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annotate src/video/directfb/SDL_DirectFB_mouse.c @ 2877:e2b1abe04641

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Reminder to implement icon support
author Sam Lantinga <slouken@libsdl.org>
date Fri, 19 Dec 2008 04:42:18 +0000
parents 6ce28e5287e9
children b93965a16fe0
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 #include "SDL_config.h"
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23
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24 #include "SDL_DirectFB_video.h"
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25
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26 #include "../SDL_sysvideo.h"
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27 #include "../../events/SDL_mouse_c.h"
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28
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29 static SDL_Cursor *DirectFB_CreateCursor(SDL_Surface * surface, int hot_x,
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30 int hot_y);
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31 static int DirectFB_ShowCursor(SDL_Cursor * cursor);
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32 static void DirectFB_MoveCursor(SDL_Cursor * cursor);
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33 static void DirectFB_FreeCursor(SDL_Cursor * cursor);
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34 static void DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_WindowID windowID,
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35 int x, int y);
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36 static void DirectFB_FreeMouse(SDL_Mouse * mouse);
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37
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38 static int id_mask;
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39
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40 static DFBEnumerationResult
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41 EnumMice(DFBInputDeviceID device_id,
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42 DFBInputDeviceDescription desc, void *callbackdata)
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43 {
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44 DFB_DeviceData *devdata = callbackdata;
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45
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46 if ((desc.type & DIDTF_MOUSE) && (device_id & id_mask)) {
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47 SDL_Mouse mouse;
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48
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49 SDL_zero(mouse);
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50 mouse.CreateCursor = DirectFB_CreateCursor;
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51 mouse.ShowCursor = DirectFB_ShowCursor;
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52 mouse.MoveCursor = DirectFB_MoveCursor;
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53 mouse.FreeCursor = DirectFB_FreeCursor;
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54 mouse.WarpMouse = DirectFB_WarpMouse;
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55 mouse.FreeMouse = DirectFB_FreeMouse;
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56 mouse.cursor_shown = 1;
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57
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58 SDL_SetMouseIndexId(device_id, devdata->num_mice);
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59 SDL_AddMouse(&mouse, devdata->num_mice, desc.name, 0, 0, 1);
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60 devdata->mouse_id[devdata->num_mice] = device_id;
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61 devdata->num_mice++;
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62 }
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63 return DFENUM_OK;
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64 }
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65
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66 void
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67 DirectFB_InitMouse(_THIS)
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68 {
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69 SDL_DFB_DEVICEDATA(_this);
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70
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71 devdata->num_mice = 0;
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72 if (LINUX_INPUT_SUPPORT) {
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73 /* try non-core devices first */
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74 id_mask = 0xF0;
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75 devdata->dfb->EnumInputDevices(devdata->dfb, EnumMice, devdata);
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76 if (devdata->num_mice == 0) {
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77 /* try core devices */
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78 id_mask = 0x0F;
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79 devdata->dfb->EnumInputDevices(devdata->dfb, EnumMice, devdata);
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80 }
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81 }
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82 if (devdata->num_mice == 0) {
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83 SDL_Mouse mouse;
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84
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85 SDL_zero(mouse);
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86 mouse.CreateCursor = DirectFB_CreateCursor;
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87 mouse.ShowCursor = DirectFB_ShowCursor;
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88 mouse.MoveCursor = DirectFB_MoveCursor;
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89 mouse.FreeCursor = DirectFB_FreeCursor;
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90 mouse.WarpMouse = DirectFB_WarpMouse;
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91 mouse.FreeMouse = DirectFB_FreeMouse;
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92 mouse.cursor_shown = 1;
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93
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94 SDL_SetMouseIndexId(0, 0); /* ID == Index ! */
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95 devdata->mouse_id[0] = 0;
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96 SDL_AddMouse(&mouse, 0, "Mouse", 0, 0, 1);
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97 devdata->num_mice = 1;
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98 }
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99 }
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100
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101 void
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102 DirectFB_QuitMouse(_THIS)
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103 {
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104 SDL_DFB_DEVICEDATA(_this);
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105
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106 if (LINUX_INPUT_SUPPORT) {
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107 SDL_MouseQuit();
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108 } else {
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109 SDL_DelMouse(0);
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110 }
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111 }
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112
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113 /* Create a cursor from a surface */
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114 static SDL_Cursor *
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115 DirectFB_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
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116 {
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117 SDL_VideoDevice *dev = SDL_GetVideoDevice();
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118
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119 SDL_DFB_DEVICEDATA(dev);
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120 DFB_CursorData *curdata;
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121 DFBResult ret;
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122 DFBSurfaceDescription dsc;
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123 SDL_Cursor *cursor;
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124 Uint32 *dest;
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125 Uint32 *p;
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126 int pitch, i;
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127
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128 SDL_DFB_CALLOC(cursor, 1, sizeof(*cursor));
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129 SDL_DFB_CALLOC(curdata, 1, sizeof(*curdata));
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130
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131 dsc.flags =
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132 DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
2721
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133 dsc.caps = DSCAPS_VIDEOONLY;
2226
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134 dsc.width = surface->w;
