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annotate src/video/directfb/SDL_DirectFB_mouse.c @ 2247:93994f65c74c

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Removed hermes since it's LGPL and not compatible with a commercial license. Prepping for using MMX and SSE intrinsics instead of inline assembly. .. except for memcpy equivalents which only get faster if they can exploit the parallelism of loading into multiple SIMD registers. :)
author Sam Lantinga <slouken@libsdl.org>
date Wed, 15 Aug 2007 08:21:10 +0000
parents 0e70b4b8cf84
children 1e690901ecd7
rev   line source
2226
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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 #include "SDL_config.h"
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23
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24 #include "SDL_DirectFB_video.h"
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25 #include "SDL_DirectFB_mouse.h"
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26
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27 #include "../SDL_sysvideo.h"
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28 #include "../../events/SDL_mouse_c.h"
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29
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30 static SDL_Cursor *DirectFB_CreateCursor(SDL_Surface * surface, int hot_x,
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31 int hot_y);
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32 static int DirectFB_ShowCursor(SDL_Cursor * cursor);
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33 static void DirectFB_MoveCursor(SDL_Cursor * cursor);
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34 static void DirectFB_FreeCursor(SDL_Cursor * cursor);
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35 static void DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_WindowID windowID,
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36 int x, int y);
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37 static void DirectFB_FreeMouse(SDL_Mouse * mouse);
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38
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39 void
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40 DirectFB_InitMouse(_THIS)
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41 {
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42 SDL_DFB_DEVICEDATA(_this);
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43 SDL_Mouse mouse;
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44
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45 SDL_zero(mouse);
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46 mouse.CreateCursor = DirectFB_CreateCursor;
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47 mouse.ShowCursor = DirectFB_ShowCursor;
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48 mouse.MoveCursor = DirectFB_MoveCursor;
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49 mouse.FreeCursor = DirectFB_FreeCursor;
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50 mouse.WarpMouse = DirectFB_WarpMouse;
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51 mouse.FreeMouse = DirectFB_FreeMouse;
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52 devdata->mouse = SDL_AddMouse(&mouse, -1);
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53 }
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54
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55 void
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56 DirectFB_QuitMouse(_THIS)
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57 {
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58 SDL_DFB_DEVICEDATA(_this);
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59
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60 SDL_DelMouse(devdata->mouse);
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61 }
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62
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63 /* Create a cursor from a surface */
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64 static SDL_Cursor *
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65 DirectFB_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
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66 {
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67 SDL_VideoDevice *dev = SDL_GetVideoDevice();
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68
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69 SDL_DFB_DEVICEDATA(dev);
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70 DFB_CursorData *curdata;
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71 DFBResult ret;
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72 DFBSurfaceDescription dsc;
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73 SDL_Cursor *cursor;
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74 Uint32 *dest;
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75 Uint32 *p;
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76 int pitch, i;
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77
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78 SDL_DFB_CALLOC(cursor, 1, sizeof(*cursor));
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79 SDL_DFB_CALLOC(curdata, 1, sizeof(*curdata));
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80
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81 dsc.flags =
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82 DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
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83 dsc.caps = DSCAPS_NONE; //DSCAPS_SYSTEMONLY;
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84 dsc.width = surface->w;
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85 dsc.height = surface->h;
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86 dsc.pixelformat = DSPF_ARGB;
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87
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88 SDL_DFB_CHECKERR(devdata->dfb->
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89 CreateSurface(devdata->dfb, &dsc, &curdata->surf));
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90 curdata->hotx = hot_x;
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91 curdata->hoty = hot_y;
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92 cursor->driverdata = curdata;
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93
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94 SDL_DFB_CHECKERR(curdata->surf->
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95 Lock(curdata->surf, DSLF_WRITE, (void *) &dest, &pitch));
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96
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97 //FIXME: Implies a lot of things, e.g. rgba format for SDL_SURFACE ....
