ref: 68b3459819600f7e0a313f49d229ff8678efaeaa
dir: /vpx_dsp/inv_txfm.c/
/* * 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 <stdlib.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 *input, uint8_t *dest, int stride) { int i; tran_high_t a1, e1; tran_low_t tmp[4]; const tran_low_t *ip = input; 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[stride * 0] = clip_pixel_add(dest[stride * 0], a1); dest[stride * 1] = clip_pixel_add(dest[stride * 1], e1); dest[stride * 2] = clip_pixel_add(dest[stride * 2], e1); dest[stride * 3] = clip_pixel_add(dest[stride * 3], e1); ip++; dest++; } } 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)) { memset(output, 0, 4 * sizeof(*output)); return; } // 32-bit result is enough for the following multiplications. 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 idct4_c(const tran_low_t *input, tran_low_t *output) { int16_t step[4]; tran_high_t temp1, temp2; // stage 1 temp1 = ((int16_t)input[0] + (int16_t)input[2]) * cospi_16_64; temp2 = ((int16_t)input[0] - (int16_t)input[2]) * cospi_16_64; step[0] = WRAPLOW(dct_const_round_shift(temp1)); step[1] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[1] * cospi_24_64 - (int16_t)input[3] * cospi_8_64; temp2 = (int16_t)input[1] * cospi_8_64 + (int16_t)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) { int i, j; tran_low_t out[4 * 4]; tran_low_t *outptr = out; 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 stride) { int i; tran_high_t a1; tran_low_t out = WRAPLOW(dct_const_round_shift((int16_t)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 += stride; } } 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)) { memset(output, 0, 8 * sizeof(*output)); 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 idct8_c(const tran_low_t *input, tran_low_t *output) { int16_t step1[8], step2[8]; tran_high_t temp1, temp2; // stage 1 step1[0] = (int16_t)input[0]; step1[2] = (int16_t)input[4]; step1[1] = (int16_t)input[2]; step1[3] = (int16_t)input[6]; temp1 = (int16_t)input[1] * cospi_28_64 - (int16_t)input[7] * cospi_4_64; temp2 = (int16_t)input[1] * cospi_4_64 + (int16_t)input[7] * cospi_28_64; step1[4] = WRAPLOW(dct_const_round_shift(temp1)); step1[7] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[5] * cospi_12_64 - (int16_t)input[3] * cospi_20_64; temp2 = (int16_t)input[5] * cospi_20_64 + (int16_t)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) { int i, j; tran_low_t out[8 * 8]; tran_low_t *outptr = out; 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_12_add_c(const tran_low_t *input, uint8_t *dest, int stride) { int i, j; tran_low_t out[8 * 8] = { 0 }; tran_low_t *outptr = out; 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 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((int16_t)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 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)) { 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 = 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 idct16_c(const tran_low_t *input, tran_low_t *output) { int16_t step1[16], step2[16]; tran_high_t temp1, temp2; // stage 1 step1[0] = (int16_t)input[0 / 2]; step1[1] = (int16_t)input[16 / 2]; step1[2] = (int16_t)input[8 / 2]; step1[3] = (int16_t)input[24 / 2]; step1[4] = (int16_t)input[4 / 2]; step1[5] = (int16_t)input[20 / 2]; step1[6] = (int16_t)input[12 / 2]; step1[7] = (int16_t)input[28 / 2]; step1[8] = (int16_t)input[2 / 2]; step1[9] = (int16_t)input[18 / 2]; step1[10] = (int16_t)input[10 / 2]; step1[11] = (int16_t)input[26 / 2]; step1[12] = (int16_t)input[6 / 2]; step1[13] = (int16_t)input[22 / 2]; step1[14] = (int16_t)input[14 / 2]; step1[15] = (int16_t)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) { int i, j; tran_low_t out[16 * 16]; tran_low_t *outptr = out; 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 vpx_idct16x16_38_add_c(const tran_low_t *input, uint8_t *dest, int stride) { int i, j; tran_low_t out[16 * 16] = { 0 }; tran_low_t *outptr = out; tran_low_t temp_in[16], temp_out[16]; // First transform rows. Since all non-zero dct coefficients are in // upper-left 8x8 area, we only need to calculate first 8 rows here. for (i = 0; i < 8; ++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_10_add_c(const tran_low_t *input, uint8_t *dest, int stride) { int i, j; tran_low_t out[16 * 16] = { 0 }; tran_low_t *outptr = out; 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((int16_t)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) { int16_t step1[32], step2[32]; tran_high_t