19682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 29682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL - Simple DirectMedia Layer 39682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Copyright (C) 1997-2012 Sam Lantinga 49682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 59682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is free software; you can redistribute it and/or 69682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall modify it under the terms of the GNU Lesser General Public 79682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License as published by the Free Software Foundation; either 89682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall version 2.1 of the License, or (at your option) any later version. 99682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is distributed in the hope that it will be useful, 119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall but WITHOUT ANY WARRANTY; without even the implied warranty of 129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Lesser General Public License for more details. 149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall You should have received a copy of the GNU Lesser General Public 169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License along with this library; if not, write to the Free Software 179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Sam Lantinga 209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall slouken@libsdl.org 219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_config.h" 239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall MiNT /dev/mouse driver 269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Patrice Mandin 289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <fcntl.h> 319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <unistd.h> 329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "../../events/SDL_events_c.h" 349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_ataridevmouse_c.h" 359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Defines */ 379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define DEVICE_NAME "/dev/mouse" 399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Local variables */ 419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic int handle = -1; 439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic int mouseb, prev_mouseb; 449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Functions */ 469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_AtariDevMouse_Open(void) 489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int r; 509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall const char *mousedev; 519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* 539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall TODO: Fix the MiNT device driver, that locks mouse for other 549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall applications, so this is disabled till fixed 559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall */ 569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* First, try SDL_MOUSEDEV device */ 599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall mousedev = SDL_getenv("SDL_MOUSEDEV"); 609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (!mousedev) { 619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall handle = open(mousedev, 0); 629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Failed, try default device */ 659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (handle<0) { 669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall handle = open(DEVICE_NAME, 0); 679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (handle<0) { 709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall handle = -1; 719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Set non blocking mode */ 759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall r = fcntl(handle, F_GETFL, 0); 769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (r<0) { 779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall close(handle); 789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall handle = -1; 799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall r |= O_NDELAY; 839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall r = fcntl(handle, F_SETFL, r); 859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (r<0) { 869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall close(handle); 879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall handle = -1; 889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall prev_mouseb = 7; 929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 1; 939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_AtariDevMouse_Close(void) 969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (handle>0) { 989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall close(handle); 999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall handle = -1; 1009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic int atari_GetButton(int button) 1049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall switch(button) 1069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case 0: 1089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return SDL_BUTTON_RIGHT; 1099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case 1: 1109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return SDL_BUTTON_MIDDLE; 1119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall default: 1129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall break; 1139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return SDL_BUTTON_LEFT; 1169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_AtariDevMouse_PostMouseEvents(_THIS, SDL_bool buttonEvents) 1199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall unsigned char buffer[3]; 1219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int mousex, mousey; 1229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (handle<0) { 1249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return; 1259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall mousex = mousey = 0; 1289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall while (read(handle, buffer, sizeof(buffer))==sizeof(buffer)) { 1299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall mouseb = buffer[0] & 7; 1309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall mousex += (char) buffer[1]; 1319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall mousey += (char) buffer[2]; 1329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Mouse button events */ 1349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (buttonEvents && (mouseb != prev_mouseb)) { 1359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int i; 1369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall for (i=0;i<3;i++) { 1389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int curbutton, prevbutton; 1399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall curbutton = mouseb & (1<<i); 1419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall prevbutton = prev_mouseb & (1<<i); 1429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (curbutton && !prevbutton) { 1449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0); 1459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (!curbutton && prevbutton) { 1479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0); 1489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall prev_mouseb = mouseb; 1529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Mouse motion event */ 1569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (mousex || mousey) { 1579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_PrivateMouseMotion(0, 1, mousex, -mousey); 1589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 160