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authortrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
committertrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
commit68569dee1416593955c1570d638b3d9250b33012 (patch)
treed960f017cd7eba3f125b7e8a813789ee2e076310 /third_party/aom/av1/encoder/dct.c
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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
Diffstat (limited to 'third_party/aom/av1/encoder/dct.c')
-rw-r--r--third_party/aom/av1/encoder/dct.c2228
1 files changed, 2228 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/dct.c b/third_party/aom/av1/encoder/dct.c
new file mode 100644
index 000000000..09e1b0563
--- /dev/null
+++ b/third_party/aom/av1/encoder/dct.c
@@ -0,0 +1,2228 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <math.h>
+
+#include "./aom_config.h"
+#include "./aom_dsp_rtcd.h"
+#include "./av1_rtcd.h"
+#include "aom_dsp/fwd_txfm.h"
+#include "aom_ports/mem.h"
+#include "av1/common/blockd.h"
+#include "av1/common/av1_fwd_txfm1d.h"
+#include "av1/common/av1_fwd_txfm2d_cfg.h"
+#include "av1/common/idct.h"
+
+static INLINE void range_check(const tran_low_t *input, const int size,
+ const int bit) {
+#if 0 // CONFIG_COEFFICIENT_RANGE_CHECKING
+// TODO(angiebird): the range_check is not used because the bit range
+// in fdct# is not correct. Since we are going to merge in a new version
+// of fdct# from nextgenv2, we won't fix the incorrect bit range now.
+ 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, 14);
+
+ // 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, 15);
+
+ // 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, 16);
+
+ // stage 3
+ output[0] = step[0];
+ output[1] = step[2];
+ output[2] = step[1];
+ output[3] = step[3];
+
+ range_check(output, 4, 16);
+}
+
+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, 13);
+
+ // 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, 14);
+
+ // 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, 15);
+
+ // 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, 16);
+
+ // 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, 16);
+
+ // 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, 16);
+}
+
+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);
+}
+
+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);
+}
+
+#ifndef AV1_DCT_GTEST
+
+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 = s0 + s4;
+ x1 = s1 + s5;
+ x2 = s2 + s6;
+ x3 = 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 = fdct_round_shift(s0 + s2);
+ x1 = fdct_round_shift(s1 + s3);
+ x2 = fdct_round_shift(s0 - s2);
+ x3 = fdct_round_shift(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 = s0 + s8;
+ x1 = s1 + s9;
+ x2 = s2 + s10;
+ x3 = s3 + s11;
+ x4 = s4 + s12;
+ x5 = s5 + s13;
+ x6 = s6 + s14;
+ x7 = 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 = fdct_round_shift(s0 - s4);
+ x5 = fdct_round_shift(s1 - s5);
+ x6 = fdct_round_shift(s2 - s6);
+ x7 = fdct_round_shift(s3 - s7);
+
+ x8 = s8 + s12;
+ x9 = s9 + s13;
+ x10 = s10 + s14;
+ x11 = 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 = fdct_round_shift(s0 + s2);
+ x1 = fdct_round_shift(s1 + s3);
+ x2 = fdct_round_shift(s0 - s2);
+ x3 = fdct_round_shift(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 = fdct_round_shift(s8 + s10);
+ x9 = fdct_round_shift(s9 + s11);
+ x10 = fdct_round_shift(s8 - s10);
+ x11 = fdct_round_shift(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;
+}
+
+// For use in lieu of ADST
+static void fhalfright32(const tran_low_t *input, tran_low_t *output) {
+ int i;
+ tran_low_t inputhalf[16];
+ for (i = 0; i < 16; ++i) {
+ output[16 + i] = input[i] * 4;
+ }
+ // Multiply input by sqrt(2)
+ for (i = 0; i < 16; ++i) {
+ inputhalf[i] = (tran_low_t)fdct_round_shift(input[i + 16] * Sqrt2);
+ }
+ fdct16(inputhalf, output);
+ // Note overall scaling factor is 4 times orthogonal
+}
+
+#if CONFIG_EXT_TX
+static void fidtx4(const tran_low_t *input, tran_low_t *output) {
+ int i;
+ for (i = 0; i < 4; ++i)
+ output[i] = (tran_low_t)fdct_round_shift(input[i] * Sqrt2);
