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annotate src/video/directfb/SDL_DirectFB_mouse.c @ 4984:889e6fef8fc5

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Support the new 16-bit pixel formats in SDL_CreateTextureFromSurface()
author Sam Lantinga <slouken@libsdl.org>
date Wed, 12 Jan 2011 15:22:29 -0800
parents b196d2758026
children 164f20ba08eb
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 #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 #if USE_MULTI_API
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30 static SDL_Cursor *DirectFB_CreateCursor(SDL_Surface * surface,
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31 int hot_x, 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_Window * window,
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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 static int id_mask;
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40
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41 static DFBEnumerationResult
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42 EnumMice(DFBInputDeviceID device_id, DFBInputDeviceDescription desc,
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43 void *callbackdata)
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44 {
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45 DFB_DeviceData *devdata = callbackdata;
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46
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47 if ((desc.type & DIDTF_MOUSE) && (device_id & id_mask)) {
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48 SDL_Mouse mouse;
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49
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50 SDL_zero(mouse);
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51 mouse.id = device_id;
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52 mouse.CreateCursor = DirectFB_CreateCursor;
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53 mouse.ShowCursor = DirectFB_ShowCursor;
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54 mouse.MoveCursor = DirectFB_MoveCursor;
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55 mouse.FreeCursor = DirectFB_FreeCursor;
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56 mouse.WarpMouse = DirectFB_WarpMouse;
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57 mouse.FreeMouse = DirectFB_FreeMouse;
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58 mouse.cursor_shown = 1;
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59
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60 SDL_AddMouse(&mouse, desc.name, 0, 0, 1);
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61 devdata->mouse_id[devdata->num_mice++] = device_id;
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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 (devdata->use_linux_input) {
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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_AddMouse(&mouse, "Mouse", 0, 0, 1);
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95 devdata->num_mice = 1;
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96 }
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97 }
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98
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99 void
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100 DirectFB_QuitMouse(_THIS)
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101 {
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102 SDL_DFB_DEVICEDATA(_this);
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103
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104 if (devdata->use_linux_input) {
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105 SDL_MouseQuit();
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106 } else {
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107 SDL_DelMouse(0);
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108 }
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109 }
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110
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111 /* Create a cursor from a surface */
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112 static SDL_Cursor *
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113 DirectFB_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
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114 {
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115 SDL_VideoDevice *dev = SDL_GetVideoDevice();
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116
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117 SDL_DFB_DEVICEDATA(dev);
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118 DFB_CursorData *curdata;
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119 DFBResult ret;
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120 DFBSurfaceDescription dsc;
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121 SDL_Cursor *cursor;
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122 Uint32 *dest;
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123 Uint32 *p;
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124 int pitch, i;
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125
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126 SDL_DFB_CALLOC(cursor, 1, sizeof(*cursor));
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127 SDL_DFB_CALLOC(curdata, 1, sizeof(*curdata));
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128
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diff changeset
129 dsc.flags =
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130 DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
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131 dsc.caps = DSCAPS_VIDEOONLY;
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132 dsc.width = surface->w;
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133 dsc.height = surface->h;
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134 dsc.pixelformat = DSPF_ARGB;
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135
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136 SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc,
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137 &curdata->surf));
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138 curdata->hotx = hot_x;
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139 curdata->hoty = hot_y;
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140 cursor->driverdata = curdata;
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141
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142 SDL_DFB_CHECKERR(curdata->surf->Lock(curdata->surf, DSLF_WRITE,
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143 (void *) &dest, &pitch));
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144
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145 /* Relies on the fact that this is only called with ARGB surface. */
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146 p = surface->pixels;
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147 for (i = 0; i < surface->h; i++)
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148 memcpy((char *) dest + i * pitch,
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149 (char *) p + i * surface->pitch, 4 * surface->w);
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150
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151 curdata->surf->Unlock(curdata->surf);
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152 return cursor;
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153 error:
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154 return NULL;
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155 }
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diff changeset
156
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157 /* Show the specified cursor, or hide if cursor is NULL */
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158 static int
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159 DirectFB_ShowCursor(SDL_Cursor * cursor)
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160 {
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diff changeset
161 SDL_DFB_CURSORDATA(cursor);
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162 DFBResult ret;
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163 SDL_Window *window;
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164
