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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/arm/neon/av1_highbd_quantize_neon.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/arm/neon/av1_highbd_quantize_neon.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/arm/neon/av1_highbd_quantize_neon.c b/third_party/aom/av1/encoder/arm/neon/av1_highbd_quantize_neon.c new file mode 100644 index 0000000000..11d3def16b --- /dev/null +++ b/third_party/aom/av1/encoder/arm/neon/av1_highbd_quantize_neon.c @@ -0,0 +1,146 @@ +/* + * Copyright (c) 2022, 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 <arm_neon.h> + +#include "config/aom_config.h" + +#include "aom_dsp/arm/mem_neon.h" + +#include "av1/common/quant_common.h" +#include "av1/encoder/av1_quantize.h" + +static INLINE uint16x4_t quantize_4(const tran_low_t *coeff_ptr, + tran_low_t *qcoeff_ptr, + tran_low_t *dqcoeff_ptr, + int32x4_t v_quant_s32, + int32x4_t v_dequant_s32, + int32x4_t v_round_s32, int log_scale) { + const int32x4_t v_coeff = vld1q_s32(coeff_ptr); + const int32x4_t v_coeff_sign = + vreinterpretq_s32_u32(vcltq_s32(v_coeff, vdupq_n_s32(0))); + const int32x4_t v_log_scale = vdupq_n_s32(log_scale); + const int32x4_t v_abs_coeff = vabsq_s32(v_coeff); + // ((abs_coeff << (1 + log_scale)) >= dequant_ptr[rc01]) + const int32x4_t v_abs_coeff_scaled = + vshlq_s32(v_abs_coeff, vdupq_n_s32(1 + log_scale)); + const uint32x4_t v_mask = vcgeq_s32(v_abs_coeff_scaled, v_dequant_s32); + // const int64_t tmp = vmask ? (int64_t)abs_coeff + log_scaled_round : 0 + const int32x4_t v_tmp = vandq_s32(vaddq_s32(v_abs_coeff, v_round_s32), + vreinterpretq_s32_u32(v_mask)); + // const int abs_qcoeff = (int)((tmp * quant) >> (16 - log_scale)); + const int32x4_t v_abs_qcoeff = + vqdmulhq_s32(vshlq_s32(v_tmp, v_log_scale), v_quant_s32); + // qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign); + const int32x4_t v_qcoeff = + vsubq_s32(veorq_s32(v_abs_qcoeff, v_coeff_sign), v_coeff_sign); + // vshlq_s32 will shift right if shift value is negative. + const int32x4_t v_abs_dqcoeff = + vshlq_s32(vmulq_s32(v_abs_qcoeff, v_dequant_s32), vnegq_s32(v_log_scale)); + // dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign); + const int32x4_t v_dqcoeff = + vsubq_s32(veorq_s32(v_abs_dqcoeff, v_coeff_sign), v_coeff_sign); + + vst1q_s32(qcoeff_ptr, v_qcoeff); + vst1q_s32(dqcoeff_ptr, v_dqcoeff); + + // Used to find eob. + const uint32x4_t nz_qcoeff_mask = vcgtq_s32(v_abs_qcoeff, vdupq_n_s32(0)); + return vmovn_u32(nz_qcoeff_mask); +} + +static INLINE int16x8_t get_max_lane_eob(const int16_t *iscan, + int16x8_t v_eobmax, + uint16x8_t v_mask) { + const int16x8_t v_iscan = vld1q_s16(&iscan[0]); + const int16x8_t v_iscan_plus1 = vaddq_s16(v_iscan, vdupq_n_s16(1)); + const int16x8_t v_nz_iscan = vbslq_s16(v_mask, v_iscan_plus1, vdupq_n_s16(0)); + return vmaxq_s16(v_eobmax, v_nz_iscan); +} + +static INLINE uint16_t