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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/aom_dsp/arm/blend_neon.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/arm/blend_neon.h b/third_party/aom/aom_dsp/arm/blend_neon.h new file mode 100644 index 0000000000..c8a03224e4 --- /dev/null +++ b/third_party/aom/aom_dsp/arm/blend_neon.h @@ -0,0 +1,125 @@ +/* + * Copyright (c) 2023, 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_AOM_DSP_ARM_BLEND_NEON_H_ +#define AOM_AOM_DSP_ARM_BLEND_NEON_H_ + +#include <arm_neon.h> + +#include "aom_dsp/blend.h" + +static INLINE uint8x16_t alpha_blend_a64_u8x16(uint8x16_t m, uint8x16_t a, + uint8x16_t b) { + const uint8x16_t m_inv = vsubq_u8(vdupq_n_u8(AOM_BLEND_A64_MAX_ALPHA), m); + + uint16x8_t blend_u16_lo = vmull_u8(vget_low_u8(m), vget_low_u8(a)); + uint16x8_t blend_u16_hi = vmull_u8(vget_high_u8(m), vget_high_u8(a)); + + blend_u16_lo = vmlal_u8(blend_u16_lo, vget_low_u8(m_inv), vget_low_u8(b)); + blend_u16_hi = vmlal_u8(blend_u16_hi, vget_high_u8(m_inv), vget_high_u8(b)); + + uint8x8_t blend_u8_lo = vrshrn_n_u16(blend_u16_lo, AOM_BLEND_A64_ROUND_BITS); + uint8x8_t blend_u8_hi = vrshrn_n_u16(blend_u16_hi, AOM_BLEND_A64_ROUND_BITS); + + return vcombine_u8(blend_u8_lo, blend_u8_hi); +} + +static INLINE uint8x8_t alpha_blend_a64_u8x8(uint8x8_t m, uint8x8_t a, + uint8x8_t b) { + const uint8x8_t m_inv = vsub_u8(vdup_n_u8(AOM_BLEND_A64_MAX_ALPHA), m); + + uint16x8_t blend_u16 = vmull_u8(m, a); + + blend_u16 = vmlal_u8(blend_u16, m_inv, b); + + return vrshrn_n_u16(blend_u16, AOM_BLEND_A64_ROUND_BITS); +} + +#if CONFIG_AV1_HIGHBITDEPTH +static INLINE uint16x8_t alpha_blend_a64_u16x8(uint16x8_t m, uint16x8_t a, + uint16x8_t b) { + uint16x8_t m_inv = vsubq_u16(vdupq_n_u16(AOM_BLEND_A64_MAX_ALPHA), m); + + uint32x4_t blend_u32_lo = vmull_u16(vget_low_u16(a), vget_low_u16(m)); + uint32x4_t blend_u32_hi = vmull_u16(vget_high_u16(a), vget_high_u16(m)); + + blend_u32_lo = vmlal_u16(blend_u32_lo, vget_low_u16(b), vget_low_u16(m_inv)); + blend_u32_hi = + vmlal_u16(blend_u32_hi, vget_high_u16(b), vget_high_u16(m_inv)); + + uint16x4_t blend_u16_lo = + vrshrn_n_u32(blend_u32_lo, AOM_BLEND_A64_ROUND_BITS); + uint16x4_t blend_u16_hi = + vrshrn_n_u32(blend_u32_hi, AOM_BLEND_A64_ROUND_BITS); + + return vcombine_u16(blend_u16_lo, blend_u16_hi); +} + +static INLINE uint16x4_t alpha_blend_a64_u16x4(uint16x4_t m, uint16x4_t a, + uint16x4_t b) { + const uint16x4_t m_inv = vsub_u16(vdup_n_u16(AOM_BLEND_A64_MAX_ALPHA), m); + + uint32x4_t blend_u16 = vmull_u16(m, a); + + blend_u16 = vmlal_u16(blend_u16, m_inv, b); + + return vrshrn_n_u32(blend_u16, AOM_BLEND_A64_ROUND_BITS); +} +#endif // CONFIG_AV1_HIGHBITDEPTH + +static INLINE uint8x8_t avg_blend_u8x8(uint8x8_t a, uint8x8_t b) { + return vrhadd_u8(a, b); +} + +static INLINE uint8x16_t avg_blend_u8x16(uint8x16_t a, uint8x16_t b) { + return vrhaddq_u8(a, b); +} + +static INLINE uint8x8_t avg_blend_pairwise_u8x8(uint8x8_t a, uint8x8_t b) { + return vrshr_n_u8(vpadd_u8(a, b), 1); +} + +static INLINE uint8x16_t avg_blend_pairwise_u8x16(uint8x16_t a, uint8x16_t b) { +#if AOM_ARCH_AARCH64 + return vrshrq_n_u8(vpaddq_u8(a, b), 1); +#else + uint8x8_t sum_pairwise_a = vpadd_u8(vget_low_u8(a), vget_high_u8(a)); + uint8x8_t sum_pairwise_b = vpadd_u8(vget_low_u8(b), vget_high_u8(b)); + return vrshrq_n_u8(vcombine_u8(sum_pairwise_a, sum_pairwise_b), 1); +#endif // AOM_ARCH_AARCH64 +} + +static INLINE uint8x8_t avg_blend_pairwise_u8x8_4(uint8x8_t a, uint8x8_t b, + uint8x8_t c, uint8x8_t d) { + uint8x8_t a_c = vpadd_u8(a, c); + uint8x8_t b_d = vpadd_u8(b, d); + return vrshr_n_u8(vqadd_u8(a_c, b_d), 2); +} + +static INLINE uint8x16_t avg_blend_pairwise_u8x16_4(uint8x16_t a, uint8x16_t b, + uint8x16_t c, + uint8x16_t d) { +#if AOM_ARCH_AARCH64 + uint8x16_t a_c = vpaddq_u8(a, c); + uint8x16_t b_d = vpaddq_u8(b, d); + return vrshrq_n_u8(vqaddq_u8(a_c, b_d), 2); +#else + uint8x8_t sum_pairwise_a = vpadd_u8(vget_low_u8(a), vget_high_u8(a)); + uint8x8_t sum_pairwise_b = vpadd_u8(vget_low_u8(b), vget_high_u8(b)); + uint8x8_t sum_pairwise_c = vpadd_u8(vget_low_u8(c), vget_high_u8(c)); + uint8x8_t sum_pairwise_d = vpadd_u8(vget_low_u8(d), vget_high_u8(d)); + uint8x16_t a_c = vcombine_u8(sum_pairwise_a, sum_pairwise_c); + uint8x16_t b_d = vcombine_u8(sum_pairwise_b, sum_pairwise_d); + return vrshrq_n_u8(vqaddq_u8(a_c, b_d), 2); +#endif // AOM_ARCH_AARCH64 +} + +#endif // AOM_AOM_DSP_ARM_BLEND_NEON_H_ |