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, "");
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, node->name);
93 static void proc_track(struct ts_node *node, const char *pname)
95 char *name, *fullname;
98 static long io_read(void *buf, size_t bytes, void *uptr)
100 return ass_fread(buf, 1, bytes, uptr);
104 void dsys_destroy(void)
108 for(i=0; i<dsys.num_screens; i++) {
109 anm_destroy_track(&dsys.screens[i]->track);
110 if(dsys.screens[i]->destroy) {
111 dsys.screens[i]->destroy();
114 dsys.num_screens = 0;
116 darr_free(dsys.track);
117 darr_free(dsys.value);
118 rb_free(dsys.trackmap);
121 void dsys_update(void)
123 int i, j, sort_needed = 0;
124 struct demoscreen *scr;
126 dsys.tmsec = time_msec;
129 for(i=0; i<dsys.num_screens; i++) {
130 scr = dsys.screens[i];
131 scr->vis = anm_get_value(&scr->track, dsys.tmsec);
133 if(scr->vis > 0.0f) {
135 if(scr->start) scr->start();
138 if(scr->update) scr->update(dsys.tmsec);
140 if(dsys.num_act && scr->prio != dsys.act[dsys.num_act - 1]->prio) {
143 dsys.act[dsys.num_act++] = scr;
146 if(scr->stop) scr->stop();
153 for(i=0; i<dsys.num_act; i++) {
154 for(j=i+1; j<dsys.num_act; j++) {
155 if(dsys.act[j]->prio > dsys.act[j - 1]->prio) {
156 void *tmp = dsys.act[j];
157 dsys.act[j] = dsys.act[j - 1];
158 dsys.act[j - 1] = tmp;
164 /* evaluate tracks */
165 for(i=0; i<dsys.num_tracks; i++) {
166 dsys.value[i] = anm_get_value(dsys.track + i, dsys.tmsec);
170 /* TODO: do something about draw ordering of the active screens */
174 for(i=0; i<dsys.num_act; i++) {
187 void dsys_seek_abs(long tm)
191 void dsys_seek_rel(long dt)
195 void dsys_seek_norm(float t)
200 struct demoscreen *dsys_find_screen(const char *name)
206 for(i=0; i<dsys.num_screens; i++) {
207 if(strcmp(dsys.screens[i]->name, name) == 0) {
208 return dsys.screens[i];
214 void dsys_run_screen(struct demoscreen *scr)
219 if(dsys.num_act == 1 && dsys.act[0] == scr) return;
221 for(i=0; i<dsys.num_act; i++) {
222 if(dsys.act[i]->stop) dsys.act[i]->stop();
223 dsys.act[i]->active = 0;
229 if(scr->start) scr->start();
234 int dsys_add_screen(struct demoscreen *scr)
236 if(!scr->name || !scr->init || !scr->draw) {
237 fprintf(stderr, "dsys_add_screen: invalid screen\n");
240 if(anm_init_track(&scr->track) == -1) {
241 fprintf(stderr, "dsys_add_screen: failed to initialize keyframe track\n");
244 anm_set_track_interpolator(&scr->track, ANM_INTERP_LINEAR);
245 anm_set_track_extrapolator(&scr->track, ANM_EXTRAP_CLAMP);
246 anm_set_track_default(&scr->track, 0);
248 dsys.screens[dsys.num_screens++] = scr;
252 int dsys_add_track(const char *name)
254 struct anm_track trk;
257 if(rb_find(dsys.trackmap, (char*)name)) {
258 fprintf(stderr, "ignoring duplicate track: %s\n", name);
262 idx = darr_size(dsys.track);
263 darr_push(dsys.track, &trk);
264 darr_pushf(dsys.value, 0);
266 if(rb_insert(dsys.trackmap, (char*)name, (void*)(intptr_t)idx) == -1) {
267 fprintf(stderr, "failed to insert to track map: %s\n", name);
273 int dsys_find_track(const char *name)
275 struct rbnode *n = rb_find(dsys.trackmap, (char*)name);
278 return (intptr_t)n->data;
281 float dsys_value(const char *name)
283 int idx = dsys_find_track(name);
284 return idx == -1 ? 0.0f : dsys.value[idx];