Changes

While not strictly emulation ''per se'' (hence why [[Wine]] stands for "Wine Is Not an Emulator"), '''compatibility layers''' allow software written for one operating system to be run on a different OS, often by translating API and system calls made by an application to their equivalent calls in the host operating system. In theory, this should allow for near-native performance since no processor emulation takes place, but in practice certain some software such as games will tend to run a bit slower due to other bottlenecks that occur as a result of [[Emulation Accuracy|replicating the correct behavior]], such as in the case of OpenGL to accounting for graphics APIs like Direct3D translation as done through Winethat aren't supported on non-Microsoft platforms. Additionally, compatibility layers may also use emulation in order to run software built for a different architecture. ''This page is a WIP. Feel free to help out!''

|Unix and POSIX-compliantLinux, macOS

|[https://teknoparrot.com/ {{TeknoVer}}]

|[[Android emulators|Android]]

|{{✓}} ||{{✓✗}}<small>(WIP)</small>

==Graphics==There are also compatibility layers To understand why this is needed for older games, it's important to understand that during the 90s the graphics APIscard market for [[Intel CPUs|IBM PCs and compatibles]] was in its infancy, and Direct3D wasn't an automatic choice for developers. Some games were often designed for 3Dfx's Glide API so that it would run with their Voodoo card. With 3dfx going bankrupt however, support for Glide didn't stay around and the API was made open-source, sometimes refered to as wrappersbut NVIDIA and AMD never incorporated it into their drivers. They can be used A wrapper is now needed to run older Windows play these games on more modern versions with hardware acceleration, or on if we're lucky the game gets [[Game engine recreations/Source Ports|a port]] to other operating systemsAPIs instead.

{| class="wikitablesortable" style="text-align:center;"

!colspan="67"|PC90's APIs

|[http://www.zeus-software.com/downloads/nglide 2.010]|Glide|Vulkan, Direct3D 9|{{✓}} ||{{✓}}|-|[[Wine|Wine DirectX]]|Windows, Linux, macOS|[https://wiki.winehq.org/Download {{WineVer}}] <small>(Linux, macOS)</small><br /> [https://fdossena.com/?p=wined3d/index.frag 4.8] <small>Windows</small>|DirectX 1-7|OpenGL|{{✓}} ||{{✓}}|-|[http://dege.freeweb.hu/ dgVoodoo 2]|Windows|[http://dege.freeweb.hu/dgVoodoo2/dgVoodoo2.html 2.6]|Glide, DirectX 1-9|Direct3D 11

|[httphttps://degesourceforge.freeweb.hunet/projects/psvoodoo/ dgVoodoopsVoodoo]

|[httphttps://degesourceforge.freeweb.hunet/projects/psvoodoo/files/dgVoodoo2latest/dgVoodoo2download 0.html 2.55.413]|Glide|Direct3D 9|{{✓✗}} ||?|DirectX 1-! colspan="7, Direct3D 8.1, Glide"|2000's and later APIs

|[https://github.com/doitsujin/dxvk/releases 01.952]|Direct3D 10-11|Vulkan

|-|[[Wine|Wine Direct3D ]]|Windows, Linux, macOS|[https://wiki.winehq.org/Download {{WineVer}}] <small>(Linux, macOS)</small><br /> [https://fdossena.com/?p=wined3d/index.frag 4.8] <small>Windows</small>|Direct3D 1-11|OpenGL|{{✓}} ||{{✓}}|-|[https://github.com/Joshua-Ashton/d9vk D9VK]|Linux|[https://github.com/Joshua-Ashton/d9vk Git]|Direct3D 9|Vulkan|{{✓}} ||{{~}} <small>WIP</small>|-|[https://github.com/iXit/wine-nine-standalone Gallium Nine]|Linux|[https://github.com/iXit/wine-nine-standalone 0.4]|Direct3D 9|Native|{{✓}} ||{{~}} <small>WIP</small>|-|[https://source.winehq.org/git/vkd3d.git/ vkd3d]|Linux|[https://source.winehq.org/git/vkd3d.git/ 1.1]|Direct3D 12|Vulkan|{{✓}} ||{{✗}} <small>WIP</small>|-|[https://github.com/KhronosGroup/MoltenVK MoltenVK]|macOS, iOS|[https://github.com/KhronosGroup/MoltenVK/releases 1.0.33]|Vulkan|Metal|{{✓}} ||?|-|[https://github.com/Joshua-Ashton/dxup DXUP]|Windows, Linux|[https://github.com/Joshua-Ashton/dxup Git]|Direct3D 9-10 & |Direct3D 11|{{{✗}} ||{{✗}}

===Comparisons===* [httphttps://wwwsource.zeus-softwarewinehq.comorg/downloadsgit/nglide nGlidevkd3d.git/ vkd3d] nGlide is a 3Dfx Voodoo Glide an internal Wine wrapper. It allows you to play games designed for 3Dfx Glide API without the need for having 3Dfx Voodoo graphics card. All three API versions are supported, Glide 2.11, Glide 2.60 and Glide 3.10. nGlide emulates Glide environment with Direct3D and 12 to Vulkantranslation. Glide wrapper also supports high resolution modesSponsored by Valve. Has Currently a [http://www.zeus-software.com/downloads/nglide/compatibility compatibility list]work in progress.

* [httphttps://degegithub.freeweb.hucom/doitsujin/ dgVoodoo 2dxvk DXVK] is a wrapper Vulkan-based translation layer for old graphics API's for Windows Vista/7/8/Direct3D 10. The API's it currently can wrap are: Glide 2.& 11, Glide 2.45, Glide 3.1, Glide 3.1 Napalm, DirectX 1-7 (all versions of DirectDraw and Direct3D up to version 7) and Direct3D 8.1. This wrapper can use Direct3D 11 with different device types as wrapping output such as hardware or software renderingwhich allows running Windows 3D applications on Linux using [[Wine]].

* [https://github.com/doitsujinJoshua-Ashton/dxvk DXVKd9vk D9VK] is a Direct3D 9 to Vulkan-based translation layer for Direct3D 10based off DXVK's codebase. Will be merged into DXVK if it matures enough <ref name="d9vktodxvk">https://www.gamingonlinux.com/articles/dxvk-102-is-out-with-some-bug-fixes-d9vk-seems-to-be-progressing-nicely.13868/comment_id=151909</11, which allows running Winndows 3D applications on Linux using [[Wine]]ref>.