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/*
* 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 "./av1_rtcd.h"
#include "./aom_config.h"
#include "./aom_dsp_rtcd.h"
#include "av1/common/idct.h"
#include "av1/encoder/hybrid_fwd_txfm.h"
#if CONFIG_CB4X4
static void fwd_txfm_2x2(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type, int lossless) {
tran_high_t a1 = src_diff[0];
tran_high_t b1 = src_diff[1];
tran_high_t c1 = src_diff[diff_stride];
tran_high_t d1 = src_diff[1 + diff_stride];
tran_high_t a2 = a1 + c1;
tran_high_t b2 = b1 + d1;
tran_high_t c2 = a1 - c1;
tran_high_t d2 = b1 - d1;
a1 = a2 + b2;
b1 = a2 - b2;
c1 = c2 + d2;
d1 = c2 - d2;
coeff[0] = (tran_low_t)(4 * a1);
coeff[1] = (tran_low_t)(4 * b1);
coeff[2] = (tran_low_t)(4 * c1);
coeff[3] = (tran_low_t)(4 * d1);
(void)tx_type;
(void)lossless;
}
#endif
static void fwd_txfm_4x4(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type, int lossless) {
if (lossless) {
assert(tx_type == DCT_DCT);
av1_fwht4x4(src_diff, coeff, diff_stride);
return;
}
av1_fht4x4(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_4x8(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht4x8(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_8x4(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht8x4(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_8x16(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht8x16(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_16x8(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht16x8(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_16x32(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht16x32(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_32x16(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht32x16(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_8x8(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht8x8(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_16x16(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht16x16(src_diff, coeff, diff_stride, tx_type);
}
static void fwd_txfm_32x32(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
av1_fht32x32(src_diff, coeff, diff_stride, tx_type);
}
#if CONFIG_TX64X64
static void fwd_txfm_64x64(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt) {
(void)fwd_txfm_opt;
#if CONFIG_EXT_TX
if (tx_type == IDTX)
av1_fwd_idtx_c(src_diff, coeff, diff_stride, 64, tx_type);
else
#endif
av1_fht64x64(src_diff, coeff, diff_stride, tx_type);
}
#endif // CONFIG_TX64X64
#if CONFIG_HIGHBITDEPTH
#if CONFIG_CB4X4
static void highbd_fwd_txfm_2x2(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type, int lossless,
const int bd) {
tran_high_t a1 = src_diff[0];
tran_high_t b1 = src_diff[1];
tran_high_t c1 = src_diff[diff_stride];
tran_high_t d1 = src_diff[1 + diff_stride];
tran_high_t a2 = a1 + c1;
tran_high_t b2 = b1 + d1;
tran_high_t c2 = a1 - c1;
tran_high_t d2 = b1 - d1;
a1 = a2 + b2;
b1 = a2 - b2;
c1 = c2 + d2;
d1 = c2 - d2;
coeff[0] = (tran_low_t)(4 * a1);
coeff[1] = (tran_low_t)(4 * b1);
coeff[2] = (tran_low_t)(4 * c1);
coeff[3] = (tran_low_t)(4 * d1);
(void)tx_type;
(void)lossless;
(void)bd;
}
#endif
static void highbd_fwd_txfm_4x4(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type, int lossless,
const int bd) {
if (lossless) {
assert(tx_type == DCT_DCT);
av1_highbd_fwht4x4(src_diff, coeff, diff_stride);
return;
}
switch (tx_type) {
case DCT_DCT:
case ADST_DCT:
case DCT_ADST:
case ADST_ADST:
av1_fwd_txfm2d_4x4(src_diff, coeff, diff_stride, tx_type, bd);
break;
#if CONFIG_EXT_TX
case FLIPADST_DCT:
case DCT_FLIPADST:
case FLIPADST_FLIPADST:
case ADST_FLIPADST:
