cmdbuf.xml

<agxml>
  <enum name="Channel">
    <value name="R" value="0"/>
    <value name="G" value="1"/>
    <value name="B" value="2"/>
    <value name="A" value="3"/>
    <value name="1" value="4"/>
    <value name="0" value="5"/>
  </enum>

  <enum name="ZS Func">
    <value name="Never" value="0"/>
    <value name="Less" value="1"/>
    <value name="Equal" value="2"/>
    <value name="Lequal" value="3"/>
    <value name="Greater" value="4"/>
    <value name="Not Equal" value="5"/>
    <value name="Gequal" value="6"/>
    <value name="Always" value="7"/>
  </enum>

  <enum name="Compare func">
    <value name="Lequal" value="0"/>
    <value name="Gequal" value="1"/>
    <value name="Less" value="2"/>
    <value name="Greater" value="3"/>
    <value name="Equal" value="4"/>
    <value name="Not Equal" value="5"/>
    <value name="Always" value="6"/>
    <value name="Never" value="7"/>
  </enum>

  <enum name="Stencil Op">
    <value name="Keep" value="0"/>
    <value name="Zero" value="1"/>
    <value name="Replace" value="2"/>
    <value name="Incr Sat" value="3"/>
    <value name="Decr Sat" value="4"/>
    <value name="Invert" value="5"/>
    <value name="Incr Wrap" value="6"/>
    <value name="Decr Wrap" value="7"/>
  </enum>

  <enum name="Polygon Mode">
    <value name="Fill" value="0"/>
    <value name="Line" value="1"/>
    <value name="Point" value="2"/>
  </enum>

  <enum name="Primitive">
    <value name="Points" value="0"/>
    <value name="Lines" value="1"/>
    <value name="Line strip" value="3"/>
    <value name="Line loop" value="5"/>
    <value name="Triangles" value="6"/>
    <value name="Triangle strip" value="9"/>
    <value name="Triangle fan" value="10"/>
    <value name="Quads" value="14"/> <!-- guess, confirm with piglit later XXX -->
    <value name="Quad strip" value="15"/> <!-- guess, confirm with piglit later XXX -->
  </enum>

  <enum name="Layout">
    <value name="Linear" value="0"/>
    <!-- Morton order with 64x64 tiles -->
    <value name="Tiled 64x64" value="2"/>
  </enum>

  <enum name="Channels">
    <value name="R8" value="0x00"/>
    <value name="R16" value="0x09"/>
    <value name="R8G8" value="0x0A"/>
    <value name="R5G6B5" value="0x0B"/>
    <value name="R4G4B4A4" value="0x0C"/>
    <value name="A1R5G5B5" value="0x0D"/>
    <value name="R5G5B5A1" value="0x0E"/>
    <value name="R32" value="0x21"/>
    <value name="R16G16" value="0x23"/>
    <value name="R11G11B10" value="0x25"/>
    <value name="R10G10B10A2" value="0x26"/>
    <value name="R9G9B9E5" value="0x27"/>
    <value name="R8G8B8A8" value="0x28"/>
    <value name="R32G32" value="0x31"/>
    <value name="R16G16B16A16" value="0x32"/>
    <value name="R32G32B32A32" value="0x38"/>
    <value name="GBGR 422" value="0x40"/> <!-- Subsampled, swizzle BRG1 -->
    <value name="BGRG 422" value="0x41"/> <!-- Subsampled, swizzle BRG1 -->

    <!-- Compressed -->
    <value name="PVRTC 2bpp" value="0x50"/>
    <value name="PVRTC 4bpp" value="0x51"/>

    <value name="ETC2 RGB8" value="0x58"/>
    <value name="ETC2 RGBA8" value="0x59"/>
    <value name="ETC2 RGB8A1" value="0x5A"/>
    <value name="EAC R11" value="0x5B"/>
    <value name="EAC RG11" value="0x5C"/>

