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annotate src/video/ataricommon/SDL_ikbdevents.c @ 1240:3b8a43c428bb

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From Bug #36: There are a couple of issues with the selection of Altivec alpha-blitting routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c. 1) There's no check for the presence of Altivec when checking if the Blit32to565PixelAlphaAltivec() routine can be selected. 2) Altivec cannot be used in video memory, and there's no check if the destination surface is a hardware surface. (Alpha-blitting to a hardware surface with GPU support is a bad idea, but somebody's bound to do it anyway.) Patch to fix these attached.
author Ryan C. Gordon <icculus@icculus.org>
date Sun, 08 Jan 2006 21:18:15 +0000
parents 8ef3e7e92a91
children c9b51268668f
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@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 * Atari keyboard events manager, using hardware IKBD
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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 <string.h>
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35
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36 /* Mint includes */
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37 #include <mint/osbind.h>
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38
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39 #include "SDL.h"
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40 #include "SDL_sysevents.h"
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41 #include "SDL_events_c.h"
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42
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43 #include "SDL_atarikeys.h"
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44 #include "SDL_atarievents_c.h"
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45 #include "SDL_ikbdinterrupt_s.h"
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46
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47 /* Special keys state */
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48 enum {
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49 K_RSHIFT=0,
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50 K_LSHIFT,
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51 K_CTRL,
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52 K_ALT,
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53 K_CAPSLOCK,
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54 K_CLRHOME,
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55 K_INSERT
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56 };
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57
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58 #define ATARIBIOS_MAXKEYS 128
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59
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60 #define KEY_PRESSED 0xff
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61 #define KEY_UNDEFINED 0x80
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62 #define KEY_RELEASED 0x00
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63
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64 /* The translation tables from a console scancode to a SDL keysym */
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65 #define KT_NOCHANGE -1
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66
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67 enum {
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68 KT_UNSHIFT=0,
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69 KT_SHIFT=1,
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70 KT_CAPS=2
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71 };
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72
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73 static Uint16 atari_prevmouseb; /* save state of mouse buttons */
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74 static int caps_state; /* caps lock state */
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75 _KEYTAB *curtables;
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76 static unsigned char *tab_unshift, *tab_shift, *tab_caps;
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77 static SDLKey keymap[ATARIBIOS_MAXKEYS];
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78
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79 static SDL_keysym *TranslateKey(int scancode, int numkeytable, SDL_keysym *keysym,
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80 SDL_bool pressed);
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81
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82 void AtariIkbd_InitOSKeymap(_THIS)
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83 {
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84 int i;
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85
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86 memset(SDL_AtariIkbd_keyboard, KEY_UNDEFINED, ATARIBIOS_MAXKEYS);
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87
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88 /* Initialize keymap */
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89 for ( i=0; i<sizeof(keymap); i++ )
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90 keymap[i] = SDLK_UNKNOWN;
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91
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92 /* Functions keys */
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93 for ( i = 0; i<10; i++ )
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94 keymap[SCANCODE_F1 + i] = SDLK_F1+i;
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95
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96 /* Cursor keypad */
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97 keymap[SCANCODE_HELP] = SDLK_HELP;
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98 keymap[SCANCODE_UNDO] = SDLK_UNDO;
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99 keymap[SCANCODE_INSERT] = SDLK_INSERT;
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100 keymap[SCANCODE_CLRHOME] = SDLK_HOME;
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101 keymap[SCANCODE_UP] = SDLK_UP;
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102 keymap[SCANCODE_DOWN] = SDLK_DOWN;
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103 keymap[SCANCODE_RIGHT] = SDLK_RIGHT;
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104 keymap[SCANCODE_LEFT] = SDLK_LEFT;
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105
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106 /* Special keys */
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107 keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;
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108 keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;
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109 keymap[SCANCODE_TAB] = SDLK_TAB;
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110 keymap[SCANCODE_ENTER] = SDLK_RETURN;
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111 keymap[SCANCODE_DELETE] = SDLK_DELETE;
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112 keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;
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113 keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;
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114 keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;
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115 keymap[SCANCODE_LEFTALT] = SDLK_LALT;
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116 keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
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117
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118 /* Read XBIOS tables for scancode -> ascii translation */
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119 curtables=Keytbl(KT_NOCHANGE, KT_NOCHANGE, KT_NOCHANGE);
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120 tab_unshift=curtables->unshift;
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121 tab_shift=curtables->shift;
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122 tab_caps=curtables->caps;
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123
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124 /* Set Caps lock initial state */
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125 caps_state=(Kbshift(-1) & (1<<K_CAPSLOCK));
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126
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127 /* Now install our handler */
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128 SDL_AtariIkbd_mouseb = SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
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129 atari_prevmouseb = 0;
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130
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131 Supexec(SDL_AtariIkbdInstall);
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132 }
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133
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134 static int atari_GetButton(int button)
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135 {
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136 switch(button)
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137 {
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138 case 0:
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139 return SDL_BUTTON_RIGHT;
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parents:
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140 break;
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parents:
diff changeset
141 case 1:
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parents:
diff changeset
142 default:
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143 return SDL_BUTTON_LEFT;
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parents:
