rsx: Fix a few texture data leaks

[kd-11]

• Do not sample from incomplete textures! Raises minimum texel completeness to 99% if only one texture is found inside a range. This should exclude textures smaller than the required and avoid introducing black regions to partial blit engine textures.
• If a trivial blit operation is happening, but a live shader_read resource exists in the same range, this signifies a flush is very likely to occur. Use CPU fallback instead for performance reasons.
• Fix blit engine resources having needless memory barriers in vulkan.
• Fix some leaking texels when flushing incomplete textures using the revised vulkan DMA system. Some extensions need to be added to properly handle strided data operations.

Fixes #6822

[incognitoh]

(BLUS30049) huge regression in speed compared to latest master. also the crowd/fans are glitched now. this game requires cpu blit to get past opening menu. this is using just standard 1280 x 720 resolution and cpu blit enabled

master:

pr:

master:

PR:

win10
gpu- gtx1070

[kd-11]

The crowds are fine, the bug is that rpcs3 is behaving as if CPU blit is enabled. The crowds look like trash because you don't have WCB enabled. CPU blit is also why performance is so bad; I'm investigating why this is happening.

[kd-11]

Ok, this game is just poorly written, rpcs3 is actually correct in this case. Game is sampling a partial texture with overdeclared height which means we need to load from CPU to get the missing bits. I'll try and make the code more lenient but this just opens us up to more bugs in other games which do not like this kind of hack.

[kd-11]

Added a temporary workaround for broken games which hides this issue for now.

[jokoputera]

I believe RayStorm HD having the same problem. But im not gonna create a new thread because that game is very much playable (>60fps), even though you need to turn on the CPU blitz. 🙏🏻