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annotate src/video/directfb/SDL_DirectFB_video.c @ 3473:7bdc10624cba

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This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Nov 2009 07:14:21 +0000
parents 62d4992e5a92
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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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 #include <directfb_strings.h>
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39
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40 #include "SDL_video.h"
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41 #include "SDL_mouse.h"
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42 #include "../SDL_sysvideo.h"
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43 #include "../SDL_pixels_c.h"
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44 #include "../../events/SDL_events_c.h"
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45 #include "SDL_DirectFB_video.h"
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46 #include "SDL_DirectFB_events.h"
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47 #include "SDL_DirectFB_render.h"
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48 #include "SDL_DirectFB_mouse.h"
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49
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50 #include "SDL_DirectFB_dyn.h"
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51
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52 /* Initialization/Query functions */
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53 static int DirectFB_VideoInit(_THIS);
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54 static void DirectFB_VideoQuit(_THIS);
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55
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56 static int DirectFB_Available(void);
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57 static SDL_VideoDevice *DirectFB_CreateDevice(int devindex);
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58
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59 #if 0
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60 static int DirectFB_SetDisplayGammaRamp(_THIS, Uint16 * ramp);
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61 static int DirectFB_GetDisplayGammaRamp(_THIS, Uint16 * ramp);
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62 #endif
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63
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64 VideoBootStrap DirectFB_bootstrap = {
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65 "directfb", "DirectFB",
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66 DirectFB_Available, DirectFB_CreateDevice
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67 };
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69 /* DirectFB driver bootstrap functions */
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70
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71 static int
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72 DirectFB_Available(void)
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73 {
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74 if (!SDL_DirectFB_LoadLibrary())
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75 return 0;
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76 SDL_DirectFB_UnLoadLibrary();
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77 return 1;
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78 }
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79
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80 static void
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81 DirectFB_DeleteDevice(SDL_VideoDevice * device)
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82 {
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83 SDL_DirectFB_UnLoadLibrary();
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84 SDL_DFB_FREE(device->driverdata);
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85 SDL_DFB_FREE(device);
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86 }
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87
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88 static SDL_VideoDevice *
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89 DirectFB_CreateDevice(int devindex)
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90 {
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91 SDL_VideoDevice *device;
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92
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93 if (!SDL_DirectFB_LoadLibrary())
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94 return NULL;
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95
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96 /* Initialize all variables that we clean on shutdown */
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97 SDL_DFB_CALLOC(device, 1, sizeof(SDL_VideoDevice));
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98
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99 /* Set the function pointers */
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100
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101 /* Set the function pointers */
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102 device->VideoInit = DirectFB_VideoInit;
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103 device->VideoQuit = DirectFB_VideoQuit;
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104 device->GetDisplayModes = DirectFB_GetDisplayModes;
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105 device->SetDisplayMode = DirectFB_SetDisplayMode;
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106 #if 0
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107 device->SetDisplayGammaRamp = DirectFB_SetDisplayGammaRamp;
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108 device->GetDisplayGammaRamp = DirectFB_GetDisplayGammaRamp;
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109 #else
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110 device->SetDisplayGammaRamp = NULL;
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111 device->GetDisplayGammaRamp = NULL;
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112 #endif
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113 device->PumpEvents = DirectFB_PumpEventsWindow;
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114 device->CreateWindow = DirectFB_CreateWindow;
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115 device->CreateWindowFrom = DirectFB_CreateWindowFrom;
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116 device->SetWindowTitle = DirectFB_SetWindowTitle;
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117 device->SetWindowIcon = DirectFB_SetWindowIcon;
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118 device->SetWindowPosition = DirectFB_SetWindowPosition;
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119 device->SetWindowSize = DirectFB_SetWindowSize;
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120 device->ShowWindow = DirectFB_ShowWindow;
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121 device->HideWindow = DirectFB_HideWindow;
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122 device->RaiseWindow = DirectFB_RaiseWindow;
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123 device->MaximizeWindow = DirectFB_MaximizeWindow;
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124 device->MinimizeWindow = DirectFB_MinimizeWindow;
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125 device->RestoreWindow = DirectFB_RestoreWindow;
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126 device->SetWindowGrab = DirectFB_SetWindowGrab;
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127 device->DestroyWindow = DirectFB_DestroyWindow;
