shithub: renderfs

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fix client management.

--- a/fs.c

+++ b/fs.c

@@ -21,8 +21,8 @@

 struct Client

 {

+	Ref;

 	ulong slot;

-	int inuse;

 	Camera *cam;

 };

@@ -78,6 +78,8 @@

 static LightSource light = {{0,100,100,1}, {1,1,1,1}, LIGHT_POINT};

+static Client *getclient(ulong);

+

 static Point3

 vshader(VSparams *sp)

 {

@@ -85,7 +87,7 @@

 	Point3 pos, lightdir;

 	double intens;

-	c = &clients[0];	/* TODO figure out a way to address the correct client */

+	c = getclient(0);	/* TODO figure out a way to address the correct client */

 	pos = model2world(sp->su->entity, sp->v->p);

 	lightdir = normvec3(subpt3(light.p, pos));

@@ -149,6 +151,20 @@

 	return cw*nc;

 }

+static void

+resetcamera(Camera *c)

+{

+	rmviewport(c->vp);

+	c->vp = mkviewport(Rect(0,0,320,200));

+	c->fov = 40*DEG;

+	c->clip.n = 0.01;

+	c->clip.f = 1000;

+	c->projtype = PERSPECTIVE;

+	c->rctl = renderer;

+	placecamera(c, Pt3(0,0,100,1), Pt3(0,0,0,1), Vec3(0,1,0));

+	reloadcamera(c);

+}

+

 static ulong

 newclient(void)

 {

@@ -156,25 +172,18 @@

 	int i;

 	for(i = 0; i < nclients; i++)

-		if(!clients[i].inuse)

+		if(clients[i].ref == 0)

 			return i;

 	if(nclients%16 == 0)

 		clients = erealloc9p(clients, (nclients+16)*sizeof(*clients));

-	c = &clients[nclients++];

+	c = getclient(nclients++);

+	memset(c, 0, sizeof *c);

 	c->slot = c-clients;

-	c->inuse = 1;

 	c->cam = emalloc9p(sizeof *c->cam);

-	c->cam->vp = mkviewport(Rect(0,0,320,200));

-	c->cam->fov = 40*DEG;

-	c->cam->clip.n = 0.01;

-	c->cam->clip.f = 1000;

-	c->cam->projtype = PERSPECTIVE;

-	c->cam->rctl = renderer;

+	resetcamera(c->cam);

 	c->cam->s = newscene(nil);

-	placecamera(c->cam, Pt3(0,0,100,1), Pt3(0,0,0,1), Vec3(0,1,0));

-	reloadcamera(c->cam);

 	return c->slot;

 }

@@ -189,7 +198,11 @@

 static void

 closeclient(Client *c)

 {

-	c->inuse = 0;

+	if(decref(c))

+		return;

+

+	clearscene(c->cam->s);

+	resetcamera(c->cam);

 }

 static void

@@ -365,6 +378,8 @@

 		r->fid->qid.path = path;

 		r->ofcall.qid.path = path;

 	}

+	if(QTYPE(path) >= Qn)

+		incref(getclient(SLOT(path)));

 	respond(r, nil);

 }

@@ -382,7 +397,7 @@

 	path = r->fid->qid.path;

 	off = r->ifcall.offset;

 	cnt = r->ifcall.count;

-	c = &clients[SLOT(path)];

+	c = getclient(SLOT(path));

 	switch(QTYPE(path)){

 	default:

@@ -393,7 +408,7 @@

 		respond(r, nil);

 		break;

 	case Qn:

-		dirread9p(r, clientgen, &clients[SLOT(path)]);

+		dirread9p(r, clientgen, getclient(SLOT(path)));

 		respond(r, nil);

 		break;

 	case Qctl:

@@ -449,7 +464,8 @@

 		n += snprint(buf+n, sizeof(buf)-n, "pos %V\n", c->cam->p);

 		n += snprint(buf+n, sizeof(buf)-n, "fov %g°\n", c->cam->fov/DEG);

 		n += snprint(buf+n, sizeof(buf)-n, "clip [%g %g]\n", c->cam->clip.n, c->cam->clip.f);

-		snprint(buf+n, sizeof(buf)-n, "proj %s\n", c->cam->projtype == PERSPECTIVE? "persp": "ortho");

+		n += snprint(buf+n, sizeof(buf)-n, "proj %s\n", c->cam->projtype == PERSPECTIVE? "persp": "ortho");

+		snprint(buf+n, sizeof(buf)-n, "ents %lud\n", c->cam->s->nents);

 		readstr(r, buf);

 		respond(r, nil);

 		break;

@@ -474,7 +490,7 @@

 	path = r->fid->qid.path;

 	cnt = r->ifcall.count;

-	c = &clients[SLOT(path)];

+	c = getclient(SLOT(path));

 	switch(QTYPE(path)){

 	default:

@@ -595,7 +611,7 @@

 	path = f->qid.path;

 	if(f->omode != -1 && QTYPE(path) >= Qn)

-		closeclient(&clients[SLOT(path)]);

+		closeclient(getclient(SLOT(path)));

 }

 void