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66 lines
1.7 KiB
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66 lines
1.7 KiB
ReStructuredText
D3D12
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=====
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Overview
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--------
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The D3D12 driver is a Gallium driver that emits API calls for Microsoft's
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:abbr:`D3D12 (Direct3D 12)` API instead of targeting a specific GPU
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architecture. This can be used to get full desktop OpenGL 3.3 support on
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devices that only support D3D12.
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Debugging
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---------
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There's a few tools that are useful for debugging D3D12, such as these
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environment variables:
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.. envvar:: D3D12_DEBUG
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Accepts the following comma-separated list of flags:
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``verbose``
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Enable verbose output to stdout
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``blit``
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Trace blit and copy resource calls
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``experimental``
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Enable experimental shader models feature
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``dxil``
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Dump DXIL during program compile
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``disass``
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Dump disassambly of created DXIL shader
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``res``
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Debug resources
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``debuglayer``
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Enable `debug layer`_
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``gpuvalidator``
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Enable `GPU validator`_
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.. envvar:: DXIL_DEBUG
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Accepts the following comma-separated list of flags:
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``verbose``
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Enable verbose output to stdout
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``dump_blob``
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Write shader blobs
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``trace``
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Trace instruction conversion
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``dump_module``
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dump module tree to stderr
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.. _debug layer: https://learn.microsoft.com/en-us/windows/win32/direct3d12/understanding-the-d3d12-debug-layer
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.. _GPU validator: https://learn.microsoft.com/en-us/windows/win32/direct3d12/using-d3d12-debug-layer-gpu-based-validation
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Utilities
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---------
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Environment variables that control the behavior of the D3D12 driver.
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.. envvar:: MESA_D3D12_DEFAULT_ADAPTER_NAME
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Specifies a substring to search for when choosing a default adapter to
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run on. The first adapter matching the substring is chosen. The substring
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is not case sensitive.
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