diff options
Diffstat (limited to 'thirdparty/libvpx/vpx_dsp/inv_txfm.c')
| -rw-r--r-- | thirdparty/libvpx/vpx_dsp/inv_txfm.c | 2518 |
1 files changed, 0 insertions, 2518 deletions
diff --git a/thirdparty/libvpx/vpx_dsp/inv_txfm.c b/thirdparty/libvpx/vpx_dsp/inv_txfm.c deleted file mode 100644 index e18d31d7aa..0000000000 --- a/thirdparty/libvpx/vpx_dsp/inv_txfm.c +++ /dev/null @@ -1,2518 +0,0 @@ -/* - * Copyright (c) 2015 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 <math.h> -#include <string.h> - -#include "./vpx_dsp_rtcd.h" -#include "vpx_dsp/inv_txfm.h" - -void vpx_iwht4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride) { -/* 4-point reversible, orthonormal inverse Walsh-Hadamard in 3.5 adds, - 0.5 shifts per pixel. */ - int i; - tran_low_t output[16]; - tran_high_t a1, b1, c1, d1, e1; - const tran_low_t *ip = input; - tran_low_t *op = output; - - for (i = 0; i < 4; i++) { - a1 = ip[0] >> UNIT_QUANT_SHIFT; - c1 = ip[1] >> UNIT_QUANT_SHIFT; - d1 = ip[2] >> UNIT_QUANT_SHIFT; - b1 = ip[3] >> UNIT_QUANT_SHIFT; - a1 += c1; - d1 -= b1; - e1 = (a1 - d1) >> 1; - b1 = e1 - b1; - c1 = e1 - c1; - a1 -= b1; - d1 += c1; - op[0] = WRAPLOW(a1); - op[1] = WRAPLOW(b1); - op[2] = WRAPLOW(c1); - op[3] = WRAPLOW(d1); - ip += 4; - op += 4; - } - - ip = output; - for (i = 0; i < 4; i++) { - a1 = ip[4 * 0]; - c1 = ip[4 * 1]; - d1 = ip[4 * 2]; - b1 = ip[4 * 3]; - a1 += c1; - d1 -= b1; - e1 = (a1 - d1) >> 1; - b1 = e1 - b1; - c1 = e1 - c1; - a1 -= b1; - d1 += c1; - dest[stride * 0] = clip_pixel_add(dest[stride * 0], WRAPLOW(a1)); - dest[stride * 1] = clip_pixel_add(dest[stride * 1], WRAPLOW(b1)); - dest[stride * 2] = clip_pixel_add(dest[stride * 2], WRAPLOW(c1)); - dest[stride * 3] = clip_pixel_add(dest[stride * 3], WRAPLOW(d1)); - - ip++; - dest++; - } -} - -void vpx_iwht4x4_1_add_c(const tran_low_t *in, uint8_t *dest, int dest_stride) { - int i; - tran_high_t a1, e1; - tran_low_t tmp[4]; - const tran_low_t *ip = in; - tran_low_t *op = tmp; - - a1 = ip[0] >> UNIT_QUANT_SHIFT; - e1 = a1 >> 1; - a1 -= e1; - op[0] = WRAPLOW(a1); - op[1] = op[2] = op[3] = WRAPLOW(e1); - - ip = tmp; - for (i = 0; i < 4; i++) { - e1 = ip[0] >> 1; - a1 = ip[0] - e1; - dest[dest_stride * 0] = clip_pixel_add(dest[dest_stride * 0], a1); - dest[dest_stride * 1] = clip_pixel_add(dest[dest_stride * 1], e1); - dest[dest_stride * 2] = clip_pixel_add(dest[dest_stride * 2], e1); - dest[dest_stride * 3] = clip_pixel_add(dest[dest_stride * 3], e1); - ip++; - dest++; - } -} - -void idct4_c(const tran_low_t *input, tran_low_t *output) { - tran_low_t step[4]; - tran_high_t temp1, temp2; - // stage 1 - temp1 = (input[0] + input[2]) * cospi_16_64; - temp2 = (input[0] - input[2]) * cospi_16_64; - step[0] = WRAPLOW(dct_const_round_shift(temp1)); - step[1] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = input[1] * cospi_24_64 - input[3] * cospi_8_64; - temp2 = input[1] * cospi_8_64 + input[3] * cospi_24_64; - step[2] = WRAPLOW(dct_const_round_shift(temp1)); - step[3] = WRAPLOW(dct_const_round_shift(temp2)); - - // stage 2 - output[0] = WRAPLOW(step[0] + step[3]); - output[1] = WRAPLOW(step[1] + step[2]); - output[2] = WRAPLOW(step[1] - step[2]); - output[3] = WRAPLOW(step[0] - step[3]); -} - -void vpx_idct4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride) { - tran_low_t out[4 * 4]; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[4], temp_out[4]; - - // Rows - for (i = 0; i < 4; ++i) { - idct4_c(input, outptr); - input += 4; - outptr += 4; - } - - // Columns - for (i = 0; i < 4; ++i) { - for (j = 0; j < 4; ++j) - temp_in[j] = out[j * 4 + i]; - idct4_c(temp_in, temp_out); - for (j = 0; j < 4; ++j) { - dest[j * stride + i] = clip_pixel_add(dest[j * stride + i], - ROUND_POWER_OF_TWO(temp_out[j], 4)); - } - } -} - -void vpx_idct4x4_1_add_c(const tran_low_t *input, uint8_t *dest, - int dest_stride) { - int i; - tran_high_t a1; - tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64)); - out = WRAPLOW(dct_const_round_shift(out * cospi_16_64)); - a1 = ROUND_POWER_OF_TWO(out, 4); - - for (i = 0; i < 4; i++) { - dest[0] = clip_pixel_add(dest[0], a1); - dest[1] = clip_pixel_add(dest[1], a1); - dest[2] = clip_pixel_add(dest[2], a1); - dest[3] = clip_pixel_add(dest[3], a1); - dest += dest_stride; - } -} - -void idct8_c(const tran_low_t *input, tran_low_t *output) { - tran_low_t step1[8], step2[8]; - tran_high_t temp1, temp2; - // stage 1 - step1[0] = input[0]; - step1[2] = input[4]; - step1[1] = input[2]; - step1[3] = input[6]; - temp1 = input[1] * cospi_28_64 - input[7] * cospi_4_64; - temp2 = input[1] * cospi_4_64 + input[7] * cospi_28_64; - step1[4] = WRAPLOW(dct_const_round_shift(temp1)); - step1[7] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = input[5] * cospi_12_64 - input[3] * cospi_20_64; - temp2 = input[5] * cospi_20_64 + input[3] * cospi_12_64; - step1[5] = WRAPLOW(dct_const_round_shift(temp1)); - step1[6] = WRAPLOW(dct_const_round_shift(temp2)); - - // stage 2 - temp1 = (step1[0] + step1[2]) * cospi_16_64; - temp2 = (step1[0] - step1[2]) * cospi_16_64; - step2[0] = WRAPLOW(dct_const_round_shift(temp1)); - step2[1] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = step1[1] * cospi_24_64 - step1[3] * cospi_8_64; - temp2 = step1[1] * cospi_8_64 + step1[3] * cospi_24_64; - step2[2] = WRAPLOW(dct_const_round_shift(temp1)); - step2[3] = WRAPLOW(dct_const_round_shift(temp2)); - step2[4] = WRAPLOW(step1[4] + step1[5]); - step2[5] = WRAPLOW(step1[4] - step1[5]); - step2[6] = WRAPLOW(-step1[6] + step1[7]); - step2[7] = WRAPLOW(step1[6] + step1[7]); - - // stage 3 - step1[0] = WRAPLOW(step2[0] + step2[3]); - step1[1] = WRAPLOW(step2[1] + step2[2]); - step1[2] = WRAPLOW(step2[1] - step2[2]); - step1[3] = WRAPLOW(step2[0] - step2[3]); - step1[4] = step2[4]; - temp1 = (step2[6] - step2[5]) * cospi_16_64; - temp2 = (step2[5] + step2[6]) * cospi_16_64; - step1[5] = WRAPLOW(dct_const_round_shift(temp1)); - step1[6] = WRAPLOW(dct_const_round_shift(temp2)); - step1[7] = step2[7]; - - // stage 4 - output[0] = WRAPLOW(step1[0] + step1[7]); - output[1] = WRAPLOW(step1[1] + step1[6]); - output[2] = WRAPLOW(step1[2] + step1[5]); - output[3] = WRAPLOW(step1[3] + step1[4]); - output[4] = WRAPLOW(step1[3] - step1[4]); - output[5] = WRAPLOW(step1[2] - step1[5]); - output[6] = WRAPLOW(step1[1] - step1[6]); - output[7] = WRAPLOW(step1[0] - step1[7]); -} - -void vpx_idct8x8_64_add_c(const tran_low_t *input, uint8_t *dest, int stride) { - tran_low_t out[8 * 8]; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[8], temp_out[8]; - - // First transform rows - for (i = 0; i < 8; ++i) { - idct8_c(input, outptr); - input += 8; - outptr += 8; - } - - // Then transform columns - for (i = 0; i < 8; ++i) { - for (j = 0; j < 8; ++j) - temp_in[j] = out[j * 8 + i]; - idct8_c(temp_in, temp_out); - for (j = 0; j < 8; ++j) { - dest[j * stride + i] = clip_pixel_add(dest[j * stride + i], - ROUND_POWER_OF_TWO(temp_out[j], 5)); - } - } -} - -void vpx_idct8x8_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) { - int i, j; - tran_high_t a1; - tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64)); - out = WRAPLOW(dct_const_round_shift(out * cospi_16_64)); - a1 = ROUND_POWER_OF_TWO(out, 5); - for (j = 0; j < 8; ++j) { - for (i = 0; i < 8; ++i) - dest[i] = clip_pixel_add(dest[i], a1); - dest += stride; - } -} - -void iadst4_c(const tran_low_t *input, tran_low_t *output) { - tran_high_t s0, s1, s2, s3, s4, s5, s6, s7; - - tran_low_t x0 = input[0]; - tran_low_t x1 = input[1]; - tran_low_t x2 = input[2]; - tran_low_t x3 = input[3]; - - if (!(x0 | x1 | x2 | x3)) { - output[0] = output[1] = output[2] = output[3] = 0; - return; - } - - s0 = sinpi_1_9 * x0; - s1 = sinpi_2_9 * x0; - s2 = sinpi_3_9 * x1; - s3 = sinpi_4_9 * x2; - s4 = sinpi_1_9 * x2; - s5 = sinpi_2_9 * x3; - s6 = sinpi_4_9 * x3; - s7 = WRAPLOW(x0 - x2 + x3); - - s0 = s0 + s3 + s5; - s1 = s1 - s4 - s6; - s3 = s2; - s2 = sinpi_3_9 * s7; - - // 1-D transform scaling factor is sqrt(2). - // The overall dynamic range is 14b (input) + 14b (multiplication scaling) - // + 1b (addition) = 29b. - // Hence the output bit depth is 15b. - output[0] = WRAPLOW(dct_const_round_shift(s0 + s3)); - output[1] = WRAPLOW(dct_const_round_shift(s1 + s3)); - output[2] = WRAPLOW(dct_const_round_shift(s2)); - output[3] = WRAPLOW(dct_const_round_shift(s0 + s1 - s3)); -} - -void iadst8_c(const tran_low_t *input, tran_low_t *output) { - int s0, s1, s2, s3, s4, s5, s6, s7; - - tran_high_t x0 = input[7]; - tran_high_t x1 = input[0]; - tran_high_t x2 = input[5]; - tran_high_t x3 = input[2]; - tran_high_t x4 = input[3]; - tran_high_t x5 = input[4]; - tran_high_t x6 = input[1]; - tran_high_t x7 = input[6]; - - if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) { - output[0] = output[1] = output[2] = output[3] = output[4] - = output[5] = output[6] = output[7] = 0; - return; - } - - // stage 1 - s0 = (int)(cospi_2_64 * x0 + cospi_30_64 * x1); - s1 = (int)(cospi_30_64 * x0 - cospi_2_64 * x1); - s2 = (int)(cospi_10_64 * x2 + cospi_22_64 * x3); - s3 = (int)(cospi_22_64 * x2 - cospi_10_64 * x3); - s4 = (int)(cospi_18_64 * x4 + cospi_14_64 * x5); - s5 = (int)(cospi_14_64 * x4 - cospi_18_64 * x5); - s6 = (int)(cospi_26_64 * x6 + cospi_6_64 * x7); - s7 = (int)(cospi_6_64 * x6 - cospi_26_64 * x7); - - x0 = WRAPLOW(dct_const_round_shift(s0 + s4)); - x1 = WRAPLOW(dct_const_round_shift(s1 + s5)); - x2 = WRAPLOW(dct_const_round_shift(s2 + s6)); - x3 = WRAPLOW(dct_const_round_shift(s3 + s7)); - x4 = WRAPLOW(dct_const_round_shift(s0 - s4)); - x5 = WRAPLOW(dct_const_round_shift(s1 - s5)); - x6 = WRAPLOW(dct_const_round_shift(s2 - s6)); - x7 = WRAPLOW(dct_const_round_shift(s3 - s7)); - - // stage 2 - s0 = (int)x0; - s1 = (int)x1; - s2 = (int)x2; - s3 = (int)x3; - s4 = (int)(cospi_8_64 * x4 + cospi_24_64 * x5); - s5 = (int)(cospi_24_64 * x4 - cospi_8_64 * x5); - s6 = (int)(-cospi_24_64 * x6 + cospi_8_64 * x7); - s7 = (int)(cospi_8_64 * x6 + cospi_24_64 * x7); - - x0 = WRAPLOW(s0 + s2); - x1 = WRAPLOW(s1 + s3); - x2 = WRAPLOW(s0 - s2); - x3 = WRAPLOW(s1 - s3); - x4 = WRAPLOW(dct_const_round_shift(s4 + s6)); - x5 = WRAPLOW(dct_const_round_shift(s5 + s7)); - x6 = WRAPLOW(dct_const_round_shift(s4 - s6)); - x7 = WRAPLOW(dct_const_round_shift(s5 - s7)); - - // stage 3 - s2 = (int)(cospi_16_64 * (x2 + x3)); - s3 = (int)(cospi_16_64 * (x2 - x3)); - s6 = (int)(cospi_16_64 * (x6 + x7)); - s7 = (int)(cospi_16_64 * (x6 - x7)); - - x2 = WRAPLOW(dct_const_round_shift(s2)); - x3 = WRAPLOW(dct_const_round_shift(s3)); - x6 = WRAPLOW(dct_const_round_shift(s6)); - x7 = WRAPLOW(dct_const_round_shift(s7)); - - output[0] = WRAPLOW(x0); - output[1] = WRAPLOW(-x4); - output[2] = WRAPLOW(x6); - output[3] = WRAPLOW(-x2); - output[4] = WRAPLOW(x3); - output[5] = WRAPLOW(-x7); - output[6] = WRAPLOW(x5); - output[7] = WRAPLOW(-x1); -} - -void vpx_idct8x8_12_add_c(const tran_low_t *input, uint8_t *dest, int stride) { - tran_low_t out[8 * 8] = { 0 }; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[8], temp_out[8]; - - // First transform rows - // only