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PPSSPP Switch Community Build v0.6.0

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@SirSamael SirSamael released this 31 Jul 13:10
v0.6.0
3ccf6a0

v0.6.0

Stable Nintendo Switch community release based on PPSSPP v1.20.4.

Video Playback and FFmpeg

  • Replaced the incompatible devkitPro system FFmpeg configuration with an
    isolated legacy FFmpeg build.
  • Pinned the PPSSPP FFmpeg submodule to commit
    82049cca2e4c1516ed00a77b502a21f91b7843f4.
  • Uses libavcodec 57.24.102 and the matching legacy FFmpeg libraries.
  • Fixed corrupted or green startup videos and cutscenes.
  • Fixed deterministic freezes encountered during video playback.
  • Added a reproducible FFmpeg 57 build script that installs into a local prefix
    without overwriting devkitPro system libraries.

Audio

  • Uses a 48,000 Hz default Nintendo Switch audio output rate.
  • Passes the actual SDL output frequency to the PPSSPP audio mixer.
  • Uses a 2048-frame SDL audio buffer.
  • Fixed missing game audio.
  • Fixed buzzing and crackling encountered during testing.

Build and Packaging

  • Added an automated Nintendo Switch build and release packaging script.
  • Added verification for the required FFmpeg submodule revision.
  • Added automatic application and validation of the three Switch submodule
    patches.
  • Added automatic NACP and NRO generation.
  • Added the tested 256×256 Homebrew Menu icon.
  • Added application metadata:
    • Title: PPSSPP Switch Community Build
    • Author: SirSamael
    • Version: 0.6.0
  • Added automatic creation of the SD-card ZIP archive and SHA-256 checksum.
  • Release packages use the required switch/ppsspp/ directory structure.
  • Updated all build instructions to use isolated FFmpeg instead of
    USE_SYSTEM_FFMPEG=ON.

Runtime Configuration

  • Regular JIT is the required CPU core for this release.
  • OpenGL ES is the supported graphics backend.
  • JIT using IR crashed every game in the current test set.
  • Vulkan is not supported by this community build.

Confirmed Test Results

The following games were confirmed to launch and run:

  • Danball Senki Boost
  • God of War: Ghost of Sparta
  • Grand Theft Auto: Liberty City Stories
  • Tekken 6

Street Fighter Alpha 3 MAX was also tested during the earlier investigation.

Performance

  • Overall performance remained comparable to the previously tested Nintendo
    Switch build.
  • Grand Theft Auto: Liberty City Stories showed frequent frame drops.
  • Tekken 6 showed occasional frame drops.
  • Compatibility and performance vary by game.

Known Issues

  • JIT using IR crashes the currently tested games; use regular JIT.
  • Vulkan is not supported.
  • NetLoader and nxlink launching are not recommended.
  • The compatibility test set remains limited and does not guarantee that every
    PSP game will work correctly.
  • Performance limitations and frame drops may occur in demanding games.

Development

Nintendo Switch adaptation, compilation, device testing and release maintenance
were performed by SirSamael.

ChatGPT was used for research, debugging guidance, build investigation,
documentation and release preparation.

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