ES-DE/CHANGELOG.md

# EmulationStation Desktop Edition (ES-DE) - Changelog

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## Version 1.2.0 (in development)

**Release date:** TBD

### Release overview

### Detailed list of changes

* Added alternative emulators support where additional emulators can be defined in es_systems.xml and be selected system-wide or per game via the user interface
* Added a menu option to change the application exit key combination
* Removed the "Choose" entry from the help prompts in the gamelist view
* Changed the "Toggle screensaver" help entry in the system view to simply "Screensaver"
* Added support for upscaling bitmap images using linear filtering
* Changed the marquee image upscale filtering from nearest neighbor to linear for the launch screen and the gamelist views
* Moved the Media Viewer and Screensaver settings higher in the UI Settings menu
* Moved the game media directory setting to the top of the Other Settings menu, following the new Alternative Emulators entry
* Bundled the bold font version of Fontfabric Akrobat
* Added the GLM (OpenGL Mathematics) library as a Git subtree
* Replaced all built-in matrix and vector data types and functions with GLM library equivalents
* Replaced some additional math functions and moved the remaining built-in functions to a math utility namespace
* Added a function to generate MD5 hashes
* Changed two clang-format rules related to braced lists and reformatted the codebase
* Changed the language standard from C++14 to C++17

### Bug fixes

* When navigating menus, the separator lines and menu components did not align properly and moved up and down slightly
* With the menu scale-up effect enabled and entering a submenu before the parent menu was completely scaled up, the parent would get stuck at a semi-scaled size
* When the last row of a menu had its text color changed, this color was completely desaturated when navigating to a button below the list

## Version 1.1.0

**Release date:** 2021-08-10

### Release overview

The 1.1 release brings many large changes including a fullscreen media viewer, a game launch screen, a miximage generator, a new video player and a new controller API featuring automatic controller configuration and controller profiles.

A much better mechanism to find emulators and emulator cores has been implemented as well, which among other things removes the need to manually modify the Path variable on Windows to find RetroArch. It also eliminates the requirement for a separate Flatpak-specific es_systems.xml file on Linux.

There are also several changes under the hood, such as the addition of the CImg image processing library, automatic code formatting of the entire codebase using clang-format, change of language standard from C++11 to C++14 and lots of general code refactoring.

Apart from this, numerous small improvements and bug fixes are part of the release, as detailed below.

