Mercurial > sdl-ios-xcode
annotate src/timer/amigaos/SDL_systimer.c @ 1768:814f9f2c7a33
Fixed bug #80
Date: 21 Apr 2003 17:20:20 +0100
From: Alan Swanson <swanson@uklinux.net>
Subject: [SDL] New XFree 4.3 Video Mode Patch
If you look at the unsorted list of modes returned by X, here's mine;
1280 x 1024 @ 85.0 >
1024 x 768 @ 100.3 > USER
800 x 600 @ 125.5 > SET
640 x 480 @ 124.9 >
1280 x 1024 @ 75.0 ]
1280 x 1024 @ 60.0 ]
1280 x 960 @ 85.0 ] X11
1280 x 960 @ 60.0 ] AUTO
1152 x 864 @ 75.0 ]=20
1152 x 768 @ 54.8 ]
960 x 720 @ 120.0 ]
...
640 x 400 @ 85.1 ] 256k
576 x 432 @ 150.0 ] 249k PIXEL
640 x 350 @ 85.1 ] 224k COUNT
576 x 384 @ 109.6 ] 221k
...
The user set modes come first followed by X set modes which are ordered
by decreasing number of pixels and refresh.
The reason why every other library or program not using SDL working is
due to SDL scanning the modes in reverse getting X11 provided modes
modes with the lowest refresh.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 05 May 2006 05:50:26 +0000 |
| parents | 92947e3a18db |
| children | 782fd950bd46 c121d94672cb |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
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24 #ifdef SDL_TIMER_AMIGA |
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25 |
| 0 | 26 #include <stdio.h> |
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27 #include <time.h> |
| 0 | 28 #include <signal.h> |
| 29 #include <unistd.h> | |
| 30 #include <string.h> | |
| 31 #include <errno.h> | |
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32 #include <exec/types.h> |
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33 #ifdef __SASC |
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34 #include <proto/dos.h> |
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35 #include <clib/graphics_protos.h> |
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36 #include <pragmas/graphics.h> |
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37 #include <clib/exec_protos.h> |
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38 #include <pragmas/exec.h> |
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39 #elif defined(STORMC4_WOS) |
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40 #include <proto/dos.h> |
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41 #include <proto/exec.h> |
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42 #include <proto/graphics.h> |
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43 #else |
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44 #include <inline/dos.h> |
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45 #include <inline/exec.h> |
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46 #include <inline/graphics.h> |
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47 #endif |
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48 #include "mydebug.h" |
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49 |
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50 extern struct DosLibrary *DOSBase; |
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51 extern struct ExecBase *SysBase; |
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52 static struct GfxBase *GfxBase; |
| 0 | 53 |
| 54 #include "SDL_timer.h" | |
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55 #include "../SDL_timer_c.h" |
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56 |
| 0 | 57 /* The first ticks value of the application */ |
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58 |
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59 #if !defined(__PPC__) || defined(STORMC4_WOS) || defined(MORPHOS) |
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60 static clock_t start; |
| 0 | 61 |
| 62 void SDL_StartTicks(void) | |
| 63 { | |
| 64 /* Set first ticks value */ | |
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65 start=clock(); |
| 0 | 66 } |
| 67 | |
| 68 Uint32 SDL_GetTicks (void) | |
| 69 { | |
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70 clock_t ticks; |
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71 |
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72 ticks=clock()-start; |
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73 |
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74 #ifdef __SASC |
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75 // CLOCKS_PER_SEC == 1000 ! |
| 0 | 76 |
| 77 return(ticks); | |
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78 #else |
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79 // CLOCKS_PER_SEC != 1000 ! |
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80 |
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81 return ticks*(1000/CLOCKS_PER_SEC); |
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82 #endif |
| 0 | 83 } |
| 84 | |
| 85 void SDL_Delay (Uint32 ms) | |
| 86 { | |
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87 // Do a busy wait if time is less than 50ms |
| 0 | 88 |
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89 if(ms<50) |
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90 { |
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91 clock_t to_wait=clock(); |
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92 |
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93 #ifndef __SASC |
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94 ms*=(CLOCKS_PER_SEC/1000); |
| 0 | 95 #endif |
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96 to_wait+=ms; |
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97 |
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98 while(clock()<to_wait); |
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99 } |
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100 else |
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101 { |
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102 Delay(ms/20); |
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103 } |
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104 } |
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105 |
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106 #else |
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107 |
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108 ULONG MY_CLOCKS_PER_SEC; |
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109 |
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110 void PPC_TimerInit(void); |
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111 APTR MyTimer; |
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112 |
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113 ULONG start[2]; |
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114 |
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115 void SDL_StartTicks(void) |
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116 { |
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117 /* Set first ticks value */ |
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118 if(!MyTimer) |
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119 PPC_TimerInit(); |
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120 |
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121 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,start); |
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122 start[1]>>=10; |
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123 start[1]|=((result[0]&0x3ff)<<22); |
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124 start[0]>>=10; |
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125 } |
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126 |
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127 Uint32 SDL_GetTicks (void) |
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128 { |
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129 ULONG result[2]; |
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130 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,result); |
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131 |
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132 // PPCAsr64p(result,10); |
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133 // Non va, la emulo: |
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134 |
