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Henrik RydgårdandClaude Opus 5
2cb0be1bc4
The two long-standing bug reports had a shared root: the service loop could end up in a state it never left. - Exit hang: UPNP_CMD_EXIT was queued alongside port requests and only acted on when it reached the front. A request that couldn't complete was never popped, so exit sat behind it forever and join() blocked indefinitely. Exit is a flag now, checked before anything else. - CPU spin: wait_for() with a predicate returns immediately when the predicate already holds, so a stuck queue head meant a tight loop. sceNetInet's bind() queues UPnP_Add regardless of the setting, so this hit whenever UPnP was off and a game used sockets. The loop always blocks now, and requests are dropped while UPnP is off. - Failed discovery was retried every 5s forever, each time a full 2s SSDP round plus an error toast. Now backs off 5s -> 300s and reports once. Other things found while in here: - Every failed Initialize() leaked a UPNPUrls + IGDdatas, so ~every 5 seconds for anyone with UPnP on and no router. The manual miniwget/parserootdesc/ GetUPNPUrls block was also redundant - UPNP_GetValidIGD does all of it and memsets over the result, leaking the URLs and costing an extra HTTP round trip per attempt. - UPNP_GetValidIGD's status was never checked, so we could go DONE with no usable IGD and hand a NULL controlURL to UPNP_GetConnectionTypeInfo. - miniupnpc's strncpy into the port-mapping-entry buffers doesn't guarantee a terminator; an 80-char description ran std::string off the end of desc[80]. - Add() marked another app's port "taken" only after our own add succeeded, so a failed add left their mapping deleted and never restored. - Clear() walked the router's entire table at exit, one HTTP round trip per index. It now deletes only what we know we mapped, and the exit cleanup has a time budget so an unreachable router can't stall shutdown. - The in-flight request stayed in the queue during the router call, so a same-port request arriving concurrently could erase it and be dropped unexecuted. - The queue is bounded, and last-write-wins per port collapses the churn from games that rebind in a loop. - The mapping description is built when the request is queued rather than read off g_paramSFO from the UPnP thread later. The thread now only exists while the setting is on - turning it off makes it remove its mappings and exit, turning it on starts one. That means __UPnPInit() has to run after the config is actually loaded; g_Config.Init() only builds a lookup table. QueueRequest() reconciles too, so a per-game config or a libretro core option enabling UPnP works without a notify at every call site. The settings checkbox is disabled in-game, since sceNet latches related settings at boot and a game that already mapped its ports wouldn't cope with them disappearing. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DCPmm7FoQUoqrbMdhfqhQ2
PPSSPP - a fast and portable PSP emulator
Created by Henrik Rydgård
Additional code by many contributors, see the Credits screen
Originally released under the GPL 2.0 (and later) in November 2012
Official website: https://www.ppsspp.org/
Discord: https://discord.gg/5NJB6dD
No BIOS file required to play, PPSSPP is an "HLE" emulator. Default settings balance good compatibility and speed.
To contribute, see Introduction to development. This page also includes our new AI policy.
Help with testing, investigating, or fixing bugs is always welcome. See the list of issues.
For the latest source code, see our GitHub page.
For documentation of all kinds (usage, reference, development), see the documentation on the main website
For build instructions and other development tutorials, see the wiki.
To download fresh development builds for Android, Windows and Mac, go to the /devbuilds page
For game compatibility, see community compatibility feedback.
What's new in 1.20.4
1.20.4 is an unusually big followup release, but given the new multiplayer developments, we need something to cover the longer gap to 1.21. During this cycle, I've mostly focused on UX improvements.
