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annotate src/video/riscos/SDL_wimppoll.c @ 1035:974ba6ae0fa3

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Date: Wed, 26 Jan 2005 13:37:09 GMT From: Peter Naulls Subject: RISC OS SDL Patches Sam, I've attached a diff of the latest changes to libSDL for RISC OS support. These changes are by Alan Buckley and myself. The most significant of these are: Optimised assembler blit rountines - I've attached the file src/video/riscos/SDL_riscosASM.s which is needed for this. Move to using /dev/dsp instead of its own audio implementation. This means that src/audio/riscos/SDL_drenderer.c should be removed Typo fixes. Mainly correct spelling of "RISC OS", but some from elsewhere too.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 12 Feb 2005 18:01:31 +0000
parents d74fbf56f2f6
children d90b362628ea
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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@devolution.com
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21 */
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22
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23 /*
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24 File added by Alan Buckley (alan_baa@hotmail.com) for RISC OS compatability
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25 27 March 2003
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26
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27 Implements Pumping of events and WIMP polling
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28 */
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29
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30 #include "SDL.h"
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31 #include "SDL_syswm.h"
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32 #include "SDL_sysevents.h"
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33 #include "SDL_events_c.h"
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34 #include "SDL_riscosvideo.h"
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35 #include "SDL_riscosevents_c.h"
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36 #include "SDL_riscosmouse_c.h"
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37 #include "SDL_timer_c.h"
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38
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39 #include "memory.h"
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40 #include "stdlib.h"
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41 #include "ctype.h"
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42
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43 #include "kernel.h"
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44 #include "swis.h"
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45 #include "unixlib/os.h"
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46
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47 #ifndef DISABLE_THREADS
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48 #include <pthread.h>
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49 #endif
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50
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51 /* Local functions */
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52 void WIMP_Poll(_THIS, int waitTime);
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53 void WIMP_SetFocus(int win);
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54
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55 /* SDL_riscossprite functions */
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56 void WIMP_PlotSprite(_THIS, int x, int y);
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57 void WIMP_ModeChanged(_THIS);
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58 void WIMP_PaletteChanged(_THIS);
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59
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60
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61 extern void WIMP_PollMouse(_THIS);
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62 extern void RISCOS_PollKeyboard();
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63
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64 #ifdef DISABLE_THREADS
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65 /* Timer running function */
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66 extern void RISCOS_CheckTimer();
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67
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68 #else
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69 extern int riscos_using_threads;
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70 #endif
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71
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72 /* Mouse cursor handling */
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73 extern void WIMP_ReshowCursor(_THIS);
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74
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75 int hasFocus = 0;
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76 int mouseInWindow = 0;
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77
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78 /* Flag to ensure window is correct size after a mode change */
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79 static int resizeOnOpen = 0;
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80
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81 void WIMP_PumpEvents(_THIS)
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82 {
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83 WIMP_Poll(this, 0);
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84 if (hasFocus) RISCOS_PollKeyboard();
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85 if (mouseInWindow) WIMP_PollMouse(this);
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86 #ifdef DISABLE_THREADS
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87 if (SDL_timer_running) RISCOS_CheckTimer();
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88 #endif
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89 }
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90
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91
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92 void WIMP_Poll(_THIS, int waitTime)
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93 {
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94 _kernel_swi_regs regs;
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95 int message[64];
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96 unsigned int code;
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97 int pollMask = 0;
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98 int doPoll = 1;
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99 int sysEvent;
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100 int sdlWindow = this->hidden->window_handle;
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101
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102 if (this->PumpEvents != WIMP_PumpEvents) return;
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103
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104 if (waitTime > 0)
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105 {
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106 _kernel_swi(OS_ReadMonotonicTime, &regs, &regs);
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107 waitTime += regs.r[0];
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108 }
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109
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110 while (doPoll)
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111 {
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112 #ifndef DISABLE_THREADS
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113 /* Stop thread callbacks while program is paged out */
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114 if (riscos_using_threads) __pthread_stop_ticker();
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115 #endif
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116
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117 if (waitTime <= 0)
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118 {
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119 regs.r[0] = pollMask; /* Poll Mask */
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120 /* For no wait time mask out null event so we wait until something happens */
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121 if (waitTime < 0) regs.r[0] |= 1;
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122 regs.r[1] = (int)message;
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123 _kernel_swi(Wimp_Poll, &regs, &regs);
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124 } else
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125 {
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126 regs.r[0] = pollMask;
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127 regs.r[1] = (int)message;
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128 regs.r[2] = waitTime;
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129 _kernel_swi(Wimp_PollIdle, &regs, &regs);
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130 }
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131
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132 /* Flag to specify if we post a SDL_SysWMEvent */
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133 sysEvent = 0;