+}
+
+static void fidtx8(const tran_low_t *input, tran_low_t *output) {
+ int i;
+ for (i = 0; i < 8; ++i) output[i] = input[i] * 2;
+}
+
+static void fidtx16(const tran_low_t *input, tran_low_t *output) {
+ int i;
+ for (i = 0; i < 16; ++i)
+ output[i] = (tran_low_t)fdct_round_shift(input[i] * 2 * Sqrt2);
+}
+
+static void fidtx32(const tran_low_t *input, tran_low_t *output) {
+ int i;
+ for (i = 0; i < 32; ++i) output[i] = input[i] * 4;
+}
+
+static void copy_block(const int16_t *src, int src_stride, int l, int w,
+ int16_t *dest, int dest_stride) {
+ int i;
+ for (i = 0; i < l; ++i) {
+ memcpy(dest + dest_stride * i, src + src_stride * i, w * sizeof(int16_t));
+ }
+}
+
+static void fliplr(int16_t *dest, int stride, int l, int w) {
+ int i, j;
+ for (i = 0; i < l; ++i) {
+ for (j = 0; j < w / 2; ++j) {
+ const int16_t tmp = dest[i * stride + j];
+ dest[i * stride + j] = dest[i * stride + w - 1 - j];
+ dest[i * stride + w - 1 - j] = tmp;
+ }
+ }
+}
+
+static void flipud(int16_t *dest, int stride, int l, int w) {
+ int i, j;
+ for (j = 0; j < w; ++j) {
+ for (i = 0; i < l / 2; ++i) {
+ const int16_t tmp = dest[i * stride + j];
+ dest[i * stride + j] = dest[(l - 1 - i) * stride + j];
+ dest[(l - 1 - i) * stride + j] = tmp;
+ }
+ }
+}
+
+static void fliplrud(int16_t *dest, int stride, int l, int w) {
+ int i, j;
+ for (i = 0; i < l / 2; ++i) {
+ for (j = 0; j < w; ++j) {
+ const int16_t tmp = dest[i * stride + j];
+ dest[i * stride + j] = dest[(l - 1 - i) * stride + w - 1 - j];
+ dest[(l - 1 - i) * stride + w - 1 - j] = tmp;
+ }
+ }
+}
+
+static void copy_fliplr(const int16_t *src, int src_stride, int l, int w,
+ int16_t *dest, int dest_stride) {
+ copy_block(src, src_stride, l, w, dest, dest_stride);
+ fliplr(dest, dest_stride, l, w);
+}
+
+static void copy_flipud(const int16_t *src, int src_stride, int l, int w,
+ int16_t *dest, int dest_stride) {
+ copy_block(src, src_stride, l, w, dest, dest_stride);
+ flipud(dest, dest_stride, l, w);
+}
+
+static void copy_fliplrud(const int16_t *src, int src_stride, int l, int w,
+ int16_t *dest, int dest_stride) {
+ copy_block(src, src_stride, l, w, dest, dest_stride);
+ fliplrud(dest, dest_stride, l, w);
+}
+
+static void maybe_flip_input(const int16_t **src, int *src_stride, int l, int w,
+ int16_t *buff, int tx_type) {
+ switch (tx_type) {
+ case DCT_DCT:
+ case ADST_DCT:
+ case DCT_ADST:
+ case ADST_ADST:
+ case IDTX:
+ case V_DCT:
+ case H_DCT:
+ case V_ADST:
+ case H_ADST: break;
+ case FLIPADST_DCT:
+ case FLIPADST_ADST:
+ case V_FLIPADST:
+ copy_flipud(*src, *src_stride, l, w, buff, w);
+ *src = buff;
+ *src_stride = w;
+ break;
+ case DCT_FLIPADST:
+ case ADST_FLIPADST:
+ case H_FLIPADST:
+ copy_fliplr(*src, *src_stride, l, w, buff, w);
+ *src = buff;
+ *src_stride = w;
+ break;
+ case FLIPADST_FLIPADST:
+ copy_fliplrud(*src, *src_stride, l, w, buff, w);
+ *src = buff;
+ *src_stride = w;
+ break;
+ default: assert(0); break;
+ }
+}
+#endif // CONFIG_EXT_TX
+
+void av1_fht4x4_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ if (tx_type == DCT_DCT) {
+ aom_fdct4x4_c(input, output, stride);
+ } else {
+ static const transform_2d FHT[] = {
+ { fdct4, fdct4 }, // DCT_DCT
+ { fadst4, fdct4 }, // ADST_DCT
+ { fdct4, fadst4 }, // DCT_ADST
+ { fadst4, fadst4 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst4, fdct4 }, // FLIPADST_DCT
+ { fdct4, fadst4 }, // DCT_FLIPADST
+ { fadst4, fadst4 }, // FLIPADST_FLIPADST
+ { fadst4, fadst4 }, // ADST_FLIPADST
+ { fadst4, fadst4 }, // FLIPADST_ADST
+ { fidtx4, fidtx4 }, // IDTX
+ { fdct4, fidtx4 }, // V_DCT
+ { fidtx4, fdct4 }, // H_DCT
+ { fadst4, fidtx4 }, // V_ADST
+ { fidtx4, fadst4 }, // H_ADST
+ { fadst4, fidtx4 }, // V_FLIPADST
+ { fidtx4, fadst4 }, // H_FLIPADST
+#endif // CONFIG_EXT_TX
+ };
+ const transform_2d ht = FHT[tx_type];
+ tran_low_t out[4 * 4];
+ int i, j;
+ tran_low_t temp_in[4], temp_out[4];
+
+#if CONFIG_EXT_TX
+ int16_t flipped_input[4 * 4];
+ maybe_flip_input(&input, &stride, 4, 4, flipped_input, tx_type);
+#endif
+
+ // 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 av1_fht4x8_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct8, fdct4 }, // DCT_DCT