get_max_eob(int16x8_t v_eobmax) { +#if AOM_ARCH_AARCH64 + return (uint16_t)vmaxvq_s16(v_eobmax); +#else + const int16x4_t v_eobmax_3210 = + vmax_s16(vget_low_s16(v_eobmax), vget_high_s16(v_eobmax)); + const int64x1_t v_eobmax_xx32 = + vshr_n_s64(vreinterpret_s64_s16(v_eobmax_3210), 32); + const int16x4_t v_eobmax_tmp = + vmax_s16(v_eobmax_3210, vreinterpret_s16_s64(v_eobmax_xx32)); + const int64x1_t v_eobmax_xxx3 = + vshr_n_s64(vreinterpret_s64_s16(v_eobmax_tmp), 16); + const int16x4_t v_eobmax_final = + vmax_s16(v_eobmax_tmp, vreinterpret_s16_s64(v_eobmax_xxx3)); + return (uint16_t)vget_lane_s16(v_eobmax_final, 0); +#endif +} + +void av1_highbd_quantize_fp_neon( + const tran_low_t *coeff_ptr, intptr_t count, const int16_t *zbin_ptr, + const int16_t *round_ptr, const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, + tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan, int log_scale) { + (void)scan; + (void)zbin_ptr; + (void)quant_shift_ptr; + + const int16x4_t v_quant = vld1_s16(quant_ptr); + const int16x4_t v_dequant = vld1_s16(dequant_ptr); + const int16x4_t v_zero = vdup_n_s16(0); + const uint16x4_t v_round_select = vcgt_s16(vdup_n_s16(log_scale), v_zero); + const int16x4_t v_round_no_scale = vld1_s16(round_ptr); + const int16x4_t v_round_log_scale = + vqrdmulh_n_s16(v_round_no_scale, (int16_t)(1 << (15 - log_scale))); + const int16x4_t v_round = + vbsl_s16(v_round_select, v_round_log_scale, v_round_no_scale); + int32x4_t v_round_s32 = vaddl_s16(v_round, v_zero); + int32x4_t v_quant_s32 = vshlq_n_s32(vaddl_s16(v_quant, v_zero), 15); + int32x4_t v_dequant_s32 = vaddl_s16(v_dequant, v_zero); + uint16x4_t v_mask_lo, v_mask_hi; + int16x8_t v_eobmax = vdupq_n_s16(-1); + + // DC and first 3 AC + v_mask_lo = quantize_4(coeff_ptr, qcoeff_ptr, dqcoeff_ptr, v_quant_s32, + v_dequant_s32, v_round_s32, log_scale); + + // overwrite the DC constants with AC constants + v_round_s32 = vdupq_lane_s32(vget_low_s32(v_round_s32), 1); + v_quant_s32 = vdupq_lane_s32(vget_low_s32(v_quant_s32), 1); + v_dequant_s32 = vdupq_lane_s32(vget_low_s32(v_dequant_s32), 1); + + // 4 more AC + v_mask_hi = quantize_4(coeff_ptr + 4, qcoeff_ptr + 4, dqcoeff_ptr + 4, + v_quant_s32, v_dequant_s32, v_round_s32, log_scale); + + // Find the max lane eob for the first 8 coeffs. + v_eobmax = + get_max_lane_eob(iscan, v_eobmax, vcombine_u16(v_mask_lo, v_mask_hi)); + + count -= 8; + do { + coeff_ptr += 8; + qcoeff_ptr += 8; + dqcoeff_ptr += 8; + iscan += 8; + v_mask_lo = quantize_4(coeff_ptr, qcoeff_ptr, dqcoeff_ptr, v_quant_s32, + v_dequant_s32, v_round_s32, log_scale); + v_mask_hi = quantize_4(coeff_ptr + 4, qcoeff_ptr + 4, dqcoeff_ptr + 4, + v_quant_s32, v_dequant_s32, v_round_s32, log_scale); + // Find the max lane eob for 8 coeffs. + v_eobmax = + get_max_lane_eob(iscan, v_eobmax, vcombine_u16(v_mask_lo, v_mask_hi)); + count -= 8; + } while (count); + + *eob_ptr = get_max_eob(v_eobmax); +} |