wind+libui: Ignore alpha bits in the window buffer

libui/include/ui/Canvas.h

@@ -69,5 +69,13 @@ namespace ui
          * @param stride The number of pixels to skip to go to the next line.
          */
         void fill(u32* pixels, int stride);
+
+        /**
+         * @brief Fill the canvas with pixels, without doing any extra processing.
+         *
+         * @param pixels The array of pixels (must be at least width*height).
+         * @param stride The number of pixels to skip to go to the next line.
+         */
+        void copy(u32* pixels, int stride);
     };
 };

libui/src/Canvas.cpp

@@ -7,6 +7,7 @@
  *
  */
 
+#include <luna/CString.h>
 #include <ui/Canvas.h>
 
 namespace ui
@@ -59,4 +60,16 @@ namespace ui
             p += stride * sizeof(Color);
         }
     }
+
+    void Canvas::copy(u32* pixels, int _stride)
+    {
+        u8* p = ptr;
+        for (int i = 0; i < height; i++)
+        {
+            u32* colorp = (u32*)p;
+            memcpy(colorp, pixels, width * sizeof(u32));
+            pixels += _stride;
+            p += stride * sizeof(Color);
+        }
+    }
 }

wind/Window.cpp

@@ -12,7 +12,7 @@ void Window::draw(ui::Canvas& screen)
     dirty = false;
 
     auto window = screen.subcanvas(surface);
-    window.fill(pixels, surface.width);
+    window.copy(pixels, surface.width);
 }
 
 void Window::focus()