1 /* Copyright  (C) 2010-2018 The RetroArch team
2  *
3  * ---------------------------------------------------------------------------------------
4  * The following license statement only applies to this file (msvc.h).
5  * ---------------------------------------------------------------------------------------
6  *
7  * Permission is hereby granted, free of charge,
8  * to any person obtaining a copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation the rights to
10  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
11  * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
16  * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
19  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21  */
22 
23 #ifndef __LIBRETRO_SDK_COMPAT_MSVC_H
24 #define __LIBRETRO_SDK_COMPAT_MSVC_H
25 
26 #ifdef _MSC_VER
27 
28 #ifdef __cplusplus
29 #include <complex>
30 extern "C"  {
31 #endif
32 
33 /* Pre-MSVC 2015 compilers don't implement snprintf in a cross-platform manner. */
34 #if _MSC_VER < 1900
35    #include <stdlib.h>
36    #ifndef snprintf
37       #define snprintf c99_snprintf_retro__
38    #endif
39 
40    int c99_snprintf_retro__(char *outBuf, size_t size, const char *format, ...);
41 #endif
42 
43 /* Pre-MSVC 2008 compilers don't implement vsnprintf in a cross-platform manner? Not sure about this one. */
44 #if _MSC_VER < 1500
45    #include <stdarg.h>
46    #include <stdlib.h>
47    #ifndef vsnprintf
48       #define vsnprintf c99_vsnprintf_retro__
49    #endif
50    int c99_vsnprintf_retro__(char *outBuf, size_t size, const char *format, va_list ap);
51 #endif
52 
53 #ifdef __cplusplus
54 }
55 #endif
56 
57 #undef UNICODE /* Do not bother with UNICODE at this time. */
58 #include <direct.h>
59 #include <stddef.h>
60 
61 #define _USE_MATH_DEFINES
62 #include <math.h>
63 
64 /* Python headers defines ssize_t and sets HAVE_SSIZE_T.
65  * Cannot duplicate these efforts.
66  */
67 #ifndef HAVE_SSIZE_T
68 #if defined(_WIN64)
69 typedef __int64 ssize_t;
70 #elif defined(_WIN32)
71 typedef int ssize_t;
72 #endif
73 #endif
74 
75 #define mkdir(dirname, unused) _mkdir(dirname)
76 #define strtoull _strtoui64
77 #undef strcasecmp
78 #define strcasecmp _stricmp
79 #undef strncasecmp
80 #define strncasecmp _strnicmp
81 
82 /* Disable some of the annoying warnings. */
83 #pragma warning(disable : 4800)
84 #pragma warning(disable : 4805)
85 #pragma warning(disable : 4244)
86 #pragma warning(disable : 4305)
87 #pragma warning(disable : 4146)
88 #pragma warning(disable : 4267)
89 #pragma warning(disable : 4723)
90 #pragma warning(disable : 4996)
91 
92 /* roundf and va_copy is available since MSVC 2013 */
93 #if _MSC_VER < 1800
94 #define roundf(in) (in >= 0.0f ? floorf(in + 0.5f) : ceilf(in - 0.5f))
95 #define va_copy(x, y) ((x) = (y))
96 #endif
97 
98 #if _MSC_VER <= 1310
99    #ifndef __cplusplus
100       /* VC6 math.h doesn't define some functions when in C mode.
101        * Trying to define a prototype gives "undefined reference".
102        * But providing an implementation then gives "function already has body".
103        * So the equivalent of the implementations from math.h are used as
104        * defines here instead, and it seems to work.
105        */
106       #define cosf(x) ((float)cos((double)x))
107       #define powf(x, y) ((float)pow((double)x, (double)y))
108       #define sinf(x) ((float)sin((double)x))
109       #define ceilf(x) ((float)ceil((double)x))
110       #define floorf(x) ((float)floor((double)x))
111       #define sqrtf(x) ((float)sqrt((double)x))
112       #define fabsf(x)    ((float)fabs((double)(x)))
113    #endif
114 
115    #ifndef _strtoui64
116       #define _strtoui64(x, y, z) (_atoi64(x))
117    #endif
118 
119 #endif
120 
121 #ifndef PATH_MAX
122 #define PATH_MAX _MAX_PATH
123 #endif
124 
125 #ifndef SIZE_MAX
126 #define SIZE_MAX _UI32_MAX
127 #endif
128 
129 #endif
130 #endif
131