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128 device->GetWindowWMInfo = DirectFB_GetWindowWMInfo;
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129
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130 #if SDL_DIRECTFB_OPENGL
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131 device->GL_LoadLibrary = DirectFB_GL_LoadLibrary;
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132 device->GL_GetProcAddress = DirectFB_GL_GetProcAddress;
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133 device->GL_MakeCurrent = DirectFB_GL_MakeCurrent;
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134
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135 device->GL_CreateContext = DirectFB_GL_CreateContext;
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136 device->GL_SetSwapInterval = DirectFB_GL_SetSwapInterval;
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137 device->GL_GetSwapInterval = DirectFB_GL_GetSwapInterval;
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138 device->GL_SwapWindow = DirectFB_GL_SwapWindow;
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139 device->GL_DeleteContext = DirectFB_GL_DeleteContext;
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140
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141 #endif
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142
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143 device->free = DirectFB_DeleteDevice;
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144
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145 return device;
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146 error:
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147 if (device)
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148 free(device);
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149 return (0);
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150 }
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151
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152 static const DirectFBSurfaceDrawingFlagsNames(drawing_flags);
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153 static const DirectFBSurfaceBlittingFlagsNames(blitting_flags);
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154 static const DirectFBAccelerationMaskNames(acceleration_mask);
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155
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156 static void
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157 DirectFB_DeviceInformation(IDirectFB * dfb)
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158 {
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159 DFBGraphicsDeviceDescription desc;
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160 int n;
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161
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162 dfb->GetDeviceDescription(dfb, &desc);
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163
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164 fprintf(LOG_CHANNEL, "DirectFB Device Information\n");
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165 fprintf(LOG_CHANNEL, "===========================\n");
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166 fprintf(LOG_CHANNEL, "Name: %s\n", desc.name);
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167 fprintf(LOG_CHANNEL, "Vendor: %s\n", desc.vendor);
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168 fprintf(LOG_CHANNEL, "Driver Name: %s\n", desc.driver.name);
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169 fprintf(LOG_CHANNEL, "Driver Vendor: %s\n", desc.driver.vendor);
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170 fprintf(LOG_CHANNEL, "Driver Version: %d.%d\n", desc.driver.major,
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diff changeset
171 desc.driver.minor);
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172
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173 fprintf(LOG_CHANNEL, "\nVideo memoory: %d\n", desc.video_memory);
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174
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175 fprintf(LOG_CHANNEL, "\nBlitting flags:\n");
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176 for (n = 0; blitting_flags[n].flag; n++) {
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177 if (desc.blitting_flags & blitting_flags[n].flag)
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178 printf(" %s\n", blitting_flags[n].name);
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179 }
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180
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181 fprintf(LOG_CHANNEL, "\nDrawing flags:\n");
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182 for (n = 0; drawing_flags[n].flag; n++) {
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183 if (desc.drawing_flags & drawing_flags[n].flag)
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184 printf(" %s\n", drawing_flags[n].name);
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185 }
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186
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187 fprintf(LOG_CHANNEL, "\nAcceleration flags:\n");
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188 for (n = 0; acceleration_mask[n].mask; n++) {
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189 if (desc.acceleration_mask & acceleration_mask[n].mask)
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190 printf(" %s\n", acceleration_mask[n].name);
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191 }
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192
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193
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194 }
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195
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196 static int
2226
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197 DirectFB_VideoInit(_THIS)
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198 {
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199 IDirectFB *dfb = NULL;
2998
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200 DFB_DeviceData *devdata = NULL;
2737
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diff changeset
201 char *stemp;
2226
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202 DFBResult ret;
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diff changeset
203
2998
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diff changeset
204 SDL_DFB_CALLOC(devdata, 1, sizeof(*devdata));
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diff changeset
205
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diff changeset
206 SDL_DFB_CHECKERR(DirectFBInit(NULL, NULL));
2998
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diff changeset
207
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diff changeset
208 /* avoid switching to the framebuffer when we
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diff changeset
209 * are running X11 */
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diff changeset
210 stemp = SDL_getenv(DFBENV_USE_X11_CHECK);
2998
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diff changeset
211 if (stemp)
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diff changeset
212 ret = atoi(stemp);
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diff changeset
213 else
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
214 ret = 1;
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diff changeset
215
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diff changeset
216 if (ret) {
3023
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diff changeset
217 if (SDL_getenv("DISPLAY"))
2998
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diff changeset
218 DirectFBSetOption("system", "x11");
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diff changeset
219 else
