annotate src/video/SDL_sysvideo.h @ 3435:9f62f47d989b

You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() This code still doesn't quite work yet. :)
author Sam Lantinga <slouken@libsdl.org>
date Mon, 16 Nov 2009 07:13:07 +0000
parents 36cf454ba065
children 4b594623401b
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 #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_mouse.h"
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28 #include "SDL_keysym.h"
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29
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30 /* The SDL video driver */
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31
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32 typedef struct SDL_Window SDL_Window;
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33 typedef struct SDL_Texture SDL_Texture;
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34 typedef struct SDL_Renderer SDL_Renderer;
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35 typedef struct SDL_RenderDriver SDL_RenderDriver;
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36 typedef struct SDL_VideoDisplay SDL_VideoDisplay;
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37 typedef struct SDL_VideoDevice SDL_VideoDevice;
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38
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39 /* Define the SDL texture structure */
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40 struct SDL_Texture
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41 {
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42 Uint32 id;
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43
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44 Uint32 format; /**< The pixel format of the texture */
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45 int access; /**< SDL_TextureAccess */
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46 int w; /**< The width of the texture */
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47 int h; /**< The height of the texture */
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48 int modMode; /**< The texture modulation mode */
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49 int blendMode; /**< The texture blend mode */
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50 int scaleMode; /**< The texture scale mode */
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51 Uint8 r, g, b, a; /**< Texture modulation values */
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52
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53 SDL_Renderer *renderer;
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54
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55 void *driverdata; /**< Driver specific texture representation */
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56
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57 SDL_Texture *next;
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58 };
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59
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60 /* Define the SDL renderer structure */
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61 struct SDL_Renderer
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62 {
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63 int (*ActivateRenderer) (SDL_Renderer * renderer);
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64 int (*DisplayModeChanged) (SDL_Renderer * renderer);
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65 int (*CreateTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
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66 int (*QueryTexturePixels) (SDL_Renderer * renderer, SDL_Texture * texture,
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67 void **pixels, int *pitch);
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68 int (*SetTexturePalette) (SDL_Renderer * renderer, SDL_Texture * texture,
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69 const SDL_Color * colors, int firstcolor,
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70 int ncolors);
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71 int (*GetTexturePalette) (SDL_Renderer * renderer, SDL_Texture * texture,
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72 SDL_Color * colors, int firstcolor,
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73 int ncolors);
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74 int (*SetTextureColorMod) (SDL_Renderer * renderer,
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75 SDL_Texture * texture);
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76 int (*SetTextureAlphaMod) (SDL_Renderer * renderer,
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77 SDL_Texture * texture);
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78 int (*SetTextureBlendMode) (SDL_Renderer * renderer,
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79 SDL_Texture * texture);
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80 int (*SetTextureScaleMode) (SDL_Renderer * renderer,
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81 SDL_Texture * texture);
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82 int (*UpdateTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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83 const SDL_Rect * rect, const void *pixels,
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84 int pitch);
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85 int (*LockTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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86 const SDL_Rect * rect, int markDirty, void **pixels,
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87 int *pitch);
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88 void (*UnlockTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
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89 void (*DirtyTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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90 int numrects, const SDL_Rect * rects);
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91 int (*SetDrawColor) (SDL_Renderer * renderer);
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92 int (*SetDrawBlendMode) (SDL_Renderer * renderer);
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93 int (*RenderPoint) (SDL_Renderer * renderer, int x, int y);
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94 int (*RenderLine) (SDL_Renderer * renderer, int x1, int y1, int x2,
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95 int y2);
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96 int (*RenderFill) (SDL_Renderer * renderer, const SDL_Rect * rect);
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97 int (*RenderCopy) (SDL_Renderer * renderer, SDL_Texture * texture,
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98 const SDL_Rect * srcrect, const SDL_Rect * dstrect);
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99 int (*RenderReadPixels) (SDL_Renderer * renderer, const SDL_Rect * rect,
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100 Uint32 format, void * pixels, int pitch);
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101 int (*RenderWritePixels) (SDL_Renderer * renderer, const SDL_Rect * rect,
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102 Uint32 format, const void * pixels, int pitch);
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103 void (*RenderPresent) (SDL_Renderer * renderer);
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104 void (*DestroyTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
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105
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106 void (*DestroyRenderer) (SDL_Renderer * renderer);
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107
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108 /* The current renderer info */
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109 SDL_RendererInfo info;
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110
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111 /* The window associated with the renderer */
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112 SDL_WindowID window;
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113
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114 Uint8 r, g, b, a; /**< Color for drawing operations values */
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115 int blendMode; /**< The drawing blend mode */
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116
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117 void *driverdata;
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118 };
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119
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120 /* Define the SDL render driver structure */
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121 struct SDL_RenderDriver
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122 {
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123 SDL_Renderer *(*CreateRenderer) (SDL_Window * window, Uint32 flags);
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124
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125 /* Info about the renderer capabilities */
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126 SDL_RendererInfo info;
