Mark the whole canvas as dirty when a dirty rectangle aware driver is

attached to it.

caca/driver/ncurses.c

@@ -300,6 +300,7 @@ static int ncurses_init_graphics(caca_display_t *dp)
             }
         }
 
+    caca_add_dirty_rect(dp->cv, 0, 0, dp->cv->width, dp->cv->height);
     dp->resize.allow = 1;
     caca_set_canvas_size(dp->cv, COLS, LINES);
     dp->resize.allow = 0;

caca/driver/slang.c

@@ -175,6 +175,7 @@ static int slang_init_graphics(caca_display_t *dp)
     SLtt_utf8_enable(1);
 #endif
 
+    caca_add_dirty_rect(dp->cv, 0, 0, dp->cv->width, dp->cv->height);
     dp->resize.allow = 1;
     caca_set_canvas_size(dp->cv, SLtt_Screen_Cols, SLtt_Screen_Rows);
     dp->resize.allow = 0;

caca/driver/vga.c

@@ -72,9 +72,9 @@ static int vga_init_graphics(caca_display_t *dp)
     outb(0x0a, 0x3d4);
     outb(tmp, 0x3d5);
 
-    /* We don't have much choice */
+    caca_add_dirty_rect(dp->cv, 0, 0, dp->cv->width, dp->cv->height);
     dp->resize.allow = 1;
-    caca_set_canvas_size(dp->cv, 80, 25);
+    caca_set_canvas_size(dp->cv, 80, 25); /* We don't have much choice */
     dp->resize.allow = 0;
 
     return 0;

caca/driver/x11.c

@@ -87,6 +87,7 @@ static int x11_init_graphics(caca_display_t *dp)
         sscanf(geometry, "%ux%u", &width, &height);
 #endif
 
+    caca_add_dirty_rect(dp->cv, 0, 0, dp->cv->width, dp->cv->height);
     dp->resize.allow = 1;
     caca_set_canvas_size(dp->cv, width ? width : 80, height ? height : 32);
     width = caca_get_canvas_width(dp->cv);