### Detailed list of changes

* Added a miximage generator that can be run automatically from the scraper and which includes comprehensive options, configurable from the menu
* Added an offline generator GUI for the miximage generator which can be used for bulk miximage generation without going via the scraper
* Added a fullscreen game media viewer
* Added a game launch screen that displays the marquee image, the game name and the system name
* Added a new video player based on FFmpeg
* Added a 60 FPS frame rate upscaler option to the video player which results in slightly smoother playback for low frame rate videos (e.g. 24 and 30 FPS)
* Implemented a new mechanism for locating emulators and cores, with configurable find rules (this eliminates some hacks such as the separate Flatpak es_systems.cfg file)
* Added a Windows-specific find rule that searches the Registry for the App Paths keys, which eliminates the need to modify the Path manually to find RetroArch
* Removed the deprecated %COREPATH% setting and corresponding menu entry
* The "Run in background (while game is launched)" option can now be enabled on all operating systems instead of only on Windows
* Added a workaround for a game launch issue on Windows when using AMD and Intel GPUs
* Moved to the SDL GameController API which gives numerous improvements to the controller handling
* Default controller configuration is now automatically applied, input configuration should rarely if ever be required any longer except for deliberate button customization
* Added support for selecting the controller type (Xbox, Xbox 360, PS4, PS5 and SNES), which changes the help icons, help text and the input configuration tool icons and text
* Added an option to limit the input in ES-DE to only the first controller (this does not affect the emulators)
* Switched the order of the "Back" and "Start" buttons (or equivalents) in the input configurator to align with the other button entries which go from left to right
* Added separate controller deadzone values for the triggers and thumbsticks
* Removed the startup notification regarding default keyboard mappings being in use, instead default mappings are now considered the recommended input configuration
* The controller input configuration is not automatically started any longer if there is no es_input.cfg file or if there are no applicable configuration entries in the file
* Increased the max allowed size for images when scraping, which should now only downscale files which really need it
* Changed the resampling algorithm for image downscaling for the scraper from bilinear to Lanczos which results in noticeably sharper images
* Added a configurable option to automatically retry scraping up to eight times in case of ScreenScraper TLS errors
* Changed the button for jumping to a random system or game and added a setting for enabling or disabling the functionality altogether
* The help text for the "A" button now shows "Enter" instead of "Launch" in the grouped custom collections view
* Added navigation sounds for some actions where it was missing, such as when attempting to add folders, placeholders or systems to custom collections
* Changed the custom collection "Jump to" navigation sound to the select sound instead of the scroll sound
* A notification is now displayed in the grouped custom collections view if a filter is applied to the selected collection
* Changed the default screensaver type from "dim" to "video" and made the fallback screensaver "dim" instead of "black"
* Moved the video screensaver audio setting to the sound settings menu
* Added support for the Nintendo Switch game system (using the Yuzu emulator)
* Added an option to use plain ASCII characters for the favorite, folder and tickmark symbols, which makes some themes with very pixelated fonts look coherent
* Created a new main menu entry for input device settings
* Moved the input device configuration tool to the input device settings menu
* Adjusted the size and position of the various menus to accomodate one additional entry on the screen
* The quit menu is now disabled by default, instead showing the "Quit EmulationStation" entry unless configured otherwise
* Removed the "Display game media from ROM directories" setting as it doesn't make sense to support this legacy functionality any longer
* Added support for using the %ESPATH% and %ROMPATH% variables in the slideshow screensaver custom image directory setting
* Improved scaling relative to the screen aspect ratio for various GUI components which enhances the layout on 4:3 displays and ultrawide monitors
* Removed the menu fade-in effect as it looked terrible
* Enabled the menu scale-up effect for the OpenGL ES renderer
* Renamed es_systems.cfg, es_settings.cfg and es_input.cfg to es_systems.xml, es_settings.xml and es_input.xml
* Changed the es_systems.xml logic so it loads from the program resources directory by default (a customized file can be placed in ~/.emulationstation/custom_systems)
* Added a %HIDEWINDOW% variable which can be used in the es_systems.xml file on Windows, primarily intended for hiding console windows when launching scripts
* Added support for using the %ESPATH% variable in the media directory setting
* Removed the marquee image from rbsimple-DE as it's now baked into the miximages
* Set the gamelist video scanline rendering option to disabled by default
* Changed the setting description for the favorites game toggling button
* Simplified and improved the setup of portable installations on Windows
* Converted all navigation sound files to stereo as previously it was a mix of mono and stereo files (done for rbsimple-DE and the fallback sounds)
* The themes and scripts directories are now automatically created during startup
* Cleaned up some application startup messages
* The application version is now saved to es_settings.xml, which can be used in the future to notify the user after upgrades to a newer release
* Added a DebugSkipInputLogging option which is intended primarily for development and needs to be manually set in es_settings.xml
* Added the CImg library as a Git subtree and created some utility functions for it (used by the miximage generator and the game launch screen)
* Added a function to ImageComponent to crop fully transparent areas around an image
* Added and clarified startup log warnings for missing or invalid es_systems.xml platform tags
* Added a CMake option to control whether the VLC video player should be built, and set this to off by default
* Made it possible to build on the Raspberry Pi 4 (tested on Raspberry Pi OS)
* Removed the deprecated VideoOmxComponent
* Removed the pointless APPLE_SKIP_INSTALL_LIBS CMake option
* Added a clang-format style configuration file to use for automatic code formatting
* Formatted the entire codebase using clang-format
* Integrated clang-tidy with CMake and made it possible to enable it via a flag
* Added the NanoSVG library as a proper Git subtree
* Changed the language standard from C++11 to C++14

### Bug fixes

* Marking all games as favorites for a system or folder or removing all favorite markings would sometimes crash the application
* Scraping new game media using the single-game scraper followed by a re-scrape that was aborted could crash the application
* The scraper search could be refined or skipped after the result was accepted which sometimes crashed the application
* Attempting to load a non-existent font file defined by the theme crashed the application instead of using the bundled font as fallback
* Refining a search before it was completed and then cancelling the dialog would lead to an empty scraper screen
* Game media would sometimes not get displayed after single-game scraping
* Games that were filtered out were included in the random game selection for the grouped custom collections view
* After switching theme sets with only a single system available, diagonal slide transitions would sometimes play when moving to the system view
* Ongoing slide transition animations would continue to play after switching theme sets
* When using the Video view style, the static image would not get rendered during the first Slide transition when coming from the System view
* Long game names that were horizontally scrolling in the gamelist view would sometimes flicker when returning to the start position
* On Windows, images with Unicode characters in the game name that were resized when scraping would not get saved with valid filenames
* The glitches when configuring trigger buttons in GuiInputConfig have been fixed
* GuiDetectDevice wouldn't detect controller input that was of the "axis" type (i.e. analog inputs)
* GuiInputConfig didn't correctly inform which buttons could be skipped for some rows
* The scraper would sometimes consider very small images to be invalid
* Scraper searches for Nintendo Family Computer (Famicom) games were not accurate
* The Quick System Select help prompt was shown even when there was only a single game system present
* The "Back (cancel)" help prompt was missing for the single-game scraper
* The "Y" button help prompt wasn't displayed correctly when using the Grid view style
* Fractional game rating values would always get rounded up
* Encountering a corrupt image file would lead to a continuous loop of attempts to load the image while filling the log file with error messages
* Cropping in ImageComponent didn't work correctly
* The debug logging for the analog controller inputs had some inconsistent signs

