diff options
Diffstat (limited to 'third_party/aom/av1/common/arm/blend_a64_vmask_neon.c')
| -rw-r--r-- | third_party/aom/av1/common/arm/blend_a64_vmask_neon.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/arm/blend_a64_vmask_neon.c b/third_party/aom/av1/common/arm/blend_a64_vmask_neon.c new file mode 100644 index 000000000..194e94c8c --- /dev/null +++ b/third_party/aom/av1/common/arm/blend_a64_vmask_neon.c @@ -0,0 +1,141 @@ +/* + * + * 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. + */ + +#include <arm_neon.h> +#include <assert.h> + +#include "aom/aom_integer.h" +#include "aom_dsp/blend.h" +#include "aom_ports/mem.h" +#include "av1/common/arm/mem_neon.h" +#include "aom_dsp/aom_dsp_common.h" +#include "config/aom_dsp_rtcd.h" + +void aom_blend_a64_vmask_neon(uint8_t *dst, uint32_t dst_stride, + const uint8_t *src0, uint32_t src0_stride, + const uint8_t *src1, uint32_t src1_stride, + const uint8_t *mask, int w, int h) { + uint8x8_t tmp0, tmp1; + uint8x16_t tmp0_q, tmp1_q, res_q; + uint16x8_t res, res_low, res_high; + uint32x2_t tmp0_32 = vdup_n_u32(0), tmp1_32 = vdup_n_u32(0); + uint16x4_t tmp0_16 = vdup_n_u16(0), tmp1_16 = vdup_n_u16(0); + assert(IMPLIES(src0 == dst, src0_stride == dst_stride)); + assert(IMPLIES(src1 == dst, src1_stride == dst_stride)); + + assert(h >= 2); + assert(w >= 2); + assert(IS_POWER_OF_TWO(h)); + assert(IS_POWER_OF_TWO(w)); + + if (w >= 16) { + for (int i = 0; i < h; ++i) { + const uint8x8_t m = vdup_n_u8((uint8_t)mask[i]); + const uint8x8_t max_minus_m = vdup_n_u8(64 - (uint8_t)mask[i]); + for (int j = 0; j < w; j += 16) { + __builtin_prefetch(src0); + __builtin_prefetch(src1); + tmp0_q = vld1q_u8(src0); + tmp1_q = vld1q_u8(src1); + res_low = vmull_u8(m, vget_low_u8(tmp0_q)); + res_low = vmlal_u8(res_low, max_minus_m, vget_low_u8(tmp1_q)); + res_high = vmull_u8(m, vget_high_u8(tmp0_q)); + res_high = vmlal_u8(res_high, max_minus_m, vget_high_u8(tmp1_q)); + res_q = vcombine_u8(vrshrn_n_u16(res_low, AOM_BLEND_A64_ROUND_BITS), + vrshrn_n_u16(res_high, AOM_BLEND_A64_ROUND_BITS)); + vst1q_u8(dst, res_q); + src0 += 16; + src1 += 16; + dst += 16; + } + src0 += src0_stride - w; + src1 += src1_stride - w; + dst += dst_stride - w; + } + } else if (w == 8) { + for (int i = 0; i < h; ++i) { + __builtin_prefetch(src0); + __builtin_prefetch(src1); + const uint8x8_t m = vdup_n_u8((uint8_t)mask[i]); + const uint8x8_t max_minus_m = vdup_n_u8(64 - (uint8_t)mask[i]); + tmp0 = vld1_u8(src0); + tmp1 = vld1_u8(src1); + res = vmull_u8(m, tmp0); + res = vmlal_u8(res, max_minus_m, tmp1); + vst1_u8(dst, vrshrn_n_u16(res, AOM_BLEND_A64_ROUND_BITS)); + src0 += src0_stride; + src1 += src1_stride; + dst += dst_stride; + } + } else if (w == 4) { + for (int i = 0; i < h; i += 2) { + __builtin_prefetch(src0 + 0 * src0_stride); + __builtin_prefetch(src0 + 1 * src0_stride); + __builtin_prefetch(src1 + 0 * src1_stride); + __builtin_prefetch(src1 + 1 * src1_stride); + const uint16x4_t m1 = vdup_n_u16((uint16_t)mask[i]); + const uint16x4_t m2 = vdup_n_u16((uint16_t)mask[i + 1]); + const uint8x8_t m = vmovn_u16(vcombine_u16(m1, m2)); + const uint16x4_t max_minus_m1 = vdup_n_u16(64 - (uint16_t)mask[i]); + const uint16x4_t max_minus_m2 = vdup_n_u16(64 - (uint16_t)mask[i + 1]); + const uint8x8_t max_minus_m = + vmovn_u16(vcombine_u16(max_minus_m1, max_minus_m2)); + load_unaligned_u8_4x2(src0, src0_stride, &tmp0_32); + tmp0 = vreinterpret_u8_u32(tmp0_32); + load_unaligned_u8_4x2(src1, src1_stride, &tmp1_32); + tmp1 = vreinterpret_u8_u32(tmp1_32); + res = vmull_u8(m, tmp0); + res = vmlal_u8(res, max_minus_m, tmp1); + vst1_lane_u32( + (uint32_t *)(dst + (0 * dst_stride)), + vreinterpret_u32_u8(vrshrn_n_u16(res, AOM_BLEND_A64_ROUND_BITS)), 0); + vst1_lane_u32( + (uint32_t *)(dst + (1 * dst_stride)), + vreinterpret_u32_u8(vrshrn_n_u16(res, AOM_BLEND_A64_ROUND_BITS)), 1); + src0 += (2 * src0_stride); + src1 += (2 * src1_stride); + dst += (2 * dst_stride); + } + } else if (w == 2) { + for (int i = 0; i < h; i += 2) { + __builtin_prefetch(src0 + 0 * src0_stride); + __builtin_prefetch(src0 + 1 * src0_stride); + __builtin_prefetch(src1 + 0 * src1_stride); + __builtin_prefetch(src1 + 1 * src1_stride); + const uint8x8_t m1 = vdup_n_u8(mask[i]); + const uint8x8_t m2 = vdup_n_u8(mask[i + 1]); + const uint16x4x2_t m_trn = + vtrn_u16(vreinterpret_u16_u8(m1), vreinterpret_u16_u8(m2)); + const uint8x8_t m = vreinterpret_u8_u16(m_trn.val[0]); + const uint8x8_t max_minus_m1 = vdup_n_u8(64 - mask[i]); + const uint8x8_t max_minus_m2 = vdup_n_u8(64 - mask[i + 1]); + const uint16x4x2_t max_minus_m_trn = vtrn_u16( + vreinterpret_u16_u8(max_minus_m1), vreinterpret_u16_u8(max_minus_m2)); + const uint8x8_t max_minus_m = vreinterpret_u8_u16(max_minus_m_trn.val[0]); + load_unaligned_u8_2x2(src0, src0_stride, &tmp0_16); + tmp0 = vreinterpret_u8_u16(tmp0_16); + load_unaligned_u8_2x2(src1, src1_stride, &tmp1_16); + tmp1 = vreinterpret_u8_u16(tmp1_16); + res = vmull_u8(m, tmp0); + res = vmlal_u8(res, max_minus_m, tmp1); + vst1_lane_u16( + (uint16_t *)(dst + (0 * dst_stride)), + vreinterpret_u16_u8(vrshrn_n_u16(res, AOM_BLEND_A64_ROUND_BITS)), 0); + vst1_lane_u16( + (uint16_t *)(dst + (1 * dst_stride)), + vreinterpret_u16_u8(vrshrn_n_u16(res, AOM_BLEND_A64_ROUND_BITS)), 1); + src0 += (2 * src0_stride); + src1 += (2 * src1_stride); + dst += (2 * dst_stride); + } + } +} |