This is Mesa's legacy wl_drm protocol. It will eventually get replaced with linux-dmabuf, however right now it's the only way to get the DRM device used by the parent compositor.master
Simon Ser
4 years ago
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7036dceb0e
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<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="drm">
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<copyright>
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Copyright © 2008-2011 Kristian Høgsberg
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Copyright © 2010-2011 Intel Corporation
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that\n the above copyright notice appear in
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all copies and that both that copyright notice and this permission
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notice appear in supporting documentation, and that the name of
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the copyright holders not be used in advertising or publicity
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pertaining to distribution of the software without specific,
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written prior permission. The copyright holders make no
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representations about the suitability of this software for any
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purpose. It is provided "as is" without express or implied
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warranty.
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THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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THIS SOFTWARE.
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</copyright>
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<!-- drm support. This object is created by the server and published
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using the display's global event. -->
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<interface name="wl_drm" version="2">
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<enum name="error">
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<entry name="authenticate_fail" value="0"/>
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<entry name="invalid_format" value="1"/>
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<entry name="invalid_name" value="2"/>
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</enum>
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<enum name="format">
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<!-- The drm format codes match the #defines in drm_fourcc.h.
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The formats actually supported by the compositor will be
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reported by the format event. New codes must not be added,
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unless directly taken from drm_fourcc.h. -->
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<entry name="c8" value="0x20203843"/>
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<entry name="rgb332" value="0x38424752"/>
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<entry name="bgr233" value="0x38524742"/>
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<entry name="xrgb4444" value="0x32315258"/>
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<entry name="xbgr4444" value="0x32314258"/>
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<entry name="rgbx4444" value="0x32315852"/>
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<entry name="bgrx4444" value="0x32315842"/>
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<entry name="argb4444" value="0x32315241"/>
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<entry name="abgr4444" value="0x32314241"/>
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<entry name="rgba4444" value="0x32314152"/>
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<entry name="bgra4444" value="0x32314142"/>
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<entry name="xrgb1555" value="0x35315258"/>
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<entry name="xbgr1555" value="0x35314258"/>
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<entry name="rgbx5551" value="0x35315852"/>
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<entry name="bgrx5551" value="0x35315842"/>
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<entry name="argb1555" value="0x35315241"/>
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<entry name="abgr1555" value="0x35314241"/>
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<entry name="rgba5551" value="0x35314152"/>
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<entry name="bgra5551" value="0x35314142"/>
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<entry name="rgb565" value="0x36314752"/>
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<entry name="bgr565" value="0x36314742"/>
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<entry name="rgb888" value="0x34324752"/>
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<entry name="bgr888" value="0x34324742"/>
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<entry name="xrgb8888" value="0x34325258"/>
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<entry name="xbgr8888" value="0x34324258"/>
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<entry name="rgbx8888" value="0x34325852"/>
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<entry name="bgrx8888" value="0x34325842"/>
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<entry name="argb8888" value="0x34325241"/>
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<entry name="abgr8888" value="0x34324241"/>
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<entry name="rgba8888" value="0x34324152"/>
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<entry name="bgra8888" value="0x34324142"/>
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<entry name="xrgb2101010" value="0x30335258"/>
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<entry name="xbgr2101010" value="0x30334258"/>
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<entry name="rgbx1010102" value="0x30335852"/>
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<entry name="bgrx1010102" value="0x30335842"/>
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<entry name="argb2101010" value="0x30335241"/>
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<entry name="abgr2101010" value="0x30334241"/>
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<entry name="rgba1010102" value="0x30334152"/>
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<entry name="bgra1010102" value="0x30334142"/>
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<entry name="yuyv" value="0x56595559"/>
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<entry name="yvyu" value="0x55595659"/>
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<entry name="uyvy" value="0x59565955"/>
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<entry name="vyuy" value="0x59555956"/>
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<entry name="ayuv" value="0x56555941"/>
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<entry name="xyuv8888" value="0x56555958"/>
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<entry name="nv12" value="0x3231564e"/>
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<entry name="nv21" value="0x3132564e"/>
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<entry name="nv16" value="0x3631564e"/>
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<entry name="nv61" value="0x3136564e"/>
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<entry name="yuv410" value="0x39565559"/>
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<entry name="yvu410" value="0x39555659"/>
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<entry name="yuv411" value="0x31315559"/>
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<entry name="yvu411" value="0x31315659"/>
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<entry name="yuv420" value="0x32315559"/>
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<entry name="yvu420" value="0x32315659"/>
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<entry name="yuv422" value="0x36315559"/>
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<entry name="yvu422" value="0x36315659"/>
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<entry name="yuv444" value="0x34325559"/>
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<entry name="yvu444" value="0x34325659"/>
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<entry name="abgr16f" value="0x48344241"/>
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<entry name="xbgr16f" value="0x48344258"/>
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</enum>
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<!-- Call this request with the magic received from drmGetMagic().
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It will be passed on to the drmAuthMagic() or
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DRIAuthConnection() call. This authentication must be
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completed before create_buffer could be used. -->
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<request name="authenticate">
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<arg name="id" type="uint"/>
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</request>
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<!-- Create a wayland buffer for the named DRM buffer. The DRM
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surface must have a name using the flink ioctl -->
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<request name="create_buffer">
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<arg name="id" type="new_id" interface="wl_buffer"/>
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<arg name="name" type="uint"/>
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<arg name="width" type="int"/>
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<arg name="height" type="int"/>
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<arg name="stride" type="uint"/>
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<arg name="format" type="uint"/>
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</request>
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<!-- Create a wayland buffer for the named DRM buffer. The DRM
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surface must have a name using the flink ioctl -->
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<request name="create_planar_buffer">
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<arg name="id" type="new_id" interface="wl_buffer"/>
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<arg name="name" type="uint"/>
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<arg name="width" type="int"/>
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<arg name="height" type="int"/>
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<arg name="format" type="uint"/>
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<arg name="offset0" type="int"/>
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<arg name="stride0" type="int"/>
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<arg name="offset1" type="int"/>
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<arg name="stride1" type="int"/>
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<arg name="offset2" type="int"/>
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<arg name="stride2" type="int"/>
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</request>
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<!-- Notification of the path of the drm device which is used by
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the server. The client should use this device for creating
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local buffers. Only buffers created from this device should
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be be passed to the server using this drm object's
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create_buffer request. -->
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<event name="device">
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<arg name="name" type="string"/>
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</event>
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<event name="format">
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<arg name="format" type="uint"/>
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</event>
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<!-- Raised if the authenticate request succeeded -->
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<event name="authenticated"/>
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<enum name="capability" since="2">
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<description summary="wl_drm capability bitmask">
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Bitmask of capabilities.
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</description>
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<entry name="prime" value="1" summary="wl_drm prime available"/>
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</enum>
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<event name="capabilities">
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<arg name="value" type="uint"/>
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</event>
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<!-- Version 2 additions -->
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<!-- Create a wayland buffer for the prime fd. Use for regular and planar
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buffers. Pass 0 for offset and stride for unused planes. -->
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<request name="create_prime_buffer" since="2">
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<arg name="id" type="new_id" interface="wl_buffer"/>
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<arg name="name" type="fd"/>
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<arg name="width" type="int"/>
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<arg name="height" type="int"/>
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<arg name="format" type="uint"/>
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<arg name="offset0" type="int"/>
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<arg name="stride0" type="int"/>
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<arg name="offset1" type="int"/>
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<arg name="stride1" type="int"/>
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<arg name="offset2" type="int"/>
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<arg name="stride2" type="int"/>
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</request>
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</interface>
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</protocol>
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