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annotate src/video/win32/SDL_win32video.c @ 2915:deb377097225

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Fixed CPU feature detection on x86_64 platform (registers were being corrupted, causing crashes)
author Sam Lantinga <slouken@libsdl.org>
date Wed, 24 Dec 2008 13:13:38 +0000
parents 99210400e8b9
children 94b634c56455
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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99210400e8b9 Updated copyright date
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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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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 #include "SDL_main.h"
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25 #include "SDL_video.h"
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26 #include "SDL_mouse.h"
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27 #include "../SDL_sysvideo.h"
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28 #include "../SDL_pixels_c.h"
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29
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30 #include "SDL_win32video.h"
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31 #include "SDL_d3drender.h"
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32 #include "SDL_gdirender.h"
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33
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34 /* Initialization/Query functions */
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35 static int WIN_VideoInit(_THIS);
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36 static void WIN_VideoQuit(_THIS);
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37
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38 int total_mice = 0; /* total mouse count */
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39 HANDLE *mice = NULL; /* the handles to the detected mice */
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40 HCTX *g_hCtx = NULL; /* handles to tablet contexts */
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41 int tablet = -1; /* we're assuming that there is no tablet */
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42
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43 /* WIN32 driver bootstrap functions */
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44
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45 static int
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46 WIN_Available(void)
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47 {
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48 return (1);
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49 }
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50
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51 static void
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52 WIN_DeleteDevice(SDL_VideoDevice * device)
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53 {
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54 SDL_VideoData *data = (SDL_VideoData *) device->driverdata;
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55
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56 SDL_UnregisterApp();
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57 #if SDL_VIDEO_RENDER_D3D
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58 if (data->d3d) {
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59 IDirect3D9_Release(data->d3d);
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60 FreeLibrary(data->d3dDLL);
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61 }
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62 #endif
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63 if (data->wintabDLL) {
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64 FreeLibrary(data->wintabDLL);
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65 }
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66 SDL_free(device->driverdata);
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67 SDL_free(device);
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68 }
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69
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70 static SDL_VideoDevice *
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71 WIN_CreateDevice(int devindex)
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72 {
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73 SDL_VideoDevice *device;
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74 SDL_VideoData *data;
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75
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76 SDL_RegisterApp(NULL, 0, NULL);
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77
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78 /* Initialize all variables that we clean on shutdown */
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79 device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
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80 if (device) {
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81 data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
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82 }
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83 if (!device || !data) {
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84 SDL_OutOfMemory();
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85 if (device) {
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86 SDL_free(device);
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87 }
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88 return NULL;
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89 }
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90 device->driverdata = data;
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91
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92 #if SDL_VIDEO_RENDER_D3D
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93 data->d3dDLL = LoadLibrary(TEXT("D3D9.DLL"));
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94 if (data->d3dDLL) {
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95 IDirect3D9 *(WINAPI * D3DCreate) (UINT SDKVersion);
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96
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97 D3DCreate =
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98 (IDirect3D9 * (WINAPI *) (UINT)) GetProcAddress(data->d3dDLL,
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99 "Direct3DCreate9");
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100 if (D3DCreate) {
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101 data->d3d = D3DCreate(D3D_SDK_VERSION);
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102 }
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103 if (!data->d3d) {
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104 FreeLibrary(data->d3dDLL);
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105 data->d3dDLL = NULL;
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106 }
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107 }
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108 #endif /* SDL_VIDEO_RENDER_D3D */
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109
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110 data->wintabDLL = LoadLibrary(TEXT("WINTAB32.DLL"));
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111 if (data->wintabDLL) {
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112 #define PROCNAME(X) #X
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113 data->WTInfoA =
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114 (UINT(*)(UINT, UINT, LPVOID)) GetProcAddress(data->wintabDLL,
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115 PROCNAME(WTInfoA));
