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annotate src/video/directfb/SDL_DirectFB_video.c @ 4590:1ad70fb49fcb

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Fix so many things that there is little place in this column to list them all but the result is that blending modes just work now for drawing primitives. Fixes involved: 1. Fix handling of alpha channel when SDL_BLENDMODE_NONE is set. 2. Make xrendercolor use floating-point values for color channels and then convert to 16 bit ints. 3. Fix handling of visuals in SDL_x11modes.c so that a 32 bit ARGB visual is used. 4. Fix the background pixel value in SDL_x11window.c so that the window background has an alpha value of 0xFF and not 0.
author Sunny Sachanandani <sunnysachanandani@gmail.com>
date Fri, 09 Jul 2010 21:36:41 +0530
parents f7b03b6838cb
children 25b9cd8bdc30
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 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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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 if (!SDL_DirectFB_LoadLibrary())
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70 return 0;
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71 SDL_DirectFB_UnLoadLibrary();
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72 return 1;
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73 }
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74
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75 static void
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76 DirectFB_DeleteDevice(SDL_VideoDevice * device)
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77 {
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78 SDL_DirectFB_UnLoadLibrary();
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79 SDL_DFB_FREE(device->driverdata);
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80 SDL_DFB_FREE(device);
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81 }
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82
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83 static SDL_VideoDevice *
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84 DirectFB_CreateDevice(int devindex)
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85 {
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86 SDL_VideoDevice *device;
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87
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88 if (!SDL_DirectFB_LoadLibrary())
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89 return NULL;
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90
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91 /* Initialize all variables that we clean on shutdown */
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92 SDL_DFB_CALLOC(device, 1, sizeof(SDL_VideoDevice));
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93
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94 /* Set the function pointers */
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95
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96 /* Set the function pointers */
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97 device->VideoInit = DirectFB_VideoInit;
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98 device->VideoQuit = DirectFB_VideoQuit;
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99 device->GetDisplayModes = DirectFB_GetDisplayModes;
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100 device->SetDisplayMode = DirectFB_SetDisplayMode;
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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->SetWindowIcon = DirectFB_SetWindowIcon;
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106 device->SetWindowPosition = DirectFB_SetWindowPosition;
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107 device->SetWindowSize = DirectFB_SetWindowSize;
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108 device->ShowWindow = DirectFB_ShowWindow;
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109 device->HideWindow = DirectFB_HideWindow;
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110 device->RaiseWindow = DirectFB_RaiseWindow;
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111 device->MaximizeWindow = DirectFB_MaximizeWindow;
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112 device->MinimizeWindow = DirectFB_MinimizeWindow;
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113 device->RestoreWindow = DirectFB_RestoreWindow;
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114 device->SetWindowGrab = DirectFB_SetWindowGrab;
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115 device->DestroyWindow = DirectFB_DestroyWindow;
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116 device->GetWindowWMInfo = DirectFB_GetWindowWMInfo;
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117
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118 #if SDL_DIRECTFB_OPENGL
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119 device->GL_LoadLibrary = DirectFB_GL_LoadLibrary;
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120 device->GL_GetProcAddress = DirectFB_GL_GetProcAddress;
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121 device->GL_MakeCurrent = DirectFB_GL_MakeCurrent;
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122
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123 device->GL_CreateContext = DirectFB_GL_CreateContext;
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124 device->GL_SetSwapInterval = DirectFB_GL_SetSwapInterval;
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125 device->GL_GetSwapInterval = DirectFB_GL_GetSwapInterval;
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126 device->GL_SwapWindow = DirectFB_GL_SwapWindow;
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127 device->GL_DeleteContext = DirectFB_GL_DeleteContext;
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128
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129 #endif
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130
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131 device->free = DirectFB_DeleteDevice;
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132
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133 return device;
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134 error:
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135 if (device)
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136 free(device);
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diff changeset
137 return (0);
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138 }
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139
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140 static const DirectFBSurfaceDrawingFlagsNames(drawing_flags);