temp1, temp2; // stage 1 step1[0] = (int16_t)input[0]; step1[1] = (int16_t)input[16]; step1[2] = (int16_t)input[8]; step1[3] = (int16_t)input[24]; step1[4] = (int16_t)input[4]; step1[5] = (int16_t)input[20]; step1[6] = (int16_t)input[12]; step1[7] = (int16_t)input[28]; step1[8] = (int16_t)input[2]; step1[9] = (int16_t)input[18]; step1[10] = (int16_t)input[10]; step1[11] = (int16_t)input[26]; step1[12] = (int16_t)input[6]; step1[13] = (int16_t)input[22]; step1[14] = (int16_t)input[14]; step1[15] = (int16_t)input[30]; temp1 = (int16_t)input[1] * cospi_31_64 - (int16_t)input[31] * cospi_1_64; temp2 = (int16_t)input[1] * cospi_1_64 + (int16_t)input[31] * cospi_31_64; step1[16] = WRAPLOW(dct_const_round_shift(temp1)); step1[31] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[17] * cospi_15_64 - (int16_t)input[15] * cospi_17_64; temp2 = (int16_t)input[17] * cospi_17_64 + (int16_t)input[15] * cospi_15_64; step1[17] = WRAPLOW(dct_const_round_shift(temp1)); step1[30] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[9] * cospi_23_64 - (int16_t)input[23] * cospi_9_64; temp2 = (int16_t)input[9] * cospi_9_64 + (int16_t)input[23] * cospi_23_64; step1[18] = WRAPLOW(dct_const_round_shift(temp1)); step1[29] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[25] * cospi_7_64 - (int16_t)input[7] * cospi_25_64; temp2 = (int16_t)input[25] * cospi_25_64 + (int16_t)input[7] * cospi_7_64; step1[19] = WRAPLOW(dct_const_round_shift(temp1)); step1[28] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[5] * cospi_27_64 - (int16_t)input[27] * cospi_5_64; temp2 = (int16_t)input[5] * cospi_5_64 + (int16_t)input[27] * cospi_27_64; step1[20] = WRAPLOW(dct_const_round_shift(temp1)); step1[27] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[21] * cospi_11_64 - (int16_t)input[11] * cospi_21_64; temp2 = (int16_t)input[21] * cospi_21_64 + (int16_t)input[11] * cospi_11_64; step1[21] = WRAPLOW(dct_const_round_shift(temp1)); step1[26] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[13] * cospi_19_64 - (int16_t)input[19] * cospi_13_64; temp2 = (int16_t)input[13] * cospi_13_64 + (int16_t)input[19] * cospi_19_64; step1[22] = WRAPLOW(dct_const_round_shift(temp1)); step1[25] = WRAPLOW(dct_const_round_shift(temp2)); temp1 = (int16_t)input[29] * cospi_3_64 - (int16_t)input[3] * cospi_29_64; temp2 = (int16_t)input[29] * cospi_29_64 + (int16_t)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) { int i, j; tran_low_t out[32 * 32]; tran_low_t *outptr = out; tran_low_t temp_in[32], temp_out[32]; // Rows for (i = 0; i < 32; ++i) { int16_t zero_coeff = 0; for (j = 0; j < 32; ++j) zero_coeff |= input[j]; if (zero_coeff) 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) { int i, j; tran_low_t out[32 * 32] = { 0 }; tran_low_t *outptr = out; 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) { int i, j; tran_low_t out[32 * 32] = { 0 }; tran_low_t *outptr = out; 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((int16_t)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 // 12 signal input bits + 7 2D forward transform amplify bits + 5 1D inverse // transform amplify bits + 1 bit for contingency in rounding and quantizing #define HIGHBD_VALID_TXFM_MAGNITUDE_RANGE (1 << 25) static INLINE int detect_invalid_highbd_input(const tran_low_t *input, int size) { int i; for (i = 0; i < size; ++i) if (abs(input[i]) >= HIGHBD_VALID_TXFM_MAGNITUDE_RANGE) return 1; return 0; } void vpx_highbd_iwht4x4_16_add_c(const tran_low_t *input, uint16_t *dest, 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; 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 *input, uint16_t *dest, int stride, int bd) { int i; tran_high_t a1, e1; tran_low_t tmp[4]; const tran_low_t *ip = input; tran_low_t *op = tmp; (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[stride * 0] = highbd_clip_pixel_add(dest[stride * 0], a1, bd); dest[stride * 1] = highbd_clip_pixel_add(dest[stride * 1], e1, bd); dest[stride * 2] = highbd_clip_pixel_add(dest[stride * 2], e1, bd); dest[stride * 3] = highbd_clip_pixel_add(dest[stride * 3], e1, bd); ip++; dest++; } } 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 (detect_invalid_highbd_input(input, 4)) { #if CONFIG_COEFFICIENT_RANGE_CHECKING assert(0 && "invalid highbd txfm input"); #endif // CONFIG_COEFFICIENT_RANGE_CHECKING memset(output, 0, sizeof(*output) * 4); return; } if (!