X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2FCommon%2Ffreeglut_input_devices.c;h=1dab040dccb95e2aff633fb444908e3057d45747;hb=1ede9f68f98e29ddd07bd466310967e716bfac92;hp=a1780d4def712113127d2eb11fcce256d7d7583a;hpb=3e5e3f51c272a95dc877b781281880061690b935;p=freeglut

diff --git a/src/Common/freeglut_input_devices.c b/src/Common/freeglut_input_devices.c
index a1780d4..1dab040 100644
--- a/src/Common/freeglut_input_devices.c
+++ b/src/Common/freeglut_input_devices.c
@@ -1,303 +1,213 @@
-/*
- * freeglut_input_devices.c
- *
- * Handles miscellaneous input devices via direct serial-port access.
- * Proper X11 XInput device support is not yet supported.
- * Also lacks Mac support.
- *
- * Written by Joe Krahn <krahn@niehs.nih.gov> 2005
- *
- * Copyright (c) 2005 Stephen J. Baker. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * PAWEL W. OLSZTA OR STEPHEN J. BAKER BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#ifdef HAVE_CONFIG_H
-#    include "config.h"
-#endif
-
-#include <GL/freeglut.h>
-#include "freeglut_internal.h"
-
-#if TARGET_HOST_POSIX_X11
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#include <sys/ioctl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <termios.h>
-#include <fcntl.h>
-
-struct {
-   int fd;
-   struct termios termio, termio_save;
-} _serialport;
-
-#endif
-
-typedef struct _serialport SERIALPORT;
-
-
-/********************* Dialbox definitions ***********************/
-
-#define DIAL_NUM_VALUATORS 8
-
-/* dial parser state machine states */
-#define DIAL_NEW                (-1)
-#define DIAL_WHICH_DEVICE       0
-#define DIAL_VALUE_HIGH         1
-#define DIAL_VALUE_LOW          2
-
-/* dial/button box commands */
-#define DIAL_INITIALIZE                 0x20
-#define DIAL_SET_LEDS                   0x75
-#define DIAL_SET_TEXT                   0x61
-#define DIAL_SET_AUTO_DIALS             0x50
-#define DIAL_SET_AUTO_DELTA_DIALS       0x51
-#define DIAL_SET_FILTER                 0x53
-#define DIAL_SET_BUTTONS_MOM_TYPE       0x71
-#define DIAL_SET_AUTO_MOM_BUTTONS       0x73
-#define DIAL_SET_ALL_LEDS               0x4b
-#define DIAL_CLEAR_ALL_LEDS             0x4c
-
-/* dial/button box replies and events */
-#define DIAL_INITIALIZED        0x20
-#define DIAL_BASE               0x30
-#define DIAL_DELTA_BASE         0x40
-#define DIAL_PRESS_BASE         0xc0
-#define DIAL_RELEASE_BASE       0xe0
-
-/* macros to determine reply type */
-#define IS_DIAL_EVENT(ch)       (((ch)>=DIAL_BASE)&&((ch)<DIAL_BASE+DIAL_NUM_VALUATORS))
-#define IS_KEY_PRESS(ch)        (((ch)>=DIAL_PRESS_BASE)&&((ch)<DIAL_PRESS_BASE+DIAL_NUM_BUTTONS))
-#define IS_KEY_RELEASE(ch)      (((ch)>=DIAL_RELEASE_BASE)&&((ch)<DIAL_RELEASE_BASE+DIAL_NUM_BUTTONS))
-#define IS_INIT_EVENT(ch)       ((ch)==DIAL_INITIALIZED)
-
-/*****************************************************************/
-
-extern SERIALPORT *serial_open ( const char *device );
-extern void serial_close ( SERIALPORT *port );
-extern int serial_getchar ( SERIALPORT *port );
-extern int serial_putchar ( SERIALPORT *port, unsigned char ch );
-extern void serial_flush ( SERIALPORT *port );
-
-extern void fgPlatformRegisterDialDevice ( const char *dial_device );
-static void send_dial_event(int dial, int value);
-static void poll_dials(int id);
-
-/* local variables */
-static SERIALPORT *dialbox_port=NULL;
-
-/*****************************************************************/
-
-/*
- * Implementation for glutDeviceGet(GLUT_HAS_DIAL_AND_BUTTON_BOX)
- */
-int fgInputDeviceDetect( void )
-{
-    fgInitialiseInputDevices ();
-
-    if ( !dialbox_port )
-        return 0;
-
-    if ( !fgState.InputDevsInitialised )
-        return 0;
-
-    return 1;
-}
-
-/*