    <value name="ASTC 4x4 LDR" value="0x60"/>
    <value name="ASTC 5x4 LDR" value="0x61"/>
    <value name="ASTC 5x5 LDR" value="0x62"/>
    <value name="ASTC 6x5 LDR" value="0x63"/>
    <value name="ASTC 6x6 LDR" value="0x64"/>
    <value name="ASTC 8x5 LDR" value="0x65"/>
    <value name="ASTC 8x6 LDR" value="0x66"/>
    <value name="ASTC 8x8 LDR" value="0x67"/>
    <value name="ASTC 10x5 LDR" value="0x68"/>
    <value name="ASTC 10x6 LDR" value="0x69"/>
    <value name="ASTC 10x8 LDR" value="0x6A"/>
    <value name="ASTC 10x10 LDR" value="0x6B"/>
    <value name="ASTC 12x10 LDR" value="0x6C"/>
    <value name="ASTC 12x12 LDR" value="0x6D"/>

    <value name="BC1" value="0x74"/>
    <value name="BC2" value="0x75"/>
    <value name="BC3" value="0x76"/>
    <value name="BC4" value="0x77"/>
    <value name="BC5" value="0x78"/>
    <value name="BC6H" value="0x79"/>
    <value name="BC6H Ufloat" value="0x7A"/>
    <value name="BC7" value="0x7B"/>
  </enum>

  <enum name="Texture Type">
    <value name="Unorm" value="0"/>
    <value name="Snorm" value="1"/>
    <value name="Uint" value="2"/>
    <value name="Sint" value="3"/>
    <value name="Float" value="4"/>
    <value name="XR" value="5"/>
  </enum>

  <struct name="Varying header" size="4">
    <field name="Triangle slots" size="8" start="0:0" type="uint"/>
    <field name="Point slots" size="8" start="0:8" type="uint"/>
  </struct>

  <enum name="Varying Type">
    <value name="Flat (first)" value="0"/>
    <value name="Flat (last)" value="2"/>
    <value name="Fragcoord W" value="3"/>
    <value name="Smooth" value="7"/>
    <value name="Fragcoord Z" value="11"/>
    <value name="Point coordinates" value="19"/>
  </enum>

  <struct name="Varying" size="4">
    <field name="Components" size="2" start="0" type="uint" modifier="minus(1)"/>
    <field name="Type" size="6" start="2" type="Varying Type" default="Smooth"/>
    <field name="Triangle slot" size="8" start="8" type="uint"/>
    <field name="Point slot" size="8" start="16" type="uint"/>
  </struct>

  <struct name="Format" size="2">
    <field name="Channels" size="7" start="0" type="Channels"/>
    <field name="Type" size="3" start="7" type="Texture Type"/>
  </struct>

  <struct name="Render Target" size="16">
    <field name="Unknown" size="4" start="0" type="hex" default="0x2"/>
    <field name="Layout" size="2" start="4" type="Layout"/>
    <field name="Format" size="10" start="6" type="Pixel Format"/>
    <field name="Swizzle R" size="2" start="16" type="Channel"/>
    <field name="Swizzle G" size="2" start="18" type="Channel"/>
    <field name="Swizzle B" size="2" start="20" type="Channel"/>
    <field name="Swizzle A" size="2" start="22" type="Channel"/>
    <field name="Width" size="14" start="24" type="uint" modifier="minus(1)"/>
    <field name="Height" size="14" start="38" type="uint" modifier="minus(1)"/>
    <field name="Unk 52" size="1" start="52" type="bool"/>
    <field name="Rotate 90" size="1" start="53" type="bool" default="false"/>
    <field name="Flip vertical" size="1" start="54" type="bool" default="false"/>
    <field name="Unk 55" size="9" start="55" type="hex"/>
    <field name="Buffer" size="36" start="64" type="address" modifier="shr(4)"/>
    <!-- N.b. sRGB is not specified here -->
    <!-- Off by 4? -->
    <field name="Stride" size="24" start="104" type="hex" prefix="AGX_RT_STRIDE">
      <value name="Tiled" value="0x100000"/>
    </field>
  </struct>

