ref: c743f8cdcf56ab8ca5ca90149b26a3c86e5b94b6
dir: /src/wedge.c/
/* * 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 <stdint.h> #include <string.h> #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 { enum WedgeDirectionType direction; int x_offset; int 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 }, }; static uint8_t wedge_masks_444_32x32[2][16][32 * 32]; static uint8_t wedge_masks_444_32x16[2][16][32 * 16]; static uint8_t wedge_masks_444_32x8[2][16][32 * 8]; static uint8_t wedge_masks_444_16x32[2][16][16 * 32]; static uint8_t wedge_masks_444_16x16[2][16][16 * 16]; static uint8_t wedge_masks_444_16x8[2][16][16 * 8]; static uint8_t wedge_masks_444_8x32[2][16][8 * 32]; static uint8_t wedge_masks_444_8x16[2][16][8 * 16]; static uint8_t wedge_masks_444_8x8[2][16][8 * 8]; static uint8_t wedge_masks_422_16x32[2][16][16 * 32]; static uint8_t wedge_masks_422_16x16[2][16][16 * 16]; static uint8_t wedge_masks_422_16x8[2][16][16 * 8]; static uint8_t wedge_masks_422_8x32[2][16][8 * 32]; static uint8_t wedge_masks_422_8x16[2][16][8 * 16]; static uint8_t wedge_masks_422_8x8[2][16][8 * 8]; static uint8_t wedge_masks_422_4x32[2][16][4 * 32]; static uint8_t wedge_masks_422_4x16[2][16][4 * 16]; static uint8_t wedge_masks_422_4x8[2][16][4 * 8]; static uint8_t wedge_masks_420_16x16[2][16][16 * 16]; static uint8_t wedge_masks_420_16x8[2][16][16 * 8]; static uint8_t wedge_masks_420_16x4[2][16][16 * 4]; static uint8_t wedge_masks_420_8x16[2][16][8 * 16]; static uint8_t wedge_masks_420_8x8[2][16][8 * 8]; static uint8_t wedge_masks_420_8x4[2][16][8 * 4]; static uint8_t wedge_masks_420_4x16[2][16][4 * 16]; static uint8_t wedge_masks_420_4x8[2][16][4 * 8]; static uint8_t wedge_masks_420_4x4[2][16][4 * 4]; const uint8_t *wedge_masks[N_BS_SIZES][3][2][16]; static void insert_border(uint8_t *const dst, const uint8_t *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 invert(uint8_t *const dst, const uint8_t *const src, const int w, const int h) { for (int y = 0, y_off = 0; y < h; y++, y_off += w) for (int x = 0; x < w; x++) dst[y_off + x] = 64 - src[y_off + x]; } static void copy2d(uint8_t *dst, const uint8_t *src, const int w, const int h, const int x_off, const int y_off) { src += y_off * 64 + x_off; for (int y = 0; y < h; y++) { memcpy(dst, src, w); src += 64; dst += w; } } static void init_chroma(uint8_t *chroma, const uint8_t *luma, const int sign, const int w, const int h, const int ss_ver) { 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; } } static void fill2d_16x2(uint8_t *dst, 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)[16][w * h], uint8_t (*masks_422)[16][w * h >> 1], uint8_t (*masks_420)[16][w * h >> 2], const unsigned signs) { uint8_t *ptr = dst; for (int n = 0; n < 16; n++) { copy2d(ptr, master[cb[n].direction], w, h, 32 - (w * cb[n].x_offset >> 3), 32 - (h * cb[n].y_offset >> 3)); ptr += w * h; } for (int n = 0, off = 0; n < 16; n++, off += w * h) invert(ptr + off, dst + off, w, h); // assign pointers in externally visible array for (int n = 0; n < 16; n++) { const int sign = (signs >> n) & 1; wedge_masks[bs][0][0][n] = masks_444[ sign][n]; wedge_masks[bs][0][1][n] = masks_444[ sign][n]; wedge_masks[bs][1][0][n] = masks_422[ sign][n]; wedge_masks[bs][1][1][n] = masks_422[!sign][n]; wedge_masks[bs][2][0][n] = masks_420[ sign][n]; wedge_masks[bs][2][1][n] = masks_420[!sign][n]; } for (int n = 0; n < 