Re: [PATCH 1/4] d3d9/tests: Add a windowed GetFrontBufferData test.

July 15, 2015

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Am 2015-07-15 um 10:47 schrieb Henri Verbeet:
...
Actually, it would probably be helpful to have an overview of how
this is all going to work in the end. E.g., how is
ddraw_surface7_Flip() going to work with the new setup?
Which part of this complicated function are you interested in? :-)
I've attached the current status of my work, but it's far from
complete. The immediate goal is to make swapchain_blit work with
wined3d_surface_blt (patch 13). Yeah, I realize I don't need most of
the previous 12 patches for that technically.

The current code handles flip in the ddraw and d3d9 version by
swapping the GL textures, invalidates all other locations (could move
around sysmem as well, but didn't bother yet) and unloads the resource
to remove the textures from the FBO cache. The same thing is currently
done in flip_surface() in surface.c Especially the FBO cache handling
is ugly.

Patches 15-17 give some idea how I plan ddraw overlays to work. I used
the d3d9 software cursor to experiment with this, but I don't think we
want to handle the software cursor in the way patch 15 handles it.
It's matching the native behavior, but GL vsync causes major
performance problems when updating the SW cursor and patch 17 doesn't
really fix this.

As you can see in patch 18-20 I hit a wall while trying to eliminate
the ddraw shadow frontbuffer. I think I first have to replace the
swapchain destroy and recreate in SetCooperativeLevel with a _Reset
call, and I'm sure there are many other issues. As such I haven't even
bothered yet with the flip target parameter for surface_flip().

Re: [PATCH 1/4] d3d9/tests: Add a windowed GetFrontBufferData test.

Stefan Dösinger