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135 dsc.height = surface->h;
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136 dsc.pixelformat = DSPF_ARGB;
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137
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138 SDL_DFB_CHECKERR(devdata->dfb->
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139 CreateSurface(devdata->dfb, &dsc, &curdata->surf));
2226
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140 curdata->hotx = hot_x;
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141 curdata->hoty = hot_y;
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142 cursor->driverdata = curdata;
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143
2737
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144 SDL_DFB_CHECKERR(curdata->surf->
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145 Lock(curdata->surf, DSLF_WRITE, (void *) &dest, &pitch));
2226
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146
2737
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147 /* Relies on the fact that this is only called with ARGB surface. */
2226
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148 p = surface->pixels;
2737
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149 for (i = 0; i < surface->h; i++)
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150 memcpy((char *) dest + i * pitch, (char *) p + i * surface->pitch,
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151 4 * surface->w);
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152
2226
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153 curdata->surf->Unlock(curdata->surf);
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154 return cursor;
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155 error:
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156 return NULL;
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157 }
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158
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159 /* Show the specified cursor, or hide if cursor is NULL */
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160 static int
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161 DirectFB_ShowCursor(SDL_Cursor * cursor)
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162 {
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163 SDL_DFB_CURSORDATA(cursor);
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164 DFBResult ret;
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165 SDL_WindowID wid;
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166
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167 wid = SDL_GetFocusWindow();
2737
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168 if (wid < 0)
2226
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169 return -1;
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170 else {
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171 SDL_Window *window = SDL_GetWindowFromID(wid);
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172 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
2737
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173
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174 if (display) {
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175 DFB_DisplayData *dispdata =
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176 (DFB_DisplayData *) display->driverdata;
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177 DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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178
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179 if (cursor)
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180 SDL_DFB_CHECKERR(windata->window->
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181 SetCursorShape(windata->window,
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182 curdata->surf, curdata->hotx,
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183 curdata->hoty));
2259
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184
2737
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185 /* fprintf(stdout, "Cursor is %s\n", cursor ? "on" : "off"); */
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186 SDL_DFB_CHECKERR(dispdata->layer->
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187 SetCooperativeLevel(dispdata->layer,
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188 DLSCL_ADMINISTRATIVE));
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189 SDL_DFB_CHECKERR(dispdata->layer->
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190 SetCursorOpacity(dispdata->layer,
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191 cursor ? 0xC0 : 0x00));
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192 SDL_DFB_CHECKERR(dispdata->layer->
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193 SetCooperativeLevel(dispdata->layer,
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194 DLSCL_SHARED));
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195 }
2226
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196 }
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197
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198 return 0;
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diff changeset
199 error:
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200 return -1;
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
201 }
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diff changeset
202
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203 /* This is called when a mouse motion event occurs */
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204 static void
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diff changeset
205 DirectFB_MoveCursor(SDL_Cursor * cursor)
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206 {
2737
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diff changeset
207
2226
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208 }
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209
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diff changeset
210 /* Free a window manager cursor */
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
211 static void
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diff changeset
212 DirectFB_FreeCursor(SDL_Cursor * cursor)
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213 {
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diff changeset
214 SDL_DFB_CURSORDATA(cursor);
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215
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diff changeset
216 SDL_DFB_RELEASE(curdata->surf);
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217 SDL_DFB_FREE(cursor->driverdata);
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218 SDL_DFB_FREE(cursor);
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diff changeset
219 }
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diff changeset
220
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diff changeset
221 /* Warp the mouse to (x,y) */
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diff changeset
222 static void
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
223 DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_WindowID windowID, int x, int y)
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diff changeset
224 {
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
225 SDL_Window *window = SDL_GetWindowFromID(windowID);
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226 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
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diff changeset
227 DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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228 DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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229 DFBResult ret;
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
230 int cx, cy;
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
231
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
232 SDL_DFB_CHECKERR(windata->window->GetPosition(windata->window, &cx, &cy));
2737
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233 SDL_DFB_CHECKERR(dispdata->layer->
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diff changeset
234 WarpCursor(dispdata->layer, cx + x, cy + y));
2226
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diff changeset
235
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diff changeset
236 error:
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diff changeset
237 return;
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
238 }
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
239
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
240 /* Free the mouse when it's time */
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diff changeset
241 static void
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
242 DirectFB_FreeMouse(SDL_Mouse * mouse)
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diff changeset
243 {
2737
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diff changeset
244 /* nothing yet */
2226
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diff changeset
245 }
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
246
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
247 /* vi: set ts=4 sw=4 expandtab: */