  <!-- Payloads follow, right-shifted by 4 because of course -->
  <struct name="Texture" size="16">
    <field name="Unknown" size="4" start="0" type="hex" default="0x2"/>
    <field name="Layout" size="2" start="4" type="Layout"/>
    <field name="Format" size="10" start="6" type="Pixel Format"/>
    <field name="Swizzle R" size="3" start="16" type="Channel" default="R"/>
    <field name="Swizzle G" size="3" start="19" type="Channel" default="G"/>
    <field name="Swizzle B" size="3" start="22" type="Channel" default="B"/>
    <field name="Swizzle A" size="3" start="25" type="Channel" default="A"/>
    <field name="Width" size="14" start="28" type="uint" modifier="minus(1)"/>
    <field name="Height" size="14" start="42" type="uint" modifier="minus(1)"/>
    <field name="Levels" size="6" start="60" type="uint" modifier="minus(1)"/>
    <field name="Unk 1" size="36" start="66" type="hex" modifier="shr(4)"/>
    <!-- Unknown bit set by Metal when mipmapping. Might relate to a mechanism
    to switch tile size (or disable tiling altogether?) at small mip levels to
    reduce wasted memory due to padding. Causing test flakiness when set. -->
    <field name="Unk mipmapped" size="1" start="102" type="bool"/>
    <field name="Compression" size="2" start="106" type="hex"/> <!-- 0 for 64x64 tiling -->
    <field name="sRGB" size="1" start="108" type="bool"/>
    <field name="Unk 2" size="1" start="109" type="bool"/>
    <field name="Stride" size="18" start="110" type="hex" modifier="shr(4)"/>
  </struct>

  <enum name="Wrap">
    <value name="Clamp to edge" value="0"/>
    <value name="Repeat" value="1"/>
    <value name="Mirrored repeat" value="2"/>
    <value name="Clamp to border" value="3"/>
  </enum>

  <enum name="Mip filter">
    <value name="None" value="0"/>
    <value name="Nearest" value="1"/>
    <value name="Linear" value="2"/>
  </enum>

  <enum name="Border colour">
    <value name="Transparent black" value="0"/>
    <value name="Opaque black" value="1"/>
    <value name="Opaque white" value="2"/>
  </enum>

  <struct name="Sampler" size="8">
    <field name="Unk 1" size="2" start="17" type="hex" default="3"/>
    <field name="Unk 2" size="1" start="19" type="bool" default="true"/>
    <field name="Magnify linear" size="1" start="23" type="bool"/>
    <field name="Minify linear" size="1" start="25" type="bool"/>
    <field name="Mip filter" size="2" start="27" type="Mip filter"/>
    <field name="Wrap S" size="3" start="29" type="Wrap"/>
    <field name="Wrap T" size="3" start="32" type="Wrap"/>
    <field name="Wrap R" size="3" start="35" type="Wrap"/>
    <field name="Pixel coordinates" size="1" start="38" type="bool"/>
    <field name="Compare func" size="3" start="39" type="Compare func"/>
    <field name="Unk 3" size="1" start="42" type="hex" default="1"/>
    <field name="Border colour" size="2" start="55" type="Border colour"/>
  </struct>

  <!--- Identified by tag? -->
  <struct name="Viewport" size="40">
    <field name="Tag" size="32" start="0:0" type="hex" default="0xc00"/>

    <!-- Acts like a scissor at 32x32 tile boundaries, ignored unless clip tile is set -->
    <field name="Max tile X" size="9" start="1:0" type="uint" modifier="minus(1)"/>
    <field name="Min tile X" size="9" start="1:16" type="uint"/>
    <field name="Clip tile" size="1" start="1:31" type="bool"/>
    <field name="Max tile Y" size="9" start="2:0" type="uint" modifier="minus(1)"/>
    <field name="Min tile Y" size="9" start="2:16" type="uint"/>

    <!-- Used to convert clip space coordinates to NDC, does not clip -->
    <field name="Translate X" size="32" start="4:0" type="float"/>
    <field name="Scale X" size="32" start="5:0" type="float"/>
    <field name="Translate Y" size="32" start="6:0" type="float"/>
    <field name="Scale Y" size="32" start="7:0" type="float"/>

    <!-- Specifies an affine transformation from clip coordinates to viewport
    depth coordinates. For APIs with clip coordinates [0, 1], this cooresponds
    to near z and (far z - near z) respectively. In general, given clip
    coordinate z_in, the viewport depth is given as (z_in * scale_z) +
    translate_z.  For example, the default [0, 1] depth buffer in OpenGL with
    [-1, +1] clip coordinates is specified as scale = 1/2, bias = 1/2 -->
    <field name="Translate Z" size="32" start="8:0" type="float"/>
    <field name="Scale Z" size="32" start="9:0" type="float"/>
  </struct>

  <!--- Pointed to from the command buffer -->
  <struct name="Scissor" size="16">
    <field name="Max X" size="16" start="0:0" type="uint"/>
    <field name="Min X" size="16" start="0:16" type="uint"/>
    <field name="Max Y" size="16" start="1:0" type="uint"/>
    <field name="Min Y" size="16" start="1:16" type="uint"/>
    <field name="Min Z" size="32" start="2:0" type="float"/>
    <field name="Max Z" size="32" start="3:0" type="float"/>
  </struct>

  <struct name="Rasterizer face" size="8">
    <field name="Stencil reference" size="8" start="0:0" type="hex"/>
    <!-- line width is 4:4 fixed point with off-by-one applied -->
    <field name="Line width" size="8" start="0:8" type="hex"/>
    <field name="Polygon mode" size="2" start="0:18" type="Polygon Mode"/>
    <field name="Disable depth write" size="1" start="0:21" type="bool"/>
    <field name="Depth function" size="3" start="0:24" type="ZS Func"/>
    <field name="Stencil write mask" size="8" start="1:0" type="hex"/>
    <field name="Stencil read mask" size="8" start="1:8" type="hex"/>
    <field name="Depth pass" size="3" start="1:16" type="Stencil Op"/>
    <field name="Depth fail" size="3" start="1:19" type="Stencil Op"/>
    <field name="Stencil fail" size="3" start="1:22" type="Stencil Op"/>
    <field name="Stencil compare" size="3" start="1:25" type="ZS Func"/>
  </struct>

  <struct name="Rasterizer" size="28">
    <field name="Tag" size="32" start="0:0" type="hex" default="0x10000b5"/>
    <field name="Unk 1" size="1" start="1:9" type="hex" default="0x1"/>
    <field name="Scissor enable" size="1" start="1:16" type="bool"/>
    <field name="Unk ZS" size="1" start="1:18" type="hex" default="0x1"/>
    <field name="Unk 2" size="2" start="1:19" type="hex" default="0x0"/>
    <field name="Unk fill lines" size="1" start="1:26" type="hex" default="0x0"/> <!-- set when drawing LINES -->
    <field name="Front" size="64" start="2:0" type="Rasterizer face"/>
    <field name="Back" size="64" start="4:0" type="Rasterizer face"/>
  </struct>

  <struct name="Cull" size="8">
    <field name="Tag" size="32" start="0:0" type="hex" default="0x200000"/>
    <field name="Cull front" size="1" start="1:0" type="bool"/>
    <field name="Cull back" size="1" start="1:1" type="bool"/>
    <field name="Unk GL 1" size="1" start="1:7" type="bool"/>
    <field name="Unk GL 2" size="1" start="1:8" type="bool"/>
    <field name="Depth clip" size="1" start="1:10" type="bool"/>
    <field name="Depth clamp" size="1" start="1:11" type="bool"/>
    <field name="Front face CCW" size="1" start="1:16" type="bool"/>
  </struct>

  <struct name="Interpolation" size="20">
    <field name="Tag" size="32" start="0:0" type="hex" default="0x100C0000"/>
    <field name="Varying count" size="32" start="1:0" type="uint"/>
  </struct>

  <struct name="Linkage" size="16">
    <field name="Tag" size="32" start="0:0" type="hex" default="0xC020000"/>
    <field name="Unk 1" size="32" start="1:0" type="hex" default="0x100"/>
    <field name="Unk 2" size="32" start="2:0" type="hex" default="0x0"/>
    <field name="Varying count" size="32" start="3:0" type="uint"/>
  </struct>

  <!-- Indexes into the array of scissor descriptors -->
  <struct name="Set scissor" size="8">
    <field name="Tag" size="32" start="0:0" type="hex" default="0x100"/>
    <field name="Index" size="32" start="1:0" type="uint"/>
  </struct>

  <!--- Commands valid within a pipeline -->
  <struct name="Bind uniform" size="8">
    <field name="Tag" size="8" start="0:0" type="hex" default="0x1d"/>
    <field name="Start (halfs)" size="8" start="0:8" type="uint"/>
    <field name="Unk" size="4" start="0:16" type="hex" default="0x0"/>
    <field name="Size (halfs)" size="4" start="0:20" type="uint"/>
    <field name="Buffer" size="40" start="0:24" type="address"/>
  </struct>

  <struct name="Bind texture" size="8">
    <field name="Tag" size="8" start="0:0" type="hex" default="0xdd"/>
    <field name="Start" size="8" start="0:8" type="uint"/>
    <field name="Count" size="4" start="0:20" type="uint"/>
    <field name="Buffer" size="40" start="0:24" type="address"/>
  </struct>

  <struct name="Bind sampler" size="8">
    <field name="Tag" size="8" start="0:0" type="hex" default="0x9d"/>
    <field name="Start" size="8" start="0:8" type="uint"/>
    <field name="Count" size="4" start="0:20" type="uint"/>
    <field name="Buffer" size="40" start="0:24" type="address"/>
  </struct>

  <enum name="Preshader mode">
    <value name="Preshader" value="3"/>
    <value name="No preshader" value="8"/>
  </enum>

  <struct name="Set shader" size="24">
    <field name="Tag" size="8" start="0:0" type="hex" default="0x4d"/>
    <field name="Unk 1" size="24" start="0:8" type="hex" default="0x90"/>
    <field name="Unk 2" size="8" start="1:0" type="hex" default="0x0d"/> <!-- TODO differs with stage -->
    <field name="Unk 2b" size="8" start="1:8" type="uint" default="4"/>
    <field name="Code" size="32" start="1:16" type="address"/>
    <field name="Unk 3" size="8" start="2:16" type="hex" default="0x8d"/>
    <field name="Register quadwords" size="5" start="2:24" type="uint"/> <!-- 0 for max -->
    <field name="Unk 3b" size="3" start="2:29" type="hex" default="0x0"/>
    <field name="Spill size" size="8" start="3:0" type="hex" default="0"/> <!-- TODO: determine relation, see docs/table.py -->
    <field name="Unk 4" size="12" start="3:8" type="hex" default="0x801"/>
    <field name="Preshader mode" size="4" start="3:20" type="Preshader mode" default="No preshader"/>
    <field name="Unk 6" size="8" start="3:24" type="hex" default="0x0"/>
    <field name="Preshader unk" size="16" start="4:0" type="hex" default="0x0"/>
    <field name="Preshader code" size="32" start="4:16" type="address"/>
    <field name="Unk 7" size="16" start="5:16" type="hex" default="0x0"/> <!-- blob is inconsistent -->
  </struct>

