Reinterpret framebuffer formats as needed. Outrun reflections partial fix #13636
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hrydgard
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aliaspider
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Nov 8, 2020
aliaspider
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Nov 8, 2020
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| // TODO: We could have an option to preserve any extra color precision. But gonna start without it. | ||
| // Requires full size integer math. |
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you could double the widths of the channels (10-12-10 instead of 5-6-5 etc.), although not sure if it is worth it ...
Edit: nvm, it wouldn't work out xD
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Yeah let's think more about this. I feel that it should be possible somehow but...
More work on reinterpret Buildsystem fixes
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Buildfix
…it format. Car reflections in Outrun are better (see #11358) but have some blue/yellow color garbage that will need a different fix.
…t can't support it yet
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| @@ -983,6 +989,8 @@ Pipeline *D3D11DrawContext::CreateGraphicsPipeline(const PipelineDesc &desc) { | |||
| std::vector<D3D11ShaderModule *> shaders; | |||
| D3D11ShaderModule *vshader = nullptr; | |||
| for (auto iter : desc.shaders) { | |||
| iter->AddRef(); | |||
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Hmm, seems like we'd need a Release() for this in the destructor of the pipeline?
-[Unknown]
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That is right! Thanks for the catch!
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PSP games sometimes render to a framebuffer in one format, then keeps rendering using another format. For example, like Outrun, you can render to the alpha channel of an RGBA4444 texture by switching it to RGB565, rendering to the B channel with a 11110 mask, and then switching back. We don't internally store textures in these low bit depths, we always use 8888 for a variety of reasons, so when switching formats, this shader converts the color to the corresponding old 16-bit format, and converts back to 8888 from that using the new 16-bit format. This can be a minor speed it but should indeed be minor.
First step towards fixing car reflections in Outrun: Coast to Coast. See #11358 .
This also deletes the recent mistakenly added early version of this, ColorReinterpret.cpp/h.
This makes use of a lot of the infrastructure I've added or refactored recently... the new ShaderWriter etc.
I'm a little afraid of performance regressions so I'll enable this for all games later, so far restricting it to Outrun.
NOTE! Doesn't fully fix it, there's still some blue/yellow color distortion in the reflections. That will be fixed separately later - the color bitmasking part has still not been implemented so the write to alpha also stomps the top bit of the blue channel. See my comment in #11358 about that. Here's how it looks now (from a good angle):
It's at least better than before: