/* * 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 #include #include "./aom_config.h" #include "./aom_dsp_rtcd.h" #include "./av1_rtcd.h" #include "aom_dsp/fwd_txfm.h" #include "aom_ports/mem.h" #include "av1/common/blockd.h" #include "av1/common/av1_fwd_txfm1d.h" #include "av1/common/av1_fwd_txfm1d_cfg.h" #include "av1/common/idct.h" #if CONFIG_DAALA_DCT4 || CONFIG_DAALA_DCT8 || CONFIG_DAALA_DCT16 || \ CONFIG_DAALA_DCT32 || CONFIG_DAALA_DCT64 #include "av1/common/daala_tx.h" #endif static INLINE void range_check(const tran_low_t *input, const int size, const int bit) { #if 0 // CONFIG_COEFFICIENT_RANGE_CHECKING // TODO(angiebird): the range_check is not used because the bit range // in fdct# is not correct. Since we are going to merge in a new version // of fdct# from nextgenv2, we won't fix the incorrect bit range now. int i; for (i = 0; i < size; ++i) { assert(abs(input[i]) < (1 << bit)); } #else (void)input; (void)size; (void)bit; #endif } static void fdct4(const tran_low_t *input, tran_low_t *output) { tran_high_t temp; tran_low_t step[4]; // stage 0 range_check(input, 4, 14); // stage 1 output[0] = input[0] + input[3]; output[1] = input[1] + input[2]; output[2] = input[1] - input[2]; output[3] = input[0] - input[3]; range_check(output, 4, 15); // stage 2 temp = output[0] * cospi_16_64 + output[1] * cospi_16_64; step[0] = (tran_low_t)fdct_round_shift(temp); temp = output[1] * -cospi_16_64 + output[0] * cospi_16_64; step[1] = (tran_low_t)fdct_round_shift(temp); temp = output[2] * cospi_24_64 + output[3] * cospi_8_64; step[2] = (tran_low_t)fdct_round_shift(temp); temp = output[3] * cospi_24_64 + output[2] * -cospi_8_64; step[3] = (tran_low_t)fdct_round_shift(temp); range_check(step, 4, 16); // stage 3 output[0] = step[0]; output[1] = step[2]; output[2] = step[1]; output[3] = step[3]; range_check(output, 4, 16); } static void fdct8(const tran_low_t *input, tran_low_t *output) { tran_high_t temp; tran_low_t step[8]; // stage 0 range_check(input, 8, 13); // stage 1 output[0] = input[0] + input[7]; output[1] = input[1] + input[6]; output[2] = input[2] + input[5]; output[3] = input[3] + input[4]; output[4] = input[3] - input[4]; output[5] = input[2] - input[5]; output[6] = input[1] - input[6]; output[7] = input[0] - input[7]; range_check(output, 8, 14); // stage 2 step[0] = output[0] + output[3]; step[1] = output[1] + output[2]; step[2] = output[1] - output[2]; step[3] = output[0] - output[3]; step[4] = output[4]; temp = output[5] * -cospi_16_64 + output[6] * cospi_16_64; step[5] = (tran_low_t)fdct_round_shift(temp); temp = output[6] * cospi_16_64 + output[5] * cospi_16_64; step[6] = (tran_low_t)fdct_round_shift(temp); step[7] = output[7]; range_check(step, 8, 15); // stage 3 temp = step[0] * cospi_16_64 + step[1] * cospi_16_64; output[0] = (tran_low_t)fdct_round_shift(temp); temp = step[1] * -cospi_16_64 + step[0] * cospi_16_64; output[1] = (tran_low_t)fdct_round_shift(temp); temp = step[2] * cospi_24_64 + step[3] * cospi_8_64; output[2] = (tran_low_t)fdct_round_shift(temp); temp = step[3] * cospi_24_64 + step[2] * -cospi_8_64; output[3] = (tran_low_t)fdct_round_shift(temp); output[4] = step[4] + step[5]; output[5] = step[4] - step[5]; output[6] = step[7] - step[6]; output[7] = step[7] + step[6]; range_check(output, 8, 16); // stage 4 step[0] = output[0]; step[1] = output[1]; step[2] = output[2]; step[3] = output[3]; temp = output[4] * cospi_28_64 + output[7] * cospi_4_64; step[4] = (tran_low_t)fdct_round_shift(temp); temp = output[5] * cospi_12_64 + output[6] * cospi_20_64; step[5] = (tran_low_t)fdct_round_shift(temp); temp = output[6] * cospi_12_64 + output[5] * -cospi_20_64; step[6] = (tran_low_t)fdct_round_shift(temp); temp = output[7] * cospi_28_64 + output[4] * -cospi_4_64; step[7] = (tran_low_t)fdct_round_shift(temp); range_check(step, 8, 16); // stage 5 output[0] = step[0]; output[1] = step[4]; output[2] = step[2]; output[3] = step[6]; output[4] = step[1]; output[5] = step[5]; output[6] = step[3]; output[7] = step[7]; range_check(output, 8, 16); } static void fdct16(const tran_low_t *input, tran_low_t *output) { tran_high_t temp; tran_low_t step[16]; // stage 0 range_check(input, 16, 13); // stage 1 output[0] = input[0] + input[15]; output[1] = input[1] + input[14]; output[2] = input[2] + input[13]; output[3] = input[3] + input[12]; output[4] = input[4] + input[11]; output[5] = input[5] + input[10]; output[6] = input[6] + input[9]; output[7] = input[7] + input[8]; output[8] = input[7] - input[8]; output[9] = input[6] - input[9]; output[10] = input[5] - input[10]; output[11] = input[4] - input[11]; output[12] = input[3] - input[12]; output[13] = input[2] - input[13]; output[14] = input[1] - input[14]; output[15] = input[0] - input[15]; range_check(output, 16, 14); // stage 2 step[0] = output[0] + output[7]; step[1] = output[1] + output[6]; step[2] = output[2] + output[5]; step[3] = output[3] + output[4]; step[4] = output[3] - output[4]; step[5] = output[2] - output[5]; step[6] = output[1] - output[6]; step[7] = output[0] - output[7]; step[8] = output[8]; step[9] = output[9]; temp = output[10] * -cospi_16_64 + output[13] * cospi_16_64; step[10] = (tran_low_t)fdct_round_shift(temp); temp = output[11] * -cospi_16_64 + output[12] * cospi_16_64; step[11] = (tran_low_t)fdct_round_shift(temp); temp = output[12] * cospi_16_64 + output[11] * cospi_16_64; step[12] = (tran_low_t)fdct_round_shift(temp); temp = output[13] * cospi_16_64 + output[10] * cospi_16_64; step[13] = (tran_low_t)fdct_round_shift(temp); step[14] = output[14]; step[15] = output[15]; range_check(step, 16, 15); // stage 3 output[0] = step[0] + step[3]; output[1] = step[1] + step[2]; output[2] = step[1] - step[2]; output[3] = step[0] - step[3]; output[4] = step[4]; temp = step[5] * -cospi_16_64 + step[6] * cospi_16_64; output[5] = (tran_low_t)fdct_round_shift(temp); temp = step[6] * cospi_16_64 + step[5] * cospi_16_64; output[6] = (tran_low_t)fdct_round_shift(temp); output[7] = step[7]; output[8] = step[8] + step[11]; output[9] = step[9] + step[10]; output[10] = step[9] - step[10]; output[11] = step[8] - step[11]; output[12] = step[15] - step[12]; output[13] = step[14] - step[13]; output[14] = step[14] + step[13]; output[15] = step[15] + step[12]; range_check(output, 16, 16); // stage 4 temp = output[0] * cospi_16_64 + output[1] * cospi_16_64; step[0] = (tran_low_t)fdct_round_shift(temp); temp = output[1] * -cospi_16_64 + output[0] * cospi_16_64; step[1] = (tran_low_t)fdct_round_shift(temp); temp = output[2] * cospi_24_64 + output[3] * cospi_8_64; step[2] = (tran_low_t)fdct_round_shift(temp); temp = output[3] * cospi_24_64 + output[2] * -cospi_8_64; step[3] = (tran_low_t)fdct_round_shift(temp); step[4] = output[4] + output[5]; step[5] = output[4] - output[5]; step[6] = output[7] - output[6]; step[7] = output[7] + output[6]; step[8] = output[8]; temp = output[9] * -cospi_8_64 + output[14] * cospi_24_64; step[9] = (tran_low_t)fdct_round_shift(temp); temp = output[10] * -cospi_24_64 + output[13] * -cospi_8_64; step[10] = (tran_low_t)fdct_round_shift(temp); step[11] = output[11]; step[12] = output[12]; temp = output[13] * cospi_24_64 + output[10] * -cospi_8_64; step[13] = (tran_low_t)fdct_round_shift(temp); temp = output[14] * cospi_8_64 + output[9] * cospi_24_64; step[14] = (tran_low_t)fdct_round_shift(temp); step[15] = output[15]; range_check(step, 16, 16); // stage 5 output[0] = step[0]; output[1] = step[1]; output[2] = step[2]; output[3] = step[3]; temp = step[4] * cospi_28_64 + step[7] * cospi_4_64; output[4] = (tran_low_t)fdct_round_shift(temp); temp = step[5] * cospi_12_64 + step[6] * cospi_20_64; output[5] = (tran_low_t)fdct_round_shift(temp); temp = step[6] * cospi_12_64 + step[5] * -cospi_20_64; output[6] = (tran_low_t)fdct_round_shift(temp); temp = step[7] * cospi_28_64 + step[4] * -cospi_4_64; output[7] = (tran_low_t)fdct_round_shift(temp); output[8] = step[8] + step[9]; output[9] = step[8] - step[9]; output[10] = step[11] - step[10]; output[11] = step[11] + step[10]; output[12] = step[12] + step[13]; output[13] = step[12] - step[13]; output[14] = step[15] - step[14]; output[15] = step[15] + step[14]; range_check(output, 16, 16); // stage 6 step[0] = output[0]; step[1] = output[1]; step[2] = output[2]; step[3] = output[3]; step[4] = output[4]; step[5] = output[5]; step[6] = output[6]; step[7] = output[7]; temp = output[8] * cospi_30_64 + output[15] * cospi_2_64; step[8] = (tran_low_t)fdct_round_shift(temp); temp = output[9] * cospi_14_64 + output[14] * cospi_18_64; step[9] = (tran_low_t)fdct_round_shift(temp); temp = output[10] * cospi_22_64 + output[13] * cospi_10_64; step[10] = (tran_low_t)fdct_round_shift(temp); temp = output[11] * cospi_6_64 + output[12] * cospi_26_64; step[11] = (tran_low_t)fdct_round_shift(temp); temp = output[12] * cospi_6_64 + output[11] * -cospi_26_64; step[12] = (tran_low_t)fdct_round_shift(temp); temp = output[13] * cospi_22_64 + output[10] * -cospi_10_64; step[13] = (tran_low_t)fdct_round_shift(temp); temp = output[14] * cospi_14_64 + output[9] * -cospi_18_64; step[14] = (tran_low_t)fdct_round_shift(temp); temp = output[15] * cospi_30_64 + output[8] * -cospi_2_64; step[15] = (tran_low_t)fdct_round_shift(temp); range_check(step, 16, 16); // stage 7 output[0] = step[0]; output[1] = step[8]; output[2] = step[4]; output[3] = step[12]; output[4] = step[2]; output[5] = step[10]; output[6] = step[6]; output[7] = step[14]; output[8] = step[1]; output[9] = step[9]; output[10] = step[5]; output[11] = step[13]; output[12] = step[3]; output[13] = step[11]; output[14] = step[7]; output[15] = step[15]; range_check(output, 