  <struct name="Set shader extended" size="32">
    <field name="Tag" size="8" start="0:0" type="hex" default="0x4d"/>
    <field name="Unk 1" size="24" start="0:8" type="hex" default="0x2010bd"/>
    <field name="Unk 2" size="8" start="1:0" type="hex" default="0x0d"/> <!-- 90d if ld_tile or discard is used (to disable opts), 50d for other frag, 80d for vert..? 40d for compute..? -->
    <field name="Unk 2b" size="8" start="1:8" type="uint" default="5"/>
    <field name="Code" size="32" start="1:16" type="address"/>
    <field name="Unk 3" size="8" start="2:16" type="hex" default="0x28d"/>
    <field name="Register quadwords" size="5" start="2:24" type="uint"/> <!-- 0 for max -->
    <field name="Unk 3b" size="3" start="2:29" type="hex" default="0x0"/>
    <field name="Frag unk" size="32" start="3:0" type="hex" default="0xf3580100"/>
    <field name="Spill size" size="8" start="4:0" type="hex" default="0"/> <!-- TODO: determine relation, see docs/table.py -->
    <field name="Unk 4" size="12" start="4:8" type="hex" default="0x801"/>
    <field name="Preshader mode" size="4" start="4:20" type="Preshader mode" default="No preshader"/>
    <field name="Unk 6" size="8" start="4:24" type="hex" default="0x0"/>
    <field name="Preshader unk" size="16" start="5:0" type="hex" default="0x0"/>
    <field name="Preshader code" size="32" start="5:16" type="address"/>
    <field name="Unk 7" size="16" start="6:16" type="hex" default="0x0"/> <!-- blob is inconsistent -->
    <field name="Unk 8" size="32" start="7:0" type="hex" default="0x0"/> <!-- may not exist -->
  </struct>

  <!--- Command to bind a vertex pipeline, followed by subcommands. Counts are
	specified in 32-bit word units. Intepretation per-shader stage.
	Probably actually 17 bytes. -->
  <struct name="Bind pipeline" size="16">
    <field name="Tag" size="32" start="0:0" type="hex" default="0x4000002e">
      <value name="AGX_BIND_PIPELINE_VERTEX" value="0x4000002e"/>
      <value name="AGX_BIND_PIPELINE_FRAGMENT" value="0x800000"/>
    </field>
    <field name="Unk 1" size="4" start="1:0" type="hex" default="0x2"/>
    <field name="Sampler count" start="1:4" size="5" type="uint"/>
    <field name="Texture count" start="1:9" size="3" type="uint"/>
    <field name="Unk 2" size="4" start="1:12" type="hex" default="0x1"/>
    <field name="Input count" size="8" start="1:16" type="uint" default="0"/>
    <field name="Padding 1" size="8" start="1:24" type="hex" default="0x0"/>
    <field name="Pipeline" size="32" start="2:0" type="address"/>

    <!-- Overlaps -->
    <field name="FS Varyings" size="32" start="3:0" type="address"/>
    <field name="VS Output count 1" size="8" start="3:0" type="uint" default="0"/>
    <field name="VS Output count 2" size="8" start="3:8" type="uint" default="0"/>
    <field name="Padding 2" size="16" start="3:16" type="hex" default="0x0"/>
  </struct>

  <!-- Subcommands are packed inside sized records -->
  <struct name="Record" size="8">
    <field name="Size (words)" size="8" start="0:0" type="uint"/>
    <field name="Tag" size="16" start="0:8" type="hex" default="0x0000"/>
    <field name="Data" size="40" start="0:24" type="address"/>
  </struct>

  <!--- Command to issue a direct non-indexed draw -->
  <struct name="Draw" size="16">
    <field name="Unk" size="8" start="0:0" type="hex" default="0x0"/>
    <field name="Primitive" size="8" start="0:8" type="Primitive"/>
    <field name="Command" size="16" start="0:16" type="hex" default="0x61c0"/>
    <field name="Vertex count" size="32" start="1:0" type="uint"/>
    <field name="Instance count" size="32" start="2:0" type="uint"/> <!-- must be nonzero -->
    <field name="Vertex start" size="32" start="3:0" type="uint"/>
  </struct>

  <enum name="Index size">
    <value name="U8" value="0"/>
    <value name="U16" value="1"/>
    <value name="U32" value="2"/>
  </enum>

