diff options
author | mtklein <mtklein@chromium.org> | 2016-03-23 06:29:12 -0700 |
---|---|---|
committer | Commit bot <commit-bot@chromium.org> | 2016-03-23 06:29:12 -0700 |
commit | b4a7dc99b1a01cdd5c0cd5913b630436ca696210 (patch) | |
tree | e1286d2e09c61b80d7d415b79b46901a77a32dde /src/opts/SkBlitRow_opts_SSE2.cpp | |
parent | cc77c12293d1685f5e83d768b30ca9157af1576d (diff) |
Port S32A_opaque blit row to SkOpts.
This should be a pixel-for-pixel (i.e. bug-for-bug) port.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1820313002
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
Review URL: https://codereview.chromium.org/1820313002
Diffstat (limited to 'src/opts/SkBlitRow_opts_SSE2.cpp')
-rw-r--r-- | src/opts/SkBlitRow_opts_SSE2.cpp | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/src/opts/SkBlitRow_opts_SSE2.cpp b/src/opts/SkBlitRow_opts_SSE2.cpp index 1929918334..a6fbc25958 100644 --- a/src/opts/SkBlitRow_opts_SSE2.cpp +++ b/src/opts/SkBlitRow_opts_SSE2.cpp @@ -67,61 +67,6 @@ void S32_Blend_BlitRow32_SSE2(SkPMColor* SK_RESTRICT dst, } } -void S32A_Opaque_BlitRow32_SSE2(SkPMColor* SK_RESTRICT dst, - const SkPMColor* SK_RESTRICT src, - int count, U8CPU alpha) { - sk_msan_assert_initialized(src, src+count); - - SkASSERT(alpha == 255); - if (count <= 0) { - return; - } - - int count16 = count / 16; - __m128i* dst4 = (__m128i*)dst; - const __m128i* src4 = (const __m128i*)src; - - for (int i = 0; i < count16 * 4; i += 4) { - // Load 16 source pixels. - __m128i s0 = _mm_loadu_si128(src4+i+0), - s1 = _mm_loadu_si128(src4+i+1), - s2 = _mm_loadu_si128(src4+i+2), - s3 = _mm_loadu_si128(src4+i+3); - - const __m128i alphaMask = _mm_set1_epi32(0xFF << SK_A32_SHIFT); - const __m128i ORed = _mm_or_si128(s3, _mm_or_si128(s2, _mm_or_si128(s1, s0))); - __m128i cmp = _mm_cmpeq_epi8(_mm_and_si128(ORed, alphaMask), _mm_setzero_si128()); - if (0xffff == _mm_movemask_epi8(cmp)) { - // All 16 source pixels are fully transparent. There's nothing to do! - continue; - } - const __m128i ANDed = _mm_and_si128(s3, _mm_and_si128(s2, _mm_and_si128(s1, s0))); - cmp = _mm_cmpeq_epi8(_mm_and_si128(ANDed, alphaMask), alphaMask); - if (0xffff == _mm_movemask_epi8(cmp)) { - // All 16 source pixels are fully opaque. There's no need to read dst or blend it. - _mm_storeu_si128(dst4+i+0, s0); - _mm_storeu_si128(dst4+i+1, s1); - _mm_storeu_si128(dst4+i+2, s2); - _mm_storeu_si128(dst4+i+3, s3); - continue; - } - // The general slow case: do the blend for all 16 pixels. - _mm_storeu_si128(dst4+i+0, SkPMSrcOver_SSE2(s0, _mm_loadu_si128(dst4+i+0))); - _mm_storeu_si128(dst4+i+1, SkPMSrcOver_SSE2(s1, _mm_loadu_si128(dst4+i+1))); - _mm_storeu_si128(dst4+i+2, SkPMSrcOver_SSE2(s2, _mm_loadu_si128(dst4+i+2))); - _mm_storeu_si128(dst4+i+3, SkPMSrcOver_SSE2(s3, _mm_loadu_si128(dst4+i+3))); - } - - // Wrap up the last <= 15 pixels. - SkASSERT(count - (count16*16) <= 15); - for (int i = count16*16; i < count; i++) { - // This check is not really necessarily, but it prevents pointless autovectorization. - if (src[i] & 0xFF000000) { - dst[i] = SkPMSrcOver(src[i], dst[i]); - } - } -} - void S32A_Blend_BlitRow32_SSE2(SkPMColor* SK_RESTRICT dst, const SkPMColor* SK_RESTRICT src, int count, U8CPU alpha) { |