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annotate src/video/ataricommon/SDL_biosevents.c @ 2185:2032348afed1

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This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is available and to keep people form having to install yet another library I have added the essential parts of Xmu in src/video/extensions/XmuStdCmap and an include file in src/video/extensions. The support makes use of standard X11 mechanisms to create color maps and make sure that an application uses the same color map for each window/visual combination. This should make it possible for gamma support to be implemented based on a single color map per application. Hurm... it looks like "make indent" modified a few extra files. Those are getting committed too.
author Bob Pendleton <bob@pendleton.com>
date Thu, 12 Jul 2007 20:00:50 +0000
parents adf732f1f016
children 99210400e8b9
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 #include "SDL_config.h"
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23
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24 /*
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25 * Atari keyboard events manager, using BIOS
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26 *
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27 * Patrice Mandin
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28 */
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29
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30 /* Mint includes */
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31 #include <mint/osbind.h>
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32 #include <mint/cookie.h>
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33
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34 #include "../../events/SDL_sysevents.h"
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35 #include "../../events/SDL_events_c.h"
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36
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37 #include "SDL_atarikeys.h"
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38 #include "SDL_atarievents_c.h"
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39 #include "SDL_xbiosevents_c.h"
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40 #include "SDL_ataridevmouse_c.h"
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41
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42 static unsigned char bios_currentkeyboard[ATARIBIOS_MAXKEYS];
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43 static unsigned char bios_previouskeyboard[ATARIBIOS_MAXKEYS];
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44 static SDL_bool use_dev_mouse = SDL_FALSE;
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45
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46 static void UpdateSpecialKeys(int special_keys_state);
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47
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48 void
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49 AtariBios_InitOSKeymap(_THIS)
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50 {
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51 int i, vectors_mask;
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52 unsigned long dummy;
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53
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54 SDL_memset(bios_currentkeyboard, 0, sizeof(bios_currentkeyboard));
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55 SDL_memset(bios_previouskeyboard, 0, sizeof(bios_previouskeyboard));
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56
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57 use_dev_mouse = (SDL_AtariDevMouse_Open() != 0) ? SDL_TRUE : SDL_FALSE;
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58
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59 vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
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60 if (!use_dev_mouse) {
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61 vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
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62 }
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63 /*if (Getcookie(C_MiNT, &dummy) == C_FOUND) {
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64 vectors_mask = 0;
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65 } */
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66
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67 SDL_AtariXbios_InstallVectors(vectors_mask);
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68 }
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69
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70 void
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71 AtariBios_PumpEvents(_THIS)
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72 {
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73 int i;
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74 SDL_keysym keysym;
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75
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76 /* Update pressed keys */
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77 SDL_memset(bios_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
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78
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79 while (Bconstat(_CON)) {
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80 unsigned long key_pressed;
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81 key_pressed = Bconin(_CON);
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82 bios_currentkeyboard[(key_pressed >> 16) & (ATARIBIOS_MAXKEYS - 1)] =
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83 0xFF;
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84 }
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85
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86 /* Read special keys */
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87 UpdateSpecialKeys(Kbshift(-1));
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88
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89 /* Now generate events */
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90 for (i = 0; i < ATARIBIOS_MAXKEYS; i++) {
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91 /* Key pressed ? */
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92 if (bios_currentkeyboard[i] && !bios_previouskeyboard[i])
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93 SDL_PrivateKeyboard(SDL_PRESSED,
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94 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
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95
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96 /* Key unpressed ? */
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97 if (bios_previouskeyboard[i] && !bios_currentkeyboard[i])
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98 SDL_PrivateKeyboard(SDL_RELEASED,
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99 SDL_Atari_TranslateKey(i, &keysym,
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100 SDL_FALSE));
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101 }
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102
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103 if (use_dev_mouse) {
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104 SDL_AtariDevMouse_PostMouseEvents(_this, SDL_TRUE);
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105 } else {
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106 SDL_AtariXbios_PostMouseEvents(_this, SDL_TRUE);
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107 }
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108
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109 /* Will be previous table */
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110 SDL_memcpy(bios_previouskeyboard, bios_currentkeyboard,
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111 sizeof(bios_previouskeyboard));
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112 }
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113
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114 static void
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115 UpdateSpecialKeys(int special_keys_state)
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116 {
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117 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
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118 { \
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119 if (special_keys_state & (1<<(numbit))) { \
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120 bios_currentkeyboard[scancode]=0xFF; \
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121 } \
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122 }
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123
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124 UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
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125 UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
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126 UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
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127 UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
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128 UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
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129 }
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130
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131 void
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132 AtariBios_ShutdownEvents(void)
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133 {
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134 SDL_AtariXbios_RestoreVectors();
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135 if (use_dev_mouse) {
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136 SDL_AtariDevMouse_Close();
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137 }
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138 }
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139
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140 /* vi: set ts=4 sw=4 expandtab: */