1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/****************************************************************************
*
* config/public-macros.h
*
* Define a set of compiler macros used in public FreeType headers.
*
* Copyright (C) 2020 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/* The definitions in this file are used by the public FreeType headers,
* and thus should be considered part of the public API.
*
* Other compiler-specific macro definitions that are not exposed by the
* FreeType API should go into include/freetype/internal/compiler-macros.h
* instead.
*/
#ifndef FREETYPE_CONFIG_PUBLIC_MACROS_H_
#define FREETYPE_CONFIG_PUBLIC_MACROS_H_
/* FT_BEGIN_HEADER and FT_END_HEADER might have already been defined by
* <freetype/config/ftheader.h>, but we don't want to include this header
* here, so redefine the macros here only when needed. Their definition is
* very stable, so keeping them in sync with the ones in the header should
* not be a maintenance issue.
*/
#ifndef FT_BEGIN_HEADER
# ifdef __cplusplus
# define FT_BEGIN_HEADER extern "C" {
# else
# define FT_BEGIN_HEADER /* nothing */
# endif
#endif /* FT_END_HEADER */
#ifndef FT_END_HEADER
# ifdef __cplusplus
# define FT_END_HEADER }
# else
# define FT_END_HEADER /* nothing */
# endif
#endif /* FT_END_HEADER */
FT_BEGIN_HEADER
/* Mark a function declaration as public. This ensures it will be properly
* exported to client code. Place this before a function declaration.
*
* NOTE: This macro should be considered an internal implementation detail, and
* not part of the FreeType API. It is only defined here because it is needed
* by FT_EXPORT()
*/
#if defined(_WIN32)
# if defined(FT2_BUILD_LIBRARY) && defined( DLL_EXPORT )
# define FT_PUBLIC_FUNCTION_ATTRIBUTE __declspec( dllexport )
# elif defined( DLL_IMPORT )
# define FT_PUBLIC_FUNCTION_ATTRIBUTE __declspec( dllimport )
# endif
#elif (defined(__GNUC__) && __GNUC__ >= 4) || defined(__clang__)
# define FT_PUBLIC_FUNCTION_ATTRIBUTE __attribute__((visibility("default")))
#elif defined(__SUNPRO_C) && __SUNPRO_C >= 0x550
# define FT_PUBLIC_FUNCTION_ATTRIBUTE __global
#endif
#ifndef FT_PUBLIC_FUNCTION_ATTRIBUTE
# define FT_PUBLIC_FUNCTION_ATTRIBUTE /* nothing */
#endif
/* Define a public FreeType API function. This ensures it is properly exported
* or imported at build time. The macro parameter is the function's return type
* as in:
*
* FT_EXPORT( FT_Bool ) FT_Object_Method( FT_Object obj, ... );
*
* NOTE: This requires that all FT_EXPORT() uses are inside FT_BEGIN_HEADER ..
* FT_END_HEADER blocks. This guarantees that the functions are exported with
* C linkage, even when the header is included by a C++ source file.
*/
#define FT_EXPORT( x ) FT_PUBLIC_FUNCTION_ATTRIBUTE extern x
/* `FT_UNUSED` indicates that a given parameter is not used -- */
/* this is only used to get rid of unpleasant compiler warnings. */
/* */
/* Technically, this was not meant to be part of the public API, */
/* but some third-party code depends on it. */
/* */
#ifndef FT_UNUSED
#define FT_UNUSED( arg ) ( (arg) = (arg) )
#endif
FT_END_HEADER
#endif /* FREETYPE_CONFIG_PUBLIC_MACROS_H_ */
|