first 4 row has non-zero coefs - for (i = 0; i < 4; ++i) { - idct8_c(input, outptr); - input += 8; - outptr += 8; - } - - // Then transform columns - for (i = 0; i < 8; ++i) { - for (j = 0; j < 8; ++j) - temp_in[j] = out[j * 8 + i]; - idct8_c(temp_in, temp_out); - for (j = 0; j < 8; ++j) { - dest[j * stride + i] = clip_pixel_add(dest[j * stride + i], - ROUND_POWER_OF_TWO(temp_out[j], 5)); - } - } -} - -void idct16_c(const tran_low_t *input, tran_low_t *output) { - tran_low_t step1[16], step2[16]; - tran_high_t temp1, temp2; - - // stage 1 - step1[0] = input[0/2]; - step1[1] = input[16/2]; - step1[2] = input[8/2]; - step1[3] = input[24/2]; - step1[4] = input[4/2]; - step1[5] = input[20/2]; - step1[6] = input[12/2]; - step1[7] = input[28/2]; - step1[8] = input[2/2]; - step1[9] = input[18/2]; - step1[10] = input[10/2]; - step1[11] = input[26/2]; - step1[12] = input[6/2]; - step1[13] = input[22/2]; - step1[14] = input[14/2]; - step1[15] = input[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]; - - temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64; - temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64; - step2[8] = WRAPLOW(dct_const_round_shift(temp1)); - step2[15] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64; - temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64; - step2[9] = WRAPLOW(dct_const_round_shift(temp1)); - step2[14] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64; - temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64; - step2[10] = WRAPLOW(dct_const_round_shift(temp1)); - step2[13] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64; - temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64; - step2[11] = WRAPLOW(dct_const_round_shift(temp1)); - step2[12] = WRAPLOW(dct_const_round_shift(temp2)); - - // stage 3 - step1[0] = step2[0]; - step1[1] = step2[1]; - step1[2] = step2[2]; - step1[3] = step2[3]; - - temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64; - temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64; - step1[4] = WRAPLOW(dct_const_round_shift(temp1)); - step1[7] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64; - temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64; - step1[5] = WRAPLOW(dct_const_round_shift(temp1)); - step1[6] = WRAPLOW(dct_const_round_shift(temp2)); - - step1[8] = WRAPLOW(step2[8] + step2[9]); - step1[9] = WRAPLOW(step2[8] - step2[9]); - step1[10] = WRAPLOW(-step2[10] + step2[11]); - step1[11] = WRAPLOW(step2[10] + step2[11]); - step1[12] = WRAPLOW(step2[12] + step2[13]); - step1[13] = WRAPLOW(step2[12] - step2[13]); - step1[14] = WRAPLOW(-step2[14] + step2[15]); - step1[15] = WRAPLOW(step2[14] + step2[15]); - - // stage 4 - temp1 = (step1[0] + step1[1]) * cospi_16_64; - temp2 = (step1[0] - step1[1]) * cospi_16_64; - step2[0] = WRAPLOW(dct_const_round_shift(temp1)); - step2[1] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64; - temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64; - step2[2] = WRAPLOW(dct_const_round_shift(temp1)); - step2[3] = WRAPLOW(dct_const_round_shift(temp2)); - step2[4] = WRAPLOW(step1[4] + step1[5]); - step2[5] = WRAPLOW(step1[4] - step1[5]); - step2[6] = WRAPLOW(-step1[6] + step1[7]); - step2[7] = WRAPLOW(step1[6] + step1[7]); - - step2[8] = step1[8]; - step2[15] = step1[15]; - temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64; - temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64; - step2[9] = WRAPLOW(dct_const_round_shift(temp1)); - step2[14] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64; - temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64; - step2[10] = WRAPLOW(dct_const_round_shift(temp1)); - step2[13] = WRAPLOW(dct_const_round_shift(temp2)); - step2[11] = step1[11]; - step2[12] = step1[12]; - - // stage 5 - step1[0] = WRAPLOW(step2[0] + step2[3]); - step1[1] = WRAPLOW(step2[1] + step2[2]); - step1[2] = WRAPLOW(step2[1] - step2[2]); - step1[3] = WRAPLOW(step2[0] - step2[3]); - step1[4] = step2[4]; - temp1 = (step2[6] - step2[5]) * cospi_16_64; - temp2 = (step2[5] + step2[6]) * cospi_16_64; - step1[5] = WRAPLOW(dct_const_round_shift(temp1)); - step1[6] = WRAPLOW(dct_const_round_shift(temp2)); - step1[7] = step2[7]; - - step1[8] = WRAPLOW(step2[8] + step2[11]); - step1[9] = WRAPLOW(step2[9] + step2[10]); - step1[10] = WRAPLOW(step2[9] - step2[10]); - step1[11] = WRAPLOW(step2[8] - step2[11]); - step1[12] = WRAPLOW(-step2[12] + step2[15]); - step1[13] = WRAPLOW(-step2[13] + step2[14]); - step1[14] = WRAPLOW(step2[13] + step2[14]); - step1[15] = WRAPLOW(step2[12] + step2[15]); - - // stage 6 - step2[0] = WRAPLOW(step1[0] + step1[7]); - step2[1] = WRAPLOW(step1[1] + step1[6]); - step2[2] = WRAPLOW(step1[2] + step1[5]); - step2[3] = WRAPLOW(step1[3] + step1[4]); - step2[4] = WRAPLOW(step1[3] - step1[4]); - step2[5] = WRAPLOW(step1[2] - step1[5]); - step2[6] = WRAPLOW(step1[1] - step1[6]); - step2[7] = WRAPLOW(step1[0] - step1[7]); - step2[8] = step1[8]; - step2[9] = step1[9]; - temp1 = (-step1[10] + step1[13]) * cospi_16_64; - temp2 = (step1[10] + step1[13]) * cospi_16_64; - step2[10] = WRAPLOW(dct_const_round_shift(temp1)); - step2[13] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = (-step1[11] + step1[12]) * cospi_16_64; - temp2 = (step1[11] + step1[12]) * cospi_16_64; - step2[11] = WRAPLOW(dct_const_round_shift(temp1)); - step2[12] = WRAPLOW(dct_const_round_shift(temp2)); - step2[14] = step1[14]; - step2[15] = step1[15]; - - // stage 7 - output[0] = WRAPLOW(step2[0] + step2[15]); - output[1] = WRAPLOW(step2[1] + step2[14]); - output[2] = WRAPLOW(step2[2] + step2[13]); - output[3] = WRAPLOW(step2[3] + step2[12]); - output[4] = WRAPLOW(step2[4] + step2[11]); - output[5] = WRAPLOW(step2[5] + step2[10]); - output[6] = WRAPLOW(step2[6] + step2[9]); - output[7] = WRAPLOW(step2[7] + step2[8]); - output[8] = WRAPLOW(step2[7] - step2[8]); - output[9] = WRAPLOW(step2[6] - step2[9]); - output[10] = WRAPLOW(step2[5] - step2[10]); - output[11] = WRAPLOW(step2[4] - step2[11]); - output[12] = WRAPLOW(step2[3] - step2[12]); - output[13] = WRAPLOW(step2[2] - step2[13]); - output[14] = WRAPLOW(step2[1] - step2[14]); - output[15] = WRAPLOW(step2[0] - step2[15]); -} - -void vpx_idct16x16_256_add_c(const tran_low_t *input, uint8_t *dest, - int stride) { - tran_low_t out[16 * 16]; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[16], temp_out[16]; - - // First transform rows - for (i = 0; i < 16; ++i) { - idct16_c(input, outptr); - input += 16; - outptr += 16; - } - - // Then transform columns - for (i = 0; i < 16; ++i) { - for (j = 0; j < 16; ++j) - temp_in[j] = out[j * 16 + i]; - idct16_c(temp_in, temp_out); - for (j = 0; j < 16; ++j) { - dest[j * stride + i] = clip_pixel_add(dest[j * stride + i], - ROUND_POWER_OF_TWO(temp_out[j], 6)); - } - } -} - -void iadst16_c(const tran_low_t *input, tran_low_t *output) { - tran_high_t s0, s1, s2, s3, s4, s5, s6, s7, s8; - tran_high_t s9, s10, s11, s12, s13, s14, s15; - - tran_high_t x0 = input[15]; - tran_high_t x1 = input[0]; - tran_high_t x2 = input[13]; - tran_high_t x3 = input[2]; - tran_high_t x4 = input[11]; - tran_high_t x5 = input[4]; - tran_high_t x6 = input[9]; - tran_high_t x7 = input[6]; - tran_high_t x8 = input[7]; - tran_high_t x9 = input[8]; - tran_high_t x10 = input[5]; - tran_high_t x11 = input[10]; - tran_high_t x12 = input[3]; - tran_high_t x13 = input[12]; - tran_high_t x14 = input[1]; - tran_high_t x15 = input[14]; - - if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7 | x8 - | x9 | x10 | x11 | x12 | x13 | x14 | x15)) { - output[0] = output[1] = output[2] = output[3] = output[4] - = output[5] = output[6] = output[7] = output[8] - = output[9] = output[10] = output[11] = output[12] - = output[13] = output[14] = output[15] = 0; - return; - } - - // stage 1 - s0 = x0 * cospi_1_64 + x1 * cospi_31_64; - s1 = x0 * cospi_31_64 - x1 * cospi_1_64; - s2 = x2 * cospi_5_64 + x3 * cospi_27_64; - s3 = x2 * cospi_27_64 - x3 * cospi_5_64; - s4 = x4 * cospi_9_64 + x5 * cospi_23_64; - s5 = x4 * cospi_23_64 - x5 * cospi_9_64; - s6 = x6 * cospi_13_64 + x7 * cospi_19_64; - s7 = x6 * cospi_19_64 - x7 * cospi_13_64; - s8 = x8 * cospi_17_64 + x9 * cospi_15_64; - s9 = x8 * cospi_15_64 - x9 * cospi_17_64; - s10 = x10 * cospi_21_64 + x11 * cospi_11_64; - s11 = x10 * cospi_11_64 - x11 * cospi_21_64; - s12 = x12 * cospi_25_64 + x13 * cospi_7_64; - s13 = x12 * cospi_7_64 - x13 * cospi_25_64; - s14 = x14 * cospi_29_64 + x15 * cospi_3_64; - s15 = x14 * cospi_3_64 - x15 * cospi_29_64; - - x0 = WRAPLOW(dct_const_round_shift(s0 + s8)); - x1 = WRAPLOW(dct_const_round_shift(s1 + s9)); - x2 = WRAPLOW(dct_const_round_shift(s2 + s10)); - x3 = WRAPLOW(dct_const_round_shift(s3 + s11)); - x4 = WRAPLOW(dct_const_round_shift(s4 + s12)); - x5 = WRAPLOW(dct_const_round_shift(s5 + s13)); - x6 = WRAPLOW(dct_const_round_shift(s6 + s14)); - x7 = WRAPLOW(dct_const_round_shift(s7 + s15)); - x8 = WRAPLOW(dct_const_round_shift(s0 - s8)); - x9 = WRAPLOW(dct_const_round_shift(s1 - s9)); - x10 = WRAPLOW(dct_const_round_shift(s2 - s10)); - x11 = WRAPLOW(dct_const_round_shift(s3 - s11)); - x12 = WRAPLOW(dct_const_round_shift(s4 - s12)); - x13 = WRAPLOW(dct_const_round_shift(s5 - s13)); - x14 = WRAPLOW(dct_const_round_shift(s6 - s14)); - x15 = WRAPLOW(dct_const_round_shift(s7 - s15)); - - // stage 2 - s0 = x0; - s1 = x1; - s2 = x2; - s3 = x3; - s4 = x4; - s5 = x5; - s6 = x6; - s7 = x7; - s8 = x8 * cospi_4_64 + x9 * cospi_28_64; - s9 = x8 * cospi_28_64 - x9 * cospi_4_64; - s10 = x10 * cospi_20_64 + x11 * cospi_12_64; - s11 = x10 * cospi_12_64 - x11 * cospi_20_64; - s12 = - x12 * cospi_28_64 + x13 * cospi_4_64; - s13 = x12 * cospi_4_64 + x13 * cospi_28_64; - s14 = - x14 * cospi_12_64 + x15 * cospi_20_64; - s15 = x14 * cospi_20_64 + x15 * cospi_12_64; - - x0 = WRAPLOW(s0 + s4); - x1 = WRAPLOW(s1 + s5); - x2 = WRAPLOW(s2 + s6); - x3 = WRAPLOW(s3 + s7); - x4 = WRAPLOW(s0 - s4); - x5 = WRAPLOW(s1 - s5); - x6 = WRAPLOW(s2 - s6); - x7 = WRAPLOW(s3 - s7); - x8 = WRAPLOW(dct_const_round_shift(s8 + s12)); - x9 = WRAPLOW(dct_const_round_shift(s9 + s13)); - x10 = WRAPLOW(dct_const_round_shift(s10 + s14)); - x11 = WRAPLOW(dct_const_round_shift(s11 + s15)); - x12 = WRAPLOW(dct_const_round_shift(s8 - s12)); - x13 = WRAPLOW(dct_const_round_shift(s9 - s13)); - x14 = WRAPLOW(dct_const_round_shift(s10 - s14)); - x15 = WRAPLOW(dct_const_round_shift(s11 - s15)); - - // stage 3 - s0 = x0; - s1 = x1; - s2 = x2; - s3 = x3; - s4 = x4 * cospi_8_64 + x5 * cospi_24_64; - s5 = x4 * cospi_24_64 - x5 * cospi_8_64; - s6 = - x6 * cospi_24_64 + x7 * cospi_8_64; - s7 = x6 * cospi_8_64 + x7 * cospi_24_64; - s8 = x8; - s9 = x9; - s10 = x10; - s11 = x11; - s12 = x12 * cospi_8_64 + x13 * cospi_24_64; - s13 = x12 * cospi_24_64 - x13 * cospi_8_64; - s14 = - x14 * cospi_24_64 + x15 * cospi_8_64; - s15 = x14 * cospi_8_64 + x15 * cospi_24_64; - - x0 = WRAPLOW(s0 + s2); - x1 = WRAPLOW(s1 + s3); - x2 = WRAPLOW(s0 - s2); - x3 = WRAPLOW(s1 - s3); - x4 = WRAPLOW(dct_const_round_shift(s4 + s6)); - x5 = WRAPLOW(dct_const_round_shift(s5 + s7)); - x6 = WRAPLOW(dct_const_round_shift(s4 - s6)); - x7 = WRAPLOW(dct_const_round_shift(s5 - s7)); - x8 = WRAPLOW(s8 + s10); - x9 = WRAPLOW(s9 + s11); - x10 = WRAPLOW(s8 - s10); - x11 = WRAPLOW(s9 - s11); - x12 = WRAPLOW(dct_const_round_shift(s12 + s14)); - x13 = WRAPLOW(dct_const_round_shift(s13 + s15)); - x14 = WRAPLOW(dct_const_round_shift(s12 - s14)); - x15 = WRAPLOW(dct_const_round_shift(s13 - s15)); - - // stage 4 - s2 = (- cospi_16_64) * (x2 + x3); - s3 = cospi_16_64 * (x2 - x3); - s6 = cospi_16_64 * (x6 + x7); - s7 = cospi_16_64 * (- x6 + x7); - s10 = cospi_16_64 * (x10 + x11); - s11 = cospi_16_64 * (- x10 + x11); - s14 = (- cospi_16_64) * (x14 + x15); - s15 = cospi_16_64 * (x14 - x15); - - x2 = WRAPLOW(dct_const_round_shift(s2)); - x3 = WRAPLOW(dct_const_round_shift(s3)); - x6 = WRAPLOW(dct_const_round_shift(s6)); - x7 = WRAPLOW(dct_const_round_shift(s7)); - x10 = WRAPLOW(dct_const_round_shift(s10)); - x11 = WRAPLOW(dct_const_round_shift(s11)); - x14 = WRAPLOW(dct_const_round_shift(s14)); - x15 = WRAPLOW(dct_const_round_shift(s15)); - - output[0] = WRAPLOW(x0); - output[1] = WRAPLOW(-x8); - output[2] = WRAPLOW(x12); - output[3] = WRAPLOW(-x4); - output[4] = WRAPLOW(x6); - output[5] = WRAPLOW(x14); - output[6] = WRAPLOW(x10); - output[7] = WRAPLOW(x2); - output[8] = WRAPLOW(x3); - output[9] = WRAPLOW(x11); - output[10] = WRAPLOW(x15); - output[11] = WRAPLOW(x7); - output[12] = WRAPLOW(x5); - output[13] = WRAPLOW(-x13); - output[14] = WRAPLOW(x9); - output[15] = WRAPLOW(-x1); -} - -void vpx_idct16x16_10_add_c(const tran_low_t *input, uint8_t *dest, - int stride) { - tran_low_t out[16 * 16] = { 0 }; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[16], temp_out[16]; - - // First transform rows. Since all non-zero dct coefficients are in - // upper-left 4x4 area, we only need to calculate first 4 rows here. - for (i = 0; i < 4; ++i) { - idct16_c(input, outptr); - input += 16; - outptr += 16; - } - - // Then transform columns - for (i = 0; i < 16; ++i) { - for (j = 0; j < 16; ++j) - temp_in[j] = out[j*16 + i]; - idct16_c(temp_in, temp_out); - for (j = 0; j < 16; ++j) { - dest[j * stride + i] = clip_pixel_add(dest[j * stride + i], - ROUND_POWER_OF_TWO(temp_out[j], 6)); - } - } -} - -void vpx_idct16x16_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) { - int i, j; - tran_high_t a1; - tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64)); - out = WRAPLOW(dct_const_round_shift(out * cospi_16_64)); - a1 = ROUND_POWER_OF_TWO(out, 6); - for (j = 0; j < 16; ++j) { - for (i = 0; i < 16; ++i) - dest[i] = clip_pixel_add(dest[i], a1); - dest += stride; - } -} - -void idct32_c(const tran_low_t *input, tran_low_t *output) { - tran_low_t step1[32], step2[32]; - tran_high_t temp1, temp2; - - // stage 1 - step1[0] = input[0]; - step1[1] = input[16]; - step1[2] = input[8]; - step1[3] = input[24]; - step1[4] = input[4]; - step1[5] = input[20]; - step1[6] = input[12]; - step1[7] = input[28]; - step1[8] = input[2]; - step1[9] = input[18]; - step1[10] = input[10]; - step1[11] = input[26]; - step1[12] = input[6]; - step1[13] = input[22]; - step1[14] = input[14]; - step1[15] = input[30]; - - temp1 = input[1] * cospi_31_64 - input[31] * cospi_1_64; - temp2 = input[1] * cospi_1_64 + input[31] * cospi_31_64; - step1[16] = WRAPLOW(dct_const_round_shift(temp1)); - step1[31] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = input[17] * cospi_15_64 - input[15] * cospi_17_64; - temp2 = input[17] * cospi_17_64 + input[15] * cospi_15_64; - step1[17] = WRAPLOW(dct_const_round_shift(temp1)); - step1[30] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = input[9] * cospi_23_64 - input[23] * cospi_9_64; - temp2 = input[9] * cospi_9_64 + input[23] * cospi_23_64; - step1[18] = WRAPLOW(dct_const_round_shift(temp1)); - step1[29] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = input[25] * cospi_7_64 - input[7] * cospi_25_64; - temp2 = input[25] * cospi_25_64 + input[7] * cospi_7_64; - step1[19] = WRAPLOW(dct_const_round_shift(temp1)); - step1[28] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = input[5] * cospi_27_64 - input[27] * cospi_5_64; - temp2 = input[5] * cospi_5_64 + input[27] * cospi_27_64; - step1[20] = WRAPLOW(dct_const_round_shift(temp1)); - step1[27] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = input[21] * cospi_11_64 - input[11] * cospi_21_64; - temp2 = input[21] * cospi_21_64 + input[11] * cospi_11_64; - step1[21] = WRAPLOW(dct_const_round_shift(temp1)); - step1[26] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = input[13] * cospi_19_64 - input[19] * cospi_13_64; - temp2 = input[13] * cospi_13_64 + input[19] * cospi_19_64; - step1[22] = WRAPLOW(dct_const_round_shift(temp1)); - step1[25] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = input[29] * cospi_3_64 - input[3] * cospi_29_64; - temp2 = input[29] * cospi_29_64 + input[3] * cospi_3_64; - step1[23] = WRAPLOW(dct_const_round_shift(temp1)); - step1[24] = WRAPLOW(dct_const_round_shift(temp2)); - - // 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]; - - temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64; - temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64; - step2[8] = WRAPLOW(dct_const_round_shift(temp1)); - step2[15] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64; - temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64; - step2[9] = WRAPLOW(dct_const_round_shift(temp1)); - step2[14] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64; - temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64; - step2[10] = WRAPLOW(dct_const_round_shift(temp1)); - step2[13] = WRAPLOW(dct_const_round_shift(temp2)); - - temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64; - temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64; - step2[11] = WRAPLOW(dct_const_round_shift(temp1)); - step2[12] = WRAPLOW(dct_const_round_shift(temp2)); - - step2[16] = WRAPLOW(step1[16] + step1[17]); - step2[17] = WRAPLOW(step1[16] - step1[17]); - step2[18] = WRAPLOW(-step1[18] + step1[19]); - step2[19] = WRAPLOW(step1[18] + step1[19]); - step2[20] = WRAPLOW(step1[20] + step1[21]); - step2[21] = WRAPLOW(step1[20] - step1[21]); - step2[22] = WRAPLOW(-step1[22] + step1[23]); - step2[23] = WRAPLOW(step1[22] + step1[23]); - step2[24] = WRAPLOW(step1[24] + step1[25]); - step2[25] = WRAPLOW(step1[24] - step1[25]); - step2[26] = WRAPLOW(-step1[26] + step1[27]); - step2[27] = WRAPLOW(step1[26] + step1[27]); - step2[28] = WRAPLOW(step1[28] + step1[29]); - step2[29] = WRAPLOW(step1[28] - step1[29]); - step2[30] = WRAPLOW(-step1[30] + step1[31]); - step2[31] = WRAPLOW(step1[30] + step1[31]); - - // stage 3 - step1[0] = step2[0]; - step1[1] = step2[1]; - step1[2] = step2[2]; - step1[3] = step2[3]; - - temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64; - temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64; - step1[4] = WRAPLOW(dct_const_round_shift(temp1)); - step1[7] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64; - temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64; - step1[5] = WRAPLOW(dct_const_round_shift(temp1)); - step1[6] = WRAPLOW(dct_const_round_shift(temp2)); - - step1[8] = WRAPLOW(step2[8] + step2[9]); - step1[9] = WRAPLOW(step2[8] - step2[9]); - step1[10] = WRAPLOW(-step2[10] + step2[11]); - step1[11] = WRAPLOW(step2[10] + step2[11]); - step1[12] = WRAPLOW(step2[12] + step2[13]); - step1[13] = WRAPLOW(step2[12] - step2[13]); - step1[14] = WRAPLOW(-step2[14] + step2[15]); - step1[15] = WRAPLOW(step2[14] + step2[15]); - - step1[16] = step2[16]; - step1[31] = step2[31]; - temp1 = -step2[17] * cospi_4_64 + step2[30] * cospi_28_64; - temp2 = step2[17] * cospi_28_64 + step2[30] * cospi_4_64; - step1[17] = WRAPLOW(dct_const_round_shift(temp1)); - step1[30] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = -step2[18] * cospi_28_64 - step2[29] * cospi_4_64; - temp2 = -step2[18] * cospi_4_64 + step2[29] * cospi_28_64; - step1[18] = WRAPLOW(dct_const_round_shift(temp1)); - step1[29] = WRAPLOW(dct_const_round_shift(temp2)); - step1[19] = step2[19]; - step1[20] = step2[20]; - temp1 = -step2[21] * cospi_20_64 + step2[26] * cospi_12_64; - temp2 = step2[21] * cospi_12_64 + step2[26] * cospi_20_64; - step1[21] = WRAPLOW(dct_const_round_shift(temp1)); - step1[26] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = -step2[22] * cospi_12_64 - step2[25] * cospi_20_64; - temp2 = -step2[22] * cospi_20_64 + step2[25] * cospi_12_64; - step1[22] = WRAPLOW(dct_const_round_shift(temp1)); - step1[25] = WRAPLOW(dct_const_round_shift(temp2)); - step1[23] = step2[23]; - step1[24] = step2[24]; - step1[27] = step2[27]; - step1[28] = step2[28]; - - // stage 4 - temp1 = (step1[0] + step1[1]) * cospi_16_64; - temp2 = (step1[0] - step1[1]) * cospi_16_64; - step2[0] = WRAPLOW(dct_const_round_shift(temp1)); - step2[1] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64; - temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64; - step2[2] = WRAPLOW(dct_const_round_shift(temp1)); - step2[3] = WRAPLOW(dct_const_round_shift(temp2)); - step2[4] = WRAPLOW(step1[4] + step1[5]); - step2[5] = WRAPLOW(step1[4] - step1[5]); - step2[6] = WRAPLOW(-step1[6] + step1[7]); - step2[7] = WRAPLOW(step1[6] + step1[7]); - - step2[8] = step1[8]; - step2[15] = step1[15]; - temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64; - temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64; - step2[9] = WRAPLOW(dct_const_round_shift(temp1)); - step2[14] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64; - temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64; - step2[10] = WRAPLOW(dct_const_round_shift(temp1)); - step2[13] = WRAPLOW(dct_const_round_shift(temp2)); - step2[11] = step1[11]; - step2[12] = step1[12]; - - step2[16] = WRAPLOW(step1[16] + step1[19]); - step2[17] = WRAPLOW(step1[17] + step1[18]); - step2[18] = WRAPLOW(step1[17] - step1[18]); - step2[19] = WRAPLOW(step1[16] - step1[19]); - step2[20] = WRAPLOW(-step1[20] + step1[23]); - step2[21] = WRAPLOW(-step1[21] + step1[22]); - step2[22] = WRAPLOW(step1[21] + step1[22]); - step2[23] = WRAPLOW(step1[20] + step1[23]); - - step2[24] = WRAPLOW(step1[24] + step1[27]); - step2[25] = WRAPLOW(step1[25] + step1[26]); - step2[26] = WRAPLOW(step1[25] - step1[26]); - step2[27] = WRAPLOW(step1[24] - step1[27]); - step2[28] = WRAPLOW(-step1[28] + step1[31]); - step2[29] = WRAPLOW(-step1[29] + step1[30]); - step2[30] = WRAPLOW(step1[29] + step1[30]); - step2[31] = WRAPLOW(step1[28] + step1[31]); - - // stage 5 - step1[0] = WRAPLOW(step2[0] + step2[3]); - step1[1] = WRAPLOW(step2[1] + step2[2]); - step1[2] = WRAPLOW(step2[1] - step2[2]); - step1[3] = WRAPLOW(step2[0] - step2[3]); - step1[4] = step2[4]; - temp1 = (step2[6] - step2[5]) * cospi_16_64; - temp2 = (step2[5] + step2[6]) * cospi_16_64; - step1[5] = WRAPLOW(dct_const_round_shift(temp1)); - step1[6] = WRAPLOW(dct_const_round_shift(temp2)); - step1[7] = step2[7]; - - step1[8] = WRAPLOW(step2[8] + step2[11]); - step1[9] = WRAPLOW(step2[9] + step2[10]); - step1[10] = WRAPLOW(step2[9] - step2[10]); - step1[11] = WRAPLOW(step2[8] - step2[11]); - step1[12] = WRAPLOW(-step2[12] + step2[15]); - step1[13] = WRAPLOW(-step2[13] + step2[14]); - step1[14] = WRAPLOW(step2[13] + step2[14]); - step1[15] = WRAPLOW(step2[12] + step2[15]); - - step1[16] = step2[16]; - step1[17] = step2[17]; - temp1 = -step2[18] * cospi_8_64 + step2[29] * cospi_24_64; - temp2 = step2[18] * cospi_24_64 + step2[29] * cospi_8_64; - step1[18] = WRAPLOW(dct_const_round_shift(temp1)); - step1[29] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = -step2[19] * cospi_8_64 + step2[28] * cospi_24_64; - temp2 = step2[19] * cospi_24_64 + step2[28] * cospi_8_64; - step1[19] = WRAPLOW(dct_const_round_shift(temp1)); - step1[28] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = -step2[20] * cospi_24_64 - step2[27] * cospi_8_64; - temp2 = -step2[20] * cospi_8_64 + step2[27] * cospi_24_64; - step1[20] = WRAPLOW(dct_const_round_shift(temp1)); - step1[27] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = -step2[21] * cospi_24_64 - step2[26] * cospi_8_64; - temp2 = -step2[21] * cospi_8_64 + step2[26] * cospi_24_64; - step1[21] = WRAPLOW(dct_const_round_shift(temp1)); - step1[26] = WRAPLOW(dct_const_round_shift(temp2)); - step1[22] = step2[22]; - step1[23] = step2[23]; - step1[24] = step2[24]; - step1[25] = step2[25]; - step1[30] = step2[30]; - step1[31] = step2[31]; - - // stage 6 - step2[0] = WRAPLOW(step1[0] + step1[7]); - step2[1] = WRAPLOW(step1[1] + step1[6]); - step2[2] = WRAPLOW(step1[2] + step1[5]); - step2[3] = WRAPLOW(step1[3] + step1[4]); - step2[4] = WRAPLOW(step1[3] - step1[4]); - step2[5] = WRAPLOW(step1[2] - step1[5]); - step2[6] = WRAPLOW(step1[1] - step1[6]); - step2[7] = WRAPLOW(step1[0] - step1[7]); - step2[8] = step1[8]; - step2[9] = step1[9]; - temp1 = (-step1[10] + step1[13]) * cospi_16_64; - temp2 = (step1[10] + step1[13]) * cospi_16_64; - step2[10] = WRAPLOW(dct_const_round_shift(temp1)); - step2[13] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = (-step1[11] + step1[12]) * cospi_16_64; - temp2 = (step1[11] + step1[12]) * cospi_16_64; - step2[11] = WRAPLOW(dct_const_round_shift(temp1)); - step2[12] = WRAPLOW(dct_const_round_shift(temp2)); - step2[14] = step1[14]; - step2[15] = step1[15]; - - step2[16] = WRAPLOW(step1[16] + step1[23]); - step2[17] = WRAPLOW(step1[17] + step1[22]); - step2[18] = WRAPLOW(step1[18] + step1[21]); - step2[19] = WRAPLOW(step1[19] + step1[20]); - step2[20] = WRAPLOW(step1[19] - step1[20]); - step2[21] = WRAPLOW(step1[18] - step1[21]); - step2[22] = WRAPLOW(step1[17] - step1[22]); - step2[23] = WRAPLOW(step1[16] - step1[23]); - - step2[24] = WRAPLOW(-step1[24] + step1[31]); - step2[25] = WRAPLOW(-step1[25] + step1[30]); - step2[26] = WRAPLOW(-step1[26] + step1[29]); - step2[27] = WRAPLOW(-step1[27] + step1[28]); - step2[28] = WRAPLOW(step1[27] + step1[28]); - step2[29] = WRAPLOW(step1[26] + step1[29]); - step2[30] = WRAPLOW(step1[25] + step1[30]); - step2[31] = WRAPLOW(step1[24] + step1[31]); - - // stage 7 - step1[0] = WRAPLOW(step2[0] + step2[15]); - step1[1] = WRAPLOW(step2[1] + step2[14]); - step1[2] = WRAPLOW(step2[2] + step2[13]); - step1[3] = WRAPLOW(step2[3] + step2[12]); - step1[4] = WRAPLOW(step2[4] + step2[11]); - step1[5] = WRAPLOW(step2[5] + step2[10]); - step1[6] = WRAPLOW(step2[6] + step2[9]); - step1[7] = WRAPLOW(step2[7] + step2[8]); - step1[8] = WRAPLOW(step2[7] - step2[8]); - step1[9] = WRAPLOW(step2[6] - step2[9]); - step1[10] = WRAPLOW(step2[5] - step2[10]); - step1[11] = WRAPLOW(step2[4] - step2[11]); - step1[12] = WRAPLOW(step2[3] - step2[12]); - step1[13] = WRAPLOW(step2[2] - step2[13]); - step1[14] = WRAPLOW(step2[1] - step2[14]); - step1[15] = WRAPLOW(step2[0] - step2[15]); - - step1[16] = step2[16]; - step1[17] = step2[17]; - step1[18] = step2[18]; - step1[19] = step2[19]; - temp1 = (-step2[20] + step2[27]) * cospi_16_64; - temp2 = (step2[20] + step2[27]) * cospi_16_64; - step1[20] = WRAPLOW(dct_const_round_shift(temp1)); - step1[27] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = (-step2[21] + step2[26]) * cospi_16_64; - temp2 = (step2[21] + step2[26]) * cospi_16_64; - step1[21] = WRAPLOW(dct_const_round_shift(temp1)); - step1[26] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = (-step2[22] + step2[25]) * cospi_16_64; - temp2 = (step2[22] + step2[25]) * cospi_16_64; - step1[22] = WRAPLOW(dct_const_round_shift(temp1)); - step1[25] = WRAPLOW(dct_const_round_shift(temp2)); - temp1 = (-step2[23] + step2[24]) * cospi_16_64; - temp2 = (step2[23] + step2[24]) * cospi_16_64; - step1[23] = WRAPLOW(dct_const_round_shift(temp1)); - step1[24] = WRAPLOW(dct_const_round_shift(temp2)); - step1[28] = step2[28]; - step1[29] = step2[29]; - step1[30] = step2[30]; - step1[31] = step2[31]; - - // final stage - output[0] = WRAPLOW(step1[0] + step1[31]); - output[1] = WRAPLOW(step1[1] + step1[30]); - output[2] = WRAPLOW(step1[2] + step1[29]); - output[3] = WRAPLOW(step1[3] + step1[28]); - output[4] = WRAPLOW(step1[4] + step1[27]); - output[5] = WRAPLOW(step1[5] + step1[26]); - output[6] = WRAPLOW(step1[6] + step1[25]); - output[7] = WRAPLOW(step1[7] + step1[24]); - output[8] = WRAPLOW(step1[8] + step1[23]); - output[9] = WRAPLOW(step1[9] + step1[22]); - output[10] = WRAPLOW(step1[10] + step1[21]); - output[11] = WRAPLOW(step1[11] + step1[20]); - output[12] = WRAPLOW(step1[12] + step1[19]); - output[13] = WRAPLOW(step1[13] + step1[18]); - output[14] = WRAPLOW(step1[14] + step1[17]); - output[15] = WRAPLOW(step1[15] + step1[16]); - output[16] = WRAPLOW(step1[15] - step1[16]); - output[17] = WRAPLOW(step1[14] - step1[17]); - output[18] = WRAPLOW(step1[13] - step1[18]); - output[19] = WRAPLOW(step1[12] - step1[19]); - output[20] = WRAPLOW(step1[11] - step1[20]); - output[21] = WRAPLOW(step1[10] - step1[21]); - output[22] = WRAPLOW(step1[9] - step1[22]); - output[23] = WRAPLOW(step1[8] - step1[23]); - output[24] = WRAPLOW(step1[7] - step1[24]); - output[25] = WRAPLOW(step1[6] - step1[25]); - output[26] = WRAPLOW(step1[5] - step1[26]); - output[27] = WRAPLOW(step1[4] - step1[27]); - output[28] = WRAPLOW(step1[3] - step1[28]); - output[29] = WRAPLOW(step1[2] - step1[29]); - output[30] = WRAPLOW(step1[1] - step1[30]); - output[31] = WRAPLOW(step1[0] - step1[31]); -} - -void vpx_idct32x32_1024_add_c(const tran_low_t *input, uint8_t *dest, - int stride) { - tran_low_t out[32 * 32]; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[32], temp_out[32]; - - // Rows - for (i = 0; i < 32; ++i) { - int16_t zero_coeff[16]; - for (j = 0; j < 16; ++j) - zero_coeff[j] = input[2 * j] | input[2 * j + 1]; - for (j = 0; j < 8; ++j) - zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1]; - for (j = 0; j < 4; ++j) - zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1]; - for (j = 0; j < 2; ++j) - zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1]; - - if (zero_coeff[0] | zero_coeff[1]) - idct32_c(input, outptr); - else - memset(outptr, 0, sizeof(tran_low_t) * 32); - input += 32; - outptr += 32; - } - - // Columns - for (i = 0; i < 32; ++i) { - for (j = 0; j < 32; ++j) - temp_in[j] = out[j * 32 + i]; - idct32_c(temp_in, temp_out); - for (j = 0; j < 32; ++j) { - dest[j * stride + i] = clip_pixel_add(dest[j * stride + i], - ROUND_POWER_OF_TWO(temp_out[j], 6)); - } - } -} - -void vpx_idct32x32_135_add_c(const tran_low_t *input, uint8_t *dest, - int stride) { - tran_low_t out[32 * 32] = {0}; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[32], temp_out[32]; - - // Rows - // only upper-left 16x16 has non-zero coeff - for (i = 0; i < 16; ++i) { - idct32_c(input, outptr); - input += 32; - outptr += 32; - } - - // Columns - for (i = 0; i < 32; ++i) { - for (j = 0; j < 32; ++j) - temp_in[j] = out[j * 32 + i]; - idct32_c(temp_in, temp_out); - for (j = 0; j < 32; ++j) { - dest[j * stride + i] = clip_pixel_add(dest[j * stride + i], - ROUND_POWER_OF_TWO(temp_out[j], 6)); - } - } -} - -void vpx_idct32x32_34_add_c(const tran_low_t *input, uint8_t *dest, - int stride) { - tran_low_t out[32 * 32] = {0}; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[32], temp_out[32]; - - // Rows - // only upper-left 8x8 has non-zero coeff - for (i = 0; i < 8; ++i) { - idct32_c(input, outptr); - input += 32; - outptr += 32; - } - - // Columns - for (i = 0; i < 32; ++i) { - for (j = 0; j < 32; ++j) - temp_in[j] = out[j * 32 + i]; - idct32_c(temp_in, temp_out); - for (j = 0; j < 32; ++j) { - dest[j * stride + i] = clip_pixel_add(dest[j * stride + i], - ROUND_POWER_OF_TWO(temp_out[j], 6)); - } - } -} - -void vpx_idct32x32_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) { - int i, j; - tran_high_t a1; - - tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64)); - out = WRAPLOW(dct_const_round_shift(out * cospi_16_64)); - a1 = ROUND_POWER_OF_TWO(out, 6); - - for (j = 0; j < 32; ++j) { - for (i = 0; i < 32; ++i) - dest[i] = clip_pixel_add(dest[i], a1); - dest += stride; - } -} - -#if CONFIG_VP9_HIGHBITDEPTH -void vpx_highbd_iwht4x4_16_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - /* 4-point reversible, orthonormal inverse Walsh-Hadamard in 3.5 adds, - 0.5 shifts per pixel. */ - int i; - tran_low_t output[16]; - tran_high_t a1, b1, c1, d1, e1; - const tran_low_t *ip = input; - tran_low_t *op = output; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - for (i = 0; i < 4; i++) { - a1 = ip[0] >> UNIT_QUANT_SHIFT; - c1 = ip[1] >> UNIT_QUANT_SHIFT; - d1 = ip[2] >> UNIT_QUANT_SHIFT; - b1 = ip[3] >> UNIT_QUANT_SHIFT; - a1 += c1; - d1 -= b1; - e1 = (a1 - d1) >> 1; - b1 = e1 - b1; - c1 = e1 - c1; - a1 -= b1; - d1 += c1; - op[0] = HIGHBD_WRAPLOW(a1, bd); - op[1] = HIGHBD_WRAPLOW(b1, bd); - op[2] = HIGHBD_WRAPLOW(c1, bd); - op[3] = HIGHBD_WRAPLOW(d1, bd); - ip += 4; - op += 4; - } - - ip = output; - for (i = 0; i < 4; i++) { - a1 = ip[4 * 0]; - c1 = ip[4 * 1]; - d1 = ip[4 * 2]; - b1 = ip[4 * 3]; - a1 += c1; - d1 -= b1; - e1 = (a1 - d1) >> 1; - b1 = e1 - b1; - c1 = e1 - c1; - a1 -= b1; - d1 += c1; - dest[stride * 0] = highbd_clip_pixel_add(dest[stride * 0], - HIGHBD_WRAPLOW(a1, bd), bd); - dest[stride * 1] = highbd_clip_pixel_add(dest[stride * 1], - HIGHBD_WRAPLOW(b1, bd), bd); - dest[stride * 2] = highbd_clip_pixel_add(dest[stride * 2], - HIGHBD_WRAPLOW(c1, bd), bd); - dest[stride * 3] = highbd_clip_pixel_add(dest[stride * 3], - HIGHBD_WRAPLOW(d1, bd), bd); - - ip++; - dest++; - } -} - -void vpx_highbd_iwht4x4_1_add_c(const tran_low_t *in, uint8_t *dest8, - int dest_stride, int bd) { - int i; - tran_high_t a1, e1; - tran_low_t tmp[4]; - const tran_low_t *ip = in; - tran_low_t *op = tmp; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - (void) bd; - - a1 = ip[0] >> UNIT_QUANT_SHIFT; - e1 = a1 >> 1; - a1 -= e1; - op[0] = HIGHBD_WRAPLOW(a1, bd); - op[1] = op[2] = op[3] = HIGHBD_WRAPLOW(e1, bd); - - ip = tmp; - for (i = 0; i < 4; i++) { - e1 = ip[0] >> 1; - a1 = ip[0] - e1; - dest[dest_stride * 0] = highbd_clip_pixel_add( - dest[dest_stride * 0], a1, bd); - dest[dest_stride * 1] = highbd_clip_pixel_add( - dest[dest_stride * 1], e1, bd); - dest[dest_stride * 