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135 result[1]>>=10; |
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136 result[1]|=((result[0]&0x3ff)<<22); |
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137 |
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138 // Non mi interessa piu' result[0] |
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139 |
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140 return result[1]*1000/MY_CLOCKS_PER_SEC; |
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141 } |
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142 |
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143 void SDL_Delay (Uint32 ms) |
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144 { |
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145 // Do a busy wait if time is less than 50ms |
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146 |
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147 if(ms<50) |
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148 { |
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149 ULONG to_wait[2],actual[2]; |
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150 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,result); |
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151 actual[1]=0; |
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152 to_wait[1]+=ms*1000/MY_CLOCKS_PER_SEC; |
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153 |
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154 while(actual[1]<to_wait[1]) |
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155 { |
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156 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,actual); |
| 0 | 157 } |
|
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158 } |
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159 else |
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160 { |
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161 Delay(ms/50); |
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162 } |
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163 } |
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164 |
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165 void PPC_TimerInit(void) |
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166 { |
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167 struct TagItem tags[]= |
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168 { |
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169 PPCTIMERTAG_CPU,TRUE, |
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170 TAG_DONE,0 |
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171 }; |
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172 |
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173 |
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174 if(MyTimer=PPCCreateTimerObject(tags)) |
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175 { |
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176 ULONG result[2]; |
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177 |
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178 PPCGetTimerObject(MyTimer,PPCTIMERTAG_TICKSPERSEC,result); |
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179 D(bug("Timer inizializzato, TPS: %lu - %lu\n",result[0],result[1])); |
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180 // PPCAsr64p(result,10); |
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181 result[1]>>=10; |
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182 result[1]|=((result[0]&0x3ff)<<22); |
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183 result[0]>>=10; |
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184 |
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185 D(bug("Shiftato TPS: %lu - %lu\n",result[0],result[1])); |
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186 MY_CLOCKS_PER_SEC=result[1]; |
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187 |
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188 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,result); |
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189 |
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190 D(bug("Current ticks: %lu - %lu\n",result[0],result[1])); |
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191 result[1]>>=10; |
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192 result[1]|=((result[0]&0x3ff)<<22); |
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193 result[0]>>=10; |
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194 // PPCAsr64p(result,10); |
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195 D(bug("Shiftato: %lu - %lu\n",result[0],result[1])); |
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196 } |
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197 else |
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198 { |
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199 D(bug("Errore nell'inizializzazione del timer!\n")); |
|
255
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200 } |
|
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201 } |
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202 |
| 0 | 203 #endif |
| 204 | |
| 205 #include "SDL_thread.h" | |
| 206 | |
| 207 /* Data to handle a single periodic alarm */ | |
| 208 static int timer_alive = 0; | |
|
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209 static SDL_Thread *timer_thread = NULL; |
| 0 | 210 |
| 211 static int RunTimer(void *unused) | |
| 212 { | |
|
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213 D(bug("SYSTimer: Entering RunTimer loop...")); |
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214 |
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215 if(GfxBase==NULL) |
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216 GfxBase=(struct GfxBase *)OpenLibrary("graphics.library",37); |
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217 |
| 0 | 218 while ( timer_alive ) { |
| 219 if ( SDL_timer_running ) { | |
| 220 SDL_ThreadedTimerCheck(); | |
| 221 } | |
|
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222 if(GfxBase) |
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223 WaitTOF(); // Check the timer every fifth of seconds. Was SDL_Delay(1)->BusyWait! |
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224 else |
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225 Delay(1); |
| 0 | 226 } |
|
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227 D(bug("SYSTimer: EXITING RunTimer loop...")); |
| 0 | 228 return(0); |
| 229 } | |
| 230 | |
| 231 /* This is only called if the event thread is not running */ | |
| 232 int SDL_SYS_TimerInit(void) | |
| 233 { | |
|
255
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234 D(bug("Creating thread for the timer (NOITIMER)...\n")); |
|
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235 |
| 0 | 236 timer_alive = 1; |
|
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237 timer_thread = SDL_CreateThread(RunTimer, NULL); |
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238 if ( timer_thread == NULL ) |
| 0 | 239 { |
|
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240 D(bug("Creazione del thread fallita...\n")); |
| 0 | 241 |
| 242 return(-1); | |
| 243 } | |
| 244 return(SDL_SetTimerThreaded(1)); | |
| 245 } | |
| 246 | |
| 247 void SDL_SYS_TimerQuit(void) | |
| 248 { | |
| 249 timer_alive = 0; | |
|
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250 if ( timer_thread ) { |
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251 SDL_WaitThread(timer_thread, NULL); |
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252 timer_thread = NULL; |
| 0 | 253 } |
| 254 } | |
| 255 | |
| 256 int SDL_SYS_StartTimer(void) | |
| 257 { | |
|
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258 SDL_SetError("Internal logic error: AmigaOS uses threaded timer"); |
| 0 | 259 return(-1); |
| 260 } | |
| 261 | |
| 262 void SDL_SYS_StopTimer(void) | |
| 263 { | |
| 264 return; | |
| 265 } | |
|
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266 |
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267 #endif /* SDL_TIMER_AMIGA */ |