Mercurial > sdl-ios-xcode

annotate src/video/gem/SDL_gemmouse.c @ 1795:398ac0f88e4d

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Fixed bug #220 The AltiVec blitters don't compile, since they require __VEC__ to be enabled in order for the compiler to understand "vector" and friends (i.e. do AltiVec) But you don't want to turn AltiVec on globally, since then the code would only run on a G4 (there are already runtime tests, before using the AltiVec variants) The solution here is to enable AltiVec locally, for the actual AltiVec code.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 09 May 2006 15:09:47 +0000
parents d910939febfa
children 782fd950bd46 417f2af2bd52
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 /*
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25 * GEM Mouse manager
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26 *
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27 * Patrice Mandin
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28 */
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29
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30 #include <gem.h>
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31
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32 #include "SDL_mouse.h"
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33 #include "../../events/SDL_events_c.h"
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34 #include "../SDL_cursor_c.h"
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35 #include "SDL_gemmouse_c.h"
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36
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37 /* Defines */
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38
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39 /*#define DEBUG_VIDEO_GEM 1*/
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40
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41 #define MAXCURWIDTH 16
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42 #define MAXCURHEIGHT 16
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43
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44 /* The implementation dependent data for the window manager cursor */
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45 struct WMcursor {
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46 MFORM *mform_p;
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47 };
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48
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49
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50 void GEM_FreeWMCursor(_THIS, WMcursor *cursor)
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51 {
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52 if (cursor == NULL)
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53 return;
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54
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55 graf_mouse(ARROW, NULL);
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56
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57 if (cursor->mform_p != NULL)
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58 SDL_free(cursor->mform_p);
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59
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60 SDL_free(cursor);
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61 }
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62
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63 WMcursor *GEM_CreateWMCursor(_THIS,
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64 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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65 {
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66 WMcursor *cursor;
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67 MFORM *new_mform;
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68 int i;
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69
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70 /* Check the size */
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71 if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) {
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72 SDL_SetError("Only cursors of dimension (%dx%d) are allowed",
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73 MAXCURWIDTH, MAXCURHEIGHT);
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74 return(NULL);
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75 }
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76
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77 /* Allocate the cursor memory */
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78 cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor));
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79 if ( cursor == NULL ) {
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80 SDL_OutOfMemory();
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81 return(NULL);
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82 }
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83
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84 /* Allocate mform */
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85 new_mform = (MFORM *)SDL_malloc(sizeof(MFORM));
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86 if (new_mform == NULL) {
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87 SDL_free(cursor);
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88 SDL_OutOfMemory();
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89 return(NULL);
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90 }
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91
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92 cursor->mform_p = new_mform;
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93
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94 new_mform->mf_xhot = hot_x;
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95 new_mform->mf_yhot = hot_y;
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96 new_mform->mf_nplanes = 1;
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97 new_mform->mf_fg = 0;
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98 new_mform->mf_bg = 1;
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99
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100 for (i=0;i<MAXCURHEIGHT;i++) {
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101 new_mform->mf_mask[i]=0;
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102 new_mform->mf_data[i]=0;
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103 }
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104
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105 if (w<=8) {
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106 for (i=0;i<h;i++) {
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107 new_mform->mf_mask[i]= mask[i]<<8;
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108 new_mform->mf_data[i]= data[i]<<8;
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109 }
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110 } else {
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111 for (i=0;i<h;i++) {
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112 new_mform->mf_mask[i]= mask[i<<1]<<8 | mask[(i<<1)+1];
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113 new_mform->mf_data[i]= data[i<<1]<<8 | data[(i<<1)+1];
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114 }
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115 }
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116
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117 #ifdef DEBUG_VIDEO_GEM
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118 for (i=0; i<h ;i++) {
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119 printf("sdl:video:gem: cursor, line %d = 0x%04x\n", i, new_mform->mf_mask[i]);
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120 }
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121
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122 printf("sdl:video:gem: CreateWMCursor(): done\n");
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123 #endif
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124
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125 return cursor;
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126 }
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127
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128 int GEM_ShowWMCursor(_THIS, WMcursor *cursor)
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129 {
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130 /*
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131 if (cursor == NULL) {
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132 graf_mouse(M_OFF, NULL);
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133 } else if (cursor->mform_p) {
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134 graf_mouse(USER_DEF, cursor->mform_p);
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135 }
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136 */
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137 #ifdef DEBUG_VIDEO_GEM
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138 printf("sdl:video:gem: ShowWMCursor(0x%08x)\n", (long) cursor);
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139 #endif
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140
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141 return 1;
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142 }
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143
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144 #if 0
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145 void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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146 {
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147 /* This seems to work only on AES 3.4 (Falcon) */
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148
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149 EVNTREC warpevent;
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150
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151 warpevent.ap_event = APPEVNT_MOUSE;
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152 warpevent.ap_value = (x << 16) | y;
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153
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154 appl_tplay(&warpevent, 1, 1000);
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155 }
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156 #endif
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157
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158 void GEM_CheckMouseMode(_THIS)
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159 {
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160 /* If the mouse is hidden and input is grabbed, we use relative mode */
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161 if ( (!(SDL_cursorstate & CURSOR_VISIBLE)) &&
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162 /*(this->input_grab != SDL_GRAB_OFF) && */ /* Damn GEM can not grab */
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163 (SDL_GetAppState() & SDL_APPACTIVE) ) {
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164 GEM_mouse_relative = SDL_TRUE;
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165 } else {
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166 GEM_mouse_relative = SDL_FALSE;
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167 }
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168 }