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165 window = SDL_GetFocusWindow();
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166 if (!window)
2226
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167 return -1;
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168 else {
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169 SDL_VideoDisplay *display = window->display;
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170
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diff changeset
171 if (display) {
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172 DFB_DisplayData *dispdata =
140a7edcf2bd Date: Sun, 31 Aug 2008 17:53:59 +0200
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173 (DFB_DisplayData *) display->driverdata;
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174 DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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175
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176 if (cursor)
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177 SDL_DFB_CHECKERR(windata->window->
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178 SetCursorShape(windata->window,
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179 curdata->surf, curdata->hotx,
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180 curdata->hoty));
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181
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182 SDL_DFB_CHECKERR(dispdata->layer->
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183 SetCooperativeLevel(dispdata->layer,
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diff changeset
184 DLSCL_ADMINISTRATIVE));
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185 SDL_DFB_CHECKERR(dispdata->layer->
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186 SetCursorOpacity(dispdata->layer,
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187 cursor ? 0xC0 : 0x00));
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188 SDL_DFB_CHECKERR(dispdata->layer->
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189 SetCooperativeLevel(dispdata->layer,
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diff changeset
190 DLSCL_SHARED));
2737
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191 }
2226
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192 }
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diff changeset
193
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194 return 0;
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diff changeset
195 error:
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196 return -1;
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diff changeset
197 }
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diff changeset
198
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199 /* This is called when a mouse motion event occurs */
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diff changeset
200 static void
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diff changeset
201 DirectFB_MoveCursor(SDL_Cursor * cursor)
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diff changeset
202 {
2737
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diff changeset
203
2226
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diff changeset
204 }
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diff changeset
205
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diff changeset
206 /* Free a window manager cursor */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 static void
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diff changeset
208 DirectFB_FreeCursor(SDL_Cursor * cursor)
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parents:
diff changeset
209 {
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diff changeset
210 SDL_DFB_CURSORDATA(cursor);
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diff changeset
211
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diff changeset
212 SDL_DFB_RELEASE(curdata->surf);
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diff changeset
213 SDL_DFB_FREE(cursor->driverdata);
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diff changeset
214 SDL_DFB_FREE(cursor);
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parents:
diff changeset
215 }
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diff changeset
216
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diff changeset
217 /* Warp the mouse to (x,y) */
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diff changeset
218 static void
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parents: 3023
diff changeset
219 DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_Window * window, int x, int y)
2226
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diff changeset
220 {
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diff changeset
221 SDL_VideoDisplay *display = window->display;
2226
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diff changeset
222 DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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diff changeset
223 DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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diff changeset
224 DFBResult ret;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 int cx, cy;
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
226
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diff changeset
227 SDL_DFB_CHECKERR(windata->window->GetPosition(windata->window, &cx, &cy));
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228 SDL_DFB_CHECKERR(dispdata->layer->WarpCursor(dispdata->layer,
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diff changeset
229 cx + x + windata->client.x,
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diff changeset
230 cy + y + windata->client.y));
2226
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diff changeset
231
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parents:
diff changeset
232 error:
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diff changeset
233 return;
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diff changeset
234 }
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diff changeset
235
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diff changeset
236 /* Free the mouse when it's time */
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diff changeset
237 static void
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
238 DirectFB_FreeMouse(SDL_Mouse * mouse)
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parents:
diff changeset
239 {
2737
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diff changeset
240 /* nothing yet */
2226
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diff changeset
241 }
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diff changeset
242
4568
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diff changeset
243 #else /* USE_MULTI_API */
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diff changeset
244
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diff changeset
245 void
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diff changeset
246 DirectFB_InitMouse(_THIS)
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diff changeset
247 {
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diff changeset
248 SDL_DFB_DEVICEDATA(_this);
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diff changeset
249
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diff changeset
250 devdata->num_mice = 1;
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diff changeset
251 }
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diff changeset
252
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diff changeset
253 void
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diff changeset
254 DirectFB_QuitMouse(_THIS)
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diff changeset
255 {
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256 //SDL_DFB_DEVICEDATA(_this);
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257 }
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258
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259
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260 #endif
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261
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262 /* vi: set ts=4 sw=4 expandtab: */