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127 };
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128
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129 /* Define the SDL window structure, corresponding to toplevel windows */
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130 struct SDL_Window
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131 {
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132 Uint32 id;
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133
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134 char *title;
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135 int x, y;
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136 int w, h;
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137 Uint32 flags;
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138
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139 int display;
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140 SDL_Renderer *renderer;
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141
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142 void *userdata;
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143 void *driverdata;
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144 };
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145 #define FULLSCREEN_VISIBLE(W) \
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146 (((W)->flags & SDL_WINDOW_FULLSCREEN) && \
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147 ((W)->flags & SDL_WINDOW_SHOWN) && \
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148 !((W)->flags & SDL_WINDOW_MINIMIZED))
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149
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150 /*
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151 * Define the SDL display structure This corresponds to physical monitors
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152 * attached to the system.
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153 */
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154 struct SDL_VideoDisplay
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155 {
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156 int max_display_modes;
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157 int num_display_modes;
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158 SDL_DisplayMode *display_modes;
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159 SDL_DisplayMode desktop_mode;
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160 SDL_DisplayMode current_mode;
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161 SDL_DisplayMode fullscreen_mode;
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162 SDL_Palette *palette;
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163
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164 Uint16 *gamma;
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165 Uint16 *saved_gamma; /* (just offset into gamma) */
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166
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167 int num_render_drivers;
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168 SDL_RenderDriver *render_drivers;
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169
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170 int num_windows;
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171 SDL_Window *windows;
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172
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173 SDL_Renderer *current_renderer;
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174
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175 /* The hash list of textures */
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176 SDL_Texture *textures[64];
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177
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178 SDL_VideoDevice *device;
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179
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180 void *driverdata;
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181 };
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182
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183 /* Define the SDL video driver structure */
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184 #define _THIS SDL_VideoDevice *_this
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185
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186 struct SDL_VideoDevice
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187 {
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188 /* * * */
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189 /* The name of this video driver */
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190 const char *name;
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191
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192 /* * * */
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193 /* Initialization/Query functions */
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194
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195 /*
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196 * Initialize the native video subsystem, filling in the list of
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197 * displays for this driver, returning 0 or -1 if there's an error.
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198 */
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199 int (*VideoInit) (_THIS);
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200
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201 /*
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202 * Reverse the effects VideoInit() -- called if VideoInit() fails or
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203 * if the application is shutting down the video subsystem.
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204 */
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205 void (*VideoQuit) (_THIS);
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206
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207 /* * * */
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208 /*
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209 * Display functions
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210 */
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211
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212 /*
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213 * Get a list of the available display modes. e.g.
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214 * SDL_AddDisplayMode(_this->current_display, mode)
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215 */
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216 void (*GetDisplayModes) (_THIS);
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217
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218 /*
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219 * Setting the display mode is independent of creating windows, so
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220 * when the display mode is changed, all existing windows should have
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221 * their data updated accordingly, including the display surfaces
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222 * associated with them.
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223 */
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224 int (*SetDisplayMode) (_THIS, SDL_DisplayMode * mode);
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225
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226 /* Set the color entries of the display palette */
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227 int (*SetDisplayPalette) (_THIS, SDL_Palette * palette);
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228
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229 /* Get the color entries of the display palette */
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230 int (*GetDisplayPalette) (_THIS, SDL_Palette * palette);
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231
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232 /* Set the gamma ramp */
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233 int (*SetDisplayGammaRamp) (_THIS, Uint16 * ramp);
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234
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235 /* Get the gamma ramp */
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236 int (*GetDisplayGammaRamp) (_THIS, Uint16 * ramp);
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237
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238 /* * * */
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239 /*
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240 * Window functions
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241 */
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242 int (*CreateWindow) (_THIS, SDL_Window * window);
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243 int (*CreateWindowFrom) (_THIS, SDL_Window * window, const void *data);
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244 void (*SetWindowTitle) (_THIS, SDL_Window * window);
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e4a469d6ddab Implemented SDL_SetWindowIcon(), with translucent icon support under X11.
