diff options
author | Franklin Wei <git@fwei.tk> | 2017-01-21 15:18:31 -0500 |
---|---|---|
committer | Franklin Wei <git@fwei.tk> | 2017-12-23 21:01:26 -0500 |
commit | a855d6202536ff28e5aae4f22a0f31d8f5b325d0 (patch) | |
tree | 8c75f224dd64ed360505afa8843d016b0d75000b /apps/plugins/sdl/src/timer/wince | |
parent | 01c6dcf6c7b9bb1ad2fa0450f99bacc5f3d3e04b (diff) | |
download | rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.tar.gz rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.zip |
Port of Duke Nukem 3D
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.
Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
Diffstat (limited to 'apps/plugins/sdl/src/timer/wince')
-rw-r--r-- | apps/plugins/sdl/src/timer/wince/SDL_systimer.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/timer/wince/SDL_systimer.c b/apps/plugins/sdl/src/timer/wince/SDL_systimer.c new file mode 100644 index 0000000000..2b018b0ed5 --- /dev/null +++ b/apps/plugins/sdl/src/timer/wince/SDL_systimer.c | |||
@@ -0,0 +1,198 @@ | |||
1 | /* | ||
2 | SDL - Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2012 Sam Lantinga | ||
4 | |||
5 | This library is free software; you can redistribute it and/or | ||
6 | modify it under the terms of the GNU Lesser General Public | ||
7 | License as published by the Free Software Foundation; either | ||
8 | version 2.1 of the License, or (at your option) any later version. | ||
9 | |||
10 | This library is distributed in the hope that it will be useful, | ||
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Lesser General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Lesser General Public | ||
16 | License along with this library; if not, write to the Free Software | ||
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
18 | |||
19 | Sam Lantinga | ||
20 | slouken@libsdl.org | ||
21 | */ | ||
22 | #include "SDL_config.h" | ||
23 | |||
24 | #ifdef SDL_TIMER_WINCE | ||
25 | |||
26 | #define WIN32_LEAN_AND_MEAN | ||
27 | #include <windows.h> | ||
28 | #include <mmsystem.h> | ||
29 | |||
30 | #include "SDL_thread.h" | ||
31 | #include "SDL_timer.h" | ||
32 | #include "../SDL_timer_c.h" | ||
33 | |||
34 | static Uint64 start_date; | ||
35 | static Uint64 start_ticks; | ||
36 | |||
37 | static Uint64 wce_ticks(void) | ||
38 | { | ||
39 | return((Uint64)GetTickCount()); | ||
40 | } | ||
41 | |||
42 | static Uint64 wce_date(void) | ||
43 | { | ||
44 | union | ||
45 | { | ||
46 | FILETIME ftime; | ||
47 | Uint64 itime; | ||
48 | } ftime; | ||
49 | SYSTEMTIME stime; | ||
50 | |||
51 | GetSystemTime(&stime); | ||
52 | SystemTimeToFileTime(&stime,&ftime.ftime); | ||
53 | ftime.itime/=10000; // Convert 100ns intervals to 1ms intervals | ||
54 | // Remove ms portion, which can't be relied on | ||
55 | ftime.itime -= (ftime.itime % 1000); | ||
56 | return(ftime.itime); | ||
57 | } | ||
58 | |||
59 | static Sint32 wce_rel_ticks(void) | ||
60 | { | ||
61 | return((Sint32)(wce_ticks()-start_ticks)); | ||
62 | } | ||
63 | |||
64 | static Sint32 wce_rel_date(void) | ||
65 | { | ||
66 | return((Sint32)(wce_date()-start_date)); | ||
67 | } | ||
68 | |||
69 | /* Return time in ms relative to when SDL was started */ | ||
70 | Uint32 SDL_GetTicks() | ||
71 | { | ||
72 | Sint32 offset=wce_rel_date()-wce_rel_ticks(); | ||
73 | if((offset < -1000) || (offset > 1000)) | ||
74 | { | ||
75 | // fprintf(stderr,"Time desync(%+d), resyncing\n",offset/1000); | ||
76 | start_ticks-=offset; | ||
77 | } | ||
78 | |||
79 | return((Uint32)wce_rel_ticks()); | ||
80 | } | ||
81 | |||
