don't ncvisual_decode+stream #246

src/demo/eagle.c

@@ -60,6 +60,8 @@ zoom_map(struct notcurses* nc, const char* map){
     ncvisual_destroy(ncv);
     return NULL;
   }
+  // don't actually display--we only call this to free up the ncvisual internals
+  ncvisual_render(ncv, 0, 0, 0, 0);
   int vheight;
   int vwidth;
   ncplane_dim_yx(ncvisual_plane(ncv), &vheight, &vwidth);

src/demo/outro.c

@@ -36,10 +36,6 @@ fadethread(void* vnc){
   if(ncv == NULL){
     return NULL;
   }
-  if(ncvisual_decode(ncv, &averr) == NULL){
-    ncvisual_destroy(ncv);
-    return NULL;
-  }
   int rows, cols;
   notcurses_term_dim_yx(nc, &rows, &cols);
   struct ncplane* apiap = ncplane_new(nc, 1, cols, rows - 1, 0, NULL);

src/demo/sliding.c

@@ -178,7 +178,7 @@ int sliding_puzzle_demo(struct notcurses* nc){
   const int chunkcount = CHUNKS_VERT * CHUNKS_HORZ;
   struct ncplane** chunks = malloc(sizeof(*chunks) * chunkcount);
   if(chunks == NULL){
-    return -1;
+    goto done;
   }
   memset(chunks, 0, sizeof(*chunks) * chunkcount);
   // draw the 72 boxes in a nice color pattern, in order
@@ -197,7 +197,7 @@ int sliding_puzzle_demo(struct notcurses* nc){
   }
   // draw a box around the playing area
   if(draw_bounding_box(n, wastey, wastex, chunky, chunkx)){
-    return -1;
+    goto done;
   }
   if(demo_render(nc)){
     goto done;
@@ -240,6 +240,7 @@ int sliding_puzzle_demo(struct notcurses* nc){
   ret = 0;
 
 done:
+  ncvisual_destroy(ncv);
   for(z = 0 ; z < chunkcount ; ++z){
     ncplane_destroy(chunks[z]);
   }

src/demo/xray.c

@@ -103,9 +103,6 @@ int xray_demo(struct notcurses* nc){
   if(ncv == NULL){
     return -1;
   }
-  if(ncvisual_decode(ncv, &averr) == NULL){
-    return -1;
-  }
   struct ncplane* newpanel = NULL;
   ncvisual_stream(nc, ncv, &averr, perframecb, &newpanel);
   ncvisual_destroy(ncv);