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On OpenGL and Direct3D 11, and on Vulkan and Direct3D 12 in single core, the GPU loop runs inside retro_run, and a run after one that ran out of time catches up on two fields: both presented, and the frontend's video_refresh was called twice in one run. A picture drawn or handed over on the hardware is now reported once, at the end of the run, the last one drawn, as the threaded outputs already did. Direct3D 11 version 1 is the exception, as the frontend reads its texture inside the callback: that output reports at once, the first picture of a run, and drops a second. So do pictures in memory (software rendering). What the output hands over in place, the XFB texture itself, may have been read in a layout of the core's own since it was presented, as a copy's source say: before the frontend is told, it goes back to the one the frontend reads it in, as it already did before a repeat (FrameOutput::KeepReadable, which Repeat was).
Dolphin - A GameCube and Wii Emulator
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Dolphin is an emulator for running GameCube and Wii games on Windows, Linux, macOS, and recent Android devices. It's licensed under the terms of the GNU General Public License, version 2 or later (GPLv2+).
Please read the FAQ before using Dolphin.
System Requirements
Desktop
- OS
- Windows (10 1903 or higher).
- Linux.
- macOS (11.0 Big Sur or higher).
- Unix-like systems other than Linux are not officially supported but might work.
- Processor
- A CPU with SSE2 support.
- A modern CPU (3 GHz and Dual Core, not older than 2008) is highly recommended.
- Graphics
- A reasonably modern graphics card (Direct3D 11.1 / OpenGL 3.3).
- A graphics card that supports Direct3D 11.1 / OpenGL 4.4 is recommended.
Android
- OS
- Android (7.0 Nougat or higher).
- Processor
- A processor with support for 64-bit applications (either ARMv8 or x86-64).
- Graphics
- A graphics processor that supports OpenGL ES 3.0 or higher. Performance varies heavily with driver quality.
- A graphics processor that supports standard desktop OpenGL features is recommended for best performance.
Dolphin can only be installed on devices that satisfy the above requirements. Attempting to install on an unsupported device will fail and display an error message.
Building
This tree builds the parallel_gamecubewii libretro core with the static Makefile. Pull all submodules first:
git submodule update --init --recursive
Then run make from the top of the tree. Linux, macOS and Windows (MSYS2, any
environment) are detected; other targets take platform=:
| Target | Command | Output |
|---|---|---|
| Linux, webOS | make |
parallel_gamecubewii_libretro.so |
| Windows (MinGW-w64) | make |
parallel_gamecubewii_libretro.dll |
| macOS | make |
parallel_gamecubewii_libretro.dylib |
| iOS | make platform=ios-arm64 |
parallel_gamecubewii_libretro_ios.dylib |
| tvOS | make platform=tvos-arm64 |
parallel_gamecubewii_libretro_tvos.dylib |
| Android | make platform=android-arm64 (or android-x86_64), NDK from ANDROID_NDK_ROOT |
parallel_gamecubewii_libretro_android.so |
Cross builds pass the compilers, e.g. make CC=aarch64-linux-gnu-gcc CXX=aarch64-linux-gnu-g++.
DEBUG=1, LTO=-flto and SANITIZER=address,undefined are available everywhere.
Uninstalling
On Windows, simply remove the extracted directory, unless it was installed with the NSIS installer, in which case you can uninstall Dolphin like any other Windows application.
Linux users can run cat install_manifest.txt | xargs -d '\n' rm as root from the build directory
to uninstall Dolphin from their system.
macOS users can simply delete Dolphin.app to uninstall it.
Additionally, you'll want to remove the global user directory if you don't plan on reinstalling Dolphin.
Command Line Usage
Usage: Dolphin.exe [options]... [FILE]...
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-u USER, --user=USER User folder path
-m MOVIE, --movie=MOVIE
Play a movie file
-e <file>, --exec=<file>
Load the specified file
-n <16-character ASCII title ID>, --nand_title=<16-character ASCII title ID>
Launch a NAND title
-C <System>.<Section>.<Key>=<Value>, --config=<System>.<Section>.<Key>=<Value>
Set a configuration option
-s <file>, --save_state=<file>
Load the initial save state
-d, --debugger Show the debugger pane and additional View menu options
-l, --logger Open the logger
-b, --batch Run Dolphin without the user interface (Requires
--exec or --nand-title)
-c, --confirm Set Confirm on Stop
-v VIDEO_BACKEND, --video_backend=VIDEO_BACKEND
Specify a video backend
-a AUDIO_EMULATION, --audio_emulation=AUDIO_EMULATION
Choose audio emulation from [HLE|LLE]
Available DSP emulation engines are HLE (High Level Emulation) and LLE (Low Level Emulation). HLE is faster but less accurate whereas LLE is slower but close to perfect. Note that LLE has two submodes (Interpreter and Recompiler) but they cannot be selected from the command line.
Available video backends are "D3D" and "D3D12" (they are only available on Windows), "OGL", and "Vulkan". There's also "Null", which will not render anything, and "Software Renderer", which uses the CPU for rendering and is intended for debugging purposes only.