GS/OpenGL: Use shader+draw for CopyRectConv

[stenzek]

Description of Changes

Apparently using glCopyTextureSubImage2D was causing memory leaks in Evolution Snowboarding on NVIDIA and Intel drivers. For some reason it's fine for me on AMD...

Fixes #5017

Rationale behind Changes

Leaks bad

Suggested Testing Steps

Make sure games which need colclip clamping off aren't affected (e.g. FFX-2 opening FMV).

[refractionpcsx2]

Just to note, Evolution Snowboarding still runs like ass because it does Colclip and has a LOT of draw calls which is slow on OpenGL, so probably better to use D3D for this game

[seta-san]

the speed jump is amazing but there is now a weird shadow box that is around your playable character.

[refractionpcsx2]

the speed jump is amazing but there is now a weird shadow box that is around your playable character.

Have you got a picture? I don't see it

[seta-san]

[seta-san]

doesn't show in master. also super basic settings when running PR and Master

r

[ghost]

This PR doesn't fix Spiderman 3 memleak on my end but probably unrelated then. Aside that, I didn't notice something wrong in particular.

[lightningterror]

Would be nice to add these for more fps comparison graphs:

Big Mutha Truckers:
Master 53 fps
PR 77 fps

Sly 2:
Master 82 fps
PR 95 fps

Echo Night:
Master 20 fps
PR 37 fps

[JordanTheToaster]

Tested with a fair selection of games and saw no issues haven't noticed any performance differences either.

[lightningterror]

Tested with a fair selection of games and saw no issues haven't noticed any performance differences either.

Need to find games that use the effect to trigger.