Initial import of the new Q2PRO tree.

1 files changed, 227 insertions, 0 deletions

diff --git a/source/in_evdev.c b/source/in_evdev.c
new file mode 100644
index 0000000..a34eabf
--- /dev/null
+++ b/source/in_evdev.c
@@ -0,0 +1,227 @@
+/*
+Copyright (C) 1997-2001 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "com_local.h"
+#include "key_public.h"
+#include "in_public.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <linux/input.h>
+#include <errno.h>
+
+#include <SDL.h>
+
+static cvar_t	*in_device;
+
+static qboolean mouseinitialized;
+static qboolean mouseactive;
+static int      evdev_fd;
+
+#define MAX_EVENTS    64
+#define EVENT_SIZE    sizeof( struct input_event )
+
+/*
+===========
+Evdev_SendMouseMoveEvents
+===========
+*/
+static void Evdev_SendMouseMoveEvents( void ) {
+	struct input_event ev[MAX_EVENTS];
+	fd_set fdset;
+	struct timeval timeout;
+	int bytes, count;
+	int dx, dy;
+	int i, button;
+    uint32 time;
+
+	if( !mouseinitialized ) {
+		return;
+	}
+
+	if( !mouseactive ) {
+		return;
+	}
+
+    FD_ZERO( &fdset );
+    FD_SET( evdev_fd, &fdset );
+    timeout.tv_sec = 0;
+    timeout.tv_usec = 0;
+    if( select( FD_SETSIZE, &fdset, NULL, NULL, &timeout ) == -1 ) {
+        return;
+    }
+        
+    if( !FD_ISSET( evdev_fd, &fdset ) ) {
+        return;
+    }
+
+    bytes = read( evdev_fd, ev, EVENT_SIZE * MAX_EVENTS );
+    if( bytes < EVENT_SIZE ) {
+        return;
+    }
+
+    dx = dy = 0;
+    count = bytes / EVENT_SIZE;
+    for( i = 0 ; i < count; i++ ) {
+        time = ev[i].time.tv_sec * 1000 + ev[i].time.tv_usec / 1000;
+        switch( ev[i].type ) {
+        case EV_KEY:
+            if( ev[i].code >= BTN_MOUSE && ev[i].code < BTN_MOUSE + 8 ) {
+                button = K_MOUSE1 + ev[i].code - BTN_MOUSE;
+                if( ev[i].value ) {
+                    Key_Event( button, qtrue, time );
+                } else {
+                    Key_Event( button, qfalse, time );
+                }
+            }
+            break;
+        case EV_REL: 
+            switch( ev[i].code ) { 
+            case REL_X: 
+                dx += ( int )ev[i].value; 
+                break; 
+            case REL_Y: 
+                dy += ( int )ev[i].value; 
+                break; 
+            case REL_WHEEL: 
+                if( ( int )ev[i].value == 1 ) {
+                    Key_Event( K_MWHEELUP, qtrue, time );
+                    Key_Event( K_MWHEELUP, qfalse, time );
+                } else if( ( int )ev[i].value == -1 ) {
+                    Key_Event( K_MWHEELDOWN, qtrue, time );
+                    Key_Event( K_MWHEELDOWN, qfalse, time );
+                }
+                break;
+            default:
+                break;
+            }
+        default:
+            break;
+        }
+    }
+
+
+	if( dx || dy ) {
+	    CL_MouseEvent( dx, dy );
+    }
+
+}
+
+/*
+===========
+Evdev_ShutdownMouse
+===========
+*/
+static void Evdev_ShutdownMouse( void ) {
+    if( !mouseinitialized ) {
+        return;
+    }
+    close( evdev_fd );
+	mouseinitialized = qfalse;
+    mouseactive = qfalse;
+}
+
+/*
+===========
+Evdev_StartupMouse
+===========
+*/
+static qboolean Evdev_InitMouse( void ) {
+	in_device = Cvar_Get( "in_device", "/dev/input/event2", CVAR_LATCH );
+    
+    evdev_fd = open( in_device->string, O_RDONLY );
+    
+	if( evdev_fd == -1 ) {
+        Com_EPrintf( "Couldn't open %s: %s\n", in_device->string,
+                strerror( errno ) );
+        return qfalse;
+    }
+    
+    fcntl( evdev_fd, F_SETFL, fcntl( evdev_fd, F_GETFL, 0 ) | FNDELAY );
+
+    Com_Printf( "Event interface initialized.\n" );
+	mouseinitialized = qtrue;
+
+	return qtrue;
+}
+
+/*
+===========
+Evdev_ActivateMouse
+
+Called when the main window gains or loses focus.
+The window may have been destroyed and recreated
+between a deactivate and an activate.
+===========
+*/
+static void Evdev_ActivateMouse( qboolean active ) {
+	if( !mouseinitialized ) {
+		return;
+	}
+
+	if( mouseactive == active ) {
+		return;
+	}
+    
+#ifdef EVIOCGRAB
+	if( ioctl( evdev_fd, EVIOCGRAB, active ) == -1 ) {
+        Com_EPrintf( "Grab/Release failed: %s\n", strerror( errno ) );
+    }
+#endif // EVIOCGRAB
+
+    if( active ) {
+        struct input_event ev;
+        
+	    SDL_ShowCursor( SDL_DISABLE );
+        
+        while( read( evdev_fd, &ev, EVENT_SIZE ) == EVENT_SIZE )
+            ;
+    } else {
+	    SDL_ShowCursor( SDL_ENABLE );
+    }
+
+	mouseactive = active;
+}
+
+/*
+===================
+Evdev_ClearMouseStates
+===================
+*/
+static void Evdev_ClearMouseStates( void ) {
+}
+
+/*
+@@@@@@@@@@@@@@@@@@@
+Evdev_FillAPI
+@@@@@@@@@@@@@@@@@@@
+*/
+void Evdev_FillAPI( inputAPI_t *api ) {
+	api->Init = Evdev_InitMouse;
+	api->Shutdown = Evdev_ShutdownMouse;
+	api->Activate = Evdev_ActivateMouse;
+	api->Frame = Evdev_SendMouseMoveEvents;
+	api->ClearStates = Evdev_ClearMouseStates;
+}
+
+