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By exploiting gen7's hardware decompression bug with vstride=0 we gain the capacity to support additional swizzle combinations. This also fixes ZW writes from X/Y channels like in: mov r2.z:df r0.xxxx:df Because DF regions use 2-wide rows with a vstride of 2, the region generated for the source would be r0<2,2,1>.xyxy:DF, which is equivalent to r0.xxzz, so we end up writing r0.z in r2.z instead of r0.x. Using a vertical stride of 0 in these cases we get to replicate the XX swizzle and write what we want. Reviewed-by: Matt Turner <mattst88@gmail.com> |
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| intel | ||
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| util | ||
| vulkan/wsi | ||
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