diff options
Diffstat (limited to 'vp9/encoder/x86')
| -rw-r--r-- | vp9/encoder/x86/vp9_frame_scale_ssse3.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/vp9/encoder/x86/vp9_frame_scale_ssse3.c b/vp9/encoder/x86/vp9_frame_scale_ssse3.c index 81e5b4229..7685e7bc3 100644 --- a/vp9/encoder/x86/vp9_frame_scale_ssse3.c +++ b/vp9/encoder/x86/vp9_frame_scale_ssse3.c @@ -438,6 +438,202 @@ static void scale_plane_4_to_1_general(const uint8_t *src, const int src_stride, } while (x); } +typedef void (*shuffle_filter_funcs)(const int16_t *const filter, + __m128i *const f); + +typedef __m128i (*convolve8_funcs)(const __m128i *const s, + const __m128i *const f); + +static void scale_plane_4_to_3_general(const uint8_t *src, const int src_stride, + uint8_t *dst, const int dst_stride, + const int w, const int h, + const InterpKernel *const coef, + const int phase_scaler, + uint8_t *const temp_buffer) { + static const int step_q4 = 16 * 4 / 3; + const int width_hor = (w + 5) - ((w + 5) % 6); + const int stride_hor = 2 * width_hor + 4; // store 4 extra pixels + const int width_ver = (w + 7) & ~7; + // We need (SUBPEL_TAPS - 1) extra rows: (SUBPEL_TAPS / 2 - 1) extra rows + // above and (SUBPEL_TAPS / 2) extra rows below. + const int height_hor = (4 * h / 3 + SUBPEL_TAPS - 1 + 7) & ~7; + const int height_ver = (h + 5) - ((h + 5) % 6); + int x, y = height_hor; + uint8_t *t = temp_buffer; + __m128i s[12], d[6], dd[4]; + __m128i f0[4], f1[5], f2[5]; + // The offset of the first row is always less than 1 pixel. + const int offset1_q4 = phase_scaler + 1 * step_q4; + const int offset2_q4 = phase_scaler + 2 * step_q4; + // offset_idxx indicates the pixel offset is even (0) or odd (1). + // It's used to choose the src offset and filter coefficient offset. + const int offset_idx1 = (offset1_q4 >> 4) & 1; + const int offset_idx2 = (offset2_q4 >> 4) & 1; + static const shuffle_filter_funcs shuffle_filter_funcs[2] = { + shuffle_filter_ssse3, shuffle_filter_odd_ssse3 + }; + static const convolve8_funcs convolve8_funcs[2] = { + convolve8_8_even_offset_ssse3, convolve8_8_odd_offset_ssse3 + }; + + assert(w && h); + + shuffle_filter_ssse3(coef[(phase_scaler + 0 * step_q4) & SUBPEL_MASK], f0); + shuffle_filter_funcs[offset_idx1](coef[offset1_q4 & SUBPEL_MASK], f1); + shuffle_filter_funcs[offset_idx2](coef[offset2_q4 & SUBPEL_MASK], f2); + + // Sub 64 to avoid overflow. + // Coef 128 would be treated as -128 in PMADDUBSW. Sub 64 here. + // Coef 128 is in either fx[1] or fx[2] depending on the phase idx. + // When filter phase idx is 1, the two biggest coefficients are shuffled + // together, and the sum of them are always no less than 128. Sub 64 here. + // After the subtraction, when the sum of all positive coefficients are no + // larger than 128, and the sum of all negative coefficients are no + // less than -128, there will be no overflow in the convolve8 functions. + f0[1] = _mm_sub_epi8(f0[1], _mm_set1_epi8(64)); + f1[1 + offset_idx1] = _mm_sub_epi8(f1[1 + offset_idx1], _mm_set1_epi8(64)); + f2[1 + offset_idx2] = _mm_sub_epi8(f2[1 + offset_idx2], _mm_set1_epi8(64)); + + src -= (SUBPEL_TAPS / 2 - 1) * src_stride + SUBPEL_TAPS / 2 - 1; + + // horizontal 6x8 + do { + load_8bit_8x8(src, 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 + transpose_16bit_4x8(s, s); + x = width_hor; + + do { + src += 8; + load_8bit_8x8(src, src_stride, &s[4]); + // 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 + // OC 0D 1C 1D 2C 2D 3C 3D 4C 4D 5C 5D 6C 6D 7C 7D + // 0E 0F 1E 1F 2E 2F 3E 3F 4E 4F 5E 5F 6E 6F 7E 7F + transpose_16bit_4x8(&s[4], &s[4]); + + // 00 10 20 30 40 50 60 70 + // 01 11 21 31 41 51 61 71 + // 02 12 22 32 42 52 62 72 + // 03 13 23 33 43 53 63 73 + // 04 14 24 34 44 54 64 74 + // 05 15 25 35 45 55 65 75 + d[0] = convolve8_8_even_offset_ssse3(&s[0], f0); + d[1] = convolve8_funcs[offset_idx1](&s[offset1_q4 >> 5], f1); + d[2] = convolve8_funcs[offset_idx2](&s[offset2_q4 >> 5], f2); + d[3] = convolve8_8_even_offset_ssse3(&s[2], f0); + d[4] = convolve8_funcs[offset_idx1](&s[2 + (offset1_q4 >> 5)], f1); + d[5] = convolve8_funcs[offset_idx2](&s[2 + (offset2_q4 >> 5)], f2); + + // 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 + // 04 14 24 34 44 54 64 74 xx xx xx xx xx xx xx xx + // 05 15 25 35 45 