diff options
Diffstat (limited to 'libvpx/vpx_dsp/loongarch/quantize_lsx.c')
| -rw-r--r-- | libvpx/vpx_dsp/loongarch/quantize_lsx.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/libvpx/vpx_dsp/loongarch/quantize_lsx.c b/libvpx/vpx_dsp/loongarch/quantize_lsx.c new file mode 100644 index 000000000..2fc33b06b --- /dev/null +++ b/libvpx/vpx_dsp/loongarch/quantize_lsx.c @@ -0,0 +1,253 @@ +/* + * Copyright (c) 2022 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "./vpx_config.h" +#include "./vpx_dsp_rtcd.h" +#include "vpx_util/loongson_intrinsics.h" + +static INLINE __m128i calculate_qcoeff(__m128i coeff, __m128i coeff_abs, + __m128i round, __m128i quant, + __m128i shift, __m128i cmp_mask) { + __m128i rounded, qcoeff; + + rounded = __lsx_vsadd_h(coeff_abs, round); + qcoeff = __lsx_vmuh_h(rounded, quant); + qcoeff = __lsx_vadd_h(rounded, qcoeff); + qcoeff = __lsx_vmuh_h(qcoeff, shift); + qcoeff = __lsx_vsigncov_h(coeff, qcoeff); + qcoeff = __lsx_vand_v(qcoeff, cmp_mask); + + return qcoeff; +} + +static INLINE void calculate_dqcoeff_and_store(__m128i qcoeff, __m128i dequant, + int16_t *dqcoeff) { + __m128i dqcoeff16 = __lsx_vmul_h(qcoeff, dequant); + __lsx_vst(dqcoeff16, dqcoeff, 0); +} + +static INLINE void calculate_dqcoeff_and_store_32x32(__m128i qcoeff, + __m128i dequant, + int16_t *dqcoeff) { + // Un-sign to bias rounding like C. + __m128i low, high, dqcoeff32_0, dqcoeff32_1, res; + __m128i zero = __lsx_vldi(0); + __m128i coeff = __lsx_vabsd_h(qcoeff, zero); + + const __m128i sign_0 = __lsx_vilvl_h(qcoeff, zero); + const __m128i sign_1 = __lsx_vilvh_h(qcoeff, zero); + + low = __lsx_vmul_h(coeff, dequant); + high = __lsx_vmuh_h(coeff, dequant); + dqcoeff32_0 = __lsx_vilvl_h(high, low); + dqcoeff32_1 = __lsx_vilvh_h(high, low); + + // "Divide" by 2. + dqcoeff32_0 = __lsx_vsrai_w(dqcoeff32_0, 1); + dqcoeff32_1 = __lsx_vsrai_w(dqcoeff32_1, 1); + dqcoeff32_0 = __lsx_vsigncov_w(sign_0, dqcoeff32_0); + dqcoeff32_1 = __lsx_vsigncov_w(sign_1, dqcoeff32_1); + res = __lsx_vpickev_h(dqcoeff32_1, dqcoeff32_0); + __lsx_vst(res, dqcoeff, 0); +} + +static INLINE __m128i scan_for_eob(__m128i coeff0, __m128i coeff1, + __m128i zbin_mask0, __m128i zbin_mask1, + const int16_t *scan, int index, + __m128i zero) { + const __m128i zero_coeff0 = __lsx_vseq_h(coeff0, zero); + const __m128i zero_coeff1 = __lsx_vseq_h(coeff1, zero); + __m128i scan0 = __lsx_vld(scan + index, 0); + __m128i scan1 = __lsx_vld(scan + index + 8, 0); + __m128i eob0, eob1; + + scan0 = __lsx_vsub_h(scan0, zbin_mask0); + scan1 = __lsx_vsub_h(scan1, zbin_mask1); + eob0 = __lsx_vandn_v(zero_coeff0, scan0); + eob1 = __lsx_vandn_v(zero_coeff1, scan1); + return __lsx_vmax_h(eob0, eob1); +} + +static INLINE int16_t accumulate_eob(__m128i eob) { + __m128i eob_shuffled; + int16_t res_m; + + eob_shuffled = __lsx_vshuf4i_w(eob, 0xe); + eob = __lsx_vmax_h(eob, eob_shuffled); + eob_shuffled = __lsx_vshuf4i_h(eob, 0xe); + eob = __lsx_vmax_h(eob, eob_shuffled); + eob_shuffled = __lsx_vshuf4i_h(eob, 0x1); + eob = __lsx_vmax_h(eob, eob_shuffled); + res_m = __lsx_vpickve2gr_h(eob, 1); + + return res_m; +} + +#if !CONFIG_VP9_HIGHBITDEPTH +void vpx_quantize_b_lsx(const int16_t *coeff_ptr, intptr_t n_coeffs, + const int16_t *zbin_ptr, const int16_t *round_ptr, + const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, int16_t *qcoeff_ptr, + int16_t *dqcoeff_ptr, const int16_t *dequant_ptr, + uint16_t *eob_ptr, const int16_t *scan, + const int16_t *iscan) { + __m128i zero = __lsx_vldi(0); + int index = 16; + + __m128i zbin, round, quant, dequant, quant_shift; + __m128i coeff0, coeff1; + __m128i qcoeff0, qcoeff1; + __m128i cmp_mask0, cmp_mask1; + __m128i eob, eob0; + + (void)scan; + + zbin = __lsx_vld(zbin_ptr, 0); + round = __lsx_vld(round_ptr, 0); + quant = __lsx_vld(quant_ptr, 0); + dequant = __lsx_vld(dequant_ptr, 0); + quant_shift = __lsx_vld(quant_shift_ptr, 0); + // Handle one DC and first 15 AC. + DUP2_ARG2(__lsx_vld, coeff_ptr, 0, coeff_ptr, 16, coeff0, coeff1); + qcoeff0 = __lsx_vabsd_h(coeff0, zero); + qcoeff1 = __lsx_vabsd_h(coeff1, zero); + + cmp_mask0 = __lsx_vsle_h(zbin, qcoeff0); + zbin = __lsx_vilvh_d(zbin, zbin); + cmp_mask1 = __lsx_vsle_h(zbin, qcoeff1); + + qcoeff0 = + calculate_qcoeff(coeff0, qcoeff0, round, quant, quant_shift, cmp_mask0); + round = __lsx_vilvh_d(round, round); + quant = __lsx_vilvh_d(quant, quant); + quant_shift = __lsx_vilvh_d(quant_shift, quant_shift); + qcoeff1 = + calculate_qcoeff(coeff1, qcoeff1, round, quant, quant_shift, cmp_mask1); + + __lsx_vst(qcoeff0, qcoeff_ptr, 0); + __lsx_vst(qcoeff1, qcoeff_ptr, 16); + + calculate_dqcoeff_and_store(qcoeff0, dequant, dqcoeff_ptr); + dequant = __lsx_vilvh_d(dequant, dequant); + calculate_dqcoeff_and_store(qcoeff1, dequant, dqcoeff_ptr + 8); + + eob = scan_for_eob(qcoeff0, qcoeff1, cmp_mask0, cmp_mask1, iscan, 0, zero); + // AC only loop. + while (index < n_coeffs) { + coeff0 = __lsx_vld(coeff_ptr + index, 0); + coeff1 = __lsx_vld(coeff_ptr + index + 8, 0); + + qcoeff0 = __lsx_vabsd_h(coeff0, zero); + qcoeff1 = __lsx_vabsd_h(coeff1, zero); + + cmp_mask0 = __lsx_vsle_h(zbin, qcoeff0); + cmp_mask1 = __lsx_vsle_h(zbin, qcoeff1); + + qcoeff0 = + calculate_qcoeff(coeff0, qcoeff0, round, quant, quant_shift, cmp_mask0); + qcoeff1 = + calculate_qcoeff(coeff1, qcoeff1, round, quant, quant_shift, cmp_mask1); + + __lsx_vst(qcoeff0, qcoeff_ptr + index, 0); + __lsx_vst(qcoeff1, qcoeff_ptr + index + 8, 0); + + calculate_dqcoeff_and_store(qcoeff0, dequant, dqcoeff_ptr + index); + calculate_dqcoeff_and_store(qcoeff1, dequant, dqcoeff_ptr + index + 8); + + eob0 = scan_for_eob(qcoeff0, qcoeff1, cmp_mask0, cmp_mask1, iscan, index, + zero); + eob = __lsx_vmax_h(eob, eob0); + + index += 16; + } + + *eob_ptr = accumulate_eob(eob); +} + +void vpx_quantize_b_32x32_lsx(const int16_t *coeff_ptr, intptr_t n_coeffs, + const int16_t *zbin_ptr, const int16_t *round_ptr, + const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, + int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr, + const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan) { + __m128i zero = __lsx_vldi(0); + int index; + + __m128i zbin, round, quant, dequant, quant_shift; + __m128i coeff0, coeff1, qcoeff0, qcoeff1, cmp_mask0, cmp_mask1; + __m128i eob = zero, eob0; + + (void)scan; + (void)n_coeffs; + + zbin = __lsx_vld(zbin_ptr, 0); + zbin = __lsx_vsrari_h(zbin, 1); + round = __lsx_vld(round_ptr, 0); + round = __lsx_vsrari_h(round, 1); + + quant = __lsx_vld(quant_ptr, 0); + dequant = __lsx_vld(dequant_ptr, 0); + quant_shift = __lsx_vld(quant_shift_ptr, 0); + quant_shift = __lsx_vslli_h(quant_shift, 1); + // Handle one DC and first 15 AC. + DUP2_ARG2(__lsx_vld, coeff_ptr, 0, coeff_ptr, 16, coeff0, coeff1); + qcoeff0 = __lsx_vabsd_h(coeff0, zero); + qcoeff1 = __lsx_vabsd_h(coeff1, zero); + + cmp_mask0 = __lsx_vsle_h(zbin, qcoeff0); + // remove DC from zbin + zbin = __lsx_vilvh_d(zbin, zbin); + cmp_mask1 = __lsx_vsle_h(zbin, qcoeff1); + + qcoeff0 = + calculate_qcoeff(coeff0, qcoeff0, round, quant, quant_shift, cmp_mask0); + // remove DC in quant_shift, quant, quant_shift + round = __lsx_vilvh_d(round, round); + quant = __lsx_vilvh_d(quant, quant); + quant_shift = __lsx_vilvh_d(quant_shift, quant_shift); + qcoeff1 = + calculate_qcoeff(coeff1, qcoeff1, round, quant, quant_shift, cmp_mask1); + __lsx_vst(qcoeff0, qcoeff_ptr, 0); + __lsx_vst(qcoeff1, qcoeff_ptr, 16); + + calculate_dqcoeff_and_store_32x32(qcoeff0, dequant, dqcoeff_ptr); + dequant = __lsx_vilvh_d(dequant, dequant); + calculate_dqcoeff_and_store_32x32(qcoeff1, dequant, dqcoeff_ptr + 8); + eob = scan_for_eob(qcoeff0, qcoeff1, cmp_mask0, cmp_mask1, iscan, 0, zero); + // AC only loop. + for (index = 16; index < 32 * 32; index += 16) { + coeff0 = __lsx_vld(coeff_ptr + index, 0); + coeff1 = __lsx_vld(coeff_ptr + index + 8, 0); + + qcoeff0 = __lsx_vabsd_h(coeff0, zero); + qcoeff1 = __lsx_vabsd_h(coeff1, zero); + + cmp_mask0 = __lsx_vsle_h(zbin, qcoeff0); + cmp_mask1 = __lsx_vsle_h(zbin, qcoeff1); + + qcoeff0 = + calculate_qcoeff(coeff0, qcoeff0, round, quant, quant_shift, cmp_mask0); + qcoeff1 = + calculate_qcoeff(coeff1, qcoeff1, round, quant, quant_shift, cmp_mask1); + __lsx_vst(qcoeff0, qcoeff_ptr + index, 0); + __lsx_vst(qcoeff1, qcoeff_ptr + index + 8, 0); + + calculate_dqcoeff_and_store_32x32(qcoeff0, dequant, dqcoeff_ptr + index); + calculate_dqcoeff_and_store_32x32(qcoeff1, dequant, + dqcoeff_ptr + 8 + index); + eob0 = scan_for_eob(qcoeff0, qcoeff1, cmp_mask0, cmp_mask1, iscan, index, + zero); + eob = __lsx_vmax_h(eob, eob0); + } + + *eob_ptr = accumulate_eob(eob); +} +#endif |