16; n++) { // since the pointers come from inside, we know that // violation of the const is OK here. Any other approach // means we would have to duplicate the sign correction // logic in two places, which isn't very nice, or mark // the table faced externally as non-const, which also sucks init_chroma((uint8_t *) wedge_masks[bs][1][0][n], wedge_masks[bs][0][0][n], 0, w, h, 0); init_chroma((uint8_t *) wedge_masks[bs][1][1][n], wedge_masks[bs][0][0][n], 1, w, h, 0); init_chroma((uint8_t *) wedge_masks[bs][2][0][n], wedge_masks[bs][0][0][n], 0, w, h, 1); init_chroma((uint8_t *) wedge_masks[bs][2][1][n], wedge_masks[bs][0][0][n], 1, w, h, 1); } } void av1_init_wedge_masks(void) { static int done = 0; if (done) return; done = 1; 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((uint8_t *) wedge_masks_444_##w##x##h, w, h, BS_##w##x##h, \ master, wedge_codebook_16_##hvsw, wedge_masks_444_##w##x##h, \ wedge_masks_422_##sz_422, wedge_masks_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 } static uint8_t ii_dc_mask[32 * 32]; static uint8_t ii_nondc_mask_32x32[N_INTER_INTRA_PRED_MODES - 1][32 * 32]; static uint8_t ii_nondc_mask_16x32[N_INTER_INTRA_PRED_MODES - 1][16 * 32]; static uint8_t ii_nondc_mask_16x16[N_INTER_INTRA_PRED_MODES - 1][16 * 16]; static uint8_t ii_nondc_mask_8x32[N_INTER_INTRA_PRED_MODES - 1][8 * 32]; static uint8_t ii_nondc_mask_8x16[N_INTER_INTRA_PRED_MODES - 1][8 * 16]; static uint8_t ii_nondc_mask_8x8[N_INTER_INTRA_PRED_MODES - 1][8 * 8]; static uint8_t ii_nondc_mask_4x16[N_INTER_INTRA_PRED_MODES - 1][4 * 16]; static uint8_t ii_nondc_mask_4x8[N_INTER_INTRA_PRED_MODES - 1][4 * 8]; static uint8_t ii_nondc_mask_4x4[N_INTER_INTRA_PRED_MODES - 1][4 * 4]; #define set1(sz) \ [II_DC_PRED] = ii_dc_mask, \ [II_VERT_PRED] = ii_nondc_mask_##sz[II_VERT_PRED - 1], \ [II_HOR_PRED] = ii_nondc_mask_##sz[II_HOR_PRED - 1], \ [II_SMOOTH_PRED] = ii_nondc_mask_##sz[II_SMOOTH_PRED - 1] #define set(sz_444, sz_422, sz_420) \ { { set1(sz_444) }, { set1(sz_422) }, { set1(sz_420) } } const uint8_t *const ii_masks[N_BS_SIZES][3][N_INTER_INTRA_PRED_MODES] = { [BS_8x8] = set( 8x8, 4x8, 4x4), [BS_8x16] = set( 8x16, 4x16, 4x8), [BS_16x8] = set(16x16, 8x8, 8x8), [BS_16x16] = set(16x16, 8x16, 8x8), [BS_16x32] = set(16x32, 8x32, 8x16), [BS_32x16] = set(32x32, 16x16, 16x16), [BS_32x32] = set(32x32, 16x32, 16x16), }; #undef set #undef set1 static void build_nondc_ii_masks(uint8_t *const mask_v, uint8_t *const mask_h, uint8_t *const mask_sm, const int w, const int h, const int step) { static const uint8_t ii_weights_1d[] = { 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, }; 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]; } } } void av1_init_interintra_masks(void) { static int done = 0; if (done) return; done = 1; memset(ii_dc_mask, 32, 32 * 32); #define set(a) a[II_VERT_PRED - 1], a[II_HOR_PRED - 1], a[II_SMOOTH_PRED - 1] build_nondc_ii_masks(set(ii_nondc_mask_32x32), 32, 32, 1); build_nondc_ii_masks(set(ii_nondc_mask_16x32), 16, 32, 1); build_nondc_ii_masks(set(ii_nondc_mask_16x16), 16, 16, 2); build_nondc_ii_masks(set(ii_nondc_mask_8x32), 8, 32, 1); build_nondc_ii_masks(set(ii_nondc_mask_8x16), 8, 16, 2); build_nondc_ii_masks(set(ii_nondc_mask_8x8), 8, 8, 4); build_nondc_ii_masks(set(ii_nondc_mask_4x16), 4, 16, 2); build_nondc_ii_masks(set(ii_nondc_mask_4x8), 4, 8, 4); build_nondc_ii_masks(set(ii_nondc_mask_4x4), 4, 4, 8); #undef set }