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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/aom/av1/encoder/av1_fwd_txfm2d.c | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | third_party/aom/av1/encoder/av1_fwd_txfm2d.c | 423 |
1 files changed, 423 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/av1_fwd_txfm2d.c b/third_party/aom/av1/encoder/av1_fwd_txfm2d.c new file mode 100644 index 0000000000..12a9535a7c --- /dev/null +++ b/third_party/aom/av1/encoder/av1_fwd_txfm2d.c @@ -0,0 +1,423 @@ +/* + * 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 <assert.h> + +#include "config/aom_dsp_rtcd.h" +#include "config/av1_rtcd.h" + +#include "aom_dsp/txfm_common.h" +#include "av1/common/enums.h" +#include "av1/common/av1_txfm.h" +#include "av1/encoder/av1_fwd_txfm1d.h" +#include "av1/encoder/av1_fwd_txfm1d_cfg.h" + +static INLINE TxfmFunc fwd_txfm_type_to_func(TXFM_TYPE txfm_type) { + switch (txfm_type) { + case TXFM_TYPE_DCT4: return av1_fdct4; + case TXFM_TYPE_DCT8: return av1_fdct8; + case TXFM_TYPE_DCT16: return av1_fdct16; + case TXFM_TYPE_DCT32: return av1_fdct32; + case TXFM_TYPE_DCT64: return av1_fdct64; + case TXFM_TYPE_ADST4: return av1_fadst4; + case TXFM_TYPE_ADST8: return av1_fadst8; + case TXFM_TYPE_ADST16: return av1_fadst16; + case TXFM_TYPE_IDENTITY4: return av1_fidentity4_c; + case TXFM_TYPE_IDENTITY8: return av1_fidentity8_c; + case TXFM_TYPE_IDENTITY16: return av1_fidentity16_c; + case TXFM_TYPE_IDENTITY32: return av1_fidentity32_c; + default: assert(0); return NULL; + } +} + +void av1_gen_fwd_stage_range(int8_t *stage_range_col, int8_t *stage_range_row, + const TXFM_2D_FLIP_CFG *cfg, int bd) { + // Take the shift from the larger dimension in the rectangular case. + const int8_t *shift = cfg->shift; + // i < MAX_TXFM_STAGE_NUM will mute above array bounds warning + for (int i = 0; i < cfg->stage_num_col && i < MAX_TXFM_STAGE_NUM; ++i) { + stage_range_col[i] = cfg->stage_range_col[i] + shift[0] + bd + 1; + } + + // i < MAX_TXFM_STAGE_NUM will mute above array bounds warning + for (int i = 0; i < cfg->stage_num_row && i < MAX_TXFM_STAGE_NUM; ++i) { + stage_range_row[i] = cfg->stage_range_row[i] + shift[0] + shift[1] + bd + 1; + } +} + +static INLINE void fwd_txfm2d_c(const int16_t *input, int32_t *output, + const int stride, const TXFM_2D_FLIP_CFG *cfg, + int32_t *buf, int bd) { + int c, r; + // Note when assigning txfm_size_col, we use the txfm_size from the + // row configuration and vice versa. This is intentionally done to + // accurately perform rectangular transforms. When the transform is + // rectangular, the number of columns will be the same as the + // txfm_size stored in the row cfg struct. It will make no difference + // for square transforms. + const int txfm_size_col = tx_size_wide[cfg->tx_size]; + const int txfm_size_row = tx_size_high[cfg->tx_size]; + // Take the shift from the larger dimension in the rectangular case. + const int8_t *shift = cfg->shift; + const int rect_type = get_rect_tx_log_ratio(txfm_size_col, txfm_size_row); + int8_t stage_range_col[MAX_TXFM_STAGE_NUM]; + int8_t stage_range_row[MAX_TXFM_STAGE_NUM]; + assert(cfg->stage_num_col <= MAX_TXFM_STAGE_NUM); + assert(cfg->stage_num_row <= MAX_TXFM_STAGE_NUM); + av1_gen_fwd_stage_range(stage_range_col, stage_range_row, cfg, bd); + + const int8_t cos_bit_col = cfg->cos_bit_col; + const int8_t cos_bit_row = cfg->cos_bit_row; + const TxfmFunc txfm_func_col = fwd_txfm_type_to_func(cfg->txfm_type_col); + const TxfmFunc txfm_func_row = fwd_txfm_type_to_func(cfg->txfm_type_row); + + // use output buffer as temp buffer + int32_t *temp_in = output; + int32_t *temp_out = output + txfm_size_row; + + // Columns + for (c = 0; c < txfm_size_col; ++c) { + if (cfg->ud_flip == 0) { + for (r = 0; r < txfm_size_row; ++r) temp_in[r] = input[r * stride + c]; + } else { + for (r = 0; r < txfm_size_row; ++r) + // flip upside down + temp_in[r] = input[(txfm_size_row - r - 1) * stride + c]; + } + av1_round_shift_array(temp_in, txfm_size_row, -shift[0]); + txfm_func_col(temp_in, temp_out, cos_bit_col, stage_range_col); + av1_round_shift_array(temp_out, txfm_size_row, -shift[1]); + if (cfg->lr_flip == 0) { + for (r = 0; r < txfm_size_row; ++r) + buf[r * txfm_size_col + c] = temp_out[r]; + } else { + for (r = 0; r < txfm_size_row; ++r) + // flip from left to right + buf[r * txfm_size_col + (txfm_size_col - c - 1)] = temp_out[r]; + } + } + + DECLARE_ALIGNED(16, int32_t, row_buffer[MAX_TX_SIZE]); + + // Rows + for (r = 0; r < txfm_size_row; ++r) { + txfm_func_row(buf + r * txfm_size_col, row_buffer, cos_bit_row, + stage_range_row); + av1_round_shift_array(row_buffer, txfm_size_col, -shift[2]); + if (abs(rect_type) == 1) { + // Multiply everything by Sqrt2 if the transform is rectangular and the + // size difference is a factor of 2. + for (c = 0; c < txfm_size_col; ++c) { + row_buffer[c] = + round_shift((int64_t)row_buffer[c] * NewSqrt2, NewSqrt2Bits); + } + } + for (c = 0; c < txfm_size_col; ++c) { + output[c * txfm_size_row + r] = row_buffer[c]; + } + } +} + +void av1_fwd_txfm2d_4x8_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + DECLARE_ALIGNED(32, int32_t, txfm_buf[4 * 8]); + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_4X8, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_8x4_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[8 * 4]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_8X4, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_8x16_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + DECLARE_ALIGNED(32, int32_t, txfm_buf[8 * 16]); + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_8X16, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_16x8_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[16 * 8]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_16X8, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_16x32_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + DECLARE_ALIGNED(32, int32_t, txfm_buf[16 * 32]); + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_16X32, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_32x16_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[32 * 16]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_32X16, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_4x16_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + DECLARE_ALIGNED(32, int32_t, txfm_buf[4 * 16]); + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_4X16, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_16x4_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[16 * 4]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_16X4, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_8x32_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + DECLARE_ALIGNED(32, int32_t, txfm_buf[32 * 8]); + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_8X32, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_32x8_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[32 * 8]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_32X8, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_4x4_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[4 * 4]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_4X4, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_8x8_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[8 * 8]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_8X8, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_16x16_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[16 * 