diff options
Diffstat (limited to 'media/libvpx/libvpx/vpx_dsp/arm/idct16x16_add_neon.c')
-rw-r--r-- | media/libvpx/libvpx/vpx_dsp/arm/idct16x16_add_neon.c | 764 |
1 files changed, 764 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/arm/idct16x16_add_neon.c b/media/libvpx/libvpx/vpx_dsp/arm/idct16x16_add_neon.c new file mode 100644 index 0000000000..fc7f4a7747 --- /dev/null +++ b/media/libvpx/libvpx/vpx_dsp/arm/idct16x16_add_neon.c @@ -0,0 +1,764 @@ +/* + * Copyright (c) 2014 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 <arm_neon.h> + +#include "./vpx_dsp_rtcd.h" +#include "vpx_dsp/arm/idct_neon.h" +#include "vpx_dsp/arm/mem_neon.h" +#include "vpx_dsp/txfm_common.h" + +static INLINE void wrap_low_4x2(const int32x4_t *const t32, int16x4_t *const d0, + int16x4_t *const d1) { + *d0 = vrshrn_n_s32(t32[0], DCT_CONST_BITS); + *d1 = vrshrn_n_s32(t32[1], DCT_CONST_BITS); +} + +static INLINE void idct_cospi_8_24_d_kernel(const int16x4_t s0, + const int16x4_t s1, + const int16x4_t cospi_0_8_16_24, + int32x4_t *const t32) { + t32[0] = vmull_lane_s16(s0, cospi_0_8_16_24, 3); + t32[1] = vmull_lane_s16(s1, cospi_0_8_16_24, 3); + t32[0] = vmlsl_lane_s16(t32[0], s1, cospi_0_8_16_24, 1); + t32[1] = vmlal_lane_s16(t32[1], s0, cospi_0_8_16_24, 1); +} + +static INLINE void idct_cospi_8_24_d(const int16x4_t s0, const int16x4_t s1, + const int16x4_t cospi_0_8_16_24, + int16x4_t *const d0, int16x4_t *const d1) { + int32x4_t t32[2]; + + idct_cospi_8_24_d_kernel(s0, s1, cospi_0_8_16_24, t32); + wrap_low_4x2(t32, d0, d1); +} + +static INLINE void idct_cospi_8_24_neg_d(const int16x4_t s0, const int16x4_t s1, + const int16x4_t cospi_0_8_16_24, + int16x4_t *const d0, + int16x4_t *const d1) { + int32x4_t t32[2]; + + idct_cospi_8_24_d_kernel(s0, s1, cospi_0_8_16_24, t32); + t32[1] = vnegq_s32(t32[1]); + wrap_low_4x2(t32, d0, d1); +} + +static INLINE void idct_cospi_16_16_d(const int16x4_t s0, const int16x4_t s1, + const int16x4_t cospi_0_8_16_24, + int16x4_t *const d0, + int16x4_t *const d1) { + int32x4_t t32[3]; + + t32[2] = vmull_lane_s16(s1, cospi_0_8_16_24, 2); + t32[0] = vmlsl_lane_s16(t32[2], s0, cospi_0_8_16_24, 2); + t32[1] = vmlal_lane_s16(t32[2], s0, cospi_0_8_16_24, 2); + wrap_low_4x2(t32, d0, d1); +} + +void vpx_idct16x16_256_add_half1d(const void *const input, int16_t *output, + void *const dest, const int stride, + const int highbd_flag) { + const int16x8_t cospis0 = vld1q_s16(kCospi); + const int16x8_t cospis1 = vld1q_s16(kCospi + 8); + const int16x4_t cospi_0_8_16_24 = vget_low_s16(cospis0); + const int16x4_t cospi_4_12_20N_28 = vget_high_s16(cospis0); + const int16x4_t cospi_2_30_10_22 = vget_low_s16(cospis1); + const int16x4_t cospi_6_26N_14_18N = vget_high_s16(cospis1); + int16x8_t in[16], step1[16], step2[16], out[16]; + + // Load input (16x8) + if (output) { + const tran_low_t *inputT = (const tran_low_t *)input; + in[0] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[8] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[1] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[9] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[2] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[10] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[3] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[11] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[4] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[12] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[5] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[13] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[6] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[14] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[7] = load_tran_low_to_s16q(inputT); + inputT += 8; + in[15] = load_tran_low_to_s16q(inputT); + } else { + const int16_t *inputT = (const int16_t *)input; + in[0] = vld1q_s16(inputT); + inputT += 8; + in[8] = vld1q_s16(inputT); + inputT += 8; + in[1] = vld1q_s16(inputT); + inputT += 8; + in[9] = vld1q_s16(inputT); + inputT += 8; + in[2] = vld1q_s16(inputT); + inputT += 8; + in[10] = vld1q_s16(inputT); + inputT += 8; + in[3] = vld1q_s16(inputT); + inputT += 8; + in[11] = vld1q_s16(inputT); + inputT += 8; + in[4] = vld1q_s16(inputT); + inputT += 8; + in[12] = vld1q_s16(inputT); + inputT += 8; + in[5] = vld1q_s16(inputT); + inputT += 8; + in[13] = vld1q_s16(inputT); + inputT += 8; + in[6] = vld1q_s16(inputT); + inputT += 8; + in[14] = vld1q_s16(inputT); + inputT += 8; + in[7] = vld1q_s16(inputT); + inputT += 8; + in[15] = vld1q_s16(inputT); + } + + // Transpose + transpose_s16_8x8(&in[0], &in[1], &in[2], &in[3], &in[4], &in[5], &in[6], + &in[7]); + transpose_s16_8x8(&in[8], &in[9], &in[10], &in[11], &in[12], &in[13], &in[14], + &in[15]); + + // stage 1 + step1[0] = in[0 / 2]; + step1[1] = in[16 / 2]; + step1[2] = in[8 / 2]; + step1[3] = in[24 / 2]; + step1[4] = in[4 / 2]; + step1[5] = in[20 / 2]; + step1[6] = in[12 / 2]; + step1[7] = in[28 / 2]; + step1[8] = in[2 / 2]; + step1[9] = in[18 / 2]; + step1[10] = in[10 / 2]; + step1[11] = in[26 / 2]; + step1[12] = in[6 / 2]; + step1[13] = in[22 / 2]; + step1[14] = in[14 / 2]; + step1[15] = in[30 / 2]; + + // stage 2 + step2[0] = step1[0]; + step2[1] = step1[1]; + step2[2] = step1[2]; + step2[3] = step1[3]; + step2[4] = step1[4]; + step2[5] = step1[5]; + step2[6] = step1[6]; + step2[7] = step1[7]; + idct_cospi_2_30(step1[8], step1[15], cospi_2_30_10_22, &step2[8], &step2[15]); + idct_cospi_14_18(step1[9], step1[14], cospi_6_26N_14_18N, &step2[9], + &step2[14]); + idct_cospi_10_22(step1[10], step1[13], cospi_2_30_10_22, &step2[10], + &step2[13]); + idct_cospi_6_26(step1[11], step1[12], cospi_6_26N_14_18N, &step2[11], + &step2[12]); + + // stage 3 + step1[0] = step2[0]; + step1[1] = step2[1]; + step1[2] = step2[2]; + step1[3] = step2[3]; + idct_cospi_4_28(step2[4], step2[7], cospi_4_12_20N_28, &step1[4], &step1[7]); + idct_cospi_12_20(step2[5], step2[6], cospi_4_12_20N_28, &step1[5], &step1[6]); + step1[8] = vaddq_s16(step2[8], step2[9]); + step1[9] = vsubq_s16(step2[8], step2[9]); + step1[10] = vsubq_s16(step2[11], step2[10]); + step1[11] = vaddq_s16(step2[11], step2[10]); + step1[12] = vaddq_s16(step2[12], step2[13]); + step1[13] = vsubq_s16(step2[12], step2[13]); + step1[14] = vsubq_s16(step2[15], step2[14]); + step1[15] = vaddq_s16(step2[15], step2[14]); + + // stage 