Mercurial > sdl-ios-xcode
annotate src/timer/amigaos/SDL_systimer.c @ 1192:54aa9aa32327
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Fri, 18 Nov 2005 23:39:02 +0100
Subject: [SDL] Mouse position bugs on Mac OS X
The attached patch fixes a few bugs in SDL related to the mouse position
in windowed mode on Mac OS X, reproduced using the attached minimal test
program - at least here on 10.3.9, with SDL CVS from today. Could anyone
test whether the bugs exist and are fixed by the patch on 10.2 and 10.4?
1. When using OpenGL, the vertical mouse positions obtained through
events or SDL_GetMouseState() are off by one.
2. When using OpenGL, SDL_WarpMouse() inverts the y coordinate.
3. Clicks on the topmost pixel row of the window are not recognized.
1 and 2 do not occur in non-OpenGL mode, while 3 does. All three only
occur in windowed mode, not in fullscreen.
The cause for 1 and 3 is that in Cocoa, "the location of the mouse"
seems to be defined as "the location of the top left corner of the mouse
pointer's hot pixel" (this is not documented, it's just what I found out
here), which together with the fact that Cocoa's usual y coordinates
start at the bottom and increase upwards means that the y coordinate of
the mouse runs from 1 to h, not from 0 to h-1, in a window of height h.
If it does work on 10.2 and 10.4 (I'll try to test it as soon as I can,
but at the moment all I have at hand is 10.3.9), can this be applied to
the CVS?
-Christian
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Mon, 28 Nov 2005 10:41:51 +0100
Subject: [SDL] Re: Mouse position bugs on Mac OS X
I wrote:
> I'll try to test it as soon as I can, but at the moment all I have at hand is 10.3.9
So, here are the results of my tests (with patched and unpatched
frameworks compiled with Xcode 1.5 (gcc 3.3) on 10.3.9):
On 10.1.5, my test program doesn't run because of "Undefined symbols:
SDL undefined reference to _CGMainDisplayID expected to be defined in
Carbon". I guess not supporting 10.1 was a deliberate decision then and
that's OK with me.
On 10.2.8, 10.3.9, and 10.4.0, the bugs exist as described in my
original post and are fixed by my patch. That is, there is no difference
between pre/post 10.3 and the patched version works correctly in all
combinations of GL/non-GL and windowed/fullscreen.
I therefore recommend the patch for inclusion.
-Christian
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Mon, 28 Nov 2005 13:58:26 +0000 |
parents | b8d311d90021 |
children | c9b51268668f |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2004 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 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 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 #include <stdio.h> | |
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29 #include <time.h> |
0 | 30 #include <signal.h> |
31 #include <unistd.h> | |
32 #include <string.h> | |
33 #include <errno.h> | |
21
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34 #include <exec/types.h> |
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35 #ifdef __SASC |
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36 #include <proto/dos.h> |
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37 #include <clib/graphics_protos.h> |
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38 #include <pragmas/graphics.h> |
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39 #include <clib/exec_protos.h> |
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40 #include <pragmas/exec.h> |
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41 #elif defined(STORMC4_WOS) |
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42 #include <proto/dos.h> |
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43 #include <proto/exec.h> |
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44 #include <proto/graphics.h> |
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45 #else |
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46 #include <inline/dos.h> |
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47 #include <inline/exec.h> |
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48 #include <inline/graphics.h> |
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49 #endif |
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50 #include "mydebug.h" |
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51 |
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52 extern struct DosLibrary *DOSBase; |
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53 extern struct ExecBase *SysBase; |
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54 static struct GfxBase *GfxBase; |
0 | 55 |
56 #include "SDL_error.h" | |
57 #include "SDL_timer.h" | |
58 #include "SDL_timer_c.h" | |
59 | |
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60 #if defined(DISABLE_THREADS) || defined(FORK_HACK) |
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61 #define USE_ITIMER |
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62 #endif |
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63 |
0 | 64 /* The first ticks value of the application */ |
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65 |
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66 #if !defined(__PPC__) || defined(STORMC4_WOS) || defined(MORPHOS) |
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67 static clock_t start; |
0 | 68 |
69 void SDL_StartTicks(void) | |
70 { | |
71 /* Set first ticks value */ | |
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72 start=clock(); |
0 | 73 } |
74 | |
75 Uint32 SDL_GetTicks (void) | |
76 { | |
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77 clock_t ticks; |
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78 |
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79 ticks=clock()-start; |
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80 |
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81 #ifdef __SASC |
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82 // CLOCKS_PER_SEC == 1000 ! |
0 | 83 |
84 return(ticks); | |
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85 #else |
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86 // CLOCKS_PER_SEC != 1000 ! |
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87 |
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88 return ticks*(1000/CLOCKS_PER_SEC); |
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89 #endif |
0 | 90 } |
91 | |
92 void SDL_Delay (Uint32 ms) | |
93 { | |
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94 // Do a busy wait if time is less than 50ms |
0 | 95 |
21
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96 if(ms<50) |
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97 { |
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98 clock_t to_wait=clock(); |
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99 |
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100 #ifndef __SASC |
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101 ms*=(CLOCKS_PER_SEC/1000); |
0 | 102 #endif |
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103 to_wait+=ms; |
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104 |
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105 while(clock()<to_wait); |
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106 } |
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107 else |
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108 { |
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109 Delay(ms/20); |
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110 } |
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111 } |
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112 |
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113 #else |
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114 |
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115 ULONG MY_CLOCKS_PER_SEC; |
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116 |
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117 void PPC_TimerInit(void); |
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118 APTR MyTimer; |
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119 |
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120 ULONG start[2]; |
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121 |
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122 void SDL_StartTicks(void) |
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123 { |
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124 /* Set first ticks value */ |
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125 if(!MyTimer) |
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126 PPC_TimerInit(); |
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127 |
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128 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,start); |