(x0 | x1 | x2 | x3)) { memset(output, 0, 4 * sizeof(*output)); return; } s0 = (tran_high_t)sinpi_1_9 * x0; s1 = (tran_high_t)sinpi_2_9 * x0; s2 = (tran_high_t)sinpi_3_9 * x1; s3 = (tran_high_t)sinpi_4_9 * x2; s4 = (tran_high_t)sinpi_1_9 * x2; s5 = (tran_high_t)sinpi_2_9 * x3; s6 = (tran_high_t)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(dct_const_round_shift(s0 + s3), bd); output[1] = HIGHBD_WRAPLOW(dct_const_round_shift(s1 + s3), bd); output[2] = HIGHBD_WRAPLOW(dct_const_round_shift(s2), bd); output[3] = HIGHBD_WRAPLOW(dct_const_round_shift(s0 + s1 - s3), bd); } 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; if (detect_invalid_highbd_input(input, 4)) { #if CONFIG_COEFFICIENT_RANGE_CHECKING assert(0 && "invalid highbd txfm input"); #endif // CONFIG_COEFFICIENT_RANGE_CHECKING memset(output, 0, sizeof(*output) * 4); return; } // stage 1 temp1 = (input[0] + input[2]) * (tran_high_t)cospi_16_64; temp2 = (input[0] - input[2]) * (tran_high_t)cospi_16_64; step[0] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step[1] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[1] * (tran_high_t)cospi_24_64 - input[3] * (tran_high_t)cospi_8_64; temp2 = input[1] * (tran_high_t)cospi_8_64 + input[3] * (tran_high_t)cospi_24_64; step[2] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step[3] = HIGHBD_WRAPLOW(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, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[4 * 4]; tran_low_t *outptr = out; tran_low_t temp_in[4], temp_out[4]; // 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, uint16_t *dest, int stride, int bd) { int i; tran_high_t a1; tran_low_t out = HIGHBD_WRAPLOW( dct_const_round_shift(input[0] * (tran_high_t)cospi_16_64), bd); out = HIGHBD_WRAPLOW(dct_const_round_shift(out * (tran_high_t)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 += stride; } } 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 (detect_invalid_highbd_input(input, 8)) { #if CONFIG_COEFFICIENT_RANGE_CHECKING assert(0 && "invalid highbd txfm input"); #endif // CONFIG_COEFFICIENT_RANGE_CHECKING memset(output, 0, sizeof(*output) * 8); return; } if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) { memset(output, 0, 8 * sizeof(*output)); return; } // stage 1 s0 = (tran_high_t)cospi_2_64 * x0 + (tran_high_t)cospi_30_64 * x1; s1 = (tran_high_t)cospi_30_64 * x0 - (tran_high_t)cospi_2_64 * x1; s2 = (tran_high_t)cospi_10_64 * x2 + (tran_high_t)cospi_22_64 * x3; s3 = (tran_high_t)cospi_22_64 * x2 - (tran_high_t)cospi_10_64 * x3; s4 = (tran_high_t)cospi_18_64 * x4 + (tran_high_t)cospi_14_64 * x5; s5 = (tran_high_t)cospi_14_64 * x4 - (tran_high_t)cospi_18_64 * x5; s6 = (tran_high_t)cospi_26_64 * x6 + (tran_high_t)cospi_6_64 * x7; s7 = (tran_high_t)cospi_6_64 * x6 - (tran_high_t)cospi_26_64 * x7; x0 = HIGHBD_WRAPLOW(dct_const_round_shift(s0 + s4), bd); x1 = HIGHBD_WRAPLOW(dct_const_round_shift(s1 + s5), bd); x2 = HIGHBD_WRAPLOW(dct_const_round_shift(s2 + s6), bd); x3 = HIGHBD_WRAPLOW(dct_const_round_shift(s3 + s7), bd); x4 = HIGHBD_WRAPLOW(dct_const_round_shift(s0 - s4), bd); x5 = HIGHBD_WRAPLOW(dct_const_round_shift(s1 - s5), bd); x6 = HIGHBD_WRAPLOW(dct_const_round_shift(s2 - s6), bd); x7 = HIGHBD_WRAPLOW(dct_const_round_shift(s3 - s7), bd); // stage 2 s0 = x0; s1 = x1; s2 = x2; s3 = x3; s4 = (tran_high_t)cospi_8_64 * x4 + (tran_high_t)cospi_24_64 * x5; s5 = (tran_high_t)cospi_24_64 * x4 - (tran_high_t)cospi_8_64 * x5; s6 = (tran_high_t)(-cospi_24_64) * x6 + (tran_high_t)cospi_8_64 * x7; s7 = (tran_high_t)cospi_8_64 * x6 + (tran_high_t)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(dct_const_round_shift(s4 + s6), bd); x5 = HIGHBD_WRAPLOW(dct_const_round_shift(s5 + s7), bd); x6 = HIGHBD_WRAPLOW(dct_const_round_shift(s4 - s6), bd); x7 = HIGHBD_WRAPLOW(dct_const_round_shift(s5 - s7), bd); // stage 3 s2 = (tran_high_t)cospi_16_64 * (x2 + x3); s3 = (tran_high_t)cospi_16_64 * (x2 - x3); s6 = (tran_high_t)cospi_16_64 * (x6 + x7); s7 = (tran_high_t)cospi_16_64 * (x6 - x7); x2 = HIGHBD_WRAPLOW(dct_const_round_shift(s2), bd); x3 = HIGHBD_WRAPLOW(dct_const_round_shift(s3), bd); x6 = HIGHBD_WRAPLOW(dct_const_round_shift(s6), bd); x7 = HIGHBD_WRAPLOW(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_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; if (detect_invalid_highbd_input(input, 8)) { #if CONFIG_COEFFICIENT_RANGE_CHECKING assert(0 && "invalid highbd txfm input"); #endif // CONFIG_COEFFICIENT_RANGE_CHECKING memset(output, 0, sizeof(*output) * 8); return; } // stage 1 step1[0] = input[0]; step1[2] = input[4]; step1[1] = input[2]; step1[3] = input[6]; temp1 = input[1] * (tran_high_t)cospi_28_64 - input[7] * (tran_high_t)cospi_4_64; temp2 = input[1] * (tran_high_t)cospi_4_64 + input[7] * (tran_high_t)cospi_28_64; step1[4] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[7] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[5] * (tran_high_t)cospi_12_64 - input[3] * (tran_high_t)cospi_20_64; temp2 = input[5] * (tran_high_t)cospi_20_64 + input[3] * (tran_high_t)cospi_12_64; step1[5] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[6] = HIGHBD_WRAPLOW(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]) * (tran_high_t)cospi_16_64; temp2 = (step2[5] + step2[6]) * (tran_high_t)cospi_16_64; step1[5] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[6] = HIGHBD_WRAPLOW(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, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[8 * 8]; tran_low_t *outptr = out; tran_low_t temp_in[8], temp_out[8]; // 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_12_add_c(const tran_low_t *input, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[8 * 8] = { 0 }; tran_low_t *outptr = out; 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) { 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, uint16_t *dest, int stride, int bd) { int i, j; tran_high_t a1; tran_low_t out = HIGHBD_WRAPLOW( dct_const_round_shift(input[0] * (tran_high_t)cospi_16_64), bd); out = HIGHBD_WRAPLOW(dct_const_round_shift(out * (tran_high_t)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_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 (detect_invalid_highbd_input(input, 16)) { #if CONFIG_COEFFICIENT_RANGE_CHECKING assert(0 && "invalid highbd txfm input"); #endif // CONFIG_COEFFICIENT_RANGE_CHECKING memset(output, 0, sizeof(*output) * 16); return; } 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 * (tran_high_t)cospi_1_64 + x1 * (tran_high_t)cospi_31_64; s1 = x0 * (tran_high_t)cospi_31_64 - x1 * (tran_high_t)cospi_1_64; s2 = x2 * (tran_high_t)cospi_5_64 + x3 * (tran_high_t)cospi_27_64; s3 = x2 * (tran_high_t)cospi_27_64 - x3 * (tran_high_t)cospi_5_64; s4 = x4 * (tran_high_t)cospi_9_64 + x5 * (tran_high_t)cospi_23_64; s5 = x4 * (tran_high_t)cospi_23_64 - x5 * (tran_high_t)cospi_9_64; s6 = x6 * (tran_high_t)cospi_13_64 + x7 * (tran_high_t)cospi_19_64; s7 = x6 * (tran_high_t)cospi_19_64 - x7 * (tran_high_t)cospi_13_64; s8 = x8 * (tran_high_t)cospi_17_64 + x9 * (tran_high_t)cospi_15_64; s9 = x8 * (tran_high_t)cospi_15_64 - x9 * (tran_high_t)cospi_17_64; s10 = x10 * (tran_high_t)cospi_21_64 + x11 * (tran_high_t)cospi_11_64; s11 = x10 * (tran_high_t)cospi_11_64 - x11 * (tran_high_t)cospi_21_64; s12 = x12 * (tran_high_t)cospi_25_64 + x13 * (tran_high_t)cospi_7_64; s13 = x12 * (tran_high_t)cospi_7_64 - x13 * (tran_high_t)cospi_25_64; s14 = x14 * (tran_high_t)cospi_29_64 + x15 * (tran_high_t)cospi_3_64; s15 = x14 * (tran_high_t)cospi_3_64 - x15 * (tran_high_t)cospi_29_64; x0 = HIGHBD_WRAPLOW(dct_const_round_shift(s0 + s8), bd); x1 = HIGHBD_WRAPLOW(dct_const_round_shift(s1 + s9), bd); x2 = HIGHBD_WRAPLOW(dct_const_round_shift(s2 + s10), bd); x3 = HIGHBD_WRAPLOW(dct_const_round_shift(s3 + s11), bd); x4 = HIGHBD_WRAPLOW(dct_const_round_shift(s4 + s12), bd); x5 = HIGHBD_WRAPLOW(dct_const_round_shift(s5 + s13), bd); x6 = HIGHBD_WRAPLOW(dct_const_round_shift(s6 + s14), bd); x7 = HIGHBD_WRAPLOW(dct_const_round_shift(s7 + s15), bd); x8 = HIGHBD_WRAPLOW(dct_const_round_shift(s0 - s8), bd); x9 = HIGHBD_WRAPLOW(dct_const_round_shift(s1 - s9), bd); x10 = HIGHBD_WRAPLOW(dct_const_round_shift(s2 - s10), bd); x11 = HIGHBD_WRAPLOW(dct_const_round_shift(s3 - s11), bd); x12 = HIGHBD_WRAPLOW(dct_const_round_shift(s4 - s12), bd); x13 = HIGHBD_WRAPLOW(dct_const_round_shift(s5 - s13), bd); x14 = HIGHBD_WRAPLOW(dct_const_round_shift(s6 - s14), bd); x15 = HIGHBD_WRAPLOW(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 * (tran_high_t)cospi_4_64 + x9 * (tran_high_t)cospi_28_64; s9 = x8 * (tran_high_t)cospi_28_64 - x9 * (tran_high_t)cospi_4_64; s10 = x10 * (tran_high_t)cospi_20_64 + x11 * (tran_high_t)cospi_12_64; s11 = x10 * (tran_high_t)cospi_12_64 - x11 * (tran_high_t)cospi_20_64; s12 = -x12 * (tran_high_t)cospi_28_64 + x13 * (tran_high_t)cospi_4_64; s13 = x12 * (tran_high_t)cospi_4_64 + x13 * (tran_high_t)cospi_28_64; s14 = -x14 * (tran_high_t)cospi_12_64 + x15 * (tran_high_t)cospi_20_64; s15 = x14 * (tran_high_t)cospi_20_64 + x15 * (tran_high_t)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(dct_const_round_shift(s8 + s12), bd); x9 = HIGHBD_WRAPLOW(dct_const_round_shift(s9 + s13), bd); x10 = HIGHBD_WRAPLOW(dct_const_round_shift(s10 + s14), bd); x11 = HIGHBD_WRAPLOW(dct_const_round_shift(s11 + s15), bd); x12 = HIGHBD_WRAPLOW(dct_const_round_shift(s8 - s12), bd); x13 = HIGHBD_WRAPLOW(dct_const_round_shift(s9 - s13), bd); x14 = HIGHBD_WRAPLOW(dct_const_round_shift(s10 - s14), bd); x15 = HIGHBD_WRAPLOW(dct_const_round_shift(s11 - s15), bd); // stage 3 s0 = x0; s1 = x1; s2 = x2; s3 = x3; s4 = x4 * (tran_high_t)cospi_8_64 + x5 * (tran_high_t)cospi_24_64; s5 = x4 * (tran_high_t)cospi_24_64 - x5 * (tran_high_t)cospi_8_64; s6 = -x6 * (tran_high_t)cospi_24_64 + x7 * (tran_high_t)cospi_8_64; s7 = x6 * (tran_high_t)cospi_8_64 + x7 * (tran_high_t)cospi_24_64; s8 = x8; s9 = x9; s10 = x10; s11 = x11; s12 = x12 * (tran_high_t)cospi_8_64 + x13 * (tran_high_t)cospi_24_64; s13 = x12 * (tran_high_t)cospi_24_64 - x13 * (tran_high_t)cospi_8_64; s14 = -x14 * (tran_high_t)cospi_24_64 + x15 * (tran_high_t)cospi_8_64; s15 = x14 * (tran_high_t)cospi_8_64 + x15 * (tran_high_t)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(dct_const_round_shift(s4 + s6), bd); x5 = HIGHBD_WRAPLOW(dct_const_round_shift(s5 + s7), bd); x6 = HIGHBD_WRAPLOW(dct_const_round_shift(s4 - s6), bd); x7 = HIGHBD_WRAPLOW(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(dct_const_round_shift(s12 + s14), bd); x13 = HIGHBD_WRAPLOW(dct_const_round_shift(s13 + s15), bd); x14 = HIGHBD_WRAPLOW(dct_const_round_shift(s12 - s14), bd); x15 = HIGHBD_WRAPLOW(dct_const_round_shift(s13 - s15), bd); // stage 4 s2 = (tran_high_t)(-cospi_16_64) * (x2 + x3); s3 = (tran_high_t)cospi_16_64 * (x2 - x3); s6 = (tran_high_t)cospi_16_64 * (x6 + x7); s7 = (tran_high_t)cospi_16_64 * (-x6 + x7); s10 = (tran_high_t)cospi_16_64 * (x10 + x11); s11 = (tran_high_t)cospi_16_64 * (-x10 + x11); s14 = (tran_high_t)(-cospi_16_64) * (x14 + x15); s15 = (tran_high_t)cospi_16_64 * (x14 - x15); x2 = HIGHBD_WRAPLOW(dct_const_round_shift(s2), bd); x3 = HIGHBD_WRAPLOW(dct_const_round_shift(s3), bd); x6 = HIGHBD_WRAPLOW(dct_const_round_shift(s6), bd); x7 = HIGHBD_WRAPLOW(dct_const_round_shift(s7), bd); x10 = HIGHBD_WRAPLOW(dct_const_round_shift(s10), bd); x11 = HIGHBD_WRAPLOW(dct_const_round_shift(s11), bd); x14 = HIGHBD_WRAPLOW(dct_const_round_shift(s14), bd); x15 = HIGHBD_WRAPLOW(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_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; if (detect_invalid_highbd_input(input, 16)) { #if CONFIG_COEFFICIENT_RANGE_CHECKING assert(0 && "invalid highbd txfm input"); #endif // CONFIG_COEFFICIENT_RANGE_CHECKING memset(output, 0, sizeof(*output) * 16); return; } // 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] * (tran_high_t)cospi_30_64 - step1[15] * (tran_high_t)cospi_2_64; temp2 = step1[8] * (tran_high_t)cospi_2_64 + step1[15] * (tran_high_t)cospi_30_64; step2[8] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[15] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step1[9] * (tran_high_t)cospi_14_64 - step1[14] * (tran_high_t)cospi_18_64; temp2 = step1[9] * (tran_high_t)cospi_18_64 + step1[14] * (tran_high_t)cospi_14_64; step2[9] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[14] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step1[10] * (tran_high_t)cospi_22_64 - step1[13] * (tran_high_t)cospi_10_64; temp2 = step1[10] * (tran_high_t)cospi_10_64 + step1[13] * (tran_high_t)cospi_22_64; step2[10] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[13] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step1[11] * (tran_high_t)cospi_6_64 - step1[12] * (tran_high_t)cospi_26_64; temp2 = step1[11] * (tran_high_t)cospi_26_64 + step1[12] * (tran_high_t)cospi_6_64; step2[11] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[12] = HIGHBD_WRAPLOW(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] * (tran_high_t)cospi_28_64 - step2[7] * (tran_high_t)cospi_4_64; temp2 = step2[4] * (tran_high_t)cospi_4_64 + step2[7] * (tran_high_t)cospi_28_64; step1[4] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[7] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step2[5] * (tran_high_t)cospi_12_64 - step2[6] * (tran_high_t)cospi_20_64; temp2 = step2[5] * (tran_high_t)cospi_20_64 + step2[6] * (tran_high_t)cospi_12_64; step1[5] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[6] = HIGHBD_WRAPLOW(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]) * (tran_high_t)cospi_16_64; temp2 = (step1[0] - step1[1]) * (tran_high_t)cospi_16_64; step2[0] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[1] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step1[2] * (tran_high_t)cospi_24_64 - step1[3] * (tran_high_t)cospi_8_64; temp2 = step1[2] * (tran_high_t)cospi_8_64 + step1[3] * (tran_high_t)cospi_24_64; step2[2] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[3] = HIGHBD_WRAPLOW(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] * (tran_high_t)cospi_8_64 + step1[14] * (tran_high_t)cospi_24_64; temp2 = step1[9] * (tran_high_t)cospi_24_64 + step1[14] * (tran_high_t)cospi_8_64; step2[9] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[14] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = -step1[10] * (tran_high_t)cospi_24_64 - step1[13] * (tran_high_t)cospi_8_64; temp2 = -step1[10] * (tran_high_t)cospi_8_64 + step1[13] * (tran_high_t)cospi_24_64; step2[10] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[13] = HIGHBD_WRAPLOW(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]) * (tran_high_t)cospi_16_64; temp2 = (step2[5] + step2[6]) * (tran_high_t)cospi_16_64; step1[5] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[6] = HIGHBD_WRAPLOW(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]) * (tran_high_t)cospi_16_64; temp2 = (step1[10] + step1[13]) * (tran_high_t)cospi_16_64; step2[10] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[13] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = (-step1[11] + step1[12]) * (tran_high_t)cospi_16_64; temp2 = (step1[11] + step1[12]) * (tran_high_t)cospi_16_64; step2[11] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[12] = HIGHBD_WRAPLOW(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, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[16 * 16]; tran_low_t *outptr = out; tran_low_t temp_in[16], temp_out[16]; // 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_idct16x16_38_add_c(const tran_low_t *input, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[16 * 16] = { 0 }; tran_low_t *outptr = out; tran_low_t temp_in[16], temp_out[16]; // First transform rows. Since all non-zero dct coefficients are in // upper-left 8x8 area, we only need to calculate first 8 rows here. for (i = 0; i < 8; ++i) { vpx_highbd_idct16_c(input, outptr, bd); input += 16; outptr += 16; } // Then transform columns for (i = 0; i < 16; ++i) { uint16_t *destT = dest; 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) { destT[i] = highbd_clip_pixel_add(destT[i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd); destT += stride; } } } void vpx_highbd_idct16x16_10_add_c(const tran_low_t *input, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[16 * 16] = { 0 }; tran_low_t *outptr = out; 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) { 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, uint16_t *dest, int stride, int bd) { int i, j; tran_high_t a1; tran_low_t out = HIGHBD_WRAPLOW( dct_const_round_shift(input[0] * (tran_high_t)cospi_16_64), bd); out = HIGHBD_WRAPLOW(dct_const_round_shift(out * (tran_high_t)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; if (detect_invalid_highbd_input(input, 32)) { #if CONFIG_COEFFICIENT_RANGE_CHECKING assert(0 && "invalid highbd txfm input"); #endif // CONFIG_COEFFICIENT_RANGE_CHECKING memset(output, 0, sizeof(*output) * 32); return; } // 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] * (tran_high_t)cospi_31_64 - input[31] * (tran_high_t)cospi_1_64; temp2 = input[1] * (tran_high_t)cospi_1_64 + input[31] * (tran_high_t)cospi_31_64; step1[16] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[31] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[17] * (tran_high_t)cospi_15_64 - input[15] * (tran_high_t)cospi_17_64; temp2 = input[17] * (tran_high_t)cospi_17_64 + input[15] * (tran_high_t)cospi_15_64; step1[17] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[30] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[9] * (tran_high_t)cospi_23_64 - input[23] * (tran_high_t)cospi_9_64; temp2 = input[9] * (tran_high_t)cospi_9_64 + input[23] * (tran_high_t)cospi_23_64; step1[18] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[29] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[25] * (tran_high_t)cospi_7_64 - input[7] * (tran_high_t)cospi_25_64; temp2 = input[25] * (tran_high_t)cospi_25_64 + input[7] * (tran_high_t)cospi_7_64; step1[19] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[28] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[5] * (tran_high_t)cospi_27_64 - input[27] * (tran_high_t)cospi_5_64; temp2 = input[5] * (tran_high_t)cospi_5_64 + input[27] * (tran_high_t)cospi_27_64; step1[20] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[27] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[21] * (tran_high_t)cospi_11_64 - input[11] * (tran_high_t)cospi_21_64; temp2 = input[21] * (tran_high_t)cospi_21_64 + input[11] * (tran_high_t)cospi_11_64; step1[21] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[26] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[13] * (tran_high_t)cospi_19_64 - input[19] * (tran_high_t)cospi_13_64; temp2 = input[13] * (tran_high_t)cospi_13_64 + input[19] * (tran_high_t)cospi_19_64; step1[22] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[25] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = input[29] * (tran_high_t)cospi_3_64 - input[3] * (tran_high_t)cospi_29_64; temp2 = input[29] * (tran_high_t)cospi_29_64 + input[3] * (tran_high_t)cospi_3_64; step1[23] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[24] = HIGHBD_WRAPLOW(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] * (tran_high_t)cospi_30_64 - step1[15] * (tran_high_t)cospi_2_64; temp2 = step1[8] * (tran_high_t)cospi_2_64 + step1[15] * (tran_high_t)cospi_30_64; step2[8] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[15] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step1[9] * (tran_high_t)cospi_14_64 - step1[14] * (tran_high_t)cospi_18_64; temp2 = step1[9] * (tran_high_t)cospi_18_64 + step1[14] * (tran_high_t)cospi_14_64; step2[9] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[14] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step1[10] * (tran_high_t)cospi_22_64 - step1[13] * (tran_high_t)cospi_10_64; temp2 = step1[10] * (tran_high_t)cospi_10_64 + step1[13] * (tran_high_t)cospi_22_64; step2[10] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[13] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step1[11] * (tran_high_t)cospi_6_64 - step1[12] * (tran_high_t)cospi_26_64; temp2 = step1[11] * (tran_high_t)cospi_26_64 + step1[12] * (tran_high_t)cospi_6_64; step2[11] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[12] = HIGHBD_WRAPLOW(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] * (tran_high_t)cospi_28_64 - step2[7] * (tran_high_t)cospi_4_64; temp2 = step2[4] * (tran_high_t)cospi_4_64 + step2[7] * (tran_high_t)cospi_28_64; step1[4] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[7] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step2[5] * (tran_high_t)cospi_12_64 - step2[6] * (tran_high_t)cospi_20_64; temp2 = step2[5] * (tran_high_t)cospi_20_64 + step2[6] * (tran_high_t)cospi_12_64; step1[5] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[6] = HIGHBD_WRAPLOW(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] * (tran_high_t)cospi_4_64 + step2[30] * (tran_high_t)cospi_28_64; temp2 = step2[17] * (tran_high_t)cospi_28_64 + step2[30] * (tran_high_t)cospi_4_64; step1[17] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[30] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = -step2[18] * (tran_high_t)cospi_28_64 - step2[29] * (tran_high_t)cospi_4_64; temp2 = -step2[18] * (tran_high_t)cospi_4_64 + step2[29] * (tran_high_t)cospi_28_64; step1[18] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[29] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); step1[19] = step2[19]; step1[20] = step2[20]; temp1 = -step2[21] * (tran_high_t)cospi_20_64 + step2[26] * (tran_high_t)cospi_12_64; temp2 = step2[21] * (tran_high_t)cospi_12_64 + step2[26] * (tran_high_t)cospi_20_64; step1[21] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[26] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = -step2[22] * (tran_high_t)cospi_12_64 - step2[25] * (tran_high_t)cospi_20_64; temp2 = -step2[22] * (tran_high_t)cospi_20_64 + step2[25] * (tran_high_t)cospi_12_64; step1[22] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[25] = HIGHBD_WRAPLOW(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]) * (tran_high_t)cospi_16_64; temp2 = (step1[0] - step1[1]) * (tran_high_t)cospi_16_64; step2[0] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[1] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = step1[2] * (tran_high_t)cospi_24_64 - step1[3] * (tran_high_t)cospi_8_64; temp2 = step1[2] * (tran_high_t)cospi_8_64 + step1[3] * (tran_high_t)cospi_24_64; step2[2] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[3] = HIGHBD_WRAPLOW(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] * (tran_high_t)cospi_8_64 + step1[14] * (tran_high_t)cospi_24_64; temp2 = step1[9] * (tran_high_t)cospi_24_64 + step1[14] * (tran_high_t)cospi_8_64; step2[9] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[14] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = -step1[10] * (tran_high_t)cospi_24_64 - step1[13] * (tran_high_t)cospi_8_64; temp2 = -step1[10] * (tran_high_t)cospi_8_64 + step1[13] * (tran_high_t)cospi_24_64; step2[10] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[13] = HIGHBD_WRAPLOW(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]) * (tran_high_t)cospi_16_64; temp2 = (step2[5] + step2[6]) * (tran_high_t)cospi_16_64; step1[5] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[6] = HIGHBD_WRAPLOW(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] * (tran_high_t)cospi_8_64 + step2[29] * (tran_high_t)cospi_24_64; temp2 = step2[18] * (tran_high_t)cospi_24_64 + step2[29] * (tran_high_t)cospi_8_64; step1[18] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[29] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = -step2[19] * (tran_high_t)cospi_8_64 + step2[28] * (tran_high_t)cospi_24_64; temp2 = step2[19] * (tran_high_t)cospi_24_64 + step2[28] * (tran_high_t)cospi_8_64; step1[19] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[28] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = -step2[20] * (tran_high_t)cospi_24_64 - step2[27] * (tran_high_t)cospi_8_64; temp2 = -step2[20] * (tran_high_t)cospi_8_64 + step2[27] * (tran_high_t)cospi_24_64; step1[20] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[27] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = -step2[21] * (tran_high_t)cospi_24_64 - step2[26] * (tran_high_t)cospi_8_64; temp2 = -step2[21] * (tran_high_t)cospi_8_64 + step2[26] * (tran_high_t)cospi_24_64; step1[21] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[26] = HIGHBD_WRAPLOW(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]) * (tran_high_t)cospi_16_64; temp2 = (step1[10] + step1[13]) * (tran_high_t)cospi_16_64; step2[10] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[13] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = (-step1[11] + step1[12]) * (tran_high_t)cospi_16_64; temp2 = (step1[11] + step1[12]) * (tran_high_t)cospi_16_64; step2[11] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step2[12] = HIGHBD_WRAPLOW(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]) * (tran_high_t)cospi_16_64; temp2 = (step2[20] + step2[27]) * (tran_high_t)cospi_16_64; step1[20] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[27] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = (-step2[21] + step2[26]) * (tran_high_t)cospi_16_64; temp2 = (step2[21] + step2[26]) * (tran_high_t)cospi_16_64; step1[21] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[26] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = (-step2[22] + step2[25]) * (tran_high_t)cospi_16_64; temp2 = (step2[22] + step2[25]) * (tran_high_t)cospi_16_64; step1[22] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[25] = HIGHBD_WRAPLOW(dct_const_round_shift(temp2), bd); temp1 = (-step2[23] + step2[24]) * (tran_high_t)cospi_16_64; temp2 = (step2[23] + step2[24]) * (tran_high_t)cospi_16_64; step1[23] = HIGHBD_WRAPLOW(dct_const_round_shift(temp1), bd); step1[24] = HIGHBD_WRAPLOW(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, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[32 * 32]; tran_low_t *outptr = out; tran_low_t temp_in[32], temp_out[32]; // Rows for (i = 0; i < 32; ++i) { tran_low_t zero_coeff = 0; for (j = 0; j < 32; ++j) zero_coeff |= input[j]; if (zero_coeff) 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_135_add_c(const tran_low_t *input, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[32 * 32] = { 0 }; tran_low_t *outptr = out; tran_low_t temp_in[32], temp_out[32]; // Rows // Only upper-left 16x16 has non-zero coeff for (i = 0; i < 16; ++i) { highbd_idct32_c(input, outptr, bd); input += 32; outptr += 32; } // Columns for (i = 0; i < 32; ++i) { uint16_t *destT = dest; 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) { destT[i] = highbd_clip_pixel_add(destT[i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd); destT += stride; } } } void vpx_highbd_idct32x32_34_add_c(const tran_low_t *input, uint16_t *dest, int stride, int bd) { int i, j; tran_low_t out[32 * 32] = { 0 }; tran_low_t *outptr = out; tran_low_t temp_in[32], temp_out[32]; // 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, uint16_t *dest, int stride, int bd) { int i, j; int a1; tran_low_t out = HIGHBD_WRAPLOW( dct_const_round_shift(input[0] * (tran_high_t)cospi_16_64), bd); out = HIGHBD_WRAPLOW(dct_const_round_shift(out * (tran_high_t)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