+ { fadst8, fdct4 }, // ADST_DCT
+ { fdct8, fadst4 }, // DCT_ADST
+ { fadst8, fadst4 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst8, fdct4 }, // FLIPADST_DCT
+ { fdct8, fadst4 }, // DCT_FLIPADST
+ { fadst8, fadst4 }, // FLIPADST_FLIPADST
+ { fadst8, fadst4 }, // ADST_FLIPADST
+ { fadst8, fadst4 }, // FLIPADST_ADST
+ { fidtx8, fidtx4 }, // IDTX
+ { fdct8, fidtx4 }, // V_DCT
+ { fidtx8, fdct4 }, // H_DCT
+ { fadst8, fidtx4 }, // V_ADST
+ { fidtx8, fadst4 }, // H_ADST
+ { fadst8, fidtx4 }, // V_FLIPADST
+ { fidtx8, fadst4 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 4;
+ const int n2 = 8;
+ tran_low_t out[8 * 4];
+ tran_low_t temp_in[8], temp_out[8];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[8 * 4];
+ maybe_flip_input(&input, &stride, n2, n, flipped_input, tx_type);
+#endif
+
+ // Rows
+ for (i = 0; i < n2; ++i) {
+ for (j = 0; j < n; ++j)
+ temp_in[j] =
+ (tran_low_t)fdct_round_shift(input[i * stride + j] * 4 * Sqrt2);
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n; ++j) out[j * n2 + i] = temp_out[j];
+ }
+
+ // Columns
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2];
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n2; ++j)
+ output[i + j * n] = (temp_out[j] + (temp_out[j] < 0)) >> 1;
+ }
+ // Note: overall scale factor of transform is 8 times unitary
+}
+
+void av1_fht8x4_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct4, fdct8 }, // DCT_DCT
+ { fadst4, fdct8 }, // ADST_DCT
+ { fdct4, fadst8 }, // DCT_ADST
+ { fadst4, fadst8 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst4, fdct8 }, // FLIPADST_DCT
+ { fdct4, fadst8 }, // DCT_FLIPADST
+ { fadst4, fadst8 }, // FLIPADST_FLIPADST
+ { fadst4, fadst8 }, // ADST_FLIPADST
+ { fadst4, fadst8 }, // FLIPADST_ADST
+ { fidtx4, fidtx8 }, // IDTX
+ { fdct4, fidtx8 }, // V_DCT
+ { fidtx4, fdct8 }, // H_DCT
+ { fadst4, fidtx8 }, // V_ADST
+ { fidtx4, fadst8 }, // H_ADST
+ { fadst4, fidtx8 }, // V_FLIPADST
+ { fidtx4, fadst8 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 4;
+ const int n2 = 8;
+ tran_low_t out[8 * 4];
+ tran_low_t temp_in[8], temp_out[8];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[8 * 4];
+ maybe_flip_input(&input, &stride, n, n2, flipped_input, tx_type);
+#endif
+
+ // Columns
+ for (i = 0; i < n2; ++i) {
+ for (j = 0; j < n; ++j)
+ temp_in[j] =
+ (tran_low_t)fdct_round_shift(input[j * stride + i] * 4 * Sqrt2);
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n; ++j) out[j * n2 + i] = temp_out[j];
+ }
+
+ // Rows
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2];
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n2; ++j)
+ output[j + i * n2] = (temp_out[j] + (temp_out[j] < 0)) >> 1;
+ }
+ // Note: overall scale factor of transform is 8 times unitary
+}
+
+void av1_fht4x16_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct16, fdct4 }, // DCT_DCT
+ { fadst16, fdct4 }, // ADST_DCT
+ { fdct16, fadst4 }, // DCT_ADST
+ { fadst16, fadst4 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst16, fdct4 }, // FLIPADST_DCT
+ { fdct16, fadst4 }, // DCT_FLIPADST
+ { fadst16, fadst4 }, // FLIPADST_FLIPADST
+ { fadst16, fadst4 }, // ADST_FLIPADST
+ { fadst16, fadst4 }, // FLIPADST_ADST
+ { fidtx16, fidtx4 }, // IDTX
+ { fdct16, fidtx4 }, // V_DCT
+ { fidtx16, fdct4 }, // H_DCT
+ { fadst16, fidtx4 }, // V_ADST
+ { fidtx16, fadst4 }, // H_ADST
+ { fadst16, fidtx4 }, // V_FLIPADST
+ { fidtx16, fadst4 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 4;
+ const int n4 = 16;
+ tran_low_t out[16 * 4];
+ tran_low_t temp_in[16], temp_out[16];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[16 * 4];
+ maybe_flip_input(&input, &stride, n4, n, flipped_input, tx_type);
+#endif
+
+ // Rows
+ for (i = 0; i < n4; ++i) {
+ for (j = 0; j < n; ++j) temp_in[j] = input[i * stride + j] * 4;
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j];
+ }
+
+ // Columns
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4];
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n4; ++j)
+ output[i + j * n] = (temp_out[j] + (temp_out[j] < 0)) >> 1;
