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