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annotate src/video/SDL_sysvideo.h @ 5247:78ce7bfd0faf

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Better window parameter checking
author Sam Lantinga <slouken@libsdl.org>
date Thu, 10 Feb 2011 10:37:35 -0800
parents b9cf75615028
children 3a8a452b49f0
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 #ifndef _SDL_sysvideo_h
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25 #define _SDL_sysvideo_h
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26
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27 #include "SDL_shape.h"
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28
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29 /* The SDL video driver */
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30
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31 typedef struct SDL_WindowShaper SDL_WindowShaper;
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32 typedef struct SDL_ShapeDriver SDL_ShapeDriver;
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33 typedef struct SDL_VideoDisplay SDL_VideoDisplay;
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34 typedef struct SDL_VideoDevice SDL_VideoDevice;
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35
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36 /* Define the SDL window-shaper structure */
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37 struct SDL_WindowShaper
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38 {
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39 /* The window associated with the shaper */
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40 SDL_Window *window;
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41
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42 /* The user's specified coordinates for the window, for once we give it a shape. */
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43 Uint32 userx,usery;
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44
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45 /* The parameters for shape calculation. */
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46 SDL_WindowShapeMode mode;
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47
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48 /* Has this window been assigned a shape? */
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49 SDL_bool hasshape;
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50
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51 void *driverdata;
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52 };
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53
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54 /* Define the SDL shape driver structure */
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55 struct SDL_ShapeDriver
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56 {
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57 SDL_WindowShaper *(*CreateShaper)(SDL_Window * window);
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58 int (*SetWindowShape)(SDL_WindowShaper *shaper,SDL_Surface *shape,SDL_WindowShapeMode *shape_mode);
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59 int (*ResizeWindowShape)(SDL_Window *window);
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60 };
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61
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62 typedef struct SDL_WindowUserData
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63 {
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64 char *name;
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65 void *data;
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66 struct SDL_WindowUserData *next;
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67 } SDL_WindowUserData;
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68
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69 /* Define the SDL window structure, corresponding to toplevel windows */
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70 struct SDL_Window
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71 {
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72 const void *magic;
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73 Uint32 id;
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74 char *title;
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75 int x, y;
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76 int w, h;
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77 Uint32 flags;
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78
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79 SDL_VideoDisplay *display;
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80
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81 SDL_DisplayMode fullscreen_mode;
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82
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83 SDL_Surface *surface;
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84 SDL_bool surface_valid;
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85
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86 SDL_WindowShaper *shaper;
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87
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88 SDL_WindowUserData *data;
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89
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90 void *driverdata;
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92 SDL_Window *prev;
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93 SDL_Window *next;
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94 };
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95 #define FULLSCREEN_VISIBLE(W) \
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96 (((W)->flags & SDL_WINDOW_FULLSCREEN) && \
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97 ((W)->flags & SDL_WINDOW_SHOWN) && \
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98 !((W)->flags & SDL_WINDOW_MINIMIZED))
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99
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100 /*
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101 * Define the SDL display structure This corresponds to physical monitors
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102 * attached to the system.
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103 */
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104 struct SDL_VideoDisplay
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105 {
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106 int max_display_modes;
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107 int num_display_modes;
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108 SDL_DisplayMode *display_modes;
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109 SDL_DisplayMode desktop_mode;
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110 SDL_DisplayMode current_mode;
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111 SDL_bool updating_fullscreen;
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112
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113 Uint16 *gamma;
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114 Uint16 *saved_gamma; /* (just offset into gamma) */
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115
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116 SDL_Window *windows;
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117 SDL_Window *fullscreen_window;
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118
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119 SDL_VideoDevice *device;
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120
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121 void *driverdata;
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122 };
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123
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124 /* Define the SDL video driver structure */
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125 #define _THIS SDL_VideoDevice *_this
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126
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127 struct SDL_VideoDevice
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128 {
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129 /* * * */
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130 /* The name of this video driver */
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131 const char *name;
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132
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133 /* * * */
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134 /* Initialization/Query functions */
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135
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136 /*
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137 * Initialize the native video subsystem, filling in the list of
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138 * displays for this driver, returning 0 or -1 if there's an error.
