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Diffstat (limited to 'media/libvpx/libvpx/vp8/encoder/arm/neon/shortfdct_neon.c')
| -rw-r--r-- | media/libvpx/libvpx/vp8/encoder/arm/neon/shortfdct_neon.c | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp8/encoder/arm/neon/shortfdct_neon.c b/media/libvpx/libvpx/vp8/encoder/arm/neon/shortfdct_neon.c new file mode 100644 index 0000000000..99dff6b520 --- /dev/null +++ b/media/libvpx/libvpx/vp8/encoder/arm/neon/shortfdct_neon.c @@ -0,0 +1,261 @@ +/* + * 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 "./vp8_rtcd.h" + +void vp8_short_fdct4x4_neon(int16_t *input, int16_t *output, int pitch) { + int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16; + int16x4_t d16s16, d17s16, d26s16, dEmptys16; + uint16x4_t d4u16; + int16x8_t q0s16, q1s16; + int32x4_t q9s32, q10s32, q11s32, q12s32; + int16x4x2_t v2tmp0, v2tmp1; + int32x2x2_t v2tmp2, v2tmp3; + + d16s16 = vdup_n_s16(5352); + d17s16 = vdup_n_s16(2217); + q9s32 = vdupq_n_s32(14500); + q10s32 = vdupq_n_s32(7500); + q11s32 = vdupq_n_s32(12000); + q12s32 = vdupq_n_s32(51000); + + // Part one + pitch >>= 1; + d0s16 = vld1_s16(input); + input += pitch; + d1s16 = vld1_s16(input); + input += pitch; + d2s16 = vld1_s16(input); + input += pitch; + d3s16 = vld1_s16(input); + + v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16), vreinterpret_s32_s16(d2s16)); + v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16), vreinterpret_s32_s16(d3s16)); + v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]), // d0 + vreinterpret_s16_s32(v2tmp3.val[0])); // d1 + v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]), // d2 + vreinterpret_s16_s32(v2tmp3.val[1])); // d3 + + d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]); + d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]); + d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]); + d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]); + + d4s16 = vshl_n_s16(d4s16, 3); + d5s16 = vshl_n_s16(d5s16, 3); + d6s16 = vshl_n_s16(d6s16, 3); + d7s16 = vshl_n_s16(d7s16, 3); + + d0s16 = vadd_s16(d4s16, d5s16); + d2s16 = vsub_s16(d4s16, d5s16); + + q9s32 = vmlal_s16(q9s32, d7s16, d16s16); + q10s32 = vmlal_s16(q10s32, d7s16, d17s16); + q9s32 = vmlal_s16(q9s32, d6s16, d17s16); + q10s32 = vmlsl_s16(q10s32, d6s16, d16s16); + + d1s16 = vshrn_n_s32(q9s32, 12); + d3s16 = vshrn_n_s32(q10s32, 12); + + // Part two + v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16), vreinterpret_s32_s16(d2s16)); + v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16), vreinterpret_s32_s16(d3s16)); + v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]), // d0 + vreinterpret_s16_s32(v2tmp3.val[0])); // d1 + v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]), // d2 + vreinterpret_s16_s32(v2tmp3.val[1])); // d3 + + d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]); + d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]); + d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]); + d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]); + + d26s16 = vdup_n_s16(7); + d4s16 = vadd_s16(d4s16, d26s16); + + d0s16 = vadd_s16(d4s16, d5s16); + d2s16 = vsub_s16(d4s16, d5s16); + + q11s32 = vmlal_s16(q11s32, d7s16, d16s16); + q12s32 = vmlal_s16(q12s32, d7s16, d17s16); + + dEmptys16 = vdup_n_s16(0); + d4u16 = vceq_s16(d7s16, dEmptys16); + + d0s16 = vshr_n_s16(d0s16, 4); + d2s16 = vshr_n_s16(d2s16, 4); + + q11s32 = vmlal_s16(q11s32, d6s16, d17s16); + q12s32 = vmlsl_s16(q12s32, d6s16, d16s16); + + d4u16 = vmvn_u16(d4u16); + d1s16 = vshrn_n_s32(q11s32, 16); + d1s16 = vsub_s16(d1s16, vreinterpret_s16_u16(d4u16)); + d3s16 = vshrn_n_s32(q12s32, 16); + + q0s16 = vcombine_s16(d0s16, d1s16); + q1s16 = vcombine_s16(d2s16, d3s16); + + vst1q_s16(output, q0s16); + vst1q_s16(output + 8, q1s16); + return; +} + +void vp8_short_fdct8x4_neon(int16_t *input, int16_t *output, int pitch) { + int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16; + int16x4_t d16s16, d17s16, d26s16, d27s16, d28s16, d29s16; + uint16x4_t d28u16, d29u16; + uint16x8_t q14u16; + int16x8_t q0s16, q1s16, q2s16, q3s16; + int16x8_t q11s16, q12s16, q13s16, q14s16, q15s16, qEmptys16; + int32x4_t q9s32, q10s32, q11s32, q12s32; + int16x8x2_t v2tmp0, v2tmp1; + int32x4x2_t v2tmp2, v2tmp3; + + d16s16 = vdup_n_s16(5352); + d17s16 = vdup_n_s16(2217); + q9s32 = vdupq_n_s32(14500); + q10s32 = vdupq_n_s32(7500); + + // Part one + pitch >>= 1; + q0s16 = vld1q_s16(input); + input += pitch; + q1s16 = vld1q_s16(input); + input += pitch; + q2s16 = vld1q_s16(input); + input += pitch; + q3s16 = vld1q_s16(input); + + v2tmp2 = + vtrnq_s32(vreinterpretq_s32_s16(q0s16), vreinterpretq_s32_s16(q2s16)); + v2tmp3 = + vtrnq_s32(vreinterpretq_s32_s16(q1s16), vreinterpretq_s32_s16(q3s16)); + v2tmp0 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[0]), // q0 + vreinterpretq_s16_s32(v2tmp3.val[0])); // q1 + v2tmp1 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[1]), // q2 + vreinterpretq_s16_s32(v2tmp3.val[1])); // q3 + + q11s16 = vaddq_s16(v2tmp0.val[0], v2tmp1.val[1]); + q12s16 = vaddq_s16(v2tmp0.val[1], v2tmp1.val[0]); + q13s16 = vsubq_s16(v2tmp0.val[1], v2tmp1.val[0]); + q14s16 = vsubq_s16(v2tmp0.val[0], v2tmp1.val[1]); + + q11s16 = vshlq_n_s16(q11s16, 3); + q12s16 = vshlq_n_s16(q12s16, 3); + q13s16 = vshlq_n_s16(q13s16, 3); + q14s16 = vshlq_n_s16(q14s16, 3); + + q0s16 = vaddq_s16(q11s16, q12s16); + q2s16 = vsubq_s16(q11s16, q12s16); + + q11s32 = q9s32; + q12s32 = q10s32; + + d26s16 = vget_low_s16(q13s16); + d27s16 = vget_high_s16(q13s16); + d28s16 = vget_low_s16(q14s16); + d29s16 = vget_high_s16(q14s16); + + q9s32 = vmlal_s16(q9s32, d28s16, d16s16); + q10s32 = vmlal_s16(q10s32, d28s16, d17s16); + q11s32 = vmlal_s16(q11s32, d29s16, d16s16); + q12s32 = vmlal_s16(q12s32, d29s16, d17s16); + + q9s32 = vmlal_s16(q9s32, d26s16, d17s16); + q10s32 = vmlsl_s16(q10s32, d26s16, d16s16); + q11s32 = vmlal_s16(q11s32, d27s16, d17s16); + q12s32 = vmlsl_s16(q12s32, d27s16, d16s16); + + d2s16 = vshrn_n_s32(q9s32, 12); + d6s16 = vshrn_n_s32(q10s32, 12); + d3s16 = vshrn_n_s32(q11s32, 12); + d7s16 = vshrn_n_s32(q12s32, 12); + q1s16 = vcombine_s16(d2s16, d3s16); + q3s16 = vcombine_s16(d6s16, d7s16); + + // Part two + q9s32 = vdupq_n_s32(12000); + q10s32 = vdupq_n_s32(51000); + + v2tmp2 = + vtrnq_s32(vreinterpretq_s32_s16(q0s16), vreinterpretq_s32_s16(q2s16)); + v2tmp3 = + vtrnq_s32(vreinterpretq_s32_s16(q1s16), vreinterpretq_s32_s16(q3s16)); + v2tmp0 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[0]), // q0 + vreinterpretq_s16_s32(v2tmp3.val[0])); // q1 + v2tmp1 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[1]), // q2 + vreinterpretq_s16_s32(v2tmp3.val[1])); // q3 + + q11s16 = vaddq_s16(v2tmp0.val[0], v2tmp1.val[1]); + q12s16 = vaddq_s16(v2tmp0.val[1], v2tmp1.val[0]); + q13s16 = vsubq_s16(v2tmp0.val[1], v2tmp1.val[0]); + q14s16 = vsubq_s16(v2tmp0.val[0], v2tmp1.val[1]); + + q15s16 = vdupq_n_s16(7); + q11s16 = vaddq_s16(q11s16, q15s16); + q0s16 = vaddq_s16(q11s16, q12s16); + q1s16 = vsubq_s16(q11s16, q12s16); + + q11s32 = q9s32; + q12s32 = q10s32; + + d0s16 = vget_low_s16(q0s16); + d1s16 = vget_high_s16(q0s16); + d2s16 = vget_low_s16(q1s16); + d3s16 = vget_high_s16(q1s16); + + d0s16 = vshr_n_s16(d0s16, 4); + d4s16 = vshr_n_s16(d1s16, 4); + d2s16 = vshr_n_s16(d2s16, 4); + d6s16 = vshr_n_s16(d3s16, 4); + + d26s16 = vget_low_s16(q13s16); + d27s16 = vget_high_s16(q13s16); + d28s16 = vget_low_s16(q14s16); + d29s16 = vget_high_s16(q14s16); + + q9s32 = vmlal_s16(q9s32, d28s16, d16s16); + q10s32 = vmlal_s16(q10s32, d28s16, d17s16); + q11s32 = vmlal_s16(q11s32, d29s16, d16s16); + q12s32 = vmlal_s16(q12s32, d29s16, d17s16); + + q9s32 = vmlal_s16(q9s32, d26s16, d17s16); + q10s32 = vmlsl_s16(q10s32, d26s16, d16s16); + q11s32 = vmlal_s16(q11s32, d27s16, d17s16); + q12s32 = vmlsl_s16(q12s32, d27s16, d16s16); + + d1s16 = vshrn_n_s32(q9s32, 16); + d3s16 = vshrn_n_s32(q10s32, 16); + d5s16 = vshrn_n_s32(q11s32, 16); + d7s16 = vshrn_n_s32(q12s32, 16); + + qEmptys16 = vdupq_n_s16(0); + q14u16 = vceqq_s16(q14s16, qEmptys16); + q14u16 = vmvnq_u16(q14u16); + + d28u16 = vget_low_u16(q14u16); + d29u16 = vget_high_u16(q14u16); + d1s16 = vsub_s16(d1s16, vreinterpret_s16_u16(d28u16)); + d5s16 = vsub_s16(d5s16, vreinterpret_s16_u16(d29u16)); + + q0s16 = vcombine_s16(d0s16, d1s16); + q1s16 = vcombine_s16(d2s16, d3s16); + q2s16 = vcombine_s16(d4s16, d5s16); + q3s16 = vcombine_s16(d6s16, d7s16); + + vst1q_s16(output, q0s16); + vst1q_s16(output + 8, q1s16); + vst1q_s16(output + 16, q2s16); + vst1q_s16(output + 24, q3s16); + return; +} |