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-rw-r--r--vp10/encoder/dct.c1300
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diff --git a/vp10/encoder/dct.c b/vp10/encoder/dct.c
deleted file mode 100644
index c61babefd..000000000
--- a/vp10/encoder/dct.c
+++ /dev/null
@@ -1,1300 +0,0 @@
-/*
- * Copyright (c) 2010 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 <assert.h>
-#include <math.h>
-
-#include "./vp10_rtcd.h"
-#include "./vpx_config.h"
-#include "./vpx_dsp_rtcd.h"
-
-#include "vp10/common/blockd.h"
-#include "vp10/common/idct.h"
-#include "vpx_dsp/fwd_txfm.h"
-#include "vpx_ports/mem.h"
-
-static INLINE void range_check(const tran_low_t *input, const int size,
- const int bit) {
-#if CONFIG_COEFFICIENT_RANGE_CHECKING
- int i;
- for (i = 0; i < size; ++i) {
- assert(abs(input[i]) < (1 << bit));
- }
-#else
- (void)input;
- (void)size;
- (void)bit;
-#endif
-}
-
-static void fdct4(const tran_low_t *input, tran_low_t *output) {
- tran_high_t temp;
- tran_low_t step[4];
-
- // stage 0
- range_check(input, 4, 11);
-
- // stage 1
- output[0] = input[0] + input[3];
- output[1] = input[1] + input[2];
- output[2] = input[1] - input[2];
- output[3] = input[0] - input[3];
-
- range_check(output, 4, 12);
-
- // stage 2
- temp = output[0] * cospi_16_64 + output[1] * cospi_16_64;
- step[0] = (tran_low_t)fdct_round_shift(temp);
- temp = output[1] * -cospi_16_64 + output[0] * cospi_16_64;
- step[1] = (tran_low_t)fdct_round_shift(temp);
- temp = output[2] * cospi_24_64 + output[3] * cospi_8_64;
- step[2] = (tran_low_t)fdct_round_shift(temp);
- temp = output[3] * cospi_24_64 + output[2] * -cospi_8_64;
- step[3] = (tran_low_t)fdct_round_shift(temp);
-
- range_check(step, 4, 13);
-
- // stage 3
- output[0] = step[0];
- output[1] = step[2];
- output[2] = step[1];
- output[3] = step[3];
-
- range_check(output, 4, 13);
-}
-
-static void fdct8(const tran_low_t *input, tran_low_t *output) {
- tran_high_t temp;
- tran_low_t step[8];
-
- // stage 0
- range_check(input, 8, 12);
-
- // stage 1
- output[0] = input[0] + input[7];
- output[1] = input[1] + input[6];
- output[2] = input[2] + input[5];
- output[3] = input[3] + input[4];
- output[4] = input[3] - input[4];
- output[5] = input[2] - input[5];
- output[6] = input[1] - input[6];
- output[7] = input[0] - input[7];
-
- range_check(output, 8, 13);
-
- // stage 2
- step[0] = output[0] + output[3];
- step[1] = output[1] + output[2];
- step[2] = output[1] - output[2];
- step[3] = output[0] - output[3];
- step[4] = output[4];
- temp = output[5] * -cospi_16_64 + output[6] * cospi_16_64;
- step[5] = (tran_low_t)fdct_round_shift(temp);
- temp = output[6] * cospi_16_64 + output[5] * cospi_16_64;
- step[6] = (tran_low_t)fdct_round_shift(temp);
- step[7] = output[7];
-
- range_check(step, 8, 14);
-
- // stage 3
- temp = step[0] * cospi_16_64 + step[1] * cospi_16_64;
- output[0] = (tran_low_t)fdct_round_shift(temp);
- temp = step[1] * -cospi_16_64 + step[0] * cospi_16_64;
- output[1] = (tran_low_t)fdct_round_shift(temp);
- temp = step[2] * cospi_24_64 + step[3] * cospi_8_64;
- output[2] = (tran_low_t)fdct_round_shift(temp);
- temp = step[3] * cospi_24_64 + step[2] * -cospi_8_64;
- output[3] = (tran_low_t)fdct_round_shift(temp);
- output[4] = step[4] + step[5];
- output[5] = step[4] - step[5];
- output[6] = step[7] - step[6];
- output[7] = step[7] + step[6];
-
- range_check(output, 8, 14);
-
- // stage 4
- step[0] = output[0];
- step[1] = output[1];
- step[2] = output[2];
- step[3] = output[3];
- temp = output[4] * cospi_28_64 + output[7] * cospi_4_64;
- step[4] = (tran_low_t)fdct_round_shift(temp);
- temp = output[5] * cospi_12_64 + output[6] * cospi_20_64;
- step[5] = (tran_low_t)fdct_round_shift(temp);
- temp = output[6] * cospi_12_64 + output[5] * -cospi_20_64;
- step[6] = (tran_low_t)fdct_round_shift(temp);
- temp = output[7] * cospi_28_64 + output[4] * -cospi_4_64;
- step[7] = (tran_low_t)fdct_round_shift(temp);
-
- range_check(step, 8, 14);
-
- // stage 5
- output[0] = step[0];
- output[1] = step[4];
- output[2] = step[2];
- output[3] = step[6];
- output[4] = step[1];
- output[5] = step[5];
- output[6] = step[3];
- output[7] = step[7];
-
- range_check(output, 8, 14);
-}
-
-static void fdct16(const tran_low_t *input, tran_low_t *output) {
- tran_high_t temp;
- tran_low_t step[16];
-
- // stage 0
- range_check(input, 16, 13);
-
- // stage 1
- output[0] = input[0] + input[15];
- output[1] = input[1] + input[14];
- output[2] = input[2] + input[13];
- output[3] = input[3] + input[12];
- output[4] = input[4] + input[11];
- output[5] = input[5] + input[10];
- output[6] = input[6] + input[9];
- output[7] = input[7] + input[8];
- output[8] = input[7] - input[8];
- output[9] = input[6] - input[9];
- output[10] = input[5] - input[10];
- output[11] = input[4] - input[11];
- output[12] = input[3] - input[12];
- output[13] = input[2] - input[13];
- output[14] = input[1] - input[14];
- output[15] = input[0] - input[15];
-
- range_check(output, 16, 14);
-
- // stage 2
- step[0] = output[0] + output[7];
- step[1] = output[1] + output[6];
- step[2] = output[2] + output[5];
