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From: Torsten Giebl Subject: ALLOCA Patch for SDL-1.2 Newsgroups: gmane.comp.lib.sdl Date: 2006-10-24 00:31:16 GMT Hello ! As alloca.h is not available on CYGWIN and MinGW32 it should not be checked there or it should be checked with -mno-cygwin using. I am a total configure.in newbie, but i found the way that things are handled in configure.in pretty bad for the case CYGWIN with MinGW Mode or not. Maybe this is not possible but i would like to have a way to detect at the start for example CYGWIN and then add. ask if configure was called with --enable-cygwin for example. --enable-cygwin should be optional and disabled by default as we want to have MinGW Mode by default. Only if the user wants it he should be able to use it. Then the whole configure.in would get add. questions okay the system is CYGWIN with or without MinGW Mode. The alloca.h thing for example is only available under CYGWIN ( without MinGW Mode ). CU
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 01 Dec 2006 20:25:03 +0000
parents c7803e4c21d3
children 55c7932d1fdb
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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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 * \file SDL_events.h
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25 *
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26 * Include file for SDL event handling
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27 */
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28
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29 #ifndef _SDL_events_h
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30 #define _SDL_events_h
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31
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32 #include "SDL_stdinc.h"
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33 #include "SDL_error.h"
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34 #include "SDL_video.h"
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35 #include "SDL_keyboard.h"
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36 #include "SDL_mouse.h"
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37 #include "SDL_joystick.h"
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38 #include "SDL_quit.h"
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39
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40 #include "begin_code.h"
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41 /* Set up for C function definitions, even when using C++ */
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42 #ifdef __cplusplus
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43 /* *INDENT-OFF* */
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44 extern "C" {
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45 /* *INDENT-ON* */
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46 #endif
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47
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48 /* General keyboard/mouse state definitions */
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49 #define SDL_RELEASED 0
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50 #define SDL_PRESSED 1
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51
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52 /**
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53 * \enum SDL_EventType
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54 *
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55 * \brief The types of events that can be delivered
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56 */
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57 typedef enum
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58 {
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59 SDL_NOEVENT = 0, /**< Unused (do not remove) */
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60 SDL_WINDOWEVENT, /**< Window state change */
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61 SDL_KEYDOWN, /**< Keys pressed */
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62 SDL_KEYUP, /**< Keys released */
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63 SDL_TEXTINPUT, /**< Keyboard text input */
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64 SDL_MOUSEMOTION, /**< Mouse moved */
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65 SDL_MOUSEBUTTONDOWN, /**< Mouse button pressed */
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66 SDL_MOUSEBUTTONUP, /**< Mouse button released */
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67 SDL_MOUSEWHEEL, /**< Mouse wheel motion */
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68 SDL_JOYAXISMOTION, /**< Joystick axis motion */
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69 SDL_JOYBALLMOTION, /**< Joystick trackball motion */
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70 SDL_JOYHATMOTION, /**< Joystick hat position change */
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71 SDL_JOYBUTTONDOWN, /**< Joystick button pressed */
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72 SDL_JOYBUTTONUP, /**< Joystick button released */
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73 SDL_QUIT, /**< User-requested quit */
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74 SDL_SYSWMEVENT, /**< System specific event */
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75 SDL_EVENT_RESERVED1, /**< Reserved for future use... */
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76 SDL_EVENT_RESERVED2, /**< Reserved for future use... */
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77 SDL_EVENT_RESERVED3, /**< Reserved for future use... */
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78 /* Events SDL_USEREVENT through SDL_MAXEVENTS-1 are for your use */
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79 SDL_USEREVENT = 24,
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80 /* This last event is only for bounding internal arrays
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81 It is the number of bits in the event mask datatype -- Uint32
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82 */
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83 SDL_NUMEVENTS = 32
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84 } SDL_EventType;
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85
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86 /**
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87 * \enum SDL_EventMask
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88 *
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89 * \brief Predefined event masks
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90 */
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91 #define SDL_EVENTMASK(X) (1<<(X))
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92 typedef enum
