/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include #include #include "common/intops.h" #include "src/wedge.h" enum WedgeDirectionType { WEDGE_HORIZONTAL = 0, WEDGE_VERTICAL = 1, WEDGE_OBLIQUE27 = 2, WEDGE_OBLIQUE63 = 3, WEDGE_OBLIQUE117 = 4, WEDGE_OBLIQUE153 = 5, N_WEDGE_DIRECTIONS }; typedef struct { uint8_t /* enum WedgeDirectionType */ direction; uint8_t x_offset; uint8_t y_offset; } wedge_code_type; static const wedge_code_type wedge_codebook_16_hgtw[16] = { { WEDGE_OBLIQUE27, 4, 4 }, { WEDGE_OBLIQUE63, 4, 4 }, { WEDGE_OBLIQUE117, 4, 4 }, { WEDGE_OBLIQUE153, 4, 4 }, { WEDGE_HORIZONTAL, 4, 2 }, { WEDGE_HORIZONTAL, 4, 4 }, { WEDGE_HORIZONTAL, 4, 6 }, { WEDGE_VERTICAL, 4, 4 }, { WEDGE_OBLIQUE27, 4, 2 }, { WEDGE_OBLIQUE27, 4, 6 }, { WEDGE_OBLIQUE153, 4, 2 }, { WEDGE_OBLIQUE153, 4, 6 }, { WEDGE_OBLIQUE63, 2, 4 }, { WEDGE_OBLIQUE63, 6, 4 }, { WEDGE_OBLIQUE117, 2, 4 }, { WEDGE_OBLIQUE117, 6, 4 }, }; static const wedge_code_type wedge_codebook_16_hltw[16] = { { WEDGE_OBLIQUE27, 4, 4 }, { WEDGE_OBLIQUE63, 4, 4 }, { WEDGE_OBLIQUE117, 4, 4 }, { WEDGE_OBLIQUE153, 4, 4 }, { WEDGE_VERTICAL, 2, 4 }, { WEDGE_VERTICAL, 4, 4 }, { WEDGE_VERTICAL, 6, 4 }, { WEDGE_HORIZONTAL, 4, 4 }, { WEDGE_OBLIQUE27, 4, 2 }, { WEDGE_OBLIQUE27, 4, 6 }, { WEDGE_OBLIQUE153, 4, 2 }, { WEDGE_OBLIQUE153, 4, 6 }, { WEDGE_OBLIQUE63, 2, 4 }, { WEDGE_OBLIQUE63, 6, 4 }, { WEDGE_OBLIQUE117, 2, 4 }, { WEDGE_OBLIQUE117, 6, 4 }, }; static const wedge_code_type wedge_codebook_16_heqw[16] = { { WEDGE_OBLIQUE27, 4, 4 }, { WEDGE_OBLIQUE63, 4, 4 }, { WEDGE_OBLIQUE117, 4, 4 }, { WEDGE_OBLIQUE153, 4, 4 }, { WEDGE_HORIZONTAL, 4, 2 }, { WEDGE_HORIZONTAL, 4, 6 }, { WEDGE_VERTICAL, 2, 4 }, { WEDGE_VERTICAL, 6, 4 }, { WEDGE_OBLIQUE27, 4, 2 }, { WEDGE_OBLIQUE27, 4, 6 }, { WEDGE_OBLIQUE153, 4, 2 }, { WEDGE_OBLIQUE153, 4, 6 }, { WEDGE_OBLIQUE63, 2, 4 }, { WEDGE_OBLIQUE63, 6, 4 }, { WEDGE_OBLIQUE117, 2, 4 }, { WEDGE_OBLIQUE117, 6, 4 }, }; Dav1dMasks dav1d_masks; static void insert_border(uint8_t *const dst, const uint8_t *const src, const int ctr) { if (ctr > 4) memset(dst, 0, ctr - 4); memcpy(dst + imax(ctr, 4) - 4, src + imax(4 - ctr, 0), imin(64 - ctr, 8)); if (ctr < 64 - 4) memset(dst + ctr + 4, 64, 64 - 4 - ctr); } static void transpose(uint8_t *const dst, const uint8_t *const src) { for (int y = 0, y_off = 0; y < 64; y++, y_off += 64) for (int x = 0, x_off = 0; x < 64; x++, x_off += 64) dst[x_off + y] = src[y_off + x]; } static void hflip(uint8_t *const dst, const uint8_t *const src) { for (int y = 0, y_off = 0; y < 64; y++, y_off += 64) for (int x = 0; x < 64; x++) dst[y_off + 64 - 1 - x] = src[y_off + x]; } static void copy2d(uint8_t *dst, const uint8_t *src, int sign, const int w, const int h, const int x_off, const int y_off) { src += y_off * 64 + x_off; if (sign) { for (int y = 0; y < h; y++) { for (int x = 0; x < w; x++) dst[x] = 64 - src[x]; src += 64; dst += w; } } else { for (int y = 0; y < h; y++) { memcpy(dst, src, w); src += 64; dst += w; } } } #define MASK_OFFSET(x) ((uint16_t)(((uintptr_t)(x) - (uintptr_t)&dav1d_masks) >> 