+ }
+ // Note: overall scale factor of transform is 8 times unitary
+}
+
+void av1_fht16x4_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct4, fdct16 }, // DCT_DCT
+ { fadst4, fdct16 }, // ADST_DCT
+ { fdct4, fadst16 }, // DCT_ADST
+ { fadst4, fadst16 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst4, fdct16 }, // FLIPADST_DCT
+ { fdct4, fadst16 }, // DCT_FLIPADST
+ { fadst4, fadst16 }, // FLIPADST_FLIPADST
+ { fadst4, fadst16 }, // ADST_FLIPADST
+ { fadst4, fadst16 }, // FLIPADST_ADST
+ { fidtx4, fidtx16 }, // IDTX
+ { fdct4, fidtx16 }, // V_DCT
+ { fidtx4, fdct16 }, // H_DCT
+ { fadst4, fidtx16 }, // V_ADST
+ { fidtx4, fadst16 }, // H_ADST
+ { fadst4, fidtx16 }, // V_FLIPADST
+ { fidtx4, fadst16 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 4;
+ const int n4 = 16;
+ tran_low_t out[16 * 4];
+ tran_low_t temp_in[16], temp_out[16];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[16 * 4];
+ maybe_flip_input(&input, &stride, n, n4, flipped_input, tx_type);
+#endif
+
+ // Columns
+ for (i = 0; i < n4; ++i) {
+ for (j = 0; j < n; ++j) temp_in[j] = input[j * stride + i] * 4;
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j];
+ }
+
+ // Rows
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4];
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n4; ++j)
+ output[j + i * n4] = (temp_out[j] + (temp_out[j] < 0)) >> 1;
+ }
+ // Note: overall scale factor of transform is 8 times unitary
+}
+
+void av1_fht8x16_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct16, fdct8 }, // DCT_DCT
+ { fadst16, fdct8 }, // ADST_DCT
+ { fdct16, fadst8 }, // DCT_ADST
+ { fadst16, fadst8 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst16, fdct8 }, // FLIPADST_DCT
+ { fdct16, fadst8 }, // DCT_FLIPADST
+ { fadst16, fadst8 }, // FLIPADST_FLIPADST
+ { fadst16, fadst8 }, // ADST_FLIPADST
+ { fadst16, fadst8 }, // FLIPADST_ADST
+ { fidtx16, fidtx8 }, // IDTX
+ { fdct16, fidtx8 }, // V_DCT
+ { fidtx16, fdct8 }, // H_DCT
+ { fadst16, fidtx8 }, // V_ADST
+ { fidtx16, fadst8 }, // H_ADST
+ { fadst16, fidtx8 }, // V_FLIPADST
+ { fidtx16, fadst8 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 8;
+ const int n2 = 16;
+ tran_low_t out[16 * 8];
+ tran_low_t temp_in[16], temp_out[16];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[16 * 8];
+ maybe_flip_input(&input, &stride, n2, n, flipped_input, tx_type);
+#endif
+
+ // Rows
+ for (i = 0; i < n2; ++i) {
+ for (j = 0; j < n; ++j)
+ temp_in[j] =
+ (tran_low_t)fdct_round_shift(input[i * stride + j] * 4 * Sqrt2);
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n; ++j)
+ out[j * n2 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
+ }
+
+ // Columns
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2];
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n2; ++j) output[i + j * n] = temp_out[j];
+ }
+ // Note: overall scale factor of transform is 8 times unitary
+}
+
+void av1_fht16x8_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct8, fdct16 }, // DCT_DCT
+ { fadst8, fdct16 }, // ADST_DCT
+ { fdct8, fadst16 }, // DCT_ADST
+ { fadst8, fadst16 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst8, fdct16 }, // FLIPADST_DCT
+ { fdct8, fadst16 }, // DCT_FLIPADST
+ { fadst8, fadst16 }, // FLIPADST_FLIPADST
+ { fadst8, fadst16 }, // ADST_FLIPADST
+ { fadst8, fadst16 }, // FLIPADST_ADST
+ { fidtx8, fidtx16 }, // IDTX
+ { fdct8, fidtx16 }, // V_DCT
+ { fidtx8, fdct16 }, // H_DCT
+ { fadst8, fidtx16 }, // V_ADST
+ { fidtx8, fadst16 }, // H_ADST
+ { fadst8, fidtx16 }, // V_FLIPADST
+ { fidtx8, fadst16 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 8;
+ const int n2 = 16;
+ tran_low_t out[16 * 8];
+ tran_low_t temp_in[16], temp_out[16];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[16 * 8];
+ maybe_flip_input(&input, &stride, n, n2, flipped_input, tx_type);
+#endif
+
+ // Columns
+ for (i = 0; i < n2; ++i) {
+ for (j = 0; j < n; ++j)
+ temp_in[j] =
+ (tran_low_t)fdct_round_shift(input[j * stride + i] * 4 * Sqrt2);
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n; ++j)
