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ps54allandClaude Opus 5.5 a18d6e9a6b feat(shader): store D16 data to SINT storage images
image_store with D16 data to a storage image of a SINT format threw
"stores 16-bit data to an image of a SINT format", both when the
descriptor is decoded and in the SPIR-V image emitter, and the runtime
image modes left out the SINT conversions for such images. God of War
Ragnarok (PPSA08330) stops on it in compute shader 0x1052a17900 right
after its MFSR setup.

Each 16-bit half is now converted like the D16 format buffer stores
(EmitD16StoreComponent): sign-extended, then saturated to the
component width as for 32-bit data. The buffer form was measured on
RDNA2 in #331; the image form is not measured (TechnicalDebt).

agc_driver_image_store_sint now stores D16 data with DMASK 0xf and 0x5
to all eight SINT formats and after an image_atomic_add on 32_SINT,
instead of expecting the refusal.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-16 13:18:38 +02:00
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