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Ad-hoc
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Texture upscaling
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Rendering fixes
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Misc UI improvements
- Instant type-to-search in game browser (#21559, #21565, #21630)
- Fix file picker problems on some Android devices (regression) (#21614, #21656)
- Fix crash in text edit fields on Mac/iOS (#21601)
- PSP DVD prototypes can now load directly (#21599, #21601)
- Cheat UI has been cleaned up and supports titles and comments natively (#21590)
- RetroAchievements subset display improvements (#21536)
- Basic deep link support on iOS (#21615)
- Soft keyboard has more symbols (#21625)
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Other
- Fix important (but mostly rare) crash bug affecting games that draw a lot (#21669)
- More plugin zip files can now auto-install (#21556)
- Pause on lost-focus on Linux (#21517)
- Frameskipping no longer breaks analog stick auto-rotation in GoW, however manual rotation still broken (#21508)
- Android: Restore "Landscape Auto" (#21482), the "Auto" screen rotation mode now overrides the user rotation lock (#21507)
- Contribution by lrzlin: Loongarch improvements (#21499, #21595)
- Basic support for extracting ISO from 7zip files (#21493)
- Fix a bug that prevented loading certain texture packs (#21491)
- Fix music looping in Death JR (#21490)
- Hide the save-load indicator in the corner by default (#21528)
- Fix crash in the remote debugger, by Nemoumbra (#21652)
- Fix screenshot cropping bug (#21665)
- mfplat.dll is no longer required on Windows unless you need camera/microphone (#21660)
What's new in 1.20.3
- Fix issue preventing ad hoc relay servers from working when RetroAchievements are enabled on Windows (#21420)
- Some ad hoc UI improvements (#21432, #21433)
- Fix crash/failure setting the background on iOS (#21409)
- Fix logging to file (#21412)
- Networking settings cleanup (#21418)
- Some fixes for assorted rare crashes (#21422)
- Fix issues when unpausing using a controller binding (#21424), DualSense Edge detection on Windows (#21426)
- Fix missing savestate undo button (#21425)
- MMPX texture upscaling algorithm has been restored, the new one has been improved (#21376) and renamed MMPX Advanced (#21421)
- Fix support for custom game config for homebrew apps (#21434)
- Improve insets handling on Android (#21437)
What's new in 1.20.2
- Improved server list for ad hoc multiplayer, dynamically updated and you can now add/remove entries (#21326, #21389, #21351)
- Fix broken multitouch on iOS with OpenGL (#21350)
- Ad hoc relay connection improvements (#21352)
- Fix a lot of minor UI issues (#21400, #21362)
- Fix background image selection on Android
and iOS(#21345, #21384, #21371) - Fix file permission issue on iOS (#21374)
- Add a "hold" version of axis swap toggle (#21357)
- Fix regression in Gripshift (#21377)
- Fix crash on audio device switch on Windows (#21341)
- Fix timing glitches in gamepad input on Windows (#21393)
- And other assorted fixes.
What's new in 1.20
-
User interface
- New feature: Proper support for Portrait Mode UI - you can now rotate your phone to vertical mode, and things will mostly work fine! (#21185, #21044...)
- New feature: Separate touch controls and display layout configs for landscape/portrait, new default touch control layout for portrait mode
- New feature: Upload files via HTTP from devices on the same network
- Savestate count limit can now be configured (#21112)
- UI icons are now vector-based, making them look sharper on high-DPI screens (#20824, #20870)
- Better handling of unsupported ISOs (#21169, #21166)
- Misc: Improved text rendering, chat box improvements (#20653), PIC0 is now visible on the game screen (#20686), (#20611), rotation fixes (#21145), input fixes (#21248), fixes for XBox FullScreen Experience, background stretch (#21211), handle savedata in main game browser (#21277), Discord Presence improvement (#21246)
- Show ICON1.PMF on the game info screen (#21303)
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Regression fixes
- In 7th Dragon, voice-related crashes are fixed (#20837)
- Soundtrack is working again in Tony Hawk's Project 8 (#20775)
- Fix crash in StormBasic homebrew apps (#20715)
- Built-in songs in Beats work again (#20662)
- Fix adhoc in Syphon Filter games (#20642)
- Fix strange cutscene speedups in Power Stone 2 (Power Stone Collection) (#2124)
- Work around game bug to help more custom songs play again in GTA LCS (#20692)
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Multiplayer
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Controller and touch screen input
- Native support for DualSense (#20580, #20620, #21191), DualShock and Switch Pro (#20647) controllers on Windows - including tilt controls for DualSense and Switch Pro
- Misc touch screen and controller mapping improvements (#21195, #21197, #21258, #21325)
- Add simple virtual keyboard for text input for platforms that don't have one (#21306)
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Graphics
- Fixed multiple graphical effects in Tales of Phantasia X
- Reworked the VSync setting to be more intuitive. It's now pretty much never a bad idea to turn it on.
