Re: [PATCH v3 0/6] MR5764: win32u: Create bitmaps for window surface pixels.

[Rémi Bernon (＠rbernon)]

v3: Zero BITMAPINFO structs, fix a typo in the offscreen surface biSizeImage, simplify XSHM extension usage using a dummy struct and dummy helpers when it isn't available.

Simplify the winex11 memory management by always allocating XImage data when not using XSHM, and then wrapping the XImage data in a D3DDDI bitmap in both cases.

The D3DDDI bitmap should support all the common formats for which we can write directly to the surface pixels. Other case involves a bitmap allocated on the win32u side and copies in winex11 surface flush.