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annotate src/video/directfb/SDL_DirectFB_video.c @ 2838:00356f22195a

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Fixed SDL_SetAlpha compatibility function to match the documentation
author Sam Lantinga <slouken@libsdl.org>
date Sat, 06 Dec 2008 05:49:53 +0000
parents 140a7edcf2bd
children 99210400e8b9
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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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 SDL1.3 implementation by couriersud@arcor.de
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23
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24 */
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25
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26
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27 #include "SDL_config.h"
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28
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29 /* DirectFB video driver implementation.
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30 */
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31
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32 #include <fcntl.h>
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33 #include <unistd.h>
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34 #include <sys/mman.h>
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35
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36 #include <directfb.h>
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37 #include <directfb_version.h>
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38
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39 #include "SDL_video.h"
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40 #include "SDL_mouse.h"
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41 #include "../SDL_sysvideo.h"
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42 #include "../SDL_pixels_c.h"
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43 #include "../../events/SDL_events_c.h"
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44 #include "SDL_DirectFB_video.h"
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45 #include "SDL_DirectFB_events.h"
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46 #include "SDL_DirectFB_render.h"
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47 #include "SDL_DirectFB_mouse.h"
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48
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49 /* Initialization/Query functions */
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50 static int DirectFB_VideoInit(_THIS);
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51 static void DirectFB_VideoQuit(_THIS);
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52
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53 static int DirectFB_Available(void);
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54 static SDL_VideoDevice *DirectFB_CreateDevice(int devindex);
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55
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56 static int DirectFB_SetDisplayGammaRamp(_THIS, Uint16 * ramp);
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57 static int DirectFB_GetDisplayGammaRamp(_THIS, Uint16 * ramp);
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58
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59 VideoBootStrap DirectFB_bootstrap = {
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60 "directfb", "DirectFB",
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61 DirectFB_Available, DirectFB_CreateDevice
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62 };
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63
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64 /* DirectFB driver bootstrap functions */
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65
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66 static int
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67 DirectFB_Available(void)
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68 {
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69 return 1;
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70 }
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71
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72 static void
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73 DirectFB_DeleteDevice(SDL_VideoDevice * device)
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74 {
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75 SDL_free(device->driverdata);
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76 SDL_free(device);
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77 }
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78
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79 static SDL_VideoDevice *
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80 DirectFB_CreateDevice(int devindex)
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81 {
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82 SDL_VideoDevice *device;
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83
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84 /* Initialize all variables that we clean on shutdown */
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85 SDL_DFB_CALLOC(device, 1, sizeof(SDL_VideoDevice));
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86
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87 /* Set the function pointers */
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88
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89 /* Set the function pointers */
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90 device->VideoInit = DirectFB_VideoInit;
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91 device->VideoQuit = DirectFB_VideoQuit;
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92 device->GetDisplayModes = DirectFB_GetDisplayModes;
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93 device->SetDisplayMode = DirectFB_SetDisplayMode;
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94 #if 0
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95 device->SetDisplayGammaRamp = DirectFB_SetDisplayGammaRamp;
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96 device->GetDisplayGammaRamp = DirectFB_GetDisplayGammaRamp;
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97 #else
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98 device->SetDisplayGammaRamp = NULL;
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99 device->GetDisplayGammaRamp = NULL;
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100 #endif
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101 device->PumpEvents = DirectFB_PumpEventsWindow;
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102 device->CreateWindow = DirectFB_CreateWindow;
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103 device->CreateWindowFrom = DirectFB_CreateWindowFrom;
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104 device->SetWindowTitle = DirectFB_SetWindowTitle;
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105 device->SetWindowPosition = DirectFB_SetWindowPosition;
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106 device->SetWindowSize = DirectFB_SetWindowSize;
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107 device->ShowWindow = DirectFB_ShowWindow;
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108 device->HideWindow = DirectFB_HideWindow;
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109 device->RaiseWindow = DirectFB_RaiseWindow;
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110 device->MaximizeWindow = DirectFB_MaximizeWindow;
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111 device->MinimizeWindow = DirectFB_MinimizeWindow;
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112 device->RestoreWindow = DirectFB_RestoreWindow;
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113 device->SetWindowGrab = DirectFB_SetWindowGrab;