16]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_16X16, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_32x32_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[32 * 32]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_32X32, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); +} + +void av1_fwd_txfm2d_64x64_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[64 * 64]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_64X64, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); + + // Zero out top-right 32x32 area. + for (int col = 0; col < 32; ++col) { + memset(output + col * 64 + 32, 0, 32 * sizeof(*output)); + } + // Zero out the bottom 64x32 area. + memset(output + 32 * 64, 0, 32 * 64 * sizeof(*output)); + // Re-pack non-zero coeffs in the first 32x32 indices. + for (int col = 1; col < 32; ++col) { + memcpy(output + col * 32, output + col * 64, 32 * sizeof(*output)); + } +} + +void av1_fwd_txfm2d_32x64_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + DECLARE_ALIGNED(32, int32_t, txfm_buf[32 * 64]); + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_32X64, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); + // Zero out right 32x32 area. + for (int col = 0; col < 32; ++col) { + memset(output + col * 64 + 32, 0, 32 * sizeof(*output)); + } + // Re-pack non-zero coeffs in the first 32x32 indices. + for (int col = 1; col < 32; ++col) { + memcpy(output + col * 32, output + col * 64, 32 * sizeof(*output)); + } +} + +void av1_fwd_txfm2d_64x32_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[64 * 32]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_64X32, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); + // Zero out the bottom 32x32 area. + memset(output + 32 * 32, 0, 32 * 32 * sizeof(*output)); + // Note: no repacking needed here. +} + +void av1_fwd_txfm2d_16x64_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + DECLARE_ALIGNED(32, int32_t, txfm_buf[64 * 16]); + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_16X64, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); + // Zero out right 32x16 area. + for (int row = 0; row < 16; ++row) { + memset(output + row * 64 + 32, 0, 32 * sizeof(*output)); + } + // Re-pack non-zero coeffs in the first 32x16 indices. + for (int row = 1; row < 16; ++row) { + memcpy(output + row * 32, output + row * 64, 32 * sizeof(*output)); + } +} + +void av1_fwd_txfm2d_64x16_c(const int16_t *input, int32_t *output, int stride, + TX_TYPE tx_type, int bd) { + int32_t txfm_buf[64 * 16]; + TXFM_2D_FLIP_CFG cfg; + av1_get_fwd_txfm_cfg(tx_type, TX_64X16, &cfg); + fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd); + // Zero out the bottom 16x32 area. + memset(output + 16 * 32, 0, 16 * 32 * sizeof(*output)); + // Note: no repacking needed here. +} + +static const int8_t fwd_shift_4x4[3] = { 2, 0, 0 }; +static const int8_t fwd_shift_8x8[3] = { 2, -1, 0 }; +static const int8_t fwd_shift_16x16[3] = { 2, -2, 0 }; +static const int8_t fwd_shift_32x32[3] = { 2, -4, 0 }; +static const int8_t fwd_shift_64x64[3] = { 0, -2, -2 }; +static const int8_t fwd_shift_4x8[3] = { 2, -1, 0 }; +static const int8_t fwd_shift_8x4[3] = { 2, -1, 0 }; +static const int8_t fwd_shift_8x16[3] = { 2, -2, 0 }; +static const int8_t fwd_shift_16x8[3] = { 2, -2, 0 }; +static const int8_t fwd_shift_16x32[3] = { 2, -4, 0 }; +static const int8_t fwd_shift_32x16[3] = { 2, -4, 0 }; +static const int8_t fwd_shift_32x64[3] = { 0, -2, -2 }; +static const int8_t fwd_shift_64x32[3] = { 2, -4, -2 }; +static const int8_t fwd_shift_4x16[3] = { 2, -1, 0 }; +static const int8_t fwd_shift_16x4[3] = { 2, -1, 0 }; +static const int8_t fwd_shift_8x32[3] = { 2, -2, 0 }; +static const int8_t fwd_shift_32x8[3] = { 2, -2, 0 }; +static const int8_t fwd_shift_16x64[3] = { 0, -2, 0 }; +static const int8_t fwd_shift_64x16[3] = { 