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annotate src/video/photon/SDL_ph_mouse.c @ 588:2c6510c0a304

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Darrell added support for emulated SDL_DOUBLEBUF on MacOSX
author Sam Lantinga <slouken@libsdl.org>
date Sat, 01 Feb 2003 19:59:23 +0000
parents 8e3ce997621c
children 8bedd6d61642
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 #include <stdlib.h>
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29 #include <stdio.h>
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30 #include <string.h>
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31
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32 #include "SDL_error.h"
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33 #include "SDL_mouse.h"
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34 #include "SDL_events_c.h"
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35 #include "SDL_cursor_c.h"
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36 #include "SDL_ph_mouse_c.h"
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37
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38 struct WMcursor
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39 {
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40 PhCursorDef_t *ph_cursor ;
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41 };
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42
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43 void ph_FreeWMCursor(_THIS, WMcursor *cursor)
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44 {
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45 if (window != NULL)
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46 {
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47 SDL_Lock_EventThread();
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48
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49 if (PtSetResource( window, Pt_ARG_CURSOR_TYPE, Ph_CURSOR_INHERIT, 0) < 0)
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50 {
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51 /* TODO: output error msg */
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52 }
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53
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54 SDL_Unlock_EventThread();
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55 }
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56 /* free(cursor->ph_cursor.images); */
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57 free(cursor);
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58 }
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59
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60 WMcursor *ph_CreateWMCursor(_THIS,
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61 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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62 {
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63 WMcursor* cursor;
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64 int clen, i;
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65 unsigned char bit, databit, maskbit;
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66
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67 /* Allocate and initialize the cursor memory */
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68 if ((cursor = (WMcursor*)malloc(sizeof(WMcursor))) == NULL)
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69 {
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70 SDL_OutOfMemory();
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71 return(NULL);
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72 }
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73 memset(cursor,0,sizeof(WMcursor));
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74
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75 cursor->ph_cursor = (PhCursorDef_t *) malloc(sizeof(PhCursorDef_t) + 32*4*2);
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76 if (cursor->ph_cursor == NULL)
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77 printf("cursor malloc failed\n");
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78
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79 memset(cursor->ph_cursor,0,(sizeof(PhCursorDef_t) + 32*4*2));
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80
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81 cursor->ph_cursor->hdr.type =Ph_RDATA_CURSOR;
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82 cursor->ph_cursor->size1.x = (short)w;
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83 cursor->ph_cursor->size1.y = (short)h;
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84 cursor->ph_cursor->offset1.x = (short)hot_x;
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85 cursor->ph_cursor->offset1.y = (short)hot_y;
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86 cursor->ph_cursor->bytesperline1 = (char)w/8;
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87 cursor->ph_cursor->color1 = Pg_WHITE;
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88 cursor->ph_cursor->size2.x = (short)w;
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89 cursor->ph_cursor->size2.y = (short)h;
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90 cursor->ph_cursor->offset2.x = (short)hot_x;
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91 cursor->ph_cursor->offset2.y = (short)hot_y;
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92 cursor->ph_cursor->bytesperline2 = (char)w/8;
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93 cursor->ph_cursor->color2 = Pg_BLACK;
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94
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95 clen = (w/8)*h;
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96
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97 /* Copy the mask and the data to different bitmap planes */
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98 for (i=0; i<clen; ++i)
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99 {
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100 for (bit = 0; bit < 8; bit++)
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101 {
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102 databit = data[i] & (1 << bit);
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103 maskbit = mask[i] & (1 << bit);
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104
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105 cursor->ph_cursor->images[i] |= (databit == 0) ? maskbit : 0;
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106 /* If the databit != 0, treat it as a black pixel and
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107 * ignore the maskbit (can't do an inverted color) */
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108 cursor->ph_cursor->images[i+clen] |= databit;
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109 }
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110 }
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111
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112 /* #bytes following the hdr struct */
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113 cursor->ph_cursor->hdr.len =sizeof(PhCursorDef_t) + clen*2 - sizeof(PhRegionDataHdr_t);
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114
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115 return (cursor);
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116 }
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117
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118 PhCursorDef_t ph_GetWMPhCursor(WMcursor *cursor)
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119 {
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120 return(*cursor->ph_cursor);
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121 }
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122
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123 int ph_ShowWMCursor(_THIS, WMcursor *cursor)
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124 {
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125 PtArg_t args[3];
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126 int nargs = 0;
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127
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128 /* Don't do anything if the display is gone */
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129 if (window == NULL)
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130 {
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131 return (0);
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132 }
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133
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134 /* looks like photon can't draw mouse cursor in direct mode */
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135 if ((this->screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
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136 {
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137 return (0);
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138 }
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139
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140 /* Set the photon cursor cursor, or blank if cursor is NULL */
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141 if (cursor!=NULL)
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142 {
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143 PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_BITMAP, 0);
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144 /* Could set next to any PgColor_t value */
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145 PtSetArg(&args[1], Pt_ARG_CURSOR_COLOR, Ph_CURSOR_DEFAULT_COLOR , 0);
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146 PtSetArg(&args[2], Pt_ARG_BITMAP_CURSOR, cursor->ph_cursor, (cursor->ph_cursor->hdr.len + sizeof(PhRegionDataHdr_t)));
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147 nargs = 3;
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148 }
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149 else /* Ph_CURSOR_NONE */
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150 {
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151 PtSetArg( &args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_NONE, 0);
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152 nargs = 1;
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153 }
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154
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155 SDL_Lock_EventThread();
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156
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157 if (PtSetResources(window, nargs, args) < 0 )
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158 {
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159 return (0);
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160 }
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161
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162 SDL_Unlock_EventThread();
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163
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164 return (1);
0
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165 }
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166
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167 void ph_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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168 {
315
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169 short abs_x, abs_y;
283
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170
315
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171 SDL_Lock_EventThread();
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172 PtGetAbsPosition( window, &abs_x, &abs_y );
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173 PhMoveCursorAbs( PhInputGroup(NULL), x + abs_x, y + abs_y );
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174 SDL_Unlock_EventThread();
0
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175 }
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176
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177
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178 void ph_CheckMouseMode(_THIS)
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179 {
315
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180 /* If the mouse is hidden and input is grabbed, we use relative mode */
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181 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && (this->input_grab != SDL_GRAB_OFF))
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182 {
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183 mouse_relative = 1;
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184 }
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185 else
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186 {
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187 mouse_relative = 0;
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188 }
0
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189 }