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141 static const DirectFBSurfaceBlittingFlagsNames(blitting_flags);
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142 static const DirectFBAccelerationMaskNames(acceleration_mask);
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143
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144 static void
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145 DirectFB_DeviceInformation(IDirectFB * dfb)
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146 {
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147 DFBGraphicsDeviceDescription desc;
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148 int n;
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149
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150 dfb->GetDeviceDescription(dfb, &desc);
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151
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152 fprintf(LOG_CHANNEL, "DirectFB Device Information\n");
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153 fprintf(LOG_CHANNEL, "===========================\n");
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154 fprintf(LOG_CHANNEL, "Name: %s\n", desc.name);
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155 fprintf(LOG_CHANNEL, "Vendor: %s\n", desc.vendor);
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156 fprintf(LOG_CHANNEL, "Driver Name: %s\n", desc.driver.name);
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157 fprintf(LOG_CHANNEL, "Driver Vendor: %s\n", desc.driver.vendor);
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158 fprintf(LOG_CHANNEL, "Driver Version: %d.%d\n", desc.driver.major,
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diff changeset
159 desc.driver.minor);
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diff changeset
160
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diff changeset
161 fprintf(LOG_CHANNEL, "\nVideo memoory: %d\n", desc.video_memory);
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diff changeset
162
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diff changeset
163 fprintf(LOG_CHANNEL, "\nBlitting flags:\n");
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diff changeset
164 for (n = 0; blitting_flags[n].flag; n++) {
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165 if (desc.blitting_flags & blitting_flags[n].flag)
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166 printf(" %s\n", blitting_flags[n].name);
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167 }
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diff changeset
168
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diff changeset
169 fprintf(LOG_CHANNEL, "\nDrawing flags:\n");
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170 for (n = 0; drawing_flags[n].flag; n++) {
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171 if (desc.drawing_flags & drawing_flags[n].flag)
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diff changeset
172 printf(" %s\n", drawing_flags[n].name);
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173 }
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diff changeset
174
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diff changeset
175 fprintf(LOG_CHANNEL, "\nAcceleration flags:\n");
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diff changeset
176 for (n = 0; acceleration_mask[n].mask; n++) {
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177 if (desc.acceleration_mask & acceleration_mask[n].mask)
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178 printf(" %s\n", acceleration_mask[n].name);
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179 }
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180
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181
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182 }
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183
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184 static int
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185 DirectFB_VideoInit(_THIS)
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186 {
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187 IDirectFB *dfb = NULL;
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188 DFB_DeviceData *devdata = NULL;
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diff changeset
189 char *stemp;
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190 DFBResult ret;
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diff changeset
191
2998
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diff changeset
192 SDL_DFB_CALLOC(devdata, 1, sizeof(*devdata));
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diff changeset
193
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194 SDL_DFB_CHECKERR(DirectFBInit(NULL, NULL));
2998
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195
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diff changeset
196 /* avoid switching to the framebuffer when we
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diff changeset
197 * are running X11 */
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diff changeset
198 stemp = SDL_getenv(DFBENV_USE_X11_CHECK);
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diff changeset
199 if (stemp)
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diff changeset
200 ret = atoi(stemp);
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
201 else
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
202 ret = 1;
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diff changeset
203
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diff changeset
204 if (ret) {
3023
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diff changeset
205 if (SDL_getenv("DISPLAY"))
2998
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diff changeset
206 DirectFBSetOption("system", "x11");
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diff changeset
207 else
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
208 DirectFBSetOption("disable-module", "x11input");
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diff changeset
209 }
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diff changeset
210
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diff changeset
211 devdata->use_linux_input = 1; /* default: on */
3023
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diff changeset
212 stemp = SDL_getenv(DFBENV_USE_LINUX_INPUT);
2998
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diff changeset
213 if (stemp)
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
214 devdata->use_linux_input = atoi(stemp);
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diff changeset
215
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