3)) static COLD uint16_t init_chroma(uint8_t *chroma, const uint8_t *luma, const int sign, const int w, const int h, const int ss_ver) { const uint16_t offset = MASK_OFFSET(chroma); for (int y = 0; y < h; y += 1 + ss_ver) { for (int x = 0; x < w; x += 2) { int sum = luma[x] + luma[x + 1] + 1; if (ss_ver) sum += luma[w + x] + luma[w + x + 1] + 1; chroma[x >> 1] = (sum - sign) >> (1 + ss_ver); } luma += w << ss_ver; chroma += w >> 1; } return offset; } static COLD void fill2d_16x2(const int w, const int h, const enum BlockSize bs, const uint8_t (*const master)[64 * 64], const wedge_code_type *const cb, uint8_t *masks_444, uint8_t *masks_422, uint8_t *masks_420, unsigned signs) { const int n_stride_444 = (w * h); const int n_stride_422 = n_stride_444 >> 1; const int n_stride_420 = n_stride_444 >> 2; const int sign_stride_422 = 16 * n_stride_422; const int sign_stride_420 = 16 * n_stride_420; // assign pointer offsets in lookup table for (int n = 0; n < 16; n++) { const int sign = signs & 1; copy2d(masks_444, master[cb[n].direction], sign, w, h, 32 - (w * cb[n].x_offset >> 3), 32 - (h * cb[n].y_offset >> 3)); // not using !sign is intentional here, since 444 does not require // any rounding since no chroma subsampling is applied. dav1d_masks.offsets[0][bs].wedge[0][n] = dav1d_masks.offsets[0][bs].wedge[1][n] = MASK_OFFSET(masks_444); dav1d_masks.offsets[1][bs].wedge[0][n] = init_chroma(&masks_422[ sign * sign_stride_422], masks_444, 0, w, h, 0); dav1d_masks.offsets[1][bs].wedge[1][n] = init_chroma(&masks_422[!sign * sign_stride_422], masks_444, 1, w, h, 0); dav1d_masks.offsets[2][bs].wedge[0][n] = init_chroma(&masks_420[ sign * sign_stride_420], masks_444, 0, w, h, 1); dav1d_masks.offsets[2][bs].wedge[1][n] = init_chroma(&masks_420[!sign * sign_stride_420], masks_444, 1, w, h, 1); signs >>= 1; masks_444 += n_stride_444; masks_422 += n_stride_422; masks_420 += n_stride_420; } } static COLD void build_nondc_ii_masks(uint8_t *const mask_v, const int w, const int h, const int step) { static const uint8_t ii_weights_1d[32] = { 60, 52, 45, 39, 34, 30, 26, 22, 19, 17, 15, 13, 11, 10, 8, 7, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, }; uint8_t *const mask_h = &mask_v[w * h]; uint8_t *const mask_sm = &mask_h[w * h]; for (int y = 0, off = 0; y < h; y++, off += w) { memset(&mask_v[off], ii_weights_1d[y * step], w); for (int x = 0; x < w; x++) { mask_sm[off + x] = ii_weights_1d[imin(x, y) * step]; mask_h[off + x] = ii_weights_1d[x * step]; } } } COLD void dav1d_init_ii_wedge_masks(void) { // This function is guaranteed to be called only once enum WedgeMasterLineType { WEDGE_MASTER_LINE_ODD, WEDGE_MASTER_LINE_EVEN, WEDGE_MASTER_LINE_VERT, N_WEDGE_MASTER_LINES, }; static const uint8_t wedge_master_border[N_WEDGE_MASTER_LINES][8] = { [WEDGE_MASTER_LINE_ODD] = { 1, 2, 6, 18, 37, 53, 60, 63 }, [WEDGE_MASTER_LINE_EVEN] = { 1, 4, 11, 27, 46, 58, 62, 63 }, [WEDGE_MASTER_LINE_VERT] = { 0, 2, 7, 21, 43, 57, 62, 64 }, }; uint8_t master[6][64 * 64]; // create master