1/*
2 * Generate a file for hardcoded tables
3 *
4 * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23#ifndef AVCODEC_TABLEPRINT_H
24#define AVCODEC_TABLEPRINT_H
25
26#include <inttypes.h>
27#include <stdio.h>
28
29#include "libavutil/common.h"
30
31#define WRITE_1D_FUNC_ARGV(type, linebrk, fmtstr, ...)\
32void write_##type##_array(const type *data, int len)\
33{\
34    int i;\
35    printf("   ");\
36    for (i = 0; i < len - 1; i++) {\
37       printf(" "fmtstr",", __VA_ARGS__);\
38       if ((i & linebrk) == linebrk) printf("\n   ");\
39    }\
40    printf(" "fmtstr"\n", __VA_ARGS__);\
41}
42
43#define WRITE_1D_FUNC(type, fmtstr, linebrk)\
44    WRITE_1D_FUNC_ARGV(type, linebrk, fmtstr, data[i])
45
46#define WRITE_2D_FUNC(type)\
47void write_##type##_2d_array(const void *arg, int len, int len2)\
48{\
49    const type *data = arg;\
50    int i;\
51    printf("    {\n");\
52    for (i = 0; i < len; i++) {\
53        write_##type##_array(data + i * len2, len2);\
54        printf(i == len - 1 ? "    }\n" : "    }, {\n");\
55    }\
56}
57
58/**
59 * @name Predefined functions for printing tables
60 *
61 * @{
62 */
63void write_int8_t_array     (const int8_t   *, int);
64void write_uint8_t_array    (const uint8_t  *, int);
65void write_uint16_t_array   (const uint16_t *, int);
66void write_uint32_t_array   (const uint32_t *, int);
67void write_int32_t_array    (const int32_t  *, int);
68void write_float_array      (const float    *, int);
69void write_int8_t_2d_array  (const void *, int, int);
70void write_uint8_t_2d_array (const void *, int, int);
71void write_uint32_t_2d_array(const void *, int, int);
72void write_float_2d_array   (const void *, int, int);
73/** @} */ // end of printfuncs group
74
75/*
76 * MSVC doesn't have %zu, since it was introduced in C99,
77 * but has its own %Iu for printing size_t values.
78 */
79#if defined(_MSC_VER)
80#define FMT "Iu"
81#else
82#define FMT "zu"
83#endif
84
85#define WRITE_ARRAY_ALIGNED(prefix, align, type, name)  \
86    do {                                                \
87        const size_t array_size = FF_ARRAY_ELEMS(name); \
88        printf(prefix" DECLARE_ALIGNED("#align", "      \
89               #type", "#name")[%"FMT"] = {\n",         \
90               array_size);                             \
91        write_##type##_array(name, array_size);         \
92        printf("};\n");                                 \
93    } while(0)
94
95#define WRITE_ARRAY(prefix, type, name)                 \
96    do {                                                \
97        const size_t array_size = FF_ARRAY_ELEMS(name); \
98        printf(prefix" "#type" "#name"[%"FMT"] = {\n",  \
99               array_size);                             \
100        write_##type##_array(name, array_size);         \
101        printf("};\n");                                 \
102    } while(0)
103
104#define WRITE_2D_ARRAY(prefix, type, name)                              \
105    do {                                                                \
106        const size_t array_size1 = FF_ARRAY_ELEMS(name);                \
107        const size_t array_size2 = FF_ARRAY_ELEMS(name[0]);             \
108        printf(prefix" "#type" "#name"[%"FMT"][%"FMT"] = {\n",          \
109               array_size1, array_size2 );                              \
110        write_##type##_2d_array(name, array_size1, array_size2);        \
111        printf("};\n");                                                 \
112    } while(0)
113
114
115WRITE_1D_FUNC(int8_t,   "%3"PRIi8, 15)
116WRITE_1D_FUNC(uint8_t,  "0x%02"PRIx8, 15)
117WRITE_1D_FUNC(uint16_t, "0x%08"PRIx16, 7)
118WRITE_1D_FUNC(int16_t,  "%5"PRIi16, 7)
119WRITE_1D_FUNC(uint32_t, "0x%08"PRIx32, 7)
120WRITE_1D_FUNC(int32_t,  "0x%08"PRIx32, 7)
121WRITE_1D_FUNC(float,    "%.18e", 3)
122
123WRITE_2D_FUNC(int8_t)
124WRITE_2D_FUNC(uint8_t)
125WRITE_2D_FUNC(uint32_t)
126WRITE_2D_FUNC(float)
127
128static inline void write_fileheader(void)
129{
130    printf("/* This file was automatically generated. */\n");
131    printf("#include <stdint.h>\n");
132}
133
134#endif /* AVCODEC_TABLEPRINT_H */
135