diff options
Diffstat (limited to 'third_party/dav1d/src/wedge.c')
| -rw-r--r-- | third_party/dav1d/src/wedge.c | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/third_party/dav1d/src/wedge.c b/third_party/dav1d/src/wedge.c new file mode 100644 index 0000000000..6466068f32 --- /dev/null +++ b/third_party/dav1d/src/wedge.c @@ -0,0 +1,342 @@ +/* + * 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 { + 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 }, +}; + +static uint8_t ALIGN(wedge_masks_444_32x32[2 * 16 * 32 * 32], 64); +static uint8_t ALIGN(wedge_masks_444_32x16[2 * 16 * 32 * 16], 64); +static uint8_t ALIGN(wedge_masks_444_32x8 [2 * 16 * 32 * 8], 64); +static uint8_t ALIGN(wedge_masks_444_16x32[2 * 16 * 16 * 32], 64); +static uint8_t ALIGN(wedge_masks_444_16x16[2 * 16 * 16 * 16], 64); +static uint8_t ALIGN(wedge_masks_444_16x8 [2 * 16 * 16 * 8], 64); +static uint8_t ALIGN(wedge_masks_444_8x32 [2 * 16 * 8 * 32], 64); +static uint8_t ALIGN(wedge_masks_444_8x16 [2 * 16 * 8 * 16], 64); +static uint8_t ALIGN(wedge_masks_444_8x8 [2 * 16 * 8 * 8], 64); + +static uint8_t ALIGN(wedge_masks_422_16x32[2 * 16 * 16 * 32], 64); +static uint8_t ALIGN(wedge_masks_422_16x16[2 * 16 * 16 * 16], 64); +static uint8_t ALIGN(wedge_masks_422_16x8 [2 * 16 * 16 * 8], 64); +static uint8_t ALIGN(wedge_masks_422_8x32 [2 * 16 * 8 * 32], 64); +static uint8_t ALIGN(wedge_masks_422_8x16 [2 * 16 * 8 * 16], 64); +static uint8_t ALIGN(wedge_masks_422_8x8 [2 * 16 * 8 * 8], 64); +static uint8_t ALIGN(wedge_masks_422_4x32 [2 * 16 * 4 * 32], 64); +static uint8_t ALIGN(wedge_masks_422_4x16 [2 * 16 * 4 * 16], 64); +static uint8_t ALIGN(wedge_masks_422_4x8 [2 * 16 * 4 * 8], 32); + +static uint8_t ALIGN(wedge_masks_420_16x16[2 * 16 * 16 * 16], 64); +static uint8_t ALIGN(wedge_masks_420_16x8 [2 * 16 * 16 * 8], 64); +static uint8_t ALIGN(wedge_masks_420_16x4 [2 * 16 * 16 * 4], 64); +static uint8_t ALIGN(wedge_masks_420_8x16 [2 * 16 * 8 * 16], 64); +static uint8_t ALIGN(wedge_masks_420_8x8 [2 * 16 * 8 * 8], 64); +static uint8_t ALIGN(wedge_masks_420_8x4 [2 * 16 * 8 * 4], 64); +static uint8_t ALIGN(wedge_masks_420_4x16 [2 * 16 * 4 * 16], 64); +static uint8_t ALIGN(wedge_masks_420_4x8 [2 * 16 * 4 * 8], 32); +static uint8_t ALIGN(wedge_masks_420_4x4 [2 * 16 * 4 * 4], 16); + +const uint8_t *dav1d_wedge_masks[N_BS_SIZES][3][2][16]; + +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 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 COLD 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 COLD 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, uint8_t *masks_422, + uint8_t *masks_420, 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); + + 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_444 = 16 * n_stride_444; + const int sign_stride_422 = 16 * n_stride_422; + const int sign_stride_420 = 16 * n_stride_420; + // assign pointers in externally visible array + for (int n = 0; n < 16; n++) { + const int sign = (signs >> n) & 1; + dav1d_wedge_masks[bs][0][0][n] = &masks_444[ sign * sign_stride_444]; + // not using !sign is intentional here, since 444 does not require + // any rounding since no chroma subsampling is applied. + dav1d_wedge_masks[bs][0][1][n] = &masks_444[ sign * sign_stride_444]; + dav1d_wedge_masks[bs][1][0][n] = &masks_422[ sign * sign_stride_422]; + dav1d_wedge_masks[bs][1][1][n] = &masks_422[!sign * sign_stride_422]; + dav1d_wedge_masks[bs][2][0][n] = &masks_420[ sign * sign_stride_420]; + dav1d_wedge_masks[bs][2][1][n] = &masks_420[!sign * sign_stride_420]; + masks_444 += n_stride_444; + masks_422 += n_stride_422; + masks_420 += n_stride_420; + + // 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 *)dav1d_wedge_masks[bs][1][0][n], + dav1d_wedge_masks[bs][0][0][n], 0, w, h, 0); + init_chroma((uint8_t *)dav1d_wedge_masks[bs][1][1][n], + dav1d_wedge_masks[bs][0][0][n], 1, w, h, 0); + init_chroma((uint8_t *)dav1d_wedge_masks[bs][2][0][n], + dav1d_wedge_masks[bs][0][0][n], 0, w, h, 1); + init_chroma((uint8_t *)dav1d_wedge_masks[bs][2][1][n], + dav1d_wedge_masks[bs][0][0][n], 1, w, h, 1); + } +} + +COLD void dav1d_init_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((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 +} + +#define N_II_PRED_MODES (N_INTER_INTRA_PRED_MODES - 1) +static uint8_t ALIGN(ii_dc_mask[32 * 32], 64); +static uint8_t ALIGN(ii_nondc_mask_32x32[N_II_PRED_MODES][32 * 32], 64); +static uint8_t ALIGN(ii_nondc_mask_16x32[N_II_PRED_MODES][16 * 32], 64); +static uint8_t ALIGN(ii_nondc_mask_16x16[N_II_PRED_MODES][16 * 16], 64); +static uint8_t ALIGN(ii_nondc_mask_8x32 [N_II_PRED_MODES][ 8 * 32], 64); +static uint8_t ALIGN(ii_nondc_mask_8x16 [N_II_PRED_MODES][ 8 * 16], 64); +static uint8_t ALIGN(ii_nondc_mask_8x8 [N_II_PRED_MODES][ 8 * 8], 64); +static uint8_t ALIGN(ii_nondc_mask_4x16 [N_II_PRED_MODES][ 4 * 16], 64); +static uint8_t ALIGN(ii_nondc_mask_4x8 [N_II_PRED_MODES][ 4 * 8], 32); +static uint8_t ALIGN(ii_nondc_mask_4x4 [N_II_PRED_MODES][ 4 * 4], 16); +#undef N_II_PRED_MODES + +#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 *dav1d_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 COLD 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]; + } + } +} + +COLD void dav1d_init_interintra_masks(void) { + // This function is guaranteed to be called only once + + 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 +} |