  <struct name="Indexed draw" size="32">
    <field name="Unk 1" size="8" start="0:0" type="hex" default="0x1"/>
    <field name="Command" size="24" start="0:8" type="hex" default="0x400000"/>
    <field name="Restart index" size="32" start="1:0" type="hex"/>
    <field name="Unk 2a" size="8" start="2:0" type="hex" default="0x15"/>
    <field name="Primitive" size="8" start="2:8" type="Primitive"/>
    <field name="Restart enable" size="1" start="2:16" type="bool"/> <!-- Metal sets this bit for strips -->
    <field name="Index size" size="3" start="2:17" type="Index size"/>
    <field name="Unk 2c" size="4" start="2:20" type="hex" default="0xF"/>
    <field name="Unk 2d" size="8" start="2:24" type="hex" default="0x61"/>
    <field name="Index buffer offset" size="32" start="3:0" type="hex"/>
    <field name="Index count" size="32" start="4:0" type="uint"/>
    <field name="Instance count" size="32" start="5:0" type="uint"/>
    <field name="Base vertex" size="32" start="6:0" type="uint"/>
    <field name="Index buffer size" size="32" start="7:0" type="uint" modifier="shr(2)"/>
  </struct>

  <!--- Command to launch a direct compute kernel -->
  <struct name="Launch" size="36">
    <field name="Command" size="32" start="0:0" type="hex" default="0x1002"/>
    <field name="Pipeline" size="32" start="1:0" type="address"/>
    <field name="Group count X" size="32" start="2:0" type="uint"/>
    <field name="Group count Y" size="32" start="3:0" type="uint"/>
    <field name="Group count Z" size="32" start="4:0" type="uint"/>
    <field name="Local size X" size="32" start="5:0" type="uint"/>
    <field name="Local size Y" size="32" start="6:0" type="uint"/>
    <field name="Local size Z" size="32" start="7:0" type="uint"/>
    <field name="Unk" size="32" start="8:0" type="hex" default="0x60000160"/>
  </struct>

  <!--- The rest of this file is likely software defined by macOS kernel -->
  <enum name="IOGPU Attachment Type">
    <value name="Colour" value="0xA"/>
    <value name="Depth" value="0xC"/>
  </enum>

  <struct name="IOGPU Header" size="64">
    <field name="Unk 0" start="0:0" size="32" default="0x10000" type="hex"/>
    <field name="Total size" start="1:0" size="32" type="uint"/>
    <field name="Unk 2" start="2:0" size="32" default="0x7" type="hex"/>
    <field name="Attachment offset 1" start="8:0" size="32" type="uint"/>
    <field name="Attachment length" start="9:0" size="32" type="uint"/>
    <field name="Attachment offset 2" start="10:0" size="32" type="uint"/>
    <field name="Unknown offset" start="11:0" size="32" type="uint"/>
    <field name="Unk 4" start="12:0" size="32" default="0x30" type="hex"/>
    <field name="Unk 5" start="13:0" size="32" default="0x01" type="hex"/>
    <field name="Encoder" start="14:0" size="64" type="address"/>
  </struct>

  <struct name="IOGPU Attachment" size="24">
    <field name="Unk 0" start="0:0" size="16" default="0x100" type="hex"/>
    <field name="Address" start="0:16" size="48" type="address"/>
    <field name="Type" start="2:16" size="16" type="IOGPU Attachment Type"/>
    <field name="Unk 1" start="3:0" size="32" type="hex"/>
    <field name="Unk 2" start="4:0" size="3" type="hex"/>
    <field name="Bytes per pixel" start="4:3" size="5" type="uint"/>
    <field name="Unk 3" start="4:16" size="4" type="hex" default="0xC"/>
    <!-- Percent of total attachment space used for this attachment, expressed
         in a decimal percentage [0, 100] <field name="Percent" start="5:16" -->
    <field name="Percent" start="5:16" size="16" type="uint"/>
  </struct>
</agxml>