diff options
Diffstat (limited to 'source/libvpx/vp8/common/arm/neon/idct_dequant_full_2x_neon.c')
| -rw-r--r-- | source/libvpx/vp8/common/arm/neon/idct_dequant_full_2x_neon.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/source/libvpx/vp8/common/arm/neon/idct_dequant_full_2x_neon.c b/source/libvpx/vp8/common/arm/neon/idct_dequant_full_2x_neon.c deleted file mode 100644 index a60ed46..0000000 --- a/source/libvpx/vp8/common/arm/neon/idct_dequant_full_2x_neon.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * 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> - -static const int16_t cospi8sqrt2minus1 = 20091; -static const int16_t sinpi8sqrt2 = 17734; -// because the lowest bit in 0x8a8c is 0, we can pre-shift this - -void idct_dequant_full_2x_neon( - int16_t *q, - int16_t *dq, - unsigned char *dst, - int stride) { - unsigned char *dst0, *dst1; - int32x2_t d28, d29, d30, d31; - int16x8_t q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11; - int16x8_t qEmpty = vdupq_n_s16(0); - int32x4x2_t q2tmp0, q2tmp1; - int16x8x2_t q2tmp2, q2tmp3; - int16x4_t dLow0, dLow1, dHigh0, dHigh1; - - d28 = d29 = d30 = d31 = vdup_n_s32(0); - - // load dq - q0 = vld1q_s16(dq); - dq += 8; - q1 = vld1q_s16(dq); - - // load q - q2 = vld1q_s16(q); - vst1q_s16(q, qEmpty); - q += 8; - q3 = vld1q_s16(q); - vst1q_s16(q, qEmpty); - q += 8; - q4 = vld1q_s16(q); - vst1q_s16(q, qEmpty); - q += 8; - q5 = vld1q_s16(q); - vst1q_s16(q, qEmpty); - - // load src from dst - dst0 = dst; - dst1 = dst + 4; - d28 = vld1_lane_s32((const int32_t *)dst0, d28, 0); - dst0 += stride; - d28 = vld1_lane_s32((const int32_t *)dst1, d28, 1); - dst1 += stride; - d29 = vld1_lane_s32((const int32_t *)dst0, d29, 0); - dst0 += stride; - d29 = vld1_lane_s32((const int32_t *)dst1, d29, 1); - dst1 += stride; - - d30 = vld1_lane_s32((const int32_t *)dst0, d30, 0); - dst0 += stride; - d30 = vld1_lane_s32((const int32_t *)dst1, d30, 1); - dst1 += stride; - d31 = vld1_lane_s32((const int32_t *)dst0, d31, 0); - d31 = vld1_lane_s32((const int32_t *)dst1, d31, 1); - - q2 = vmulq_s16(q2, q0); - q3 = vmulq_s16(q3, q1); - q4 = vmulq_s16(q4, q0); - q5 = vmulq_s16(q5, q1); - - // vswp - dLow0 = vget_low_s16(q2); - dHigh0 = vget_high_s16(q2); - dLow1 = vget_low_s16(q4); - dHigh1 = vget_high_s16(q4); - q2 = vcombine_s16(dLow0, dLow1); - q4 = vcombine_s16(dHigh0, dHigh1); - - dLow0 = vget_low_s16(q3); - dHigh0 = vget_high_s16(q3); - dLow1 = vget_low_s16(q5); - dHigh1 = vget_high_s16(q5); - q3 = vcombine_s16(dLow0, dLow1); - q5 = vcombine_s16(dHigh0, dHigh1); - - q6 = vqdmulhq_n_s16(q4, sinpi8sqrt2); - q7 = vqdmulhq_n_s16(q5, sinpi8sqrt2); - q8 = vqdmulhq_n_s16(q4, cospi8sqrt2minus1); - q9 = vqdmulhq_n_s16(q5, cospi8sqrt2minus1); - - q10 = vqaddq_s16(q2, q3); - q11 = vqsubq_s16(q2, q3); - - q8 = vshrq_n_s16(q8, 1); - q9 = vshrq_n_s16(q9, 