2, -4, 0 }; + +const int8_t *av1_fwd_txfm_shift_ls[TX_SIZES_ALL] = { + fwd_shift_4x4, fwd_shift_8x8, fwd_shift_16x16, fwd_shift_32x32, + fwd_shift_64x64, fwd_shift_4x8, fwd_shift_8x4, fwd_shift_8x16, + fwd_shift_16x8, fwd_shift_16x32, fwd_shift_32x16, fwd_shift_32x64, + fwd_shift_64x32, fwd_shift_4x16, fwd_shift_16x4, fwd_shift_8x32, + fwd_shift_32x8, fwd_shift_16x64, fwd_shift_64x16, +}; + +const int8_t av1_fwd_cos_bit_col[MAX_TXWH_IDX /*txw_idx*/] + [MAX_TXWH_IDX /*txh_idx*/] = { + { 13, 13, 13, 0, 0 }, + { 13, 13, 13, 12, 0 }, + { 13, 13, 13, 12, 13 }, + { 0, 13, 13, 12, 13 }, + { 0, 0, 13, 12, 13 } + }; + +const int8_t av1_fwd_cos_bit_row[MAX_TXWH_IDX /*txw_idx*/] + [MAX_TXWH_IDX /*txh_idx*/] = { + { 13, 13, 12, 0, 0 }, + { 13, 13, 13, 12, 0 }, + { 13, 13, 12, 13, 12 }, + { 0, 12, 13, 12, 11 }, + { 0, 0, 12, 11, 10 } + }; + +static const int8_t fdct4_range_mult2[4] = { 0, 2, 3, 3 }; +static const int8_t fdct8_range_mult2[6] = { 0, 2, 4, 5, 5, 5 }; +static const int8_t fdct16_range_mult2[8] = { 0, 2, 4, 6, 7, 7, 7, 7 }; +static const int8_t fdct32_range_mult2[10] = { 0, 2, 4, 6, 8, 9, 9, 9, 9, 9 }; +static const int8_t fdct64_range_mult2[12] = { 0, 2, 4, 6, 8, 10, + 11, 11, 11, 11, 11, 11 }; + +static const int8_t fadst4_range_mult2[7] = { 0, 2, 4, 3, 3, 3, 3 }; +static const int8_t fadst8_range_mult2[8] = { 0, 0, 1, 3, 3, 5, 5, 5 }; +static const int8_t fadst16_range_mult2[10] = { 0, 0, 1, 3, 3, 5, 5, 7, 7, 7 }; + +static const int8_t fidtx4_range_mult2[1] = { 1 }; +static const int8_t fidtx8_range_mult2[1] = { 2 }; +static const int8_t fidtx16_range_mult2[1] = { 3 }; +static const int8_t fidtx32_range_mult2[1] = { 4 }; + +static const int8_t *fwd_txfm_range_mult2_list[TXFM_TYPES] = { + fdct4_range_mult2, fdct8_range_mult2, fdct16_range_mult2, + fdct32_range_mult2, fdct64_range_mult2, fadst4_range_mult2, + fadst8_range_mult2, fadst16_range_mult2, fidtx4_range_mult2, + fidtx8_range_mult2, fidtx16_range_mult2, fidtx32_range_mult2 +}; + +static INLINE void set_fwd_txfm_non_scale_range(TXFM_2D_FLIP_CFG *cfg) { + av1_zero(cfg->stage_range_col); + av1_zero(cfg->stage_range_row); + + const int8_t *const range_mult2_col = + fwd_txfm_range_mult2_list[cfg->txfm_type_col]; + const int stage_num_col = cfg->stage_num_col; + // i < MAX_TXFM_STAGE_NUM will quiet -Wstringop-overflow. + for (int i = 0; i < stage_num_col && i < MAX_TXFM_STAGE_NUM; ++i) + cfg->stage_range_col[i] = (range_mult2_col[i] + 1) >> 1; + + const int8_t *const range_mult2_row = + fwd_txfm_range_mult2_list[cfg->txfm_type_row]; + const int stage_num_row = cfg->stage_num_row; + // i < MAX_TXFM_STAGE_NUM will quiet -Wstringop-overflow. + for (int i = 0; i < stage_num_row && i < MAX_TXFM_STAGE_NUM; ++i) { + cfg->stage_range_row[i] = + (range_mult2_col[stage_num_col - 1] + range_mult2_row[i] + 1) >> 1; + } +} + +void av1_get_fwd_txfm_cfg(TX_TYPE tx_type, TX_SIZE tx_size, + TXFM_2D_FLIP_CFG *cfg) { + assert(cfg != NULL); + cfg->tx_size = tx_size; + set_flip_cfg(tx_type, cfg); + const TX_TYPE_1D tx_type_1d_col = vtx_tab[tx_type]; + const TX_TYPE_1D tx_type_1d_row = htx_tab[tx_type]; + const int txw_idx = get_txw_idx(tx_size); + const int txh_idx = get_txh_idx(tx_size); + cfg->shift = av1_fwd_txfm_shift_ls[tx_size]; + cfg->cos_bit_col = av1_fwd_cos_bit_col[txw_idx][txh_idx]; + cfg->cos_bit_row = av1_fwd_cos_bit_row[txw_idx][txh_idx]; + cfg->txfm_type_col = av1_txfm_type_ls[txh_idx][tx_type_1d_col]; + assert(cfg->txfm_type_col != TXFM_TYPE_INVALID); + cfg->txfm_type_row = av1_txfm_type_ls[txw_idx][tx_type_1d_row]; + assert(cfg->txfm_type_row != TXFM_TYPE_INVALID); + cfg->stage_num_col = av1_txfm_stage_num_list[cfg->txfm_type_col]; + cfg->stage_num_row = av1_txfm_stage_num_list[cfg->txfm_type_row]; + set_fwd_txfm_non_scale_range(cfg); +} |