55 65 75 xx xx xx xx xx xx xx xx + dd[0] = _mm_packus_epi16(d[0], d[2]); + dd[1] = _mm_packus_epi16(d[1], d[3]); + dd[2] = _mm_packus_epi16(d[4], d[4]); + dd[3] = _mm_packus_epi16(d[5], d[5]); + + // 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 + // 04 14 05 15 24 34 25 35 44 54 45 55 64 74 65 75 + d[0] = _mm_unpacklo_epi16(dd[0], dd[1]); + d[1] = _mm_unpackhi_epi16(dd[0], dd[1]); + d[2] = _mm_unpacklo_epi16(dd[2], dd[3]); + + // 00 10 01 11 02 12 03 13 20 30 21 31 22 32 23 33 + // 40 50 41 51 42 52 43 53 60 70 61 71 62 72 63 73 + // 04 14 05 15 xx xx xx xx 24 34 25 35 xx xx xx xx + // 44 54 45 55 xx xx xx xx 64 74 65 75 xx xx xx xx + dd[0] = _mm_unpacklo_epi32(d[0], d[1]); + dd[1] = _mm_unpackhi_epi32(d[0], d[1]); + dd[2] = _mm_unpacklo_epi32(d[2], d[2]); + dd[3] = _mm_unpackhi_epi32(d[2], d[2]); + + // 00 10 01 11 02 12 03 13 04 14 05 15 xx xx xx xx + // 20 30 21 31 22 32 23 33 24 34 25 35 xx xx xx xx + // 40 50 41 51 42 52 43 53 44 54 45 55 xx xx xx xx + // 60 70 61 71 62 72 63 73 64 74 65 75 xx xx xx xx + d[0] = _mm_unpacklo_epi64(dd[0], dd[2]); + d[1] = _mm_unpackhi_epi64(dd[0], dd[2]); + d[2] = _mm_unpacklo_epi64(dd[1], dd[3]); + d[3] = _mm_unpackhi_epi64(dd[1], dd[3]); + + // store 4 extra pixels + storeu_8bit_16x4(d, t, stride_hor); + + s[0] = s[4]; + s[1] = s[5]; + s[2] = s[6]; + s[3] = s[7]; + + t += 12; + x -= 6; + } while (x); + src += 8 * src_stride - 4 * width_hor / 3; + t += 3 * stride_hor + 4; + y -= 8; + } while (y); + + // vertical 8x6 + 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 + loadu_8bit_16x4(t, stride_hor, s); + y = height_ver; + + do { + // 80 90 81 91 82 92 83 93 84 94 85 95 86 96 87 97 + // A0 B0 A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 + // C0 D0 C1 D1 C2 D2 C3 D3 C4 D4 C5 D5 C6 D6 C7 D7 + // E0 F0 E1 F1 E2 F2 E3 F3 E4 F4 E5 F5 E6 F6 E7 F7 + t += 4 * stride_hor; + loadu_8bit_16x4(t, stride_hor, &s[4]); + + d[0] = convolve8_8_even_offset_ssse3(&s[0], f0); + d[1] = convolve8_funcs[offset_idx1](&s[offset1_q4 >> 5], f1); + d[2] = convolve8_funcs[offset_idx2](&s[offset2_q4 >> 5], f2); + d[3] = convolve8_8_even_offset_ssse3(&s[2], f0); + d[4] = convolve8_funcs[offset_idx1](&s[2 + (offset1_q4 >> 5)], f1); + d[5] = convolve8_funcs[offset_idx2](&s[2 + (offset2_q4 >> 5)], f2); + + // 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 + // 40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57 + d[0] = _mm_packus_epi16(d[0], d[1]); + d[2] = _mm_packus_epi16(d[2], d[3]); + d[4] = _mm_packus_epi16(d[4], d[5]); + + _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[2]); + _mm_storeh_epi64((__m128i *)(dst + 3 * dst_stride), d[2]); + _mm_storel_epi64((__m128i *)(dst + 4 * dst_stride), d[4]); + _mm_storeh_epi64((__m128i *)(dst + 5 * dst_stride), d[4]); + + s[0] = s[4]; + s[1] = s[5]; + s[2] = s[6]; + s[3] = s[7]; + + dst += 6 * dst_stride; + y -= 6; + } while (y); + t -= stride_hor * 2 * height_ver / 3; + 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; @@ -652,6 +848,36 @@ void vp9_scale_and_extend_frame_ssse3(const YV12_BUFFER_CONFIG *src, scaled = 0; } } + } else if (4 * dst_w == 3 * src_w && 4 * dst_h == 3 * src_h) { + // 4 to 3 + const int buffer_stride_hor = (dst_w + 5) - ((dst_w + 5) % 6) + 2; + const int buffer_stride_ver = (dst_w + 7) & ~7; + const int buffer_height = (4 * dst_h / 3 + SUBPEL_TAPS - 1 + 7) & ~7; + // When the vertical filter reads more pixels than the horizontal filter + // generated in each row, we need extra padding to avoid heap read overflow. + // For example, the horizontal filter generates 18 pixels but the vertical + // filter reads 24 pixels in a row. The difference is multiplied by 2 since + // two rows are interlaced together in the optimization. + const int extra_padding = (buffer_stride_ver > buffer_stride_hor) + ? 2 * (buffer_stride_ver - buffer_stride_hor) + : 0; + const int buffer_size = buffer_stride_hor * buffer_height + extra_padding; + uint8_t *const temp_buffer = (uint8_t *)malloc(buffer_size); + if (temp_buffer) { + scaled = 1; + scale_plane_4_to_3_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_4_to_3_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_4_to_3_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 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)); |