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Diffstat (limited to 'third_party/aom/av1/common/arm/av1_inv_txfm_neon.h')
| -rw-r--r-- | third_party/aom/av1/common/arm/av1_inv_txfm_neon.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/arm/av1_inv_txfm_neon.h b/third_party/aom/av1/common/arm/av1_inv_txfm_neon.h new file mode 100644 index 000000000..9ec658291 --- /dev/null +++ b/third_party/aom/av1/common/arm/av1_inv_txfm_neon.h @@ -0,0 +1,154 @@ +/* + * Copyright (c) 2018, 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. + */ +#ifndef AOM_AV1_COMMON_ARM_AV1_INV_TXFM_NEON_H_ +#define AOM_AV1_COMMON_ARM_AV1_INV_TXFM_NEON_H_ + +#include "config/aom_config.h" +#include "config/av1_rtcd.h" + +#include "aom/aom_integer.h" +#include "av1/common/enums.h" +#include "av1/common/av1_inv_txfm1d.h" +#include "av1/common/av1_inv_txfm1d_cfg.h" +#include "av1/common/av1_txfm.h" + +typedef void (*transform_1d_neon)(const int32_t *input, int32_t *output, + const int8_t cos_bit, + const int8_t *stage_ptr); +typedef void (*transform_neon)(int16x8_t *input, int16x8_t *output, + int8_t cos_bit, int bit); + +DECLARE_ALIGNED(16, static const int16_t, av1_eob_to_eobxy_8x8_default[8]) = { + 0x0707, 0x0707, 0x0707, 0x0707, 0x0707, 0x0707, 0x0707, 0x0707, +}; + +DECLARE_ALIGNED(16, static const int16_t, + av1_eob_to_eobxy_16x16_default[16]) = { + 0x0707, 0x0707, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, + 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, +}; + +DECLARE_ALIGNED(16, static const int16_t, + av1_eob_to_eobxy_32x32_default[32]) = { + 0x0707, 0x0f0f, 0x0f0f, 0x0f0f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, + 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, + 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, + 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, 0x1f1f, +}; + +DECLARE_ALIGNED(16, static const int16_t, av1_eob_to_eobxy_8x16_default[16]) = { + 0x0707, 0x0707, 0x0707, 0x0707, 0x0707, 0x0f07, 0x0f07, 0x0f07, + 0x0f07, 0x0f07, 0x0f07, 0x0f07, 0x0f07, 0x0f07, 0x0f07, 0x0f07, +}; + +DECLARE_ALIGNED(16, static const int16_t, av1_eob_to_eobxy_16x8_default[8]) = { + 0x0707, 0x0707, 0x070f, 0x070f, 0x070f, 0x070f, 0x070f, 0x070f, +}; + +DECLARE_ALIGNED(16, static const int16_t, + av1_eob_to_eobxy_16x32_default[32]) = { + 0x0707, 0x0707, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f0f, + 0x0f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, + 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, + 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, 0x1f0f, +}; + +DECLARE_ALIGNED(16, static const int16_t, + av1_eob_to_eobxy_32x16_default[16]) = { + 0x0707, 0x0f0f, 0x0f0f, 0x0f0f, 0x0f1f, 0x0f1f, 0x0f1f, 0x0f1f, + 0x0f1f, 0x0f1f, 0x0f1f, 0x0f1f, 0x0f1f, 0x0f1f, 0x0f1f, 0x0f1f, +}; + +DECLARE_ALIGNED(16, static const int16_t, av1_eob_to_eobxy_8x32_default[32]) = { + 0x0707, 0x0707, 0x0707, 0x0707, 0x0707, 0x0f07, 0x0f07, 0x0f07, + 0x0f07, 0x0f07, 0x0f07, 0x0f07, 0x0f07, 0x1f07, 0x1f07, 0x1f07, + 0x1f07, 0x1f07, 0x1f07, 0x1f07, 0x1f07, 0x1f07, 0x1f07, 0x1f07, + 0x1f07, 0x1f07, 0x1f07, 0x1f07, 0x1f07, 0x1f07, 0x1f07, 0x1f07, +}; + +DECLARE_ALIGNED(16, static const int16_t, av1_eob_to_eobxy_32x8_default[8]) = { + 0x0707, 0x070f, 0x070f, 0x071f, 0x071f, 0x071f, 0x071f, 0x071f, +}; + +DECLARE_ALIGNED(16, static const int16_t *, + av1_eob_to_eobxy_default[TX_SIZES_ALL]) = { + NULL, + av1_eob_to_eobxy_8x8_default, + av1_eob_to_eobxy_16x16_default, + av1_eob_to_eobxy_32x32_default, + av1_eob_to_eobxy_32x32_default, + NULL, + NULL, + av1_eob_to_eobxy_8x16_default, + av1_eob_to_eobxy_16x8_default, + av1_eob_to_eobxy_16x32_default, + av1_eob_to_eobxy_32x16_default, + av1_eob_to_eobxy_32x32_default, + av1_eob_to_eobxy_32x32_default, + NULL, + NULL, + av1_eob_to_eobxy_8x32_default, + av1_eob_to_eobxy_32x8_default, + av1_eob_to_eobxy_16x32_default, + av1_eob_to_eobxy_32x16_default, +}; + +static const int lowbd_txfm_all_1d_zeros_idx[32] = { + 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, +}; + +// Transform block width in log2 for eob (size of 64 map to 32) +static const int tx_size_wide_log2_eob[TX_SIZES_ALL] = { + 2, 3, 4, 5, 5, 2, 3, 3, 4, 4, 5, 5, 5, 2, 4, 3, 5, 4, 5, +}; + +static int eob_fill[32] = { + 0, 7, 7, 7, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, + 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, +}; + +static INLINE void get_eobx_eoby_scan_default(int *eobx, int *eoby, + TX_SIZE tx_size, int eob) { + if (eob == 1) { + *eobx = 0; + *eoby = 0; + return; + } + + const int tx_w_log2 = tx_size_wide_log2_eob[tx_size]; + const int eob_row = (eob - 1) >> tx_w_log2; + const int eobxy = av1_eob_to_eobxy_default[tx_size][eob_row]; + *eobx = eobxy & 0xFF; + *eoby = eobxy >> 8; +} + +static INLINE void get_eobx_eoby_scan_v_identity(int *eobx, int *eoby, + TX_SIZE tx_size, int eob) { + eob -= 1; + const int txfm_size_row = tx_size_high[tx_size]; + const int eoby_max = AOMMIN(32, txfm_size_row) - 1; + *eobx = eob / (eoby_max + 1); + *eoby = (eob >= eoby_max) ? eoby_max : eob_fill[eob]; +} + +static INLINE void get_eobx_eoby_scan_h_identity(int *eobx, int *eoby, + TX_SIZE tx_size, int eob) { + eob -= 1; + const int txfm_size_col = tx_size_wide[tx_size]; + const int eobx_max = AOMMIN(32, txfm_size_col) - 1; + *eobx = (eob >= eobx_max) ? eobx_max : eob_fill[eob]; + const int temp_eoby = eob / (eobx_max + 1); + assert(temp_eoby < 32); + *eoby = eob_fill[temp_eoby]; +} + +#endif // AOM_AV1_COMMON_ARM_AV1_INV_TXFM_NEON_H_ |