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annotate src/video/x11/SDL_x11mouse.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 3e69e077cb95
rev   line source
1950
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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
a344e42bce3b Started work on the new X11 driver.
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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 #include "SDL_x11video.h"
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24 #include "SDL_x11mouse.h"
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25 #include "../../events/SDL_mouse_c.h"
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26
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27 #if SDL_VIDEO_DRIVER_X11_XINPUT
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28 static void
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29 X11_FreeMouse(SDL_Mouse * mouse)
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30 {
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31 X11_MouseData *data = (X11_MouseData *) mouse->driverdata;
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32
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33 if (data) {
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34 XCloseDevice(data->display, data->device);
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35 SDL_free(data);
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36 }
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37 }
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38 #endif
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39
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40 void
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41 X11_InitMouse(_THIS)
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42 {
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43 SDL_Mouse mouse;
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44 #if SDL_VIDEO_DRIVER_X11_XINPUT
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45 Display *display = ((SDL_VideoData *) _this->driverdata)->display;
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46 X11_MouseData *data;
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47 int i, j, n;
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48 XDeviceInfo *DevList;
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49 XAnyClassPtr deviceClass;
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50 int event_code;
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51 XEventClass xEvent;
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52 #endif
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53 int num_mice = 0;
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54
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55 SDL_zero(mouse);
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56
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57 #if SDL_VIDEO_DRIVER_X11_XINPUT
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58 /* we're getting the list of input devices */
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59 n = 0;
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60 if (SDL_X11_HAVE_XINPUT) {
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61 DevList = XListInputDevices(display, &n);
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62 }
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63
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64 /* we're aquiring valuators: mice, tablets, etc. */
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65 for (i = 0; i < n; ++i) {
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66 /* if it's the core pointer or core keyborard we don't want it */
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67 if ((DevList[i].use != IsXPointer && DevList[i].use != IsXKeyboard)) {
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68 /* we have to check all of the device classes */
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69 deviceClass = DevList[i].inputclassinfo;
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70 for (j = 0; j < DevList[i].num_classes; ++j) {
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71 if (deviceClass->class == ValuatorClass) { /* bingo ;) */
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72 XValuatorInfo *valInfo;
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73
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74 data = (X11_MouseData *) SDL_calloc(1, sizeof(*data));
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75 if (!data) {
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76 continue;
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77 }
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78 data->display = display;
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79 data->device = XOpenDevice(display, DevList[i].id);
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80
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81 /* motion events */
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82 DeviceMotionNotify(data->device, event_code, xEvent);
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83 if (xEvent) {
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84 data->xevents[data->num_xevents++] = xEvent;
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85 data->motion = event_code;
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86 }
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87
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88 /* button events */
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89 DeviceButtonPress(data->device, event_code, xEvent);
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90 if (xEvent) {
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91 data->xevents[data->num_xevents++] = xEvent;
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92 data->button_pressed = event_code;
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93 }
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94 DeviceButtonRelease(data->device, event_code, xEvent);
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95 if (xEvent) {
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96 data->xevents[data->num_xevents++] = xEvent;
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97 data->button_released = event_code;
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98 }
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99
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100 /* proximity events */
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101 ProximityIn(data->device, event_code, xEvent);
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102 if (xEvent) {
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103 data->xevents[data->num_xevents++] = xEvent;
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104 data->proximity_in = event_code;
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105 }
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106 ProximityOut(data->device, event_code, xEvent);
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107 if (xEvent) {
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108 data->xevents[data->num_xevents++] = xEvent;
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109 data->proximity_out = event_code;
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110 }
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111
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112 SDL_zero(mouse);
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113 mouse.id = DevList[i].id;
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114 mouse.FreeMouse = X11_FreeMouse;
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115 mouse.driverdata = data;
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116
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117 /* lets get the device parameters */
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118 valInfo = (XValuatorInfo *) deviceClass;
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119 /* if the device reports pressure, lets check it parameteres */
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120 if (valInfo->num_axes > 2) {
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121 SDL_AddMouse(&mouse, DevList[i].name,
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122 valInfo->axes[2].max_value,
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123 valInfo->axes[2].min_value, 1);
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124 } else {
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125 SDL_AddMouse(&mouse, DevList[i].name, 0, 0, 1);
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126 }
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127 #ifndef IsXExtensionPointer
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128 #define IsXExtensionPointer 4
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129 #endif
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130 if (DevList[i].use == IsXExtensionPointer) {
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131 ++num_mice;
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132 }
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133 break;
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134 }
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135 /* if it's not class we're interested in, lets go further */
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136 deviceClass =
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137 (XAnyClassPtr) ((char *) deviceClass +
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138 deviceClass->length);
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139 }
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140 }
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141 }
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142 XFreeDeviceList(DevList);
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143 #endif
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144
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145 if (num_mice == 0) {
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146 SDL_zero(mouse);
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147 SDL_AddMouse(&mouse, "CorePointer", 0, 0, 1);
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148 }
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149 }
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150
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151 void
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152 X11_QuitMouse(_THIS)
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153 {
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154 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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155
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156 /* !!! FIXME: use XCloseDevice()? Or maybe handle under SDL_MouseQuit()? */
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157
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158 /* let's delete all of the mice */
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159 SDL_MouseQuit();
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160 }
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161
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162 /* vi: set ts=4 sw=4 expandtab: */