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annotate src/video/directfb/SDL_DirectFB_mouse.c @ 5225:1fbe1c202501

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Renamed SDL_Key to SDL_Keycode to clarify terminology.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 07 Feb 2011 10:40:21 -0800
parents 164f20ba08eb
children 58265e606e4e
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
164f20ba08eb Updated the DirectFB support, from Couriersud
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22 SDL1.3 DirectFB driver by couriersud@arcor.de
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23
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24 */
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25
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26 #include "SDL_config.h"
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27
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28 #include "SDL_DirectFB_video.h"
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29
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30 #include "../SDL_sysvideo.h"
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31 #include "../../events/SDL_mouse_c.h"
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32
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33 #if USE_MULTI_API
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34 static SDL_Cursor *DirectFB_CreateCursor(SDL_Surface * surface,
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35 int hot_x, int hot_y);
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36 static int DirectFB_ShowCursor(SDL_Cursor * cursor);
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37 static void DirectFB_MoveCursor(SDL_Cursor * cursor);
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38 static void DirectFB_FreeCursor(SDL_Cursor * cursor);
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39 static void DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_Window * window,
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40 int x, int y);
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41 static void DirectFB_FreeMouse(SDL_Mouse * mouse);
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42
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43 static int id_mask;
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44
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45 static DFBEnumerationResult
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46 EnumMice(DFBInputDeviceID device_id, DFBInputDeviceDescription desc,
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47 void *callbackdata)
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48 {
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49 DFB_DeviceData *devdata = callbackdata;
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50
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51 if ((desc.type & DIDTF_MOUSE) && (device_id & id_mask)) {
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52 SDL_Mouse mouse;
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53
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54 SDL_zero(mouse);
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55 mouse.id = device_id;
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56 mouse.CreateCursor = DirectFB_CreateCursor;
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57 mouse.ShowCursor = DirectFB_ShowCursor;
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58 mouse.MoveCursor = DirectFB_MoveCursor;
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59 mouse.FreeCursor = DirectFB_FreeCursor;
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60 mouse.WarpMouse = DirectFB_WarpMouse;
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61 mouse.FreeMouse = DirectFB_FreeMouse;
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62 mouse.cursor_shown = 1;
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63
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64 SDL_AddMouse(&mouse, desc.name, 0, 0, 1);
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65 devdata->mouse_id[devdata->num_mice++] = device_id;
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66 }
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67 return DFENUM_OK;
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68 }
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69
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70 void
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71 DirectFB_InitMouse(_THIS)
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72 {
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73 SDL_DFB_DEVICEDATA(_this);
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74
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75 devdata->num_mice = 0;
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76 if (devdata->use_linux_input) {
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77 /* try non-core devices first */
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78 id_mask = 0xF0;
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79 devdata->dfb->EnumInputDevices(devdata->dfb, EnumMice, devdata);
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80 if (devdata->num_mice == 0) {
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81 /* try core devices */
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82 id_mask = 0x0F;
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83 devdata->dfb->EnumInputDevices(devdata->dfb, EnumMice, devdata);
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84 }
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85 }
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86 if (devdata->num_mice == 0) {
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87 SDL_Mouse mouse;
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88
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89 SDL_zero(mouse);
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90 mouse.CreateCursor = DirectFB_CreateCursor;
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91 mouse.ShowCursor = DirectFB_ShowCursor;
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92 mouse.MoveCursor = DirectFB_MoveCursor;
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93 mouse.FreeCursor = DirectFB_FreeCursor;
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94 mouse.WarpMouse = DirectFB_WarpMouse;
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95 mouse.FreeMouse = DirectFB_FreeMouse;
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96 mouse.cursor_shown = 1;
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97
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98 SDL_AddMouse(&mouse, "Mouse", 0, 0, 1);
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99 devdata->num_mice = 1;
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100 }
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101 }
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102
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103 void
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104 DirectFB_QuitMouse(_THIS)
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105 {
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106 SDL_DFB_DEVICEDATA(_this);
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107
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108 if (devdata->use_linux_input) {
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109 SDL_MouseQuit();
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110 } else {
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111 SDL_DelMouse(0);
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112 }
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113 }
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114
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115 /* Create a cursor from a surface */
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116 static SDL_Cursor *
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117 DirectFB_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
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118 {
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119 SDL_VideoDevice *dev = SDL_GetVideoDevice();
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120
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121 SDL_DFB_DEVICEDATA(dev);
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122 DFB_CursorData *curdata;
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123 DFBResult ret;
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124 DFBSurfaceDescription dsc;
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125 SDL_Cursor *cursor;
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126 Uint32 *dest;
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127 Uint32 *p;
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diff changeset
128 int pitch, i;
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129
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130 SDL_DFB_ALLOC_CLEAR(cursor, 1, sizeof(*cursor));
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131 SDL_DFB_ALLOC_CLEAR(curdata, 1, sizeof(*curdata));
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132
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133 dsc.flags =
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134 DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
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135 dsc.caps = DSCAPS_VIDEOONLY;
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136 dsc.width = surface->w;
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137 dsc.height = surface->h;
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138 dsc.pixelformat = DSPF_ARGB;
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139
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140 SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc,