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
220 DirectFBSetOption("disable-module", "x11input");
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diff changeset
221 }
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
222
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diff changeset
223 devdata->use_linux_input = 1; /* default: on */
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diff changeset
224 stemp = SDL_getenv(DFBENV_USE_LINUX_INPUT);
2998
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diff changeset
225 if (stemp)
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diff changeset
226 devdata->use_linux_input = atoi(stemp);
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diff changeset
227
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diff changeset
228 if (!devdata->use_linux_input)
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diff changeset
229 DirectFBSetOption("disable-module", "linux_input");
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diff changeset
230
2226
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diff changeset
231 SDL_DFB_CHECKERR(DirectFBCreate(&dfb));
167
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diff changeset
232
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diff changeset
233 DirectFB_DeviceInformation(dfb);
2737
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diff changeset
234 devdata->use_yuv_underlays = 0; /* default: off */
3023
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diff changeset
235 stemp = SDL_getenv(DFBENV_USE_YUV_UNDERLAY);
2737
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diff changeset
236 if (stemp)
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diff changeset
237 devdata->use_yuv_underlays = atoi(stemp);
2226
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diff changeset
238
2998
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diff changeset
239
2737
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diff changeset
240 /* Create global Eventbuffer for axis events */
2998
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diff changeset
241 if (devdata->use_linux_input) {
3023
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diff changeset
242 SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_ALL,
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diff changeset
243 DFB_TRUE,
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diff changeset
244 &devdata->events));
2860
6ce28e5287e9 Date: Sun, 07 Dec 2008 13:35:23 +0100
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diff changeset
245 } else {
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diff changeset
246 SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_AXES
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diff changeset
247 /*DICAPS_ALL */ ,
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diff changeset
248 DFB_TRUE,
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diff changeset
249 &devdata->events));
2860
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diff changeset
250 }
167
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diff changeset
251
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diff changeset
252 devdata->initialized = 1;
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diff changeset
253
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diff changeset
254 /* simple window manager support */
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diff changeset
255 stemp = SDL_getenv(DFBENV_USE_WM);
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diff changeset
256 if (stemp)
3040
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diff changeset
257 devdata->has_own_wm = atoi(stemp);
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258 else
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259 devdata->has_own_wm = 0;
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260
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261 devdata->dfb = dfb;
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262 devdata->firstwin = NULL;
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263
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264 _this->driverdata = devdata;
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265
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266 DirectFB_InitModes(_this);
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267
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268 #if SDL_DIRECTFB_OPENGL
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269 DirectFB_GL_Initialize(_this);
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270 #endif
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271
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272 DirectFB_AddRenderDriver(_this);
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273 DirectFB_InitMouse(_this);
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274 DirectFB_InitKeyboard(_this);
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275
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276 return 0;
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277
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278
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279 error:
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280 SDL_DFB_FREE(devdata);
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281 SDL_DFB_RELEASE(dfb);
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282 return -1;
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283 }
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284
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285 static void
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286 DirectFB_VideoQuit(_THIS)
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287 {
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288 DFB_DeviceData *devdata = (DFB_DeviceData *) _this->driverdata;
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289
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290 DirectFB_QuitModes(_this);
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291 DirectFB_QuitKeyboard(_this);
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292 DirectFB_QuitMouse(_this);
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293
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294 SDL_DFB_RELEASE(devdata->events);
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295 SDL_DFB_RELEASE(devdata->dfb);
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296
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297 #if SDL_DIRECTFB_OPENGL
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298 DirectFB_GL_Shutdown(_this);
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299 #endif
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300
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301 devdata->initialized = 0;
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302 }
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303
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304 #if 0
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305 static int
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306 DirectFB_SetDisplayGammaRamp(_THIS, Uint16 * ramp)
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307 {
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308 return -1;
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309 }
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310
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311 static int
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312 DirectFB_GetDisplayGammaRamp(_THIS, Uint16 * ramp)
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313 {
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314 return -1;
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315 }
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316 #endif