From 116fb275a8b0ca268dc7a1bab5b3abb116507bc8 Mon Sep 17 00:00:00 2001 From: Ilya Lavrenov Date: Mon, 12 Jan 2015 10:59:29 +0300 Subject: [PATCH] convertTo from 8s --- modules/core/src/convert.cpp | 234 +++++++++++++++++++++++++++++++++++ 1 file changed, 234 insertions(+) diff --git a/modules/core/src/convert.cpp b/modules/core/src/convert.cpp index a92ff47e1..5dae935cc 100644 --- a/modules/core/src/convert.cpp +++ b/modules/core/src/convert.cpp @@ -1571,6 +1571,8 @@ struct cvtScale_SIMD #if CV_SSE2 +// from uchar + template <> struct cvtScale_SIMD { @@ -1801,6 +1803,238 @@ struct cvtScale_SIMD } }; +// from schar + +template <> +struct cvtScale_SIMD +{ + int operator () (const schar * src, uchar * dst, int width, float scale, float shift) const + { + int x = 0; + + if (!USE_SSE2) + return x; + + __m128i v_zero = _mm_setzero_si128(); + __m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift); + + for ( ; x <= width - 8; x += 8) + { + __m128i v_src = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, _mm_loadl_epi64((__m128i const *)(src + x))), 8); + __m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16)); + __m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16)); + __m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + __m128i v_dst = _mm_packs_epi32(_mm_cvtps_epi32(v_dst_0), + _mm_cvtps_epi32(v_dst_1)); + _mm_storel_epi64((__m128i *)(dst + x), _mm_packus_epi16(v_dst, v_zero)); + } + + return x; + } +}; + +template <> +struct cvtScale_SIMD +{ + int operator () (const schar * src, schar * dst, int width, float scale, float shift) const + { + int x = 0; + + if (!USE_SSE2) + return x; + + __m128i v_zero = _mm_setzero_si128(); + __m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift); + + for ( ; x <= width - 8; x += 8) + { + __m128i v_src = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, _mm_loadl_epi64((__m128i const *)(src + x))), 8); + __m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16)); + __m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16)); + __m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + __m128i v_dst = _mm_packs_epi32(_mm_cvtps_epi32(v_dst_0), + _mm_cvtps_epi32(v_dst_1)); + _mm_storel_epi64((__m128i *)(dst + x), _mm_packs_epi16(v_dst, v_zero)); + } + + return x; + } +}; + +#if CV_SSE4_1 + +template <> +struct cvtScale_SIMD +{ + cvtScale_SIMD() + { + haveSSE = checkHardwareSupport(CV_CPU_SSE4_1); + } + + int operator () (const schar * src, ushort * dst, int width, float scale, float shift) const + { + int x = 0; + + if (!haveSSE) + return x; + + __m128i v_zero = _mm_setzero_si128(); + __m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift); + + for ( ; x <= width - 8; x += 8) + { + __m128i v_src = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, _mm_loadl_epi64((__m128i const *)(src + x))), 8); + __m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16)); + __m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16)); + __m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + __m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_dst_0), + _mm_cvtps_epi32(v_dst_1)); + _mm_storeu_si128((__m128i *)(dst + x), v_dst); + } + + return x; + } + + bool haveSSE; +}; + +#endif + +template <> +struct cvtScale_SIMD +{ + int operator () (const schar * src, short * dst, int width, float scale, float shift) const + { + int x = 0; + + if (!USE_SSE2) + return x; + + __m128i v_zero = _mm_setzero_si128(); + __m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift); + + for ( ; x <= width - 8; x += 8) + { + __m128i v_src = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, _mm_loadl_epi64((__m128i const *)(src + x))), 8); + __m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16)); + __m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16)); + __m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + __m128i v_dst = _mm_packs_epi32(_mm_cvtps_epi32(v_dst_0), + _mm_cvtps_epi32(v_dst_1)); + _mm_storeu_si128((__m128i *)(dst + x), v_dst); + } + + return x; + } +}; + +template <> +struct cvtScale_SIMD +{ + int operator () (const schar * src, int * dst, int width, float scale, float shift) const + { + int x = 0; + + if (!USE_SSE2) + return x; + + __m128i v_zero = _mm_setzero_si128(); + __m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift); + + for ( ; x <= width - 8; x += 8) + { + __m128i v_src = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, _mm_loadl_epi64((__m128i const *)(src + x))), 8); + __m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16)); + __m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16)); + __m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + _mm_storeu_si128((__m128i *)(dst + x), _mm_cvtps_epi32(v_dst_0)); + _mm_storeu_si128((__m128i *)(dst + x + 4), _mm_cvtps_epi32(v_dst_1)); + } + + return x; + } +}; + +template <> +struct cvtScale_SIMD +{ + int operator () (const schar * src, float * dst, int width, float scale, float shift) const + { + int x = 0; + + if (!USE_SSE2) + return x; + + __m128i v_zero = _mm_setzero_si128(); + __m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift); + + for ( ; x <= width - 8; x += 8) + { + __m128i v_src = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, _mm_loadl_epi64((__m128i const *)(src + x))), 8); + __m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16)); + __m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16)); + __m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + _mm_storeu_ps(dst + x, v_dst_0); + _mm_storeu_ps(dst + x + 4, v_dst_1); + } + + return x; + } +}; + +template <> +struct cvtScale_SIMD +{ + int operator () (const schar * src, double * dst, int width, float scale, float shift) const + { + int x = 0; + + if (!USE_SSE2) + return x; + + __m128i v_zero = _mm_setzero_si128(); + __m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift); + + for ( ; x <= width - 8; x += 8) + { + __m128i v_src = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, _mm_loadl_epi64((__m128i const *)(src + x))), 8); + __m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16)); + __m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16)); + __m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift); + + _mm_storeu_pd(dst + x, _mm_cvtps_pd(v_dst_0)); + _mm_storeu_pd(dst + x + 4, _mm_cvtps_pd(_mm_castsi128_ps( + _mm_srli_si128(_mm_castps_si128(v_dst_0), 16)))); + + _mm_storeu_pd(dst + x + 8, _mm_cvtps_pd(v_dst_1)); + _mm_storeu_pd(dst + x + 12, _mm_cvtps_pd(_mm_castsi128_ps( + _mm_srli_si128(_mm_castps_si128(v_dst_1), 16)))); + } + + return x; + } +}; + #elif CV_NEON // from uchar