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annotate src/timer/mint/SDL_systimer.c @ 753:b14fdadd8311

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Date: Thu, 4 Dec 2003 07:48:40 +0200 From: "Mike Gorchak" Subject: SDL/QNX6 new patch Here in attachment my patch for the SDL/QNX6 again :) It contain non-crtitical/cosmetic fixes: 1. Fixed window centering at other than the first consoles. 2. Fixed window centering algorithm in case when window height or width are greater than the desktop resolution. 3. Fixed window positioning on other than the first consoles. 4. Fixed occasional input focus lost when switching to fullscreen. 5. Removed the Photon's default chroma color for the overlays, added RGB(12, 6, 12) color instead (very dark pink). 6. Added more checks to the YUV overlay code (fixed crashes during resolution mode switches). 7. Added support for Enter/Backspace keys in unicode mode (used by Maelstrom and by other games). 8. Fixed window restore/maximize function. It works, finally.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 10 Dec 2003 12:35:56 +0000
parents 0ce5a68278fd
children 623b453a3219
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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4
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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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /*
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29 * TOS/MiNT timer driver
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30 * based on vbl vector
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31 *
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32 * Patrice Mandin
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33 */
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34
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35 #include <stdio.h>
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36 #include <sys/time.h>
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37 #include <signal.h>
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38 #include <unistd.h>
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39 #include <string.h>
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40 #include <errno.h>
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41
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42 #include <mint/osbind.h>
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43 #include <mint/sysvars.h>
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44
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45 #include "SDL_error.h"
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46 #include "SDL_timer.h"
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47 #include "SDL_timer_c.h"
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48 #include "SDL_thread.h"
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49
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50 #include "SDL_vbltimer_s.h"
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51
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52 /* The first ticks value of the application */
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53 static Uint32 start;
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54 static SDL_bool supervisor;
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55
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56 void SDL_StartTicks(void)
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57 {
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58 void *oldpile;
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59
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60 /* Set first ticks value */
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61 oldpile=(void *)Super(0);
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62 start=*((volatile long *)_hz_200);
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63 Super(oldpile);
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64
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65 start *= 5; /* One _hz_200 tic is 5ms */
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66 }
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67
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68 Uint32 SDL_GetTicks (void)
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69 {
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70 Uint32 now;
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71 void *oldpile;
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72
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73 /* Check if we are in supervisor mode
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74 (this is the case when called from SDL_ThreadedTimerCheck,
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75 which is called from RunTimer, running in the vbl vector)
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76 */
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77 if (!supervisor) {
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78 oldpile=(void *)Super(0);
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79 }
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80
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81 now=*((volatile long *)_hz_200);
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82
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83 if (!supervisor) {
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84 Super(oldpile);
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85 }
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86
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87 return((now*5)-start);
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88 }
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89
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90 void SDL_Delay (Uint32 ms)
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91 {
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92 Uint32 now;
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93
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94 now = SDL_GetTicks();
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95 while ((SDL_GetTicks()-now)<ms){
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96 }
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97 }
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98
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99 /* Data to handle a single periodic alarm */
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100 static SDL_bool timer_installed=SDL_FALSE;
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101
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102 static void RunTimer(void)
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103 {
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104 supervisor=SDL_TRUE;
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105 SDL_ThreadedTimerCheck();
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106 supervisor=SDL_FALSE;
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107 }
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108
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109 /* This is only called if the event thread is not running */
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110 int SDL_SYS_TimerInit(void)
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111 {
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112 void *oldpile;
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113
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114 supervisor=SDL_FALSE;
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115
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116 /* Install RunTimer in vbl vector */
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117 oldpile=(void *)Super(0);
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118 timer_installed = !SDL_AtariVblInstall(RunTimer);
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119 Super(oldpile);
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120
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121 if (!timer_installed) {
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122 return(-1);
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123 }
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124 return(SDL_SetTimerThreaded(0));
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125 }
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126
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127 void SDL_SYS_TimerQuit(void)
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128 {
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129 void *oldpile;
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130
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131 if (timer_installed) {
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132 /* Uninstall RunTimer vbl vector */
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133 oldpile=(void *)Super(0);
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134 SDL_AtariVblUninstall(RunTimer);
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135 Super(oldpile);
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136 timer_installed = SDL_FALSE;
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137 }
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138 }
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139
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140 int SDL_SYS_StartTimer(void)
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141 {
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142 SDL_SetError("Internal logic error: MiNT uses vbl timer");
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143 return(-1);
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144 }
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145
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146 void SDL_SYS_StopTimer(void)
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147 {
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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148 return;
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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149 }