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139 */
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140 int (*VideoInit) (_THIS);
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141
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142 /*
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143 * Reverse the effects VideoInit() -- called if VideoInit() fails or
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144 * if the application is shutting down the video subsystem.
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145 */
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146 void (*VideoQuit) (_THIS);
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147
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148 /* * * */
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149 /*
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150 * Display functions
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151 */
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152
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153 /*
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154 * Get the bounds of a display
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155 */
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156 int (*GetDisplayBounds) (_THIS, SDL_VideoDisplay * display, SDL_Rect * rect);
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157
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158 /*
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159 * Get a list of the available display modes. e.g.
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160 * SDL_AddDisplayMode(_this->current_display, mode)
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161 */
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162 void (*GetDisplayModes) (_THIS, SDL_VideoDisplay * display);
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163
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164 /*
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165 * Setting the display mode is independent of creating windows, so
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166 * when the display mode is changed, all existing windows should have
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167 * their data updated accordingly, including the display surfaces
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168 * associated with them.
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169 */
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170 int (*SetDisplayMode) (_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode);
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171
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172 /* Set the gamma ramp */
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173 int (*SetDisplayGammaRamp) (_THIS, SDL_VideoDisplay * display, Uint16 * ramp);
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174
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175 /* Get the gamma ramp */
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176 int (*GetDisplayGammaRamp) (_THIS, SDL_VideoDisplay * display, Uint16 * ramp);
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177
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178 /* * * */
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179 /*
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180 * Window functions
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181 */
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182 int (*CreateWindow) (_THIS, SDL_Window * window);
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183 int (*CreateWindowFrom) (_THIS, SDL_Window * window, const void *data);
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184 void (*SetWindowTitle) (_THIS, SDL_Window * window);
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185 void (*SetWindowIcon) (_THIS, SDL_Window * window, SDL_Surface * icon);
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186 void (*SetWindowPosition) (_THIS, SDL_Window * window);
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187 void (*SetWindowSize) (_THIS, SDL_Window * window);
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188 void (*ShowWindow) (_THIS, SDL_Window * window);
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189 void (*HideWindow) (_THIS, SDL_Window * window);
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190 void (*RaiseWindow) (_THIS, SDL_Window * window);
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191 void (*MaximizeWindow) (_THIS, SDL_Window * window);
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192 void (*MinimizeWindow) (_THIS, SDL_Window * window);
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193 void (*RestoreWindow) (_THIS, SDL_Window * window);
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194 void (*SetWindowGrab) (_THIS, SDL_Window * window);
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195 void (*DestroyWindow) (_THIS, SDL_Window * window);
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196 int (*CreateWindowFramebuffer) (_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch);
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197 int (*UpdateWindowFramebuffer) (_THIS, SDL_Window * window, int numrects, SDL_Rect * rects);
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198 void (*DestroyWindowFramebuffer) (_THIS, SDL_Window * window);
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199
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200 /* * * */
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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201 /*
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Eli Gottlieb <eligottlieb@gmail.com>
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202 * Shaped-window functions
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
Eli Gottlieb <eligottlieb@gmail.com>
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203 */
b6930aefd008 Finished X11 shaped-window functionality and removed ellipse+polygon rendering.
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204 SDL_ShapeDriver shape_driver;
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205
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206 /* Get some platform dependent window information */
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diff changeset
207 SDL_bool(*GetWindowWMInfo) (_THIS, SDL_Window * window,
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208 struct SDL_SysWMinfo * info);
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209
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210 /* * * */
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211 /*
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212 * OpenGL support
Sam Lantinga <slouken@libsdl.org>
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213 */
Sam Lantinga <slouken@libsdl.org>
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214 int (*GL_LoadLibrary) (_THIS, const char *path);
Sam Lantinga <slouken@libsdl.org>
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215 void *(*GL_GetProcAddress) (_THIS, const char *proc);
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216 void (*GL_UnloadLibrary) (_THIS);
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217 SDL_GLContext(*GL_CreateContext) (_THIS, SDL_Window * window);
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218 int (*GL_MakeCurrent) (_THIS, SDL_Window * window, SDL_GLContext context);
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diff changeset
219 int (*GL_SetSwapInterval) (_THIS, int interval);
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220 int (*GL_GetSwapInterval) (_THIS);
Sam Lantinga <slouken@libsdl.org>
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221 void (*GL_SwapWindow) (_THIS, SDL_Window * window);
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222 void (*GL_DeleteContext) (_THIS, SDL_GLContext context);
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223
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224 /* * * */
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225 /*
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226 * Event manager functions
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227 */
Sam Lantinga <slouken@libsdl.org>
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228 void (*PumpEvents) (_THIS);
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229
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230 /* Suspend the screensaver */
54fac87e1f34 Added an API to enable/disable the screen saver.