- step[3] = output[3] + output[4];
- step[4] = output[3] - output[4];
- step[5] = output[2] - output[5];
- step[6] = output[1] - output[6];
- step[7] = output[0] - output[7];
- step[8] = output[8];
- step[9] = output[9];
- temp = output[10] * -cospi_16_64 + output[13] * cospi_16_64;
- step[10] = (tran_low_t)fdct_round_shift(temp);
- temp = output[11] * -cospi_16_64 + output[12] * cospi_16_64;
- step[11] = (tran_low_t)fdct_round_shift(temp);
- temp = output[12] * cospi_16_64 + output[11] * cospi_16_64;
- step[12] = (tran_low_t)fdct_round_shift(temp);
- temp = output[13] * cospi_16_64 + output[10] * cospi_16_64;
- step[13] = (tran_low_t)fdct_round_shift(temp);
- step[14] = output[14];
- step[15] = output[15];
-
- range_check(step, 16, 15);
-
- // stage 3
- output[0] = step[0] + step[3];
- output[1] = step[1] + step[2];
- output[2] = step[1] - step[2];
- output[3] = step[0] - step[3];
- output[4] = step[4];
- temp = step[5] * -cospi_16_64 + step[6] * cospi_16_64;
- output[5] = (tran_low_t)fdct_round_shift(temp);
- temp = step[6] * cospi_16_64 + step[5] * cospi_16_64;
- output[6] = (tran_low_t)fdct_round_shift(temp);
- output[7] = step[7];
- output[8] = step[8] + step[11];
- output[9] = step[9] + step[10];
- output[10] = step[9] - step[10];
- output[11] = step[8] - step[11];
- output[12] = step[15] - step[12];
- output[13] = step[14] - step[13];
- output[14] = step[14] + step[13];
- output[15] = step[15] + step[12];
-
- range_check(output, 16, 16);
-
- // stage 4
- temp = output[0] * cospi_16_64 + output[1] * cospi_16_64;
- step[0] = (tran_low_t)fdct_round_shift(temp);
- temp = output[1] * -cospi_16_64 + output[0] * cospi_16_64;
- step[1] = (tran_low_t)fdct_round_shift(temp);
- temp = output[2] * cospi_24_64 + output[3] * cospi_8_64;
- step[2] = (tran_low_t)fdct_round_shift(temp);
- temp = output[3] * cospi_24_64 + output[2] * -cospi_8_64;
- step[3] = (tran_low_t)fdct_round_shift(temp);
- step[4] = output[4] + output[5];
- step[5] = output[4] - output[5];
- step[6] = output[7] - output[6];
- step[7] = output[7] + output[6];
- step[8] = output[8];
- temp = output[9] * -cospi_8_64 + output[14] * cospi_24_64;
- step[9] = (tran_low_t)fdct_round_shift(temp);
- temp = output[10] * -cospi_24_64 + output[13] * -cospi_8_64;
- step[10] = (tran_low_t)fdct_round_shift(temp);
- step[11] = output[11];
- step[12] = output[12];
- temp = output[13] * cospi_24_64 + output[10] * -cospi_8_64;
- step[13] = (tran_low_t)fdct_round_shift(temp);
- temp = output[14] * cospi_8_64 + output[9] * cospi_24_64;
- step[14] = (tran_low_t)fdct_round_shift(temp);
- step[15] = output[15];
-
- range_check(step, 16, 16);
-
- // stage 5
- output[0] = step[0];
- output[1] = step[1];
- output[2] = step[2];
- output[3] = step[3];
- temp = step[4] * cospi_28_64 + step[7] * cospi_4_64;
- output[4] = (tran_low_t)fdct_round_shift(temp);
- temp = step[5] * cospi_12_64 + step[6] * cospi_20_64;
- output[5] = (tran_low_t)fdct_round_shift(temp);
- temp = step[6] * cospi_12_64 + step[5] * -cospi_20_64;
- output[6] = (tran_low_t)fdct_round_shift(temp);
- temp = step[7] * cospi_28_64 + step[4] * -cospi_4_64;
- output[7] = (tran_low_t)fdct_round_shift(temp);
- output[8] = step[8] + step[9];
- output[9] = step[8] - step[9];
- output[10] = step[11] - step[10];
- output[11] = step[11] + step[10];
- output[12] = step[12] + step[13];
- output[13] = step[12] - step[13];
- output[14] = step[15] - step[14];
- output[15] = step[15] + step[14];
-
- range_check(output, 16, 16);
-
- // stage 6
- step[0] = output[0];
- step[1] = output[1];
- step[2] = output[2];
- step[3] = output[3];
- step[4] = output[4];
- step[5] = output[5];
- step[6] = output[6];
- step[7] = output[7];
- temp = output[8] * cospi_30_64 + output[15] * cospi_2_64;
- step[8] = (tran_low_t)fdct_round_shift(temp);
- temp = output[9] * cospi_14_64 + output[14] * cospi_18_64;
- step[9] = (tran_low_t)fdct_round_shift(temp);
- temp = output[10] * cospi_22_64 + output[13] * cospi_10_64;
- step[10] = (tran_low_t)fdct_round_shift(temp);
- temp = output[11] * cospi_6_64 + output[12] * cospi_26_64;
- step[11] = (tran_low_t)fdct_round_shift(temp);
- temp = output[12] * cospi_6_64 + output[11] * -cospi_26_64;
- step[12] = (tran_low_t)fdct_round_shift(temp);
- temp = output[13] * cospi_22_64 + output[10] * -cospi_10_64;
- step[13] = (tran_low_t)fdct_round_shift(temp);
- temp = output[14] * cospi_14_64 + output[9] * -cospi_18_64;
- step[14] = (tran_low_t)fdct_round_shift(temp);
- temp = output[15] * cospi_30_64 + output[8] * -cospi_2_64;
- step[15] = (tran_low_t)fdct_round_shift(temp);
-
- range_check(step, 16, 16);
-
- // stage 7
- output[0] = step[0];
- output[1] = step[8];
- output[2] = step[4];
- output[3] = step[12];
- output[4] = step[2];
- output[5] = step[10];
- output[6] = step[6];
- output[7] = step[14];
- output[8] = step[1];
- output[9] = step[9];
- output[10] = step[5];
- output[11] = step[13];
- output[12] = step[3];
- output[13] = step[11];
- output[14] = step[7];
- output[15] = step[15];
-
- range_check(output, 16, 16);
-}
-
-/* #TODO(angiebird): Unify this with vp10_fwd_txfm.c: vp10_fdct32
