D3D12¶
Overview¶
The D3D12 driver is a Gallium driver that emits API calls for Microsoft’s D3D12 API instead of targeting a specific GPU architecture. This can be used to get full desktop OpenGL 3.3 support on devices that only support D3D12.
Debugging¶
There’s a few tools that are useful for debugging D3D12, such as these environment variables:
- D3D12_DEBUG¶
Accepts the following comma-separated list of flags:
verbose
Enable verbose output to stdout
blit
Trace blit and copy resource calls
experimental
Enable experimental shader models feature
dxil
Dump DXIL during program compile
disass
Dump disassambly of created DXIL shader
res
Debug resources
debuglayer
Enable debug layer
gpuvalidator
Enable GPU validator
- DXIL_DEBUG¶
Accepts the following comma-separated list of flags:
verbose
Enable verbose output to stdout
dump_blob
Write shader blobs
trace
Trace instruction conversion
dump_module
dump module tree to stderr
Utilities¶
Environment variables that control the behavior of the D3D12 driver.
- MESA_D3D12_DEFAULT_ADAPTER_NAME¶
Specifies a substring to search for when choosing a default adapter to run on. The first adapter matching the substring is chosen. The substring is not case sensitive.