templates for (int y = 0, off = 0; y < 64; y++, off += 64) insert_border(&master[WEDGE_VERTICAL][off], wedge_master_border[WEDGE_MASTER_LINE_VERT], 32); for (int y = 0, off = 0, ctr = 48; y < 64; y += 2, off += 128, ctr--) { insert_border(&master[WEDGE_OBLIQUE63][off], wedge_master_border[WEDGE_MASTER_LINE_EVEN], ctr); insert_border(&master[WEDGE_OBLIQUE63][off + 64], wedge_master_border[WEDGE_MASTER_LINE_ODD], ctr - 1); } transpose(master[WEDGE_OBLIQUE27], master[WEDGE_OBLIQUE63]); transpose(master[WEDGE_HORIZONTAL], master[WEDGE_VERTICAL]); hflip(master[WEDGE_OBLIQUE117], master[WEDGE_OBLIQUE63]); hflip(master[WEDGE_OBLIQUE153], master[WEDGE_OBLIQUE27]); #define fill(w, h, sz_422, sz_420, hvsw, signs) \ fill2d_16x2(w, h, BS_##w##x##h - BS_32x32, \ master, wedge_codebook_16_##hvsw, \ dav1d_masks.wedge_444_##w##x##h, \ dav1d_masks.wedge_422_##sz_422, \ dav1d_masks.wedge_420_##sz_420, signs) fill(32, 32, 16x32, 16x16, heqw, 0x7bfb); fill(32, 16, 16x16, 16x8, hltw, 0x7beb); fill(32, 8, 16x8, 16x4, hltw, 0x6beb); fill(16, 32, 8x32, 8x16, hgtw, 0x7beb); fill(16, 16, 8x16, 8x8, heqw, 0x7bfb); fill(16, 8, 8x8, 8x4, hltw, 0x7beb); fill( 8, 32, 4x32, 4x16, hgtw, 0x7aeb); fill( 8, 16, 4x16, 4x8, hgtw, 0x7beb); fill( 8, 8, 4x8, 4x4, heqw, 0x7bfb); #undef fill memset(dav1d_masks.ii_dc, 32, 32 * 32); for (int c = 0; c < 3; c++) { dav1d_masks.offsets[c][BS_32x32-BS_32x32].ii[II_DC_PRED] = dav1d_masks.offsets[c][BS_32x16-BS_32x32].ii[II_DC_PRED] = dav1d_masks.offsets[c][BS_16x32-BS_32x32].ii[II_DC_PRED] = dav1d_masks.offsets[c][BS_16x16-BS_32x32].ii[II_DC_PRED] = dav1d_masks.offsets[c][BS_16x8 -BS_32x32].ii[II_DC_PRED] = dav1d_masks.offsets[c][BS_8x16 -BS_32x32].ii[II_DC_PRED] = dav1d_masks.offsets[c][BS_8x8 -BS_32x32].ii[II_DC_PRED] = MASK_OFFSET(dav1d_masks.ii_dc); } #define BUILD_NONDC_II_MASKS(w, h, step) \ build_nondc_ii_masks(dav1d_masks.ii_nondc_##w##x##h, w, h, step) #define ASSIGN_NONDC_II_OFFSET(bs, w444, h444, w422, h422, w420, h420) \ dav1d_masks.offsets[0][bs-BS_32x32].ii[p + 1] = \ MASK_OFFSET(&dav1d_masks.ii_nondc_##w444##x##h444[p*w444*h444]); \ dav1d_masks.offsets[1][bs-BS_32x32].ii[p + 1] = \ MASK_OFFSET(&dav1d_masks.ii_nondc_##w422##x##h422[p*w422*h422]); \ dav1d_masks.offsets[2][bs-BS_32x32].ii[p + 1] = \ MASK_OFFSET(&dav1d_masks.ii_nondc_##w420##x##h420[p*w420*h420]) BUILD_NONDC_II_MASKS(32, 32, 1); BUILD_NONDC_II_MASKS(16, 32, 1); BUILD_NONDC_II_MASKS(16, 16, 2); BUILD_NONDC_II_MASKS( 8, 32, 1); BUILD_NONDC_II_MASKS( 8, 16, 2); BUILD_NONDC_II_MASKS( 8, 8, 4); BUILD_NONDC_II_MASKS( 4, 16, 2); BUILD_NONDC_II_MASKS( 4, 8, 4); BUILD_NONDC_II_MASKS( 4, 4, 8); for (int p = 0; p < 3; p++) { ASSIGN_NONDC_II_OFFSET(BS_32x32, 32, 32, 16, 32, 16, 16); ASSIGN_NONDC_II_OFFSET(BS_32x16, 32, 32, 16, 16, 16, 16); ASSIGN_NONDC_II_OFFSET(BS_16x32, 16, 32, 8, 32, 8, 16); ASSIGN_NONDC_II_OFFSET(BS_16x16, 16, 16, 8, 16, 8, 8); ASSIGN_NONDC_II_OFFSET(BS_16x8, 16, 16, 8, 8, 8, 8); ASSIGN_NONDC_II_OFFSET(BS_8x16, 8, 16, 4, 16, 4, 8); ASSIGN_NONDC_II_OFFSET(BS_8x8, 8, 8, 4, 8, 4, 4); } }