Editing Direct Rendering Infrastructure (section)

{{short description|Framework}}
{{Infobox Software
| name                   = DRI
| title                  = DRI-1.0
| logo                   = 
| screenshot             = 
| caption                = 
| author                 = Precision Insight, Tungsten Graphics
| developer              = [[freedesktop.org]]
| released               = {{start date and age|1998|08}}<ref name="DRI history">{{cite web|last1=Owen|first1=Jens|title=The DRI project history|url=https://dri.freedesktop.org/wiki/DriHistory/|website=DRI project wiki|access-date=16 April 2016}}</ref>
| latest release version = 2.4.x
| latest release date    = February 2009
| programming language   = [[C (programming language)|C]]
| operating system       =
| platform               = [[POSIX]]
| size                   =
| genre                  = [[Software framework|Framework]] / [[Application programming interface|API]]
| license                = [[MIT license|MIT]] and other licenses<ref name="Mesa DRI License">[http://www.mesa3d.org/license.html Mesa DRI License] / Copyright Information - The Mesa 3D Graphics Library</ref>
| website                = {{URL|https://dri.freedesktop.org}}
}}
{{Infobox Software
| name                   = DRI
| title                  = DRI-2.0
| logo                   =
| screenshot             =
| caption                =
| author                 = [[Kristian Høgsberg]] et al.
| developer              = [[freedesktop.org]]
| released               = {{start date and age|2008|09|04}}<ref name="dri2proto spec 2.0" />
| latest release version = 2.8
| latest release date    = {{start date and age|2012|07|11}}<ref name="dri2proto 2.8" />
| latest preview version =
| latest preview date    =
| programming language   = [[C (programming language)|C]]
| operating system       = 
| platform               = [[POSIX]]
| size                   = 
| genre                  = [[Software framework|Framework]] / [[Application programming interface|API]]
| license                = [[MIT license|MIT]] and other licenses<ref name="Mesa DRI License"/>
| website                = {{URL|https://dri.freedesktop.org}}
}}
{{Infobox Software
| name                   = DRI
| title                  = DRI-3.0
| logo                   =
| screenshot             =
| caption                = 
| author                 = [[Keith Packard]] et al.
| developer              = [[freedesktop.org]]
| released               = {{start date and age|2013|11|01}}<ref name="dri3proto 1.0" />
| latest release version = 1.0
| latest release date    = {{start date and age|2013|11|01}}<ref name="dri3proto 1.0" />
| latest preview version =
| latest preview date    =
| programming language   = [[C (programming language)|C]]
| operating system       = 
| platform               = [[POSIX]]
| size                   = 
| genre                  = [[Software framework|Framework]] / [[Application programming interface|API]]
| license                = [[MIT license|MIT]] and other licenses<ref name="Mesa DRI License"/>
| website                = {{URL|https://dri.freedesktop.org}}
}}
[[File:Linux Graphics Stack 2013.svg|thumb|300px|There are two graphics hardware drivers: one resides inside of the X [[display server]]. There have been several designs of this driver. The current one splits it in two portions: DIX (Device-Independent X) and DDX (Device-Dependent X)]]
[[File:The Linux Graphics Stack and glamor.svg|thumb|300px|[[Glamor (software)|Glamor]] will simplify the [[X.Org Server|X server]], and {{mono|[[AMD Catalyst|libGL-fglrx-glx]]}} {{Update inline|date=May 2024|reason=libGL-fglrx-glx is no longer part of the current revision of this diagram, and the diagram has changed: previously there was no relationship between "Proprietary user mode graphics drivers" and "Mesa 3D", therefore facts seem to have changed}} could use the libDRM of the radeon open-source driver instead of the proprietary [[binary blob]].]]
[[File:Linux kernel and OpenGL video games.svg|thumb|300px|[[Rendering (computer graphics)|Rendering]] calculations are outsourced over [[OpenGL]] to the [[Graphics processing unit|GPU]] to be done in real-time. The '''DRI''' regulates access and book-keeping.]]

The '''Direct Rendering Infrastructure''' ('''DRI''') is the framework comprising the modern [[Linux]] graphics stack which allows unprivileged user-space programs to issue commands to [[graphics hardware]] without conflicting with other programs.<ref name="DRI wiki">{{cite web|title=Mesa 3D and Direct Rendering Infrastructure wiki|url=http://dri.freedesktop.org/wiki/|access-date=15 July 2014}}</ref> The main use of DRI is to provide hardware acceleration for the [[Mesa (computer graphics)|Mesa]] implementation of [[OpenGL]]. DRI has also been adapted to provide OpenGL acceleration on a [[Linux framebuffer|framebuffer console]] without a [[display server]] running.<ref>{{cite web|url=http://fbdri.sourceforge.net/|title=DRI for Framebuffer Consoles|access-date=January 4, 2019}}</ref>

DRI implementation is scattered through the [[X.Org Server|X Server]] and its associated client libraries, [[Mesa 3D]] and the [[Direct Rendering Manager]] kernel subsystem.<ref name="DRI wiki" /> All of its [[source code]] is [[open-source software]].