From 127864deb3d72aa8ec90f161b1a0dc7511bcffd7 Mon Sep 17 00:00:00 2001 From: Linfeng Zhang Date: Tue, 3 Oct 2017 16:09:19 -0700 Subject: Generalize 2:1 vp9_scale_and_extend_frame_ssse3() Change-Id: I882da3a04884d5fabd4cd591c28682cbb2d76aa5 --- vp9/encoder/x86/vp9_frame_scale_ssse3.c | 222 ++++++++++++++++++++++++++++++-- 1 file changed, 214 insertions(+), 8 deletions(-) (limited to 'vp9/encoder/x86') diff --git a/vp9/encoder/x86/vp9_frame_scale_ssse3.c b/vp9/encoder/x86/vp9_frame_scale_ssse3.c index 0d7bd1d05..2435439fe 100644 --- a/vp9/encoder/x86/vp9_frame_scale_ssse3.c +++ b/vp9/encoder/x86/vp9_frame_scale_ssse3.c @@ -15,14 +15,15 @@ #include "./vpx_scale_rtcd.h" #include "vpx_dsp/x86/convolve_ssse3.h" #include "vpx_dsp/x86/mem_sse2.h" +#include "vpx_dsp/x86/transpose_sse2.h" #include "vpx_scale/yv12config.h" static void scale_plane_2_to_1_phase_0(const uint8_t *src, const ptrdiff_t src_stride, uint8_t *dst, const ptrdiff_t dst_stride, const int dst_w, const int dst_h) { - const __m128i mask = _mm_set1_epi16(0x00FF); const int max_width = (dst_w + 15) & ~15; + const __m128i mask = _mm_set1_epi16(0x00FF); int y = dst_h; do { @@ -43,6 +44,174 @@ static void scale_plane_2_to_1_phase_0(const uint8_t *src, } while (--y); } +static INLINE __m128i scale_plane_bilinear_kernel(const __m128i *const s, + const __m128i c0c1) { + const __m128i k_64 = _mm_set1_epi16(1 << 6); + const __m128i t0 = _mm_maddubs_epi16(s[0], c0c1); + const __m128i t1 = _mm_maddubs_epi16(s[1], c0c1); + // round and shift by 7 bit each 16 bit + const __m128i t2 = _mm_adds_epi16(t0, k_64); + const __m128i t3 = _mm_adds_epi16(t1, k_64); + const __m128i t4 = _mm_srai_epi16(t2, 7); + const __m128i t5 = _mm_srai_epi16(t3, 7); + return _mm_packus_epi16(t4, t5); +} + +static void scale_plane_2_to_1_bilinear(const uint8_t *src, + const ptrdiff_t src_stride, + uint8_t *dst, + const ptrdiff_t dst_stride, + const int dst_w, const int dst_h, + const __m128i c0c1) { + const int max_width = (dst_w + 15) & ~15; + int y = dst_h; + + do { + int x = max_width; + do { + __m128i s[2], d[2]; + + // Horizontal + // Even rows + s[0] = _mm_loadu_si128((const __m128i *)(src + 0)); + s[1] = _mm_loadu_si128((const __m128i *)(src + 16)); + d[0] = scale_plane_bilinear_kernel(s, c0c1); + + // odd rows + s[0] = _mm_loadu_si128((const __m128i *)(src + src_stride + 0)); + s[1] = _mm_loadu_si128((const __m128i *)(src + src_stride + 16)); + d[1] = scale_plane_bilinear_kernel(s, c0c1); + + // Vertical + s[0] = _mm_unpacklo_epi8(d[0], d[1]); + s[1] = _mm_unpackhi_epi8(d[0], d[1]); + d[0] = scale_plane_bilinear_kernel(s, c0c1); + + _mm_storeu_si128((__m128i *)dst, d[0]); + src += 32; + dst += 16; + x -= 16; + } while (x); + src += 2 * (src_stride - max_width); + dst += dst_stride - max_width; + } while (--y); +} + +static void scale_plane_2_to_1_general(const uint8_t *src, const int src_stride, + uint8_t *dst, const int dst_stride, + const int w, const int h, + const int16_t *const coef, + uint8_t *const temp_buffer) { + const int width_hor = (w + 3) & ~3; + const int width_ver = (w + 7) & ~7; + const int height_hor = (2 * h + SUBPEL_TAPS - 2 + 7) & ~7; + const int height_ver = (h + 3) & ~3; + int x, y = height_hor; + uint8_t *t = temp_buffer; + __m128i s[11], d[4]; + __m128i f[4]; + + assert(w && h); + + shuffle_filter_ssse3(coef, f); + src -= (SUBPEL_TAPS / 2 - 1) * src_stride + SUBPEL_TAPS / 2 + 1; + + // horizontal 4x8 + do { + load_8bit_8x8(src + 2, src_stride, s); + // 00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71 + // 02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73 + // 04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75 + // 06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77 (overlapped) + transpose_16bit_4x8(s, s); + x = width_hor; + + do { + src += 8; + load_8bit_8x8(src, src_stride, &s[3]); + // 06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77 + // 08 09 18 19 28 29 38 39 48 49 58 59 68 69 78 79 + // 0A 0B 1A 1B 2A 2B 3A 3B 4A 4B 5A 5B 6A 6B 7A 7B + // 0C 0D 1C 1D 2C 2D 3C 3D 4C 4D 5C 5D 6C 6D 7C 7D + transpose_16bit_4x8(&s[3], &s[3]); + + d[0] = convolve8_8_ssse3(&s[0], f); // 00 10 20 30 40 50 60 70 + d[1] = convolve8_8_ssse3(&s[1], f); // 01 11 21 31 41 51 61 71 + d[2] = convolve8_8_ssse3(&s[2], f); // 02 12 22 32 42 52 62 72 + d[3] = convolve8_8_ssse3(&s[3], f); // 03 13 23 33 43 53 63 73 + + // 00 10 20 30 40 50 60 70 02 12 22 32 42 52 62 72 + // 01 11 21 31 41 51 61 71 03 13 23 33 43 53 63 73 + d[0] = _mm_packus_epi16(d[0], d[2]); + d[1] = _mm_packus_epi16(d[1], d[3]); + // 00 10 01 11 20 30 21 31 40 50 41 51 60 70 61 71 + // 02 12 03 13 22 32 23 33 42 52 43 53 62 72 63 73 + d[2] = _mm_unpacklo_epi16(d[0], d[1]); + d[3] = _mm_unpackhi_epi16(d[0], d[1]); + store_8bit_4x4_sse2(d[2], t + 0, 2 * width_hor); + store_8bit_4x4_sse2(d[3], t + 4, 2 * width_hor); + + s[0] = s[4]; + s[1] = s[5]; + s[2] = s[6]; + + t += 8; + x -= 4; + } while (x); + src += 8 * src_stride - 2 * width_hor; + t += 6 * width_hor; + y -= 8; + } while (y); + + // vertical 8x4 + x = width_ver; + t = temp_buffer; + do { + // 00 10 01 11 02 12 03 13 04 14 05 15 06 16 07 17 + // 20 30 21 31 22 32 23 33 24 34 25 35 26 36 27 37 + // 40 50 41 51 42 52 43 53 44 54 45 55 46 56 47 57 + // 60 70 61 71 62 72 63 73 64 74 65 75 66 76 67 77 (overlapped) + loadu_8bit_16x4(t, 2 * width_hor, s); + t += 6 * width_hor; + y = height_ver; + + do { + // 60 70 61 71 62 72 63 73 64 74 65 75 66 76 67 77 + // 80 90 81 91 82 92 83 93 84 94 85 95 86 96 87 77 + // A0 B0 A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 77 + // C0 D0 C1 D1 C2 D2 C3 D3 C4 D4 C5 D5 C6 D6 C7 77 + loadu_8bit_16x4(t, 2 * width_hor, &s[3]); + t += 8 * width_hor; + + d[0] = convolve8_8_ssse3(&s[0], f); + d[1] = convolve8_8_ssse3(&s[1], f); + d[2] = convolve8_8_ssse3(&s[2], f); + d[3] = convolve8_8_ssse3(&s[3], f); + + // 00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17 + // 20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37 + d[0] = _mm_packus_epi16(d[0], d[1]); + d[1] = _mm_packus_epi16(d[2], d[3]); + _mm_storel_epi64((__m128i *)(dst + 0 * dst_stride), d[0]); + _mm_storeh_epi64((__m128i *)(dst + 1 * dst_stride), d[0]); + _mm_storel_epi64((__m128i *)(dst + 2 * dst_stride), d[1]); + _mm_storeh_epi64((__m128i *)(dst + 3 * dst_stride), d[1]); + + s[0] = s[4]; + s[1] = s[5]; + s[2] = s[6]; + + dst += 4 * dst_stride; + y -= 4; + } while (y); + t -= width_hor * (2 * height_ver + 6); + t += 16; + dst -= height_ver * dst_stride; + dst += 8; + x -= 8; + } while (x); +} + static INLINE __m128i scale_1_to_2_phase_0_kernel(const __m128i *const s, const __m128i *const f) { __m128i ss[4], temp; @@ -165,17 +334,54 @@ void vp9_scale_and_extend_frame_ssse3(const YV12_BUFFER_CONFIG *src, const int dst_h = dst->y_crop_height; int scaled = 0; - if (dst_w * 2 == src_w && dst_h * 2 == src_h && phase_scaler == 0) { + // phase_scaler is usually 0 or 8. + assert(phase_scaler >= 0 && phase_scaler < 16); + + if (dst_w * 2 == src_w && dst_h * 2 == src_h) { // 2 to 1 const int dst_uv_w = dst_w / 2; const int dst_uv_h = dst_h / 2; scaled = 1; - scale_plane_2_to_1_phase_0(src->y_buffer, src->y_stride, dst->y_buffer, - dst->y_stride, dst_w, dst_h); - scale_plane_2_to_1_phase_0(src->u_buffer, src->uv_stride, dst->u_buffer, - dst->uv_stride, dst_uv_w, dst_uv_h); - scale_plane_2_to_1_phase_0(src->v_buffer, src->uv_stride, dst->v_buffer, - dst->uv_stride, dst_uv_w, dst_uv_h); + + if (phase_scaler == 0) { + scale_plane_2_to_1_phase_0(src->y_buffer, src->y_stride, dst->y_buffer, + dst->y_stride, dst_w, dst_h); + scale_plane_2_to_1_phase_0(src->u_buffer, src->uv_stride, dst->u_buffer, + dst->uv_stride, dst_uv_w, dst_uv_h); + scale_plane_2_to_1_phase_0(src->v_buffer, src->uv_stride, dst->v_buffer, + dst->uv_stride, dst_uv_w, dst_uv_h); + } else if (filter_type == BILINEAR) { + const int16_t c0 = vp9_filter_kernels[BILINEAR][phase_scaler][3]; + const int16_t c1 = vp9_filter_kernels[BILINEAR][phase_scaler][4]; + const __m128i c0c1 = _mm_set1_epi16(c0 | (c1 << 8)); // c0 and c1 >= 0 + scale_plane_2_to_1_bilinear(src->y_buffer, src->y_stride, dst->y_buffer, + dst->y_stride, dst_w, dst_h, c0c1); + scale_plane_2_to_1_bilinear(src->u_buffer, src->uv_stride, dst->u_buffer, + dst->uv_stride, dst_uv_w, dst_uv_h, c0c1); + scale_plane_2_to_1_bilinear(src->v_buffer, src->uv_stride, dst->v_buffer, + dst->uv_stride, dst_uv_w, dst_uv_h, c0c1); + } else { + const int buffer_stride = (dst_w + 3) & ~3; + const int buffer_height = (2 * dst_h + SUBPEL_TAPS - 2 + 7) & ~7; + uint8_t *const temp_buffer = + (uint8_t *)malloc(buffer_stride * buffer_height); + if (temp_buffer) { + scale_plane_2_to_1_general( + src->y_buffer, src->y_stride, dst->y_buffer, dst->y_stride, dst_w, + dst_h, vp9_filter_kernels[filter_type][phase_scaler], temp_buffer); + scale_plane_2_to_1_general( + src->u_buffer, src->uv_stride, dst->u_buffer, dst->uv_stride, + dst_uv_w, dst_uv_h, vp9_filter_kernels[filter_type][phase_scaler], + temp_buffer); + scale_plane_2_to_1_general( + src->v_buffer, src->uv_stride, dst->v_buffer, dst->uv_stride, + dst_uv_w, dst_uv_h, vp9_filter_kernels[filter_type][phase_scaler], + temp_buffer); + free(temp_buffer); + } else { + scaled = 0; + } + } } else if (dst_w == src_w * 2 && dst_h == src_h * 2 && phase_scaler == 0) { // 1 to 2 uint8_t *const temp_buffer = (uint8_t *)malloc(8 * ((src_w + 7) & ~7)); -- cgit v1.2.3