Mercurial > sdl-ios-xcode
annotate src/video/gem/SDL_gemmouse.c @ 769:b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 04 Jan 2004 16:49:27 +0000 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2004 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 Library General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2 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 Library 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 Library General Public |
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16 License along with this library; if not, write to the Free |
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 |
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23 #ifdef SAVE_RCSID |
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24 static char rcsid = |
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25 "@(#) $Id$"; |
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26 #endif |
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27 |
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28 /* |
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29 * GEM Mouse manager |
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30 * |
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31 * Patrice Mandin |
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32 */ |
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33 |
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34 #include <stdlib.h> |
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35 |
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36 #include <gem.h> |
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37 |
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38 #include "SDL_error.h" |
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39 #include "SDL_mouse.h" |
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40 #include "SDL_events_c.h" |
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41 #include "SDL_cursor_c.h" |
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42 #include "SDL_gemmouse_c.h" |
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43 |
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44 /* Defines */ |
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45 |
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46 /*#define DEBUG_VIDEO_GEM 1*/ |
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47 |
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48 #define MAXCURWIDTH 16 |
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49 #define MAXCURHEIGHT 16 |
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50 |
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51 /* The implementation dependent data for the window manager cursor */ |
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52 struct WMcursor { |
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53 MFORM *mform_p; |
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54 }; |
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55 |
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56 |
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57 void GEM_FreeWMCursor(_THIS, WMcursor *cursor) |
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58 { |
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59 if (cursor == NULL) |
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60 return; |
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61 |
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62 graf_mouse(ARROW, NULL); |
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63 |
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64 if (cursor->mform_p != NULL) |
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65 free(cursor->mform_p); |
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66 |
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67 free(cursor); |
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68 } |
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69 |
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70 WMcursor *GEM_CreateWMCursor(_THIS, |
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71 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) |
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72 { |
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73 WMcursor *cursor; |
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74 MFORM *new_mform; |
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75 int i; |
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76 |
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77 /* Check the size */ |
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78 if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) { |
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79 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", |
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80 MAXCURWIDTH, MAXCURHEIGHT); |
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81 return(NULL); |
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82 } |
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83 |
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84 /* Allocate the cursor memory */ |
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85 cursor = (WMcursor *)malloc(sizeof(WMcursor)); |
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86 if ( cursor == NULL ) { |
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87 SDL_OutOfMemory(); |
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88 return(NULL); |
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89 } |
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90 |
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91 /* Allocate mform */ |
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92 new_mform = (MFORM *)malloc(sizeof(MFORM)); |
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93 if (new_mform == NULL) { |
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94 free(cursor); |
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95 SDL_OutOfMemory(); |
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96 return(NULL); |
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97 } |
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98 |
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99 cursor->mform_p = new_mform; |
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100 |
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101 new_mform->mf_xhot = hot_x; |
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102 new_mform->mf_yhot = hot_y; |
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103 new_mform->mf_nplanes = 1; |
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104 new_mform->mf_fg = 0; |
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105 new_mform->mf_bg = 1; |
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106 |
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107 for (i=0;i<MAXCURHEIGHT;i++) { |
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108 new_mform->mf_mask[i]=0; |
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109 new_mform->mf_data[i]=0; |
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110 } |
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111 |
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112 if (w<=8) { |
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113 for (i=0;i<h;i++) { |
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114 new_mform->mf_mask[i]= mask[i]<<8; |
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115 new_mform->mf_data[i]= data[i]<<8; |
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116 } |
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117 } else { |
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118 for (i=0;i<h;i++) { |
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119 new_mform->mf_mask[i]= mask[i<<1]<<8 | mask[(i<<1)+1]; |
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120 new_mform->mf_data[i]= data[i<<1]<<8 | data[(i<<1)+1]; |
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121 } |
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122 } |
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123 |
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124 #ifdef DEBUG_VIDEO_GEM |
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125 for (i=0; i<h ;i++) { |
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126 printf("sdl:video:gem: cursor, line %d = 0x%04x\n", i, new_mform->mf_mask[i]); |
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127 } |
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128 |
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129 printf("sdl:video:gem: CreateWMCursor(): done\n"); |
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130 #endif |
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131 |
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132 return cursor; |
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133 } |
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134 |
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135 int GEM_ShowWMCursor(_THIS, WMcursor *cursor) |
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136 { |
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137 /* |
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138 if (cursor == NULL) { |
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139 graf_mouse(M_OFF, NULL); |
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140 } else if (cursor->mform_p) { |
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141 graf_mouse(USER_DEF, cursor->mform_p); |
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142 } |
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143 */ |
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144 #ifdef DEBUG_VIDEO_GEM |
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145 printf("sdl:video:gem: ShowWMCursor(0x%08x)\n", (long) cursor); |
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146 #endif |
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147 |
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148 return 1; |
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149 } |
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150 |
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151 #if 0 |
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152 void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y) |
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153 { |
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154 /* This seems to work only on AES 3.4 (Falcon) */ |
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155 |
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156 EVNTREC warpevent; |
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157 |
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158 warpevent.ap_event = APPEVNT_MOUSE; |
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159 warpevent.ap_value = (x << 16) | y; |
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160 |
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161 appl_tplay(&warpevent, 1, 1000); |
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162 } |
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163 #endif |
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164 |
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165 void GEM_CheckMouseMode(_THIS) |
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166 { |
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167 /* If the mouse is hidden and input is grabbed, we use relative mode */ |
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168 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && |
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169 (this->input_grab != SDL_GRAB_OFF) && |
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170 (SDL_GetAppState() & SDL_APPACTIVE) ) { |
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171 GEM_mouse_relative = SDL_TRUE; |
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172 } else { |
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173 GEM_mouse_relative = SDL_FALSE; |
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174 } |
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175 } |