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134
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135 code = (unsigned int)regs.r[0];
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136
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137 switch(code)
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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138 {
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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139 case 0: /* Null Event - drop out for standard processing*/
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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140 doPoll = 0;
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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141 break;
630
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parents:
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142
955
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
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143 case 1: /* Redraw window */
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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144 _kernel_swi(Wimp_RedrawWindow, &regs,&regs);
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parents: 769
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145 if (message[0] == sdlWindow)
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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146 {
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Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
147 while (regs.r[0])
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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148 {
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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149 WIMP_PlotSprite(this, message[1], message[2]);
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Sam Lantinga <slouken@libsdl.org>
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150 _kernel_swi(Wimp_GetRectangle, &regs, &regs);
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100
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parents: 769
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151 }
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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152 } else
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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153 {
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parents: 769
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154 /* TODO: Currently we just eat them - we may need to pass them on */
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
155 while (regs.r[0])
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Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
156 {
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
157 _kernel_swi(Wimp_GetRectangle, &regs, &regs);
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parents: 769
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158 }
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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159 }
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Sam Lantinga <slouken@libsdl.org>
parents: 769
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160 break;
630
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161
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162 case 2: /* Open window */
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163 if ( resizeOnOpen && message[0] == sdlWindow)
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164 {
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165 /* Ensure window is correct size */
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166 resizeOnOpen = 0;
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Sam Lantinga <slouken@libsdl.org>
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167 message[3] = message[1] + (this->screen->w << this->hidden->xeig);
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168 message[4] = message[2] + (this->screen->h << this->hidden->yeig);
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169 }
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170 _kernel_swi(Wimp_OpenWindow, &regs, &regs);
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171 break;
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172
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173 case 3: /* Close window */
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174 if (message[0] == sdlWindow)
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175 {
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Sam Lantinga <slouken@libsdl.org>
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176 /* Documentation makes it looks as if the following line is correct:
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Sam Lantinga <slouken@libsdl.org>
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177 ** if (SDL_PrivateQuit() == 1) _kernel_swi(Wimp_CloseWindow, &regs, &regs);
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178 ** However some programs don't process this message and so sit there invisibly
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179 ** in the background so I just post the quit message and hope the application
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180 ** does the correct thing.
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Sam Lantinga <slouken@libsdl.org>
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181 */
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182 SDL_PrivateQuit();
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183 } else
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184 sysEvent = 1;
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185 doPoll = 0;
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186 break;
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187
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188 case 4: /* Pointer_Leaving_Window */
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189 if (message[0] == sdlWindow)
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Sam Lantinga <slouken@libsdl.org>
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190 {
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191 mouseInWindow = 0;
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192 //TODO: Lose buttons / dragging
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193 /* Reset to default pointer */
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194 regs.r[0] = 106;
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195 regs.r[1] = 1;
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Sam Lantinga <slouken@libsdl.org>
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196 regs.r[2] = 0;
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197 _kernel_swi(OS_Byte, &regs, &regs);
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198 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
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199 } else
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200 sysEvent = 1;
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Sam Lantinga <slouken@libsdl.org>
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201 break;
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202
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203 case 5: /* Pointer_Entering_Window */
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Sam Lantinga <slouken@libsdl.org>
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204 if (message[0] == sdlWindow)
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Sam Lantinga <slouken@libsdl.org>
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205 {
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206 mouseInWindow = 1;
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Sam Lantinga <slouken@libsdl.org>
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207 WIMP_ReshowCursor(this);
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208 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
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209 } else sysEvent = 1;
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Sam Lantinga <slouken@libsdl.org>
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210 break;
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211
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212 case 6: /* Mouse_Click */
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Sam Lantinga <slouken@libsdl.org>
parents:
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213 if (hasFocus == 0)
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Sam Lantinga <slouken@libsdl.org>
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214 {
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215 /* First click gives focus if it's not a menu */
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diff changeset
216 /* we only count non-menu clicks on a window that has the focus */
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217 WIMP_SetFocus(message[3]);
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Sam Lantinga <slouken@libsdl.org>
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218 } else
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
219 doPoll = 0; // So PollMouse gets a chance to pick it up
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Sam Lantinga <slouken@libsdl.org>
parents:
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220 break;
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221
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Sam Lantinga <slouken@libsdl.org>
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222 case 7: /* User_Drag_Box - Used for mouse release */
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223 //TODO: May need to implement this in the future
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diff changeset
224 sysEvent = 1;
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
225 break;
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226
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Sam Lantinga <slouken@libsdl.org>
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227 case 8: /* Keypressed */
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Sam Lantinga <slouken@libsdl.org>
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228 doPoll = 0; /* PollKeyboard should pick it up */
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Sam Lantinga <slouken@libsdl.org>
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229 if (message[0] != sdlWindow) sysEvent = 1;
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parents:
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230 /*TODO: May want to always pass F12 etc to the wimp
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231 {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 regs.r[0] = message[6];
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Sam Lantinga <slouken@libsdl.org>
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233 _kernel_swi(Wimp_ProcessKey, &regs, &regs);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236 break;
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237
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Sam Lantinga <slouken@libsdl.org>
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238 case 11: /* Lose Caret */
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Sam Lantinga <slouken@libsdl.org>
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239 hasFocus = 0;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 if (message[0] == sdlWindow) SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 else sysEvent = 1;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243
550bccdf04bd Added initial support for RISC OS (thanks Peter Naulls!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 case 12: /* Gain Caret */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 hasFocus = 1;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246 if (message[0] == sdlWindow) SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 else sysEvent = 1;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 break;
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249
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 case 17:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 case 18:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 sysEvent = 1; /* All messages are passed on */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 switch(message[4])
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 case 0: /* Quit Event */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257 /* No choice - have to quit */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258 SDL_Quit();
550bccdf04bd Added initial support for RISC OS (thanks Peter Naulls!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259 exit(0);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
260 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
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261
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262 case 8: /* Pre Quit */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 SDL_PrivateQuit();
550bccdf04bd Added initial support for RISC OS (thanks Peter Naulls!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266 case 0x400c1: /* Mode change */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 WIMP_ModeChanged(this);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 resizeOnOpen = 1;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269 break;
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Sam Lantinga <slouken@libsdl.org>
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270
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Sam Lantinga <slouken@libsdl.org>
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271 case 9: /* Palette changed */
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Sam Lantinga <slouken@libsdl.org>
parents:
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272 WIMP_PaletteChanged(this);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
273 break;
550bccdf04bd Added initial support for RISC OS (thanks Peter Naulls!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
275 break;
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276
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Sam Lantinga <slouken@libsdl.org>
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277 default:
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Sam Lantinga <slouken@libsdl.org>
parents:
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278 /* Pass unknown events on */
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
279 sysEvent = 1;
550bccdf04bd Added initial support for RISC OS (thanks Peter Naulls!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
280 break;
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281 }
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282
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283 if (sysEvent)
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284 {
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285 SDL_SysWMmsg wmmsg;
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286
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287 SDL_VERSION(&wmmsg.version);
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288 wmmsg.eventCode = code;
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289 memcpy(wmmsg.pollBlock, message, 64 * sizeof(int));
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290
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291 /* Fall out of polling loop if message is successfully posted */
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292 if (SDL_PrivateSysWMEvent(&wmmsg)) doPoll = 0;
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293 }
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294 #ifndef DISABLE_THREADS
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295 if (riscos_using_threads)
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296 {
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297 /* Restart ticker here so other thread can not interfere
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298 with the Redraw processing */
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299 if (riscos_using_threads) __pthread_start_ticker();
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300 /* Give other threads a better chance of running */
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301 pthread_yield();
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302 }
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303 #endif
630
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304 }
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305 }
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306
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307 /* Set focus to specified window */
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308 void WIMP_SetFocus(int win)
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309 {
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310 _kernel_swi_regs regs;
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311
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312 regs.r[0] = win;
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313 regs.r[1] = -1; /* Icon handle */
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314 regs.r[2] = 0; /* X-offset we just put it at position 0 */
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315 regs.r[3] = 0; /* Y-offset as above */
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316 regs.r[4] = 1 << 25; /* Caret is invisible */
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317 regs.r[5] = 0; /* index into string */
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318
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319 _kernel_swi(Wimp_SetCaretPosition, &regs, &regs);
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320 }
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321
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322 /** Run background task while in a sleep command */
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323 void RISCOS_BackgroundTasks(void)
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324 {
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325 if (current_video && current_video->hidden->window_handle)
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326 {
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327 WIMP_Poll(current_video, 0);
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328 }
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329 #ifdef DISABLE_THREADS
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330 if (SDL_timer_running) RISCOS_CheckTimer();
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331 #endif
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332 }