Use vsnprintf instead of the potentially dangerous sprintf to avoid
warnings. Using snprintf directly would be a little bit more tricky, because once again Microsoft decided to avoid followind standards and provide _snprintf instead. We could use this, too, but this would require an additional autoconf check, which I'd like to avoid, if possible. Note: If VS *still* issues warnings, but this time about vsnprintf, somebody should add some pragmas or whatever is needed to shut up that warning, it would be silly. git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@783 7f0cb862-5218-0410-a997-914c9d46530a
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@ -7,6 +7,7 @@
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#include <GL/freeglut.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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static int sequence_number = 0 ;
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@ -28,10 +29,23 @@ int mouse_button = -1, mouse_updown = -1, mouse_x = -1, mouse_y = -1, mouse_seq
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int mousewheel_number = -1, mousewheel_direction = -1, mousewheel_x = -1, mousewheel_y = -1, mousewheel_seq = -1 ;
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int motion_x = -1, motion_y = -1, motion_seq = -1 ;
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int passivemotion_x = -1, passivemotion_y = -1, passivemotion_seq = -1 ;
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static void
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bitmapPrintf (const char *fmt, ...)
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{
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static char buf[256];
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va_list args;
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va_start(args, fmt);
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(void) vsnprintf (buf, sizeof(buf), fmt, args);
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va_end(args);
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)buf ) ;
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}
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static void
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Display(void)
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{
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char line[180] ;
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int window = glutGetWindow () ;
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glClear ( GL_COLOR_BUFFER_BIT );
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@ -49,68 +63,57 @@ Display(void)
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if ( reshape_called )
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{
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sprintf ( line, "Reshape %d: %d %d\n", reshape_seq, reshape_width, reshape_height );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Reshape %d: %d %d\n", reshape_seq, reshape_width, reshape_height );
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}
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if ( key_called )
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{
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sprintf ( line, "Key %d: %d(%c) %d %d\n", key_seq, key_key, key_key, key_x, key_y );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Key %d: %d(%c) %d %d\n", key_seq, key_key, key_key, key_x, key_y );
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}
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if ( special_called )
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{
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sprintf ( line, "Special %d: %d(%c) %d %d\n", special_seq, special_key, special_key, special_x, special_y );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Special %d: %d(%c) %d %d\n", special_seq, special_key, special_key, special_x, special_y );
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}
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if ( visibility_called )
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{
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sprintf ( line, "Visibility %d: %d\n", visibility_seq, visibility_vis );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Visibility %d: %d\n", visibility_seq, visibility_vis );
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}
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if ( keyup_called )
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{
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sprintf ( line, "Key Up %d: %d(%c) %d %d\n", keyup_seq, keyup_key, keyup_key, keyup_x, keyup_y );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Key Up %d: %d(%c) %d %d\n", keyup_seq, keyup_key, keyup_key, keyup_x, keyup_y );
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}
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if ( specialup_called )
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{
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sprintf ( line, "Special Up %d: %d(%c) %d %d\n", specialup_seq, specialup_key, specialup_key, specialup_x, specialup_y );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Special Up %d: %d(%c) %d %d\n", specialup_seq, specialup_key, specialup_key, specialup_x, specialup_y );
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}
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if ( joystick_called )
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{
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sprintf ( line, "Joystick %d: %d %d %d %d\n", joystick_seq, joystick_a, joystick_b, joystick_c, joystick_d );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Joystick %d: %d %d %d %d\n", joystick_seq, joystick_a, joystick_b, joystick_c, joystick_d );
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}
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if ( mouse_called )
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{
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sprintf ( line, "Mouse %d: %d %d %d %d\n", mouse_seq, mouse_button, mouse_updown, mouse_x, mouse_y );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Mouse %d: %d %d %d %d\n", mouse_seq, mouse_button, mouse_updown, mouse_x, mouse_y );
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}
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if ( mousewheel_called )
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{
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sprintf ( line, "Mouse Wheel %d: %d %d %d %d\n", mousewheel_seq, mousewheel_number, mousewheel_direction, mousewheel_x, mousewheel_y );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Mouse Wheel %d: %d %d %d %d\n", mousewheel_seq, mousewheel_number, mousewheel_direction, mousewheel_x, mousewheel_y );
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}
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if ( motion_called )
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{
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sprintf ( line, "Motion %d: %d %d\n", motion_seq, motion_x, motion_y );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Motion %d: %d %d\n", motion_seq, motion_x, motion_y );
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}
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if ( passivemotion_called )
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{
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sprintf ( line, "Passive Motion %d: %d %d\n", passivemotion_seq, passivemotion_x, passivemotion_y );
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line );
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bitmapPrintf ( "Passive Motion %d: %d %d\n", passivemotion_seq, passivemotion_x, passivemotion_y );
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}
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glMatrixMode ( GL_PROJECTION );
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@ -29,6 +29,7 @@
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/* Include Files */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <math.h>
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#include <GL/freeglut.h>
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@ -242,10 +243,19 @@ void draw_curve ( int index, double position [ NUM_POINTS ][3] )
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glEnd () ;
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}
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void bitmapPrintf (const char *fmt, ...)
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{
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static char buf[256];
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va_list args;
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va_start(args, fmt);
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(void) vsnprintf (buf, sizeof(buf), fmt, args);
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va_end(args);
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)buf ) ;
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}
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void display_cb ( void )
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{
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char string [ 80 ] ;
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glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ) ;
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glColor3d ( 1.0, 1.0, 1.0 ) ; /* White */
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@ -267,9 +277,8 @@ void display_cb ( void )
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/* Print the distance between the two points */
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glColor3d ( 1.0, 1.0, 1.0 ) ; /* White */
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sprintf ( string, "Distance: %10.6f", distance ) ;
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glRasterPos2i ( 1, 1 ) ;
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)string ) ;
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bitmapPrintf ( "Distance: %10.6f", distance ) ;
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glutSwapBuffers();
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}
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@ -180,15 +180,6 @@ static const entry table [] =
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Limitation: Cannot address pixels.
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Limitation: Renders in screen coords, not model coords.
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\note Uses a fixed, 256-byte array for holding strings.
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The best way around this would be to use vasprintf(),
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but that is not available on WIN32, I believe.
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Another alternative would be to write our own formatter
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from scratch and emit the characters one at a time to
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the GLUT bitmap single-character drawing routine.
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We could also use vsnprintf(), but I'm not sure if
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that is standard...
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*/
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static void shapesPrintf (int row, int col, const char *fmt, ...)
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{
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@ -198,7 +189,7 @@ static void shapesPrintf (int row, int col, const char *fmt, ...)
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va_list args;
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va_start(args, fmt);
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(void) vsprintf (buf, fmt, args);
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(void) vsnprintf (buf, sizeof(buf), fmt, args);
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va_end(args);
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glGetIntegerv(GL_VIEWPORT,viewport);
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