+ out[j * n2 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
+ }
+
+ // Rows
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2];
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n2; ++j) output[j + i * n2] = temp_out[j];
+ }
+ // Note: overall scale factor of transform is 8 times unitary
+}
+
+void av1_fht8x32_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct32, fdct8 }, // DCT_DCT
+ { fhalfright32, fdct8 }, // ADST_DCT
+ { fdct32, fadst8 }, // DCT_ADST
+ { fhalfright32, fadst8 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fhalfright32, fdct8 }, // FLIPADST_DCT
+ { fdct32, fadst8 }, // DCT_FLIPADST
+ { fhalfright32, fadst8 }, // FLIPADST_FLIPADST
+ { fhalfright32, fadst8 }, // ADST_FLIPADST
+ { fhalfright32, fadst8 }, // FLIPADST_ADST
+ { fidtx32, fidtx8 }, // IDTX
+ { fdct32, fidtx8 }, // V_DCT
+ { fidtx32, fdct8 }, // H_DCT
+ { fhalfright32, fidtx8 }, // V_ADST
+ { fidtx32, fadst8 }, // H_ADST
+ { fhalfright32, fidtx8 }, // V_FLIPADST
+ { fidtx32, fadst8 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 8;
+ const int n4 = 32;
+ tran_low_t out[32 * 8];
+ tran_low_t temp_in[32], temp_out[32];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[32 * 8];
+ maybe_flip_input(&input, &stride, n4, n, flipped_input, tx_type);
+#endif
+
+ // Rows
+ for (i = 0; i < n4; ++i) {
+ for (j = 0; j < n; ++j) temp_in[j] = input[i * stride + j] * 4;
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j];
+ }
+
+ // Columns
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4];
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n4; ++j)
+ output[i + j * n] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
+ }
+ // Note: overall scale factor of transform is 4 times unitary
+}
+
+void av1_fht32x8_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct8, fdct32 }, // DCT_DCT
+ { fadst8, fdct32 }, // ADST_DCT
+ { fdct8, fhalfright32 }, // DCT_ADST
+ { fadst8, fhalfright32 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst8, fdct32 }, // FLIPADST_DCT
+ { fdct8, fhalfright32 }, // DCT_FLIPADST
+ { fadst8, fhalfright32 }, // FLIPADST_FLIPADST
+ { fadst8, fhalfright32 }, // ADST_FLIPADST
+ { fadst8, fhalfright32 }, // FLIPADST_ADST
+ { fidtx8, fidtx32 }, // IDTX
+ { fdct8, fidtx32 }, // V_DCT
+ { fidtx8, fdct32 }, // H_DCT
+ { fadst8, fidtx32 }, // V_ADST
+ { fidtx8, fhalfright32 }, // H_ADST
+ { fadst8, fidtx32 }, // V_FLIPADST
+ { fidtx8, fhalfright32 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 8;
+ const int n4 = 32;
+ tran_low_t out[32 * 8];
+ tran_low_t temp_in[32], temp_out[32];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[32 * 8];
+ maybe_flip_input(&input, &stride, n, n4, flipped_input, tx_type);
+#endif
+
+ // Columns
+ for (i = 0; i < n4; ++i) {
+ for (j = 0; j < n; ++j) temp_in[j] = input[j * stride + i] * 4;
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j];
+ }
+
+ // Rows
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4];
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n4; ++j)
+ output[j + i * n4] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
+ }
+ // Note: overall scale factor of transform is 4 times unitary
+}
+
+void av1_fht16x32_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct32, fdct16 }, // DCT_DCT
+ { fhalfright32, fdct16 }, // ADST_DCT
+ { fdct32, fadst16 }, // DCT_ADST
+ { fhalfright32, fadst16 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fhalfright32, fdct16 }, // FLIPADST_DCT
+ { fdct32, fadst16 }, // DCT_FLIPADST
+ { fhalfright32, fadst16 }, // FLIPADST_FLIPADST
+ { fhalfright32, fadst16 }, // ADST_FLIPADST
+ { fhalfright32, fadst16 }, // FLIPADST_ADST
+ { fidtx32, fidtx16 }, // IDTX
+ { fdct32, fidtx16 }, // V_DCT
+ { fidtx32, fdct16 }, // H_DCT
+ { fhalfright32, fidtx16 }, // V_ADST
+ { fidtx32, fadst16 }, // H_ADST
+ { fhalfright32, fidtx16 }, // V_FLIPADST
+ { fidtx32, fadst16 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 16;
+ const int n2 = 32;
+ tran_low_t out[32 * 16];
+ tran_low_t temp_in[32], temp_out[32];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[32 * 16];
+ maybe_flip_input(&input, &stride, n2, n, flipped_input, tx_type);
