annotate src/video/SDL_sysvideo.h @ 3976:8582c6a5ca16 SDL-1.2

Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
author Sam Lantinga <slouken@libsdl.org>
date Mon, 25 Jun 2007 00:50:20 +0000
parents 67d518069d9a
children a1b03ba2fcd0
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 #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 #define SDL_PROTOTYPES_ONLY
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29 #include "SDL_syswm.h"
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30 #undef SDL_PROTOTYPES_ONLY
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31
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32 /* This file prototypes the video driver implementation.
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33 This is designed to be easily converted to C++ in the future.
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34 */
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35
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36 #if SDL_VIDEO_OPENGL
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37 #include "SDL_opengl.h"
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38 #endif /* SDL_VIDEO_OPENGL */
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39
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40 /* The SDL video driver */
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41 typedef struct SDL_VideoDevice SDL_VideoDevice;
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42
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43 /* Define the SDL video driver structure */
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44 #define _THIS SDL_VideoDevice *_this
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45 #ifndef _STATUS
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46 #define _STATUS SDL_status *status
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47 #endif
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48 struct SDL_VideoDevice {
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49 /* * * */
47
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50 /* The name of this video driver */
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51 const char *name;
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52
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53 /* * * */
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54 /* Initialization/Query functions */
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55
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56 /* Initialize the native video subsystem, filling 'vformat' with the
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57 "best" display pixel format, returning 0 or -1 if there's an error.
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58 */
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59 int (*VideoInit)(_THIS, SDL_PixelFormat *vformat);
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60
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61 /* List the available video modes for the given pixel format, sorted
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62 from largest to smallest.
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63 */
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64 SDL_Rect **(*ListModes)(_THIS, SDL_PixelFormat *format, Uint32 flags);
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65
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66 /* Set the requested video mode, returning a surface which will be
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67 set to the SDL_VideoSurface. The width and height will already
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68 be verified by ListModes(), and the video subsystem is free to
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69 set the mode to a supported bit depth different from the one
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70 specified -- the desired bpp will be emulated with a shadow
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71 surface if necessary. If a new mode is returned, this function
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72 should take care of cleaning up the current mode.
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73 */
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74 SDL_Surface *(*SetVideoMode)(_THIS, SDL_Surface *current,
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75 int width, int height, int bpp, Uint32 flags);
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76
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77 /* Toggle the fullscreen mode */
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78 int (*ToggleFullScreen)(_THIS, int on);
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79
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80 /* This is called after the video mode has been set, to get the
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81 initial mouse state. It should queue events as necessary to
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82 properly represent the current mouse focus and position.
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83 */
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84 void (*UpdateMouse)(_THIS);
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85
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86 /* Create a YUV video surface (possibly overlay) of the given
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87 format. The hardware should be able to perform at least 2x
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88 scaling on display.
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89 */
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90 SDL_Overlay *(*CreateYUVOverlay)(_THIS, int width, int height,
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91 Uint32 format, SDL_Surface *display);
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92
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93 /* Sets the color entries { firstcolor .. (firstcolor+ncolors-1) }
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94 of the physical palette to those in 'colors'. If the device is
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95 using a software palette (SDL_HWPALETTE not set), then the
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96 changes are reflected in the logical palette of the screen
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97 as well.
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98 The return value is 1 if all entries could be set properly
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99 or 0 otherwise.
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100 */
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101 int (*SetColors)(_THIS, int firstcolor, int ncolors,
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102 SDL_Color *colors);
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103
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104 /* This pointer should exist in the native video subsystem and should
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105 point to an appropriate update function for the current video mode
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106 */
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107 void (*UpdateRects)(_THIS, int numrects, SDL_Rect *rects);
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108
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109 /* Reverse the effects VideoInit() -- called if VideoInit() fails
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110 or if the application is shutting down the video subsystem.
