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Making the check for a current window in "glutPostRedisplay" more stringent
[freeglut]
/
src
/
freeglut_display.c
diff --git
a/src/freeglut_display.c
b/src/freeglut_display.c
index
0626981
..
2ba0ec5
100644
(file)
--- a/
src/freeglut_display.c
+++ b/
src/freeglut_display.c
@@
-36,7
+36,12
@@
void FGAPIENTRY glutPostRedisplay( void )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPostRedisplay" );
void FGAPIENTRY glutPostRedisplay( void )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPostRedisplay" );
- FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPostRedisplay" );
+ if ( ! fgStructure.CurrentWindow )
+ {
+ fgError ( " ERROR: Function <%s> called"
+ " with no current window defined.", "glutPostRedisplay" ) ;
+ }
+
fgStructure.CurrentWindow->State.Redisplay = GL_TRUE;
}
fgStructure.CurrentWindow->State.Redisplay = GL_TRUE;
}
@@
-48,6
+53,10
@@
void FGAPIENTRY glutSwapBuffers( void )
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSwapBuffers" );
FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSwapBuffers" );
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSwapBuffers" );
FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSwapBuffers" );
+ /*
+ * "glXSwapBuffers" already performs an implicit call to "glFlush". What
+ * about "SwapBuffers"?
+ */
glFlush( );
if( ! fgStructure.CurrentWindow->Window.DoubleBuffered )
return;
glFlush( );
if( ! fgStructure.CurrentWindow->Window.DoubleBuffered )
return;