Summary

This release primarily focuses on refactoring Mupen64 and bringing its code up to a much higher standard, thereby allowing faster development in the future.

Nevertheless, there are some interesting features and bugfixes, particularly Multi-Frame Advance (which also allows frame-advancing backwards), and reduced dispatcher overhead.

Features

• Multi-Frame Advance
• CrashManager Improve crash log
• CrashManager Add backward-cpp trace
• CrashManager Add minidump generation
• DialogService Enhanced dialog answers (#277)
• Lua Extended savestate api (#298)
• Lua Add recompile APIs
• Lua Use inspect.lua for print(), tostringexs()
• Plugin Extended function API
• VCR Save cheats alongside movie
• Improve general error reporting
• Add system DPI awareness
• Manual movie backup creation
• Show country name instead of decimal country code in rom country warning message
• End captures when movie playback stops or loops
• Allow setting mouse buttons as hotkey
• Improve default ffmpeg arguments
• Pure Interpreter x64 support
• Better float exception dialog
• Benchmark API
• Comparison API
• Speed down/up/reset menu items and hotkeys

Bugfixes

• Core Missing MGE functions in core_plugin.h
• Core Add legacy InitiateControllers declaration to core_plugin.h
• Config Backwards-compatibility issues with config (#289)
• Config Use separate config file (config-x64.ini) on x64 builds
• ConfigDialog Various issues with the new plugin configuration dialog
• ConfigDialog Incorrect dimensions for plugin config listbox
• VCR Show_controller_warning using incorrect header ref for warnings
• Savestates Fix unfinished dma being present when loading an old mupen st while st task queue contains save followed by load on pure interp
• Savestates Increment slot before saving slot
• Savestates Undo savestate not being cleared between roms
• VCR Limit length_samples to actual sample count provided by file
• Lua Incorrect return from d2d_overlay_wndproc
• Lua Crash when lua closes during file dialog (#302)
• Lua Os.exit() corrupting program state until exit
• LuaRenderer Use-after-free in overlay wndprocs
• FilePicker Double-free in show_folder_dialog
• FilePicker Handle filters correctly
• MovieDialog Potential stack overflow
• Plugin Fix new config API on non-RSP plugins
• FilePicker Save dialog being an open dialog
• FilePicker Missing default extension
• AVIEncoder Cwd breaking after AVIFileCreateStream call
• Statusbar Incorrect scale computation causing the last segment to be cut off
• Disable fast-forward when frame advancing
• Hotkeys not working on initial window focus
• Flash of black window content before rombrowser creation
• 1f delay when capturing d2d lua graphics
• Incorrect blit order in DCompPresenter::end_present
• SeekCompleted message not being sent
• Recent menus behaving incorrectly
• Lua environments not being destroyed when error happens in the main block
• Overlapping log contents
• Potential crash when capturing with lazy renderer initialization enabled
• Recording over longer avi with shorter one producing merged corrupted file
• save_options() failing during automated capture
• Deadlock in FFmpegEncoder::stop()
• AV when executing dynarec code with DEP enabled
• Stack overflow in find_savestate_for_movie
• Recording or playback being stopped when choosing to back out of movie playback following a warning
• Overwrite prompt blocking ffmpeg execution
• Incorrect string conversions
• Incorrect action mapping for ACTION_LOAD_LATEST_ROM
• Rare crash in D2D or GDI overlay WM_PAINT when stopping scripts
• Controller warning not showing when it should

Security

• CWE-119 in dma_si_read/dma_si_write
• CWE-119 in dma_read_flashram/dma_write_flashram/flashram_command after savestate load

Documentation

• Lua Update mupenapi.lua

Performance

• Dispatcher Faster dispatcher (#293)
• Config Avoid unnecessary copies in ini handling
• Lua Speed up invoke_callbacks_with_key_on_all_instances by 68%
• Lua Bump max text layout cache size to 512
• Lua Cache d2d.get_text_size results
• Lua Use integers instead of strings as callback registry keys
• EncodingManager Avoid DC and Bitmap recreation in readscreen_hybrid
• Add CS_OWNDC to main window style
• Use multimedia timers for invalidation
• Perform interval UI updates in new multimedia timer callback
• Avoid recalculating region on every dacrate changed call
• Use xxhash instead of adler32