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annotate src/thread/riscos/SDL_systhread.c @ 1768:814f9f2c7a33

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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 d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 Lesser General Public
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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.
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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 Lesser 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 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
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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 #include "SDL_config.h"
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23
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24 /* RISC OS version based on pthreads linux source */
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25
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26 #include "SDL_thread.h"
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27 #include "../SDL_systhread.h"
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28
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29 #if SDL_THREADS_DISABLED
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30
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31 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
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32 {
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33 SDL_SetError("Threads have not been compiled into this version of the library");
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34 return(-1);
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35 }
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36
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37 void SDL_SYS_SetupThread(void)
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38 {
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39 return;
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40 }
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41
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42 Uint32 SDL_ThreadID(void)
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43 {
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44 return(0);
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45 }
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46
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47 void SDL_SYS_WaitThread(SDL_Thread *thread)
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48 {
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49 return;
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50 }
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51
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52 void SDL_SYS_KillThread(SDL_Thread *thread)
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53 {
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54 return;
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55 }
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56
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57 #else
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58
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59 #include <signal.h>
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60
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61 /* List of signals to mask in the subthreads */
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62 static int sig_list[] = {
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63 SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCHLD, SIGWINCH,
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64 SIGVTALRM, SIGPROF, 0
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65 };
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66
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67 #include <pthread.h>
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68
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69 int riscos_using_threads = 0;
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70 Uint32 riscos_main_thread = 0; /* Thread running events */
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71
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72 static void *RunThread(void *data)
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73 {
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74 SDL_RunThread(data);
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75 pthread_exit((void*)0);
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76 return((void *)0); /* Prevent compiler warning */
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77 }
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78
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79 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
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80 {
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81 pthread_attr_t type;
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82
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83 /* Set the thread attributes */
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84 if ( pthread_attr_init(&type) != 0 ) {
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85 SDL_SetError("Couldn't initialize pthread attributes");
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86 return(-1);
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87 }
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88 pthread_attr_setdetachstate(&type, PTHREAD_CREATE_JOINABLE);
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89
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90 /* Create the thread and go! */
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91 if ( pthread_create(&thread->handle, &type, RunThread, args) != 0 ) {
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92 SDL_SetError("Not enough resources to create thread");
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93 return(-1);
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94 }
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95
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96 if (riscos_using_threads == 0)
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97 {
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98 riscos_using_threads = 1;
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99 riscos_main_thread = SDL_ThreadID();
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100 }
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101
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102 return(0);
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103 }
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104
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105 void SDL_SYS_SetupThread(void)
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106 {
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107 int i;
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108 sigset_t mask;
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109
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110 /* Mask asynchronous signals for this thread */
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111 sigemptyset(&mask);
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112 for ( i=0; sig_list[i]; ++i ) {
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113 sigaddset(&mask, sig_list[i]);
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114 }
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115 pthread_sigmask(SIG_BLOCK, &mask, 0);
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116
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117 #ifdef PTHREAD_CANCEL_ASYNCHRONOUS
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118 /* Allow ourselves to be asynchronously cancelled */
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119 { int oldstate;
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120 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &oldstate);
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121 }
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122 #endif
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123 }
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124
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125 Uint32 SDL_ThreadID(void)
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126 {
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127 return((Uint32)pthread_self());
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128 }
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129
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130 void SDL_SYS_WaitThread(SDL_Thread *thread)
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131 {
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132 pthread_join(thread->handle, 0);
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133 }
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134
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135 void SDL_SYS_KillThread(SDL_Thread *thread)
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136 {
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137 #ifdef PTHREAD_CANCEL_ASYNCHRONOUS
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138 pthread_cancel(thread->handle);
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139 #else
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140 pthread_kill(thread->handle, SIGKILL);
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141 #endif
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142 }
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143
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144 #endif