-static void fdct32(const tran_low_t *input, tran_low_t *output) {
- tran_high_t temp;
- tran_low_t step[32];
-
- // stage 0
- range_check(input, 32, 14);
-
- // stage 1
- output[0] = input[0] + input[31];
- output[1] = input[1] + input[30];
- output[2] = input[2] + input[29];
- output[3] = input[3] + input[28];
- output[4] = input[4] + input[27];
- output[5] = input[5] + input[26];
- output[6] = input[6] + input[25];
- output[7] = input[7] + input[24];
- output[8] = input[8] + input[23];
- output[9] = input[9] + input[22];
- output[10] = input[10] + input[21];
- output[11] = input[11] + input[20];
- output[12] = input[12] + input[19];
- output[13] = input[13] + input[18];
- output[14] = input[14] + input[17];
- output[15] = input[15] + input[16];
- output[16] = input[15] - input[16];
- output[17] = input[14] - input[17];
- output[18] = input[13] - input[18];
- output[19] = input[12] - input[19];
- output[20] = input[11] - input[20];
- output[21] = input[10] - input[21];
- output[22] = input[9] - input[22];
- output[23] = input[8] - input[23];
- output[24] = input[7] - input[24];
- output[25] = input[6] - input[25];
- output[26] = input[5] - input[26];
- output[27] = input[4] - input[27];
- output[28] = input[3] - input[28];
- output[29] = input[2] - input[29];
- output[30] = input[1] - input[30];
- output[31] = input[0] - input[31];
-
- range_check(output, 32, 15);
-
- // stage 2
- step[0] = output[0] + output[15];
- step[1] = output[1] + output[14];
- step[2] = output[2] + output[13];
- step[3] = output[3] + output[12];
- step[4] = output[4] + output[11];
- step[5] = output[5] + output[10];
- step[6] = output[6] + output[9];
- step[7] = output[7] + output[8];
- step[8] = output[7] - output[8];
- step[9] = output[6] - output[9];
- step[10] = output[5] - output[10];
- step[11] = output[4] - output[11];
- step[12] = output[3] - output[12];
- step[13] = output[2] - output[13];
- step[14] = output[1] - output[14];
- step[15] = output[0] - output[15];
- step[16] = output[16];
- step[17] = output[17];
- step[18] = output[18];
- step[19] = output[19];
- temp = output[20] * -cospi_16_64 + output[27] * cospi_16_64;
- step[20] = (tran_low_t)fdct_round_shift(temp);
- temp = output[21] * -cospi_16_64 + output[26] * cospi_16_64;
- step[21] = (tran_low_t)fdct_round_shift(temp);
- temp = output[22] * -cospi_16_64 + output[25] * cospi_16_64;
- step[22] = (tran_low_t)fdct_round_shift(temp);
- temp = output[23] * -cospi_16_64 + output[24] * cospi_16_64;
- step[23] = (tran_low_t)fdct_round_shift(temp);
- temp = output[24] * cospi_16_64 + output[23] * cospi_16_64;
- step[24] = (tran_low_t)fdct_round_shift(temp);
- temp = output[25] * cospi_16_64 + output[22] * cospi_16_64;
- step[25] = (tran_low_t)fdct_round_shift(temp);
- temp = output[26] * cospi_16_64 + output[21] * cospi_16_64;
- step[26] = (tran_low_t)fdct_round_shift(temp);
- temp = output[27] * cospi_16_64 + output[20] * cospi_16_64;
- step[27] = (tran_low_t)fdct_round_shift(temp);
- step[28] = output[28];
- step[29] = output[29];
- step[30] = output[30];
- step[31] = output[31];
-
- range_check(step, 32, 16);
-
- // stage 3
- output[0] = step[0] + step[7];
- output[1] = step[1] + step[6];
- output[2] = step[2] + step[5];
- output[3] = step[3] + step[4];
- output[4] = step[3] - step[4];
- output[5] = step[2] - step[5];
- output[6] = step[1] - step[6];
- output[7] = step[0] - step[7];
- output[8] = step[8];
- output[9] = step[9];
- temp = step[10] * -cospi_16_64 + step[13] * cospi_16_64;
- output[10] = (tran_low_t)fdct_round_shift(temp);
- temp = step[11] * -cospi_16_64 + step[12] * cospi_16_64;
- output[11] = (tran_low_t)fdct_round_shift(temp);
- temp = step[12] * cospi_16_64 + step[11] * cospi_16_64;
- output[12] = (tran_low_t)fdct_round_shift(temp);
- temp = step[13] * cospi_16_64 + step[10] * cospi_16_64;
- output[13] = (tran_low_t)fdct_round_shift(temp);
- output[14] = step[14];
- output[15] = step[15];
- output[16] = step[16] + step[23];
- output[17] = step[17] + step[22];
- output[18] = step[18] + step[21];
- output[19] = step[19] + step[20];
- output[20] = step[19] - step[20];
- output[21] = step[18] - step[21];
- output[22] = step[17] - step[22];
- output[23] = step[16] - step[23];
- output[24] = step[31] - step[24];
- output[25] = step[30] - step[25];
- output[26] = step[29] - step[26];
- output[27] = step[28] - step[27];
- output[28] = step[28] + step[27];
- output[29] = step[29] + step[26];
- output[30] = step[30] + step[25];
- output[31] = step[31] + step[24];
-
- range_check(output, 32, 17);
-
- // stage 4
- step[0] = output[0] + output[3];
- step[1] = output[1] + output[2];
- step[2] = output[1] - output[2];
- step[3] = output[0] - output[3];
- step[4] = output[4];
- temp = output[5] * -cospi_16_64 + output[6] * cospi_16_64;
- step[5] = (tran_low_t)fdct_round_shift(temp);
- temp = output[6] * cospi_16_64 + output[5] * cospi_16_64;
- step[6] = (tran_low_t)fdct_round_shift(temp);
- step[7] = output[7];
- step[8] = output[8] + output[11];
- step[9] = output[9] + output[10];
- step[10] = output[9] - output[10];
- step[11] = output[8] - output[11];
- step[12] = output[15] - output[12];