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245 void (*SetWindowIcon) (_THIS, SDL_Window * window, SDL_Surface * icon);
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246 void (*SetWindowPosition) (_THIS, SDL_Window * window);
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247 void (*SetWindowSize) (_THIS, SDL_Window * window);
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248 void (*ShowWindow) (_THIS, SDL_Window * window);
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249 void (*HideWindow) (_THIS, SDL_Window * window);
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250 void (*RaiseWindow) (_THIS, SDL_Window * window);
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251 void (*MaximizeWindow) (_THIS, SDL_Window * window);
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252 void (*MinimizeWindow) (_THIS, SDL_Window * window);
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253 void (*RestoreWindow) (_THIS, SDL_Window * window);
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254 void (*SetWindowGrab) (_THIS, SDL_Window * window);
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255 void (*DestroyWindow) (_THIS, SDL_Window * window);
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256
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257 /* Get some platform dependent window information */
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258 SDL_bool(*GetWindowWMInfo) (_THIS, SDL_Window * window,
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259 struct SDL_SysWMinfo * info);
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260
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261 /* * * */
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262 /*
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263 * OpenGL support
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264 */
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265 int (*GL_LoadLibrary) (_THIS, const char *path);
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266 void *(*GL_GetProcAddress) (_THIS, const char *proc);
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267 void (*GL_UnloadLibrary) (_THIS);
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268 SDL_GLContext(*GL_CreateContext) (_THIS, SDL_Window * window);
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269 int (*GL_MakeCurrent) (_THIS, SDL_Window * window, SDL_GLContext context);
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270 int (*GL_SetSwapInterval) (_THIS, int interval);
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271 int (*GL_GetSwapInterval) (_THIS);
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272 void (*GL_SwapWindow) (_THIS, SDL_Window * window);
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273 void (*GL_DeleteContext) (_THIS, SDL_GLContext context);
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274
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275 /* * * */
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276 /*
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277 * Event manager functions
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278 */
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279 void (*PumpEvents) (_THIS);
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280
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281 /* Suspend the screensaver */
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282 void (*SuspendScreenSaver) (_THIS);
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283
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284 /* Text input */
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285 void (*StartTextInput) (_THIS);
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286 void (*StopTextInput) (_THIS);
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287 void (*SetTextInputRect) (_THIS, SDL_Rect *rect);
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288
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289 /* * * */
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290 /* Data common to all drivers */
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291 SDL_bool suspend_screensaver;
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292 int num_displays;
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293 SDL_VideoDisplay *displays;
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294 int current_display;
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295 Uint32 next_object_id;
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296
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297 /* * * */
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298 /* Data used by the GL drivers */
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299 struct
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300 {
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301 int red_size;
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302 int green_size;
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diff changeset
303 int blue_size;
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304 int alpha_size;
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305 int depth_size;
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306 int buffer_size;
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307 int stencil_size;
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diff changeset
308 int double_buffer;
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309 int accum_red_size;
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310 int accum_green_size;
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311 int accum_blue_size;
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312 int accum_alpha_size;
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313 int stereo;
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314 int multisamplebuffers;
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315 int multisamplesamples;
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316 int accelerated;
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317 int major_version;
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318 int minor_version;
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319 int retained_backing;
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320 int driver_loaded;
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321 char driver_path[256];
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322 void *dll_handle;
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323 } gl_config;
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324
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325 /* * * */
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326 /* Data private to this driver */
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327 void *driverdata;
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328 struct SDL_GLDriverData *gl_data;
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329
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330 #if SDL_VIDEO_DRIVER_PANDORA
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331 struct SDL_PrivateGLESData *gles_data;
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332 #endif
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333
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334 /* * * */
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335 /* The function used to dispose of this structure */
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336 void (*free) (_THIS);