2] = highbd_clip_pixel_add( - dest[dest_stride * 2], e1, bd); - dest[dest_stride * 3] = highbd_clip_pixel_add( - dest[dest_stride * 3], e1, bd); - ip++; - dest++; - } -} - -void vpx_highbd_idct4_c(const tran_low_t *input, tran_low_t *output, int bd) { - tran_low_t step[4]; - tran_high_t temp1, temp2; - (void) bd; - // stage 1 - temp1 = (input[0] + input[2]) * cospi_16_64; - temp2 = (input[0] - input[2]) * cospi_16_64; - step[0] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step[1] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = input[1] * cospi_24_64 - input[3] * cospi_8_64; - temp2 = input[1] * cospi_8_64 + input[3] * cospi_24_64; - step[2] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step[3] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - // stage 2 - output[0] = HIGHBD_WRAPLOW(step[0] + step[3], bd); - output[1] = HIGHBD_WRAPLOW(step[1] + step[2], bd); - output[2] = HIGHBD_WRAPLOW(step[1] - step[2], bd); - output[3] = HIGHBD_WRAPLOW(step[0] - step[3], bd); -} - -void vpx_highbd_idct4x4_16_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - tran_low_t out[4 * 4]; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[4], temp_out[4]; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - // Rows - for (i = 0; i < 4; ++i) { - vpx_highbd_idct4_c(input, outptr, bd); - input += 4; - outptr += 4; - } - - // Columns - for (i = 0; i < 4; ++i) { - for (j = 0; j < 4; ++j) - temp_in[j] = out[j * 4 + i]; - vpx_highbd_idct4_c(temp_in, temp_out, bd); - for (j = 0; j < 4; ++j) { - dest[j * stride + i] = highbd_clip_pixel_add( - dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 4), bd); - } - } -} - -void vpx_highbd_idct4x4_1_add_c(const tran_low_t *input, uint8_t *dest8, - int dest_stride, int bd) { - int i; - tran_high_t a1; - tran_low_t out = HIGHBD_WRAPLOW( - highbd_dct_const_round_shift(input[0] * cospi_16_64), bd); - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - out = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(out * cospi_16_64), bd); - a1 = ROUND_POWER_OF_TWO(out, 4); - - for (i = 0; i < 4; i++) { - dest[0] = highbd_clip_pixel_add(dest[0], a1, bd); - dest[1] = highbd_clip_pixel_add(dest[1], a1, bd); - dest[2] = highbd_clip_pixel_add(dest[2], a1, bd); - dest[3] = highbd_clip_pixel_add(dest[3], a1, bd); - dest += dest_stride; - } -} - -void vpx_highbd_idct8_c(const tran_low_t *input, tran_low_t *output, int bd) { - tran_low_t step1[8], step2[8]; - tran_high_t temp1, temp2; - // stage 1 - step1[0] = input[0]; - step1[2] = input[4]; - step1[1] = input[2]; - step1[3] = input[6]; - temp1 = input[1] * cospi_28_64 - input[7] * cospi_4_64; - temp2 = input[1] * cospi_4_64 + input[7] * cospi_28_64; - step1[4] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[7] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = input[5] * cospi_12_64 - input[3] * cospi_20_64; - temp2 = input[5] * cospi_20_64 + input[3] * cospi_12_64; - step1[5] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[6] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - // stage 2 & stage 3 - even half - vpx_highbd_idct4_c(step1, step1, bd); - - // stage 2 - odd half - step2[4] = HIGHBD_WRAPLOW(step1[4] + step1[5], bd); - step2[5] = HIGHBD_WRAPLOW(step1[4] - step1[5], bd); - step2[6] = HIGHBD_WRAPLOW(-step1[6] + step1[7], bd); - step2[7] = HIGHBD_WRAPLOW(step1[6] + step1[7], bd); - - // stage 3 - odd half - step1[4] = step2[4]; - temp1 = (step2[6] - step2[5]) * cospi_16_64; - temp2 = (step2[5] + step2[6]) * cospi_16_64; - step1[5] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[6] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step1[7] = step2[7]; - - // stage 4 - output[0] = HIGHBD_WRAPLOW(step1[0] + step1[7], bd); - output[1] = HIGHBD_WRAPLOW(step1[1] + step1[6], bd); - output[2] = HIGHBD_WRAPLOW(step1[2] + step1[5], bd); - output[3] = HIGHBD_WRAPLOW(step1[3] + step1[4], bd); - output[4] = HIGHBD_WRAPLOW(step1[3] - step1[4], bd); - output[5] = HIGHBD_WRAPLOW(step1[2] - step1[5], bd); - output[6] = HIGHBD_WRAPLOW(step1[1] - step1[6], bd); - output[7] = HIGHBD_WRAPLOW(step1[0] - step1[7], bd); -} - -void vpx_highbd_idct8x8_64_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - tran_low_t out[8 * 8]; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[8], temp_out[8]; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - // First transform rows. - for (i = 0; i < 8; ++i) { - vpx_highbd_idct8_c(input, outptr, bd); - input += 8; - outptr += 8; - } - - // Then transform columns. - for (i = 0; i < 8; ++i) { - for (j = 0; j < 8; ++j) - temp_in[j] = out[j * 8 + i]; - vpx_highbd_idct8_c(temp_in, temp_out, bd); - for (j = 0; j < 8; ++j) { - dest[j * stride + i] = highbd_clip_pixel_add( - dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd); - } - } -} - -void vpx_highbd_idct8x8_1_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - int i, j; - tran_high_t a1; - tran_low_t out = HIGHBD_WRAPLOW( - highbd_dct_const_round_shift(input[0] * cospi_16_64), bd); - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - out = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(out * cospi_16_64), bd); - a1 = ROUND_POWER_OF_TWO(out, 5); - for (j = 0; j < 8; ++j) { - for (i = 0; i < 8; ++i) - dest[i] = highbd_clip_pixel_add(dest[i], a1, bd); - dest += stride; - } -} - -void vpx_highbd_iadst4_c(const tran_low_t *input, tran_low_t *output, int bd) { - tran_high_t s0, s1, s2, s3, s4, s5, s6, s7; - - tran_low_t x0 = input[0]; - tran_low_t x1 = input[1]; - tran_low_t x2 = input[2]; - tran_low_t x3 = input[3]; - (void) bd; - - if (!(x0 | x1 | x2 | x3)) { - memset(output, 0, 4 * sizeof(*output)); - return; - } - - s0 = sinpi_1_9 * x0; - s1 = sinpi_2_9 * x0; - s2 = sinpi_3_9 * x1; - s3 = sinpi_4_9 * x2; - s4 = sinpi_1_9 * x2; - s5 = sinpi_2_9 * x3; - s6 = sinpi_4_9 * x3; - s7 = (tran_high_t)HIGHBD_WRAPLOW(x0 - x2 + x3, bd); - - s0 = s0 + s3 + s5; - s1 = s1 - s4 - s6; - s3 = s2; - s2 = sinpi_3_9 * s7; - - // 1-D transform scaling factor is sqrt(2). - // The overall dynamic range is 14b (input) + 14b (multiplication scaling) - // + 1b (addition) = 29b. - // Hence the output bit depth is 15b. - output[0] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s0 + s3), bd); - output[1] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s1 + s3), bd); - output[2] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s2), bd); - output[3] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s0 + s1 - s3), bd); -} - -void vpx_highbd_iadst8_c(const tran_low_t *input, tran_low_t *output, int bd) { - tran_high_t s0, s1, s2, s3, s4, s5, s6, s7; - - tran_low_t x0 = input[7]; - tran_low_t x1 = input[0]; - tran_low_t x2 = input[5]; - tran_low_t x3 = input[2]; - tran_low_t x4 = input[3]; - tran_low_t x5 = input[4]; - tran_low_t x6 = input[1]; - tran_low_t x7 = input[6]; - (void) bd; - - if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) { - memset(output, 0, 8 * sizeof(*output)); - return; - } - - // stage 1 - s0 = cospi_2_64 * x0 + cospi_30_64 * x1; - s1 = cospi_30_64 * x0 - cospi_2_64 * x1; - s2 = cospi_10_64 * x2 + cospi_22_64 * x3; - s3 = cospi_22_64 * x2 - cospi_10_64 * x3; - s4 = cospi_18_64 * x4 + cospi_14_64 * x5; - s5 = cospi_14_64 * x4 - cospi_18_64 * x5; - s6 = cospi_26_64 * x6 + cospi_6_64 * x7; - s7 = cospi_6_64 * x6 - cospi_26_64 * x7; - - x0 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s0 + s4), bd); - x1 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s1 + s5), bd); - x2 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s2 + s6), bd); - x3 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s3 + s7), bd); - x4 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s0 - s4), bd); - x5 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s1 - s5), bd); - x6 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s2 - s6), bd); - x7 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s3 - s7), bd); - - // stage 2 - s0 = x0; - s1 = x1; - s2 = x2; - s3 = x3; - s4 = cospi_8_64 * x4 + cospi_24_64 * x5; - s5 = cospi_24_64 * x4 - cospi_8_64 * x5; - s6 = -cospi_24_64 * x6 + cospi_8_64 * x7; - s7 = cospi_8_64 * x6 + cospi_24_64 * x7; - - x0 = HIGHBD_WRAPLOW(s0 + s2, bd); - x1 = HIGHBD_WRAPLOW(s1 + s3, bd); - x2 = HIGHBD_WRAPLOW(s0 - s2, bd); - x3 = HIGHBD_WRAPLOW(s1 - s3, bd); - x4 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s4 + s6), bd); - x5 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s5 + s7), bd); - x6 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s4 - s6), bd); - x7 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s5 - s7), bd); - - // stage 3 - s2 = cospi_16_64 * (x2 + x3); - s3 = cospi_16_64 * (x2 - x3); - s6 = cospi_16_64 * (x6 + x7); - s7 = cospi_16_64 * (x6 - x7); - - x2 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s2), bd); - x3 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s3), bd); - x6 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s6), bd); - x7 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s7), bd); - - output[0] = HIGHBD_WRAPLOW(x0, bd); - output[1] = HIGHBD_WRAPLOW(-x4, bd); - output[2] = HIGHBD_WRAPLOW(x6, bd); - output[3] = HIGHBD_WRAPLOW(-x2, bd); - output[4] = HIGHBD_WRAPLOW(x3, bd); - output[5] = HIGHBD_WRAPLOW(-x7, bd); - output[6] = HIGHBD_WRAPLOW(x5, bd); - output[7] = HIGHBD_WRAPLOW(-x1, bd); -} - -void vpx_highbd_idct8x8_10_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - tran_low_t out[8 * 8] = { 0 }; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[8], temp_out[8]; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - // First transform rows. - // Only first 4 row has non-zero coefs. - for (i = 0; i < 4; ++i) { - vpx_highbd_idct8_c(input, outptr, bd); - input += 8; - outptr += 8; - } - // Then transform columns. - for (i = 0; i < 8; ++i) { - for (j = 0; j < 8; ++j) - temp_in[j] = out[j * 8 + i]; - vpx_highbd_idct8_c(temp_in, temp_out, bd); - for (j = 0; j < 8; ++j) { - dest[j * stride + i] = highbd_clip_pixel_add( - dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd); - } - } -} - -void vpx_highbd_idct16_c(const tran_low_t *input, tran_low_t *output, int bd) { - tran_low_t step1[16], step2[16]; - tran_high_t temp1, temp2; - (void) bd; - - // stage 1 - step1[0] = input[0/2]; - step1[1] = input[16/2]; - step1[2] = input[8/2]; - step1[3] = input[24/2]; - step1[4] = input[4/2]; - step1[5] = input[20/2]; - step1[6] = input[12/2]; - step1[7] = input[28/2]; - step1[8] = input[2/2]; - step1[9] = input[18/2]; - step1[10] = input[10/2]; - step1[11] = input[26/2]; - step1[12] = input[6/2]; - step1[13] = input[22/2]; - step1[14] = input[14/2]; - step1[15] = input[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]; - - temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64; - temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64; - step2[8] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[15] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64; - temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64; - step2[9] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[14] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64; - temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64; - step2[10] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[13] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64; - temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64; - step2[11] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[12] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - // stage 