## Version 1.0.1

**Release date:** 2021-05-01

### Release overview

v1.0 maintenance release.

### Detailed list of changes

* Added support for the new RetroArch v1.9.2 default core directory location on macOS

### Bug fixes

* Fixed high DPI display support on macOS

## Version 1.0.0

**Release date:** 2021-04-20

### Release overview

First release, a major update to the application compared to the RetroPie version on which it is based. This includes new gamelist sorting logic, new game media handling and an updated Windows port as well as a macOS port. The menu system has also been completely overhauled and the scraper has been expanded to support multiple media types as well as providing detailed scraping configuration options.

Full navigation sound support has been implemented, and the metadata editor has seen a lot of updates including color coding of all changes done by the user and by the scraper. Favorite games can now also be sorted on top of the gamelists and game collections.

OpenGL GLSL shader support has been added (not for the OpenGL ES renderer though) and there are multiple effects implemented such as scanlines for videos, blurred background when opening menus etc.

A new default theme rbsimple-DE (based on Recalbox Multi) is bundled with the application and is part of the installation package/installer. Theme sets created for the RetroPie EmulationStation fork will still work.

Many bugs have been fixed, and numerous features that were only partially implemented or broken have been updated to a fully working state. The application runs much faster as well due to lots of optimizations.

### Detailed list of changes

* Initial version, fork from RetroPie EmulationStation 2.10.0rp-dev (master)
* Added support for Windows, macOS, FreeBSD, NetBSD and OpenBSD
* New default theme rbsimple-DE bundled with the software (this theme is largely based on Recalbox Multi by the Recalbox community)
* Added extensive es_systems.cfg templates for Unix, macOS and Windows that are automatically installed on first application startup
* Added support for generating the ROM directory structure from within the application based on information in es_systems.cfg
* Added full navigation sound support, configurable per theme set with a fallback to the built-in sounds if there is no theme support
* Added multi-monitor support by giving the option to define on which display to run ES-DE
* Improved input device configuration and default keyboard mappings are now applied if the keyboard has not been configured by the user
* Reorganization and general overhaul of the menu system, hopefully making it more intuitive to navigate and easier to understand the menu entries
* New game media file logic using a media directory with files matching the ROM names instead of explicitly pointing to the media files from the gamelist.xml files
* GUI-configurable option to sort favorite games above non-favorite games
* GUI-configurable option to flag favorite games with star symbols
* GUI-configurable option to sort folders on top of the gamelists
* Added volume sliders for navigation sounds and game videos to the sound settings menu
* Added support for OpenGL GLSL shaders (OpenGL 2.1 renderer only, no support for OpenGL ES 1.0 renderer)
* Added multiple animations and shader effects, such as when opening menus, playing videos in the gamelists and via the screensaver etc.
* Updated the application to work properly on high resolution devices (such as 4K monitors)
* Seamless (almost) launch of games without showing the desktop when starting and returning from RetroArch and other emulators
* Updated scraper to support additional media files, detailed configuration of what to scrape, semi-automatic mode etc.
* Added user account support when scraping using ScreenScraper
* Added support for scraping game genres and game descriptions in multiple languages when using ScreenScraper
* Files or folders can now be flagged for exclusion when scraping with the multi-scraper, and for folders it can be set to apply recursively
* Overhaul of the game collection functionality including many bug fixes and optimizations
* Added ability to delete custom collections from the GUI menu
* Help system updated and expanded to the complete application (previously it was only partially implemented)
* Game systems are now sorted by full names which makes much more sense from a user perspective
* In the metadata editor, any values updated by the single-game scraper or by the user are now highlighted using different font colors
* Expanded the metadata for folders and made it possible to mark them as favorites
* Added metadata entry to mark games as broken/not working (e.g. useful for MAME games)
* Added metadata entry to indicate whether the file should be counted as a game (e.g. useful to exclude setup files and similar for DOS games)
* Added metadata entry to hide the metadata values from the gamelist views (useful for general folders, DOS game configuration utilities etc.)