+#endif
+
+ // Rows
+ for (i = 0; i < n2; ++i) {
+ for (j = 0; j < n; ++j)
+ temp_in[j] =
+ (tran_low_t)fdct_round_shift(input[i * stride + j] * 4 * Sqrt2);
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n; ++j)
+ out[j * n2 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 4);
+ }
+
+ // Columns
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2];
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n2; ++j) output[i + j * n] = temp_out[j];
+ }
+ // Note: overall scale factor of transform is 4 times unitary
+}
+
+void av1_fht32x16_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct16, fdct32 }, // DCT_DCT
+ { fadst16, fdct32 }, // ADST_DCT
+ { fdct16, fhalfright32 }, // DCT_ADST
+ { fadst16, fhalfright32 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst16, fdct32 }, // FLIPADST_DCT
+ { fdct16, fhalfright32 }, // DCT_FLIPADST
+ { fadst16, fhalfright32 }, // FLIPADST_FLIPADST
+ { fadst16, fhalfright32 }, // ADST_FLIPADST
+ { fadst16, fhalfright32 }, // FLIPADST_ADST
+ { fidtx16, fidtx32 }, // IDTX
+ { fdct16, fidtx32 }, // V_DCT
+ { fidtx16, fdct32 }, // H_DCT
+ { fadst16, fidtx32 }, // V_ADST
+ { fidtx16, fhalfright32 }, // H_ADST
+ { fadst16, fidtx32 }, // V_FLIPADST
+ { fidtx16, fhalfright32 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ const int n = 16;
+ const int n2 = 32;
+ tran_low_t out[32 * 16];
+ tran_low_t temp_in[32], temp_out[32];
+ int i, j;
+#if CONFIG_EXT_TX
+ int16_t flipped_input[32 * 16];
+ maybe_flip_input(&input, &stride, n, n2, flipped_input, tx_type);
+#endif
+
+ // Columns
+ for (i = 0; i < n2; ++i) {
+ for (j = 0; j < n; ++j)
+ temp_in[j] =
+ (tran_low_t)fdct_round_shift(input[j * stride + i] * 4 * Sqrt2);
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < n; ++j)
+ out[j * n2 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 4);
+ }
+
+ // Rows
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2];
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < n2; ++j) output[j + i * n2] = temp_out[j];
+ }
+ // Note: overall scale factor of transform is 4 times unitary
+}
+
+void av1_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
+#if CONFIG_AOM_QM
+ ,
+ const qm_val_t *qm_ptr, const qm_val_t *iqm_ptr
+#endif
+ ) {
+ 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
+
+ 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];
+#if CONFIG_AOM_QM
+ const qm_val_t wt = qm_ptr[rc];
+ const qm_val_t iwt = iqm_ptr[rc];
+ const int dequant =
+ (dequant_ptr[rc != 0] * iwt + (1 << (AOM_QM_BITS - 1))) >>
+ AOM_QM_BITS;
+#endif
+ const int coeff_sign = (coeff >> 31);
+ const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+ int64_t tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
+ int tmp32;
+#if CONFIG_AOM_QM
+ tmp32 = (int)((tmp * quant_ptr[rc != 0] * wt) >> (16 + AOM_QM_BITS));
+ qcoeff_ptr[rc] = (tmp32 ^ coeff_sign) - coeff_sign;
+ dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant;
+#else
+ tmp32 = (int)((tmp * quant_ptr[rc != 0]) >> 16);
+ qcoeff_ptr[rc] = (tmp32 ^ coeff_sign) - coeff_sign;
+ dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
+#endif
+
+ if (tmp32) eob = i;
+ }
+ }
+ *eob_ptr = eob + 1;
+}
+
+void av1_fht8x8_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ if (tx_type == DCT_DCT) {
+ aom_fdct8x8_c(input, output, stride);
+ } else {
+ static const transform_2d FHT[] = {
+ { fdct8, fdct8 }, // DCT_DCT
+ { fadst8, fdct8 }, // ADST_DCT
+ { fdct8, fadst8 }, // DCT_ADST
+ { fadst8, fadst8 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst8, fdct8 }, // FLIPADST_DCT
+ { fdct8, fadst8 }, // DCT_FLIPADST
+ { fadst8, fadst8 }, // FLIPADST_FLIPADST
+ { fadst8, fadst8 }, // ADST_FLIPADST
+ { fadst8, fadst8 }, // FLIPADST_ADST
+ { fidtx8, fidtx8 }, // IDTX
+ { fdct8, fidtx8 }, // V_DCT
+ { fidtx8, fdct8 }, // H_DCT
+ { fadst8, fidtx8 }, // V_ADST
+ { fidtx8, fadst8 }, // H_ADST
+ { fadst8, fidtx8 }, // V_FLIPADST
+ { fidtx8, fadst8 }, // H_FLIPADST
+#endif // CONFIG_EXT_TX
+ };
+ const transform_2d ht = FHT[tx_type];
+ tran_low_t out[64];
+ int i, j;
+ tran_low_t temp_in[8], temp_out[8];
+