- step[13] = output[14] - output[13];
- step[14] = output[14] + output[13];
- step[15] = output[15] + output[12];
- step[16] = output[16];
- step[17] = output[17];
- temp = output[18] * -cospi_8_64 + output[29] * cospi_24_64;
- step[18] = (tran_low_t)fdct_round_shift(temp);
- temp = output[19] * -cospi_8_64 + output[28] * cospi_24_64;
- step[19] = (tran_low_t)fdct_round_shift(temp);
- temp = output[20] * -cospi_24_64 + output[27] * -cospi_8_64;
- step[20] = (tran_low_t)fdct_round_shift(temp);
- temp = output[21] * -cospi_24_64 + output[26] * -cospi_8_64;
- step[21] = (tran_low_t)fdct_round_shift(temp);
- step[22] = output[22];
- step[23] = output[23];
- step[24] = output[24];
- step[25] = output[25];
- temp = output[26] * cospi_24_64 + output[21] * -cospi_8_64;
- step[26] = (tran_low_t)fdct_round_shift(temp);
- temp = output[27] * cospi_24_64 + output[20] * -cospi_8_64;
- step[27] = (tran_low_t)fdct_round_shift(temp);
- temp = output[28] * cospi_8_64 + output[19] * cospi_24_64;
- step[28] = (tran_low_t)fdct_round_shift(temp);
- temp = output[29] * cospi_8_64 + output[18] * cospi_24_64;
- step[29] = (tran_low_t)fdct_round_shift(temp);
- step[30] = output[30];
- step[31] = output[31];
-
- range_check(step, 32, 18);
-
- // stage 5
- temp = step[0] * cospi_16_64 + step[1] * cospi_16_64;
- output[0] = (tran_low_t)fdct_round_shift(temp);
- temp = step[1] * -cospi_16_64 + step[0] * cospi_16_64;
- output[1] = (tran_low_t)fdct_round_shift(temp);
- temp = step[2] * cospi_24_64 + step[3] * cospi_8_64;
- output[2] = (tran_low_t)fdct_round_shift(temp);
- temp = step[3] * cospi_24_64 + step[2] * -cospi_8_64;
- output[3] = (tran_low_t)fdct_round_shift(temp);
- output[4] = step[4] + step[5];
- output[5] = step[4] - step[5];
- output[6] = step[7] - step[6];
- output[7] = step[7] + step[6];
- output[8] = step[8];
- temp = step[9] * -cospi_8_64 + step[14] * cospi_24_64;
- output[9] = (tran_low_t)fdct_round_shift(temp);
- temp = step[10] * -cospi_24_64 + step[13] * -cospi_8_64;
- output[10] = (tran_low_t)fdct_round_shift(temp);
- output[11] = step[11];
- output[12] = step[12];
- temp = step[13] * cospi_24_64 + step[10] * -cospi_8_64;
- output[13] = (tran_low_t)fdct_round_shift(temp);
- temp = step[14] * cospi_8_64 + step[9] * cospi_24_64;
- output[14] = (tran_low_t)fdct_round_shift(temp);
- output[15] = step[15];
- output[16] = step[16] + step[19];
- output[17] = step[17] + step[18];
- output[18] = step[17] - step[18];
- output[19] = step[16] - step[19];
- output[20] = step[23] - step[20];
- output[21] = step[22] - step[21];
- output[22] = step[22] + step[21];
- output[23] = step[23] + step[20];
- output[24] = step[24] + step[27];
- output[25] = step[25] + step[26];
- output[26] = step[25] - step[26];
- output[27] = step[24] - step[27];
- output[28] = step[31] - step[28];
- output[29] = step[30] - step[29];
- output[30] = step[30] + step[29];
- output[31] = step[31] + step[28];
-
- range_check(output, 32, 18);
-
- // stage 6
- step[0] = output[0];
- step[1] = output[1];
- step[2] = output[2];
- step[3] = output[3];
- temp = output[4] * cospi_28_64 + output[7] * cospi_4_64;
- step[4] = (tran_low_t)fdct_round_shift(temp);
- temp = output[5] * cospi_12_64 + output[6] * cospi_20_64;
- step[5] = (tran_low_t)fdct_round_shift(temp);
- temp = output[6] * cospi_12_64 + output[5] * -cospi_20_64;
- step[6] = (tran_low_t)fdct_round_shift(temp);
- temp = output[7] * cospi_28_64 + output[4] * -cospi_4_64;
- step[7] = (tran_low_t)fdct_round_shift(temp);
- step[8] = output[8] + output[9];
- step[9] = output[8] - output[9];
- step[10] = output[11] - output[10];
- step[11] = output[11] + output[10];
- step[12] = output[12] + output[13];
- step[13] = output[12] - output[13];
- step[14] = output[15] - output[14];
- step[15] = output[15] + output[14];
- step[16] = output[16];
- temp = output[17] * -cospi_4_64 + output[30] * cospi_28_64;
- step[17] = (tran_low_t)fdct_round_shift(temp);
- temp = output[18] * -cospi_28_64 + output[29] * -cospi_4_64;
- step[18] = (tran_low_t)fdct_round_shift(temp);
- step[19] = output[19];
- step[20] = output[20];
- temp = output[21] * -cospi_20_64 + output[26] * cospi_12_64;
- step[21] = (tran_low_t)fdct_round_shift(temp);
- temp = output[22] * -cospi_12_64 + output[25] * -cospi_20_64;
- step[22] = (tran_low_t)fdct_round_shift(temp);
- step[23] = output[23];
- step[24] = output[24];
- temp = output[25] * cospi_12_64 + output[22] * -cospi_20_64;
- step[25] = (tran_low_t)fdct_round_shift(temp);
- temp = output[26] * cospi_20_64 + output[21] * cospi_12_64;
- step[26] = (tran_low_t)fdct_round_shift(temp);
- step[27] = output[27];
- step[28] = output[28];
- temp = output[29] * cospi_28_64 + output[18] * -cospi_4_64;
- step[29] = (tran_low_t)fdct_round_shift(temp);
- temp = output[30] * cospi_4_64 + output[17] * cospi_28_64;
- step[30] = (tran_low_t)fdct_round_shift(temp);
- step[31] = output[31];
-
- range_check(step, 32, 18);
-
- // stage 7
- output[0] = step[0];
- output[1] = step[1];
- output[2] = step[2];
- output[3] = step[3];
- output[4] = step[4];
- output[5] = step[5];
- output[6] = step[6];
- output[7] = step[7];