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111 */
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112 void (*VideoQuit)(_THIS);
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113
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114 /* * * */
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115 /* Hardware acceleration functions */
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116
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117 /* Information about the video hardware */
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118 SDL_VideoInfo info;
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119
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120 /* The pixel format used when SDL_CreateRGBSurface creates SDL_HWSURFACEs with alpha */
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121 SDL_PixelFormat* displayformatalphapixel;
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122
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123 /* Allocates a surface in video memory */
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124 int (*AllocHWSurface)(_THIS, SDL_Surface *surface);
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125
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126 /* Sets the hardware accelerated blit function, if any, based
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127 on the current flags of the surface (colorkey, alpha, etc.)
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128 */
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129 int (*CheckHWBlit)(_THIS, SDL_Surface *src, SDL_Surface *dst);
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130
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131 /* Fills a surface rectangle with the given color */
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132 int (*FillHWRect)(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color);
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133
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134 /* Sets video mem colorkey and accelerated blit function */
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135 int (*SetHWColorKey)(_THIS, SDL_Surface *surface, Uint32 key);
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136
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137 /* Sets per surface hardware alpha value */
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138 int (*SetHWAlpha)(_THIS, SDL_Surface *surface, Uint8 value);
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139
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140 /* Returns a readable/writable surface */
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141 int (*LockHWSurface)(_THIS, SDL_Surface *surface);
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142 void (*UnlockHWSurface)(_THIS, SDL_Surface *surface);
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143
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144 /* Performs hardware flipping */
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145 int (*FlipHWSurface)(_THIS, SDL_Surface *surface);
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146
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147 /* Frees a previously allocated video surface */
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148 void (*FreeHWSurface)(_THIS, SDL_Surface *surface);
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149
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150 /* * * */
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151 /* Gamma support */
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152
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153 Uint16 *gamma;
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154
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155 /* Set the gamma correction directly (emulated with gamma ramps) */
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156 int (*SetGamma)(_THIS, float red, float green, float blue);
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157
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158 /* Get the gamma correction directly (emulated with gamma ramps) */
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159 int (*GetGamma)(_THIS, float *red, float *green, float *blue);
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160
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161 /* Set the gamma ramp */
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162 int (*SetGammaRamp)(_THIS, Uint16 *ramp);
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163
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164 /* Get the gamma ramp */
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165 int (*GetGammaRamp)(_THIS, Uint16 *ramp);
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166
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167 /* * * */
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168 /* OpenGL support */
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169
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170 /* Sets the dll to use for OpenGL and loads it */
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171 int (*GL_LoadLibrary)(_THIS, const char *path);
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172
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173 /* Retrieves the address of a function in the gl library */
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174 void* (*GL_GetProcAddress)(_THIS, const char *proc);
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175
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176 /* Get attribute information from the windowing system. */
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177 int (*GL_GetAttribute)(_THIS, SDL_GLattr attrib, int* value);
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178
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179 /* Make the context associated with this driver current */
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180 int (*GL_MakeCurrent)(_THIS);
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181
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182 /* Swap the current buffers in double buffer mode. */
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183 void (*GL_SwapBuffers)(_THIS);
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184
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185 /* OpenGL functions for SDL_OPENGLBLIT */
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186 #if SDL_VIDEO_OPENGL
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187 #if !defined(__WIN32__)
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188 #define WINAPI
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189 #endif
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190 #define SDL_PROC(ret,func,params) ret (WINAPI *func) params;
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191 #include "SDL_glfuncs.h"
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192 #undef SDL_PROC
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193
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194 /* Texture id */
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195 GLuint texture;
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196 #endif
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197 int is_32bit;
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198
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199 /* * * */
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200 /* Window manager functions */
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201
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202 /* Set the title and icon text */
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203 void (*SetCaption)(_THIS, const char *title, const char *icon);
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204
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205 /* Set the window icon image */
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206 void (*SetIcon)(_THIS, SDL_Surface *icon, Uint8 *mask);
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207
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208 /* Iconify the window.
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209 This function returns 1 if there is a window manager and the
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210 window was actually iconified, it returns 0 otherwise.
