Switch back to explicit bitmask

This makes me feel more confident about endianness and the format.

src/Presentation.cake

@@ -91,12 +91,12 @@
 
   (scope
    (var font-surface (* SDL_Surface)
-     (SDL_CreateRGBSurfaceWithFormatFrom (path font-atlas-out > pixel-buffer)
+     (SDL_CreateRGBSurfaceFrom (path font-atlas-out > pixel-buffer)
                                (path font-atlas-out > width)
                                (path font-atlas-out > height)
                                32 ;; bit depth of each pixel (RGBA)
                                (* (path font-atlas-out > width) 4) ;; pitch (width of a row in bytes)
-                               SDL_PIXELFORMAT_RGBA32))
+                               0xff000000 0x00ff0000 0x0000ff00 0x000000ff))
    (defer (SDL_FreeSurface font-surface)) ;; We don't need this after making the texture
    (set (deref font-texture-out) (SDL_CreateTextureFromSurface renderer font-surface))
    (unless (deref font-texture-out)