Use tighter packing for non-planar resources#105
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We don't need to use the higher alignment requirement imposed by GetCopyableFootprints when UnrestrictedBufferTextureCopyPitchSupported is true.
jenatali
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Mar 15, 2026
vdwtanner
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Apr 14, 2026
We don't need to use the higher alignment requirement imposed by GetCopyableFootprints when UnrestrictedBufferTextureCopyPitchSupported is true. (cherry picked from commit e9809ff) (cherry picked from commit 808ffc88dd766513754037ff342ac9031b78df21)
vdwtanner
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…n-planar resources * Map DXGI HRESULTS to D3DERR/D3DDDIERR HRESULTS so that d3d9 apps can react appropriately ([#102](#102) ) * Contain dxgi error code mapping fix * Remove debug assert in ConvertBoxToRect ([#103](#103)) * Contain debug assert fix * Use tighter packing for non-planar resources ([#105](#105)) * Contain tighter packing for non-planar resources change Backport bug: https://microsoft.visualstudio.com/OS/_workitems/edit/61561225/ ---- #### AI description (iteration 1) #### PR Classification This pull request implements an API enhancement by optimizing non-planar resource packing and improving DXGI error code translation for D3D9. #### PR Summary The changes introduce a feature-flag-controlled tighter packing strategy in resource memory layout and add a new inline function to map DXGI error codes to their D3D9 counterparts, ensuring more efficient error handling and resource management. - **`src/9on12Resource.cpp`**: Implements tighter packing for non-planar resources by recalculating row pitches and total size when the feature is enabled. - **`include/9on12Util.h`**: Adds the `TranslateDxgiHrToD3D9` function and updates error handling macros to use a cached feature flag for efficient DXGI error translation. - **`src/9on12Blit.cpp`**: Adjusts the box-to-rectangle conversion check to conditionally bypass strict validations based on the feature flag. - **`src/CMakeLists.txt` & `include/pch.h`**: Update build dependencies and include directories to support the new feature integration. <!-- GitOpsUserAgent=GitOps.Apps.Server.pullrequestcopilot -->
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We don't need to use the higher alignment requirement imposed by GetCopyableFootprints when UnrestrictedBufferTextureCopyPitchSupported is true. Noticed that this seems to have issues with NV12, so I disabled this for planar resources.
Requires microsoft/D3D12TranslationLayer#108