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Decode EFB copies used as paletted textures.

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A number of games make an EFB copy in I4/I8 format, then use it as a
texture in C4/C8 format.  Detect when this happens, and decode the copy on
the GPU using the specified palette.

This has a few advantages: it allows using EFB2Tex for a few more games,
it, it preserves the resolution of scaled EFB copies, and it's probably a
bit faster.

D3D only at the moment, but porting to OpenGL should be straightforward..
This commit is contained in:
magumagu
2015-01-26 15:33:23 -08:00
parent fbbbad98e9
commit c0a4760f0e
10 changed files with 352 additions and 81 deletions
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7
Source/Core/VideoBackends/D3D/TextureCache.h
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@ -42,8 +42,15 @@ private:
u64 EncodeToRamFromTexture(u32 address, void* source_texture, u32 SourceW, u32 SourceH, bool bFromZBuffer, bool bIsIntensityFmt, u32 copyfmt, int bScaleByHalf, const EFBRectangle& source) {return 0;};
void ConvertTexture(TCacheEntryBase* entry, TCacheEntryBase* unconverted, void* palette, TlutFormat format) override;
void CompileShaders() override { }
void DeleteShaders() override { }
ID3D11Buffer* palette_buf;
ID3D11ShaderResourceView* palette_buf_srv;
ID3D11Buffer* palette_uniform;
ID3D11PixelShader* palette_pixel_shader[3];
};
}