libretro / libretro/ps2

Seems like some patches are not working

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Dominant language
C++
Stars
85
Forks
26
Avg merge
6h 43m
Merged PRs (30d)
6

Description

Hey Im trying to play Echo Night Beyond (Serial: SLUS-20928)(CRC: 2DE16D21).
The problem is this game have very much noticeable offset in rendering that makes the image a lot blurry (and like "duplicated"), it comes from interlacing, that even in PCSX2 dont get turned off no matter the GS setting.

I managed to get the best patch in PCSX2 that corrects this,
//No Interlacing + 60FPS
patch=1,EE,0013FFDC,word,10000014 //10200014
However it wont work on LRPS2 when using ParaLLEl (it works in vulkan, most of the time).
The pnach file has the correct CRC number with the patch lines, but it wont work, so interlacing and duplicate image persists.

Also in the patches git, there is this,
Image
Does it have something too do with that?
Edit: sorry for excessive brightness i have hdr enabled, but still, first image the letters cant be read, in the 2nd they can (does not happen only with text, its all the in game rendering)
This is how it currently looks
Image
An this how it should kinda look (does not with ParaLLEl)
Image

Id like a workaround, i prefer playing with the looks that ParaLLEl gives.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing Echo Night Beyond (SLUS-20928, CRC 2DE16D21) with ParaLLEl and compare it with Vulkan. Inspect how the supplied pnach patch and the No Interlacing patch line are handled, then determine whether the rendering path applies them. Done means the game renders without the reported interlacing and duplicated image under ParaLLEl.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-graphics, game-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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