- * Try initializing the input device(s)
- */
-#if TARGET_HOST_POSIX_X11
-static void fgPlatformRegisterDialDevice ( const char *dial_device )
-{
-}
-#endif
-
-void fgInitialiseInputDevices ( void )
-{
-    if( !fgState.InputDevsInitialised )
-    {
-        const char *dial_device=NULL;
-        dial_device = getenv ( "GLUT_DIALS_SERIAL" );
-		fgPlatformRegisterDialDevice ( dial_device );
-
-        if ( !dial_device ) return;
-        if ( !( dialbox_port = serial_open ( dial_device ) ) ) return;
-        serial_putchar(dialbox_port,DIAL_INITIALIZE);
-        glutTimerFunc ( 10, poll_dials, 0 );
-        fgState.InputDevsInitialised = GL_TRUE;
-    }
-}
-
-/*
- *
- */
-void fgInputDeviceClose( void )
-{
-    if ( fgState.InputDevsInitialised )
-    {
-        serial_close ( dialbox_port );
-        dialbox_port = NULL;
-        fgState.InputDevsInitialised = GL_FALSE;
-    }
-}
-
-/********************************************************************/
-
-/* Check all windows for dialbox callbacks */
-static void fghcbEnumDialCallbacks ( SFG_Window *window, SFG_Enumerator *enumerator )
-{
-    /* Built-in to INVOKE_WCB():  if window->Callbacks[CB_Dials] */
-    INVOKE_WCB ( *window,Dials, ( ((int*)enumerator->data)[0], ((int*)enumerator->data)[1]) );
-    fgEnumSubWindows ( window, fghcbEnumDialCallbacks, enumerator );
-}
-
-static void send_dial_event ( int num, int value )
-{
-    SFG_Enumerator enumerator;
-    int data[2];
-    data[0] = num;
-    data[1] = value;
-    enumerator.found = GL_FALSE;
-    enumerator.data  =  data;
-    fgEnumWindows ( fghcbEnumDialCallbacks, &enumerator );
-}
-
-/********************************************************************/
-static void poll_dials ( int id )
-{
-    int data;
-    static int dial_state = DIAL_NEW;
-    static int dial_which;
-    static int dial_value;
-    static int dials[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
-
-    if ( !dialbox_port ) return;
-
-    while ( (data=serial_getchar(dialbox_port)) != EOF )
-    {
-        if ( ( dial_state > DIAL_WHICH_DEVICE ) || IS_DIAL_EVENT ( data ) )
-        {
-            switch ( dial_state )
-            {
-            case DIAL_WHICH_DEVICE:
-                dial_which = data - DIAL_BASE;
-                dial_state++;
-                break;
-            case DIAL_VALUE_HIGH:
-                dial_value = ( data << 8 );
-                dial_state++;
-                break;
-            case DIAL_VALUE_LOW:
-                dial_value |= data;
-                if ( dial_value & 0x8000 ) dial_value -= 0x10000;
-                dials[dial_which] = dial_value;
-                send_dial_event ( dial_which + 1, dial_value * 360 / 256 );
-                dial_state = DIAL_WHICH_DEVICE;
-                break;
-            default:
-                /* error: Impossible state value! */
-                break;
-            }
-        }
-        else if ( data == DIAL_INITIALIZED )
-        {
-            fgState.InputDevsInitialised = GL_TRUE;
-            dial_state = DIAL_WHICH_DEVICE;
-            serial_putchar(dialbox_port,DIAL_SET_AUTO_DIALS);
-            serial_putchar(dialbox_port,0xff);
-            serial_putchar(dialbox_port,0xff);
-        }
-        else  /* Unknown data; try flushing. */
-            serial_flush(dialbox_port);
-    }
-
-    glutTimerFunc ( 2, poll_dials, 0 );
-}
-
-
-/******** OS Specific Serial I/O routines *******/
-#if TARGET_HOST_POSIX_X11 /* ==> Linux/BSD/UNIX POSIX serial I/O */
-static SERIALPORT *serial_open ( const char *device )
-{
-    int fd;
-    struct termios termio;
-    SERIALPORT *port;
-
-    fd = open(device, O_RDWR | O_NONBLOCK );
-    if (fd <0) {
-        perror(device);
-        return NULL;