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93 {
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94 SDL_WINDOWEVENTMASK = SDL_EVENTMASK(SDL_WINDOWEVENT),
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95 SDL_KEYDOWNMASK = SDL_EVENTMASK(SDL_KEYDOWN),
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96 SDL_KEYUPMASK = SDL_EVENTMASK(SDL_KEYUP),
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97 SDL_KEYEVENTMASK = SDL_EVENTMASK(SDL_KEYDOWN) | SDL_EVENTMASK(SDL_KEYUP),
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98 SDL_TEXTINPUTMASK = SDL_EVENTMASK(SDL_TEXTINPUT),
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99 SDL_MOUSEMOTIONMASK = SDL_EVENTMASK(SDL_MOUSEMOTION),
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100 SDL_MOUSEBUTTONDOWNMASK = SDL_EVENTMASK(SDL_MOUSEBUTTONDOWN),
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101 SDL_MOUSEBUTTONUPMASK = SDL_EVENTMASK(SDL_MOUSEBUTTONUP),
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102 SDL_MOUSEWHEELMASK = SDL_EVENTMASK(SDL_MOUSEWHEEL),
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103 SDL_MOUSEEVENTMASK = SDL_EVENTMASK(SDL_MOUSEMOTION) |
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104 SDL_EVENTMASK(SDL_MOUSEBUTTONDOWN) | SDL_EVENTMASK(SDL_MOUSEBUTTONUP),
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105 SDL_JOYAXISMOTIONMASK = SDL_EVENTMASK(SDL_JOYAXISMOTION),
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106 SDL_JOYBALLMOTIONMASK = SDL_EVENTMASK(SDL_JOYBALLMOTION),
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107 SDL_JOYHATMOTIONMASK = SDL_EVENTMASK(SDL_JOYHATMOTION),
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108 SDL_JOYBUTTONDOWNMASK = SDL_EVENTMASK(SDL_JOYBUTTONDOWN),
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109 SDL_JOYBUTTONUPMASK = SDL_EVENTMASK(SDL_JOYBUTTONUP),
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110 SDL_JOYEVENTMASK = SDL_EVENTMASK(SDL_JOYAXISMOTION) |
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111 SDL_EVENTMASK(SDL_JOYBALLMOTION) |
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112 SDL_EVENTMASK(SDL_JOYHATMOTION) |
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113 SDL_EVENTMASK(SDL_JOYBUTTONDOWN) | SDL_EVENTMASK(SDL_JOYBUTTONUP),
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114 SDL_QUITMASK = SDL_EVENTMASK(SDL_QUIT),
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115 SDL_SYSWMEVENTMASK = SDL_EVENTMASK(SDL_SYSWMEVENT)
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116 } SDL_EventMask;
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117 #define SDL_ALLEVENTS 0xFFFFFFFF
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118
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119 /**
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120 * \struct SDL_WindowEvent
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121 *
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122 * \brief Window state change event data (event.window.*)
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123 */
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124 typedef struct SDL_WindowEvent
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125 {
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126 Uint8 type; /**< SDL_WINDOWEVENT */
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127 Uint8 event; /**< SDL_WindowEventID */
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128 int data1; /**< event dependent data */
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129 int data2; /**< event dependent data */
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130 SDL_WindowID windowID; /**< The associated window */
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131 } SDL_WindowEvent;
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132
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133 /**
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134 * \struct SDL_KeyboardEvent
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135 *
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136 * \brief Keyboard button event structure (event.key.*)
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137 */
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138 typedef struct SDL_KeyboardEvent
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139 {
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140 Uint8 type; /**< SDL_KEYDOWN or SDL_KEYUP */
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141 Uint8 which; /**< The keyboard device index */
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142 Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
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143 SDL_keysym keysym; /**< The key that was pressed or released */
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144 SDL_WindowID windowID; /**< The window with keyboard focus, if any */
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145 } SDL_KeyboardEvent;
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146
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147 /**
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148 * \struct SDL_TextInputEvent
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149 *
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150 * \brief Keyboard text input event structure (event.text.*)
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151 */
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152 typedef struct SDL_TextInputEvent
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153 {
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154 Uint8 type; /**< SDL_TEXTINPUT */
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155 Uint8 which; /**< The keyboard device index */
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156 char text[32]; /**< The input text */
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157 SDL_WindowID windowID; /**< The window with keyboard focus, if any */
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158 } SDL_TextInputEvent;
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159
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160 /**
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161 * \struct SDL_MouseMotionEvent
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162 *
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163 * \brief Mouse motion event structure (event.motion.*)
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164 */
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165 typedef struct SDL_MouseMotionEvent
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166 {
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167 Uint8 type; /**< SDL_MOUSEMOTION */
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168 Uint8 which; /**< The mouse device index */