+#if CONFIG_EXT_TX
+ int16_t flipped_input[8 * 8];
+ maybe_flip_input(&input, &stride, 8, 8, flipped_input, tx_type);
+#endif
+
+ // 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 av1_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 av1_fht16x16_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct16, fdct16 }, // DCT_DCT
+ { fadst16, fdct16 }, // ADST_DCT
+ { fdct16, fadst16 }, // DCT_ADST
+ { fadst16, fadst16 }, // ADST_ADST
+#if CONFIG_EXT_TX
+ { fadst16, fdct16 }, // FLIPADST_DCT
+ { fdct16, fadst16 }, // DCT_FLIPADST
+ { fadst16, fadst16 }, // FLIPADST_FLIPADST
+ { fadst16, fadst16 }, // ADST_FLIPADST
+ { fadst16, fadst16 }, // FLIPADST_ADST
+ { fidtx16, fidtx16 }, // IDTX
+ { fdct16, fidtx16 }, // V_DCT
+ { fidtx16, fdct16 }, // H_DCT
+ { fadst16, fidtx16 }, // V_ADST
+ { fidtx16, fadst16 }, // H_ADST
+ { fadst16, fidtx16 }, // V_FLIPADST
+ { fidtx16, fadst16 }, // H_FLIPADST
+#endif // CONFIG_EXT_TX
+ };
+
+ const transform_2d ht = FHT[tx_type];
+ tran_low_t out[256];
+ int i, j;
+ tran_low_t temp_in[16], temp_out[16];
+
+#if CONFIG_EXT_TX
+ int16_t flipped_input[16 * 16];
+ maybe_flip_input(&input, &stride, 16, 16, flipped_input, tx_type);
+#endif
+
+ // 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_HIGHBITDEPTH
+void av1_highbd_fht4x4_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht4x4_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht4x8_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht4x8_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht8x4_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht8x4_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht8x16_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht8x16_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht16x8_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht16x8_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht16x32_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht16x32_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht32x16_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht32x16_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht4x16_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht4x16_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht16x4_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht16x4_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht8x32_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht8x32_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht32x8_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht32x8_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fht8x8_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht8x8_c(input, output, stride, tx_type);
+}
+
+void av1_highbd_fwht4x4_c(const int16_t *input, tran_low_t *output,
+ int stride) {
+ av1_fwht4x4_c(input, output, stride);
+}
+
+void av1_highbd_fht16x16_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht16x16_c(input, output, stride, tx_type);
+}
+#endif // CONFIG_HIGHBITDEPTH
+
+void av1_fht32x32_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct32, fdct32 }, // DCT_DCT
+#if CONFIG_EXT_TX
+ { fhalfright32, fdct32 }, // ADST_DCT
+ { fdct32, fhalfright32 }, // DCT_ADST
+ { fhalfright32, fhalfright32 }, // ADST_ADST
+ { fhalfright32, fdct32 }, // FLIPADST_DCT
+ { fdct32, fhalfright32 }, // DCT_FLIPADST
+ { fhalfright32, fhalfright32 }, // FLIPADST_FLIPADST
+ { fhalfright32, fhalfright32 }, // ADST_FLIPADST
+ { fhalfright32, fhalfright32 }, // FLIPADST_ADST
+ { fidtx32, fidtx32 }, // IDTX
+ { fdct32, fidtx32 }, // V_DCT
+ { fidtx32, fdct32 }, // H_DCT
+ { fhalfright32, fidtx32 }, // V_ADST
+ { fidtx32, fhalfright32 }, // H_ADST
+ { fhalfright32, fidtx32 }, // V_FLIPADST
+ { fidtx32, fhalfright32 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ tran_low_t out[1024];
+ int i, j;
+ tran_low_t temp_in[32], temp_out[32];
+
+#if CONFIG_EXT_TX
+ int16_t flipped_input[32 * 32];
+ maybe_flip_input(&input, &stride, 32, 32, flipped_input, tx_type);
+#endif
+
+ // Columns
+ for (i = 0; i < 32; ++i) {
+ for (j = 0; j < 32; ++j) temp_in[j] = input[j * stride + i] * 4;
