1 |
|
|
/* |
2 |
|
|
* The ManaPlus Client |
3 |
|
|
* Copyright (C) 2011-2019 The ManaPlus Developers |
4 |
|
|
* Copyright (C) 2019-2021 Andrei Karas |
5 |
|
|
* |
6 |
|
|
* This file is part of The ManaPlus Client. |
7 |
|
|
* |
8 |
|
|
* This program is free software; you can redistribute it and/or modify |
9 |
|
|
* it under the terms of the GNU General Public License as published by |
10 |
|
|
* the Free Software Foundation; either version 2 of the License, or |
11 |
|
|
* any later version. |
12 |
|
|
* |
13 |
|
|
* This program is distributed in the hope that it will be useful, |
14 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 |
|
|
* GNU General Public License for more details. |
17 |
|
|
* |
18 |
|
|
* You should have received a copy of the GNU General Public License |
19 |
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 |
|
|
*/ |
21 |
|
|
|
22 |
|
|
#include "utils/timer.h" |
23 |
|
|
|
24 |
|
|
#include "const/utils/timer.h" |
25 |
|
|
|
26 |
|
|
PRAGMA48(GCC diagnostic push) |
27 |
|
|
PRAGMA48(GCC diagnostic ignored "-Wshadow") |
28 |
|
|
#include <SDL_timer.h> |
29 |
|
|
PRAGMA48(GCC diagnostic pop) |
30 |
|
|
|
31 |
|
|
#include <climits> |
32 |
|
|
|
33 |
|
|
#include "debug.h" |
34 |
|
|
|
35 |
|
|
namespace |
36 |
|
|
{ |
37 |
|
|
#ifdef USE_SDL2 |
38 |
|
|
SDL_TimerID mLogicCounterId(0); |
39 |
|
|
SDL_TimerID mSecondsCounterId(0); |
40 |
|
|
#else // USE_SDL2 |
41 |
|
|
|
42 |
|
|
SDL_TimerID mLogicCounterId(nullptr); |
43 |
|
|
SDL_TimerID mSecondsCounterId(nullptr); |
44 |
|
|
#endif // USE_SDL2 |
45 |
|
|
} // namespace |
46 |
|
|
|
47 |
|
|
/** |
48 |
|
|
* Tells the max tick value, |
49 |
|
|
* setting it back to zero (and start again). |
50 |
|
|
*/ |
51 |
|
|
static const int MAX_TICK_VALUE = INT_MAX / 2; |
52 |
|
|
|
53 |
|
|
volatile int tick_time; /**< Tick counter */ |
54 |
|
|
volatile int fps = 0; /**< Frames counted in the last second */ |
55 |
|
|
volatile int lps = 0; /**< Logic processed per second */ |
56 |
|
|
volatile int frame_count = 0; /**< Counts the frames during one second */ |
57 |
|
|
volatile int logic_count = 0; /**< Counts the logic during one second */ |
58 |
|
|
volatile time_t cur_time = 0; |
59 |
|
|
|
60 |
|
|
static uint32_t nextTick(uint32_t interval, void *param A_UNUSED); |
61 |
|
|
static uint32_t nextSecond(uint32_t interval, void *param A_UNUSED); |
62 |
|
|
|
63 |
|
|
/** |
64 |
|
|
* Advances game logic counter. |
65 |
|
|
* Called every 10 milliseconds by SDL_AddTimer() |
66 |
|
|
* @see MILLISECONDS_IN_A_TICK value |
67 |
|
|
*/ |
68 |
|
|
static uint32_t nextTick(uint32_t interval, void *param A_UNUSED) |
69 |
|
|
{ |
70 |
|
|
tick_time = tick_time + 1; |
71 |
|
|
if (tick_time == MAX_TICK_VALUE) |
72 |
|
|
tick_time = 0; |
73 |
|
|
return interval; |
74 |
|
|
} |
75 |
|
|
|
76 |
|
|
/** |
77 |
|
|
* Updates fps. |
78 |
|
|
* Called every seconds by SDL_AddTimer() |
79 |
|
|
*/ |
80 |
|
|
static uint32_t nextSecond(uint32_t interval, void *param A_UNUSED) |
81 |
|
|
{ |
82 |
|
|
fps = frame_count; |
83 |
|
|
lps = logic_count; |
84 |
|
|
frame_count = 0; |
85 |
|
|
logic_count = 0; |
86 |
|
|
|
87 |
|
|
return interval; |
88 |
|
|
} |
89 |
|
|
|
90 |
|
|
/** |
91 |
|
|
* @return the elapsed time in milliseconds |
92 |
|
|
* between two tick values. |
93 |
|
|
*/ |
94 |
|
14 |
int get_elapsed_time(const int startTime) |
95 |
|
|
{ |
96 |
|
14 |
const int time = tick_time; |
97 |
✓✓ |
14 |
if (startTime <= time) |
98 |
|
|
{ |
99 |
|
8 |
return (time - startTime) * MILLISECONDS_IN_A_TICK; |
100 |
|
|
} |
101 |
|
6 |
return (time + (MAX_TICK_VALUE - startTime)) |
102 |
|
6 |
* MILLISECONDS_IN_A_TICK; |
103 |
|
|
} |
104 |
|
|
|
105 |
|
14 |
int get_elapsed_time1(const int startTime) |
106 |
|
|
{ |
107 |
|
14 |
const int time = tick_time; |
108 |
✓✓ |
14 |
if (startTime <= time) |
109 |
|
8 |
return time - startTime; |
110 |
|
6 |
return time + (MAX_TICK_VALUE - startTime); |
111 |
|
|
} |
112 |
|
|
|
113 |
|
|
void startTimers() |
114 |
|
|
{ |
115 |
|
|
// Initialize logic and seconds counters |
116 |
|
|
tick_time = 0; |
117 |
|
|
mLogicCounterId = SDL_AddTimer(MILLISECONDS_IN_A_TICK, nextTick, nullptr); |
118 |
|
|
mSecondsCounterId = SDL_AddTimer(1000, nextSecond, nullptr); |
119 |
|
|
} |
120 |
|
|
|
121 |
|
204 |
void stopTimers() |
122 |
|
|
{ |
123 |
|
204 |
SDL_RemoveTimer(mLogicCounterId); |
124 |
|
204 |
SDL_RemoveTimer(mSecondsCounterId); |
125 |
|
204 |
} |