82 | /* Give up approx. givem milliseconds to the OS. */ | ||
83 | void SDL_Delay(Uint32 ms) | ||
84 | { | ||
85 | Sleep(ms); | ||
86 | } | ||
87 | |||
88 | /* Recard start-time of application for reference */ | ||
89 | void SDL_StartTicks(void) | ||
90 | { | ||
91 | start_date=wce_date(); | ||
92 | start_ticks=wce_ticks(); | ||
93 | } | ||
94 | |||
95 | static UINT WIN_timer; | ||
96 | |||
97 | #if ( _WIN32_WCE <= 420 ) | ||
98 | |||
99 | static HANDLE timersThread = 0; | ||
100 | static HANDLE timersQuitEvent = 0; | ||
101 | |||
102 | DWORD TimersThreadProc(void *data) | ||
103 | { | ||
104 | while(WaitForSingleObject(timersQuitEvent, 10) == WAIT_TIMEOUT) | ||
105 | { | ||
106 | SDL_ThreadedTimerCheck(); | ||
107 | } | ||
108 | return 0; | ||
109 | } | ||
110 | |||
111 | int SDL_SYS_TimerInit(void) | ||
112 | { | ||
113 | // create a thread to process a threaded timers | ||
114 | // SetTimer does not suit the needs because | ||
115 | // TimerCallbackProc will be called only when WM_TIMER occured | ||
116 | |||
117 | timersQuitEvent = CreateEvent(0, TRUE, FALSE, 0); | ||
118 | if( !timersQuitEvent ) | ||
119 | { | ||
120 | SDL_SetError("Cannot create event for timers thread"); | ||
121 | return -1; | ||
122 | } | ||
123 | timersThread = CreateThread(NULL, 0, TimersThreadProc, 0, 0, 0); | ||
124 | if( !timersThread ) | ||
125 | { | ||
126 | SDL_SetError("Cannot create timers thread, check amount of RAM available"); | ||
127 | return -1; | ||
128 | } | ||
129 | SetThreadPriority(timersThread, THREAD_PRIORITY_HIGHEST); | ||
130 | |||
131 | return(SDL_SetTimerThreaded(1)); | ||
132 | } | ||
133 | |||
134 | void SDL_SYS_TimerQuit(void) | ||
135 | { | ||
136 | SetEvent(timersQuitEvent); | ||
137 | if( WaitForSingleObject(timersThread, 2000) == WAIT_TIMEOUT ) | ||
138 | TerminateThread(timersThread, 0); | ||
139 | CloseHandle(timersThread); | ||
140 | CloseHandle(timersQuitEvent); | ||
141 | return; | ||
142 | } | ||
143 | |||
144 | #else | ||
145 | |||
146 | #pragma comment(lib, "mmtimer.lib") | ||
147 | |||
148 | /* Data to handle a single periodic alarm */ | ||
149 | static UINT timerID = 0; | ||
150 | |||
151 | static void CALLBACK HandleAlarm(UINT uID, UINT uMsg, DWORD dwUser, | ||
152 | DWORD dw1, DWORD dw2) | ||
153 | { | ||
154 | SDL_ThreadedTimerCheck(); | ||
155 | } | ||
156 | |||
157 | |||
158 | int SDL_SYS_TimerInit(void) | ||
159 | { | ||
160 | MMRESULT result; | ||
161 | |||
162 | /* Set timer resolution */ | ||
163 | result = timeBeginPeriod(TIMER_RESOLUTION); | ||
164 | if ( result != TIMERR_NOERROR ) { | ||
165 | SDL_SetError("Warning: Can't set %d ms timer resolution", | ||
166 | TIMER_RESOLUTION); | ||
167 | } | ||
168 | /* Allow 10 ms of drift so we don't chew on CPU */ | ||
169 | timerID = timeSetEvent(TIMER_RESOLUTION,1,HandleAlarm,0,TIME_PERIODIC); | ||
170 | if ( ! timerID ) { | ||
171 | SDL_SetError("timeSetEvent() failed"); | ||
172 | return(-1); | ||
173 | } | ||
174 | return(SDL_SetTimerThreaded(1)); | ||
175 | } | ||
176 | |||
177 | void SDL_SYS_TimerQuit(void) | ||
178 | { | ||
179 | if ( timerID ) { | ||
180 | timeKillEvent(timerID); | ||
181 | } | ||
182 | timeEndPeriod(TIMER_RESOLUTION); | ||
183 | } | ||
184 | |||
185 | #endif | ||
186 | |||
187 | int SDL_SYS_StartTimer(void) | ||
188 | { | ||
189 | SDL_SetError("Internal logic error: WinCE uses threaded timer"); | ||
190 | return(-1); | ||
191 | } | ||
192 | |||
193 | void SDL_SYS_StopTimer(void) | ||
194 | { | ||
195 | return; | ||
196 | } | ||
197 | |||
198 | #endif /* SDL_TIMER_WINCE */ | ||