-    }
-
-    port = malloc(sizeof(SERIALPORT));
-    memset(port, 0, sizeof(SERIALPORT));
-    port->fd = fd;
-
-    /* save current port settings */
-    tcgetattr(fd,&port->termio_save);
-
-    memset(&termio, 0, sizeof(termio));
-    termio.c_cflag = CS8 | CREAD | HUPCL ;
-    termio.c_iflag = IGNPAR | IGNBRK ;
-    termio.c_cc[VTIME]    = 0;   /* inter-character timer */
-    termio.c_cc[VMIN]     = 1;   /* block read until 1 chars received, when blocking I/O */
-
-    cfsetispeed(&termio, B9600);
-    cfsetospeed(&termio, B9600);
-    tcsetattr(fd,TCSANOW,&termio);
-
-    serial_flush(port);
-    return port;
-}
-
-static void serial_close(SERIALPORT *port)
-{
-    if (port)
-    {
-        /* restore old port settings */
-        tcsetattr(port->fd,TCSANOW,&port->termio_save);
-        close(port->fd);
-        free(port);
-    }
-}
-
-static int serial_getchar(SERIALPORT *port)
-{
-    unsigned char ch;
-    if (!port) return EOF;
-    if (read(port->fd,&ch,1)) return ch;
-    return EOF;
-}
-
-static int serial_putchar(SERIALPORT *port, unsigned char ch){
-    if (!port) return 0;
-    return write(port->fd,&ch,1);
-}
-
-static void serial_flush ( SERIALPORT *port )
-{
-    tcflush ( port->fd, TCIOFLUSH );
-}
-
-#endif
+/*
+ * freeglut_input_devices.c
+ *
+ * Handles miscellaneous input devices via direct serial-port access.
+ * Proper X11 XInput device support is not yet supported.
+ * Also lacks Mac support.
+ *
+ * Written by Joe Krahn <krahn@niehs.nih.gov> 2005
+ *
+ * Copyright (c) 2005 Stephen J. Baker. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PAWEL W. OLSZTA OR STEPHEN J. BAKER BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#    include "config.h"
+#endif
+
+#include <GL/freeglut.h>
+#include "freeglut_internal.h"
+
+typedef struct _serialport SERIALPORT;
+
+
+/********************* Dialbox definitions ***********************/
+
+#define DIAL_NUM_VALUATORS 8
+
+/* dial parser state machine states */
+#define DIAL_NEW                (-1)
+#define DIAL_WHICH_DEVICE       0
+#define DIAL_VALUE_HIGH         1
+#define DIAL_VALUE_LOW          2
+
+/* dial/button box commands */
+#define DIAL_INITIALIZE                 0x20
+#define DIAL_SET_LEDS                   0x75
+#define DIAL_SET_TEXT                   0x61
+#define DIAL_SET_AUTO_DIALS             0x50
+#define DIAL_SET_AUTO_DELTA_DIALS       0x51
+#define DIAL_SET_FILTER                 0x53
+#define DIAL_SET_BUTTONS_MOM_TYPE       0x71
+#define DIAL_SET_AUTO_MOM_BUTTONS       0x73
+#define DIAL_SET_ALL_LEDS               0x4b
+#define DIAL_CLEAR_ALL_LEDS             0x4c
+
+/* dial/button box replies and events */
+#define DIAL_INITIALIZED        0x20
+#define DIAL_BASE               0x30
+#define DIAL_DELTA_BASE         0x40
+#define DIAL_PRESS_BASE         0xc0
+#define DIAL_RELEASE_BASE       0xe0
+
+/* macros to determine reply type */
+#define IS_DIAL_EVENT(ch)       (((ch)>=DIAL_BASE)&&((ch)<DIAL_BASE+DIAL_NUM_VALUATORS))
+#define IS_KEY_PRESS(ch)        (((ch)>=DIAL_PRESS_BASE)&&((ch)<DIAL_PRESS_BASE+DIAL_NUM_BUTTONS))
+#define IS_KEY_RELEASE(ch)      (((ch)>=DIAL_RELEASE_BASE)&&((ch)<DIAL_RELEASE_BASE+DIAL_NUM_BUTTONS))
+#define IS_INIT_EVENT(ch)       ((ch)==DIAL_INITIALIZED)
+
+/*****************************************************************/
+
+extern SERIALPORT *serial_open ( const char *device );
+extern void serial_close ( SERIALPORT *port );
+extern int serial_getchar ( SERIALPORT *port );
+extern int serial_putchar ( SERIALPORT *port, unsigned char ch );
+extern void serial_flush ( SERIALPORT *port );
+
+extern void fgPlatformRegisterDialDevice ( const char *dial_device );
+static void send_dial_event(int dial, int value);