- temp = step[8] * cospi_30_64 + step[15] * cospi_2_64;
- output[8] = (tran_low_t)fdct_round_shift(temp);
- temp = step[9] * cospi_14_64 + step[14] * cospi_18_64;
- output[9] = (tran_low_t)fdct_round_shift(temp);
- temp = step[10] * cospi_22_64 + step[13] * cospi_10_64;
- output[10] = (tran_low_t)fdct_round_shift(temp);
- temp = step[11] * cospi_6_64 + step[12] * cospi_26_64;
- output[11] = (tran_low_t)fdct_round_shift(temp);
- temp = step[12] * cospi_6_64 + step[11] * -cospi_26_64;
- output[12] = (tran_low_t)fdct_round_shift(temp);
- temp = step[13] * cospi_22_64 + step[10] * -cospi_10_64;
- output[13] = (tran_low_t)fdct_round_shift(temp);
- temp = step[14] * cospi_14_64 + step[9] * -cospi_18_64;
- output[14] = (tran_low_t)fdct_round_shift(temp);
- temp = step[15] * cospi_30_64 + step[8] * -cospi_2_64;
- output[15] = (tran_low_t)fdct_round_shift(temp);
- output[16] = step[16] + step[17];
- output[17] = step[16] - step[17];
- output[18] = step[19] - step[18];
- output[19] = step[19] + step[18];
- output[20] = step[20] + step[21];
- output[21] = step[20] - step[21];
- output[22] = step[23] - step[22];
- output[23] = step[23] + step[22];
- output[24] = step[24] + step[25];
- output[25] = step[24] - step[25];
- output[26] = step[27] - step[26];
- output[27] = step[27] + step[26];
- output[28] = step[28] + step[29];
- output[29] = step[28] - step[29];
- output[30] = step[31] - step[30];
- output[31] = step[31] + step[30];
-
- range_check(output, 32, 18);
-
- // stage 8
- step[0] = output[0];
- step[1] = output[1];
- step[2] = output[2];
- step[3] = output[3];
- step[4] = output[4];
- step[5] = output[5];
- step[6] = output[6];
- step[7] = output[7];
- step[8] = output[8];
- step[9] = output[9];
- step[10] = output[10];
- step[11] = output[11];
- step[12] = output[12];
- step[13] = output[13];
- step[14] = output[14];
- step[15] = output[15];
- temp = output[16] * cospi_31_64 + output[31] * cospi_1_64;
- step[16] = (tran_low_t)fdct_round_shift(temp);
- temp = output[17] * cospi_15_64 + output[30] * cospi_17_64;
- step[17] = (tran_low_t)fdct_round_shift(temp);
- temp = output[18] * cospi_23_64 + output[29] * cospi_9_64;
- step[18] = (tran_low_t)fdct_round_shift(temp);
- temp = output[19] * cospi_7_64 + output[28] * cospi_25_64;
- step[19] = (tran_low_t)fdct_round_shift(temp);
- temp = output[20] * cospi_27_64 + output[27] * cospi_5_64;
- step[20] = (tran_low_t)fdct_round_shift(temp);
- temp = output[21] * cospi_11_64 + output[26] * cospi_21_64;
- step[21] = (tran_low_t)fdct_round_shift(temp);
- temp = output[22] * cospi_19_64 + output[25] * cospi_13_64;
- step[22] = (tran_low_t)fdct_round_shift(temp);
- temp = output[23] * cospi_3_64 + output[24] * cospi_29_64;
- step[23] = (tran_low_t)fdct_round_shift(temp);
- temp = output[24] * cospi_3_64 + output[23] * -cospi_29_64;
- step[24] = (tran_low_t)fdct_round_shift(temp);
- temp = output[25] * cospi_19_64 + output[22] * -cospi_13_64;
- step[25] = (tran_low_t)fdct_round_shift(temp);
- temp = output[26] * cospi_11_64 + output[21] * -cospi_21_64;
- step[26] = (tran_low_t)fdct_round_shift(temp);
- temp = output[27] * cospi_27_64 + output[20] * -cospi_5_64;
- step[27] = (tran_low_t)fdct_round_shift(temp);
- temp = output[28] * cospi_7_64 + output[19] * -cospi_25_64;
- step[28] = (tran_low_t)fdct_round_shift(temp);
- temp = output[29] * cospi_23_64 + output[18] * -cospi_9_64;
- step[29] = (tran_low_t)fdct_round_shift(temp);
- temp = output[30] * cospi_15_64 + output[17] * -cospi_17_64;
- step[30] = (tran_low_t)fdct_round_shift(temp);
- temp = output[31] * cospi_31_64 + output[16] * -cospi_1_64;
- step[31] = (tran_low_t)fdct_round_shift(temp);
-
- range_check(step, 32, 18);
-
- // stage 9
- output[0] = step[0];
- output[1] = step[16];
- output[2] = step[8];
- output[3] = step[24];
- output[4] = step[4];
- output[5] = step[20];
- output[6] = step[12];
- output[7] = step[28];
- output[8] = step[2];
- output[9] = step[18];
- output[10] = step[10];
- output[11] = step[26];
- output[12] = step[6];
- output[13] = step[22];
- output[14] = step[14];
- output[15] = step[30];
- output[16] = step[1];
- output[17] = step[17];
- output[18] = step[9];
- output[19] = step[25];
- output[20] = step[5];
- output[21] = step[21];
- output[22] = step[13];
- output[23] = step[29];
- output[24] = step[3];
- output[25] = step[19];
- output[26] = step[11];
- output[27] = step[27];
- output[28] = step[7];
- output[29] = step[23];
- output[30] = step[15];
- output[31] = step[31];
-
- range_check(output, 32, 18);
-}
-*/
-
-static void fadst4(const tran_low_t *input, tran_low_t *output) {
- tran_high_t x0, x1, x2, x3;
- tran_high_t s0, s1, s2, s3, s4, s5, s6, s7;
-
- x0 = input[0];
- x1 = input[1];
- x2 = input[2];
- 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_4_9 * x0;
- s2 = sinpi_2_9 * x1;
- s3 = sinpi_1_9 * x1;
- s4 = sinpi_3_9 * x2;
- s5 = sinpi_4_9 * x3;
- s6 = sinpi_2_9 * x3;
- s7 = x0 + x1 - x3;
-
- x0 = s0 + s2 + s5;
- x1 = sinpi_3_9 * s7;
- x2 = s1 - s3 + s6;
- x3 = s4;
-
- s0 = x0 + x3;
- s1 = x1;
- s2 = x2 - x3;
- s3 = x2 - x0 + x3;
-
- // 1-D transform scaling factor is sqrt(2).