3 - step1[0] = step2[0]; - step1[1] = step2[1]; - step1[2] = step2[2]; - step1[3] = step2[3]; - - temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64; - temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64; - step1[4] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[7] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64; - temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64; - step1[5] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[6] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - step1[8] = HIGHBD_WRAPLOW(step2[8] + step2[9], bd); - step1[9] = HIGHBD_WRAPLOW(step2[8] - step2[9], bd); - step1[10] = HIGHBD_WRAPLOW(-step2[10] + step2[11], bd); - step1[11] = HIGHBD_WRAPLOW(step2[10] + step2[11], bd); - step1[12] = HIGHBD_WRAPLOW(step2[12] + step2[13], bd); - step1[13] = HIGHBD_WRAPLOW(step2[12] - step2[13], bd); - step1[14] = HIGHBD_WRAPLOW(-step2[14] + step2[15], bd); - step1[15] = HIGHBD_WRAPLOW(step2[14] + step2[15], bd); - - // stage 4 - temp1 = (step1[0] + step1[1]) * cospi_16_64; - temp2 = (step1[0] - step1[1]) * cospi_16_64; - step2[0] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[1] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64; - temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64; - step2[2] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[3] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step2[4] = HIGHBD_WRAPLOW(step1[4] + step1[5], bd); - step2[5] = HIGHBD_WRAPLOW(step1[4] - step1[5], bd); - step2[6] = HIGHBD_WRAPLOW(-step1[6] + step1[7], bd); - step2[7] = HIGHBD_WRAPLOW(step1[6] + step1[7], bd); - - step2[8] = step1[8]; - step2[15] = step1[15]; - temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64; - temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64; - step2[9] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[14] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64; - temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64; - step2[10] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[13] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step2[11] = step1[11]; - step2[12] = step1[12]; - - // stage 5 - step1[0] = HIGHBD_WRAPLOW(step2[0] + step2[3], bd); - step1[1] = HIGHBD_WRAPLOW(step2[1] + step2[2], bd); - step1[2] = HIGHBD_WRAPLOW(step2[1] - step2[2], bd); - step1[3] = HIGHBD_WRAPLOW(step2[0] - step2[3], bd); - step1[4] = step2[4]; - temp1 = (step2[6] - step2[5]) * cospi_16_64; - temp2 = (step2[5] + step2[6]) * cospi_16_64; - step1[5] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[6] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step1[7] = step2[7]; - - step1[8] = HIGHBD_WRAPLOW(step2[8] + step2[11], bd); - step1[9] = HIGHBD_WRAPLOW(step2[9] + step2[10], bd); - step1[10] = HIGHBD_WRAPLOW(step2[9] - step2[10], bd); - step1[11] = HIGHBD_WRAPLOW(step2[8] - step2[11], bd); - step1[12] = HIGHBD_WRAPLOW(-step2[12] + step2[15], bd); - step1[13] = HIGHBD_WRAPLOW(-step2[13] + step2[14], bd); - step1[14] = HIGHBD_WRAPLOW(step2[13] + step2[14], bd); - step1[15] = HIGHBD_WRAPLOW(step2[12] + step2[15], bd); - - // stage 6 - step2[0] = HIGHBD_WRAPLOW(step1[0] + step1[7], bd); - step2[1] = HIGHBD_WRAPLOW(step1[1] + step1[6], bd); - step2[2] = HIGHBD_WRAPLOW(step1[2] + step1[5], bd); - step2[3] = HIGHBD_WRAPLOW(step1[3] + step1[4], bd); - step2[4] = HIGHBD_WRAPLOW(step1[3] - step1[4], bd); - step2[5] = HIGHBD_WRAPLOW(step1[2] - step1[5], bd); - step2[6] = HIGHBD_WRAPLOW(step1[1] - step1[6], bd); - step2[7] = HIGHBD_WRAPLOW(step1[0] - step1[7], bd); - step2[8] = step1[8]; - step2[9] = step1[9]; - temp1 = (-step1[10] + step1[13]) * cospi_16_64; - temp2 = (step1[10] + step1[13]) * cospi_16_64; - step2[10] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[13] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = (-step1[11] + step1[12]) * cospi_16_64; - temp2 = (step1[11] + step1[12]) * cospi_16_64; - step2[11] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[12] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step2[14] = step1[14]; - step2[15] = step1[15]; - - // stage 7 - output[0] = HIGHBD_WRAPLOW(step2[0] + step2[15], bd); - output[1] = HIGHBD_WRAPLOW(step2[1] + step2[14], bd); - output[2] = HIGHBD_WRAPLOW(step2[2] + step2[13], bd); - output[3] = HIGHBD_WRAPLOW(step2[3] + step2[12], bd); - output[4] = HIGHBD_WRAPLOW(step2[4] + step2[11], bd); - output[5] = HIGHBD_WRAPLOW(step2[5] + step2[10], bd); - output[6] = HIGHBD_WRAPLOW(step2[6] + step2[9], bd); - output[7] = HIGHBD_WRAPLOW(step2[7] + step2[8], bd); - output[8] = HIGHBD_WRAPLOW(step2[7] - step2[8], bd); - output[9] = HIGHBD_WRAPLOW(step2[6] - step2[9], bd); - output[10] = HIGHBD_WRAPLOW(step2[5] - step2[10], bd); - output[11] = HIGHBD_WRAPLOW(step2[4] - step2[11], bd); - output[12] = HIGHBD_WRAPLOW(step2[3] - step2[12], bd); - output[13] = HIGHBD_WRAPLOW(step2[2] - step2[13], bd); - output[14] = HIGHBD_WRAPLOW(step2[1] - step2[14], bd); - output[15] = HIGHBD_WRAPLOW(step2[0] - step2[15], bd); -} - -void vpx_highbd_idct16x16_256_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - tran_low_t out[16 * 16]; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[16], temp_out[16]; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - // First transform rows. - for (i = 0; i < 16; ++i) { - vpx_highbd_idct16_c(input, outptr, bd); - input += 16; - outptr += 16; - } - - // Then transform columns. - for (i = 0; i < 16; ++i) { - for (j = 0; j < 16; ++j) - temp_in[j] = out[j * 16 + i]; - vpx_highbd_idct16_c(temp_in, temp_out, bd); - for (j = 0; j < 16; ++j) { - dest[j * stride + i] = highbd_clip_pixel_add( - dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd); - } - } -} - -void vpx_highbd_iadst16_c(const tran_low_t *input, tran_low_t *output, int bd) { - tran_high_t s0, s1, s2, s3, s4, s5, s6, s7, s8; - tran_high_t s9, s10, s11, s12, s13, s14, s15; - - tran_low_t x0 = input[15]; - tran_low_t x1 = input[0]; - tran_low_t x2 = input[13]; - tran_low_t x3 = input[2]; - tran_low_t x4 = input[11]; - tran_low_t x5 = input[4]; - tran_low_t x6 = input[9]; - tran_low_t x7 = input[6]; - tran_low_t x8 = input[7]; - tran_low_t x9 = input[8]; - tran_low_t x10 = input[5]; - tran_low_t x11 = input[10]; - tran_low_t x12 = input[3]; - tran_low_t x13 = input[12]; - tran_low_t x14 = input[1]; - tran_low_t x15 = input[14]; - (void) bd; - - if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7 | x8 - | x9 | x10 | x11 | x12 | x13 | x14 | x15)) { - memset(output, 0, 16 * sizeof(*output)); - return; - } - - // stage 1 - s0 = x0 * cospi_1_64 + x1 * cospi_31_64; - s1 = x0 * cospi_31_64 - x1 * cospi_1_64; - s2 = x2 * cospi_5_64 + x3 * cospi_27_64; - s3 = x2 * cospi_27_64 - x3 * cospi_5_64; - s4 = x4 * cospi_9_64 + x5 * cospi_23_64; - s5 = x4 * cospi_23_64 - x5 * cospi_9_64; - s6 = x6 * cospi_13_64 + x7 * cospi_19_64; - s7 = x6 * cospi_19_64 - x7 * cospi_13_64; - s8 = x8 * cospi_17_64 + x9 * cospi_15_64; - s9 = x8 * cospi_15_64 - x9 * cospi_17_64; - s10 = x10 * cospi_21_64 + x11 * cospi_11_64; - s11 = x10 * cospi_11_64 - x11 * cospi_21_64; - s12 = x12 * cospi_25_64 + x13 * cospi_7_64; - s13 = x12 * cospi_7_64 - x13 * cospi_25_64; - s14 = x14 * cospi_29_64 + x15 * cospi_3_64; - s15 = x14 * cospi_3_64 - x15 * cospi_29_64; - - x0 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s0 + s8), bd); - x1 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s1 + s9), bd); - x2 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s2 + s10), bd); - x3 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s3 + s11), bd); - x4 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s4 + s12), bd); - x5 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s5 + s13), bd); - x6 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s6 + s14), bd); - x7 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s7 + s15), bd); - x8 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s0 - s8), bd); - x9 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s1 - s9), bd); - x10 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s2 - s10), bd); - x11 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s3 - s11), bd); - x12 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s4 - s12), bd); - x13 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s5 - s13), bd); - x14 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s6 - s14), bd); - x15 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s7 - s15), bd); - - // stage 2 - s0 = x0; - s1 = x1; - s2 = x2; - s3 = x3; - s4 = x4; - s5 = x5; - s6 = x6; - s7 = x7; - s8 = x8 * cospi_4_64 + x9 * cospi_28_64; - s9 = x8 * cospi_28_64 - x9 * cospi_4_64; - s10 = x10 * cospi_20_64 + x11 * cospi_12_64; - s11 = x10 * cospi_12_64 - x11 * cospi_20_64; - s12 = -x12 * cospi_28_64 + x13 * cospi_4_64; - s13 = x12 * cospi_4_64 + x13 * cospi_28_64; - s14 = -x14 * cospi_12_64 + x15 * cospi_20_64; - s15 = x14 * cospi_20_64 + x15 * cospi_12_64; - - x0 = HIGHBD_WRAPLOW(s0 + s4, bd); - x1 = HIGHBD_WRAPLOW(s1 + s5, bd); - x2 = HIGHBD_WRAPLOW(s2 + s6, bd); - x3 = HIGHBD_WRAPLOW(s3 + s7, bd); - x4 = HIGHBD_WRAPLOW(s0 - s4, bd); - x5 = HIGHBD_WRAPLOW(s1 - s5, bd); - x6 = HIGHBD_WRAPLOW(s2 - s6, bd); - x7 = HIGHBD_WRAPLOW(s3 - s7, bd); - x8 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s8 + s12), bd); - x9 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s9 + s13), bd); - x10 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s10 + s14), bd); - x11 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s11 + s15), bd); - x12 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s8 - s12), bd); - x13 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s9 - s13), bd); - x14 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s10 - s14), bd); - x15 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s11 - s15), bd); - - // stage 3 - s0 = x0; - s1 = x1; - s2 = x2; - s3 = x3; - s4 = x4 * cospi_8_64 + x5 * cospi_24_64; - s5 = x4 * cospi_24_64 - x5 * cospi_8_64; - s6 = -x6 * cospi_24_64 + x7 * cospi_8_64; - s7 = x6 * cospi_8_64 + x7 * cospi_24_64; - s8 = x8; - s9 = x9; - s10 = x10; - s11 = x11; - s12 = x12 * cospi_8_64 + x13 * cospi_24_64; - s13 = x12 * cospi_24_64 - x13 * cospi_8_64; - s14 = -x14 * cospi_24_64 + x15 * cospi_8_64; - s15 = x14 * cospi_8_64 + x15 * cospi_24_64; - - x0 = HIGHBD_WRAPLOW(s0 + s2, bd); - x1 = HIGHBD_WRAPLOW(s1 + s3, bd); - x2 = HIGHBD_WRAPLOW(s0 - s2, bd); - x3 = HIGHBD_WRAPLOW(s1 - s3, bd); - x4 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s4 + s6), bd); - x5 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s5 + s7), bd); - x6 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s4 - s6), bd); - x7 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s5 - s7), bd); - x8 = HIGHBD_WRAPLOW(s8 + s10, bd); - x9 = HIGHBD_WRAPLOW(s9 + s11, bd); - x10 = HIGHBD_WRAPLOW(s8 - s10, bd); - x11 = HIGHBD_WRAPLOW(s9 - s11, bd); - x12 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s12 + s14), bd); - x13 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s13 + s15), bd); - x14 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s12 - s14), bd); - x15 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s13 - s15), bd); - - // stage 4 - s2 = (- cospi_16_64) * (x2 + x3); - s3 = cospi_16_64 * (x2 - x3); - s6 = cospi_16_64 * (x6 + x7); - s7 = cospi_16_64 * (-x6 + x7); - s10 = cospi_16_64 * (x10 + x11); - s11 = cospi_16_64 * (-x10 + x11); - s14 = (- cospi_16_64) * (x14 + x15); - s15 = cospi_16_64 * (x14 - x15); - - x2 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s2), bd); - x3 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s3), bd); - x6 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s6), bd); - x7 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s7), bd); - x10 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s10), bd); - x11 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s11), bd); - x14 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s14), bd); - x15 = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(s15), bd); - - output[0] = HIGHBD_WRAPLOW(x0, bd); - output[1] = HIGHBD_WRAPLOW(-x8, bd); - output[2] = HIGHBD_WRAPLOW(x12, bd); - output[3] = HIGHBD_WRAPLOW(-x4, bd); - output[4] = HIGHBD_WRAPLOW(x6, bd); - output[5] = HIGHBD_WRAPLOW(x14, bd); - output[6] = HIGHBD_WRAPLOW(x10, bd); - output[7] = HIGHBD_WRAPLOW(x2, bd); - output[8] = HIGHBD_WRAPLOW(x3, bd); - output[9] = HIGHBD_WRAPLOW(x11, bd); - output[10] = HIGHBD_WRAPLOW(x15, bd); - output[11] = HIGHBD_WRAPLOW(x7, bd); - output[12] = HIGHBD_WRAPLOW(x5, bd); - output[13] = HIGHBD_WRAPLOW(-x13, bd); - output[14] = HIGHBD_WRAPLOW(x9, bd); - output[15] = HIGHBD_WRAPLOW(-x1, bd); -} - -void vpx_highbd_idct16x16_10_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - tran_low_t out[16 * 16] = { 0 }; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[16], temp_out[16]; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - // First transform rows. Since all non-zero dct coefficients are in - // upper-left 4x4 area, we only need to calculate first 4 rows here. - for (i = 0; i < 4; ++i) { - vpx_highbd_idct16_c(input, outptr, bd); - input += 16; - outptr += 16; - } - - // Then transform columns. - for (i = 0; i < 16; ++i) { - for (j = 0; j < 16; ++j) - temp_in[j] = out[j*16 + i]; - vpx_highbd_idct16_c(temp_in, temp_out, bd); - for (j = 0; j < 16; ++j) { - dest[j * stride + i] = highbd_clip_pixel_add( - dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd); - } - } -} - -void vpx_highbd_idct16x16_1_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - int i, j; - tran_high_t a1; - tran_low_t out = HIGHBD_WRAPLOW( - highbd_dct_const_round_shift(input[0] * cospi_16_64), bd); - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - out = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(out * cospi_16_64), bd); - a1 = ROUND_POWER_OF_TWO(out, 6); - for (j = 0; j < 16; ++j) { - for (i = 0; i < 16; ++i) - dest[i] = highbd_clip_pixel_add(dest[i], a1, bd); - dest += stride; - } -} - -static void highbd_idct32_c(const tran_low_t *input, - tran_low_t *output, int bd) { - tran_low_t step1[32], step2[32]; - tran_high_t temp1, temp2; - (void) bd; - - // stage 1 - step1[0] = input[0]; - step1[1] = input[16]; - step1[2] = input[8]; - step1[3] = input[24]; - step1[4] = input[4]; - step1[5] = input[20]; - step1[6] = input[12]; - step1[7] = input[28]; - step1[8] = input[2]; - step1[9] = input[18]; - step1[10] = input[10]; - step1[11] = input[26]; - step1[12] = input[6]; - step1[13] = input[22]; - step1[14] = input[14]; - step1[15] = input[30]; - - temp1 = input[1] * cospi_31_64 - input[31] * cospi_1_64; - temp2 = input[1] * cospi_1_64 + input[31] * cospi_31_64; - step1[16] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[31] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = input[17] * cospi_15_64 - input[15] * cospi_17_64; - temp2 = input[17] * cospi_17_64 + input[15] * cospi_15_64; - step1[17] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[30] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = input[9] * cospi_23_64 - input[23] * cospi_9_64; - temp2 = input[9] * cospi_9_64 + input[23] * cospi_23_64; - step1[18] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[29] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = input[25] * cospi_7_64 - input[7] * cospi_25_64; - temp2 = input[25] * cospi_25_64 + input[7] * cospi_7_64; - step1[19] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[28] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = input[5] * cospi_27_64 - input[27] * cospi_5_64; - temp2 = input[5] * cospi_5_64 + input[27] * cospi_27_64; - step1[20] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[27] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = input[21] * cospi_11_64 - input[11] * cospi_21_64; - temp2 = input[21] * cospi_21_64 + input[11] * cospi_11_64; - step1[21] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[26] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = input[13] * cospi_19_64 - input[19] * cospi_13_64; - temp2 = input[13] * cospi_13_64 + input[19] * cospi_19_64; - step1[22] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[25] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = input[29] * cospi_3_64 - input[3] * cospi_29_64; - temp2 = input[29] * cospi_29_64 + input[3] * cospi_3_64; - step1[23] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[24] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - // 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]; - - temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64; - temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64; - step2[8] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[15] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64; - temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64; - step2[9] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[14] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64; - temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64; - step2[10] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[13] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64; - temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64; - step2[11] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[12] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - step2[16] = HIGHBD_WRAPLOW(step1[16] + step1[17], bd); - step2[17] = HIGHBD_WRAPLOW(step1[16] - step1[17], bd); - step2[18] = HIGHBD_WRAPLOW(-step1[18] + step1[19], bd); - step2[19] = HIGHBD_WRAPLOW(step1[18] + step1[19], bd); - step2[20] = HIGHBD_WRAPLOW(step1[20] + step1[21], bd); - step2[21] = HIGHBD_WRAPLOW(step1[20] - step1[21], bd); - step2[22] = HIGHBD_WRAPLOW(-step1[22] + step1[23], bd); - step2[23] = HIGHBD_WRAPLOW(step1[22] + step1[23], bd); - step2[24] = HIGHBD_WRAPLOW(step1[24] + step1[25], bd); - step2[25] = HIGHBD_WRAPLOW(step1[24] - step1[25], bd); - step2[26] = HIGHBD_WRAPLOW(-step1[26] + step1[27], bd); - step2[27] = HIGHBD_WRAPLOW(step1[26] + step1[27], bd); - step2[28] = HIGHBD_WRAPLOW(step1[28] + step1[29], bd); - step2[29] = HIGHBD_WRAPLOW(step1[28] - step1[29], bd); - step2[30] = HIGHBD_WRAPLOW(-step1[30] + step1[31], bd); - step2[31] = HIGHBD_WRAPLOW(step1[30] + step1[31], bd); - - // stage 3 - step1[0] = step2[0]; - step1[1] = step2[1]; - step1[2] = step2[2]; - step1[3] = step2[3]; - - temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64; - temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64; - step1[4] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[7] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64; - temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64; - step1[5] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[6] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - - step1[8] = HIGHBD_WRAPLOW(step2[8] + step2[9], bd); - step1[9] = HIGHBD_WRAPLOW(step2[8] - step2[9], bd); - step1[10] = HIGHBD_WRAPLOW(-step2[10] + step2[11], bd); - step1[11] = HIGHBD_WRAPLOW(step2[10] + step2[11], bd); - step1[12] = HIGHBD_WRAPLOW(step2[12] + step2[13], bd); - step1[13] = HIGHBD_WRAPLOW(step2[12] - step2[13], bd); - step1[14] = HIGHBD_WRAPLOW(-step2[14] + step2[15], bd); - step1[15] = HIGHBD_WRAPLOW(step2[14] + step2[15], bd); - - step1[16] = step2[16]; - step1[31] = step2[31]; - temp1 = -step2[17] * cospi_4_64 + step2[30] * cospi_28_64; - temp2 = step2[17] * cospi_28_64 + step2[30] * cospi_4_64; - step1[17] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[30] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = -step2[18] * cospi_28_64 - step2[29] * cospi_4_64; - temp2 = -step2[18] * cospi_4_64 + step2[29] * cospi_28_64; - step1[18] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[29] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step1[19] = step2[19]; - step1[20] = step2[20]; - temp1 = -step2[21] * cospi_20_64 + step2[26] * cospi_12_64; - temp2 = step2[21] * cospi_12_64 + step2[26] * cospi_20_64; - step1[21] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[26] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = -step2[22] * cospi_12_64 - step2[25] * cospi_20_64; - temp2 = -step2[22] * cospi_20_64 + step2[25] * cospi_12_64; - step1[22] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[25] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step1[23] = step2[23]; - step1[24] = step2[24]; - step1[27] = step2[27]; - step1[28] = step2[28]; - - // stage 4 - temp1 = (step1[0] + step1[1]) * cospi_16_64; - temp2 = (step1[0] - step1[1]) * cospi_16_64; - step2[0] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[1] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64; - temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64; - step2[2] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[3] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step2[4] = HIGHBD_WRAPLOW(step1[4] + step1[5], bd); - step2[5] = HIGHBD_WRAPLOW(step1[4] - step1[5], bd); - step2[6] = HIGHBD_WRAPLOW(-step1[6] + step1[7], bd); - step2[7] = HIGHBD_WRAPLOW(step1[6] + step1[7], bd); - - step2[8] = step1[8]; - step2[15] = step1[15]; - temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64; - temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64; - step2[9] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[14] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64; - temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64; - step2[10] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[13] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step2[11] = step1[11]; - step2[12] = step1[12]; - - step2[16] = HIGHBD_WRAPLOW(step1[16] + step1[19], bd); - step2[17] = HIGHBD_WRAPLOW(step1[17] + step1[18], bd); - step2[18] = HIGHBD_WRAPLOW(step1[17] - step1[18], bd); - step2[19] = HIGHBD_WRAPLOW(step1[16] - step1[19], bd); - step2[20] = HIGHBD_WRAPLOW(-step1[20] + step1[23], bd); - step2[21] = HIGHBD_WRAPLOW(-step1[21] + step1[22], bd); - step2[22] = HIGHBD_WRAPLOW(step1[21] + step1[22], bd); - step2[23] = HIGHBD_WRAPLOW(step1[20] + step1[23], bd); - - step2[24] = HIGHBD_WRAPLOW(step1[24] + step1[27], bd); - step2[25] = HIGHBD_WRAPLOW(step1[25] + step1[26], bd); - step2[26] = HIGHBD_WRAPLOW(step1[25] - step1[26], bd); - step2[27] = HIGHBD_WRAPLOW(step1[24] - step1[27], bd); - step2[28] = HIGHBD_WRAPLOW(-step1[28] + step1[31], bd); - step2[29] = HIGHBD_WRAPLOW(-step1[29] + step1[30], bd); - step2[30] = HIGHBD_WRAPLOW(step1[29] + step1[30], bd); - step2[31] = HIGHBD_WRAPLOW(step1[28] + step1[31], bd); - - // stage 