+static void poll_dials(int id);
+
+/* local variables */
+static SERIALPORT *dialbox_port=NULL;
+
+/*****************************************************************/
+
+/*
+ * Implementation for glutDeviceGet(GLUT_HAS_DIAL_AND_BUTTON_BOX)
+ */
+int fgInputDeviceDetect( void )
+{
+    fgInitialiseInputDevices ();
+
+    if ( !dialbox_port )
+        return 0;
+
+    if ( !fgState.InputDevsInitialised )
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Try initializing the input device(s)
+ */
+void fgInitialiseInputDevices ( void )
+{
+    if( !fgState.InputDevsInitialised )
+    {
+        const char *dial_device=NULL;
+        dial_device = getenv ( "GLUT_DIALS_SERIAL" );
+		fgPlatformRegisterDialDevice ( dial_device );
+
+        if ( !dial_device ) return;
+        if ( !( dialbox_port = serial_open ( dial_device ) ) ) return;
+        serial_putchar(dialbox_port,DIAL_INITIALIZE);
+        glutTimerFunc ( 10, poll_dials, 0 );
+        fgState.InputDevsInitialised = GL_TRUE;
+    }
+}
+
+/*
+ *
+ */
+void fgInputDeviceClose( void )
+{
+    if ( fgState.InputDevsInitialised )
+    {
+        serial_close ( dialbox_port );
+        dialbox_port = NULL;
+        fgState.InputDevsInitialised = GL_FALSE;
+    }
+}
+
+/********************************************************************/
+
+/* Check all windows for dialbox callbacks */
+static void fghcbEnumDialCallbacks ( SFG_Window *window, SFG_Enumerator *enumerator )
+{
+    /* Built-in to INVOKE_WCB():  if window->Callbacks[CB_Dials] */
+    INVOKE_WCB ( *window,Dials, ( ((int*)enumerator->data)[0], ((int*)enumerator->data)[1]) );
+    fgEnumSubWindows ( window, fghcbEnumDialCallbacks, enumerator );
+}
+
+static void send_dial_event ( int num, int value )
+{
+    SFG_Enumerator enumerator;
+    int data[2];
+    data[0] = num;
+    data[1] = value;
+    enumerator.found = GL_FALSE;
+    enumerator.data  =  data;
+    fgEnumWindows ( fghcbEnumDialCallbacks, &enumerator );
+}
+
+/********************************************************************/
+static void poll_dials ( int id )
+{
+    int data;
+    static int dial_state = DIAL_NEW;
+    static int dial_which;
+    static int dial_value;
+    static int dials[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+
+    if ( !dialbox_port ) return;
+
+    while ( (data=serial_getchar(dialbox_port)) != EOF )
+    {
+        if ( ( dial_state > DIAL_WHICH_DEVICE ) || IS_DIAL_EVENT ( data ) )
+        {
+            switch ( dial_state )
+            {
+            case DIAL_WHICH_DEVICE:
+                dial_which = data - DIAL_BASE;
+                dial_state++;
+                break;
+            case DIAL_VALUE_HIGH:
+                dial_value = ( data << 8 );
+                dial_state++;
+                break;
+            case DIAL_VALUE_LOW:
+                dial_value |= data;
+                if ( dial_value & 0x8000 ) dial_value -= 0x10000;
+                dials[dial_which] = dial_value;
+                send_dial_event ( dial_which + 1, dial_value * 360 / 256 );
+                dial_state = DIAL_WHICH_DEVICE;
+                break;
+            default:
+                /* error: Impossible state value! */
+                break;
+            }
+        }
+        else if ( data == DIAL_INITIALIZED )
+        {
+            fgState.InputDevsInitialised = GL_TRUE;
+            dial_state = DIAL_WHICH_DEVICE;
+            serial_putchar(dialbox_port,DIAL_SET_AUTO_DIALS);
+            serial_putchar(dialbox_port,0xff);
+            serial_putchar(dialbox_port,0xff);
+        }
+        else  /* Unknown data; try flushing. */
+            serial_flush(dialbox_port);
+    }
+
+    glutTimerFunc ( 2, poll_dials, 0 );
+}
+