1 files changed, 75 insertions, 0 deletions
diff --git a/src/VBox/GuestHost/OpenGL/state_tracker/convert.py b/src/VBox/GuestHost/OpenGL/state_tracker/convert.py
new file mode 100755
index 00000000..1adbf4e6
--- /dev/null
+++ b/src/VBox/GuestHost/OpenGL/state_tracker/convert.py
@@ -0,0 +1,75 @@
+# Copyright (c) 2001, Stanford University
+# All rights reserved.
+#
+# See the file LICENSE.txt for information on redistributing this software.
+
+from __future__ import print_function
+import sys
+
+# Two different paths to the packer and opengl_stub directories since this
+# script will be called from both cr/state_tracker/ and cr/spu/tilesort/.
+sys.path.append( '../packer' )
+sys.path.append( '../../packer' )
+sys.path.append( '../glapi_parser' )
+sys.path.append( '../../glapi_parser' )
+from pack_currenttypes import *
+import apiutil
+
+apiutil.CopyrightC()
+
+print('''
+#include "state/cr_statetypes.h"
+
+static double __read_double( const void *src )
+{
+    const unsigned int *ui = (const unsigned int *) src;
+    double d;
+    ((unsigned int *) &d)[0] = ui[0];
+    ((unsigned int *) &d)[1] = ui[1];
+    return d;
+}
+''')
+
+for k in sorted(gltypes.keys()):
+	for i in range(1,5):
+		print('static void __convert_%s%d (GLfloat *dst, const %s *src) {' % (k,i,gltypes[k]['type']))
+		if k == 'd':
+		  for j in range(i-1):
+		    print('\t*dst++ = (GLfloat) __read_double(src++);')
+		  print('\t*dst = (GLfloat) __read_double(src);')
+		else:
+		  for j in range(i-1):
+		    print('\t*dst++ = (GLfloat) *src++;')
+		  print('\t*dst = (GLfloat) *src;')
+		print('}\n')
+
+scale = {
+	'ub' : 'CR_MAXUBYTE',
+	'b'  : 'CR_MAXBYTE',
+	'us' : 'CR_MAXUSHORT',
+	's'  : 'CR_MAXSHORT',
+	'ui' : 'CR_MAXUINT',
+	'i'  : 'CR_MAXINT',
+	'f'  : '',
+	'd'  : ''
+}
+
+for k in sorted(gltypes.keys()):
+	if k != 'f' and k != 'd' and k != 'l':
+		if k[0:1] == "N":
+			k2 = k[1:]
+		else:
+			k2 = k
+		for i in range(1,5):
+			print('static void __convert_rescale_%s%d (GLfloat *dst, const %s *src) {' % (k,i,gltypes[k2]['type']))
+			for j in range(i-1):
+				print('\t*dst++ = ((GLfloat) *src++) / %s;' % scale[k2])
+			print('\t*dst = ((GLfloat) *src) / %s;' % scale[k2])
+			print('}\n')
+
+print('''
+
+static void __convert_boolean (GLboolean *dst, const GLboolean *src) {
+	*dst = *src;
+}
+''')