added error check (John Fay)

[freeglut] / src / freeglut_init.c

diff --git a/src/freeglut_init.c b/src/freeglut_init.c
index 6b6f3d5..9cc6a72 100644 (file)
--- a/src/freeglut_init.c
+++ b/src/freeglut_init.c
@@ -25,10 +25,6 @@
  * 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"
 
@@ -183,7 +179,7 @@ static void fghInitialize( const char* displayName )
 
         /* Register the window class */
         atom = RegisterClass( &wc );
-        assert( atom );
+        FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Not Registered", "fghInitialize" );
     }
 
     /* The screen dimensions can be obtained via GetSystemMetrics() calls */
@@ -219,8 +215,6 @@ void fgDeinitialize( void )
         return;
     }
 
-    /* fgState.Initialised = GL_FALSE; */
-
     /* If there was a menu created, destroy the rendering context */
     if( fgStructure.MenuContext )
     {
@@ -230,7 +224,7 @@ void fgDeinitialize( void )
 
     fgDestroyStructure( );
 
-    while( ( timer = fgState.Timers.First ) )
+    while( ( timer = fgState.Timers.First) )
     {
         fgListRemove( &fgState.Timers, &timer->Node );
         free( timer );
@@ -311,6 +305,8 @@ void fgDeinitialize( void )
     XCloseDisplay( fgDisplay.Display );
 
 #endif
+
+    fgState.Initialised = GL_FALSE;
 }
 
 /*
@@ -618,7 +614,7 @@ void FGAPIENTRY glutInit( int* pargc, char** argv )
      * size.
      */
 
-    if( geometry )
+    if (geometry )
     {
         unsigned int parsedWidth, parsedHeight;
         int mask = XParseGeometry( geometry,
@@ -691,18 +687,7 @@ static char* Tokens[] =
     "xstaticgray", "xgrayscale", "xstaticcolor", "xpseudocolor",
     "xtruecolor", "xdirectcolor",
     "xstaticgrey", "xgreyscale", "xstaticcolour", "xpseudocolour",
-    "xtruecolour", "xdirectcolour", "borderless"
-};
-
-static int TokenLengths[] =
-{
-    5,       4,      3,     4,      6,        10,           5,       6,
-    5,       5,       3,     3,     4,      3,     9,           7,
-    6,        6,        7,         4,      8,          8,          7,
-    11,            10,           12,             12,
-    10,           12,
-    11,            10,           13,             13,
-    11,            13,              10
+    "xtruecolour", "xdirectcolour", "borderless", "aux"
 };
 
 void FGAPIENTRY glutInitDisplayString( const char* displayMode )
@@ -725,7 +710,7 @@ void FGAPIENTRY glutInitDisplayString( const char* displayMode )
         int i ;
         for ( i = 0; i < NUM_TOKENS; i++ )
         {
-            if ( strncmp ( token, Tokens[i], TokenLengths[i] ) == 0 ) break ;
+            if ( strcmp ( token, Tokens[i] ) == 0 ) break ;
         }
 
         switch ( i )
@@ -878,7 +863,11 @@ void FGAPIENTRY glutInitDisplayString( const char* displayMode )
 #endif
             break ;
 
-        case 36 :  /* Unrecognized */
+        case 36 :  /* "aux":  some number of aux buffers */
+            glut_state_flag |= GLUT_AUX1;
+            break ;
+
+        case 37 :  /* Unrecognized */
             fgWarning ( "WARNING - Display string token not recognized:  %s",
                         token );
             break ;