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211 */
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212 int (*IconifyWindow)(_THIS);
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213
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214 /* Grab or ungrab keyboard and mouse input */
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215 SDL_GrabMode (*GrabInput)(_THIS, SDL_GrabMode mode);
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216
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217 /* Get some platform dependent window information */
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218 int (*GetWMInfo)(_THIS, SDL_SysWMinfo *info);
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219
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220 /* * * */
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221 /* Cursor manager functions */
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222
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223 /* Free a window manager cursor
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224 This function can be NULL if CreateWMCursor is also NULL.
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225 */
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226 void (*FreeWMCursor)(_THIS, WMcursor *cursor);
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227
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228 /* If not NULL, create a black/white window manager cursor */
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229 WMcursor *(*CreateWMCursor)(_THIS,
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230 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y);
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231
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232 /* Show the specified cursor, or hide if cursor is NULL */
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233 int (*ShowWMCursor)(_THIS, WMcursor *cursor);
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234
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235 /* Warp the window manager cursor to (x,y)
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236 If NULL, a mouse motion event is posted internally.
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237 */
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238 void (*WarpWMCursor)(_THIS, Uint16 x, Uint16 y);
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239
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240 /* If not NULL, this is called when a mouse motion event occurs */
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241 void (*MoveWMCursor)(_THIS, int x, int y);
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242
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243 /* Determine whether the mouse should be in relative mode or not.
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244 This function is called when the input grab state or cursor
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245 visibility state changes.
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246 If the cursor is not visible, and the input is grabbed, the
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247 driver can place the mouse in relative mode, which may result
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248 in higher accuracy sampling of the pointer motion.
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249 */
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250 void (*CheckMouseMode)(_THIS);
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251
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252 /* * * */
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253 /* Event manager functions */
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254
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255 /* Initialize keyboard mapping for this driver */
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256 void (*InitOSKeymap)(_THIS);
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257
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258 /* Handle any queued OS events */
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259 void (*PumpEvents)(_THIS);
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260
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261 /* * * */
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262 /* Data common to all drivers */
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263 SDL_Surface *screen;
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264 SDL_Surface *shadow;
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265 SDL_Surface *visible;
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266 SDL_Palette *physpal; /* physical palette, if != logical palette */
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267 SDL_Color *gammacols; /* gamma-corrected colours, or NULL */
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268 char *wm_title;
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269 char *wm_icon;
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270 int offset_x;
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271 int offset_y;
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272 SDL_GrabMode input_grab;
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273
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274 /* Driver information flags */
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275 int handles_any_size; /* Driver handles any size video mode */
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276
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277 /* * * */
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278 /* Data used by the GL drivers */
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279 struct {
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280 int red_size;
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281 int green_size;
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282 int blue_size;
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283 int alpha_size;
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284 int depth_size;
450
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285 int buffer_size;
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286 int stencil_size;
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287 int double_buffer;
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288 int accum_red_size;
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289 int accum_green_size;
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290 int accum_blue_size;
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291 int accum_alpha_size;
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292 int stereo;
656
864e2d2a9a55 Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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293 int multisamplebuffers;
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294 int multisamplesamples;
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295 int accelerated;
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296 int swap_control;
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297 int driver_loaded;
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298 char driver_path[256];
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299 void* dll_handle;
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300 } gl_config;
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301
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302 /* * * */
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303 /* Data private to this driver */
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304 struct SDL_PrivateVideoData *hidden;
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305 struct SDL_PrivateGLData *gl_data;
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306
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307 /* * * */
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308 /* The function used to dispose of this structure */
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309 void (*free)(_THIS);
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310 };
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311 #undef _THIS
