av1_inv_txfm1d.h - mozsearch

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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.

*/

#ifndef AOM_AV1_COMMON_AV1_INV_TXFM1D_H_

#define AOM_AV1_COMMON_AV1_INV_TXFM1D_H_

#include "av1/common/av1_txfm.h"

#ifdef __cplusplus

extern "C" {

#endif

static inline int32_t clamp_value(int32_t value, int8_t bit) {

  if (bit <= 0) return value;  // Do nothing for invalid clamp bit.

  const int64_t max_value = (1LL << (bit - 1)) - 1;

  const int64_t min_value = -(1LL << (bit - 1));

  return (int32_t)clamp64(value, min_value, max_value);

static inline void clamp_buf(int32_t *buf, int32_t size, int8_t bit) {

  for (int i = 0; i < size; ++i) buf[i] = clamp_value(buf[i], bit);

void av1_idct4(const int32_t *input, int32_t *output, int8_t cos_bit,

               const int8_t *stage_range);

void av1_idct8(const int32_t *input, int32_t *output, int8_t cos_bit,

               const int8_t *stage_range);

void av1_idct16(const int32_t *input, int32_t *output, int8_t cos_bit,

                const int8_t *stage_range);

void av1_idct32(const int32_t *input, int32_t *output, int8_t cos_bit,

                const int8_t *stage_range);

void av1_idct64(const int32_t *input, int32_t *output, int8_t cos_bit,

                const int8_t *stage_range);

void av1_iadst4(const int32_t *input, int32_t *output, int8_t cos_bit,

                const int8_t *stage_range);

void av1_iadst8(const int32_t *input, int32_t *output, int8_t cos_bit,

                const int8_t *stage_range);

void av1_iadst16(const int32_t *input, int32_t *output, int8_t cos_bit,

                 const int8_t *stage_range);

void av1_iidentity4_c(const int32_t *input, int32_t *output, int8_t cos_bit,

                      const int8_t *stage_range);

void av1_iidentity8_c(const int32_t *input, int32_t *output, int8_t cos_bit,

                      const int8_t *stage_range);

void av1_iidentity16_c(const int32_t *input, int32_t *output, int8_t cos_bit,

                       const int8_t *stage_range);

void av1_iidentity32_c(const int32_t *input, int32_t *output, int8_t cos_bit,

                       const int8_t *stage_range);

#ifdef __cplusplus

#endif

#endif  // AOM_AV1_COMMON_AV1_INV_TXFM1D_H_