WebSVN – HelenOS – Diff – /trunk/uspace/srv/fb/fb.c

+{
     *((uint8_t *) dst)
         = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
+}
-/** Draw a filled rectangle. */
+/** Draw a filled rectangle.
+ *
+ * @note Need real implementation that does not access VRAM twice.
+ */
 static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
     unsigned int y1, uint32_t color)
+{
     unsigned int x, y;
+    unsigned int copy_bytes;
+    uint8_t *sp, *dp;
     uint8_t cbuf[4];
+    if (y0 >= y1 || x0 >= x1) return;
     screen.rgb_conv(cbuf, color);
+    sp = &screen.fb_addr[FB_POS(x0, y0)];
+    dp = sp;
-    for (y = y0; y < y1; y++) {
+    /* Draw the first line. */
-        for (x = x0; x < x1; x++) {
+    for (x = x0; x < x1; x++) {
-            memcpy(&screen.fb_addr[FB_POS(x, y)], cbuf,
+        memcpy(dp, cbuf, screen.pixelbytes);
-                screen.pixelbytes);
+        dp += screen.pixelbytes;
-        }
+    }
+    dp = sp + screen.scanline;
+    copy_bytes = (x1 - x0) * screen.pixelbytes;
+    /* Draw the remaining lines by copying. */
+    for (y = y0 + 1; y < y1; y++) {
+        memcpy(dp, sp, copy_bytes);
+        dp += screen.scanline;
+    }
+}
 /** Redraw viewport.
+ *

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