4 + idct_cospi_16_16_q(step1[1], step1[0], cospi_0_8_16_24, &step2[1], &step2[0]); + idct_cospi_8_24_q(step1[2], step1[3], cospi_0_8_16_24, &step2[2], &step2[3]); + step2[4] = vaddq_s16(step1[4], step1[5]); + step2[5] = vsubq_s16(step1[4], step1[5]); + step2[6] = vsubq_s16(step1[7], step1[6]); + step2[7] = vaddq_s16(step1[7], step1[6]); + step2[8] = step1[8]; + idct_cospi_8_24_q(step1[14], step1[9], cospi_0_8_16_24, &step2[9], + &step2[14]); + idct_cospi_8_24_neg_q(step1[13], step1[10], cospi_0_8_16_24, &step2[13], + &step2[10]); + step2[11] = step1[11]; + step2[12] = step1[12]; + step2[15] = step1[15]; + + // stage 5 + step1[0] = vaddq_s16(step2[0], step2[3]); + step1[1] = vaddq_s16(step2[1], step2[2]); + step1[2] = vsubq_s16(step2[1], step2[2]); + step1[3] = vsubq_s16(step2[0], step2[3]); + step1[4] = step2[4]; + idct_cospi_16_16_q(step2[5], step2[6], cospi_0_8_16_24, &step1[5], &step1[6]); + step1[7] = step2[7]; + step1[8] = vaddq_s16(step2[8], step2[11]); + step1[9] = vaddq_s16(step2[9], step2[10]); + step1[10] = vsubq_s16(step2[9], step2[10]); + step1[11] = vsubq_s16(step2[8], step2[11]); + step1[12] = vsubq_s16(step2[15], step2[12]); + step1[13] = vsubq_s16(step2[14], step2[13]); + step1[14] = vaddq_s16(step2[14], step2[13]); + step1[15] = vaddq_s16(step2[15], step2[12]); + + // stage 6 + step2[0] = vaddq_s16(step1[0], step1[7]); + step2[1] = vaddq_s16(step1[1], step1[6]); + step2[2] = vaddq_s16(step1[2], step1[5]); + step2[3] = vaddq_s16(step1[3], step1[4]); + step2[4] = vsubq_s16(step1[3], step1[4]); + step2[5] = vsubq_s16(step1[2], step1[5]); + step2[6] = vsubq_s16(step1[1], step1[6]); + step2[7] = vsubq_s16(step1[0], step1[7]); + idct_cospi_16_16_q(step1[10], step1[13], cospi_0_8_16_24, &step2[10], + &step2[13]); + idct_cospi_16_16_q(step1[11], step1[12], cospi_0_8_16_24, &step2[11], + &step2[12]); + step2[8] = step1[8]; + step2[9] = step1[9]; + step2[14] = step1[14]; + step2[15] = step1[15]; + + // stage 7 + idct16x16_add_stage7(step2, out); + + if (output) { + idct16x16_store_pass1(out, output); + } else { + if (highbd_flag) { + idct16x16_add_store_bd8(out, dest, stride); + } else { + idct16x16_add_store(out, dest, stride); + } + } +} + +void vpx_idct16x16_38_add_half1d(const void *const input, int16_t *const output, + void *const dest, const int stride, + const int highbd_flag) { + const int16x8_t cospis0 = vld1q_s16(kCospi); + const int16x8_t cospis1 = vld1q_s16(kCospi + 8); + const int16x8_t cospisd0 = vaddq_s16(cospis0, cospis0); + const int16x8_t cospisd1 = vaddq_s16(cospis1, cospis1); + const int16x4_t cospi_0_8_16_24 = vget_low_s16(cospis0); + const int16x4_t cospid_0_8_16_24 = vget_low_s16(cospisd0); + const int16x4_t cospid_4_12_20N_28 = vget_high_s16(cospisd0); + const int16x4_t cospid_2_30_10_22 = vget_low_s16(cospisd1); + const int16x4_t cospid_6_26_14_18N = vget_high_s16(cospisd1); + int16x8_t in[8], step1[16], step2[16], out[16]; + + // Load