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98 p = surface->pixels;
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99 for (i = 0; i < surface->w * surface->h; i++)
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100 if (p[i] == 0x00000000)
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101 dest[i] = 0x00000000;
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102 else
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103 dest[i] = p[i];
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104 //memcpy(dest, surface->pixels, surface->w * surface->h * 4);
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105 curdata->surf->Unlock(curdata->surf);
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106 return cursor;
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107 error:
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108 return NULL;
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109 }
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110
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111 /* Show the specified cursor, or hide if cursor is NULL */
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112 static int
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113 DirectFB_ShowCursor(SDL_Cursor * cursor)
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114 {
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115 SDL_DFB_CURSORDATA(cursor);
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116 SDL_VideoDevice *dev = SDL_GetVideoDevice();
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117 SDL_DFB_DEVICEDATA(dev);
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118 #if 0
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119 DFB_DisplayData *dispdata =
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120 (DFB_DisplayData *) dev->displays[dev->current_display].driverdata;
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121 #endif
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122 DFBResult ret;
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123 SDL_WindowID wid;
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124
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125 wid = SDL_GetFocusWindow();
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126 if (!wid)
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127 return -1;
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128 else {
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129 SDL_Window *window = SDL_GetWindowFromID(wid);
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130 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
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131 DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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132 DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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133 SDL_DFB_CHECKERR(windata->window->
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134 SetCursorShape(windata->window, curdata->surf,
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135 curdata->hotx, curdata->hoty));
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136 //FIXME: This is somehow a directfb issue
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137 SDL_DFB_CHECKERR(dispdata->layer->
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138 SetCooperativeLevel(dispdata->layer,
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139 DLSCL_ADMINISTRATIVE));
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140 SDL_DFB_CHECKERR(dispdata->layer->
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141 SetCursorOpacity(dispdata->layer, 0xC0));
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142 SDL_DFB_CHECKERR(dispdata->layer->
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143 SetCooperativeLevel(dispdata->layer, DLSCL_SHARED));
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144 }
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145 #if 0
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146 //TODO: Check administrative
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147 SDL_DFB_CHECKERR(dispdata->layer->
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148 SetCooperativeLevel(dispdata->layer,
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149 DLSCL_ADMINISTRATIVE));
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150 SDL_DFB_CHECKERR(dispdata->layer->
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151 SetCursorShape(dispdata->layer, curdata->surf,
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152 curdata->hotx, curdata->hoty));
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153 SDL_DFB_CHECKERR(dispdata->layer->
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154 SetCursorOpacity(dispdata->layer, 0xC0));
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155 SDL_DFB_CHECKERR(dispdata->layer->
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156 SetCooperativeLevel(dispdata->layer, DLSCL_SHARED));
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157
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158 #endif
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159
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160 return 0;
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161 error:
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162 return -1;
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163 }
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164
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165 /* This is called when a mouse motion event occurs */
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166 static void
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167 DirectFB_MoveCursor(SDL_Cursor * cursor)
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168 {
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169 SDL_DFB_CURSORDATA(cursor);
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170 /* Do we need to do something here ? */
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171 }
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172
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173 /* Free a window manager cursor */
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174 static void
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175 DirectFB_FreeCursor(SDL_Cursor * cursor)
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176 {
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177 SDL_DFB_CURSORDATA(cursor);
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178
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179 SDL_DFB_RELEASE(curdata->surf);
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180 SDL_DFB_FREE(cursor->driverdata);
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181 SDL_DFB_FREE(cursor);
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182 }
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183
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184 /* Warp the mouse to (x,y) */
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185 static void
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186 DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_WindowID windowID, int x, int y)
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187 {
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188 // SDL_DFB_CURSORDATA(cursor);
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189 SDL_Window *window = SDL_GetWindowFromID(windowID);
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190 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
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191 DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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192 DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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193 DFBResult ret;
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194 int cx, cy;
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195
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196 SDL_DFB_CHECKERR(windata->window->GetPosition(windata->window, &cx, &cy));
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197 SDL_DFB_CHECKERR(dispdata->layer->
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198 WarpCursor(dispdata->layer, cx + x, cy + y));
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199
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200 error:
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201 return;
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202 }
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203
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204 /* Free the mouse when it's time */
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205 static void
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206 DirectFB_FreeMouse(SDL_Mouse * mouse)
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207 {
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208 // nothing yet
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209
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210 }
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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211
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212 /* vi: set ts=4 sw=4 expandtab: */