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129 start[1]>>=10; |
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130 start[1]|=((result[0]&0x3ff)<<22); |
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131 start[0]>>=10; |
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132 } |
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133 |
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134 Uint32 SDL_GetTicks (void) |
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135 { |
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136 ULONG result[2]; |
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137 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,result); |
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138 |
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139 // PPCAsr64p(result,10); |
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140 // Non va, la emulo: |
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141 |
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142 result[1]>>=10; |
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143 result[1]|=((result[0]&0x3ff)<<22); |
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144 |
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145 // Non mi interessa piu' result[0] |
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146 |
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147 return result[1]*1000/MY_CLOCKS_PER_SEC; |
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148 } |
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149 |
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150 void SDL_Delay (Uint32 ms) |
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151 { |
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152 // Do a busy wait if time is less than 50ms |
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153 |
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154 if(ms<50) |
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155 { |
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156 ULONG to_wait[2],actual[2]; |
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157 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,result); |
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158 actual[1]=0; |
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159 to_wait[1]+=ms*1000/MY_CLOCKS_PER_SEC; |
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160 |
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161 while(actual[1]<to_wait[1]) |
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162 { |
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163 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,actual); |
0 | 164 } |
21
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165 } |
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166 else |
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167 { |
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168 Delay(ms/50); |
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169 } |
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170 } |
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171 |
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172 void PPC_TimerInit(void) |
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173 { |
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174 struct TagItem tags[]= |
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175 { |
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176 PPCTIMERTAG_CPU,TRUE, |
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177 TAG_DONE,0 |
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178 }; |
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179 |
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180 |
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181 if(MyTimer=PPCCreateTimerObject(tags)) |
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182 { |
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183 ULONG result[2]; |
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184 |
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185 PPCGetTimerObject(MyTimer,PPCTIMERTAG_TICKSPERSEC,result); |
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186 D(bug("Timer inizializzato, TPS: %lu - %lu\n",result[0],result[1])); |
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187 // PPCAsr64p(result,10); |
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188 result[1]>>=10; |
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189 result[1]|=((result[0]&0x3ff)<<22); |
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190 result[0]>>=10; |
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191 |
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192 D(bug("Shiftato TPS: %lu - %lu\n",result[0],result[1])); |
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193 MY_CLOCKS_PER_SEC=result[1]; |
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194 |
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195 PPCGetTimerObject(MyTimer,PPCTIMERTAG_CURRENTTICKS,result); |
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196 |
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197 D(bug("Current ticks: %lu - %lu\n",result[0],result[1])); |
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198 result[1]>>=10; |
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199 result[1]|=((result[0]&0x3ff)<<22); |
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200 result[0]>>=10; |
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201 // PPCAsr64p(result,10); |
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202 D(bug("Shiftato: %lu - %lu\n",result[0],result[1])); |
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203 } |
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204 else |
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205 { |
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206 D(bug("Errore nell'inizializzazione del timer!\n")); |
255
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207 } |
21
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208 } |
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209 |
0 | 210 #endif |
211 | |
212 #include "SDL_thread.h" | |
213 | |
214 /* Data to handle a single periodic alarm */ | |
215 static int timer_alive = 0; | |
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216 static SDL_Thread *timer_thread = NULL; |
0 | 217 |
218 static int RunTimer(void *unused) | |
219 { | |
21
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220 D(bug("SYSTimer: Entering RunTimer loop...")); |
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221 |
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222 if(GfxBase==NULL) |
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223 GfxBase=(struct GfxBase *)OpenLibrary("graphics.library",37); |
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224 |
0 | 225 while ( timer_alive ) { |
226 if ( SDL_timer_running ) { | |
227 SDL_ThreadedTimerCheck(); | |
228 } | |
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229 if(GfxBase) |
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230 WaitTOF(); // Check the timer every fifth of seconds. Was SDL_Delay(1)->BusyWait! |
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231 else |
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232 Delay(1); |
0 | 233 } |
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234 D(bug("SYSTimer: EXITING RunTimer loop...")); |
0 | 235 return(0); |
236 } | |
237 | |
238 /* This is only called if the event thread is not running */ | |
239 int SDL_SYS_TimerInit(void) | |
240 { | |
255
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241 D(bug("Creating thread for the timer (NOITIMER)...\n")); |
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242 |
0 | 243 timer_alive = 1; |
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244 timer_thread = SDL_CreateThread(RunTimer, NULL); |
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245 if ( timer_thread == NULL ) |
0 | 246 { |
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247 D(bug("Creazione del thread fallita...\n")); |
0 | 248 |
249 return(-1); | |
250 } | |
251 return(SDL_SetTimerThreaded(1)); | |
252 } | |
253 | |
254 void SDL_SYS_TimerQuit(void) | |
255 { | |
256 timer_alive = 0; | |
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257 if ( timer_thread ) { |
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258 SDL_WaitThread(timer_thread, NULL); |
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259 timer_thread = NULL; |
0 | 260 } |
261 } | |
262 | |
263 int SDL_SYS_StartTimer(void) | |
264 { | |
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265 SDL_SetError("Internal logic error: AmigaOS uses threaded timer"); |
0 | 266 return(-1); |
267 } | |
268 | |
269 void SDL_SYS_StopTimer(void) | |
270 { | |
271 return; | |
272 } |