input (8x8) + if (output) { + const tran_low_t *inputT = (const tran_low_t *)input; + in[0] = load_tran_low_to_s16q(inputT); + inputT += 16; + in[1] = load_tran_low_to_s16q(inputT); + inputT += 16; + in[2] = load_tran_low_to_s16q(inputT); + inputT += 16; + in[3] = load_tran_low_to_s16q(inputT); + inputT += 16; + in[4] = load_tran_low_to_s16q(inputT); + inputT += 16; + in[5] = load_tran_low_to_s16q(inputT); + inputT += 16; + in[6] = load_tran_low_to_s16q(inputT); + inputT += 16; + in[7] = load_tran_low_to_s16q(inputT); + } else { + const int16_t *inputT = (const int16_t *)input; + in[0] = vld1q_s16(inputT); + inputT += 16; + in[1] = vld1q_s16(inputT); + inputT += 16; + in[2] = vld1q_s16(inputT); + inputT += 16; + in[3] = vld1q_s16(inputT); + inputT += 16; + in[4] = vld1q_s16(inputT); + inputT += 16; + in[5] = vld1q_s16(inputT); + inputT += 16; + in[6] = vld1q_s16(inputT); + inputT += 16; + in[7] = vld1q_s16(inputT); + } + + // Transpose + transpose_s16_8x8(&in[0], &in[1], &in[2], &in[3], &in[4], &in[5], &in[6], + &in[7]); + + // stage 1 + step1[0] = in[0 / 2]; + step1[2] = in[8 / 2]; + step1[4] = in[4 / 2]; + step1[6] = in[12 / 2]; + step1[8] = in[2 / 2]; + step1[10] = in[10 / 2]; + step1[12] = in[6 / 2]; + step1[14] = in[14 / 2]; // 0 in pass 1 + + // stage 2 + step2[0] = step1[0]; + step2[2] = step1[2]; + step2[4] = step1[4]; + step2[6] = step1[6]; + step2[8] = vqrdmulhq_lane_s16(step1[8], cospid_2_30_10_22, 1); + step2[9] = vqrdmulhq_lane_s16(step1[14], cospid_6_26_14_18N, 3); + step2[10] = vqrdmulhq_lane_s16(step1[10], cospid_2_30_10_22, 3); + step2[11] = vqrdmulhq_lane_s16(step1[12], cospid_6_26_14_18N, 1); + step2[12] = vqrdmulhq_lane_s16(step1[12], cospid_6_26_14_18N, 0); + step2[13] = vqrdmulhq_lane_s16(step1[10], cospid_2_30_10_22, 2); + step2[14] = vqrdmulhq_lane_s16(step1[14], cospid_6_26_14_18N, 2); + step2[15] = vqrdmulhq_lane_s16(step1[8], cospid_2_30_10_22, 0); + + // stage 3 + step1[0] = step2[0]; + step1[2] = step2[2]; + step1[4] = vqrdmulhq_lane_s16(step2[4], cospid_4_12_20N_28, 3); + step1[5] = vqrdmulhq_lane_s16(step2[6], cospid_4_12_20N_28, 2); + step1[6] = vqrdmulhq_lane_s16(step2[6], cospid_4_12_20N_28, 1); + step1[7] = vqrdmulhq_lane_s16(step2[4], cospid_4_12_20N_28, 0); + step1[8] = vaddq_s16(step2[8], step2[9]); + step1[9] = vsubq_s16(step2[8], step2[9]); + step1[10] = vsubq_s16(step2[11], step2[10]); + step1[11] = vaddq_s16(step2[11], step2[10]); + step1[12] = vaddq_s16(step2[12], step2[13]); + step1[13] = vsubq_s16(step2[12], step2[13]); + step1[14] = vsubq_s16(step2[15], step2[14]); + step1[15] = vaddq_s16(step2[15], step2[14]); + + // stage 4 + step2[0] = step2[1] = vqrdmulhq_lane_s16(step1[0], cospid_0_8_16_24, 2); + step2[2] = vqrdmulhq_lane_s16(step1[2], cospid_0_8_16_24, 3); + step2[3] = vqrdmulhq_lane_s16(step1[2], cospid_0_8_16_24, 1); + step2[4] = vaddq_s16(step1[4], step1[5]); + step2[5] = vsubq_s16(step1[4], step1[5]); + step2[6] = vsubq_s16(step1[7], step1[6]); + step2[7] = vaddq_s16(step1[7], step1[6]); + step2[8] = step1[8]; + idct_cospi_8_24_q(step1[14], step1[9], cospi_0_8_16_24, &step2[9], + &step2[14]); + idct_cospi_8_24_neg_q(step1[13], step1[10], cospi_0_8_16_24, &step2[13], + &step2[10]); + step2[11] = step1[11]; + step2[12] = step1[12]; + step2[15] = step1[15]; + + // stage 