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114 device->DestroyWindow = DirectFB_DestroyWindow;
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115 device->GetWindowWMInfo = DirectFB_GetWindowWMInfo;
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116
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117 #if SDL_DIRECTFB_OPENGL
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118 device->GL_LoadLibrary = DirectFB_GL_LoadLibrary;
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119 device->GL_GetProcAddress = DirectFB_GL_GetProcAddress;
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120 device->GL_MakeCurrent = DirectFB_GL_MakeCurrent;
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121
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122 device->GL_CreateContext = DirectFB_GL_CreateContext;
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123 device->GL_SetSwapInterval = DirectFB_GL_SetSwapInterval;
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124 device->GL_GetSwapInterval = DirectFB_GL_GetSwapInterval;
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125 device->GL_SwapWindow = DirectFB_GL_SwapWindow;
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126 device->GL_DeleteContext = DirectFB_GL_DeleteContext;
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127
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128 #endif
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129
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130 device->free = DirectFB_DeleteDevice;
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131
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132 return device;
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133 error:
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134 if (device)
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135 free(device);
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136 return (0);
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137 }
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138
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139 static int
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140 DirectFB_VideoInit(_THIS)
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141 {
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142 IDirectFB *dfb = NULL;
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143 DFB_DeviceData *devdata;
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144 char *stemp;
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145 DFBResult ret;
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146
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147 SDL_DFB_CHECKERR(DirectFBInit(NULL, NULL));
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148 SDL_DFB_CHECKERR(DirectFBCreate(&dfb));
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149
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150 SDL_DFB_CALLOC(devdata, 1, sizeof(*devdata));
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151
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152 devdata->use_yuv_underlays = 0; /* default: off */
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153 stemp = getenv(DFBENV_USE_YUV_UNDERLAY);
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154 if (stemp)
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155 devdata->use_yuv_underlays = atoi(stemp);
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156
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157 /* Create global Eventbuffer for axis events */
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158 SDL_DFB_CHECKERR(dfb->
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159 CreateInputEventBuffer(dfb, DICAPS_AXES /*DICAPS_ALL */ ,
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160 DFB_TRUE, &devdata->events));
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161
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162 devdata->initialized = 1;
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163 devdata->dfb = dfb;
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164 devdata->firstwin = NULL;
464
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165
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166 _this->driverdata = devdata;
464
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167
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168 DirectFB_InitModes(_this);
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169
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170 #if SDL_DIRECTFB_OPENGL
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171 DirectFB_GL_Initialize(_this);
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172 #endif
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173
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174 DirectFB_AddRenderDriver(_this);
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175 DirectFB_InitMouse(_this);
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176 DirectFB_InitKeyboard(_this);
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177
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178
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179 return 0;
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180
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181
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182 error:
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183 SDL_DFB_RELEASE(dfb);
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184 return -1;
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185 }
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186
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187 static void
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188 DirectFB_VideoQuit(_THIS)
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189 {
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190 DFB_DeviceData *devdata = (DFB_DeviceData *) _this->driverdata;
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191
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192 DirectFB_QuitModes(_this);
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193 DirectFB_QuitKeyboard(_this);
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194 DirectFB_QuitMouse(_this);
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diff changeset
195
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196 SDL_DFB_RELEASE(devdata->events);
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197 SDL_DFB_RELEASE(devdata->dfb);
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198 SDL_DFB_FREE(_this->driverdata);
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199
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200 #if SDL_DIRECTFB_OPENGL
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201 DirectFB_GL_Shutdown(_this);
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202 #endif
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203
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204 devdata->initialized = 0;
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205 }
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206
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diff changeset
207 static int
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208 DirectFB_SetDisplayGammaRamp(_THIS, Uint16 * ramp)
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209 {
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210 return -1;
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211 }
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diff changeset
212
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213 static int
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214 DirectFB_GetDisplayGammaRamp(_THIS, Uint16 * ramp)
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diff changeset
215 {
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216 return -1;
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217 }