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8 commits

Author SHA1 Message Date
Linjie Fu
8b8492452d lavc/x86/hevc_add_res: Fix coeff overflow in ADD_RES_SSE_16_32_8 
Fix overflow for coeff -32768 in function ADD_RES_SSE_16_32_8 with no
performance drop.(SSE2/AVX/AVX2)

./checkasm --test=hevc_add_res --bench

Mainline:
  - hevc_add_res.add_residual [OK]
    hevc_add_res_32x32_8_sse2: 127.5
    hevc_add_res_32x32_8_avx: 127.0
    hevc_add_res_32x32_8_avx2: 86.5

Add overflow test case:
  - hevc_add_res.add_residual [FAILED]

After:
  - hevc_add_res.add_residual [OK]
    hevc_add_res_32x32_8_sse2: 126.8
    hevc_add_res_32x32_8_avx: 128.3
    hevc_add_res_32x32_8_avx2: 86.8

Signed-off-by: Xu Guangxin <guangxin.xu@intel.com>
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2020-03-27 10:57:40 +01:00
Linjie Fu
e9abef437f lavc/x86/hevc_add_res: Fix overflow in ADD_RES_SSE_8_8 
Fix overflow for coeff -32768 in function ADD_RES_SSE_8_8 with
no performance drop.

./checkasm --test=hevc_add_res --bench

Mainline:
  - hevc_add_res.add_residual [OK]
    hevc_add_res_8x8_8_sse2: 15.5

Add overflow test case:
  - hevc_add_res.add_residual [FAILED]

After:
  - hevc_add_res.add_residual [OK]
    hevc_add_res_8x8_8_sse2: 15.5

Signed-off-by: Xu Guangxin <guangxin.xu@intel.com>
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2020-03-27 10:57:40 +01:00
Linjie Fu
0da14ed09e lavc/x86/hevc_add_res: Fix overflow in ADD_RES_MMX_4_8 
Fix overflow for coeff -32768 in function ADD_RES_MMX_4_8 with no
performance drop.

./checkasm --test=hevc_add_res --bench

Mainline:
  - hevc_add_res.add_residual [OK]
    hevc_add_res_4x4_8_mmxext: 15.5

Add overflow test case:
  - hevc_add_res.add_residual [FAILED]

After:
  - hevc_add_res.add_residual [OK]
    hevc_add_res_4x4_8_mmxext: 15.0

Signed-off-by: Xu Guangxin <guangxin.xu@intel.com>
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2020-03-27 10:57:40 +01:00
James Almer
6171f178e7 x86/hevc_add_res: merge last remaining changes from 3d65359832 
See https://lists.libav.org/pipermail/libav-devel/2016-October/079829.html
 2017-03-31 20:49:45 -03:00
James Almer
ac42f08099 x86/hevc_add_res: merge missing changes from 3d65359832 
Unrolling the loops triplicates the size of the assembled output
while not generating any gain in performance.
 2017-03-24 11:24:18 -03:00
Clément Bœsch
3d65359832 Merge commit '6d5636ad9a' 
* commit '6d5636ad9a':
  hevc: x86: Add add_residual() SIMD optimizations

See a6af4bf64d

This merge is only cosmetics (renames, space shuffling, etc).

The functionnal changes in the ASM are *not* merged:
- unrolling with %rep is kept
- ADD_RES_MMX_4_8 is left untouched: this needs investigation

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-24 12:33:25 +01:00
Clément Bœsch
40ac226014 lavc/x86/hevc: rename hevc_res_add to hevc_add_res 
This will simplify incoming merge.
 2017-03-24 11:45:23 +01:00
Pierre Edouard Lepere
6d5636ad9a hevc: x86: Add add_residual() SIMD optimizations 
Initially written by Pierre Edouard Lepere <Pierre-Edouard.Lepere@insa-rennes.fr>,
extended by James Almer <jamrial@gmail.com>.

Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
 2016-10-22 17:33:35 +02:00