1 /* 2 SDL - Simple DirectMedia Layer 3 Copyright (C) 1997-2006 Sam Lantinga 4 5 This library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 This library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with this library; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 19 Sam Lantinga 20 slouken (at) libsdl.org 21 */ 22 #include "SDL_config.h" 23 24 /* 25 * GEM Mouse manager 26 * 27 * Patrice Mandin 28 */ 29 30 #include <gem.h> 31 32 #include "SDL_mouse.h" 33 #include "../../events/SDL_events_c.h" 34 #include "../SDL_cursor_c.h" 35 #include "SDL_gemmouse_c.h" 36 #include "SDL_gemvideo.h" 37 38 /* Defines */ 39 40 /*#define DEBUG_VIDEO_GEM 1*/ 41 42 #define MAXCURWIDTH 16 43 #define MAXCURHEIGHT 16 44 45 void GEM_FreeWMCursor(_THIS, WMcursor *cursor) 46 { 47 #ifdef DEBUG_VIDEO_GEM 48 printf("sdl:video:gem: free cursor\n"); 49 #endif 50 51 if (cursor == NULL) 52 return; 53 54 graf_mouse(ARROW, NULL); 55 56 if (cursor->mform_p != NULL) 57 SDL_free(cursor->mform_p); 58 59 SDL_free(cursor); 60 } 61 62 WMcursor *GEM_CreateWMCursor(_THIS, 63 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) 64 { 65 WMcursor *cursor; 66 MFORM *new_mform; 67 int i; 68 69 #ifdef DEBUG_VIDEO_GEM 70 Uint16 *data1, *mask1; 71 72 printf("sdl:video:gem: create cursor\n"); 73 #endif 74 75 /* Check the size */ 76 if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) { 77 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", 78 MAXCURWIDTH, MAXCURHEIGHT); 79 return(NULL); 80 } 81 82 /* Allocate the cursor memory */ 83 cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor)); 84 if ( cursor == NULL ) { 85 SDL_OutOfMemory(); 86 return(NULL); 87 } 88 89 /* Allocate mform */ 90 new_mform = (MFORM *)SDL_malloc(sizeof(MFORM)); 91 if (new_mform == NULL) { 92 SDL_free(cursor); 93 SDL_OutOfMemory(); 94 return(NULL); 95 } 96 97 cursor->mform_p = new_mform; 98 99 new_mform->mf_xhot = hot_x; 100 new_mform->mf_yhot = hot_y; 101 new_mform->mf_nplanes = 1; 102 new_mform->mf_fg = 0; 103 new_mform->mf_bg = 1; 104 105 for (i=0;i<MAXCURHEIGHT;i++) { 106 new_mform->mf_mask[i]=0; 107 new_mform->mf_data[i]=0; 108 #ifdef DEBUG_VIDEO_GEM 109 data1 = (Uint16 *) &data[i<<1]; 110 mask1 = (Uint16 *) &mask[i<<1]; 111 printf("sdl:video:gem: source: line %d: data=0x%04x, mask=0x%04x\n", 112 i, data1[i], mask1[i]); 113 #endif 114 } 115 116 if (w<=8) { 117 for (i=0;i<h;i++) { 118 new_mform->mf_mask[i]= mask[i]<<8; 119 new_mform->mf_data[i]= data[i]<<8; 120 } 121 } else { 122 for (i=0;i<h;i++) { 123 new_mform->mf_mask[i]= (mask[i<<1]<<8) | mask[(i<<1)+1]; 124 new_mform->mf_data[i]= (data[i<<1]<<8) | data[(i<<1)+1]; 125 } 126 } 127 128 #ifdef DEBUG_VIDEO_GEM 129 for (i=0; i<h ;i++) { 130 printf("sdl:video:gem: cursor: line %d: data=0x%04x, mask=0x%04x\n", 131 i, new_mform->mf_data[i], new_mform->mf_mask[i]); 132 } 133 134 printf("sdl:video:gem: CreateWMCursor(): done\n"); 135 #endif 136 137 return cursor; 138 } 139 140 int GEM_ShowWMCursor(_THIS, WMcursor *cursor) 141 { 142 GEM_cursor = cursor; 143 144 GEM_CheckMouseMode(this); 145 146 #ifdef DEBUG_VIDEO_GEM 147 printf("sdl:video:gem: ShowWMCursor(0x%08x)\n", (long) cursor); 148 #endif 149 150 return 1; 151 } 152 153 #if 0 154 void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y) 155 { 156 /* This seems to work only on AES 3.4 (Falcon) */ 157 158 EVNTREC warpevent; 159 160 warpevent.ap_event = APPEVNT_MOUSE; 161 warpevent.ap_value = (x << 16) | y; 162 163 appl_tplay(&warpevent, 1, 1000); 164 } 165 #endif 166 167 void GEM_CheckMouseMode(_THIS) 168 { 169 const Uint8 full_focus = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS); 170 int set_system_cursor = 1, show_system_cursor = 1; 171 172 #ifdef DEBUG_VIDEO_GEM 173 printf("sdl:video:gem: check mouse mode\n"); 174 #endif 175 176 /* If the mouse is hidden and input is grabbed, we use relative mode */ 177 GEM_mouse_relative = (!(SDL_cursorstate & CURSOR_VISIBLE)) 178 && (this->input_grab != SDL_GRAB_OFF) 179 && (SDL_GetAppState() & SDL_APPACTIVE); 180 SDL_AtariXbios_LockMousePosition(GEM_mouse_relative); 181 182 if (SDL_cursorstate & CURSOR_VISIBLE) { 183 /* Application defined cursor only over the application window */ 184 if ((SDL_GetAppState() & full_focus) == full_focus) { 185 if (GEM_cursor) { 186 graf_mouse(USER_DEF, GEM_cursor->mform_p); 187 set_system_cursor = 0; 188 } else { 189 show_system_cursor = 0; 190 } 191 } 192 } else { 193 /* Mouse cursor hidden only over the application window */ 194 if ((SDL_GetAppState() & full_focus) == full_focus) { 195 set_system_cursor = 0; 196 show_system_cursor = 0; 197 } 198 } 199 200 graf_mouse(show_system_cursor ? M_ON : M_OFF, NULL); 201 if (set_system_cursor) { 202 graf_mouse(ARROW, NULL); 203 } 204 } 205
