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local_proto.h

local_proto.h 2.3 KB
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  1. #ifndef __LOCAL_PROTO_H__
    2. 

  2. #define __LOCAL_PROTO_H__
    3. 

  3. 

  4. #include <gdal.h>
    5. 

  5. #include <math.h>
    6. 

  6. /* is it safe to #include <float.h> ? */
    7. 

  7. 

  8. /* range limits */
    9. 

  9. /*
    10. 

  10.   GDAL data type               minimum          maximum
    11. 

  11. 

  12.   Byte                               0              255
    13. 

  13.   UInt16                             0           65,535
    14. 

  14.   Int16, CInt16                -32,768           32,767
    15. 

  15.   UInt32                             0    4,294,967,295
    16. 

  16.   Int32, CInt32         -2,147,483,648    2,147,483,647
    17. 

  17.   Float32, CFloat32            -3.4E38           3.4E38
    18. 

  18.   Float64, CFloat64          -1.79E308         1.79E308
    19. 

  19. */
    20. 

  20. 

  21. /* copied from limits.h, checked against gdal-1.6.0/gcore/gdalrasterband.cpp */
    22. 

  22. #define TYPE_BYTE_MIN		0
    23. 

  23. #define TYPE_BYTE_MAX		255
    24. 

  24. #define TYPE_INT16_MIN		(-32768)
    25. 

  25. #define TYPE_INT16_MAX		32767
    26. 

  26. #define TYPE_UINT16_MIN		0
    27. 

  27. #define TYPE_UINT16_MAX		65535
    28. 

  28. #define TYPE_UINT32_MIN		0
    29. 

  29. #define TYPE_UINT32_MAX		4294967295U
    30. 

  30. #define TYPE_INT32_MIN		(-TYPE_INT32_MAX - 1)
    31. 

  31. #define TYPE_INT32_MAX		2147483647
    32. 

  32. 

  33. /* new systems: FLT_MAX, DBL_MAX, old systems: MAXFLOAT, MAXDOUBLE, fallback: 3.4E38 and 1.79E308f */
    34. 

  34. #ifdef FLT_MAX
    35. 

  35. #define TYPE_FLOAT32_MIN	(-FLT_MAX)
    36. 

  36. #define TYPE_FLOAT32_MAX	FLT_MAX
    37. 

  37. #elif defined(MAX_FLOAT)
    38. 

  38. #define TYPE_FLOAT32_MIN	(-MAXFLOAT)
    39. 

  39. #define TYPE_FLOAT32_MAX	MAXFLOAT
    40. 

  40. #else
    41. 

  41. /* formula from float.h */
    42. 

  42. #define TYPE_FLOAT32_MIN	(float)(-((1 + (1 - pow(2, -23))) * pow(2, 127)))
    43. 

  43. #define TYPE_FLOAT32_MAX	(float)((1 + (1 - pow(2, -23))) * pow(2, 127))
    44. 

  44. #endif
    45. 

  45. 

  46. #ifdef DBL_MAX
    47. 

  47. #define TYPE_FLOAT64_MIN	(-DBL_MAX)
    48. 

  48. #define TYPE_FLOAT64_MAX	DBL_MAX
    49. 

  49. #elif defined(MAXDOUBLE)
    50. 

  50. #define TYPE_FLOAT64_MIN	(-MAXDOUBLE)
    51. 

  51. #define TYPE_FLOAT64_MAX	MAXDOUBLE
    52. 

  52. #else
    53. 

  53. /* formula from float.h */
    54. 

  54. #define TYPE_FLOAT64_MIN	(-((1 + (1 - pow(2, -52))) * pow(2, 1023)))
    55. 

  55. #define TYPE_FLOAT64_MAX	((1 + (1 - pow(2, -52))) * pow(2, 1023))
    56. 

  56. #endif
    57. 

  57. 

  58. #define GRASS_MAX_COLORS TYPE_UINT16_MAX    /* ok? */
    59. 

  59. 

  60. /* export_band.c */
    61. 

  61. int export_band(GDALDatasetH, int, const char *, 
    62. 

  62. 		const char *, struct Cell_head *, RASTER_MAP_TYPE, 
    63. 

  63. 		double, int, int, int);
    64. 

  64. int exact_checks(GDALDataType, const char *, const char *,
    65. 

  65.                  struct Cell_head *, RASTER_MAP_TYPE, double,
    66. 

  66. 		 const char *, int);
    67. 

  67. 

  68. /* attr.c */
    69. 

  69. int export_attr(GDALDatasetH, int, const char *, 
    70. 

  70. 		const char *, RASTER_MAP_TYPE);
    71. 

  71. 

  72. #endif /* __LOCAL_PROTO_H__ */
    73. 

  73.