Map DXGI HRESULTS to D3DERR HRESULTS so that d3d9 apps can react appropriately#102
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Map DXGI HRESULTS to D3DERR HRESULTS so that d3d9 apps can react appropriately#102
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jenatali
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Feb 23, 2026
include/9on12Util.h
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| { | ||
| switch (hr) | ||
| { | ||
| case DXGI_ERROR_DEVICE_REMOVED: return D3DERR_DEVICEREMOVED; |
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Nit: There's technically D3DDDIERR_ versions of these, but I think from looking at the definitions, they're actually exactly the same values. Might be slightly clearer though since this is a driver, to return driver error codes.
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It looks like the the D3DDDIERR versions aren't comprehensive, but I can at least use the device removed one?
jenatali
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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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D3D9 apps don't expect to receive DXGI HRESULTS, and D3D9 doesn't know to remap them either. This meant that when the error code was bubbled up to apps, they would often crash rather than trying to handle the error more gracefully.
The particular error I've seen reported was DXGI_ERROR_DEVICE_REMOVED, but I added a few more to the mapping for good measure.