diff options
Diffstat (limited to 'libvpx/vpx_dsp/arm/fwd_txfm_neon.c')
| -rw-r--r-- | libvpx/vpx_dsp/arm/fwd_txfm_neon.c | 212 |
1 files changed, 35 insertions, 177 deletions
diff --git a/libvpx/vpx_dsp/arm/fwd_txfm_neon.c b/libvpx/vpx_dsp/arm/fwd_txfm_neon.c index 374a262b9..d9161c6d3 100644 --- a/libvpx/vpx_dsp/arm/fwd_txfm_neon.c +++ b/libvpx/vpx_dsp/arm/fwd_txfm_neon.c @@ -15,196 +15,54 @@ #include "vpx_dsp/txfm_common.h" #include "vpx_dsp/vpx_dsp_common.h" #include "vpx_dsp/arm/idct_neon.h" +#include "vpx_dsp/arm/fdct_neon.h" #include "vpx_dsp/arm/mem_neon.h" void vpx_fdct8x8_neon(const int16_t *input, tran_low_t *final_output, int stride) { int i; // stage 1 - int16x8_t input_0 = vshlq_n_s16(vld1q_s16(&input[0 * stride]), 2); - int16x8_t input_1 = vshlq_n_s16(vld1q_s16(&input[1 * stride]), 2); - int16x8_t input_2 = vshlq_n_s16(vld1q_s16(&input[2 * stride]), 2); - int16x8_t input_3 = vshlq_n_s16(vld1q_s16(&input[3 * stride]), 2); - int16x8_t input_4 = vshlq_n_s16(vld1q_s16(&input[4 * stride]), 2); - int16x8_t input_5 = vshlq_n_s16(vld1q_s16(&input[5 * stride]), 2); - int16x8_t input_6 = vshlq_n_s16(vld1q_s16(&input[6 * stride]), 2); - int16x8_t input_7 = vshlq_n_s16(vld1q_s16(&input[7 * stride]), 2); + int16x8_t in[8]; + in[0] = vshlq_n_s16(vld1q_s16(&input[0 * stride]), 2); + in[1] = vshlq_n_s16(vld1q_s16(&input[1 * stride]), 2); + in[2] = vshlq_n_s16(vld1q_s16(&input[2 * stride]), 2); + in[3] = vshlq_n_s16(vld1q_s16(&input[3 * stride]), 2); + in[4] = vshlq_n_s16(vld1q_s16(&input[4 * stride]), 2); + in[5] = vshlq_n_s16(vld1q_s16(&input[5 * stride]), 2); + in[6] = vshlq_n_s16(vld1q_s16(&input[6 * stride]), 2); + in[7] = vshlq_n_s16(vld1q_s16(&input[7 * stride]), 2); for (i = 0; i < 2; ++i) { - int16x8_t out_0, out_1, out_2, out_3, out_4, out_5, out_6, out_7; - const int16x8_t v_s0 = vaddq_s16(input_0, input_7); - const int16x8_t v_s1 = vaddq_s16(input_1, input_6); - const int16x8_t v_s2 = vaddq_s16(input_2, input_5); - const int16x8_t v_s3 = vaddq_s16(input_3, input_4); - const int16x8_t v_s4 = vsubq_s16(input_3, input_4); - const int16x8_t v_s5 = vsubq_s16(input_2, input_5); - const int16x8_t v_s6 = vsubq_s16(input_1, input_6); - const int16x8_t v_s7 = vsubq_s16(input_0, input_7); - // fdct4(step, step); - int16x8_t v_x0 = vaddq_s16(v_s0, v_s3); - int16x8_t v_x1 = vaddq_s16(v_s1, v_s2); - int16x8_t v_x2 = vsubq_s16(v_s1, v_s2); - int16x8_t v_x3 = vsubq_s16(v_s0, v_s3); - // fdct4(step, step); - int32x4_t v_t0_lo = vaddl_s16(vget_low_s16(v_x0), vget_low_s16(v_x1)); - int32x4_t v_t0_hi = vaddl_s16(vget_high_s16(v_x0), vget_high_s16(v_x1)); - int32x4_t v_t1_lo = vsubl_s16(vget_low_s16(v_x0), vget_low_s16(v_x1)); - int32x4_t v_t1_hi = vsubl_s16(vget_high_s16(v_x0), vget_high_s16(v_x1)); - int32x4_t v_t2_lo = vmull_n_s16(vget_low_s16(v_x2), cospi_24_64); - int32x4_t v_t2_hi = vmull_n_s16(vget_high_s16(v_x2), cospi_24_64); - int32x4_t v_t3_lo = vmull_n_s16(vget_low_s16(v_x3), cospi_24_64); - int32x4_t v_t3_hi = vmull_n_s16(vget_high_s16(v_x3), cospi_24_64); - v_t2_lo = vmlal_n_s16(v_t2_lo, vget_low_s16(v_x3), cospi_8_64); - v_t2_hi = vmlal_n_s16(v_t2_hi, vget_high_s16(v_x3), cospi_8_64); - v_t3_lo = vmlsl_n_s16(v_t3_lo, vget_low_s16(v_x2), cospi_8_64); - v_t3_hi = vmlsl_n_s16(v_t3_hi, vget_high_s16(v_x2), cospi_8_64); - v_t0_lo = vmulq_n_s32(v_t0_lo, cospi_16_64); - v_t0_hi = vmulq_n_s32(v_t0_hi, cospi_16_64); - v_t1_lo = vmulq_n_s32(v_t1_lo, cospi_16_64); - v_t1_hi = vmulq_n_s32(v_t1_hi, cospi_16_64); - { - const int16x4_t a = vrshrn_n_s32(v_t0_lo, DCT_CONST_BITS); - const int16x4_t b = vrshrn_n_s32(v_t0_hi, DCT_CONST_BITS); - const int16x4_t c = vrshrn_n_s32(v_t1_lo, DCT_CONST_BITS); - const int16x4_t d = vrshrn_n_s32(v_t1_hi, DCT_CONST_BITS); - const int16x4_t e = vrshrn_n_s32(v_t2_lo, DCT_CONST_BITS); - const int16x4_t f = vrshrn_n_s32(v_t2_hi, DCT_CONST_BITS); - const int16x4_t g = vrshrn_n_s32(v_t3_lo, DCT_CONST_BITS); - const int16x4_t h = vrshrn_n_s32(v_t3_hi, DCT_CONST_BITS); - out_0 = vcombine_s16(a, c); // 00 01 02 03 40 41 42 43 - out_2 = vcombine_s16(e, g); // 20 21 22 23 60 61 62 63 - out_4 = vcombine_s16(b, d); // 04 05 06 07 44 45 46 47 - out_6 = vcombine_s16(f, h); // 24 25 26 27 64 65 66 67 - } - // Stage 2 - v_x0 = vsubq_s16(v_s6, v_s5); - v_x1 = vaddq_s16(v_s6, v_s5); - v_t0_lo = vmull_n_s16(vget_low_s16(v_x0), cospi_16_64); - v_t0_hi = vmull_n_s16(vget_high_s16(v_x0), cospi_16_64); - v_t1_lo = vmull_n_s16(vget_low_s16(v_x1), cospi_16_64); - v_t1_hi = vmull_n_s16(vget_high_s16(v_x1), cospi_16_64); - { - const int16x4_t a = vrshrn_n_s32(v_t0_lo, DCT_CONST_BITS); - const int16x4_t b = vrshrn_n_s32(v_t0_hi, DCT_CONST_BITS); - const int16x4_t c = vrshrn_n_s32(v_t1_lo, DCT_CONST_BITS); - const int16x4_t d = vrshrn_n_s32(v_t1_hi, DCT_CONST_BITS); - const int16x8_t ab = vcombine_s16(a, b); - const int16x8_t cd = vcombine_s16(c, d); - // Stage 3 - v_x0 = vaddq_s16(v_s4, ab); - v_x1 = vsubq_s16(v_s4, ab); - v_x2 = vsubq_s16(v_s7, cd); - v_x3 = vaddq_s16(v_s7, cd); - } - // Stage 4 - v_t0_lo = vmull_n_s16(vget_low_s16(v_x3), cospi_4_64); - v_t0_hi = vmull_n_s16(vget_high_s16(v_x3), cospi_4_64); - v_t0_lo = vmlal_n_s16(v_t0_lo, vget_low_s16(v_x0), cospi_28_64); - v_t0_hi = vmlal_n_s16(v_t0_hi, vget_high_s16(v_x0), cospi_28_64); - v_t1_lo = vmull_n_s16(vget_low_s16(v_x1), cospi_12_64); - v_t1_hi = vmull_n_s16(vget_high_s16(v_x1), cospi_12_64); - v_t1_lo = vmlal_n_s16(v_t1_lo, vget_low_s16(v_x2), cospi_20_64); - v_t1_hi = vmlal_n_s16(v_t1_hi, vget_high_s16(v_x2), cospi_20_64); - v_t2_lo = vmull_n_s16(vget_low_s16(v_x2), cospi_12_64); - v_t2_hi = vmull_n_s16(vget_high_s16(v_x2), cospi_12_64); - v_t2_lo = vmlsl_n_s16(v_t2_lo, vget_low_s16(v_x1), cospi_20_64); - v_t2_hi = vmlsl_n_s16(v_t2_hi, vget_high_s16(v_x1), cospi_20_64); - v_t3_lo = vmull_n_s16(vget_low_s16(v_x3), cospi_28_64); - v_t3_hi = vmull_n_s16(vget_high_s16(v_x3), cospi_28_64); - v_t3_lo = vmlsl_n_s16(v_t3_lo, vget_low_s16(v_x0), cospi_4_64); - v_t3_hi = vmlsl_n_s16(v_t3_hi, vget_high_s16(v_x0), cospi_4_64); - { - const int16x4_t a = vrshrn_n_s32(v_t0_lo, DCT_CONST_BITS); - const int16x4_t b = vrshrn_n_s32(v_t0_hi, DCT_CONST_BITS); - const int16x4_t c = vrshrn_n_s32(v_t1_lo, DCT_CONST_BITS); - const int16x4_t d = vrshrn_n_s32(v_t1_hi, DCT_CONST_BITS); - const int16x4_t e = vrshrn_n_s32(v_t2_lo, DCT_CONST_BITS); - const int16x4_t f = vrshrn_n_s32(v_t2_hi, DCT_CONST_BITS); - const int16x4_t g = vrshrn_n_s32(v_t3_lo, DCT_CONST_BITS); - const int16x4_t h = vrshrn_n_s32(v_t3_hi, DCT_CONST_BITS); - out_1 = vcombine_s16(a, c); // 10 11 12 13 50 51 52 53 - out_3 = vcombine_s16(e, g); // 30 31 32 33 70 71 72 73 - out_5 = vcombine_s16(b, d); // 14 15 16 17 54 55 56 57 - out_7 = vcombine_s16(f, h); // 34 35 36 37 74 75 76 77 - } - // transpose 8x8 - // Can't use transpose_s16_8x8() because the values are arranged in two 4x8 - // columns. - { - // 00 01 02 03 40 41 42 43 - // 10 11 12 13 50 51 52 53 - // 20 21 22 23 60 61 62 63 - // 30 31 32 33 70 71 72 73 - // 04 05 06 07 44 45 46 47 - // 14 15 16 17 54 55 56 57 - // 24 25 26 27 64 65 66 67 - // 34 35 36 37 74 75 76 77 - const int32x4x2_t r02_s32 = - vtrnq_s32(vreinterpretq_s32_s16(out_0), vreinterpretq_s32_s16(out_2)); - const int32x4x2_t r13_s32 = - vtrnq_s32(vreinterpretq_s32_s16(out_1), vreinterpretq_s32_s16(out_3)); - const int32x4x2_t r46_s32 = - vtrnq_s32(vreinterpretq_s32_s16(out_4), vreinterpretq_s32_s16(out_6)); - const int32x4x2_t r57_s32 = - vtrnq_s32(vreinterpretq_s32_s16(out_5), vreinterpretq_s32_s16(out_7)); - const int16x8x2_t r01_s16 = - vtrnq_s16(vreinterpretq_s16_s32(r02_s32.val[0]), - vreinterpretq_s16_s32(r13_s32.val[0])); - const int16x8x2_t r23_s16 = - vtrnq_s16(vreinterpretq_s16_s32(r02_s32.val[1]), - vreinterpretq_s16_s32(r13_s32.val[1])); - const int16x8x2_t r45_s16 = - vtrnq_s16(vreinterpretq_s16_s32(r46_s32.val[0]), - vreinterpretq_s16_s32(r57_s32.val[0])); - const int16x8x2_t r67_s16 = - vtrnq_s16(vreinterpretq_s16_s32(r46_s32.val[1]), - vreinterpretq_s16_s32(r57_s32.val[1])); - input_0 = r01_s16.val[0]; - input_1 = r01_s16.val[1]; - input_2 = r23_s16.val[0]; - input_3 = r23_s16.val[1]; - input_4 = r45_s16.val[0]; - input_5 = r45_s16.val[1]; - input_6 = r67_s16.val[0]; - input_7 = r67_s16.val[1]; - // 00 10 20 30 40 50 60 70 - // 01 11 21 31 41 51 61 71 - // 02 12 22 32 42 52 62 72 - // 03 13 