3rdparty/ext_heif/0001-cdef-Disable-MSVC-optimizations-for-filter_block.patch

0001 From ad8c7acc1ab3cf784a19a808dc86627c2ef94cfc Mon Sep 17 00:00:00 2001
0002 From: "L. E. Segovia" <amy@amyspark.me>
0003 Date: Sat, 22 Apr 2023 22:47:03 -0300
0004 Subject: [PATCH] cdef: Disable MSVC optimizations for filter_block
0005
0006 This brings build time to 1m44s in my Ryzen 7 2700x, from >15m per file.
0007
0008 BUG: aomedia:3395
0009 Change-Id: Ie53dc51dfe1f8823fc36ee8656b2d6038c7c98ab
0010 (cherry picked from commit b07a503eeaac1b1567ba9509b0c15c84f1ee8463)
0011 ---
0012  av1/common/cdef_block_simd.h | 10 ++++++++++
0013  1 file changed, 10 insertions(+)
0014
0015 diff --git a/av1/common/cdef_block_simd.h b/av1/common/cdef_block_simd.h
0016 index df6787177..c736c9009 100644
0017 --- a/av1/common/cdef_block_simd.h
0018 +++ b/av1/common/cdef_block_simd.h
0019 @@ -270,6 +270,12 @@ SIMD_INLINE v256 get_max_secondary(const int is_lowbd, v256 *tap, v256 max,
0020    return max;
0021  }
0022
0023 +// MSVC takes far too much time optimizing these.
0024 +// https://bugs.chromium.org/p/aomedia/issues/detail?id=3395
0025 +#if defined(_MSC_VER) && !defined(__clang__)
0026 +#pragma optimize("", off)
0027 +#endif
0028 +
0029  CDEF_INLINE void filter_block_4x4(const int is_lowbd, void *dest, int dstride,
0030                                    const uint16_t *in, int pri_strength,
0031                                    int sec_strength, int dir, int pri_damping,
0032 @@ -617,6 +623,10 @@ CDEF_INLINE void filter_block_8x8(const int is_lowbd, void *dest, int dstride,
0033    }
0034  }
0035
0036 +#if defined(_MSC_VER) && !defined(__clang__)
0037 +#pragma optimize("", on)
0038 +#endif
0039 +
0040  SIMD_INLINE void copy_block_4xh(const int is_lowbd, void *dest, int dstride,
0041                                  const uint16_t *in, int height) {
0042    uint8_t *dst8 = (uint8_t *)dest;
0043 --
0044 2.40.1.windows.1
0045