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annotate src/video/ataricommon/SDL_xbiosevents.c @ 1318:f95502c6fc72

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Eliminate duplicate modes with different refresh rates
author Sam Lantinga <slouken@libsdl.org>
date Wed, 01 Feb 2006 09:28:42 +0000
parents c9b51268668f
children 604d73db6802
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
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23 /*
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24 * XBIOS mouse & joystick vectors
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25 *
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26 * Patrice Mandin
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27 */
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28
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31 #include <string.h>
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32
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33 #include <mint/osbind.h>
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34
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35 #include "SDL_events_c.h"
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36 #include "SDL_xbiosevents_c.h"
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37 #include "SDL_xbiosinterrupt_s.h"
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38
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39 /* Variables */
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40
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41 int SDL_AtariXbios_enabled=0;
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42
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43 /* Local variables */
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44
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45 static _KBDVECS *kbdvecs; /* Pointer to access system vectors */
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46 static Uint16 atari_prevmouseb; /* buttons */
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47
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48 /* Functions */
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49
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50 void SDL_AtariXbios_InstallVectors(int vectors_mask)
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51 {
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52 void *oldpile;
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53
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54 /* Clear variables */
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55 SDL_AtariXbios_mouseb =
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56 SDL_AtariXbios_mousex =
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57 SDL_AtariXbios_mousey =
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58 SDL_AtariXbios_joystick =
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59 atari_prevmouseb = 0;
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60
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61 if (vectors_mask==0) {
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62 SDL_AtariXbios_enabled=0;
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63 return;
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64 }
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65
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66 /* Read IKBD vectors base */
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67 kbdvecs=Kbdvbase();
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68
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69 /* Go to supervisor mode */
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70 oldpile=(void *)Super(0);
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71
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72 /* Install our vectors */
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73 SDL_AtariXbios_Install(
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74 kbdvecs,
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75 (vectors_mask & ATARI_XBIOS_MOUSEEVENTS) ? SDL_AtariXbios_MouseVector : NULL,
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76 (vectors_mask & ATARI_XBIOS_JOYSTICKEVENTS) ? SDL_AtariXbios_JoystickVector : NULL
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77 );
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78
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79 /* Back to user mode */
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80 Super(oldpile);
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81
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82 SDL_AtariXbios_enabled=1;
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83 }
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84
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85 void SDL_AtariXbios_RestoreVectors(void)
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86 {
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87 void *oldpile;
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88
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89 if (SDL_AtariXbios_enabled==0) {
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90 return;
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91 }
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92
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93 /* Read IKBD vectors base */
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94 kbdvecs=Kbdvbase();
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95
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96 /* Go to supervisor mode */
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97 oldpile=(void *)Super(NULL);
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98
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99 /* Reinstall system vector */
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100 SDL_AtariXbios_Restore(kbdvecs);
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101
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102 /* Back to user mode */
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103 Super(oldpile);
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104 }
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105
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106 static int atari_GetButton(int button)
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107 {
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108 switch(button)
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109 {
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110 case 0:
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111 return SDL_BUTTON_RIGHT;
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112 break;
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113 case 1:
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114 default:
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115 return SDL_BUTTON_LEFT;
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116 break;
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117 }
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118 }
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119
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120 void SDL_AtariXbios_PostMouseEvents(_THIS, SDL_bool buttonEvents)
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121 {
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122 if (SDL_AtariXbios_enabled==0) {
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123 return;
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124 }
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125
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126 /* Mouse motion ? */
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127 if (SDL_AtariXbios_mousex || SDL_AtariXbios_mousey) {
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128 SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey);
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129 SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = 0;
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130 }
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131
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132 /* Mouse button ? */
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133 if (buttonEvents && (SDL_AtariXbios_mouseb != atari_prevmouseb)) {
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134 int i;
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135
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136 for (i=0;i<2;i++) {
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137 int curbutton, prevbutton;
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138
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139 curbutton = SDL_AtariXbios_mouseb & (1<<i);
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140 prevbutton = atari_prevmouseb & (1<<i);
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141
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142 if (curbutton && !prevbutton) {
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143 SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0);
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144 }
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e9278438fb3b Date: Thu, 04 Apr 2002 13:27:36 GMT+1
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parents: 305
diff changeset
145 if (!curbutton && prevbutton) {
305
9c6613983e85 Atari port cleanups from Patrice
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parents:
diff changeset
146 SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0);
9c6613983e85 Atari port cleanups from Patrice
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parents:
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147 }
9c6613983e85 Atari port cleanups from Patrice
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parents:
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148 }
9c6613983e85 Atari port cleanups from Patrice
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parents:
diff changeset
149 atari_prevmouseb = SDL_AtariXbios_mouseb;
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150 }
9c6613983e85 Atari port cleanups from Patrice
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parents:
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151 }