1 /* Copyright  (C) 2010-2020 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 extern "C"  {
30 #endif
31 
32 /* Pre-MSVC 2015 compilers don't implement snprintf, vsnprintf in a cross-platform manner. */
33 #if _MSC_VER < 1900
34    #include <stdio.h>
35    #include <stdarg.h>
36    #include <stdlib.h>
37 
38    #ifndef snprintf
39       #define snprintf c99_snprintf_retro__
40    #endif
41    int c99_snprintf_retro__(char *outBuf, size_t size, const char *format, ...);
42 
43    #ifndef vsnprintf
44       #define vsnprintf c99_vsnprintf_retro__
45    #endif
46    int c99_vsnprintf_retro__(char *outBuf, size_t size, const char *format, va_list ap);
47 #endif
48 
49 #ifdef __cplusplus
50 }
51 #endif
52 
53 #undef UNICODE /* Do not bother with UNICODE at this time. */
54 #include <direct.h>
55 #include <stddef.h>
56 
57 #define _USE_MATH_DEFINES
58 #include <math.h>
59 
60 /* Python headers defines ssize_t and sets HAVE_SSIZE_T.
61  * Cannot duplicate these efforts.
62  */
63 #ifndef HAVE_SSIZE_T
64 #if defined(_WIN64)
65 typedef __int64 ssize_t;
66 #elif defined(_WIN32)
67 typedef int ssize_t;
68 #endif
69 #endif
70 
71 #define mkdir(dirname, unused) _mkdir(dirname)
72 #define strtoull _strtoui64
73 #undef strcasecmp
74 #define strcasecmp _stricmp
75 #undef strncasecmp
76 #define strncasecmp _strnicmp
77 
78 /* Disable some of the annoying warnings. */
79 #pragma warning(disable : 4800)
80 #pragma warning(disable : 4805)
81 #pragma warning(disable : 4244)
82 #pragma warning(disable : 4305)
83 #pragma warning(disable : 4146)
84 #pragma warning(disable : 4267)
85 #pragma warning(disable : 4723)
86 #pragma warning(disable : 4996)
87 
88 /* roundf and va_copy is available since MSVC 2013 */
89 #if _MSC_VER < 1800
90 #define roundf(in) (in >= 0.0f ? floorf(in + 0.5f) : ceilf(in - 0.5f))
91 #define va_copy(x, y) ((x) = (y))
92 #endif
93 
94 #if _MSC_VER <= 1310
95    #ifndef __cplusplus
96       /* VC6 math.h doesn't define some functions when in C mode.
97        * Trying to define a prototype gives "undefined reference".
98        * But providing an implementation then gives "function already has body".
99        * So the equivalent of the implementations from math.h are used as
100        * defines here instead, and it seems to work.
101        */
102       #define cosf(x) ((float)cos((double)x))
103       #define powf(x, y) ((float)pow((double)x, (double)y))
104       #define sinf(x) ((float)sin((double)x))
105       #define ceilf(x) ((float)ceil((double)x))
106       #define floorf(x) ((float)floor((double)x))
107       #define sqrtf(x) ((float)sqrt((double)x))
108       #define fabsf(x)    ((float)fabs((double)(x)))
109    #endif
110 
111    #ifndef _strtoui64
112       #define _strtoui64(x, y, z) (_atoi64(x))
113    #endif
114 
115 #endif
116 
117 #ifndef PATH_MAX
118 #define PATH_MAX _MAX_PATH
119 #endif
120 
121 #ifndef SIZE_MAX
122 #define SIZE_MAX _UI32_MAX
123 #endif
124 
125 #endif
126 #endif
127