23 33 43 53 63 73 - // 04 14 24 34 44 54 64 74 - // 05 15 25 35 45 55 65 75 - // 06 16 26 36 46 56 66 76 - // 07 17 27 37 47 57 67 77 - } + vpx_fdct8x8_pass1_neon(in); } // for { // from vpx_dct_sse2.c // Post-condition (division by two) // division of two 16 bits signed numbers using shifts // n / 2 = (n - (n >> 15)) >> 1 - const int16x8_t sign_in0 = vshrq_n_s16(input_0, 15); - const int16x8_t sign_in1 = vshrq_n_s16(input_1, 15); - const int16x8_t sign_in2 = vshrq_n_s16(input_2, 15); - const int16x8_t sign_in3 = vshrq_n_s16(input_3, 15); - const int16x8_t sign_in4 = vshrq_n_s16(input_4, 15); - const int16x8_t sign_in5 = vshrq_n_s16(input_5, 15); - const int16x8_t sign_in6 = vshrq_n_s16(input_6, 15); - const int16x8_t sign_in7 = vshrq_n_s16(input_7, 15); - input_0 = vhsubq_s16(input_0, sign_in0); - input_1 = vhsubq_s16(input_1, sign_in1); - input_2 = vhsubq_s16(input_2, sign_in2); - input_3 = vhsubq_s16(input_3, sign_in3); - input_4 = vhsubq_s16(input_4, sign_in4); - input_5 = vhsubq_s16(input_5, sign_in5); - input_6 = vhsubq_s16(input_6, sign_in6); - input_7 = vhsubq_s16(input_7, sign_in7); + const int16x8_t sign_in0 = vshrq_n_s16(in[0], 15); + const int16x8_t sign_in1 = vshrq_n_s16(in[1], 15); + const int16x8_t sign_in2 = vshrq_n_s16(in[2], 15); + const int16x8_t sign_in3 = vshrq_n_s16(in[3], 15); + const int16x8_t sign_in4 = vshrq_n_s16(in[4], 15); + const int16x8_t sign_in5 = vshrq_n_s16(in[5], 15); + const int16x8_t sign_in6 = vshrq_n_s16(in[6], 15); + const int16x8_t sign_in7 = vshrq_n_s16(in[7], 15); + in[0] = vhsubq_s16(in[0], sign_in0); + in[1] = vhsubq_s16(in[1], sign_in1); + in[2] = vhsubq_s16(in[2], sign_in2); + in[3] = vhsubq_s16(in[3], sign_in3); + in[4] = vhsubq_s16(in[4], sign_in4); + in[5] = vhsubq_s16(in[5], sign_in5); + in[6] = vhsubq_s16(in[6], sign_in6); + in[7] = vhsubq_s16(in[7], sign_in7); // store results - store_s16q_to_tran_low(final_output + 0 * 8, input_0); - store_s16q_to_tran_low(final_output + 1 * 8, input_1); - store_s16q_to_tran_low(final_output + 2 * 8, input_2); - store_s16q_to_tran_low(final_output + 3 * 8, input_3); - store_s16q_to_tran_low(final_output + 4 * 8, input_4); - store_s16q_to_tran_low(final_output + 5 * 8, input_5); - store_s16q_to_tran_low(final_output + 6 * 8, input_6); - store_s16q_to_tran_low(final_output + 7 * 8, input_7); + store_s16q_to_tran_low(final_output + 0 * 8, in[0]); + store_s16q_to_tran_low(final_output + 1 * 8, in[1]); + store_s16q_to_tran_low(final_output + 2 * 8, in[2]); + store_s16q_to_tran_low(final_output + 3 * 8, in[3]); + store_s16q_to_tran_low(final_output + 4 * 8, in[4]); + store_s16q_to_tran_low(final_output + 5 * 8, in[5]); + store_s16q_to_tran_low(final_output + 6 * 8, in[6]); + store_s16q_to_tran_low(final_output + 7 * 8, in[7]); } } |