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annotate src/video/gem/SDL_gemmouse.c @ 641:df178851293b

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Date: 28 Jun 2003 22:42:52 +0100 From: Alan Swanson Subject: Re: [SDL] New XFree 4.3 Video Mode Patch I have a wee amendment that moves the qsort in set_best_resolution to only occur after failing to find an exact match only. This would make absolutely sure we get a user set mode. While I've never had any problems for my normal resolutions (1280x1024, 1024x768, 800x600 & 640,480) while closely examining the output from qsort I've noticed it doesn't seem to sort the modes fully. These is one definite wrong at 1152x768 and a few that just look wrong to me. From a program (attached) I made to examine this more easily. X has sorted its mode list using the same method as ours (plus frequency), and our user modes get inserted without any other movement. On the patch I've made I've also changed cmpmodes to sort on vertical resolution and then horizontal. Ie vertical is now most significant bit.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 28 Jun 2003 21:52:26 +0000
parents 189a6a3416c7
children 028e03e273c8
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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f6ffac90895c Updated copyright information for 2002
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
281
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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 * GEM Mouse manager
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30 *
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31 * Patrice Mandin
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32 */
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33
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34 #include <stdlib.h>
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35
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36 #include <gem.h>
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37
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38 #include "SDL_error.h"
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39 #include "SDL_mouse.h"
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40 #include "SDL_events_c.h"
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41 #include "SDL_cursor_c.h"
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42 #include "SDL_gemmouse_c.h"
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43
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44 /* Defines */
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45
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46 #define MAXCURWIDTH 16
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47 #define MAXCURHEIGHT 16
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48
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49 /* The implementation dependent data for the window manager cursor */
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50 struct WMcursor {
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51 MFORM *mform_p;
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52 };
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53
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54
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55 void GEM_FreeWMCursor(_THIS, WMcursor *cursor)
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56 {
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57 if (cursor == NULL)
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58 return;
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59
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60 graf_mouse(ARROW, NULL);
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61
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62 if (cursor->mform_p != NULL)
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63 free(cursor->mform_p);
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64
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65 free(cursor);
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66 }
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67
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68 WMcursor *GEM_CreateWMCursor(_THIS,
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69 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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70 {
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71 WMcursor *cursor;
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72 MFORM *new_mform;
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73 int i;
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74
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75 /* Check the size */
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76 if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) {
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77 SDL_SetError("Only cursors of dimension (%dx%d) are allowed",
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78 MAXCURWIDTH, MAXCURHEIGHT);
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79 return(NULL);
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80 }
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81
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82 /* Allocate the cursor memory */
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83 cursor = (WMcursor *)malloc(sizeof(WMcursor));
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84 if ( cursor == NULL ) {
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85 SDL_OutOfMemory();
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86 return(NULL);
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87 }
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88
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89 /* Allocate mform */
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90 new_mform = (MFORM *)malloc(sizeof(MFORM));
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91 if (new_mform == NULL) {
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92 free(cursor);
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93 SDL_OutOfMemory();
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94 return(NULL);
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95 }
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96
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97 cursor->mform_p = new_mform;
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98
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99 new_mform->mf_xhot = hot_x;
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100 new_mform->mf_yhot = hot_y;
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101 new_mform->mf_nplanes = 1;
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102 new_mform->mf_fg = 0;
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103 new_mform->mf_bg = 1;
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104
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105 for (i=0;i<MAXCURHEIGHT;i++)
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106 {
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107 new_mform->mf_mask[i]=0;
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108 new_mform->mf_data[i]=0;
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109 }
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110
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111 if (w<=8) {
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112 for (i=0;i<h;i++)
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113 {
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114 new_mform->mf_mask[i]= mask[i]<<8;
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115 new_mform->mf_data[i]= data[i]<<8;
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116 }
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117 } else {
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118 for (i=0;i<h;i++)
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119 {
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120 new_mform->mf_mask[i]= mask[i<<1]<<8 | mask[(i<<1)+1];
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121 new_mform->mf_data[i]= data[i<<1]<<8 | data[(i<<1)+1];
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122 }
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123 }
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124
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125 return cursor;
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126 }
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127
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128 int GEM_ShowWMCursor(_THIS, WMcursor *cursor)
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129 {
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130 if (cursor == NULL) {
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131 graf_mouse(M_OFF, NULL);
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132 } else if (cursor->mform_p) {
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133 graf_mouse(USER_DEF, cursor->mform_p);
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134 }
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135
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136 return 1;
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137 }
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138
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139 #if 0
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140 void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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141 {
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142 /* This seems to work only on AES 3.4 (Falcon) */
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143
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144 EVNTREC warpevent;
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145
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146 warpevent.ap_event = APPEVNT_MOUSE;
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147 warpevent.ap_value = (x << 16) | y;
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148
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149 appl_tplay(&warpevent, 1, 1000);
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150 }
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151 #endif
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152
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153 void GEM_CheckMouseMode(_THIS)
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154 {
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155 /* If the mouse is hidden and input is grabbed, we use relative mode */
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156 if ( !(SDL_cursorstate & CURSOR_VISIBLE) &&
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157 (this->input_grab != SDL_GRAB_OFF) &&
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158 (SDL_GetAppState() & SDL_APPACTIVE) ) {
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159 GEM_mouse_relative = SDL_TRUE;
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160 } else {
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161 GEM_mouse_relative = SDL_FALSE;
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162 }
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163 }