100     TCAssertMsg( (ly     != NULL), "TCSetLayerAttributes: NULL layer ptr\n" );  in TCSetLayerAttributes()
129     TCAssertMsg( (ly != NULL), "TCSetLayerBuffer: NULL layer ptr\n"          );  in TCSetLayerBuffer()
191     TCAssertMsg( (ly != NULL),       "TCSetLayerValue: NULL layer ptr\n"            );  in TCSetLayerValue()
193     TCAssertMsg( (ly->data != NULL), "TCSetLayerValue: layer data ptr is not set\n" );  in TCSetLayerValue()
243     TCAssertMsg( (ly != NULL),       "TCGetLayerValue: NULL layer ptr\n"            );  in TCGetLayerValue()
245     TCAssertMsg( (ly->data != NULL), "TCGetLayerValue: layer data ptr is not set\n" );  in TCGetLayerValue()
246     TCAssertMsg( (riaPtr != NULL),   "TCGetLayerValue: NULL riaPtr\n"               );  in TCGetLayerValue()
257         if( gPtr != NULL )  in TCGetLayerValue()
261         if( bPtr != NULL )  in TCGetLayerValue()
301     TCAssertMsg( (dfPtr != NULL), "TCMakeImColorLayer: NULL TCFile ptr\n" );  in TCMakeImColorLayer()
302     TCAssertMsg( (newLy != NULL), "TCMakeImColorLayer: NULL layer ptr\n"  );  in TCMakeImColorLayer()
308 	newLy->data   = NULL;  in TCMakeImColorLayer()
330     TCAssertMsg( (dfPtr != NULL), "TCMakeImAlphaLayer: NULL TCFile ptr\n" );  in TCMakeImAlphaLayer()
331     TCAssertMsg( (newLy != NULL), "TCMakeImAlphaLayer: NULL layer ptr\n"  );  in TCMakeImAlphaLayer()
337 	newLy->data   = NULL;  in TCMakeImAlphaLayer()
346 			TCGetLayerValue(dfPtr->lyAlpha, col, row, &a, NULL, NULL);  in TCMakeImAlphaLayer()
347 			TCSetLayerValue(newLy, col, row,  a, NULL, NULL);  in TCMakeImAlphaLayer()
364 …TCAssertMsg( (dfPtr->palPtr != NULL), "TCConvertCI_To_RGB: TCFile %s has no palette\n", dfPtr->nam…  in TCConvertCI_To_RGB()
372 	lyColor.data = NULL;  in TCConvertCI_To_RGB()
381 			TCGetLayerValue( &imPtr->lyColor, col, row, &index, NULL, NULL );  in TCConvertCI_To_RGB()
384 			TCGetPalTableValue( dfPtr->palPtr, index, &r, &g, &b, NULL );  in TCConvertCI_To_RGB()
400     TCAssertMsg( (ly != NULL), "TCSetLayerType, Null TCLayer ptr\n" );  in TCSetLayerType()
422     TCAssertMsg( (ly != NULL), "TCSetLayerDimensions: NULL TCLayer ptr\n" );  in TCSetLayerDimensions()
439 	if( (src == NULL) || (dst == NULL ) )  in TCCopyLayer()