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < 32; ++j)
+ out[j * 32 + i] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 4);
+ }
+
+ // Rows
+ for (i = 0; i < 32; ++i) {
+ for (j = 0; j < 32; ++j) temp_in[j] = out[j + i * 32];
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < 32; ++j) output[j + i * 32] = temp_out[j];
+ }
+}
+
+#if CONFIG_TX64X64
+#if CONFIG_EXT_TX
+static void fidtx64(const tran_low_t *input, tran_low_t *output) {
+ int i;
+ for (i = 0; i < 64; ++i)
+ output[i] = (tran_low_t)fdct_round_shift(input[i] * 4 * Sqrt2);
+}
+
+// For use in lieu of ADST
+static void fhalfright64(const tran_low_t *input, tran_low_t *output) {
+ int i;
+ tran_low_t inputhalf[32];
+ for (i = 0; i < 32; ++i) {
+ output[32 + i] = (tran_low_t)fdct_round_shift(input[i] * 4 * Sqrt2);
+ }
+ // Multiply input by sqrt(2)
+ for (i = 0; i < 32; ++i) {
+ inputhalf[i] = (tran_low_t)fdct_round_shift(input[i + 32] * Sqrt2);
+ }
+ fdct32(inputhalf, output);
+ // Note overall scaling factor is 2 times unitary
+}
+#endif // CONFIG_EXT_TX
+
+static void fdct64_col(const tran_low_t *input, tran_low_t *output) {
+ int32_t in[64], out[64];
+ int i;
+ for (i = 0; i < 64; ++i) in[i] = (int32_t)input[i];
+ av1_fdct64_new(in, out, fwd_cos_bit_col_dct_dct_64,
+ fwd_stage_range_col_dct_dct_64);
+ for (i = 0; i < 64; ++i) output[i] = (tran_low_t)out[i];
+}
+
+static void fdct64_row(const tran_low_t *input, tran_low_t *output) {
+ int32_t in[64], out[64];
+ int i;
+ for (i = 0; i < 64; ++i) in[i] = (int32_t)input[i];
+ av1_fdct64_new(in, out, fwd_cos_bit_row_dct_dct_64,
+ fwd_stage_range_row_dct_dct_64);
+ for (i = 0; i < 64; ++i) output[i] = (tran_low_t)out[i];
+}
+
+void av1_fht64x64_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ static const transform_2d FHT[] = {
+ { fdct64_col, fdct64_row }, // DCT_DCT
+#if CONFIG_EXT_TX
+ { fhalfright64, fdct64_row }, // ADST_DCT
+ { fdct64_col, fhalfright64 }, // DCT_ADST
+ { fhalfright64, fhalfright64 }, // ADST_ADST
+ { fhalfright64, fdct64_row }, // FLIPADST_DCT
+ { fdct64_col, fhalfright64 }, // DCT_FLIPADST
+ { fhalfright64, fhalfright64 }, // FLIPADST_FLIPADST
+ { fhalfright64, fhalfright64 }, // ADST_FLIPADST
+ { fhalfright64, fhalfright64 }, // FLIPADST_ADST
+ { fidtx64, fidtx64 }, // IDTX
+ { fdct64_col, fidtx64 }, // V_DCT
+ { fidtx64, fdct64_row }, // H_DCT
+ { fhalfright64, fidtx64 }, // V_ADST
+ { fidtx64, fhalfright64 }, // H_ADST
+ { fhalfright64, fidtx64 }, // V_FLIPADST
+ { fidtx64, fhalfright64 }, // H_FLIPADST
+#endif
+ };
+ const transform_2d ht = FHT[tx_type];
+ tran_low_t out[4096];
+ int i, j;
+ tran_low_t temp_in[64], temp_out[64];
+#if CONFIG_EXT_TX
+ int16_t flipped_input[64 * 64];
+ maybe_flip_input(&input, &stride, 64, 64, flipped_input, tx_type);
+#endif
+ // Columns
+ for (i = 0; i < 64; ++i) {
+ for (j = 0; j < 64; ++j) temp_in[j] = input[j * stride + i];
+ ht.cols(temp_in, temp_out);
+ for (j = 0; j < 64; ++j)
+ out[j * 64 + i] = (temp_out[j] + 1 + (temp_out[j] > 0)) >> 2;
+ }
+
+ // Rows
+ for (i = 0; i < 64; ++i) {
+ for (j = 0; j < 64; ++j) temp_in[j] = out[j + i * 64];
+ ht.rows(temp_in, temp_out);
+ for (j = 0; j < 64; ++j)
+ output[j + i * 64] =
+ (tran_low_t)((temp_out[j] + 1 + (temp_out[j] < 0)) >> 2);
+ }
+}
+#endif // CONFIG_TX64X64
+
+#if CONFIG_EXT_TX
+// Forward identity transform.
+void av1_fwd_idtx_c(const int16_t *src_diff, tran_low_t *coeff, int stride,
+ int bs, int tx_type) {
+ int r, c;
+ const int shift = bs < 32 ? 3 : (bs < 64 ? 2 : 1);
+ if (tx_type == IDTX) {
+ for (r = 0; r < bs; ++r) {
+ for (c = 0; c < bs; ++c) coeff[c] = src_diff[c] * (1 << shift);
+ src_diff += stride;
+ coeff += bs;
+ }
+ }
+}
+#endif // CONFIG_EXT_TX
+
+#if CONFIG_HIGHBITDEPTH
+void av1_highbd_fht32x32_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht32x32_c(input, output, stride, tx_type);
+}
+
+#if CONFIG_TX64X64
+void av1_highbd_fht64x64_c(const int16_t *input, tran_low_t *output, int stride,
+ int tx_type) {
+ av1_fht64x64_c(input, output, stride, tx_type);
+}
+#endif // CONFIG_TX64X64
+#endif // CONFIG_HIGHBITDEPTH
+#endif // !AV1_DCT_GTEST