tableprint.h 4.5 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134
  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. #ifndef AVCODEC_TABLEPRINT_H
  23. #define AVCODEC_TABLEPRINT_H
  24. #include <inttypes.h>
  25. #include <stdio.h>
  26. #include "libavutil/common.h"
  27. #define WRITE_1D_FUNC_ARGV(type, linebrk, fmtstr, ...)\
  28. void write_##type##_array(const type *data, int len)\
  29. {\
  30. int i;\
  31. printf(" ");\
  32. for (i = 0; i < len - 1; i++) {\
  33. printf(" "fmtstr",", __VA_ARGS__);\
  34. if ((i & linebrk) == linebrk) printf("\n ");\
  35. }\
  36. printf(" "fmtstr"\n", __VA_ARGS__);\
  37. }
  38. #define WRITE_1D_FUNC(type, fmtstr, linebrk)\
  39. WRITE_1D_FUNC_ARGV(type, linebrk, fmtstr, data[i])
  40. #define WRITE_2D_FUNC(type)\
  41. void write_##type##_2d_array(const void *arg, int len, int len2)\
  42. {\
  43. const type *data = arg;\
  44. int i;\
  45. printf(" {\n");\
  46. for (i = 0; i < len; i++) {\
  47. write_##type##_array(data + i * len2, len2);\
  48. printf(i == len - 1 ? " }\n" : " }, {\n");\
  49. }\
  50. }
  51. /**
  52. * @name Predefined functions for printing tables
  53. *
  54. * @{
  55. */
  56. void write_int8_t_array (const int8_t *, int);
  57. void write_uint8_t_array (const uint8_t *, int);
  58. void write_uint16_t_array (const uint16_t *, int);
  59. void write_uint32_t_array (const uint32_t *, int);
  60. void write_int32_t_array (const int32_t *, int);
  61. void write_float_array (const float *, int);
  62. void write_int8_t_2d_array (const void *, int, int);
  63. void write_uint8_t_2d_array (const void *, int, int);
  64. void write_uint32_t_2d_array(const void *, int, int);
  65. void write_float_2d_array (const void *, int, int);
  66. /** @} */ // end of printfuncs group
  67. /*
  68. * MSVC doesn't have %zu, since it was introduced in C99,
  69. * but has its own %Iu for printing size_t values.
  70. */
  71. #if defined(_MSC_VER)
  72. #define FMT "Iu"
  73. #else
  74. #define FMT "zu"
  75. #endif
  76. #define WRITE_ARRAY_ALIGNED(prefix, align, type, name) \
  77. do { \
  78. const size_t array_size = FF_ARRAY_ELEMS(name); \
  79. printf(prefix" DECLARE_ALIGNED("#align", " \
  80. #type", "#name")[%"FMT"] = {\n", \
  81. array_size); \
  82. write_##type##_array(name, array_size); \
  83. printf("};\n"); \
  84. } while(0)
  85. #define WRITE_ARRAY(prefix, type, name) \
  86. do { \
  87. const size_t array_size = FF_ARRAY_ELEMS(name); \
  88. printf(prefix" "#type" "#name"[%"FMT"] = {\n", \
  89. array_size); \
  90. write_##type##_array(name, array_size); \
  91. printf("};\n"); \
  92. } while(0)
  93. #define WRITE_2D_ARRAY(prefix, type, name) \
  94. do { \
  95. const size_t array_size1 = FF_ARRAY_ELEMS(name); \
  96. const size_t array_size2 = FF_ARRAY_ELEMS(name[0]); \
  97. printf(prefix" "#type" "#name"[%"FMT"][%"FMT"] = {\n", \
  98. array_size1, array_size2 ); \
  99. write_##type##_2d_array(name, array_size1, array_size2); \
  100. printf("};\n"); \
  101. } while(0)
  102. WRITE_1D_FUNC(int8_t, "%3"PRIi8, 15)
  103. WRITE_1D_FUNC(uint8_t, "0x%02"PRIx8, 15)
  104. WRITE_1D_FUNC(uint16_t, "0x%08"PRIx16, 7)
  105. WRITE_1D_FUNC(int16_t, "%5"PRIi16, 7)
  106. WRITE_1D_FUNC(uint32_t, "0x%08"PRIx32, 7)
  107. WRITE_1D_FUNC(int32_t, "0x%08"PRIx32, 7)
  108. WRITE_1D_FUNC(float, "%.18e", 3)
  109. WRITE_2D_FUNC(int8_t)
  110. WRITE_2D_FUNC(uint8_t)
  111. WRITE_2D_FUNC(uint32_t)
  112. WRITE_2D_FUNC(float)
  113. static inline void write_fileheader(void)
  114. {
  115. printf("/* This file was automatically generated. */\n");
  116. printf("#include <stdint.h>\n");
  117. }
  118. #endif /* AVCODEC_TABLEPRINT_H */