- Fixes for various glitches in Tales of Phantasia X (#21173, #21141, #21205)
- Some more framebuffer readback workarounds (#20640, #20631, #20632)
- MMPX upscaling enhancements by crashGG (#20622, #20541)
- Huge rendering speedup in Brave Story (#21151)
- Fix rendering bug caused by CPU emulation bug in ATV Offroad Fury: Blazing Trails (#21238)
- Partially fix rendering problem in Mahjong Artifacts (#21244) and The Mystery of the Crystal Portal (#21236)
- Boost the GPU in Outrun 2006 to avoid unnecessary slowdowns (#21304)
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Other game fixes
- Fix savedata problem in Silent Hill: Shattered Memories (#21294)
-
Audio
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Platform support
- Windows
- Android
- The minimum Android version has been raised for technical reasons, KitKat is no longer supported (#19658)
- Support for Android devices with 16KB page size. This is a technical change, required by Google Play, that unfortunately forced us to drop compatibility with the very oldest devices (Android < 5). (#20788)
- Shortcut widgets can now be created even if the app isn't running (#20798)
- Removed support for classic Moga controllers, these were only a thing on early Android (#20762)
- iOS
- Add support for screen rotation
- Linux
- UWP
- Migrate code base to C++/WinRT (#21100)
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Debugger
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Other
What's new in 1.19.3
- Fixed crash on startup in Tony Hawk's Underground 2 (#20573)
- Fixed crash/hang when accessing the menu in FFII if readbacks were configured to copy-to-tex (#20573)
- Fix issue with detection of some types of saving, for the save reminders on exit (#20623)
- Fixed music and other audio in modded games (various football games, Crazy Taxi w/ original soundtrack, etc) (#20566, #20571)
- Fix exiting not functioning correctly on Windows in some circumstances (#20607)
- Minor UI and key binding fixes (#20604)
- Fix crash/blackscreen when switching from skip buffer effects to auto-frameskip rendering (#20605)
- Fix bug in Mac/Linux builds where the mouse got hidden and stuck if you enabled mouse input mapping (#20612)
- Fix black screen on save/load in the Football Manager Handheld games (#20616)
- Translation improvements
What's new in 1.19.2
- In-game save/load not properly detected for saving reminder (#20500)
- Install savedata from ZIP was partially broken (#20498)
- Fixed module loader bug affecting a few games (#20513)
- Fixed some hangs in the Windows debugger (#20510)
- Fix performance problem in texture replacement (#20520)
- Assorted fixes (#20518, #20514, #20502, #20515)
What's new in 1.19.1
- Fix selecting background image on Android (#20477)
- Fix RetroAchievements regression for multi-executable games (#20469)
- Possible fix for Mac audio device selection issue (#20482)
- Add workaround for Dragon's Lair not working with LLE scePsmf (#20468)
- Prevent trying to load obviously-corrupt CSO/CHD files (#20466)
- Fix regression for homebrew apps that request extra memory (#20457)
- Fix grid drawing in the various Robot Taisen games (#20456)
- Fix crash in UI when viewing a directory with multiple NPDRM ISOs (#20453)
What's new in 1.19
-
Audio
- Brand new sceAtrac implementation, fixing Flatout and multiple other long-standing issues! (#20098, #20136, #20138, #20162)
- More correctly implemented sceAtrac-through-sceSas functionality, fixing voice in Sol Trigger and multiple minis (#20156)
- Better support for using sceAudiocodec directly, fixing music in some homebrew apps (#20199, #20246, #20253, #20209)
- Volume control improvement (#19969, #19971)
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Rendering fixes and performance
- Important: This will be the last major version with D3D9 support. D3D11 will of course continue to be supported, along with Vulkan and OpenGL.
