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Texture Filtering v2 #5166

merged 10 commits into from Apr 3, 2020


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@BreadFish64 BreadFish64 commented Apr 2, 2020

Follow-up to #5017

I was having some trouble getting texture filtering and format reinterpretation working together. I decided I wasn't happy with the current texture filtering design, so I did a complete self-review and made some major changes. Hopefully, this should also fix some of the reported bugs with texture filtering that I haven't reproduced

For more info check the commit messages.

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BreadFish64 added 8 commits Apr 2, 2020
Some of its enums are needed outside of the rasterizer cache
and trying to use it caused circular dependencies.
This should make it less intrusive.
Now texture filtering doesn't have any mutable global state.
The texture filters now always upscale to the internal rendering resolution.
This simplifies the logic in UploadGLTexture and it simply takes the role of BlitTextures at the end of the function.
This also prevent extra blitting required when uploading to a framebuffer surface with a mismatched size.
The filtered guest mipmaps often looked terrible.
MacOS doesn't allow this
src/video_core/renderer_opengl/gl_rasterizer_cache.h Outdated Show resolved Hide resolved
static constexpr std::string_view NONE = "none";

explicit TextureFilterer(std::string_view filter_name, u16 scale_factor);
// returns true if the filter actually changed
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@lioncash lioncash Apr 2, 2020

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If a destructor is defaulted within the cpp file,

#include "video_core/renderer_opengl/texture_filters/texture_filter_base.h"

can be replaced with a forward declaration of TextureFilterBase.

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@BreadFish64 BreadFish64 Apr 3, 2020

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I tried this, but unfortunately the compiler errors with a message about deleting an incomplete type.

@BreadFish64 BreadFish64 merged commit f14e973 into citra-emu:master Apr 3, 2020
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BreadFish64 commented Apr 3, 2020

I'm merging this quickly in the interest of unblocking texture format reinterpretation.

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2 participants