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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 #include "SDL_gemvideo.h" |
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37 |
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38 /* Defines */ |
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39 |
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40 /*#define DEBUG_VIDEO_GEM 1*/ |
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41 |
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42 #define MAXCURWIDTH 16 |
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43 #define MAXCURHEIGHT 16 |
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44 |
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45 void GEM_FreeWMCursor(_THIS, WMcursor *cursor) |
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46 { |
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47 #ifdef DEBUG_VIDEO_GEM |
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48 printf("sdl:video:gem: free cursor\n"); |
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49 #endif |
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50 |
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51 if (cursor == NULL) |
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52 return; |
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53 |
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54 graf_mouse(ARROW, NULL); |
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55 |
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56 if (cursor->mform_p != NULL) |
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57 SDL_free(cursor->mform_p); |
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58 |
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59 SDL_free(cursor); |
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60 } |
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61 |
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62 WMcursor *GEM_CreateWMCursor(_THIS, |
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63 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) |
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64 { |
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65 WMcursor *cursor; |
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66 MFORM *new_mform; |
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67 int i; |
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68 |
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69 #ifdef DEBUG_VIDEO_GEM |
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70 Uint16 *data1, *mask1; |
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71 |
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72 printf("sdl:video:gem: create cursor\n"); |
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73 #endif |
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74 |
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75 /* Check the size */ |
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76 if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) { |
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77 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", |
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78 MAXCURWIDTH, MAXCURHEIGHT); |
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79 return(NULL); |
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80 } |
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81 |
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82 /* Allocate the cursor memory */ |
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83 cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor)); |
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84 if ( cursor == NULL ) { |
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85 SDL_OutOfMemory(); |
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86 return(NULL); |
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87 } |
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88 |
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89 /* Allocate mform */ |
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90 new_mform = (MFORM *)SDL_malloc(sizeof(MFORM)); |
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91 if (new_mform == NULL) { |
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92 SDL_free(cursor); |
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93 SDL_OutOfMemory(); |
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94 return(NULL); |
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95 } |
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96 |
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97 cursor->mform_p = new_mform; |
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98 |
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99 new_mform->mf_xhot = hot_x; |
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100 new_mform->mf_yhot = hot_y; |
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101 new_mform->mf_nplanes = 1; |
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102 new_mform->mf_fg = 0; |
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103 new_mform->mf_bg = 1; |
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104 |
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105 for (i=0;i<MAXCURHEIGHT;i++) { |
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106 new_mform->mf_mask[i]=0; |
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107 new_mform->mf_data[i]=0; |
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108 #ifdef DEBUG_VIDEO_GEM |
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109 data1 = (Uint16 *) &data[i<<1]; |
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110 mask1 = (Uint16 *) &mask[i<<1]; |
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111 printf("sdl:video:gem: source: line %d: data=0x%04x, mask=0x%04x\n", |
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112 i, data1[i], mask1[i]); |
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113 #endif |
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114 } |
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115 |
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116 if (w<=8) { |
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117 for (i=0;i<h;i++) { |
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118 new_mform->mf_mask[i]= mask[i]<<8; |
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119 new_mform->mf_data[i]= data[i]<<8; |
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120 } |
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121 } else { |
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122 for (i=0;i<h;i++) { |
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123 new_mform->mf_mask[i]= (mask[i<<1]<<8) | mask[(i<<1)+1]; |
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124 new_mform->mf_data[i]= (data[i<<1]<<8) | data[(i<<1)+1]; |
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125 } |
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126 } |
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127 |
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128 #ifdef DEBUG_VIDEO_GEM |
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129 for (i=0; i<h ;i++) { |
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130 printf("sdl:video:gem: cursor: line %d: data=0x%04x, mask=0x%04x\n", |
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131 i, new_mform->mf_data[i], new_mform->mf_mask[i]); |
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132 } |
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133 |
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134 printf("sdl:video:gem: CreateWMCursor(): done\n"); |
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135 #endif |
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136 |
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137 return cursor; |
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138 } |
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139 |
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140 int GEM_ShowWMCursor(_THIS, WMcursor *cursor) |
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141 { |
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142 GEM_cursor = cursor; |
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143 |
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144 GEM_CheckMouseMode(this); |
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145 |
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146 #ifdef DEBUG_VIDEO_GEM |
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147 printf("sdl:video:gem: ShowWMCursor(0x%08x)\n", (long) cursor); |
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148 #endif |
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149 |
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150 return 1; |
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151 } |
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152 |
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153 #if 0 |
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154 void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y) |
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155 { |
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156 /* This seems to work only on AES 3.4 (Falcon) */ |
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157 |
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158 EVNTREC warpevent; |
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159 |
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160 warpevent.ap_event = APPEVNT_MOUSE; |
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161 warpevent.ap_value = (x << 16) | y; |
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162 |
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163 appl_tplay(&warpevent, 1, 1000); |
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164 } |
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165 #endif |
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166 |
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167 void GEM_CheckMouseMode(_THIS) |
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168 { |
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169 const Uint8 full_focus = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS); |
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170 int set_system_cursor = 1, show_system_cursor = 1; |
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171 |
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172 #ifdef DEBUG_VIDEO_GEM |
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173 printf("sdl:video:gem: check mouse mode\n"); |
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174 #endif |
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175 |
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176 /* If the mouse is hidden and input is grabbed, we use relative mode */ |
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177 GEM_mouse_relative = (!(SDL_cursorstate & CURSOR_VISIBLE)) |
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178 && (this->input_grab != SDL_GRAB_OFF) |
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179 && (SDL_GetAppState() & SDL_APPACTIVE); |
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180 SDL_AtariXbios_LockMousePosition(GEM_mouse_relative); |
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181 |
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182 if (SDL_cursorstate & CURSOR_VISIBLE) { |
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183 /* Application defined cursor only over the application window */ |
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184 if ((SDL_GetAppState() & full_focus) == full_focus) { |
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185 if (GEM_cursor) { |
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186 graf_mouse(USER_DEF, GEM_cursor->mform_p); |
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187 set_system_cursor = 0; |
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188 } else { |
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189 show_system_cursor = 0; |
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190 } |
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191 } |
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192 } else { |
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193 /* Mouse cursor hidden only over the application window */ |
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194 if ((SDL_GetAppState() & full_focus) == full_focus) { |
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195 set_system_cursor = 0; |
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196 show_system_cursor = 0; |
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197 } |
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198 } |
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199 |
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200 graf_mouse(show_system_cursor ? M_ON : M_OFF, NULL); |
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201 if (set_system_cursor) { |
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202 graf_mouse(ARROW, NULL); |
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203 } |
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204 } |