Changes in uspace/lib/draw/surface.c [ba733e83:beb5683] in mainline

File:

• uspace/lib/draw/surface.c (modified) (2 diffs)

uspace/lib/draw/surface.c

@@ -143 +143 @@
 }
 
-void surface_add_damaged_region(surface_t *surface, surface_coord_t x, surface_coord_t y,
-    surface_coord_t width, surface_coord_t height)
-{
-        surface->dirty_x_lo = surface->dirty_x_lo > x ? x : surface->dirty_x_lo;
-        surface->dirty_y_lo = surface->dirty_y_lo > y ? y : surface->dirty_y_lo;
-
-        surface_coord_t x_hi = x + width - 1;
-        surface_coord_t y_hi = y + height - 1;
-
-        surface->dirty_x_hi = surface->dirty_x_hi < x_hi ? x_hi : surface->dirty_x_hi;
-        surface->dirty_y_hi = surface->dirty_y_hi < y_hi ? y_hi : surface->dirty_y_hi;
-}
-
 void surface_reset_damaged_region(surface_t *surface)
 {
@@ -171 +158 @@
         surface->dirty_y_hi = surface->dirty_y_hi < y ? y : surface->dirty_y_hi;
 
-        pixelmap_put_pixel(&surface->pixmap, x, y, pixel);
+        if (x < surface->pixmap.width && y < surface->pixmap.height) {
+                pixelmap_put_pixel(&surface->pixmap, x, y, pixel);
+        }
 }
 
 pixel_t surface_get_pixel(surface_t *surface, surface_coord_t x, surface_coord_t y)
 {
-        return pixelmap_get_pixel(&surface->pixmap, x, y);
+        if (x < surface->pixmap.width && y < surface->pixmap.height) {
+                return pixelmap_get_pixel(&surface->pixmap, x, y);
+        } else {
+                return 0;
+        }
 }