5 - step1[0] = HIGHBD_WRAPLOW(step2[0] + step2[3], bd); - step1[1] = HIGHBD_WRAPLOW(step2[1] + step2[2], bd); - step1[2] = HIGHBD_WRAPLOW(step2[1] - step2[2], bd); - step1[3] = HIGHBD_WRAPLOW(step2[0] - step2[3], bd); - step1[4] = step2[4]; - temp1 = (step2[6] - step2[5]) * cospi_16_64; - temp2 = (step2[5] + step2[6]) * cospi_16_64; - step1[5] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[6] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step1[7] = step2[7]; - - step1[8] = HIGHBD_WRAPLOW(step2[8] + step2[11], bd); - step1[9] = HIGHBD_WRAPLOW(step2[9] + step2[10], bd); - step1[10] = HIGHBD_WRAPLOW(step2[9] - step2[10], bd); - step1[11] = HIGHBD_WRAPLOW(step2[8] - step2[11], bd); - step1[12] = HIGHBD_WRAPLOW(-step2[12] + step2[15], bd); - step1[13] = HIGHBD_WRAPLOW(-step2[13] + step2[14], bd); - step1[14] = HIGHBD_WRAPLOW(step2[13] + step2[14], bd); - step1[15] = HIGHBD_WRAPLOW(step2[12] + step2[15], bd); - - step1[16] = step2[16]; - step1[17] = step2[17]; - temp1 = -step2[18] * cospi_8_64 + step2[29] * cospi_24_64; - temp2 = step2[18] * cospi_24_64 + step2[29] * cospi_8_64; - step1[18] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[29] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = -step2[19] * cospi_8_64 + step2[28] * cospi_24_64; - temp2 = step2[19] * cospi_24_64 + step2[28] * cospi_8_64; - step1[19] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[28] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = -step2[20] * cospi_24_64 - step2[27] * cospi_8_64; - temp2 = -step2[20] * cospi_8_64 + step2[27] * cospi_24_64; - step1[20] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[27] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = -step2[21] * cospi_24_64 - step2[26] * cospi_8_64; - temp2 = -step2[21] * cospi_8_64 + step2[26] * cospi_24_64; - step1[21] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[26] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step1[22] = step2[22]; - step1[23] = step2[23]; - step1[24] = step2[24]; - step1[25] = step2[25]; - step1[30] = step2[30]; - step1[31] = step2[31]; - - // stage 6 - step2[0] = HIGHBD_WRAPLOW(step1[0] + step1[7], bd); - step2[1] = HIGHBD_WRAPLOW(step1[1] + step1[6], bd); - step2[2] = HIGHBD_WRAPLOW(step1[2] + step1[5], bd); - step2[3] = HIGHBD_WRAPLOW(step1[3] + step1[4], bd); - step2[4] = HIGHBD_WRAPLOW(step1[3] - step1[4], bd); - step2[5] = HIGHBD_WRAPLOW(step1[2] - step1[5], bd); - step2[6] = HIGHBD_WRAPLOW(step1[1] - step1[6], bd); - step2[7] = HIGHBD_WRAPLOW(step1[0] - step1[7], bd); - step2[8] = step1[8]; - step2[9] = step1[9]; - temp1 = (-step1[10] + step1[13]) * cospi_16_64; - temp2 = (step1[10] + step1[13]) * cospi_16_64; - step2[10] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[13] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = (-step1[11] + step1[12]) * cospi_16_64; - temp2 = (step1[11] + step1[12]) * cospi_16_64; - step2[11] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step2[12] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step2[14] = step1[14]; - step2[15] = step1[15]; - - step2[16] = HIGHBD_WRAPLOW(step1[16] + step1[23], bd); - step2[17] = HIGHBD_WRAPLOW(step1[17] + step1[22], bd); - step2[18] = HIGHBD_WRAPLOW(step1[18] + step1[21], bd); - step2[19] = HIGHBD_WRAPLOW(step1[19] + step1[20], bd); - step2[20] = HIGHBD_WRAPLOW(step1[19] - step1[20], bd); - step2[21] = HIGHBD_WRAPLOW(step1[18] - step1[21], bd); - step2[22] = HIGHBD_WRAPLOW(step1[17] - step1[22], bd); - step2[23] = HIGHBD_WRAPLOW(step1[16] - step1[23], bd); - - step2[24] = HIGHBD_WRAPLOW(-step1[24] + step1[31], bd); - step2[25] = HIGHBD_WRAPLOW(-step1[25] + step1[30], bd); - step2[26] = HIGHBD_WRAPLOW(-step1[26] + step1[29], bd); - step2[27] = HIGHBD_WRAPLOW(-step1[27] + step1[28], bd); - step2[28] = HIGHBD_WRAPLOW(step1[27] + step1[28], bd); - step2[29] = HIGHBD_WRAPLOW(step1[26] + step1[29], bd); - step2[30] = HIGHBD_WRAPLOW(step1[25] + step1[30], bd); - step2[31] = HIGHBD_WRAPLOW(step1[24] + step1[31], bd); - - // stage 7 - step1[0] = HIGHBD_WRAPLOW(step2[0] + step2[15], bd); - step1[1] = HIGHBD_WRAPLOW(step2[1] + step2[14], bd); - step1[2] = HIGHBD_WRAPLOW(step2[2] + step2[13], bd); - step1[3] = HIGHBD_WRAPLOW(step2[3] + step2[12], bd); - step1[4] = HIGHBD_WRAPLOW(step2[4] + step2[11], bd); - step1[5] = HIGHBD_WRAPLOW(step2[5] + step2[10], bd); - step1[6] = HIGHBD_WRAPLOW(step2[6] + step2[9], bd); - step1[7] = HIGHBD_WRAPLOW(step2[7] + step2[8], bd); - step1[8] = HIGHBD_WRAPLOW(step2[7] - step2[8], bd); - step1[9] = HIGHBD_WRAPLOW(step2[6] - step2[9], bd); - step1[10] = HIGHBD_WRAPLOW(step2[5] - step2[10], bd); - step1[11] = HIGHBD_WRAPLOW(step2[4] - step2[11], bd); - step1[12] = HIGHBD_WRAPLOW(step2[3] - step2[12], bd); - step1[13] = HIGHBD_WRAPLOW(step2[2] - step2[13], bd); - step1[14] = HIGHBD_WRAPLOW(step2[1] - step2[14], bd); - step1[15] = HIGHBD_WRAPLOW(step2[0] - step2[15], bd); - - step1[16] = step2[16]; - step1[17] = step2[17]; - step1[18] = step2[18]; - step1[19] = step2[19]; - temp1 = (-step2[20] + step2[27]) * cospi_16_64; - temp2 = (step2[20] + step2[27]) * cospi_16_64; - step1[20] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[27] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = (-step2[21] + step2[26]) * cospi_16_64; - temp2 = (step2[21] + step2[26]) * cospi_16_64; - step1[21] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[26] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = (-step2[22] + step2[25]) * cospi_16_64; - temp2 = (step2[22] + step2[25]) * cospi_16_64; - step1[22] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[25] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - temp1 = (-step2[23] + step2[24]) * cospi_16_64; - temp2 = (step2[23] + step2[24]) * cospi_16_64; - step1[23] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp1), bd); - step1[24] = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(temp2), bd); - step1[28] = step2[28]; - step1[29] = step2[29]; - step1[30] = step2[30]; - step1[31] = step2[31]; - - // final stage - output[0] = HIGHBD_WRAPLOW(step1[0] + step1[31], bd); - output[1] = HIGHBD_WRAPLOW(step1[1] + step1[30], bd); - output[2] = HIGHBD_WRAPLOW(step1[2] + step1[29], bd); - output[3] = HIGHBD_WRAPLOW(step1[3] + step1[28], bd); - output[4] = HIGHBD_WRAPLOW(step1[4] + step1[27], bd); - output[5] = HIGHBD_WRAPLOW(step1[5] + step1[26], bd); - output[6] = HIGHBD_WRAPLOW(step1[6] + step1[25], bd); - output[7] = HIGHBD_WRAPLOW(step1[7] + step1[24], bd); - output[8] = HIGHBD_WRAPLOW(step1[8] + step1[23], bd); - output[9] = HIGHBD_WRAPLOW(step1[9] + step1[22], bd); - output[10] = HIGHBD_WRAPLOW(step1[10] + step1[21], bd); - output[11] = HIGHBD_WRAPLOW(step1[11] + step1[20], bd); - output[12] = HIGHBD_WRAPLOW(step1[12] + step1[19], bd); - output[13] = HIGHBD_WRAPLOW(step1[13] + step1[18], bd); - output[14] = HIGHBD_WRAPLOW(step1[14] + step1[17], bd); - output[15] = HIGHBD_WRAPLOW(step1[15] + step1[16], bd); - output[16] = HIGHBD_WRAPLOW(step1[15] - step1[16], bd); - output[17] = HIGHBD_WRAPLOW(step1[14] - step1[17], bd); - output[18] = HIGHBD_WRAPLOW(step1[13] - step1[18], bd); - output[19] = HIGHBD_WRAPLOW(step1[12] - step1[19], bd); - output[20] = HIGHBD_WRAPLOW(step1[11] - step1[20], bd); - output[21] = HIGHBD_WRAPLOW(step1[10] - step1[21], bd); - output[22] = HIGHBD_WRAPLOW(step1[9] - step1[22], bd); - output[23] = HIGHBD_WRAPLOW(step1[8] - step1[23], bd); - output[24] = HIGHBD_WRAPLOW(step1[7] - step1[24], bd); - output[25] = HIGHBD_WRAPLOW(step1[6] - step1[25], bd); - output[26] = HIGHBD_WRAPLOW(step1[5] - step1[26], bd); - output[27] = HIGHBD_WRAPLOW(step1[4] - step1[27], bd); - output[28] = HIGHBD_WRAPLOW(step1[3] - step1[28], bd); - output[29] = HIGHBD_WRAPLOW(step1[2] - step1[29], bd); - output[30] = HIGHBD_WRAPLOW(step1[1] - step1[30], bd); - output[31] = HIGHBD_WRAPLOW(step1[0] - step1[31], bd); -} - -void vpx_highbd_idct32x32_1024_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - tran_low_t out[32 * 32]; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[32], temp_out[32]; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - // Rows - for (i = 0; i < 32; ++i) { - tran_low_t zero_coeff[16]; - for (j = 0; j < 16; ++j) - zero_coeff[j] = input[2 * j] | input[2 * j + 1]; - for (j = 0; j < 8; ++j) - zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1]; - for (j = 0; j < 4; ++j) - zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1]; - for (j = 0; j < 2; ++j) - zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1]; - - if (zero_coeff[0] | zero_coeff[1]) - highbd_idct32_c(input, outptr, bd); - else - memset(outptr, 0, sizeof(tran_low_t) * 32); - input += 32; - outptr += 32; - } - - // Columns - for (i = 0; i < 32; ++i) { - for (j = 0; j < 32; ++j) - temp_in[j] = out[j * 32 + i]; - highbd_idct32_c(temp_in, temp_out, bd); - for (j = 0; j < 32; ++j) { - dest[j * stride + i] = highbd_clip_pixel_add( - dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd); - } - } -} - -void vpx_highbd_idct32x32_34_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - tran_low_t out[32 * 32] = {0}; - tran_low_t *outptr = out; - int i, j; - tran_low_t temp_in[32], temp_out[32]; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - // Rows - // Only upper-left 8x8 has non-zero coeff. - for (i = 0; i < 8; ++i) { - highbd_idct32_c(input, outptr, bd); - input += 32; - outptr += 32; - } - // Columns - for (i = 0; i < 32; ++i) { - for (j = 0; j < 32; ++j) - temp_in[j] = out[j * 32 + i]; - highbd_idct32_c(temp_in, temp_out, bd); - for (j = 0; j < 32; ++j) { - dest[j * stride + i] = highbd_clip_pixel_add( - dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd); - } - } -} - -void vpx_highbd_idct32x32_1_add_c(const tran_low_t *input, uint8_t *dest8, - int stride, int bd) { - int i, j; - int a1; - uint16_t *dest = CONVERT_TO_SHORTPTR(dest8); - - tran_low_t out = HIGHBD_WRAPLOW( - highbd_dct_const_round_shift(input[0] * cospi_16_64), bd); - out = HIGHBD_WRAPLOW(highbd_dct_const_round_shift(out * cospi_16_64), bd); - a1 = ROUND_POWER_OF_TWO(out, 6); - - for (j = 0; j < 32; ++j) { - for (i = 0; i < 32; ++i) - dest[i] = highbd_clip_pixel_add(dest[i], a1, bd); - dest += stride; - } -} -#endif // CONFIG_VP9_HIGHBITDEPTH |