Adding a Frequently Asked Questions file

[freeglut] / src / freeglut_misc.c

diff --git a/src/freeglut_misc.c b/src/freeglut_misc.c
index 932f6c7..b2b3a2c 100644 (file)
--- a/src/freeglut_misc.c
+++ b/src/freeglut_misc.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"
 
@@ -54,8 +50,8 @@ int FGAPIENTRY glutExtensionSupported( const char* extension )
   const int len = strlen( extension );
 
   /* Make sure there is a current window, and thus a current context available */
-  freeglut_assert_ready;
-  freeglut_return_val_if_fail( fgStructure.Window != NULL, 0 );
+  FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutExtensionSupported" );
+  freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );
 
   if (strchr(extension, ' '))
     return 0;
@@ -86,6 +82,7 @@ int FGAPIENTRY glutExtensionSupported( const char* extension )
 void FGAPIENTRY glutReportErrors( void )
 {
     GLenum error;
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReportErrors" );
     while( ( error = glGetError() ) != GL_NO_ERROR )
         fgWarning( "GL error: %s", gluErrorString( error ) );
 }
@@ -95,10 +92,10 @@ void FGAPIENTRY glutReportErrors( void )
  */
 void FGAPIENTRY glutIgnoreKeyRepeat( int ignore )
 {
-    freeglut_assert_ready;
-    freeglut_assert_window;
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIgnoreKeyRepeat" );
+    FREEGLUT_EXIT_IF_NO_WINDOW ( "glutIgnoreKeyRepeat" );
 
-    fgStructure.Window->State.IgnoreKeyRepeat = ignore ? GL_TRUE : GL_FALSE;
+    fgStructure.CurrentWindow->State.IgnoreKeyRepeat = ignore ? GL_TRUE : GL_FALSE;
 }
 
 /*
@@ -111,7 +108,7 @@ void FGAPIENTRY glutIgnoreKeyRepeat( int ignore )
  */
 void FGAPIENTRY glutSetKeyRepeat( int repeatMode )
 {
-    freeglut_assert_ready;
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetKeyRepeat" );
 
     switch( repeatMode )
     {
@@ -135,12 +132,12 @@ void FGAPIENTRY glutSetKeyRepeat( int repeatMode )
  */
 void FGAPIENTRY glutForceJoystickFunc( void )
 {
-#if !TARGET_HOST_WINCE
-    freeglut_assert_ready;
-    freeglut_return_if_fail( fgStructure.Window != NULL );
-    freeglut_return_if_fail( FETCH_WCB( *( fgStructure.Window ), Joystick ) );
-    fgJoystickPollWindow( fgStructure.Window );
-#endif /* !TARGET_HOST_WINCE */
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutForceJoystickFunc" );
+#if !defined(_WIN32_WCE)
+    freeglut_return_if_fail( fgStructure.CurrentWindow != NULL );
+    freeglut_return_if_fail( FETCH_WCB( *( fgStructure.CurrentWindow ), Joystick ) );
+    fgJoystickPollWindow( fgStructure.CurrentWindow );
+#endif /* !defined(_WIN32_WCE) */
 }
 
 /*
@@ -148,6 +145,7 @@ void FGAPIENTRY glutForceJoystickFunc( void )
  */
 void FGAPIENTRY glutSetColor( int nColor, GLfloat red, GLfloat green, GLfloat blue )
 {
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetColor" );
     /* We really need to do something here. */
 }
 
@@ -156,6 +154,7 @@ void FGAPIENTRY glutSetColor( int nColor, GLfloat red, GLfloat green, GLfloat bl
  */
 GLfloat FGAPIENTRY glutGetColor( int color, int component )
 {
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetColor" );
     /* We really need to do something here. */
     return( 0.0f );
 }
@@ -165,6 +164,7 @@ GLfloat FGAPIENTRY glutGetColor( int color, int component )
  */
 void FGAPIENTRY glutCopyColormap( int window )
 {
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCopyColormap" );
     /* We really need to do something here. */
 }