* Added a "Clear" button to the metadata editor to delete the media files and gamelist.xml entry for a game or folder while still retaining the game file
* Added a system view counter for favorite games in addition to the total number of games
* Added a gamelist info text field displaying the game count, any applied filters as well as an icon if a folder has been entered (requires theme support)
* Properly implemented the option to show or hide hidden files and folders
* Properly implemented the option to show or hide games flagged as hidden in the metadata editor
* Added support for converting two-byte Unicode characters to uppercase and lowercase
* Added the ability to display pillarboxing and letterboxing for videos with non-standard aspect ratios
* Custom event scripts can now be enabled or disabled with a menu option
* Gamelist sorting is now working as expected and is persistent throughout the application session
* Expanded the gamelist filter functionality to include completed and broken games and added the ability to filter game names via a free text entry
* Added functionality to remember cursor positions inside folders and grouped custom collections
* Per-game launch command override, so that different cores or emulators can be used on a per-game basis (saved to gamelist.xml)
* The emulator core location can now be defined relative to the emulator binary using the %EMUPATH% variable in es_systems.cfg (used extensively on macOS and Windows)
* Core locations can be searched from a configurable list of directories if defined in the es_systems.cfg file using the %COREPATH% variable (mostly useful on Unix where there are no standardized core directories)
* Clear notifications and logging have been added for missing emulator binaries and cores when attempting to launch games
* Overhaul of the screensaver (the game info overlay now works correctly for instance)
* Added support for jumping to the start and end of gamelists and menus using the controller trigger buttons (or equivalent keyboard mappings)
* Many additional quality of life improvements and removal of GUI inconsistencies
* Replaced the main application font with Fontfabric Akrobat
* Replaced the on and off button icons with new graphics
* Replaced the checked checkmark icon with new graphics
* Changed the application icons and splash screen color theme from blue to red
* Improved the menu interface on 4:3 aspect ratio displays
* Made ScrollableContainer (used for the gamelist game descriptions) fade in as the text position is reset
* Made the ScrollableContainer scroll speed adaptive depending on the font size and width of the text container
* Moved all resources to a subdirectory structure and enabled the CMake install prefix variable to generate the resources search path
* Changed the theme set directory to the install prefix (e.g. /usr/share/emulationstation/themes) with themes in the home directory taking precedence
* No more attempts to open files directly under /etc, instead only the install prefix directory, the ES-DE executable directory and the home directory are used
* Added proper error handling for missing resource files and improved overall logging
* Refactoring, cleanup and documentation of the source code, removal of deprecated files etc.
* Speed improvements and optimizations, the application now starts faster and feels more responsive
* Added new component GuiComplexTextEditPopup to handle changes to configuration file entries and similar
* Added full UTF-16 (Unicode) support on Windows
* Removed the PowerSaver
* Game counting is now done during sorting instead of every time a system is selected. This should make the UI more responsive in case of large game libraries
* All required fonts bundled with the application, no dependencies on the OS to provide them any longer
* Made pugixml an external dependency instead of bundling it
* Replaced the custom math functions with standard C++ functions whenever possible
* Implemented proper random functions using Mersenne Twister pseudorandom number generators (it actually makes a practical difference)
* Modernized the audio code, for example using SDL_AudioStream instead of the older SDL_AudioCVT
* Overhaul of application settings, now the configuration file is only updated when there have been actual configuration changes
* Decreased CPU usage dramatically by only rendering the currently visible view (previously all views were always rendered)
* Updated the CMake/CPack install and package configuration files to work as expected (can now generate DEB, RPM, DMG and NSIS installation packages with correct dependencies)
* Added support for Clang/LLVM, made the application build with no errors or warnings using this compiler (Unix and macOS only)
* Added support for both MSVC and MinGW (GCC) on Windows
* License files are now included for all the libraries and resources that are bundled with the application
* Updated the MAME ROM index files to include ROMs up to MAME version 0.230 and created scripts to easily generate these index files in the future
* Greatly expanded the application documentation (which is hosted in the ES-DE repository on GitLab)

