[FFmpeg-devel] [PATCH 2/2] x86/mlpdec: add ff_mlp_rematrix_channel_{sse4, avx2}

[James Almer]

On 30/09/14 3:50 PM, James Almer wrote:
>  av_cold void ff_mlpdsp_init_x86(MLPDSPContext *c)
>  {
> -#if HAVE_7REGS && HAVE_INLINE_ASM && HAVE_INLINE_ASM_NONLOCAL_LABELS
>      int cpu_flags = av_get_cpu_flags();
> +#if HAVE_7REGS && HAVE_INLINE_ASM && HAVE_INLINE_ASM_NONLOCAL_LABELS
>      if (INLINE_MMX(cpu_flags))
>          c->mlp_filter_channel = mlp_filter_channel_x86;
>  #endif
> +    if (ARCH_X86_64 && EXTERNAL_SSE4(cpu_flags))
> +        c->mlp_rematrix_channel = ff_mlp_rematrix_channel_sse4;
> +    if (ARCH_X86_64 && EXTERNAL_AVX2(cpu_flags) && cpu_flags & AV_CPU_FLAG_BMI2)
> +        c->mlp_rematrix_channel = ff_mlp_rematrix_channel_avx2_bmi2;
>  }

I didn't write an x86_32 version because seven gprs for a function like this would 
need more work (what with eleven parameters, accum being 64 bits, etc).

I may give it a go later if i feel in the mood, but if someone else wants to do it 
instead then that'd be great.