5 + step1[0] = vaddq_s16(step2[0], step2[3]); + step1[1] = vaddq_s16(step2[1], step2[2]); + step1[2] = vsubq_s16(step2[1], step2[2]); + step1[3] = vsubq_s16(step2[0], step2[3]); + step1[4] = step2[4]; + idct_cospi_16_16_q(step2[5], step2[6], cospi_0_8_16_24, &step1[5], &step1[6]); + step1[7] = step2[7]; + step1[8] = vaddq_s16(step2[8], step2[11]); + step1[9] = vaddq_s16(step2[9], step2[10]); + step1[10] = vsubq_s16(step2[9], step2[10]); + step1[11] = vsubq_s16(step2[8], step2[11]); + step1[12] = vsubq_s16(step2[15], step2[12]); + step1[13] = vsubq_s16(step2[14], step2[13]); + step1[14] = vaddq_s16(step2[14], step2[13]); + step1[15] = vaddq_s16(step2[15], step2[12]); + + // stage 6 + step2[0] = vaddq_s16(step1[0], step1[7]); + step2[1] = vaddq_s16(step1[1], step1[6]); + step2[2] = vaddq_s16(step1[2], step1[5]); + step2[3] = vaddq_s16(step1[3], step1[4]); + step2[4] = vsubq_s16(step1[3], step1[4]); + step2[5] = vsubq_s16(step1[2], step1[5]); + step2[6] = vsubq_s16(step1[1], step1[6]); + step2[7] = vsubq_s16(step1[0], step1[7]); + idct_cospi_16_16_q(step1[10], step1[13], cospi_0_8_16_24, &step2[10], + &step2[13]); + idct_cospi_16_16_q(step1[11], step1[12], cospi_0_8_16_24, &step2[11], + &step2[12]); + step2[8] = step1[8]; + step2[9] = step1[9]; + step2[14] = step1[14]; + step2[15] = step1[15]; + + // stage 7 + idct16x16_add_stage7(step2, out); + + if (output) { + idct16x16_store_pass1(out, output); + } else { + if (highbd_flag) { + idct16x16_add_store_bd8(out, dest, stride); + } else { + idct16x16_add_store(out, dest, stride); + } + } +} + +void vpx_idct16x16_10_add_half1d_pass1(const tran_low_t *input, + int16_t *output) { + const int16x8_t cospis0 = vld1q_s16(kCospi); + const int16x8_t cospis1 = vld1q_s16(kCospi + 8); + const int16x8_t cospisd0 = vaddq_s16(cospis0, cospis0); + const int16x8_t cospisd1 = vaddq_s16(cospis1, cospis1); + const int16x4_t cospi_0_8_16_24 = vget_low_s16(cospis0); + const int16x4_t cospid_0_8_16_24 = vget_low_s16(cospisd0); + const int16x4_t cospid_4_12_20N_28 = vget_high_s16(cospisd0); + const int16x4_t cospid_2_30_10_22 = vget_low_s16(cospisd1); + const int16x4_t cospid_6_26_14_18N = vget_high_s16(cospisd1); + int16x4_t in[4], step1[16], step2[16], out[16]; + + // Load input (4x4) + in[0] = load_tran_low_to_s16d(input); + input += 16; + in[1] = load_tran_low_to_s16d(input); + input += 16; + in[2] = load_tran_low_to_s16d(input); + input += 16; + in[3] = load_tran_low_to_s16d(input); + + // Transpose + transpose_s16_4x4d(&in[0], &in[1], &in[2], &in[3]); + + // stage 1 + step1[0] = in[0 / 2]; + step1[4] = in[4 / 2]; + step1[8] = in[2 / 2]; + step1[12] = in[6 / 2]; + + // stage 2 + step2[0] = step1[0]; + step2[4] = step1[4]; + step2[8] = vqrdmulh_lane_s16(step1[8], cospid_2_30_10_22, 1); + step2[11] = vqrdmulh_lane_s16(step1[12], cospid_6_26_14_18N, 