- output[0] = (tran_low_t)fdct_round_shift(s0);
- output[1] = (tran_low_t)fdct_round_shift(s1);
- output[2] = (tran_low_t)fdct_round_shift(s2);
- output[3] = (tran_low_t)fdct_round_shift(s3);
-}
-
-static void fadst8(const tran_low_t *input, tran_low_t *output) {
- tran_high_t 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];
-
- // 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 = fdct_round_shift(s0 + s4);
- x1 = fdct_round_shift(s1 + s5);
- x2 = fdct_round_shift(s2 + s6);
- x3 = fdct_round_shift(s3 + s7);
- x4 = fdct_round_shift(s0 - s4);
- x5 = fdct_round_shift(s1 - s5);
- x6 = fdct_round_shift(s2 - s6);
- x7 = fdct_round_shift(s3 - s7);
-
- // 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 = s0 + s2;
- x1 = s1 + s3;
- x2 = s0 - s2;
- x3 = s1 - s3;
- x4 = fdct_round_shift(s4 + s6);
- x5 = fdct_round_shift(s5 + s7);
- x6 = fdct_round_shift(s4 - s6);
- x7 = fdct_round_shift(s5 - s7);
-
- // 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 = fdct_round_shift(s2);
- x3 = fdct_round_shift(s3);
- x6 = fdct_round_shift(s6);
- x7 = fdct_round_shift(s7);
-
- output[0] = (tran_low_t)x0;
- output[1] = (tran_low_t)-x4;
- output[2] = (tran_low_t)x6;
- output[3] = (tran_low_t)-x2;
- output[4] = (tran_low_t)x3;
- output[5] = (tran_low_t)-x7;
- output[6] = (tran_low_t)x5;
- output[7] = (tran_low_t)-x1;
-}
-
-static void fadst16(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];
-
- // 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 = fdct_round_shift(s0 + s8);
- x1 = fdct_round_shift(s1 + s9);
- x2 = fdct_round_shift(s2 + s10);
- x3 = fdct_round_shift(s3 + s11);
- x4 = fdct_round_shift(s4 + s12);
- x5 = fdct_round_shift(s5 + s13);
- x6 = fdct_round_shift(s6 + s14);
- x7 = fdct_round_shift(s7 + s15);
- x8 = fdct_round_shift(s0 - s8);
- x9 = fdct_round_shift(s1 - s9);
- x10 = fdct_round_shift(s2 - s10);
- x11 = fdct_round_shift(s3 - s11);
- x12 = fdct_round_shift(s4 - s12);
- x13 = fdct_round_shift(s5 - s13);
- x14 = fdct_round_shift(s6 - s14);
- x15 = fdct_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 = s0 + s4;
- x1 = s1 + s5;
- x2 = s2 + s6;
- x3 = s3 + s7;
- x4 = s0 - s4;
- x5 = s1 - s5;
- x6 = s2 - s6;
- x7 = s3 - s7;
- x8 = fdct_round_shift(s8 + s12);
- x9 = fdct_round_shift(s9 + s13);
- x10 = fdct_round_shift(s10 + s14);
- x11 = fdct_round_shift(s11 + s15);
- x12 = fdct_round_shift(s8 - s12);
- x13 = fdct_round_shift(s9 - s13);
- x14 = fdct_round_shift(s10 - s14);
- x15 = fdct_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 = s0 + s2;
- x1 = s1 + s3;
- x2 = s0 - s2;
- x3 = s1 - s3;
- x4 = fdct_round_shift(s4 + s6);
- x5 = fdct_round_shift(s5 + s7);
- x6 = fdct_round_shift(s4 - s6);
- x7 = fdct_round_shift(s5 - s7);
- x8 = s8 + s10;
- x9 = s9 + s11;
- x10 = s8 - s10;
- x11 = s9 - s11;
- x12 = fdct_round_shift(s12 + s14);
- x13 = fdct_round_shift(s13 + s15);
- x14 = fdct_round_shift(s12 - s14);
- x15 = fdct_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 = fdct_round_shift(s2);
- x3 = fdct_round_shift(s3);
- x6 = fdct_round_shift(s6);
- x7 = fdct_round_shift(s7);
- x10 = fdct_round_shift(s10);
- x11 = fdct_round_shift(s11);
- x14 = fdct_round_shift(s14);
- x15 = fdct_round_shift(s15);
-
- output[0] = (tran_low_t)x0;
- output[1] = (tran_low_t)-x8;
- output[2] = (tran_low_t)x12;
- output[3] = (tran_low_t)-x4;
- output[4] = (tran_low_t)x6;
- output[5] = (tran_low_t)x14;
- output[6] = (tran_low_t)x10;
- output[7] = (tran_low_t)x2;
- output[8] = (tran_low_t)x3;
- output[9] = (tran_low_t)x11;
- output[10] = (tran_low_t)x15;
- output[11] = (tran_low_t)x7;
- output[12] = (tran_low_t)x5;
- output[13] = (tran_low_t)-x13;
- output[14] = (tran_low_t)x9;
- output[15] = (tran_low_t)-x1;
-}
-
-static const transform_2d FHT_4[] = {
- { fdct4, fdct4 }, // DCT_DCT = 0