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169 Uint8 state; /**< The current button state */
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170 int x; /**< X coordinate, relative to window */
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171 int y; /**< Y coordinate, relative to window */
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172 int xrel; /**< The relative motion in the X direction */
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173 int yrel; /**< The relative motion in the Y direction */
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174 SDL_WindowID windowID; /**< The window with mouse focus, if any */
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175 } SDL_MouseMotionEvent;
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176
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177 /**
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178 * \struct SDL_MouseButtonEvent
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179 *
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180 * \brief Mouse button event structure (event.button.*)
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181 */
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182 typedef struct SDL_MouseButtonEvent
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183 {
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184 Uint8 type; /**< SDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUP */
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185 Uint8 which; /**< The mouse device index */
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186 Uint8 button; /**< The mouse button index */
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187 Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
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188 int x; /**< X coordinate, relative to window */
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189 int y; /**< Y coordinate, relative to window */
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190 SDL_WindowID windowID; /**< The window with mouse focus, if any */
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191 } SDL_MouseButtonEvent;
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192
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193 /**
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194 * \struct SDL_MouseWheelEvent
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195 *
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196 * \brief Mouse wheel event structure (event.wheel.*)
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197 */
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198 typedef struct SDL_MouseWheelEvent
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199 {
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200 Uint8 type; /**< SDL_MOUSEWHEEL */
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201 Uint8 which; /**< The mouse device index */
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202 int motion; /**< The direction and distance scrolled */
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203 SDL_WindowID windowID; /**< The window with mouse focus, if any */
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204 } SDL_MouseWheelEvent;
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205
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206 /**
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207 * \struct SDL_JoyAxisEvent
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208 *
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209 * \brief Joystick axis motion event structure (event.jaxis.*)
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210 */
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211 typedef struct SDL_JoyAxisEvent
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212 {
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213 Uint8 type; /**< SDL_JOYAXISMOTION */
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214 Uint8 which; /**< The joystick device index */
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215 Uint8 axis; /**< The joystick axis index */
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216 int value; /**< The axis value (range: -32768 to 32767) */
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217 } SDL_JoyAxisEvent;
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218
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219 /**
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220 * \struct SDL_JoyBallEvent
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221 *
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222 * \brief Joystick trackball motion event structure (event.jball.*)
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223 */
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224 typedef struct SDL_JoyBallEvent
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225 {
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226 Uint8 type; /**< SDL_JOYBALLMOTION */
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227 Uint8 which; /**< The joystick device index */
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228 Uint8 ball; /**< The joystick trackball index */
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229 int xrel; /**< The relative motion in the X direction */
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230 int yrel; /**< The relative motion in the Y direction */
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231 } SDL_JoyBallEvent;
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232
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233 /**
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234 * \struct SDL_JoyHatEvent
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235 *
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236 * \brief Joystick hat position change event structure (event.jhat.*)
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237 */
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238 typedef struct SDL_JoyHatEvent
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239 {
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240 Uint8 type; /**< SDL_JOYHATMOTION */
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241 Uint8 which; /**< The joystick device index */
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242 Uint8 hat; /**< The joystick hat index */
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243 Uint8 value; /**< The hat position value:
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244 SDL_HAT_LEFTUP SDL_HAT_UP SDL_HAT_RIGHTUP
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245 SDL_HAT_LEFT SDL_HAT_CENTERED SDL_HAT_RIGHT
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246 SDL_HAT_LEFTDOWN SDL_HAT_DOWN SDL_HAT_RIGHTDOWN
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247 Note that zero means the POV is centered.
