diff options
Diffstat (limited to 'third_party/aom/av1/common/cfl.c')
| -rw-r--r-- | third_party/aom/av1/common/cfl.c | 448 |
1 files changed, 0 insertions, 448 deletions
diff --git a/third_party/aom/av1/common/cfl.c b/third_party/aom/av1/common/cfl.c deleted file mode 100644 index ccc59b4eb..000000000 --- a/third_party/aom/av1/common/cfl.c +++ /dev/null @@ -1,448 +0,0 @@ -/* - * Copyright (c) 2016, Alliance for Open Media. All rights reserved - * - * This source code is subject to the terms of the BSD 2 Clause License and - * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License - * was not distributed with this source code in the LICENSE file, you can - * obtain it at www.aomedia.org/license/software. If the Alliance for Open - * Media Patent License 1.0 was not distributed with this source code in the - * PATENTS file, you can obtain it at www.aomedia.org/license/patent. - */ - -#include "av1/common/cfl.h" -#include "av1/common/common_data.h" -#include "av1/common/onyxc_int.h" - -#include "config/av1_rtcd.h" - -void cfl_init(CFL_CTX *cfl, const SequenceHeader *seq_params) { - assert(block_size_wide[CFL_MAX_BLOCK_SIZE] == CFL_BUF_LINE); - assert(block_size_high[CFL_MAX_BLOCK_SIZE] == CFL_BUF_LINE); - - memset(&cfl->recon_buf_q3, 0, sizeof(cfl->recon_buf_q3)); - memset(&cfl->ac_buf_q3, 0, sizeof(cfl->ac_buf_q3)); - cfl->subsampling_x = seq_params->subsampling_x; - cfl->subsampling_y = seq_params->subsampling_y; - cfl->are_parameters_computed = 0; - cfl->store_y = 0; - // The DC_PRED cache is disabled by default and is only enabled in - // cfl_rd_pick_alpha - cfl->use_dc_pred_cache = 0; - cfl->dc_pred_is_cached[CFL_PRED_U] = 0; - cfl->dc_pred_is_cached[CFL_PRED_V] = 0; -} - -void cfl_store_dc_pred(MACROBLOCKD *const xd, const uint8_t *input, - CFL_PRED_TYPE pred_plane, int width) { - assert(pred_plane < CFL_PRED_PLANES); - assert(width <= CFL_BUF_LINE); - - if (get_bitdepth_data_path_index(xd)) { - uint16_t *const input_16 = CONVERT_TO_SHORTPTR(input); - memcpy(xd->cfl.dc_pred_cache[pred_plane], input_16, width << 1); - return; - } - - memcpy(xd->cfl.dc_pred_cache[pred_plane], input, width); -} - -static void cfl_load_dc_pred_lbd(const int16_t *dc_pred_cache, uint8_t *dst, - int dst_stride, int width, int height) { - for (int j = 0; j < height; j++) { - memcpy(dst, dc_pred_cache, width); - dst += dst_stride; - } -} - -static void cfl_load_dc_pred_hbd(const int16_t *dc_pred_cache, uint16_t *dst, - int dst_stride, int width, int height) { - const size_t num_bytes = width << 1; - for (int j = 0; j < height; j++) { - memcpy(dst, dc_pred_cache, num_bytes); - dst += dst_stride; - } -} -void cfl_load_dc_pred(MACROBLOCKD *const xd, uint8_t *dst, int dst_stride, - TX_SIZE tx_size, CFL_PRED_TYPE pred_plane) { - const int width = tx_size_wide[tx_size]; - const int height = tx_size_high[tx_size]; - assert(pred_plane < CFL_PRED_PLANES); - assert(width <= CFL_BUF_LINE); - assert(height <= CFL_BUF_LINE); - if (get_bitdepth_data_path_index(xd)) { - uint16_t *dst_16 = CONVERT_TO_SHORTPTR(dst); - cfl_load_dc_pred_hbd(xd->cfl.dc_pred_cache[pred_plane], dst_16, dst_stride, - width, height); - return; - } - cfl_load_dc_pred_lbd(xd->cfl.dc_pred_cache[pred_plane], dst, dst_stride, - width, height); -} - -// Due to frame boundary issues, it is possible that the total area covered by -// chroma exceeds that of luma. When this happens, we fill the missing pixels by -// repeating the last columns and/or rows. -static INLINE void cfl_pad(CFL_CTX *cfl, int width, int height) { - const int diff_width = width - cfl->buf_width; - const int diff_height = height - cfl->buf_height; - - if (diff_width > 0) { - const int min_height = height - diff_height; - uint16_t *recon_buf_q3 = cfl->recon_buf_q3 + (width - diff_width); - for (int j = 0; j < min_height; j++) { - const uint16_t last_pixel = recon_buf_q3[-1]; - assert(recon_buf_q3 + diff_width <= cfl->recon_buf_q3 + CFL_BUF_SQUARE); - for (int i = 0; i < diff_width; i++) { - recon_buf_q3[i] = last_pixel; - } - recon_buf_q3 += CFL_BUF_LINE; - } - cfl->buf_width = width; - } - if (diff_height > 0) { - uint16_t *recon_buf_q3 = - cfl->recon_buf_q3 + ((height - diff_height) * CFL_BUF_LINE); - for (int j = 0; j < diff_height; j++) { - const uint16_t *last_row_q3 = recon_buf_q3 - CFL_BUF_LINE; - assert(recon_buf_q3 + width <= cfl->recon_buf_q3 + CFL_BUF_SQUARE); - for (int i = 0; i < width; i++) { - recon_buf_q3[i] = last_row_q3[i]; - } - recon_buf_q3 += CFL_BUF_LINE; - } - cfl->buf_height = height; - } -} - -static void subtract_average_c(const uint16_t *src, int16_t *dst, int width, - int height, int round_offset, int num_pel_log2) { - int sum = round_offset; - const uint16_t *recon = src; - for (int j = 0; j < height; j++) { - for (int i = 0; i < width; i++) { - sum += recon[i]; - } - recon += CFL_BUF_LINE; - } - const int avg = sum >> num_pel_log2; - for (int j = 0; j < height; j++) { - for (int i = 0; i < width; i++) { - dst[i] = src[i] - avg; - } - src += CFL_BUF_LINE; - dst += CFL_BUF_LINE; - } -} - -CFL_SUB_AVG_FN(c) - -static INLINE int cfl_idx_to_alpha(int alpha_idx, int joint_sign, - CFL_PRED_TYPE pred_type) { - const int alpha_sign = (pred_type == CFL_PRED_U) ? CFL_SIGN_U(joint_sign) - : CFL_SIGN_V(joint_sign); - if (alpha_sign == CFL_SIGN_ZERO) return 0; - const int abs_alpha_q3 = - (pred_type == CFL_PRED_U) ? CFL_IDX_U(alpha_idx) : CFL_IDX_V(alpha_idx); - return (alpha_sign == CFL_SIGN_POS) ? abs_alpha_q3 + 1 : -abs_alpha_q3 - 1; -} - -static INLINE void cfl_predict_lbd_c(const int16_t *ac_buf_q3, uint8_t *dst, - int dst_stride, int alpha_q3, int width, - int height) { - for (int j = 0; j < height; j++) { - for (int i = 0; i < width; i++) { - dst[i] = clip_pixel(get_scaled_luma_q0(alpha_q3, ac_buf_q3[i]) + dst[i]); - } - dst += dst_stride; - ac_buf_q3 += CFL_BUF_LINE; - } -} - -// Null function used for invalid tx_sizes -void cfl_predict_lbd_null(const int16_t *ac_buf_q3, uint8_t *dst, - int dst_stride, int alpha_q3) { - (void)ac_buf_q3; - (void)dst; - (void)dst_stride; - (void)alpha_q3; - assert(0); -} - -CFL_PREDICT_FN(c, lbd) - -void cfl_predict_hbd_c(const int16_t *ac_buf_q3, uint16_t *dst, int dst_stride, - int alpha_q3, int bit_depth, int width, int height) { - for (int j = 0; j < height; j++) { - for (int i = 0; i < width; i++) { - dst[i] = clip_pixel_highbd( - get_scaled_luma_q0(alpha_q3, ac_buf_q3[i]) + dst[i], bit_depth); - } - dst += dst_stride; - ac_buf_q3 += CFL_BUF_LINE; - } -} - -// Null function used for invalid tx_sizes -void cfl_predict_hbd_null(const int16_t *ac_buf_q3, uint16_t *dst, - int dst_stride, int alpha_q3, int bd) { - (void)ac_buf_q3; - (void)dst; - (void)dst_stride; - (void)alpha_q3; - (void)bd; - assert(0); -} - -CFL_PREDICT_FN(c, hbd) - -static void cfl_compute_parameters(MACROBLOCKD *const xd, TX_SIZE tx_size) { - CFL_CTX *const cfl = &xd->cfl; - // Do not call cfl_compute_parameters multiple time on the same values. - assert(cfl->are_parameters_computed == 0); - - cfl_pad(cfl, tx_size_wide[tx_size], tx_size_high[tx_size]); - get_subtract_average_fn(tx_size)(cfl->recon_buf_q3, cfl->ac_buf_q3); - cfl->are_parameters_computed = 1; -} - -void cfl_predict_block(MACROBLOCKD *const xd, uint8_t *dst, int dst_stride, - TX_SIZE tx_size, int plane) { - CFL_CTX *const cfl = &xd->cfl; - MB_MODE_INFO *mbmi = xd->mi[0]; - assert(is_cfl_allowed(xd)); - - if (!cfl->are_parameters_computed) cfl_compute_parameters(xd, tx_size); - - const int alpha_q3 = - cfl_idx_to_alpha(mbmi->cfl_alpha_idx, mbmi->cfl_alpha_signs, plane - 1); - assert((tx_size_high[tx_size] - 1) * CFL_BUF_LINE + tx_size_wide[tx_size] <= - CFL_BUF_SQUARE); - if (get_bitdepth_data_path_index(xd)) { - uint16_t *dst_16 = CONVERT_TO_SHORTPTR(dst); - get_predict_hbd_fn(tx_size)(cfl->ac_buf_q3, dst_16, dst_stride, alpha_q3, - xd->bd); - return; - } - get_predict_lbd_fn(tx_size)(cfl->ac_buf_q3, dst, dst_stride, alpha_q3); -} - -// Null function used for invalid tx_sizes -void cfl_subsample_lbd_null(const uint8_t *input, int input_stride, - uint16_t *output_q3) { - (void)input; - (void)input_stride; - (void)output_q3; - assert(0); -} - -// Null function used for invalid tx_sizes -void cfl_subsample_hbd_null(const uint16_t *input, int input_stride, - uint16_t *output_q3) { - (void)input; - (void)input_stride; - (void)output_q3; - assert(0); -} - -static void cfl_luma_subsampling_420_lbd_c(const uint8_t *input, - int input_stride, - uint16_t *output_q3, int width, - int height) { - for (int j = 0; j < height; j += 2) { - for (int i = 0; i < width; i += 2) { - const int bot = i + input_stride; - output_q3[i >> 1] = - (input[i] + input[i + 1] + input[bot] + input[bot + 1]) << 1; - } - input += input_stride << 1; - output_q3 += CFL_BUF_LINE; - } -} - -static void cfl_luma_subsampling_422_lbd_c(const uint8_t *input, - int input_stride, - uint16_t *output_q3, int width, - int height) { - assert((height - 1) * CFL_BUF_LINE + width <= CFL_BUF_SQUARE); - for (int j = 0; j < height; j++) { - for (int i = 0; i < width; i += 2) { - output_q3[i >> 1] = (input[i] + input[i + 1]) << 2; - } - input += input_stride; - output_q3 += CFL_BUF_LINE; - } -} - -static void cfl_luma_subsampling_444_lbd_c(const uint8_t *input, - int input_stride, - uint16_t *output_q3, int width, - int height) { - assert((height - 1) * CFL_BUF_LINE + width <= CFL_BUF_SQUARE); - for (int j = 0; j < height; j++) { - for (int i = 0; i < width; i++) { - output_q3[i] = input[i] << 3; - } - input += input_stride; - output_q3 += CFL_BUF_LINE; - } -} - -static void cfl_luma_subsampling_420_hbd_c(const uint16_t *input, - int input_stride, - uint16_t *output_q3, int width, - int height) { - for (int j = 0; j < height; j += 2) { - for (int i = 0; i < width; i += 2) { - const int bot = i + input_stride; - output_q3[i >> 1] = - (input[i] + input[i + 1] + input[bot] + input[bot + 1]) << 1; - } - input += input_stride << 1; - output_q3 += CFL_BUF_LINE; - } -} - -static void cfl_luma_subsampling_422_hbd_c(const uint16_t *input, - int input_stride, - uint16_t *output_q3, int width, - int height) { - assert((height - 1) * CFL_BUF_LINE + width <= CFL_BUF_SQUARE); - for (int j = 0; j < height; j++) { - for (int i = 0; i < width; i += 2) { - output_q3[i >> 1] = (input[i] + input[i + 1]) << 2; - } - input += input_stride; - output_q3 += CFL_BUF_LINE; - } -} - -static void cfl_luma_subsampling_444_hbd_c(const uint16_t *input, - int input_stride, - uint16_t *output_q3, int width, - int height) { - assert((height - 1) * CFL_BUF_LINE + width <= CFL_BUF_SQUARE); - for (int j = 0; j < height; j++) { - for (int i = 0; i < width; i++) { - output_q3[i] = input[i] << 3; - } - input += input_stride; - output_q3 += CFL_BUF_LINE; - } -} - -CFL_GET_SUBSAMPLE_FUNCTION(c) - -static INLINE cfl_subsample_hbd_fn cfl_subsampling_hbd(TX_SIZE tx_size, - int sub_x, int sub_y) { - if (sub_x == 1) { - if (sub_y == 1) { - return cfl_get_luma_subsampling_420_hbd(tx_size); - } - return cfl_get_luma_subsampling_422_hbd(tx_size); - } - return cfl_get_luma_subsampling_444_hbd(tx_size); -} - -static INLINE cfl_subsample_lbd_fn cfl_subsampling_lbd(TX_SIZE