1 /******************************************************************************
2  *                                                                            *
3  * Copyright (C) 2018 The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  *****************************************************************************
18  * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
19 */
20 #ifndef IXHEAACD_AAC_IMDCT_H
21 #define IXHEAACD_AAC_IMDCT_H
22 
23 WORD32 ixheaacd_inverse_transform(
24     WORD32 spec_data[], WORD32 scratch[],
25     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD32 expo,
26     WORD32 npoints);
27 
28 VOID ixheaacd_post_twiddle_dec(WORD32 out_ptr[], WORD32 spec_data[],
29                                ia_aac_dec_imdct_tables_struct *ptr_imdct_tables,
30                                WORD32 npoints);
31 
32 VOID ixheaacd_post_twiddle_armv7(
33     WORD32 out_ptr[], WORD32 spec_data[],
34     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD32 npoints);
35 
36 VOID ixheaacd_post_twiddle_armv8(
37     WORD32 out_ptr[], WORD32 spec_data[],
38     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD32 npoints);
39 
40 VOID ixheaacd_post_twid_overlap_add_dec(
41     WORD16 pcm_out[], WORD32 spec_data[],
42     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD npoints,
43     WORD32 *ptr_overlap_buf, WORD16 q_shift, const WORD16 *window,
44     WORD16 ch_fac);
45 
46 VOID ixheaacd_post_twid_overlap_add_armv7(
47     WORD16 pcm_out[], WORD32 spec_data[],
48     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD npoints,
49     WORD32 *ptr_overlap_buf, WORD16 q_shift, const WORD16 *window,
50     WORD16 ch_fac);
51 
52 VOID ixheaacd_post_twid_overlap_add_armv8(
53     WORD16 pcm_out[], WORD32 spec_data[],
54     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD npoints,
55     WORD32 *ptr_overlap_buf, WORD16 q_shift, const WORD16 *window,
56     WORD16 ch_fac);
57 
58 VOID ixheaacd_pretwiddle_compute_dec(
59     WORD32 *spec_data1, WORD32 *spec_data2, WORD32 *out_ptr,
60     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD npoints4,
61     WORD32 neg_expo);
62 
63 VOID ixheaacd_pretwiddle_compute_armv7(
64     WORD32 *spec_data1, WORD32 *spec_data2, WORD32 *out_ptr,
65     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD npoints4,
66     WORD32 neg_expo);
67 
68 VOID ixheaacd_pretwiddle_compute_armv8(
69     WORD32 *spec_data1, WORD32 *spec_data2, WORD32 *out_ptr,
70     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD npoints4,
71     WORD32 neg_expo);
72 
73 VOID ixheaacd_imdct_using_fft_dec(
74     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD32 npoints,
75     WORD32 *ptr_x, WORD32 *ptr_y);
76 
77 VOID ixheaacd_imdct_using_fft_armv7(
78     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD32 npoints,
79     WORD32 *ptr_x, WORD32 *ptr_y);
80 
81 VOID ixheaacd_imdct_using_fft_armv8(
82     ia_aac_dec_imdct_tables_struct *ptr_imdct_tables, WORD32 npoints,
83     WORD32 *ptr_x, WORD32 *ptr_y);
84 
85 VOID ixheaacd_fft_480_ld(WORD32 *inp, WORD32 *op,
86                          ia_aac_dec_imdct_tables_struct *imdct_tables_ptr);
87 
88 VOID ixheaacd_pre_twiddle(WORD32 *xptr, WORD32 *data, WORD32 n,
89                           WORD32 *cos_array_ptr, WORD32 neg_expo);
90 
91 VOID ixheaacd_post_twiddle_ld(WORD32 out[], WORD32 x[],
92                               const WORD32 *cos_sin_ptr, WORD m);
93 
94 VOID ixheaacd_post_twiddle_eld(WORD32 out[], WORD32 x[],
95                                const WORD32 *cos_sin_ptr, WORD m);
96 
97 VOID ixheaacd_fft32x32_ld_dec(ia_aac_dec_imdct_tables_struct *imdct_tables_ptr,
98                               WORD32 npoints, WORD32 *ptr_x, WORD32 *ptr_y);
99 
100 VOID ixheaacd_fft32x32_ld2_armv7(
101     ia_aac_dec_imdct_tables_struct *imdct_tables_ptr, WORD32 npoints,
102     WORD32 *ptr_x, WORD32 *ptr_y);
103 
104 VOID ixheaacd_fft32x32_ld2_armv8(
105     ia_aac_dec_imdct_tables_struct *imdct_tables_ptr, WORD32 npoints,
106     WORD32 *ptr_x, WORD32 *ptr_y);
107 
108 WORD16 ixheaacd_neg_expo_inc_dec(WORD16 neg_expo);
109 
110 WORD16 ixheaacd_neg_expo_inc_arm(WORD16 neg_expo);
111 
112 VOID ixheaacd_rearrange_dec(WORD32 *ip, WORD32 *op, WORD32 mdct_len_2,
113                             UWORD8 *re_arr_tab);
114 
115 VOID ia_aac_ld_dec_rearrange_armv7(WORD32 *ip, WORD32 *op, WORD32 mdct_len_2,
116                                    UWORD8 *re_arr_tab);
117 
118 VOID ixheaacd_fft_15_ld_dec(WORD32 *inp, WORD32 *op, WORD32 *fft3out,
119                             UWORD8 *re_arr_tab_sml_240_ptr);
120 
121 VOID ixheaacd_fft_15_ld_armv7(WORD32 *inp, WORD32 *op, WORD32 *fft3out,
122                               UWORD8 *re_arr_tab_sml_240_ptr);
123 
124 VOID ixheaacd_inverse_transform_512(
125     WORD32 data[], WORD32 temp[], WORD32 *imdct_scale, WORD32 *cos_sin_ptr,
126     ia_aac_dec_imdct_tables_struct *imdct_tables_ptr, WORD32 object_type);
127 
128 VOID ixheaacd_mdct_480_ld(WORD32 *inp, WORD32 *scratch, WORD32 *mdct_scale,
129                           WORD32 mdct_flag,
130                           ia_aac_dec_imdct_tables_struct *imdct_tables_ptr,
131                           WORD32 object_type);
132 #endif
133