libretro/emulators/arcadeflashweb.yml

emulator: ArcadeFlashWeb
type: standalone
core_classification: launcher
source: "https://github.com/aureyoboss/ArcadeFlashWeb"
upstream: "https://github.com/aureyoboss/ArcadeFlashWeb"
profiled_date: "2026-08-11"
source_commit: "5de66e0cd69b48721a094887a28d042f71ddad08"
core_version: "1.0.2"
display_name: "Adobe Flash (ArcadeFlashWeb)"
cores:
  - arcadeflashweb
systems:
  - flash

notes: |
  Qt 5.13 application that plays SWF files by hosting Adobe's Pepper Flash
  runtime inside a QtWebEngine view. Windows only. ES-DE runs
  ArcadeFlashWeb.exe -fullscreen -source:<rom>, RetroBat adds -nodatetime,
  -savedataflash: and -picturesfolder: and sets the working directory to the
  program folder. The repository carries the Qt and QML sources and the
  releases; arcadeflashweb.com no longer resolves and holds no archived
  capture. Every string quoted below was also read back from the shipped
  v1.0.2 executable, which matches the sources.
  ref: src/ArcadeFlashWeb.pro:1-5, src/main.qml:34-35

  The runtime is registered from the command line. main sets
  QTWEBENGINE_CHROMIUM_FLAGS to "--enable-pepper-testing
  --ppapi-flash-path=./pepflashplayer.dll" before QtWebEngine::initialize, so
  Chromium takes the plugin from that path. It is the one file resolved
  against the process working directory; everything else below hangs off
  applicationDirPath. No --ppapi-flash-version accompanies it, and nothing
  reads the manifest.json sitting beside the library: QtWebEngine builds the
  plugin entry from the two switches alone and the library never names that
  file. The manifest is still what identifies the build, Pepper Flash
  32.0.0.371 for win/ia32.
  ref: src/main.cpp:37-44, ArcadeFlashWeb-release manifest.json:2-7,
       qtwebengine 5.13 src/core/content_client_qt.cpp AddPepperFlashFromCommandLine

  A local movie is not handed to the view. The url becomes
  file:///<appdir>/flash/flash.html?jeu=<rom>=<width>=<height>, and that page
  splits the query on the equals signs, fits the movie to the window and calls
  swfobject.embedSWF with scale exactfit and wmode direct. The version it asks
  for is 32.0.0, so SWFObject creates the object only when the registered
  plugin reports at least that. A -source: containing "http" loads in the view
  unchanged and uses none of this.
  ref: src/main.qml:317-347, src/Navigateur.qml:144-155,
       ArcadeFlashWeb-release flash/flash.html:38-104

  Natural dimensions come from swfdump. When -swfwidth: and -swfheight: are
  not both given, which is the case for both ES-DE and RetroBat, the program
  runs cmd /C <appdir>/swfdump.exe -X -Y <rom> redirected to swf.txt in the
  data directory and reads the second and fourth whitespace fields back.
  ref: src/main.qml:109-128, src/main.qml:321-335, src/Navigateur.qml:147-148

  -profilantimicro: starts AntiMicro hidden with a profile from
  antimicro/profiles before the movie loads. Adding -controleurantimicro:
  replaces that argument with --profile-controller, and the profile file is
  then not passed at all.
  ref: src/main.qml:305-314

  Written rather than expected: swf.txt, the QML LocalStorage database holding
  the last browser path with the bezel, screen mode and clock flags, the
  QtWebEngine cache and persistent storage under -savedataflash:, and the JPEG
  screenshots. The interface icons, the bezel, the CRT and scanline overlays
  and the wallpaper are compiled in through qml.qrc, so of the images only the
  copy under flash/images is read from disk, and it is byte for byte the
  compiled one. Two files ship unread: flash/swfobject/expressInstall.swf,
  which flash.html disables by passing false for the express install url, and
  flash/swfobject/test.swf, which nothing names.
  ref: src/qml.qrc:1-33, src/Sauvegarde.js:1-30, src/main.qml:132-159,
       ArcadeFlashWeb-release flash/flash.html:102