case FLIPADST_ADST:
av1_fwd_txfm2d_4x4(src_diff, coeff, diff_stride, tx_type, bd);
break;
case V_DCT:
case H_DCT:
case V_ADST:
case H_ADST:
case V_FLIPADST:
case H_FLIPADST:
av1_highbd_fht4x4_c(src_diff, coeff, diff_stride, tx_type);
break;
case IDTX: av1_fwd_idtx_c(src_diff, coeff, diff_stride, 4, tx_type); break;
#endif // CONFIG_EXT_TX
default: assert(0);
}
}
static void highbd_fwd_txfm_4x8(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
(void)bd;
av1_highbd_fht4x8(src_diff, coeff, diff_stride, tx_type);
}
static void highbd_fwd_txfm_8x4(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
(void)bd;
av1_highbd_fht8x4(src_diff, coeff, diff_stride, tx_type);
}
static void highbd_fwd_txfm_8x16(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
(void)bd;
av1_highbd_fht8x16(src_diff, coeff, diff_stride, tx_type);
}
static void highbd_fwd_txfm_16x8(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
(void)bd;
av1_highbd_fht16x8(src_diff, coeff, diff_stride, tx_type);
}
static void highbd_fwd_txfm_16x32(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
(void)bd;
av1_highbd_fht16x32(src_diff, coeff, diff_stride, tx_type);
}
static void highbd_fwd_txfm_32x16(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
(void)bd;
av1_highbd_fht32x16(src_diff, coeff, diff_stride, tx_type);
}
static void highbd_fwd_txfm_8x8(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
switch (tx_type) {
case DCT_DCT:
case ADST_DCT:
case DCT_ADST:
case ADST_ADST:
av1_fwd_txfm2d_8x8(src_diff, coeff, diff_stride, tx_type, bd);
break;
#if CONFIG_EXT_TX
case FLIPADST_DCT:
case DCT_FLIPADST:
case FLIPADST_FLIPADST:
case ADST_FLIPADST:
case FLIPADST_ADST:
av1_fwd_txfm2d_8x8(src_diff, coeff, diff_stride, tx_type, bd);
break;
case V_DCT:
case H_DCT:
case V_ADST:
case H_ADST:
case V_FLIPADST:
case H_FLIPADST:
// Use C version since DST exists only in C
av1_highbd_fht8x8_c(src_diff, coeff, diff_stride, tx_type);
break;
case IDTX: av1_fwd_idtx_c(src_diff, coeff, diff_stride, 8, tx_type); break;
#endif // CONFIG_EXT_TX
default: assert(0);
}
}
static void highbd_fwd_txfm_16x16(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
switch (tx_type) {
case DCT_DCT:
case ADST_DCT:
case DCT_ADST:
case ADST_ADST:
av1_fwd_txfm2d_16x16(src_diff, coeff, diff_stride, tx_type, bd);
break;
#if CONFIG_EXT_TX
case FLIPADST_DCT:
case DCT_FLIPADST:
case FLIPADST_FLIPADST:
case ADST_FLIPADST:
case FLIPADST_ADST:
av1_fwd_txfm2d_16x16(src_diff, coeff, diff_stride, tx_type, bd);
break;
case V_DCT:
case H_DCT:
case V_ADST:
case H_ADST:
case V_FLIPADST:
case H_FLIPADST:
// Use C version since DST exists only in C
av1_highbd_fht16x16_c(src_diff, coeff, diff_stride, tx_type);
break;
case IDTX: av1_fwd_idtx_c(src_diff, coeff, diff_stride, 16, tx_type); break;
#endif // CONFIG_EXT_TX
default: assert(0);
}
}
static void highbd_fwd_txfm_32x32(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
switch (tx_type) {
case DCT_DCT:
av1_fwd_txfm2d_32x32(src_diff, coeff, diff_stride, tx_type, bd);
break;
#if CONFIG_EXT_TX
case ADST_DCT:
case DCT_ADST:
case ADST_ADST:
case FLIPADST_DCT:
case DCT_FLIPADST:
case FLIPADST_FLIPADST:
case ADST_FLIPADST:
case FLIPADST_ADST:
case V_DCT:
case H_DCT:
case V_ADST:
case H_ADST:
case V_FLIPADST:
case H_FLIPADST:
av1_highbd_fht32x32_c(src_diff, coeff, diff_stride, tx_type);
break;
case IDTX: av1_fwd_idtx_c(src_diff, coeff, diff_stride, 32, tx_type); break;
#endif // CONFIG_EXT_TX
default: assert(0); break;
}
}
#if CONFIG_TX64X64
static void highbd_fwd_txfm_64x64(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, TX_TYPE tx_type,
FWD_TXFM_OPT fwd_txfm_opt, const int bd) {