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231 void (*SuspendScreenSaver) (_THIS);
54fac87e1f34 Added an API to enable/disable the screen saver.
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232
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233 /* Text input */
00cace2d9080 Merged a cleaned up version of Jiang's code changes from Google Summer of Code 2009
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234 void (*StartTextInput) (_THIS);
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235 void (*StopTextInput) (_THIS);
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236 void (*SetTextInputRect) (_THIS, SDL_Rect *rect);
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237
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238 /* Clipboard */
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239 int (*SetClipboardText) (_THIS, const char *text);
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240 char * (*GetClipboardText) (_THIS);
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241 SDL_bool (*HasClipboardText) (_THIS);
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242
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243 /* * * */
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244 /* Data common to all drivers */
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245 SDL_bool suspend_screensaver;
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246 int num_displays;
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247 SDL_VideoDisplay *displays;
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248 int current_display;
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249 Uint8 window_magic;
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250 Uint32 next_object_id;
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251 char * clipboard_text;
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252
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253 /* * * */
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254 /* Data used by the GL drivers */
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255 struct
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256 {
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257 int red_size;
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258 int green_size;
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259 int blue_size;
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260 int alpha_size;
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261 int depth_size;
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262 int buffer_size;
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263 int stencil_size;
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264 int double_buffer;
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265 int accum_red_size;
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266 int accum_green_size;
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267 int accum_blue_size;
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268 int accum_alpha_size;
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269 int stereo;
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270 int multisamplebuffers;
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271 int multisamplesamples;
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272 int accelerated;
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273 int major_version;
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274 int minor_version;
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275 int retained_backing;
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276 int driver_loaded;
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277 char driver_path[256];
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278 void *dll_handle;
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279 } gl_config;
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280
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281 /* * * */
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282 /* Data private to this driver */
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283 void *driverdata;
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284 struct SDL_GLDriverData *gl_data;
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285
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286 #if SDL_VIDEO_DRIVER_PANDORA
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287 struct SDL_PrivateGLESData *gles_data;
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288 #endif
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289
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290 /* * * */
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291 /* The function used to dispose of this structure */
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292 void (*free) (_THIS);
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293 };
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294
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295 typedef struct VideoBootStrap
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296 {
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297 const char *name;
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298 const char *desc;
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299 int (*available) (void);
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300 SDL_VideoDevice *(*create) (int devindex);
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301 } VideoBootStrap;
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302
1931
103c6fec2a60 The Mac OS X Cocoa video driver is under construction...
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303 #if SDL_VIDEO_DRIVER_COCOA
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304 extern VideoBootStrap COCOA_bootstrap;
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305 #endif
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306 #if SDL_VIDEO_DRIVER_X11
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307 extern VideoBootStrap X11_bootstrap;
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308 #endif
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309 #if SDL_VIDEO_DRIVER_DIRECTFB
167
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310 extern VideoBootStrap DirectFB_bootstrap;
cb384ef627f6 Added support for DirectFB video on Linux (thanks Denis!)
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311 #endif
5062
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312 #if SDL_VIDEO_DRIVER_WINDOWS
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313 extern VideoBootStrap WINDOWS_bootstrap;
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314 #endif
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315 #if SDL_VIDEO_DRIVER_BWINDOW
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316 extern VideoBootStrap BWINDOW_bootstrap;
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317 #endif
5153
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318 #if SDL_VIDEO_DRIVER_PANDORA
1435f8a6425c Nobody is currently maintaining the QNX code, so removing it for now.
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319 extern VideoBootStrap PND_bootstrap;
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0bc41e0361d3 Date: Mon, 2 Mar 2009 16:27:42 +0200
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320 #endif
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1435f8a6425c Nobody is currently maintaining the QNX code, so removing it for now.