216 if (!devdata->use_linux_input)
d364ee9b9c15 Date: Sun, 04 Jan 2009 20:53:30 +0100
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diff changeset
217 DirectFBSetOption("disable-module", "linux_input");
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diff changeset
218
2226
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diff changeset
219 SDL_DFB_CHECKERR(DirectFBCreate(&dfb));
167
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diff changeset
220
3023
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diff changeset
221 DirectFB_DeviceInformation(dfb);
2737
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diff changeset
222 devdata->use_yuv_underlays = 0; /* default: off */
3023
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diff changeset
223 stemp = SDL_getenv(DFBENV_USE_YUV_UNDERLAY);
2737
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diff changeset
224 if (stemp)
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diff changeset
225 devdata->use_yuv_underlays = atoi(stemp);
2226
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diff changeset
226
2998
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diff changeset
227
2737
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diff changeset
228 /* Create global Eventbuffer for axis events */
2998
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diff changeset
229 if (devdata->use_linux_input) {
3023
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diff changeset
230 SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_ALL,
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diff changeset
231 DFB_TRUE,
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Couriersud <couriersud@arcor.de>
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diff changeset
232 &devdata->events));
2860
6ce28e5287e9 Date: Sun, 07 Dec 2008 13:35:23 +0100
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diff changeset
233 } else {
3023
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diff changeset
234 SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_AXES
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diff changeset
235 /*DICAPS_ALL */ ,
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diff changeset
236 DFB_TRUE,
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Couriersud <couriersud@arcor.de>
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diff changeset
237 &devdata->events));
2860
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diff changeset
238 }
167
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parents:
diff changeset
239
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diff changeset
240 devdata->initialized = 1;
3023
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diff changeset
241
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diff changeset
242 /* simple window manager support */
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diff changeset
243 stemp = SDL_getenv(DFBENV_USE_WM);
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diff changeset
244 if (stemp)
3040
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diff changeset
245 devdata->has_own_wm = atoi(stemp);
3023
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diff changeset
246 else
3040
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diff changeset
247 devdata->has_own_wm = 0;
3023
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diff changeset
248
2226
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diff changeset
249 devdata->dfb = dfb;
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diff changeset
250 devdata->firstwin = NULL;
464
1c4be4a16410 Date: Fri, 23 Aug 2002 11:48:56 +0200
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parents: 297
diff changeset
251
2226
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diff changeset
252 _this->driverdata = devdata;
464
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parents: 297
diff changeset
253
2737
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diff changeset
254 DirectFB_InitModes(_this);
464
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parents: 297
diff changeset
255
2226
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diff changeset
256 #if SDL_DIRECTFB_OPENGL
2737
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diff changeset
257 DirectFB_GL_Initialize(_this);
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258 #endif
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259
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260 DirectFB_AddRenderDriver(_this);
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261 DirectFB_InitMouse(_this);
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262 DirectFB_InitKeyboard(_this);
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263
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264 return 0;
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265
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266
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267 error:
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268 SDL_DFB_FREE(devdata);
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269 SDL_DFB_RELEASE(dfb);
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270 return -1;
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271 }
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272
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273 static void
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274 DirectFB_VideoQuit(_THIS)
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275 {
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276 DFB_DeviceData *devdata = (DFB_DeviceData *) _this->driverdata;
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277
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278 DirectFB_QuitModes(_this);
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279 DirectFB_QuitKeyboard(_this);
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280 DirectFB_QuitMouse(_this);
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281
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282 SDL_DFB_RELEASE(devdata->events);
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283 SDL_DFB_RELEASE(devdata->dfb);
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284
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285 #if SDL_DIRECTFB_OPENGL
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286 DirectFB_GL_Shutdown(_this);
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287 #endif
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288
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289 devdata->initialized = 0;
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290 }