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141 &curdata->surf));
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142 curdata->hotx = hot_x;
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143 curdata->hoty = hot_y;
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144 cursor->driverdata = curdata;
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145
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146 SDL_DFB_CHECKERR(curdata->surf->Lock(curdata->surf, DSLF_WRITE,
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147 (void *) &dest, &pitch));
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148
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149 /* Relies on the fact that this is only called with ARGB surface. */
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150 p = surface->pixels;
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151 for (i = 0; i < surface->h; i++)
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152 memcpy((char *) dest + i * pitch,
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153 (char *) p + i * surface->pitch, 4 * surface->w);
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154
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155 curdata->surf->Unlock(curdata->surf);
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156 return cursor;
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157 error:
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158 return NULL;
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159 }
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160
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diff changeset
161 /* Show the specified cursor, or hide if cursor is NULL */
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162 static int
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163 DirectFB_ShowCursor(SDL_Cursor * cursor)
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164 {
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165 SDL_DFB_CURSORDATA(cursor);
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166 DFBResult ret;
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167 SDL_Window *window;
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168
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169 window = SDL_GetFocusWindow();
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170 if (!window)
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171 return -1;
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172 else {
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173 SDL_VideoDisplay *display = window->display;
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174
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175 if (display) {
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176 DFB_DisplayData *dispdata =
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177 (DFB_DisplayData *) display->driverdata;
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178 DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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179
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180 if (cursor)
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181 SDL_DFB_CHECKERR(windata->window->
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182 SetCursorShape(windata->dfbwin,
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183 curdata->surf, curdata->hotx,
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184 curdata->hoty));
2259
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185
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186 SDL_DFB_CHECKERR(dispdata->layer->
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187 SetCooperativeLevel(dispdata->layer,
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diff changeset
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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diff changeset
191 cursor ? 0xC0 : 0x00));
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diff changeset
192 SDL_DFB_CHECKERR(dispdata->layer->
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193 SetCooperativeLevel(dispdata->layer,
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diff changeset
194 DLSCL_SHARED));
2737
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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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diff changeset
200 return -1;
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diff changeset
201 }
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diff changeset
202
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diff changeset
203 /* This is called when a mouse motion event occurs */
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diff changeset
204 static void
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diff changeset
205 DirectFB_MoveCursor(SDL_Cursor * cursor)
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diff changeset
206 {
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diff changeset
207
2226
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diff changeset
208 }
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diff changeset
209
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diff changeset
210 /* Free a window manager cursor */
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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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diff changeset
213 {
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diff changeset
214 SDL_DFB_CURSORDATA(cursor);
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diff changeset
215
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diff changeset
216 SDL_DFB_RELEASE(curdata->surf);
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diff changeset
217 SDL_DFB_FREE(cursor->driverdata);
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diff changeset
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
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parents: 3023
diff changeset
223 DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_Window * window, int x, int y)
2226
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diff changeset
224 {
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diff changeset
225 SDL_VideoDisplay *display = window->display;
2226
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diff changeset
226 DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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diff changeset
227 DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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diff changeset
228 DFBResult ret;
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diff changeset
229 int cx, cy;
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diff changeset
230
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diff changeset
231 SDL_DFB_CHECKERR(windata->dfbwin->GetPosition(windata->dfbwin, &cx, &cy));
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diff changeset
232 SDL_DFB_CHECKERR(dispdata->layer->WarpCursor(dispdata->layer,
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diff changeset
233 cx + x + windata->client.x,
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diff changeset
234 cy + y + windata->client.y));
2226
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diff changeset
235
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parents:
diff changeset
236 error:
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parents:
diff changeset
237 return;
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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diff changeset
238 }
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diff changeset
239
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diff changeset
240 /* Free the mouse when it's time */
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parents:
diff changeset
241 static void
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diff changeset
242 DirectFB_FreeMouse(SDL_Mouse * mouse)
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parents:
diff changeset
243 {
2737
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diff changeset
244 /* nothing yet */
2226
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diff changeset
245 }
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diff changeset
246
4568
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parents: 3697
diff changeset
247 #else /* USE_MULTI_API */
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diff changeset
248
25b9cd8bdc30 Couriersud to Sam
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diff changeset
249 void
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diff changeset
250 DirectFB_InitMouse(_THIS)
25b9cd8bdc30 Couriersud to Sam
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
251 {
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diff changeset
252 SDL_DFB_DEVICEDATA(_this);
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diff changeset
253
25b9cd8bdc30 Couriersud to Sam
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diff changeset
254 devdata->num_mice = 1;
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255 }
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256
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257 void
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258 DirectFB_QuitMouse(_THIS)
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259 {
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260 }
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261
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262
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263 #endif
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264
2226
0e70b4b8cf84 Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
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265 /* vi: set ts=4 sw=4 expandtab: */