Thx for offering bounty, but unfortunately at the moment I have no idea about how to fix it. I guess it cannot be fixed outside of dgVoodoo either because it's not a "bug". Probably the thing is that GPU's still supported row-major rendertargets in the DX8/9 days so they could easily create one, …

Yes, I'll compile a faking-lock version and see how it works. Of course there is a caching mechanism under the hood for locking surfaces (it's multi-level and quite complicated, especially with 'fast vidmem' mode), so subsequent Lock calls won't cause memory readback all the time. But this is only …

Yes, I'll compile a faking-lock version and see how it works. Of course there is a caching mechanism under the hood for locking surfaces (it's multi-level and quite complicated, especially with 'fast vidmem' mode), so subsequent Lock calls won't cause memory readback all the time. But this is only …

I looked into it and got to the following. To give the application a pointer directly to the surface, it has to have row-major memory layout, it's essential because that's the only layout an application can understand. And, - The GPU must support row-major for rendertarget textures, so it's …

Thanks again, @Dege. I have my fingers crossed that something may be possible! Side note: even if it's not possible to restore the LockRect function to "normal", perhaps there is a way to discard these calls or always return a fake value? Obviously this function is needed for something or it …

Thanks again, @Dege. I have my fingers crossed that something may be possible! Side note: even if it's not possible to restore the LockRect function to "normal", perhaps there is a way to discard these calls or always return a fake value? Obviously this function is needed for something or it …

I gave this a go with the UnrealEd shipped with Postal 2 and indeed, the problems you described exist. I fixed the viewport problem. The slowdown problem is because the editor locks the viewport GPU backbuffers for CPU access a lot of times. I don't know, why it does that but it does. The problem …