This commit disables the Boxcat backend by default for new users of yuzu.
There's several reasons as to why this is done:
1. Boxcat currently only actually has an impact on 3 games and doesn't influence any core mechanics of them
2. It causes a plethora of issues when enabled such as games like Crash Team Racing, Diablo 3 and Tales of Vesperia not booting at all or hanging
3. It causes https://github.com/yuzu-emu/yuzu/issues/2957 to happen. This makes the configuration menu totally unusable for many Linux users of yuzu
I think those points show that currently the negative impact of Boxcat outweighs its benefits and should therefore be disabled by default.
For users who are eager to use the extra features provided by it, they can still just turn it on in the settings.
This PR aims to reduce the memory usage in the CPU page table by moving
GPU specific parameters into a child class. This saves 1Gb of Memory for
most games.
We sometimes have to slice attributes in different parts. This is needed
for example in instances where the game feedbacks 3 components but
writes 4 from the shader (something that is possible with
GL_NV_transform_feedback).
Some games bind incompatible texture types to certain types.
For example Astral Chain binds a 2D texture with 1 layer (non-array) to
a cubemap slot (that's how it's used in the shader). After testing this
in hardware, the expected "undefined behavior" is to report all pixels
as black.
We already have a path for reporting black textures in the texture
cache. When textures types are incompatible, this commit binds these
kind of textures. This is done on the API agnostic texture cache so no
extra code has to be inserted on OpenGL or Vulkan.
As a side effect, this fixes invalidations of ASTC textures on Astral
Chain. This happened because yuzu detected a cube texture and forced
6 faces, generating a texture larger than what the TIC reported.
Sometimes games will sample a 2D array TIC with a 2D access in the
shader. This causes bad interactions with the rest of the texture cache.
To emulate what the game wants to do, force a depth=1 on 2D textures
(not 2D arrays) and let the texture cache handle the rest.