(void)fwd_txfm_opt;
(void)bd;
switch (tx_type) {
case DCT_DCT:
av1_highbd_fht64x64(src_diff, coeff, diff_stride, tx_type);
break;
#if CONFIG_EXT_TX
case ADST_DCT:
case DCT_ADST:
case ADST_ADST:
case FLIPADST_DCT:
case DCT_FLIPADST:
case FLIPADST_FLIPADST:
case ADST_FLIPADST:
case FLIPADST_ADST:
case V_DCT:
case H_DCT:
case V_ADST:
case H_ADST:
case V_FLIPADST:
case H_FLIPADST:
av1_highbd_fht64x64(src_diff, coeff, diff_stride, tx_type);
break;
case IDTX: av1_fwd_idtx_c(src_diff, coeff, diff_stride, 64, tx_type); break;
#endif // CONFIG_EXT_TX
default: assert(0); break;
}
}
#endif // CONFIG_TX64X64
#endif // CONFIG_HIGHBITDEPTH
void av1_fwd_txfm(const int16_t *src_diff, tran_low_t *coeff, int diff_stride,
FWD_TXFM_PARAM *fwd_txfm_param) {
const int fwd_txfm_opt = FWD_TXFM_OPT_NORMAL;
const TX_TYPE tx_type = fwd_txfm_param->tx_type;
const TX_SIZE tx_size = fwd_txfm_param->tx_size;
const int lossless = fwd_txfm_param->lossless;
switch (tx_size) {
#if CONFIG_TX64X64
case TX_64X64:
fwd_txfm_64x64(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
#endif // CONFIG_TX64X64
case TX_32X32:
fwd_txfm_32x32(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_16X16:
fwd_txfm_16x16(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_8X8:
fwd_txfm_8x8(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_4X8:
fwd_txfm_4x8(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_8X4:
fwd_txfm_8x4(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_8X16:
fwd_txfm_8x16(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_16X8:
fwd_txfm_16x8(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_16X32:
fwd_txfm_16x32(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_32X16:
fwd_txfm_32x16(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt);
break;
case TX_4X4:
fwd_txfm_4x4(src_diff, coeff, diff_stride, tx_type, lossless);
break;
#if CONFIG_CB4X4
case TX_2X2:
fwd_txfm_2x2(src_diff, coeff, diff_stride, tx_type, lossless);
break;
#endif
default: assert(0); break;
}
}
#if CONFIG_HIGHBITDEPTH
void av1_highbd_fwd_txfm(const int16_t *src_diff, tran_low_t *coeff,
int diff_stride, FWD_TXFM_PARAM *fwd_txfm_param) {
const int fwd_txfm_opt = FWD_TXFM_OPT_NORMAL;
const TX_TYPE tx_type = fwd_txfm_param->tx_type;
const TX_SIZE tx_size = fwd_txfm_param->tx_size;
const int lossless = fwd_txfm_param->lossless;
const int bd = fwd_txfm_param->bd;
switch (tx_size) {
#if CONFIG_TX64X64
case TX_64X64:
highbd_fwd_txfm_64x64(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
#endif // CONFIG_TX64X64
case TX_32X32:
highbd_fwd_txfm_32x32(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_16X16:
highbd_fwd_txfm_16x16(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_8X8:
highbd_fwd_txfm_8x8(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_4X8:
highbd_fwd_txfm_4x8(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_8X4:
highbd_fwd_txfm_8x4(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_8X16:
highbd_fwd_txfm_8x16(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_16X8:
highbd_fwd_txfm_16x8(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_16X32:
highbd_fwd_txfm_16x32(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_32X16:
highbd_fwd_txfm_32x16(src_diff, coeff, diff_stride, tx_type, fwd_txfm_opt,
bd);
break;
case TX_4X4:
highbd_fwd_txfm_4x4(src_diff, coeff, diff_stride, tx_type, lossless, bd);
break;
#if CONFIG_CB4X4
case TX_2X2:
highbd_fwd_txfm_2x2(src_diff, coeff, diff_stride, tx_type, lossless, bd);
break;
#endif
default: assert(0); break;
}
}
#endif // CONFIG_HIGHBITDEPTH
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