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authorBrian Paul <brianp@vmware.com>2009-06-03 15:36:24 -0600
committerBrian Paul <brianp@vmware.com>2009-06-03 17:16:00 -0600
commit4f4280b4356210e503aa5756db0a13dfb8253661 (patch)
tree943553fcba902e6eb4d604e6719a21f124d0a048
parentab4fd185843033cde0c58e8e0da932dbac7b8df2 (diff)
tnl: add some floating point sanity checks (disabled)
-rw-r--r--src/mesa/tnl/t_vb_program.c27
1 files changed, 25 insertions, 2 deletions
diff --git a/src/mesa/tnl/t_vb_program.c b/src/mesa/tnl/t_vb_program.c
index c35eaf1538..66c5e13729 100644
--- a/src/mesa/tnl/t_vb_program.c
+++ b/src/mesa/tnl/t_vb_program.c
@@ -1,8 +1,9 @@
/*
* Mesa 3-D graphics library
- * Version: 7.1
+ * Version: 7.6
*
- * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -46,6 +47,16 @@
#include "tnl/t_pipeline.h"
+#ifdef NAN_CHECK
+/** Check for NaNs and very large values */
+static INLINE void
+check_float(float x)
+{
+ assert(!IS_INF_OR_NAN(x));
+ assert(1.0e-15 <= x && x <= 1.0e15);
+}
+#endif
+
/*!
* Private storage for the vertex program pipeline stage.
@@ -351,6 +362,12 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
const GLuint size = VB->AttribPtr[attr]->size;
const GLuint stride = VB->AttribPtr[attr]->stride;
const GLfloat *data = (GLfloat *) (ptr + stride * i);
+#ifdef NAN_CHECK
+ check_float(data[0]);
+ check_float(data[1]);
+ check_float(data[2]);
+ check_float(data[3]);
+#endif
COPY_CLEAN_4V(machine.VertAttribs[attr], size, data);
}
}
@@ -361,6 +378,12 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
/* copy the output registers into the VB->attribs arrays */
for (j = 0; j < numOutputs; j++) {
const GLuint attr = outputs[j];
+#ifdef NAN_CHECK
+ check_float(machine.Outputs[attr][0]);
+ check_float(machine.Outputs[attr][1]);
+ check_float(machine.Outputs[attr][2]);
+ check_float(machine.Outputs[attr][3]);
+#endif
COPY_4V(store->results[attr].data[i], machine.Outputs[attr]);
}
#if 0