[509] | 1 | /* |
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| 2 | * Abuse - dark 2D side-scrolling platform game |
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| 3 | * Copyright (c) 1995 Crack dot Com |
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| 4 | * Copyright (c) 2005-2011 Sam Hocevar <sam@hocevar.net> |
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| 5 | * |
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| 6 | * This software was released into the Public Domain. As with most public |
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[555] | 7 | * domain software, no warranty is made or implied by Crack dot Com, by |
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| 8 | * Jonathan Clark, or by Sam Hocevar. |
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[509] | 9 | */ |
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| 10 | |
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| 11 | #ifndef __COMMON_H__ |
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| 12 | #define __COMMON_H__ |
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| 13 | |
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[518] | 14 | // |
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[524] | 15 | // Globally required headers |
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| 16 | // |
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| 17 | #include <stdint.h> |
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[525] | 18 | #include <stdio.h> |
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[524] | 19 | |
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| 20 | // |
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[518] | 21 | // Lol Engine |
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| 22 | // |
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[509] | 23 | #include "lol/matrix.h" |
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[574] | 24 | #include "lol/timer.h" |
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[509] | 25 | using namespace lol; |
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| 26 | |
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[518] | 27 | // |
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| 28 | // Custom utility functions |
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| 29 | // |
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| 30 | static inline int Min(int a, int b) { return a < b ? a : b; } |
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| 31 | static inline int Max(int a, int b) { return a > b ? a : b; } |
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[574] | 32 | static inline unsigned int Min(unsigned int a, unsigned int b) { return a < b ? a : b; } |
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| 33 | static inline unsigned int Max(unsigned int a, unsigned int b) { return a > b ? a : b; } |
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[565] | 34 | static inline long Min(long a, long b) { return a < b ? a : b; } |
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| 35 | static inline long Max(long a, long b) { return a > b ? a : b; } |
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| 36 | static inline unsigned long Min(unsigned long a, unsigned long b) { return a < b ? a : b; } |
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| 37 | static inline unsigned long Max(unsigned long a, unsigned long b) { return a > b ? a : b; } |
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[518] | 38 | static inline float Min(float a, float b) { return a < b ? a : b; } |
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| 39 | static inline float Max(float a, float b) { return a > b ? a : b; } |
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| 40 | |
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[682] | 41 | static inline ivec2 Min(ivec2 a, ivec2 b) { return ivec2(Min(a.x, b.x), Min(a.y, b.y)); } |
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| 42 | static inline ivec2 Max(ivec2 a, ivec2 b) { return ivec2(Max(a.x, b.x), Max(a.y, b.y)); } |
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[661] | 43 | |
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[524] | 44 | // |
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| 45 | // Byte swapping |
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| 46 | // |
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| 47 | static inline int BigEndian() |
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| 48 | { |
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| 49 | union { uint32_t const x; uint8_t t[4]; } const u = { 0x01ffff00 }; |
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| 50 | return u.t[0]; |
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| 51 | } |
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| 52 | |
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[525] | 53 | static inline uint16_t lstl(uint16_t x) |
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[524] | 54 | { |
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[525] | 55 | if (BigEndian()) |
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| 56 | return ((uint16_t)x << 8 ) | ((uint16_t)x >> 8); |
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| 57 | return x; |
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[524] | 58 | } |
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| 59 | |
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[525] | 60 | static inline uint32_t lltl(uint32_t x) |
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[524] | 61 | { |
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[525] | 62 | if (BigEndian()) |
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| 63 | return ((uint32_t)x >> 24) | (((uint32_t)x & 0x00ff0000) >> 8) |
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| 64 | | (((uint32_t)x & 0x0000ff00) << 8) | ((uint32_t)x << 24); |
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| 65 | return x; |
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[524] | 66 | } |
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| 67 | |
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| 68 | #define ERROR(x,st) { if (!(x)) \ |
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| 69 | { printf("Error on line %d of %s : %s\n", \ |
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| 70 | __LINE__,__FILE__,st); exit(1); } } |
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| 71 | |
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| 72 | // These macros should be removed for the non-debugging version |
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| 73 | #ifdef NO_CHECK |
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| 74 | # define CONDITION(x,st) |
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| 75 | # define CHECK(x) |
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| 76 | #else |
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| 77 | # define CONDITION(x,st) ERROR(x,st) |
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| 78 | # define CHECK(x) CONDITION(x,"Check stop"); |
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| 79 | #endif |
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| 80 | |
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[509] | 81 | #endif // __COMMON_H__ |
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| 82 | |
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