Re: [PATCH 08/10] wined3d: make wined3d_device_update_surface operate with wined3d_texture and sub_resource_idx

[Stefan Dösinger]

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Am 2015-10-20 um 19:26 schrieb Henri Verbeet:
> The source surface for wined3d_device_update_surface() is supposed
> to be in WINED3D_POOL_SYSTEM_MEM. Mapping those shouldn't require a
> copy. (And while in ddraw everything is a bit weird, in d3d9 system
> memory surfaces are really supposed to be in system memory.)
- From wined3d_device_update_sub_resource's point of view there's no
guarantee that the memory data points to won't be gone after its
return. wined3d_device_update_surface knows that the source surface
will be there when the queued operation is executed.

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