- { fadst4, fdct4 }, // ADST_DCT = 1
- { fdct4, fadst4 }, // DCT_ADST = 2
- { fadst4, fadst4 } // ADST_ADST = 3
-};
-
-static const transform_2d FHT_8[] = {
- { fdct8, fdct8 }, // DCT_DCT = 0
- { fadst8, fdct8 }, // ADST_DCT = 1
- { fdct8, fadst8 }, // DCT_ADST = 2
- { fadst8, fadst8 } // ADST_ADST = 3
-};
-
-static const transform_2d FHT_16[] = {
- { fdct16, fdct16 }, // DCT_DCT = 0
- { fadst16, fdct16 }, // ADST_DCT = 1
- { fdct16, fadst16 }, // DCT_ADST = 2
- { fadst16, fadst16 } // ADST_ADST = 3
-};
-
-void vp10_fht4x4_c(const int16_t *input, tran_low_t *output,
- int stride, int tx_type) {
- if (tx_type == DCT_DCT) {
- vpx_fdct4x4_c(input, output, stride);
- } else {
- tran_low_t out[4 * 4];
- int i, j;
- tran_low_t temp_in[4], temp_out[4];
- const transform_2d ht = FHT_4[tx_type];
-
- // Columns
- for (i = 0; i < 4; ++i) {
- for (j = 0; j < 4; ++j)
- temp_in[j] = input[j * stride + i] * 16;
- if (i == 0 && temp_in[0])
- temp_in[0] += 1;
- ht.cols(temp_in, temp_out);
- for (j = 0; j < 4; ++j)
- out[j * 4 + i] = temp_out[j];
- }
-
- // Rows
- for (i = 0; i < 4; ++i) {
- for (j = 0; j < 4; ++j)
- temp_in[j] = out[j + i * 4];
- ht.rows(temp_in, temp_out);
- for (j = 0; j < 4; ++j)
- output[j + i * 4] = (temp_out[j] + 1) >> 2;
- }
- }
-}
-
-void vp10_fdct8x8_quant_c(const int16_t *input, int stride,
- tran_low_t *coeff_ptr, intptr_t n_coeffs,
- int skip_block,
- const int16_t *zbin_ptr, const int16_t *round_ptr,
- const int16_t *quant_ptr,
- const int16_t *quant_shift_ptr,
- tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
- const int16_t *dequant_ptr,
- uint16_t *eob_ptr,
- const int16_t *scan, const int16_t *iscan) {
- int eob = -1;
-
- int i, j;
- tran_low_t intermediate[64];
-
- // Transform columns
- {
- tran_low_t *output = intermediate;
- tran_high_t s0, s1, s2, s3, s4, s5, s6, s7; // canbe16
- tran_high_t t0, t1, t2, t3; // needs32
- tran_high_t x0, x1, x2, x3; // canbe16
-
- int i;
- for (i = 0; i < 8; i++) {
- // stage 1
- s0 = (input[0 * stride] + input[7 * stride]) * 4;
- s1 = (input[1 * stride] + input[6 * stride]) * 4;
- s2 = (input[2 * stride] + input[5 * stride]) * 4;
- s3 = (input[3 * stride] + input[4 * stride]) * 4;
- s4 = (input[3 * stride] - input[4 * stride]) * 4;
- s5 = (input[2 * stride] - input[5 * stride]) * 4;
- s6 = (input[1 * stride] - input[6 * stride]) * 4;
- s7 = (input[0 * stride] - input[7 * stride]) * 4;
-
- // fdct4(step, step);
- x0 = s0 + s3;
- x1 = s1 + s2;
- x2 = s1 - s2;
- x3 = s0 - s3;
- t0 = (x0 + x1) * cospi_16_64;
- t1 = (x0 - x1) * cospi_16_64;
- t2 = x2 * cospi_24_64 + x3 * cospi_8_64;
- t3 = -x2 * cospi_8_64 + x3 * cospi_24_64;
- output[0 * 8] = (tran_low_t)fdct_round_shift(t0);
- output[2 * 8] = (tran_low_t)fdct_round_shift(t2);
- output[4 * 8] = (tran_low_t)fdct_round_shift(t1);
- output[6 * 8] = (tran_low_t)fdct_round_shift(t3);
-
- // stage 2
- t0 = (s6 - s5) * cospi_16_64;
- t1 = (s6 + s5) * cospi_16_64;
- t2 = fdct_round_shift(t0);
- t3 = fdct_round_shift(t1);
-
- // stage 3
- x0 = s4 + t2;
- x1 = s4 - t2;
- x2 = s7 - t3;
- x3 = s7 + t3;
-
- // stage 4
- t0 = x0 * cospi_28_64 + x3 * cospi_4_64;
- t1 = x1 * cospi_12_64 + x2 * cospi_20_64;
- t2 = x2 * cospi_12_64 + x1 * -cospi_20_64;
- t3 = x3 * cospi_28_64 + x0 * -cospi_4_64;
- output[1 * 8] = (tran_low_t)fdct_round_shift(t0);
- output[3 * 8] = (tran_low_t)fdct_round_shift(t2);
- output[5 * 8] = (tran_low_t)fdct_round_shift(t1);
- output[7 * 8] = (tran_low_t)fdct_round_shift(t3);
- input++;
- output++;
- }
- }
-
- // Rows
- for (i = 0; i < 8; ++i) {
- fdct8(&intermediate[i * 8], &coeff_ptr[i * 8]);
- for (j = 0; j < 8; ++j)
- coeff_ptr[j + i * 8] /= 2;
- }
-
- // TODO(jingning) Decide the need of these arguments after the
- // quantization process is completed.