### Bug fixes

* On Unix, adding a hidden folder with a game in it crashed the application on startup
* If the user tried to enter a blank game name in the metadata editor, the application would crash upon saving
* Switching to the Grid view style with a placeholder shown in the gamelist crashed the application
* FileSystemUtil::getDirContent crashed when searching through directories recursively
* Large text sizes at higher resolutions (such as 4K) would crash the application as fixed-size texture buffers were used which weren't big enough to hold the larger font textures
* Fixed a massive memory leak related to SVG images
* Fixed an issue where SVG images would sometimes be cut off slightly on the right side (e.g. logos on the system view carousel)
* The audio volume control did not detect if there was a new default audio device or if the audio volume had been changed outside ES-DE
* The scraper didn't handle error conditions correctly
* The metadata editor insisted that changes had been made although nothing was updated
* Sorting by number of players did not work properly for games with ranges such as 1-2 or 1-8
* Restart and power-off menu entries not working on any of the tested operating systems
* Toggling the screensaver didn't work as expected
* The setting to enable or disable audio for the video screensaver only worked on Raspberry Pi
* The screensaver random function did not consider the previously selected game and could potentially show the same image or video over and over again
* The random system selection did not consider the currently selected system
* The random game selection did not consider the currently selected game
* The random game selection traversed folders, i.e. a game could be selected inside a subdirectory and vice versa
* The controller D-PAD could not be used for entering the UI mode change passkey
* Filters were not applied when leaving folders using the back button
* The cursor stack logic was not completely implemented for the Grid view style, making it largely broken
* Editing long text entries made the cursor jump outside the editing field
* Long words would sometimes render partly outside the designated text area instead of being abbreviated
* Fixed an annoying gamelist issue that caused the game images and data to be updated and rendered up to six times every time the list was scrolled
* Not all input events were logged when running with debug logging activated
* Unknown command line options were silently accepted instead of halting the application startup and logging an error
* Added a sanity check to the --resolution flag to keep the resolution within reason (and to avoid crashes when making a typo for this parameter)
* Deleting a game from the metadata editor did not delete the game media files or its entry in the gamelist.xml file
* Hidden files still showed up if they had a gamelist.xml entry
* Fixed multiple instances of misaligned GUI elements on high-resolution displays due to the use of fixed-pixel constants
* Fixed a rounding issue which caused single-pixel lines to sometimes be shown along the upper and left screen edges
* The VRAM statistics overlay was somewhat broken and incorrectly displayed numbers in megabytes instead of mebibytes
* Long game names would sometimes not scroll in the gamelist view
* Game media was not rendered when moving between gamelists using the slide transition style
* Wrapping around the first and last game systems generated strange camera movements when using the slide transition style
* Some bundled graphics (resource files) displayed excessive texture pop-in under some circumstances
* SystemView didn't properly loop the systems if only two systems were available
* When changing to the video view style from inside a gamelist, the view was not completely initialized
* Game images were sometimes scaled incorrectly
* The rating component would sometimes not render immediately if using SVG graphics
* Non-transparent favorite icons were not rendered correctly
* The SliderComponent knob position was set incorrectly if the minimum value was not zero
* The debug overlays didn't work for all image and text components
* Lots and lots of additional small bugs and inconsistencies fixed

## Known issues

**The issues below are relevant for ES-DE v1.1.0**

* There is an issue with launching games on Windows when using AMD and Intel GPUs. This causes the emulator to just output a blank screen. There is a workaround available for this which is enabled by default and that can be disabled via the menu option "AMD and Intel GPU game launch workaround". The drawback of this workaround is that a white instead of a black screen will be displayed when launching games. If using an Nvidia GPU, it should be safe to disable this option for a slightly better user experience. An alternative workaround is to enable the option "Run in background (while game is launched)".

* On macOS Big Sur (and possibly other OS versions) when connecting a DualShock 4 controller either via Bluetooth or using a USB cable, two separate controller devices are registered in parallel. This is a bug in either macOS or the DualShock driver and it makes it seem as if ES-DE is registering double button presses when actually two separate controller devices are generating identical input. A workaround if using Bluetooth mode is to plug in the USB cable just after connecting the controller, wait a second or two and then remove the cable again. This will remove the cabled device, leaving only the Bluetooth device active. Another workaround is to enable the setting "Only accept input from first controller" in the ES-DE input device settings. The reason why this bug may not be visible in some other games and applications is that ES-DE enables and auto-configures all connected controllers.

* On Windows when using high DPI displays, if not running ES-DE on the primary monitor and the display where it runs does not have the same scaling percentage as the primary monitor, then the ES-DE resolution will not be properly set. The application will still work and if running in fullscreen mode it may not even be noticeable. This issue is caused by a bug in SDL where the primary display scaling is always used for calculating the display bounds and as such it needs to be fixed in that library. If using the same scaling percentage across all monitors, or if not using high DPI monitors at all, then this issue will not occur.