts_load_io(&io)) || strcmp(ts->name, "demo") != 0) {
50 fprintf(stderr, "failed to read demoscript\n");
54 tsnode = ts->child_list;
56 if(strcmp(tsnode->name, "screen") == 0 &&
57 (scr = dsys_find_screen(ts_get_attr_str(tsnode, "name", 0)))) {
58 proc_screen_script(scr, tsnode);
60 } else if(strcmp(tsnode->name, "track") == 0) {
61 proc_track(tsnode, 0);
63 tsnode = tsnode->next;
70 static void proc_screen_script(struct demoscreen *scr, struct ts_node *node)
76 attr = node->attr_list;
78 if(sscanf(attr->name, "key_%ld", &tm) == 1 && attr->val.type == TS_NUMBER) {
79 anm_set_value(&scr->track, tm, attr->val.fnum);
84 sub = node->child_list;
86 if(strcmp(sub->name, "track") == 0) {
87 proc_track(sub, scr->name);
93 static void proc_track(struct ts_node *node, const char *pname)
99 struct anm_track *trk;
101 if(!(name = (char*)ts_get_attr_str(node, "name", 0))) {
105 buf = alloca(strlen(name) + strlen(pname) + 2);
106 sprintf(buf, "%s.%s", pname, name);
110 if((tidx = dsys_add_track(name)) == -1) {
113 trk = dsys.track + tidx;
115 attr = node->attr_list;
117 if(sscanf(attr->name, "key_%ld", &tm) == 1 && attr->val.type == TS_NUMBER) {
118 anm_set_value(trk, tm, attr->val.fnum);
124 static long io_read(void *buf, size_t bytes, void *uptr)
126 return ass_fread(buf, 1, bytes, uptr);
130 void dsys_destroy(void)
134 for(i=0; i<dsys.num_screens; i++) {
135 anm_destroy_track(&dsys.screens[i]->track);
136 if(dsys.screens[i]->destroy) {
137 dsys.screens[i]->destroy();
140 dsys.num_screens = 0;
142 darr_free(dsys.track);
143 darr_free(dsys.value);
144 rb_free(dsys.trackmap);
147 void dsys_update(void)
149 int i, j, sort_needed = 0;
150 struct demoscreen *scr;
152 dsys.tmsec = time_msec;
155 for(i=0; i<dsys.num_screens; i++) {
156 scr = dsys.screens[i];
157 scr->vis = anm_get_value(&scr->track, dsys.tmsec);
159 if(scr->vis > 0.0f) {
161 if(scr->start) scr->start();
164 if(scr->update) scr->update(dsys.tmsec);
166 if(dsys.num_act && scr->prio != dsys.act[dsys.num_act - 1]->prio) {
169 dsys.act[dsys.num_act++] = scr;
172 if(scr->stop) scr->stop();
179 for(i=0; i<dsys.num_act; i++) {
180 for(j=i+1; j<dsys.num_act; j++) {
181 if(dsys.act[j]->prio > dsys.act[j - 1]->prio) {
182 void *tmp = dsys.act[j];
183 dsys.act[j] = dsys.act[j - 1];
184 dsys.act[j - 1] = tmp;
190 /* evaluate tracks */
191 for(i=0; i<dsys.num_tracks; i++) {
192 dsys.value[i] = anm_get_value(dsys.track + i, dsys.tmsec);
196 /* TODO: do something about draw ordering of the active screens */
200 for(i=0; i<dsys.num_act; i++) {
213 void dsys_seek_abs(long tm)
217 void dsys_seek_rel(long dt)
221 void dsys_seek_norm(float t)
226 struct demoscreen *dsys_find_screen(const char *name)
232 for(i=0; i<dsys.num_screens; i++) {
233 if(strcmp(dsys.screens[i]->name, name) == 0) {
234 return dsys.screens[i];
240 void dsys_run_screen(struct demoscreen *scr)
245 if(dsys.num_act == 1 && dsys.act[0] == scr) return;
247 for(i=0; i<dsys.num_act; i++) {
248 if(dsys.act[i]->stop) dsys.act[i]->stop();
249 dsys.act[i]->active = 0;
255 if(scr->start) scr->start();
260 int dsys_add_screen(struct demoscreen *scr)
262 if(!scr->name || !scr->init || !scr->draw) {
263 fprintf(stderr, "dsys_add_screen: invalid screen\n");
266 if(anm_init_track(&scr->track) == -1) {
267 fprintf(stderr, "dsys_add_screen: failed to initialize keyframe track\n");
270 anm_set_track_interpolator(&scr->track, ANM_INTERP_LINEAR);
271 anm_set_track_extrapolator(&scr->track, ANM_EXTRAP_CLAMP);
272 anm_set_track_default(&scr->track, 0);
274 dsys.screens[dsys.num_screens++] = scr;
278 int dsys_add_track(const char *name)
280 struct anm_track trk;
283 if(rb_find(dsys.trackmap, (char*)name)) {
284 fprintf(stderr, "ignoring duplicate track: %s\n", name);
288 idx = darr_size(dsys.track);
289 darr_push(dsys.track, &trk);
290 darr_pushf(dsys.value, 0);
292 anm_init_track(dsys.track + idx);
294 if(rb_insert(dsys.trackmap, (char*)name, (void*)(intptr_t)idx) == -1) {
295 fprintf(stderr, "failed to insert to track map: %s\n", name);
298 dsys.num_tracks = idx + 1;
302 int dsys_find_track(const char *name)
304 struct rbnode *n = rb_find(dsys.trackmap, (char*)name);
307 return (intptr_t)n->data;
310 float dsys_value(const char *name)
312 int idx = dsys_find_track(name);
313 return idx == -1 ? 0.0f : dsys.value[idx];