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337 };
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338
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339 typedef struct VideoBootStrap
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340 {
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341 const char *name;
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342 const char *desc;
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343 int (*available) (void);
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344 SDL_VideoDevice *(*create) (int devindex);
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345 } VideoBootStrap;
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346
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347 #if SDL_VIDEO_DRIVER_COCOA
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348 extern VideoBootStrap COCOA_bootstrap;
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349 #endif
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350 #if SDL_VIDEO_DRIVER_X11
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351 extern VideoBootStrap X11_bootstrap;
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352 #endif
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353 #if SDL_VIDEO_DRIVER_FBCON
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354 extern VideoBootStrap FBCON_bootstrap;
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355 #endif
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356 #if SDL_VIDEO_DRIVER_DIRECTFB
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357 extern VideoBootStrap DirectFB_bootstrap;
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358 #endif
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359 #if SDL_VIDEO_DRIVER_PS2GS
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360 extern VideoBootStrap PS2GS_bootstrap;
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361 #endif
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362 #if SDL_VIDEO_DRIVER_PS3
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363 extern VideoBootStrap PS3_bootstrap;
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364 #endif
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365 #if SDL_VIDEO_DRIVER_SVGALIB
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366 extern VideoBootStrap SVGALIB_bootstrap;
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367 #endif
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368 #if SDL_VIDEO_DRIVER_GAPI
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369 extern VideoBootStrap GAPI_bootstrap;
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370 #endif
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371 #if SDL_VIDEO_DRIVER_WIN32
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372 extern VideoBootStrap WIN32_bootstrap;
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373 #endif
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374 #if SDL_VIDEO_DRIVER_BWINDOW
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375 extern VideoBootStrap BWINDOW_bootstrap;
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376 #endif
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377 #if SDL_VIDEO_DRIVER_PHOTON
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378 extern VideoBootStrap photon_bootstrap;
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379 #endif
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380 #if SDL_VIDEO_DRIVER_QNXGF
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381 extern VideoBootStrap qnxgf_bootstrap;
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382 #endif
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383 #if SDL_VIDEO_DRIVER_EPOC
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384 extern VideoBootStrap EPOC_bootstrap;
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385 #endif
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386 #if SDL_VIDEO_DRIVER_RISCOS
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387 extern VideoBootStrap RISCOS_bootstrap;
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388 #endif
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389 #if SDL_VIDEO_DRIVER_UIKIT
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390 extern VideoBootStrap UIKIT_bootstrap;
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391 #endif
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392 #if SDL_VIDEO_DRIVER_DUMMY
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393 extern VideoBootStrap DUMMY_bootstrap;
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394 #endif
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395 #if SDL_VIDEO_DRIVER_NDS
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396 extern VideoBootStrap NDS_bootstrap;
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397 #endif
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398 #if SDL_VIDEO_DRIVER_PANDORA
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399 extern VideoBootStrap PND_bootstrap;
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400 #endif
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401
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402 #define SDL_CurrentDisplay (_this->displays[_this->current_display])
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403 #define SDL_CurrentRenderer (SDL_CurrentDisplay.current_renderer)
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404
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405 extern SDL_VideoDevice *SDL_GetVideoDevice();
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406 extern int SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode);
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407 extern int SDL_AddVideoDisplay(const SDL_VideoDisplay * display);
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408 extern SDL_bool
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409 SDL_AddDisplayMode(int displayIndex, const SDL_DisplayMode * mode);
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410 extern void
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411 SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver);
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412
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413 extern int SDL_RecreateWindow(SDL_Window * window, Uint32 flags);
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414 extern SDL_Window *SDL_GetWindowFromID(SDL_WindowID windowID);
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415 extern SDL_VideoDisplay *SDL_GetDisplayFromWindow(SDL_Window * window);
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416
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417 extern void SDL_OnWindowShown(SDL_Window * window);
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418 extern void SDL_OnWindowHidden(SDL_Window * window);
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419 extern void SDL_OnWindowResized(SDL_Window * window);
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420 extern void SDL_OnWindowFocusGained(SDL_Window * window);
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421 extern void SDL_OnWindowFocusLost(SDL_Window * window);
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422 extern SDL_WindowID SDL_GetFocusWindow(void);
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423
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424 #endif /* _SDL_sysvideo_h */
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425
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426 /* vi: set ts=4 sw=4 expandtab: */