1); - - q4 = vqaddq_s16(q4, q8); - q5 = vqaddq_s16(q5, q9); - - q2 = vqsubq_s16(q6, q5); - q3 = vqaddq_s16(q7, q4); - - q4 = vqaddq_s16(q10, q3); - q5 = vqaddq_s16(q11, q2); - q6 = vqsubq_s16(q11, q2); - q7 = vqsubq_s16(q10, q3); - - q2tmp0 = vtrnq_s32(vreinterpretq_s32_s16(q4), vreinterpretq_s32_s16(q6)); - q2tmp1 = vtrnq_s32(vreinterpretq_s32_s16(q5), vreinterpretq_s32_s16(q7)); - q2tmp2 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[0]), - vreinterpretq_s16_s32(q2tmp1.val[0])); - q2tmp3 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[1]), - vreinterpretq_s16_s32(q2tmp1.val[1])); - - // loop 2 - q8 = vqdmulhq_n_s16(q2tmp2.val[1], sinpi8sqrt2); - q9 = vqdmulhq_n_s16(q2tmp3.val[1], sinpi8sqrt2); - q10 = vqdmulhq_n_s16(q2tmp2.val[1], cospi8sqrt2minus1); - q11 = vqdmulhq_n_s16(q2tmp3.val[1], cospi8sqrt2minus1); - - q2 = vqaddq_s16(q2tmp2.val[0], q2tmp3.val[0]); - q3 = vqsubq_s16(q2tmp2.val[0], q2tmp3.val[0]); - - q10 = vshrq_n_s16(q10, 1); - q11 = vshrq_n_s16(q11, 1); - - q10 = vqaddq_s16(q2tmp2.val[1], q10); - q11 = vqaddq_s16(q2tmp3.val[1], q11); - - q8 = vqsubq_s16(q8, q11); - q9 = vqaddq_s16(q9, q10); - - q4 = vqaddq_s16(q2, q9); - q5 = vqaddq_s16(q3, q8); - q6 = vqsubq_s16(q3, q8); - q7 = vqsubq_s16(q2, q9); - - q4 = vrshrq_n_s16(q4, 3); - q5 = vrshrq_n_s16(q5, 3); - q6 = vrshrq_n_s16(q6, 3); - q7 = vrshrq_n_s16(q7, 3); - - q2tmp0 = vtrnq_s32(vreinterpretq_s32_s16(q4), vreinterpretq_s32_s16(q6)); - q2tmp1 = vtrnq_s32(vreinterpretq_s32_s16(q5), vreinterpretq_s32_s16(q7)); - q2tmp2 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[0]), - vreinterpretq_s16_s32(q2tmp1.val[0])); - q2tmp3 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[1]), - vreinterpretq_s16_s32(q2tmp1.val[1])); - - q4 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp2.val[0]), - vreinterpret_u8_s32(d28))); - q5 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp2.val[1]), - vreinterpret_u8_s32(d29))); - q6 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp3.val[0]), - vreinterpret_u8_s32(d30))); - q7 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp3.val[1]), - vreinterpret_u8_s32(d31))); - - d28 = vreinterpret_s32_u8(vqmovun_s16(q4)); - d29 = vreinterpret_s32_u8(vqmovun_s16(q5)); - d30 = vreinterpret_s32_u8(vqmovun_s16(q6)); - d31 = vreinterpret_s32_u8(vqmovun_s16(q7)); - - dst0 = dst; - dst1 = dst + 4; - vst1_lane_s32((int32_t *)dst0, d28, 0); - dst0 += stride; - vst1_lane_s32((int32_t *)dst1, d28, 1); - dst1 += stride; - vst1_lane_s32((int32_t *)dst0, d29, 0); - dst0 += stride; - vst1_lane_s32((int32_t *)dst1, d29, 1); - dst1 += stride; - - vst1_lane_s32((int32_t *)dst0, d30, 0); - dst0 += stride; - vst1_lane_s32((int32_t *)dst1, d30, 1); - dst1 += stride; - vst1_lane_s32((int32_t *)dst0, d31, 0); - vst1_lane_s32((int32_t *)dst1, d31, 1); - return; -} |