tx_size, - int sub_x, int sub_y) { - if (sub_x == 1) { - if (sub_y == 1) { - return cfl_get_luma_subsampling_420_lbd(tx_size); - } - return cfl_get_luma_subsampling_422_lbd(tx_size); - } - return cfl_get_luma_subsampling_444_lbd(tx_size); -} - -static void cfl_store(CFL_CTX *cfl, const uint8_t *input, int input_stride, - int row, int col, TX_SIZE tx_size, int use_hbd) { - const int width = tx_size_wide[tx_size]; - const int height = tx_size_high[tx_size]; - const int tx_off_log2 = tx_size_wide_log2[0]; - const int sub_x = cfl->subsampling_x; - const int sub_y = cfl->subsampling_y; - const int store_row = row << (tx_off_log2 - sub_y); - const int store_col = col << (tx_off_log2 - sub_x); - const int store_height = height >> sub_y; - const int store_width = width >> sub_x; - - // Invalidate current parameters - cfl->are_parameters_computed = 0; - - // Store the surface of the pixel buffer that was written to, this way we - // can manage chroma overrun (e.g. when the chroma surfaces goes beyond the - // frame boundary) - if (col == 0 && row == 0) { - cfl->buf_width = store_width; - cfl->buf_height = store_height; - } else { - cfl->buf_width = OD_MAXI(store_col + store_width, cfl->buf_width); - cfl->buf_height = OD_MAXI(store_row + store_height, cfl->buf_height); - } - - // Check that we will remain inside the pixel buffer. - assert(store_row + store_height <= CFL_BUF_LINE); - assert(store_col + store_width <= CFL_BUF_LINE); - - // Store the input into the CfL pixel buffer - uint16_t *recon_buf_q3 = - cfl->recon_buf_q3 + (store_row * CFL_BUF_LINE + store_col); - - if (use_hbd) { - cfl_subsampling_hbd(tx_size, sub_x, sub_y)(CONVERT_TO_SHORTPTR(input), - input_stride, recon_buf_q3); - } else { - cfl_subsampling_lbd(tx_size, sub_x, sub_y)(input, input_stride, - recon_buf_q3); - } -} - -// Adjust the row and column of blocks smaller than 8X8, as chroma-referenced -// and non-chroma-referenced blocks are stored together in the CfL buffer. -static INLINE void sub8x8_adjust_offset(const CFL_CTX *cfl, int *row_out, - int *col_out) { - // Increment row index for bottom: 8x4, 16x4 or both bottom 4x4s. - if ((cfl->mi_row & 0x01) && cfl->subsampling_y) { - assert(*row_out == 0); - (*row_out)++; - } - - // Increment col index for right: 4x8, 4x16 or both right 4x4s. - if ((cfl->mi_col & 0x01) && cfl->subsampling_x) { - assert(*col_out == 0); - (*col_out)++; - } -} - -void cfl_store_tx(MACROBLOCKD *const xd, int row, int col, TX_SIZE tx_size, - BLOCK_SIZE bsize) { - CFL_CTX *const cfl = &xd->cfl; - struct macroblockd_plane *const pd = &xd->plane[AOM_PLANE_Y]; - uint8_t *dst = - &pd->dst.buf[(row * pd->dst.stride + col) << tx_size_wide_log2[0]]; - - if (block_size_high[bsize] == 4 || block_size_wide[bsize] == 4) { - // Only dimensions of size 4 can have an odd offset. - assert(!((col & 1) && tx_size_wide[tx_size] != 4)); - assert(!((row & 1) && tx_size_high[tx_size] != 4)); - sub8x8_adjust_offset(cfl, &row, &col); - } - cfl_store(cfl, dst, pd->dst.stride, row, col, tx_size, - get_bitdepth_data_path_index(xd)); -} - -void cfl_store_block(MACROBLOCKD *const xd, BLOCK_SIZE bsize, TX_SIZE tx_size) { - CFL_CTX *const cfl = &xd->cfl; - struct macroblockd_plane *const pd = &xd->plane[AOM_PLANE_Y]; - int row = 0; - int col = 0; - - if (block_size_high[bsize] == 4 || block_size_wide[bsize] == 4) { - sub8x8_adjust_offset(cfl, &row, &col); - } - const int width = max_intra_block_width(xd, bsize, AOM_PLANE_Y, tx_size); - const int height = max_intra_block_height(xd, bsize, AOM_PLANE_Y, tx_size); - tx_size = get_tx_size(width, height); - cfl_store(cfl, pd->dst.buf, pd->dst.stride, row, col, tx_size, - get_bitdepth_data_path_index(xd)); -} |