diff options
| -rw-r--r-- | src/java/com/sun/gluegen/opengl/BuildComposablePipeline.java | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/java/com/sun/gluegen/opengl/BuildComposablePipeline.java b/src/java/com/sun/gluegen/opengl/BuildComposablePipeline.java index 5235631..542cd52 100644 --- a/src/java/com/sun/gluegen/opengl/BuildComposablePipeline.java +++ b/src/java/com/sun/gluegen/opengl/BuildComposablePipeline.java @@ -307,6 +307,11 @@ public class BuildComposablePipeline output.println(" }"); output.print( " this." + getDownstreamObjectName()); output.println(" = " + getDownstreamObjectName() + ";"); + output.println(" // Fetch GLContext object for better error checking (if possible)"); + output.println(" // FIXME: should probably put this method in GL rather than GLImpl"); + output.println(" if (" + getDownstreamObjectName() + " instanceof com.sun.opengl.impl.GLImpl) {"); + output.println(" _context = ((com.sun.opengl.impl.GLImpl) " + getDownstreamObjectName() + ").getContext();"); + output.println(" }"); output.println(" }"); output.println(); } @@ -398,8 +403,18 @@ public class BuildComposablePipeline output.println(" /** True if the pipeline is inside a glBegin/glEnd pair.*/"); output.println(" private boolean insideBeginEndPair = false;"); output.println(); - + output.println(" private void checkContext() {"); + output.println(" GLContext currentContext = GLContext.getCurrent();"); + output.println(" if (currentContext == null) {"); + output.println(" throw new GLException(\"No OpenGL context is current on this thread\");"); + output.println(" }"); + output.println(" if ((_context != null) && (_context != currentContext)) {"); + output.println(" throw new GLException(\"This GL object is being incorrectly used with a different GLContext than that which created it\");"); + output.println(" }"); + output.println(" }"); + output.println(" private GLContext _context;"); } + protected void emitClassDocComment(PrintWriter output) { output.println("/** <P> Composable pipline which wraps an underlying {@link GL} implementation,"); @@ -415,6 +430,7 @@ public class BuildComposablePipeline protected void preDownstreamCallHook(PrintWriter output, Method m) { + output.println(" checkContext();"); } protected void postDownstreamCallHook(PrintWriter output, Method m) |