Mercurial > sdl-ios-xcode
view src/video/ataricommon/SDL_ataridevmouse.c @ 4249:429c8dd3175d SDL-1.2
Fixed bug #713
Don't clamp the mouse coordinates to the video surface size, instead clamp them to the last known window size.
This allows users to get the correct mouse coordinates even if they don't call SDL_SetVideoMode() in response to an SDL_VIDEORESIZE event (used as a hack to retain the OpenGL context on Windows and Linux after a window resize)
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 27 Sep 2009 05:18:43 +0000 |
parents | a1b03ba2fcd0 |
children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" /* MiNT /dev/mouse driver Patrice Mandin */ #include <fcntl.h> #include <unistd.h> #include "../../events/SDL_events_c.h" #include "SDL_ataridevmouse_c.h" /* Defines */ #define DEVICE_NAME "/dev/mouse" /* Local variables */ static int handle = -1; static int mouseb, prev_mouseb; /* Functions */ int SDL_AtariDevMouse_Open(void) { int r; const char *mousedev; /* TODO: Fix the MiNT device driver, that locks mouse for other applications, so this is disabled till fixed */ return 0; /* First, try SDL_MOUSEDEV device */ mousedev = SDL_getenv("SDL_MOUSEDEV"); if (!mousedev) { handle = open(mousedev, 0); } /* Failed, try default device */ if (handle<0) { handle = open(DEVICE_NAME, 0); } if (handle<0) { handle = -1; return 0; } /* Set non blocking mode */ r = fcntl(handle, F_GETFL, 0); if (r<0) { close(handle); handle = -1; return 0; } r |= O_NDELAY; r = fcntl(handle, F_SETFL, r); if (r<0) { close(handle); handle = -1; return 0; } prev_mouseb = 7; return 1; } void SDL_AtariDevMouse_Close(void) { if (handle>0) { close(handle); handle = -1; } } static int atari_GetButton(int button) { switch(button) { case 0: return SDL_BUTTON_RIGHT; case 1: return SDL_BUTTON_MIDDLE; default: break; } return SDL_BUTTON_LEFT; } void SDL_AtariDevMouse_PostMouseEvents(_THIS, SDL_bool buttonEvents) { unsigned char buffer[3]; int mousex, mousey; if (handle<0) { return; } mousex = mousey = 0; while (read(handle, buffer, sizeof(buffer))==sizeof(buffer)) { mouseb = buffer[0] & 7; mousex += (char) buffer[1]; mousey += (char) buffer[2]; /* Mouse button events */ if (buttonEvents && (mouseb != prev_mouseb)) { int i; for (i=0;i<3;i++) { int curbutton, prevbutton; curbutton = mouseb & (1<<i); prevbutton = prev_mouseb & (1<<i); if (curbutton && !prevbutton) { SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0); } if (!curbutton && prevbutton) { SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0); } } prev_mouseb = mouseb; } } /* Mouse motion event */ if (mousex || mousey) { SDL_PrivateMouseMotion(0, 1, mousex, -mousey); } }