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248 */
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249 } SDL_JoyHatEvent;
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250
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251 /**
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252 * \struct SDL_JoyButtonEvent
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253 *
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254 * \brief Joystick button event structure (event.jbutton.*)
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255 */
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256 typedef struct SDL_JoyButtonEvent
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257 {
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258 Uint8 type; /**< SDL_JOYBUTTONDOWN or SDL_JOYBUTTONUP */
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259 Uint8 which; /**< The joystick device index */
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260 Uint8 button; /**< The joystick button index */
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261 Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
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262 } SDL_JoyButtonEvent;
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263
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264 /**
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265 * \struct SDL_QuitEvent
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266 *
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267 * \brief The "quit requested" event
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268 */
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269 typedef struct SDL_QuitEvent
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270 {
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271 Uint8 type; /**< SDL_QUIT */
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272 } SDL_QuitEvent;
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273
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274 /**
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275 * \struct SDL_UserEvent
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276 *
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277 * \brief A user-defined event type (event.user.*)
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278 */
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279 typedef struct SDL_UserEvent
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280 {
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281 Uint8 type; /**< SDL_USEREVENT through SDL_NUMEVENTS-1 */
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282 int code; /**< User defined event code */
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283 void *data1; /**< User defined data pointer */
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284 void *data2; /**< User defined data pointer */
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285 } SDL_UserEvent;
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286
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287 /**
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288 * \struct SDL_SysWMEvent
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289 *
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290 * \brief A video driver dependent system event (event.syswm.*)
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291 *
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292 * \note If you want to use this event, you should include SDL_syswm.h
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293 */
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294 struct SDL_SysWMmsg;
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295 typedef struct SDL_SysWMmsg SDL_SysWMmsg;
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296 typedef struct SDL_SysWMEvent
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297 {
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298 Uint8 type; /**< SDL_SYSWMEVENT */
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299 SDL_SysWMmsg *msg; /**< driver dependent data, defined in SDL_syswm.h */
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300 } SDL_SysWMEvent;
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301
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302 /* Typedefs for backwards compatibility */
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303 typedef struct SDL_ActiveEvent
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304 {
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305 Uint8 type;
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306 Uint8 gain;
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307 Uint8 state;
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308 } SDL_ActiveEvent;
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309 typedef struct SDL_ResizeEvent
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310 {
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311 Uint8 type;
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312 int w;
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313 int h;
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314 } SDL_ResizeEvent;
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315
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316 /**
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317 * \union SDL_Event
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318 *
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319 * \brief General event structure
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320 */
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321 typedef union SDL_Event
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322 {
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323 Uint8 type; /**< Event type, shared with all events */
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324 SDL_WindowEvent window; /**< Window event data */
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325 SDL_KeyboardEvent key; /**< Keyboard event data */
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326 SDL_TextInputEvent text; /**< Text input event data */
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327 SDL_MouseMotionEvent motion; /**< Mouse motion event data */
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328 SDL_MouseButtonEvent button; /**< Mouse button event data */
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329 SDL_MouseWheelEvent wheel; /**< Mouse wheel event data */
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330 SDL_JoyAxisEvent jaxis; /**< Joystick axis event data */
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331 SDL_JoyBallEvent jball; /**< Joystick ball event data */
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332 SDL_JoyHatEvent jhat; /**< Joystick hat event data */
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333 SDL_JoyButtonEvent jbutton; /**< Joystick button event data */
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334 SDL_QuitEvent quit; /**< Quit request event data */
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335 SDL_UserEvent user; /**< Custom event data */
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336 SDL_SysWMEvent syswm; /**< System dependent window event data */
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337
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338 /* Temporarily here for backwards compatibility */
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339 SDL_ActiveEvent active;
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340 SDL_ResizeEvent resize;
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341 } SDL_Event;
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342
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343
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344 /* Function prototypes */
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345
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346 /* Pumps the event loop, gathering events from the input devices.
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347 This function updates the event queue and internal input device state.
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348 This should only be run in the thread that sets the video mode.
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349 */
337
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350 extern DECLSPEC void SDLCALL SDL_PumpEvents(void);
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351
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352 /* Checks the event queue for messages and optionally returns them.
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353 If 'action' is SDL_ADDEVENT, up to 'numevents' events will be added to
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354 the back of the event queue.
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355 If 'action' is SDL_PEEKEVENT, up to 'numevents' events at the front
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356 of the event queue, matching 'mask', will be returned and will not
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357 be removed from the queue.
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358 If 'action' is SDL_GETEVENT, up to 'numevents' events at the front
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359 of the event queue, matching 'mask', will be returned and will be
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360 removed from the queue.
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361 This function returns the number of events actually stored, or -1
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362 if there was an error. This function is thread-safe.