16, 16); } static void fdct32(const tran_low_t *input, tran_low_t *output) { tran_high_t temp; tran_low_t step[32]; // stage 0 range_check(input, 32, 14); // stage 1 output[0] = input[0] + input[31]; output[1] = input[1] + input[30]; output[2] = input[2] + input[29]; output[3] = input[3] + input[28]; output[4] = input[4] + input[27]; output[5] = input[5] + input[26]; output[6] = input[6] + input[25]; output[7] = input[7] + input[24]; output[8] = input[8] + input[23]; output[9] = input[9] + input[22]; output[10] = input[10] + input[21]; output[11] = input[11] + input[20]; output[12] = input[12] + input[19]; output[13] = input[13] + input[18]; output[14] = input[14] + input[17]; output[15] = input[15] + input[16]; output[16] = input[15] - input[16]; output[17] = input[14] - input[17]; output[18] = input[13] - input[18]; output[19] = input[12] - input[19]; output[20] = input[11] - input[20]; output[21] = input[10] - input[21]; output[22] = input[9] - input[22]; output[23] = input[8] - input[23]; output[24] = input[7] - input[24]; output[25] = input[6] - input[25]; output[26] = input[5] - input[26]; output[27] = input[4] - input[27]; output[28] = input[3] - input[28]; output[29] = input[2] - input[29]; output[30] = input[1] - input[30]; output[31] = input[0] - input[31]; range_check(output, 32, 15); // stage 2 step[0] = output[0] + output[15]; step[1] = output[1] + output[14]; step[2] = output[2] + output[13]; step[3] = output[3] + output[12]; step[4] = output[4] + output[11]; step[5] = output[5] + output[10]; step[6] = output[6] + output[9]; step[7] = output[7] + output[8]; step[8] = output[7] - output[8]; step[9] = output[6] - output[9]; step[10] = output[5] - output[10]; step[11] = output[4] - output[11]; step[12] = output[3] - output[12]; step[13] = output[2] - output[13]; step[14] = output[1] - output[14]; step[15] = output[0] - output[15]; step[16] = output[16]; step[17] = output[17]; step[18] = output[18]; step[19] = output[19]; temp = output[20] * -cospi_16_64 + output[27] * cospi_16_64; step[20] = (tran_low_t)fdct_round_shift(temp); temp = output[21] * -cospi_16_64 + output[26] * cospi_16_64; step[21] = (tran_low_t)fdct_round_shift(temp); temp = output[22] * -cospi_16_64 + output[25] * cospi_16_64; step[22] = (tran_low_t)fdct_round_shift(temp); temp = output[23] * -cospi_16_64 + output[24] * cospi_16_64; step[23] = (tran_low_t)fdct_round_shift(temp); temp = output[24] * cospi_16_64 + output[23] * cospi_16_64; step[24] = (tran_low_t)fdct_round_shift(temp); temp = output[25] * cospi_16_64 + output[22] * cospi_16_64; step[25] = (tran_low_t)fdct_round_shift(temp); temp = output[26] * cospi_16_64 + output[21] * cospi_16_64; step[26] = (tran_low_t)fdct_round_shift(temp); temp = output[27] * cospi_16_64 + output[20] * cospi_16_64; step[27] = (tran_low_t)fdct_round_shift(temp); step[28] = output[28]; step[29] = output[29]; step[30] = output[30]; step[31] = output[31]; range_check(step, 32, 16); // stage 3 output[0] = step[0] + step[7]; output[1] = step[1] + step[6]; output[2] = step[2] + step[5]; output[3] = step[3] + step[4]; output[4] = step[3] - step[4]; output[5] = step[2] - step[5]; output[6] = step[1] - step[6]; output[7] = step[0] - step[7]; output[8] = step[8]; output[9] = step[9]; temp = step[10] * -cospi_16_64 + step[13] * cospi_16_64; output[10] = (tran_low_t)fdct_round_shift(temp); temp = step[11] * -cospi_16_64 + step[12] * cospi_16_64; output[11] = (tran_low_t)fdct_round_shift(temp); temp = step[12] * cospi_16_64 + step[11] * cospi_16_64; output[12] = (tran_low_t)fdct_round_shift(temp); temp = step[13] * cospi_16_64 + step[10] * cospi_16_64; output[13] = (tran_low_t)fdct_round_shift(temp); output[14] = step[14]; output[15] = step[15]; output[16] = step[16] + step[23]; output[17] = step[17] + step[22]; output[18] = step[18] + step[21]; output[19] = step[19] + step[20]; output[20] = step[19] - step[20]; output[21] = step[18] - step[21]; output[22] = step[17] - step[22]; output[23] = step[16] - step[23]; output[24] = step[31] - step[24]; output[25] = step[30] - step[25]; output[26] = step[29] - step[26]; output[27] = step[28] - step[27]; output[28] = step[28] + step[27]; output[29] = step[29] + step[26]; output[30] = step[30] + step[25]; output[31] = step[31] + step[24]; range_check(output, 32, 17); // stage 4 step[0] = output[0] + output[3]; step[1] = output[1] + output[2]; step[2] = output[1] - output[2]; step[3] = output[0] - output[3]; step[4] = output[4]; temp = output[5] * -cospi_16_64 + output[6] * cospi_16_64; step[5] = (tran_low_t)fdct_round_shift(temp); temp = output[6] * cospi_16_64 + output[5] * cospi_16_64; step[6] = (tran_low_t)fdct_round_shift(temp); step[7] = output[7]; step[8] = output[8] + output[11]; step[9] = output[9] + output[10]; step[10] = output[9] - output[10]; step[11] = output[8] - output[11]; step[12] = output[15] - output[12]; step[13] = output[14] - output[13]; step[14] = output[14] + output[13]; step[15] = output[15] + output[12]; step[16] = output[16]; step[17] = output[17]; temp = output[18] * -cospi_8_64 + output[29] * cospi_24_64; step[18] = (tran_low_t)fdct_round_shift(temp); temp = output[19] * -cospi_8_64 + output[28] * cospi_24_64; step[19] = (tran_low_t)fdct_round_shift(temp); temp = output[20] * -cospi_24_64 + output[27] * -cospi_8_64; step[20] = (tran_low_t)fdct_round_shift(temp); temp = output[21] * -cospi_24_64 + output[26] * -cospi_8_64; step[21] = (tran_low_t)fdct_round_shift(temp); step[22] = output[22]; step[23] = output[23]; step[24] = output[24]; step[25] = output[25]; temp = output[26] * cospi_24_64 + output[21] * -cospi_8_64; step[26] = (tran_low_t)fdct_round_shift(temp); temp = output[27] * cospi_24_64 + output[20] * -cospi_8_64; step[27] = (tran_low_t)fdct_round_shift(temp); temp = output[28] * cospi_8_64 + output[19] * cospi_24_64; step[28] = (tran_low_t)fdct_round_shift(temp); temp = output[29] * cospi_8_64 + output[18] * cospi_24_64; step[29] = (tran_low_t)fdct_round_shift(temp); step[30] = output[30]; step[31] = output[31]; range_check(step, 32, 18); // stage 5 temp = step[0] * cospi_16_64 + step[1] * cospi_16_64; output[0] = (tran_low_t)fdct_round_shift(temp); temp = step[1] * -cospi_16_64 + step[0] * cospi_16_64; output[1] = (tran_low_t)fdct_round_shift(temp); temp = step[2] * cospi_24_64 + step[3] * cospi_8_64; output[2] = (tran_low_t)fdct_round_shift(temp); temp = step[3] * cospi_24_64 + step[2] * -cospi_8_64; output[3] = (tran_low_t)fdct_round_shift(temp); output[4] = step[4] + step[5]; output[5] = step[4] - step[5]; output[6] = step[7] - step[6]; output[7] = step[7] + step[6]; output[8] = step[8]; temp = step[9] * -cospi_8_64 + step[14] * cospi_24_64; output[9] = (tran_low_t)fdct_round_shift(temp); temp = step[10] * -cospi_24_64 + step[13] * -cospi_8_64; output[10] = (tran_low_t)fdct_round_shift(temp); output[11] = step[11]; output[12] = step[12]; temp = step[13] * cospi_24_64 + step[10] * -cospi_8_64; output[13] = (tran_low_t)fdct_round_shift(temp); temp = step[14] * cospi_8_64 + step[9] * cospi_24_64; output[14] = (tran_low_t)fdct_round_shift(temp); output[15] = step[15]; output[16] = step[16] + step[19]; output[17] = step[17] + step[18]; output[18] = step[17] - step[18]; output[19] = step[16] - step[19]; output[20] = step[23] - step[20]; output[21] = step[22] - step[21]; output[22] = step[22] + step[21]; output[23] = step[23] + step[20]; output[24] = step[24] + step[27]; output[25] = step[25] + step[26]; output[26] = step[25] - step[26]; output[27] = step[24] - step[27]; output[28] = step[31] - step[28]; output[29] = step[30] - step[29]; output[30] = step[30] + step[29]; output[31] = step[31] + step[28]; range_check(output, 32, 18); // stage 6 step[0] = output[0]; step[1] = output[1]; step[2] = output[2]; step[3] = output[3]; temp = output[4] * cospi_28_64 + output[7] * cospi_4_64; step[4] = (tran_low_t)fdct_round_shift(temp); temp = output[5] * cospi_12_64 + output[6] * cospi_20_64; step[5] = (tran_low_t)fdct_round_shift(temp); temp = output[6] * cospi_12_64 + output[5] * -cospi_20_64; step[6] = (tran_low_t)fdct_round_shift(temp); temp = output[7] * cospi_28_64 + output[4] * -cospi_4_64; step[7] = (tran_low_t)fdct_round_shift(temp); step[8] = output[8] + output[9]; step[9] = output[8] - output[9]; step[10] = output[11] - output[10]; step[11] = output[11] + output[10]; step[12] = output[12] + output[13]; step[13] = output[12] - output[13]; step[14] = output[15] - output[14]; step[15] = output[15] + output[14]; step[16] = output[16]; temp = output[17] * -cospi_4_64 + output[30] * cospi_28_64; step[17] = (tran_low_t)fdct_round_shift(temp); temp = output[18] * -cospi_28_64 + output[29] * -cospi_4_64; step[18] = (tran_low_t)fdct_round_shift(temp); step[19] = output[19]; step[20] = output[20]; temp = output[21] * -cospi_20_64 + output[26] * cospi_12_64; step[21] = (tran_low_t)fdct_round_shift(temp); temp = output[22] * -cospi_12_64 + output[25] * -cospi_20_64; step[22] = (tran_low_t)fdct_round_shift(temp); step[23] = output[23]; step[24] = output[24]; temp = output[25] * cospi_12_64 + output[22] * -cospi_20_64; step[25] = (tran_low_t)fdct_round_shift(temp); temp = output[26] * cospi_20_64 + output[21] * cospi_12_64; step[26] = (tran_low_t)fdct_round_shift(temp); step[27] = output[27]; step[28] = output[28]; temp = output[29] * cospi_28_64 + output[18] * -cospi_4_64; step[29] = (tran_low_t)fdct_round_shift(temp); temp = output[30] * cospi_4_64 + output[17] * cospi_28_64; step[30] = (tran_low_t)fdct_round_shift(temp); step[31] = output[31]; range_check(step, 32, 18); // stage 7 output[0] = step[0]; output[1] = step[1]; output[2] = step[2]; output[3] = step[3]; output[4] = step[4]; output[5] = step[5]; output[6] = step[6]; output[7] = step[7]; temp = step[8] * cospi_30_64 + step[15] * cospi_2_64; output[8] = (tran_low_t)fdct_round_shift(temp); temp = step[9] * cospi_14_64 + step[14] * cospi_18_64; output[9] = (tran_low_t)fdct_round_shift(temp); temp = step[10] * cospi_22_64 + step[13] * cospi_10_64; output[10] = (tran_low_t)fdct_round_shift(temp); temp = step[11] * cospi_6_64 + step[12] * cospi_26_64; output[11] = (tran_low_t)fdct_round_shift(temp); temp = step[12] * cospi_6_64 + step[11] * -cospi_26_64; output[12] = (tran_low_t)fdct_round_shift(temp); temp = step[13] * cospi_22_64 + step[10] * -cospi_10_64; output[13] = (tran_low_t)fdct_round_shift(temp); temp = step[14] * cospi_14_64 + step[9] * -cospi_18_64; output[14] = (tran_low_t)fdct_round_shift(temp); temp = step[15] * cospi_30_64 + step[8] * -cospi_2_64; output[15] = (tran_low_t)fdct_round_shift(temp); output[16] = step[16] + step[17]; output[17] = step[16] - step[17]; output[18] = step[19] - step[18]; output[19] = step[19] + step[18]; output[20] = step[20] + step[21]; output[21] = step[20] - step[21]; output[22] = step[23] - step[22]; output[23] = step[23] + step[22]; output[24] = step[24] + step[25]; output[25] = step[24] - step[25]; output[26] = step[27] - step[26]; output[27] = step[27] + step[26]; output[28] = step[28] + step[29]; output[29] = step[28] - step[29]; output[30] = step[31] - step[30]; output[31] = step[31] + step[30]; range_check(output, 32, 18); // stage 8 step[0] = output[0]; step[1] = output[1]; step[2] = output[2]; step[3] = output[3]; step[4] = output[4]; step[5] = output[5]; step[6] = output[6]; step[7] = output[7]; step[8] = output[8]; step[9] = output[9]; step[10] = output[10]; step[11] = output[11]; step[12] = output[12]; step[13] = output[13]; step[14] = output[14]; step[15] = output[15]; temp = output[16] * cospi_31_64 + output[31] * cospi_1_64; step[16] = (tran_low_t)fdct_round_shift(temp); temp = output[17] * cospi_15_64 + output[30] * cospi_17_64; step[17] = (tran_low_t)fdct_round_shift(temp); temp = output[18] * cospi_23_64 + output[29] * cospi_9_64; step[18] = (tran_low_t)fdct_round_shift(temp); temp = output[19] * cospi_7_64 + output[28] * cospi_25_64; step[19] = (tran_low_t)fdct_round_shift(temp); temp = output[20] * cospi_27_64 + output[27] * cospi_5_64; step[20] = (tran_low_t)fdct_round_shift(temp); temp = output[21] * cospi_11_64 + output[26] * cospi_21_64; step[21] = (tran_low_t)fdct_round_shift(temp); temp = output[22] * cospi_19_64 + output[25] * cospi_13_64; step[22] = (tran_low_t)fdct_round_shift(temp); temp = output[23] * cospi_3_64 + output[24] * cospi_29_64; step[23] = (tran_low_t)fdct_round_shift(temp); temp = output[24] * cospi_3_64 + output[23] * -cospi_29_64; step[24] = (tran_low_t)fdct_round_shift(temp); temp = output[25] * cospi_19_64 + output[22] * -cospi_13_64; step[25] = (tran_low_t)fdct_round_shift(temp); temp = output[26] * cospi_11_64 + output[21] * -cospi_21_64; step[26] = (tran_low_t)fdct_round_shift(temp); temp = output[27] * cospi_27_64 + output[20] * -cospi_5_64; step[27] = (tran_low_t)fdct_round_shift(temp); temp = output[28] * cospi_7_64 + output[19] * -cospi_25_64; step[28] = (tran_low_t)fdct_round_shift(temp); temp = output[29] * cospi_23_64 + output[18] * -cospi_9_64; step[29] = (tran_low_t)fdct_round_shift(temp); temp = output[30] * cospi_15_64 + output[17] * -cospi_17_64; step[30] = (tran_low_t)fdct_round_shift(temp); temp = output[31] * cospi_31_64 + output[16] * -cospi_1_64; step[31] = (tran_low_t)fdct_round_shift(temp); range_check(step, 32, 18); // stage 9 output[0] = step[0]; output[1] = step[16]; output[2] = step[8]; output[3] = step[24]; output[4] = step[4]; output[5] = step[20]; output[6] = step[12]; output[7] = step[28]; output[8] = step[2]; output[9] = step[18]; output[10] = step[10]; output[11] = step[26]; output[12] = step[6]; output[13] = step[22]; output[14] = step[14]; output[15] = step[30]; output[16] = step[1]; output[17] = step[17]; output[18] = step[9]; output[19] = step[25]; output[20] = step[5]; output[21] = step[21]; output[22] = step[13]; output[23] = step[29]; output[24] = step[3]; output[25] = step[19]; output[26] = step[11]; output[27] = step[27]; output[28] = step[7]; output[29] = step[23]; output[30] = step[15]; output[31] = step[31]; range_check(output, 32, 18); } #ifndef AV1_DCT_GTEST static void fadst4(const tran_low_t *input, tran_low_t *output) { tran_high_t x0, x1, x2, x3; tran_high_t s0, s1, s2, s3, s4, s5, s6, s7; x0 = input[0]; x1 = input[1]; x2 = input[2]; x3 = input[3]; if (!(x0 | x1 | x2 | x3)) { output[0] = output[1] = output[2] = output[3] = 0; return; } s0 = sinpi_1_9 * x0; s1 = sinpi_4_9 * x0; s2 = sinpi_2_9 * x1; s3 = sinpi_1_9 * x1; s4 = sinpi_3_9 * x2; s5 = sinpi_4_9 * x3; s6 = sinpi_2_9 * x3; s7 = x0 + x1 - x3; x0 = s0 + s2 + s5; x1 = sinpi_3_9 * s7; x2 = s1 - s3 + s6; x3 = s4; s0 = x0 + x3; s1 = x1; s2 = x2 - x3; s3 = x2 - x0 + x3; // 1-D transform scaling factor is sqrt(2). output[0] = (tran_low_t)fdct_round_shift(s0); output[1] = (tran_low_t)fdct_round_shift(s1); output[2] = (tran_low_t)fdct_round_shift(s2); output[3] = (tran_low_t)fdct_round_shift(s3); } static void fadst8(const tran_low_t *input, tran_low_t *output) { tran_high_t s0, s1, s2, s3, s4, s5, s6, s7; tran_high_t x0 = input[7]; tran_high_t x1 = input[0]; tran_high_t x2 = input[5]; tran_high_t x3 = input[2]; tran_high_t x4 = input[3]; tran_high_t x5 = input[4]; tran_high_t x6 = input[1]; tran_high_t x7 = input[6]; // stage 1 s0 = cospi_2_64 * x0 + cospi_30_64 * x1; s1 = cospi_30_64 * x0 - cospi_2_64 * x1; s2 = cospi_10_64 * x2 + cospi_22_64 * x3; s3 = cospi_22_64 * x2 - cospi_10_64 * x3; s4 = cospi_18_64 * x4 + cospi_14_64 * x5; s5 = cospi_14_64 * x4 - cospi_18_64 * x5; s6 = cospi_26_64 * x6 + cospi_6_64 * x7; s7 = cospi_6_64 * x6 - cospi_26_64 * x7; x0 = s0 + s4; x1 = s1 + s5; x2 = s2 + s6; x3 = s3 + s7; x4 = fdct_round_shift(s0 - s4); x5 = fdct_round_shift(s1 - s5); x6 = fdct_round_shift(s2 - s6); x7 = fdct_round_shift(s3 - s7); // stage 2 s0 = x0; s1 = x1; s2 = x2; s3 = x3; s4 = cospi_8_64 * x4 + cospi_24_64 * x5; s5 = cospi_24_64 * x4 - cospi_8_64 * x5; s6 = -cospi_24_64 * x6 + cospi_8_64 * x7; s7 = cospi_8_64 * x6 + cospi_24_64 * x7; x0 = fdct_round_shift(s0 + s2); x1 = fdct_round_shift(s1 + s3); x2 = fdct_round_shift(s0 - s2); x3 = fdct_round_shift(s1 - s3); x4 = fdct_round_shift(s4 + s6); x5 = fdct_round_shift(s5 + s7); x6 = fdct_round_shift(s4 - s6); x7 = fdct_round_shift(s5 - s7); // stage 3 s2 = cospi_16_64 * (x2 + x3); s3 = cospi_16_64 * (x2 - x3); s6 = cospi_16_64 * (x6 + x7); s7 = cospi_16_64 * (x6 - x7); x2 = fdct_round_shift(s2); x3 = fdct_round_shift(s3); x6 = fdct_round_shift(s6); x7 = fdct_round_shift(s7); output[0] = (tran_low_t)x0; output[1] = (tran_low_t)-x4; output[2] = (tran_low_t)x6; output[3] = (tran_low_t)-x2; output[4] = (tran_low_t)x3; output[5] = (tran_low_t)-x7; output[6] = (tran_low_t)x5; output[7] = (tran_low_t)-x1; } static void fadst16(const tran_low_t *input, tran_low_t *output) { tran_high_t s0, s1, s2, s3, s4, s5, s6, s7, s8; tran_high_t s9, s10, s11, s12, s13, s14, s15; tran_high_t x0 = input[15]; tran_high_t x1 = input[0]; tran_high_t x2 = input[13]; tran_high_t x3 = input[2]; tran_high_t x4 = input[11]; tran_high_t x5 = input[4]; tran_high_t x6 = input[9]; tran_high_t x7 = input[6]; tran_high_t x8 = input[7]; tran_high_t x9 = input[8]; tran_high_t x10 = input[5]; tran_high_t x11 = input[10]; tran_high_t x12 = input[3]; tran_high_t x13 = input[12]; tran_high_t x14 = input[1]; tran_high_t x15 = input[14]; // stage 1 s0 = x0 * cospi_1_64 + x1 * cospi_31_64; s1 = x0 * cospi_31_64 - x1 * cospi_1_64; s2 = x2 * cospi_5_64 + x3 * cospi_27_64; s3 = x2 * cospi_27_64 - x3 * cospi_5_64; s4 = x4 * cospi_9_64 + x5 * cospi_23_64; s5 = x4 * cospi_23_64 - x5 * cospi_9_64; s6 = x6 * cospi_13_64 + x7 * cospi_19_64; s7 = x6 * cospi_19_64 - x7 * cospi_13_64; s8 = x8 * cospi_17_64 + x9 * cospi_15_64; s9 = x8 * cospi_15_64 - x9 * cospi_17_64; s10 = x10 * cospi_21_64 + x11 * cospi_11_64; s11 = x10 * cospi_11_64 - x11 * cospi_21_64; s12 = x12 * cospi_25_64 + x13 * cospi_7_64; s13 = x12 * cospi_7_64 - x13 * cospi_25_64; s14 = x14 * cospi_29_64 + x15 * cospi_3_64; s15 = x14 * cospi_3_64 - x15 * cospi_29_64; x0 = s0 + s8; x1 = s1 + s9; x2 = s2 + s10; x3 = s3 + s11; x4 = s4 + s12; x5 = s5 + s13; x6 = s6 + s14; x7 = s7 + s15; x8 = fdct_round_shift(s0 - s8); x9 = fdct_round_shift(s1 - s9); x10 = fdct_round_shift(s2 - s10); x11 = fdct_round_shift(s3 - s11); x12 = fdct_round_shift(s4 - s12); x13 = fdct_round_shift(s5 - s13); x14 = fdct_round_shift(s6 - s14); x15 = fdct_round_shift(s7 - s15); // stage 2 s0 = x0; s1 = x1; s2 = x2; s3 = x3; s4 = x4; s5 = x5; s6 = x6; s7 = x7; s8 = x8 * cospi_4_64 + x9 * cospi_28_64; s9 = x8 * cospi_28_64 - x9 * cospi_4_64; s10 = x10 * cospi_20_64 + x11 * cospi_12_64; s11 = x10 * cospi_12_64 - x11 * cospi_20_64; s12 = -x12 * cospi_28_64 + x13 * cospi_4_64; s13 = x12 * cospi_4_64 + x13 * cospi_28_64; s14 = -x14 * cospi_12_64 + x15 * cospi_20_64; s15 = x14 * cospi_20_64 + x15 * cospi_12_64; x0 = s0 + s4; x1 = s1 + s5; x2 = s2 + s6; x3 = s3 + s7; x4 = fdct_round_shift(s0 - s4); x5 = fdct_round_shift(s1 - s5); x6 = fdct_round_shift(s2 - s6); x7 = fdct_round_shift(s3 - s7); x8 = s8 + s12; x9 = s9 + s13; x10 = s10 + s14; x11 = s11 + s15; x12 = fdct_round_shift(s8 - s12); x13 = fdct_round_shift(s9 - s13); x14 = fdct_round_shift(s10 - s14); x15 = fdct_round_shift(s11 - s15); // stage 3 s0 = x0; s1 = x1; s2 = x2; s3 = x3; s4 = x4 * cospi_8_64 + x5 * cospi_24_64; s5 = x4 * cospi_24_64 - x5 * cospi_8_64; s6 = -x6 * cospi_24_64 + x7 * cospi_8_64; s7 = x6 * cospi_8_64 + x7 * cospi_24_64; s8 = x8; s9 = x9; s10 = x10; s11 = x11; s12 = x12 * cospi_8_64 + x13 * cospi_24_64; s13 = x12 * cospi_24_64 - x13 * cospi_8_64; s14 = -x14 * cospi_24_64 + x15 * cospi_8_64; s15 = x14 * cospi_8_64 + x15 * cospi_24_64; x0 = fdct_round_shift(s0 + s2); x1 = fdct_round_shift(s1 + s3); x2 = fdct_round_shift(s0 - s2); x3 = fdct_round_shift(s1 - s3); x4 = fdct_round_shift(s4 + s6); x5 = fdct_round_shift(s5 + s7); x6 = fdct_round_shift(s4 - s6); x7 = fdct_round_shift(s5 - s7); x8 = fdct_round_shift(s8 + s10); x9 = fdct_round_shift(s9 + s11); x10 = fdct_round_shift(s8 - s10); x11 = fdct_round_shift(s9 - s11); x12 = fdct_round_shift(s12 + s14); x13 = fdct_round_shift(s13 + s15); x14 = fdct_round_shift(s12 - s14); x15 = fdct_round_shift(s13 - s15); // stage 4 s2 = (-cospi_16_64) * (x2 + x3); s3 = cospi_16_64 * (x2 - x3); s6 = cospi_16_64 * (x6 + x7); s7 = cospi_16_64 * (-x6 + x7); s10 = cospi_16_64 * (x10 + x11); s11 = cospi_16_64 * (-x10 + x11); s14 = (-cospi_16_64) * (x14 + x15); s15 = cospi_16_64 * (x14 - x15); x2 = fdct_round_shift(s2); x3 = fdct_round_shift(s3); x6 = fdct_round_shift(s6); x7 = fdct_round_shift(s7); x10 = fdct_round_shift(s10); x11 = fdct_round_shift(s11); x14 = fdct_round_shift(s14); x15 = fdct_round_shift(s15); output[0] = (tran_low_t)x0; output[1] = (tran_low_t)-x8; output[2] = (tran_low_t)x12; output[3] = (tran_low_t)-x4; output[4] = (tran_low_t)x6; output[5] = (tran_low_t)x14; output[6] = (tran_low_t)x10; output[7] = (tran_low_t)x2; output[8] = (tran_low_t)x3; output[9] = (tran_low_t)x11; output[10] = (tran_low_t)x15; output[11] = (tran_low_t)x7; output[12] = (tran_low_t)x5; output[13] = (tran_low_t)-x13; output[14] = (tran_low_t)x9; output[15] = (tran_low_t)-x1; } // For use in lieu of ADST static void fhalfright32(const tran_low_t *input, tran_low_t *output) { int i; tran_low_t inputhalf[16]; for (i = 0; i < 16; ++i) { output[16 + i] = input[i] * 4; } // Multiply input by sqrt(2) for (i = 0; i < 16; ++i) { inputhalf[i] = (tran_low_t)fdct_round_shift(input[i + 16] * Sqrt2); } fdct16(inputhalf, output); // Note overall scaling factor is 4 times orthogonal } #if CONFIG_MRC_TX static void get_masked_residual32(const int16_t **input, int *input_stride, const uint8_t *pred, int pred_stride, int16_t *masked_input, TxfmParam *txfm_param) { int n_masked_vals = 0; uint8_t *mrc_mask; uint8_t mask_tmp[32 * 32]; if ((txfm_param->is_inter && SIGNAL_MRC_MASK_INTER) || (!txfm_param->is_inter && SIGNAL_MRC_MASK_INTRA)) { mrc_mask = txfm_param->mask; n_masked_vals = get_mrc_diff_mask(*input, *input_stride, mrc_mask, 32, 32, 32, txfm_param->is_inter); } else { mrc_mask = mask_tmp; n_masked_vals = get_mrc_pred_mask(pred, pred_stride, mrc_mask, 32, 32, 32, txfm_param->is_inter); } // Do not use MRC_DCT if mask is invalid. DCT_DCT will be used instead. if (!is_valid_mrc_mask(n_masked_vals, 32, 32)) { *txfm_param->valid_mask = 0; return; } int32_t sum = 0; int16_t avg; // Get the masked average of the prediction for (int i = 0; i < 32; ++i) { for (int j = 0; j < 32; ++j) { sum += mrc_mask[i * 32 + j] * (*input)[i * (*input_stride) + j]; } } avg = sum / n_masked_vals; // Replace all of the unmasked pixels in the prediction with the average // of the masked pixels for (int i = 0; i < 32; ++i) { for (int j = 0; j < 32; ++j) masked_input[i * 32 + j] = (mrc_mask[i * 32 + j]) ? (*input)[i * (*input_stride) + j] : avg; } *input = masked_input; *input_stride = 32; *txfm_param->valid_mask = 1; } #endif // CONFIG_MRC_TX #if CONFIG_LGT || CONFIG_LGT_FROM_PRED static void flgt4(const tran_low_t *input, tran_low_t *output, const tran_high_t *lgtmtx) { if (!lgtmtx) assert(0); #if CONFIG_LGT_FROM_PRED // For DCT/ADST, use butterfly implementations if (lgtmtx[0] == DCT4) { fdct4(input, output); return; } else if (lgtmtx[0] == ADST4) { fadst4(input, output); return; } #endif // CONFIG_LGT_FROM_PRED // evaluate s[j] = sum of all lgtmtx[j][i]*input[i] over i=1,...,4 tran_high_t s[4] = { 0 }; for (int i = 0; i < 4; ++i) for (int j = 0; j < 4; ++j) s[j] += lgtmtx[j * 4 + i] * input[i]; for (int i = 0; i < 4; ++i) output[i] = (tran_low_t)fdct_round_shift(s[i]); } static void flgt8(const tran_low_t *input, tran_low_t *output, const tran_high_t *lgtmtx) { if (!lgtmtx) assert(0); #if CONFIG_LGT_FROM_PRED // For DCT/ADST, use butterfly implementations if (lgtmtx[0] == DCT8) { fdct8(input, output); return; } else if (lgtmtx[0] == ADST8) { fadst8(input, output); return; } #endif // CONFIG_LGT_FROM_PRED // evaluate s[j] = sum of all lgtmtx[j][i]*input[i] over i=1,...,8 tran_high_t s[8] = { 0 }; for (int i = 0; i < 8; ++i) for (int j = 0; j < 8; ++j) s[j] += lgtmtx[j * 8 + i] * input[i]; for (int i = 0; i < 8; ++i) output[i] = (tran_low_t)fdct_round_shift(s[i]); } #endif // CONFIG_LGT || CONFIG_LGT_FROM_PRED #if CONFIG_LGT_FROM_PRED static void flgt16up(const tran_low_t *input, tran_low_t *output, const tran_high_t *lgtmtx) { if (lgtmtx[0] == DCT16) { fdct16(input, output); return; } else if (lgtmtx[0] == ADST16) { fadst16(input, output); return; } else if (lgtmtx[0] == DCT32) { fdct32(input, output); return; } else if (lgtmtx[0] == ADST32) { fhalfright32(input, output); return; } else { assert(0); } } typedef void (*FlgtFunc)(const tran_low_t *input, tran_low_t *output, const tran_high_t *lgtmtx); static FlgtFunc flgt_func[4] = { flgt4, flgt8, flgt16up, flgt16up }; typedef void (*GetLgtFunc)(const TxfmParam *txfm_param, int is_col, const tran_high_t *lgtmtx[], int ntx); static GetLgtFunc get_lgt_func[4] = { get_lgt4_from_pred, get_lgt8_from_pred, get_lgt16up_from_pred, get_lgt16up_from_pred }; // this inline function corresponds to the up scaling before the first // transform in the av1_fht* functions static INLINE tran_low_t fwd_upscale_wrt_txsize(const tran_high_t val, const TX_SIZE tx_size) { switch (tx_size) { case TX_4X4: return (tran_low_t)val << 4; case TX_8X8: case TX_4X16: case TX_16X4: case TX_8X32: case TX_32X8: return (tran_low_t)val << 2; case TX_4X8: case TX_8X4: case TX_8X16: case TX_16X8: return (tran_low_t)fdct_round_shift(val * 4 * Sqrt2); default: assert(0); break; } return 0; } // This inline function corresponds to the bit shift after the second // transform in the av1_fht* functions static INLINE tran_low_t fwd_downscale_wrt_txsize(const tran_low_t val, const TX_SIZE tx_size) { switch (tx_size) { case TX_4X4: return (val + 1) >> 2; case TX_4X8: case TX_8X4: case TX_8X8: case TX_4X16: case TX_16X4: return (val + (val < 0)) >> 1; case TX_8X16: case TX_16X8: return val; case TX_8X32: case TX_32X8: return ROUND_POWER_OF_TWO_SIGNED(val, 2); default: assert(0); break; } return 0; } void flgt2d_from_pred_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_SIZE tx_size = txfm_param->tx_size; const int w = tx_size_wide[tx_size]; const int h = tx_size_high[tx_size]; const int wlog2 = tx_size_wide_log2[tx_size]; const int hlog2 = tx_size_high_log2[tx_size]; assert(w <= 8 || h <= 8); int i, j; tran_low_t out[256]; // max size: 8x32 and 32x8 tran_low_t temp_in[32], temp_out[32]; const tran_high_t *lgtmtx_col[1]; const tran_high_t *lgtmtx_row[1]; get_lgt_func[hlog2 - 2](txfm_param, 1, lgtmtx_col, w); get_lgt_func[wlog2 - 2](txfm_param, 0, lgtmtx_row, h); // For forward transforms, to be consistent with av1_fht functions, we apply // short transform first and long transform second. if (w < h) { // Row transforms for (i = 0; i < h; ++i) { for (j = 0; j < w; ++j) temp_in[j] = fwd_upscale_wrt_txsize(input[i * stride + j], tx_size); flgt_func[wlog2 - 2](temp_in, temp_out, lgtmtx_row[0]); // right shift of 2 bits here in fht8x16 and fht16x8 for (j = 0; j < w; ++j) out[j * h + i] = (tx_size == TX_16X8 || tx_size == TX_8X16) ? ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2) : temp_out[j]; } // Column transforms for (i = 0; i < w; ++i) { for (j = 0; j < h; ++j) temp_in[j] = out[j + i * h]; flgt_func[hlog2 - 2](temp_in, temp_out, lgtmtx_col[0]); for (j = 0; j < h; ++j) output[j * w + i] = fwd_downscale_wrt_txsize(temp_out[j], tx_size); } } else { // Column transforms for (i = 0; i < w; ++i) { for (j = 0; j < h; ++j) temp_in[j] = fwd_upscale_wrt_txsize(input[j * stride + i], tx_size); flgt_func[hlog2 - 2](temp_in, temp_out, lgtmtx_col[0]); // fht8x16 and fht16x8 have right shift of 2 bits here for (j = 0; j < h; ++j) out[j * w + i] = (tx_size == TX_16X8 || tx_size == TX_8X16) ? ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2) : temp_out[j]; } // Row transforms for (i = 0; i < h; ++i) { for (j = 0; j < w; ++j) temp_in[j] = out[j + i * w]; flgt_func[wlog2 - 2](temp_in, temp_out, lgtmtx_row[0]); for (j = 0; j < w; ++j) output[j + i * w] = fwd_downscale_wrt_txsize(temp_out[j], tx_size); } } } #endif // CONFIG_LGT_FROM_PRED #if CONFIG_EXT_TX // TODO(sarahparker) these functions will be removed once the highbitdepth // codepath works properly for rectangular transforms. They have almost // identical versions in av1_fwd_txfm1d.c, but those are currently only // being used for square transforms. static void fidtx4(const tran_low_t *input, tran_low_t *output) { int i; for (i = 0; i < 4; ++i) { output[i] = (tran_low_t)fdct_round_shift(input[i] * Sqrt2); } } static void fidtx8(const tran_low_t *input, tran_low_t *output) { int i; for (i = 0; i < 8; ++i) { output[i] = input[i] * 2; } } static void fidtx16(const tran_low_t *input, tran_low_t *output) { int i; for (i = 0; i < 16; ++i) { output[i] = (tran_low_t)fdct_round_shift(input[i] * 2 * Sqrt2); } } static void fidtx32(const tran_low_t *input, tran_low_t *output) { int i; for (i = 0; i < 32; ++i) { output[i] = input[i] * 4; } } static void copy_block(const int16_t *src, int src_stride, int l, int w, int16_t *dest, int dest_stride) { int i; for (i = 0; i < l; ++i) { memcpy(dest + dest_stride * i, src + src_stride * i, w * sizeof(int16_t)); } } static void fliplr(int16_t *dest, int stride, int l, int w) { int i, j; for (i = 0; i < l; ++i) { for (j = 0; j < w / 2; ++j) { const int16_t tmp = dest[i * stride + j]; dest[i * stride + j] = dest[i * stride + w - 1 - j]; dest[i * stride + w - 1 - j] = tmp; } } } static void flipud(int16_t *dest, int stride, int l, int w) { int i, j; for (j = 0; j < w; ++j) { for (i = 0; i < l / 2; ++i) { const int16_t tmp = dest[i * stride + j]; dest[i * stride + j] = dest[(l - 1 - i) * stride + j]; dest[(l - 1 - i) * stride + j] = tmp; } } } static void fliplrud(int16_t *dest, int stride, int l, int w) { int i, j; for (i = 0; i < l / 2; ++i) { for (j = 0; j < w; ++j) { const int16_t tmp = dest[i * stride + j]; dest[i * stride + j] = dest[(l - 1 - i) * stride + w - 1 - j]; dest[(l - 1 - i) * stride + w - 1 - j] = tmp; } } } static void copy_fliplr(const int16_t *src, int src_stride, int l, int w, int16_t *dest, int dest_stride) { copy_block(src, src_stride, l, w, dest, dest_stride); fliplr(dest, dest_stride, l, w); } static void copy_flipud(const int16_t *src, int src_stride, int l, int w, int16_t *dest, int dest_stride) { copy_block(src, src_stride, l, w, dest, dest_stride); flipud(dest, dest_stride, l, w); } static void copy_fliplrud(const int16_t *src, int src_stride, int l, int w, int16_t *dest, int dest_stride) { copy_block(src, src_stride, l, w, dest, dest_stride); fliplrud(dest, dest_stride, l, w); } static void maybe_flip_input(const int16_t **src, int *src_stride, int l, int w, int16_t *buff, TX_TYPE tx_type) { switch (tx_type) { #if CONFIG_MRC_TX case MRC_DCT: #endif // CONFIG_MRC_TX case DCT_DCT: case ADST_DCT: case DCT_ADST: case ADST_ADST: case IDTX: case V_DCT: case H_DCT: case V_ADST: case H_ADST: break; case FLIPADST_DCT: case FLIPADST_ADST: case V_FLIPADST: copy_flipud(*src, *src_stride, l, w, buff, w); *src = buff; *src_stride = w; break; case DCT_FLIPADST: case ADST_FLIPADST: case H_FLIPADST: copy_fliplr(*src, *src_stride, l, w, buff, w); *src = buff; *src_stride = w; break; case FLIPADST_FLIPADST: copy_fliplrud(*src, *src_stride, l, w, buff, w); *src = buff; *src_stride = w; break; default: assert(0); break; } } #endif // CONFIG_EXT_TX void av1_fht4x4_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif #if !CONFIG_DAALA_DCT4 if (tx_type == DCT_DCT) { aom_fdct4x4_c(input, output, stride); return; } #endif { static const transform_2d FHT[] = { #if CONFIG_DAALA_DCT4 { daala_fdct4, daala_fdct4 }, // DCT_DCT { daala_fdst4, daala_fdct4 }, // ADST_DCT { daala_fdct4, daala_fdst4 }, // DCT_ADST { daala_fdst4, daala_fdst4 }, // ADST_ADST #if CONFIG_EXT_TX { daala_fdst4, daala_fdct4 }, // FLIPADST_DCT { daala_fdct4, daala_fdst4 }, // DCT_FLIPADST { daala_fdst4, daala_fdst4 }, // FLIPADST_FLIPADST { daala_fdst4, daala_fdst4 }, // ADST_FLIPADST { daala_fdst4, daala_fdst4 }, // FLIPADST_ADST { daala_idtx4, daala_idtx4 }, // IDTX { daala_fdct4, daala_idtx4 }, // V_DCT { daala_idtx4, daala_fdct4 }, // H_DCT { daala_fdst4, daala_idtx4 }, // V_ADST { daala_idtx4, daala_fdst4 }, // H_ADST { daala_fdst4, daala_idtx4 }, // V_FLIPADST { daala_idtx4, daala_fdst4 }, // H_FLIPADST #endif #else { fdct4, fdct4 }, // DCT_DCT { fadst4, fdct4 }, // ADST_DCT { fdct4, fadst4 }, // DCT_ADST { fadst4, fadst4 }, // ADST_ADST #if CONFIG_EXT_TX { fadst4, fdct4 }, // FLIPADST_DCT { fdct4, fadst4 }, // DCT_FLIPADST { fadst4, fadst4 }, // FLIPADST_FLIPADST { fadst4, fadst4 }, // ADST_FLIPADST { fadst4, fadst4 }, // FLIPADST_ADST { fidtx4, fidtx4 }, // IDTX { fdct4, fidtx4 }, // V_DCT { fidtx4, fdct4 }, // H_DCT { fadst4, fidtx4 }, // V_ADST { fidtx4, fadst4 }, // H_ADST { fadst4, fidtx4 }, // V_FLIPADST { fidtx4, fadst4 }, // H_FLIPADST #endif #endif }; const transform_2d ht = FHT[tx_type]; tran_low_t out[4 * 4]; int i, j; tran_low_t temp_in[4], temp_out[4]; #if CONFIG_EXT_TX int16_t flipped_input[4 * 4]; maybe_flip_input(&input, &stride, 4, 4, flipped_input, tx_type); #endif #if CONFIG_LGT // Choose LGT adaptive to the prediction. We may apply different LGTs for // different rows/columns, indicated by the pointers to 2D arrays const tran_high_t *lgtmtx_col[1]; const tran_high_t *lgtmtx_row[1]; int use_lgt_col = get_lgt4(txfm_param, 1, lgtmtx_col); int use_lgt_row = get_lgt4(txfm_param, 0, lgtmtx_row); #endif // Columns for (i = 0; i < 4; ++i) { /* A C99-safe upshift by 4 for both Daala and VPx TX. */ for (j = 0; j < 4; ++j) temp_in[j] = input[j * stride + i] * 16; #if !CONFIG_DAALA_DCT4 if (i == 0 && temp_in[0]) temp_in[0] += 1; #endif #if CONFIG_LGT if (use_lgt_col) flgt4(temp_in, temp_out, lgtmtx_col[0]); else #endif ht.cols(temp_in, temp_out); for (j = 0; j < 4; ++j) out[j * 4 + i] = temp_out[j]; } // Rows for (i = 0; i < 4; ++i) { for (j = 0; j < 4; ++j) temp_in[j] = out[j + i * 4]; #if CONFIG_LGT if (use_lgt_row) flgt4(temp_in, temp_out, lgtmtx_row[0]); else #endif ht.rows(temp_in, temp_out); #if CONFIG_DAALA_DCT4 /* Daala TX has orthonormal scaling; shift down by only 1 to achieve the usual VPx coefficient left-shift of 3. */ for (j = 0; j < 4; ++j) output[j + i * 4] = temp_out[j] >> 1; #else for (j = 0; j < 4; ++j) output[j + i * 4] = (temp_out[j] + 1) >> 2; #endif } } } void av1_fht4x8_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct8, fdct4 }, // DCT_DCT { fadst8, fdct4 }, // ADST_DCT { fdct8, fadst4 }, // DCT_ADST { fadst8, fadst4 }, // ADST_ADST #if CONFIG_EXT_TX { fadst8, fdct4 }, // FLIPADST_DCT { fdct8, fadst4 }, // DCT_FLIPADST { fadst8, fadst4 }, // FLIPADST_FLIPADST { fadst8, fadst4 }, // ADST_FLIPADST { fadst8, fadst4 }, // FLIPADST_ADST { fidtx8, fidtx4 }, // IDTX { fdct8, fidtx4 }, // V_DCT { fidtx8, fdct4 }, // H_DCT { fadst8, fidtx4 }, // V_ADST { fidtx8, fadst4 }, // H_ADST { fadst8, fidtx4 }, // V_FLIPADST { fidtx8, fadst4 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 4; const int n2 = 8; tran_low_t out[8 * 4]; tran_low_t temp_in[8], temp_out[8]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[8 * 4]; maybe_flip_input(&input, &stride, n2, n, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_col[1]; const tran_high_t *lgtmtx_row[1]; int use_lgt_col = get_lgt8(txfm_param, 1, lgtmtx_col); int use_lgt_row = get_lgt4(txfm_param, 0, lgtmtx_row); #endif // Rows for (i = 0; i < n2; ++i) { for (j = 0; j < n; ++j) temp_in[j] = (tran_low_t)fdct_round_shift(input[i * stride + j] * 4 * Sqrt2); #if CONFIG_LGT if (use_lgt_row) flgt4(temp_in, temp_out, lgtmtx_row[0]); else #endif ht.rows(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n2 + i] = temp_out[j]; } // Columns for (i = 0; i < n; ++i) { for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2]; #if CONFIG_LGT if (use_lgt_col) flgt8(temp_in, temp_out, lgtmtx_col[0]); else #endif ht.cols(temp_in, temp_out); for (j = 0; j < n2; ++j) output[i + j * n] = (temp_out[j] + (temp_out[j] < 0)) >> 1; } // Note: overall scale factor of transform is 8 times unitary } void av1_fht8x4_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct4, fdct8 }, // DCT_DCT { fadst4, fdct8 }, // ADST_DCT { fdct4, fadst8 }, // DCT_ADST { fadst4, fadst8 }, // ADST_ADST #if CONFIG_EXT_TX { fadst4, fdct8 }, // FLIPADST_DCT { fdct4, fadst8 }, // DCT_FLIPADST { fadst4, fadst8 }, // FLIPADST_FLIPADST { fadst4, fadst8 }, // ADST_FLIPADST { fadst4, fadst8 }, // FLIPADST_ADST { fidtx4, fidtx8 }, // IDTX { fdct4, fidtx8 }, // V_DCT { fidtx4, fdct8 }, // H_DCT { fadst4, fidtx8 }, // V_ADST { fidtx4, fadst8 }, // H_ADST { fadst4, fidtx8 }, // V_FLIPADST { fidtx4, fadst8 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 4; const int n2 = 8; tran_low_t out[8 * 4]; tran_low_t temp_in[8], temp_out[8]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[8 * 4]; maybe_flip_input(&input, &stride, n, n2, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_col[1]; const tran_high_t *lgtmtx_row[1]; int use_lgt_col = get_lgt4(txfm_param, 1, lgtmtx_col); int use_lgt_row = get_lgt8(txfm_param, 0, lgtmtx_row); #endif // Columns for (i = 0; i < n2; ++i) { for (j = 0; j < n; ++j) temp_in[j] = (tran_low_t)fdct_round_shift(input[j * stride + i] * 4 * Sqrt2); #if CONFIG_LGT if (use_lgt_col) flgt4(temp_in, temp_out, lgtmtx_col[0]); else #endif ht.cols(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n2 + i] = temp_out[j]; } // Rows for (i = 0; i < n; ++i) { for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2]; #if CONFIG_LGT if (use_lgt_row) flgt8(temp_in, temp_out, lgtmtx_row[0]); else #endif ht.rows(temp_in, temp_out); for (j = 0; j < n2; ++j) output[j + i * n2] = (temp_out[j] + (temp_out[j] < 0)) >> 1; } // Note: overall scale factor of transform is 8 times unitary } void av1_fht4x16_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct16, fdct4 }, // DCT_DCT { fadst16, fdct4 }, // ADST_DCT { fdct16, fadst4 }, // DCT_ADST { fadst16, fadst4 }, // ADST_ADST #if CONFIG_EXT_TX { fadst16, fdct4 }, // FLIPADST_DCT { fdct16, fadst4 }, // DCT_FLIPADST { fadst16, fadst4 }, // FLIPADST_FLIPADST { fadst16, fadst4 }, // ADST_FLIPADST { fadst16, fadst4 }, // FLIPADST_ADST { fidtx16, fidtx4 }, // IDTX { fdct16, fidtx4 }, // V_DCT { fidtx16, fdct4 }, // H_DCT { fadst16, fidtx4 }, // V_ADST { fidtx16, fadst4 }, // H_ADST { fadst16, fidtx4 }, // V_FLIPADST { fidtx16, fadst4 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 4; const int n4 = 16; tran_low_t out[16 * 4]; tran_low_t temp_in[16], temp_out[16]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[16 * 4]; maybe_flip_input(&input, &stride, n4, n, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_row[1]; int use_lgt_row = get_lgt4(txfm_param, 0, lgtmtx_row); #endif // Rows for (i = 0; i < n4; ++i) { for (j = 0; j < n; ++j) temp_in[j] = input[i * stride + j] * 4; #if CONFIG_LGT if (use_lgt_row) flgt4(temp_in, temp_out, lgtmtx_row[0]); else #endif ht.rows(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j]; } // Columns for (i = 0; i < n; ++i) { for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4]; ht.cols(temp_in, temp_out); for (j = 0; j < n4; ++j) output[i + j * n] = (temp_out[j] + (temp_out[j] < 0)) >> 1; } // Note: overall scale factor of transform is 8 times unitary } void av1_fht16x4_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct4, fdct16 }, // DCT_DCT { fadst4, fdct16 }, // ADST_DCT { fdct4, fadst16 }, // DCT_ADST { fadst4, fadst16 }, // ADST_ADST #if CONFIG_EXT_TX { fadst4, fdct16 }, // FLIPADST_DCT { fdct4, fadst16 }, // DCT_FLIPADST { fadst4, fadst16 }, // FLIPADST_FLIPADST { fadst4, fadst16 }, // ADST_FLIPADST { fadst4, fadst16 }, // FLIPADST_ADST { fidtx4, fidtx16 }, // IDTX { fdct4, fidtx16 }, // V_DCT { fidtx4, fdct16 }, // H_DCT { fadst4, fidtx16 }, // V_ADST { fidtx4, fadst16 }, // H_ADST { fadst4, fidtx16 }, // V_FLIPADST { fidtx4, fadst16 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 4; const int n4 = 16; tran_low_t out[16 * 4]; tran_low_t temp_in[16], temp_out[16]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[16 * 4]; maybe_flip_input(&input, &stride, n, n4, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_col[1]; int use_lgt_col = get_lgt4(txfm_param, 1, lgtmtx_col); #endif // Columns for (i = 0; i < n4; ++i) { for (j = 0; j < n; ++j) temp_in[j] = input[j * stride + i] * 4; #if CONFIG_LGT if (use_lgt_col) flgt4(temp_in, temp_out, lgtmtx_col[0]); else #endif ht.cols(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j]; } // Rows for (i = 0; i < n; ++i) { for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4]; ht.rows(temp_in, temp_out); for (j = 0; j < n4; ++j) output[j + i * n4] = (temp_out[j] + (temp_out[j] < 0)) >> 1; } // Note: overall scale factor of transform is 8 times unitary } void av1_fht8x16_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct16, fdct8 }, // DCT_DCT { fadst16, fdct8 }, // ADST_DCT { fdct16, fadst8 }, // DCT_ADST { fadst16, fadst8 }, // ADST_ADST #if CONFIG_EXT_TX { fadst16, fdct8 }, // FLIPADST_DCT { fdct16, fadst8 }, // DCT_FLIPADST { fadst16, fadst8 }, // FLIPADST_FLIPADST { fadst16, fadst8 }, // ADST_FLIPADST { fadst16, fadst8 }, // FLIPADST_ADST { fidtx16, fidtx8 }, // IDTX { fdct16, fidtx8 }, // V_DCT { fidtx16, fdct8 }, // H_DCT { fadst16, fidtx8 }, // V_ADST { fidtx16, fadst8 }, // H_ADST { fadst16, fidtx8 }, // V_FLIPADST { fidtx16, fadst8 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 8; const int n2 = 16; tran_low_t out[16 * 8]; tran_low_t temp_in[16], temp_out[16]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[16 * 8]; maybe_flip_input(&input, &stride, n2, n, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_row[1]; int use_lgt_row = get_lgt8(txfm_param, 0, lgtmtx_row); #endif // Rows for (i = 0; i < n2; ++i) { for (j = 0; j < n; ++j) temp_in[j] = (tran_low_t)fdct_round_shift(input[i * stride + j] * 4 * Sqrt2); #if CONFIG_LGT if (use_lgt_row) flgt8(temp_in, temp_out, lgtmtx_row[0]); else #endif ht.rows(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n2 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); } // Columns for (i = 0; i < n; ++i) { for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2]; ht.cols(temp_in, temp_out); for (j = 0; j < n2; ++j) output[i + j * n] = temp_out[j]; } // Note: overall scale factor of transform is 8 times unitary } void av1_fht16x8_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct8, fdct16 }, // DCT_DCT { fadst8, fdct16 }, // ADST_DCT { fdct8, fadst16 }, // DCT_ADST { fadst8, fadst16 }, // ADST_ADST #if CONFIG_EXT_TX { fadst8, fdct16 }, // FLIPADST_DCT { fdct8, fadst16 }, // DCT_FLIPADST { fadst8, fadst16 }, // FLIPADST_FLIPADST { fadst8, fadst16 }, // ADST_FLIPADST { fadst8, fadst16 }, // FLIPADST_ADST { fidtx8, fidtx16 }, // IDTX { fdct8, fidtx16 }, // V_DCT { fidtx8, fdct16 }, // H_DCT { fadst8, fidtx16 }, // V_ADST { fidtx8, fadst16 }, // H_ADST { fadst8, fidtx16 }, // V_FLIPADST { fidtx8, fadst16 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 8; const int n2 = 16; tran_low_t out[16 * 8]; tran_low_t temp_in[16], temp_out[16]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[16 * 8]; maybe_flip_input(&input, &stride, n, n2, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_col[1]; int use_lgt_col = get_lgt8(txfm_param, 1, lgtmtx_col); #endif // Columns for (i = 0; i < n2; ++i) { for (j = 0; j < n; ++j) temp_in[j] = (tran_low_t)fdct_round_shift(input[j * stride + i] * 4 * Sqrt2); #if CONFIG_LGT if (use_lgt_col) flgt8(temp_in, temp_out, lgtmtx_col[0]); else #endif ht.cols(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n2 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); } // Rows for (i = 0; i < n; ++i) { for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2]; ht.rows(temp_in, temp_out); for (j = 0; j < n2; ++j) output[j + i * n2] = temp_out[j]; } // Note: overall scale factor of transform is 8 times unitary } void av1_fht8x32_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct32, fdct8 }, // DCT_DCT { fhalfright32, fdct8 }, // ADST_DCT { fdct32, fadst8 }, // DCT_ADST { fhalfright32, fadst8 }, // ADST_ADST #if CONFIG_EXT_TX { fhalfright32, fdct8 }, // FLIPADST_DCT { fdct32, fadst8 }, // DCT_FLIPADST { fhalfright32, fadst8 }, // FLIPADST_FLIPADST { fhalfright32, fadst8 }, // ADST_FLIPADST { fhalfright32, fadst8 }, // FLIPADST_ADST { fidtx32, fidtx8 }, // IDTX { fdct32, fidtx8 }, // V_DCT { fidtx32, fdct8 }, // H_DCT { fhalfright32, fidtx8 }, // V_ADST { fidtx32, fadst8 }, // H_ADST { fhalfright32, fidtx8 }, // V_FLIPADST { fidtx32, fadst8 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 8; const int n4 = 32; tran_low_t out[32 * 8]; tran_low_t temp_in[32], temp_out[32]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[32 * 8]; maybe_flip_input(&input, &stride, n4, n, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_row[1]; int use_lgt_row = get_lgt8(txfm_param, 0, lgtmtx_row); #endif // Rows for (i = 0; i < n4; ++i) { for (j = 0; j < n; ++j) temp_in[j] = input[i * stride + j] * 4; #if CONFIG_LGT if (use_lgt_row) flgt8(temp_in, temp_out, lgtmtx_row[0]); else #endif ht.rows(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j]; } // Columns for (i = 0; i < n; ++i) { for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4]; ht.cols(temp_in, temp_out); for (j = 0; j < n4; ++j) output[i + j * n] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); } // Note: overall scale factor of transform is 8 times unitary } void av1_fht32x8_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct8, fdct32 }, // DCT_DCT { fadst8, fdct32 }, // ADST_DCT { fdct8, fhalfright32 }, // DCT_ADST { fadst8, fhalfright32 }, // ADST_ADST #if CONFIG_EXT_TX { fadst8, fdct32 }, // FLIPADST_DCT { fdct8, fhalfright32 }, // DCT_FLIPADST { fadst8, fhalfright32 }, // FLIPADST_FLIPADST { fadst8, fhalfright32 }, // ADST_FLIPADST { fadst8, fhalfright32 }, // FLIPADST_ADST { fidtx8, fidtx32 }, // IDTX { fdct8, fidtx32 }, // V_DCT { fidtx8, fdct32 }, // H_DCT { fadst8, fidtx32 }, // V_ADST { fidtx8, fhalfright32 }, // H_ADST { fadst8, fidtx32 }, // V_FLIPADST { fidtx8, fhalfright32 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 8; const int n4 = 32; tran_low_t out[32 * 8]; tran_low_t temp_in[32], temp_out[32]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[32 * 8]; maybe_flip_input(&input, &stride, n, n4, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_col[1]; int use_lgt_col = get_lgt8(txfm_param, 1, lgtmtx_col); #endif // Columns for (i = 0; i < n4; ++i) { for (j = 0; j < n; ++j) temp_in[j] = input[j * stride + i] * 4; #if CONFIG_LGT if (use_lgt_col) flgt8(temp_in, temp_out, lgtmtx_col[0]); else #endif ht.cols(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j]; } // Rows for (i = 0; i < n; ++i) { for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4]; ht.rows(temp_in, temp_out); for (j = 0; j < n4; ++j) output[j + i * n4] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); } // Note: overall scale factor of transform is 8 times unitary } void av1_fht16x32_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct32, fdct16 }, // DCT_DCT { fhalfright32, fdct16 }, // ADST_DCT { fdct32, fadst16 }, // DCT_ADST { fhalfright32, fadst16 }, // ADST_ADST #if CONFIG_EXT_TX { fhalfright32, fdct16 }, // FLIPADST_DCT { fdct32, fadst16 }, // DCT_FLIPADST { fhalfright32, fadst16 }, // FLIPADST_FLIPADST { fhalfright32, fadst16 }, // ADST_FLIPADST { fhalfright32, fadst16 }, // FLIPADST_ADST { fidtx32, fidtx16 }, // IDTX { fdct32, fidtx16 }, // V_DCT { fidtx32, fdct16 }, // H_DCT { fhalfright32, fidtx16 }, // V_ADST { fidtx32, fadst16 }, // H_ADST { fhalfright32, fidtx16 }, // V_FLIPADST { fidtx32, fadst16 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 16; const int n2 = 32; tran_low_t out[32 * 16]; tran_low_t temp_in[32], temp_out[32]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[32 * 16]; maybe_flip_input(&input, &stride, n2, n, flipped_input, tx_type); #endif // Rows for (i = 0; i < n2; ++i) { for (j = 0; j < n; ++j) temp_in[j] = (tran_low_t)fdct_round_shift(input[i * stride + j] * 4 * Sqrt2); ht.rows(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n2 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 4); } // Columns for (i = 0; i < n; ++i) { for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2]; ht.cols(temp_in, temp_out); for (j = 0; j < n2; ++j) output[i + j * n] = temp_out[j]; } // Note: overall scale factor of transform is 4 times unitary } void av1_fht32x16_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct16, fdct32 }, // DCT_DCT { fadst16, fdct32 }, // ADST_DCT { fdct16, fhalfright32 }, // DCT_ADST { fadst16, fhalfright32 }, // ADST_ADST #if CONFIG_EXT_TX { fadst16, fdct32 }, // FLIPADST_DCT { fdct16, fhalfright32 }, // DCT_FLIPADST { fadst16, fhalfright32 }, // FLIPADST_FLIPADST { fadst16, fhalfright32 }, // ADST_FLIPADST { fadst16, fhalfright32 }, // FLIPADST_ADST { fidtx16, fidtx32 }, // IDTX { fdct16, fidtx32 }, // V_DCT { fidtx16, fdct32 }, // H_DCT { fadst16, fidtx32 }, // V_ADST { fidtx16, fhalfright32 }, // H_ADST { fadst16, fidtx32 }, // V_FLIPADST { fidtx16, fhalfright32 }, // H_FLIPADST #endif }; const transform_2d ht = FHT[tx_type]; const int n = 16; const int n2 = 32; tran_low_t out[32 * 16]; tran_low_t temp_in[32], temp_out[32]; int i, j; #if CONFIG_EXT_TX int16_t flipped_input[32 * 16]; maybe_flip_input(&input, &stride, n, n2, flipped_input, tx_type); #endif // Columns for (i = 0; i < n2; ++i) { for (j = 0; j < n; ++j) temp_in[j] = (tran_low_t)fdct_round_shift(input[j * stride + i] * 4 * Sqrt2); ht.cols(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n2 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 4); } // Rows for (i = 0; i < n; ++i) { for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2]; ht.rows(temp_in, temp_out); for (j = 0; j < n2; ++j) output[j + i * n2] = temp_out[j]; } // Note: overall scale factor of transform is 4 times unitary } void av1_fht8x8_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif #if !CONFIG_DAALA_DCT8 if (tx_type == DCT_DCT) { aom_fdct8x8_c(input, output, stride); return; } #endif { static const transform_2d FHT[] = { #if CONFIG_DAALA_DCT8 { daala_fdct8, daala_fdct8 }, // DCT_DCT { daala_fdst8, daala_fdct8 }, // ADST_DCT { daala_fdct8, daala_fdst8 }, // DCT_ADST { daala_fdst8, daala_fdst8 }, // ADST_ADST #if CONFIG_EXT_TX { daala_fdst8, daala_fdct8 }, // FLIPADST_DCT { daala_fdct8, daala_fdst8 }, // DCT_FLIPADST { daala_fdst8, daala_fdst8 }, // FLIPADST_FLIPADST { daala_fdst8, daala_fdst8 }, // ADST_FLIPADST { daala_fdst8, daala_fdst8 }, // FLIPADST_ADST { daala_idtx8, daala_idtx8 }, // IDTX { daala_fdct8, daala_idtx8 }, // V_DCT { daala_idtx8, daala_fdct8 }, // H_DCT { daala_fdst8, daala_idtx8 }, // V_ADST { daala_idtx8, daala_fdst8 }, // H_ADST { daala_fdst8, daala_idtx8 }, // V_FLIPADST { daala_idtx8, daala_fdst8 }, // H_FLIPADST #endif #else { fdct8, fdct8 }, // DCT_DCT { fadst8, fdct8 }, // ADST_DCT { fdct8, fadst8 }, // DCT_ADST { fadst8, fadst8 }, // ADST_ADST #if CONFIG_EXT_TX { fadst8, fdct8 }, // FLIPADST_DCT { fdct8, fadst8 }, // DCT_FLIPADST { fadst8, fadst8 }, // FLIPADST_FLIPADST { fadst8, fadst8 }, // ADST_FLIPADST { fadst8, fadst8 }, // FLIPADST_ADST { fidtx8, fidtx8 }, // IDTX { fdct8, fidtx8 }, // V_DCT { fidtx8, fdct8 }, // H_DCT { fadst8, fidtx8 }, // V_ADST { fidtx8, fadst8 }, // H_ADST { fadst8, fidtx8 }, // V_FLIPADST { fidtx8, fadst8 }, // H_FLIPADST #endif #endif }; const transform_2d ht = FHT[tx_type]; tran_low_t out[64]; int i, j; tran_low_t temp_in[8], temp_out[8]; #if CONFIG_EXT_TX int16_t flipped_input[8 * 8]; maybe_flip_input(&input, &stride, 8, 8, flipped_input, tx_type); #endif #if CONFIG_LGT const tran_high_t *lgtmtx_col[1]; const tran_high_t *lgtmtx_row[1]; int use_lgt_col = get_lgt8(txfm_param, 1, lgtmtx_col); int use_lgt_row = get_lgt8(txfm_param, 0, lgtmtx_row); #endif // Columns for (i = 0; i < 8; ++i) { #if CONFIG_DAALA_DCT8 for (j = 0; j < 8; ++j) temp_in[j] = input[j * stride + i] * 16; #else for (j = 0; j < 8; ++j) temp_in[j] = input[j * stride + i] * 4; #endif #if CONFIG_LGT if (use_lgt_col) flgt8(temp_in, temp_out, lgtmtx_col[0]); else #endif ht.cols(temp_in, temp_out); for (j = 0; j < 8; ++j) out[j * 8 + i] = temp_out[j]; } // Rows for (i = 0; i < 8; ++i) { for (j = 0; j < 8; ++j) temp_in[j] = out[j + i * 8]; #if CONFIG_LGT if (use_lgt_row) flgt8(temp_in, temp_out, lgtmtx_row[0]); else #endif ht.rows(temp_in, temp_out); #if CONFIG_DAALA_DCT8 for (j = 0; j < 8; ++j) output[j + i * 8] = (temp_out[j] + (temp_out[j] < 0)) >> 1; #else for (j = 0; j < 8; ++j) output[j + i * 8] = (temp_out[j] + (temp_out[j] < 0)) >> 1; #endif } } } /* 4-point reversible, orthonormal Walsh-Hadamard in 3.5 adds, 0.5 shifts per pixel. */ void av1_fwht4x4_c(const int16_t *input, tran_low_t *output, int stride) { int i; tran_high_t a1, b1, c1, d1, e1; const int16_t *ip_pass0 = input; const tran_low_t *ip = NULL; tran_low_t *op = output; for (i = 0; i < 4; i++) { a1 = ip_pass0[0 * stride]; b1 = ip_pass0[1 * stride]; c1 = ip_pass0[2 * stride]; d1 = ip_pass0[3 * stride]; a1 += b1; d1 = d1 - c1; e1 = (a1 - d1) >> 1; b1 = e1 - b1; c1 = e1 - c1; a1 -= c1; d1 += b1; op[0] = (tran_low_t)a1; op[4] = (tran_low_t)c1; op[8] = (tran_low_t)d1; op[12] = (tran_low_t)b1; ip_pass0++; op++; } ip = output; op = output; for (i = 0; i < 4; i++) { a1 = ip[0]; b1 = ip[1]; c1 = ip[2]; d1 = ip[3]; a1 += b1; d1 -= c1; e1 = (a1 - d1) >> 1; b1 = e1 - b1; c1 = e1 - c1; a1 -= c1; d1 += b1; op[0] = (tran_low_t)(a1 * UNIT_QUANT_FACTOR); op[1] = (tran_low_t)(c1 * UNIT_QUANT_FACTOR); op[2] = (tran_low_t)(d1 * UNIT_QUANT_FACTOR); op[3] = (tran_low_t)(b1 * UNIT_QUANT_FACTOR); ip += 4; op += 4; } } void av1_fht16x16_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { #if CONFIG_DAALA_DCT16 { daala_fdct16, daala_fdct16 }, // DCT_DCT { daala_fdst16, daala_fdct16 }, // ADST_DCT { daala_fdct16, daala_fdst16 }, // DCT_ADST { daala_fdst16, daala_fdst16 }, // ADST_ADST #if CONFIG_EXT_TX { daala_fdst16, daala_fdct16 }, // FLIPADST_DCT { daala_fdct16, daala_fdst16 }, // DCT_FLIPADST { daala_fdst16, daala_fdst16 }, // FLIPADST_FLIPADST { daala_fdst16, daala_fdst16 }, // ADST_FLIPADST { daala_fdst16, daala_fdst16 }, // FLIPADST_ADST { daala_idtx16, daala_idtx16 }, // IDTX { daala_fdct16, daala_idtx16 }, // V_DCT { daala_idtx16, daala_fdct16 }, // H_DCT { daala_fdst16, daala_idtx16 }, // V_ADST { daala_idtx16, daala_fdst16 }, // H_ADST { daala_fdst16, daala_idtx16 }, // V_FLIPADST { daala_idtx16, daala_fdst16 }, // H_FLIPADST #endif #else { fdct16, fdct16 }, // DCT_DCT { fadst16, fdct16 }, // ADST_DCT { fdct16, fadst16 }, // DCT_ADST { fadst16, fadst16 }, // ADST_ADST #if CONFIG_EXT_TX { fadst16, fdct16 }, // FLIPADST_DCT { fdct16, fadst16 }, // DCT_FLIPADST { fadst16, fadst16 }, // FLIPADST_FLIPADST { fadst16, fadst16 }, // ADST_FLIPADST { fadst16, fadst16 }, // FLIPADST_ADST { fidtx16, fidtx16 }, // IDTX { fdct16, fidtx16 }, // V_DCT { fidtx16, fdct16 }, // H_DCT { fadst16, fidtx16 }, // V_ADST { fidtx16, fadst16 }, // H_ADST { fadst16, fidtx16 }, // V_FLIPADST { fidtx16, fadst16 }, // H_FLIPADST #endif #endif }; const transform_2d ht = FHT[tx_type]; tran_low_t out[256]; int i, j; tran_low_t temp_in[16], temp_out[16]; #if CONFIG_EXT_TX int16_t flipped_input[16 * 16]; maybe_flip_input(&input, &stride, 16, 16, flipped_input, tx_type); #endif // Columns for (i = 0; i < 16; ++i) { for (j = 0; j < 16; ++j) { #if CONFIG_DAALA_DCT16 temp_in[j] = input[j * stride + i] * 16; #else temp_in[j] = input[j * stride + i] * 4; #endif } ht.cols(temp_in, temp_out); for (j = 0; j < 16; ++j) { #if CONFIG_DAALA_DCT16 out[j * 16 + i] = temp_out[j]; #else out[j * 16 + i] = (temp_out[j] + 1 + (temp_out[j] < 0)) >> 2; #endif } } // Rows for (i = 0; i < 16; ++i) { for (j = 0; j < 16; ++j) temp_in[j] = out[j + i * 16]; ht.rows(temp_in, temp_out); for (j = 0; j < 16; ++j) { #if CONFIG_DAALA_DCT16 output[j + i * 16] = (temp_out[j] + (temp_out[j] < 0)) >> 1; #else output[j + i * 16] = temp_out[j]; #endif } } } void av1_highbd_fwht4x4_c(const int16_t *input, tran_low_t *output, int stride) { av1_fwht4x4_c(input, output, stride); } void av1_fht32x32_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { #if CONFIG_DAALA_DCT32 { daala_fdct32, daala_fdct32 }, // DCT_DCT #if CONFIG_EXT_TX { daala_fdst32, daala_fdct32 }, // ADST_DCT { daala_fdct32, daala_fdst32 }, // DCT_ADST { daala_fdst32, daala_fdst32 }, // ADST_ADST { daala_fdst32, daala_fdct32 }, // FLIPADST_DCT { daala_fdct32, daala_fdst32 }, // DCT_FLIPADST { daala_fdst32, daala_fdst32 }, // FLIPADST_FLIPADST { daala_fdst32, daala_fdst32 }, // ADST_FLIPADST { daala_fdst32, daala_fdst32 }, // FLIPADST_ADST { daala_idtx32, daala_idtx32 }, // IDTX { daala_fdct32, daala_idtx32 }, // V_DCT { daala_idtx32, daala_fdct32 }, // H_DCT { daala_fdst32, daala_idtx32 }, // V_ADST { daala_idtx32, daala_fdst32 }, // H_ADST { daala_fdst32, daala_idtx32 }, // V_FLIPADST { daala_idtx32, daala_fdst32 }, // H_FLIPADST #endif #else { fdct32, fdct32 }, // DCT_DCT #if CONFIG_EXT_TX { fhalfright32, fdct32 }, // ADST_DCT { fdct32, fhalfright32 }, // DCT_ADST { fhalfright32, fhalfright32 }, // ADST_ADST { fhalfright32, fdct32 }, // FLIPADST_DCT { fdct32, fhalfright32 }, // DCT_FLIPADST { fhalfright32, fhalfright32 }, // FLIPADST_FLIPADST { fhalfright32, fhalfright32 }, // ADST_FLIPADST { fhalfright32, fhalfright32 }, // FLIPADST_ADST { fidtx32, fidtx32 }, // IDTX { fdct32, fidtx32 }, // V_DCT { fidtx32, fdct32 }, // H_DCT { fhalfright32, fidtx32 }, // V_ADST { fidtx32, fhalfright32 }, // H_ADST { fhalfright32, fidtx32 }, // V_FLIPADST { fidtx32, fhalfright32 }, // H_FLIPADST #endif #endif #if CONFIG_MRC_TX { fdct32, fdct32 }, // MRC_TX #endif // CONFIG_MRC_TX }; const transform_2d ht = FHT[tx_type]; tran_low_t out[1024]; int i, j; tran_low_t temp_in[32], temp_out[32]; #if CONFIG_EXT_TX int16_t flipped_input[32 * 32]; maybe_flip_input(&input, &stride, 32, 32, flipped_input, tx_type); #endif #if CONFIG_MRC_TX if (tx_type == MRC_DCT) { int16_t masked_input[32 * 32]; get_masked_residual32(&input, &stride, txfm_param->dst, txfm_param->stride, masked_input, txfm_param); } #endif // CONFIG_MRC_TX // Columns for (i = 0; i < 32; ++i) { for (j = 0; j < 32; ++j) { #if CONFIG_DAALA_DCT32 temp_in[j] = input[j * stride + i] * 16; #else temp_in[j] = input[j * stride + i] * 4; #endif } ht.cols(temp_in, temp_out); for (j = 0; j < 32; ++j) { #if CONFIG_DAALA_DCT32 out[j * 32 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); #else out[j * 32 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 4); #endif } } // Rows for (i = 0; i < 32; ++i) { for (j = 0; j < 32; ++j) temp_in[j] = out[j + i * 32]; ht.rows(temp_in, temp_out); for (j = 0; j < 32; ++j) { output[j + i * 32] = temp_out[j]; } } } #if CONFIG_TX64X64 #if !CONFIG_DAALA_DCT64 #if CONFIG_EXT_TX static void fidtx64(const tran_low_t *input, tran_low_t *output) { int i; for (i = 0; i < 64; ++i) output[i] = (tran_low_t)fdct_round_shift(input[i] * 4 * Sqrt2); } // For use in lieu of ADST static void fhalfright64(const tran_low_t *input, tran_low_t *output) { int i; tran_low_t inputhalf[32]; for (i = 0; i < 32; ++i) { output[32 + i] = (tran_low_t)fdct_round_shift(input[i] * 4 * Sqrt2); } // Multiply input by sqrt(2) for (i = 0; i < 32; ++i) { inputhalf[i] = (tran_low_t)fdct_round_shift(input[i + 32] * Sqrt2); } fdct32(inputhalf, output); // Note overall scaling factor is 2 times unitary } #endif // CONFIG_EXT_TX static void fdct64_col(const tran_low_t *input, tran_low_t *output) { int32_t in[64], out[64]; int i; for (i = 0; i < 64; ++i) in[i] = (int32_t)input[i]; av1_fdct64_new(in, out, fwd_cos_bit_col_dct_64, fwd_stage_range_col_dct_64); for (i = 0; i < 64; ++i) output[i] = (tran_low_t)out[i]; } static void fdct64_row(const tran_low_t *input, tran_low_t *output) { int32_t in[64], out[64]; int i; for (i = 0; i < 64; ++i) in[i] = (int32_t)input[i]; av1_fdct64_new(in, out, fwd_cos_bit_row_dct_64, fwd_stage_range_row_dct_64); for (i = 0; i < 64; ++i) output[i] = (tran_low_t)out[i]; } #endif void av1_fht64x64_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { #if CONFIG_DAALA_DCT64 { daala_fdct64, daala_fdct64 }, // DCT_DCT #if CONFIG_EXT_TX { daala_fdst64, daala_fdct64 }, // ADST_DCT { daala_fdct64, daala_fdst64 }, // DCT_ADST { daala_fdst64, daala_fdst64 }, // ADST_ADST { daala_fdst64, daala_fdct64 }, // FLIPADST_DCT { daala_fdct64, daala_fdst64 }, // DCT_FLIPADST { daala_fdst64, daala_fdst64 }, // FLIPADST_FLIPADST { daala_fdst64, daala_fdst64 }, // ADST_FLIPADST { daala_fdst64, daala_fdst64 }, // FLIPADST_ADST { daala_idtx64, daala_idtx64 }, // IDTX { daala_fdct64, daala_idtx64 }, // V_DCT { daala_idtx64, daala_fdct64 }, // H_DCT { daala_fdst64, daala_idtx64 }, // V_ADST { daala_idtx64, daala_fdst64 }, // H_ADST { daala_fdst64, daala_idtx64 }, // V_FLIPADST { daala_idtx64, daala_fdst64 }, // H_FLIPADST #endif // CONFIG_EXT_TX #else { fdct64_col, fdct64_row }, // DCT_DCT #if CONFIG_EXT_TX { fhalfright64, fdct64_row }, // ADST_DCT { fdct64_col, fhalfright64 }, // DCT_ADST { fhalfright64, fhalfright64 }, // ADST_ADST { fhalfright64, fdct64_row }, // FLIPADST_DCT { fdct64_col, fhalfright64 }, // DCT_FLIPADST { fhalfright64, fhalfright64 }, // FLIPADST_FLIPADST { fhalfright64, fhalfright64 }, // ADST_FLIPADST { fhalfright64, fhalfright64 }, // FLIPADST_ADST { fidtx64, fidtx64 }, // IDTX { fdct64_col, fidtx64 }, // V_DCT { fidtx64, fdct64_row }, // H_DCT { fhalfright64, fidtx64 }, // V_ADST { fidtx64, fhalfright64 }, // H_ADST { fhalfright64, fidtx64 }, // V_FLIPADST { fidtx64, fhalfright64 }, // H_FLIPADST #endif // CONFIG_EXT_TX #endif // CONFIG_DAALA_DCT64 }; const transform_2d ht = FHT[tx_type]; tran_low_t out[4096]; int i, j; tran_low_t temp_in[64], temp_out[64]; #if CONFIG_EXT_TX int16_t flipped_input[64 * 64]; maybe_flip_input(&input, &stride, 64, 64, flipped_input, tx_type); #endif // Columns for (i = 0; i < 64; ++i) { #if CONFIG_DAALA_DCT64 for (j = 0; j < 64; ++j) temp_in[j] = input[j * stride + i] * 16; ht.cols(temp_in, temp_out); for (j = 0; j < 64; ++j) out[j * 64 + i] = (temp_out[j] + 1 + (temp_out[j] > 0)) >> 3; #else for (j = 0; j < 64; ++j) temp_in[j] = input[j * stride + i]; ht.cols(temp_in, temp_out); for (j = 0; j < 64; ++j) out[j * 64 + i] = (temp_out[j] + 1 + (temp_out[j] > 0)) >> 2; #endif } // Rows for (i = 0; i < 64; ++i) { for (j = 0; j < 64; ++j) temp_in[j] = out[j + i * 64]; ht.rows(temp_in, temp_out); for (j = 0; j < 64; ++j) #if CONFIG_DAALA_DCT64 output[j + i * 64] = temp_out[j]; #else output[j + i * 64] = (tran_low_t)((temp_out[j] + 1 + (temp_out[j] < 0)) >> 2); #endif } } void av1_fht64x32_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct32, fdct64_row }, // DCT_DCT #if CONFIG_EXT_TX { fhalfright32, fdct64_row }, // ADST_DCT { fdct32, fhalfright64 }, // DCT_ADST { fhalfright32, fhalfright64 }, // ADST_ADST { fhalfright32, fdct64_row }, // FLIPADST_DCT { fdct32, fhalfright64 }, // DCT_FLIPADST { fhalfright32, fhalfright64 }, // FLIPADST_FLIPADST { fhalfright32, fhalfright64 }, // ADST_FLIPADST { fhalfright32, fhalfright64 }, // FLIPADST_ADST { fidtx32, fidtx64 }, // IDTX { fdct32, fidtx64 }, // V_DCT { fidtx32, fdct64_row }, // H_DCT { fhalfright32, fidtx64 }, // V_ADST { fidtx32, fhalfright64 }, // H_ADST { fhalfright32, fidtx64 }, // V_FLIPADST { fidtx32, fhalfright64 }, // H_FLIPADST #endif // CONFIG_EXT_TX }; const transform_2d ht = FHT[tx_type]; tran_low_t out[2048]; int i, j; tran_low_t temp_in[64], temp_out[64]; const int n = 32; const int n2 = 64; #if CONFIG_EXT_TX int16_t flipped_input[32 * 64]; maybe_flip_input(&input, &stride, n, n2, flipped_input, tx_type); #endif // Columns for (i = 0; i < n2; ++i) { for (j = 0; j < n; ++j) temp_in[j] = (tran_low_t)fdct_round_shift(input[j * stride + i] * Sqrt2); ht.cols(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n2 + i] = (tran_low_t)ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); } // Rows for (i = 0; i < n; ++i) { for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2]; ht.rows(temp_in, temp_out); for (j = 0; j < n2; ++j) output[j + i * n2] = (tran_low_t)ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); } } void av1_fht32x64_c(const int16_t *input, tran_low_t *output, int stride, TxfmParam *txfm_param) { const TX_TYPE tx_type = txfm_param->tx_type; #if CONFIG_MRC_TX assert(tx_type != MRC_DCT && "Invalid tx type for tx size"); #endif // CONFIG_MRC_TX #if CONFIG_DCT_ONLY assert(tx_type == DCT_DCT); #endif static const transform_2d FHT[] = { { fdct64_row, fdct32 }, // DCT_DCT #if CONFIG_EXT_TX { fhalfright64, fdct32 }, // ADST_DCT { fdct64_row, fhalfright32 }, // DCT_ADST { fhalfright64, fhalfright32 }, // ADST_ADST { fhalfright64, fdct32 }, // FLIPADST_DCT { fdct64_row, fhalfright32 }, // DCT_FLIPADST { fhalfright64, fhalfright32 }, // FLIPADST_FLIPADST { fhalfright64, fhalfright32 }, // ADST_FLIPADST { fhalfright64, fhalfright32 }, // FLIPADST_ADST { fidtx64, fidtx32 }, // IDTX { fdct64_row, fidtx32 }, // V_DCT { fidtx64, fdct32 }, // H_DCT { fhalfright64, fidtx32 }, // V_ADST { fidtx64, fhalfright32 }, // H_ADST { fhalfright64, fidtx32 }, // V_FLIPADST { fidtx64, fhalfright32 }, // H_FLIPADST #endif // CONFIG_EXT_TX }; const transform_2d ht = FHT[tx_type]; tran_low_t out[32 * 64]; int i, j; tran_low_t temp_in[64], temp_out[64]; const int n = 32; const int n2 = 64; #if CONFIG_EXT_TX int16_t flipped_input[32 * 64]; maybe_flip_input(&input, &stride, n2, n, flipped_input, tx_type); #endif // Rows for (i = 0; i < n2; ++i) { for (j = 0; j < n; ++j) temp_in[j] = (tran_low_t)fdct_round_shift(input[i * stride + j] * Sqrt2); ht.rows(temp_in, temp_out); for (j = 0; j < n; ++j) out[j * n2 + i] = (tran_low_t)ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); } // Columns for (i = 0; i < n; ++i) { for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2]; ht.cols(temp_in, temp_out); for (j = 0; j < n2; ++j) output[i + j * n] = (tran_low_t)ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2); } } #endif // CONFIG_TX64X64 #if CONFIG_EXT_TX // Forward identity transform. void av1_fwd_idtx_c(const int16_t *src_diff, tran_low_t *coeff, int stride, int bsx, int bsy, TX_TYPE tx_type) { int r, c; const int pels = bsx * bsy; const int shift = 3 - ((pels > 256) + (pels > 1024)); if (tx_type == IDTX) { for (r = 0; r < bsy; ++r) { for (c = 0; c < bsx; ++c) coeff[c] = src_diff[c] * (1 << shift); src_diff += stride; coeff += bsx; } } } #endif // CONFIG_EXT_TX #endif // !AV1_DCT_GTEST