1 /*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #ifndef AOM_AV1_COMMON_AV1_INV_TXFM1D_H_
13 #define AOM_AV1_COMMON_AV1_INV_TXFM1D_H_
14
15 #include "av1/common/av1_txfm.h"
16
17 #ifdef __cplusplus
18 extern "C" {
19 #endif
20
clamp_value(int32_t value,int8_t bit)21 static INLINE int32_t clamp_value(int32_t value, int8_t bit) {
22 if (bit <= 0) return value; // Do nothing for invalid clamp bit.
23 const int64_t max_value = (1LL << (bit - 1)) - 1;
24 const int64_t min_value = -(1LL << (bit - 1));
25 return (int32_t)clamp64(value, min_value, max_value);
26 }
27
clamp_buf(int32_t * buf,int32_t size,int8_t bit)28 static INLINE void clamp_buf(int32_t *buf, int32_t size, int8_t bit) {
29 for (int i = 0; i < size; ++i) buf[i] = clamp_value(buf[i], bit);
30 }
31
32 void av1_idct4_new(const int32_t *input, int32_t *output, int8_t cos_bit,
33 const int8_t *stage_range);
34 void av1_idct8_new(const int32_t *input, int32_t *output, int8_t cos_bit,
35 const int8_t *stage_range);
36 void av1_idct16_new(const int32_t *input, int32_t *output, int8_t cos_bit,
37 const int8_t *stage_range);
38 void av1_idct32_new(const int32_t *input, int32_t *output, int8_t cos_bit,
39 const int8_t *stage_range);
40 void av1_idct64_new(const int32_t *input, int32_t *output, int8_t cos_bit,
41 const int8_t *stage_range);
42 void av1_iadst4_new(const int32_t *input, int32_t *output, int8_t cos_bit,
43 const int8_t *stage_range);
44 void av1_iadst8_new(const int32_t *input, int32_t *output, int8_t cos_bit,
45 const int8_t *stage_range);
46 void av1_iadst16_new(const int32_t *input, int32_t *output, int8_t cos_bit,
47 const int8_t *stage_range);
48 void av1_iidentity4_c(const int32_t *input, int32_t *output, int8_t cos_bit,
49 const int8_t *stage_range);
50 void av1_iidentity8_c(const int32_t *input, int32_t *output, int8_t cos_bit,
51 const int8_t *stage_range);
52 void av1_iidentity16_c(const int32_t *input, int32_t *output, int8_t cos_bit,
53 const int8_t *stage_range);
54 void av1_iidentity32_c(const int32_t *input, int32_t *output, int8_t cos_bit,
55 const int8_t *stage_range);
56
57 #ifdef __cplusplus
58 }
59 #endif
60
61 #endif // AOM_AV1_COMMON_AV1_INV_TXFM1D_H_
62