From dacd8dd5910b1e32e4a8c378fe9ac01b2bce695b Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jos=C3=A9=20Fonseca?= <jfonseca@vmware.com>
Date: Thu, 25 Nov 2010 17:50:26 +0000
Subject: [PATCH] Handle glXxxPointer

---
 glretrace.py | 33 +++++++++++++++++++++++++++------
 retrace.py   |  4 +++-
 2 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/glretrace.py b/glretrace.py
index 0724cff..3e2e922 100644
--- a/glretrace.py
+++ b/glretrace.py
@@ -26,12 +26,33 @@
 
 import stdapi
 import glapi
-import retrace
-
-
-class GlRetracer(retrace.Retracer):
-
-    pass
+from retrace import Retracer
+
+
+class GlRetracer(Retracer):
+
+    def extract_arg(self, function, arg, arg_type, lvalue, rvalue):
+        if function.name in [
+            "glColorPointer"
+            "glEdgeFlagPointer"
+            "glIndexPointer",
+            "glNormalPointer",
+            "glTexCoordPointer",
+            "glVertexPointer",
+            "glFogCoordPointer",
+            "glSecondaryColorPointer",
+            "glVertexAttribPointer",
+        ] and arg.name == 'pointer':
+            self.extract_pointer(function, arg, arg_type, lvalue, rvalue)
+        else:
+            Retracer.extract_arg(self, function, arg, arg_type, lvalue, rvalue)
+
+    def extract_pointer(self, function, arg, arg_type, lvalue, rvalue):
+        print '    if (dynamic_cast<Trace::Null *>(&%s)) {' % rvalue
+        print '        %s = 0;' % (lvalue)
+        print '    } else {'
+        print '        %s = (%s)(uintptr_t)(%s);' % (lvalue, arg_type, rvalue)
+        print '    }'
 
 
 if __name__ == '__main__':
diff --git a/retrace.py b/retrace.py
index a2d30a4..7525185 100644
--- a/retrace.py
+++ b/retrace.py
@@ -168,7 +168,7 @@ class Retracer:
             rvalue = 'call.arg(%u)' % (arg.index,)
             lvalue = arg.name
             try:
-                ValueExtractor().visit(arg_type, lvalue, rvalue)
+                self.extract_arg(function, arg, arg_type, lvalue, rvalue)
             except NotImplementedError:
                 success = False
                 print '    %s = 0; // FIXME' % arg.name
@@ -200,6 +200,8 @@ class Retracer:
         print '}'
         print
 
+    def extract_arg(self, function, arg, arg_type, lvalue, rvalue):
+        ValueExtractor().visit(arg_type, lvalue, rvalue)
 
     def retrace_functions(self, functions):
         for function in functions:
-- 
2.43.0