Commit ff7fe993 authored by Angie Chiang's avatar Angie Chiang
Browse files

Add vp10_fwd_txfm2d_4x4

Change-Id: I9bca3b1c76b64575366d71ab65ffef7264ce0c9b
parent 444acd77
/*
* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vp10/common/vp10_txfm.h"
static INLINE void fwd_txfm2d_c(const int16_t *input, int32_t *output,
const int stride, const TXFM_2D_CFG *cfg,
int32_t *txfm_buf) {
int i, j;
const int txfm_size = cfg->txfm_size;
const int8_t *shift = cfg->shift;
const int8_t *stage_range_col = cfg->stage_range_col;
const int8_t *stage_range_row = cfg->stage_range_row;
const int8_t *cos_bit_col = cfg->cos_bit_col;
const int8_t *cos_bit_row = cfg->cos_bit_row;
const TxfmFunc txfm_func_col = cfg->txfm_func_col;
const TxfmFunc txfm_func_row = cfg->txfm_func_row;
// txfm_buf's length is txfm_size * txfm_size + 2 * txfm_size
// it is used for intermediate data buffering
int32_t *temp_in = txfm_buf;
int32_t *temp_out = temp_in + txfm_size;
int32_t *buf = temp_out + txfm_size;
// Columns
for (i = 0; i < txfm_size; ++i) {
for (j = 0; j < txfm_size; ++j)
temp_in[j] = input[j * stride + i];
round_shift_array(temp_in, txfm_size, -shift[0]);
txfm_func_col(temp_in, temp_out, cos_bit_col, stage_range_col);
round_shift_array(temp_out, txfm_size, -shift[1]);
for (j = 0; j < txfm_size; ++j)
buf[j * txfm_size + i] = temp_out[j];
}
// Rows
for (i = 0; i < txfm_size; ++i) {
for (j = 0; j < txfm_size; ++j)
temp_in[j] = buf[j + i * txfm_size];
txfm_func_row(temp_in, temp_out, cos_bit_row, stage_range_row);
round_shift_array(temp_out, txfm_size, -shift[2]);
for (j = 0; j < txfm_size; ++j)
output[j + i * txfm_size] = (int32_t)temp_out[j];
}
}
void vp10_fwd_txfm2d_4x4(const int16_t *input, int32_t *output,
const int stride, const TXFM_2D_CFG *cfg,
const int bd) {
int txfm_buf[4 * 4 + 4 + 4];
(void)bd;
fwd_txfm2d_c(input, output, stride, cfg, txfm_buf);
}
/*
* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VP10_FWD_TXFM2D_H_
#define VP10_FWD_TXFM2D_H_
#include "vp10/common/vp10_txfm.h"
#ifdef __cplusplus
extern "C" {
#endif
void vp10_fwd_txfm2d_4x4(const int16_t *input, int32_t *output,
const int stride, const TXFM_2D_CFG *cfg,
const int bd);
#ifdef __cplusplus
}
#endif
#endif // VP10_FWD_TXFM2D_H_
......@@ -68,6 +68,8 @@ VP10_COMMON_SRCS-yes += common/vp10_fwd_txfm1d.h
VP10_COMMON_SRCS-yes += common/vp10_fwd_txfm1d.c
VP10_COMMON_SRCS-yes += common/vp10_inv_txfm1d.h
VP10_COMMON_SRCS-yes += common/vp10_inv_txfm1d.c
VP10_COMMON_SRCS-yes += common/vp10_fwd_txfm2d.h
VP10_COMMON_SRCS-yes += common/vp10_fwd_txfm2d.c
VP10_COMMON_SRCS-$(CONFIG_VP9_POSTPROC) += common/postproc.h
VP10_COMMON_SRCS-$(CONFIG_VP9_POSTPROC) += common/postproc.c
......
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