  The remainder of the release is the Qt 5.13.2 deployment of the program
  itself. VCRUNTIME140.dll and the UCRT stubs sit in the executable's import
  directory, so the Visual C++ 2017 x86 redistributable has to be installed,
  and the release carries its installer.
  ref: README.md:59, ArcadeFlashWeb v1.0.2 ArcadeFlashWeb.exe import directory

files:
  - name: pepflashplayer.dll
    required: true
    bundled: true
    description: "Adobe Pepper Flash Player runtime"
    note: >-
      Handed to Chromium as --ppapi-flash-path and resolved against the process
      working directory. Without it no plugin is registered, SWFObject finds no
      player and the movie is never embedded. The page asks for a reported
      version of at least 32.0.0; the build that ships is the 32-bit 32.0.0.371.
    source_ref: "src/main.cpp:40, ArcadeFlashWeb-release flash/flash.html:102"

  - name: flash.html
    path: flash/flash.html
    required: true
    bundled: true
    description: "Page that embeds the movie"
    note: >-
      Every local SWF goes through it, carrying the path and the two dimensions
      in the query string. Absent, the view is pointed at a file that does not
      exist and nothing plays.
    source_ref: "src/main.qml:327,334, src/Navigateur.qml:150"

  - name: swfobject.js
    path: flash/swfobject/swfobject.js
    required: true
    bundled: true
    description: "SWFObject 2.2 embed library"
    note: >-
      The only definition of swfobject, included by flash.html before the script
      that calls embedSWF. It reads the player version from the Shockwave Flash
      plugin description, refines it from a probe object's $version, and refuses
      to embed below the version the page asks for.
    source_ref: "ArcadeFlashWeb-release flash/flash.html:38, ArcadeFlashWeb-release flash/swfobject/swfobject.js:1-4"

  - name: background.jpg
    path: flash/images/background.jpg
    required: false
    bundled: true
    description: "Backdrop of the player page"
    note: >-
      Drawn behind the movie by the page's bg div. The same image is compiled
      into the binary for the QML side, so only this copy is read from disk.
    source_ref: "ArcadeFlashWeb-release flash/flash.html:110, src/qml.qrc:23"

  - name: swfdump.exe
    required: false
    bundled: true
    description: "SWFTools swfdump, reads the movie's natural size"
    note: >-
      Run through cmd /C with -X -Y and the output redirected to swf.txt, then
      parsed as the second and fourth whitespace fields. Skipped when both
      -swfwidth: and -swfheight: are given. Absent, the redirection still
      creates an empty file, both fields parse to NaN and the page sizes the
      object from that.
    source_ref: "src/main.qml:324-325, src/Navigateur.qml:147-148"

  - name: antimicro.exe
    path: antimicro/antimicro.exe
    required: false
    bundled: true
    description: "AntiMicro gamepad to keyboard mapper"
    note: >-
      Started hidden before the movie loads, only when -profilantimicro: is
      given. The copy that ships is a 2016 build carrying its own Qt 5 runtime
      in the same folder.
    source_ref: "src/main.qml:309,311"

  - name: arcadeflashweb.gamecontroller.amgp
    path: antimicro/profiles/arcadeflashweb.gamecontroller.amgp
    required: false
    bundled: true
    description: "AntiMicro mapping profile"
    note: >-
      Passed to AntiMicro as --profile under the name -profilantimicro: gives;
      the name that ships is the one the built-in help quotes. With
      -controleurantimicro: also set the call carries --profile-controller
      instead and no profile file is read.
    source_ref: "src/main.qml:309-312"

  - name: pepper.vch
    required: false
    bundled: true
    description: "Adobe Flash Access blob shipped with the runtime"
    note: >-
      Named in the Flash library's own string table next to PepperFlashPlayer.
      PKCS#7 over 446144 opaque bytes, signed through the Adobe Flash Access
      chain under subject CN AdobeIV-202002031156. It carries DRM material and
      no plain SWF needs it.
    source_ref: "ArcadeFlashWeb v1.0.2 pepflashplayer.dll string table"