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363 */
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364 typedef enum
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365 {
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366 SDL_ADDEVENT,
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367 SDL_PEEKEVENT,
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368 SDL_GETEVENT
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369 } SDL_eventaction;
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370 /* */
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371 extern DECLSPEC int SDLCALL SDL_PeepEvents(SDL_Event * events, int numevents,
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372 SDL_eventaction action,
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373 Uint32 mask);
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374
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375 /* Checks to see if certain event types are in the event queue.
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376 */
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377 extern DECLSPEC SDL_bool SDLCALL SDL_HasEvent(Uint32 mask);
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378
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379 /* Polls for currently pending events, and returns 1 if there are any pending
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380 events, or 0 if there are none available. If 'event' is not NULL, the next
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381 event is removed from the queue and stored in that area.
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382 */
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383 extern DECLSPEC int SDLCALL SDL_PollEvent(SDL_Event * event);
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384
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385 /* Waits indefinitely for the next available event, returning 1, or 0 if there
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386 was an error while waiting for events. If 'event' is not NULL, the next
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387 event is removed from the queue and stored in that area.
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388 */
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389 extern DECLSPEC int SDLCALL SDL_WaitEvent(SDL_Event * event);
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390
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391 /* Add an event to the event queue.
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392 This function returns 1 on success, 0 if the event was filtered,
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393 or -1 if the event queue was full or there was some other error.
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394 */
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395 extern DECLSPEC int SDLCALL SDL_PushEvent(SDL_Event * event);
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396
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397 /*
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398 This function sets up a filter to process all events before they
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399 change internal state and are posted to the internal event queue.
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400
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401 The filter is protypted as:
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402 */
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403 typedef int (SDLCALL * SDL_EventFilter) (void *userdata, SDL_Event * event);
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404 /*
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405 If the filter returns 1, then the event will be added to the internal queue.
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406 If it returns 0, then the event will be dropped from the queue, but the
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407 internal state will still be updated. This allows selective filtering of
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408 dynamically arriving events.
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409
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410 WARNING: Be very careful of what you do in the event filter function, as
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411 it may run in a different thread!
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412
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413 There is one caveat when dealing with the SDL_QUITEVENT event type. The
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414 event filter is only called when the window manager desires to close the
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415 application window. If the event filter returns 1, then the window will
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416 be closed, otherwise the window will remain open if possible.
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417 If the quit event is generated by an interrupt signal, it will bypass the
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418 internal queue and be delivered to the application at the next event poll.
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419 */
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420 extern DECLSPEC void SDLCALL SDL_SetEventFilter(SDL_EventFilter filter,
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421 void *userdata);
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422
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423 /*
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424 Return the current event filter - can be used to "chain" filters.
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425 If there is no event filter set, this function returns SDL_FALSE.
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426 */
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427 extern DECLSPEC SDL_bool SDLCALL SDL_GetEventFilter(SDL_EventFilter * filter,
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428 void **userdata);
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429
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430 /*
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431 Run the filter function on the current event queue, removing any
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432 events for which the filter returns 0.
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433 */
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434 extern DECLSPEC void SDLCALL SDL_FilterEvents(SDL_EventFilter filter,
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435 void *userdata);
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436
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437 /*
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438 This function allows you to set the state of processing certain events.
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439 If 'state' is set to SDL_IGNORE, that event will be automatically dropped
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440 from the event queue and will not event be filtered.
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441 If 'state' is set to SDL_ENABLE, that event will be processed normally.
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442 If 'state' is set to SDL_QUERY, SDL_EventState() will return the
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443 current processing state of the specified event.
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444 */
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445 #define SDL_QUERY -1
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446 #define SDL_IGNORE 0
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447 #define SDL_DISABLE 0
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448 #define SDL_ENABLE 1
337
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default)
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449 extern DECLSPEC Uint8 SDLCALL SDL_EventState(Uint8 type, int state);
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450
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451
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452 /* Ends C function definitions when using C++ */
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453 #ifdef __cplusplus
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454 /* *INDENT-OFF* */
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455 }
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456 /* *INDENT-ON* */
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457 #endif
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458 #include "close_code.h"
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459
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460 #endif /* _SDL_events_h */
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461
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462 /* vi: set ts=4 sw=4 expandtab: */