diff --git a/libswscale/utils.c b/libswscale/utils.c index d4a72d3ce1..7158384f0b 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -282,7 +282,7 @@ void ff_shuffle_filter_coefficients(SwsContext *c, int *filterPos, int filterSiz #if ARCH_X86_64 int i, j, k, l; int cpu_flags = av_get_cpu_flags(); - if (EXTERNAL_AVX2_FAST(cpu_flags)){ + if (EXTERNAL_AVX2_FAST(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_SLOW_GATHER)) { if ((c->srcBpc == 8) && (c->dstBpc <= 14)){ if (dstW % 16 == 0){ if (filter != NULL){ diff --git a/libswscale/x86/swscale.c b/libswscale/x86/swscale.c index c49a05c37b..ffc7691c12 100644 --- a/libswscale/x86/swscale.c +++ b/libswscale/x86/swscale.c @@ -578,7 +578,7 @@ switch(c->dstBpc){ \ break; \ } - if (EXTERNAL_AVX2_FAST(cpu_flags)) { + if (EXTERNAL_AVX2_FAST(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_SLOW_GATHER)) { if ((c->srcBpc == 8) && (c->dstBpc <= 14)) { if (c->chrDstW % 16 == 0) ASSIGN_AVX2_SCALE_FUNC(c->hcScale, c->hChrFilterSize); diff --git a/tests/checkasm/sw_scale.c b/tests/checkasm/sw_scale.c index f4912e6c2c..3c0a083b42 100644 --- a/tests/checkasm/sw_scale.c +++ b/tests/checkasm/sw_scale.c @@ -217,7 +217,7 @@ static void check_hscale(void) } ff_sws_init_scale(ctx); memcpy(filterAvx2, filter, sizeof(uint16_t) * (SRC_PIXELS * MAX_FILTER_WIDTH + MAX_FILTER_WIDTH)); - if (cpu_flags & AV_CPU_FLAG_AVX2) + if ((cpu_flags & AV_CPU_FLAG_AVX2) && !(cpu_flags & AV_CPU_FLAG_SLOW_GATHER)) ff_shuffle_filter_coefficients(ctx, filterPosAvx, width, filterAvx2, SRC_PIXELS); if (check_func(ctx->hcScale, "hscale_%d_to_%d_width%d", ctx->srcBpc, ctx->dstBpc + 1, width)) {