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annotate src/video/directfb/SDL_DirectFB_video.c @ 3469:8c5fb2a3b11d

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RenderReadPixels and RenderWritePixels functions work with back buffer now and all asynchronous operations are flushed before reading or writing to backbuffer. Thanks Sam for clarification of this.
author Mike Gorchak <lestat@i.com.ua>
date Sat, 21 Nov 2009 06:17:50 +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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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;
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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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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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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) {
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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