- Fix smoke effects in Jak'n'Daxter by re-using the fix from Ratchet & Clank (#20032)
- Software depth buffer rendering added to fix lens flares in multiple games efficiently (Midnight Club LA, Wipeout, Syphon Filter etc) (#19748, #19764, #20231, #19955, etc)
- Multiple rendering-related crash fixes (#20270, #20346, #20344)
- Texture replacement load speed corrected and can now be controlled (#20286), regression fix for zipped packs (#19860)
- Additional assorted compatibility and other fixes (#20376, #20070, #19685)
- Persona 1/2 readback fixes (#20067, #20068)
- Other correctness fixes (#20233, #20255, #19686)
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General emulation
- Allow disabling HLE on a per-module basis (if games ship the module so we can load it). Enabled for sceCcc (#20218), and more importantly scePsmf (#20208), fixing multiple issues.
- Additional module loading improvements (#20114)
- More precise sleep function on Windows (#20054)
- More replacement texture improvements, allow replacing game icons (#19975, #19978)
- Disable certain features like fast-forward when networking is on, to avoid de-syncs (#20311)
- Fixes mono Atrac3 as video soundtrack (#19800)
- Improvements to RISC-V support (#20352)
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Control and input
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New "Dear ImGui"-based PSP debugger: ImDebugger
- Allows very rapid development of debugging features as-needed, and also implements a pretty good Ge debugger for stepping through draws.
- Unlike the old Win32 debugger (but similar to the unmaintained web debugger), works on all platforms (though cumbersome on touchscreens)
- Major commits (though there are many more): (#20242, #20240, #20294)
-
Multiplayer
- Added Infrastructure multiplayer support, with automatic DNS configuration (#19865, #19869, #20221, #20220, #19875)
- Note: Only games that people have made "revival servers" for will work. See here.
- Implement more of sceNet (prerequisite for the former feature).
- Socket re-mapping implemented (#19827)
- Assorted bugfixes, thanks ANR2ME (#20247, #20245, #19843, #19849, #19836)
- Added Infrastructure multiplayer support, with automatic DNS configuration (#19865, #19869, #20221, #20220, #19875)
-
UI
- Loading spinner now actually spins properly, the app no longer appears to hang (#20341)
- Minor features: Asks for confirmation on exit in most scenarios (#19996, #20023), DPI scaling (#20013), can pause without menu (#19883)
- As usual a lot of tweaks, perf fixes, and fixes for hangs and crashes (#20343, #20332, #20305, #20303, #20299, #20163, #20152, #20143, #20079, #20137, #20374)
- Two new color themes (#20334, #20335), related themability fixes (#19984, #19995, #20308)
- Improvements and bug fixes in the savedata manager (#19771, #20170)
- Add "Move to trash" deletion functionality to multiple platforms (#20230, #20261)
- Add ability to take "raw" screenshots of gameplay (#20029)
- More files can be loaded directly from ZIP (#20243)
- Developer Settings are now tabbed for easier access (#20228)
- Switch to the full libpng API so we can disable gamma correction, like the real PSP (#20033)
- Support displaying the battery percentage on more platforms (#19973, #19967)
- Allow picking a background image on iOS (#20370)
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Platform compatibility
- Exclude older Macs from using Vulkan (too many black screens, hangs) (#20236)
- Use portable-file-dialogs to provide file-open dialogs on Linux (#20175)
- "Cache full ISO in RAM" is now correctly hidden where it doesn't work (#20165)
- Now rendering at proper resolution on newer Macs (#20011)
- Mouse input improved on Android, including separate button mapping (#19915)
- Use the correct font again on Mac/iOS (#19874)
- Multiple file access optimizations made to make the most out of the flawed foundation called Android Scoped Storage (#19668)
What's new in earlier versions
See history.md.