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321 #if SDL_VIDEO_DRIVER_NDS
1435f8a6425c Nobody is currently maintaining the QNX code, so removing it for now.
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322 extern VideoBootStrap NDS_bootstrap;
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323 #endif
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Holmes Futrell <hfutrell@umail.ucsb.edu>
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324 #if SDL_VIDEO_DRIVER_UIKIT
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325 extern VideoBootStrap UIKIT_bootstrap;
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Holmes Futrell <hfutrell@umail.ucsb.edu>
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326 #endif
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Sam Lantinga <slouken@libsdl.org>
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327 #if SDL_VIDEO_DRIVER_ANDROID
1435f8a6425c Nobody is currently maintaining the QNX code, so removing it for now.
Sam Lantinga <slouken@libsdl.org>
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328 extern VideoBootStrap Android_bootstrap;
1435f8a6425c Nobody is currently maintaining the QNX code, so removing it for now.
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329 #endif
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19418e4422cb New configure-based build system. Still work in progress, but much improved
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330 #if SDL_VIDEO_DRIVER_DUMMY
19418e4422cb New configure-based build system. Still work in progress, but much improved
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331 extern VideoBootStrap DUMMY_bootstrap;
19418e4422cb New configure-based build system. Still work in progress, but much improved
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332 #endif
19418e4422cb New configure-based build system. Still work in progress, but much improved
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333
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334 #define SDL_CurrentDisplay (&_this->displays[_this->current_display])
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335
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336 extern SDL_VideoDevice *SDL_GetVideoDevice(void);
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337 extern int SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode);
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338 extern int SDL_AddVideoDisplay(const SDL_VideoDisplay * display);
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4b594623401b Work in progress on multi-display support:
Sam Lantinga <slouken@libsdl.org>
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339 extern SDL_bool SDL_AddDisplayMode(SDL_VideoDisplay *display, const SDL_DisplayMode * mode);
4b594623401b Work in progress on multi-display support:
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340 extern int SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display);
4b594623401b Work in progress on multi-display support:
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341 extern int SDL_GetDisplayModeForDisplay(SDL_VideoDisplay * display, int index, SDL_DisplayMode * mode);
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342 extern int SDL_GetDesktopDisplayModeForDisplay(SDL_VideoDisplay * display, SDL_DisplayMode * mode);
4b594623401b Work in progress on multi-display support:
Sam Lantinga <slouken@libsdl.org>
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343 extern int SDL_GetCurrentDisplayModeForDisplay(SDL_VideoDisplay * display, SDL_DisplayMode * mode);
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344 extern SDL_DisplayMode * SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode, SDL_DisplayMode * closest);
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Sam Lantinga <slouken@libsdl.org>
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345 extern int SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode);
4b594623401b Work in progress on multi-display support:
Sam Lantinga <slouken@libsdl.org>
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346 extern int SDL_SetGammaRampForDisplay(SDL_VideoDisplay * display, const Uint16 * red, const Uint16 * green, const Uint16 * blue);
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347 extern int SDL_GetGammaRampForDisplay(SDL_VideoDisplay * display, Uint16 * red, Uint16 * green, Uint16 * blue);
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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348
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349 extern int SDL_RecreateWindow(SDL_Window * window, Uint32 flags);
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350
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351 extern void SDL_OnWindowShown(SDL_Window * window);
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352 extern void SDL_OnWindowHidden(SDL_Window * window);
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353 extern void SDL_OnWindowResized(SDL_Window * window);
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98a819296cdc Whenever a window becomes fullscreen, shown, unminimized, and has input focus it will change the display to the corresponding fullscreen video mode.
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354 extern void SDL_OnWindowMinimized(SDL_Window * window);
98a819296cdc Whenever a window becomes fullscreen, shown, unminimized, and has input focus it will change the display to the corresponding fullscreen video mode.
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355 extern void SDL_OnWindowRestored(SDL_Window * window);
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356 extern void SDL_OnWindowFocusGained(SDL_Window * window);
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357 extern void SDL_OnWindowFocusLost(SDL_Window * window);
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Sam Lantinga <slouken@libsdl.org>
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358 extern SDL_Window * SDL_GetFocusWindow(void);
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74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
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359
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360 #endif /* _SDL_sysvideo_h */
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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361
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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362 /* vi: set ts=4 sw=4 expandtab: */