1); + step2[12] = vqrdmulh_lane_s16(step1[12], cospid_6_26_14_18N, 0); + step2[15] = vqrdmulh_lane_s16(step1[8], cospid_2_30_10_22, 0); + + // stage 3 + step1[0] = step2[0]; + step1[4] = vqrdmulh_lane_s16(step2[4], cospid_4_12_20N_28, 3); + step1[7] = vqrdmulh_lane_s16(step2[4], cospid_4_12_20N_28, 0); + step1[8] = step2[8]; + step1[9] = step2[8]; + step1[10] = step2[11]; + step1[11] = step2[11]; + step1[12] = step2[12]; + step1[13] = step2[12]; + step1[14] = step2[15]; + step1[15] = step2[15]; + + // stage 4 + step2[0] = step2[1] = vqrdmulh_lane_s16(step1[0], cospid_0_8_16_24, 2); + step2[4] = step1[4]; + step2[5] = step1[4]; + step2[6] = step1[7]; + step2[7] = step1[7]; + step2[8] = step1[8]; + idct_cospi_8_24_d(step1[14], step1[9], cospi_0_8_16_24, &step2[9], + &step2[14]); + idct_cospi_8_24_neg_d(step1[13], step1[10], cospi_0_8_16_24, &step2[13], + &step2[10]); + step2[11] = step1[11]; + step2[12] = step1[12]; + step2[15] = step1[15]; + + // stage 5 + step1[0] = step2[0]; + step1[1] = step2[1]; + step1[2] = step2[1]; + step1[3] = step2[0]; + step1[4] = step2[4]; + idct_cospi_16_16_d(step2[5], step2[6], cospi_0_8_16_24, &step1[5], &step1[6]); + step1[7] = step2[7]; + step1[8] = vadd_s16(step2[8], step2[11]); + step1[9] = vadd_s16(step2[9], step2[10]); + step1[10] = vsub_s16(step2[9], step2[10]); + step1[11] = vsub_s16(step2[8], step2[11]); + step1[12] = vsub_s16(step2[15], step2[12]); + step1[13] = vsub_s16(step2[14], step2[13]); + step1[14] = vadd_s16(step2[14], step2[13]); + step1[15] = vadd_s16(step2[15], step2[12]); + + // stage 6 + step2[0] = vadd_s16(step1[0], step1[7]); + step2[1] = vadd_s16(step1[1], step1[6]); + step2[2] = vadd_s16(step1[2], step1[5]); + step2[3] = vadd_s16(step1[3], step1[4]); + step2[4] = vsub_s16(step1[3], step1[4]); + step2[5] = vsub_s16(step1[2], step1[5]); + step2[6] = vsub_s16(step1[1], step1[6]); + step2[7] = vsub_s16(step1[0], step1[7]); + idct_cospi_16_16_d(step1[10], step1[13], cospi_0_8_16_24, &step2[10], + &step2[13]); + idct_cospi_16_16_d(step1[11], step1[12], cospi_0_8_16_24, &step2[11], + &step2[12]); + step2[8] = step1[8]; + step2[9] = step1[9]; + step2[14] = step1[14]; + step2[15] = step1[15]; + + // stage 7 + out[0] = vadd_s16(step2[0], step2[15]); + out[1] = vadd_s16(step2[1], step2[14]); + out[2] = vadd_s16(step2[2], step2[13]); + out[3] = vadd_s16(step2[3], step2[12]); + out[4] = vadd_s16(step2[4], step2[11]); + out[5] = vadd_s16(step2[5], step2[10]); + out[6] = vadd_s16(step2[6], step2[9]); + out[7] = vadd_s16(step2[7], step2[8]); + out[8] = vsub_s16(step2[7], step2[8]); + out[9] = vsub_s16(step2[6], step2[9]); + out[10] = vsub_s16(step2[5], step2[10]); + out[11] = vsub_s16(step2[4], step2[11]); + out[12] = vsub_s16(step2[3], step2[12]); + out[13] = vsub_s16(step2[2], step2[13]); + out[14] = vsub_s16(step2[1], step2[14]); + out[15] = vsub_s16(step2[0], step2[15]); + + // pass 1: save the result into output + vst1_s16(output, out[0]); + output += 4; + vst1_s16(output, out[1]); + output += 4; + vst1_s16(output, out[2]); + output += 4; + vst1_s16(output, out[3]); + output += 4; + vst1_s16(output, out[4]); + output += 4; + vst1_s16(output, out[5]); + output += 4; + vst1_s16(output, out[6]); + output += 4; + vst1_s16(output, out[7]); + output += 4; + vst1_s16(output, out[8]); + output += 4; + vst1_s16(output, out[9]); + output += 4; + vst1_s16(output, out[10]); + output += 4; + vst1_s16(output, out[11]); + output += 4; + vst1_s16(output, out[12]); + output += 4; + vst1_s16(output, out[13]); + output += 4; + vst1_s16(output, out[14]); + output += 4; + vst1_s16(output, out[15]); +} + +void vpx_idct16x16_10_add_half1d_pass2(const int16_t *input, + int16_t *const output, void *const dest, + const int stride, + const int highbd_flag) { + const int16x8_t cospis0 = vld1q_s16(kCospi); + const int16x8_t cospis1 = vld1q_s16(kCospi + 8); + const int16x8_t cospisd0 = vaddq_s16(cospis0, cospis0); + const int16x8_t cospisd1 = vaddq_s16(cospis1, cospis1); + const int16x4_t cospi_0_8_16_24 = vget_low_s16(cospis0); + const int16x4_t cospid_0_8_16_24 = vget_low_s16(cospisd0); + const int16x4_t cospid_4_12_20N_28 = vget_high_s16(cospisd0); + const int16x4_t cospid_2_30_10_22 = vget_low_s16(cospisd1); + const int16x4_t cospid_6_26_14_18N = vget_high_s16(cospisd1); + int16x4_t ind[8]; + int16x8_t in[4], step1[16], step2[16], out[16]; + + // Load input (4x8) + ind[0] = vld1_s16(input); + input += 4; + ind[1] = vld1_s16(input); + input += 4; + ind[2] = vld1_s16(input); + input += 4; + ind[3] = vld1_s16(input); + input += 4; + ind[4] = vld1_s16(input); + input += 4; + ind[5] = vld1_s16(input); + input += 4; + ind[6] = vld1_s16(input); + input += 4; + ind[7] = vld1_s16(input); + + // Transpose + transpose_s16_4x8(ind[0], ind[1], ind[2], ind[3], ind[4], ind[5], ind[6], + ind[7], &in[0], &in[1], &in[2], &in[3]); + + // stage 1 + step1[0] = in[0 / 2]; + step1[4] = in[4 / 2]; + step1[8] = in[2 / 2]; + step1[12] = in[6 / 2]; + + // stage 2 + step2[0] = step1[0]; + step2[4] = step1[4]; + step2[8] = vqrdmulhq_lane_s16(step1[8], cospid_2_30_10_22, 1); + step2[11] = vqrdmulhq_lane_s16(step1[12], cospid_6_26_14_18N, 1); + step2[12] = vqrdmulhq_lane_s16(step1[12], cospid_6_26_14_18N, 0); + step2[15] = vqrdmulhq_lane_s16(step1[8], cospid_2_30_10_22, 0); + + // stage 3 + step1[0] = step2[0]; + step1[4] = vqrdmulhq_lane_s16(step2[4], cospid_4_12_20N_28, 3); + step1[7] = vqrdmulhq_lane_s16(step2[4], cospid_4_12_20N_28, 0); + step1[8] = step2[8]; + step1[9] = step2[8]; + step1[10] = step2[11]; + step1[11] = step2[11]; + step1[12] = step2[12]; + step1[13] = step2[12]; + step1[14] = step2[15]; + step1[15] = step2[15]; + + // stage 4 + step2[0] = step2[1] = vqrdmulhq_lane_s16(step1[0], cospid_0_8_16_24, 2); + step2[4] = step1[4]; + step2[5] = step1[4]; + step2[6] = step1[7]; + step2[7] = step1[7]; + step2[8] = step1[8]; + idct_cospi_8_24_q(step1[14], step1[9], cospi_0_8_16_24, &step2[9], + &step2[14]); + idct_cospi_8_24_neg_q(step1[13], step1[10], cospi_0_8_16_24, &step2[13], + &step2[10]); + step2[11] = step1[11]; + step2[12] = step1[12]; + step2[15] = step1[15]; + + // stage 5 + step1[0] = step2[0]; + step1[1] = step2[1]; + step1[2] = step2[1]; + step1[3] = step2[0]; + step1[4] = step2[4]; + idct_cospi_16_16_q(step2[5], step2[6], cospi_0_8_16_24, &step1[5], &step1[6]); + step1[7] = step2[7]; + step1[8] = vaddq_s16(step2[8], step2[11]); + step1[9] = vaddq_s16(step2[9], step2[10]); + step1[10] = vsubq_s16(step2[9], step2[10]); + step1[11] = vsubq_s16(step2[8], step2[11]); + step1[12] = vsubq_s16(step2[15], step2[12]); + step1[13] = vsubq_s16(step2[14], step2[13]); + step1[14] = vaddq_s16(step2[14], step2[13]); + step1[15] = vaddq_s16(step2[15], step2[12]); + + // stage 6 + step2[0] = vaddq_s16(step1[0], step1[7]); + step2[1] = vaddq_s16(step1[1], step1[6]); + step2[2] = vaddq_s16(step1[2], step1[5]); + step2[3] = vaddq_s16(step1[3], step1[4]); + step2[4] = vsubq_s16(step1[3], step1[4]); + step2[5] = vsubq_s16(step1[2], step1[5]); + step2[6] = vsubq_s16(step1[1], step1[6]); + step2[7] = vsubq_s16(step1[0], step1[7]); + idct_cospi_16_16_q(step1[10], step1[13], cospi_0_8_16_24, &step2[10], + &step2[13]); + idct_cospi_16_16_q(step1[11], step1[12], cospi_0_8_16_24, &step2[11], + &step2[12]); + step2[8] = step1[8]; + step2[9] = step1[9]; + step2[14] = step1[14]; + step2[15] = step1[15]; + + // stage 7 + idct16x16_add_stage7(step2, out); + + if (output) { + idct16x16_store_pass1(out, output); + } else { + if (highbd_flag) { + idct16x16_add_store_bd8(out, dest, stride); + } else { + idct16x16_add_store(out, dest, stride); + } + } +} + +void vpx_idct16x16_256_add_neon(const tran_low_t *input, uint8_t *dest, + int stride) { + int16_t row_idct_output[16 * 16]; + + // pass 1 + // Parallel idct on the upper 8 rows + vpx_idct16x16_256_add_half1d(input, row_idct_output, dest, stride, 0); + + // Parallel idct on the lower 8 rows + vpx_idct16x16_256_add_half1d(input + 8 * 16, row_idct_output + 8, dest, + stride, 0); + + // pass 2 + // Parallel idct to get the left 8 columns + vpx_idct16x16_256_add_half1d(row_idct_output, NULL, dest, stride, 0); + + // Parallel idct to get the right 8 columns + vpx_idct16x16_256_add_half1d(row_idct_output + 16 * 8, NULL, dest + 8, stride, + 0); +} + +void vpx_idct16x16_38_add_neon(const tran_low_t *input, uint8_t *dest, + int stride) { + int16_t row_idct_output[16 * 16]; + + // pass 1 + // Parallel idct on the upper 8 rows + vpx_idct16x16_38_add_half1d(input, row_idct_output, dest, stride, 0); + + // pass 2 + // Parallel idct to get the left 8 columns + vpx_idct16x16_38_add_half1d(row_idct_output, NULL, dest, stride, 0); + + // Parallel idct to get the right 8 columns + vpx_idct16x16_38_add_half1d(row_idct_output + 16 * 8, NULL, dest + 8, stride, + 0); +} + +void vpx_idct16x16_10_add_neon(const tran_low_t *input, uint8_t *dest, + int stride) { + int16_t row_idct_output[4 * 16]; + + // pass 1 + // Parallel idct on the upper 8 rows + vpx_idct16x16_10_add_half1d_pass1(input, row_idct_output); + + // pass 2 + // Parallel idct to get the left 8 columns + vpx_idct16x16_10_add_half1d_pass2(row_idct_output, NULL, dest, stride, 0); + + // Parallel idct to get the right 8 columns + vpx_idct16x16_10_add_half1d_pass2(row_idct_output + 4 * 8, NULL, dest + 8, + stride, 0); +} |