- (void)zbin_ptr;
- (void)quant_shift_ptr;
- (void)iscan;
-
- memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
- memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
-
- if (!skip_block) {
- // Quantization pass: All coefficients with index >= zero_flag are
- // skippable. Note: zero_flag can be zero.
- for (i = 0; i < n_coeffs; i++) {
- const int rc = scan[i];
- const int coeff = coeff_ptr[rc];
- const int coeff_sign = (coeff >> 31);
- const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
-
- int tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
- tmp = (tmp * quant_ptr[rc != 0]) >> 16;
-
- qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
- dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
-
- if (tmp)
- eob = i;
- }
- }
- *eob_ptr = eob + 1;
-}
-
-void vp10_fht8x8_c(const int16_t *input, tran_low_t *output,
- int stride, int tx_type) {
- if (tx_type == DCT_DCT) {
- vpx_fdct8x8_c(input, output, stride);
- } else {
- tran_low_t out[64];
- int i, j;
- tran_low_t temp_in[8], temp_out[8];
- const transform_2d ht = FHT_8[tx_type];
-
- // Columns
- for (i = 0; i < 8; ++i) {
- for (j = 0; j < 8; ++j)
- temp_in[j] = input[j * stride + i] * 4;
- ht.cols(temp_in, temp_out);
- for (j = 0; j < 8; ++j)
- out[j * 8 + i] = temp_out[j];
- }
-
- // Rows
- for (i = 0; i < 8; ++i) {
- for (j = 0; j < 8; ++j)
- temp_in[j] = out[j + i * 8];
- ht.rows(temp_in, temp_out);
- for (j = 0; j < 8; ++j)
- output[j + i * 8] = (temp_out[j] + (temp_out[j] < 0)) >> 1;
- }
- }
-}
-
-/* 4-point reversible, orthonormal Walsh-Hadamard in 3.5 adds, 0.5 shifts per
- pixel. */
-void vp10_fwht4x4_c(const int16_t *input, tran_low_t *output, int stride) {
- int i;
- tran_high_t a1, b1, c1, d1, e1;
- const int16_t *ip_pass0 = input;
- const tran_low_t *ip = NULL;
- tran_low_t *op = output;
-
- for (i = 0; i < 4; i++) {
- a1 = ip_pass0[0 * stride];
- b1 = ip_pass0[1 * stride];
- c1 = ip_pass0[2 * stride];
- d1 = ip_pass0[3 * stride];
-
- a1 += b1;
- d1 = d1 - c1;
- e1 = (a1 - d1) >> 1;
- b1 = e1 - b1;
- c1 = e1 - c1;
- a1 -= c1;
- d1 += b1;
- op[0] = (tran_low_t)a1;
- op[4] = (tran_low_t)c1;
- op[8] = (tran_low_t)d1;
- op[12] = (tran_low_t)b1;
-
- ip_pass0++;
- op++;
- }
- ip = output;
- op = output;
-
- for (i = 0; i < 4; i++) {
- a1 = ip[0];
- b1 = ip[1];
- c1 = ip[2];
- d1 = ip[3];
-
- a1 += b1;
- d1 -= c1;
- e1 = (a1 - d1) >> 1;
- b1 = e1 - b1;
- c1 = e1 - c1;
- a1 -= c1;
- d1 += b1;
- op[0] = (tran_low_t)(a1 * UNIT_QUANT_FACTOR);
- op[1] = (tran_low_t)(c1 * UNIT_QUANT_FACTOR);
- op[2] = (tran_low_t)(d1 * UNIT_QUANT_FACTOR);
- op[3] = (tran_low_t)(b1 * UNIT_QUANT_FACTOR);
-
- ip += 4;
- op += 4;
- }
-}
-
-void vp10_fht16x16_c(const int16_t *input, tran_low_t *output,
- int stride, int tx_type) {
- if (tx_type == DCT_DCT) {
- vpx_fdct16x16_c(input, output, stride);
- } else {
- tran_low_t out[256];
- int i, j;
- tran_low_t temp_in[16], temp_out[16];
- const transform_2d ht = FHT_16[tx_type];
-
- // Columns
- for (i = 0; i < 16; ++i) {
- for (j = 0; j < 16; ++j)
- temp_in[j] = input[j * stride + i] * 4;
- ht.cols(temp_in, temp_out);
- for (j = 0; j < 16; ++j)
- out[j * 16 + i] = (temp_out[j] + 1 + (temp_out[j] < 0)) >> 2;
- }
-
- // Rows
- for (i = 0; i < 16; ++i) {
- for (j = 0; j < 16; ++j)
- temp_in[j] = out[j + i * 16];
- ht.rows(temp_in, temp_out);
- for (j = 0; j < 16; ++j)
- output[j + i * 16] = temp_out[j];
- }
- }
-}
-
-#if CONFIG_VP9_HIGHBITDEPTH
-void vp10_highbd_fht4x4_c(const int16_t *input, tran_low_t *output,
- int stride, int tx_type) {
- vp10_fht4x4_c(input, output, stride, tx_type);
-}
-
-void vp10_highbd_fht8x8_c(const int16_t *input, tran_low_t *output,
- int stride, int tx_type) {
- vp10_fht8x8_c(input, output, stride, tx_type);
-}
-
-void vp10_highbd_fwht4x4_c(const int16_t *input, tran_low_t *output,
- int stride) {
- vp10_fwht4x4_c(input, output, stride);
-}
-
-void vp10_highbd_fht16x16_c(const int16_t *input, tran_low_t *output,
- int stride, int tx_type) {
- vp10_fht16x16_c(input, output, stride, tx_type);
-}
-#endif // CONFIG_VP9_HIGHBITDEPTH
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