On Tue, May 17, 2016 at 03:08:13PM +0800, 周晓勇 wrote: > avcodec/mips/h264qpel_mmi: Version 2 of the optimizations for loongson mmi > > 1. no longer use the register names directly and optimized code format > 2. to be compatible with O32, specify type of address variable with > mips_reg and handle the address variable with PTR_ operator > 3. temporarily annotated func put_(avg_)h264_qpel16_hv_lowpass_mmi and > related funcs which couldn't pass fate testing in O32 ABI > 4. use uld and mtc1 to workaround cpu 3A2000 gslwlc1 bug (gslwlc1 > instruction extension bug in O32 ABI) > 5. put_pixels_ an avg_pixels_ functions use hpeldsp optimizations instead
[...]
> @@ -1373,161 +1412,589 @@ static void put_h264_qpel4_hv_lowpass_mmi(uint8_t
> *dst, const uint8_t *src,
> }
> }
>
> -static void put_h264_qpel8_hv_lowpass_mmi(uint8_t *dst, const uint8_t *src,
> - int dstStride, int srcStride)
> -{
> - int16_t _tmp[104];
> - int16_t *tmp = _tmp;
> - int i;
> - src -= 2*srcStride;
> +static inline void put_h264_qpel8or16_hv1_lowpass_mmi(int16_t *tmp,
> + const uint8_t *src, ptrdiff_t tmpStride, ptrdiff_t srcStride, int
> size)
> +{
> + int w = (size + 8) >> 2;
> + double ftmp[11];
> + uint64_t tmp0;
> + uint64_t low32;
> +
> + src -= 2 * srcStride + 2;
[...]
> + src8 += 2L * src8Stride;
> + src16 += 48;
> + dst += 2L * dstStride;
why does this use long types instead of ints while other code uses
ints ?
> + } while (h -= 2);
> +}
> +
> +static void put_h264_qpel16_h_lowpass_l2_mmi(uint8_t *dst, const uint8_t
> *src,
> + const uint8_t *src2, ptrdiff_t dstStride, ptrdiff_t src2Stride)
> +{
> + put_h264_qpel8_h_lowpass_l2_mmi(dst, src, src2, dstStride, src2Stride);
> + put_h264_qpel8_h_lowpass_l2_mmi(dst + 8, src + 8, src2 + 8, dstStride,
> + src2Stride);
> +
> + src += 8 * dstStride;
> + dst += 8 * dstStride;
> + src2 += 8 * src2Stride;
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
I do not agree with what you have to say, but I'll defend to the death your
right to say it. -- Voltaire
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