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144 break;
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parents:
diff changeset
145 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 }
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147
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148 void AtariIkbd_PumpEvents(_THIS)
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149 {
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150 int i;
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151 SDL_keysym keysym;
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152 int specialkeys;
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153
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parents:
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154 /*--- Send keyboard events ---*/
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parents:
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155
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parents:
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156 /* Update caps lock state */
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diff changeset
157 if (SDL_AtariIkbd_keyboard[SCANCODE_CAPSLOCK]==KEY_PRESSED) {
281
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158 caps_state ^= 1;
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diff changeset
159 }
281
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160
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parents:
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161 /* Choose the translation table */
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162 specialkeys=KT_UNSHIFT;
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diff changeset
163 if ((SDL_AtariIkbd_keyboard[SCANCODE_LEFTSHIFT]==KEY_PRESSED)
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164 || (SDL_AtariIkbd_keyboard[SCANCODE_RIGHTSHIFT]==KEY_PRESSED))
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diff changeset
165 {
281
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166 specialkeys = KT_SHIFT;
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diff changeset
167 }
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168 if (caps_state) {
281
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169 specialkeys = KT_CAPS;
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diff changeset
170 }
281
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171
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172 /* Now generate events */
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173 for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
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174 /* Key pressed ? */
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175 if (SDL_AtariIkbd_keyboard[i]==KEY_PRESSED) {
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diff changeset
176 SDL_PrivateKeyboard(SDL_PRESSED,
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177 TranslateKey(i, specialkeys, &keysym, SDL_TRUE));
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178 SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
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179 }
281
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180
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181 /* Key released ? */
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diff changeset
182 if (SDL_AtariIkbd_keyboard[i]==KEY_RELEASED) {
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183 SDL_PrivateKeyboard(SDL_RELEASED,
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184 TranslateKey(i, specialkeys, &keysym, SDL_FALSE));
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185 SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
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diff changeset
186 }
281
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187 }
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188
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189 /*--- Send mouse events ---*/
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190
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191 /* Mouse motion ? */
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192 if (SDL_AtariIkbd_mousex || SDL_AtariIkbd_mousey) {
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193 SDL_PrivateMouseMotion(0, 1, SDL_AtariIkbd_mousex, SDL_AtariIkbd_mousey);
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194 SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
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195 }
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diff changeset
196
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197 /* Mouse button ? */
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198 if (SDL_AtariIkbd_mouseb != atari_prevmouseb) {
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199 for (i=0;i<2;i++) {
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diff changeset
200 int curbutton, prevbutton;
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diff changeset
201
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diff changeset
202 curbutton = SDL_AtariIkbd_mouseb & (1<<i);
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diff changeset
203 prevbutton = atari_prevmouseb & (1<<i);
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parents:
diff changeset
204
331
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diff changeset
205 if (curbutton && !prevbutton) {
281
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diff changeset
206 SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0);
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parents:
diff changeset
207 }
331
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parents: 297
diff changeset
208 if (!curbutton && prevbutton) {
281
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diff changeset
209 SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0);
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parents:
diff changeset
210 }
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parents:
diff changeset
211 }
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parents:
diff changeset
212 atari_prevmouseb = SDL_AtariIkbd_mouseb;
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diff changeset
213 }
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parents:
diff changeset
214 }
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
215
1209
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diff changeset
216 static SDL_keysym *TranslateKey(int scancode, int numkeytable, SDL_keysym *keysym,
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parents: 1082
diff changeset
217 SDL_bool pressed)
281
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parents:
diff changeset
218 {
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parents:
diff changeset
219 unsigned char asciicode;
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
220
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
221 /* Set the keysym information */
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parents:
diff changeset
222 keysym->scancode = scancode;
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
223
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
224 asciicode=0;
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parents:
diff changeset
225 switch(numkeytable) {
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parents:
diff changeset
226 case KT_UNSHIFT:
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parents:
diff changeset
227 asciicode=tab_unshift[scancode];
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parents:
diff changeset
228 break;
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parents:
diff changeset
229 case KT_SHIFT:
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diff changeset
230 asciicode=tab_shift[scancode];
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parents:
diff changeset
231 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 case KT_CAPS:
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parents:
diff changeset
233 asciicode=tab_caps[scancode];
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 }
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
237 if (asciicode)
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parents:
diff changeset
238 keysym->sym = asciicode;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 else
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parents:
diff changeset
240 keysym->sym = keymap[scancode];
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parents:
diff changeset
241
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
242 keysym->mod = KMOD_NONE;
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parents:
diff changeset
243 keysym->unicode = 0;
1221
8ef3e7e92a91 Use a simple table for Unicode translation
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parents: 1209
diff changeset
244 if (SDL_TranslateUNICODE && pressed) {
8ef3e7e92a91 Use a simple table for Unicode translation
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parents: 1209
diff changeset
245 keysym->unicode = SDL_AtariToUnicodeTable[asciicode];
1209
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parents: 1082
diff changeset
246 }
281
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parents:
diff changeset
247
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
248 return(keysym);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 }
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
250
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parents:
diff changeset
251 void AtariIkbd_ShutdownEvents(void)
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parents:
diff changeset
252 {
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parents:
diff changeset
253 Supexec(SDL_AtariIkbdUninstall);
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parents:
diff changeset
254 }