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author | Star Rauchenberger <fefferburbia@gmail.com> | 2022-03-20 13:03:18 -0400 |
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committer | Star Rauchenberger <fefferburbia@gmail.com> | 2022-03-20 13:03:18 -0400 |
commit | 304bab2aced9cae51d2e4c09f3d9e06c66ff175d (patch) | |
tree | 8397f81b893feb1cf624eee49c4fb01297aa08ad /vendor/SDL2/include/SDL_test_random.h | |
parent | ba350484072c78e5e1a765370c22dbd76474aa39 (diff) | |
download | ether-304bab2aced9cae51d2e4c09f3d9e06c66ff175d.tar.gz ether-304bab2aced9cae51d2e4c09f3d9e06c66ff175d.tar.bz2 ether-304bab2aced9cae51d2e4c09f3d9e06c66ff175d.zip |
we can build a window app!
build type must be set to Release or it's horribly slow, and fullscreen does not work
Diffstat (limited to 'vendor/SDL2/include/SDL_test_random.h')
-rw-r--r-- | vendor/SDL2/include/SDL_test_random.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/vendor/SDL2/include/SDL_test_random.h b/vendor/SDL2/include/SDL_test_random.h new file mode 100644 index 0000000..b1d6060 --- /dev/null +++ b/vendor/SDL2/include/SDL_test_random.h | |||
@@ -0,0 +1,115 @@ | |||
1 | /* | ||
2 | Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org> | ||
4 | |||
5 | This software is provided 'as-is', without any express or implied | ||
6 | warranty. In no event will the authors be held liable for any damages | ||
7 | arising from the use of this software. | ||
8 | |||
9 | Permission is granted to anyone to use this software for any purpose, | ||
10 | including commercial applications, and to alter it and redistribute it | ||
11 | freely, subject to the following restrictions: | ||
12 | |||
13 | 1. The origin of this software must not be misrepresented; you must not | ||
14 | claim that you wrote the original software. If you use this software | ||
15 | in a product, an acknowledgment in the product documentation would be | ||
16 | appreciated but is not required. | ||
17 | 2. Altered source versions must be plainly marked as such, and must not be | ||
18 | misrepresented as being the original software. | ||
19 | 3. This notice may not be removed or altered from any source distribution. | ||
20 | */ | ||
21 | |||
22 | /** | ||
23 | * \file SDL_test_random.h | ||
24 | * | ||
25 | * Include file for SDL test framework. | ||
26 | * | ||
27 | * This code is a part of the SDL2_test library, not the main SDL library. | ||
28 | */ | ||
29 | |||
30 | /* | ||
31 | |||
32 | A "32-bit Multiply with carry random number generator. Very fast. | ||
33 | Includes a list of recommended multipliers. | ||
34 | |||
35 | multiply-with-carry generator: x(n) = a*x(n-1) + carry mod 2^32. | ||
36 | period: (a*2^31)-1 | ||
37 | |||
38 | */ | ||
39 | |||
40 | #ifndef SDL_test_random_h_ | ||
41 | #define SDL_test_random_h_ | ||
42 | |||
43 | #include "begin_code.h" | ||
44 | /* Set up for C function definitions, even when using C++ */ | ||
45 | #ifdef __cplusplus | ||
46 | extern "C" { | ||
47 | #endif | ||
48 | |||
49 | /* --- Definitions */ | ||
50 | |||
51 | /* | ||
52 | * Macros that return a random number in a specific format. | ||
53 | */ | ||
54 | #define SDLTest_RandomInt(c) ((int)SDLTest_Random(c)) | ||
55 | |||
56 | /* | ||
57 | * Context structure for the random number generator state. | ||
58 | */ | ||
59 | typedef struct { | ||
60 | unsigned int a; | ||
61 | unsigned int x; | ||
62 | unsigned int c; | ||
63 | unsigned int ah; | ||
64 | unsigned int al; | ||
65 | } SDLTest_RandomContext; | ||
66 | |||
67 | |||
68 | /* --- Function prototypes */ | ||
69 | |||
70 | /** | ||
71 | * \brief Initialize random number generator with two integers. | ||
72 | * | ||
73 | * Note: The random sequence of numbers returned by ...Random() is the | ||
74 | * same for the same two integers and has a period of 2^31. | ||
75 | * | ||
76 | * \param rndContext pointer to context structure | ||
77 | * \param xi integer that defines the random sequence | ||
78 | * \param ci integer that defines the random sequence | ||
79 | * | ||
80 | */ | ||
81 | void SDLTest_RandomInit(SDLTest_RandomContext * rndContext, unsigned int xi, | ||
82 | unsigned int ci); | ||
83 | |||
84 | /** | ||
85 | * \brief Initialize random number generator based on current system time. | ||
86 | * | ||
87 | * \param rndContext pointer to context structure | ||
88 | * | ||
89 | */ | ||
90 | void SDLTest_RandomInitTime(SDLTest_RandomContext *rndContext); | ||
91 | |||
92 | |||
93 | /** | ||
94 | * \brief Initialize random number generator based on current system time. | ||
95 | * | ||
96 | * Note: ...RandomInit() or ...RandomInitTime() must have been called | ||
97 | * before using this function. | ||
98 | * | ||
99 | * \param rndContext pointer to context structure | ||
100 | * | ||
101 | * \returns a random number (32bit unsigned integer) | ||
102 | * | ||
103 | */ | ||
104 | unsigned int SDLTest_Random(SDLTest_RandomContext *rndContext); | ||
105 | |||
106 | |||
107 | /* Ends C function definitions when using C++ */ | ||
108 | #ifdef __cplusplus | ||
109 | } | ||
110 | #endif | ||
111 | #include "close_code.h" | ||
112 | |||
113 | #endif /* SDL_test_random_h_ */ | ||
114 | |||
115 | /* vi: set ts=4 sw=4 expandtab: */ | ||