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312
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313 typedef struct VideoBootStrap {
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314 const char *name;
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315 const char *desc;
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316 int (*available)(void);
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317 SDL_VideoDevice *(*create)(int devindex);
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318 } VideoBootStrap;
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319
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320 #if SDL_VIDEO_DRIVER_QUARTZ
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321 extern VideoBootStrap QZ_bootstrap;
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322 #endif
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323 #if SDL_VIDEO_DRIVER_X11
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324 extern VideoBootStrap X11_bootstrap;
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325 #endif
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326 #if SDL_VIDEO_DRIVER_DGA
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327 extern VideoBootStrap DGA_bootstrap;
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328 #endif
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329 #if SDL_VIDEO_DRIVER_NANOX
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330 extern VideoBootStrap NX_bootstrap;
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331 #endif
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332 #if SDL_VIDEO_DRIVER_IPOD
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333 extern VideoBootStrap iPod_bootstrap;
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334 #endif
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335 #if SDL_VIDEO_DRIVER_QTOPIA
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336 extern VideoBootStrap Qtopia_bootstrap;
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337 #endif
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338 #if SDL_VIDEO_DRIVER_WSCONS
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339 extern VideoBootStrap WSCONS_bootstrap;
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340 #endif
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341 #if SDL_VIDEO_DRIVER_FBCON
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342 extern VideoBootStrap FBCON_bootstrap;
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343 #endif
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344 #if SDL_VIDEO_DRIVER_DIRECTFB
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345 extern VideoBootStrap DirectFB_bootstrap;
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346 #endif
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347 #if SDL_VIDEO_DRIVER_PS2GS
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348 extern VideoBootStrap PS2GS_bootstrap;
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349 #endif
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350 #if SDL_VIDEO_DRIVER_GGI
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351 extern VideoBootStrap GGI_bootstrap;
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352 #endif
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353 #if SDL_VIDEO_DRIVER_VGL
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354 extern VideoBootStrap VGL_bootstrap;
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355 #endif
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356 #if SDL_VIDEO_DRIVER_SVGALIB
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357 extern VideoBootStrap SVGALIB_bootstrap;
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358 #endif
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359 #if SDL_VIDEO_DRIVER_GAPI
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360 extern VideoBootStrap GAPI_bootstrap;
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361 #endif
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362 #if SDL_VIDEO_DRIVER_WINDIB
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363 extern VideoBootStrap WINDIB_bootstrap;
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364 #endif
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365 #if SDL_VIDEO_DRIVER_DDRAW
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366 extern VideoBootStrap DIRECTX_bootstrap;
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367 #endif
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368 #if SDL_VIDEO_DRIVER_BWINDOW
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369 extern VideoBootStrap BWINDOW_bootstrap;
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370 #endif
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371 #if SDL_VIDEO_DRIVER_TOOLBOX
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372 extern VideoBootStrap TOOLBOX_bootstrap;
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373 #endif
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374 #if SDL_VIDEO_DRIVER_DRAWSPROCKET
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375 extern VideoBootStrap DSp_bootstrap;
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376 #endif
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377 #if SDL_VIDEO_DRIVER_PHOTON
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378 extern VideoBootStrap ph_bootstrap;
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379 #endif
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380 #if SDL_VIDEO_DRIVER_EPOC
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381 extern VideoBootStrap EPOC_bootstrap;
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382 #endif
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383 #if SDL_VIDEO_DRIVER_XBIOS
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384 extern VideoBootStrap XBIOS_bootstrap;
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385 #endif
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386 #if SDL_VIDEO_DRIVER_GEM
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387 extern VideoBootStrap GEM_bootstrap;
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388 #endif
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389 #if SDL_VIDEO_DRIVER_PICOGUI
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390 extern VideoBootStrap PG_bootstrap;
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391 #endif
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392 #if SDL_VIDEO_DRIVER_DC
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393 extern VideoBootStrap DC_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_RISCOS
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399 extern VideoBootStrap RISCOS_bootstrap;
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400 #endif
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401 #if SDL_VIDEO_DRIVER_OS2FS
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402 extern VideoBootStrap OS2FSLib_bootstrap;
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403 #endif
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404 #if SDL_VIDEO_DRIVER_AALIB
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405 extern VideoBootStrap AALIB_bootstrap;
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406 #endif
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407 #if SDL_VIDEO_DRIVER_DUMMY
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408 extern VideoBootStrap DUMMY_bootstrap;
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409 #endif
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410
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411 /* This is the current video device */
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412 extern SDL_VideoDevice *current_video;
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413
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414 #define SDL_VideoSurface (current_video->screen)
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415 #define SDL_ShadowSurface (current_video->shadow)
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416 #define SDL_PublicSurface (current_video->visible)
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417
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418 #endif /* _SDL_sysvideo_h */