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116 data->WTOpenA =
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117 (HCTX(*)(HWND, LPLOGCONTEXTA, BOOL)) GetProcAddress(data->
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118 wintabDLL,
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119 PROCNAME
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120 (WTOpenA));
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121 data->WTPacket =
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122 (int (*)(HCTX, UINT, LPVOID)) GetProcAddress(data->wintabDLL,
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123 PROCNAME(WTPacket));
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124 data->WTClose =
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125 (BOOL(*)(HCTX)) GetProcAddress(data->wintabDLL,
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126 PROCNAME(WTClose));
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127 #undef PROCNAME
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128
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129 if (!data->WTInfoA || !data->WTOpenA || !data->WTPacket
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130 || !data->WTClose) {
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131 FreeLibrary(data->wintabDLL);
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132 data->wintabDLL = NULL;
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133 }
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134 }
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135
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136 /* Set the function pointers */
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137 device->VideoInit = WIN_VideoInit;
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138 device->VideoQuit = WIN_VideoQuit;
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139 device->GetDisplayModes = WIN_GetDisplayModes;
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140 device->SetDisplayMode = WIN_SetDisplayMode;
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141 device->SetDisplayGammaRamp = WIN_SetDisplayGammaRamp;
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142 device->GetDisplayGammaRamp = WIN_GetDisplayGammaRamp;
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143 device->PumpEvents = WIN_PumpEvents;
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144
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145 #undef CreateWindow
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146 device->CreateWindow = WIN_CreateWindow;
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147 device->CreateWindowFrom = WIN_CreateWindowFrom;
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148 device->SetWindowTitle = WIN_SetWindowTitle;
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149 device->SetWindowPosition = WIN_SetWindowPosition;
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150 device->SetWindowSize = WIN_SetWindowSize;
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151 device->ShowWindow = WIN_ShowWindow;
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152 device->HideWindow = WIN_HideWindow;
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153 device->RaiseWindow = WIN_RaiseWindow;
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154 device->MaximizeWindow = WIN_MaximizeWindow;
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155 device->MinimizeWindow = WIN_MinimizeWindow;
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156 device->RestoreWindow = WIN_RestoreWindow;
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157 device->SetWindowGrab = WIN_SetWindowGrab;
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158 device->DestroyWindow = WIN_DestroyWindow;
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159 device->GetWindowWMInfo = WIN_GetWindowWMInfo;
1952
420716272158 Implemented X11 OpenGL support.
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160 #ifdef SDL_VIDEO_OPENGL_WGL
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161 device->GL_LoadLibrary = WIN_GL_LoadLibrary;
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162 device->GL_GetProcAddress = WIN_GL_GetProcAddress;
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163 device->GL_CreateContext = WIN_GL_CreateContext;
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164 device->GL_MakeCurrent = WIN_GL_MakeCurrent;
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165 device->GL_SetSwapInterval = WIN_GL_SetSwapInterval;
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166 device->GL_GetSwapInterval = WIN_GL_GetSwapInterval;
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167 device->GL_SwapWindow = WIN_GL_SwapWindow;
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168 device->GL_DeleteContext = WIN_GL_DeleteContext;
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169 #endif
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170
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171 device->free = WIN_DeleteDevice;
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172
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173 return device;
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174 }
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175
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176 VideoBootStrap WIN32_bootstrap = {
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177 "win32", "SDL Win32/64 video driver", WIN_Available, WIN_CreateDevice
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178 };
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179
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180
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181 int
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182 WIN_VideoInit(_THIS)
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183 {
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184 WIN_InitModes(_this);
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185
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186 #if SDL_VIDEO_RENDER_D3D
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187 D3D_AddRenderDriver(_this);
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188 #endif
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189 #if SDL_VIDEO_RENDER_GDI
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190 GDI_AddRenderDriver(_this);
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191 #endif
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192
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193 g_hCtx = SDL_malloc(sizeof(HCTX));
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194 WIN_InitKeyboard(_this);
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195 WIN_InitMouse(_this);
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196
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197 return 0;
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198 }
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199
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200 void
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201 WIN_VideoQuit(_THIS)
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diff changeset
202 {
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diff changeset
203 WIN_QuitModes(_this);
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204 WIN_QuitKeyboard(_this);
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205 WIN_QuitMouse(_this);
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diff changeset
206 SDL_free(g_hCtx);
1895
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207 }
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208
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diff changeset
209 /* vim: set ts=4 sw=4 expandtab: */