Re: [FFmpeg-devel] [PATCH v7] libavfilter/x86/vf_convolution: add sobel filter optimization and unit test with intel AVX512 VNNI

Sun, 13 Nov 2022 18:42:48 -0800 

On 11/4/2022 5:29 AM, [email protected] wrote:

+%macro FILTER_SOBEL 0
+%if UNIX64
+cglobal filter_sobel, 4, 15, 7, dst, width, matrix, ptr, c0, c1, c2, c3, c4, 
c5, c6, c7, c8, r, x
+%else
+cglobal filter_sobel, 4, 15, 7, dst, width, rdiv, bias, matrix, ptr, c0, c1, 
c2, c3, c4, c5, c6, c7, c8, r, x
+%endif
+%if WIN64
+    SWAP xmm0, xmm2
+    SWAP xmm1, xmm3
+    mov  r2q, matrixmp
+    mov  r3q, ptrmp
+    DEFINE_ARGS dst, width, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, c7, c8, 
r, x
+%endif
+    movsxdifnidn widthq, widthd
+    VBROADCASTSS m0, xmm0
+    VBROADCASTSS m1, xmm1



This and every other xmm# case should instead be xm#, to ensure the 
swapping is taken into account.

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